Anti-explosion valve opening assembly, shell and battery cell

Abstract

The utility model discloses an explosion-proof valve opening assembly, a shell and a battery cell, the explosion-proof valve opening assembly comprises a plate body, a shell and a battery cell, the plate body is provided with an explosion-proof valve; the puncturing assembly is rotatably arranged on the plate body, and a puncturing part used for puncturing the anti-explosion valve is formed at one end of the puncturing assembly; and the driving mechanism is arranged on the plate body, and the driving mechanism is connected with the end, away from the puncturing part, of the puncturing assembly and used for driving the puncturing assembly to rotate so that the puncturing part can puncture the anti-explosion valve. According to the anti-explosion valve opening assembly, the anti-explosion valve can be rapidly opened when thermal runaway occurs, and control is easy and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and more specifically, to an explosion-proof valve opening assembly, a housing and an electric core. Background Art

[0002] In the related art, when the electric core undergoes thermal runaway, the explosion-proof valve of the electric core cannot be quickly opened, which easily leads to an explosion accident of the electric core and affects the use safety of the electric core. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide an explosion-proof valve opening assembly, which can quickly open the explosion-proof valve during thermal runaway, and has simple and efficient control.

[0004] Another object of the utility model is to provide a housing having the above explosion-proof valve opening assembly.

[0005] Still another object of the utility model is to provide an electric core having the above housing.

[0006] The explosion-proof valve opening assembly according to an embodiment of the utility model includes: a plate body, on which an explosion-proof valve is provided; a puncturing assembly rotatably provided on the plate body, and one end of the puncturing assembly is formed with a puncturing portion for puncturing the explosion-proof valve; and a driving mechanism provided on the plate body, the driving mechanism being connected to the end of the puncturing assembly away from the puncturing portion for driving the puncturing assembly to rotate so that the puncturing portion punctures the explosion-proof valve.

[0007] According to the explosion-proof valve opening assembly of the embodiment of the utility model, one end of the puncturing assembly is formed with a puncturing portion for puncturing the explosion-proof valve, the driving mechanism is connected to the end of the puncturing assembly away from the puncturing portion for driving the puncturing assembly to rotate so that the puncturing portion punctures the explosion-proof valve, enabling the puncturing assembly to quickly open the explosion-proof valve, effectively improving the pressure relief efficiency, and making the opening of the explosion-proof valve more controllable and efficient, ensuring the rapid release of the internal pressure of the electric core, preventing the occurrence of explosion accidents, and at the same time being more convenient and simple to control, and capable of improving the control efficiency.

[0008] In addition, the explosion-proof valve opening assembly according to the above embodiment of the utility model may further have the following additional technical features:

[0009] According to some embodiments of the present utility model, for the explosion-proof valve opening assembly, the puncturing assembly includes: a first connecting portion, with the puncturing portion provided at one end of the first connecting portion; a second connecting portion, the second connecting portion is connected to the end of the first connecting portion away from the puncturing portion and the connection is rotatably connected to the plate body. The first connecting portion and the second connecting portion form an angle with each other, and the driving mechanism drives the end of the second connecting portion away from the first connecting portion to rotate relative to the plate body.

[0010] According to some embodiments of the present utility model, the driving mechanism includes: a driving motor, the driving motor is located on the side of the puncturing assembly where the puncturing portion is provided and is spaced apart. The driving motor has an output shaft; a connecting line, one end of the connecting line is connected to the output shaft and the other end is connected to the end of the second connecting portion away from the first connecting portion.

[0011] According to some embodiments of the present utility model, the driving motor is electrically connected to the positive electrode and the negative electrode of the battery cell. The driving mechanism further includes: a switch assembly, the switch assembly is connected between the positive electrode or the negative electrode and the driving motor.

[0012] According to some embodiments of the present utility model, the switch assembly includes: a switch body, the switch body is connected between the positive electrode or the negative electrode and the driving motor; a temperature control system, the temperature control system includes a controller and a temperature detection component. The temperature detection component is used to detect the temperature of the battery cell. The controller is connected to the temperature detection component and the switch body, and the controller is used to control the closing of the switch body according to the detection result of the temperature detection component.

[0013] According to some embodiments of the present utility model, the temperature control system is electrically connected to the positive electrode and the negative electrode.

[0014] According to some embodiments of the present utility model, the puncturing assembly further includes: an elastic member, the elastic member is located between the plate body and the first connecting portion to drive the first connecting portion to rotate towards the side away from the explosion-proof valve.

[0015] According to some embodiments of the present utility model, the puncturing assembly is provided on the explosion-proof valve.

[0016] The housing according to the embodiments of the present utility model includes the explosion-proof valve opening assembly according to the embodiments of the present utility model.

[0017] The housing according to an embodiment of the present utility model is formed with a puncturing portion at one end of a puncturing assembly for puncturing an explosion-proof valve. A driving mechanism is connected to the end of the puncturing assembly away from the puncturing portion and is used to drive the puncturing assembly to rotate so that the puncturing portion punctures the explosion-proof valve, enabling the puncturing assembly to quickly open the explosion-proof valve, effectively improving the pressure relief efficiency, and making the opening of the explosion-proof valve more controllable and efficient. This ensures the rapid release of the internal pressure of the battery cell, prevents the occurrence of explosion accidents, and at the same time, the control is more convenient and simple, capable of improving the control efficiency.

[0018] The battery cell according to an embodiment of the present utility model includes the housing according to the embodiment of the present utility model.

[0019] The battery cell according to an embodiment of the present utility model is formed with a puncturing portion at one end of a puncturing assembly for puncturing an explosion-proof valve. A driving mechanism is connected to the end of the puncturing assembly away from the puncturing portion and is used to drive the puncturing assembly to rotate so that the puncturing portion punctures the explosion-proof valve, enabling the puncturing assembly to quickly open the explosion-proof valve, effectively improving the pressure relief efficiency, and making the opening of the explosion-proof valve more controllable and efficient. This ensures the rapid release of the internal pressure of the battery cell, prevents the occurrence of explosion accidents, and at the same time, the control is more convenient and simple, capable of improving the control efficiency.

[0020] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0022] Figure 1 is a schematic structural diagram of a battery cell according to an embodiment of the present utility model;

[0023] Figure 2 is a schematic structural diagram of an explosion-proof valve opening assembly according to an embodiment of the present utility model;

[0024] Figure 3 is Figure 2 an enlarged structural diagram of the circled area A in ;

[0025] Figure 4 is a top view of an explosion-proof valve opening assembly according to an embodiment of the present utility model;

[0026] Figure 5 is a schematic structural diagram of the cooperation between a driving mechanism and a plate body according to an embodiment of the present utility model;

[0027] Figure 6 is a schematic structural diagram of an explosion-proof valve according to an embodiment of the present utility model;

[0028] Figure 7 is a schematic structural diagram of a puncturing assembly according to an embodiment of the present utility model;

[0029] Figure 8 is a schematic structural diagram of an elastic member according to an embodiment of the present utility model;

[0030] Figure 9 is a partial schematic structural diagram of a driving mechanism according to an embodiment of the present utility model.

[0031] Reference numerals:

[0032] 100, explosion-proof valve opening assembly; 200, housing; 300, battery cell;

[0033] 10, plate body; 11, explosion-proof valve; 12, base; 13, through hole;

[0034] 20, puncturing assembly; 21, puncturing portion; 201, first connecting portion; 202, second connecting portion; 203, fixing portion;

[0035] 30, driving mechanism; 31, driving motor; 32, connecting wire; 33, switch assembly; 311, output shaft;

[0036] 41, positive electrode; 42, negative electrode;

[0037] 50, elastic member;

[0038] 60, wire harness. Detailed implementation manners

[0039] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0040] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0041] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features. The meaning of "a plurality" is two or more. The first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. The first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature.

[0042] The explosion-proof valve opening assembly 100 according to an embodiment of the present utility model will be described below with reference to the accompanying drawings.

[0043] Refer to Figures 1 - 4 As shown, the explosion-proof valve opening assembly 100 according to an embodiment of the present utility model may include: a plate body 10.

[0044] Specifically, an explosion-proof valve 11 is provided on the plate body 10. When the battery cell 300 undergoes thermal runaway, the explosion-proof valve 11 can relieve pressure and exhaust gas from the battery cell 300, release the internal pressure of the battery cell 300, and ensure the safety of use of the battery cell 300.

[0045] In addition, as Figures 1 - 4 shown, the explosion-proof valve opening assembly 100 includes a piercing assembly 20 and a driving mechanism 30. The piercing assembly 20 is rotatably provided on the plate body 10, and a piercing portion 21 is formed at one end of the piercing assembly 20. The piercing portion 21 can pierce the explosion-proof valve 11. The driving mechanism 30 is provided on the plate body 10. The driving mechanism 30 is connected to the end of the piercing assembly 20 away from the piercing portion 21. The driving mechanism 30 can drive the piercing assembly 20 to rotate, so that the piercing portion 21 can rotate relative to the plate body 10 to pierce the explosion-proof valve 11.

[0046] Thus, when the battery cell 300 undergoes thermal runaway, the explosion-proof valve 11 can be quickly opened through the piercing assembly 20, effectively improving the pressure relief efficiency, and making the opening of the explosion-proof valve 11 more controllable and efficient, ensuring the rapid release of the internal pressure of the battery cell 300, preventing the occurrence of explosion accidents, and ensuring the safety of use of the battery cell 300. At the same time, the driving mechanism 30 can directly drive the piercing assembly 20 to rotate, making the control more convenient and simple, improving the control efficiency, and having a simple structure, which is beneficial to reducing the production cost.

[0047] In some embodiments, as Figure 5 shown, a through hole 13 is provided on the plate body 10. The explosion-proof valve 11 is provided in the through hole 13, and the explosion-proof valve 11 blocks the through hole 13. When the battery undergoes thermal runaway, the explosion-proof valve 11 can open the through hole 13 to achieve pressure relief, and the explosion-proof valve 11 can be quickly opened through the piercing assembly 20, effectively improving the pressure relief efficiency, and ensuring the safety of use of the battery.

[0048] In some embodiments, as Figure 3 shown, the piercing portion 21 is formed into a pointed head, which is convenient for piercing the explosion-proof valve 11, making the piercing of the explosion-proof valve 11 more reliable, and the structure of the piercing portion 21 is simple, which is convenient for processing and manufacturing.

[0049] For the explosion-proof valve opening assembly 100 according to the embodiments of the present invention, a piercing portion 21 for piercing the explosion-proof valve 11 is formed at one end of the piercing assembly 20, and the driving mechanism 30 is connected to the end of the piercing assembly 20 away from the piercing portion 21, and is used to drive the piercing assembly 20 to rotate so that the piercing portion 21 pierces the explosion-proof valve 11, enabling the piercing assembly 20 to quickly open the explosion-proof valve 11, effectively improving the pressure relief efficiency, and the opening of the explosion-proof valve 11 is more controllable and efficient, ensuring the rapid release of the internal pressure of the battery cell 300, preventing the occurrence of explosion accidents, and at the same time, the control is more convenient and simple, which can improve the control efficiency.

[0050] In some embodiments of the present invention, as Figure 3 shown in Figure 7 shown, the piercing assembly 20 includes a first connection portion 201 and a second connection portion 202. A piercing portion 21 is provided at one end of the first connection portion 201, the second connection portion 202 is connected to the end of the first connection portion 201 away from the piercing portion 21, and the connection portion between the second connection portion 202 and the first connection portion 201 is rotatably connected to the plate body 10, which can realize the rotational connection between the piercing assembly 20 and the main body and meet the required connection requirements.

[0051] In addition, as Figure 3 shown in Figure 7 shown, the first connection portion 201 and the second connection portion 202 form an angle with each other. The driving mechanism 30 drives the end of the second connection portion 202 away from the first connection portion 201 to rotate relative to the plate body 10, so as to be able to drive the first connection portion 201 to rotate relative to the plate body 10, ensuring reliable piercing of the explosion-proof valve 11 by the piercing assembly 20, making the control simple, ensuring the stability and flexibility of the piercing assembly 20, and the structure of the piercing assembly 20 is simple, which is convenient for processing and manufacturing.

[0052] According to some embodiments of the present invention, as Figures 1 - 4 shown in Figure 9 shown, the driving mechanism 30 includes a driving motor 31 and a connecting line 32. The driving motor 31 is located on the side of the piercing assembly 20 where the piercing portion 21 is provided (for example, Figure 4 the right side shown in

[0053] Thus, when thermal runaway occurs in the battery cell 300, the drive motor 31 can drive the output shaft 311 to rotate, and the connecting wire 32 can be wound around the output shaft 311, so that the end of the connecting wire 32 away from the first connecting portion 201 can drive the second connecting portion 202 to rotate relative to the plate body 10, making it convenient to control the rotation of the second connecting portion 202 relative to the plate body 10, and the structure of the drive mechanism 30 is simple, which can reduce production costs.

[0054] It should be noted that for the convenience of description, the orientations such as "left" and "right" in the present invention are based on the orientation relationship shown in the drawings, rather than the orientation limitations in the actual application process.

[0055] In some embodiments, as Figure 3 shown in Figure 7 the figure, a fixing portion 203 is provided at the end of the second connecting portion 202 away from the first connecting portion 201, and the fixing portion 203 is connected to the end of the connecting wire 32 away from the drive motor 31 (for example, Figure 4 the left end shown in the figure), which can meet the connection requirement between the connecting wire 32 and the second connecting portion 202 and ensure reliable connection.

[0056] In the embodiments of the present invention, the specific structure of the fixing portion 203 can be set according to actual situations. For example, the fixing portion 203 can be formed as a hole or a shaft on the second connecting portion 202, which is convenient for processing and manufacturing.

[0057] In some embodiments of the present invention, as Figure 1 shown in Figure 2 shown in Figure 4 shown in Figure 9 the figure, the drive motor 31 is electrically connected to the positive electrode 41 and the negative electrode 42 of the battery cell 300, and the drive mechanism 30 further includes a switch assembly 33, and the switch assembly 33 is connected between the positive electrode 41 or the negative electrode 42 and the drive motor 31. Thus, the switch can control whether the drive motor 31 is connected to the positive electrode 41 and the negative electrode 42, so as to realize the control of the power supply requirement of the drive motor 31, ensure the working requirement of the drive motor 31 when thermal runaway occurs in the battery cell 300, and make the control more convenient and reliable.

[0058] At the same time, by electrically connecting the drive motor 31 to the positive electrode 41 and the negative electrode 42, the battery cell 300 can directly supply power to the drive motor 31, meet the power supply requirement of the drive motor 31, can eliminate the external power supply structure for supplying power to the drive motor 31, effectively reduce the occupied space, ensure the compact structure, and is beneficial to reducing production costs.

[0059] In some embodiments, as Figure 4As shown, the drive motor 31 is connected to the positive electrode 41 and the negative electrode 42 through a wire harness 60, ensuring a reliable connection between the drive motor 31 and the positive electrode 41 and the negative electrode 42, making the installation position of the drive motor 31 more flexible, the structure compact, and avoiding interference between the drive motor 31 and other structures.

[0060] According to some embodiments of the present invention, the switch assembly 33 may include a switch body and a temperature control system. The switch body is connected between the positive electrode 41 or the negative electrode 42 and the drive motor 31. The temperature control system includes a controller and a temperature detection component. The temperature detection component can detect the temperature of the battery cell 300. The controller is connected to the temperature detection component and the switch body, so that the controller can control the closing of the switch body according to the detection result of the temperature detection component.

[0061] Thus, the controller can intelligently control the closing of the switch body according to the temperature detected by the temperature detection component of the battery cell 300, thereby realizing the control of the operation of the drive motor 31, ensuring that the puncturing assembly 20 can quickly open the explosion-proof valve 11, effectively improving the pressure relief efficiency, preventing the occurrence of explosion accidents, ensuring the safety of use of the battery cell 300, and the structure of the switch assembly 33 is simple and convenient for processing and manufacturing. At the same time, by detecting the temperature of the battery cell 300 to control the switch body, the detection can be made more accurate, so as to ensure more precise control and ensure the safety of use of the battery cell 300. For example, the switch assembly 33 can be a normally open temperature control switch of 3V - 5V.

[0062] For example, in some embodiments, when the temperature of the battery cell 300 is below 60°C, the switch body is normally open, and when the temperature of the battery cell 300 is 60°C or above, the controller controls the switch body to close. The temperature detection component detects the temperature of the battery cell 300 in real time. When the temperature of the battery cell 300 is less than 60°C, the switch body is normally open and the drive motor 31 is in a stationary state; when the temperature of the battery cell 300 reaches 60°C, the controller controls the switch body to close, so that the drive motor 31 can be connected to the positive electrode 41 and the negative electrode 42, realizing the power supply to the drive motor 31. The drive motor 31 can drive the output shaft 311 to rotate, and the connecting wire 32 is wound around the output shaft 311, so that the end of the connecting wire 32 away from the first connecting portion 201 can drive the plate body 10 to rotate, thereby driving the first connecting portion 201 to rotate relative to the plate body 10, enabling the puncturing portion 21 to puncture the explosion-proof valve 11, meeting the requirement of quickly opening the explosion-proof valve 11, effectively improving the pressure relief efficiency, and ensuring the safety of use of the battery cell 300.

[0063] In some embodiments of the present invention, such as Figure 9As shown, the temperature control system is electrically connected to the positive electrode 41 and the negative electrode 42, so that the battery cell 300 can directly power the temperature control system to meet the power supply requirements of the temperature control system, and can eliminate the need for an external power supply structure to power the temperature control system, effectively reducing the occupied space, ensuring a compact structure, and helping to reduce production costs.

[0064] According to some embodiments of the present invention, Figure 3 and Figure 8 As shown, the piercing assembly 20 further includes an elastic member 50, which is located between the plate body 10 and the first connecting portion 201, and the elastic member 50 can drive the first connecting portion 201 to rotate toward the side away from the explosion-proof valve 11. Therefore, when the battery cell 300 is working normally or being transported, the elastic member 50 drives the first connecting portion 201 to rotate toward the side away from the explosion-proof valve 11, which can prevent the piercing portion 21 from accidentally touching the explosion-proof valve 11, thereby increasing the safety of use, ensuring that the battery cell 300 works reliably, and is easy to transport.

[0065] At the same time, the driving mechanism 30 can overcome the elastic potential energy of the elastic member 50 to drive the second connecting part 202 to rotate toward the side close to the explosion-proof valve 11, thereby driving the first connecting part 201 to rotate toward the side close to the explosion-proof valve 11, ensuring that the piercing part 21 can pierce the explosion-proof valve 11, so that the internal pressure of the battery cell 300 is quickly released, preventing the occurrence of explosion accidents, and ensuring the safety of the battery cell 300.

[0066] In some embodiments of the present invention, Figures 2 - 4 As shown, the puncture component 20 is arranged on the explosion-proof valve 11, which can reduce the other space occupied by the plate body 10, so that the structure of the explosion-proof valve opening component 100 is compact, and the puncture component 20 can act on the explosion-proof valve 11 more directly and quickly, which is beneficial to improve the efficiency and safety of opening the explosion-proof valve 11.

[0067] In some embodiments, Figure 6 As shown, a base 12 is provided on the explosion-proof valve 11, and a rotating shaft is provided on the base 12. The puncture component 20 is inserted on the rotating shaft, and the puncture component 20 is rotatably connected to the rotating shaft, so as to realize the fixation of the puncture device on the explosion-proof valve 11, ensure that the puncture component 20 is reliably fixed, and facilitate the rotation of the puncture component 20 relative to the explosion-proof valve 11 to puncture the explosion-proof valve 11, facilitate the processing and manufacturing of the explosion-proof valve 11, and at the same time ensure the structural strength of the explosion-proof valve 11, avoid local weakening of the explosion-proof valve 11, and ensure the safety of the battery cell 300.

[0068] In some embodiments where the lancing assembly 20 further includes an elastic member 50, such as Figure 3As shown, the elastic member 50 can be a snap ring. The snap ring is sleeved on the rotating shaft. One end of the snap ring abuts against the explosion-proof valve 11, and the other end of the snap ring abuts against the surface of the puncturing assembly 20 provided with the puncturing portion 21, ensuring that the snap ring is fixed reliably between the explosion-proof valve 11 and the first connecting portion 201, and enabling the snap ring to drive the first connecting portion 201 to rotate towards the side away from the explosion-proof valve 11, preventing the puncturing portion 21 from accidentally touching the explosion-proof valve 11. At the same time, the structure of the elastic member 50 is simple, which is beneficial to reducing the production cost.

[0069] The housing 200 according to an embodiment of the present invention includes the explosion-proof valve opening assembly 100 according to an embodiment of the present invention. Since the explosion-proof valve opening assembly 100 according to an embodiment of the present invention has the above-mentioned beneficial technical effects, the housing 200 according to an embodiment of the present invention, through one end of the puncturing assembly 20 is formed with a puncturing portion 21 for puncturing the explosion-proof valve 11, and the driving mechanism 30 is connected to the end of the puncturing assembly 20 away from the puncturing portion 21 for driving the puncturing assembly 20 to rotate so that the puncturing portion 21 punctures the explosion-proof valve 11, enabling the puncturing assembly 20 to quickly open the explosion-proof valve 11, effectively improving the pressure relief efficiency, and the opening of the explosion-proof valve 11 is more controllable and efficient, ensuring the rapid release of the internal pressure of the battery cell 300, preventing the occurrence of explosion accidents, and at the same time, the control is more convenient and simple, and the control efficiency can be improved.

[0070] In some embodiments, a part of the housing 200 can be constructed as a plate body 10, which is convenient for manufacturing the housing 200 and is beneficial to reducing the production cost.

[0071] The battery cell 300 according to an embodiment of the present invention includes the housing 200 according to an embodiment of the present invention. Since the housing 200 according to an embodiment of the present invention has the above-mentioned beneficial technical effects, the battery cell 300 according to an embodiment of the present invention, through one end of the puncturing assembly 20 is formed with a puncturing portion 21 for puncturing the explosion-proof valve 11, and the driving mechanism 30 is connected to the end of the puncturing assembly 20 away from the puncturing portion 21 for driving the puncturing assembly 20 to rotate so that the puncturing portion 21 punctures the explosion-proof valve 11, enabling the puncturing assembly 20 to quickly open the explosion-proof valve 11, effectively improving the pressure relief efficiency, and the opening of the explosion-proof valve 11 is more controllable and efficient, ensuring the rapid release of the internal pressure of the battery cell 300, preventing the occurrence of explosion accidents, and at the same time, the control is more convenient and simple, and the control efficiency can be improved.

[0072] In some embodiments, the battery cell 300 can be applied to a vehicle. When the battery cell 300 undergoes thermal runaway, the puncturing assembly 20 can quickly open the explosion-proof valve 11, effectively improving the pressure relief efficiency, preventing the occurrence of explosion accidents, ensuring the use safety of the battery cell 300, and thus ensuring the safety of the vehicle. For example, the vehicle is an electric vehicle.

[0073] The other components and operations of the explosion-proof valve opening assembly 100, the housing 200, and the battery cell 300 according to the embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein.

[0074] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0075] In the description of this specification, the descriptions referring to terms such as "embodiment", "specific embodiment", "example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0076] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. An explosion-proof valve opening assembly, characterized in that: include: A plate body, wherein the plate body is provided with an explosion-proof valve; A puncture assembly, the puncture assembly is rotatably disposed on the plate body, and one end of the puncture assembly is formed with a puncture portion for puncturing the explosion-proof valve; A driving mechanism is disposed on the plate body, and the driving mechanism is connected to an end of the puncturing assembly away from the puncturing portion, and is used to drive the puncturing assembly to rotate so that the puncturing portion punctures the explosion-proof valve.

2. The explosion-proof valve opening assembly according to claim 1, characterized in that: The puncture assembly comprises: A first connecting portion, wherein one end of the first connecting portion is provided with the piercing portion; A second connection part, wherein the second connection part is connected to an end of the first connection part away from the puncture part and the connection is rotatably connected to the plate body, the first connection part and the second connection part form an angle with each other, and the driving mechanism drives the end of the second connection part away from the first connection part to rotate relative to the plate body.

3. The explosion-proof valve opening assembly according to claim 2, characterized in that: The driving mechanism comprises: A driving motor, the driving motor is located at a side of the puncturing assembly where the puncturing portion is provided and is spaced apart, and the driving motor has an output shaft; A connecting line, one end of which is connected to the output shaft and the other end of which is connected to an end of the second connecting part away from the first connecting part.

4. The explosion-proof valve opening assembly according to claim 3, characterized in that: The drive motor is electrically connected to the positive electrode and the negative electrode of the battery cell, and the drive mechanism further comprises: A switch component is connected between the positive electrode or the negative electrode and the drive motor.

5. The explosion-proof valve opening assembly according to claim 4, characterized in that: The switch assembly comprises: A switch body, wherein the switch body is connected between the positive electrode or the negative electrode and the driving motor; A temperature control system, the temperature control system includes a controller and a temperature detection component, the temperature detection component is used to detect the temperature of the battery cell, the controller is connected to the temperature detection component and the switch body, and the controller is used to control the closing of the switch body according to the detection result of the temperature detection component.

6. The explosion-proof valve opening assembly according to claim 5, characterized in that: The temperature control system is electrically connected to the positive electrode and the negative electrode.

7. The explosion-proof valve opening assembly according to claim 2, characterized in that: The puncture assembly also includes: An elastic member is located between the plate body and the first connecting portion to drive the first connecting portion to rotate toward a side away from the explosion-proof valve.

8. The explosion-proof valve opening assembly according to claim 1, characterized in that: The puncture assembly is arranged on the explosion-proof valve.

9. A housing, characterized in that: It comprises an explosion-proof valve opening assembly according to any one of claims 1-8.

10. A battery cell, characterized in that: Comprising a housing according to claim 9.

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