Air-cooled battery plug-in box convenient to maintain and low in cost

Abstract

The utility model provides an air-cooled battery subrack which is convenient to maintain and low in cost, the air-cooled battery subrack comprises a battery module, a box body arranged below the battery module and a cover plate arranged above the battery module, the battery module is detachably connected with the box body, and the battery module is detachably connected with the cover plate; a detachable BMS controller, a fan and a wiring terminal are arranged at one end of the box body, and the wiring terminal is connected with a terminal on the battery module through a conductive piece; at least two battery modules are arranged at intervals, and ventilation gaps exist between every two adjacent battery modules and between the battery modules and the inner wall of the box body. The air-cooled battery plug-in box convenient to maintain and low in cost has the advantages of being low in cost, convenient to maintain, light in weight, high in strength and low in temperature difference. The battery modules are arranged on the box body at intervals, and the ventilation gaps are formed between every two adjacent battery modules and between the battery modules and the inner wall of the box body, so that a complicated runner structure does not need to be mounted.

Description

Technical Field

[0001] This utility model belongs to the field of battery box technology, and in particular relates to a wind-cooled battery box that is easy to maintain and has low cost. Background Technology

[0002] Currently, battery systems play a crucial role in modern energy storage solutions. Furthermore, the thermal management of individual battery cells or battery packs directly impacts the system's lifespan, safety, and efficiency. Simultaneously, market demand for storage devices capable of independent off-grid processing, large-scale integration, and intelligent system management is steadily increasing.

[0003] To address issues like overheating and expansion that batteries experience under high temperatures, and to improve battery efficiency and lifespan, battery air-cooling technology has emerged. This technology utilizes airflow to dissipate heat and lower the battery temperature by placing fans or small air-cooling devices around the battery. However, current air-cooled enclosures typically have complex flow channel structures, resulting in high costs. Furthermore, the need for periodic replacement of fans and other equipment during long-term operation and maintenance makes maintenance inconvenient and increases costs, hindering its widespread adoption. Utility Model Content

[0004] In view of this, the present invention aims to propose a convenient and low-cost air-cooled battery box to solve the problem of inconvenient maintenance of existing air-cooled battery boxes.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A convenient and low-cost air-cooled battery box includes a battery module, a housing located below the battery module, and a cover plate located above the battery module. The battery module and the housing, as well as the battery module and the cover plate, are detachably connected. One end of the housing is equipped with a detachable BMS controller, a fan, and wiring terminals. The wiring terminals are connected to terminals on the battery module via conductive components. At least two battery modules are spaced apart, and ventilation gaps exist between adjacent battery modules and between the battery module and the inner wall of the housing.

[0007] Furthermore, the battery module has end plates at its left and right ends, and the end plates are provided with fasteners and fixing bolts; the cover plate is provided with snap-fit ​​holes that cooperate with the fasteners; and the housing is provided with crossbeams at the positions corresponding to the end plates, and the crossbeams are provided with threaded holes that cooperate with the fixing bolts.

[0008] Furthermore, the buckle is provided with a receiving groove for accommodating the conductive component, and the conductive component is mounted on the buckle by a positioning screw.

[0009] Furthermore, the buckle has a baffle at one end facing the center of the battery module and a stepped recess at the other end.

[0010] Furthermore, the buckle is provided with grid-like reinforcing ribs at the positions corresponding to the receiving grooves.

[0011] Furthermore, the buckle is provided with a connecting part at the bottom and a snap-fit ​​part at the top. The end plate is provided with a connecting groove that snaps into the connecting part. Two snap-fit ​​parts are provided at intervals, and a receiving groove for accommodating conductive parts is formed between the two snap-fit ​​parts.

[0012] Furthermore, the end plate has several grooves arranged in a grid pattern on the side facing out of the box.

[0013] Furthermore, the cover plate is provided with protrusions for shielding conductive components.

[0014] Furthermore, the enclosure includes a base and a panel disposed at one end of the base. The panel and the base are integrally formed, and the BMS controller, fan, and wiring terminals can all be detachably mounted on the panel.

[0015] Furthermore, the fan and the battery module are configured in a one-to-one correspondence.

[0016] Compared with existing technologies, the air-cooled battery box described in this utility model, which is convenient to maintain and low in cost, has the following advantages:

[0017] This utility model discloses a convenient and low-cost air-cooled battery box, which has the advantages of low cost, easy maintenance, light weight, high strength, and low temperature difference. By arranging battery modules at intervals on the box and forming ventilation gaps between adjacent battery modules and between the battery modules and the inner wall of the box, a complex airflow system can be achieved without the need for a complex flow channel structure. Furthermore, by simultaneously dissipating heat from both sides of each battery cell within the battery module, the temperature difference between the cells is relatively low, which helps improve the consistency of the cells. At the same time, by providing a detachable BMS controller, fan, and wiring terminals on the box, operators can easily upgrade and maintain these components. Attached Figure Description

[0018] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of a wind-cooled battery box that is easy to maintain and has low cost, as described in an embodiment of this utility model.

[0020] Figure 2This is an exploded view of a wind-cooled battery box that is easy to maintain and has low cost, as described in an embodiment of this utility model.

[0021] Figure 3 This is an exploded view of the casing of a convenient and low-cost air-cooled battery box according to an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the structure of a snap-fit ​​component in a wind-cooled battery box that is easy to maintain and has low cost, as described in an embodiment of this utility model.

[0023] Figure 5 This is a schematic diagram of the crossbeam structure in a wind-cooled battery box that is easy to maintain and has low cost, as described in an embodiment of this utility model.

[0024] Figure 6 This is a schematic diagram of the structure of the casing of a wind-cooled battery box that is easy to maintain and has low cost, as described in an embodiment of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Fan; 2. Protection board; 3. BMS controller; 4. Handle; 5. Housing; 51. Crossbeam; 51. Threaded hole; 52. Panel; 53. Base; 54. Mounting hole; 6. Battery module; 61. End plate; 62. Ventilation gap; 63. Conductive component; 64. Positioning screw; 7. Clip; 71. Baffle; 72. Recess; 73. Screw hole; 74. Snap-fit ​​part; 75. Reinforcing rib; 76. Connecting part; 8. Cover plate; 81. Protrusion; 82. Snap-fit ​​hole; 9. Fixing bolt; 10. Terminal block. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] A convenient and low-cost air-cooled battery pack, such as Figures 1 to 6 As shown, the device includes a battery module 6, a housing 5 located below the battery module 6, and a cover plate 8 located above the battery module 6. The battery module 6 and the housing 5, as well as the battery module 6 and the cover plate 8, are detachably connected. One end of the housing 5 is equipped with a detachable BMS controller 3, a fan 1, and a wiring terminal 10. The wiring terminal 10 is connected to the terminals on the battery module 6 through a conductive component 63. At least two battery modules 6 are spaced apart, and there are ventilation gaps 62 between adjacent battery modules 6 and between the battery module 6 and the inner wall of the housing 5.

[0032] For example, the conductive component 63 can be a conventional conductive device such as a copper busbar or aluminum busbar to achieve a conductive connection between the terminal block 10 and the battery module 6. The battery module 6 can be an existing battery pack, and the BMS controller 3 and fan 1 can both be existing equipment, using existing conventional power supply and control methods. Using the BMS controller 3 and fan 1 to protect the battery pack is a common technique in this field and will not be elaborated further here. In addition, an insulating sheet can be provided between the battery module 6 and the housing 5 to provide insulation.

[0033] In practical applications, by using a detachable method to connect the bottom of the battery module 6 to the housing 5 and the top of the battery module 6 to the cover plate 8, not only can the safety of the battery module 6 be ensured, but it is also convenient for subsequent maintenance of the battery module 6. When maintaining, the operator only needs to selectively remove the cover plate 8 or the housing 5 as needed, without having to separate the cover plate 8 and the housing 5 before maintaining the battery module 6. Compared with the existing housing 5, disassembly and maintenance are more convenient.

[0034] Preferably, the housing 5 includes a base 53 and a panel 52 disposed at one end of the base 53. The panel 52 and the base 53 are integrally formed. The BMS controller 3, the fan 1 and the wiring terminal 10 can all be detachably mounted on the panel 52.

[0035] For example, by integrally molding the panel 52 with the housing 5, the manufacturing process is simple and the structural strength is higher. The BMS controller 3, fan 1, and terminal block 10 can be integrated and mounted on the panel 52 using conventional methods such as screws, facilitating subsequent maintenance of these components. Matching mounting holes 54 can be provided on the panel 52 for the BMS controller 3, fan 1, and terminal block 10 to facilitate assembly and subsequent maintenance of each component.

[0036] In practical applications, a protection plate 2 can also be installed on the panel 52 at the position corresponding to the BMS controller 3. The protection plate 2 is installed and fixed on the panel 52 by conventional methods such as screws to protect the BMS controller 3 body.

[0037] Preferably, each fan 1 corresponds to one battery module 6. Two, three, or more battery modules 6 can be spaced apart. To control costs and ensure effective heat dissipation of the battery compartment, two battery modules 6 can be spaced apart, and two corresponding fans 1 can be installed. By setting two battery modules 6 and two fans 1, three ventilation gaps 62 can be formed within the housing 5. The two fans 1 ventilate and dissipate heat through these three ventilation gaps 62, ensuring the effective heat dissipation of the two battery modules 6. Furthermore, those skilled in the art can select an appropriate number of battery modules 6 and fans 1 according to actual needs, which will not be elaborated upon here.

[0038] In an optional embodiment, a handle 4 may also be mounted on the panel 52. The handle 4 can be mounted on the panel 52 by conventional means such as screws. By providing the handle 4, it is also convenient for operators to assemble and maintain this battery compartment.

[0039] Preferably, the battery module 6 has end plates 61 at its left and right ends, and the end plates 61 are provided with fasteners 7 and fixing bolts 9; the cover plate 8 is provided with snap-fit ​​holes 82 that cooperate with the fasteners 7; the housing 5 is provided with crossbeams 51 at positions corresponding to the end plates 61, and the crossbeams 51 are provided with threaded holes 511 that cooperate with the fixing bolts 9.

[0040] For example, the crossbeam 51 can be installed and fixed on the box 5 by conventional methods such as welding. In order to ensure the stability of the connection between the end plate 61 and the crossbeam 51, each end plate 61 can be installed and fixed on the crossbeam 51 by two fixing bolts 9.

[0041] In practical applications, by providing end plates 61 at both ends of the battery module 6 and fixing the end plates 61 to the crossbeam 51 using fixing bolts 9, the stability and safety of the battery module 6 within the housing 5 are improved, while also meeting the requirements for convenient disassembly and maintenance of the battery module 6. Specifically, the end plates 61 and the battery module 6 can be fixed using conventional methods such as straps to ensure a stable connection between the battery module 6 and the end plates 61, which will not be elaborated further here.

[0042] Preferably, the latching member 7 is provided with a receiving groove for accommodating the conductive member 63, and the conductive member 63 is mounted on the latching member 7 by positioning screws 64. For example, the conductive member 63 can be mounted on the latching member 7 by two positioning screws 64, and the latching member 7 is provided with screw holes 73 that mate with the positioning screws 64.

[0043] In practical applications, by utilizing the receiving groove on the buckle 7 to cooperate with the conductive component 63, the conductive component 63 can be effectively limited, ensuring that the conductive component 63 can stably connect the wiring terminal 10 and the terminal of the battery module 6.

[0044] Preferably, the latching member 7 has a baffle 71 at one end facing the middle of the battery module 6, and a stepped recess 72 at the other end. For example, the latching member 7 can be an injection molded part, with the baffle 71 integrally formed with it. By utilizing the baffle 71 in conjunction with the battery module 6, the stability and insulation distance safety of the latching member 7 are improved. Furthermore, by providing the stepped recess 72 on the latching member 7, the structural strength and insulation distance safety of the end of the latching member 7 are improved.

[0045] Preferably, the fastener 7 has a grid-like reinforcing rib 75 at the position corresponding to the receiving groove. Specifically, the reinforcing rib 75 is integrally formed with the fastener 7, and the reinforcing rib 75 also helps to improve the structural strength of the fastener 7.

[0046] Preferably, the buckle 7 has a connecting part 76 at the bottom and a snap-fit ​​part 74 at the top. The end plate 61 has a connecting groove that snaps into the connecting part 76. Two snap-fit ​​parts 74 are spaced apart, and a receiving groove for accommodating the conductive part 63 is formed between the two snap-fit ​​parts 74.

[0047] In practical applications, after the battery module 6 is installed on the housing 5, the buckle 7 can be installed and fixed on the end plate 61 first, and then the conductive part 63 can be installed to connect the wiring terminal 10 with the terminal on the battery module 6. Finally, the cover plate 8 can be installed and fixed with the buckle 7. The operation is very simple and reduces the difficulty of subsequent maintenance of this battery box.

[0048] Preferably, the end plate 61 has several grooves arranged in a grid pattern on the side facing outward from the housing 5. By setting the grooves, it is beneficial to reduce the mass of the end plate 61 while ensuring the structural strength of the end plate 61, and to increase the heat dissipation area of ​​the end plate 61, which is conducive to improving the overall heat dissipation effect of the battery module 6.

[0049] Preferably, the cover plate 8 has a protrusion 81 for shielding the conductive component 63. By providing the protrusion 81 on the cover plate 8, the conductive component 63 can be effectively shielded and protected, which helps to improve the safety of this battery box during use. In addition, the cover plate 8 can be made of insulating materials such as plastic to ensure that it can provide insulation protection for the battery module 6.

[0050] This utility model discloses a convenient and low-cost air-cooled battery box, which has the advantages of low cost, easy maintenance, light weight, high strength, and low temperature difference. By arranging battery modules at intervals on the box and forming ventilation gaps between adjacent battery modules and between the battery modules and the inner wall of the box, a complex airflow system can be achieved without the need for a complex flow channel structure. Furthermore, by simultaneously dissipating heat from both sides of each battery cell within the battery module, the temperature difference between the cells is relatively low, which helps improve the consistency of the cells. At the same time, by providing a detachable BMS controller, fan, and wiring terminals on the box, operators can easily upgrade and maintain these components.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low cost, easy to maintain, air-cooled battery cabinet, characterized in that: The application relates to a battery module (6), a box (5) arranged below the battery module (6), and a cover plate (8) arranged above the battery module (6), wherein the battery module (6) and the box (5) are detachably connected, the battery module (6) and the cover plate (8) are detachably connected, one end of the box (5) is provided with a detachable BMS controller (3), a fan (1) and a wiring terminal (10), the wiring terminal (10) is connected with a terminal on the battery module (6) through a conductive part (63), at least two battery modules (6) are arranged at intervals, ventilation gaps (62) exist between two adjacent battery modules (6) and between the battery module (6) and the inner wall of the box (5), end plates (61) are arranged at the left and right ends of the battery module (6) correspondingly, buckle parts (7) and fixing bolts (9) are arranged on the end plates (61), the cover plate (8) is provided with clamping holes (82) matched with the buckle parts (7), and the box (5) is provided with cross beams (51) at positions corresponding to the end plates (61), and the cross beams (51) are provided with screw holes (511) matched with the fixing bolts (9).

2. The low cost and easy maintenance air-cooled battery cabinet according to claim 1, characterized in that: The buckle part (7) is provided with a containing groove for containing the conductive part (63), and the conductive part (63) is installed on the buckle part (7) through a positioning screw (64).

3. The low cost and easy maintenance air-cooled battery cabinet according to claim 2, characterized in that: One end of the buckle part (7) towards the middle part of the battery module (6) is provided with a baffle (71), and the other end is provided with a stepped recess (72).

4. The low cost and easy maintenance air-cooled battery cabinet according to claim 2, characterized in that: The buckle part (7) is provided with a grid-shaped reinforcing rib (75) at a position corresponding to the containing groove.

5. A low cost and easy to maintain air-cooled battery cabinet according to any of claims 2-4, characterized in that: The buckle part (7) is provided with a connecting part (76) below and a clamping part (74) above, the end plate (61) is provided with a connecting groove matched with the connecting part (76), and the clamping part (74) is arranged at intervals and forms a containing groove for containing the conductive part (63) between the two clamping parts (74).

6. The low cost and easy maintenance air-cooled battery cabinet according to claim 5, characterized in that: The end plate (61) is provided with a plurality of recesses arranged in a grid shape on a side facing outside the box (5).

7. The low cost and easy maintenance air-cooled battery cabinet according to claim 1, characterized in that: The cover plate (8) is provided with a protruding part (81) for shielding the conductive part (63).

8. The low cost and easy maintenance air-cooled battery cabinet according to claim 1, characterized in that: The box (5) comprises a base (53) and a panel (52) arranged at one end of the base (53), the panel (52) is integrally formed with the base (53), and the BMS controller (3), the fan (1) and the wiring terminal (10) are detachably installed on the panel (52).

9. The low cost and easy maintenance air-cooled battery cabinet according to claim 1 or 8, characterized in that: The fan (1) is arranged in one-to-one correspondence with the battery module (6).

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