Mounting rail of battery pack and energy storage equipment

Abstract

The application relates to a battery pack mounting guide rail and an energy storage equipment, wherein the battery pack mounting guide rail is used for mounting a battery pack, and the battery pack mounting guide rail comprises two groups of mounting parts which are arranged at intervals along a first direction; the mounting part comprises a mounting plate and a limiting plate which are connected with each other; along the first direction, the limiting plates of the two groups of mounting parts are arranged in parallel, and the two mounting plates are located between the two limiting plates; and a heat dissipation protrusion is further arranged on the side surface of the mounting part away from the battery pack. The mounting guide rail can effectively dissipate heat for the battery pack, meets the heat dissipation performance requirement, and effectively reduces the cost and the probability of later maintenance.

Description

Technical Field

[0001] This application relates to the field of energy storage equipment technology, specifically to a battery pack mounting rail and energy storage equipment. Background Technology

[0002] With the rapid development of the new energy industry, energy storage equipment is being used more and more widely. As the core energy storage unit of energy storage equipment, the operational stability of the battery pack directly determines the overall performance and service life of the equipment.

[0003] Battery packs tend to generate a lot of heat during use, and the heat dissipation of battery packs has always been a key factor restricting the performance and lifespan of energy storage devices. Typically, liquid cooling plates are used to dissipate heat from the battery pack. The cooling system removes the heat from the battery pack by using coolant flowing through the liquid cooling plates. However, the cooling system is expensive and requires a lot of maintenance. Utility Model Content

[0004] This application provides a battery pack mounting rail and an energy storage device. The battery pack mounting rail is used to mount the battery pack and can also effectively dissipate heat from the battery pack, meeting the heat dissipation performance requirements while effectively reducing costs and the probability of later maintenance.

[0005] This application provides a battery pack mounting rail for mounting a battery pack. The battery pack mounting rail includes two sets of mounting portions spaced apart along a first direction. Each mounting portion includes a mounting plate and a limiting plate connected to each other. Along the first direction, the limiting plates of the two sets of mounting portions are arranged in parallel and side by side, and the two mounting plates are located between the two limiting plates. The side surface of the mounting portion facing away from the battery pack is also provided with a heat dissipation protrusion.

[0006] In some embodiments, the mounting plate is further provided with a flexible thermally conductive layer on the side wall facing the battery pack.

[0007] In some embodiments, the heat dissipation protrusion is provided on the side wall of the limiting plate away from the battery pack.

[0008] In some embodiments, the mounting plate is further provided with a limiting stop at its first end along the second direction, wherein the first direction is perpendicular to the second direction.

[0009] In some embodiments, the mounting plate has a second bending structure at a second end along the second direction, which is positioned away from the battery pack, and the second bending structure has a guide surface.

[0010] This application also provides an energy storage device, including a cabinet, a battery pack, and a mounting rail as described in any one of the claims, wherein the mounting rail is disposed within the cabinet.

[0011] In some embodiments, the side wall of the cabinet is further provided with a mounting beam, the mounting guide rail is provided with a mounting point connected to the mounting beam, and the periphery of the mounting point is provided with a heat dissipation protrusion.

[0012] In some embodiments, the heat dissipation protrusions of the mounting rails contact the inner wall of the cabinet.

[0013] In some embodiments, a heat dissipation duct is formed between the inner wall of the cabinet and the mounting rail, and the heat dissipation protrusion of the mounting rail is located within the heat dissipation duct; the energy storage device further includes a fan disposed in the heat dissipation duct.

[0014] In some embodiments, the mounting portion is provided with a plurality of heat dissipation fins arranged at intervals and in parallel, the heat dissipation fins being parallel to the flow direction of the heat dissipation air duct, and the heat dissipation fins forming the heat dissipation protrusions.

[0015] The battery pack mounting rail and energy storage device provided in this application have the following technical advantages:

[0016] The battery pack is mounted on a mounting rail and located between two sets of mounting sections. The battery pack contacts the mounting plate, which transfers heat to the mounting sections, where it is then dissipated through heat dissipation protrusions on the surface. These protrusions increase the heat exchange area between the mounting sections and the external environment, thus improving the heat dissipation performance of the mounting rail.

[0017] The heat generated by the battery pack mounted on the mounting rail during operation can be transferred to the mounting section through the mounting plate, and then dissipated by the heat dissipation protrusions. This achieves heat dissipation for the battery pack mounted on the mounting rail, improves the stability of battery pack operation, and thus enhances the reliability of energy storage equipment.

[0018] Furthermore, since the two mounting parts are spaced apart, the mounting surfaces of the two mounting parts are also spaced apart. This means that the bottom of the mounting guide rail has a hollow structure and does not completely cover the side wall of the battery pack, which is conducive to the battery pack dissipating heat from this point, thereby improving heat dissipation performance.

[0019] This mounting rail is simply an optimization of the structure to achieve effective heat dissipation for the battery pack. When installing the battery pack using this mounting rail, there is no need to set up a separate cooling system. Compared with the solution of cooling the battery pack through liquid cooling plates, it simplifies the overall structure, eliminates the need for a cooling system, effectively reduces costs, reduces the probability of damage to heat dissipation components in the future, and thus reduces the frequency of maintenance.

[0020] Of course, the mounting rail can also be used in conjunction with a cooling system, so that some of the heat generated by the battery pack is dissipated by the mounting rail and some by the cooling system. In this case, compared with the solution of using only the cooling system to cool the battery pack, the heat dissipation capacity requirement of the cooling system can be reduced, thereby reducing costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a battery pack mounting rail provided in an embodiment of this application;

[0022] Figure 2 yes Figure 1 Schematic diagram of the middle mounting section;

[0023] Figure 3 This is a structural schematic diagram of the installation section from another perspective;

[0024] Figure 4 This is a structural schematic diagram of the installation section from another perspective;

[0025] Figure 5 yes Figure 4 Enlarged view of A in the middle;

[0026] Figure 6 yes Figure 4 Enlarged view of B in the middle;

[0027] Figure 7 This is a schematic diagram of the internal structure of the energy storage device provided in the embodiments of this application;

[0028] Figure 8 yes Figure 7 CC section view;

[0029] Figure 9 This is a schematic diagram of the internal structure of an energy storage device from another perspective.

[0030] Appendix Figures 1-9 The reference numerals in the attached figures are explained as follows:

[0031] 1. Mounting guide rail; 11. Mounting part; 111. Mounting surface; 112. Limiting surface; 113. Heat dissipation protrusion; 114. Heat dissipation fins; 115. Mounting plate; 1151. First end; 1152. Limiting stop; 1153. Second end; 1154. Second bending structure; 1155. Guide surface; 1156. Mounting hole; 116. Limiting plate; 1161. Mounting point; 117. First bending structure; 12. Mounting groove.

[0032] 2 cabinets;

[0033] 3 battery packs;

[0034] 4. Install beams;

[0035] 5. Installation components. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solutions of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] With the rapid development of the new energy industry, energy storage equipment is being used more and more widely. As the core energy storage unit of energy storage equipment, the operational stability of the battery pack directly determines the overall performance and service life of the equipment.

[0038] Battery packs tend to generate a lot of heat during use, and the heat dissipation of battery packs has always been a key factor restricting the performance and lifespan of energy storage devices. Typically, liquid cooling plates are used to dissipate heat from the battery pack. The cooling system removes the heat from the battery pack by using coolant flowing through the liquid cooling plates. However, the cooling system is expensive and requires a lot of maintenance.

[0039] This application provides a battery pack mounting rail 1 for mounting a battery pack 3. The mounting rail 1 can also effectively dissipate heat from the battery pack 3, so that the battery pack 3 can meet the heat dissipation performance requirements while reducing costs and the probability of later maintenance.

[0040] like Figure 1 and Figure 2 As shown, the mounting rail 1 includes two sets of spaced mounting portions 11, which can be closed to form a mounting groove 12 for mounting the battery pack 3. During installation, the battery pack 3 is placed in the mounting groove 12 and slid into place within it. The mounting groove 12 also serves as a guide groove for mounting the battery pack 3, and the two mounting portions 11 are equivalent to two parallel sliding rails.

[0041] like Figure 1 and Figure 2 As shown, the mounting part 11 includes a mounting plate 115 and a limiting plate 116 connected to each other. Along a first direction, the limiting plates 116 of the two sets of mounting parts 11 are arranged parallel to each other, and the two mounting plates 115 are located between the two limiting plates 116. The mounting plate 115 has a mounting surface 111, and the limiting plate 116 has a limiting surface 112. This first direction can be the width direction of the mounting guide rail 1. The limiting surfaces 112 of the two sets of mounting parts 11 are arranged opposite to each other and respectively form the sidewalls of the mounting groove 12. The mounting surfaces 111 of the two sets of mounting parts 11 form the bottom wall of the mounting groove 12. During installation, the battery pack 3 is placed in the mounting groove 12, so that the two ends of the battery pack 3 overlap the mounting surfaces 111 respectively. The limiting surfaces 112 can limit the position of the battery pack 3 located in the mounting groove 12 from both sides, making the position of the battery pack 3 stable.

[0042] In this embodiment, the mounting plate 115 and the limiting plate 116 can be an integrally formed structure, such as... Figure 2 As shown, a first bending structure 117 is provided between the mounting plate 115 and the limiting plate 116. In this way, the cross-section of the mounting part 11 is similar to an L-shape. The mounting part 11 can be made of a single mounting plate. After setting the first bending structure 117 on the mounting plate, the mounting plate 115 and the limiting plate 116 can be formed. The overall structure is simple, the manufacturing process is simple, and the cost is low.

[0043] Of course, in this embodiment, the mounting plate 115 and the limiting plate 116 can also be set as independent separate structures, and the two can be connected by bolts, rivets, snaps, welding or other methods.

[0044] like Figure 1 and Figure 2 As shown, the surface of the mounting part 11 is also provided with a heat dissipation protrusion 113. The heat dissipation protrusion 113 is located in the area outside the mounting groove 12, that is, the side surface of the mounting part 11 facing away from the battery pack 3. The setting of the heat dissipation protrusion 113 can increase the heat exchange area that exchanges heat with the outside of the mounting groove 12, and improve the heat dissipation performance of the mounting guide rail 1.

[0045] After the battery pack 3 is installed in the mounting slot 12, the battery pack 2 contacts the mounting plate 115 and leaves a small gap with the limiting plate 116. The mounting plate 115 can transfer heat to the mounting part 11, and then dissipate it from the surface of the mounting part 11 and the heat dissipation protrusion 113.

[0046] The heat generated by the battery pack 3 installed on the mounting rail 1 during operation can be transferred through the groove wall of the mounting groove 12 to the mounting part 11, and then transferred to the heat dissipation protrusion 113 for dissipation, thereby cooling the battery pack 3, improving the stability of the battery pack 3 during operation, and thus improving the reliability of the energy storage device.

[0047] Furthermore, since the two mounting parts 11 are spaced apart, the mounting plates 115 of the two mounting parts 11 are also spaced apart. This means that the bottom wall of the mounting groove 12 has a hollow structure and does not completely cover the side wall of the battery pack 3. This is beneficial for the battery pack 3 to dissipate heat from this point, thereby improving the heat dissipation performance.

[0048] The mounting rail 1 is simply an optimization of the structure to achieve effective heat dissipation for the battery pack 3. When the battery pack 3 is installed using the mounting rail 1, there is no need to set up a separate cooling system. Compared with the solution of cooling the battery pack 3 through a liquid cooling plate, it can simplify the overall structure, eliminate the need for a cooling system, thereby effectively reducing costs, reducing the probability of damage to heat dissipation components in the later stage, and thus reducing the frequency of later maintenance.

[0049] Of course, the mounting rail 1 provided in this embodiment can also be used in conjunction with a cooling system, so that the heat generated by the battery pack 3 is partially dissipated by the mounting rail 1 and partially by the cooling system. In this case, compared with the solution of using only the cooling system to cool the battery pack 3, the heat dissipation capacity requirement of the cooling system can be reduced, thereby reducing the cost.

[0050] The mounting plate 115 has a flexible thermal conductive layer (not shown in the figure) on the side wall facing the battery pack 3 (i.e., mounting surface 111). The battery pack 3 can fit against the flexible thermal conductive layer when it is installed. The battery pack 3 and the mounting plate 115 can achieve good fit through the flexible thermal conductive layer, which increases the contact area between the two and reduces the structural requirements of the mounting surface 111 of the mounting plate 115, thereby simplifying the structure and processing technology and reducing costs.

[0051] Furthermore, the flexible thermal conductive layer is flexible, and the battery pack 3 slides along the mounting guide rail 1 during installation, which can reduce the friction of the battery pack 3 and thus provide protection for the battery pack 3.

[0052] The flexible thermal conductive layer has excellent thermal conductivity. By using this layer, the heat generated by the battery pack 3 can be effectively and promptly transferred to the mounting portion 11 for heat dissipation and cooling, thus improving the stability of the battery pack 3. This embodiment does not limit the material of the flexible thermal conductive layer; materials such as thermally conductive pads or thermally conductive silicone are not specified.

[0053] like Figure 2 As shown, the side wall of the limiting plate 116 away from the battery pack 3, that is, the side wall away from the limiting surface 112, is also provided with a heat dissipation protrusion 113. Of course, in this embodiment, there is no restriction on the setting position of the heat dissipation protrusion 113. The more heat dissipation protrusions 113 are provided, the better the heat dissipation. When the heat dissipation protrusion 113 is set on the side wall of the mounting part 11 away from the battery pack 3, the probability of interference with the installation of the battery pack 3 can also be reduced.

[0054] The heat dissipation protrusion 113 is located on the side wall of the mounting part 11 away from the limiting surface 112. The heat dissipation protrusion 113 is located in the gap between the mounting part 11 and the cabinet 2 of the energy storage device, without occupying more space. While improving the heat dissipation effect, the overall volume of the equipment remains unchanged, and the space utilization rate is improved.

[0055] like Figure 3 , Figure 4 and Figure 5As shown, the mounting plate 115 has a first end 1151 and a second end 1153 along a second direction. This second direction is perpendicular to the first direction. The second direction can be the length direction of the mounting guide rail 1. The first end 1151 is provided with a limiting stop 1152. During installation, the battery pack 3 is placed in the mounting groove 12 from the side facing the second end 1153. Then, the battery pack 3 is pushed along the second direction until it abuts against the limiting stop 1152. The battery pack 3 is installed in place. The limiting stop 1152 limits the installation of the battery pack 3, which facilitates the installation operation.

[0056] The first end 1151 is provided with a flange structure, which faces into the mounting groove 12 and forms the aforementioned limiting stop 1152. Alternatively, the limiting stop 1152 can also be formed by providing a limiting protrusion at the first end 1151. Forming the limiting stop 1152 with a flange structure simplifies the overall structure. Alternatively, in this embodiment, the limiting stop 1152 can also be provided on the limiting plate 116.

[0057] The mounting plate 115 is also provided with a mounting hole 1156 on the side facing the second end 1153. When the battery pack 3 is pushed into the mounting groove 12 from the second end 1153 until it abuts against the limiting stop 1152, the battery pack 3 is installed in place. At this time, fasteners can be passed through the mounting hole 1156 and connected to the mounting component 5 provided on the battery pack 3 to improve the stability of the battery pack 3 in the installed state.

[0058] like Figure 6 As shown, the second end 1153 of the mounting plate 115 is provided with a second bending structure 1154. The second bending structure 1154 is disposed toward the side away from the mounting groove 12, and the second bending structure 1154 forms a guide surface 1155 on one side wall of the mounting groove 12. During installation, the guide surface 1155 can provide guidance for the battery pack 3, which facilitates the installation operation of the battery pack 3 and reduces the probability of damage to the battery pack 3 caused by collision between the battery pack 3 and the mounting part 11, thereby providing protection for the installation of the battery pack 3.

[0059] like Figure 7 As shown, this embodiment also provides an energy storage device, which includes a cabinet 2, a battery pack 3, and an installation rail 1 as described above. The installation rail 1 is disposed inside the cabinet 2 and installed on the side wall of the cabinet 2, and the battery pack 3 is installed on the installation rail 1.

[0060] The technical effect of this energy storage device is similar to that of the mounting rail 1 of the battery pack mentioned above, and will not be described in detail here to save space.

[0061] like Figure 8 and Figure 9As shown, the energy storage device is also equipped with an installation beam 4, which is connected to the side wall of the cabinet 2. The installation guide rail 1 is provided with an installation point 1161 that is connected to the installation beam 4.

[0062] The limiting plate 116 is also provided with an installation point 1161. Of course, in this embodiment, there is no restriction on the connection method between the mounting part 11 and the cabinet 2. For example, the mounting plate 115 can also be provided with an installation point 1161, and the limiting plate 116 can be provided with an installation point 1161 to connect with the mounting beam 4, which can simplify the installation operation. The heat dissipation protrusion 113 can be set to avoid the location of the installation point 1161, so that the heat dissipation protrusion 113 is provided around the periphery of the installation point 1161. It is possible that the heat dissipation protrusion 113 is provided on only one side of the periphery of the installation point 1161, or the heat dissipation protrusion 113 is provided on both sides of the installation point 1161, or the heat dissipation protrusion 113 is provided at all positions around the periphery of the installation point 1161.

[0063] Of course, the mounting rail 1 can also be directly connected to the side wall of the cabinet 2. The mounting beam 4 facilitates the installation operation between the mounting rail 1 and the cabinet 2. After the mounting beam 4 is connected to the mounting rail 1, a gap is left between the mounting rail 1 and the side wall of the cabinet 2 to accommodate the heat dissipation protrusion 113.

[0064] The structure of the mounting beam 4 is not limited. It can be a hollow tubular structure or a rod-shaped structure. The mounting guide rail 1 and the mounting beam 4 can be connected by fastening, riveting, or other methods. There are no specific restrictions here.

[0065] like Figure 9 As shown, the cabinet 2 has two mounting beams 4 on one side, and the mounting rail 1 has two mounting points 1161. Each mounting point 1161 is connected to a corresponding mounting beam 4. Of course, the cabinet 2 can also have one, three or more mounting beams 4 on one side. The setting of two mounting beams 4 can improve the installation stability of the battery pack 3 while simplifying the overall structure.

[0066] like Figure 9 The energy storage device shown has multiple mounting rails 1 arranged at intervals along the height direction. Each set of mounting rails 1 is equipped with a battery pack 3, which can accommodate more battery packs 3 and improve the energy storage capacity of the energy storage device.

[0067] like Figure 9 As shown, the mounting beam 4 extends along the height direction, which is perpendicular to the first and second directions mentioned above. Each mounting beam 4 is connected to each mounting guide rail 1. In this way, the internal structure of the cabinet 2 can be simplified, the number of mounting beams 4 can be reduced, and the cost can be reduced.

[0068] The heat dissipation protrusion 113 of the mounting rail 1 can be in contact with the inner wall of the cabinet 2. The heat of the battery pack 3 is dissipated through the heat dissipation protrusion 113, and part of it can be dissipated through the side wall of the cabinet 2 to further improve the heat dissipation effect.

[0069] Of course, the heat dissipation protrusion 113 of the mounting rail 1 and the inner wall of the cabinet 2 can also be spaced apart to facilitate the installation of the mounting rail 1.

[0070] After the mounting rail 1 is installed inside the cabinet 2, a heat dissipation duct can be formed between the inner wall of the cabinet 2 and the mounting rail 1. The heat dissipation protrusion 113 of the mounting rail 1 is located inside the heat dissipation duct. The energy storage device also includes a fan (not shown in the figure). The fan is located in the heat dissipation duct and is used to provide circulation power for the heat dissipation air in the heat dissipation duct, so that the external heat dissipation air enters the heat dissipation duct and exchanges heat with the heat dissipation protrusion 113 to achieve cooling of the battery pack 3.

[0071] The airflow direction for heat dissipation can be from top to bottom or from bottom to top, and the airflow ducts on both sides of the mounting rail 1 can be interconnected or independent. Of course, in this embodiment, there is no restriction on the airflow direction; for example, the airflow can also be along the front-to-back direction of the cabinet 2.

[0072] In this embodiment, there are no restrictions on the shape, number, or arrangement of the heat dissipation protrusions 113, such as... Figure 2 , Figure 3 and Figure 4 As shown, the side wall of the mounting part 11 away from the limiting surface 112 is provided with a plurality of spaced heat dissipation fins 114. The heat dissipation fins 114 form heat dissipation protrusions 113, and the heat dissipation fins 114 are parallel to the flow direction of the heat dissipation air in the heat dissipation air duct. When the heat dissipation air flows along the height direction, the heat dissipation fins 113 extend along the height direction, so that the heat dissipation air can pass through the gaps between the heat dissipation fins 114 and carry away the heat, thereby improving the heat dissipation effect.

[0073] Of course, the heat dissipation protrusion 113 can also be other structures that protrude from the surface of the mounting part 11, such as protrusions, protruding pillars, etc.

[0074] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0075] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0076] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A mounting rail for a battery pack (3), characterized in that, The battery pack mounting rail (1) includes two sets of mounting parts (11) spaced apart along a first direction. The mounting part (11) includes a mounting plate (115) and a limiting plate (116) connected to each other. Along the first direction, the limiting plates (116) of the two sets of mounting parts (11) are arranged in parallel and side by side, and the two mounting plates (115) are located between the two limiting plates (116). The mounting part (11) is also provided with a heat dissipation protrusion (113) on the side surface opposite to the battery pack (3).

2. The battery pack mounting rail according to claim 1, characterized in that, The mounting plate (115) also has a flexible heat-conducting layer on the side wall facing the battery pack (3).

3. The battery pack mounting rail according to claim 1, characterized in that, The limiting plate (116) has the heat dissipation protrusion (113) on the side wall away from the battery pack (3).

4. The mounting rail for the battery pack according to any one of claims 1-3, characterized in that, The mounting plate (115) is further provided with a limiting stop (1152) at its first end (1151) along the second direction, the first direction being perpendicular to the second direction.

5. The battery pack mounting rail according to claim 4, characterized in that, The mounting plate (115) has a second bending structure (1154) at its second end (1153) along the second direction, which is positioned away from the battery pack (3), and the second bending structure (1154) has a guide surface (1155).

6. An energy storage device, characterized in that, It includes a cabinet (2), a battery pack (3), and an installation rail (1) as described in any one of claims 1-5, wherein the installation rail (1) is disposed inside the cabinet (2).

7. The energy storage device according to claim 6, characterized in that, The side wall of the cabinet (2) is also provided with a mounting beam (4), and the mounting guide rail (1) is provided with a mounting point (1161) connected to the mounting beam (4). The periphery of the mounting point (1161) is provided with a heat dissipation protrusion (113).

8. The energy storage device according to claim 6, characterized in that, The heat dissipation protrusion (113) of the mounting rail (1) contacts the inner wall of the cabinet (2).

9. The energy storage device according to any one of claims 6-8, characterized in that, A heat dissipation duct is formed between the inner wall of the cabinet (2) and the mounting rail (1), and the heat dissipation protrusion (113) of the mounting rail (1) is located inside the heat dissipation duct. The energy storage device also includes a fan located in the heat dissipation duct.

10. The energy storage device according to claim 9, characterized in that, The mounting part (11) is provided with a plurality of heat dissipation fins (114) arranged at intervals and in parallel. The heat dissipation fins (114) are parallel to the flow direction of the heat dissipation air duct, and the heat dissipation fins (114) form the heat dissipation protrusion (113).

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