Heat dissipation structure of vehicle lithium battery

Abstract

The utility model relates to the technical field of lithium batteries, discloses a heat dissipation structure of a vehicle lithium battery, and solves the problem that the heat loss of the conventional heat dissipation structure of the vehicle lithium battery is too fast under the condition that the air temperature is relatively low. The temperature of the battery main body can be conveniently controlled through the ventilation assembly, when the battery is used under the condition that the air temperature is low, the turnover plate fills the interior of the movable groove, air does not circulate in the shell at the moment, heat of the battery main body can be stored, the endurance of the battery main body can be prolonged, and the battery can be conveniently stored under the condition that the temperature is high. The motor is started to drive the threaded rod to rotate, the threaded rod rotates in the screw hole to push the telescopic rod, the telescopic rod pushes the toothed rod, the toothed rod drives the screw hole to turn over, and the screw hole drives the turning plate to turn over so that air can enter the movable groove.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a heat dissipation structure of a lithium battery for a vehicle. Background Art

[0002] Lithium batteries are a type of battery with high energy density. Therefore, lithium batteries have high energy storage efficiency and are widely used. Lithium batteries are used in cars, but lithium batteries generate a lot of heat when in use, which will affect the stability of lithium batteries.

[0003] Chinese patent publication number CN218414771U discloses a heat dissipation structure for automotive lithium batteries, which aims to solve the technical problems of uneven heat dissipation of lithium batteries under the existing technology, which easily leads to local high temperature and cannot effectively perform uniform heat dissipation treatment on lithium batteries. The heat dissipation structure includes a mounting box; a ventilation groove is provided at the inner bottom end of the mounting box, an air intake assembly is fixedly installed on the outer side of the mounting box, an air distribution assembly is arranged on the inner side of the mounting box, and the air distribution assembly is arranged in multiple groups, and a positioning seat is arranged on the inner side of the mounting box, and a lithium battery body is arranged on the inner side of the positioning seat. The heat dissipation structure of the automotive lithium battery only needs to drive the cold air into the ventilation groove through the air intake assembly, and the cold air is distributed in the air distribution assembly through the ventilation groove, and the lithium battery body is uniformly dissipated through the air distribution assembly, and the hot air is discharged along with the heat dissipation assembly, thereby achieving uniform heat dissipation treatment of the lithium battery.

[0004] The above technical solution has the following defects: the lithium battery will dissipate heat during use, but the battery life will be reduced when the temperature is low. Therefore, the heat dissipation structure will cause the heat of the battery to be lost too quickly, which will affect the performance of the lithium battery when the temperature is low. Utility Model Content

[0005] The utility model aims to provide a heat dissipation structure for a lithium battery for a vehicle. The device is used to work, thereby solving the problem of excessively fast heat loss in the heat dissipation structure of the lithium battery for a vehicle under low temperature.

[0006] To achieve the above object, the utility model provides the following technical solution: a heat dissipation structure of a lithium battery for a vehicle, comprising a housing, a heat dissipation fan installed at one end inside the housing, and a battery body arranged inside the housing, wherein a dustproof component is arranged at one end of the housing close to the heat dissipation fan, and a ventilation component is arranged at one end of the housing away from the heat dissipation fan;

[0007] The ventilation assembly includes a movable groove opened at one end of the shell away from the cooling fan, the movable groove is rotatably connected to a flip plate, the bottom end of the flip plate is fixed with a rotating shaft, the top end of the flip plate is fixed with a flip rod, one end of the flip rod is provided with a gear rod, telescopic rods are fixed on both sides of the gear rod, screw holes are opened inside the telescopic rod, a guide frame is provided outside the telescopic rod, a motor is provided on one side of the gear rod, and a threaded rod is fixed to the rotating shaft of the motor.

[0008] Furthermore, the threaded rod and the screw hole form a threaded connection, and the gear rod and the flip rod are meshingly connected.

[0009] Furthermore, the inner diameter of the movable groove matches the outer diameter of the flip plate, and the flip plate forms a flip structure inside the movable groove.

[0010] Furthermore, the flip plates are arranged at equal intervals at one end of the housing, and the maximum flip angle of the flip plates is ninety degrees.

[0011] Furthermore, the dustproof component includes an air inlet opened at one end of the shell near the cooling fan, a dustproof net is fixed inside the air inlet, a rotating hole is opened inside the dustproof net, a rotating frame is rotatably connected inside the rotating hole, and a cleaning brush is fixed at one end of the rotating frame.

[0012] Furthermore, one end of the rotating frame is fixedly connected to the rotating shaft of the heat dissipation fan, and the outer diameter of the rotating frame matches the inner diameter of the rotating hole.

[0013] Furthermore, the outer diameter of the dustproof net matches the inner diameter of the air inlet, and the inner diameter of the air inlet matches the outer diameter of the cooling fan.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The heat dissipation structure of the automotive lithium battery proposed by the utility model is different from that of the existing automotive lithium battery in that the heat dissipation structure loses heat too quickly when the temperature is low. The utility model can easily control the temperature of the battery body through the ventilation component. When used in low temperature conditions, the flip plate fills the inside of the movable groove. At this time, the inside of the shell will not circulate air, which will preserve the heat of the battery body and improve the battery life. When the temperature is high, the starting motor drives the threaded rod to rotate. The threaded rod rotates inside the screw hole to push the telescopic rod. The telescopic rod pushes the gear rod. The gear rod drives the screw hole to flip. The screw hole drives the flip plate to flip so that air can enter the movable groove.

[0016] 2. The heat dissipation structure of the automotive lithium battery proposed by the utility model can prevent dust from entering the interior of the shell through the dustproof component. When in use, air enters the air inlet, and the dustproof net can filter the dust to prevent the dust from entering the interior of the shell. The rotating frame rotates with the rotation of the cooling fan, and the rotating frame drives the cleaning brush to rotate to brush off the dust on the surface of the dustproof net, thereby preventing the inside of the dustproof net from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front structural schematic diagram of the utility model;

[0018] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the ventilation assembly structure of the utility model;

[0021] Figure 5 For the utility model Figure 4 Schematic diagram of the local enlarged structure at point A in the middle.

[0022] In the figure: 1. shell; 2. dustproof component; 21. air inlet; 22. dustproof net; 221. rotating hole; 23. rotating frame; 231. cleaning brush; 3. ventilation component; 31. movable slot; 32. flip plate; 321. rotating shaft; 322. flip rod; 33. gear rod; 331. telescopic rod; 332. screw hole; 34. motor; 341. threaded rod; 35. guide frame; 4. battery body; 5. cooling fan. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0025] Combination Figure 1-Figure 3 The heat dissipation structure of a vehicle lithium battery includes a shell 1, a heat dissipation fan 5 installed at one end inside the shell 1, and a battery body 4 arranged inside the shell 1. A dustproof component 2 is provided at one end of the shell 1 close to the heat dissipation fan 5, and a ventilation component 3 is provided at one end of the shell 1 away from the heat dissipation fan 5.

[0026] The utility model is further described below in conjunction with embodiments.

[0027] Embodiment 1:

[0028] See also Figure 4 and Figure 5 The ventilation assembly 3 includes an active groove 31 opened at one end of the shell 1 away from the heat dissipation fan 5, the active groove 31 is rotatably connected with a flip plate 32, the bottom end of the flip plate 32 is fixed with a rotating shaft 321, the top of the flip plate 32 is fixed with a flip rod 322, one end of the flip rod 322 is provided with a gear rod 33, both sides of the gear rod 33 are fixed with a telescopic rod 331, the telescopic rod 331 is provided with a screw hole 332, the outside of the telescopic rod 331 is provided with a guide frame 35, one side of the gear rod 33 is provided with a motor 34, the rotating shaft of the motor 34 is fixed with a threaded rod 341, the threaded rod 341 and the screw hole 332 form a threaded connection, the gear rod 33 and the flip rod 322 are meshed and connected, the inner diameter of the active groove 31 matches the outer diameter of the flip plate 32, the flip plate 32 forms a flip structure inside the active groove 31, the flip plates 32 are arranged at one end of the shell 1 at equal intervals, and the maximum flip angle of the flip plate 32 is ninety degrees.

[0029] Specifically, when used at a low temperature, the flip plate 32 fills the interior of the movable groove 31. At this time, air will not circulate inside the outer shell 1, which will preserve the heat of the battery body 4 and improve the battery life of the battery body 4. When the temperature is high, the starting motor 34 drives the threaded rod 341 to rotate. The threaded rod 341 rotates inside the screw hole 332 to push the telescopic rod 331. The telescopic rod 331 pushes the gear rod 33. The gear rod 33 drives the screw hole 332 to flip. The screw hole 332 drives the flip plate 32 to flip to allow air to enter the movable groove 31.

[0030] Embodiment 2:

[0031] See also Figure 3 The dustproof component 2 includes an air inlet 21 opened at one end of the shell 1 near the cooling fan 5, a dustproof net 22 is fixed inside the air inlet 21, a rotating hole 221 is opened inside the dustproof net 22, a rotating frame 23 is rotatably connected inside the rotating hole 221, a cleaning brush 231 is fixed at one end of the rotating frame 23, one end of the rotating frame 23 is fixedly connected to the rotating shaft of the cooling fan 5, the outer diameter of the rotating frame 23 matches the inner diameter of the rotating hole 221, the outer diameter of the dustproof net 22 matches the inner diameter of the air inlet 21, and the inner diameter of the air inlet 21 matches the outer diameter of the cooling fan 5.

[0032] Specifically, when in use, air enters the air inlet 21, and the dustproof net 22 can filter the dust to prevent the dust from entering the interior of the outer shell 1, and the rotating frame 23 rotates with the rotation of the cooling fan 5. The rotating frame 23 drives the cleaning brush 231 to rotate and brush off the dust on the surface of the dustproof net 22 to prevent the dustproof net 22 from being blocked.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation structure for a lithium battery for a vehicle, comprising a housing (1), a heat dissipation fan (5) installed at one end of the housing (1), and a battery body (4) arranged inside the housing (1), characterized in that: A dustproof component (2) is provided at one end of the housing (1) close to the cooling fan (5), and a ventilation component (3) is provided at one end of the housing (1) away from the cooling fan (5); The ventilation assembly (3) comprises a movable groove (31) provided at one end of the housing (1) away from the heat dissipation fan (5), a flip plate (32) being rotatably connected inside the movable groove (31), a rotating shaft (321) being fixed at the bottom end of the flip plate (32), a flip rod (322) being fixed at the top end of the flip plate (32), a gear rod (33) being provided at one end of the flip rod (322), telescopic rods (331) being fixed at both sides of the gear rod (33), a screw hole (332) being provided inside the telescopic rod (331), a guide frame (35) being provided outside the telescopic rod (331), a motor (34) being provided at one side of the gear rod (33), and a threaded rod (341) being fixed to the rotating shaft of the motor (34).

2. The heat dissipation structure of a lithium battery for a vehicle according to claim 1, characterized in that: The threaded rod (341) and the screw hole (332) are threadedly connected, and the gear rod (33) and the flip rod (322) are meshingly connected.

3. The heat dissipation structure of a lithium battery for a vehicle according to claim 1, characterized in that: The inner diameter of the movable groove (31) matches the outer diameter of the flip plate (32), and the flip plate (32) forms a flip structure inside the movable groove (31).

4. The heat dissipation structure of a lithium battery for a vehicle according to claim 1, characterized in that: The flip plates (32) are arranged at equal intervals at one end of the housing (1), and the maximum flip angle of the flip plates (32) is ninety degrees.

5. The heat dissipation structure of a lithium battery for a vehicle according to claim 1, characterized in that: The dustproof component (2) comprises an air inlet (21) provided at one end of the housing (1) close to the cooling fan (5); a dustproof net (22) is fixed inside the air inlet (21); a rotating hole (221) is provided inside the dustproof net (22); a rotating frame (23) is rotatably connected inside the rotating hole (221); a cleaning brush (231) is fixed at one end of the rotating frame (23).

6. The heat dissipation structure of a lithium battery for a vehicle according to claim 5, characterized in that: One end of the rotating frame (23) is fixedly connected to the rotating shaft of the heat dissipation fan (5), and the outer diameter of the rotating frame (23) matches the inner diameter of the rotating hole (221).

7. The heat dissipation structure of a lithium battery for a vehicle according to claim 5, characterized in that: The outer diameter of the dustproof net (22) matches the inner diameter of the air inlet (21), and the inner diameter of the air inlet (21) matches the outer diameter of the cooling fan (5).

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