Low-speed vehicle battery mounting and fixing structure

Abstract

The utility model relates to the technical field of automobile batteries, in particular to a low-speed automobile battery mounting and fixing structure which comprises a box body, a battery body and a heat dissipation mechanism, and the heat dissipation mechanism comprises a fixed seat, a pressure-resistant copper pipe, a liquid inlet seat, a liquid outlet seat, a side filter screen, a clamping seat, a fan device and a limiting device. When the battery body works, cooling liquid can be conveyed into the pressure-resistant copper pipe through the liquid inlet seat, and the temperature of the cooling liquid is relatively low, so that the pressure-resistant copper pipe can be in a low-temperature state, and heat exchange between the cooling liquid and hot air in the box body can be realized when the cooling liquid circulates, so that the temperature in the box body is reduced by carrying part of heat; the cooling liquid after heat exchange flows back to the refrigeration equipment through the liquid outlet seat, and finally, blowing cooling cooperation can be carried out through the fan device, so that heat in the box body can be further quickly dissipated, and the problem that heat generated in the working and using process of an existing battery box body after a battery is installed is difficult to dissipate can be solved.

Description

Technical Field

[0001] This utility model relates to the field of automotive battery technology, and in particular to a low-speed vehicle battery mounting and fixing structure. Background Technology

[0002] Currently, most power battery cubic enclosures on the market employ relatively complex frame structures. While this structure offers good protection for the battery, the excessive number of structural components increases both the cost of the battery enclosure and the overall weight of the vehicle. As the battery pack casing, the battery cubic enclosure must reduce costs, lighten the overall vehicle weight, and provide secure protection and fixation; therefore, a highly secure and protective design is particularly important.

[0003] A search revealed that prior art CN208507792U discloses a low-speed electric vehicle power battery box structure, including a cubic box and a battery module. Two elongated mounting seats are symmetrically arranged on the bottom plate of the cubic box. Wire-tying brackets are provided on all four inner side walls of the cubic box, positioned at the same height within the box. Multiple fixing brackets are provided on the outer side of the cubic box, which is then mounted on the electric vehicle body. An outer edge is provided at the top of the cubic box, with multiple threaded holes. A sealing layer is provided between the box cover and the cubic box, located on the outer edge. This invention, by symmetrically arranging two elongated mounting seats on the bottom plate of the cubic box, not only secures the battery module but also provides shock absorption, while reducing the number of internal structural components, thus effectively optimizing the internal space and reducing the weight of the battery box.

[0004] However, the above-mentioned battery box structure has the following problems in actual use: In order to protect the battery pack, most of the boxes need to be sealed. Although the above-mentioned battery box structure can ensure the safety of the battery pack after sealing, the heat generated by the battery during operation is not easy to dissipate. Utility Model Content

[0005] The purpose of this utility model is to provide a low-speed vehicle battery mounting and fixing structure, which aims to solve the problem that the heat generated by the existing battery box during operation after battery installation is not easily dissipated.

[0006] To achieve the above objectives, this utility model provides a low-speed vehicle battery mounting and fixing structure, including a housing, a battery body being disposed inside the housing, and a heat dissipation mechanism.

[0007] The heat dissipation mechanism includes a fixed base, a pressure-resistant copper pipe, an inlet seat, an outlet seat, a side filter, a mounting bracket, a fan device, and a limiting device. The fixed base is detachably connected to the housing and is located at the bottom of the housing, outside the battery body. The pressure-resistant copper pipe is spirally sleeved on the outside of the fixed base and spot-welded to it. The inlet seat is detachably connected to the inlet side of the pressure-resistant copper pipe and the housing, and is connected to the coolant delivery pipe. The outlet seat is detachably connected to the outlet side of the pressure-resistant copper pipe and the housing, and is connected to the coolant return pipe. The side filter is located on both sides of the housing. The mounting bracket is detachably connected to the top cover of the housing and is located on the side of the vertical ventilation opening of the cover. The fan device is located on one side of the mounting bracket, and the limiting device is located on the side of the mounting bracket near the fan device.

[0008] The fan device includes a cooling fan and a matching filter screen. The cooling fan is detachably connected to the card holder and is located on the upper side of the ventilation opening of the cover plate. The matching filter screen is installed on the top of the housing of the cooling fan.

[0009] The limiting device includes a limiting plate and an abutting post. The limiting plate is detachably connected to the card seat and is located on the side of the card seat closer to the cooling fan. One side of the abutting post is integrally formed with the limiting plate, and the other side can abut against the housing of the cooling fan.

[0010] The side wall of the housing is provided with aviation plugs that are electrically connected to the battery body and the external working module, respectively.

[0011] The low-speed vehicle battery mounting and fixing structure also includes a protection mechanism, which includes a ventilation plate and a limiting pin. The ventilation plate is slidably connected to the card holder and is located on top of the mating filter screen. The limiting pin is slidably connected to the ventilation plate and threadedly connected to the card holder, and they are symmetrically arranged.

[0012] This utility model discloses a low-speed vehicle battery mounting and fixing structure. When the battery body is working, it is located in a protective cavity formed by the box and the cover plate to ensure safety. Furthermore, when the battery body is working, coolant can be delivered into the pressure-resistant copper pipe through the inlet seat. Because the coolant temperature is low, the pressure-resistant copper pipe can be kept at a low temperature, which allows the coolant to exchange heat with the hot air inside the box during circulation, thereby carrying away some heat and reducing the internal temperature of the box. The coolant after heat exchange flows back to the refrigeration equipment through the outlet seat. Finally, it can be cooled by blowing with a fan device, so that the heat inside the box can be dissipated quickly. This solves the problem that the heat generated by the existing battery box is not easily dissipated during the operation of the battery after installation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the low-speed vehicle battery mounting and fixing structure according to the first embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the pressure-resistant copper tube according to the first embodiment of this utility model.

[0016] Figure 3 This is a schematic diagram of the overall structure of the low-speed vehicle battery mounting and fixing structure according to the second embodiment of this utility model.

[0017] In the diagram: 101-box body, 102-battery body, 103-fixed base, 104-pressure resistant copper tube, 105-liquid inlet, 106-liquid outlet, 107-side filter, 108-card slot, 109-cover plate, 110-cooling fan, 111-matching filter, 112-limiting plate, 113-abutting post, 114-aviation plug, 201-ventilation plate, 202-limiting pin. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[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 the battery mounting and fixing structure for low-speed vehicles. Figure 2 This is a schematic diagram of the pressure-resistant copper pipe 104. This utility model provides a low-speed vehicle battery mounting and fixing structure: it includes a housing 101, a battery body 102, and a heat dissipation mechanism. The heat dissipation mechanism includes a fixing seat 103, a pressure-resistant copper pipe 104, an inlet seat 105, an outlet seat 106, a side filter 107, a mounting bracket 108, a fan device, and a limiting device. The fan device includes a cooling fan 110 and a matching filter 111. The limiting device includes a limiting plate 112 and an abutment post 113. This solution solves the problem of heat dissipation being difficult to achieve in existing battery housings during battery installation and operation. It is understood that this solution facilitates heat dissipation for the battery body 102 during operation.

[0021] In this embodiment, a battery body 102 is disposed inside the housing 101.

[0022] The fixing seat 103 is detachably connected to the housing 101 and is located at the bottom of the housing 101, outside the battery body 102. The pressure-resistant copper tube 104 is spirally sleeved on the outside of the fixing seat 103 and then spot-welded to the fixing seat 103. The liquid inlet seat 105 is detachably connected to the inlet side of the pressure-resistant copper tube 104 and the housing 101, and is connected to the coolant delivery pipe. The liquid outlet seat 106 is detachably connected to the outlet side of the pressure-resistant copper tube 104 and the housing 101, and is connected to the coolant return pipe. The side filter screen 107 is located on both sides of the housing 101. The card holder 108 is detachably connected to the top cover plate 109 of the housing 101 and is located on the side of the vertical ventilation opening of the cover plate 109. The fan device is located on one side of the card holder 108. The limiting device is located on the side of the card holder 108 near the fan device. The fixing base 103 is fixed by bolts and has multiple air circulation chambers arranged in a circular array. These air circulation chambers can also be used for cable sheathing. The pressure-resistant copper tube 104 is spirally sleeved on the outside of the fixing base 103 and then directly spot-welded to it. The spiral structure facilitates longer coolant flow time and better heat exchange. T-shaped connecting pipes with flanges are welded to the inlet and outlet sides of the pressure-resistant copper tube 104, respectively. The outlet flange of the liquid inlet seat 105 is connected to the flange of the inlet connecting pipe of the pressure-resistant copper tube 104 via screws and nuts. The inlet flange of the liquid inlet seat 105 is connected to the flange on the coolant delivery pipeline via screws and nuts. The fixing flange of the liquid inlet seat 105 is fixed to the housing 101 by bolts. The inlet flange of the liquid outlet seat 106 is connected to the flange of the outlet connecting pipe of the pressure-resistant copper tube 104 via screws and nuts. The outlet flange of the liquid outlet seat 106 is connected to the flange on the coolant return pipe via bolts and nuts. The fixed flange of the liquid outlet seat 106 is fixed to the housing 101 with bolts. The coolant returns to the refrigeration equipment for cooling. After cooling, it is pumped out again by the extraction pump and transported to the coolant insulation tank for storage. Finally, it is pumped out again by the extraction pump to achieve recycling. The refrigeration equipment can adopt the existing refrigeration device, such as the refrigeration device disclosed in the prior art CN218803823U. The side filter screen 107 is installed in the ventilation port of the housing 101 for ventilation and to reduce the entry of external impurities into the housing 101. The card seat 108 is fixed to the cover plate 109 by bolts arranged from bottom to top. The cover plate 109 is fixed by bolts. The fan device is used to assist in heat dissipation. The limiting device is used for the installation and cooperation of the fan device.

[0023] Secondly, the cooling fan 110 is detachably connected to the card holder 108 and is located above the ventilation opening of the cover plate 109; the matching filter 111 is installed on the top of the housing of the cooling fan 110. The housing of the cooling fan 110 can be directly slidably installed in the non-penetrating slot of the card holder 108, and the matching filter 111 is fixed to the top of the housing of the cooling fan 110 by bolts. The cooling fan 110 adopts a fan with a rectangular housing structure, and a drive motor and fan blade structure are installed inside.

[0024] Then, the limiting plate 112 is detachably connected to the card holder 108 and is located on the side of the card holder 108 near the cooling fan 110; one side of the abutment post 113 is integrally formed with the limiting plate 112, and the other side can abut against the housing of the cooling fan 110. The two ends of the limiting plate 112 are respectively fixed by bolts, one end of the abutment post 113 is directly integrally formed with the limiting plate 112, and the other end can abut against the housing of the cooling fan 110 for limiting after the limiting plate 112 is fixed.

[0025] Finally, the side wall of the housing 101 is provided with aviation plugs 114 that are electrically connected to the battery body 102 and the external working module, respectively. The aviation plugs 114 are two-sided connections and are fixed to the housing 101 with bolts. They are used for the transition connection between the battery body 102 and the external working module. At the same time, compared with the structure of directly opening holes for cable threading, this structure can better prevent impurities from entering the interior.

[0026] When using this utility model to solve the problem of heat dissipation being difficult in existing battery cases after battery installation and operation, firstly, the battery body 102 is within the protective cavity formed by the housing 101 and the cover plate 109 during operation to ensure safety. Furthermore, during operation, coolant can be supplied to the pressure-resistant copper pipe 104 through the inlet seat 105. Because the coolant temperature is low, the pressure-resistant copper pipe 104 remains at a low temperature, allowing the coolant to exchange heat with the hot air inside the housing 101 during circulation, thus carrying away some heat and reducing its intensity. The internal temperature of the housing 101 is adjusted. After heat exchange, the coolant flows back to the refrigeration equipment through the outlet seat 106 for further processing and then is drawn back for circulation. Finally, the cooling fan 110 is controlled to draw in external cold air and blow it vertically onto the surface of the battery body 102 to cool it down. Hot air can be dissipated from the side filters 107 installed at the four ventilation openings on the housing 101, so that the heat inside the housing 101 can be dissipated more quickly. This solves the problem that the heat generated during the operation of the battery housing is not easily dissipated after the battery is installed.

[0027] Example 2:

[0028] like Figure 3 As shown, where Figure 3 This is a schematic diagram of the overall structure of the low-speed vehicle battery mounting and fixing structure. Based on the first embodiment, this utility model provides a low-speed vehicle battery mounting and fixing structure, which also includes a protection mechanism, including a ventilation plate 201 and a limiting pin 202.

[0029] The ventilation plate 201 is slidably connected to the mounting base 108 and located on top of the mating filter screen 111. The limiting pin 202 is slidably connected to the ventilation plate 201 and threadedly connected to the mounting base 108, and is symmetrically arranged. The mounting base 108 has a non-penetrating rectangular groove to facilitate the sliding installation of the ventilation plate 201. Symmetrical round holes are provided on one end of the ventilation plate 201 to facilitate the T-shaped limiting pin 202 to pass through and threadedly connect with the mounting base 108.

[0030] In this embodiment, after the ventilation plate 201 is installed, it can achieve ventilation through its own ventilation slot, and at the same time, it can protect the filter screen 111 in the vertical direction.

[0031] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A low-speed vehicle battery mounting and fixing structure, comprising a box body, wherein the box body is internally provided with a battery body, and characterized in that: a heat dissipation mechanism is further included; the heat dissipation mechanism comprises a fixing seat, a pressure-resistant copper pipe, an inlet seat, an outlet seat, a side filter screen, a clamping seat, a fan device and a limiting device, the fixing seat is detachably connected with the box body and arranged at the inner bottom of the box body and located outside the battery body, the pressure-resistant copper pipe is spirally sleeved outside the fixing seat and point-welded with the fixing seat, the inlet seat is detachably connected with the inlet side of the pressure-resistant copper pipe and the box body and connected with a cooling liquid conveying pipeline, the outlet seat is detachably connected with the outlet side of the pressure-resistant copper pipe and the box body and connected with a cooling liquid return pipeline, the side filter screen is arranged at both sides of the box body, the clamping seat is detachably connected with the top cover plate of the box body and located at one side of the vertical air vent of the cover plate, the fan device is arranged at one side of the clamping seat, and the limiting device is arranged at one side of the clamping seat close to the fan device.

2. The low-speed vehicle battery mounting and fixing structure according to claim 1, characterized in that: the fan device comprises a heat dissipation fan and a matching filter screen, the heat dissipation fan is detachably connected with the clamping seat and located at the upper side of the air vent of the cover plate, and the matching filter screen is installed at the top of the housing of the heat dissipation fan.

3. The low-speed vehicle battery mounting and fixing structure according to claim 2, characterized in that: the limiting device comprises a limiting plate and an abutting column, the limiting plate is detachably connected with the clamping seat and located at one side of the clamping seat close to the heat dissipation fan, and one side of the abutting column is integrally formed with the limiting plate and the other side is abuttable on the housing of the heat dissipation fan.

4. The low-speed vehicle battery mounting and fixing structure according to claim 1, characterized in that: an aviation plug electrically connected with the battery body and an external working module is arranged on the side wall of the box body. The low-speed vehicle battery mounting and fixing structure further comprises a protection mechanism, the protection mechanism comprises a ventilation plate and a limiting pin, the ventilation plate is slidably connected with the clamping seat and located at the top of the matching filter screen, and the limiting pin is slidably connected with the ventilation plate and threadedly connected with the clamping seat and symmetrically arranged. ​ ​ ​ ​ 5. The low-speed vehicle battery mounting and fixing structure according to claim 2, characterized in that : ​

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