Protective cover, protective cover assembly, battery device and vehicle

Abstract

A protective cover, a protective cover assembly, a battery device and a vehicle, the protective cover is an insulating heat conducting member, the protective cover comprises a first surface and a second surface, and the first surface is suitable for being connected with a power distribution module of the battery device; the second surface is suitable for being connected with a heat dissipation component of the battery device. The protective cover is arranged as an insulating heat conduction component, the first surface is suitable for being connected with the power distribution module of the battery device, the second surface is suitable for being connected with the heat dissipation component of the battery device, heat generated by the power distribution module can be conducted to the heat dissipation component through the protective cover for heat dissipation, and heat discharge of the power distribution module is accelerated; therefore, the power distribution module is in a normal working temperature range, normal performance of the power distribution module is guaranteed, connected cells are not affected well, charging efficiency of the whole vehicle is guaranteed, and safety risks are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery heat dissipation, and in particular to a protective cover, a protective cover assembly, a battery device and a vehicle. Background Art

[0002] With the accelerated implementation of electrification in the automotive industry, users' acceptance of electric vehicles continues to increase, but charging issues are still the primary factor affecting users' purchase of electric vehicles. Fast charging technology can further shorten the charging time, improve charging efficiency, and greatly alleviate users' anxiety about using cars. It is an important development direction of electric vehicle charging technology. The core of fast charging is to increase the charging power of the entire vehicle. There are three main ways to achieve high-power charging: 1. Maintain the current at the general market level and increase the voltage; 2. Maintain the voltage at the current mainstream voltage level in the market and increase the current; 3. Appropriately increase the voltage and current at the same time.

[0003] There are many electrical components in the high-voltage distribution module of electric vehicles. There is resistance between these components and their contact points. When high-power fast charging is used, these components will generate a lot of heat during the transmission of high current, causing the temperature to rise rapidly. In particular, the output position of the distribution module is the largest heat-generating component and heat accumulation point, with a maximum temperature of up to 120°C.

[0004] Most of the current distribution modules do not have special treatment for heat dissipation, and basically dissipate heat through natural cooling. However, due to the design requirements of the dustproof and waterproof sealing of the box, the flow of air is hindered, and the heat exchange with the outside world is slow. The heating components cannot be cooled down in a timely and effective manner during the fast charging process. The heat continues to accumulate, causing excessively high temperatures, which will lead to a decline in the performance of the distribution components and will also affect the connected battery cells, thereby affecting the charging efficiency of the entire vehicle and even posing safety risks. Utility Model Content

[0005] The utility model aims to provide a protective cover, a protective cover assembly, a battery device and a vehicle, so as to solve the problem that the heat of the power distribution module is difficult to discharge during fast charging.

[0006] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:

[0007] In a first aspect, an embodiment of the utility model provides a protective cover, which is an insulating heat-conducting component, and includes: a first surface suitable for connecting to a power distribution module of a battery device; and a second surface suitable for connecting to a heat dissipation component of the battery device.

[0008] In one embodiment, the first surface and the second surface are arranged opposite to each other.

[0009] In one embodiment, the protective cover includes a main body, a first contact portion and a second contact portion, the first contact portion and the second contact portion are arranged opposite to each other, the main body connects the first contact portion and the second contact portion, the first contact portion is suitable for connecting to the first connecting piece of the distribution module, the second contact portion is suitable for connecting to the second connecting piece of the distribution module, the first contact portion and the second contact portion both have the first surface, and the main body, the first contact portion and the second contact portion have the second surface.

[0010] In one embodiment, the first contact portion and the second contact portion protrude from a first side surface of the main body.

[0011] In one embodiment, the protection cover further includes an extension portion, the extension portion is connected to a second side surface of the main body portion, the second side surface is opposite to the first side surface, and the extension portion has the second surface.

[0012] In one embodiment, the protective cover further includes a mounting portion, the mounting portion is connected to the extending portion, and the mounting portion is suitable for being connected and fixed to the battery device.

[0013] In one embodiment, the protective cover is an integrated structure.

[0014] In a second aspect, the utility model further provides a protective cover assembly, comprising the protective cover described in any one of the various embodiments of the first aspect.

[0015] In one embodiment, it further comprises thermally conductive adhesive, and the first surface and / or the second surface of the protective cover is provided with the thermally conductive adhesive.

[0016] In one embodiment, the protective cover includes a main board and a frame, the main board has the first surface and the second surface, the frame is connected to the four edges of the first surface, the main board and the frame together form a storage groove, the first surface is provided with the thermal conductive adhesive, and the thermal conductive adhesive is accommodated in the storage groove.

[0017] In a third aspect, the utility model further provides a battery device, comprising: a power distribution module; a heat dissipation component; and a protective cover as described in any one of the various embodiments of the first aspect, wherein the first surface is connected to the power distribution module, and the second surface is connected to the heat dissipation component; or, a protective cover assembly as described in any one of the various embodiments of the second aspect.

[0018] In one embodiment, the first surface is connected to the power distribution module via thermally conductive adhesive, and / or the second surface is connected to the heat dissipation component via thermally conductive adhesive.

[0019] In one embodiment, the heat dissipation component is any one of a tray, an upper cover, and a cold plate.

[0020] In a fourth aspect, the present invention further provides a vehicle, comprising the battery device described in any one of the various embodiments of the third aspect.

[0021] By setting the protective cover as an insulating heat-conducting component, and the first surface being suitable for connection with the distribution module of the battery device, and the second surface being suitable for connection with the heat dissipation component of the battery device, the heat generated by the distribution module can be conducted to the heat dissipation component through the protective cover for heat dissipation, thereby accelerating the heat discharge of the distribution module, making the distribution module within the normal operating temperature range, ensuring its normal performance, and not affecting the connected battery cells, thereby ensuring the charging efficiency of the entire vehicle and reducing safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 is an assembly diagram of a power distribution module and a protective cover of an embodiment;

[0024] Figure 2 is an exploded view of a power distribution module and a protective cover of an embodiment;

[0025] Figure 3 is a perspective view of a protective cover assembly according to an embodiment.

[0026] Description of reference numerals:

[0027] 10-power distribution module, 11-first connecting piece, 12-second connecting piece, 13-connecting bracket;

[0028] 20-protective cover, 201-first surface, 202-second surface, 203-first side surface, 204-second side surface, 21-main body, 22-first contact portion, 23-second contact portion, 24-extension portion, 25-installation portion, 26-main board, 27-frame;

[0029] 30-Thermal conductive adhesive. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0032] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.

[0033] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0034] Please refer to Figure 1 and Figure 2 The embodiment of the utility model provides a vehicle, including the battery device in the embodiment of the present application. The vehicle is an electric vehicle, which can be a pure electric vehicle, a plug-in hybrid electric vehicle, an extended-range hybrid electric vehicle, etc., without limitation. The battery device in the embodiment of the utility model can be fast charged, quickly replenish energy, and reduce charging time.

[0035] Please refer to Figure 1 and Figure 2 An embodiment of the utility model provides a battery device, including a power distribution module 10, a heat dissipation component (not shown) and a protective cover 20 of an embodiment of the utility model.

[0036] Among them, the battery device can be applied to electric vehicles, and the battery device can be fast charged.

[0037] The distribution module 10 may specifically be a high-voltage distribution module 10, which mainly includes electrical components such as main positive and negative contactors, pre-charging relays, pre-charging resistors, shunts, fuses and copper bars. There is resistance between these components themselves and between their contact points. When high-power fast charging is performed, these components will generate a lot of heat during the transmission of high current, causing the temperature to rise rapidly. In particular, the position of the contactor output, as the largest heat-generating component and heat accumulation point, the maximum temperature can reach 120°C. The distribution module 10 is electrically connected to the battery cell for high-current charging of the battery cell to achieve a fast charging function. Of course, the battery cell can also be discharged through the distribution module 10, and the discharge can be conventional current and conventional voltage discharge without restriction.

[0038] The heat dissipation component can be any structure on the battery device that can accelerate heat dissipation, without limitation.

[0039] Optionally, the heat dissipation component is any one of a tray (not shown), an upper cover (not shown), and a cold plate (not shown).

[0040] The tray may generally include a bottom plate and side beams connected to the bottom plate, and the tray encloses a receiving space, and the receiving space contains the battery cells and the power distribution module 10. The tray may be an integrated or assembled whole, and the tray is made of aluminum alloy or iron alloy, which is a good conductor of heat and can exchange heat with the external air to achieve heat dissipation.

[0041] The upper cover is arranged on the side beam and opposite to the bottom plate to close the accommodation space. The upper cover is made of aluminum alloy or iron alloy, which is a good conductor of heat and can exchange heat with the external air to achieve heat dissipation.

[0042] The cold plate can be a direct cooling plate or a liquid cooling plate. Both the direct cooling plate and the liquid cooling plate have flow channels inside. The flow channels of the direct cooling plate are filled with refrigerant, while the flow channels of the liquid cooling plate are filled with coolant. The cold plate can be set at any position in the storage space of the bottom plate, side beam, upper cover or tray without restriction. The refrigerant or coolant flowing in the cold plate can take away the heat of the cold plate to achieve heat dissipation.

[0043] The protection cover 20 includes a first surface 201 and a second surface 202 . The first surface 201 is connected to the power distribution module 10 , and the second surface 202 is connected to the heat dissipation component.

[0044] The protective cover 20 is an insulating heat-conducting component, and the specific position and shape of the first surface 201 and the second surface 202 are not limited. The heat of the distribution module 10 can be transferred to the heat dissipation component through the protective cover 20, thereby achieving rapid heat conduction and preventing the temperature of the distribution module 10 from being too high. At the same time, the protective cover 20 can play an electrical insulating role to prevent the distribution module 10 from being electrically connected to the heat dissipation component and causing an electrical short circuit.

[0045] In another embodiment, please refer to Figure 1 and Figure 2 An embodiment of the utility model provides a battery device, including a power distribution module 10, a heat dissipation component and a protective cover assembly of an embodiment of the utility model.

[0046] The power distribution module 10 and the heat dissipation component in this embodiment are basically the same as those in the battery device in the previous embodiment, except that a protective cover assembly is used in the embodiment of the utility model.

[0047] The protective cover assembly includes the aforementioned protective cover 20, and may also include any other feasible structure that can improve the thermal conductivity performance, without limitation.

[0048] In one embodiment, the protective cover assembly further includes a thermally conductive adhesive 30 , and the first surface 201 of the protective cover 20 is connected to the power distribution module 10 via the thermally conductive adhesive 30 , and / or the second surface 202 of the protective cover 20 is connected to the heat dissipation component via the thermally conductive adhesive 30 .

[0049] That is to say, the first surface 201 of the protective cover 20 can be directly connected to the power distribution module 10 or connected to the power distribution module 10 through the thermal conductive adhesive 30 , and the second surface 202 can be directly connected to the heat dissipation component or connected to the heat dissipation component through the thermal conductive adhesive 30 .

[0050] The thermal conductive adhesive 30 is a heat-conducting adhesive. The thermal conductive adhesive 30 can conduct heat and has a bonding and fixing function, thereby improving the connection stability between the protective cover 20 and the power distribution module 10 and / or the heat dissipation component.

[0051] The protective cover 20 of the embodiment of the utility model is described in detail below.

[0052] Please refer to Figures 1 to 3 The embodiment of the utility model provides a protective cover 20, which is an insulating heat-conducting component. The material can be inorganic compounds, high molecular polymers, etc. Specifically, the protective cover 20 can be ceramic-based heat-conducting insulating materials such as aluminum nitride ceramics and alumina ceramics, high thermal conductivity epoxy resins, high thermal conductivity silicone rubbers, etc., without limitation. The protective cover 20 can withstand high temperatures and has a certain structural strength.

[0053] The protective cover 20 includes a first surface 201 and a second surface 202. The first surface 201 is suitable for connecting to the distribution module 10 of the battery device, and the second surface 202 is suitable for connecting to the heat dissipation component of the battery device. Specifically, the distribution module 10 and the heat dissipation component can refer to the above description, which will not be repeated here. The first surface 201 and the second surface 202 can be any two surfaces on the protective cover 20, and the two surfaces can be any feasible surfaces such as planes and curved surfaces without limitation. The first surface 201 can be connected to the heat-generating position on the distribution module 10, including but not limited to the main positive and negative contactors, pre-charging relays, pre-charging resistors, shunts, fuses and copper busbars. The second surface 202 can be connected to any heat-dissipating position of the heat dissipation component, including but not limited to any one of a tray, an upper cover, and a cold plate.

[0054] By setting the protective cover 20 as an insulating heat-conducting component, and the first surface 201 is suitable for connecting with the distribution module 10 of the battery device, and the second surface 202 is suitable for connecting with the heat dissipation component of the battery device, the heat generated by the distribution module 10 can be transferred to the heat dissipation component through the protective cover 20 for heat dissipation, accelerating the heat discharge of the distribution module 10, so that the distribution module 10 is in the normal working temperature range, ensuring its normal performance, and not affecting the connected battery cells, ensuring the charging efficiency of the whole vehicle, and reducing safety risks. In addition, the protective cover 20 is made of insulating material to ensure electrical insulation performance, avoiding abnormal electrical connection between the distribution module 10 and the heat dissipation component.

[0055] Optionally, the first surface 201 and the second surface 202 are disposed opposite to each other. The first surface 201 and the second surface 202 are disposed opposite to each other, so that when heat is transferred from the first surface 201 to the second surface 202, the distance of the path through which heat passes at each position is roughly equal and short, and the area of ​​heat transfer is large, which is conducive to the rapid extraction of heat. Optionally, the first surface 201 and the second surface 202 are disposed opposite to each other in the thickness direction of the protective cover 20, so that the distance for heat to be transferred from the first surface 201 to the second surface 202 is short, which is conducive to rapid heat conduction.

[0056] In one embodiment, reference Figures 1 to 3 The protective cover 20 includes a main body 21, a first contact portion 22, and a second contact portion 23. The first contact portion 22 and the second contact portion 23 are arranged opposite to each other, the main body 21 connects the first contact portion 22 and the second contact portion 23, the first contact portion 22 is suitable for connecting with the first connector 11 of the power distribution module 10, and the second contact portion 23 is suitable for connecting with the second connector 12 of the power distribution module 10. The first contact portion 22 and the second contact portion 23 both have a first surface 201, and the main body 21, the first contact portion 22, and the second contact portion 23 have a second surface 202.

[0057] The polarity of the first connector 11 and the second connector 12 of the distribution module 10 are different, and insulation must be ensured between the two copper busbars. The first connector 11 and the second connector 12 are respectively used to electrically connect to the external charging circuit, and can be specifically connected by connectors, etc., without limitation. The first connector 11 and the second connector 12 are exposed to the distribution module 10 to facilitate electrical connection. Compared with other positions of the distribution module 10, the first connector 11 and the second connector 12 are the positions where the distribution module 10 outputs, which are the largest heat-generating components and heat accumulation points, with a maximum temperature of up to 120°C. The first connector 11 and the second connector 12 can specifically be copper busbars.

[0058] In this embodiment, the first contact portion 22 is connected to the first connector 11, and the second contact portion 23 is connected to the second connector 12. The heat of the first connector 11 is transferred to the first contact portion 22, and the heat of the second connector 12 is transferred to the second contact portion 23. After that, the heat of the first contact portion 22 and the second contact portion 23 can also be transferred to the main body 21. Since the main body 21, the first contact portion 22 and the second contact portion 23 all have a second surface 202, they can be connected to the heat dissipation component, so that the heat of the main body 21, the first contact portion 22 and the second contact portion 23 can be directly transferred to the heat dissipation component. On the one hand, the main body 21 connects the first contact portion 22 and the second contact portion 23, so that the first contact portion 22 and the second contact portion 23 form a whole through the connection of the main body 21, which is convenient for transportation and installation. On the other hand, compared with the heat transfer only through the first contact portion 22 and the second contact portion 23, the main body 21 is provided to increase the heat transfer area, and also increase the contact area with the heat dissipation component, which can accelerate the heat dissipation speed.

[0059] Optionally, the protective cover 20 is in the shape of a plate, and the main body 21, the first contact part 22 and the second contact part 23 are three small plate-shaped structures, which are connected to form a large plate structure. The main body 21 may also have a first surface 201, and the first surface 201 and the second surface 202 may both be planes.

[0060] Alternatively, the protective cover 20 may be in other shapes, and the shapes of the main body 21, the first contact portion 22 and the second contact portion 23 may be set as needed. The first surface 201 and the second surface 202 may also be non-planar, such as curved surfaces or stepped surfaces, etc., without limitation.

[0061] Optionally, the first contact portion 22 and the second contact portion 23 protrude from the first side surface 203 of the main body 21. The first side surface 203 may be connected to the first surface 201 and the second surface 202, or may not be connected to the first surface 201 and the second surface 202. In this way, the main body 21, the first contact portion 22, and the second contact portion 23 as a whole roughly constitute a "concave" structure. On the basis of satisfying the connection between the first contact portion 22 and the first connector 11, and the connection between the second contact portion 23 and the second connector 12, the main body 21 avoids the position to avoid interference between the main body 21 and the power distribution module 10, which is beneficial to the arrangement of components and the effective use of space.

[0062] Optional, reference Figure 2 The first connector 11 and the second connector 12 can be arranged on a connecting bracket 13, which is made of insulating material and is used to support the first connector 11 and the second connector 12. The first connector 11 and the second connector 12 can also be respectively covered with connecting sheets to facilitate connection.

[0063] In one embodiment, reference Figures 1 to 3 The protection cover 20 further includes an extension portion 24 , which is connected to a second side surface 204 of the main body 21 . The second side surface 204 is opposite to the first side surface 203 , and the extension portion 24 has a second surface 202 .

[0064] The extension portion 24 can be connected to the middle area of ​​the main body 21 or to other positions without limitation. The extension portion 24 has a second surface 202, which can increase the contact area with the heat dissipation component and improve the heat dissipation effect.

[0065] In one embodiment, reference Figures 1 to 3 The protective cover 20 further includes a mounting portion 25 , which is connected to the extending portion 24 , and is suitable for being connected and fixed to the battery device.

[0066] The mounting portion 25 may be any feasible structure, and is used to be connected and fixed to the battery device by any feasible means such as snap connection, riveting, bonding, screw connection, etc. For example, Figure 3 As shown, the mounting portion 25 is a buckle, and there are multiple mounting portions 25, which are arranged at intervals on the extension portion 24, and the multiple mounting portions 25 are used to be clamped with the clamping structure suitable for fixing the battery device. In this way, the protective cover 20 and the battery device are connected and fixed to form a whole, which is convenient for improving stability.

[0067] Optional, reference Figures 1 to 3The protective cover 20 includes a main board 26 and a frame 27. The main board 26 has a first surface 201 and a second surface 202. The frame 27 is connected to the four edges of the first surface 201. The main board 26 and the frame 27 are enclosed together to form a storage groove, which can be used to accommodate at least one of a copper busbar, a thermal buffer pad (not shown), a thermal adhesive 30, etc. The heat of the power distribution module 10 is transferred to the second surface 202 through the first surface 201 of the main board 26. It can be directly transferred to the copper busbar directly arranged on the second surface 202, or first transferred to the thermal buffer pad and then to the copper busbar connected to the thermal buffer pad, or first transferred to the thermal buffer pad and then to the thermal adhesive 30 connected to the thermal buffer pad, and then to the copper busbar connected to the thermal adhesive 30, or first transferred to the thermal adhesive 30 connected to the second surface 202 and then to the copper busbar connected to the thermal adhesive 30, all of which are not limited.

[0068] refer to Figure 3 The main board 26 can be roughly a flat plate, and the main board 26 and the frame 27 can be an integral structure formed in one piece. The frame 27 extends along the four edges of the main board 26 on the first surface 201 and is connected end to end. The frame 27 protrudes from the first surface 201 of the main board 26. The frame 27 is a structure in which multiple plates are connected in sequence, and each plate of the frame 27 corresponds to an edge of the main board 26. The heights of the plates of the frame 27 protruding from the first surface 201 can be equal or unequal, and there is no restriction.

[0069] The mainboard 26 can be configured in a corresponding shape as required, and the corresponding frame 27 can also be configured in a corresponding shape, and no further limitation is given to the specific embodiment. In the embodiment with the mounting portion 25, the mounting portion 25 can be directly connected to the first surface 201 of the mainboard 26, or can be connected to an end of the frame 27 away from the mainboard 26.

[0070] For the embodiment in which the protective cover 20 is a flat plate structure, the aforementioned main body portion 21, first contact portion 22, second contact portion 23 and extension portion 24 are each a small flat plate, which are connected and together constitute a whole flat plate, and the mounting portion 25 is connected to the second surface 202 of the small flat plate of the extension portion 24.

[0071] For the embodiment in which the protective cover 20 includes a main board 26 and a frame 27, the aforementioned main body 21, first contact portion 22, second contact portion 23 and extension portion 24 are each a small flat plate of the main board 26 and a part of the structure of the frame 27, and they are connected and together constitute a whole main board 26 and a whole frame 27 connected end to end, and the first surface 201 is the surface of the main board 26.

[0072] Optionally, the protective cover 20 is an integrated structure. That is, the main board 26 and the frame 27 are an integrated structure. The main body 21, the first contact portion 22, the second contact portion 23, the extension portion 24 and the mounting portion 25 are also an integrated structure. The integrated structure can be manufactured using any feasible process, such as injection molding process, machining process, etc., without limitation. The protective cover 20 with an integrated structure has high structural strength, low manufacturing difficulty, and does not require additional connection structure.

[0073] In one embodiment, please refer to Figures 1 to 3 The embodiment of the utility model provides a protective cover assembly, including a thermal conductive adhesive 30 and a protective cover 20 in the embodiment of the utility model, and the first surface 201 and / or the second surface 202 of the protective cover 20 is provided with the thermal conductive adhesive 30.

[0074] The thermally conductive adhesive 30 can be specifically ultra-high temperature thermally conductive adhesive 30, silicone thermally conductive adhesive 30, epoxy resin AB adhesive, polyurethane adhesive, polyurethane thermally conductive and electrically conductive adhesive, thermally conductive silicone grease, etc., without limitation. The thermally conductive adhesive 30 is a good conductor of heat and can conduct heat quickly. The thermally conductive adhesive 30 also has good adhesive properties, which can prevent the protective cover 20 from directly and rigidly contacting the distribution module 10 and / or the heat dissipation component, can fill the gap between the protective cover 20 and the distribution module 10 and / or the heat dissipation component, can form a complete heat conduction path from the distribution module 10 to the heat dissipation component, and improve the stability of the connection.

[0075] Taking the first surface 201 and the second surface 202 each provided with a thermal conductive adhesive 30 as an example, the heat of the distribution module 10 is transferred to the protective cover 20 through the thermal conductive adhesive 30, and then conducted to the heat dissipation component through the thermal conductive adhesive 30. The thermal conductive adhesive 30 also has good adhesive fixing performance, which can make the distribution module 10 and the protective cover 20 stably connected, and the protective cover 20 and the heat dissipation component stably connected, so that the protective cover 20 can better conduct heat. In addition, if there is no thermal conductive adhesive 30, there may be a gap between the first surface 201 and the distribution module 10, resulting in a small contact area, and there is a gap between the second surface 202 and the heat dissipation component, resulting in a small contact area. By providing the thermal conductive adhesive 30, the contact area between the first surface 201 and the distribution module 10 can be increased, and the contact area between the second surface 202 and the heat dissipation component can be increased, thereby increasing the heat conduction area and accelerating heat dissipation.

[0076] It is understandable that the thermal conductive adhesive 30 may be disposed on only one of the first surface 201 and the second surface 202 , or may be disposed on both surfaces, without limitation.

[0077] Taking the thermal conductive adhesive 30 connected to the first connecting member 11 as an example, the thermal conductive adhesive 30 may be multiple pieces, and the heights of the multiple pieces of thermal conductive adhesive 30 (i.e., the heights of the protrusions relative to the first surface 201) may be the same or different. The multiple pieces of thermal conductive adhesive 30 may contact different parts of the first connecting member 11, so that each part of the first connecting member 11 can conduct heat through the thermal conductive adhesive 30.

[0078] In the embodiment where the protective cover 20 includes a main board 26 and a frame 27, a thermal conductive adhesive 30 is provided on the first surface 201, and the thermal conductive adhesive 30 is received in the receiving groove. The thermal conductive adhesive 30 can be provided in a partial area or the entire area of ​​the first surface 201 without limitation. After the thermal conductive adhesive 30 is received in the receiving groove, it can be equal to the height of the frame 27, or it can be higher or lower than the frame 27, as long as the thermal conductive adhesive 30 can be connected to the power distribution module 10.

[0079] The frame 27 can limit the heat-conducting adhesive 30 from flowing around and overflowing the protective cover 20. In addition, compared with making the protective cover 20 with a thickness equal to the sum of the thickness of the main board 26 and the height of the frame 27 (i.e., the height of the first surface 201 perpendicular to the main board 26), by providing the main board 26 and the frame 27, it is equivalent to hollowing out the middle of the thicker structure to form a receiving groove, which reduces the material, can reduce the cost, and reduce the weight. While satisfying the connection between the first surface 201 and the power distribution module 10 through the heat-conducting adhesive 30, since the protective cover 20 and the heat-conducting adhesive 30 as a whole still have a relatively thick thickness, it can ensure that the second surface 202 is connected to the heat dissipation component (when the second surface 202 is provided with the heat-conducting adhesive 30, the second surface 202 is connected to the heat dissipation component through the heat-conducting adhesive 30).

[0080] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0081] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A protective cover, characterized in that: The protective cover is an insulating heat-conducting component, and the protective cover comprises: A first surface adapted to be connected to a power distribution module of a battery device; and The second surface is suitable for connecting with the heat dissipation component of the battery device.

2. The protective cover according to claim 1, characterized in that: The first surface and the second surface are arranged opposite to each other.

3. The protective cover according to claim 1, characterized in that: The protective cover includes a main body, a first contact part and a second contact part, the first contact part and the second contact part are arranged opposite to each other, the main body connects the first contact part and the second contact part, the first contact part is suitable for connecting with the first connecting part of the distribution module, the second contact part is suitable for connecting with the second connecting part of the distribution module, the first contact part and the second contact part both have the first surface, and the main body, the first contact part and the second contact part have the second surface.

4. The protective cover according to claim 3, characterized in that: The first contact portion and the second contact portion protrude from a first side surface of the main body.

5. The protective cover according to claim 4, characterized in that: The protection cover further includes an extension portion, wherein the extension portion is connected to a second side surface of the main body portion, the second side surface is opposite to the first side surface, and the extension portion has the second surface.

6. The protective cover according to claim 5, characterized in that: The protection cover also includes a mounting portion, the mounting portion is connected to the extension portion, and the mounting portion is suitable for being connected and fixed to the battery device.

7. The protective cover according to any one of claims 1 to 6, characterized in that: The protective cover is an integrated structure.

8. A protective cover assembly, characterized in that: The protective cover comprises the protective cover according to any one of claims 1 to 7.

9. The protective cover assembly according to claim 8, characterized in that: It also includes heat-conducting glue, and the first surface and / or the second surface of the protective cover is provided with the heat-conducting glue.

10. The protective cover assembly according to claim 9, characterized in that: The protective cover includes a main board and a frame, the main board has the first surface and the second surface, the frame is connected to the four edges of the first surface, the main board and the frame together form a storage groove, the first surface is provided with the thermal conductive adhesive, and the thermal conductive adhesive is accommodated in the storage groove.

11. A battery device, characterized in that: include: Power distribution module; heat dissipation components; as well as The protective cover according to any one of claims 1 to 7, wherein the first surface is connected to the power distribution module, and the second surface is connected to the heat dissipation component; or, A protective cover assembly as claimed in any one of claims 8 to 10.

12. The battery device according to claim 11, characterized in that: The first surface is connected to the power distribution module via thermally conductive adhesive, and / or the second surface is connected to the heat dissipation component via thermally conductive adhesive.

13. The battery device according to claim 11, characterized in that: The heat dissipation component is any one of a tray, an upper cover, and a cold plate.

14. A vehicle, characterized in that: A battery device comprising any one of claims 11 to 13.

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