Air duct plate of battery box and battery box

Abstract

The utility model provides an air duct plate of a battery box and the battery box, the air duct plate is provided with a plate body, the front surface and the back surface of the plate body are respectively provided with a battery cell limiting groove, and the battery cell limiting grooves are used for being matched and installed with battery cells; an air duct structure is arranged in the plate body, the air duct structure is of a hollow structure, the air duct structure is communicated with the battery cell limiting groove, the air duct structure comprises a first air duct opening, a second air duct opening and an air duct support, the first air duct opening is communicated with the left side surface of the plate body, and the second air duct opening is communicated with the right side surface of the plate body; the air duct bracket is used as an interval supporting part between the battery cell limiting grooves; wherein the air duct bracket comprises a plurality of first brackets and a plurality of second brackets, and the first brackets and the second brackets are vertically intersected, so that the air duct bracket can be used as a supporting point, the battery cell is tightly connected with the air duct plate based on the battery cell limiting groove, and the heat dissipation efficiency of the air duct plate on the battery cell is further improved; and the stability of connection between the air duct plate and the battery cell is improved.

Description

Technical Field

[0001] This utility model relates to the field of batteries, and in particular to a duct plate for a battery box and a battery box. Background Technology

[0002] Thermal management of battery boxes has always been a key focus in battery box design and application. The heat dissipation method of battery boxes is generally air cooling. However, in the current technology, the fit between the general air cooling plate and the battery cell is not high, which results in low heat dissipation efficiency of the battery cell. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a duct plate and a battery box for a battery box. By using a duct support as a support point, the battery cell is tightly connected to the duct plate based on the battery cell limiting groove, thereby improving the heat dissipation efficiency of the duct plate for the battery cell, and at the same time, improving the stability of the connection between the duct plate and the battery cell.

[0004] To achieve the above objectives, in a first aspect, embodiments of the present invention provide a duct plate for a battery box and a battery box, comprising:

[0005] The board body has cell limiting grooves on its front and back sides, which are used to match and install the cells.

[0006] The board body has an internal air duct structure with a hollow structure. The air duct structure is connected to the battery cell limiting groove. The air duct structure includes a first air duct opening, a second air duct opening, and an air duct support. The first air duct opening is connected to the left side of the board body, the second air duct opening is connected to the right side of the board body, and the air duct support is used as a spacer support component between the battery cell limiting grooves.

[0007] The air duct support includes multiple first supports and multiple second supports, which are arranged perpendicularly to each other.

[0008] Furthermore, in some embodiments, the first air duct opening and the second air duct opening are arranged opposite to each other.

[0009] Furthermore, in some embodiments, the left and right sides of the plate are provided with multiple clearance grooves, which are used as mounting slots for assembling multiple battery cells together.

[0010] Furthermore, in some embodiments, the upper side surface of the plate is provided with a plurality of aluminum busbar positioning posts, which are used as mounting components for assembling multiple battery cells together.

[0011] Furthermore, in some embodiments, the number of aluminum row positioning posts is four.

[0012] Furthermore, in some embodiments, the plate body has a square structure.

[0013] To achieve the above objectives, in a second aspect, embodiments of the present invention provide a battery box, comprising:

[0014] The housing includes multiple battery cells and multiple air duct plates as described above;

[0015] Each air duct plate is installed between each battery cell based on its respective cell limiting groove.

[0016] Furthermore, in some embodiments, the housing also includes multiple aluminum busbars for connecting the battery cells on both sides of the air duct plate.

[0017] Furthermore, in some embodiments, the aluminum busbar includes a first through hole, a second through hole, and a plurality of third through holes. The first through hole is fitted with a battery cell on one side of the air duct plate, the second through hole is fitted with a battery cell on the other side of the air duct plate, and each of the third through holes is fitted with a positioning post of each aluminum busbar of the air duct plate.

[0018] Furthermore, in some embodiments, the housing also includes multiple module fixing plates, which are respectively embedded in the respective clearance grooves of each air duct plate. The module fixing plates are used to fix the connection between the air duct plate and the battery cell.

[0019] According to an embodiment of the present invention, a battery box with a duct plate and a battery box has at least the following beneficial effects: A plate is provided, with cell limiting grooves on the front and back sides of the plate, which are used to mate and install with the cells; the plate has an internal duct structure, which is a hollow structure and is connected to the cell limiting grooves. The duct structure includes a first duct opening, a second duct opening, and a duct support. The first duct opening is connected to the left side of the plate, and the second duct opening is connected to the right side of the plate. The duct support serves as a spacer support between the cell limiting grooves. The duct support includes multiple first supports and multiple second supports, which are perpendicularly intersecting each other. This allows the cells to be tightly connected to the duct plate based on the cell limiting grooves, thereby improving the heat dissipation efficiency of the duct plate for the cells and enhancing the stability of the connection between the duct plate and the cells.

[0020] Other features and advantages of this invention will be set forth in the following description and will be apparent in part from the description. The objectives and other advantages of this invention can be realized and obtained through the structures particularly pointed out in the description and the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0023] Figure 1 This is a schematic diagram of an air duct plate for a battery box provided in some embodiments of this utility model;

[0024] Figure 2 This is a schematic diagram of a battery box provided in some embodiments of this utility model;

[0025] Figure 3 This is a schematic diagram showing the interlocking of the battery cell and the air duct plate according to some embodiments of this utility model;

[0026] Figure 4 This is a schematic diagram showing the interlocking of the battery cell and the air duct plate according to other embodiments of this utility model;

[0027] Reference numerals: duct plate 1000, plate body 1100, battery cell limiting groove 1110, duct structure 1120, first duct opening 1121, second duct opening 1122, duct support 1123, first support 1124, second support 1125, clearance groove 1130, aluminum strip positioning post 1140.

[0028] Battery box 2000, box body 2100, battery cell 2110, aluminum busbar 2120, first through hole 2121, second through hole 2122, third through hole 2123, module fixing plate 2130. Detailed Implementation

[0029] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0030] In the description of this utility model, the use of "first" and "second" is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] Thermal management of battery boxes has always been a key focus in battery box design and application. The heat dissipation method of battery boxes is generally air cooling. However, in the current technology, the fit between the general air cooling plate and the battery cell is not high, which results in low heat dissipation efficiency of the battery cell.

[0033] Based on this, this utility model embodiment provides a duct plate for a battery box and a battery box. The plate has a panel with cell limiting grooves on its front and back sides, used for pairing and mounting with the cells. The panel has an internal duct structure with a hollow design, connected to the cell limiting grooves. The duct structure includes a first duct opening, a second duct opening, and a duct support. The first duct opening is connected to the left side of the plate, and the second duct opening is connected to the right side of the plate. The duct support serves as a spacer support between the cell limiting grooves. The duct support includes multiple first supports and multiple second supports, arranged perpendicularly to each other. This allows the duct support to act as a support point, ensuring a tight connection between the cells and the duct plate based on the cell limiting grooves, thereby improving the heat dissipation efficiency of the duct plate and the stability of the connection between the duct plate and the cells.

[0034] Therefore, the embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0035] Reference Figure 1 As shown, Figure 1This is a schematic diagram of a duct plate for a battery box provided in some embodiments of the present invention. The duct plate 1000 is provided with a plate body 1100. The front and back sides of the plate body 1100 are respectively provided with a cell 2110 limiting groove 1110. The cell 2110 limiting groove 1110 is used to match and install with the cell 2110.

[0036] The interior of the plate 1100 is provided with an air duct structure 1120. The air duct structure 1120 is a hollow structure and is connected to the limiting groove 1110 of the battery cell 2110. The air duct structure 1120 includes a first air duct opening 1121, a second air duct opening 1122 and an air duct support 1123. The first air duct opening 1121 is connected to the left side of the plate 1100 and the second air duct opening 1122 is connected to the right side of the plate 1100. The air duct support 1123 is used as a spacer support component between the limiting grooves 1110 of the battery cell 2110.

[0037] It should be noted that the air duct structure 1120 has a hollow design, which allows air to flow smoothly inside the plate 1100. When the battery generates heat during operation, air can flow quickly through the air duct to carry away the heat, preventing the battery from overheating and affecting its performance and lifespan.

[0038] The air duct support 1123 includes multiple first supports 1124 and multiple second supports 1125, which are perpendicularly intersecting to form a grid-like support structure. This structure effectively disperses forces from all directions, making the air duct support 1123 more stable when subjected to wind pressure or other external forces. For example, during the operation of the battery cell 2110, high-speed airflow passes through the air duct, and the resulting wind pressure exerts a force on the air duct support 1123. The perpendicularly intersecting support structure can evenly distribute these forces, preventing deformation or damage to the support, thereby ensuring the normal operation of the air duct.

[0039] Furthermore, the vertically intersecting air duct supports 1123 can guide the airflow to a certain extent. When the airflow passes through the air duct structure 1120, the air duct supports 1123 will divide the airflow into multiple small airflows and guide them to be evenly distributed in the vertical and horizontal directions, providing more branches and channels for the air duct structure 1120, making the air duct layout more flexible and diverse, and helping to avoid the airflow from concentrating in a certain local area, thereby achieving a more uniform heat dissipation or ventilation effect.

[0040] Furthermore, the first air duct 1121 and the second air duct 1122 are positioned opposite each other, and the first air duct 1121 and the second air duct 1122 are respectively connected to the left and right sides of the plate 1100, allowing air to enter and exit from both sides, forming convection, thereby ensuring uniform heat dissipation for all parts of the battery. This helps prevent localized overheating of the battery and improves the overall heat dissipation efficiency of the battery.

[0041] It should be noted that the layout of the air duct structure 1120 is coordinated with the design of the cell 2110 limiting groove 1110, making full use of the internal space of the plate 1100. By rationally planning the position and direction of the air duct, the heat dissipation requirements can be met while minimizing interference and impact on other components inside the battery, thus achieving efficient use of space.

[0042] Furthermore, the left and right sides of the plate 1100 are provided with a plurality of clearance grooves 1130, which are used as mounting slots for assembling a plurality of battery cells 2110 together.

[0043] The recessed groove 1130 provides a clear mounting position for the battery cell 2110, enabling workers or automated assembly equipment to place the cell 2110 more accurately and quickly. Providing a designated mounting position for each cell 2110 simplifies the process of arranging them into the desired configuration. This can significantly improve assembly efficiency and reduce time and labor costs in the battery assembly process.

[0044] Furthermore, the upper side surface of the plate 1100 is provided with multiple aluminum busbars 2120 positioning posts 1140. These posts are used as mounting components for assembling multiple battery cells 2110, providing precise positioning points for the battery cell 2110 mounting components. This ensures that the battery cells 2110 can be accurately aligned and positioned during assembly, avoiding problems such as misalignment or uneven spacing between the cells 2110. For example, in a battery module, multiple battery cells 2110 need to be assembled in a specific arrangement. The aluminum busbars 2120 positioning posts 1140 ensure that each battery cell 2110 is in the correct position, thereby guaranteeing the overall performance and reliability of the battery module.

[0045] In one possible embodiment, the number of aluminum strip 2120 positioning posts 1140 is four.

[0046] It should be noted that the plate 1100 can be a square structure, and this application does not impose any specific limitations.

[0047] Secondly, referring to Figure 2 , Figure 3 and Figure 4 As shown, Figure 2This is a schematic diagram of a battery box provided in some embodiments of this utility model. Figure 3 This is a schematic diagram showing the interlocking of the battery cell and the air duct plate according to some embodiments of this utility model. Figure 4 This is a schematic diagram of the interlocking of battery cells and air duct plates provided in other embodiments of the present invention. The present invention also proposes a battery box 2000, which includes a box body 2100, a box body 2100 including a plurality of battery cells 2110 and a plurality of air duct plates 1000 as described in the first aspect; each air duct plate 1000 is respectively installed between each battery cell 2110 based on its respective battery cell 2110 limiting groove 1110, thereby improving the heat dissipation efficiency inside the battery box 2000 through the air duct plate 1000 as described in the first aspect.

[0048] Furthermore, the housing 2100 also includes multiple aluminum busbars 2120, which are used to connect the battery cells 2110 on both sides of the air duct plate 1000. The aluminum busbars 2120 include a first through hole 2121, a second through hole 2122 and multiple third through holes 2123. The first through hole 2121 is fitted with the battery cell 2110 on one side of the air duct plate 1000, the second through hole 2122 is fitted with the battery cell 2110 on the other side of the air duct plate 1000, and each of the third through holes 2123 is fitted with the positioning post 1140 of each aluminum busbar 2120 of the air duct plate 1000.

[0049] It should be noted that the aluminum busbar 2120 is fitted with the battery cells 2110 on both sides of the air duct plate 1000 through the first through hole 2121 and the second through hole 2122, respectively, providing a stable and reliable electrical connection between the battery cells 2110. This connection method ensures smooth current transmission between the battery cells 2110, reduces contact resistance, improves the overall electrical performance of the battery box 2000, and the through hole design of the aluminum busbar 2120 makes the connection of the battery cells 2110 simpler and more efficient. Compared with traditional welding or other complex connection methods, the fitting connection between the aluminum busbar 2120 and the battery cells 2110 is not only easy to operate, but also enables rapid assembly, improving production efficiency. At the same time, this connection method also reduces the risk of electrical failures caused by improper connection and lowers maintenance costs. The through hole design of the aluminum busbar 2120 makes the connection of the battery cells 2110 simpler and more efficient. Compared to traditional welding or other complex connection methods, the interlocking connection between the aluminum busbar 2120 and the battery cell 2110 is not only simple to operate but also enables rapid assembly, improving production efficiency. At the same time, this connection method reduces the risk of electrical faults caused by improper connections, lowering maintenance costs.

[0050] Furthermore, from Figure 2As can be seen, the housing 2100 also includes multiple module fixing plates 2130, which are respectively embedded in the corresponding clearance grooves 1130 of each air duct plate 1000. The module fixing plates 2130 are used to fix the connection between the air duct plate 1000 and the battery cell 2110, thereby effectively fixing the air duct plate 1000 and the battery cell 2110 together and preventing them from loosening or detaching. During the operation of the battery system, this stable fixing method ensures the stability of the electrical and mechanical connection between the air duct plate 1000 and the battery cell 2110. Furthermore, when facing external impacts or pressures, this reinforced structure can better withstand and disperse forces, protecting the internal battery components.

[0051] Furthermore, the module fixing plate 2130 ensures that the air duct plate 1000 and the battery cell 2110 maintain the correct alignment. Misalignment between the air duct plate 1000 and the battery cell 2110 could affect the performance of the battery system, such as causing uneven airflow distribution or poor electrical contact. By fixing it in its designed position, the module fixing plate 2130 optimizes the function of the battery system, enabling it to operate as intended, thus improving the overall performance and reliability of the battery system.

[0052] It should be understood that in this utility model, "at least one (item)" refers to one or more, and "more than one" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0053] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A duct plate for a battery box, characterized in that, include: The plate body has cell limiting grooves on its front and back sides, which are used to match and install the cells. The plate body has an internal air duct structure, which is a hollow structure. The air duct structure is connected to the battery cell limiting groove. The air duct structure includes a first air duct opening, a second air duct opening, and an air duct support. The first air duct opening is connected to the left side of the plate body, the second air duct opening is connected to the right side of the plate body, and the air duct support is used as a spacer support component between the battery cell limiting grooves. The air duct support includes multiple first supports and multiple second supports, which are arranged perpendicularly to each other.

2. The air duct plate according to claim 1, characterized in that, The first air duct opening and the second air duct opening are positioned opposite each other.

3. The air duct plate according to claim 1, characterized in that, The left and right sides of the plate are provided with multiple clearance grooves, which are used as mounting slots for assembling multiple battery cells together.

4. The air duct plate according to claim 1, characterized in that, The upper side surface of the plate is provided with multiple aluminum busbar positioning posts, which are used as mounting components for assembling multiple battery cells together.

5. The air duct plate according to claim 4, characterized in that, The number of aluminum positioning posts is four.

6. The air duct plate according to claim 1, characterized in that, The plate has a square structure.

7. A battery box, characterized in that, include: The housing includes a plurality of battery cells and a plurality of air duct plates as described in any one of claims 1 to 6; Each of the air duct plates is installed between the respective battery cells based on its respective battery cell limiting groove.

8. The battery box according to claim 7, characterized in that, The housing also includes multiple aluminum busbars, which are used to connect the battery cells on both sides of the air duct plate.

9. The battery box according to claim 8, characterized in that, The aluminum busbar includes a first through hole, a second through hole, and a plurality of third through holes. The first through hole is fitted with the battery cell on one side of the air duct plate, the second through hole is fitted with the battery cell on the other side of the air duct plate, and each of the third through holes is fitted with a positioning post of each aluminum busbar of the air duct plate.

10. The battery box according to claim 7, characterized in that, The housing also includes multiple module fixing plates, which are respectively embedded in the respective clearance grooves of each of the air duct plates. The module fixing plates are used to fix the connection between the air duct plate and the battery cell.

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