CN113544898B - Battery cooling device for vehicle - Google Patents
Battery cooling device for vehicle Download PDFInfo
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- CN113544898B CN113544898B CN202080019689.6A CN202080019689A CN113544898B CN 113544898 B CN113544898 B CN 113544898B CN 202080019689 A CN202080019689 A CN 202080019689A CN 113544898 B CN113544898 B CN 113544898B
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- flow path
- holes
- path forming
- forming member
- fluid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Provided is a battery cooling device for a vehicle, which is easy to assemble and can be positioned easily. A battery cooling device (20; 20A; 20B) for a vehicle is provided with: a plate-like plate member (21) in which a plurality of holes (21 ax,21 ay) are formed; a first channel forming member (30) which is substantially U-shaped and is disposed on the first surface (21 b) so that the first surface-side channel (R1) communicates with the holes (21 ax,21 ay); second channel forming members (40 x,40 y) which are substantially U-shaped and are disposed on the second surface (21 c) so that the second surface side channels (R2) communicate with the holes (21 ax,21 ay).
Description
Technical Field
The present invention relates to a vehicle battery cooling device that cools a battery mounted on a vehicle.
Background
A so-called hybrid vehicle having an internal combustion engine and a motor is equipped with a battery for operating the motor. The battery is operated during running of the vehicle, and therefore, generates heat. Therefore, the battery cooling device for a vehicle for cooling the battery is disposed so as to be thermally coupled to the battery. As a prior art related to a battery cooling device for a vehicle, there is a technology disclosed in patent document 1.
The battery cooling device for a vehicle disclosed in patent document 1 includes a cooling member formed by overlapping two plates each having a concave-convex portion formed thereon. The cooling member having the irregularities formed therein serves as a flow path for a cooling medium, and the cooling medium is caused to flow through the flow path to cool the battery by heat exchange with the cooling medium.
Prior art literature
Patent literature
Patent document 1: japanese patent application laid-open No. 2014-203535
Disclosure of Invention
Technical problem to be solved by the invention
The battery cooling device for a vehicle disclosed in patent document 1 is configured to weld, for example, two plates in a stacked manner. Here, in the hybrid vehicle and the electric vehicle, a long travel distance is required. Therefore, in order to increase the electric storage capacity, a large number of battery cells are disposed in the vehicle body. In addition, in order to cool the entire battery having a large number of battery cells, a plate constituting the battery cooling device for a vehicle is also enlarged. That is, the battery cooling device for a vehicle needs to cool the plate member having a large area. When the plates of a large area are overlapped, the plates may be distorted or deflected due to their own weight or the like. Therefore, it takes time to accurately align the positions of the large-area plates, and the time required for manufacturing the battery cooling device for a vehicle becomes long.
The present invention provides a battery cooling device for a vehicle, which is easy to assemble and is simple to position.
Technical scheme for solving technical problems
In the following description, reference numerals in the drawings are attached in parentheses for ease of understanding of the invention, but should not be construed as limiting the invention to the illustrated embodiments.
According to the present invention, there is provided a battery cooling device (20; 20A; 20B) for a vehicle, which is provided so as to be in contact with a battery (Ba) mounted on the vehicle, and which cools the battery (Ba) by a cooling medium flowing inside, the battery cooling device comprising:
a plate-like plate member (21) in which a plurality of holes (21 ax,21 ay) are formed;
a first flow path forming member (30) having a first space having a substantially U-shaped cross section, wherein a first surface side flow path (R1) of the cooling medium is formed by the first surface (21 b) of the plate member (21) and the first space;
a second flow path forming member (40 x,40 y) having a second space having a substantially U-shaped cross section, the second surface side flow path (R2) of the cooling medium being formed by a second surface (21 c) which is a back surface of the first surface (21 b) and the second space;
the holes (21 ax,21 ay) belong to any one of a plurality of holes (21 ax) to which a first hole group formed in the X direction on the surface of the plate member (21) belongs and a plurality of holes (21 ay) to which a second hole group formed in the Y direction on the surface of the plate member (21) belongs,
the first flow path forming member (30) is provided with a plurality of first surface side flow paths (R1) for communicating any one of the holes (21 ax) to which the first hole group belongs with any one of the holes (21 ay) to which the second hole group belongs,
the second flow path forming members (40 x,40 y) have one side second flow path forming member (40 x) communicating with the hole (21 ax) to which the first hole group belongs and the other side second flow path forming member (40 y) communicating with the hole (21 ay) to which the second hole group belongs.
Preferably, the X direction and the Y direction are parallel,
the number of holes (21 ax) to which the first hole group belongs is equal to the number of holes (21 ay) to which the second hole group belongs,
the holes (21 ax) to which the first hole group belongs are formed at equal intervals,
the holes (21 ay) to which the second hole group belongs are formed at equal intervals, respectively.
Preferably, the method further comprises: a fluid inflow portion (25) configured to face the second space of the one-side second flow path forming member (40 x) and into which the cooling medium flows; a fluid outflow portion (26) configured to face the second space of the second flow path forming member (40 y) on the other side and to allow the cooling medium to flow out;
the fluid inflow portion (25) and the fluid outflow portion (26) are arranged such that, when the length of the second surface side flow path (R2) is taken as a reference, the first flow path forming member (30) having the shortest flow path length from the fluid inflow portion (25) has the longest flow path length from the fluid outflow portion (26) and the first flow path forming member (30) having the longest flow path length from the fluid inflow portion (25) has the shortest flow path length from the fluid outflow portion (26).
Preferably, the fluid inflow portion (25) and the fluid outflow portion (26) are each formed by a hole formed in the plate member (21).
Preferably, an extension (50) is connected to the other-side second flow path forming member (40 y) so that the fluid outflow portion (26) is positioned adjacent to the fluid inflow portion (25).
Preferably, an extension (50) is connected to the one-side second channel forming member (40 x) so that the fluid inflow portion (25) is positioned adjacent to the fluid outflow portion (26).
ADVANTAGEOUS EFFECTS OF INVENTION
In the present invention, the battery cooling device for a vehicle is configured by overlapping the first flow path forming member and the second flow path forming member, each of which is formed in a substantially U shape, on the plate member having the hole formed therein. By overlapping the flow path members on the plate member, positioning of the members can be easily performed. A battery cooling device for a vehicle that is easy to position and assemble can be provided.
Drawings
Fig. 1 is a schematic view of a battery cooling system in which a battery cooling device for a vehicle of embodiment 1 is mounted.
Fig. 2 is an exploded perspective view of the battery cooling device for a vehicle shown in fig. 1.
Fig. 3 is a plan view of the battery cooling device for a vehicle shown in fig. 2.
Fig. 4 is a cross-sectional view taken along line 4-4 of fig. 3.
Fig. 5 is a sectional view taken along line 5-5 of fig. 3.
Fig. 6 is a diagram illustrating the operation of the battery cooling device for a vehicle shown in fig. 3.
Fig. 7 is a plan view of the battery cooling device for a vehicle of embodiment 2.
Fig. 8 is a plan view of the battery cooling device for a vehicle of embodiment 3.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. In the figure, fr denotes the front in the vehicle traveling direction, rr denotes the rear, le denotes the left, ri denotes the right, up denotes the upper, and Dn denotes the lower. The directions in the present specification are shown for convenience of description, and the installation posture of the battery cooling device of the present invention to the vehicle is not limited to the vehicle traveling directions shown in the drawings.
Example 1 >
Reference is made to fig. 1. Fig. 1 shows a battery cooling system 10 for cooling a vehicle battery Ba. A vehicle battery Ba for driving a motor is mounted in a hybrid vehicle, an electric vehicle, or the like. The vehicle battery Ba generates heat by operation, and therefore, it is necessary to cool it.
The battery cooling system 10 includes a vehicle battery cooling device 20 (hereinafter referred to as "cooling device 20"), and the vehicle battery cooling device 20 is disposed along a lower surface of the vehicle battery Ba and cools the vehicle battery Ba by a cooling medium flowing therein. The cooling medium uses, for example, water to which an antifreezing agent is added. The battery cooling system 10 further includes a fluid cooling unit 12 that cools a cooling medium whose temperature rises due to heat exchange with the vehicle battery Ba, and a pump 13 that circulates the cooling medium.
In the fluid cooling portion 12, a part of the refrigerant used in an air conditioning apparatus that air-conditions the interior of a vehicle, for example, flows in addition to the cooling medium. The cooling medium that has passed through the cooling device 20 and is heated is cooled by the refrigerant from the air conditioner in the fluid cooling portion 12.
The cooling device 20 may be disposed along an arbitrary surface such as an upper surface or a side surface, in addition to the lower surface of the vehicle battery Ba.
Reference is made to fig. 2 and 3. The cooling device 20 includes a plate-like plate member 21 having a plurality of circular holes 21ax and 21ay formed therein, a first flow path forming member 30 fixed to an upper surface 21b (first surface 21 b) of the plate member 21, second flow path forming members 40x and 40y fixed to a lower surface 21c (second surface 21 c) of the plate member 21, a fluid inflow portion 25 formed of holes formed in the plate member 21 and into which a low-temperature cooling medium flows, a fluid outflow portion 26 formed of holes formed in the plate member 21 and from which a high-temperature cooling medium flows out, an inflow portion connecting member 27 connected to the fluid inflow portion 25, and an outflow portion connecting member 28 connected to the fluid outflow portion 26.
The plate member 21 made of a metal plate has a substantially rectangular shape, and the portions 21d and 21e forming the fluid inflow portion 25 and the fluid outflow portion 26 protrude from the respective sides. In other words, only the portions necessary for inflow and outflow of the cooling medium are formed as the protruding portions 21d,21e so as to protrude from the substantially rectangular portions. The plate member 21 is provided with a plurality of holes 21ax,21ay which are covered with the first channel forming member 30 and the second channel forming members 40x,40y and through which the cooling medium can pass.
The plate member 21 is preferably made of a metal material capable of being welded. For example, an aluminum alloy, a copper alloy, a stainless steel alloy, or the like is used.
The plate member 21 including the holes 21ax,21ay, the fluid inflow portion 25, and the fluid outflow portion 26 can be formed by press forming and laser processing.
The holes 21ax,21ay are circular holes of the same diameter, respectively. The wells 21ax,21ay can be divided into two groups, a first well group and a second well group.
The holes 21ax to which the first hole group belongs are opened on a line Lx extending in the X direction on the surface of the plate member 21. In other words, the line Lx passes through the center (center of gravity) of the hole 21ax to which the first hole group belongs in plan view. The holes 21ax to which the first hole group belongs are opened at equal intervals so that the respective intervals are t 1.
The holes 21ay to which the second hole group belongs are opened on a line Ly extending in the Y direction on the surface of the plate member 21. In other words, the line Ly passes through the center (center of gravity) of the hole 21ay to which the second hole group belongs in plan view. The holes 21ay to which the second hole group belongs are opened at equal intervals so that the respective intervals are t2.
The line Lx extending in the X direction and the line Ly extending in the Y direction are parallel to each other and extend parallel to one side of the rectangular plate member 21. The interval t1 between the holes 21ax belonging to the first hole group and the interval t2 between the holes 21ay belonging to the second hole group are equal. That is, t1=t2.
The shape of the holes 21ax,21ay may be other than a circular shape, for example, a long hole shape. Also, the shape of each hole may be different from each other. Even in this case, it is preferable that the respective holes 21ax,21ay are formed such that the lines Lx, ly pass through the centers (gravity centers) of the holes 21ax,21ay.
Refer to fig. 3. The first flow path forming members 30 are provided in parallel in a direction orthogonal to one side of the plate member 21. The first flow path forming members 30 are fixed to the plate member 21 by welding, for example, using the same members.
The first flow path forming member 30 is formed of, for example, an aluminum alloy, a copper alloy, a stainless steel alloy, or the like. In order to ensure weldability, the material of the first flow path forming member 30 is selected from the same series of metals as the plate member 21.
The first flow path forming member 30 covers the holes 21ax to which the first hole group belongs and the holes 21ay to which the second hole group belongs one by one.
Refer to fig. 4. The first flow path forming members 30 each have a first space having a substantially U-shaped cross section, and form a first surface side flow path R1 of the cooling medium through the upper surface 21b of the plate member 21 and the first space.
The first flow path forming member 30 may be disposed obliquely (not shown) with respect to the plate member 21, not in a direction orthogonal to the plate member 21, depending on the position where the holes 21ax,21ay are formed. The holes 21ax and 21ay of the first and second hole groups may be arranged so as to be airtight and covered by the same number (for example, one by one).
Reference is made to fig. 3 and 5. The second flow path forming members 40x,40y have second spaces having a substantially U-shaped cross section, and form second surface side flow paths R2 of the cooling medium through the second surfaces 21c and the second spaces. The second flow path forming members 40x,40y are fixed to the plate member 21 by, for example, welding.
The second flow path forming members 40x,40y are formed of, for example, an aluminum alloy, a copper alloy, a stainless steel alloy, or the like. In order to ensure weldability, the material of the second flow path forming members 40x,40y is selected from the same series of metals as the plate member 21.
The second flow path forming members 40x,40y are respectively provided in parallel to each other in a direction parallel to one side of the plate member 21.
The second flow channel forming members 40x and 40y may be disposed obliquely (not shown) with respect to the plate member 21, not along a direction orthogonal to the plate member 21, depending on the positions at which the holes 21ax and 21ay are formed. The holes 21ax of the first hole group may be arranged so as to be covered with air tightness. Alternatively, the holes 21ay to which the second hole group belongs may be arranged so as to be covered with air tightness.
The second flow path forming members 40x,40y have one side second flow path forming member 40x communicating with the hole 21ax and the fluid inflow portion 25 to which the first hole group belongs, and the other side second flow path forming member 40y communicating with the hole 21ay and the fluid outflow portion 26 to which the second hole group belongs.
The first side second flow path forming member 40x covers the entire holes 21ax belonging to the first hole group and the fluid inflow portion 25, and the second side second flow path forming member 40y covers the entire holes 21ay belonging to the second hole group and the fluid outflow portion 26.
The fluid inflow portion 25 is formed in the protruding portion 21d through a circular hole, and faces the second space of the one-side second flow path forming member 40 x. The fluid inflow portion 25 is formed on a line Lx extending in the X direction. The line Lx passes through the center of the fluid inflow portion 25 in a plan view.
The fluid outflow portion 26 is formed in the protruding portion 21e through a circular hole, and faces the second space of the second channel forming member 40y on the other side. The fluid outflow portion 26 is formed on a line Ly extending in the Y direction. The line Ly passes through the center of the fluid outflow portion 26 in a plan view.
The operation of the cooling device 20 will be described.
Reference is made to fig. 1. The cooling medium cooled in the fluid cooling portion 12 is sent to the cooling device 20.
Refer to fig. 6. Fig. 6 shows the cooling device 20 with the inflow portion connecting member 27 (see fig. 3) and the outflow portion connecting member 28 (see fig. 3) removed for convenience of explanation. The cooling medium flows from the fluid inflow portion 25 into the second surface side flow path R2 formed by the one side second flow path forming member 40 x. A part of the cooling medium flowing through the second surface side flow path R2 is branched at a branching point P1, and flows through the first surface side flow path R1 formed by the first flow path forming member 30-1 (-1 is a suffix for identifying the first flow path forming member 30, and hereinafter, the same applies to fig. 6). Similarly, the cooling medium is branched to the first flow path forming members 30-2 to 30-4, and flows through the first surface side flow paths R1 formed by the respective members.
On the upper surfaces of the first channel forming members 30-1 to 30-4, high-temperature batteries Ba (see fig. 1) are placed in thermal coupling. The cooling medium passing through the first surface side channel R1 cools the battery Ba via the first channel forming members 30-1 to 30-4. Namely, heat exchange is performed. The cooling medium heated by the heat of the battery Ba flows into the second surface side flow path R2 formed by the other side second flow path forming member 40y, and merges at the merging portion P2. The merged cooling medium flows out from the fluid outflow portion 26.
Reference is made to fig. 1. The cooling medium flowing out from the outflow portion connecting member 28 through the fluid outflow portion 26 is sent to the fluid cooling portion 12 to be cooled, and is sent again to the cooling device 20.
In addition, the first flow path forming member 30-1 having the shortest flow path length from the fluid inflow portion 25 has the longest flow path length from the fluid outflow portion 26. On the other hand, the first flow path forming member 30-4 having the longest flow path length from the fluid inflow portion 25 has the shortest flow path length from the fluid outflow portion 26. In other words, the positions of the fluid inflow portion 25 and the fluid outflow portion 26 are set such that the first flow path forming member 30-1 having the shortest flow path length from the fluid inflow portion 25 to the fluid outflow portion 26 has the longest flow path length and the first flow path forming member 30-4 having the longest flow path length from the fluid inflow portion 25 to the fluid outflow portion 26 has the shortest flow path length.
The flow path length of the cooling medium flowing in from the fluid inflow portion 25 and flowing out from the fluid outflow portion 26 is the same when passing through any of the first flow path forming members 30-1 to 30-4.
The cooling device 20 described above has the following effects.
Refer to fig. 2. The cooling device 20 is formed by overlapping a first flow path forming member 30 and second flow path forming members 40x,40y each formed in a substantially U shape on a plate member 21 having holes 21ax,21ay formed therein. By overlapping the flow path forming members 30,40x,40y on the plate member 21, positioning of the members can be easily performed. A battery cooling device for a vehicle that is easy to position and assemble can be provided.
Further, the first flow path forming member 30 communicates any one of the holes 21ax to which the first hole group belongs with any one of the holes 21ay to which the second hole group belongs. The second flow path forming members 40x and 40y include one side second flow path forming member 40x communicating with the hole 21ax to which the first hole group belongs and the other side second flow path forming member 40y communicating with the hole 21ay to which the second hole group belongs. The cooling medium can be distributed and collected to the plurality of first surface side channels R1 (see fig. 6) formed by the plurality of first channel forming members 30 using the one side second channel forming members 40x,40y and the other side second channel forming members 40x,40 y.
The X direction and the Y direction are parallel, and the number of holes 21ax to which the first hole group belongs is equal to the number of holes 21ay to which the second hole group belongs. The holes 21ax of the first hole group are formed at equal intervals (t 1), and the holes 21ay of the second hole group are formed at equal intervals (t 2). In this way, the plurality of first channel forming members 30 can be formed of the same member, and the one side second channel forming members 40x and 40y and the other side second channel forming members 40x and 40y can be formed of the same member. The components can be shared, and assembly of the flow path forming members 30,40x,40y to incorrect positions can be suppressed, so that the efficiency of assembly work can be improved.
Refer to fig. 6. The fluid inflow portion 25 and the fluid outflow portion 26 are arranged such that the first flow path forming member 30-1 having the shortest flow path length from the fluid inflow portion 25 has the longest flow path length from the fluid outflow portion 26 and the first flow path forming member 30-4 having the longest flow path length from the fluid inflow portion 25 has the shortest flow path length from the fluid outflow portion 26. The cooling medium flowing in from the fluid inflow portion 25 flows out from the fluid outflow portion 26 through the first side second flow path forming member 40x, the first flow path forming member 30, and the second side flow path forming member 40y. Even when the plurality of first channel forming members 30 are disposed, the lengths of the channels from the fluid inflow portion 25 to the fluid outflow portion 26 can be equalized, and the amounts of the cooling medium flowing through the channels can be equalized. The entire vehicle battery Ba (see fig. 1) can be cooled efficiently, which is preferable.
The fluid inflow portion 25 and the fluid outflow portion 26 are each formed by a hole formed in the plate member 21. The fluid inflow portion 25 and the fluid outflow portion 26 can be formed by press working or laser working together with the holes 21ax,21ay forming a part of the flow path. The number of steps required for the processing can be reduced, and the cost of the battery cooling device 20 for a vehicle can be reduced.
Example 2 >
Next, a cooling device 20A of embodiment 2 will be described with reference to the drawings.
Refer to fig. 7. The cooling device 20A of example 2 is further provided with an extension 50 in the cooling device 20 (see fig. 3) of example 1. Other basic configurations are common to the cooling device of embodiment 1. For the portions common to embodiment 1, reference numerals are used and detailed description is omitted.
The extension 50 includes a first member 51 connected to the other second channel forming member 40y and extending parallel to the first channel forming member 30, and a second member 52 extending in a direction perpendicular to the end of the first member 51.
The outflow connecting member 28 faces the end of the second member 52. The outflow connecting member 28 is provided adjacent to the inflow connecting member 27. That is, the fluid outflow portion is formed at a position adjacent to the fluid inflow portion.
In the cooling device 20A of embodiment 2, the flow path length of the cooling medium flowing in from the inflow portion connecting member 27 and flowing out from the outflow portion connecting member 28 is the same in the case of passing through any of the first flow path forming members 30.
The above-described battery cooling device 20A for a vehicle also exhibits the effects specified by the present invention.
Further, an extension portion 50 is connected to the second channel forming member 40y on the other side so that the fluid outflow portion 26 is positioned adjacent to the fluid inflow portion 25. The fluid inflow portion 25 and the fluid outflow portion 26 can be brought close to each other, and thus, for example, a connection structure of a pipe for connecting to the fluid cooling portion 12 (see fig. 1) can be made compact.
The same effect is achieved when the extension portion 50 is extended from the fluid inflow portion and the fluid inflow portion is disposed in the vicinity of the fluid outflow portion by reversing the flow of the cooling medium. That is, the extension portion 50 may be connected to the one-side second flow path forming member so that the fluid inflow portion is positioned adjacent to the fluid outflow portion. In this case, too, the connection structure of the piping of the battery cooling device 20A for a vehicle can be made compact.
Example 3 >
Next, a cooling device 20B of embodiment 3 will be described with reference to the drawings.
Refer to fig. 8. The fluid introduction portion (inflow portion connecting member 27) and the fluid outflow portion (outflow portion connecting member 28) of the cooling device 20B of embodiment 3 are formed on the same side of the plate member 21. Other basic configurations are common to the cooling devices 20,20a of embodiment 1 and/or embodiment 2. For the portions common to embodiment 1 and/or embodiment 2, reference numerals are used and detailed description is omitted.
In the cooling device 20B, the flow path length varies depending on the first flow path forming member 30 to be passed. In this case, more fluid flows through the first channel forming member 30 (the first channel forming member 30 on the lowermost side of the drawing) having the shortest channel length. When a part of the battery Ba (see fig. 1) has a particularly high temperature, the flow path length of the first flow path forming member 30 in contact with such a portion is shortened, whereby a larger amount of fluid can flow. This can effectively cool the battery Ba.
On the other hand, the sizes of the holes 21ax and 21ay may be different from each other in order to uniformly flow the fluid through the first surface side flow path R1 formed by the first flow path forming members 30. For example, the opening areas of the holes 21ax,21ay at the positions where the flow path length is long may be formed to be relatively larger than the opening areas of the holes 21ax,21ay at the positions where the flow path length is short.
The cooling device 20B described above also has the effects specified in the present invention.
The cooling device 20B has a fluid inflow portion (inflow portion connecting member 27) and a fluid outflow portion (outflow portion connecting member 28) formed on the same side of the substantially rectangular plate-like plate member 21. Therefore, the fluid inflow portion and the fluid outflow portion can be formed in close proximity without providing the extension portion 50 (see fig. 7).
The matters described in the embodiments can be appropriately combined. The present invention is not limited to the examples insofar as the functions and effects of the present invention are exhibited.
Industrial applicability
The battery cooling device for a vehicle according to the present invention is suitable for being mounted on a hybrid vehicle.
Description of the reference numerals
20. 20A, 20B …;
21 … plate member, 21ax … hole of the first hole group, 21ay … hole of the second hole group, 21b … upper surface (first surface), 21c … lower surface (second surface);
25 … fluid inflow;
26 … fluid outflow;
30 … first flow path forming member;
40x …,40y …, and the other side;
lx … lines extending in the X direction, ly … lines extending in the Y direction;
r1 … first face side flow path;
r2 … second face side flow path;
ba … battery for vehicle.
Claims (6)
1. A battery cooling device (20; 20A; 20B) for a vehicle is provided so as to be in contact with a battery (Ba) mounted on the vehicle, and cools the battery (Ba) by using a cooling medium flowing inside, and is characterized by comprising:
a plate-like plate member (21) in which a plurality of holes (21 ax,21 ay) are formed;
a first flow path forming member (30) having a first space having a substantially U-shaped cross section, wherein a first surface side flow path (R1) of the cooling medium is formed by the first surface (21 b) of the plate member (21) and the first space;
a second flow path forming member (40 x,40 y) having a second space having a substantially U-shaped cross section, the second surface side flow path (R2) of the cooling medium being formed by a second surface (21 c) which is a back surface of the first surface (21 b) and the second space;
the holes (21 ax,21 ay) belong to any one of a plurality of holes (21 ax) to which a first hole group formed in the X direction on the surface of the plate member (21) belongs and a plurality of holes (21 ay) to which a second hole group formed in the Y direction on the surface of the plate member (21) belongs,
the first flow path forming member (30) is provided with a plurality of first surface side flow paths (R1) for communicating any one of the holes (21 ax) to which the first hole group belongs with any one of the holes (21 ay) to which the second hole group belongs,
the second flow path forming members (40 x,40 y) have one side second flow path forming member (40 x) communicating with the hole (21 ax) to which the first hole group belongs and the other side second flow path forming member (40 y) communicating with the hole (21 ay) to which the second hole group belongs.
2. The vehicular battery cooling apparatus according to claim 1, wherein,
the X-direction and the Y-direction are parallel,
the number of holes (21 ax) to which the first hole group belongs is equal to the number of holes (21 ay) to which the second hole group belongs,
the holes (21 ax) to which the first hole group belongs are formed at equal intervals,
the holes (21 ay) to which the second hole group belongs are formed at equal intervals, respectively.
3. The battery cooling apparatus for a vehicle according to claim 2, wherein,
further has: a fluid inflow portion (25) configured to face the second space of the one-side second flow path forming member (40 x) and into which the cooling medium flows; a fluid outflow portion (26) configured to face the second space of the second flow path forming member (40 y) on the other side and to allow the cooling medium to flow out;
the fluid inflow portion (25) and the fluid outflow portion (26) are arranged such that, when the length of the second surface side flow path (R2) is taken as a reference, the first flow path forming member (30) having the shortest flow path length from the fluid inflow portion (25) has the longest flow path length from the fluid outflow portion (26) and the first flow path forming member (30) having the longest flow path length from the fluid inflow portion (25) has the shortest flow path length from the fluid outflow portion (26).
4. The battery cooling apparatus for a vehicle according to claim 3, wherein,
the fluid inflow portion (25) and the fluid outflow portion (26) are each formed by a hole formed in the plate member (21).
5. The vehicular battery cooling apparatus according to claim 3 or 4, characterized in that,
an extension portion (50) is connected to the second flow path forming member (40 y) on the other side, and extends so that the fluid outflow portion (26) is positioned adjacent to the fluid inflow portion (25).
6. The vehicular battery cooling apparatus according to claim 3 or 4, characterized in that,
an extension portion (50) is connected to the one-side second flow path forming member (40 x) so as to extend the fluid inflow portion (25) to a position adjacent to the fluid outflow portion (26).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-051308 | 2019-03-19 | ||
| JP2019051308 | 2019-03-19 | ||
| PCT/JP2020/011452 WO2020189622A1 (en) | 2019-03-19 | 2020-03-16 | Vehicle battery cooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113544898A CN113544898A (en) | 2021-10-22 |
| CN113544898B true CN113544898B (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080019689.6A Active CN113544898B (en) | 2019-03-19 | 2020-03-16 | Battery cooling device for vehicle |
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| Country | Link |
|---|---|
| JP (1) | JP7101449B2 (en) |
| CN (1) | CN113544898B (en) |
| WO (1) | WO2020189622A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2020189622A1 (en) | 2020-09-24 |
| CN113544898A (en) | 2021-10-22 |
| JP7101449B2 (en) | 2022-07-15 |
| JPWO2020189622A1 (en) | 2021-10-21 |
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