WO2007072660A1 - Film-covered electric device in case - Google Patents
Film-covered electric device in case Download PDFInfo
- Publication number
- WO2007072660A1 WO2007072660A1 PCT/JP2006/323796 JP2006323796W WO2007072660A1 WO 2007072660 A1 WO2007072660 A1 WO 2007072660A1 JP 2006323796 W JP2006323796 W JP 2006323796W WO 2007072660 A1 WO2007072660 A1 WO 2007072660A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- film
- case
- engaging
- claw
- engagement
- Prior art date
Links
- 210000000078 claw Anatomy 0.000 claims abstract description 78
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 238000004806 packaging method and process Methods 0.000 claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 238000010248 power generation Methods 0.000 claims abstract description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000005001 laminate film Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- -1 nickel metal hydride Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/10—Housing; Encapsulation
- H01G2/103—Sealings, e.g. for lead-in wires; Covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
- H01G11/80—Gaskets; Sealings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
- H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention relates to a cased film-clad electrical device in which a film-clad electrical device such as a lithium ion secondary battery is accommodated in a case.
- a film-clad battery 120 shown in FIG. 7 includes a packaging bag 124 that also has a laminate film force, and a power generation element (not shown) housed in the packaging bag 124.
- the thickness of the illustrated film-clad battery 120 is several mm to several tens of mm.
- a sealing portion 123 in which laminated films are bonded together is formed on the outer peripheral portion of the packaging bag 124.
- voltage extraction electrode tabs 125 a and 125 b are drawn out from the sealing portion 123.
- a cell case 130 that houses the film-clad battery 120 is often used (see, for example, JP-A-2005-122927).
- the reason for using the cell case is to improve the convenience of handling the film-clad battery 120 and to prevent the film from being damaged.
- the outer shape of the cell case 130 is not particularly limited. However, the general cell case 130 is also configured with the upper case 134 and the lower case 135 as shown in the figure. Each of the upper case 134 and the lower case 135 has a frame-shaped outer periphery. Disclosure of the Invention The film case battery is held in the cell case 130 by sandwiching the sealing part 123 of the film case battery 120 between the opposing outer peripheral parts of the upper case 134 and the lower case 135
- FIG. 8 is a longitudinal sectional view showing the engaging claw and its peripheral structure shown in FIG.
- two engaging claws 132 are provided on the outer peripheral portion of the upper case 134. As shown in FIG. 8, the engaging claw 132 is inserted into the engaging groove 137 provided in the lower case 135 and engages with the engaging groove 137.
- the sealing portion 123 of the film-clad battery 120 is sandwiched between the lower surface 133 of the engaging claw 132 and a part of the engaging groove 137 (receiving surface 139).
- an object of the present invention is to solve the above problems. Specifically, an object of the present invention is to provide a cased film-covered electrical device provided with a pair of case bodies capable of stably holding the sealing portion of the film-wrapped electrical device without rattling.
- the cased film-clad electrical device of the present invention is a film-clad electrical device in which a power generation element that stores and outputs electrical energy is enclosed in a packaging bag made of a flexible film.
- An air device a cell case having a first case body and a second case body capable of sandwiching a sealing portion formed on an outer peripheral portion of the packaging bag, and an engagement formed on the first case body And an engaging groove formed in the second case body and into which the engaging claw is inserted.
- At least a part of the sealing portion of the packaging bag is sandwiched between a gap between the engagement groove and the engagement claw inserted into the engagement groove. The gap gradually narrows as the engagement pawl is inserted into the engagement groove.
- the sealing portion is securely sandwiched. Moreover, even if the thickness of the sealing portion varies, the sealing portion is securely held.
- the engagement claw may be wedge-shaped.
- an inclined sliding surface for moving the engaging claw in a direction in which the gap is narrowed is formed in the engaging claw, and another sliding parallel to the sliding surface is formed in the engaging groove. It is preferable to form a moving surface.
- the first case body can be provided with a biasing member that applies a biasing force for inserting the engagement claw into the engagement groove.
- the insertion direction of the engagement claw into the engagement groove is preferably a direction orthogonal to the stacking direction of the first case body and the second case body.
- FIG. 1 is an exploded perspective view showing a cased film-wrapped electric device according to the first embodiment.
- FIG. 2 is an enlarged perspective view around the engaging portion of the cell case of FIG. 1.
- FIG. 3 is an exploded perspective view of the upper case and the lower case.
- FIG. 4 is a process diagram showing a process of engaging an engaging claw with an engaging groove.
- FIG. 5 is a longitudinal sectional view showing another example of the engaging portion.
- FIG. 6 is a partially enlarged view showing the upper case of the second embodiment.
- FIG. 7 is an exploded perspective view showing a conventional cell case.
- FIG. 8 is a longitudinal sectional view showing an engagement state between an engagement claw and an engagement groove of the cell case of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is an exploded perspective view showing a cased film-covered electrical device of the present embodiment.
- FIG. 2 is an enlarged perspective view showing the periphery of the engaging portion of the cell case of FIG.
- FIG. 3 is a perspective view showing the disassembled upper case and lower case.
- the basic structure of the cased film-wrapped electrical device 50 of the present embodiment shown in FIGS. 1 to 3 is the same as the basic structure of a conventional cased film-wrapped electrical device.
- the electric device 50 includes a film-clad battery 20 that stores and outputs electrical energy via the electrode tabs 25a and 25b, and a cell case 30 that accommodates the film-clad battery 20.
- the shape force of the engaging claw provided in the cell case 30 is different from the shape of the engaging claw provided in the conventional cell case shown in FIGS. 7 and 8.
- the packaging bag 24 has a structure in which two upper and lower films are bonded together, and a sealing portion 23 in which the films are heat-sealed is formed on the outer periphery of the packaging bag 24 over the entire circumference.
- the packaging bag 24 has a rectangular outer shape, and a positive electrode tab 25a and a negative electrode tab 25b are drawn out from two short sides.
- a film-clad battery is not limited to the said structure and shape.
- the film-clad battery includes all common film-clad batteries.
- the cell case 30 has an upper case (first case body) 3 4 and a lower case (second case body) 35 formed of a resin material, and a film exterior is formed by the pair of case bodies.
- the sealing part 23 of the battery 20 is clamped.
- the outer peripheral portions of the upper case 34 and the lower case 35 of the present embodiment are formed in a frame shape, and this frame-shaped portion sandwiches the entire periphery of the sealing portion 23.
- the engaging claw 32 is formed on the lower surface side of the upper case 34. Specifically, on each long side portion of the upper case 34, two engagement claws 32 are provided at a predetermined interval in the X direction. In FIG. 1, only the two engaging claws 32 provided on the long side portion on the front side in the Y direction are depicted. Similarly, two engaging claws 32 are formed on the long side portion on the far side. ing.
- the lower case 35 is formed with an engagement groove 37 that can engage with the engagement claw 32.
- the engagement groove 37 is dug in the Y direction as shown in FIGS. 2 and 3, and the upper surface 38 and the receiving surface 39 of the engagement groove 37 are parallel to each other.
- the shape of the engagement groove 37 is not limited to the illustrated shape.
- the cross-sectional shape of the engaging claw 32 is a wedge shape. That is, the engaging claw 32 basically has an L-shaped cross-sectional shape.
- the sliding surface 31 is formed in the portion inserted into the engaging groove 37.
- the sliding surface 31 is inclined with respect to the horizontal bottom surface (pressing surface 33) of the engaging claw 32. More specifically, the sliding surface 31 is inclined so as to approach the pressing surface 33 toward the distal end side of the engaging claw 32. That is, the portion inserted into the engaging groove 37 of the locking claw 32 has a tapered shape.
- FIG. 2 shows a completed state of the cased film-wrapped electrical device 50 of the present embodiment.
- the engaging claw 32 engages with the engaging groove 37, and the film-clad battery 20 between the pressing surface 33 on the upper case 34 side and the receiving surface 39 on the lower case 35 side.
- the sealing portion 23 is sandwiched. Further, since the distal end side of the engaging claw 32 enters the engaging groove 37, the upper case 34 and the lower case 35 are not separated in the vertical direction (stacking direction).
- the pressing surface 33 and the receiving surface 39 are parallel to each other.
- the film-clad battery 20 is disposed on the lower case 35.
- the sealing portion 23 is positioned on the receiving surface 39 in the engaging groove 37.
- the film-clad battery 20 and the case 35 may be fixed (temporarily fixed) using an adhesive.
- the engaging claws 32 of the upper case 34 are arranged at the positions shown in FIG. 4 (a) . In this state, the engaging claw
- the engaging claw 32 has not yet been inserted into the engaging groove 37 and is not in contact with other members.
- the engaging claw 32 is moved toward the engaging groove 37 (in the Y direction in the drawing), and the inclined sliding surface 31 of the engaging claw 32 is engaged. Contact the upper surface 38 (corner) of the groove 37.
- the engagement claw 32 moves downward according to the inclination of the sliding surface 31. As the engaging claw 32 moves downward, the gap between the pressing surface 33 and the receiving surface 39 gradually decreases.
- the engagement claw 32 is finally inserted into the engagement groove 37 to the position shown in FIG. Since the sliding surface 31 of the engaging claw 32 inserted into the engaging groove 37 to the final position is in contact with the upper surface 38, the engaging claw 32 does not rattle in the engaging groove 37. Further, the sealing portion 23 is securely sandwiched between the pressing surface 33 and the receiving surface 39.
- the gap between the engagement claw 32 and the engagement groove 37 (specifically, the pressing surface)
- the gap between 33 and the receiving surface 39 is gradually reduced. Therefore, the sealing portion 23 is securely sandwiched between the pressing surface 33 and the receiving surface 39. As a result, for example, the problem that the electrolytic solution sealed in the packaging bag 24 leaks from the sealing portion 23 is less likely to occur.
- the sealing portions 23 having various thicknesses can be securely held. Therefore, even if the thickness of the sealing portion 23 varies, the sealing portion 23 is securely sandwiched between the pressing surface 33 and the receiving surface 39.
- the present invention is not limited to the above embodiment.
- the configuration shown in FIG. 5 is also included in the present invention.
- the lower case 35A shown in FIG. 5 is provided with an engagement groove 37 having an upper surface 38A inclined so as to be parallel to the sliding surface 31 of the engagement claw 32. According to such a configuration, when the engaging claw 32 is inserted into the engaging groove 37, the sliding claw 31 and the upper surface 38A slide while contacting each other, so that the engaging claw 32 is improved. Guided.
- FIGS. 6 (a) and 6 (b) Another embodiment of the cased film-covered electrical device of the present invention is shown in FIGS. 6 (a) and 6 (b).
- FIG. 6A is an enlarged view of the engaging claw 32 provided in the upper case 34 of the present embodiment and the vicinity thereof.
- FIG. 6 (b) shows a modification of the engaging claw 32 shown in FIG. 6 (a).
- An urging member 40 that urges the engaging claw 32 in a direction to move it into the engaging groove 37 is disposed behind the engaging claw 32 shown in FIG. 6 (a).
- the urging member 40 shown in the figure is a coil bar. And is disposed between the engaging claw 32 and the rib 36 in a compressed state.
- the compressed coil panel 40 urges the engaging claw 32 in the arrow Y direction by an elastic restoring force.
- the biased engagement claw 32 is rotationally displaced in the direction of the arrow about the corner 34a. Based on the above principle, the engaging claw 32 is pushed into the engaging groove 37, and the sealing portion 23 is securely clamped.
- the urging member 40 is not limited to a specific member as long as the urging force as described above can be applied to the engaging claws 32.
- the biasing member 40 may be an elastic body such as rubber or sponge.
- the elastic body serving as the urging member 40 is disposed between the inner surface of the cell case 30 and the film-clad battery 20 (preferably disposed in a compressed state), the film in the cell case 30 It is also possible to suppress backlash of the outer battery 20.
- the engagement claw 32A shown in FIG. 6 (b) is an independent member of the upper case 34, and is slidable with respect to the upper side member of the upper case 34.
- the engaging claw 32A urged by the urging member 40 moves in the arrow Y direction and engages in the engaging groove 37.
- the film-clad battery 20 is not limited to the lithium ion secondary battery.
- the film external battery 20 may be a nickel metal hydride battery, a nickel-powered battery, a lithium metal primary battery, a lithium metal secondary battery, or a lithium polymer battery.
- the “film-covered electrical device” is not limited to a device that functions as a battery, and may be a device that functions as a capacitor, for example.
- the element accommodated in the packaging bag 24 may be an element that functions as a battery or an element that functions as a capacitor.
- the present invention is effective for all cased film exterior electrical devices having a structure in which the sealing portion of the outer bag film that packages the electrical device is sandwiched between the upper case and the lower case.
- the engaging claw 32 is provided in the upper case 34, and the engaging groove 37 is formed in the lower case 35.
- the engaging claw 32 can be provided in the lower case 35 and the engaging groove 37 can be formed in the upper case 34.
- the upper case 34 and the lower case 35 have shapes that can surround the upper and lower surfaces of the film-clad battery 20.
- the shape of the upper case 34 and the lower case 35 may be a frame shape.
- the configurations described in the above embodiments can be combined as appropriate.
- an assembled battery for example, used as a power source for driving an electric vehicle
- Electric device assembly can also be configured
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
A power generation element comprises a film-covered electric device enclosed in a packaging bag, a cell case having a first case body and a second case body capable of holding a sealing part formed along the outer peripheral part of the packaging bag, an engagement claw formed on the first case body, and an engagement groove formed in the second case body and in which the engagement claw is inserted. At least a part of the sealing part of the packaging bag is held in a clearance between the engagement groove and the engagement claw inserted into the engagement groove. The clearance is gradually reduced as the engagement claw is inserted into the engagement groove.
Description
ケース入りフィルム外装電気デバイス Cased film exterior electrical device
技術分野 Technical field
[0001] 本発明は、例えばリチウムイオン二次電池などのフィルム外装電気デバイスがケー ス内に収容されたケース入りフィルム外装電気デバイスに関する。 TECHNICAL FIELD [0001] The present invention relates to a cased film-clad electrical device in which a film-clad electrical device such as a lithium ion secondary battery is accommodated in a case.
背景技術 Background art
[0002] 従来、薄型電池の一種として、ラミネートフィルム等力 なる包装袋内に発電要素と 電解液とが収容されたフィルム外装電池が知られて ヽる。従来のフィルム外装電池に ついて、図 7を参照して説明する。 [0002] Conventionally, as a type of thin battery, a film-covered battery in which a power generation element and an electrolytic solution are housed in a packaging bag having a laminated film or the like is known. A conventional film-clad battery will be described with reference to FIG.
[0003] 図 7に示すフィルム外装電池 120は、ラミネートフィルム力もなる包装袋 124と、包装 袋 124内に収容された発電要素 (不図示)とを有する。図示されているフィルム外装 電池 120の厚みは、数 mm〜十数 mmである。包装袋 124の外周部には、ラミネート フィルム同士が貼り合わされた封止部 123が形成されている。また、電圧取出し用の 電極タブ 125a、 125bが封止部 123から引き出されている。 A film-clad battery 120 shown in FIG. 7 includes a packaging bag 124 that also has a laminate film force, and a power generation element (not shown) housed in the packaging bag 124. The thickness of the illustrated film-clad battery 120 is several mm to several tens of mm. On the outer peripheral portion of the packaging bag 124, a sealing portion 123 in which laminated films are bonded together is formed. In addition, voltage extraction electrode tabs 125 a and 125 b are drawn out from the sealing portion 123.
[0004] 上記フィルム外装電池 120の使用に際しては、フィルム外装電池 120を収容するセ ルケース 130が利用されることが多い(例えば、特開 2005— 122927号公報参照)。 セルケースを利用するのは、フィルム外装電池 120の取り扱いの利便性を向上させ たり、フィルムに傷が付くのを防止したりするためである。 [0004] When the film-clad battery 120 is used, a cell case 130 that houses the film-clad battery 120 is often used (see, for example, JP-A-2005-122927). The reason for using the cell case is to improve the convenience of handling the film-clad battery 120 and to prevent the film from being damaged.
[0005] セルケース 130の外形は特に限定されない。し力し、一般的なセルケース 130は、 図示されているようなアッパーケース 134とロアケース 135と力も構成されている。アツ パーケース 134とロアケース 135は、いずれも枠状の外周部を有している。アッパー ケース 134とロアケース 135の対向する外周部は、その間に、フィルム外装電池 120 の封止部 123を挟むことによって、フィルム外装電池をセルケース 130内で保持する 発明の開示 [0005] The outer shape of the cell case 130 is not particularly limited. However, the general cell case 130 is also configured with the upper case 134 and the lower case 135 as shown in the figure. Each of the upper case 134 and the lower case 135 has a frame-shaped outer periphery. Disclosure of the Invention The film case battery is held in the cell case 130 by sandwiching the sealing part 123 of the film case battery 120 between the opposing outer peripheral parts of the upper case 134 and the lower case 135
発明が解決しょうとする課題 Problems to be solved by the invention
[0006] アッパーケース 134とロアケース 135とから構成されるセルケース 130を用いる場合
には、これらアッパーケース 134とロアケース 135とを固定する必要がある。アッパー ケース 134とロアケース 135は、例えば、接着剤やビス等の固定手段によって固定さ れる。また、アッパーケース 134及びロアケース 135の一方に設けられた係合爪を他 方に設けられた係合溝に係合させることによって、アッパーケース 134とロアケース 1 35とが固定されることもある。係合爪と係合溝による固定構造について、図 7、図 8を 参照して説明する。図 8は、図 7に示されている係合爪およびその周辺構造を示す縦 断面図である。 [0006] When using a cell case 130 composed of an upper case 134 and a lower case 135 Therefore, it is necessary to fix the upper case 134 and the lower case 135 to each other. The upper case 134 and the lower case 135 are fixed by a fixing means such as an adhesive or a screw. Further, the upper case 134 and the lower case 135 may be fixed by engaging an engaging claw provided on one of the upper case 134 and the lower case 135 with an engaging groove provided on the other. The fixing structure with the engaging claw and the engaging groove will be described with reference to FIGS. FIG. 8 is a longitudinal sectional view showing the engaging claw and its peripheral structure shown in FIG.
[0007] 図 7に示すように、アッパーケース 134の外周部には 2つの係合爪 132が設けられ ている。この係合爪 132は、図 8に示すように、ロアケース 135に設けられている係合 溝 137内に挿入され、係合溝 137と係合する。フィルム外装電池 120の封止部 123 は、係合爪 132の下面 133と係合溝 137の一部(受け面 139)との間に挟み込まれる As shown in FIG. 7, two engaging claws 132 are provided on the outer peripheral portion of the upper case 134. As shown in FIG. 8, the engaging claw 132 is inserted into the engaging groove 137 provided in the lower case 135 and engages with the engaging groove 137. The sealing portion 123 of the film-clad battery 120 is sandwiched between the lower surface 133 of the engaging claw 132 and a part of the engaging groove 137 (receiving surface 139).
[0008] し力しながら、図 8に示す構成では、係合爪 132を図示矢印方向(挿入方向)に移 動させて最終位置に位置させたとしても、係合爪 132と係合溝 137との間に高さ (d) の隙間がある。従って、封止部 123が係合爪 132の下面 133と係合溝 137の受け面 139との間にしつかりと挟持されないことがあった。また、高さ(d)の隙間が存在する ために、ロアケース 135に対してアッパーケース 134ががたついてしまうことがあった [0008] In the configuration shown in FIG. 8, even if the engaging claw 132 is moved in the direction indicated by the arrow (insertion direction) and positioned at the final position, the engaging claw 132 and the engaging groove 137 are applied. There is a gap of height (d) between and. Therefore, the sealing portion 123 may not be held between the lower surface 133 of the engaging claw 132 and the receiving surface 139 of the engaging groove 137. In addition, since there is a gap of height (d), the upper case 134 may rattle against the lower case 135.
[0009] 以上、電池を例に挙げ、本発明が解決しょうとする課題について説明した。しかし、 上記問題は電池に限らず、キャパシタ等として構成されたフィルム外装電気デバイス についても生じ得る共通の問題である。 [0009] The problem to be solved by the present invention has been described above by taking a battery as an example. However, the above problem is a common problem that can occur not only for batteries but also for film-covered electrical devices configured as capacitors or the like.
[0010] 本発明の目的は、上記問題点を解決することである。具体的には、本発明の目的 は、フィルム外装電気デバイスの封止部をガタツキなく安定して保持することが可能 な一対のケース体を備えたケース入りフィルム外装電気デバイスを提供することであ る。 An object of the present invention is to solve the above problems. Specifically, an object of the present invention is to provide a cased film-covered electrical device provided with a pair of case bodies capable of stably holding the sealing portion of the film-wrapped electrical device without rattling. The
課題を解決するための手段 Means for solving the problem
[0011] 本発明のケース入りフィルム外装電気デバイスは、電気的エネルギーを貯留および 出力する発電要素が可撓性フィルムからなる包装袋内に封入されたフィルム外装電
気デバイスと、前記包装袋の外周部に形成された封止部を挟持可能な第 1のケース 体と第 2のケース体とを有するセルケースと、前記第 1のケース体に形成された係合 爪と、前記第 2のケース体に形成され、前記係合爪が挿入される係合溝と、を有する 。前記包装袋の前記封止部の少なくとも一部は、前記係合溝と、該係合溝に挿入さ れた前記係合爪との間の隙間に挟まれる。前記隙間は、前記係合爪が前記係合溝 内に挿入されるに連れて徐々に狭まる。 [0011] The cased film-clad electrical device of the present invention is a film-clad electrical device in which a power generation element that stores and outputs electrical energy is enclosed in a packaging bag made of a flexible film. An air device, a cell case having a first case body and a second case body capable of sandwiching a sealing portion formed on an outer peripheral portion of the packaging bag, and an engagement formed on the first case body And an engaging groove formed in the second case body and into which the engaging claw is inserted. At least a part of the sealing portion of the packaging bag is sandwiched between a gap between the engagement groove and the engagement claw inserted into the engagement groove. The gap gradually narrows as the engagement pawl is inserted into the engagement groove.
[0012] 本発明によれば、包装袋の封止部が挟まれた係合爪と係合溝との間の隙間が徐々 に狭まるので、封止部が確実に挟持される。また、封止部の厚みがばらついたとして も、封止部は確実に挟持される。 [0012] According to the present invention, since the gap between the engaging claw and the engaging groove between which the sealing portion of the packaging bag is sandwiched is gradually narrowed, the sealing portion is securely sandwiched. Moreover, even if the thickness of the sealing portion varies, the sealing portion is securely held.
[0013] 前記係合爪は、くさび形にすることができる。また、前記係合爪に、前記隙間が狭ま る方向に前記係合爪を移動させるための傾斜した摺動面を形成し、前記係合溝に、 前記摺動面と平行な他の摺動面を形成することが好ましい。 [0013] The engagement claw may be wedge-shaped. In addition, an inclined sliding surface for moving the engaging claw in a direction in which the gap is narrowed is formed in the engaging claw, and another sliding parallel to the sliding surface is formed in the engaging groove. It is preferable to form a moving surface.
[0014] 前記第 1のケース体には、前記係合爪を前記係合溝内に挿入する付勢力を前記 係合爪に付与する付勢部材を設けることができる。 [0014] The first case body can be provided with a biasing member that applies a biasing force for inserting the engagement claw into the engagement groove.
[0015] 前記係合溝への前記係合爪の挿入方向は、前記第 1のケース体と第 2のケース体 の積層方向に対して直交する方向であることが好まし 、。 [0015] The insertion direction of the engagement claw into the engagement groove is preferably a direction orthogonal to the stacking direction of the first case body and the second case body.
図面の簡単な説明 Brief Description of Drawings
[0016] [図 1]第 1の実施形態のケース入りフィルム外装電気デバイスを示す分解斜視図であ る。 FIG. 1 is an exploded perspective view showing a cased film-wrapped electric device according to the first embodiment.
[図 2]図 1のセルケースの係合部周辺の拡大斜視図である。 2 is an enlarged perspective view around the engaging portion of the cell case of FIG. 1.
[図 3]分解されたアッパーケースとロアケース斜視図である。 FIG. 3 is an exploded perspective view of the upper case and the lower case.
[図 4]係合爪を係合溝に係合させるプロセスを示す工程図である。 FIG. 4 is a process diagram showing a process of engaging an engaging claw with an engaging groove.
[図 5]係合部の他の例を示す縦断面図である。 FIG. 5 is a longitudinal sectional view showing another example of the engaging portion.
[図 6]第 2の実施形態のアッパーケースを示す部分拡大図である。 FIG. 6 is a partially enlarged view showing the upper case of the second embodiment.
[図 7]従来のセルケースを示す分解斜視図である。 FIG. 7 is an exploded perspective view showing a conventional cell case.
[図 8]図 7のセルケースの係合爪と係合溝との係合状態を示す縦断面図である。 発明を実施するための最良の形態 8 is a longitudinal sectional view showing an engagement state between an engagement claw and an engagement groove of the cell case of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
[0017] (第 1の実施形態)
図 1は、本実施形態のケース入りフィルム外装電気デバイスを示す分解斜視図であ る。図 2は、図 1のセルケースの係合部周辺を拡大して示す斜視図である。図 3は、分 解されたアッパーケースとロアケースを示す斜視図である。 [0017] (First embodiment) FIG. 1 is an exploded perspective view showing a cased film-covered electrical device of the present embodiment. FIG. 2 is an enlarged perspective view showing the periphery of the engaging portion of the cell case of FIG. FIG. 3 is a perspective view showing the disassembled upper case and lower case.
[0018] 図 1〜図 3に示す本実施形態のケース入りフィルム外装電気デバイス 50の基本的 構造は、従来のケース入りフィルム外装電気デバイスの基本的構造と同一である。例 えば、電気デバイス 50は、電極タブ 25a、 25bを介して、電気的エネルギーを貯留ぉ よび出力するフィルム外装電池 20と、該フィルム外装電池 20を収容するためのセル ケース 30とを有している。但し、セルケース 30に設けられている係合爪の形状力 図 7、図 8に示されている従来のセルケースに設けられている係合爪の形状と異なる 本実施形態のフィルム外装電池 20は、 3. 6Vを出力する薄型のリチウムイオン二次 電池である。具体的には、可撓性を有する外装フィルム力もなる包装袋 24内に、発 電要素 22 (図 2参照)と電解液とが収容された電池である。包装袋 24は、上下 2枚の フィルムが貼り合わされた構造を有し、包装袋 24の外周部にはフィルム同士が熱シ ールされた封止部 23が全周にわたつて形成されて 、る。包装袋 24は長方形の外形 を有しており、 2つの短辺から、正極用の電極タブ 25aと負極用の電極タブ 25bとが 引き出されている。もっとも、フィルム外装電池は、上記構造や形状に限定されない。 フィルム外装電池には、一般的なフィルム外装電池の全てが含まれる。 The basic structure of the cased film-wrapped electrical device 50 of the present embodiment shown in FIGS. 1 to 3 is the same as the basic structure of a conventional cased film-wrapped electrical device. For example, the electric device 50 includes a film-clad battery 20 that stores and outputs electrical energy via the electrode tabs 25a and 25b, and a cell case 30 that accommodates the film-clad battery 20. Yes. However, the shape force of the engaging claw provided in the cell case 30 is different from the shape of the engaging claw provided in the conventional cell case shown in FIGS. 7 and 8. Is a thin lithium-ion secondary battery that outputs 3.6V. Specifically, it is a battery in which a power generating element 22 (see FIG. 2) and an electrolytic solution are accommodated in a packaging bag 24 that also has a flexible exterior film force. The packaging bag 24 has a structure in which two upper and lower films are bonded together, and a sealing portion 23 in which the films are heat-sealed is formed on the outer periphery of the packaging bag 24 over the entire circumference. The The packaging bag 24 has a rectangular outer shape, and a positive electrode tab 25a and a negative electrode tab 25b are drawn out from two short sides. But a film-clad battery is not limited to the said structure and shape. The film-clad battery includes all common film-clad batteries.
[0019] セルケース 30は、榭脂材料によって形成されたアッパーケース(第 1のケース体) 3 4とロアケース(第 2のケース体) 35とを有し、これら一対のケース体によって、フィルム 外装電池 20の封止部 23を挟持する。本実施形態のアッパーケース 34及びロアケー ス 35の外周部は枠状に形成されており、この枠状部分が封止部 23の全周を挟持す る。 The cell case 30 has an upper case (first case body) 3 4 and a lower case (second case body) 35 formed of a resin material, and a film exterior is formed by the pair of case bodies. The sealing part 23 of the battery 20 is clamped. The outer peripheral portions of the upper case 34 and the lower case 35 of the present embodiment are formed in a frame shape, and this frame-shaped portion sandwiches the entire periphery of the sealing portion 23.
[0020] 図 1に示すように、係合爪 32は、アッパーケース 34の下面側に形成されている。具 体的には、アッパーケース 34の各長辺部上に、 2つの係合爪 32が X方向に所定の 間隔をあけて設けられている。図 1では Y方向手前側の長辺部上に設けられた 2つの 係合爪 32のみが描かれている力 奥側の長辺部上にも、同様に 2つの係合爪 32が 形成されている。もっとも、図示されている構成はあくまで一例に過ぎず、本発明にお V、て係合爪 32が設けられる位置は種々変更可能である。
[0021] ロアケース 35には、上記係合爪 32を係合可能な係合溝 37が形成されている。係 合溝 37は、図 2、図 3に示すように図示 Y方向に掘り込まれており、係合溝 37の上面 38と受け面 39とは互い〖こ平行である。もっとも、係合溝 37の形状は、図示されている 形状に限定されるものではない。 As shown in FIG. 1, the engaging claw 32 is formed on the lower surface side of the upper case 34. Specifically, on each long side portion of the upper case 34, two engagement claws 32 are provided at a predetermined interval in the X direction. In FIG. 1, only the two engaging claws 32 provided on the long side portion on the front side in the Y direction are depicted. Similarly, two engaging claws 32 are formed on the long side portion on the far side. ing. However, the illustrated configuration is merely an example, and the position where the engagement claws 32 are provided in the present invention can be variously changed. The lower case 35 is formed with an engagement groove 37 that can engage with the engagement claw 32. The engagement groove 37 is dug in the Y direction as shown in FIGS. 2 and 3, and the upper surface 38 and the receiving surface 39 of the engagement groove 37 are parallel to each other. However, the shape of the engagement groove 37 is not limited to the illustrated shape.
[0022] 本実施形態の主たる特徴部は、図 2、図 3に示すように、係合爪 32の断面形状がく さび形となっていることである。すなわち、係合爪 32は、基本的には、 L字形の断面 形状を有する。しかし、係合溝 37に挿入される部分には摺動面 31が形成されている 。摺動面 31は、係合爪 32の水平な底面 (押圧面 33)に対して傾斜している。より具 体的には、摺動面 31は、係合爪 32の先端側ほど押圧面 33に接近するように傾斜し ている。すなわち、係止爪 32の係合溝 37に挿入される部分は、先細りの形状を有す る。 [0022] As shown in FIGS. 2 and 3, the main characteristic part of the present embodiment is that the cross-sectional shape of the engaging claw 32 is a wedge shape. That is, the engaging claw 32 basically has an L-shaped cross-sectional shape. However, the sliding surface 31 is formed in the portion inserted into the engaging groove 37. The sliding surface 31 is inclined with respect to the horizontal bottom surface (pressing surface 33) of the engaging claw 32. More specifically, the sliding surface 31 is inclined so as to approach the pressing surface 33 toward the distal end side of the engaging claw 32. That is, the portion inserted into the engaging groove 37 of the locking claw 32 has a tapered shape.
[0023] 図 2は、本実施形態のケース入りフィルム外装電気デバイス 50の完成状態を示して いる。図示されているように、完成状態では、係合爪 32が係合溝 37に係合し、アツパ 一ケース 34側の押圧面 33とロアケース 35側の受け面 39との間にフィルム外装電池 20の封止部 23が挟持される。また、係合爪 32の先端側が係合溝 37内に入り込んで いるので、アッパーケース 34とロアケース 35とが上下方向(積層方向)に分離するこ とがない。 FIG. 2 shows a completed state of the cased film-wrapped electrical device 50 of the present embodiment. As shown in the drawing, in the completed state, the engaging claw 32 engages with the engaging groove 37, and the film-clad battery 20 between the pressing surface 33 on the upper case 34 side and the receiving surface 39 on the lower case 35 side. The sealing portion 23 is sandwiched. Further, since the distal end side of the engaging claw 32 enters the engaging groove 37, the upper case 34 and the lower case 35 are not separated in the vertical direction (stacking direction).
[0024] 封止部 23をより良好に挟持するためには、押圧面 33と受け面 39とが互いに平行 であることが好ましい。 [0024] In order to more favorably hold the sealing portion 23, it is preferable that the pressing surface 33 and the receiving surface 39 are parallel to each other.
[0025] 次に、上記構成を有するアッパーケース 34のロアケース 35への取付方法について 図 4を参照して説明する。もっとも、ここでは、係合爪 32を係合溝 37へ係合させるプ 口セスを中心に説明する。 Next, a method of attaching the upper case 34 having the above configuration to the lower case 35 will be described with reference to FIG. However, here, the process of engaging the engaging claw 32 with the engaging groove 37 will be mainly described.
[0026] まず、図 4 (a)に示すように、ロアケース 35上にフィルム外装電池 20を配置する。こ の状態では、封止部 23は係合溝 37に受け面 39上に位置している。フィルム外装電 池 20をロアケース 35上に配置する際には、接着剤を用いてフィルム外装電池 20と口 ァケース 35とを固定 (仮止め)してもよい。フィルム外装電池 20が配置された後、アツ パーケース 34の係合爪 32を図 4 (a)に示す位置に配置する。この状態では、係合爪First, as shown in FIG. 4 (a), the film-clad battery 20 is disposed on the lower case 35. In this state, the sealing portion 23 is positioned on the receiving surface 39 in the engaging groove 37. When the film-clad battery 20 is placed on the lower case 35, the film-clad battery 20 and the case 35 may be fixed (temporarily fixed) using an adhesive. After the film-clad battery 20 is arranged, the engaging claws 32 of the upper case 34 are arranged at the positions shown in FIG. 4 (a) . In this state, the engaging claw
32は未だ係合溝 37内には挿入されておらず、他の部材に接触していない。
[0027] 次いで、図 4 (b)に示すように、係合爪 32を係合溝 37内に向けて(図示 Y方向に) 移動させ、係合爪 32の傾斜した摺動面 31を係合溝 37の上面 38 (角部)に当接させ る。ここから、係合爪 32を更に移動させると、係合爪 32は、摺動面 31の傾斜に応じ て、下方に移動する。係合爪 32の下方への移動に伴って、押圧面 33と受け面 39と の間の隙間が徐々に狭まる。 32 has not yet been inserted into the engaging groove 37 and is not in contact with other members. Next, as shown in FIG. 4B, the engaging claw 32 is moved toward the engaging groove 37 (in the Y direction in the drawing), and the inclined sliding surface 31 of the engaging claw 32 is engaged. Contact the upper surface 38 (corner) of the groove 37. When the engagement claw 32 is further moved from here, the engagement claw 32 moves downward according to the inclination of the sliding surface 31. As the engaging claw 32 moves downward, the gap between the pressing surface 33 and the receiving surface 39 gradually decreases.
[0028] 係合爪 32は、最終的には図 4 (c)に示す位置まで係合溝 37内に挿入される。最終 位置まで係合溝 37内に挿入された係合爪 32の摺動面 31は、上面 38と接触してい るので、係合爪 32が係合溝 37内でガタックことはない。また、押圧面 33と受け面 39 との間に封止部 23が確実に挟持される。 [0028] The engagement claw 32 is finally inserted into the engagement groove 37 to the position shown in FIG. Since the sliding surface 31 of the engaging claw 32 inserted into the engaging groove 37 to the final position is in contact with the upper surface 38, the engaging claw 32 does not rattle in the engaging groove 37. Further, the sealing portion 23 is securely sandwiched between the pressing surface 33 and the receiving surface 39.
[0029] 上述したように本実施形態では、係合爪 32が係合溝 37内に挿入されるにつれて、 係合爪 32と係合溝 37との間の隙間 (具体的には、押圧面 33と受け面 39との間の隙 間)が徐々に狭まる。従って、押圧面 33と受け面 39との間に封止部 23が確実に挟持 される。この結果、例えば、包装袋 24内に封入された電解液が封止部 23から漏れ出 すといった不具合も生じ難くなる。 [0029] As described above, in the present embodiment, as the engagement claw 32 is inserted into the engagement groove 37, the gap between the engagement claw 32 and the engagement groove 37 (specifically, the pressing surface) The gap between 33 and the receiving surface 39 is gradually reduced. Therefore, the sealing portion 23 is securely sandwiched between the pressing surface 33 and the receiving surface 39. As a result, for example, the problem that the electrolytic solution sealed in the packaging bag 24 leaks from the sealing portion 23 is less likely to occur.
[0030] また、押圧面 33と受け面 39との間の隙間が徐々に狭まるので、様々な厚みの封止 部 23を確実に挟持することができる。従って、仮に封止部 23の厚みがばらついてい たとしても、封止部 23は、押圧面 33と受け面 39との間に確実に挟持される。 [0030] In addition, since the gap between the pressing surface 33 and the receiving surface 39 is gradually narrowed, the sealing portions 23 having various thicknesses can be securely held. Therefore, even if the thickness of the sealing portion 23 varies, the sealing portion 23 is securely sandwiched between the pressing surface 33 and the receiving surface 39.
[0031] なお、本発明は上記実施形態に限られるものではない。例えば、図 5に示すような 構成も本発明に含まれる。図 5に示すロアケース 35Aには、係合爪 32の摺動面 31と 平行になるように傾斜した上面 38Aを有する係合溝 37が設けられて 、る。このような 構成によれば、係合爪 32を係合溝 37内に挿入する際、摺動面 31と上面 38Aとが面 接触しながら摺動し合うため、係合爪 32がより良好に案内される。 [0031] The present invention is not limited to the above embodiment. For example, the configuration shown in FIG. 5 is also included in the present invention. The lower case 35A shown in FIG. 5 is provided with an engagement groove 37 having an upper surface 38A inclined so as to be parallel to the sliding surface 31 of the engagement claw 32. According to such a configuration, when the engaging claw 32 is inserted into the engaging groove 37, the sliding claw 31 and the upper surface 38A slide while contacting each other, so that the engaging claw 32 is improved. Guided.
[0032] (第 2の実施形態) [0032] (Second Embodiment)
本発明のケース入りフィルム外装電気デバイスの他の実施形態を図 6 (a)、 (b)に 示す。図 6 (a)は、本実施形態のアッパーケース 34が備える係合爪 32及びその周辺 の拡大図である。図 6 (b)は、図 6 (a)に示す係合爪 32の変形例を示す。 Another embodiment of the cased film-covered electrical device of the present invention is shown in FIGS. 6 (a) and 6 (b). FIG. 6A is an enlarged view of the engaging claw 32 provided in the upper case 34 of the present embodiment and the vicinity thereof. FIG. 6 (b) shows a modification of the engaging claw 32 shown in FIG. 6 (a).
[0033] 図 6 (a)に示す係合爪 32の背後には、係合爪 32を係合溝 37内に移動させる方向 へ付勢する付勢部材 40が配置されて ヽる。図示されて ヽる付勢部材 40はコイルバ
ネであって、圧縮された状態で係合爪 32とリブ 36との間に配置されている。圧縮され たコイルパネ 40は、弾性復元力によって係合爪 32を矢印 Y方向に付勢する。付勢さ れた係合爪 32は、角部 34aを中心として矢印方向に回転変位する。以上の原理によ つて、係合爪 32が係合溝 37に押し込まれ、封止部 23が確実に挟持される。 An urging member 40 that urges the engaging claw 32 in a direction to move it into the engaging groove 37 is disposed behind the engaging claw 32 shown in FIG. 6 (a). The urging member 40 shown in the figure is a coil bar. And is disposed between the engaging claw 32 and the rib 36 in a compressed state. The compressed coil panel 40 urges the engaging claw 32 in the arrow Y direction by an elastic restoring force. The biased engagement claw 32 is rotationally displaced in the direction of the arrow about the corner 34a. Based on the above principle, the engaging claw 32 is pushed into the engaging groove 37, and the sealing portion 23 is securely clamped.
[0034] 付勢部材 40は、上述のような付勢力を係合爪 32に付与可能であれば特定の部材 に限定されない。例えば、付勢部材 40は、ゴムやスポンジといった弾性体であっても ょ 、。付勢部材 40としての弾性体がセルケース 30の内面とフィルム外装電池 20との 間に配置されて ヽる場合 (好ましくは圧縮状態で配置されて ヽる場合)、セルケース 3 0内におけるフィルム外装電池 20のガタツキを抑制することも可能である。 The urging member 40 is not limited to a specific member as long as the urging force as described above can be applied to the engaging claws 32. For example, the biasing member 40 may be an elastic body such as rubber or sponge. When the elastic body serving as the urging member 40 is disposed between the inner surface of the cell case 30 and the film-clad battery 20 (preferably disposed in a compressed state), the film in the cell case 30 It is also possible to suppress backlash of the outer battery 20.
[0035] 図 6 (b)に示す係合爪 32Aは、アッパーケース 34力 独立した部材であって、アツ パーケース 34の上部側部材に対してスライド可能である。付勢部材 40によって付勢 された係合爪 32Aは、矢印 Y方向に移動し、係合溝 37内に係合する。 The engagement claw 32A shown in FIG. 6 (b) is an independent member of the upper case 34, and is slidable with respect to the upper side member of the upper case 34. The engaging claw 32A urged by the urging member 40 moves in the arrow Y direction and engages in the engaging groove 37.
[0036] フィルム外装電池 20は、上記リチウムイオン二次電池に限定されない。フィルム外 装電池 20は、ニッケル水素電池、ニッケル力ドニゥム電池、リチウムメタル一次電池、 リチウムメタル二次電池、またはリチウムポリマー電池などであってもよい。更には、「 フィルム外装電気デバイス」は、電池として機能するデバイスに限られず、例えばコン デンサとして機能するデバイスであってもよい。換言すれば、包装袋 24内に収容され る要素は、電池として機能する要素であっても、コンデンサとして機能する要素であつ てもよい。要するに、電気デバイスを包装している外袋フィルムの封止部がアッパー ケースとロアケースとの間に挟持される構造を有するケース入りフィルム外装電気デ バイスの全てに対して本発明は有効である。 [0036] The film-clad battery 20 is not limited to the lithium ion secondary battery. The film external battery 20 may be a nickel metal hydride battery, a nickel-powered battery, a lithium metal primary battery, a lithium metal secondary battery, or a lithium polymer battery. Furthermore, the “film-covered electrical device” is not limited to a device that functions as a battery, and may be a device that functions as a capacitor, for example. In other words, the element accommodated in the packaging bag 24 may be an element that functions as a battery or an element that functions as a capacitor. In short, the present invention is effective for all cased film exterior electrical devices having a structure in which the sealing portion of the outer bag film that packages the electrical device is sandwiched between the upper case and the lower case.
[0037] また、上記実施形態では、アッパーケース 34に係合爪 32が設けられ、ロアケース 3 5に係合溝 37が形成されていた。しかし、例えばロアケース 35に係合爪 32を設け、 アッパーケース 34に係合溝 37を形成することもできる。また、上記実施形態では、ァ ッパーケース 34、ロアケース 35が、フィルム外装電池 20の上下面を包囲可能な形状 を有する。し力し、アッパーケース 34、ロアケース 35の形状は、枠状であってもよい。 また、当然ながら、上記各実施形態で説明した構成を適宜組み合わせることもできる
また上記実施形態に説明したフィルム外装電池 20を複数個集合させると共に、そ れらを互いに直列および Zまたは並列に電気的接続することで、例えば電気自動車 の駆動用電源として利用される組電池 (電気デバイス集合体)を構成することもできる
In the above embodiment, the engaging claw 32 is provided in the upper case 34, and the engaging groove 37 is formed in the lower case 35. However, for example, the engaging claw 32 can be provided in the lower case 35 and the engaging groove 37 can be formed in the upper case 34. Further, in the above embodiment, the upper case 34 and the lower case 35 have shapes that can surround the upper and lower surfaces of the film-clad battery 20. However, the shape of the upper case 34 and the lower case 35 may be a frame shape. Of course, the configurations described in the above embodiments can be combined as appropriate. In addition, by assembling a plurality of film-clad batteries 20 described in the above embodiment and electrically connecting them in series and Z or in parallel, an assembled battery (for example, used as a power source for driving an electric vehicle) (Electric device assembly) can also be configured
Claims
[1] 電気的エネルギーを貯留および出力する発電要素が可撓性フィルム力 なる包装 袋内に封入されたフィルム外装電気デバイスと、 [1] A packaging element in which a power generation element that stores and outputs electrical energy has a flexible film force.
前記包装袋の外周部に形成された封止部を挟持可能な第 1のケース体と第 2のケ ース体とを有するセルケースと、 A cell case having a first case body and a second case body capable of sandwiching a sealing portion formed on an outer peripheral portion of the packaging bag;
前記第 1のケース体に形成された係合爪と、 An engaging claw formed on the first case body;
前記第 2のケース体に形成され、前記係合爪が挿入される係合溝と、を有し、 前記係合爪と前記係合溝との間の隙間に、前記封止部の一部が挟持され、前記隙 間は、前記係合爪が前記係合溝内に挿入されるに連れて徐々に狭まることを特徴と するケース入りフィルム外装電気デバイス。 An engagement groove formed in the second case body and into which the engagement claw is inserted, and a part of the sealing portion in a gap between the engagement claw and the engagement groove The film-covered electric device with a case is characterized in that the gap is gradually narrowed as the engaging claw is inserted into the engaging groove.
[2] 前記係合爪がくさび形であることを特徴とする請求項 1に記載のケース入りフィルム 外装電気デバイス。 [2] The case-encased film-covered electrical device according to [1], wherein the engaging claws are wedge-shaped.
[3] 前記係合爪には、前記隙間が狭まる方向に前記係合爪を移動させるための傾斜し た摺動面が形成され、前記係合溝には、前記摺動面と平行な他の摺動面が形成さ れていることを特徴とする請求項 1又は請求項 2に記載のケース入りフィルム外装電 気デバイス。 [3] The engaging claw is formed with an inclined sliding surface for moving the engaging claw in a direction in which the gap is narrowed, and the engaging groove has other parallel to the sliding surface. 3. The cased film-clad electrical device according to claim 1 or 2, wherein a sliding surface is formed.
[4] 前記第 1のケース体に、前記係合爪を前記係合溝内に挿入する付勢力を前記係 合爪に付与する付勢部材が設けられていることを特徴とする請求項 1乃至請求項 3 のいずれ力 1項に記載のケース入りフィルム外装電気デバイス。 [4] The urging member for applying an urging force for inserting the engaging claw into the engaging groove to the engaging claw is provided on the first case body. The film-covered electrical device containing a case according to any one of claims 1 to 4.
[5] 前記係合溝への前記係合爪の挿入方向が、前記第 1のケース体と第 2のケース体 の積層方向に対して直交する方向であることを特徴とする請求項 1乃至請求項 4のい ずれ力 1項に記載のケース入りフィルム外装電気デバイス。 [5] The insertion direction of the engagement claw into the engagement groove is a direction orthogonal to the stacking direction of the first case body and the second case body. 5. The case-wrapped film-clad electrical device according to claim 4, wherein:
[6] 請求項 1乃至請求項 5のいずれか 1項に記載のケース入りフィルム外装電気デバィ スを 2以上有し、それらケース入りフィルム外装電気デバイス同士が直列および Zま たは並列に電気的接続されている電気デバイス集合体。
[6] It has two or more cased film-clad electrical devices according to any one of claims 1 to 5, and the cased film-clad electrical devices are electrically connected in series and Z or in parallel. A collection of connected electrical devices.
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JP2007551021A JP4870092B2 (en) | 2005-12-21 | 2006-11-29 | Cased film exterior electrical device |
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EP3637449A4 (en) * | 2017-07-21 | 2020-08-26 | CRRC Qingdao Sifang Rolling Stock Research Institute Co., Ltd. | Encapsulated flexibly packaged capacitor module and system |
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EP3637449A4 (en) * | 2017-07-21 | 2020-08-26 | CRRC Qingdao Sifang Rolling Stock Research Institute Co., Ltd. | Encapsulated flexibly packaged capacitor module and system |
JP2022107503A (en) * | 2021-01-08 | 2022-07-21 | 株式会社ティーアールシィー高田 | Secondary battery unit, jump starter, and secondary battery device |
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JP4870092B2 (en) | 2012-02-08 |
JPWO2007072660A1 (en) | 2009-05-28 |
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