Protective low-voltage distribution box

By designing protective components and combined components in the low-voltage distribution box, the problems of false touch and debris entry caused by the failure of anti-fault-proof components in the low-voltage distribution box are solved, and the safety and stability of the electric box are achieved.

CN222654623UActive Publication Date: 2025-03-21LANGFANG KUNYOU ELECTRICL SYST CO LTD
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Patent Information

Application Number
CN202420351156.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-26
Publication Date
2025-03-21
Estimated Expiration
2034-02-26

AI Technical Summary

Technical Problem

During use, the existing low-voltage distribution box is not equipped with anti-fault contact components, and the box is easily opened due to accidental touch, causing the box to be opened due to accidental touch and electric shock. During heat dissipation, external debris can easily enter, affecting the operation of electrical equipment.

Method used

A protective low-voltage distribution box is designed, using protective components and combination components, including a closed cover plate, a engaging limit box, a restriction spring, a fixed support box, a special-shaped engaging block, a lifting spring, a engaging frame, a cooling hole, an inlet and exit protection box, a diversion fan, an isolation mesh plate and an oblique barrier box. Through the design of these components, the electrical box is prevented from accidentally touching and debris entering.

Benefits of technology

It effectively avoids electric shock caused by accidental contact, prevents external debris from entering the electric box, ensures stable operation of power supply of internal equipment, reduces operation cumbersomeness, and accelerates installation and replacement speed.

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Abstract

The utility model discloses a protective low-voltage distribution box, and relates to the technical field of low-voltage distribution boxes, one end of a fixed supporting box is symmetrically hinged with closed cover plates, the top end and the bottom end of the inner side of the fixed supporting box are rotatably connected with clamping limiting boxes, and one end of each clamping limiting box is symmetrically and fixedly connected with limiting springs; one ends of the two limiting springs are connected with a fixed supporting box, the side end of the fixed supporting box is rotationally connected with a special-shaped clamping block, and a lifting spring is installed at the position, corresponding to the special-shaped clamping block, of one end of the closing cover plate. And the top end and the bottom end of the box body are protected through the inlet and outlet protection box and the inclined blocking box, and air inlet and outlet at the bottom end are used for limiting protection, so that the situation that sundries are discharged from the top end and appear in the box body is reduced, and stable operation of power supply of internal equipment is ensured.
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Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage distribution boxes, in particular to a protective low-voltage distribution box. Background Art

[0002] The rated current of the low-voltage distribution cabinet is AC 50Hz, and the rated voltage is 380v. The distribution system is used for power conversion and control of power, lighting and distribution. This product has the characteristics of strong breaking capacity, good dynamic thermal stability, flexible electrical scheme, convenient combination, strong series and practicality, and novel structure.

[0003] However, when the low-voltage distribution box is used now, because the closed door of the box is not equipped with an anti-accidental touch component, it is easy for the box to be opened due to accidental touch during the placement process, which may lead to accidental touch and electric shock. In addition, foreign debris can easily enter during heat dissipation, causing debris to appear inside and affecting the operation of electrical equipment. Utility Model Content

[0004] The utility model provides a protective low-voltage distribution box, which can effectively solve the problem raised in the above background technology that when the current low-voltage distribution box is used, because the closed door of the box body is not provided with an anti-mistaken-touch component, it is easy for the box body to be opened due to accidental touch during the placement process, which may lead to accidental touch and electric shock, and foreign debris may easily enter during heat dissipation, causing debris to appear inside and affecting the operation of electrical equipment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a protective low-voltage distribution box, comprising a fixed support box, a protective assembly is arranged inside the fixed support box, and the protective assembly comprises a closing cover, a clamping limit box, a limiting spring, a fixed support box, a special-shaped clamping block, a lifting spring, a sleeve clamping frame, a cooling hole, an inlet and outlet protection box, a guide fan, an isolation mesh plate and an oblique baffle box;

[0006] The fixed support box is symmetrically hinged with a closing cover plate at one end, and the top and bottom ends of the inner side of the fixed support box are rotatably connected to a locking limit box, one end of the locking limit box is symmetrically fixedly connected to a limiting spring, one end of two limiting springs are connected to the fixed support box, and the side end of the fixed support box is rotatably connected to a special-shaped locking block, and a lifting spring is installed at the position of the special-shaped locking block at one end of the closed cover plate, and a sleeve locking frame is connected at one end of the two lifting springs corresponding to the position of the special-shaped locking block. Cooling holes are opened at the top and bottom of the fixed support box, and entry and exit protection boxes are installed at the top and bottom of the fixed support box. A guide fan is equidistantly embedded and installed on the side ends of the entry and exit protection box, and an isolation mesh plate is installed at one end of the inner side of the entry and exit protection box near the position of the guide fan, and one end of the entry and exit protection box is fixedly connected to a slanted baffle box.

[0007] According to the above technical solution, the fixed support box and the locking limit box are slidably fitted together, and the special-shaped locking block is fitted into the locking frame.

[0008] According to the above technical solution, the special-shaped snap-fit ​​block is fitted with the closing cover plate, and the inserted snap-fit ​​frame is slidably installed on the side end of the closing cover plate.

[0009] According to the above technical solution, the longitudinal section of the cooling hole is a parallelogram, and the longitudinal section of the oblique baffle box is a triangle.

[0010] According to the above technical solution, a combination component is provided at the side end of the fixed support box, and the combination component includes a T-shaped support bar, a limit spring, a limit combination bar, a limit screw, a support sleeve block and a support operating rod;

[0011] A number of T-shaped support bars are equidistantly installed on the inner side of the fixed support box, a number of limit springs are equidistantly installed at the positions of the T-shaped support bars on the inner side of the fixed support box, one end of the limit springs is connected to the limit combination bar, a number of limit screws are equidistantly installed on both ends of the fixed support box, one end of the limit screws is rotatably connected to a support sleeve block, and a support operating rod is welded to one end of the support sleeve block.

[0012] According to the above technical solution, the limit assembly bar is slidably installed on the side end of the T-shaped support bar, and the support operating rod is installed through the side end of the fixed support box.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a scientific and reasonable structure and is safe and convenient to use:

[0014] 1. A protective component is provided, which is driven by a lifting spring to insert a snap-fit ​​frame and embed into the side end of the special-shaped snap-fit ​​block, and the limiting spring drives the fixed support box to be clamped and sleeved with the snap-fit ​​limit box to realize the closed limit of the fixed support box and the closed cover plate, and the multi-position simultaneous limit blocking is used to prevent accidental opening after the electric box is closed, thereby realizing protection of the inside and outside of the electric box and reducing the occurrence of electric shock caused by accidental touch. The top and bottom of the box are protected by the inlet and outlet protection box and the oblique baffle box, and the bottom inlet and outlet air limit protection is used to reduce the discharge of debris from the top, which causes debris to appear inside the box, thereby ensuring the stable operation of the power supply to the internal equipment.

[0015] 2. A combination component is provided, and the limit spring drives the limit combination bar to fit to the side end of the electrical appliance. The T-shaped support bar and the limit combination bar are connected by snap-fitting to realize the rapid fixing operation of the electrical appliance, which is convenient for steady support and positioning. The limit screw drives the support sleeve block to slide along the support operating rod, so that the support sleeve block is fitted to the side end of the electrical appliance, and the electrical appliance is fixed, so that the electrical appliance can be quickly operated during fixed installation and disassembly, which reduces the tediousness of operation and speeds up installation and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0017] In the attached picture:

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the protection component of the utility model;

[0020] Figure 3 It is a schematic diagram of the installation structure of the limiting spring of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the combined components of the utility model;

[0022] Numbers in the figure: 1. Fixed support box;

[0023] 2. Protective components; 201. Closing cover; 202. Clamping limit box; 203. Limiting spring; 204. Fixed support box; 205. Special-shaped clamping block; 206. Lifting spring; 207. Inserting the clamping frame; 208. Cooling hole; 209. In and out of the protective box; 210. Guide fan; 211. Isolation mesh plate; 212. Oblique baffle box;

[0024] 3. Combination assembly; 301. T-shaped support bar; 302. Limit spring; 303. Limit combination bar; 304. Limit screw; 305. Support sleeve block; 306. Support operating rod. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0026] Example: Figure 1-4 As shown, the utility model provides a technical solution, a protective low-voltage distribution box, including a fixed support box 1, a protective assembly 2 is arranged inside the fixed support box 1, and the protective assembly 2 includes a closing cover 201, a clamping limit box 202, a limiting spring 203, a fixed support box 204, a special-shaped clamping block 205, a lifting spring 206, a sleeve clamping frame 207, a cooling hole 208, an inlet and outlet protection box 209, a guide fan 210, an isolation mesh plate 211 and an oblique baffle box 212;

[0027] A closing cover 201 is symmetrically hinged at one end of the fixed support box 1, and a locking limit box 202 is rotatably connected to the top and bottom ends of the inner side of the fixed support box 1. A limiting spring 203 is symmetrically fixedly connected to one end of the locking limit box 202. One end of the two limiting springs 203 is connected to a fixed support box 204. The fixed support box 204 is slidably fitted with the locking limit box 202, so that it can be operated steadily during the support linkage. The side end of the fixed support box 204 is rotatably connected with a special-shaped locking block 205, which is fitted with the closing cover 201 and is inserted into the locking frame 207 and slidably installed on the side end of the closing cover 201, so that the operation can be switched steadily during the sliding combination and disengagement operations. A lifting spring 206 is installed at one end of the closing cover 201 corresponding to the position of the special-shaped locking block 205. One end of the lowering spring 206 is connected to a sleeve snap-fit ​​frame 207 at the position corresponding to the special-shaped snap-fit ​​block 205. The special-shaped snap-fit ​​block 205 is sleeved with the sleeve snap-fit ​​frame 207 to ensure the effect of solidification limiting. Cooling holes 208 are opened at the top and bottom of the fixed support box 1. Entry and exit protection boxes 209 are installed at the top and bottom of the fixed support box 1. Guide fans 210 are equidistantly embedded and installed on the side ends of the entry and exit protection boxes 209. An isolation mesh plate 211 is installed at one end of the inner side of the entry and exit protection box 209 near the position of the guide fan 210. One end of the entry and exit protection box 209 is fixedly connected to an oblique baffle box 212. The longitudinal section of the cooling hole 208 is a parallelogram, and the longitudinal section of the oblique baffle box 212 is a triangle, so that steady operation can be achieved during intake cooling and external protection, reducing the impact of debris on internal cooling.

[0028] A combination assembly 3 is provided at the side end of the fixed support box 1, and the combination assembly 3 includes a T-shaped support bar 301, a limit spring 302, a limit combination bar 303, a limit screw 304, a support sleeve block 305 and a support operating rod 306;

[0029] A number of T-shaped support bars 301 are equidistantly installed on the inner side of the fixed support box 1, and a number of limit springs 302 are equidistantly installed at the positions of the T-shaped support bars 301 on the inner side of the fixed support box 1. One end of the limit springs 302 is connected to a limit combination bar 303, and the limit combination bar 303 is slidably installed on the side end of the T-shaped support bar 301, so that the support can be steadily positioned during the movement. A number of limit screws 304 are equidistantly installed on both ends of the fixed support box 1, and one end of the limit screw 304 is rotatably connected to a support sleeve block 305, and one end of the support sleeve block 305 is welded with a support operating rod 306, which is installed through the side end of the fixed support box 1 to ensure the stability of the limit support and the guide.

[0030] The working principle and use process of the utility model are as follows: when the distribution box is used, the lifting spring 206 drives the inserted snap-fit ​​frame 207 to be embedded into the side end of the special-shaped snap-fit ​​block 205, and the special-shaped snap-fit ​​block 205 is snap-fitted and connected with the closing cover 201, and the limiting spring 203 drives the fixed support box 204 to be snap-fitted and sleeved with the snap-fit ​​limit box 202, and the snap-fit ​​limit box 202 is used to rotate along the fixed support box 1, and at the same time, the fixed support box 204 rotates along the closing cover 201, so that the fixed support box 1 and the closing cover 201 are closed, so that After the electric box is closed, it can avoid accidental opening and accidental operation by personnel, realize protection of the inside and outside of the electric box, and reduce the occurrence of electric shock caused by accidental touch. The top and bottom of the box are protected by the inlet and outlet protection box 209 and the oblique baffle box 212. The air is inlet and outlet at the bottom to reduce the discharge of debris from the top to the bottom, which causes the appearance of debris inside the box. The isolation mesh plate 211 is used for protection and blocking to further reduce slag and ensure the cleanliness of the interior. The cooling treatment is carried out by the guide fan 210 to ensure the stable operation of the power supply of the internal equipment.

[0031] The electrical device is placed at the position of the T-shaped support bar 301, and the limit spring 302 drives the limit assembly bar 303 to fit the side end of the electrical device. The T-shaped support bar 301 and the limit assembly bar 303 are connected by snapping together to realize the quick fixing operation of the electrical device. The limit screw 304 drives the support sleeve block 305 to slide along the support operating rod 306, so that the support sleeve block 305 is fitted to the side end of the electrical device, and the electrical device is fixed, so that the electrical device can be quickly operated during installation and removal, which reduces the complexity of operation and speeds up installation and replacement.

[0032] Finally, it should be noted that the above description is only a preferred example of the present utility model and is not intended to limit the present utility model. Although the present utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A protective low-voltage distribution box, comprising a fixed support box (1), characterized in that: A protection assembly (2) is arranged inside the fixed support box (1), and the protection assembly (2) comprises a closing cover plate (201), a locking limit box (202), a limiting spring (203), a fixed support box (204), a special-shaped locking block (205), a lifting spring (206), a sleeve locking frame (207), a cooling hole (208), an inlet and outlet protection box (209), a guide fan (210), an isolation mesh plate (211) and a slanted baffle box (212); A closing cover plate (201) is symmetrically hinged at one end of the fixed support box (1); a locking limit box (202) is rotatably connected to the top and bottom ends of the inner side of the fixed support box (1); a limiting spring (203) is symmetrically fixedly connected to one end of the locking limit box (202); one end of the two limiting springs (203) is connected to a fixed support box (204); a side end of the fixed support box (204) is rotatably connected to a special-shaped locking block (205); a lifting spring (206) is installed at one end of the closing cover plate (201) at a position corresponding to the special-shaped locking block (205); the two lifting springs (206) are symmetrically fixedly connected to one end of the locking limit box (202); One end of the spring (206) is connected to a sleeve-engaging frame (207) at a position corresponding to the special-shaped engaging block (205); the top and bottom ends of the fixed support box (1) are provided with cooling holes (208); the top and bottom ends of the fixed support box (1) are provided with entry and exit protection boxes (209); the side ends of the entry and exit protection boxes (209) are equidistantly embedded with guide fans (210); an isolation mesh plate (211) is installed at one end of the inner side of the entry and exit protection box (209) near the position of the guide fan (210); and one end of the entry and exit protection box (209) is fixedly connected with an oblique baffle box (212).

2. A protective low-voltage distribution box according to claim 1, characterized in that: The fixed support box (204) is slidably fitted with the locking limit box (202), and the special-shaped locking block (205) is fitted with the inserted locking frame (207).

3. A protective low-voltage distribution box according to claim 1, characterized in that: The special-shaped snap-fit ​​block (205) is fitted with the closing cover plate (201), and the inserted snap-fit ​​frame (207) is slidably mounted on the side end of the closing cover plate (201).

4. A protective low-voltage distribution box according to claim 1, characterized in that: The longitudinal section of the cooling hole (208) is a parallelogram, and the longitudinal section of the oblique baffle box (212) is a triangle.

5. A protective low-voltage distribution box according to claim 1, characterized in that: A combination assembly (3) is provided at the side end of the fixed support box (1), and the combination assembly (3) comprises a T-shaped support bar (301), a limit spring (302), a limit assembly bar (303), a limit screw (304), a support sleeve block (305) and a support operating rod (306); A plurality of T-shaped support bars (301) are equidistantly installed on the inner side of the fixed support box (1); a plurality of limit springs (302) are equidistantly installed at positions on the inner side of the fixed support box (1) corresponding to the T-shaped support bars (301); one end of each of the limit springs (302) is connected to a limit combination bar (303); a plurality of limit screws (304) are equidistantly installed at both ends of the fixed support box (1); one end of each of the limit screws (304) is rotatably connected to a support sleeve block (305); and one end of each of the support sleeve block (305) is welded to a support operating rod (306).

6. A protective low-voltage distribution box according to claim 5, characterized in that: The limiting assembly bar (303) is slidably mounted on the side end of the T-shaped support bar (301), and the support operating rod (306) is penetrated and mounted on the side end of the fixed support box (1).