Junction box of explosion-proof switched reluctance motor

Abstract

The utility model relates to the technical field of junction boxes, and discloses a junction box of an explosion-proof switched reluctance motor, and the junction box of the explosion-proof switched reluctance motor extrudes a chute of equipment towards an L-shaped insertion block at a motor installation part through the L-shaped insertion block at the motor installation part to drive a clamping block to contract, and the clamping block drives a connecting plate to rise. During disassembly, a rotary knob is rotated, the rotary knob drives a bidirectional screw rod to rotate, the bidirectional screw rod drives a sliding block to move towards the center side, so that the connecting plate drives a spring I to extend, equipment is rotated, an inserting block is embedded into a sliding groove, a clamping block is driven to reset under the action of the spring I and the connecting plate, and the vacant part in the sliding groove is filled, so that the junction box is fixed on a motor; and during disassembly, the rotary knob drives the bidirectional screw rod to rotate, and the bidirectional screw rod drives the sliding block to move towards the center side. The sliding block drives the supporting rod to move, so that the supporting rod is pushed to ascend, the connecting plate and the clamping block are driven to ascend, limiting of an inserting block on the motor is omitted, the base is fixedly connected with the bottom of the junction box body, and therefore the effects that the explosion-proof motor junction box can be conveniently and rapidly disassembled and assembled, and the connection stability is improved are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of junction boxes, and particularly relates to a junction box for an explosion-proof switched reluctance motor. Background Technique

[0002] A switched reluctance motor is a continuously operating electrical drive device, and its structure and working principle are very different from those of traditional AC and DC motors. It does not rely on the interaction of magnetic fields generated by stator and rotor winding currents to generate torque, but relies on the "principle of minimum magnetic resistance" to generate torque.

[0003] According to a junction box for an explosion-proof switched reluctance motor disclosed in Chinese Patent Publication No. CN 216216263 U, it is proposed that the explosion-proof motor junction box needs to occupy a large installation space on the circumference of the motor to meet safety requirements. Therefore, it is not convenient to install the motor in a narrow installation space. This patent designs a new junction box structure, making the space occupied by the junction box smaller, and the structure is firm and safe, solving the problem of large space occupation of the existing junction box. However, when installing this device, it is only fixed by two hooks on the side, which is easy to shake and easily leads to loose wiring.

[0004] Therefore, we propose a junction box for an explosion-proof switched reluctance motor to solve the problems of unstable installation and easy wiring loosening in the above device. Content of the Utility Model

[0005] The purpose of the utility model is to provide a junction box for an explosion-proof switched reluctance motor to solve the problems of unstable installation and easy wiring loosening in the above device proposed in the background technique.

[0006] To solve the above technical problems, the utility model provides the following technical solution: A junction box for an explosion-proof switched reluctance motor, including a junction box body, an installation device is provided at the lower end of the junction box body, and a positioning device is provided at the upper end of the junction box body;

[0007] The installation device includes a base, a chute is provided at the lower end of the base, a connecting plate is slidably connected inside the base, a clamping block is fixedly connected to the outer surface of the lower end of the connecting plate, a plurality of first springs are fixedly connected to the inner side of the lower end of the connecting plate, a limiting plate is fixedly connected to the lower end of the first spring, a support rod is hinged to the lower end of the limiting plate, the other end of the support rod is hinged to a slider, a bidirectional screw is threadedly connected to the middle of the slider, and a knob is fixedly connected to the right end of the bidirectional screw.

[0008] Preferably, the positioning device includes a guide rail, a sliding rod is slidably connected to the left end of the guide rail, a second spring is fixedly connected to the upper end of the sliding rod, a button is fixedly connected to the upper end of the second spring, a cover plate is hinged to the outer surface of the sliding rod, and a card slot is formed at the lower end of the cover plate.

[0009] Preferably, a plurality of clamping blocks are provided and an inclined surface is provided at the lower end of the clamping block. The clamping block penetrates through the base and is slidably connected to the base.

[0010] Preferably, the limiting plate is slidably connected to the base, and the bidirectional screw rod and the knob are both rotatably connected to the base.

[0011] Preferably, two support rods and two sliders are provided, and the two support rods and the sliders are symmetrically distributed on both sides of the bidirectional screw rod. The slider is slidably connected to the base.

[0012] Preferably, the guide rail is fixedly connected to the upper wiring port of the junction box body, and a card slot adapted to the cover plate is formed at the left end of the guide rail.

[0013] Preferably, the button is hinged to the sliding rod, and a convex block is fixedly connected to the upper end of the button.

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

[0015] First, in the present utility model, through the L-shaped insertion block at the motor installation part, the chute of the device is squeezed towards the L-shaped insertion block at the motor installation part, driving the clamping block to contract. The clamping block drives the connecting plate to rise, causing the connecting plate to drive the first spring to extend. Rotate the device to insert the insertion block into the chute. Under the action of the first spring and the connecting plate, the clamping block is reset to fill the empty part in the chute, thereby fixing the junction box on the motor. When disassembling, rotate the knob, the knob drives the bidirectional screw rod to rotate, the bidirectional screw rod drives the slider to move towards the center, the slider drives the support rod to move, thereby pushing the support rod to rise, driving the connecting plate and the clamping block to rise, canceling the limit on the insertion block on the motor. The base is fixedly connected to the bottom of the junction box body, so as to achieve the effect of facilitating the quick disassembly and assembly of the explosion-proof motor junction box and improving the connection stability.

[0016] Second, in the present utility model, after wiring, the cable is clamped by rotating the cover plate. By pressing and sliding the button, the button contracts into the guide rail and drives the second spring to contract. Slide the sliding rod, the sliding rod drives the cover plate to move to the right. The guide rail limits the cover plate. After moving to the right end of the guide rail, under the action of the second spring, the button is pushed to reset to limit the sliding rod, thereby limiting the cover plate and further positioning the connecting cable. Reverse operation can cancel the limit on the cable, so as to achieve the effect of facilitating the enhancement of the connection stability between the motor and the junction box. Description of the Drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a three-dimensional structural schematic diagram of the clamping block connection structure of the present utility model;

[0019] Figure 3 is a sectional schematic diagram of the base structure of the present utility model;

[0020] Figure 4 is a sectional schematic diagram of the positioning device structure of the present utility model.

[0021] Among them: 1. Junction box main body; 2. Installation device; 201. Base; 202. Slide groove; 203. Connecting plate; 204. Clamping block; 205. First spring; 206. Limiting plate; 207. Support rod; 208. Slide block; 209. Bidirectional screw; 210. Knob; 3. Positioning device; 301. Guide rail; 302. Slide rod; 303. Second spring; 304. Button; 305. Cover plate; 306. Convex block. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] The present utility model provides the following technical solutions:

[0024] Embodiment 1

[0025] Please refer to Figures 1-3 , a junction box for an explosion-proof switched reluctance motor, including a junction box main body 1, an installation device 2 is provided at the lower end of the junction box main body 1, and a positioning device 3 is provided at the upper end of the junction box main body 1;

[0026] The installation device 2 includes a base 201, a slide groove 202 is provided at the lower end of the base 201, a connecting plate 203 is slidably connected inside the base 201, a clamping block 204 is fixedly connected to the outer surface of the lower end of the connecting plate 203, several first springs 205 are fixedly connected to the inner side of the lower end of the connecting plate 203, a limiting plate 206 is fixedly connected to the lower end of the first spring 205, a support rod 207 is hinged to the lower end of the limiting plate 206, the other end of the support rod 207 is hinged to a slide block 208, a bidirectional screw 209 is threadedly connected to the middle of the slide block 208, and a knob 210 is fixedly connected to the right end of the bidirectional screw 209.

[0027] Through the above technical solution, the chute 202 of the device is squeezed towards the L-shaped insert block at the motor installation part through the L-shaped insert block at the motor installation part, driving the contraction of the clamping block 204. The clamping block 204 drives the connecting plate 203 to rise, causing the connecting plate 203 to drive the first spring 205 to extend. Rotate the device to insert the insert block into the chute 202. Under the action of the first spring 205 and the connecting plate 203, the clamping block 204 is reset to fill the vacant part in the chute 202, so that the junction box is fixed on the motor. When disassembling, rotate the knob 210. The knob 210 drives the bidirectional screw 209 to rotate. The bidirectional screw 209 drives the slider 208 to move towards the center. The slider 208 drives the support rod 207 to move, thereby pushing the support rod 207 to rise, driving the connecting plate 203 and the clamping block 204 to rise, canceling the limit on the insert block on the motor. The base 201 is fixedly connected to the bottom of the junction box body 1, so as to achieve the effect of facilitating the quick disassembly and assembly of the explosion-proof motor junction box and improving the connection stability.

[0028] Specifically, a plurality of clamping blocks 204 are provided, and an inclined surface is provided at the lower end of the clamping block 204. The clamping block 204 penetrates through the base 201 and is slidably connected to the base 201.

[0029] Through the above technical solution, by providing an inclined surface at the lower end of the clamping block 204, it is convenient for the clamping block 204 to pop out for limiting, and the base 201 plays a limiting role on the clamping block 204.

[0030] Specifically, the limiting plate 206 is slidably connected to the base 201, and the bidirectional screw 209 and the knob 210 are both rotatably connected to the base 201.

[0031] Through the above technical solution, the base 201 plays a limiting role on the limiting plate 206, the bidirectional screw 209 and the knob 210.

[0032] Specifically, two support rods 207 and two sliders 208 are provided, and the two support rods 207 and the two sliders 208 are symmetrically distributed on both sides of the bidirectional screw 209. The slider 208 is slidably connected to the base 201.

[0033] Through the above technical solution, the support rods 207 and the sliders 208 are provided in two, strengthening the connection stability, and the base 201 plays a limiting role on the slider 208.

[0034] Embodiment 2

[0035] Please refer to Figure 1 、 Figure 4, and on the basis of the first embodiment, it is further obtained that the positioning device 3 includes a guide rail 301. A sliding rod 302 is slidably connected to the left end of the guide rail 301. A second spring 303 is fixedly connected to the upper end of the sliding rod 302. A button 304 is fixedly connected to the upper end of the second spring 303. A cover plate 305 is hinged to the outer surface of the sliding rod 302. A card slot is opened at the lower end of the cover plate 305.

[0036] Through the above technical solution, the cable after wiring is clamped by rotating the cover plate 305. By pressing and sliding the button 304, the button 304 contracts into the interior of the guide rail 301 and drives the second spring 303 to contract. The sliding rod 302 is slid, and the sliding rod 302 drives the cover plate 305 to move to the right. The guide rail 301 limits the cover plate 305. After moving to the right end of the guide rail 301, the button 304 is pushed to reset under the action of the second spring 303, and the sliding rod 302 is limited, so as to limit the cover plate 305, further position the connecting cable. Reverse operation can cancel the limitation of the cable, so as to achieve the effect of facilitating the enhancement of the connection stability between the motor and the junction box.

[0037] Specifically, the guide rail 301 is fixedly connected to the upper wiring port of the junction box body 1. A card slot adapted to the cover plate 305 is opened at the left end of the guide rail 301.

[0038] Through the above technical solution, the card slot opened at the left end of the guide rail 301 facilitates the limiting operation of the cover plate 305.

[0039] Specifically, the button 304 is hinged to the sliding rod 302. A convex block 306 is fixedly connected to the upper end of the button 304.

[0040] Through the above technical solution, the sliding rod 302 plays a role in limiting the button 304. The convex block 306 is arranged on the button 304, which facilitates driving the button 304 to move horizontally through the convex block 306.

[0041] Although the specific embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these specific embodiments without departing from the principle and spirit. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A junction box for an explosion-proof switched reluctance motor, comprising a junction box body (1), characterized in that: The lower end of the junction box body (1) is provided with a mounting device (2), and the upper end of the junction box body (1) is provided with a positioning device (3); The mounting device (2) comprises a base (201), a slide groove (202) is provided at the lower end of the base (201), a connecting plate (203) is slidably connected inside the base (201), a clamping block (204) is fixedly connected to the outer surface of the lower end of the connecting plate (203), a plurality of springs (205) are fixedly connected to the inner side of the lower end of the connecting plate (203), the lower end of the spring (205) is fixedly connected to a limiting plate (206), the lower end of the limiting plate (206) is hingedly connected to a support rod (207), the other end of the support rod (207) is hingedly connected to a slider (208), the middle part of the slider (208) is threadedly connected to a bidirectional screw rod (209), and the right end of the bidirectional screw rod (209) is fixedly connected to a knob (210).

2. The junction box of an explosion-proof switched reluctance motor according to claim 1, characterized in that: The positioning device (3) comprises a guide rail (301), the left end of the guide rail (301) is slidably connected to a slide bar (302), the upper end of the slide bar (302) is fixedly connected to a second spring (303), the upper end of the second spring (303) is fixedly connected to a button (304), the outer surface of the slide bar (302) is hinged with a cover plate (305), and the lower end of the cover plate (305) is provided with a slot.

3. The junction box of an explosion-proof switched reluctance motor according to claim 1, characterized in that: A plurality of the card blocks (204) are provided, and an inclined surface is provided at the lower end of the card block (204); the card block (204) passes through the base (201) and is slidably connected to the base (201).

4. The junction box of an explosion-proof switched reluctance motor according to claim 1, characterized in that: The limit plate (206) is slidably connected to the base (201), and the bidirectional screw (209) and the knob (210) are both rotatably connected to the base (201).

5. The junction box of an explosion-proof switched reluctance motor according to claim 1, characterized in that: The support rods (207) and the sliders (208) are each provided with two, and the two support rods (207) and the sliders (208) are symmetrically distributed on both sides of the bidirectional screw rod (209), and the sliders (208) are slidably connected to the base (201).

6. The junction box of an explosion-proof switched reluctance motor according to claim 2, characterized in that: The guide rail (301) is fixedly connected to the upper wiring port of the junction box body (1), and a slot adapted to the cover plate (305) is provided at the left end of the guide rail (301).

7. The junction box of an explosion-proof switched reluctance motor according to claim 2, characterized in that: The button (304) is hinged to the slide bar (302), and a protrusion (306) is fixedly connected to the upper end of the button (304).

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