Tray, battery assembly, electronic device and electric equipment

Abstract

A tray, a battery assembly, an electronic device and an electric device, the tray comprises a bottom wall and a plurality of side walls, the plurality of side walls are connected and surround the bottom wall, the plurality of side walls and the bottom wall enclose to form an accommodating groove with an opening on one side, and the accommodating groove is used for accommodating a battery module; a through groove communicated with the containing groove is formed in one of the side walls, and a cover plate is arranged on the through groove and used for sealing the through groove. The tray is applied to the battery assembly, the cover plate is detachably connected to one of the multiple side walls, and the cover plate covers the through groove. And when the battery module in the battery assembly needs to be maintained or repaired, the cover plate can be detached, so that the battery module in the battery assembly can be conveniently repaired or repaired.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a tray, a battery assembly, an electronic device and an electrical equipment. Background Art

[0002] The battery assembly can be used in a vehicle and can provide electric energy for the vehicle. The tray and the upper cover of the battery assembly form a sealed structure, and the battery module in the battery assembly is in the sealed structure. At present, the existing tray structure is not convenient for repairing and maintaining the battery module. Utility Model Content

[0003] The technical problem to be solved by the embodiments of the present application is to provide a tray, a battery assembly, an electronic device and an electrical equipment that facilitate the maintenance of a battery module.

[0004] In a first aspect, the present application discloses a tray, the tray comprising a bottom wall and a plurality of side walls, the plurality of side walls are connected and surround the bottom wall, the plurality of side walls and the bottom wall are arranged to form a receiving groove having an opening on one side, the receiving groove is used to receive a battery module;

[0005] One of the plurality of side walls is provided with a through slot connected to the accommodating slot, and a cover plate is provided on the through slot, and the cover plate is used to close the through slot.

[0006] In combination with the first aspect, in a possible implementation, the plurality of side walls include a first side wall and a plurality of second side walls, the first side wall, the plurality of second side walls and the bottom wall form the accommodating groove, along the thickness direction of the bottom wall, the first side wall protrudes from the bottom surface of the accommodating groove, the second side wall protrudes from the bottom surface of the accommodating groove, and the dimension of the first side wall protruding from the bottom surface of the accommodating groove is greater than the dimension of the second side wall protruding from the bottom surface of the accommodating groove.

[0007] In combination with the first aspect, in a possible implementation, a surface of the first side wall facing away from the accommodating groove is provided with a groove surrounding the through groove, the groove accommodates a first sealing member, and the cover plate is tightly connected to the first sealing member.

[0008] In combination with the first aspect, in a possible implementation manner, the orthographic projection of the surface of the first side wall facing away from the bottom wall along the direction toward the receiving groove is a smooth curve.

[0009] In combination with the first aspect, in a possible implementation, the surface of the first side wall facing away from the bottom surface of the accommodating groove includes a first slope, a second slope and a connecting surface, the connecting surface is connected between the first slope and the second slope, the first slope gradually moves away from the second slope from one end connected to the connecting surface to the other end, and the second slope gradually moves away from the first slope from one end connected to the connecting surface to the other end.

[0010] In combination with the first aspect, in a possible implementation manner, a surface of each second side wall facing away from the receiving groove is provided with a connecting portion, and the connecting portion is connected to a side of the second side wall away from the receiving groove.

[0011] In combination with the first aspect, in a possible implementation, a folding portion is provided on the side of the connecting portion away from the second side wall, and the folding portion is folded toward the direction where the connecting portion is close to the bottom wall. The tray is also provided with a limiting member, which is connected to the second side wall and the folding portion, and the limiting member, the second side wall and the connecting portion form a slot.

[0012] In a second aspect, the present application provides a battery assembly, comprising:

[0013] The pallet according to the first aspect;

[0014] A battery module, wherein the battery module is disposed in the receiving groove;

[0015] A cover body is disposed on the plurality of side walls to close the containing groove.

[0016] In combination with the second aspect, in a possible implementation, a switch is provided on the side wall of the tray having the through slot, the battery assembly has a plurality of battery modules, and the switch is used to control the series connection of at least two battery modules among the plurality of battery modules.

[0017] In combination with the second aspect, in a possible implementation manner, a side wall of the tray having the through slot is provided with an explosion-proof hole, and the explosion-proof hole is provided with an explosion-proof valve covering the explosion-proof hole.

[0018] In combination with the second aspect, in a possible implementation, the side wall of the tray having the through slot is provided with a liquid inlet interface and a liquid outlet interface; the battery module is provided with a liquid cooling plate, and the liquid inlet interface is connected to the liquid outlet interface through the liquid cooling plate.

[0019] In combination with the second aspect, in a possible implementation, the battery assembly further includes an information collector, which is installed on a side of the cover plate facing the receiving slot, and the information collector is electrically connected to the battery module.

[0020] In combination with the second aspect, in a possible implementation, the side wall of the tray having the through slot is further connected to an edge away from the bottom wall and is folded toward the direction where the receiving slot is located.

[0021] In combination with the second aspect, in a possible implementation, the battery assembly further includes a second seal, and the second seal is connected between the cover body and end surfaces of the plurality of side walls facing away from the bottom wall.

[0022] In a third aspect, the present application provides an electronic device, comprising the battery assembly as described in the second aspect.

[0023] In a fourth aspect, the present application provides an electrical equipment, which includes an electrical device and the electronic device as described in the third aspect, and the electrical device is electrically connected to the electronic device.

[0024] In the tray provided in the present application, the tray uses a battery assembly, and the cover plate is detachably connected to one of the multiple side walls, and the cover plate covers the through slot. When the battery module in the battery assembly needs to be maintained or repaired, the cover plate can be removed, which is conducive to the maintenance or repair of the battery module in the battery assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0026] Figure 1 A schematic diagram of a structure in which a battery assembly is connected to a shelf according to an embodiment of the present application;

[0027] Figure 2 A side view of a tray provided in accordance with an embodiment of the present application;

[0028] Figure 3 An exploded schematic diagram of a battery assembly provided in one embodiment of the present application;

[0029] Figure 4 An exploded schematic diagram of a battery assembly provided in one embodiment of the present application omitting the battery module;

[0030] Figure 5 A front view of a battery assembly provided in one embodiment of the present application;

[0031] Figure 6 A schematic diagram of the structure of a cover plate provided in one embodiment of the present application;

[0032] Figure 7 A schematic diagram of the structure of another cover plate provided in one embodiment of the present application;

[0033] Figure 8A schematic diagram of the three-dimensional structure of a tray provided in one embodiment of the present application.

[0034] Description of reference numerals:

[0035] 1000, battery assembly; 100, tray; 110, bottom wall; 111, limiting rib; 120, first side wall; 121, through groove; 122, cover plate; 122a, switch; 122b, explosion-proof hole; 122c, explosion-proof valve; 123, groove; 124, first sealing member; 125, first inclined surface; 126, second inclined surface; 127, connecting surface; 128, liquid inlet interface; 129, liquid outlet interface; 129a, positive electrode interface; 129b, negative electrode interface; 129c, pipe clamp hole; 129d, rivet nut; 129e, reinforcement rib; 129f, information collector; 129g, fixed beam; 129j, handle; 129k, flange; 130, second side wall; 131, connecting part; 132, folding part; 133, limiter; 134, slot; 140, accommodating groove; 150, positioning protrusion; 160, grounding gasket; 200, cover body; 210, cover; 220, first side; 221, third slope; 222, fourth slope; 223, plane; 230, second side; 300, second sealing member; 400, battery module; 2000, shelf. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0037] The present application discloses an electric device, which includes an electric device and an electronic device, wherein the electronic device is electrically connected to the electric device and can provide electric energy to the electronic device. The electric device can be a vehicle, and the vehicle can be, but is not limited to, a fuel vehicle, an electric vehicle, and a hybrid vehicle. For example, if the vehicle is an electric vehicle, the electronic device can provide electric energy to the electric motor of the electric vehicle, and the electronic device can also provide electric energy to the electric devices (on-board terminals, air conditioners, lighting lamps, etc.) in the vehicle.

[0038] The electronic device is fixed on the vehicle frame. When the electronic device supplies power to the motor, vehicle terminal, air conditioner, lighting and other devices and an abnormality occurs, in order to repair or maintain the battery assembly, the cover of the battery assembly in the electronic device will be removed, and the battery module in the battery assembly will be inspected and repaired. Generally speaking, due to the need to consider the size of the vehicle itself and the available space in the vehicle, the space for fixing the electronic device in the vehicle is limited, and it is not convenient to remove and install the cover of the battery assembly in the electronic device. The conventional tray used for the battery assembly is not conducive to the repair or maintenance of the battery assembly.

[0039] In one possible implementation, see Figure 1 The battery assembly 1000 is arranged in a container. There may be multiple battery assemblies 1000. The battery assembly 1000 may be a battery pack. The container has multiple layers of shelves 2000. Each layer of shelf 2000 is used to support the battery assembly 1000. The shelf 2000 is also used to position the battery assembly 1000. The battery assembly 1000 also includes a grounding gasket 160. The shelf 2000 directly supports the grounding gasket 160.

[0040] In the battery assembly 1000 provided in this application, see Figure 2 and Figure 3 The battery assembly 1000 includes a tray 100, a battery module 400 and a cover 200. The tray 100 has a receiving groove 140, the battery module 400 is arranged in the receiving groove 140, and the cover 200 is suitable for cooperating with the tray 100 to seal the battery module 400 in the receiving groove 140.

[0041] In the embodiment provided in the application, the battery tray 100 is also provided with a plurality of positioning protrusions 150. When the battery tray 100 is fixedly connected to the shelf 2000, the plurality of positioning protrusions 150 cooperate with the shelf 2000 so that the shelf 2000 can position the battery assembly 1000 in multiple directions such as up, down, front, back, left and right.

[0042] The tray 100 includes a bottom wall 110 and a plurality of side walls, the plurality of side walls are connected end to end and surround the bottom wall 110, the plurality of side walls are connected to a side surface of the bottom wall 110, and the bottom wall 110 and the plurality of side walls are arranged to form a receiving groove 140 with an opening on one side. The receiving groove 140 is used to receive the battery module 400, and the cover 200 closes the opening of the receiving groove 140 and seals the battery module 400 in the receiving groove 140. In the present application, the bottom wall 110 and the plurality of side walls may be integrally formed sheet metal parts, and the tray 100 is insulated.

[0043] See also Figure 3 as well as Figure 4 One of the multiple side walls is provided with a through groove 121 that passes through the receiving groove 140. The through groove 121 in the side wall can facilitate the user to maintain or repair the battery module 400 in the receiving groove 140. The through groove 121 can allow the user's hands or tools to extend into the receiving groove 140 to repair or maintain the battery module 400 in the receiving groove 140.

[0044] In the tray 100 provided in the present application, the plurality of side walls specifically include a first side wall 120 and a plurality of second side walls 130, and the first side wall 120, the plurality of second side walls 130 and the bottom wall 110 are surrounded to form a receiving groove 140. The surface of the first side wall 120 facing away from the receiving groove 140 protrudes from the bottom surface of the receiving groove 140, and the second side wall 130 protrudes from the bottom surface of the receiving groove 140. The dimension of the first side wall 120 protruding from the bottom surface of the receiving groove 140 is greater than the dimension of the second side wall 130 protruding from the bottom surface of the receiving groove 140. It can be understood that the surface of the first side wall 120 facing away from the bottom wall 110 is farther away from the bottom wall 110 than the surfaces of the second side walls 130 facing away from the bottom wall 110, so that the first side wall 120 has sufficient space to open the through groove 121. The orthographic projection of the surface of the first side wall 120 facing away from the bottom wall 110 in the direction toward the receiving groove 140 is a smooth curve. The smooth curve is a continuous curve with smooth transitions at various locations, the smooth curve may be a curve with a middle portion bulging away from the bottom wall, the smooth curve may be an arc line with a middle portion bulging away from the bottom wall, the smooth curve may be a quasi-normal distribution curve, or may be a quasi-trapezoidal shape with smooth transitions at various locations.

[0045] In the tray 100 provided in the present application, the tray 100 is further provided with a cover plate 122, which is detachably connected to the first side wall 120 and covers the through slot 121. When it is necessary to maintain or repair the battery module 400 in the battery assembly 1000, the cover plate 122 can be removed, which is conducive to maintaining or repairing the battery module 400 in the battery assembly 1000.

[0046] The surface of the first side wall 120 facing away from the receiving groove 140 is provided with a groove 123 surrounding the through groove 121 , and the groove 123 accommodates a first sealing member 124 , which may be a silicone strip. The cover plate 122 is tightly connected to the first sealing member 124 to close the through groove 121 .

[0047] In the tray 100 provided in the present application, the first side wall 120 is generally trapezoidal, and the surface of the first side wall 120 facing away from the bottom surface includes a first inclined surface 125, a second inclined surface 126 and a connecting surface 127, the connecting surface 127 is connected between the first inclined surface 125 and the second inclined surface 126, the first inclined surface 125 gradually moves away from the second inclined surface 126 from one end connected to the connecting surface 127 to the other end, and the second inclined surface 126 gradually moves away from the first inclined surface 125 from one end connected to the connecting surface 127 to the other end. The structure of the cover body 200 is adapted to the structure of the tray 100, specifically, the cover body 200 includes a cover portion 210 and a plurality of side portions surrounding the cover portion 210, and the plurality of side portions include a first side portion 220 and a plurality of second side portions 230. The first side wall 120 is adapted to the first side portion 220, and each second side wall 130 is adapted to each second side portion 230. The surface of the first side portion 220 facing away from the cover portion 210 includes a third inclined surface 221, a fourth inclined surface 222 and a plane 223, the plane 223 connects the third inclined surface 221 and the fourth inclined surface 222, the third inclined surface 221 is connected to the first inclined surface 125, the fourth inclined surface 222 is connected to the second inclined surface 126, and the connecting surface 127 is connected to the plane 223. Since the first side wall 120 has the first inclined surface 125 and the second inclined surface 126, when the cover body 200 is matched with the tray 100, the contact area between the cover body 200 and the tray 100 is larger, and the contact surfaces of the cover body 200 and the tray 100 are not on the same horizontal plane 223, the matching of the cover body 200 and the tray 100 is not prone to horizontal deviation, and at the same time, the sealing of the connection between the cover body 200 and the tray 100 is better, which can improve the waterproof performance of the battery assembly. The first side wall 120 and the first side portion 220 are fixedly connected by rivets, and each second side wall 130 is fixedly connected to each second side portion 230 by rivets, which can improve the connection strength and air tightness of the tray 100 and the cover body 200, isolate the high voltage inside the battery assembly 1000 from the environment outside the battery assembly 1000, and improve the safety of the battery assembly 1000.

[0048] In the cover body 200 provided in the present application, the cover body 200 is made of SMC composite material (Sheet molding compound). During the mold opening and manufacturing process of the cover body 200 made of SMC composite material, the first side portion of the cover body 200 will form a 3°-5° inclined surface. The first side wall 120 is provided on the tray, and the first side wall is adapted to the structure of the cover body 200, and the first side wall 120 can just make up for the height difference caused by the inclined surface in the cover body 200. This makes the cover body and the multiple side walls more tightly connected.

[0049] The battery assembly 1000 also has a second seal 300, which is connected between the tray 100 and the cover 200. Specifically, the second seal 300 is connected between the cover 200 and the surface of the plurality of side walls away from the bottom wall. The second seal 300 has a sealing function, and the second seal 300 can be a silicone strip. It should be noted that when the second seal 300 connects the tray 100 and the cover 200, the first side wall 120 guides the cover 200, and the cover 200 presses down the second seal 300. The force points of the second seal 300 are vertically downward, and it is not easy to be torn.

[0050] In the tray 100 provided in this application, see Figure 5 Combined with Figure 3, a switch 122a is provided on the first side wall 120 of the tray 100, and the number of battery modules 400 in the battery assembly 1000 is multiple, and the switch 122a is used to control the series connection of at least two battery modules 400 among the multiple battery modules 400. The number of switches 122a can be multiple, and each switch 122a is used to control the series connection of at least two battery modules 400. Specifically, when the switch 122a is closed, at least two battery modules 400 corresponding to the switch 122a are electrically connected (connected in series) through the switch 122a. When the switch 122a is disconnected, the switch 122a disconnects the electrical connection of at least two battery modules 400 corresponding to it. It should be noted that in order to increase the voltage of the battery assembly 1000, the battery modules 400 of the battery assembly 1000 are superimposed in series. However, when the battery assembly 1000 needs to be maintained or maintained, the higher voltage in the battery assembly 1000 is likely to harm the user who is maintaining it. The series connection of at least two battery modules 400 of the plurality of battery modules 400 is controlled by the switch 122a. When the switch 122a is in the disconnected state, the output voltage of the battery assembly 1000 can be reduced, thereby providing the safety performance of the battery assembly 1000. Exemplarily, the number of battery modules 400 is 6, and the 6 battery modules 400 are specifically marked as battery module 1 400, battery module 2 400, battery module 3 400, battery module 400, battery module 5 400, and battery module 6 400. The number of switches 122a is two, one switch 122a controls the connection between battery module 2 400 and battery module 3 400, and the other switch 122a controls battery module 400 and battery module 5 400. When the battery assembly 1000 operates normally, the two openings are closed, and battery module No. 1 400 , battery module No. 2 400 , battery module No. 3 400 , battery module No. 4 400 , battery module No. 5 400 and battery module No. 6 400 are connected in series to increase the voltage of the battery assembly 1000 . When it is necessary to repair the battery module 400 in the battery assembly 1000, the two switches 122a are disconnected, battery module No. 2 400 and battery module No. 3 400 are disconnected, and battery module No. 4 400 and battery module No. 5 400 are disconnected. At this time, the six battery modules 400 are divided into three groups. The first group is battery module No. 1 400 and battery module No. 2 400 connected in series, the second group is battery module No. 3 400 and battery module No. 4 400 connected in series, and the third group is battery module No. 5 400 and battery module No. 6 400 connected in series. This greatly reduces the total voltage in the battery assembly 1000 and improves the safety of users repairing the battery assembly 1000.

[0051] In the tray 100 provided in the present application, the side wall of the tray 100 having the through slot 121 is provided with an explosion-proof hole 122b, and the explosion-proof hole 122b is provided with an explosion-proof valve 122c covering the explosion-proof hole 122b. The explosion-proof valve 122c is used to be opened when the battery assembly 1000 has thermal runaway, and can release the pressure of the receiving groove 140 in the battery assembly 1000, thereby reducing the pressure of the receiving groove 140 in the battery assembly 1000, reducing the possibility of the battery assembly 1000 exploding due to the diffusion of hydrogen and carbon monoxide after the explosion-proof valve 122c explodes, resulting in excessive internal gas pressure of the battery assembly 1000, and improving the safety performance of the battery assembly 1000.

[0052] In the tray 100 provided in the present application, the first side wall 120 is provided with a liquid inlet interface 128 and a liquid outlet interface 129, and the battery module 400 is provided with a liquid cooling plate, which is used to cool the battery module 400. The temperature of the battery module 400 is reduced by the liquid cooling plate to improve the safety performance of the battery module 400. Specifically, the liquid inlet interface 128 is used to inject coolant into the liquid cooling plate, and the liquid outlet interface 129 is used to discharge the coolant. The coolant flows through the liquid cooling plate to take away the heat of the battery module 400 and is discharged from the liquid outlet interface 129.

[0053] The first side wall 120 is also provided with a positive electrode interface 129a and a negative electrode interface 129b, wherein the positive electrode interface 129a is connected to the positive electrode of the power source formed by the multiple battery modules 400, and the negative electrode interface 129b is connected to the negative electrode of the power source formed by the multiple battery modules 400. In the present application, the positive electrode interface 129a is connected to the positive electrode of the power source constructed by the multiple battery modules 400 through a copper busbar, and the negative electrode interface 129b is connected to the negative electrode of the power source constructed by the multiple battery modules 400 through a copper busbar.

[0054] The positive electrode interface 129a and the negative electrode interface 129b can also be used as communication interfaces to transmit communication data to a communication device, and the communication device and the communication interface can be plugged in and matched.

[0055] In the embodiment provided in the present application, the first side wall 120 is also provided with a pipe clamp hole 129c, and a clamping piece is inserted into the pipe clamp hole 129c. The clamping piece is used to limit the electric wires connected to the negative electrode interface 129b or the positive electrode interface 129a. The clamping piece can also be used to limit the infusion tube connected to the liquid inlet interface 128 or the liquid outlet interface 129.

[0056] A rivet nut 129d is provided on the surface of the first side wall 120 facing away from the accommodating groove 140. When the battery assembly 1000 is arranged in a container, the rivet nut 129d is provided on the first side wall 120, and the battery assembly 1000 can be pulled out of the container by using the rivet nut 129d.

[0057] In the battery assembly 1000 provided in this application, see Figure 6The battery assembly 1000 also includes an information collector 129f. The information collector 129f can be a power battery pack information collector 129f (Battery Information Collector, referred to as BIC). The information collector 129f can also be a BCC. The information collector 129f is arranged on the surface of the cover plate 122 facing the receiving groove 140. The information collector 129f is used for voltage sampling, temperature sampling, battery balancing, sampling line abnormality detection, etc. of the battery module 400.

[0058] Specifically, see Figure 7 , a plurality of fixing beams 129g are provided on one side of the cover plate 122 facing the receiving groove 140, and the information collector 129f is mounted on the fixing beams 129g. In the application, the number of the fixing beams 129g is two, and the fixing beams 129g may be provided with a plurality of positioning holes, through which the information collector 129f can be positioned. When the information collector 129f needs to be repaired or replaced, the cover plate 122 may be removed to facilitate the repair of the information collector 129f.

[0059] A handle 129 j is provided on a side of the cover plate 122 facing away from the receiving groove 140 , and the handle 129 j is used for the user to grasp it conveniently so as to facilitate the removal of the cover plate 122 .

[0060] See also Figure 8 The edge of the first side wall 120 facing away from the bottom wall 110 is connected with a flange 129k, and the flange 129k is folded toward the direction of the receiving groove 140, which is more conducive to the sealing connection between the first side wall 120 and the first side portion.

[0061] In the battery assembly 1000 provided in the present application, a plurality of reinforcing ribs 129 e are further provided on a side of the first side wall 120 facing the receiving groove, and the reinforcing ribs 129 e are used to increase the strength of the first side wall 120 .

[0062] In the embodiment provided in the present application, a connection portion 131 is provided on the surface of each second side wall 130 away from the receiving groove, and the connection portion 131 is connected to the side of the second side wall 130 away from the receiving groove. Each connection portion 131 is connected to each second side portion of the cover body, and the connection portion 131 does not occupy the space of the receiving groove, and the connection portion 131 does not interfere with the battery module 400, which is conducive to the installation of the battery module 400.

[0063] The edge of the connecting portion 131 away from the second side wall 130 is provided with a folding portion 132, which is folded toward the connecting portion 131 close to the bottom wall 110. The tray 100 is further provided with a stopper 133, which is connected to the second side wall 130 and the folding portion 132. The stopper 133, the second side wall 130, and the connecting portion 131 form a slot 134. In the embodiment provided in the present application, a positioning protrusion 150 is provided on the folding portion 132.

[0064] The folding portion 132 is folded toward the bottom wall 110, not toward a person, and is not likely to cause harm to an outsider. The slot 134 can be inserted by a forklift, and the pallet can be moved or transported by the forklift. The number of the slots 134 can be multiple, and when the forklift is inserted into the slots 134, the forklift can stably lift the pallet or the entire battery assembly 1000.

[0065] In the embodiment provided in the present application, a plurality of limiting ribs 111 are protruding from the bottom surface of the bottom wall 110. The limiting ribs 111 can support a plurality of battery modules 400 in the battery assembly 1000. The weight of the plurality of battery modules 400 is distributed on the limiting ribs 111. The limiting ribs 111 can improve the structural strength of the tray 100. The plurality of limiting ribs 111 can also limit or position the battery modules 400.

[0066] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0067] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0068] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0069] In addition, the technical solutions between the various embodiments of the present application can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0070] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A pallet, characterized in that: It includes a bottom wall and a plurality of side walls, wherein the plurality of side walls are connected and surround the bottom wall, and the plurality of side walls and the bottom wall are arranged to form a receiving groove with an opening on one side, and the receiving groove is used to receive the battery module; One of the plurality of side walls is provided with a through slot connected to the accommodating slot, and a cover plate is provided on the through slot, and the cover plate is used to close the through slot.

2. The pallet according to claim 1, characterized in that The multiple side walls include a first side wall and multiple second side walls, the first side wall, the multiple second side walls and the bottom wall form the accommodating groove, along the thickness direction of the bottom wall, the first side wall protrudes from the bottom surface of the accommodating groove, the second side wall protrudes from the bottom surface of the accommodating groove, and the dimension of the first side wall protruding from the bottom surface of the accommodating groove is greater than the dimension of the second side wall protruding from the bottom surface of the accommodating groove.

3. The pallet according to claim 2, characterized in that: A groove surrounding the through groove is provided on the surface of the first side wall facing away from the accommodating groove. The groove accommodates a first sealing member. The cover plate is tightly connected to the first sealing member.

4. The tray according to claim 2, characterized in that: The orthographic projection of the surface of the first side wall facing away from the bottom wall in the direction toward the receiving groove is a smooth curve.

5. The pallet according to claim 2, characterized in that: The surface of the first side wall facing away from the bottom surface of the accommodating groove includes a first inclined surface, a second inclined surface and a connecting surface, the connecting surface is connected between the first inclined surface and the second inclined surface, the first inclined surface gradually moves away from the second inclined surface from one end connected to the connecting surface to the other end, and the second inclined surface gradually moves away from the first inclined surface from one end connected to the connecting surface to the other end.

6. The pallet according to claim 2, characterized in that: A connecting portion is provided on a surface of each second side wall facing away from the receiving groove, and the connecting portion is connected to a side of the second side wall away from the receiving groove.

7. The tray according to claim 6, characterized in that A folding portion is provided on the side of the connecting portion away from the second side wall, and the folding portion is folded toward the connecting portion close to the bottom wall. The tray is also provided with a limiting member, which is connected to the second side wall and the folding portion, and the limiting member, the second side wall and the connecting portion form a slot.

8. A battery assembly, characterized in that: include: The pallet according to any one of claims 1 to 7; A battery module, wherein the battery module is disposed in the receiving groove; A cover body is disposed on the plurality of side walls to close the containing groove.

9. The battery assembly according to claim 8, characterized in that: A switch is provided on the side wall of the tray where the through slot is provided. There are multiple battery modules in the battery assembly, and the switch is used to control the series connection of at least two battery modules among the multiple battery modules.

10. The battery assembly according to claim 8, characterized in that The side wall of the tray having the through slot is provided with an explosion-proof hole, and the explosion-proof hole is provided with an explosion-proof valve covering the explosion-proof hole.

11. The battery assembly according to claim 8, characterized in that The side wall of the tray with the through slot is provided with a liquid inlet interface and a liquid outlet interface; the battery module is provided with a liquid cooling plate, and the liquid inlet interface is connected with the liquid outlet interface through the liquid cooling plate.

12. The battery assembly according to claim 8, characterized in that The battery assembly also includes an information collector, which is installed on a side of the cover plate facing the receiving slot, and is electrically connected to the battery module.

13. The battery assembly according to claim 8, characterized in that The side wall of the tray provided with the through slot is connected to an edge away from the bottom wall and is folded toward the direction where the receiving slot is located.

14. The battery assembly according to claim 8, characterized in that The battery assembly further includes a second sealing member connected between the cover body and end surfaces of the plurality of side walls facing away from the bottom wall.

15. An electronic device, characterized in that: The electronic device comprises the battery assembly as claimed in any one of claims 8 to 14.

16. An electrical equipment, characterized in that: The electric equipment includes an electric device and the electronic device as claimed in claim 15, and the electric device is electrically connected to the electronic device.

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