Motor control box

Abstract

The utility model relates to the technical field of motor control boxes, in particular to a motor control box, which comprises an outer control box and an inner box mechanism arranged in the outer control box. The inner box mechanism comprises an explosion-proof box, and a reinforcing rib frame is fixedly welded to the inner wall of the explosion-proof box. And the heat dissipation mechanism comprises a heat dissipation hood and a heat dissipation fan, and the heat dissipation fan carries out heat dissipation treatment on the interior of the explosion-proof box. According to the utility model, when the explosion-proof box is vibrated by an external environment or the interior of the explosion-proof box explodes accidentally, the shock absorbers on the four sides perform up-down and left-right reciprocating movement shock absorption treatment, and the shock absorbers slide in the sliding frame through the sliding blocks, so that the explosion-proof box moves in the external control box in a shock absorption manner through the shock absorbers; a reinforcing rib frame is welded in the explosion-proof box, the four walls of the inner side of the explosion-proof box are in the inner side chamfering shape, and the explosion-proof effect of the explosion-proof box is improved through the outer control box, the damping mechanism and the reinforcing rib frame.

Description

Technical Field

[0001] The utility model relates to the technical field of motor control boxes, in particular to a motor control box. Background Art

[0002] At present, due to the lack of track restrictions, underground explosion-proof rubber-tyred trackless vehicles have the characteristics of large traction, strong adaptability, good maneuverability, safety and efficiency, and a wide range of applications. Compared with traditional rail transportation systems, the labor productivity is greatly improved; coupled with the increasing attention and requirements of coal mines for production safety in recent years, underground trackless rubber-tyred transport vehicles have become important equipment for modern underground coal mines. A Chinese patent discloses a motor control box (authorization announcement number CN207039493U), which discloses a motor control box, the control box includes: an explosion-proof control box, in which a motor controller is installed; a brake resistor, the first end of the motor controller is connected to the brake resistor; a radiator, the radiator is installed in the explosion-proof control box, and the radiator is connected to the motor controller and the brake resistor; in this way, the brake resistor can be used to dissipate the excess energy generated during the braking process to avoid damage to the brake; and the high-power motor controller and the brake resistor are cooled by the radiator, which reduces the risk of explosion and realizes the overall explosion-proof function. This patented technology solves the existing problem that the drive of underground trackless rubber-wheeled transport vehicles in coal mines is mainly driven by motors. In view of the use environment of underground coal mines, electrical explosion protection is the core requirement for the safety performance of the whole vehicle. The motor control box, as the core electric drive equipment, has problems with the explosion protection and various electronic control performances of the equipment.

[0003] However, in the prior art, the internal box space of the control box is a whole, and when vibrated, it is easy to cause the internal electrical appliances of the unstable control box to explode.

[0004] It is necessary to solve the problem in the prior art of partitioning the space for installing electrical appliances in a control box and improving the explosion-proof performance.

[0005] Therefore, those skilled in the art provide a motor control box to solve the problems raised in the above background technology. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides:

[0007] A motor control box comprises: an external control box, an internal box mechanism, wherein the internal box mechanism is installed inside the external control box; the internal box mechanism comprises an explosion-proof box, wherein a reinforcing rib frame is welded and fixed on the inner wall of the explosion-proof box; a shock absorbing mechanism, wherein the number of the shock absorbing mechanisms is eight in total and they are installed at both ends of the four outer walls of the explosion-proof box; the explosion-proof box is installed inside the external control box through the shock absorbing mechanism; a heat dissipation mechanism, wherein the heat dissipation mechanism comprises a heat dissipation hood and a heat dissipation fan, and the heat dissipation fan performs heat dissipation treatment on the inside of the explosion-proof box.

[0008] Preferably: a telescopic frame cover is installed between the explosion-proof box and the external control box.

[0009] Preferably, a mounting hole plate is detachably installed in the reinforcing rib frame, and the mounting hole plate is located inside the explosion-proof box.

[0010] Preferably, ventilation slots are provided on both upper and lower sides of the rear wall of the explosion-proof box.

[0011] Preferably, the shock absorbing mechanism comprises a shock absorber, the inner side of which is movably mounted on the outer wall of the explosion-proof box.

[0012] Preferably, a sliding block is installed at one end of the outer side of the shock absorber, a sliding frame is movably provided on the outer side of the sliding block, and the sliding frame is detachably installed on the inner wall of the external control box.

[0013] Preferably, the heat dissipation fan is installed inside the heat dissipation cover, and air outlet slots are formed through the upper and lower side walls of the heat dissipation cover.

[0014] Preferably, an outer box door is rotatably mounted on the front side of the outer control box, a main controller is mounted on the outer wall of the outer box door, a protective cover door is provided on the outer side cover of the main controller, and the protective cover door is rotatably mounted on the outer wall of the outer box door.

[0015] Preferably, an inner box door is rotatably mounted on the front side wall of the explosion-proof box, and a wire management groove is provided through the inner box door.

[0016] Preferably, a rear frame is fixedly mounted on the rear wall of the external control box.

[0017] Technical effects and advantages of the utility model:

[0018] According to the utility model, when the explosion-proof box is subjected to external environmental vibration or an unexpected explosion occurs inside the explosion-proof box, the shock absorbers on four sides are used for reciprocating up and down and left and right shock-absorbing treatment, and the shock absorbers slide inside the sliding frame through the sliders, so that the explosion-proof box moves inside the external control box through the shock absorbers for shock-absorbing, and a reinforcing rib frame is welded inside the explosion-proof box, and the four inner walls of the explosion-proof box are in the shape of inner chamfers, and the explosion-proof effect of the explosion-proof box is increased through the external control box, the shock-absorbing mechanism and the reinforcing rib frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a structural schematic diagram of a motor control box provided in an embodiment of the present application;

[0020] Figure 2 It is a structural schematic diagram of an inner box door in a motor control box provided in an embodiment of the present application;

[0021] Figure 3 It is a structural schematic diagram of a telescopic frame cover in a motor control box provided in an embodiment of the present application;

[0022] Figure 4 It is a structural schematic diagram of a reinforcing rib frame in a motor control box provided in an embodiment of the present application;

[0023] Figure 5 It is a structural schematic diagram of a ventilation slot in a motor control box provided in an embodiment of the present application;

[0024] Figure 6 It is a structural schematic diagram of location A in a motor control box provided in an embodiment of the present application;

[0025] In the figure:

[0026] 1. External control box;

[0027] 2. Inner box mechanism; 201. Explosion-proof box; 202. Telescopic frame cover; 203. Reinforced rib frame; 204. Mounting hole plate; 205. Ventilation slot; 206. Inner box door; 207. Wire management slot;

[0028] 21. shock absorbing mechanism; 211. shock absorber; 212. slider; 213. slide frame;

[0029] 3. heat dissipation mechanism; 301. heat dissipation cover; 302. heat dissipation fan; 303. air outlet slot;

[0030] 4. Outer box door; 5. Main controller; 6. Install rear frame; 7. Protective cover door. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0032] Example 1

[0033] See also Figures 1 to 6In the present embodiment, a motor control box is provided, comprising: an external control box 1, an internal box mechanism 2, the internal box mechanism 2 is installed inside the external control box 1, the internal box mechanism 2 comprises an explosion-proof box 201, the inner wall of the explosion-proof box 201 is welded and fixed with a reinforcing rib frame 203, a shock absorbing mechanism 21, the number of the shock absorbing mechanisms 21 is eight in total, and they are installed at both ends of the four outer walls of the explosion-proof box 201, the explosion-proof box 201 is installed inside the external control box 1 through the shock absorbing mechanism 21, a heat dissipation mechanism 3, the heat dissipation mechanism 3 comprises a heat dissipation hood 301 and a heat dissipation fan 302, the heat dissipation fan 302 performs heat dissipation treatment on the inside of the explosion-proof box 201, a telescopic frame 202 is installed between the explosion-proof box 201 and the external control box 1, a mounting hole plate 204 is detachably installed in the reinforcing rib frame 203, the mounting hole plate 204 is located inside the explosion-proof box 201, and the rear wall of the explosion-proof box 201 Ventilation slots 205 are provided on both sides of the lower part, and the shock absorbing mechanism 21 includes a shock absorber 211. The inner side of the shock absorber 211 is movably installed on the outer wall of the explosion-proof box 201. A slider 212 is installed on one end of the outer side of the shock absorber 211. A slide frame 213 is movably provided on the outer side of the slider 212. The slide frame 213 is detachably installed on the inner wall of the external control box 1. The cooling fan 302 is installed inside the heat dissipation cover 301. The upper and lower side walls of the heat dissipation cover 301 are provided with air outlet slots 303. An outer box door 4 is rotatably installed on the front side of the external control box 1. A main controller 5 is installed on the outer wall of the outer box door 4. A protective cover door 7 is provided on the outer side cover of the main controller 5. The protective cover door 7 is rotatably installed on the outer wall of the outer box door 4. An inner box door 206 is rotatably installed on the front side wall of the explosion-proof box 201. A wire management slot 207 is provided on the inner box door 206. A rear frame 6 is fixedly installed on the rear wall of the external control box 1.

[0034] The motors and electrical appliances are installed inside the explosion-proof box 201 of the inner box mechanism 2 through the mounting hole plate 204;

[0035] The explosion-proof box 201 of the inner box mechanism 2 is installed inside the outer control box 1 through the shock absorbing mechanism 21;

[0036] When the explosion-proof box 201 is subjected to external environmental vibration, or an unexpected explosion occurs inside the explosion-proof box 201, the shock absorbers 211 on the four sides are reciprocated up and down and left and right for shock absorption, and the shock absorbers 211 slide inside the sliding frame 213 through the slider 212, so that the explosion-proof box 201 moves in the external control box 1 through the shock absorbers 211 for shock absorption, and a reinforcing rib frame 203 is welded inside the explosion-proof box 201, and the four inner walls of the explosion-proof box 201 are in the shape of inner chamfers, and the explosion-proof effect of the explosion-proof box 201 is increased by the external control box 1, the shock absorbing mechanism 21 and the reinforcing rib frame 203;

[0037] The heat dissipation mechanism 3 starts the heat dissipation fan 302. The heat dissipation fan 302 starts to draw the air outside the external control box 1 into the heat dissipation hood 301, and discharges it into the external control box 1 through the air outlet slots 303 of the heat dissipation hood 301, and dissipates the heat inside the explosion-proof box 201 through the ventilation slots 205 of the explosion-proof box 201 of the external control box 1.

[0038] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A motor control box, characterized in that: include: An external control box (1), an internal box mechanism (2), wherein the internal box mechanism (2) is installed inside the external control box (1); The inner box mechanism (2) comprises an explosion-proof box (201), and a reinforcing rib frame (203) is welded and fixedly provided on the inner wall of the explosion-proof box (201); Shock absorbing mechanisms (21), the number of the shock absorbing mechanisms (21) being eight in total and being installed at two ends of the four outer walls of the explosion-proof box (201); The explosion-proof box (201) is installed inside the external control box (1) via a shock-absorbing mechanism (21); The heat dissipation mechanism (3) comprises a heat dissipation cover (301) and a heat dissipation fan (302). The heat dissipation fan (302) performs heat dissipation processing inside the explosion-proof box (201).

2. A motor control box according to claim 1, characterized in that: A telescopic frame cover (202) is installed between the explosion-proof box (201) and the external control box (1).

3. A motor control box according to claim 1, characterized in that: A mounting hole plate (204) is detachably mounted in the reinforcing rib frame (203), and the mounting hole plate (204) is located inside the explosion-proof box (201).

4. A motor control box according to claim 1, characterized in that: Ventilation slots (205) are provided on both upper and lower sides of the rear wall of the explosion-proof box (201).

5. A motor control box according to claim 1, characterized in that: The shock absorbing mechanism (21) comprises a shock absorber (211), the inner side of which is movably mounted on the outer wall of the explosion-proof box (201).

6. A motor control box according to claim 5, characterized in that: A sliding block (212) is installed at one end of the outer side of the shock absorber (211), and a sliding frame (213) is movably provided on the outer side of the sliding block (212). The sliding frame (213) is detachably installed on the inner wall of the external control box (1).

7. A motor control box according to claim 1, characterized in that: The heat dissipation fan (302) is installed inside the heat dissipation cover (301), and air outlet slots (303) are provided through the upper and lower side walls of the heat dissipation cover (301).

8. A motor control box according to claim 1, characterized in that: The front side of the external control box (1) is rotatably mounted with an external box door (4), the outer wall of the external box door (4) is mounted with a main controller (5), the outer side cover of the main controller (5) is provided with a protective cover door (7), and the protective cover door (7) is rotatably mounted on the outer wall of the external box door (4).

9. A motor control box according to claim 1, characterized in that: An inner box door (206) is rotatably mounted on the front side wall of the explosion-proof box (201), and a wire management groove (207) is provided through the inner box door (206).

10. The motor control box according to claim 1, characterized in that: A rear mounting frame (6) is fixedly mounted on the rear wall of the external control box (1).

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