CN215645595U

CN215645595U - Switch board that ground connection is good

Info

Publication number: CN215645595U
Application number: CN202121917375.6U
Authority: CN
Inventors: 梁双定
Original assignee: Jiangmen Flourishing Transmission And Distribution Equipment Co ltd
Current assignee: Jiangmen Flourishing Transmission And Distribution Equipment Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-01-25
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses a power distribution cabinet with good grounding, which comprises a cabinet body, a plurality of cabinet doors connected with the cabinet body and a plurality of metal wires, wherein the cabinet body is provided with a plurality of mounting units, the mounting units are used for mounting electronic elements, the cabinet body is provided with a grounding bar, the grounding bar is in conductive connection with the cabinet body, and the grounding bar is connected with a plurality of grounding bolts; the cabinet doors correspond to the mounting units one by one, and the cabinet doors can close or open the mounting units; the metal wire and the cabinet door correspond to each other one by one, one end of the metal wire is connected with the cabinet body in a conduction mode, and the other end of the metal wire is connected with the cabinet door in a conduction mode. The utility model has good integral grounding effect and high safety performance.

Description

Switch board that ground connection is good

Technical Field

The utility model relates to the technical field of power equipment, in particular to a power distribution cabinet with good grounding.

Background

The power distribution cabinet is suitable for industries such as power plants, petroleum, chemical industry, metallurgy, textile, high-rise buildings and the like, and is used for power transmission, power distribution and electric energy conversion. Along with the development of society and the progress of science and technology, people also attach more and more importance to the safety of using the switch board, and the electromagnetic field intensity is unusual probably to appear in the switch board, perhaps the voltage between the phase line appears unusually, and this all can bring certain threat to equipment or personnel's safety. The existing power distribution cabinet is simple in grounding process, and in case of electric leakage, workers are easily subjected to electric shock, so that potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the power distribution cabinet with good grounding is provided, the overall grounding effect is good, and the safety performance is high.

According to the embodiment of the utility model, the power distribution cabinet with good grounding comprises: the electronic component mounting device comprises a cabinet body, a plurality of mounting units and a plurality of grounding bolts, wherein the mounting units are used for mounting electronic components; the cabinet doors are connected with the cabinet body, the cabinet doors correspond to the mounting units one by one, and the cabinet doors can close or open the mounting units; the metal wires are in one-to-one correspondence with the cabinet door, one ends of the metal wires are in conduction connection with the cabinet body, and the other ends of the metal wires are in conduction connection with the cabinet door.

The technical scheme at least has the following beneficial effects: every cabinet door and cabinet body turn-on connection through metal wire, and the cabinet body is arranged with the ground connection and is led to be connected, simultaneously, electronic component's in the installation unit ground wire can insert the ground connection and arrange and through the fastening of earth bolt, consequently, arrange the ground connection through will earthing, can make cabinet door and switch board whole ground connection, and the ground connection is effectual, can prevent on the one hand that static from gathering, and on the other hand can prevent that the switch board is electrified and endanger personal safety, and the security performance is high.

According to some embodiments of the utility model, the metal wire is provided with an insulating sheath on an outer side thereof.

According to some embodiments of the utility model, the metal wire is arranged in a helical structure.

According to some embodiments of the present invention, the cabinet door is provided with press-riveting screws, two ends of the metal wire are respectively connected with a connection terminal, one of the connection terminals is connected to the press-riveting screw and fastened to the cabinet door through a grounding nut, and the other of the connection terminals is fastened to the cabinet body through a fastening screw.

According to some embodiments of the utility model, the rivet pressing screw is further connected with an elastic pad, one side of the elastic pad abuts against the connection terminal connected to the rivet pressing screw, and the other side of the elastic pad abuts against the grounding nut.

According to some embodiments of the utility model, the terminal comprises a crimping portion and a fixing portion, the fixing portion is connected with the crimping portion, the crimping portion comprises a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are matched and clamped on the end portion of the metal wire, and the fixing portion is connected with the riveting screw or the fastening screw.

According to some embodiments of the utility model, the inner side walls of the first and second clamping plates are each provided with a stud.

According to some embodiments of the utility model, the fixing portion is provided as a circular ring structure through which the clinch screw or the fastening screw is inserted.

According to some embodiments of the utility model, a surface of the ground bar is plated with a nickel plating layer.

According to some embodiments of the utility model, the cabinet door is provided with a heat dissipating grid.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a power distribution cabinet in an embodiment of the present invention;

FIG. 2 is an enlarged view of A in FIG. 1;

FIG. 3 is a schematic view of the connection between a cabinet door and a metal wire according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a connection terminal in an embodiment of the utility model.

Reference numerals:

a cabinet 100; a mounting unit 110; a ground bar 120; an insulating column 130; a ground bolt 140; a fastening screw 150;

a cabinet door 200; a clinch screw 210; a ground nut 220; a spring washer 230; a heat dissipation grid 240;

a metal wire 300; a connection terminal 310; a crimping portion 311; a first grip plate 3111; a second grip plate 3112; the non-slip protrusions 3113; a fixing portion 312.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 and 2, an embodiment of the present invention provides a power distribution cabinet with good grounding, including a cabinet body 100 and a cabinet door 200 connected to the cabinet body 100.

In some embodiments, the cabinet 100 is provided with a plurality of mounting units 110, specifically, the cabinet 100 is provided with three mounting units 110, of course, the number of the mounting units 110 can also be four, five or more, specifically, according to the actual situation, the three mounting units 110 are arranged from top to bottom, the mounting units 110 provide mounting spaces for electronic components, and various electronic components are mounted in each mounting unit 110 according to the electrical layout; the cabinet doors 200 are connected to the cabinet body 100 by hinges (not shown in the drawings), the number of the cabinet doors 200 corresponds to the number of the mounting units 110, that is, three cabinet doors 200 are provided, and each cabinet door 200 corresponds to one mounting unit 110, so that the mounting units 110 can be closed or opened by rotating the cabinet doors 200, the electrical safety is ensured, and the electronic components are conveniently mounted, of course, one cabinet door 200 penetrating from top to bottom can be provided, and the three mounting units 110 are closed or opened at the same time; a metal wire 300 is connected between each cabinet door 200 and the cabinet body 100, one end of each metal wire 300 is connected with the cabinet body 100 in a conduction manner, and the other end of each metal wire 300 is connected with the corresponding cabinet door 200 in a conduction manner, so that the cabinet body 100 and the cabinet doors 200 are kept at the same potential; the grounding bar 120 is disposed at the lower end of the cabinet 100, the grounding bar 120 is a copper bar, two ends of the grounding bar 120 are respectively and fixedly mounted on the cabinet 100 through insulating posts 130, generally speaking, the grounding bar 120 is connected to the cabinet 100 through a ground wire, so that the cabinet 100 is conducted with the grounding bar 120, that is, the cabinet 100 and the grounding bar 120 maintain an equipotential, so that the cabinet door 200, the cabinet 100 and the grounding bar 120 maintain an equipotential, the grounding bar 120 is connected to a plurality of grounding bolts 140, and the ground wire of the electronic component in the mounting unit 110 can be connected to the grounding bar 120 and fastened through the grounding bolts 140.

Consequently, when using, only need arrange 120 ground connection with ground connection, can make the whole ground connection of cabinet door 200 and switch board, the switch board is whole to be the equipotential with the ground, realizes protecting the ground connection, and the ground connection is effectual, prevents static accumulation on the one hand, and on the other hand prevents that the switch board is electrified and endangers personal safety, and the security performance is high.

In some embodiments, an insulating sleeve (not shown) is sleeved outside the metal wire 300, and the insulating sleeve is generally configured as a plastic sleeve, so as to protect the metal wire 300 to prevent the metal wire 300 from being scratched and causing failure, and to prevent the metal wire 300 from being electrically shocked due to too close distance to a circuit in the installation unit 110 when the cabinet door 200 is closed, thereby improving safety.

Referring to fig. 2, in some embodiments, the metal wire 300 is set to be a spiral structure, so that the metal wire 300 is reserved with a certain length to open the cabinet door 200, and since the spiral structure has a certain elasticity, and the elastic strain force is better, the metal wire 300 can be prevented from being fatigue-damaged or even broken due to pulling by external force or being bent often at a fixed point, and the metal wire 300 can be prevented from being clamped when the cabinet door 200 is closed, and meanwhile, the spiral structure is more attractive.

Referring to fig. 2 and 3, in some embodiments, the cabinet door 200 is provided with a rivet pressing screw 210, the rivet pressing screw 210 is located near a side of the cabinet door 200 where the hinge is connected, a side of the cabinet body 100 where the hinge is connected is provided with a screw hole (not shown), the screw hole is connected with a fastening screw 150, two ends of the metal wire 300 are respectively connected with a connection terminal 310, one connection terminal 310 is connected with the rivet pressing screw 210 and is tightly pressed and fixed to the cabinet door 200 through a grounding nut 220, so that the connection terminal 310 is in good contact with the cabinet door 200 and has good conductivity, the other connection terminal 310 is connected with the fastening screw 150 and is tightly pressed and fixed to the cabinet body 100 through tightening the fastening screw 150, so that the connection terminal 310 is in good contact with the cabinet body 100 and has good conductivity, and therefore, the cabinet door 200 and the cabinet body 100 maintain the same electric potential, so that the power distribution cabinet is integrally grounded, and the metal wire 300 is convenient to replace. Of course, it can be understood that the connection mode between the cabinet door 200 and the connection terminal 310 and the connection mode between the cabinet body 100 and the connection terminal 310 may be one of the two modes, or other connection modes that enable the connection terminal 310 to be in good contact with the cabinet door 200 or the cabinet body 100, and details are not repeated herein.

Referring to fig. 3, in some embodiments, the rivet pressing screw 210 is further connected with an elastic pad 230, one side of the elastic pad 230 abuts against the connection terminal 310 connected to the rivet pressing screw 210, and the other side of the elastic pad 230 abuts against the grounding nut 220, after the grounding nut 220 is tightened, the elastic pad 230 can prevent the grounding nut 220 from loosening, so as to avoid the failure of the metal wire 300 due to poor contact between the connection terminal 310 and the cabinet door 200, and improve grounding reliability.

Referring to fig. 3 and 4, in some embodiments, the connection terminal 310 includes a press-connection portion 311 and a fixing portion 312, the fixing portion is connected to the press-fit portion 311, the fixing portion 312 is connected to the press-riveting screw 210 or the fastening screw 150 to be conductively connected to the cabinet door 200 or the cabinet body 100, the press-connection portion 311 includes a first clamping plate 3111 and a second clamping plate 3112, the first clamping plate 3111 and the second clamping plate 3112 are disposed opposite to each other, a receiving cavity (not shown) for receiving an end of the metal wire 300 is formed between the first clamping plate 3111 and the second clamping plate 3112, when assembling, the first clamping plate 3111 and the second clamping plate 3112 are matched to clamp the end of the metal wire 300 by using a tool such as pliers, so as to connect the connection terminal 310 to the metal wire 300, and the connection terminal 310 has a large contact area with the metal wire 300, good contact, good conductivity, and the connection terminal 310 is not easy to fall off, so as to improve grounding reliability, meanwhile, the assembly is convenient, and the production efficiency is improved.

Referring to fig. 4, in some embodiments, the inner side walls of the first clamping plate 3111 and the second clamping plate 3112 are both provided with an anti-slip protrusion 3113, and when the first clamping plate 3111 and the second clamping plate 3112 are fitted to clamp the end of the metal wire 300, the anti-slip protrusion 3113 can effectively prevent the metal wire 300 from falling off due to slipping and causing a grounding failure, so that the connection terminal 310 can be in good contact with the metal wire 300, and the grounding reliability is further improved.

Referring to fig. 4, in some embodiments, the fixing portion is configured to be a circular ring structure, when the fixing portion is installed, the rivet pressing screw 210 is inserted into the circular ring structure of one of the connection terminals 310, the fastening screw 150 is inserted into the circular ring structure of the other connection terminal 310, and the circular ring structure is a closed structure, so that the metal wire 300 can be effectively prevented from falling off and failing, and the grounding reliability can be improved.

In some embodiments, the surface of the ground bar 120 is plated with a nickel plating layer, which can effectively prevent the surface of the ground bar 120 from being oxidized, improve the hardness and wear resistance of the ground bar 120, and provide a protective effect, and provide a more beautiful appearance.

Referring to fig. 1, in some embodiments, a heat dissipation grid 240 is disposed at the front end of the cabinet door 200, so as to facilitate heat dissipation of electronic components in the installation unit 110 during operation, and avoid heat accumulation from affecting normal use of the power distribution cabinet.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. The utility model provides a switch board that ground connection is good, its characterized in that includes:

the electronic component mounting device comprises a cabinet body, a plurality of mounting units and a plurality of grounding bolts, wherein the mounting units are used for mounting electronic components;

the cabinet doors are connected with the cabinet body, the cabinet doors correspond to the mounting units one by one, and the cabinet doors can close or open the mounting units;

the metal wires are in one-to-one correspondence with the cabinet door, one ends of the metal wires are in conduction connection with the cabinet body, and the other ends of the metal wires are in conduction connection with the cabinet door.

2. The power distribution cabinet with good grounding according to claim 1, characterized in that: and an insulating sleeve is arranged on the outer side of the metal wire.

3. The power distribution cabinet with good grounding according to claim 1, characterized in that: the metal wire is arranged into a spiral structure.

4. The power distribution cabinet with good grounding according to claim 1, characterized in that: the cabinet door is provided with press riveting screws, two ends of the metal wire are respectively connected with a wiring terminal, one wiring terminal is connected with the press riveting screw and fastened on the cabinet door through a grounding nut, and the other wiring terminal is fastened on the cabinet body through a fastening screw.

5. The switch board that ground connection is good of claim 4, its characterized in that: the pressure riveting screw is further connected with an elastic pad, one side of the elastic pad is abutted to the wiring terminal connected to the pressure riveting screw, and the other side of the elastic pad is abutted to the grounding nut.

6. The switch board that ground connection is good of claim 4, its characterized in that: the connecting terminal comprises a crimping part and a fixing part, the fixing part is connected with the crimping part, the crimping part comprises a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are matched and clamped at the end part of the metal wire, and the fixing part is connected with the press riveting screw or the fastening screw.

7. The switch board that ground connection is good of claim 6, its characterized in that: the inside wall of first grip block with the second grip block all is provided with the non-skid stud.

8. The switch board that ground connection is good of claim 6, its characterized in that: the fixing part is of a circular ring structure, and the press riveting screw or the fastening screw penetrates through the circular ring structure.

9. The power distribution cabinet with good grounding according to claim 1, characterized in that: and the surface of the grounding bar is plated with a nickel plating layer.

10. The power distribution cabinet with good grounding according to claim 1, characterized in that: the cabinet door is provided with a heat dissipation grid.