Forklift battery assembly with automatic switch valve

Abstract

The invention discloses a forklift battery assembly provided with an automatic switch valve, and relates to the technical field of forklift batteries, brackets are mounted on two sides of the bottom of a battery box, a liquid storage box is mounted on the brackets, the liquid storage box is connected with the automatic switch valve through a connecting pipe structure, and the automatic switch valve is mounted on the battery box; a battery assembly is installed in a battery box, a limiting strip is installed at the top of the battery assembly, a smoke sensor is installed on the inner wall of the battery box and arranged above the limiting strip, and when the battery assembly is abnormal due to external high temperature or over-discharge of a battery of the forklift battery structure, smoke is generated; the smoke sensor transmits a signal to the controller, and the controller starts the micro water pump and the automatic switch valve, so that cooling liquid in the liquid storage tank is conveyed to the spraying assembly, spraying fire extinguishing operation is performed on a battery assembly in the battery box, safe operation of a battery is guaranteed, burning and explosion loss is reduced, and personal safety of workers is improved.

Description

Technical Field

[0001] The invention relates to the technical field of forklift batteries, in particular to a forklift battery assembly provided with an automatic switch valve. Background Art

[0002] An electric forklift is an industrial vehicle that uses batteries as a power source and is used for short-distance cargo handling in warehousing, logistics, manufacturing and other places. It has the advantages of easy operation, no exhaust emissions, low noise, and low maintenance costs. The forklift battery is an important component of the electric forklift. It provides a power source for the forklift, enabling it to carry out cargo handling operations in warehouses, docks, factories and other places;

[0003] During use, it was found that long-term overcharging will cause excessive gas to be generated inside the battery, increasing the internal pressure. At the same time, when the forklift is working, the battery may be over-discharged, which will cause an imbalance in the chemical reaction inside the battery and generate excessive heat. In addition, using the battery in a high-temperature environment or storing the battery in a high-temperature environment may cause the battery to overheat, thereby causing the possibility of explosion. For this reason, we have improved the above-mentioned existing technology based on actual usage. Summary of the invention

[0004] The object of the present invention is to provide a forklift battery assembly provided with an automatic switching valve to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A forklift battery assembly with an automatic switch valve comprises a battery box, a battery box cover is installed on the top of the battery box, brackets are installed on both sides of the bottom of the battery box, and a liquid storage tank is installed on the brackets, the liquid storage tank is connected to the automatic switch valve through a connecting pipe structure, and the automatic switch valve is installed on the battery box, a battery assembly is installed inside the battery box, a limit strip is installed on the top of the battery assembly, and a smoke sensor is installed on the inner wall of the battery box, and the smoke sensor is arranged above the limit strip, a lower notch matching the automatic switch valve is provided on the side wall of the battery box close to the liquid storage tank, an upper notch matching the automatic switch valve is provided on the battery box cover, and the lower notch is adapted to the upper notch, a handle is movably provided on the top of the battery box cover, and the handle is arranged on the top of the upper notch, and a spray assembly is provided on the top inner wall of the battery box cover.

[0007] Furthermore: the bracket is an L-shaped bracket, and the bracket is connected to the bottom of the battery box through a connecting piece, and the tops of the two groups of brackets are connected through a connecting cross bar.

[0008] Furthermore: the bottom of the connecting cross bar is installed on the top of the liquid storage tank through a connecting piece, a micro water pump and a controller are installed on the top of the liquid storage tank, the water inlet of the micro water pump is connected to the inner cavity of the liquid storage tank through a pipe, and the water outlet of the micro water pump is connected to a connecting hose, and the other end of the connecting hose is connected to the automatic switch valve, and an observation strip is arranged on the outer wall of the liquid storage tank.

[0009] Furthermore: the spray assembly includes a water inlet pipe, the rear end of which is connected to an infusion main pipe, the top of which is connected to a support rod, a sliding groove is provided on the support rod, and a sliding bar matching the sliding groove is provided on the top inner wall of the battery box cover, and equidistant infusion auxiliary pipes are connected on both sides of the infusion main pipe, and nozzles are evenly arranged at the bottom of the infusion main pipe and the infusion auxiliary pipe.

[0010] Furthermore: the front end of the water inlet pipe is communicated with the inner cavity of the automatic switch valve through a sealing ring.

[0011] Furthermore: the bottom of the handle is connected to a limit plate, and two groups of support plates with the same structure are symmetrically installed on both sides of the outer wall of the limit plate. The top of the support plate is connected to a vertical rod, and a spring is sleeved on the vertical rod, and the bottom of the spring is in contact with the support plate.

[0012] Furthermore: a vertical through groove matching the limit plate is provided on the battery box cover, and a movable vertical groove matching the support plate is provided on the inner wall of the battery box cover, and the top of the spring abuts against the top inner wall of the movable vertical groove.

[0013] Furthermore: the controller is a BMS controller, and the controller is electrically connected to the micro water pump, the smoke sensor and the automatic switch valve respectively.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. When the battery structure of the forklift is abnormal due to external high temperature or excessive discharge of the battery, smoke is generated. The smoke sensor transmits the signal to the controller, and the controller starts the micro water pump and automatic switch valve to transport the coolant in the liquid storage tank to the spray assembly, and sprays the battery assembly in the battery box to extinguish the fire, ensuring the safe operation of the battery, reducing the loss of combustion and explosion, and improving the life safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the battery box structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the battery box cover connector of the present invention;

[0019] Figure 4It is a schematic diagram of the structure of the spray assembly of the present invention;

[0020] Figure 5 This is a schematic diagram of the handle structure of the present invention.

[0021] In the figure: 1. battery box; 101. battery assembly; 102. limit strip; 103. smoke sensor; 104. lower notch; 2. battery box cover; 201. upper notch; 202. water inlet pipe; 203. nozzle; 204. support rod; 205. infusion main pipe; 206. infusion auxiliary pipe; 207. sliding groove; 3. bracket; 301. connecting cross bar; 4. liquid storage tank; 401. micro water pump; 402. controller; 403. observation strip; 404. connecting hose; 5. automatic switch valve; 6. handle; 601. limit plate; 602. support plate; 603. vertical rod; 604. spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-5The present invention provides a technical solution: a forklift battery assembly with an automatic switch valve, comprising a battery box 1, a battery box cover 2 is installed on the top of the battery box 1, and brackets 3 are installed on both sides of the bottom of the battery box 1. The use of the brackets 3 provides an outer protective structure for the battery box 1 and increases the stability of the battery box 1. A liquid storage tank 4 is installed on the bracket 3, and the interior is filled with coolant for extinguishing fire and isolating oxygen. The liquid storage tank 4 is connected to an automatic switch valve 5 through a connecting pipe structure, and the automatic switch valve 5 is installed on the battery box 1. A battery assembly 101 is installed inside the battery box 1, a limit strip 102 is installed on the top of the battery assembly 101, and a smoke sensor 103 is installed on the inner wall of the battery box 1 to monitor the battery assembly 101 in the battery box 1. If smoke occurs due to overload or overheating, the signal is transmitted to the controller 402 to implement In the present automatic fire extinguishing operation, the smoke sensor 103 is arranged above the limit strip 102, and a lower notch 104 matching the automatic switch valve 5 is provided on the side wall of the battery box 1 near the liquid storage tank 4, and an upper notch 201 matching the automatic switch valve 5 is provided on the battery box cover 2, and the lower notch 104 is adapted to the upper notch 201, so as to facilitate the installation and removal of the automatic switch valve 5, and replace and maintain it to ensure the smooth operation of the device, and a handle 6 is movably provided on the top of the battery box cover 2, and the handle 6 is arranged on the top of the upper notch 201, and a spray assembly is provided on the top inner wall of the battery box cover 2, and the controller 402 is a BMS controller, which is an electronic system for monitoring and managing battery packs, which is a prior art and will not be described in detail, and the controller 402 is electrically connected to the micro water pump 401, the smoke sensor 103 and the automatic switch valve 5 respectively.

[0024] In this embodiment, after the battery box 1 is installed, the automatic switch valve 5 is installed between the upper slot 201 and the lower slot 104. After the various pipes are connected, the smoke sensor 103 monitors the battery assembly 101. When smoke is generated due to overheating of the battery assembly 101, the smoke sensor 103 transmits an alarm signal to the controller 402. The controller 402 immediately works to transmit the signal to the automatic switch valve 5 and the micro water pump 401, and the coolant in the liquid storage tank 4 is transported to the spray assembly and sprayed onto the battery assembly 101 through the nozzle 203 to isolate oxygen and perform fire extinguishing operations to avoid the occurrence of combustion and explosion, reduce losses and ensure life safety.

[0025] Among them, preferably, the bracket 3 is an L-shaped frame, and the bracket 3 is connected to the bottom of the battery box 1 through a connecting piece, and the tops of the two groups of brackets 3 are connected by a connecting cross bar 301, which increases the stability of the battery box 1 and ensures that the installed liquid storage tank 4 has a stable structure.

[0026] Preferably, the bottom of the connecting cross bar 301 is installed on the top of the liquid storage tank 4 through a connecting piece, and a micro water pump 401 and a controller 402 are installed on the top of the liquid storage tank 4. The water inlet of the micro water pump 401 is connected to the inner cavity of the liquid storage tank 4 through a pipe, and the water outlet of the micro water pump 401 is connected to a connecting hose 404, and the other end of the connecting hose 404 is connected to the automatic switch valve 5. An observation strip 403 is provided on the outer wall of the liquid storage tank 4, and a liquid filling port (not shown in the figure) is provided on the liquid storage tank 4, which can facilitate the observation of the coolant in the liquid storage tank 4 and facilitate timely replenishment.

[0027] Preferably, the spray assembly includes a water inlet pipe 202, the rear end of which is connected to an infusion main pipe 205, the top of which is connected to a support rod 204, a sliding groove 207 is provided on the support rod 204, and a sliding bar matching the sliding groove 207 is provided on the top inner wall of the battery box cover 2, and equidistant infusion sub-pipes 206 are connected on both sides of the infusion main pipe 205, and nozzles 203 are evenly arranged at the bottom of the infusion main pipe 205 and the infusion sub-pipe 206.

[0028] In this embodiment, please refer to Figure 1 , Figure 3 and Figure 4 The cooperation between the sliding groove 207 and the sliding bar can facilitate the disassembly, assembly and maintenance of the spray assembly. The cross-shaped structure composed of the infusion main pipe 205 and the infusion auxiliary pipe 206 can perform a comprehensive spraying operation in the battery box 1 to ensure high efficiency of fire extinguishing.

[0029] Preferably, the front end of the water inlet pipe 202 is connected to the inner cavity of the automatic switch valve 5 through a sealing ring. The water inlet pipe 202, the automatic switch valve 5 and the connecting hose 404 are connected to each other.

[0030] Preferably, the bottom of the handle 6 is connected to a limiting plate 601, and two groups of support plates 602 with the same structure are symmetrically installed on both sides of the outer wall of the limiting plate 601. The top of the support plate 602 is connected to a vertical rod 603, and a spring 604 is sleeved on the vertical rod 603, and the bottom of the spring 604 abuts against the support plate 602. A vertical through groove matching the limiting plate 601 is opened on the battery box cover 2, and the inner wall of the battery box cover 2 is provided with a movable vertical groove matching the support plate 602, and the top of the spring 604 abuts against the top inner wall of the movable vertical groove.

[0031] In this embodiment, please refer to Figure 1 and Figure 5 When the automatic switch valve 5 is installed on the upper notch 201 and the lower notch 104, the limit plate 601 is pressed down in the vertical through groove by the vertical rod 603 and the spring 604 to ensure the stable connection of the automatic switch valve 5. Conversely, the limit plate 601 on the automatic switch valve 5 is released by pulling the handle, which facilitates its disassembly and maintenance, and the operation is simple.

[0032] 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 forklift battery assembly provided with an automatic switch valve, comprising a battery box (1), characterized in that: A battery box cover (2) is installed on the top of the battery box (1), brackets (3) are installed on both sides of the bottom of the battery box (1), and a liquid storage box (4) is installed on the brackets (3), the liquid storage box (4) is connected to an automatic switch valve (5) via a connecting pipe structure, and the automatic switch valve (5) is installed on the battery box (1), a battery assembly (101) is installed inside the battery box (1), a limit strip (102) is installed on the top of the battery assembly (101), and a smoke sensor (103) is installed on the inner wall of the battery box (1), and the smoke sensor (103) is installed on the inner wall of the battery box (1). The sensor (103) is arranged above the limit bar (102); a lower notch (104) matching the automatic switch valve (5) is provided on the side wall of the battery box (1) close to the liquid storage tank (4); an upper notch (201) matching the automatic switch valve (5) is provided on the battery box cover (2); the lower notch (104) is adapted to the upper notch (201); a handle (6) is movably provided on the top of the battery box cover (2); the handle (6) is arranged on the top of the upper notch (201); and a spray assembly is provided on the top inner wall of the battery box cover (2).

2. A forklift battery assembly with an automatic switch valve according to claim 1, characterized in that: The bracket (3) is an L-shaped bracket, and the bracket (3) is connected to the bottom of the battery box (1) via a connecting piece, and the tops of the two groups of brackets (3) are connected via a connecting cross bar (301).

3. A forklift battery assembly with an automatic switch valve according to claim 2, characterized in that: The bottom of the connecting cross bar (301) is installed on the top of the liquid storage tank (4) through a connecting piece. A micro water pump (401) and a controller (402) are installed on the top of the liquid storage tank (4). The water inlet of the micro water pump (401) is connected to the inner cavity of the liquid storage tank (4) through a pipe, and the water outlet of the micro water pump (401) is connected to a connecting hose (404), and the other end of the connecting hose (404) is connected to an automatic switch valve (5). An observation strip (403) is provided on the outer wall of the liquid storage tank (4).

4. A forklift battery assembly with an automatic switch valve according to claim 1, characterized in that: The spray assembly comprises a water inlet pipe (202), the rear end of the water inlet pipe (202) is connected to a main infusion pipe (205), the top of the main infusion pipe (205) is connected to a support rod (204), a sliding groove (207) is provided on the support rod (204), and a sliding bar matching the sliding groove (207) is provided on the top inner wall of the battery box cover (2), both sides of the main infusion pipe (205) are connected to equidistant infusion pipes (206), and nozzles (203) are evenly arranged at the bottom of the main infusion pipe (205) and the infusion pipe (206).

5. A forklift battery assembly with an automatic switch valve according to claim 4, characterized in that: The front end of the water inlet pipe (202) is connected to the inner cavity of the automatic switch valve (5) through a sealing ring.

6. A forklift battery assembly with an automatic switch valve according to claim 1, characterized in that: The bottom of the handle (6) is connected to a limit plate (601), and two groups of support plates (602) with the same structure are symmetrically installed on both sides of the outer wall of the limit plate (601). The top of the support plate (602) is connected to a vertical rod (603), and a spring (604) is sleeved on the vertical rod (603), and the bottom of the spring (604) is in contact with the support plate (602).

7. A forklift battery assembly with an automatic switch valve according to claim 6, characterized in that: The battery box cover (2) is provided with a vertical through slot matching the limit plate (601), and the inner wall of the battery box cover (2) is provided with a movable vertical slot matching the support plate (602), and the top of the spring (604) abuts against the top inner wall of the movable vertical slot.

8. A forklift battery assembly with an automatic switch valve according to claim 1, characterized in that: The controller (402) is a BMS controller, and the controller (402) is electrically connected to the micro water pump (401), the smoke sensor (103) and the automatic switch valve (5) respectively.

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