CN215008389U - Waterproof gasket and battery pack - Google Patents
Waterproof gasket and battery pack Download PDFInfo
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- CN215008389U CN215008389U CN202023228148.0U CN202023228148U CN215008389U CN 215008389 U CN215008389 U CN 215008389U CN 202023228148 U CN202023228148 U CN 202023228148U CN 215008389 U CN215008389 U CN 215008389U
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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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Abstract
The utility model provides a waterproof gasket and battery package, include: the gasket comprises a gasket body, a sealing ring and a sealing ring, wherein the gasket body is an insulating piece, and the middle part of the gasket body is provided with a central hole; the first electrode is arranged on the gasket body and surrounds the central hole; the second electrode is arranged on the gasket body and surrounds the central hole; the first electrode and the second electrode are arranged at intervals and used for being connected with the battery management module to sense whether the gasket body leaks or not. The utility model provides a waterproof gasket can be connected with battery management module through set up first electrode and second electrode on the packing ring body to whether detect sealing position and leak, whether track waterproof gasket sealing position and leak, be favorable to ensureing waterproof gasket seal box, be favorable to discovering the box leakage early, be favorable to preventing that battery package weeping from leading to the incident.
Description
Technical Field
The utility model belongs to the technical field of the battery package is sealed, more specifically says, relates to a waterproof gasket and battery package.
Background
In order to prevent the box body from leaking water in the existing battery pack, a sealing gasket is arranged at the connecting position of the box body to seal the gap at the connecting position of the box body and prevent moisture from leaking into the box body. When the battery pack is used, the battery pack can be subjected to different impacts, so that the battery pack box body vibrates or deforms, and further the sealing of the sealing gasket fails; also, as the gasket of the battery pack ages, the sealing of the case may fail.
After the box body is sealed to lose efficacy, moisture can enter into the box body, so that the battery cells in the box body are easy to be subjected to short circuit combustion and even explode. The existing battery pack cannot detect the sealing failure of the sealing gasket, and certain potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a waterproof gasket to the battery package that exists among the solution prior art can't detect sealed sealing failure, has the technical problem of potential safety hazard.
In order to achieve the above object, the utility model adopts the following technical scheme: provided is a waterproof gasket including:
the gasket comprises a gasket body, a sealing ring and a sealing ring, wherein the gasket body is an insulating piece, and the middle part of the gasket body is provided with a central hole;
the first electrode is arranged on the gasket body and surrounds the central hole; and the number of the first and second groups,
the second electrode is arranged on the gasket body and surrounds the central hole;
the first electrode and the second electrode are arranged at intervals and used for being connected with the battery management module to sense whether the gasket body leaks or not.
The first electrode and the second electrode are arranged on the gasket body, and when conductive liquid flows through two surfaces of the gasket body, the conductive liquid is in contact with the first electrode and the second electrode, so that the first electrode is conducted with the second electrode, and a potential difference or current is generated between the first electrode and the second electrode; after the first electrode and the second electrode are conducted, the battery management module can detect the change of potential difference or current between the first electrode and the second electrode, and then can judge whether the sealing position of the gasket body leaks. Therefore, the potential difference or the current of the first electrode and the second electrode in the waterproof gasket can be acquired at any time, whether the sealing position of the waterproof gasket leaks or not can be tracked in time, the waterproof gasket sealing box can be ensured, the box leakage can be found as soon as possible, and the safety accident caused by the leakage of the battery pack can be prevented.
In an embodiment of the present invention, the first electrode is located on one side of the second electrode away from the central hole, the gasket body is further provided with a first lead connected to the first electrode and a second lead connected to the second electrode, and the first lead and the second lead extend out of the gasket body.
Through adopting above-mentioned technical scheme, can be convenient for first electrode and second electrode and external circuit to be connected.
In an embodiment of the present invention, the first lead and the second lead are embedded in both sides of the gasket body in the thickness direction, respectively.
Through adopting above-mentioned technical scheme, can do the surperficial level and smooth of guarantee packing ring body.
In one embodiment of the present invention, the first lead and the second lead are led out from a side of the gasket body near the center hole.
Through adopting above-mentioned technical scheme, be convenient for the wiring of first lead wire and second lead wire.
The utility model discloses an in the embodiment, be equipped with protruding muscle on the packing ring body, protruding muscle is around the centre bore setting, and first electrode and second electrode are fixed in on the protruding muscle.
By adopting the technical scheme, the protection of the first electrode and the second electrode is facilitated, and the displacement of the first electrode and the second electrode is prevented.
The utility model discloses an in the embodiment, the quantity of protruding muscle is two, and first electrode and second electrode are located two protruding muscle respectively, form the bar groove between two protruding muscle and the packing ring body.
By adopting the technical scheme, the distance between the first electrode and the second electrode can be controlled conveniently.
In one embodiment of the present invention, the first electrode is a copper strip, and the second electrode is an aluminum strip; or the first electrode is an aluminum strip, and the second electrode is a copper strip.
Through adopting above-mentioned technical scheme, be favorable to the processing of waterproof gasket.
In one embodiment of the present invention, the waterproof gasket further includes a diaphragm, and the first electrode and the second electrode are respectively connected to both sides of the diaphragm.
Through adopting above-mentioned technical scheme, can ensure the interval between first electrode and the second electrode.
In one embodiment of the present invention, the first electrode and the second electrode are spaced apart by 0.5mm to 5mm in the width direction of the gasket body.
By adopting the technical scheme, the first electrode and the second electrode can be prevented from being short-circuited, and the detection sensitivity is ensured.
In one embodiment of the present invention, the first electrode and the second electrode are integrally formed on the gasket body.
The embodiment of the utility model provides a still provide a battery pack, including the box, install the battery module in the box and be used for controlling the battery management module of battery module, the box includes the first casing of mutual lock and the waterproof packing ring of second casing battery pack in any embodiment of the aforesaid still, and the waterproof packing ring is installed in the position of first casing and second casing looks lock, and first electrode and second electrode are connected with battery management module electricity respectively to first electrode and second electrode transmit the weeping signal to battery management module when packing ring body weeping.
Through adopting foretell waterproof gasket, can be connected with battery management module to the seal condition of real-time detection battery package is favorable to the safety of guarantee battery package.
In an embodiment of the present invention, the battery pack further includes a positive charging port, a first control switch, a positive discharging port, a second control switch, a negative charging port, a negative discharging port and a third control switch, the first control switch is connected in series between the positive electrode of the battery module and the positive charging port, the second control switch is connected in series between the positive electrode of the battery module and the positive discharging port, the third control switch is connected in series between the negative electrode of the battery module and the negative charging port, the negative discharging port is connected to one end of the third control switch connected to the negative charging port; the first control switch, the second control switch and the third control switch are all controlled by the battery management module; when the battery management module receives the leakage signal, the battery management module controls the first control switch, the second control switch and the third control switch to be switched off.
Through adopting above-mentioned technical scheme, can block battery package when the packing ring body weeping and charge or discharge, be favorable to guaranteeing the safety of battery package.
In an embodiment of the present invention, the second control switch is connected in parallel to a pre-charging circuit, the pre-charging circuit includes a resistor and a fourth control switch, the resistor and the fourth control switch are connected in series between the positive electrode and the positive electrode discharge port of the battery module, and the fourth control switch is controlled by the battery management module; and when the battery management module receives the leakage signal, the battery management module controls the fourth control switch to be switched off.
Through adopting above-mentioned technical scheme, can realize the pre-charge function, and can block the pre-charge circuit when the packing ring body weeping, guarantee battery package safety of charging.
The utility model discloses an in the embodiment, the battery package still includes the busbar voltage detecting element, and the busbar voltage detecting element series connection is between negative pole discharge port and positive discharge port, and the voltage value that the battery management module received busbar voltage detecting element and detected.
By adopting the technical scheme, the voltage value of the battery pack during discharging can be detected.
In an embodiment of the present invention, a current sensor is connected in series between the third control switch and the negative electrode charging port, the negative electrode discharging port is connected to one end of the current sensor connected to the negative electrode charging port, and the battery management module receives a current value detected by the current sensor.
By adopting the technical scheme, the current value of the battery pack during charging or discharging can be detected.
The utility model discloses an in the embodiment, the battery package is still including the collection box that is used for detecting the battery module, and battery management module receives the data that the collection box detected.
Through adopting above-mentioned technical scheme, can acquire the data of battery module.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a waterproof gasket and a battery management module according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a waterproof gasket according to an embodiment of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 1;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 5 is a cross-sectional view taken along line C-C of FIG. 3;
fig. 6 is a schematic view of a cross-section of a waterproof gasket in another embodiment of the present invention;
fig. 7 is a schematic view of a cross-section of a waterproof gasket in accordance with a further embodiment of the present invention;
fig. 8 is a partial schematic view of a first electrode according to the present invention;
fig. 9 is a schematic diagram of a circuit structure of a battery pack according to the present invention;
fig. 10 is a schematic diagram of signal transmission in the present invention.
Wherein, in the figures, the respective reference numerals:
1-a gasket body; 10-a central hole; 11-a convex rib; 12-a strip-shaped groove;
21-a first electrode; 210-a first locating hole; 22-a second electrode; 23-a first lead; 24-a second lead; 25-a membrane sheet;
3-a battery management module;
4-a battery module; 41-collection box; 42-a precharge circuit;
IN 1-positive charging port; OUT1 — positive discharge port; IN 2-negative charging port; OUT 2-negative discharge port; v1-bus voltage detection unit;
r1-resistance; k1 — first control switch; k2 — second control switch; k3 — third control switch; k4-fourth control switch.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "inner," "outer," and the like, as used herein, are defined based on the orientation or positional relationship shown in the drawings and are used merely for convenience in describing the present invention and to simplify the description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to fig. 3, a waterproof gasket according to an embodiment of the present invention will be described. The waterproof gasket comprises a gasket body 1, a first electrode 21 and a second electrode 22, wherein the gasket body 1 is an insulating part, the gasket body 1 is used for sealing a gap of a box body, and a central hole 10 is formed in the middle of the gasket body 1. The first electrode 21 is arranged on the gasket body 1, and the first electrode 21 is arranged around the central hole 10; the second electrode 22 is arranged on the gasket body 1, and the second electrode 22 is arranged around the central hole 10; the first electrode 21 and the second electrode 22 are spaced apart, and the first electrode 21 and the second electrode 22 are used to connect with the battery management module 3 to sense whether the gasket body 1 leaks.
In the embodiment of the present invention, by providing the first electrode 21 and the second electrode 22 on the gasket body 1, when the conductive liquid (water, electrolyte, etc.) flows through the two surfaces of the gasket body 1, the conductive liquid contacts with the first electrode 21 and the second electrode 22, so as to switch the first electrode 21 and the second electrode 22 on each other, and a potential difference (or current) is generated between the first electrode 21 and the second electrode 22; after the first electrode 21 and the second electrode 22 are conducted, the battery management module 3 can detect a change in potential difference (or current) between the first electrode 21 and the second electrode 22, and can further determine whether the sealing position of the gasket body 1 is leaked. Therefore, the potential difference (or the current) between the first electrode 21 and the second electrode 22 in the waterproof gasket can be acquired at any time, whether the sealing position of the waterproof gasket leaks or not can be tracked in time, the waterproof gasket sealing box body can be ensured, the box body leakage can be found as soon as possible, and safety accidents caused by leakage of a battery pack can be prevented.
In an embodiment of the present invention, referring to fig. 3, 4 and 5, the first electrode 21 is located on a side of the second electrode 22 away from the central hole 10; the gasket body 1 is also provided with a first lead 23 and a second lead 24, the first lead 23 is connected with the first electrode 21, the second lead 24 is connected with the second electrode 22, and the first lead 23 and the second lead 24 extend out of the gasket body 1. Thus, after the waterproof gasket is mounted, the first and second leads 23 and 24 protrude from the gasket body 1 and can be connected to the battery management module 3, thereby enabling the first and second electrodes 21 and 22 to communicate with the battery management module 3.
Alternatively, referring to fig. 4, the first electrode 21 may be wrapped in the gasket body 1, and the gasket body 1 may be permeable to the conductive liquid, so that when the conductive liquid passes through the surface of the gasket body 1, the conductive liquid permeates into the inside of the gasket body 1 and conducts the first electrode 21 and the second electrode 22. The first electrode 21 and the second electrode 22 may be disposed along the thickness direction of the gasket body 1, and when the liquid passes through the gasket body 1, the liquid penetrates into the gasket body 1 along the thickness direction, so that the first electrode 21 and the second electrode 22 are conducted. Referring to fig. 6, the first electrode 21 and the second electrode 22 may also be exposed outside the gasket body 1, so that when the liquid flows through the surface of the gasket body 1, the first electrode 21 and the second electrode 22 can be conducted without extending into the gasket body 1.
In an embodiment of the present invention, referring to fig. 3 and 5, the first lead 23 and the second lead 24 are embedded in the two sides of the gasket body 1 along the thickness direction S2 of the gasket body 1, respectively. Can ensure that the packing ring body 1 surface is more level and smooth like this, prevent that 1 surperficial arch of packing ring body from influencing the sealed effect of packing ring body 1. The thickness direction S2 of the gasket body 1 is a direction perpendicular to the plane of the gasket body 1.
In an embodiment of the present invention, referring to fig. 2, 3 and 5, the first lead 23 and the second lead 24 extend from a side of the gasket body 1 near the central hole 10. This prevents the first lead 23 and the second lead 24 from being exposed to the case, which may cause the first lead 23 and the second lead 24 to be scratched and loosened.
In an embodiment of the present invention, please refer to fig. 2 to 4, the gasket body 1 is provided with a rib 11, the rib 11 is disposed around the central hole 10, and the first electrode 21 and the second electrode 22 are fixed on the rib 11. The convex ribs 11 can be used for being matched with grooves in the connection position of the box body, so that the waterproof gasket is positioned, and the sealing effect of the waterproof gasket is guaranteed. Moreover, the ribs 11 contribute to increasing the width (dimension in the thickness direction S2 of the gasket body 1) of the first electrode 21 and the second electrode 22, and contribute to preventing the first electrode 21 and the second electrode 22 from being broken. When the gasket is installed, the convex ribs 11 are matched with the grooves, the first electrode 21 and the second electrode 22 can be positioned, and the first electrode 21 and the second electrode 22 are prevented from being extruded, displaced, short-circuited or broken due to the fact that the gasket body 1 is subjected to overlarge pressure in the fastening process of the box body.
Further, referring to fig. 4 and 5, the first electrode 21 and the second electrode 22 are both sheet-like structures and are parallel to each other, the first electrode 21 and the second electrode 22 are both perpendicular to the mounting surface of the gasket body 1, the mounting plane refers to a plane where a portion of the battery pack, which is in contact with the gasket body 1, is located, and when the protruding rib is disposed in the groove, the mounting plane is a bottom surface of the groove.
In an embodiment of the present invention, referring to fig. 3 and fig. 4, the number of the ribs 11 is two, two ribs 11 are disposed along the width direction S1 of the gasket body 1, the first electrode 21 and the second electrode 22 are respectively disposed on the two ribs 11, and the strip-shaped groove 12 is formed between the ribs 11 and the gasket body 1. Adopt two protruding muscle 11 and the 1 formation bar groove 12 of packing ring body, can cooperate with the parting bead that corresponds on the box, be favorable to controlling first electrode 21 and second electrode 22's position, prevent that first electrode 21 and second electrode 22 relative movement when the installation or receive the impact influence the interval between first electrode 21 and the second electrode 22, lead to first electrode and second electrode short circuit or influence the testing result.
In one embodiment of the present invention, in the first electrode 21 and the second electrode 22: one is a copper bar and the other is an aluminum bar. That is, the first electrode 21 is a copper bar, and the second electrode 22 is an aluminum bar; alternatively, the first electrode 21 is an aluminum strip and the second electrode 22 is a copper strip. When the conductive liquid conducts the copper bar and the aluminum bar, a galvanic cell structure is formed, and a potential difference is generated between the copper bar and the aluminum bar, so that the battery management module 3 can be triggered. The copper strips and the aluminum strips are convenient to process and low in cost. Optionally, the gasket body 1 extends between the first electrode 21 and the second electrode 22, such that the first electrode 21 and the second electrode 22 are separated by the gasket body 1, in order to avoid false alarms caused by the first electrode 21 contacting the second electrode 22 during installation of the waterproof gasket. The first electrode or the second electrode can also adopt two conductive sheets such as a copper sheet, an iron sheet, a zinc sheet and the like, as long as a potential difference can be formed in the conductive liquid. The utility model discloses an in other embodiments, first electrode and second electrode also can be the same material of adoption, and battery management module applys voltage on first electrode and second electrode, and when first electrode switches on with the second electrode, current between first electrode and the second electrode is sensed to battery management module to acquire packing ring body weeping signal.
In another embodiment of the present invention, referring to fig. 7, the waterproof gasket further includes a diaphragm 25, and the first electrode 21 and the second electrode 22 are respectively disposed on two sides of the diaphragm 25. The first electrode 21 and the second electrode 22 may be supported by the diaphragm 25 and the first electrode 21 and the second electrode 22 may be spaced apart, which facilitates the processing of a waterproof gasket and can secure the separation between the first electrode 21 and the second electrode 22. The first electrode and the second electrode may be conductive layers plated at both ends of the diaphragm, or the first electrode and the second electrode may be conductive layers adhered or integrally formed on the diaphragm.
In one embodiment of the present invention, referring to fig. 4, the distance between the first electrode 21 and the second electrode 22 along the width direction S1 of the gasket body 1 is 0.5mm to 5 mm. The distance can prevent the first electrode 21 from contacting the second electrode 22 to cause short circuit, and can ensure that the distance between the first electrode 21 and the second electrode 22 is too large to ensure the detection sensitivity. Alternatively, the first electrode 21 and the second electrode 22 may have a pitch of 1mm, 2mm, 3mm, 4mm, or the like in the width direction of the gasket body 1.
Optionally, referring to fig. 8, the first electrode 21 is provided with a first positioning hole 210, the second electrode 22 is provided with a second positioning hole (not shown), and the first positioning hole 210 and the second positioning hole can be used for the gasket body or the diaphragm to extend into so as to fix the positions of the first electrode 21 and the second electrode 22, which is beneficial to ensuring the stability of the positions of the first electrode 21 and the second electrode 22.
In one embodiment of the present invention, referring to fig. 4, the first electrode 21 and the second electrode 22 are integrally formed on the gasket body 1. This ensures that the gasket body 1 fixes the first electrode 21 and the second electrode 22.
The embodiment of the utility model provides a still provide a battery package, please refer to fig. 9 and fig. 10, and the battery package includes box, battery module 4 and battery management module 3, and the battery module is installed in the box, and battery management module 3 is used for controlling battery module 4, and the box includes first casing and second casing, second casing and the mutual lock of first casing. The battery pack further comprises a waterproof gasket in any embodiment, and the waterproof gasket is arranged at the buckling part of the first shell and the second shell; the first electrode 21 and the second electrode 22 are respectively electrically connected with the battery management module 3, and when the gasket body 1 leaks, the first electrode 21 and the second electrode 22 send out a leakage signal to the battery management module 3. Through adopting foretell waterproof gasket, can be connected with battery management module 3 to the seal condition of real-time detection battery package is favorable to the safety of guarantee battery package. Further, the battery management module 3 can receive a leakage signal when the gasket body 1 leaks, so that the on-off of a charging port and a discharging port of the battery pack is controlled, or alarm information is sent out, and the charging and discharging safety of the battery pack is guaranteed.
IN an embodiment of the present invention, please refer to fig. 9 and 10, the battery pack further includes a positive charging port IN1, a positive discharging port OUT1, a negative charging port IN2, a negative discharging port OUT2, a first control switch K1, a second control switch K2 and a third control switch K3, the first control switch K1 is connected IN series between the positive electrode of the battery module 4 and the positive charging port IN1, the second control switch K2 is connected IN series between the positive electrode of the battery module 4 and the positive discharging port OUT1, the third control switch K3 is connected IN series between the negative electrode of the battery module 4 and the negative charging port IN2, and the negative discharging port OUT2 is connected to the end where the third control switch K3 is connected to the negative charging port IN 2. The first control switch K1, the second control switch K2 and the third control switch K3 are all controlled by the battery management module 3. When the battery management module 3 receives the leakage signal, the battery management module 3 controls the first control switch K1, the second control switch K2 and the third control switch K3 to be turned off. Therefore, the battery pack can be prevented from being continuously charged or discharged when the gasket body 1 leaks, and the safety of the battery pack is favorably ensured. The first control switch K1, the second control switch K2, and the third control switch K3 may be isolation switches or the like.
In an embodiment of the present invention, referring to fig. 9 and 10, the second control switch K2 is connected in parallel to the pre-charging circuit 42, the pre-charging circuit 42 includes a resistor R1 and a fourth control switch K4, the resistor R1 and the fourth control switch K4 are connected in series to the positive electrode of the battery module 4 and the positive electrode output port OUT 1; the fourth control switch K4 is controlled by the battery management module 3, and when the battery management module 3 receives the leakage signal, the battery management module 3 controls the fourth control switch K4 to be turned off. The precharge circuit 42 can protect the battery module 4 when the battery pack is discharged, and prevent the current from becoming too high when the battery pack initially charges the external capacitor. When the gasket body 1 leaks, the battery management module 3 controls the pre-charging circuit 42 to be disconnected in time, so that the battery pack is prevented from discharging continuously, a user can check and maintain the battery pack in time, and the safety of the battery pack is guaranteed. The fourth control switch K4 may be a disconnector or the like.
In an embodiment of the present invention, please refer to fig. 9, a current sensor is connected in series between the battery module 4 and the negative discharge port OUT2, and the battery management module 3 receives a current value detected by the current sensor. The current sensor can detect the current value during discharging so as to ensure the discharging safety of the battery module 4. Alternatively, the negative charging port IN2 is connected to the end of the current sensor connected to the negative discharging port OUT2, so that the current when the battery pack is charged can be detected. The current sensor may be a hall sensor or the like.
In an embodiment of the present invention, please refer to fig. 9, the battery pack further includes a bus voltage detecting unit V1, the bus voltage detecting unit V1 is connected in series between the negative discharging port OUT2 and the positive discharging port OUT1, and the battery management module 3 receives the voltage value detected by the bus voltage detecting unit V1. The bus voltage detection means V1 can detect the voltage at the time of discharge of the battery pack and monitor the power usage of the battery pack.
In an embodiment of the present invention, please refer to fig. 9, the battery pack further includes a fuse FU1, one end of the fuse FU1 is connected to the positive electrode of the battery module 4, and the first control switch K1, the second control switch K2 and the pre-charge circuit 42 are connected to the other end of the fuse FU 2. Fuse FU2 is used to help protect the safety of the circuit. Fuse FU2 may be a fuse or the like.
In an embodiment of the present invention, please refer to fig. 9, the battery pack further includes a collecting box 41, the collecting box 41 is used for detecting the battery module 4, and the battery management module 3 receives the data detected by the collecting box 41. The collecting box 41 may be used for detecting the voltage, the temperature and other data of the battery cells in the battery module 4. The detection data of the battery module 4 can be acquired through the acquisition box 41, and the data is fed back to the battery management module 3.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Waterproof gasket, its characterized in that includes:
the gasket comprises a gasket body, a sealing ring and a sealing ring, wherein the gasket body is an insulating part, and the middle part of the gasket body is provided with a central hole;
the first electrode is arranged on the gasket body and surrounds the central hole; and the number of the first and second groups,
the second electrode is arranged on the gasket body and surrounds the central hole;
the first electrode and the second electrode are arranged at intervals and used for being connected with a battery management module to sense whether the gasket body leaks or not.
2. The waterproof gasket as claimed in claim 1, wherein: the first electrode is located on one side, far away from the central hole, of the second electrode, a first lead connected with the first electrode and a second lead connected with the second electrode are further arranged on the gasket body, and the first lead and the second lead extend out of the gasket body.
3. The waterproof gasket as claimed in claim 2, wherein: the first lead and the second lead are buried at two sides of the gasket body along the thickness direction respectively, and the first lead and the second lead penetrate out from one side of the gasket body close to the center hole.
4. The waterproof gasket as claimed in claim 1, wherein: the gasket body is provided with a convex rib, the convex rib is arranged around the central hole, and the first electrode and the second electrode are fixed on the convex rib; the quantity of protruding muscle is two, first electrode with the second electrode is located two respectively on the protruding muscle, two the protruding muscle with form the bar groove between the packing ring body.
5. The waterproof gasket as claimed in claim 1, wherein: of the first and second electrodes: one is a copper bar and the other is an aluminum bar.
6. The waterproof gasket as claimed in any one of claims 1 to 5, wherein: the distance between the first electrode and the second electrode along the width direction of the gasket body is 0.5mm-5 mm.
7. The battery package, including the box, install in battery module in the box and be used for control the battery management module of battery module, the box includes the first casing and the second casing of mutual lock, its characterized in that: the battery pack further comprises the waterproof gasket according to any one of claims 1 to 6, wherein the waterproof gasket is mounted at a position where the first shell and the second shell are buckled, and the first electrode and the second electrode are electrically connected with the battery management module respectively.
8. The battery pack according to claim 7, wherein: the battery pack further comprises a positive electrode charging port, a first control switch, a positive electrode discharging port, a second control switch, a negative electrode charging port, a negative electrode discharging port and a third control switch, wherein the first control switch is connected between the positive electrode of the battery module and the positive electrode charging port in series, the second control switch is connected between the positive electrode of the battery module and the positive electrode discharging port in series, the third control switch is connected between the negative electrode of the battery module and the negative electrode charging port in series, and the negative electrode discharging port is connected to one end, connected with the negative electrode charging port, of the third control switch; the first control switch, the second control switch and the third control switch are all controlled by the battery management module; when the battery management module receives a liquid leakage signal, the battery management module controls the first control switch, the second control switch and the third control switch to be switched off.
9. The battery pack according to claim 8, wherein: the second control switch is connected with a pre-charging circuit in parallel, the pre-charging circuit comprises a resistor and a fourth control switch, the resistor and the fourth control switch are connected between the anode of the battery module and the anode discharge port in series, and the fourth control switch is controlled by the battery management module; and when the battery management module receives a liquid leakage signal, the battery management module controls the fourth control switch to be switched off.
10. The battery pack according to any one of claims 7-9, wherein: the battery pack further comprises a collection box for detecting the battery module, and the battery management module receives data detected by the collection box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023228148.0U CN215008389U (en) | 2020-12-28 | 2020-12-28 | Waterproof gasket and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202023228148.0U CN215008389U (en) | 2020-12-28 | 2020-12-28 | Waterproof gasket and battery pack |
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| CN215008389U true CN215008389U (en) | 2021-12-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115133226A (en) * | 2022-08-22 | 2022-09-30 | 孚能科技(赣州)股份有限公司 | Module output electrode integrated piece, module end plate assembly, battery module and battery pack |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115133226A (en) * | 2022-08-22 | 2022-09-30 | 孚能科技(赣州)股份有限公司 | Module output electrode integrated piece, module end plate assembly, battery module and battery pack |
| CN115133226B (en) * | 2022-08-22 | 2023-06-27 | 孚能科技(赣州)股份有限公司 | Module output electrode integral part, module end plate assembly, battery module and battery pack |
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