Battery cover plate assembly, battery module and vehicle

Abstract

The utility model relates to a battery cover plate assembly, a battery module and a vehicle, the battery cover plate assembly is used for supporting and connecting a battery cell, the battery cover plate assembly comprises a cover plate body, the cover plate body is provided with an accommodating groove along a first direction, and a limiting piece is arranged in the accommodating groove; the limiting piece is configured to move in the first direction, and the first end of the limiting piece extends out of the containing groove and is used for pressing an acquisition module arranged on the battery cell. The limiting piece is arranged in the accommodating groove of the cover plate body, and the limiting piece moves in the first direction and presses the acquisition module on the battery cell, so that the temperature acquisition module in the acquisition module can be prevented from warping when being connected by adopting a back adhesive pasting mode; therefore, deviation of acquired data of the temperature acquisition module caused by warping is avoided, the measurement accuracy of the temperature acquisition module is improved, and thermal management of the battery is stable in operation and high in safety.

Description

Technical Field

[0001] The present disclosure relates to the technical field of lithium batteries, and in particular, to a battery cover assembly, a battery module and a vehicle. Background Art

[0002] As people pay more and more attention to environmental protection and low carbon, the pace of development of new energy vehicles has also accelerated significantly. The integration of automobiles with related technologies in the fields of energy, transportation, information and communication has accelerated, and electrification, networking and intelligence have become the development trend and trend of the automobile industry. New technologies for new energy vehicles have sprung up like mushrooms after a rain, for example: the application number is CN202110228793.2, the invention name is hybrid power system, hybrid vehicle and control method thereof; the application number is CN202110231482.1, the invention name is hybrid power system, hybrid vehicle and control method thereof, vehicle controller; the application number is CN202110251139.3, the invention name is hybrid power system, hybrid vehicle and control method thereof, vehicle controller; the application number is CN202010609385.7, the invention name is vehicle power generation control method, device and vehicle; all describe hybrid technology based on electricity, which has multiple advantages such as fast, economical, quiet, smooth and green. The application number is CN202311373582.3, and the invention name is vehicle control method, medium and vehicle; the application number is CN202311351004.X, and the invention name is vehicle braking method, brake controller, storage medium and vehicle; the application number is CN202311222836.1, and the invention name is parking method, medium and vehicle; the application number is CN202311164098.X, and the invention name is vehicle control system, method and vehicle; the application number is CN202311170393.6, and the invention name is vehicle control system, control method, controller and vehicle; the application number is CN202211678720.4, and the invention name is vehicle power control method, device, medium, vehicle controller and vehicle; the application number is The application number is CN202211469445.5, and the name of the invention is vehicle and its control method, device, medium, and electronic device; the application number is CN202210182808.0, and the name of the invention is tire pressure identification device and vehicle; the application number is CN202110744962.8, and the name of the invention is electric drive assembly, four-wheel drive system and automobile; the application number is CN202110474242.4, and the name of the invention is steering control method, electronic control unit, system and vehicle for vehicle; the application number is CN202110351399.8, and the name of the invention is braking control method, device, medium and electronic device; all describe a power system with four wheel-side motors independently driven as the core, which greatly improves the safety and power of new energy vehicles.

[0003] In the related art, the battery cover and the collection module are integrated, especially the temperature collection module in the collection module is usually attached to the narrow surface of the battery cell by means of adhesive backing. The adhesive backing method can easily cause the temperature collection module to become detached and warped, thereby making the temperature collection module close to the cold plate, causing the collected temperature to be lower than the actual temperature of the battery cell, resulting in the risk of thermal safety events that cannot be identified and thermal runaway of the battery. Utility Model Content

[0004] The purpose of the present disclosure is to provide a battery cover assembly, a battery pack and a vehicle, wherein the battery cover assembly can prevent the temperature acquisition module from warping, so as to at least partially solve the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned objectives, the present disclosure provides, on one hand, a battery cover assembly for supporting and connecting a battery cell, comprising a cover body, wherein the cover body is provided with a receiving groove along a first direction, wherein a limiting member is provided in the receiving groove, and wherein the limiting member is configured to be movable along the first direction and wherein the first end of the limiting member extends out of the receiving groove to press a collection module disposed on the battery cell.

[0006] Optionally, a first elastic member is provided between the limiting member and the accommodating groove, and the first elastic member is used to provide a pressing force to the limiting member toward the acquisition module.

[0007] Optionally, the battery cover assembly further includes a button mechanism cooperating with the limiting member, for limiting the relative position of the limiting member within the accommodating groove in a first direction.

[0008] Optionally, a snap-fitting portion is provided on the limiting member, and a matching portion that cooperates with the snap-fitting portion is provided on the button mechanism, and the matching portion is configured to be movable along a second direction so that the matching portion cooperates with the snap-fitting portion to limit the limiting member in the accommodating groove, and the first direction and the second direction are perpendicular to each other.

[0009] Optionally, the limiting member further includes a groove extending along the first direction and opening along the third direction, the clamping portion is arranged in the groove, the matching portion extends into the groove and abuts against the clamping portion, and the first direction, the second direction and the third direction are perpendicular to each other.

[0010] Optionally, a side of the clamping portion facing the first end is provided with an inclined surface extending toward the first end.

[0011] Optionally, the limiting member includes a second end arranged opposite to the first end, the first elastic member includes a first spring, and two ends of the first spring are respectively in contact with the second end and an inner wall of the accommodating groove.

[0012] Optionally, the first elastic member further includes a first guide column, the first spring is sleeved on the first guide column, and the first guide column is fixedly connected to the second end.

[0013] Optionally, the cover body is further provided with a stopper, which is arranged away from the first end and extends into the groove along the second direction.

[0014] Optionally, the button mechanism includes a movable member, the matching portion is disposed on the movable member, and the movable member slides a preset distance along the third direction so that the matching portion is separated from the engaging portion.

[0015] Optionally, the button mechanism further comprises a support member connected to the cover body, and the movable member is sleeved on the support member and can slide relative to the support member in a third direction.

[0016] Optionally, a second elastic member is provided between the movable member and the supporting member, and the second elastic member provides elastic force to the movable member in a third direction so that the first side wall of the matching portion abuts against the inner side wall of the groove.

[0017] Optionally, the cover plate body is further provided with a mounting groove connected to the receiving groove, and the mounting groove is used to guide the matching portion to enter the receiving groove and match with the clamping portion.

[0018] Optionally, the mounting groove includes a first mounting segment, a second mounting segment and a third mounting segment, the first mounting segment extends along a third direction and cooperates with the matching portion so that the matching portion and the cover body can move relative to each other, the second mounting segment is connected with the first mounting segment and the third mounting segment respectively, and the second mounting segment is arc-shaped so that the matching portion passing through the first mounting segment enters the accommodating groove through the third mounting segment and cooperates with the clamping portion after the movable part rotates.

[0019] A second aspect of the present disclosure provides a battery module, comprising a battery cell and the above-mentioned battery cover assembly.

[0020] A third aspect of the present disclosure provides a vehicle, comprising the above-mentioned battery module.

[0021] Through the above technical solution, by arranging a limiter in the accommodating groove of the cover body, the limiter moves in the first direction and presses the acquisition module on the battery cell, thereby preventing the temperature acquisition module in the acquisition module from warping when it is connected by adhesive bonding, thereby avoiding deviations in the collected data of the temperature acquisition module due to warping, improving the measurement accuracy of the temperature acquisition module, and making the thermal management of the battery run stably and with high safety.

[0022] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0024] Figure 1 is a schematic diagram of a partial structure of a battery module provided in an exemplary embodiment of the present disclosure from a first angle;

[0025] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0026] Figure 3 is a schematic diagram of a partial structure of a battery cover assembly provided in an exemplary embodiment of the present disclosure from a first angle;

[0027] Figure 4 is a second angle partial structural schematic diagram of a battery cover assembly provided in an exemplary embodiment of the present disclosure;

[0028] Figure 5 is a schematic diagram of an enlarged partial cross-sectional structure of a portion B provided in an exemplary embodiment of the present disclosure;

[0029] Figure 6 It is a schematic diagram of the assembly structure of the limit member and the button mechanism provided in an exemplary embodiment of the present disclosure.

[0030] Description of Reference Numerals

[0031] 1-cover body; 11-accommodating groove; 12-stopper; 13-installation groove; 131-first installation section; 132-second installation section; 133-third installation section; 2-limiting member; 21-first end; 22-groove; 23-clamping part; 24-second end; 25-first elastic member; 26-first guide column; 27-first spring; 3-button mechanism; 31-matching part; 32-support member; 33-movable member; 34-second elastic member; 4-battery cell; 5-collection module; 6-motor connecting component; 7-flexible circuit board. DETAILED DESCRIPTION

[0032] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0033] In the present disclosure, unless otherwise stated, directional words such as "up, down, left, right" are generally defined by the use state of the battery cover assembly. The "first direction" can be specifically referred to as Figure 3The X direction shown in the figure, the “second direction” can be specifically referred to Figure 3 The Y direction is shown in the figure. For details about the “third direction”, please refer to Figure 3 In the Z direction shown, in addition, the terms "first", "second", etc. used in the present disclosure are to distinguish one element from another element, and do not have order and importance. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0034] In the related art, in order to monitor the status of the battery cells, multiple acquisition modules are usually set to monitor the battery cells. For example, the acquisition module may include a voltage acquisition module, a current acquisition module and a temperature acquisition module, wherein the temperature acquisition module is an NTC (Negative Temperature Coefficient thermistor), i.e., a negative temperature coefficient thermistor. The temperature acquisition module is usually attached to the narrow surface of the battery cell 4 by means of glue. The gluing method can easily cause the temperature acquisition module to become detached from the bond and cause warping. The warped temperature acquisition module is close to the cold plate, causing the collected temperature to be about 8°C lower than the actual temperature of the battery cell, thereby causing a deviation in the measurement of the temperature of the battery cell 4, which can easily lead to a thermal safety incident.

[0035] In order to solve the above technical problems, Figure 1-Figure 6 As shown, on one hand, the present disclosure provides a battery cover assembly for supporting and connecting battery cells, including a cover body 1, the cover body 1 is provided with a receiving groove 11 along a first direction, a limit member 2 is provided in the receiving groove 11, the limit member 2 is configured to be able to move along the first direction, and the first end 21 of the limit member 2 extends out of the receiving groove 11, and is used to press the collection module 5 arranged on the battery cell 4.

[0036] Through the above technical solution, by arranging a limiter 2 in the accommodating groove of the cover body 1, the limiter 2 moves in the first direction and presses the collection module 5 on the battery cell 4, thereby preventing the temperature collection module in the collection module 5 from warping when it is connected by adhesive bonding, thereby avoiding deviations in the collection data of the temperature collection module due to warping, improving the measurement accuracy of the temperature collection module, and making the thermal management of the battery run stably and with high safety.

[0037] It should be noted that the above-mentioned limiter 2 can be an injection molded part, and the first end 21 of the limiter 2 can be constructed as a rectangular surface so that the first end 21 can press the collection module 5 on the battery cell 4.

[0038] Optionally, a first elastic member 25 is provided between the stopper 2 and the receiving groove 11, and the first elastic member 25 is used to provide a pressing force to the stopper 2 toward the collection module 5. For example, the stopper 2 may be a rectangular injection molded part, and the receiving groove 11 may be a rectangular channel, so that the first end 21 of the stopper 2 includes a rectangular surface, and the rectangular surface of the first end 21 is used to cooperate with the collection module 5, and a first elastic member 25 in a compressed state is provided between a side surface of the stopper 2 away from the first end 21 and the receiving groove 11, so that the first elastic member 25 can provide elastic force to the stopper 2, so that the stopper 2 can extend out of the receiving groove 11 and press the collection module 5 on the battery cell 4 with the elastic force provided by the first elastic member 25.

[0039] The stopper 2 includes a second end 24 disposed opposite to the first end 21, and the first elastic member 25 includes a first spring 27, and the two ends of the first spring 27 are respectively in contact with the second end 24 and the inner wall of the receiving groove 11. Thus, when the stopper 2 is in the initial state, the first spring 27 is in a compressed state, and the first spring 27 can provide sufficient elastic force toward the stopper 2 in the first direction, so that when the stopper 2 is in the working state, it can extend out of the receiving groove 11 along the first direction under the action of the elastic force and press the collection module 5 on the battery cell 4.

[0040] Of course, in order to reduce costs, in some feasible embodiments, the limit member 2 is constructed to be similar to a rectangular injection molded part, and the rectangular surface of the second end 24 of the limit member 2 can be smaller than the rectangular surface of the first end 21, and the accommodating groove 11 can be constructed as an L-shaped channel to adapt to the first end 21 and the second end 24 of the limit member 2. In this way, the weight of the limit member 2 can be reduced and the depth of the opening of the cover body 1 can be reduced, thereby reducing costs.

[0041] In some other practicable embodiments, in order to guide the first spring 27, the first elastic member 25 further includes a first guide column 26, the first spring 27 is sleeved on the first guide column 26, and the first guide column 26 is fixedly connected to the second end 24. The first guide column 26 can be constructed as an injection-molded cylinder extending in the first direction, the first spring 27 is sleeved on the first guide column 26, the first connection end of the first spring 27 can be fixedly connected to the inner side wall of the accommodating groove 11 in the first direction, and the second connection end of the first spring 27 can be fixedly connected to the second end 24. When the stopper 2 is in the initial state, the first spring 27 is in a compressed state, the length of the first spring 27 in the compressed state is greater than or equal to the length of the first guide column 26 in the first direction, and the first spring 27 can provide sufficient elastic force toward the stopper 2 in the first direction, so that when the stopper 2 is in the working state, it can extend out of the accommodating groove 11 along the first direction under the action of the elastic force and press the acquisition module 5 on the battery cell 4.

[0042] In some practicable embodiments, in order to facilitate limiting the relative position of the limiting member 2 and the containing groove 11 in the first direction, as Figure 3-Figure 6 As shown, the battery cover assembly also includes a button mechanism 3 that cooperates with the limiter 2, and the button mechanism 3 is used to limit the relative position of the limiter 2 in the receiving groove 11 in the first direction. For example, the limiter 2 may include an initial state and a working state, and the button mechanism 3 includes a locked state and an unlocked state, wherein, when the limiter 2 is in the initial state, the limiter 2 can be locked by the button mechanism 3 in the locked state, and the limiter 2 is restricted from moving in the first direction, so that the limiter 2 is disposed in the receiving groove 11 as a whole, and when the limiter 2 is in the working state, that is, the limiter 2 needs to extend from the receiving groove 11, the button mechanism 3 is in the unlocked state, that is, the button mechanism 3 is unlocked from the limiter 2, so that the limiter 2 can extend along the extension direction of the receiving groove 11 and press the collection module 5 on the battery cell 4.

[0043] It can be understood that the above-mentioned method of providing elastic force through the first elastic member 25 so that the limiting member 2 can extend out of the accommodating groove 11 and press the collection module 5 on the battery cell 4 is schematic. In other embodiments, a clamping protrusion can be provided on the limiting member 2, and a corresponding clamping groove can be provided in the accommodating groove 11, so that the limiting member 2 can extend out of the accommodating groove 11 and press the collection module 5 on the battery cell 4 through the cooperation of the clamping protrusion and the clamping groove. For example, the limiting member 2 is provided with two clamping protrusions in the first direction, and the clamping protrusion can be in the third direction. Telescopic upward, the receiving groove 11 is provided with three spaced-apart snap-in grooves in the first direction. In the initial position, the limiter 2 is located in the receiving groove 11 as a whole, and the snap-in protrusion cooperates with the two snap-in grooves located on the inner side, so that the limiter 2 is located in the receiving groove as a whole. In the extended position, the two snap-in protrusions on the limiter 2 can cooperate with the two snap-in grooves on the outer side of the snap-in groove, so that the limiter 2 extends out of the receiving groove 11 and locks and presses the acquisition module 5 on the battery cell 4, wherein the inner side is far from the first end of the limiter 2, and the outer side is close to the first end of the limiter 2. It should be noted that the snap-in protrusion mentioned in this embodiment can be an elastic pin, and the specific structure is not repeated in this disclosure.

[0044] In some practicable embodiments, in order to facilitate limiting the relative position of the limiting member 2 and the containing groove 11 in the first direction, as Figure 3-Figure 6As shown, the battery cover assembly also includes a button mechanism 3 that cooperates with the limiter 2, and the button mechanism 3 is used to limit the relative position of the limiter 2 in the receiving groove 11 in the first direction. For example, the limiter 2 may include an initial state and a working state, and the button mechanism 3 includes a locked state and an unlocked state, wherein, when the limiter 2 is in the initial state, the limiter 2 can be locked by the button mechanism 3 in the locked state, and the limiter 2 is restricted from moving in the first direction, so that the limiter 2 is disposed in the receiving groove 11 as a whole, and when the limiter 2 is in the working state, that is, the limiter 2 needs to extend from the receiving groove 11, the button mechanism 3 is in the unlocked state, that is, the button mechanism 3 is unlocked from the limiter 2, so that the limiter 2 can extend along the extension direction of the receiving groove 11 and press the collection module 5 on the battery cell 4.

[0045] In order to facilitate the button mechanism 3 to limit the movement of the limiter 2 in the first direction, in some practicable ways, the limiter 2 may be provided with a clamping portion 23, and the button mechanism 3 may be provided with a matching portion 31 that matches the clamping portion 23, and the matching portion 31 is configured to be able to move along the second direction so that the matching portion 31 and the clamping portion 23 cooperate to limit the limiter 2 in the receiving groove 11, and the first direction and the second direction are perpendicular to each other. For example, the clamping portion 23 may be a first rectangular block extending along the second direction, and the matching portion 31 may also be a second rectangular block extending along the second direction. When the limiter 2 is in the initial state, the second rectangular block moves along the second direction and contacts the first rectangular block to stop the limiter 2 in the first direction, so that the limiter 2 can be located in the receiving groove 11 as a whole. When the limiter 2 needs to be in the working state, the second rectangular block moves in the opposite direction along the second direction so that the second rectangular block is separated from the first rectangular block, so that the limiter 2 can move along the first direction to extend out of the receiving groove 11 and press the acquisition module 5 on the battery cell 4.

[0046] In order to facilitate the cooperation between the matching portion 31 and the clamping portion 23, in some practicable embodiments, the limiting member 2 further includes a groove 22 extending along the first direction and opening along the third direction. Figure 3 The X direction is shown, and the third direction can be found in Figure 3 In the Z direction shown, the groove 22 can pass through the limit member 2 in the second direction, and the clamping portion 23 of the limit member 2 is arranged in the groove 22, and the matching portion 31 extends into the groove 22 and abuts against the clamping portion 23. Therefore, the setting of the groove 22 can not only provide space for the clamping portion 23 and the matching portion 31 to cooperate, so that the clamping portion 23 and the matching portion 31 cooperate to facilitate limiting the relative position of the limit member 2 and the accommodating groove 11 in the first direction, but also can reduce the weight of the limit member 2, reduce the cost and facilitate pressing the collection module 5 on the battery cell 4 under the elastic force of the first elastic member 25.

[0047] Optionally, in order to facilitate the position-limiting member 2 to be restored from the working state to the switching state, in some practicable embodiments, a side of the matching portion 31 facing the first end 21 is provided with an inclined surface extending toward the first end 21, so that the projection of the matching portion 31 in the second direction is trapezoidal. In this way, when the position-limiting member 2 is in the initial state, the matching portion 31 moves along the third direction, and the inclined surface of the matching portion 31 abuts against the clamping portion 23, thereby limiting the movement of the position-limiting member 2 along the first direction through the matching portion 31, so that the position-limiting member 2 is located as a whole in the accommodating groove 11. When the position-limiting member 2 is in the initial state, the matching portion 31 moves along the third direction, and the inclined surface of the matching portion 31 abuts against the clamping portion 23. 2 is in the working state, the matching portion 31 continues to move along the third direction to separate the matching portion 31 from the clamping portion 23, so that the limiting member 2 can extend out of the accommodating groove 11 along the first direction and press the acquisition module 5 on the battery cell 4, and when the limiting member 2 needs to be restored from the working state to the initial state, the limiting member 2 can be pushed in the reverse direction to move toward the accommodating groove 11, so that the limiting member 2 contacts and crosses the inclined surface first so that the matching portion 31 abuts against the limiting member 2 again, so that the limiting member 2 moves as a whole into the accommodating groove 11 to restore the initial state.

[0048] In order to prevent the limit member 2 from escaping from the accommodating groove 11, in some feasible embodiments, the cover body 1 is also provided with a stop member 12, which is arranged away from the first end 21 and extends into the groove 22 along the second direction. The stop member 12 can also be constructed as a rectangular block. The stop member 12 is deeply inserted into the groove 22 to prevent the limit member 2 from completely extending out of the accommodating groove 11 along the first direction.

[0049] In order to facilitate the matching portion 31 to move in the second direction and match with the clamping portion 23, in some practicable embodiments, the button mechanism 3 includes a movable member 33, the matching portion 31 is arranged on the movable member 33, and the movable member 33 slides a preset distance along the third direction so that the matching portion 31 is separated from the clamping portion 23. When the movable member 33 slides a preset distance along the third direction to stop the locking position, the matching portion 31 is clamped with the clamping portion 23, so that the button mechanism 3 locks the limiting member 2 to move in the first direction and is clamped in the accommodating groove 11. When the movable member 33 slides in the opposite direction to disengage from the locking position, the button mechanism 3 is unlocked from the limiting member 2, and the limiting member 2 can extend along the accommodating groove 11 and press the collection module 5 on the battery cell 4.

[0050] In order to facilitate the sliding of the movable member 33 in the third direction, in some practicable embodiments, the button mechanism 3 further includes a support member 32 connected to the cover body 1, and the movable member 33 is sleeved on the support member 32 and can slide relative to the support member 32 in the third direction. For example, the support member 32 can be constructed as an injection-molded cylinder, the movable member 33 can be constructed as a cylindrical body sleeved on the injection-molded cylinder, the bottom end of the support member 32 can be fixedly connected to the cover body 1, the movable member 33 is sleeved on the support member 32 and has a locking position, when the movable member 33 slides along the third direction for a preset distance to stop the locking position, the matching portion 31 is engaged with the clamping portion 23, so that the button mechanism 3 locks the limit member 2 to move in the first direction and is clamped in the accommodating groove 11, when the movable member 33 slides in the reverse direction to leave the locking position, the button mechanism 3 is unlocked from the limit member 2, and the limit member 2 can extend along the accommodating groove 11 and press the collection module 5 on the battery cell 4.

[0051] In order to facilitate the installation of the matching portion 31 and the matching and snapping with the snap-on portion 23, in some practicable embodiments, a mounting groove 13 connected to the accommodating groove 11 is further provided on the cover body 1. The mounting groove 13 provides an installation space for the matching portion and the movable member 33, so that the mounting groove 13 can guide the matching portion 31 into the accommodating groove 11 to match with the snap-on portion 23. Specifically, the mounting groove 13 is provided on the cover body 1 and includes a first mounting segment 131, a second mounting segment 132 and a third mounting segment 133. The first mounting segment 131 extends along the third direction and includes a mounting groove and a mounting channel. The mounting groove is used to provide an installation space for placing the support member 32 and the movable member 33. The mounting channel is used to provide an installation space for the matching portion 31. Thus, the initial assembly of the button mechanism 3 and the cover body 1 can be achieved through the first mounting segment 131. The second mounting segment 132 is respectively connected to the first mounting segment 131 and the third mounting segment 133. The second mounting segment 132 is arc-shaped so as to pass through the first mounting segment 131. The matching portion 31 rotates with the movable member 33, and the third mounting section 133 extends along the third direction and communicates with the accommodating groove 11. At this time, the matching portion 31 after passing through the second mounting section 132 enters the accommodating groove 11 through the third mounting section 133, and then the limiting member 2 is installed in the accommodating groove 11. At this time, the position of the matching portion 31 in the third direction is lower than the clamping portion 23 in the limiting member 2, and the matching portion 31 is moved in the reverse direction so that the matching portion 31 abuts against the inner side wall of the groove 22 of the limiting member 2 and the clamping portion 23 abuts against the inclined surface of the matching portion 31. In this way, the limiting member 2 is arranged as a whole in the accommodating groove 11 through the matching portion 31 and the clamping portion 23.

[0052] In order to facilitate the matching portion 31 to move along the third direction and abut against the inner side wall of the groove 22, in some practicable embodiments, a second elastic member 34 is provided between the movable member 33 and the support member 32. The second elastic member 34 can be a second spring sleeved on the outer periphery of the support member 32. The movable member 33 is provided with an inner cavity for accommodating the second spring. The second spring provides elastic force to the movable member 33 in the third direction so that when the matching portion 31 is in the locked state, the first side wall of the matching portion 31 abuts against the inner side wall of the groove 22. The second side wall of the matching portion 31 that is perpendicular to the first side wall abuts against the inclined surface of the snap-connecting portion 23. In this way, when the button mechanism 3 needs to be unlocked, the assembled movable part 33 is pressed to separate the matching portion 31 from the snap-connecting portion 23 in the limiting member 2. At this time, the limiting member 2 can extend out of the accommodating groove 11 and press the collection module 5 of the battery cell 4. When the button mechanism 3 needs to be locked, the limiting member 2 is pushed back into the accommodating groove 11, and the snap-connecting portion 23 of the limiting member 2 moves in the opposite direction to cross the inclined surface of the matching portion 31.

[0053] The second aspect of the present disclosure provides a battery module, including a battery cell and the above-mentioned battery cover assembly. The battery cover assembly is assembled with the battery cell 4, the motor connection component 6, and the flexible circuit board 7 to form a battery module, wherein the battery cell 4, the motor connection component 6, and the flexible circuit board 7 are all existing components, and their specific structures are not repeated here. The flexible circuit board 7 is fixed to the front cover of the battery cover by a positioning plate, and is attached to the battery cover assembly, the motor connection component 6, and the battery cell by adhesive. The acquisition module 5 can be installed on the flexible circuit board, and the temperature acquisition module of the acquisition module 5 is located in front of the battery cell 4. The limiter 2 extends out of the accommodating groove 11 to press the temperature acquisition module, thereby preventing the temperature acquisition module from warping. In this way, the temperature of the battery cell 4 can be accurately measured, thereby facilitating the thermal management of the battery and improving the safety of the battery. It can be understood that the above-mentioned battery module includes all the beneficial effects of the above-mentioned battery cover assembly.

[0054] The third aspect of the present disclosure provides a vehicle, including the above-mentioned battery module. The vehicle may include a pure electric vehicle or a hybrid vehicle including the above-mentioned battery module. The vehicle includes the above-mentioned battery module, so that the temperature of the measured battery cell can be increased, which facilitates accurate management of the thermal management of the battery module, thereby improving the safety of the battery and the safety of the vehicle.

[0055] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0056] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0057] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A battery cover assembly, used to support and connect battery cells, characterized in that: It includes a cover body, which is provided with a receiving groove along a first direction, a limiting member is provided in the receiving groove, and the limiting member is configured to be movable along the first direction, and the first end of the limiting member extends out of the receiving groove to press the collection module arranged on the battery cell.

2. The battery cover assembly according to claim 1, characterized in that: A first elastic member is provided between the limiting member and the accommodating groove, and the first elastic member is used to provide a pressing force to the limiting member toward the acquisition module.

3. The battery cover assembly according to claim 1 or 2, characterized in that: The battery cover assembly further includes a button mechanism cooperating with the limiting member and configured to limit the relative position of the limiting member in the accommodating groove in a first direction.

4. The battery cover assembly according to claim 3, characterized in that: The limiting member is provided with a snap-fitting portion, and the button mechanism is provided with a matching portion that matches with the snap-fitting portion. The matching portion is configured to be movable along a second direction so that the matching portion and the snap-fitting portion cooperate to limit the limiting member in the accommodating groove, and the first direction and the second direction are perpendicular to each other.

5. The battery cover assembly according to claim 4, characterized in that: The limiting member also includes a groove extending along the first direction and opening along the third direction, the clamping portion is arranged in the groove, the matching portion extends into the groove and abuts against the clamping portion, and the first direction, the second direction and the third direction are perpendicular to each other.

6. The battery cover assembly according to claim 5, characterized in that: A side of the matching portion facing the first end is provided with an inclined surface extending toward the first end.

7. The battery cover assembly according to claim 2, characterized in that: The limiting member includes a second end arranged opposite to the first end, the first elastic member includes a first spring, and two ends of the first spring are respectively in contact with the second end and the inner wall of the accommodating groove.

8. The battery cover assembly according to claim 7, characterized in that: The first elastic member further includes a first guide column, the first spring is sleeved on the first guide column, and the first guide column is fixedly connected to the second end.

9. The battery cover assembly according to claim 5, characterized in that: The cover body is further provided with a stopper, which is arranged away from the first end and extends into the groove along the second direction.

10. The battery cover assembly according to claim 4, characterized in that: The button mechanism comprises a movable part, the matching part is arranged on the movable part, and the movable part slides a preset distance along the third direction so that the matching part is separated from the clamping part.

11. The battery cover assembly according to claim 10, characterized in that: The button mechanism further comprises a support member connected to the cover body, and the movable member is sleeved on the support member and can slide relative to the support member in a third direction.

12. The battery cover assembly according to claim 11, characterized in that: A second elastic member is provided between the movable member and the supporting member, and the second elastic member provides elastic force to the movable member in a third direction so that the first side wall of the matching portion abuts against the inner side wall of the groove.

13. The battery cover assembly according to claim 12, characterized in that: The cover plate body is also provided with an installation groove which is in communication with the receiving groove, and the installation groove is used to guide the matching portion to enter the receiving groove and match with the clamping portion.

14. The battery cover assembly according to claim 13, characterized in that: The mounting groove includes a first mounting section, a second mounting section and a third mounting section, the first mounting section extends along a third direction and cooperates with the matching portion so that the matching portion and the cover body can move relative to each other, the second mounting section is connected with the first mounting section and the third mounting section respectively, and the second mounting section is arc-shaped so that the matching portion passing through the first mounting section enters the accommodating groove through the third mounting section after the movable part rotates and cooperates with the clamping portion.

15. A battery module, characterized in that: It comprises a battery cell, a collection module and a battery cover assembly as described in any one of claims 1 to 14.

16. A vehicle, characterized in that: Comprising the battery module as claimed in claim 15.

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