Anti-explosion lithium battery forklift

Abstract

The utility model provides an anti-explosion lithium battery forklift and belongs to the technical field of forklifts. The explosion-proof battery box comprises a main box body and a side box body; the side box body is fixedly connected to the first end of the main box body; a battery is arranged in the main box body; a cooling pipe is arranged in the main box body; the cooling pipe is wound outside the battery; and a fan is arranged in the side box body to cool the cooling pipe. Cooling liquid is arranged in the cooling pipe and is driven by a pump. The forklift provided by the utility model comprises the explosion-proof battery box, so that the explosion range of the battery can be limited in the battery box, and other parts of the forklift are protected; meanwhile, heat dissipation of the explosion-proof battery box is achieved through the cooling pipe, air holes do not need to be formed, the overall strength of the explosion-proof battery box is guaranteed, and the explosion-proof battery box has a good explosion-proof effect.

Description

Technical Field

[0001] The utility model relates to the technical field of forklifts, in particular to an explosion-proof lithium battery forklift. Background Art

[0002] A lithium battery forklift is a forklift that uses a lithium battery as a power source. It has the advantages of long battery life, large lifting weight, and fast moving speed. Compared with traditional forklifts, it can significantly improve work efficiency and reduce work costs. A battery pack is provided inside a lithium battery forklift to provide power, and the battery pack may rise too high during use and cause an explosion, affecting the safety of the forklift and the staff. In order to improve the explosion-proof performance of the battery pack, the prior art provides an explosion-proof battery box outside the battery pack. The explosion-proof battery box can control the range of battery explosion and minimize the impact of battery explosion, but it will also affect the heat dissipation of the battery pack. In order to improve the heat dissipation of the explosion-proof battery box, a heat dissipation hole is usually opened on the box body and a heat dissipation fan is provided. Although a good heat dissipation effect can be achieved, the opening of the hole will reduce the strength of the explosion-proof battery box, resulting in a decrease in its protection performance. Therefore, the utility model provides an explosion-proof lithium battery forklift equipped with an explosion-proof battery box with good heat dissipation performance and a stable structure. Utility Model Content

[0003] The utility model aims to provide an explosion-proof lithium battery forklift.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows:

[0005] An explosion-proof lithium battery forklift, comprising: an explosion-proof battery box; the explosion-proof battery box comprises a main box body and a side box body; the side box body is fixedly connected to the first end of the main box body; a battery is arranged inside the main box body;

[0006] The main box body is provided with a cooling pipe; the cooling pipe enters the main box body from an inlet opened at the first end of the main box body, is arranged in a serpentine shape on the first surface of the battery, and extends to the second end of the main box body, and extends downward to the second surface of the battery at the second end of the main box body; the cooling pipe distributed on the second surface of the battery extends in a serpentine shape from the second end of the main box body to the first end of the main box body, and extends out of the main box body from an outlet opened at the first end surface of the main box body;

[0007] The cooling pipe enters the side box after exiting from the outlet of the main box, and is arranged in a serpentine shape inside the side box and extends to communicate with the cooling pipe at the inlet of the main box to form a loop;

[0008] The cooling pipe is provided with a coolant inside, which is driven by a pump;

[0009] A fan is arranged inside the side box; the fan faces the cooling pipes arranged in a serpentine shape; a plurality of air outlets are opened on the first surface of the side box, and air inlet holes are arranged on the two side surfaces.

[0010] On the basis of the above solution and as a preferred solution of the above solution, the number of the fans is two.

[0011] On the basis of the above solution and as a preferred solution of the above solution, the air outlet holes are arranged in a matrix on the first surface of the side box body.

[0012] On the basis of the above solution and as a preferred solution of the above solution, the inlet and outlet of the main box are arranged in the same plane.

[0013] On the basis of the above scheme and as a preferred scheme of the above scheme, an exhaust hole is provided on the main box body; a hole plug is provided in the exhaust hole; a connecting rod is fixedly connected to the bottom of the hole plug; the connecting rod extends into the interior of the main box body and is fixedly connected to a baffle at the bottom thereof; a spring is provided between the baffle and the main box body; the spring keeps the hole plug plugged in the exhaust hole of the sheet.

[0014] On the basis of the above scheme and as a preferred scheme of the above scheme, a protrusion is arranged on the top of the hole plug; a pull ring is hinged on the protrusion; and the pull ring can be rotated to the bottom of the hole plug.

[0015] The beneficial effects of the utility model are as follows: the forklift provided by the utility model includes an explosion-proof battery box, which can limit the scope of battery explosion to the inside of the battery box, thereby protecting other parts of the forklift; at the same time, the explosion-proof battery box dissipates heat through a cooling pipe, without the need to open air holes, thereby ensuring the overall strength of the explosion-proof battery box and providing it with a good explosion-proof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model.

[0017] Figure 2 It is a partial structural schematic diagram of the utility model.

[0018] Figure 3 This is a schematic diagram of the cooling pipe structure of the utility model.

[0019] Figure 4 It is a schematic diagram of the structure of the exhaust hole and hole plug mechanism of the utility model.

[0020] Figure 5 This is a schematic diagram of the hole plug mechanism structure of the utility model.

[0021] In the figure: 1. main box body; 2. side box body; 3. battery; 4. cooling pipe; 5. fan; 6. air outlet; 7. air inlet; 8. exhaust hole; 9. hole plug; 10. connecting rod; 11. baffle; 12. spring; 13. protrusion; 14. pull ring. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] like Figure 1 and Figure 2 As shown, an explosion-proof lithium battery forklift includes: an explosion-proof battery box, the explosion-proof battery box includes a main box body 1 and a side box body 2. The side box body 2 is fixedly connected to the first end of the main box body 1. A battery 3 is arranged inside the main box body 1. Preferably, the main box body 1 and the side box body 2 are both rectangular box structures.

[0024] A cooling pipe 4 is provided in the main box body 1. Figure 2 and Figure 3 As shown, the cooling pipe 4 enters the main box 1 from the inlet at the first end of the main box 1, is arranged in a serpentine shape on the first surface of the battery 3, and extends to the second end of the main box 1, and then extends downward from the second end of the main box 1 to the second surface of the battery 3. The cooling pipe 4 distributed on the second surface of the battery 3 extends in a serpentine shape from the second end of the main box 1 to the first end of the main box 1, and extends out of the main box 1 from the outlet at the first end surface of the main box 1. The serpentine-arranged cooling pipe 4 has a larger contact surface with the battery 3, which can improve the cooling effect.

[0025] The cooling pipe 4 enters the side box 2 after exiting the outlet of the main box 1, and is arranged in a serpentine shape inside the side box 2 to connect with the cooling pipe 4 at the inlet of the main box 1 to form a loop. The serpentine arrangement section of the cooling pipe 4 in the side box 2 is in the same plane for air cooling.

[0026] The cooling tube 4 is provided with a coolant which is driven by a pump. The pump drives the coolant to circulate in the cooling tube 4 to dissipate heat for the battery 3.

[0027] A fan 5 is disposed inside the side box 2, and the fan 5 faces the cooling pipes 4 arranged in a serpentine shape, so as to implement air cooling to the cooling pipes 4 and the coolant.

[0028] The first surface of the side box body 2 is provided with a plurality of air outlet holes 6, and the two side surfaces are provided with air inlet holes 7. The air outlet holes 6 are directly facing the fan 5, and the air inlet holes 7 are located on both sides of the fan 5.

[0029] Preferably, there are two fans 5, which are arranged on one side of the serpentine arrangement section of the cooling pipe 4 in the side box 2 to ensure air cooling effect. The air outlet holes 6 are arranged in a matrix on the first surface of the side box 2 to ensure uniformity of air outlet.

[0030] The inlet and outlet of the main box 1 are arranged in the same plane.

[0031] Further, such as Figure 4 and Figure 5 As shown, a plurality of exhaust holes 8 are provided on the main housing 1. A hole plug 9 is provided in the exhaust hole 8. A connecting rod 10 is fixedly connected to the bottom of the hole plug 9, and the connecting rod 10 extends into the interior of the main housing 1, and a baffle 11 is fixedly connected to the bottom thereof. A spring 12 is provided between the baffle 11 and the main housing 1, and the spring 12 keeps the hole plug 9 plugged in the exhaust hole 8. When the air pressure inside the main housing 1 is too high, the air pressure pushes the hole plug 9 to move, so that there is a gap between the hole plug 9 and the exhaust hole 8 to discharge the gas, and then the hole plug 9 is plugged into the exhaust hole 8 under the elastic force of the spring 12.

[0032] A protrusion 13 is provided on the top of the hole plug 9, and a pull ring 14 is hinged on the protrusion 13. The pull ring 14 can be rotated to the bottom of the hole plug 9. The hole plug 9 can be pulled from the outside through the pull ring 14.

[0033] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. An explosion-proof lithium battery forklift, characterized in that: include: An explosion-proof battery box; the explosion-proof battery box comprises a main box body (1) and a side box body (2); the side box body (2) is fixedly connected to a first end of the main box body (1); a battery (3) is arranged inside the main box body (1); A cooling pipe (4) is arranged in the main box (1); the cooling pipe (4) enters the main box (1) from an inlet opening at the first end of the main box (1), is arranged in a serpentine shape on the first surface of the battery (3), and extends toward the second end of the main box (1), and extends downward from the second end of the main box (1) to the second surface of the battery (3); the cooling pipe (4) distributed on the second surface of the battery (3) extends from the second end of the main box (1) to the first end of the main box (1) in a serpentine shape, and extends out of the main box (1) from an outlet opening at the first end surface of the main box (1); The cooling pipe (4) enters the side box (2) after exiting the outlet of the main box (1), and is arranged in a serpentine shape inside the side box (2) to connect with the cooling pipe (4) at the inlet of the main box (1) to form a loop; The cooling pipe (4) is provided with a cooling liquid inside and driven by a pump; A fan (5) is arranged inside the side box (2); the fan (5) faces the cooling pipe (4) arranged in a serpentine shape; a plurality of air outlet holes (6) are opened on the first surface of the side box (2), and air inlet holes (7) are arranged on the two side surfaces.

2. An explosion-proof lithium battery forklift according to claim 1, characterized in that: The number of the fans (5) is two.

3. The explosion-proof lithium battery forklift according to claim 1, characterized in that: The air outlet holes (6) are arranged in a matrix on the first surface of the side box body (2).

4. The explosion-proof lithium battery forklift according to claim 1, characterized in that: The inlet and outlet of the main box (1) are arranged in the same plane.

5. The explosion-proof lithium battery forklift according to claim 1, characterized in that: The main housing (1) is provided with an exhaust hole (8); a hole plug (9) is provided in the exhaust hole (8); a connecting rod (10) is fixedly connected to the bottom of the hole plug (9); the connecting rod (10) extends into the interior of the main housing (1) and is fixedly connected to a baffle (11) at the bottom; a spring (12) is provided between the baffle (11) and the main housing (1); the spring (12) keeps the hole plug (9) plugged in the exhaust hole (8).

6. The explosion-proof lithium battery forklift according to claim 5, characterized in that: A protrusion (13) is provided on the top of the hole plug (9); a pull ring (14) is hinged on the protrusion (13); and the pull ring (14) can be rotated to the bottom of the hole plug (9).

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