Heat dissipation assembly of vehicle battery pack, vehicle battery pack assembly and vehicle

Abstract

The invention relates to the technical field of vehicle battery pack heat dissipation, and discloses a heat dissipation assembly of a vehicle battery pack, a vehicle battery pack assembly and a vehicle, the heat dissipation assembly comprises: a heat dissipation plate provided with a plurality of heat dissipation grooves with upward openings, the heat dissipation grooves are used for accommodating battery cells, and the heat dissipation plate is used for dissipating heat conducted to the heat dissipation plate by the battery cells; the heat conduction plate covers the heat dissipation plate so as to cover the heat dissipation groove, and the heat conduction plate is used for conducting heat of the battery monomers and the heat dissipation plate; and the cooling fins are arranged on the heat conducting plate and used for dissipating heat conducted to the cooling fins by the heat conducting plate. Therefore, by arranging the single batteries in the heat dissipation grooves, each single battery can be well cooled, and the heat dissipation effect can be further enhanced through the heat conduction plates and the heat dissipation fins. Therefore, a relatively good heat dissipation effect can be realized through a simple structure.

Description

Technical Field

[0001] This application relates to the technical field of vehicle battery pack heat dissipation, and particularly relates to a heat dissipation component for a vehicle battery pack, a vehicle battery pack component, and a vehicle. Background Art

[0002] With the development of new energy technologies, battery packs have been widely used in fields such as electric vehicles and energy storage systems. However, a large amount of heat is generated during the charging and discharging process of the battery pack. If the heat cannot be dissipated in a timely and effective manner, it will cause the temperature of the battery pack to be too high, affecting the performance, lifespan, and safety of the battery pack.

[0003] Currently, common battery pack heat dissipation methods include air cooling, liquid cooling, etc. However, these methods have problems such as limited heat dissipation efficiency, complex structures, and high costs. Moreover, most common heat dissipation ideas and structures have been covered by existing technologies, and there is an urgent need to develop a heat dissipation solution with a simple structure and good heat dissipation effect. Summary of the Invention

[0004] In view of the above problems, this application provides a heat dissipation component for a vehicle battery pack, a vehicle battery pack component, and a vehicle. By arranging battery cells in heat dissipation grooves, good heat dissipation can be achieved for each battery cell, and the heat dissipation effect can be further enhanced through heat conduction plates and heat dissipation fins. Therefore, a relatively good heat dissipation effect can be achieved through a simple structure.

[0005] In the first aspect of this application, a heat dissipation component for a vehicle battery pack is provided, including: a heat dissipation plate provided with a plurality of heat dissipation grooves opening upward, the heat dissipation grooves being used to accommodate battery cells, and the heat dissipation plate being used to dissipate the heat conducted by the battery cells to the heat dissipation plate; a heat conduction plate covering the upper part of the heat dissipation plate to cover the heat dissipation grooves, the heat conduction plate being used to conduct the heat of the battery cells and the heat dissipation plate; and heat dissipation fins provided on the heat conduction plate, the heat dissipation fins being used to dissipate the heat conducted by the heat conduction plate to the heat dissipation fins.

[0006] In some specific embodiments, the heat dissipation plate includes a first heat dissipation plate and a second heat dissipation plate, the first heat dissipation plate being stacked above the second heat dissipation plate in the height direction thereof, and the heat conduction plate being provided above the first heat dissipation plate.

[0007] In some specific embodiments, the heat dissipation component for a vehicle battery pack further includes a water-cooled heat dissipation plate, the water-cooled heat dissipation plate being attached between the first heat dissipation plate and the second heat dissipation plate, and the water-cooled heat dissipation plate being used to conduct coolant to dissipate heat from the first heat dissipation plate, the second heat dissipation plate, and the battery cells through the coolant.

[0008] In some specific embodiments, a cooling fan and a cooling air duct are provided inside the heat dissipation plate. The cooling fan is communicated with the cooling air duct, and the cooling air duct is arranged in the middle area of the heat dissipation plate. Among them, the distance between the edge of the middle area and the edge of the heat dissipation plate is greater than a preset distance. The cooling air duct is used to conduct the cooling air flow formed by the cooling fan to dissipate heat from the inside of the heat dissipation plate and the battery cells through the cooling air flow.

[0009] In some specific embodiments, a hollowed-out area is provided in the middle of the heat dissipation plate. The inner side wall of the hollowed-out area is the side wall of the cooling air duct, and a heat dissipation structure is provided at the inner side wall of the hollowed-out area. The heat dissipation structure is used to dissipate the heat of the cooling air duct.

[0010] In some specific embodiments, the heat dissipation fins are arranged in strips and extend in a wavy shape in their length direction. A plurality of heat dissipation fins are arranged in multiple columns.

[0011] In some specific embodiments, the heat dissipation plate includes a heat dissipation frame and heat dissipation partitions. The heat dissipation frame forms a receiving groove with an upward opening, and the heat dissipation partitions are arranged in the receiving groove. The heat dissipation partitions cooperate with the inner wall of the heat dissipation frame to form heat dissipation grooves.

[0012] In some specific embodiments, the heat dissipation component of the vehicle battery pack includes a temperature sensor. The temperature sensor is located in the middle area of the heat dissipation plate. The distance between the edge of the middle area and the edge of the heat dissipation plate is greater than a preset distance. The temperature sensor is arranged at the positive and negative electrode positions of the battery cells.

[0013] The second aspect of the present application provides a vehicle battery pack assembly, including: the heat dissipation component of the vehicle battery pack as described in any one of the above; battery cells and a battery pack housing. The heat dissipation component of the vehicle battery pack is partially arranged inside the battery pack housing, and the heat dissipation fins pass through the battery pack housing and are exposed to the air; a ventilation protection cover is arranged on the battery pack housing. The ventilation protection cover is used to form a protection space so that the heat dissipation fins exposed outside the battery pack housing are located in the protection space.

[0014] The third aspect of the present application provides a vehicle, including the heat dissipation component of the vehicle battery pack as described in any one of the above or the above vehicle battery pack assembly.

[0015] The present application has at least the following beneficial effects: Based on the heat dissipation component of the vehicle battery pack, the vehicle battery pack component and the vehicle provided by the present application, the heat dissipation component includes: a heat dissipation plate provided with a plurality of heat dissipation grooves opening upward for accommodating battery cells, and the heat dissipation plate is used to dissipate the heat conducted from the battery cells to the heat dissipation plate; a heat conduction plate covering the upper part of the heat dissipation plate to cover the heat dissipation grooves, and the heat conduction plate is used to conduct the heat of the battery cells and the heat dissipation plate; heat dissipation fins arranged on the heat conduction plate, and the heat dissipation fins are used to dissipate the heat conducted from the heat conduction plate to the heat dissipation fins. Therefore, by arranging the battery cells in the heat dissipation grooves, good heat dissipation effects can be achieved for each battery cell, and the heat dissipation effects can be further enhanced through the heat conduction plate and the heat dissipation fins. Therefore, relatively good heat dissipation effects can be achieved through a simple structure.

[0016] The above description is only an overview of the technical solution of the embodiment of the present application. In order to be able to understand the technical means of the embodiment of the present application more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and understandable, the specific implementation manners of the present application are specifically given below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0018] Figure 1 is a schematic structural diagram of a heat dissipation component of a vehicle battery pack provided by the present application;

[0019] Figure 2 is Figure 1 a schematic enlarged view of the structure of area A in;

[0020] Figure 3 is a schematic diagram of the arrangement of the first heat dissipation plate and the second heat dissipation plate;

[0021] Figure 4 is Figure 1 a schematic diagram of an arrangement of the heat dissipation plate shown in;

[0022] Figure 5 is Figure 1 a top view of the structure shown in;

[0023] Figure 6 is Figure 1 a side view of the structure shown in.

[0024] Description of the reference numerals: The heat dissipation component 10 of the vehicle battery pack, heat dissipation plate 11, heat dissipation groove 111, first heat dissipation plate 112, second heat dissipation plate 113, hollowed-out area 114, heat dissipation structure 115, heat conduction plate 12, heat dissipation fins 13, water-cooled heat dissipation plate 14.

[0025] The realization of the purpose of this application, functional features and advantages will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of this application will be clearly and completely described with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0027] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of this application, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of this application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by this application.

[0029] In the first aspect of this application, a heat dissipation component 10 of a vehicle battery pack is provided. Figure 1 It is a schematic structural diagram of the heat dissipation component 10 of the vehicle battery pack provided by this application. Figure 2 Is Figure 1 The enlarged structural diagram of area A in

[0030] Combined with Figure 1 And Figure 2, the heat dissipation component 10 of the vehicle battery pack includes a heat dissipation plate 11, a heat conduction plate 12, and heat dissipation fins 13, and all three can be made of materials with good heat conduction effects.

[0031] Specifically, the heat dissipation plate 11 is provided with a plurality of heat dissipation grooves 111 opening upward. The heat dissipation grooves 111 are used to accommodate battery cells, and the heat dissipation plate 11 is used to dissipate the heat conducted from the battery cells to the heat dissipation plate 11. The battery pack includes a plurality of battery cells, and the plurality of battery cells are connected to form a large-capacity battery pack energy storage structure through the plurality of battery cells and serve as the main structure of the battery pack. At this time, each battery cell can correspond to one heat dissipation groove 111, so that different battery cells are arranged in different heat dissipation grooves 111 to achieve a good heat dissipation effect on the battery cells.

[0032] Regarding the shape and size settings of the heat dissipation grooves 111, the shape of the heat dissipation grooves 111 can be similar to the shape of the battery cells, and the size of the heat dissipation grooves 111 can be slightly larger than the size of the battery cells, so as to be able to accommodate the battery cells well, and the distance between the battery cells and the inner wall of the heat dissipation grooves 111 is small. Through this setting method of the heat dissipation grooves 111, on the one hand, the arrangement space can be reduced, and on the other hand, the heat dissipation effect of the battery cells can be better. Combining Figure 1 and Figure 2 , the shape of the heat dissipation grooves 111 can be a cuboid or a cube shape, but it is not limited thereto. Regarding the arrangement method of the heat dissipation grooves 111, the heat dissipation grooves 111 can be regularly arranged in an array for easy manufacturing, or can be arranged arbitrarily according to actual needs, so as to adapt to different actual application situations. Such as Figure 1 and Figure 2 , the heat dissipation grooves 111 are arranged in an array, but it is not limited to this.

[0033] It should be understood that through the above structural settings, the heat generated by the battery cells can be conducted to the heat dissipation plate 11. Due to the good heat conduction and heat dissipation effect of the heat dissipation plate 11, a good heat dissipation effect on the battery cells can be achieved. However, only through the setting of the heat dissipation plate 11, the heat dissipation effect is also limited. Therefore, this embodiment also provides a heat conduction plate 12 and heat dissipation fins 13 to further enhance the heat dissipation effect on the battery cells.

[0034] Specifically, the heat conduction plate 12 is covered above the heat dissipation plate 11 to cover the heat dissipation grooves 111, and the heat conduction plate 12 is used to conduct the heat of the battery cells and the heat dissipation plate 11. Among them, the shape and size of the heat conduction plate 12 are not limited in this embodiment. The heat conduction plate 12 can cover part of the heat dissipation grooves 111, or can cover all of the heat dissipation grooves 111, and can be set according to actual needs. In Figure 1 and Figure 2Among them, only the implementation manner in which the heat conduction plate 12 covers a part of the heat dissipation groove 111 is shown. It should be understood that through the setting of the heat conduction plate 12, on the one hand, the heat dissipation groove 111 can be covered, which can play a certain protection and isolation effect on the battery cell; on the other hand, it can directly conduct the heat of the battery cell and the heat dissipation plate 11, and then directly or indirectly dissipate the heat generated by the battery cell, thereby enhancing the heat dissipation effect of the battery cell.

[0035] Among them, whether it is the heat dissipation plate 11 or the heat conduction plate 12, the heat conduction and heat dissipation effects are relatively good. For the molding of the heat dissipation plate 11 and the heat conduction plate 12, a special nano-material preparation process can be used to mix high-thermal-conductivity nano-particles with an organic polymer matrix, and then form a high-thermal-conductivity and heat-dissipating structure. During the manufacturing process, the proportion of nano-particles and the size and distribution of pores can be precisely controlled to ensure high-thermal-conductivity performance and stability. Among them, the organic polymer is a high-molecular compound formed by covalent bonds of elements such as carbon, hydrogen, oxygen, and nitrogen, and has a long-chain or network structure. In the composite material, the matrix is the continuous phase, and its main functions include: bonding the reinforcing materials (such as carbon fiber, glass fiber) into a whole; transferring loads and dispersing stresses; protecting the reinforcing materials from environmental damage (such as corrosion, oxidation), etc.

[0036] Specifically, the heat sink 13 is arranged on the heat conduction plate 12, and the heat sink 13 is used to dissipate the heat conducted from the heat conduction plate 12 to the heat sink 13. The number of heat sinks 13 can be multiple, and the number of heat sinks 13 can be set according to actual heat dissipation requirements. In this embodiment, the structure of the heat sink 13 can refer to the relevant heat sink structure in the prior art, and no specific limitation is made. In this embodiment, the main highlight is the heat dissipation enhancement effect of the heat sink 13 on the heat conduction plate 12.

[0037] In summary, based on the heat dissipation component 10 of the vehicle battery pack provided in the above embodiment, by arranging the battery cell in the heat dissipation groove 111, a good heat dissipation effect can be achieved for each battery cell, and the heat dissipation effect of the battery cell can be further enhanced through the heat conduction plate 12 and the heat sink 13. Therefore, a relatively good heat dissipation effect can be achieved through a simple structure.

[0038] Figure 3 It is a schematic diagram of the setting of the first heat dissipation plate 112 and the second heat dissipation plate 113.

[0039] Combined Figure 3, For the specific setting method of the heat dissipation plate 11, in some specific embodiments, the heat dissipation plate 11 includes a first heat dissipation plate 112 and a second heat dissipation plate 113. The first heat dissipation plate 112 is stacked above the second heat dissipation plate 113 in its height direction, and the heat conduction plate 12 is arranged above the first heat dissipation plate 112. Among them, the structures of the first heat dissipation plate 112 and the second heat dissipation plate 113 can be the same, and the specific setting method can refer to the specific setting method of the above-mentioned heat dissipation plate 11.

[0040] Through the stacked setting method of the first heat dissipation plate 112 and the second heat dissipation plate 113, the setting area of the battery pack can be reduced, which is convenient for the layout of the battery pack. Moreover, through the setting of multiple layers of heat dissipation plates 11, the heat dissipation effect of the heat dissipation plate 11 can be further enhanced. In this setting structure, the heat conduction plate 12 is only arranged above the first heat dissipation plate 112 because the heat of the second heat dissipation plate 113 will be transferred to the first heat dissipation plate 112, and at this time, the heat dissipation demand of the first heat dissipation plate 112 is greater. Of course, in some other embodiments, the number of layers of the heat dissipation plate 11 is not limited to two layers. For example, the number of layers of the heat dissipation plate 11 is 3 layers, and at this time, a third heat dissipation plate 113 can also be included.

[0041] Combined with the way of setting multiple layers of the heat dissipation plate 11, continue to combine Figure 3 , In some specific embodiments, the heat dissipation component 10 of the vehicle battery pack further includes a water-cooled heat dissipation plate 14. The water-cooled heat dissipation plate 14 is attached between the first heat dissipation plate 112 and the second heat dissipation plate 11. The water-cooled heat dissipation plate 14 is used to conduct the coolant to dissipate heat from the first heat dissipation plate 112, the second heat dissipation plate 113, and the battery cells through the coolant.

[0042] Specifically, coolant flow channels can be arranged in the water-cooled heat dissipation plate 14 to achieve the conduction of the coolant through the coolant flow channels, and heat exchange is carried out between the coolant and the external first heat dissipation plate 112 and second heat dissipation plate 113, so as to realize the heat dissipation of the first heat dissipation plate 112 and the second heat dissipation plate 113. In order to cooperate with the setting of the water-cooled heat dissipation plate 14, the coolant flow channels of the water-cooled heat dissipation plate 14 can be connected to the heat exchanger and other structures related to the battery pack, so as to realize the heat dissipation and circulating flow of the coolant. Moreover, when the number of layers of the set heat dissipation plate 11 is greater than two layers, coolant flow channels can be arranged between the adjacent upper and lower heat dissipation plates 11, so as to achieve a more comprehensive heat dissipation effect.

[0043] For a further setting manner of the heat dissipation plate 11, in some specific embodiments, a heat dissipation fan and a heat dissipation air duct are arranged in the heat dissipation plate 11. The heat dissipation fan is communicated with the heat dissipation air duct, and the heat dissipation air duct is arranged in the middle area of the heat dissipation plate 11. Wherein, the distance between the edge of the middle area and the edge of the heat dissipation plate 11 is greater than a preset distance. The heat dissipation air duct is used for conducting the heat dissipation air flow formed by the heat dissipation fan to dissipate heat from the inside of the heat dissipation plate 11 and the battery cells through the heat dissipation air flow.

[0044] Specifically, the heat dissipation air duct arranged in the heat dissipation plate 11 may or may not be communicated with the heat dissipation groove 111, and this embodiment does not make specific limitations. Since the heat dissipation effect of the outer area of the heat dissipation plate 11 is better than that of the middle area, the heat dissipation air duct is arranged in the middle area of the heat dissipation plate 11 to improve the heat dissipation effect of the middle area of the heat dissipation plate 11, thereby avoiding the serious heat generation in the middle of the battery pack. Among them, the preset distance between the edge of the middle area and the outer edge of the heat dissipation plate 11 can be determined according to factors such as the specific size of the heat dissipation plate 11 and the heat dissipation requirements of the battery pack, and no specific limitations are made here.

[0045] Figure 4 is Figure 1 A schematic diagram of a setting of the heat dissipation plate 11 shown.

[0046] Combined with Figure 4 , in some specific embodiments, a hollowed-out area 114 is arranged in the middle of the heat dissipation plate 11. The shape of the hollowed-out area 114 is not specifically limited here, Figure 4 and the hollowed-out area 114 is merely exemplarily shown as an ellipse. The hollowed-out area 114 may be a place where heat is easily accumulated on the heat dissipation plate 11, and the hollowed-out area 114 may be located within the above-mentioned middle area.

[0047] Among them, the inner side wall of the hollowed-out area 114 is the side wall of the heat dissipation air duct. At this time, the heat dissipation air duct may be as shown in a of Figure 4 . At this time, the heat dissipation air duct is arranged around the hollowed-out area 114 so that the heat dissipation air duct can achieve a better heat dissipation effect with the outside world and can achieve a relatively good heat dissipation effect on the place where heat generation is more serious in the middle of the heat dissipation plate 11. In order to further enhance the heat dissipation effect of the heat dissipation air duct, a heat dissipation structure 115 is arranged at the inner side wall of the hollowed-out area 114, and the heat dissipation structure 115 is used for dissipating the heat of the heat dissipation air duct. Among them, the specific setting manner of the heat dissipation structure 115 can refer to the setting manner of relevant heat dissipation components in the prior art, and no specific limitations are made here. In Figure 4 , only part of the inner wall is shown with the heat dissipation structure 115 arranged, but in some other embodiments, the heat dissipation structure 115 may be arranged on all the inner walls.

[0048] Figure 5 is Figure 1A top view of the structure shown, Figure 6 yes Figure 1 Side view of the structure shown.

[0049] Combination Figure 5 as well as Figure 6 In some specific embodiments, the heat sink 13 is arranged in a strip shape, the heat sink 13 extends in a wave shape in its length direction, and a plurality of heat sinks 13 are arranged in a plurality of rows.

[0050] Specifically, the heat sink 13 can be arranged in a strip-shaped sheet structure, so that the heat sink 13 can have a larger contact area with the air, thereby making the heat sink 13 have a better heat dissipation effect. Figure 5 as well as Figure 6 In the embodiment, the heat sink 13 is exemplarily shown to be arranged in a rectangular shape, and is not arranged in a wavy shape in the length direction. In this embodiment, by arranging the heat sink 13 to extend in a wavy shape in the length direction, the contact area between the heat sink 13 and the air can be further increased, thereby enhancing the heat dissipation effect of the heat sink 13. Figure 6 , the height direction of the heat sink 13 is consistent with the height direction of the heat sink 11.

[0051] Combination Figure 1 as well as Figure 5 In some specific embodiments, the heat sink 11 includes a heat sink frame and a heat sink spacer. The heat sink frame forms a receiving groove with an opening upward. The heat sink spacer is arranged in the receiving groove. The heat sink spacer cooperates with the inner wall of the heat sink frame to form a heat sink 111. The heat sink frame includes a bottom wall and a side wall. The side wall is arranged on the bottom wall, so that the bottom wall and the side wall of the heat sink frame enclose a receiving groove with an opening upward. At this time, the side wall of the heat sink frame is the side wall of the heat sink plate 11. At this time, the specific setting method of the heat sink spacer can be determined according to actual needs. The attached figure shows that the heat sink spacer is set as a horizontal partition and a vertical partition, so as to divide the receiving groove into a plurality of regularly arranged small heat sinks 111. However, in other embodiments, the setting method of the spacer is not limited to this.

[0052] In order to realize temperature monitoring of the battery pack and control of related heat dissipation structures, in some specific embodiments, the heat dissipation assembly 10 of the vehicle battery pack includes a temperature sensor (not shown), which is located in the middle area of ​​the heat dissipation plate 11, and the distance between the edge of the middle area and the edge of the heat dissipation plate 11 is greater than the preset distance, and the temperature sensor is arranged at the positive and negative poles of the battery cell.

[0053] It should be understood that the middle region in this embodiment can be the middle region in the above embodiment, which is the region where the battery pack generates relatively serious heat. At this time, setting the temperature sensor in the middle region can achieve a good temperature monitoring effect on the region with relatively serious heat generation, and further achieve the accurate control of the relevant heat dissipation structure 115. Moreover, setting the temperature sensor at the positive and negative electrode positions of the battery cell can more accurately monitor the heat generation situation of the battery cell and achieve the precise monitoring of the temperature of the battery pack.

[0054] The second aspect of the present application provides a vehicle battery pack assembly, including: the heat dissipation assembly 10 of the vehicle battery pack in any of the above embodiments; battery cells and a battery pack housing. A part of the heat dissipation assembly 10 of the vehicle battery pack is arranged in the battery pack housing, and the heat dissipation fins 13 pass through the battery pack housing to be exposed to the air; a ventilation protection cover is arranged on the battery pack housing, and the ventilation protection cover is used to form a protection space so that the heat dissipation fins 13 exposed outside the battery pack housing are located in the protection space.

[0055] Specifically, in this embodiment, the heat dissipation fins 13 pass through the battery pack housing, so that the heat dissipation fins 13 can contact the air, and thus achieve a good heat dissipation effect for the battery pack. After the heat dissipation fins 13 extend out of the battery pack housing, there may be a risk of damage to the heat dissipation fins 13. Therefore, in this embodiment, a ventilation protection cover is also arranged on the battery pack housing, and thus a good protection effect on the heat dissipation fins 13 is achieved through the ventilation protection cover. Moreover, since the protection cover has a ventilation structure, it can also enable the heat dissipation fins 13 in the protection cover to contact the air well, and thus achieve a good heat dissipation effect for the heat dissipation fins 13.

[0056] The third aspect of the present application provides a vehicle, including the heat dissipation assembly 10 of the vehicle battery pack in any of the above embodiments or the vehicle battery pack assembly in the above embodiments.

[0057] In summary, based on the heat dissipation assembly 10, the vehicle battery pack assembly and the vehicle provided by the present application, the heat dissipation assembly includes: a heat dissipation plate 11, which is provided with a plurality of heat dissipation grooves 111 opening upward, and the heat dissipation grooves 111 are used to accommodate battery cells, and the heat dissipation plate 11 is used to dissipate the heat conducted by the battery cells to the heat dissipation plate 11; a heat conduction plate 12, which is covered above the heat dissipation plate 11 to cover the heat dissipation grooves 111, and the heat conduction plate 12 is used to conduct the heat of the battery cells and the heat dissipation plate 11; heat dissipation fins 13, which are arranged on the heat conduction plate 12, and the heat dissipation fins 13 are used to dissipate the heat conducted by the heat conduction plate 12 to the heat dissipation fins 13. Therefore, by arranging the battery cells in the heat dissipation grooves 111, a good heat dissipation effect can be achieved for each battery cell, and the heat dissipation effect can be further enhanced through the heat conduction plate 12 and the heat dissipation fins 13. Therefore, a relatively good heat dissipation effect can be achieved through a simple structure.

[0058] The above are only alternative embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made by using the content of the specification and drawings of the present application under the concept of the solution of the present application, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A heat dissipation component of a vehicle battery pack, characterized in that, Comprising: A heat dissipation plate provided with a plurality of heat dissipation grooves opening upwards, the heat dissipation grooves being used for accommodating battery cells, and the heat dissipation plate being used for dissipating the heat conducted from the battery cells to the heat dissipation plate; A heat conduction plate covering the upper side of the heat dissipation plate to cover the heat dissipation grooves, the heat conduction plate being used for conducting the heat of the battery cells and the heat dissipation plate; Heat dissipation fins provided on the heat conduction plate, the heat dissipation fins being used for dissipating the heat conducted from the heat conduction plate to the heat dissipation fins.

2. The heat dissipation assembly of a vehicle battery pack according to claim 1, wherein: The heat dissipation plate comprises a first heat dissipation plate and a second heat dissipation plate, the first heat dissipation plate being stacked above the second heat dissipation plate in its height direction, and the heat conduction plate being provided above the first heat dissipation plate.

3. The heat dissipation assembly of a vehicle battery pack according to claim 2, wherein: The heat dissipation assembly of the vehicle battery pack further comprises a water-cooled heat dissipation plate, the water-cooled heat dissipation plate being attached between the first heat dissipation plate and the second heat dissipation plate, and the water-cooled heat dissipation plate being used for conducting a coolant to dissipate heat from the first heat dissipation plate, the second heat dissipation plate and the battery cells through the coolant.

4. The heat dissipation assembly of a vehicle battery pack according to claim 1, wherein: A heat dissipation fan and a heat dissipation air duct are provided inside the heat dissipation plate, the heat dissipation fan is communicated with the heat dissipation air duct, and the heat dissipation air duct is provided in the middle area of the heat dissipation plate; Wherein, the distance between the edge of the middle area and the edge of the heat dissipation plate is greater than a preset distance, and the heat dissipation air duct is used for conducting the heat dissipation air flow formed by the heat dissipation fan to dissipate heat from the inside of the heat dissipation plate and the battery cells through the heat dissipation air flow.

5. The heat dissipation assembly of a vehicle battery pack according to claim 4, wherein: A hollowed-out area is provided in the middle of the heat dissipation plate, the inner side wall of the hollowed-out area is the side wall of the heat dissipation air duct, and a heat dissipation structure is provided at the inner side wall of the hollowed-out area, and the heat dissipation structure is used for dissipating the heat of the heat dissipation air duct.

6. The heat dissipation assembly of a vehicle battery pack according to claim 1, wherein: The heat dissipation fins are arranged in strips and extend in a wavy shape in their length direction, and a plurality of the heat dissipation fins are arranged in multiple columns.

7. The heat dissipation assembly of a vehicle battery pack according to claim 1, wherein: The heat dissipation plate comprises a heat dissipation frame and heat dissipation partitions, the heat dissipation frame forms a receiving groove opening upwards, the heat dissipation partitions are arranged in the receiving groove, and the heat dissipation partitions cooperate with the inner wall of the heat dissipation frame to form the heat dissipation grooves.

8. The heat dissipation assembly of a vehicle battery pack according to claim 1, wherein: The heat dissipation assembly of the vehicle battery pack comprises a temperature sensor, the temperature sensor is located in the middle area of the heat dissipation plate, the distance between the edge of the middle area and the edge of the heat dissipation plate is greater than a preset distance, and the temperature sensor is arranged at the positive and negative electrode positions of the battery cells.

9. A vehicle battery pack assembly, characterized in that, Comprising: The heat dissipation assembly of a vehicle battery pack according to any one of claims 1-8; A battery cell and a battery pack housing, wherein a part of the heat dissipation assembly of the vehicle battery pack is disposed within the battery pack housing, and the heat dissipation fins pass through the battery pack housing to be exposed to the air; A ventilation protection cover is disposed on the battery pack housing, and the ventilation protection cover is used to form a protection space so that the heat dissipation fins exposed outside the battery pack housing are located within the protection space.

10. A vehicle, characterized in that, Comprising the heat dissipation assembly of the vehicle battery pack according to any one of claims 1-8 or the vehicle battery pack assembly according to claim 9.

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