Cooler, battery pack tray, battery pack and vehicle

Abstract

The utility model discloses a cooler, a battery pack tray, a battery pack and a vehicle. The temperature equalizing plate is suitable for being arranged on the side, facing a battery module, of the cooling plate, the temperature equalizing plate is connected with the cooling plate, a mounting gap is formed between the edge of the cooling plate and the temperature equalizing plate, and the mounting gap is used for being connected with a tray beam of a battery pack tray. According to the embodiment of the utility model, the connecting strength of the cooler and the tray beam is higher, and the sealing property of the connecting part of the cooler and the tray beam is better, so that the sealing property of the battery pack is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a cooler, a battery pack tray, a battery pack and a vehicle. Background Art

[0002] In related technologies, a cooler is usually arranged in a battery pack, and the cooler is used to cool battery modules in the battery pack to reduce the temperature of the battery modules and avoid too high a temperature of the battery pack. However, due to the unreasonable connection structure between the cooler and the tray beam of the battery pack tray in related technologies, the connection strength between the cooler and the tray beam is relatively low, and the sealing performance at the connection between the cooler and the tray beam is poor. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, an object of the utility model is to provide a cooler, the connection strength between the cooler and the tray beam is higher, and the sealing performance at the connection between the cooler and the tray beam is better, so as to improve the sealing performance of the battery pack.

[0004] The utility model also provides a battery pack tray with the above cooler.

[0005] The utility model also provides a battery pack with the above battery pack tray.

[0006] The utility model also provides a vehicle with the above battery pack.

[0007] To achieve the above object, according to a first aspect embodiment of the utility model, a cooler is provided, including: a cooling plate; a heat dissipation plate, the heat dissipation plate is adapted to be arranged on a side of the cooling plate facing the battery module, the heat dissipation plate is connected to the cooling plate, and an installation gap is formed between an edge of the cooling plate and the heat dissipation plate, and the installation gap is used for connecting with a tray beam of a battery pack tray.

[0008] The connection strength between the cooler according to the embodiment of the utility model and the tray beam is higher, and the sealing performance at the connection between the cooler and the tray beam is better, so as to improve the sealing performance of the battery pack.

[0009] According to some embodiments of the utility model, the installation gaps are arranged on opposite sides in the width direction of the cooler, and the installation gaps are used for connecting with side beams of the battery pack tray.

[0010] According to some embodiments of the present utility model, the cooling plate includes: a plate body portion, the plate body portion is connected to the heat pipe and jointly defines a coolant flow channel; a bending portion, one end of the bending portion is connected to the plate body portion, and the bending portion bends away from the heat pipe relative to the plate body portion; an installation portion, the installation portion is connected to the other end of the bending portion, so that the installation portion and the plate body portion are arranged offset in the thickness direction of the cooling plate, and an installation gap is formed between the installation portion and the heat pipe.

[0011] According to an embodiment of the second aspect of the present utility model, a battery pack tray is provided, the battery pack tray includes: a tray beam; a cooler according to the embodiment of the first aspect of the present utility model, the cooler is connected to the tray beam and adjacent to the lower side of the tray beam, and the cooler constitutes the bottom wall of the battery pack tray.

[0012] For the battery pack tray according to the embodiment of the second aspect of the present utility model, by using the cooler according to the embodiment of the first aspect of the present utility model, the connection strength between the cooler and the tray beam is higher, and the sealing performance at the connection between the cooler and the tray beam is better, thereby improving the sealing performance of the battery pack.

[0013] According to some embodiments of the present utility model, the tray beam includes: two side beams, the two side beams are arranged on opposite sides in the width direction of the battery pack tray, and a part of the side beam extends into the installation gap and is connected to the cooler; a front beam, both ends of the front beam are respectively connected to one end of the two side beams; a rear beam, both ends of the rear beam are respectively connected to the other end of the two side beams, and the rear beam is provided with a support portion, the support portion supports on the lower side of the cooler and is respectively connected to the two side beams.

[0014] According to some embodiments of the present utility model, the side beam includes: a main body portion, the main body portion at least partially extends in the height direction of the battery pack tray; a connecting portion, the connecting portion is arranged on the side of the main body portion facing the cooler, and the connecting portion extends in the width direction of the battery pack tray, and the connecting portion is inserted into the installation gap.

[0015] According to some embodiments of the present utility model, the connecting portion is adjacent to the lower side edge of the main body portion, and the lower side edge of the main body portion extends downward beyond the lower side surface of the connecting portion.

[0016] According to some embodiments of the present utility model, the battery pack tray further includes: a sealant layer, the sealant layer is at least arranged between one side in the thickness direction of the connecting portion and the inner wall of the installation gap to seal the side beam and the cooler.

[0017] According to some embodiments of the present utility model, the connecting portion is provided with a plurality of first positioning holes, the cooler is provided with a plurality of second positioning holes, and the plurality of first positioning holes and the plurality of second positioning holes are arranged in one-to-one correspondence for fixing positioning pins.

[0018] According to some embodiments of the present utility model, the connecting portion is provided with a plurality of mounting holes for fixing fasteners, and the fasteners sequentially pass through the cooling plate, the mounting holes and the heat dissipation plate to fix the connecting portion and the cooler.

[0019] According to some embodiments of the present utility model, the battery pack tray further includes: a mounting bracket, the mounting bracket is disposed above the cooler, and the mounting bracket is provided with a plurality of avoidance holes, and the fasteners extend into the avoidance holes.

[0020] According to some embodiments of the present utility model, the battery pack tray further includes: a reinforcing beam, both ends of the reinforcing beam are respectively connected to the two side beams and the reinforcing beam is adjacent to the front beam, the reinforcing beam is connected to the cooler; a plurality of reinforcing plates, the plurality of reinforcing plates are disposed on the lower side of the cooler, and the reinforcing plates are connected to the two side beams.

[0021] According to a third aspect embodiment of the present utility model, a battery pack is provided, the battery pack includes: a battery module; the cooler according to the first aspect embodiment of the present utility model or the battery pack tray according to the second aspect embodiment of the present utility model.

[0022] For the battery pack according to the third aspect embodiment of the present utility model, by using the cooler according to the first aspect embodiment of the present utility model or the battery pack tray according to the second aspect embodiment of the present utility model, the connection strength between the cooler and the tray beam is higher, and the sealing performance at the connection portion with the tray beam is better, thereby improving the sealing performance of the battery pack.

[0023] According to a fourth aspect embodiment of the present utility model, a vehicle is provided, the vehicle includes the battery pack according to the third aspect embodiment of the present utility model.

[0024] For the vehicle according to the fourth aspect embodiment of the present utility model, by using the battery pack according to the third aspect embodiment of the present utility model, the overall connection strength of the battery pack is higher and the sealing performance is better.

[0025] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0026] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:

[0027] Figure 1 is a schematic structural view of a battery pack tray according to an embodiment of the present utility model;

[0028] Figure 2 is a schematic structural view of the battery pack tray from another perspective according to an embodiment of the present utility model;

[0029] Figure 3 is an exploded view of the battery pack tray according to an embodiment of the present utility model;

[0030] Figure 4 is a cross-sectional view of the battery pack tray according to an embodiment of the present utility model;

[0031] Figure 5 is Figure 4 a detailed view of part A in

[0032] Figure 6 is an exploded view of a cooler according to an embodiment of the present utility model;

[0033] Figure 7 is Figure 6 a detailed view of part B in

[0034] Figure 8 is an exploded view of a side beam and a cooling plate according to an embodiment of the present utility model;

[0035] Figure 9 is a schematic structural view of a side beam according to an embodiment of the present utility model;

[0036] Figure 10 is a schematic structural view of the side beam from another perspective according to an embodiment of the present utility model.

[0037] Reference numerals:

[0038] 1, cooler; 2, battery pack tray;

[0039] 100, cooling plate; 101, installation gap; 110, plate body part; 120, bending part; 130, installation part; 140, second positioning hole;

[0040] 200, heat spreader;

[0041] 300, tray beam; 310, side beam; 311, main body part; 312, connecting part; 313, lifting lug sleeve; 314, installation hole; 320, front beam; 330, rear beam; 331, supporting part; 340, first positioning hole;

[0042] 400, adapter block;

[0043] 500. Fastener;

[0044] 600. Sealant layer;

[0045] 700. Reinforcing beam; 800. Reinforcing plate. Specific embodiments

[0046] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0047] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0048] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features.

[0049] In the description of the present utility model, "a plurality" means two or more, and "several" means one or more.

[0050] The cooler 1 according to an embodiment of the present utility model will be described below with reference to the drawings.

[0051] As Figures 1 - 10 shown, the cooler 1 according to an embodiment of the present utility model includes a cooling plate 100 and a heat spreader 200.

[0052] The heat spreader 200 is adapted to be disposed on a side of the cooling plate 100 facing the battery module. The heat spreader 200 is connected to the cooling plate 100, and an installation gap 101 is formed between the edge of the cooling plate 100 and the heat spreader 200. The installation gap 101 is used to connect with the tray beam 300 of the battery pack tray 2.

[0053] Among them, the cooling plate 100 in the embodiment of the present utility model can be processed from steel, and the heat spreader 200 can be processed from aluminum, that is, the cooler 1 is a steel-aluminum composite body.

[0054] Among them, the front-back direction in the drawings is the front-back direction of the battery pack tray 2, that is, the length direction of the battery pack tray 2, the left-right direction is the left-right direction of the battery pack tray 2, that is, the width direction of the battery pack tray 2, and the up-down direction is the up-down direction of the battery pack tray 2.

[0055] According to the cooler 1 of the embodiment of the present invention, by arranging the heat dissipation plate 200 on the side of the cooling plate 100 facing the battery module, the cooler 1 can evenly cool the battery module through the heat dissipation plate 200, and the cooling effect of the cooler 1 on the battery module is better, and the uneven temperature distribution of the battery module is more effectively avoided.

[0056] In addition, the heat dissipation plate 200 is connected to the cooling plate 100, and an installation gap 101 is formed between the edge of the cooling plate 100 and the heat dissipation plate 200. The installation gap 101 is used to connect with the tray beam 300 of the battery pack tray 2. Specifically, a part of the structure on the tray beam 300 can be inserted into the installation gap 101, that is, the heat dissipation plate 200 and the cooling plate 100 can be arranged on the opposite sides of a part of the structure of the tray beam 300 to clamp a part of the structure of the tray beam 300. In this way, the contact area between the tray beam 300 and the cooler 1 can be larger, and the tray beam 300 and the cooler 1 can support each other, thereby improving the connection strength between the cooler 1 and the tray beam 300.

[0057] Moreover, a part of the structure of the tray beam 300 is inserted into the installation gap 101, the cooling plate 100 can be attached to one side of a part of the structure of the tray beam 300, and the heat dissipation plate 200 can be attached to the other side of a part of the structure of the tray beam 300. Furthermore, the cooling plate 100 and the heat dissipation plate 200 can be used to seal the tray beam 300 at the same time, which more effectively improves the sealing performance between the cooler 1 and the tray beam 300 and is beneficial to improving the sealing performance of the battery pack.

[0058] In this way, the connection strength between the cooler 1 of the embodiment of the present invention and the tray beam 300 is higher, and the sealing performance at the connection with the tray beam 300 is better, thereby improving the sealing performance of the battery pack.

[0059] In some specific embodiments of the present invention, as Figure 4 shown, the installation gaps 101 are arranged on the opposite sides in the width direction of the cooler 1, and the installation gaps 101 are used to connect with the side beam 310 of the battery pack tray 2.

[0060] That is to say, side beams 310 on both sides in the width direction of the battery pack tray 2 are connected to the installation gap 101. It can be understood that the side beams 310 of the battery pack tray 2 extend along the length direction of the battery pack tray 2, and the length dimension of the side beams 310 is relatively large. By connecting the side beams 310 to the installation gap 101, the connection area between the side beams 310 and the installation gap 101 can be relatively large, further improving the connection strength between the cooler 1 and the tray beam 300. Moreover, after the side beams 310 and the installation gap 101 are connected, the two sides in the width direction of the tray beam 300 can be sealed with the cooler 1, further improving the sealing effect between the cooler 1 and the tray beam 300.

[0061] In some specific embodiments of the present utility model, as Figure 7 shown, the cooling plate 100 includes a plate body portion 110, a bending portion 120, and an installation portion 130.

[0062] The plate body portion 110 is connected to the heat pipe 200 and jointly defines a coolant flow channel. One end of the bending portion 120 is connected to the plate body portion 110, and the bending portion 120 is bent away from the heat pipe 200 relative to the plate body portion 110. The installation portion 130 is connected to the other end of the bending portion 120, so that the installation portion 130 and the plate body portion 110 are arranged offset in the thickness direction of the cooling plate 100, and an installation gap is formed between the installation portion 130 and the heat pipe 200.

[0063] For example, grooves can be formed on the plate body portion 110. By connecting the heat pipe 200 to the plate body portion 110, the heat pipe 200 can be used to cover the grooves. The heat pipe 200 and the grooves on the plate body portion 110 can jointly define a coolant flow channel, and the coolant can circulate in the coolant flow channel, so that the heat of the battery pack can be taken away by the coolant to cool the battery pack.

[0064] Among them, by providing the bending portion 120, the bending portion 120 is located between the plate body portion 110 and the installation portion 130, and both ends of the bending portion 120 are respectively connected to the plate body portion 110 and the installation portion 130. In this way, the cooling plate 100 can present a stepped shape, that is, the installation portion 130 and the plate body portion 110 can be arranged offset in the thickness direction of the cooling plate 100, so that after the heat pipe 200 and the plate body portion 110 are connected, the heat pipe 200 and the installation portion 130 can be spaced apart, and thus an installation gap 101 can be formed between the heat pipe 200 and the installation portion 130, that is, the heat pipe 200, the bending portion 120, and the installation portion 130 can jointly define the installation gap 101, and the cross section of the installation gap 101 can form a "C" shape, which is convenient for connecting the cooler 1 and the tray beam 300 and is beneficial to improving the connection strength and sealing performance between the cooler 1 and the tray beam 300.

[0065] In addition, it should be noted that the installation part 130 can be arranged in parallel with the plate body part 110, and the bending angle of the bending part 120 relative to the plate body part 110 can be 90° or greater than 90°.

[0066] Next, the battery pack tray 2 according to the embodiments of the present invention will be described with reference to the accompanying drawings.

[0067] As Figures 1 - 10 shown, the battery pack tray 2 includes a tray beam 300 and a cooler 1 according to the above embodiments of the present invention. The cooler 1 is connected to the tray beam 300 and adjacent to the lower side of the tray beam 300, and the cooler 1 constitutes the bottom wall of the battery pack tray 2.

[0068] That is to say, in the embodiments of the present invention, the lower placement of the cooler 1 constitutes the bottom wall of the battery pack tray 2. The cooler 1 can not only cool the battery module from the lower side of the battery module, but also support the battery module from the lower side of the battery module.

[0069] Moreover, with such an arrangement, the cooler 1 is located on the lower side of the battery pack, so the maintenance opening of the battery pack can be arranged on the upper side, and the upper placement of the maintenance opening of the battery pack will not interfere with the position of the cooler 1, the layout is more reasonable, and it can solve the problem of seal failure caused by impact when the maintenance opening is placed on the lower side, further improving the sealing effect of the battery pack.

[0070] For the battery pack tray 2 according to the above embodiments of the present invention, by using the cooler 1 according to the above embodiments of the present invention, the connection strength between the cooler 1 and the tray beam 300 is higher, and the sealing performance at the connection between the cooler 1 and the tray beam 300 is better, thereby improving the sealing performance of the battery pack.

[0071] In some specific embodiments of the present invention, as Figures 1 - 4 shown, the tray beam 300 includes two side beams 310, a front beam 320, and a rear beam 330. Among them, the two side beams 310, the front beam 320, and the rear beam 330 can all be processed and made of steel.

[0072] Among them, the side beam 310, the front beam 320, and the rear beam 330 can all be connected to the heat spreader 200 by brazing to ensure the integrity of the heat spreader 200. In addition, between the front beam 320 and the side beam 310, and between the rear beam 330 and the side beam 310, they can all be connected by carbon dioxide shielded welding to ensure that the overall structural strength of the tray beam 300 can be relatively high.

[0073] Specifically, two side beams 310 are provided on opposite sides in the width direction of the battery pack tray 2. A part of the side beam 310 extends into the installation gap and is connected to the cooler 1. Two ends of the front beam 320 are respectively connected to one end of the two side beams 310, and two ends of the rear beam 330 are respectively connected to the other end of the two side beams 310. Moreover, the rear beam 330 is configured with a support portion 331, and the support portion 331 supports the lower side of the cooler 1 and is respectively connected to the two side beams 310.

[0074] That is to say, the two side beams 310, the front beam 320 and the rear beam 330 can form a "mouth" - shaped frame. The installation gap 101 of the cooler 1 can be respectively connected to the two side beams 310. Of course, both ends in the length direction of the cooler 1 can also be respectively connected to the front beam 320 and the rear beam 330.

[0075] In addition, by configuring the support portion 331 on the rear beam 330, the support portion 331 supports the lower side of the cooler 1 and is respectively connected to the two side beams 310. In this way, the connection strength between the rear beam 330 and the side beam 310 can be improved. Moreover, the support portion 331 can support the cooler 1 from the lower side of the cooler 1, further improving the connection strength between the cooler 1 and the tray beam 300. At the same time, the support portion 331 can seal the rear side of the cooler 1, so that the sealing performance at the connection between the rear side of the cooler 1 and the rear beam 330 is better.

[0076] In some embodiments, as Figure 1 shown, a transfer block 400 can also be provided on the tray beam 300. The transfer block 400 can be provided with a water inlet and a water outlet. The transfer block 400 is installed on the front beam 320, and the water inlet and the air outlet are respectively communicated with the cooler 1. In this way, the coolant inlet and the coolant outlet of the coolant channel can be led out by using the transfer block 400, so as to facilitate the connection of the coolant channel with external components. For example, the water inlet and the water outlet of the transfer block 400 can be respectively connected to a water pump. Thus, the coolant can be driven by the water pump to circulate in the coolant channel, which is beneficial to accelerating the rate of heat exchange between the coolant and the battery module, effectively reducing the temperature of the battery pack, avoiding the over - high temperature of the battery pack, enabling the battery pack to maintain a good operating state, thereby improving the service life of the battery pack and having higher safety.

[0077] In some specific embodiments of the present invention, as Figure 9 and Figure 10 shown, the side beam 310 includes a main body portion 311 and a connecting portion 312.

[0078] The main body portion 311 at least partially extends along the height direction of the battery pack tray 2. The connecting portion 312 is provided on the side of the main body portion 311 facing the cooler 1, and the connecting portion 312 extends along the width direction of the battery pack tray 2. The connecting portion 312 is inserted into the installation gap.

[0079] In this way, the main body portion 311 can define a space for installing the battery module in the height direction with the front beam 320 and the rear beam 330, so as to facilitate the fixation and protection of the battery module by using the battery pack tray 2.

[0080] In addition, the connecting portion 312 can protrude from one side of the main body portion 311 facing the battery module in the width direction of the battery pack, and the connecting portion 312 can also extend along the length direction of the side beam 310. Among them, the connecting portion 312 can be formed by roll pressing and stacking. After the connecting portion 312 is inserted into the installation gap 101, the cooling plate 100 and the temperature equalizing plate 200 can clamp the connecting portion 312, so that the connection strength between the connecting portion 312 and the cooler 1 is relatively high. Moreover, a seal can be made between the connecting portion 312 and the side wall of the installation gap 101 to ensure that the sealing effect between the connecting portion 312 and the cooler 1 is relatively good.

[0081] In some specific embodiments of the present utility model, as Figures 1 - 4 shown, a plurality of through holes can be formed on the side of the main body portion 311 away from the cooler 1. A lifting lug sleeve 313 can be fixedly welded in the through holes, and a bolt can be used to pass through the lifting lug sleeve 313 and be fixed to the vehicle frame or other components, so that the battery pack can be fixed to the vehicle frame or other components.

[0082] In some specific embodiments of the present utility model, as Figure 9 and Figure 10 shown, the connecting portion 312 is adjacent to the lower side edge of the main body portion 311, and the lower side edge of the main body portion 311 extends downward beyond the lower side surface of the connecting portion 312.

[0083] With such a setting, the lower side surface of the connecting portion 312 can be higher than the lower side edge of the main body portion 311. After the connecting portion 312 is inserted into the installation gap 101, the lower side edge of the main body portion 311 can extend downward beyond the lower side surface of the cooling plate 100, so as to prevent the cooling plate 100 from protruding downward from the tray beam 300, and the tray beam 300 can more effectively protect the cooler 1.

[0084] Preferably, the lower side edge of the main body portion 311 can be flush with the lower side surface of the cooling plate 100. In this way, not only can the tray beam 300 be used to protect the cooler, but also the structural settings of the lower side edge of the main body portion 311 and the lower side surface of the cooling plate 100 are more regular.

[0085] In addition, it should be noted that in order to adapt to the heights of different battery modules, the side beam 310 needs to be adjusted according to the specifications of the battery modules. For example, when the specifications of the battery modules are small, the height of the battery modules will also decrease accordingly. In order to ensure that the upper side surface of the battery modules is flush with the upper side edge of the tray beam 300, the height of the upper surface of the connecting portion 312 needs to be adjusted upward.

[0086] Specifically, the size of the connecting portion 312 in the vertical direction can be increased, that is, the thickness of the connecting portion 312 can be increased, so that the height of the upper surface of the connecting portion 312 can be relatively high, thereby supporting the battery module and making the upper surface of the battery module flush with the upper side of the tray beam 300. Alternatively, the height of the connecting portion 312 can also be adjusted upward. After the cooler 1 and the tray beam 300 are assembled, the cross-sectional shape of the lower side of the battery pack tray 2 is in a "Ji" shape.

[0087] In addition, in order to ensure that the reinforcing plate 800 described below can effectively support the cooler 1, the reinforcing plate 800 can also be configured in a "Ji" shape to ensure that the reinforcing plate 800 can support the cooler 1 after being connected to the side beam 310, the overall structural strength of the battery pack tray 2 is relatively high, and the connection stability between the cooler 1 and the tray beam 300 is higher.

[0088] In some specific embodiments of the present invention, as Figure 9 shown, the battery pack tray 2 further includes a sealant layer 600, and the sealant layer 600 is at least provided between one side in the thickness direction of the connecting portion 312 and the inner wall of the installation gap 101 to seal the side beam 310 and the cooler 1.

[0089] For example, the sealant layer 600 can be provided between the upper side of the connecting portion 312 and the upper side wall of the installation gap 101. That is, in the embodiment where the cooler 1 is disposed below, the sealant layer 600 can be provided between the connecting portion 312 and the heat dissipation plate 200; or, the sealant layer 600 can be provided between the lower side of the connecting portion 312 and the lower side wall of the installation gap 101. That is, in the embodiment where the cooler 1 is disposed below, the sealant layer 600 can be provided between the connecting portion 312 and the cooling plate 100; or, the sealant layer 600 can be provided between the upper side of the connecting portion 312 and the upper side wall of the installation gap 101, and between the lower side of the connecting portion 312 and the lower side wall of the installation gap 101 at the same time.

[0090] In this way, not only can the connection strength between the connecting portion 312 and the cooling plate 100 and the heat dissipation plate 200 be improved by using the sealant layer 600, but also the connection between the connecting portion 312 and the cooler 1 can be sealed by using the sealant layer 600, further improving the sealing performance between the side beam 310 and the cooler 1, and the sealing performance of the battery pack tray 2 is better.

[0091] In some specific embodiments of the present invention, as Figure 8 shown, the connecting portion 312 is provided with a plurality of first positioning holes 340, and the cooler 1 is provided with a plurality of second positioning holes 140. The plurality of first positioning holes 340 and the plurality of second positioning holes 140 are arranged in one-to-one correspondence, and the first positioning holes 340 and the second positioning holes 140 are used for fixing positioning pins.

[0092] For example, the first positioning holes 340 may be provided at both ends of the connecting portion 312 in the length direction, and the second positioning holes 140 may be provided at both ends of the cooler 1 in the length direction.

[0093] By providing the first positioning holes 340 and the second positioning holes 140, when the side beam 310 and the cooler 1 are assembled, a positioning pin can pass through the first positioning holes 340 and the second positioning holes 140 to preliminarily position the side beam 310 and the cooler 1. Furthermore, the assembly steps between the cooler 1 and the tray beam 300 can be simplified, and the assembly error between the cooler 1 and the tray beam 300 can be reduced, making the assembly more convenient and with higher assembly accuracy.

[0094] In some specific embodiments of the present utility model, such as Figure 4 and Figure 8 shown, the connecting portion 312 is provided with a plurality of mounting holes 314 for fixing the fasteners 500. The fasteners 500 sequentially pass through the cooling plate 100, the mounting holes 314, and the isothermal plate 200 to fixedly connect the connecting portion 312 and the cooler 1.

[0095] Among them, the fasteners 500 can be hot-melt fastening screws. The hot-melt fastening screws can be melted by high-speed rotation and form self-tapping threads on the cooling plate 100 and the isothermal plate 200, and finally fasten the cooling plate 100, the connecting portion 312, and the isothermal plate 200 together. Of course, the fasteners 500 can also be other types of bolt or keyway pin combination structures, etc.

[0096] Specifically, the plurality of mounting holes 314 can be arranged at intervals along the length direction of the connecting portion 312. By providing a plurality of fasteners 500, the cooler 1 and the connecting portion 312 can be more reliably connected and fixed together, thereby improving the connection strength between the cooler 1 and the tray beam 300, and the overall structural strength of the battery pack tray 2 can be higher.

[0097] In some specific embodiments of the present utility model, the battery pack tray 2 further includes a mounting bracket. The mounting bracket is provided above the cooler 1, and the mounting bracket is provided with a plurality of avoidance holes, and the fasteners 500 extend into the avoidance holes.

[0098] Among them, the mounting bracket can be a plastic bracket.

[0099] By providing an installation bracket, the battery modules can be fixed by the installation bracket so as to stably fix multiple battery modules in the battery pack tray. Moreover, by providing a plurality of avoidance holes in the installation bracket, a plurality of fasteners 500 can respectively extend into the avoidance holes in a one-to-one correspondence. In this way, the installation bracket and the fasteners will not interfere with each other in position, facilitating the fixing of the installation bracket between the tray beams 300. Furthermore, the upper end of the fastener 500 will not protrude beyond the installation bracket, that is, the fastener 500 can be hidden in the avoidance hole, thereby avoiding the position interference between the fastener 500 and the battery module.

[0100] In some specific embodiments of the present invention, as Figures 1 - 3 shown, the battery pack tray 2 further includes a reinforcing beam 700 and a plurality of reinforcing plates 800.

[0101] Among them, the reinforcing beam 700 and the heat dissipation plate 200 can be connected by brazing to ensure the integrity of the heat dissipation plate 200 and avoid damage to the heat dissipation plate 200 by high temperature. In addition, the reinforcing beam 700 and the side beam 310 can be welded by carbon dioxide shielded welding to ensure a relatively high connection strength between the reinforcing beam 700 and the side beam 310.

[0102] Both ends of the reinforcing beam 700 are respectively connected to two side beams 310 and the reinforcing beam 700 is adjacent to the front beam 320. The reinforcing beam 700 is connected to the cooler 1. Among them, the reinforcing beam 700 can be arranged above the cooler 1. By providing the reinforcing beam 700, the structural strength of the battery pack tray 2 near the front beam 320 can be significantly improved, and further the overall structural strength of the battery pack tray 2 can be higher, enabling the battery pack tray 2 to more stably support and fix the battery module, and the overall structural strength of the battery pack is higher.

[0103] In addition, a plurality of reinforcing plates 800 are arranged on the lower side of the cooler 1 and the reinforcing plates 800 are connected to the two side beams 310. For example, both ends of the reinforcing plate 800 can be respectively connected to the two side beams 310. In this way, the plurality of reinforcing plates 800 can assist in fixing the cooler 1 from the lower side of the cooler 1 to improve the connection strength between the cooler 1 and the side beam 310, so that the structural strength of the battery pack tray 2 is higher.

[0104] Among them, the reinforcing plate 800 can be welded to the side beam by laser welding.

[0105] In some embodiments, as Figure 2As shown, at least one reinforcing plate 800 may be disposed near the front beam 320. It can be understood that the adapter block 400 is fixed to the front beam 320, and the adapter block 400 needs to communicate with the coolant passage of the cooler 1. To avoid interference, a structure similar to the support portion 331 on the rear beam 330 cannot be provided on the lower side of the front beam 320. By adding a reinforcing plate 800 near the front beam 310, the reinforcing plate 800 can assist in supporting the cooler 1, and the connection strength at the position of the cooler 1 near the front beam 320 can also be relatively high, further improving the connection stability between the cooler 1 and the tray beam 300.

[0106] The following describes a battery pack according to an embodiment of the present invention with reference to the accompanying drawings.

[0107] The battery pack includes a battery module and the cooler 1 according to the above embodiment of the present invention or the battery pack tray 2 according to the above embodiment of the present invention.

[0108] For the battery pack according to the embodiment of the present invention, by using the cooler 1 according to the above embodiment of the present invention or the battery pack tray 2 according to the above embodiment of the present invention, the connection strength between the cooler 1 and the tray beam 300 is higher, and the sealing performance at the connection with the tray beam 300 is better, thereby improving the sealing performance of the battery pack.

[0109] The following describes a vehicle according to an embodiment of the present invention with reference to the accompanying drawings. The vehicle includes the battery pack according to the above embodiment of the present invention.

[0110] For the vehicle according to the embodiment of the present invention, by using the battery pack according to the above embodiment of the present invention, the connection strength between the cooler 1 and the tray beam 300 is higher, and the sealing performance at the connection with the tray beam 300 is better, thereby improving the sealing performance of the battery pack.

[0111] The other configurations and operations of the cooler 1, the battery pack tray 2, the battery pack, and the vehicle according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail here. In the description of this specification, the descriptions referring to terms such as "specific embodiments", "specific examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0112] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A cooler, characterized in that: include: A cooling plate (100); A temperature averaging plate (200), the temperature averaging plate (200) is suitable for being arranged on a side of the cooling plate (100) facing the battery module, the temperature averaging plate (200) is connected to the cooling plate (100), and an installation gap (101) is formed between the edge of the cooling plate (100) and the temperature averaging plate (200), and the installation gap (101) is used to connect to the tray beam (300) of the battery pack tray (2).

2. The cooler (1) according to claim 1, characterized in that The installation gap (101) is arranged on two opposite sides of the cooler (1) in the width direction, and the installation gap (101) is used to be connected to the side beam (310) of the battery pack tray (2).

3. The cooler (1) according to claim 1, characterized in that The cooling plate (100) comprises: A plate body (110), wherein the plate body (110) and the temperature equalizing plate (200) are connected and jointly define a cooling liquid flow channel; a bending portion (120), one end of the bending portion (120) being connected to the plate body (110), and the bending portion (120) being bent relative to the plate body (110) in a direction away from the temperature equalizing plate (200); A mounting portion (130), wherein the mounting portion (130) is connected to the other end of the bending portion (120) so that the mounting portion (130) and the plate body (110) are offset in the thickness direction of the cooling plate (100), and the mounting gap (101) is formed between the mounting portion (130) and the temperature equalizing plate (200).

4. A battery pack tray (2), characterized in that: include: Pallet beam (300); According to the cooler (1) according to any one of claims 1 to 3, the cooler (1) is connected to the tray beam (300) and is adjacent to the lower side of the tray beam (300), and the cooler (1) constitutes the bottom wall of the battery pack tray (2).

5. The battery pack tray (2) according to claim 4, characterized in that: The pallet beam (300) comprises: Two side beams (310), the two side beams (310) being arranged on opposite sides of the battery pack tray (2) in a width direction, and portions of the side beams (310) extending into the installation gap (101) and connected to the cooler (1); A front beam (320), two ends of the front beam (320) being respectively connected to one end of the two side beams (310); A rear beam (330), wherein two ends of the rear beam (330) are respectively connected to the other ends of the two side beams (310), and the rear beam (330) is structured with a support portion (331), wherein the support portion (331) is supported on the lower side of the cooler (1) and is respectively connected to the two side beams (310).

6. The battery pack tray (2) according to claim 5, characterized in that: The side beam (310) comprises: A main body portion (311), the main body portion (311) at least partially extending along the height direction of the battery pack tray (2); A connecting portion (312), wherein the connecting portion (312) is disposed on a side of the main body (311) facing the cooler (1), and the connecting portion (312) extends along the width direction of the battery pack tray (2), and the connecting portion (312) is inserted into the installation gap (101).

7. The battery pack tray (2) according to claim 6, characterized in that: The connecting portion (312) is adjacent to the lower side of the main body portion (311), and the lower side of the main body portion (311) extends downward beyond the lower side of the connecting portion (312).

8. The battery pack tray (2) according to claim 6, characterized in that: Also includes: A sealant layer (600), the sealant layer (600) being provided at least between one side of the connection portion (312) in the thickness direction and the inner wall of the installation gap (101) to seal the side beam (310) and the cooler (1).

9. The battery pack tray (2) according to claim 6, characterized in that: The connecting portion (312) is provided with a plurality of first positioning holes (340), and the cooler (1) is provided with a plurality of second positioning holes (140). The plurality of first positioning holes (340) and the plurality of second positioning holes (140) are arranged in a one-to-one correspondence and are used to fix positioning pins.

10. The battery pack tray (2) according to claim 6, characterized in that: The connecting portion (312) is provided with a plurality of mounting holes (314) for fixing fasteners (500), and the fasteners (500) are sequentially passed through the cooling plate (100), the mounting holes (314) and the temperature equalizing plate (200) to fix the connecting portion (312) and the cooler (1).

11. The battery pack tray (2) according to claim 10, characterized in that: Also includes: A mounting bracket is arranged above the cooler (1), and the mounting bracket is provided with a plurality of avoidance holes, and the fasteners (500) extend into the avoidance holes.

12. The battery pack tray (2) according to claim 5, characterized in that: Also includes: A reinforcing beam (700), wherein two ends of the reinforcing beam (700) are respectively connected to the two side beams (310) and the reinforcing beam (700) is adjacent to the front beam (320), and the reinforcing beam (700) is connected to the cooler (1); A plurality of reinforcing plates (800) are provided on the lower side of the cooler (1), and the reinforcing plates (800) are connected to the two side beams (310).

13. A battery pack, characterized in that: include: Battery module; A cooler (1) according to any one of claims 1-3 or a battery pack tray (2) according to any one of claims 4-12.

14. A vehicle, characterized in that: Comprising the battery pack according to claim 13.

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