A box body expandable automobile starting battery
By designing an expandable car starter battery with a left and right sliding cover structure, combined with guide seats and guide pins, the problems of battery heat accumulation and inconvenient maintenance are solved, enabling quick and convenient maintenance and efficient heat dissipation, thus extending battery life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU XINZHISHENG TECHNOLOGY CO LTD
- Filing Date
- 2025-04-03
- Publication Date
- 2026-05-26
AI Technical Summary
In existing technologies, the accumulation of heat in power batteries under natural air cooling or water cooling conditions leads to uneven temperature, which affects battery expansion, reduces charging and discharging efficiency and service life, and makes maintenance inconvenient.
Design a car starter battery with an expandable box body, using a left and right sliding cover structure, combined with guide seats and guide pins, to achieve rapid expansion by reducing the number of fixing bolts, facilitating battery body maintenance, and equipped with a heat dissipation device to improve heat dissipation efficiency.
It enables quick and convenient maintenance of the battery body, reduces the number of bolts required for maintenance, improves heat dissipation efficiency, extends battery life, and enhances safety.
Smart Images

Figure CN224288400U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts technology, specifically to an automotive starter battery with an expandable box. Background Technology
[0002] In existing technologies, when power batteries are cooled by natural wind or water, the large amount of heat generated by the battery during operation accumulates due to the influence of space. At this time, natural wind cooling or water cooling cannot achieve a good cooling effect, resulting in uneven temperature in various parts of the battery box. This can easily cause the battery to expand and damage it. It will also reduce the battery's charge and discharge cycle efficiency, affect the battery's power, reduce the battery's lifespan, and in severe cases, lead to thermal runaway, affecting the safety and reliability of the new energy vehicle system.
[0003] A search revealed that prior art CN214176117U discloses a heat dissipation battery box for new energy vehicles, relating to the field of new energy vehicle technology. It includes a battery box body, a base, a battery box shell, and an air supply mechanism. The base is shaped like a frustum of four prisms. The battery box body is disposed on the top surface of the base. Several air supply holes are provided on the top and sides of the base. The base is hollow inside. The battery box shell covers the base and forms a first cavity with the outer surface of the base. The bottom surface of the battery box shell and the interior of the base form a second cavity. The air supply mechanism is disposed within the second cavity. This invention enables comprehensive and uniform heat dissipation of the battery box body, avoiding battery expansion and damage caused by uneven heat dissipation. It effectively ensures the safety of the battery box body, extends its service life, and improves the safety and reliability of new energy vehicles. Furthermore, the all-around enveloping heat dissipation significantly increases the contact area between the battery box body and the cool air, improving the heat dissipation efficiency of the battery box body.
[0004] However, when performing internal maintenance on the aforementioned battery box in actual use, it is necessary to disassemble multiple fixing bolts of the battery box shell and the battery box body separately, which is not conducive to quick and convenient maintenance. Utility Model Content
[0005] The purpose of this invention is to provide a car starter battery with an expandable housing, which allows the main body of the housing to be quickly expanded, facilitating quick and convenient maintenance of the battery.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a car starter battery with an expandable box body, including a box body and a battery body. The battery body is disposed at the inner bottom of the box body. The box body includes a base plate, a left sliding cover, a right sliding cover, a guide seat, a guide pin, a fixing plate, and a heat dissipation device. The battery body is mounted on the base plate. The left sliding cover is disposed on the left side of the base plate, and the right sliding cover is disposed on the right side of the base plate. The guide seat is fixedly connected to the base plate and is symmetrically arranged on the left and right sides, with a quantity of four. The guide pin is threadedly connected to the left sliding cover and the right sliding cover respectively, and can slide linearly in the guide groove of the guide seat. The fixing plate is detachably connected to the left sliding cover, the right sliding cover, and the base plate respectively. The heat dissipation device is disposed on the top of the left sliding cover and the right sliding cover.
[0007] The surface of the guide groove of the guide seat and the surface of the guide pin are respectively provided with a wear-resistant coating, which is a metal-ceramic coating.
[0008] The left and right sliding covers are respectively provided with symmetrical T-shaped protrusions that cooperate with the symmetrical T-shaped sliding grooves on the base plate.
[0009] The heat dissipation device includes a filter screen and an air supply assembly. The filter screen is respectively disposed on the left sliding cover and the right sliding cover, and is symmetrically disposed thereon. The air supply assembly is respectively disposed on the top of the left sliding cover and the right sliding cover.
[0010] The air supply assembly includes a fan and a ventilation screen. The fan is fixedly connected to the left sliding cover and the right sliding cover respectively, and is located outside the air inlet on the top of the left sliding cover and the right sliding cover respectively. The ventilation screen is fixed to the top of the fan housing.
[0011] The box body is provided with guide mechanisms on both sides. The guide mechanism includes a connecting seat and a guide rod frame. The connecting seat is detachably connected to the left sliding cover and the right sliding cover respectively, and is symmetrically arranged. The guide rod frame is detachably connected to the base plate, and its circular guide rod is slidably engaged with the connecting seat.
[0012] This utility model discloses a car starter battery with an unfoldable box. During maintenance, four bolts fixed to the base plate on two fixing plates are removed. Then, the left and right sliding covers are pulled directly. When pulled, the left and right sliding covers maintain their positions without deviation while moving linearly through guide seats and guide pins, thereby enabling the main body of the box to be quickly slid open, exposing the battery body for subsequent maintenance. Compared with the prior art, the number of bolts removed during maintenance is greatly reduced, thus facilitating convenient and rapid maintenance. This allows for the rapid unfolding of the main body of the box, which is beneficial for quick and convenient maintenance of the battery body. Attached Figure Description
[0013] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.
[0014] Figure 1 This is a schematic diagram of the overall structure of the unfoldable car starter battery according to the first embodiment of this utility model.
[0015] Figure 2 This is a schematic diagram of the guide seat according to the first embodiment of the present invention.
[0016] Figure 3 This is a schematic diagram of the overall structure of the expandable car starter battery according to the second embodiment of this utility model.
[0017] In the diagram: 100-Box body, 300-Battery body, 101-Base plate, 102-Left sliding cover, 103-Right sliding cover, 104-Guide seat, 105-Guide pin, 106-Fixing plate, 107-Filter screen, 108-Fan, 109-Ventilation screen, 201-Connecting seat, 202-Guide rod frame. Detailed Implementation
[0018] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0019] Example 1:
[0020] like Figure 1 and Figure 2 As shown, where Figure 1 This is a schematic diagram of the overall structure of a car starter battery with an unfoldable casing. Figure 2 This is a structural schematic diagram of the guide seat 104. This utility model provides a car starter battery with an expandable housing: it includes a housing body 100 and a battery body 300. The housing body 100 includes a base plate 101, a left sliding cover 102, a right sliding cover 103, a guide seat 104, a guide pin 105, a fixing plate 106, and a heat dissipation device. The heat dissipation device includes a filter screen 107 and an air supply assembly, which includes a fan 108 and a ventilation screen 109. This design allows the housing body 100 to be quickly expanded, facilitating quick and convenient maintenance of the battery body 300. It is understood that this design enables quick and convenient maintenance of the battery body 300.
[0021] In this embodiment, the battery body 300 is disposed at the inner bottom of the housing body 100. The corresponding working cable of the battery body 300 passes through the cable hole formed by the cooperation of the top of the left sliding cover 102 and the right sliding cover 103.
[0022] Among them, the battery main body 300 is installed on the bottom plate 101. The left sliding cover 102 is arranged on the left side of the bottom plate 101, and the right sliding cover 103 is arranged on the right side of the bottom plate 101. The guiding seats 104 are fixedly connected to the bottom plate 101, are symmetrically arranged left and right, and the number is four. The guiding pins 105 are respectively threadedly connected to the left sliding cover 102 and the right sliding cover 103, and can linearly slide in the guiding chutes of the guiding seats 104. The fixing plates 106 are respectively detachably connected to the left sliding cover 102, the right sliding cover 103 and the bottom plate 101. The heat dissipation device is arranged on the tops of the left sliding cover 102 and the right sliding cover 103; the guiding seats 104 are fixed by bolts. The guiding chutes are arranged on the guiding seats 104 to cooperate with the guiding pins 105. The guiding pins 105 are in a Chinese character shape in the middle, and the outer threaded ends on the front side are directly connected and installed to the left sliding cover 102 or the right sliding cover 103. Multiple roller brackets are respectively installed at the bottoms of the inner side walls of the left sliding cover 102 or the right sliding cover 103 at intervals in a line. The rollers at the bottoms of the roller brackets can roll on the bottom plate 101. This structure is beneficial for sliding support when the left sliding cover 102 or the right sliding cover 103 is pulled. The upper end parts of the fixing plates 106 are respectively fixed to the left sliding cover 102 or the right sliding cover 103 by bolts arranged from the inside to the outside through the left sliding cover 102 or the right sliding cover 103, and finally their bottoms can be fixed to the bottom plate 101 by bolts respectively. This structure can reduce the number of fixing bolts compared with the prior art. The heat dissipation device is used for dissipating heat during the operation of the battery main body 300.
[0023] Wear-resistant coatings are respectively arranged on the surfaces of the guiding chutes of the guiding seats 104 and the surfaces of the guiding pins 105. The wear-resistant coating is a metal ceramic coating. The metal ceramic coating is arranged on the surfaces of the guiding chutes of the guiding seats 104 and the surfaces of the guiding pins 105 by thermal spraying, which is beneficial for improving the service life of the sliding fit on both sides.
[0024] Secondly, T-shaped protrusions are symmetrically arranged on the left sliding cover 102 and the right sliding cover 103 respectively to cooperate with the T-shaped chutes symmetrically arranged on the bottom plate 101. This structure is beneficial for further increasing the guiding structure and improving the stability and linearity when the left sliding cover 102 and the right sliding cover 103 move.
[0025] Then, the filter screens 107 are respectively disposed on the left sliding cover 102 and the right sliding cover 103, and are arranged symmetrically; the air supply assembly is respectively disposed on the top of the left sliding cover 102 and the right sliding cover 103. The filter screens 107 are respectively disposed in the air outlets on both sides of the left sliding cover 102 and the right sliding cover 103, and are also disposed at the bottom of the air inlets of the left sliding cover 102 and the right sliding cover 103, that is, they are also disposed below the fan 108, thereby reducing the entry of external dust into the interior. When the air supply assembly is used for heat dissipation, it supplies cooling air into the interior of the housing body 100.
[0026] Finally, the fan 108 is fixedly connected to the left sliding cover 102 and the right sliding cover 103 respectively, and is located outside the air inlet on the top of the left sliding cover 102 and the right sliding cover 103 respectively; the ventilation screen 109 is fixed to the top of the housing of the fan 108. The fan 108 is fixed with bolts, and the ventilation screen 109 is fixed to the housing of the fan 108 with bolts, which is used to isolate and protect the fan blades when the micro motor inside the fan 108 drives them to rotate, thereby improving safety.
[0027] When using this utility model to achieve rapid unfolding of the main body 100 of the box, which is beneficial for quick and convenient maintenance of the battery body 300, during maintenance, four bolts fixed to the base plate 101 on the two fixing plates 106 are removed. Then, the left sliding cover 102 and the right sliding cover 103 are pulled directly. When pulled, the left sliding cover 102 and the right sliding cover 103 maintain their positions without deviation during linear movement through the guide seat 104 and the guide pin 105, respectively. At the same time, the stability during movement is further ensured by the structure of multiple roller frames and T-shaped blocks and T-shaped sliding grooves. Thus, the main body 100 of the box can be quickly slid open, and the battery body 300 can be exposed for subsequent maintenance. The number of bolts removed during maintenance in this application is greatly reduced compared with the prior art, which facilitates convenient and rapid maintenance, thereby enabling rapid unfolding of the main body 100 of the box and facilitating quick and convenient maintenance of the battery body 300.
[0028] Example 2:
[0029] like Figure 3 As shown, where Figure 3 This is a schematic diagram of the overall structure of a car starter battery with an expandable box. Based on the first embodiment, this utility model provides a car starter battery with an expandable box. The main body 100 of the box is also provided with guide mechanisms on both sides. The guide mechanisms include a connecting seat 201 and a guide rod frame 202.
[0030] The connecting seat 201 is detachably connected to the left sliding cover 102 and the right sliding cover 103, and is symmetrically arranged. The guide rod frame 202 is detachably connected to the base plate 101, and its circular guide rod slides in cooperation with the connecting seat 201. The connecting seat 201 is fixed by bolts and has a through circular hole. The guide rod frame 202 consists of an L-shaped support and a circular guide rod. The L-shaped support is fixed to the base plate 101 by bolts and has a spline cavity. After the circular guide rod passes through the through hole in the connecting seat 201, the stepped spline ends on both sides of the guide rod cooperate with the spline cavity on the L-shaped support. Finally, the L-shaped support is fixed by bolts to limit the circular guide rod and prevent rotation.
[0031] In this embodiment, by providing the connecting seat 201 and the guide rod bracket 202, the stability of the left sliding cover 102 and the right sliding cover 103 during movement will be further improved.
[0032] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A car starter battery with an expandable housing, comprising a housing body and a battery body, wherein the battery body is disposed at the inner bottom of the housing body, characterized in that: The main body of the box includes a base plate, a left sliding cover, a right sliding cover, a guide seat, a guide pin, a fixing plate, and a heat dissipation device. The battery body is mounted on the base plate. The left sliding cover is located on the left side of the base plate, and the right sliding cover is located on the right side of the base plate. The guide seats are fixedly connected to the base plate and are symmetrically arranged on both sides, with a total of four. The guide pins are threadedly connected to the left and right sliding covers respectively and can slide linearly in the guide grooves of the guide seats. The fixing plate is detachably connected to the left sliding cover, the right sliding cover, and the base plate respectively. The heat dissipation device is located on the top of the left and right sliding covers. The surface of the guide groove of the guide seat and the surface of the guide pin are respectively provided with a wear-resistant coating, which is a metal-ceramic coating.
2. The car starter battery with an expandable housing as described in claim 1, characterized in that: The left and right sliding covers are respectively provided with symmetrical T-shaped protrusions that cooperate with the symmetrical T-shaped sliding grooves on the base plate.
3. The car starter battery with an expandable housing as described in claim 1, characterized in that: The heat dissipation device includes a filter screen and an air supply assembly. The filter screen is respectively disposed on the left sliding cover and the right sliding cover, and is arranged symmetrically. The air supply assembly is respectively disposed on the top of the left sliding cover and the right sliding cover.
4. The car starter battery with an expandable housing as described in claim 3, characterized in that: The air supply assembly includes a fan and a ventilation screen. The fan is fixedly connected to the left sliding cover and the right sliding cover respectively, and is located outside the air inlet on the top of the left sliding cover and the right sliding cover respectively. The ventilation screen is fixed to the top of the fan housing.
5. The car starter battery with an expandable housing as described in claim 1, characterized in that: The main body of the box is also provided with guide mechanisms on both sides. The guide mechanisms include connecting seats and guide rod frames. The connecting seats are detachably connected to the left sliding cover and the right sliding cover respectively, and are arranged symmetrically. The guide rod frames are detachably connected to the base plate, and their circular guide rods are slidably engaged with the connecting seats.