Dustproof and waterproof cross-country scissor forklift electrical control box

Abstract

The utility model relates to electrical control box technical field discloses a dustproof waterproof cross country cutting formula forklift electrical control box, including box body, the inside of box body is installed with two heat dissipation air pipe, two heat dissipation air pipe all are equipped with the fixed ring, and the fixed frame is fixedly connected between two fixed rings, and the inside of fixed frame is fixedly connected with the installation box, and the upside of installation box is provided with the apron, is provided with the sealing ring between apron and installation box, and the upside of box body is provided with insulating oil filling mechanism, and the inside of heat dissipation air pipe is provided with air cooling heat dissipation mechanism, and one side of box body is provided with circuit connection mechanism, the utility model adds insulating oil to the inside of box body through insulating oil filling pipe, can form insulating environment in the periphery of circuit board, can significantly improve the insulating capacity of cross country cutting formula forklift electrical control box, avoids the interference caused by short circuit.

Description

Technical Field

[0001] This utility model relates to the field of electrical control box technology, and in particular to a dustproof and waterproof off-road scissor lift electrical control box. Background Technology

[0002] The forklift electrical control box is the core control component of the forklift's mechanical structure, mainly used to control various actions of the forklift. The control box contains various circuits, switches, and displays. By combining different circuits and switches, the forklift can perform operations such as lifting, lowering, forward movement, and reversing. However, after prolonged use, the insulation performance of existing forklift electrical control boxes deteriorates sharply. Frequent arcing causes relays, contactors, and other components to overheat, deform, and have their contacts burned, leading to short circuits with other circuits and ultimately causing safety accidents or serious damage to the forklift. In view of this, a dustproof and waterproof off-road scissor forklift electrical control box that can solve the above problems is proposed. Utility Model Content

[0003] To address the technical issue of insulation performance in forklift electrical control boxes, this utility model provides a dustproof and waterproof off-road scissor forklift electrical control box.

[0004] This utility model is achieved using the following technical solution: a dustproof and waterproof off-road scissor lift electrical control box, comprising a box body, two heat dissipation ducts installed on the inner side of the box body, each of the two heat dissipation ducts being fitted with a fixing ring, a fixing frame being fixedly connected between the two fixing rings, an installation box being fixedly connected inside the fixing frame, a cover plate being provided on the upper side of the installation box, a sealing ring being provided between the cover plate and the installation box, an insulating oil filling mechanism being provided on the upper side of the box body, a wind-cooling heat dissipation mechanism being provided inside the heat dissipation ducts, and a circuit connection mechanism being provided on one side of the box body.

[0005] As a further improvement to the above solution, the insulating oil filling mechanism includes an insulating oil filling pipe that communicates with the upper side of the box body, and the upper end of the insulating oil filling pipe is provided with a flip cover.

[0006] The above technical solution allows for the addition of insulating oil by opening or closing the flip cover, facilitating timely replenishment and protection of the insulating oil. As a further improvement to the above solution, the air-cooled heat dissipation mechanism includes a fan installed inside each of the heat dissipation ducts, and a filter screen is provided at both ends of each of the heat dissipation ducts.

[0007] The above technical solution allows for the use of a fan to draw cooler air from the outside into the cooling duct, thereby accelerating the cooling effect and rapidly cooling the insulating oil inside the box. As a further improvement to the above solution, the circuit connection mechanism includes a sealing platform fixedly connected to the upper side of the box, a plurality of wiring terminals are installed on the upper side of the sealing platform, and a circuit board is installed on the bottom of the inner side of the mounting box, and the circuit board is electrically connected to the wiring terminals.

[0008] The above technical solution enables rapid power connection to various functional modules of the forklift via wiring terminals, achieving modular power distribution and management. As a further improvement to the above solution, multiple heat dissipation fins are installed on the outer side of the box.

[0009] The above technical solution can be used to transfer heat to the insulating oil through multiple heat dissipation fins, thereby improving heat dissipation performance. As a further improvement to the above solution, connecting plates are fixedly connected to the lower two sides of the box body, and each connecting plate has multiple screw holes.

[0010] The above technical solution allows for the rapid installation and disassembly of the electrical control box via a connecting plate; Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model adds insulating oil to the inside of the box through an insulating oil filling pipe, which can create an insulating environment around the circuit board, significantly improving the insulation capability of the electrical control box of the off-road scissor forklift and avoiding interference caused by short circuits; 2. This utility model achieves the effect of cooling by installing multiple heat dissipation ducts inside the box and installing a fan inside each heat dissipation duct, thereby accelerating the airflow and cooling the internal insulating oil. Attached Figure Description

[0011] Figure 1 A schematic diagram of the overall structure of an electrical control box for a dustproof and waterproof off-road scissor lift provided by this utility model; Figure 2 for Figure 1 A sectional view; Figure 3 for Figure 1 Internal structure diagram; Figure 4 This is a schematic diagram of the structure of the fixing ring and the heat dissipation duct in one embodiment of the present invention.

[0012] Explanation of key symbols: 1. Connecting plate; 2. Heat dissipation fins; 3. Insulating oil filling pipe; 4. Terminal block; 5. Box body; 6. Sealing platform; 7. Filter screen; 8. Fixing frame; 9. Circuit board; 10. Mounting box; 11. Cover plate; 12. Sealing ring; 13. Heat dissipation duct; 14. Fixing ring; 15. Fan. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0014] Example: Please combine Figures 1-3 The dustproof and waterproof off-road scissor lift electrical control box of this embodiment includes a box body 5, which has a cubic structure and is made of engineering plastic. Please combine Figure 2 As shown, two heat dissipation ducts 13 are installed on the inner side of the box 5. In this embodiment, the heat dissipation ducts 13 are cylindrical structures and are symmetrically arranged. When they come into contact with the insulating oil inside the box 5, they can absorb heat through heat conduction. The inner side can be provided with pleats to increase the heat exchange area and improve the heat exchange efficiency. On the other hand, it can provide support for the installation of the box 10. Please combine Figure 4 As shown, each of the two heat dissipation ducts 13 is fitted with a fixing ring 14, and a fixing frame 8 is fixedly connected between the two fixing rings 14. In this embodiment, the fixing ring 14 and the heat dissipation duct 13 are detachably connected, so that the mounting box 10 can be quickly assembled and disassembled when maintenance is required. Please combine Figure 4 As shown, a mounting box 10 is fixedly connected to the inner side of the fixed frame 8. A cover plate 11 is provided on the upper side of the mounting box 10. A sealing ring 12 is provided between the cover plate 11 and the mounting box 10. The cover plate 11 and the mounting box 10 are detachable, which facilitates the management of the internal circuit board. In this embodiment, the circuit board 9 is protected by providing a sealed environment for the mounting box 10 through the cover plate 11. In other embodiments, the oil-immersed circuit board mounting method can be referred to. In this way, the heat generated by the circuit board 9 during operation can be directly transferred to the insulating oil, which can significantly improve the heat dissipation performance of the electrical control box. Please combine Figure 4 As shown, an insulating oil filling mechanism is provided on the upper side of the box 5, a wind-cooling heat dissipation mechanism is provided on the inner side of the heat dissipation duct 13, and a circuit connection mechanism is provided on one side of the box 5. Please combine Figure 1 As shown, the insulating oil filling mechanism includes an insulating oil filling pipe 3 connected to the upper side of the box 5. The upper end of the insulating oil filling pipe 3 is provided with a flip cover. The insulating oil filled into the box 5 can be mineral insulating oil, silicone oil, or vegetable insulating oil. The staff needs to check the insulating oil in the box 5 regularly to see if there is any leakage. If leakage occurs, the insulating oil needs to be replenished in time. In addition, the insulating oil itself has good insulation properties. Ensuring that the space around the circuit board 9 is filled with enough insulating oil can significantly improve the insulation performance of the circuit board 9 and even the entire electrical control box, making the whole equipment safer. Please combine Figure 2 As shown, the air-cooled heat dissipation mechanism includes a fan 15 installed inside each heat dissipation duct 13. The fan 15 can bring outside air through the inside of the heat dissipation duct 13 and use low-temperature air to absorb the heat transferred from the heat dissipation duct 13, thereby indirectly absorbing and transferring the heat in the insulating oil, thus achieving the effect of cooling the insulating oil. Please combine Figure 1 As shown, each heat dissipation duct 13 is equipped with a filter screen 7 at both ends. The filter screen 7 can block external dust. Since the incoming external air may contain impurities, dust, etc., the filter screen 7 can filter solid particles, ensuring the smooth flow of air inside the heat dissipation duct 13, which indirectly helps to improve heat dissipation performance. Please combine Figure 1 As shown, the circuit connection mechanism includes a sealing platform 6 fixedly connected to the upper side of the housing 5. Multiple wiring terminals 4 are installed on the upper side of the sealing platform 6. Through the multiple wiring terminals 4, it can be quickly plugged and unplugged directly with the various functional wiring terminals on the forklift to achieve the function of plug-and-play. Please combine Figure 2 As shown, a circuit board 9 is installed on the bottom of the inner side of the mounting box 10. The circuit board 9 is electrically connected to the terminal 4. It should be noted that the cable connected below the terminal 4 passes directly through the cover plate 11 and is connected to the circuit board 9. The insulating oil can fill around the connecting cable, providing an insulating environment for each cable and preventing mutual interference or even short circuits. Please combine Figure 1 As shown, please refer to Figure 1 As shown, in this embodiment, a heat dissipation fin 2 is installed on each side of the box body 5, which can expand the heat dissipation area and improve the heat dissipation performance. In other embodiments, the number and area of ​​heat dissipation fins 2 can be increased according to the actual heat dissipation requirements. Please combine Figure 1 As shown, connecting plates 1 are fixedly connected to the lower two sides of the box body 5. In this embodiment, the connecting plates 1 are used to install the electrical control box on the forklift body frame. Each connecting plate 1 has multiple screw holes. The box body 5 can be installed and fixed to the outside through the connecting plates 1. At the same time, when maintenance is required, it can be quickly disassembled and repaired through the screw holes. The implementation principle of the dustproof and waterproof off-road scissor forklift electrical control box in this application embodiment is as follows: it is connected to the external circuit through each terminal 4, and insulating oil is added into the box 5 through the insulating oil filling pipe 3. The amount of insulating oil should be sufficient to cover the entire mounting box 10, which can improve the insulation performance and anti-interference performance. The heat dissipation area can be expanded through the heat dissipation fins 2, and the heat carried by the insulating oil can be dissipated through the heat dissipation fins 2. When the fan 15 is started, it can accelerate the passage of cold air from the outside through the heat dissipation duct 13, which can dissipate heat from the insulating oil inside the box 5.

[0015] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A dustproof and waterproof off-road scissor lift electrical control box, comprising a box body (5), characterized in that, Two heat dissipation ducts (13) are installed on the inner side of the box (5). Each of the two heat dissipation ducts (13) is fitted with a fixing ring (14). A fixing frame (8) is fixedly connected between the two fixing rings (14). An installation box (10) is fixedly connected to the inner side of the fixing frame (8). A cover plate (11) is provided on the upper side of the installation box (10). A sealing ring (12) is provided between the cover plate (11) and the installation box (10). An insulating oil filling mechanism is provided on the upper side of the box (5). A wind-cooling heat dissipation mechanism is provided on the inner side of the heat dissipation ducts (13). A circuit connection mechanism is provided on one side of the box (5).

2. The dustproof and waterproof off-road scissor lift electrical control box as described in claim 1, characterized in that, The insulating oil filling mechanism includes an insulating oil filling pipe (3) that communicates with the upper side of the box (5), and the upper end of the insulating oil filling pipe (3) is provided with a flip cover.

3. The dustproof and waterproof off-road scissor lift electrical control box as described in claim 1, characterized in that, The air-cooled heat dissipation mechanism includes a fan (15) installed inside each of the heat dissipation ducts (13), and a filter screen (7) is provided at both ends of each of the heat dissipation ducts (13).

4. The dustproof and waterproof off-road scissor lift electrical control box as described in claim 1, characterized in that, The circuit connection mechanism includes a sealing platform (6) fixedly connected to the upper side of the box (5). Multiple wiring terminals (4) are installed on the upper side of the sealing platform (6). A circuit board (9) is installed on the bottom of the inner side of the mounting box (10). The circuit board (9) is electrically connected to the wiring terminals (4).

5. The dustproof and waterproof off-road scissor lift electrical control box as described in claim 1, characterized in that, Multiple heat dissipation fins (2) are installed on the outside of the box (5).

6. The dustproof and waterproof off-road scissor lift electrical control box as described in claim 1, characterized in that, The lower sides of the box (5) are respectively fixedly connected to connecting plates (1), and each connecting plate (1) has multiple screw holes.

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