Tray, battery pack and electric equipment

Abstract

The utility model relates to a tray, a battery pack and electric equipment. The tray comprises a frame body and a cold plate, the cold plate comprises a plate body and a connector, and the connector is connected to the plate body. The plate body is connected to the frame body; the frame body is provided with an avoiding groove, and an opening of the avoiding groove faces the plate body. The connector is located in the receding groove. Through the arrangement of the embodiment, when the tray is assembled, the air tightness of the frame bodies can be tested firstly, so that the frame bodies with unqualified air tightness are screened out in advance and are prevented from flowing into a downstream process, and the situation that the air tightness of the whole tray is unqualified due to the unqualified air tightness of the frame bodies is effectively avoided; therefore, material waste caused by tray production can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile accessories and relates to a tray, a battery pack and electrical equipment. Background Art

[0002] The tray is used to carry batteries and is an important component of new energy vehicles. In related technologies, the tray usually includes a frame and a cold plate; wherein the frame includes a plurality of frames, each of which is connected end to end to enclose a receiving cavity, and the cold plate is connected to each frame and closes one end of the receiving cavity. A joint is provided on the cold plate, and an avoidance hole is provided on the frame. The avoidance hole penetrates the frame along the radial direction of the receiving cavity, and the joint is located in the avoidance hole.

[0003] During assembly, the frame without the avoidance hole (the frame is defined as the first frame) is first welded to the cold plate, and then the frame with the avoidance hole (the frame is defined as the second frame) is driven to move along the axial direction of the avoidance hole so that the joint can extend into the avoidance hole, and then the first frame and the second frame are welded, and the second frame and the cold plate are welded to form a pallet.

[0004] After the pallet is assembled, an airtightness test is performed. If the airtightness of the pallet fails to meet the requirements, the entire pallet will be scrapped. Therefore, the pallet in the related art is prone to material waste during production. Utility Model Content

[0005] In view of the problem that materials are easily wasted during the production of pallets in the related art, a pallet, a battery pack and an electrical device are provided.

[0006] In order to solve the above technical problems, on the one hand, an embodiment of the utility model provides a pallet, including a frame and a cold plate; the cold plate includes a plate body and a joint, the joint is connected to the plate body; the plate body is connected to the frame body; the frame body is provided with an avoidance groove, the opening of the avoidance groove faces the plate body; the joint is located in the avoidance groove.

[0007] Optionally, along the arrangement direction of the frame body and the plate body, the frame body has a first surface and a second surface arranged opposite to each other; the frame body is provided with a accommodating cavity, and the accommodating cavity passes through the first surface and the second surface; the plate body is connected to the first surface and closes the accommodating cavity; the avoidance groove is arranged on the first surface and passes through the inner surface of the accommodating cavity.

[0008] Optionally, an avoidance hole is provided on the outer surface of the frame body, and the avoidance groove extends to the bottom surface of the avoidance hole along the direction from the inner surface of the accommodating cavity to the outer surface of the frame body; the avoidance groove forms a first window on the inner surface of the accommodating cavity, and the avoidance hole forms a second window on the outer surface of the frame body; in the arrangement direction of the first window and the second window, the surface of the joint facing away from the accommodating cavity is located between the first window and the second window.

[0009] Optionally, an avoidance hole is provided on the outer surface of the frame body, and the avoidance groove penetrates to the bottom surface of the avoidance hole along the direction from the inner surface of the accommodating cavity to the outer surface of the frame body.

[0010] Optionally, the joint is sealed and connected to the groove wall of the avoidance groove.

[0011] Optionally, there are multiple connectors.

[0012] Optionally, the plate body includes multiple sub-plates, and the fluid channels of each sub-plate are isolated from each other; each sub-plate corresponds to at least one connector; the sub-plate is connected to the corresponding connector; the inlet and outlet of the connector are both connected to the fluid channel of the corresponding sub-plate.

[0013] Optionally, the tray further includes a connecting plate and a first sealing structure, wherein the first sealing structure seals and connects the joint and the connecting plate.

[0014] Optionally, the tray further includes a second sealing structure, wherein the second sealing structure seals and connects the connecting plate and the groove wall of the avoidance groove.

[0015] Optionally, the tray further includes a third sealing structure, wherein the third sealing structure seals and connects the connecting plate and the plate body.

[0016] Optionally, the first sealing structure is a welding structure; and / or the second sealing structure is a welding structure.

[0017] Optionally, the first sealing structure is a welding structure; and / or the third sealing structure is a welding structure.

[0018] Optionally, the joint includes a first connecting part and a second connecting part, the first connecting part is connected to the plate body, the second connecting part is connected to the first connecting part and is spaced apart from the plate body; at least a portion of the second connecting part is located in the avoidance groove.

[0019] Optionally, a receiving cavity is provided on the frame body, the avoidance groove forms a first window on the inner surface of the receiving cavity, and at least a part of the first connecting portion is located in the receiving cavity.

[0020] Optionally, an avoidance hole is provided on the outer surface of the frame, and the avoidance groove penetrates to the bottom surface of the avoidance hole; a part of the second connecting part is located in the avoidance groove, and a part of the second connecting part is located in the avoidance hole.

[0021] Optionally, the pallet also includes a connecting plate, which is respectively connected to the joint, the groove wall of the avoidance groove and the plate body; the connecting plate is provided with a mounting hole or a mounting groove that passes through the connecting plate; and the second connecting portion is passed through the mounting hole or the mounting groove.

[0022] Optionally, the bottom surface of the mounting groove is located between the second connecting portion and the plate body, and in the arrangement direction of the second connecting portion and the plate body, the side wall of the mounting groove does not overlap with the second connecting portion.

[0023] Optionally, the connecting plate includes a first plate and a second plate, and the mounting hole or the mounting groove is arranged on the first plate; the second plate is connected to an end of the first plate close to the cold plate, and the first plate and the second plate are arranged along the direction of the second connecting part away from the first connecting part.

[0024] Optionally, one end of the second connection portion away from the first connection portion protrudes out of the mounting hole or the mounting groove.

[0025] Optionally, the length of the second connecting portion protruding from the mounting hole or the mounting groove is 2 mm-3 mm.

[0026] Optionally, an avoidance hole is provided on the outer surface of the frame, and the avoidance groove penetrates to the bottom surface of the avoidance hole; a part of the second connecting part is located in the avoidance groove, and a part of the second connecting part is located in the avoidance hole; the first plate is connected to the bottom surface of the avoidance hole, and the second plate is connected to the inner surface of the avoidance hole.

[0027] Optionally, an avoidance hole is provided on the outer surface of the frame, and the avoidance groove penetrates to the bottom surface of the avoidance hole; the tray also includes a connecting plate, which is respectively connected to the joint, the groove wall of the avoidance groove and the plate body; the connecting plate is located in the avoidance hole and abuts against the bottom surface of the avoidance hole.

[0028] Optionally, an avoidance hole is provided on the outer surface of the frame; the avoidance groove penetrates to the bottom surface of the avoidance hole and extends to at least a portion of the side wall of the avoidance hole; at least a portion of the joint is located in the avoidance hole.

[0029] In order to solve the above technical problems, on the other hand, an embodiment of the utility model provides a battery pack, comprising any one of the trays described above.

[0030] In order to solve the above technical problems, on the other hand, an embodiment of the utility model provides an electrical device, including the battery pack as described above.

[0031] In the pallet, battery pack and electrical equipment provided by the embodiment of the utility model, when assembling the pallet, the frame can be assembled first, and then the air tightness of the frame can be tested. When the air tightness of the frame is qualified, the cold plate and the frame are driven closer to each other along the direction from the first surface to the second surface, so that the joint can be placed in the avoidance groove from the opening formed on the first surface of the avoidance groove, and the relative position of the plate body and the frame is moved to a suitable position, and then the plate body and the frame are sealed and connected, and the groove wall of the connecting joint and the avoidance groove is sealed to assemble into a pallet; and then the pallet is tested for air tightness. That is, through the arrangement of this embodiment, when assembling the pallet, the air tightness of the frame can be tested first, so as to screen out the frame with unqualified air tightness in advance and prevent it from flowing into the downstream process, thereby effectively avoiding the situation where the air tightness of the entire pallet is unqualified due to the unqualified air tightness of the frame. However, during the production of the pallet in the related art, it is impossible to perform an air tightness test on the frame before the pallet is assembled. After the frame with unqualified air tightness is connected to the cold plate, the frame with unqualified air tightness and the cold plate connected thereto will be scrapped. Therefore, compared with the related art, the pallet provided in this embodiment is conducive to reducing material waste caused by the production of the pallet.

[0032] Moreover, in this embodiment, no matter how many joints there are and where the joints are arranged on the plate body, the above-mentioned method can be used to assemble the pallet, so as to reduce the material waste caused by the production of the pallet. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a tray provided by an embodiment of the utility model;

[0034] Figure 2 yes Figure 1 A magnified image of area A;

[0035] Figure 3 yes Figure 2 Exploded diagram of

[0036] Figure 4 It is a cross-sectional view of a joint of a tray provided by an embodiment of the utility model;

[0037] Figure 5 It is a structural schematic diagram of a cold plate of a tray provided by an embodiment of the utility model;

[0038] Figure 6This is a structural schematic diagram of a connecting plate of a tray provided in one embodiment of the utility model;

[0039] Figure 7 It is a structural schematic diagram of a connecting plate of a tray provided in another embodiment of the utility model.

[0040] The reference numerals in the specification are as follows:

[0041] 10. Pallet;

[0042] 1. frame; 11. first surface; 12. second surface; 13. accommodating cavity; 14. avoidance space; 14a. avoidance groove; 14b. avoidance hole; 141. first window; 142. second window; 15. first frame; 16. second frame; 17. third frame; 18. fourth frame;

[0043] 2. cold plate; 21. plate body; 211. sub-plate; 22. joint; 221. sub-joint; 222. first connecting part; 223. second connecting part;

[0044] 3. Accommodation space;

[0045] 4. Connecting plate; 41. Mounting hole; 42. Mounting slot; 43. First plate; 44. Second plate;

[0046] 5. The first sealing structure;

[0047] 6. Second sealing structure;

[0048] 7. The third sealing structure. DETAILED DESCRIPTION

[0049] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0050] like Figure 1 and Figure 2 As shown, in one embodiment, the tray 10 includes a frame 1 and a cold plate 2, which are connected to form a receiving space 3. When the tray 10 is applied to a vehicle, the receiving space 3 is used to place batteries, and a fluid can be passed into the cold plate 2 to adjust the temperature of the batteries placed in the receiving space 3. Specifically, by controlling the temperature of the fluid, the batteries in the receiving space 3 can be cooled or heated. The fluid can be a liquid or a gas, etc.

[0051] like Figures 1 to 4As shown, the cold plate 2 includes a plate body 21 and a joint 22, the joint 22 is connected to the plate body 21; the plate body 21 is connected to the frame 1; the frame 1 is provided with an avoidance groove 14a, the opening 140 of the avoidance groove 14a faces the plate body 21; the joint 22 is located in the avoidance groove 14a.

[0052] When assembling the pallet 10 provided in this embodiment, the frame 1 can be assembled first, and then the air tightness of the frame 1 can be tested. When the air tightness of the frame 1 is qualified, the cold plate 2 and the frame 1 are driven to approach each other, so that the joint 22 can be placed in the avoidance groove 14a from the opening 140 of the avoidance groove 14a, and the relative positions of the plate 21 and the frame 1 are moved to a suitable position, and then the air tightness test of the pallet 10 is performed. That is, through the arrangement of this embodiment, when assembling the pallet 10, the air tightness of the frame 1 can be tested first, so as to screen out the frame 1 with unqualified air tightness in advance and prevent it from flowing into the downstream process, thereby effectively avoiding the situation where the air tightness of the entire pallet 10 is unqualified due to the unqualified air tightness of the frame 1. However, during the production of the pallet in the related art, it is impossible to perform an airtightness test on the frame 1 before the pallet is assembled. After the frame 1 with unqualified airtightness is connected to the cold plate 2, the frame 1 with unqualified airtightness and the cold plate 2 connected thereto will be scrapped. Therefore, compared with the related art, the pallet 10 provided in this embodiment is conducive to reducing the material waste caused by the production of the pallet 10.

[0053] Moreover, in this embodiment, regardless of the number of the joints 22 and the locations of the joints 22 on the plate body 21 , the pallet 10 can be assembled in the above manner to reduce material waste caused by the production of the pallet 10 .

[0054] like Figures 1 to 4 As shown, the frame 1 includes a first surface 11 and a second surface 12 that are arranged opposite to each other; a receiving cavity 13 is provided on the frame 1, and the receiving cavity 13 penetrates the first surface 11 and the second surface 12, that is, along the arrangement direction of the first surface 11 and the second surface 12, the receiving cavity 13 penetrates the frame 1. In addition, an avoidance groove 14a is provided on the first surface 11, so as to form an opening 140 on the first surface 11, and the avoidance groove 14a penetrates to the inner surface of the receiving cavity 13 along the direction from the outer surface of the frame 1 to the inner surface of the receiving cavity 13; wherein, the inner surface of the receiving cavity 13 is the inner surface of the frame 1, and the outer surface of the frame 1 mentioned here refers to the outer side surface of the frame 1, wherein the two ends of the outer side surface intersect the first surface 11 and the second surface 12 respectively, and the frame 1 is equivalent to the side wall of the receiving cavity 13, and the avoidance groove 14a penetrates the side wall of the receiving cavity 13 along the radial direction of the receiving cavity 13, so that the receiving cavity 13 is connected with the external space of the frame 1 from the avoidance groove 14a.

[0055] Among them, in an actual application scenario, the first surface 11 is the lower surface of the frame 1, the second surface 12 is the upper surface of the frame 1, the lower end of the outer surface intersects with one end of the first surface 11, and the upper end of the outer surface intersects with one end of the second surface 12.

[0056] The plate body 21 is connected to the first surface 11 and closes the accommodating cavity 13. The portion of the accommodating cavity 13 between the second surface 12 and the plate body 21 is the accommodating space 3. The joint 22 is sealedly connected to the groove wall of the avoidance groove 14a to prevent the accommodating space 3 from leaking at the avoidance groove 14a.

[0057] Among them, "the plate body 21 is connected to the first surface 11" may mean that the plate body 21 is installed on the first surface 11; it may also mean that the plate body 21 is installed in the accommodating cavity 13 and is arranged close to the first surface 11. In this case, the surface of the plate body 21 facing away from the second surface 12 may be flush with the first surface 11, or the surface of the plate body 21 facing away from the second surface 12 may be located outside the accommodating cavity 13 and spaced a certain distance from the first surface 11; or the surface of the plate body 21 facing away from the second surface 12 may be located inside the accommodating cavity 13 and spaced a certain distance from the first surface 11.

[0058] “The plate body 21 closes the accommodating cavity 13” means that the plate body 21 is sealed to the frame body 1 to close the opening formed by the first surface 11 of the accommodating cavity 13. When the surface of the plate body 21 facing away from the second surface 12 is located inside the accommodating cavity 13 and is spaced a certain distance from the first surface 11, the opening formed on the first surface 11 of the accommodating cavity 13 can also be regarded as being closed by the plate body 21.

[0059] After the tray 10 is assembled, the frame 1 and the plate 21 are sealed, the groove wall of the avoidance groove 14a and the joint 22 are sealed, and the plate 21 and the joint 22 are also sealed, so that the airtightness of the accommodating space 3 can be guaranteed to meet the requirements.

[0060] When assembling the pallet 10, the frame 1 can be assembled first. When the air tightness of the frame 1 is qualified, the cold plate 2 and the frame 1 are driven closer to each other along the direction from the first surface 11 to the second surface 12, so that the joint 22 can be inserted into the avoidance groove 14a from the opening formed by the avoidance groove 14a on the first surface 11, and the relative positions of the plate body 21 and the frame 1 are moved to a suitable position, and then the plate body 21 and the frame 1 are sealed and connected, and the groove wall of the connecting joint 22 and the avoidance groove 14a are sealed to assemble the pallet 10.

[0061] The airtightness of the detection frame 1 is mainly to detect whether the gas in the accommodating cavity 13 leaks outward from the side wall of the accommodating cavity 13 , or to detect whether the gas outside the accommodating cavity 13 enters the accommodating cavity 13 from the side wall of the accommodating cavity 13 .

[0062] It should be understood that a fluid channel is provided in the plate body 21 so that the fluid can flow in the plate body 21, and an inlet and an outlet are provided on the joint 22, both of which are connected to the fluid channel, so that the fluid can be introduced into the fluid channel of the plate body 21 at the inlet of the joint 22, and the fluid flowing out of the fluid channel of the plate body 21 can be recovered from the outlet of the joint 22.

[0063] like Figure 1 As shown, in one embodiment, the frame 1 includes a plurality of frames 1a, and the frames 1a are connected end to end in sequence to form a receiving cavity 13. Here, "plurality" means greater than or equal to two, and the meaning of "plurality" in each embodiment is the same, which will not be repeated in the following text. Specifically, the number of frames 1a can be two, three, four or five, etc.

[0064] exist Figure 1 In the illustrated embodiment, the frame 1 includes four frames 1a, and the four frames are connected to form a rectangular ring structure, and the accommodating cavity 13 is a rectangular hole. In addition, the four frames are respectively a first frame 15, a second frame 16, a third frame 17 and a fourth frame 18. The lower surfaces of the four frames constitute the first surface 11, and the upper surfaces of the four frames constitute the second surface 12. In an actual application scenario, the first frame 15 and the third frame 17 are arranged at intervals along the front-back direction, and the second frame 16 and the fourth frame 18 are arranged at intervals along the left-right direction, and the first frame 15 is located in front of the third frame 17, and the second frame 16 is located on the left side of the fourth frame 18. In this embodiment, the outer side of the frame 1 includes the surface of the first frame 15 away from the third frame 17, the surface of the second frame 16 away from the fourth frame 18, the surface of the third frame 17 away from the first frame 15, and the surface of the fourth frame 18 away from the second frame 16.

[0065] During production, two adjacent frames may be welded together, and the air tightness of the frame 1 is mainly detected at the connection between the adjacent frames.

[0066] In addition, it should be understood that in other embodiments, the frame 1 may also have only one frame, and the frame itself is an annular structure. In this case, the annular hole of the annular structure is the accommodating cavity 13.

[0067] When the frame 1 includes a plurality of frames 1a, the avoidance groove 14a may be provided on any frame, for example, Figure 1Taking the illustrated embodiment as an example, the avoidance groove 14a is provided on both the first frame 15 and the third frame 17. In some scenarios, along the arrangement direction of the first frame 15 and the third frame 17, the avoidance groove 14a provided on the first frame 15 may penetrate the first frame 15, wherein the surface of the first frame 15 close to the third frame 17 is the inner surface of the accommodating cavity 13, and the surface of the first frame 15 away from the third frame 17 is the outer surface of the frame body 1. In addition, in some scenarios, along the arrangement direction of the first frame 15 and the third frame 17, the avoidance groove 14a provided on the third frame 17 may also penetrate the third frame 17, wherein the surface of the third frame 17 close to the first frame 15 is the inner surface of the accommodating cavity 13, and the surface of the third frame 17 away from the first frame 15 is the outer surface of the frame body 1.

[0068] In one embodiment, the frame 1 and the plate 21 can be sealed by welding, for example, they can be welded together by friction stir welding. The joint 22 and the groove wall of the avoidance groove 14a can also be sealed by welding.

[0069] like Figure 3 and Figure 4 As shown, in one embodiment, a avoidance hole 14b is provided on the outer surface of the frame 1, and the avoidance groove 14a penetrates to the bottom surface of the avoidance hole 14b along the direction from the inner surface of the accommodating cavity 13 to the outer surface of the frame 1; the avoidance groove 14a and the avoidance hole 14b are connected to form an avoidance space 14. The avoidance groove 14a forms a first window 141 on the inner surface of the accommodating cavity 13, and the avoidance hole 14b forms a second window 142 on the outer surface of the frame; in the arrangement direction of the first window 141 and the second window 142, the surface of the joint 22 away from the accommodating cavity is located between the first window 141 and the second window 142. That is, along the direction from the first window 141 to the second window 142, the joint 22 does not protrude from the avoidance groove 14a. In this way, the space occupied by the pallet 10 in the whole vehicle can be reduced, and the joint 22 can be protected by the frame 1, effectively preventing the joint 22 from being hit by foreign objects.

[0070] In one embodiment, when the frame 1 is provided with an avoidance hole 14b, only a portion of the joint 22 may be disposed in the avoidance groove 14a, and a portion of the joint 22 may also be located in the avoidance hole 14b, that is, in this case, only a portion of the joint 22 is located in the avoidance groove 14a. In this embodiment, when the joint 22 is sealed and connected to the side wall of the avoidance hole 14b, it also means that the joint 22 is sealed and connected to the groove wall of the avoidance groove 14a.

[0071] In one embodiment, the number of joints 22 may be multiple, and the number of avoidance grooves 14a and the number of joints may be the same. In this case, one joint 22 may be provided in one avoidance groove 14a, and the joint 22 is sealed and connected to the groove wall of the avoidance groove 14a in which it is located. Of course, when the number of joints 22 is multiple, the number of avoidance grooves 14a may be less than the number of joints 2. In this case, multiple joints 22 may be provided in one avoidance groove 14a. In this case, in addition to being sealed and connected to the groove wall of the avoidance groove 14a in which it is located, adjacent joints 22 are also sealed and connected.

[0072] like Figure 5 As shown, in one embodiment, the plate body 21 includes a plurality of sub-plates 211, each sub-plate 211 is connected as a whole, and the fluid channels of each sub-plate 211 are isolated from each other; there are multiple connectors 22, and each sub-plate 211 corresponds to at least one connector 22; the sub-plate 211 is connected to the connector 22 corresponding to it; the inlet of the connector 22 and the outlet of the connector 22 are both connected to the fluid channel of the corresponding sub-plate 211. In this way, the fluid entering the corresponding sub-plate 211 can be individually controlled, and then more accurate temperature control of each area of ​​the tray 10 can be achieved. Of course, in other embodiments, at least one sub-plate in each sub-plate 211 can be separated from the other sub-plates.

[0073] One sub-plate 211 usually corresponds to one connector 22. In addition, the connector 22 may be a whole, or the connector 22 may include two independent sub-connectors 221, one of which is provided with an inlet, and the other of which is provided with an outlet.

[0074] exist Figure 5 In the illustrated embodiment, the plate body 21 includes two sub-plates 211, wherein the joint 22 on the first sub-plate 211 (the joint 22 is defined as the first joint) is an integral whole, and the joint 22 on the second sub-plate 211 includes two mutually independent sub-joints 221 (the two sub-joints 221 are defined as the second joints). When the joint 22 includes two second joints, the two second joints may be arranged in one avoidance groove 14a, in which case the two second joints are not only sealed to the groove wall of the avoidance groove 14a in which they are located, but also sealed to each other. Alternatively, only one second joint may be arranged in one avoidance groove 14a, in which case the second joint is sealed to the groove wall of the avoidance groove 14a in which it is located.

[0075] In addition, Figure 5In the illustrated embodiment, two joints 22 are arranged at intervals along the front-to-back direction, wherein the first frame 15 and the third frame 17 are both provided with an escape groove 14a, wherein the first joint 22 is located in the escape groove 14a of the first frame 15, and the second joint 22 is located in the escape groove 14a of the third frame 17. Moreover, one second joint 22 is provided in one escape groove 14a.

[0076] like Figure 4 and Figure 6 As shown, in one embodiment, the tray 10 further includes a connecting plate 4, which connects the joint 22, the groove wall of the avoidance groove 14a and the plate body 21. The connecting plate 4 and the joint 22 are sealed by a first sealing structure 5; and / or, the connecting plate 4 and the groove wall of the avoidance groove 14a are sealed by a second sealing structure 6; and / or, the connecting plate 4 and the plate body 21 are sealed by a third sealing structure 7.

[0077] The connecting plate 4 is equivalent to a patching plate, at least a part of which can be arranged between the joint 21 and the groove wall of the avoidance groove 14a, so that it can be avoided that the gap between the joint 22 and the groove wall of the avoidance groove 14a is too large, which makes it difficult to seal between the two; at this time, the sealing between the connecting plate 4 and the groove wall of the avoidance groove 14a is achieved by the second sealing structure 6. Similarly, at least a part of the connecting plate 4 can also be arranged between the joint 22 and the plate body 21, so that it can be avoided that the gap between the joint 22 and the plate body 21 is too large, which makes it difficult to seal between the two; at this time, the sealing between the connecting plate 4 and the plate body 21 is achieved by the third sealing structure 7. In addition, the sealing between the connecting plate 4 and the joint 22 is achieved by the first sealing structure 5. That is, in this embodiment, the joint 22 is sealed to connect the groove wall of the avoidance groove 14a and the plate body 21 through the connecting plate 4, the first sealing structure 5, the second sealing structure 6 and the third sealing structure 7.

[0078] In one embodiment, the first sealing structure 5 is a welding structure, that is, the joint 22 and the connecting plate 4 are connected together by welding; and / or, the second sealing structure 6 is a welding structure, that is, the connecting plate 4 and the groove wall of the avoidance groove 14a are connected together by welding; and / or, the third sealing structure 7 is a welding structure, that is, the connecting plate 4 and the plate body 21 are connected together by welding. Of course, any one of the first sealing structure 5, the second sealing structure 6 and the third sealing structure 7 can also be a sealing member such as a rubber pad.

[0079] like Figure 4As shown, in one embodiment, the avoidance groove 14a forms a first window 141 on the inner surface of the accommodating cavity 13, and the avoidance hole 14b forms a second window 142 on the outer surface of the frame body 1; the joint 22 includes a first connection portion 222 and a second connection portion 223, the first connection portion 222 is connected to the plate body 21, the second connection portion 223 is connected to the first connection portion 222, and the second connection portion 223 is spaced apart from the plate body 21; the second connection portion 223 extends along the direction from the first window 141 to the second window 142, and the second connection portion 223 is located in the avoidance space 14; that is, the joint 22 is an L-shaped structure.

[0080] like Figure 4 As shown, in one embodiment, when the avoidance groove 14 a forms a first window 141 on the inner surface of the accommodating cavity 13 , at least a portion of the first connecting portion 222 may be located in the accommodating cavity 13 .

[0081] In addition, a portion of the second connecting portion 223 may also be located in the accommodating cavity 13 .

[0082] like Figure 6 As shown, the connecting plate 4 is provided with a mounting hole 41, and the mounting hole 41 penetrates the connecting plate 4 along the direction from the first window 141 to the second window 142; the second connecting portion 223 is penetrated in the mounting hole 41. Among them, the side wall of the mounting hole 41 can be a closed loop structure (refer to Figure 6 ), or an open-loop structure (reference Figure 7 The first sealing structure 5 sealing the joint 22 and the connecting plate 4 actually means that the first sealing structure 5 seals the second connecting portion 223 and the connecting plate 4 .

[0083] When the mounting hole 41 is a closed-loop structure, during the assembly process, the cold plate 2 and the frame 1 can be connected together first (at this time, the joint 22 and the side wall of the avoidance groove 14a are not connected), and then the connecting plate 4 is pushed into the avoidance groove 14a along the length direction of the avoidance groove 14a and from the outside to the inside (for example, the direction from the first frame 15 to the third frame 17), and the second connecting portion 223 is passed through the mounting hole 41; then the connecting joint 22 and the connecting plate 4 are sealed, and the groove wall of the avoidance groove 14a and the connecting plate 4 are sealed.

[0084] like Figure 4 As shown, in one embodiment, the connecting plate 4 is located in the avoidance hole 14b and contacts the bottom surface of the avoidance hole 14b. In the manner of pushing the connecting plate 4 into the avoidance hole 14b along the direction from the second window 142 to the first window 141, when the connecting plate 4 contacts the bottom surface of the avoidance hole 14b, the placement position of the connecting plate 4 in the avoidance hole 14b meets the requirements. In this embodiment, by setting the bottom surface of the avoidance hole 14b, the connecting plate 4 can be easily pushed to a suitable position.

[0085] After assembly, the hole wall of the avoidance hole 14b is also in sealed contact with the plate body 21, wherein the plate body 21 may be connected to the outer surface of the avoidance hole 14b. That is, in addition to closing the opening formed on the first surface of the avoidance groove 14a, the plate body 21 also extends outward to the side wall of the avoidance hole 14b. In addition, the hole wall of the avoidance hole 14b and the groove wall of the avoidance groove 14a are both side walls of the avoidance space 14.

[0086] like Figure 3 and Figure 4 As shown, in one embodiment, the avoidance groove 14a extends to at least a portion of the side wall of the avoidance hole 14b; at least a portion of the joint 22 is located in the avoidance hole 14b. The avoidance groove 14a extends along the direction from the inner surface of the accommodating cavity 13 to the outer surface of the frame body 1 (i.e., along the direction from the first window 141 to the second window 142) to the bottom surface of the avoidance hole 14b. When the avoidance groove 14a extends to the side wall of the avoidance hole 14b, the avoidance groove 14a and a portion of the avoidance hole 14b overlap to form an overlapping space. When the joint 22 is located in the avoidance hole 14b, the joint 22 is actually located in the overlapping space. When the avoidance groove 14a extends to the side wall of the avoidance hole 14b, the area of ​​the first surface located on the side wall of the avoidance hole 14b also forms an opening of the avoidance groove 14a. During assembly, the joint 22 is placed in the overlapping space from the opening formed by the avoidance groove 14a on the first surface.

[0087] In addition, if Figure 4 As shown, a portion of the second connection portion 223 is located in the overlapping space.

[0088] like Figure 6 As shown, in one embodiment, the connecting plate 4 includes a first plate 43 and a second plate 44, and the mounting hole 41 is provided on the first plate 43; the second plate 44 is connected to one end of the first plate 43 close to the cold plate 2, and the first plate 43 and the second plate 44 are arranged along the direction in which the second connecting portion 223 is away from the first connecting portion 222, wherein the direction in which the second connecting portion 223 is away from the first connecting portion 222 is the direction from the first window 141 to the second window 142. The connecting plate 4 is an L-shaped structure, and during assembly, the second plate 44 and the plate body 21 may also be sealed, for example, the two are connected by welding. It should be understood that in other embodiments, the connecting plate 4 may also be only the first plate 43, in which case the first plate 43 and the plate body 21 are sealed.

[0089] like Figure 4 As shown, the connecting plate 4 is located in the avoidance hole 14b, the first plate 43 is connected to the bottom surface of the avoidance hole 14b, and the second plate 44 is connected to the inner surface of the avoidance hole 14b.

[0090] like Figure 4As shown, in one embodiment, one end of the second connection portion 223 away from the first connection portion 222 protrudes from the mounting hole 41, that is, along the direction from the first window 141 to the second window 142, the second connection portion 223 protrudes from the mounting hole 41. In addition, the length of the second connection portion 223 protruding from the mounting hole 41 is 2mm-3mm. That is, the distance between the surface of the second connection portion 223 close to the second window 142 and the surface of the first plate 43 close to the second window 142 is 2mm-3mm.

[0091] It should be understood that the above-mentioned related designs can also be replaced by other methods, such as:

[0092] like Figure 7 As shown, in this embodiment, the above-mentioned mounting hole 41 is replaced by a mounting groove 42, that is, at this time, the mounting groove 42 can be regarded as an open-loop mounting hole 41, and the second connecting portion 223 is penetrated in the mounting groove 42. The bottom surface of the mounting groove 42 can be located between the second connecting portion 223 and the plate body 21, that is, the mounting groove 42 is arranged on the upper surface of the connecting plate 4. In addition, in the arrangement direction of the second connecting portion 223 and the plate body 21, the side wall of the mounting groove 42 does not overlap with the second connecting portion 223, and at this time, the second connecting portion 223 can be inserted into the mounting groove 42 from the opening of the mounting groove 42 located on the upper surface of the connecting plate 4.

[0093] Among them, “in the arrangement direction of the second connection part 223 and the cold plate 2, the side wall of the mounting groove 42 does not overlap with the second connection part 223” may mean that in an orthographic projection on a plane perpendicular to the arrangement direction of the second connection part 223 and the cold plate 2, the projection of the side wall of the mounting groove 42 and the projection of the second connection part 223 do not overlap.

[0094] When assembling the pallet 10, in addition to assembling in the above manner, the connecting plate 4 can also be first connected to the plate body 21 (in this case, the connecting plate 4 can also be sealed and connected to the joint 22), and then the connecting plate 4 can move along the direction from the first surface 11 to the second surface 12 with the cold plate 2 to approach the frame 1, and finally move into the avoidance groove 14a; then, the frame 1 and the plate body 21, the connecting plate 4 and the groove wall of the avoidance groove 14a are connected. In addition, when the side wall of the mounting hole 41 is an open-loop structure, the welding deformation and stress at the mounting groove 42 can also be reduced, the production process can be optimized, and the production efficiency can be improved. In addition, in this embodiment, the side of the second connecting portion 223 facing away from the plate body 21 can be sealed and connected to the groove wall of the avoidance groove 14a by welding or the like.

[0095] In addition, when the connecting plate 4 includes the first plate 43 and the second plate 44, the mounting groove 42 is actually provided on the first plate 43. In addition, one end of the second connecting portion 223 away from the first connecting portion 222 protrudes out of the mounting groove 42, that is, along the direction from the first window 141 to the second window 142, the second connecting portion 223 protrudes out of the mounting groove 42, and the length of the second connecting portion 223 protruding out of the mounting groove 42 is 2 mm-3 mm.

[0096] The embodiment of the utility model further provides a battery pack, which includes the tray 10 described in any one of the above embodiments. The battery pack also includes a battery module, and the battery is installed in the accommodating space 3.

[0097] An embodiment of the utility model further provides an electric device, which includes the battery pack described in the above embodiment, wherein the electric device may be a vehicle, an energy storage device, an aircraft, etc.

[0098] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0099] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pallet, characterized in that: Including frame and cold plate; The cold plate includes a plate body and a joint, wherein the joint is connected to the plate body; The plate body is connected to the frame body; The frame body is provided with an avoidance groove, and the opening of the avoidance groove faces the plate body; The joint is located in the avoidance groove.

2. The pallet according to claim 1, characterized in that: Along the arrangement direction of the frame body and the plate body, the frame body has a first surface and a second surface that are arranged opposite to each other; The frame body is provided with a receiving cavity, and the receiving cavity passes through the first surface and the second surface; The plate body is connected to the first surface and closes the accommodating cavity; The avoidance groove is arranged on the first surface and penetrates to the inner surface of the accommodating cavity.

3. The pallet according to claim 2, characterized in that: An avoidance hole is provided on the outer surface of the frame body, and the avoidance groove penetrates to the bottom surface of the avoidance hole along the direction from the inner surface of the accommodating cavity to the outer surface of the frame body; The avoidance groove forms a first window on the inner surface of the accommodating cavity, and the avoidance hole forms a second window on the outer surface of the frame body; In the arrangement direction of the first window and the second window, a surface of the joint facing away from the accommodating cavity is located between the first window and the second window.

4. The pallet according to claim 2, characterized in that: An avoidance hole is provided on the outer surface of the frame body, and the avoidance groove penetrates to the bottom surface of the avoidance hole along the direction from the inner surface of the accommodating cavity to the outer surface of the frame body.

5. The pallet according to claim 1, characterized in that: The joint is sealed and connected to the groove wall of the avoidance groove.

6. The pallet according to claim 1, characterized in that: The number of the joints is plural.

7. The pallet according to claim 6, characterized in that: The plate body includes a plurality of sub-plates, and the fluid channels of the sub-plates are isolated from each other; Each of the daughter boards corresponds to at least one of the connectors; The sub-board is connected to its corresponding connector; The inlet of the joint and the outlet of the joint are both communicated with the fluid channel of the corresponding sub-plate.

8. The pallet according to claim 1, characterized in that: The tray further includes a connecting plate and a first sealing structure, wherein the first sealing structure seals and connects the joint and the connecting plate.

9. The pallet according to claim 8, characterized in that The tray further includes a second sealing structure, which seals and connects the connecting plate and the groove wall of the avoidance groove.

10. The pallet according to claim 8, characterized in that The tray further includes a third sealing structure, and the third sealing structure seals and connects the connecting plate and the plate body.

11. The pallet according to claim 9, characterized in that The first sealing structure is a welding structure; and / or, The second sealing structure is a welding structure.

12. The pallet according to claim 10, characterized in that The first sealing structure is a welding structure; and / or, The third sealing structure is a welding structure.

13. The pallet according to claim 1, characterized in that The joint comprises a first connection part and a second connection part, the first connection part is connected to the plate body, the second connection part is connected to the first connection part and is spaced apart from the plate body; At least a portion of the second connecting portion is located in the avoidance groove.

14. The pallet according to claim 13, characterized in that The frame body is provided with a receiving cavity, the avoidance groove forms a first window on the inner surface of the receiving cavity, and at least a part of the first connecting portion is located in the receiving cavity.

15. The pallet according to claim 13, characterized in that An avoidance hole is provided on the outer surface of the frame, and the avoidance groove penetrates to the bottom surface of the avoidance hole; A portion of the second connection portion is located in the avoidance groove, and a portion of the second connection portion is located in the avoidance hole.

16. The pallet according to claim 13, characterized in that The tray further comprises a connecting plate, wherein the connecting plate is respectively connected to the joint, the groove wall of the avoidance groove and the plate body; The connecting plate is provided with a mounting hole or a mounting groove penetrating through the connecting plate; The second connecting portion is inserted into the mounting hole or the mounting groove.

17. The pallet according to claim 16, characterized in that The bottom surface of the mounting groove is located between the second connecting portion and the plate body, and in the arrangement direction of the second connecting portion and the plate body, the side wall of the mounting groove does not overlap with the second connecting portion.

18. The pallet according to claim 16, characterized in that The connecting plate comprises a first plate and a second plate, and the mounting hole or the mounting groove is arranged on the first plate; The second plate is connected to one end of the first plate close to the cold plate, and the first plate and the second plate are arranged along a direction in which the second connecting portion is away from the first connecting portion.

19. The pallet according to claim 16, characterized in that One end of the second connection portion away from the first connection portion protrudes out of the mounting hole or the mounting groove.

20. The pallet according to claim 19, characterized in that The length of the second connection portion protruding from the mounting hole or the mounting groove is 2mm-3mm.

21. The pallet according to claim 18, characterized in that An avoidance hole is provided on the outer surface of the frame, and the avoidance groove penetrates to the bottom surface of the avoidance hole; A portion of the second connection portion is located in the avoidance groove, and a portion of the second connection portion is located in the avoidance hole; The first plate is connected to the bottom surface of the avoidance hole, and the second plate is connected to the inner surface of the avoidance hole.

22. The pallet according to claim 1, characterized in that An avoidance hole is provided on the outer surface of the frame, and the avoidance groove penetrates to the bottom surface of the avoidance hole; The tray further comprises a connecting plate, wherein the connecting plate is respectively connected to the joint, the groove wall of the avoidance groove and the plate body; The connecting plate is located in the avoidance hole and abuts against the bottom surface of the avoidance hole.

23. The pallet according to claim 1, characterized in that The outer surface of the frame is provided with an avoidance hole; The avoidance groove penetrates to the bottom surface of the avoidance hole and extends to at least a portion of the side wall of the avoidance hole; At least a portion of the joint is located in the avoidance hole.

24. A battery pack, characterized in that: A pallet comprising any one of claims 1 to 23.

25. An electrical device, characterized in that: A battery pack comprising the battery pack of claim 24.

Images