Battery shell cover with good sealing performance

Abstract

The utility model relates to the technical field of battery accessories, and discloses a battery shell cover with good sealing performance, which comprises a battery box and a top cover, the left side of the top cover is rotatably connected with the surface of the battery box through a hinge, the lower surface of the top cover is fixedly connected with a rubber sealing strip, the right side of the battery box is fixedly connected with a side shell, and the side shell is fixedly connected with a battery cover. A heat dissipation assembly and a limiting assembly are arranged in the side shell. The heat dissipation assembly is arranged in the battery box, heat in the battery box can be sucked into the side shell through the heat absorption holes in the lower surfaces of the limiting barrier strips under the matching action of the heat absorption fan and the cold discharge fan, and then the interior of the side shell is cooled through the semiconductor chilling plate; and then the cooled air is input into the battery box again through the air outlet holes in the surface of the strip-shaped air outlet shell at the bottom of the battery box, so that the heat dissipation and cooling effects in the battery box are ensured on the premise of keeping the sealing performance of the battery box.

Description

Technical Field

[0001] The utility model relates to the technical field of battery accessories, and more specifically to a battery case cover with good sealing performance. Background Art

[0002] Both the lithium battery cover plate and the battery case are important connection and protection components of the lithium battery. The battery cover plate and the battery case can provide good external protection for the lithium battery and are necessary components for the connection between the lithium battery and the outside. They are very common in the new energy vehicle industry. Common lithium battery cover plates include circular cover plates, square cover plates, etc. This patent mainly focuses on circular cover plates.

[0003] For example, a battery case cover with quick sealing as disclosed in the patent publication number CN220086197U includes: a battery cover, an extension part is extended and arranged at the bottom of the battery cover, a plurality of groups of buckles are arranged on the circumferential surface of the extension part, and a sealing part is integrally formed at the bottom of the extension part; a battery case, an accommodation cavity is formed inside, and an opening part communicated with the accommodation cavity is arranged at the top of the battery case. The utility model can quickly seal the battery case and the battery cover by the mutual cooperation of concave and convex buckles and buckle grooves, which can not only avoid the problem of gaps generated by the rebound of the battery cover during installation, but also effectively avoid the problem that the overflow of glue affects the beauty of the battery when using the sealing glue process for capping. At the same time, when repairing the battery, the battery case and the battery cover can be disassembled by using the buckles, and the battery cover does not need to be damaged. The sealing performance between the battery cover and the battery case can be improved by the sealing gasket, ensuring its long-term use and having a good sealing effect.

[0004] For the battery cover plate and the battery case proposed in the above patent documents, during the actual use process, in order to improve the dust-proof and moisture-proof performance between the battery cover and the battery case, the whole of the battery case is of a high-sealing structure, which results in very poor heat dissipation effect inside the battery case, and the battery is prone to unstable conditions when working at high temperatures. Therefore, it is necessary to improve the disadvantages existing in the structure of the battery case cover. Summary of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a battery case cover with good sealing performance, which has the advantages of improving the heat dissipation effect of the battery case while ensuring the sealing performance of the battery case, so as to solve the problems existing in the above background art.

[0006] The present utility model provides the following technical solution: A battery case cover with good sealing performance, including a battery box and a top cover. The left side of the top cover is rotatably connected to the surface of the battery box through a hinge. A rubber sealing strip is fixedly connected to the lower surface of the top cover. A side shell is fixedly connected to the right side of the battery box. A heat dissipation component and a limiting component are respectively arranged inside the side shell. The heat dissipation component is used for internally circulating and cooling the battery box, and the limiting component is used for limiting the top cover.

[0007] The heat dissipation component includes a semiconductor refrigeration chip fixedly embedded in the inner wall of the side shell. The refrigeration end of the semiconductor refrigeration chip is located inside the side shell, and the inner part of the side shell can be refrigerated by using the semiconductor refrigeration chip. A first installation partition and a second installation partition are fixedly connected to the inner wall of the side shell. The semiconductor refrigeration chip is arranged between the first installation partition and the second installation partition. An endothermic fan is fixedly connected to the upper surface of the first installation partition, and an air exhaust fan is fixedly connected to the upper surface of the second installation partition. Two limiting bars are fixedly connected between the left and right inner walls of the battery box. The limiting bar is a hollow shell structure, and a plurality of heat absorption holes are opened on the lower surface of the limiting bar. Two strip-shaped air outlet shells are fixedly connected to the inner bottom wall of the battery box. The positions of the strip-shaped air outlet shells correspond to those of the limiting bars, and a plurality of air outlet holes are opened on the upper surface of the strip-shaped air outlet shells. Under the combined action of the endothermic fan and the air exhaust fan, the heat inside the battery box can be sucked into the side shell through the heat absorption holes on the lower surface of the limiting bar, then the inner part of the side shell is cooled by using the semiconductor refrigeration chip, and then the cooled air is re-introduced into the battery box through the air outlet holes on the surface of the strip-shaped air outlet shell at the bottom of the battery box.

[0008] Further, two air inlet holes are opened on the right side of the battery box. The positions of the air inlet holes correspond to those of the limiting bars, and the air inlet holes connect the limiting bars with the inside of the side shell.

[0009] Further, two air exhaust holes are opened on the right side of the battery box. The positions of the air exhaust holes correspond to those of the strip-shaped air outlet shells, and the air exhaust holes connect the strip-shaped air outlet shells with the inside of the side shell.

[0010] Further, ventilation holes are opened on the surfaces of the first installation partition and the second installation partition. The positions of the two ventilation holes correspond to those of the endothermic fan and the air exhaust fan respectively.

[0011] Further, the air inlet end of the endothermic fan corresponds to the position of the air inlet hole, and the air outlet end of the air exhaust fan corresponds to the position of the air exhaust hole.

[0012] Furthermore, heat dissipation openings are provided on the surface of the side shell, and a heat dissipation fan is fixedly embedded in the inner wall of the heat dissipation opening. The position of the heat dissipation fan corresponds to the heat dissipation end of the semiconductor refrigeration sheet. The heat dissipation fan can be used to ventilate and dissipate heat from the heat dissipation end of the semiconductor refrigeration sheet.

[0013] Furthermore, the limiting component includes two operating knobs rotatably connected to the side surface of the side shell. A movable screw rod is fixedly connected to the surface of the operating knob. The end of the movable screw rod extends into the side shell, and a limiting block is threadedly connected to the surface of the movable screw rod. Two L-shaped positioning blocks are fixedly connected to the right side of the top cover.

[0014] Furthermore, a limiting insertion hole is provided on the surface of the positioning block. The position of the limiting insertion hole corresponds to the limiting block, and the limiting insertion hole matches the limiting block. A rectangular placement hole is provided on the upper surface of the side shell. The position of the rectangular placement hole corresponds to the positioning block.

[0015] The technical effects and advantages of the present utility model are as follows:

[0016] 1. By providing a heat dissipation component inside the battery box, the present utility model can, under the combined action of the heat absorption fan and the cold air discharge fan, suck the heat inside the battery box into the side shell through the heat absorption holes on the lower surface of the limiting strip, then use the semiconductor refrigeration sheet to cool the inside of the side shell, and then re-introduce the cooled air into the battery box through the air outlet holes on the surface of the strip-shaped air outlet shell at the bottom of the battery box, thereby ensuring the heat dissipation and cooling effects inside the battery box while maintaining the sealing performance of the battery box.

[0017] 2. By providing a limiting component, after closing the top cover of the battery box, the positioning blocks on the surface of the top cover can be inserted into the rectangular placement holes at the top of the side shell, and then by rotating the operating knob, the limiting block is driven to insert into the limiting insertion holes on the surface of the positioning block, thereby using the limiting block to limit the positioning block and realizing the fixation of the top cover. The operation is simple and the stability is high, avoiding the problem that the traditional battery cover is easily rusted when fixed with bolts. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the overall external structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the top view structure of the battery box of the present utility model;

[0020] Figure 3 is a schematic diagram of the front sectional structure of the battery box of the present utility model;

[0021] Figure 4 is a schematic diagram of the front sectional structure of the side shell of the present utility model;

[0022] Figure 5 For Figure 3 the enlarged structural schematic diagram at position A in

[0023] The reference numerals are: 1, battery box; 2, top cover; 3, rubber sealing strip; 4, side shell; 5, semiconductor refrigeration sheet; 6, first mounting partition; 7, second mounting partition; 8, heat absorption fan; 9, cold air discharge fan; 10, limit bar; 11, heat absorption hole; 12, strip-shaped air outlet shell; 13, air outlet hole; 14, air inlet hole; 15, exhaust hole; 16, ventilation hole; 17, cooling fan; 18, operation knob; 19, movable screw rod; 20, limit block; 21, positioning block; 22, limit jack; 23, rectangular placement hole; 24, guide block. Specific embodiments

[0024] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the drawings in the present invention. In addition, the forms of each structure described in the following embodiments are only examples. A battery case cover with good sealing performance involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0025] Referring to Figures 1 - 5 , the present invention provides a battery case cover with good sealing performance, including a battery box 1 and a top cover 2. The left side of the top cover 2 is rotatably connected to the surface of the battery box 1 through a hinge. A rubber sealing strip 3 is fixedly connected to the lower surface of the top cover 2. By providing the rubber sealing strip 3, the sealing effect between the top cover 2 and the battery box 1 can be improved.

[0026] A side shell 4 is fixedly connected to the right side of the battery box 1. A heat dissipation component and a limit component are respectively arranged inside the side shell 4. The heat dissipation component is used for internally circulating and cooling the battery box 1, and the limit component is used for limiting the top cover 2;

[0027] The limit component includes two operation knobs 18 rotatably connected to the side surface of the side shell 4. An activity screw rod 19 is fixedly connected to the surface of the operation knob 18. The end of the activity screw rod 19 extends into the side shell 4, and a limit block 20 is threadedly connected to the surface of the activity screw rod 19. Two L-shaped positioning blocks 21 are fixedly connected to the right side of the top cover 2.

[0028] A limit jack 22 is opened on the surface of the positioning block 21. The position of the limit jack 22 corresponds to that of the limit block 20, and the limit jack 22 matches the limit block 20. A rectangular placement hole 23 is opened on the upper surface of the side shell 4. The position of the rectangular placement hole 23 corresponds to that of the positioning block 21.

[0029] A limiting bottom plate is fixedly connected to the inner wall of the side shell 4. A guiding sliding groove is formed on the upper surface of the limiting bottom plate. A guiding block 24 is fixedly connected to the lower surface of the limiting block 20. The guiding block 24 is slidably connected to the inner wall of the guiding sliding groove. The guiding block 24 and the guiding sliding groove can play a role in limiting and guiding the limiting block 20.

[0030] It should be noted that by setting the limiting component, after closing the top cover 2 of the battery box 1, the positioning block 21 on one side of the top cover 2 can be inserted into the rectangular placement hole 23 at the top of the side shell 4. Then, by rotating the operating knob 18 to drive the movable screw rod 19 to rotate, the limiting block 20 is driven to insert into the limiting insertion hole 22 on the surface of the positioning block 21, so as to limit the positioning block 21 by using the limiting block 20, realizing the fixation of the top cover 2, with simple operation and high stability.

[0031] The heat dissipation component includes a semiconductor refrigeration sheet 5 fixedly embedded in the inner wall of the side shell 4, and the refrigeration end of the semiconductor refrigeration sheet 5 is located inside the side shell 4, which can be used to refrigerate the inside of the side shell 4. A heat dissipation port is formed on the surface of the side shell 4, and a heat dissipation fan 17 is fixedly embedded in the inner wall of the heat dissipation port. The position of the heat dissipation fan 17 corresponds to the heat dissipation end of the semiconductor refrigeration sheet 5, and the heat dissipation fan 17 can be used to ventilate and dissipate heat from the heat dissipation end of the semiconductor refrigeration sheet 5.

[0032] A first installation partition 6 and a second installation partition 7 are fixedly connected to the inner wall of the side shell 4. The semiconductor refrigeration sheet 5 is arranged between the first installation partition 6 and the second installation partition 7. An endothermic fan 8 is fixedly connected to the upper surface of the first installation partition 6, and an exhaust cooling fan 9 is fixedly connected to the upper surface of the second installation partition 7. Ventilation holes 16 are formed on the surfaces of the first installation partition 6 and the second installation partition 7, and the positions of the two ventilation holes 16 correspond to the endothermic fan 8 and the exhaust cooling fan 9 respectively.

[0033] Two air inlet holes 14 are formed on the right side of the battery box 1. The positions of the air inlet holes 14 correspond to the limiting strip 10, and the air inlet holes 14 connect the limiting strip 10 with the inside of the side shell 4. The air inlet end of the endothermic fan 8 corresponds to the position of the air inlet hole 14, and the air outlet end of the exhaust cooling fan 9 corresponds to the position of the exhaust hole 15.

[0034] A controller is fixedly arranged on the surface of the side shell 4. The controller is electrically connected to the semiconductor refrigeration sheet 5, the endothermic fan 8 and the exhaust cooling fan 9 respectively, and a storage battery is arranged inside the controller, and the storage battery can supply power to the above electronic devices.

[0035] Two limiting stop bars 10 are fixedly connected between the left and right inner walls of the battery box 1. The limiting stop bars 10 are shell structures with hollow interiors, and a number of heat absorption holes 11 are formed on the lower surface of the limiting stop bars 10. Two strip-shaped air outlet shells 12 are fixedly connected to the inner bottom wall of the battery box 1. The positions of the strip-shaped air outlet shells 12 correspond to those of the limiting stop bars 10, and a number of air outlet holes 13 are formed on the upper surface of the strip-shaped air outlet shells 12. Two exhaust holes 15 are formed on the right side of the battery box 1. The positions of the exhaust holes 15 correspond to those of the strip-shaped air outlet shells 12, and the exhaust holes 15 communicate the strip-shaped air outlet shells 12 with the interior of the side shell 4.

[0036] It should be noted that by providing a heat dissipation component inside the battery box 1, first, the intake fan 8 sucks air through the intake holes 14, so that the heat inside the battery box 1 is sucked into the side shell 4 through a number of heat absorption holes 11 on the lower surface of the limiting stop bars 10. Then, the semiconductor refrigeration sheet 5 cools the interior of the side shell 4. Then, the cold air discharge fan 9 conveys air to the exhaust holes 15, so that the cooled air is re-introduced into the battery box 1 through the air outlet holes 13 on the surface of the strip-shaped air outlet shells 12 at the bottom of the battery box 1. Thus, on the premise of maintaining the sealing of the battery box 1, the heat dissipation and cooling effects inside the battery box 1 are ensured.

[0037] Finally, it should be noted that in the drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A battery shell cover with good sealing performance, comprising a battery box (1) and a top cover (2), characterized in that: The left side of the top cover (2) is rotatably connected to the surface of the battery box (1) via a hinge, the lower surface of the top cover (2) is fixedly connected to a rubber sealing strip (3), the right side of the battery box (1) is fixedly connected to a side shell (4), and a heat dissipation component and a limiter component are respectively arranged inside the side shell (4), the heat dissipation component is used to perform internal circulation cooling on the battery box (1), and the limiter component is used to limit the top cover (2); The heat dissipation component comprises a semiconductor cooling plate (5) fixedly embedded in the inner wall of the side shell (4); the inner wall of the side shell (4) is fixedly connected with a first mounting baffle (6) and a second mounting baffle (7); the semiconductor cooling plate (5) is arranged between the first mounting baffle (6) and the second mounting baffle (7); the upper surface of the first mounting baffle (6) is fixedly connected with a heat absorbing fan (8); the upper surface of the second mounting baffle (7) is fixedly connected with a cooling exhaust fan (9); Two limit stop bars (10) are fixedly connected between the left and right inner walls of the battery box (1); the limit stop bar (10) is a shell structure with a hollow interior, and a plurality of heat absorption holes (11) are provided on the lower surface of the limit stop bar (10); two strip-shaped air outlet shells (12) are fixedly connected to the inner bottom wall of the battery box (1); the position of the strip-shaped air outlet shells (12) corresponds to the limit stop bar (10), and a plurality of air outlet holes (13) are provided on the upper surface of the strip-shaped air outlet shells (12).

2. A battery shell cover with good sealing performance according to claim 1, characterized in that: Two air inlet holes (14) are provided on the right side of the battery box (1), the positions of the air inlet holes (14) correspond to the limit stop bar (10), and the air inlet holes (14) connect the limit stop bar (10) with the interior of the side shell (4).

3. A battery shell cover with good sealing performance according to claim 2, characterized in that: Two exhaust holes (15) are provided on the right side of the battery box (1), the positions of the exhaust holes (15) correspond to the strip-shaped air outlet shell (12), and the exhaust holes (15) connect the strip-shaped air outlet shell (12) with the interior of the side shell (4).

4. A battery shell cover with good sealing performance according to claim 3, characterized in that: Ventilation holes (16) are provided on the surfaces of the first mounting baffle (6) and the second mounting baffle (7), and the positions of the two ventilation holes (16) correspond to the heat absorption fan (8) and the cooling fan (9) respectively.

5. A battery shell cover with good sealing performance according to claim 4, characterized in that: The air inlet end of the heat absorption fan (8) corresponds to the position of the air inlet hole (14), and the air outlet end of the cooling fan (9) corresponds to the position of the exhaust hole (15).

6. A battery shell cover with good sealing performance according to claim 5, characterized in that: A heat dissipation port is provided on the surface of the side shell (4), a heat dissipation fan (17) is fixedly embedded in the inner wall of the heat dissipation port, and the position of the heat dissipation fan (17) corresponds to the heat dissipation end of the semiconductor cooling plate (5).

7. A battery shell cover with good sealing performance according to claim 6, characterized in that: The limit assembly comprises two operating knobs (18) rotatably connected to the side surfaces of the side shell (4); a movable screw (19) is fixedly connected to the surface of the operating knob (18); the end of the movable screw (19) extends into the interior of the side shell (4); and the surface of the movable screw (19) is threadedly connected to a limit block (20); and two L-shaped positioning blocks (21) are fixedly connected to the right side of the top cover (2).

8. A battery shell cover with good sealing performance according to claim 7, characterized in that: A limiting plug hole (22) is provided on the surface of the positioning block (21), the position of the limiting plug hole (22) corresponds to the limiting block (20), and the limiting plug hole (22) matches the limiting block (20); a rectangular placement hole (23) is provided on the upper surface of the side shell (4), and the position of the rectangular placement hole (23) corresponds to the positioning block (21).

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