CN215009046U - Electrical protection device of low-voltage switch equipment - Google Patents

Electrical protection device of low-voltage switch equipment Download PDF

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Publication number
CN215009046U
CN215009046U CN202121301132.XU CN202121301132U CN215009046U CN 215009046 U CN215009046 U CN 215009046U CN 202121301132 U CN202121301132 U CN 202121301132U CN 215009046 U CN215009046 U CN 215009046U
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CN
China
Prior art keywords
low
protection device
protection box
telescopic rod
insulating telescopic
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Active
Application number
CN202121301132.XU
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Chinese (zh)
Inventor
李飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Aisikai Electric Co ltd
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Jiangsu Aisikai Electric Co ltd
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Priority to CN202121301132.XU priority Critical patent/CN215009046U/en
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Abstract

The utility model relates to the technical field of low-voltage switch equipment, in particular to an electrical protection device of low-voltage switch equipment, which comprises a switch cabinet, wherein the top of the switch cabinet is provided with a protection box, one side of the protection box is provided with a controller, the side wall of one side in the protection box is vertically provided with a chute, a slide block is arranged in the chute in a sliding way, one side of the slide block and the side wall of the other side in the protection box are respectively and horizontally provided with an insulating telescopic rod, the insulating telescopic rod at one side of the slide block is provided with a first conductive post, the insulating telescopic rod at the other side is provided with a second conductive post, the first conductive post and the second conductive post are contacted and electrified, and the first conductive column is electrically connected with the external connecting wire, and the second conductive column is electrically connected with the internal connecting wire, when the switch cabinet of the utility model is overloaded or short-circuited, the external connection and the internal connection can be quickly and automatically disconnected, and equipment damage after overload or short circuit of the switch cabinet is avoided.

Description

Electrical protection device of low-voltage switch equipment
Technical Field
The utility model relates to a low-voltage switchgear technical field especially relates to a low-voltage switchgear's electrical protection device.
Background
The low-voltage switch equipment is suitable for industries such as power plants, petroleum, chemical industry, metallurgy, textile, high-rise buildings and the like, is used for power transmission, power distribution and electric energy conversion, can cause the damage of electric equipment under the condition of overload or short circuit, and needs to be cut off in time to protect the electric equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcomings existing in the prior art and providing an electrical protection device of low-voltage switch equipment.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a low-voltage switchgear's electrical protection device, which comprises a switch cabinet, the top of cubical switchboard is provided with the guard box, one side of guard box is provided with the controller, the vertical spout of having seted up on the lateral wall of one side in the guard box, it is provided with the slider to slide in the spout, equal horizontal installation has insulating telescopic link on one side of slider and the lateral wall of other side in the guard box, install first leading electrical pillar on the insulating telescopic link of slider one side, install the second on the insulating telescopic link of opposite side and lead electrical pillar, first leading electrical pillar contacts the circular telegram with the second, and first leading electrical pillar is connected with the external connection electricity, the second leads electrical pillar and is connected with the internal connection electricity.
Preferably, the protective box is provided with an opening and closing door.
Preferably, the insulating telescopic link is made by insulating material, and insulating telescopic link includes pars contractilis and fixed part, and the pars contractilis slides and sets up in the fixed part, and passes through spring coupling between pars contractilis and the fixed part.
Preferably, when the insulating telescopic rods on the two sides are horizontally aligned, the first conductive column and the second conductive column are in top pressure contact.
Preferably, the bottom of spout is provided with the electromagnetism piece, and the electromagnetism piece is connected with the power electricity in the controller, and the controller is connected with switch signal of power.
Preferably, the sliding groove is a dovetail sliding groove, and the sliding groove is in sliding fit with the sliding block.
The utility model has the advantages that:
the utility model discloses in when the cubical switchboard overload or the short circuit condition appear, the circular telegram of controller control electromagnetism piece for the electromagnetism piece produces great magnetic force in the twinkling of an eye, and magnetic force produces the adsorption affinity to the slider, makes the slider glide fast in the spout, and the slider after the gliding drives first leading electrical pillar and the separation of leading electrical pillar of second, thereby makes external connection and internal connection disconnection, avoids the cubical switchboard to appear transshipping or damage equipment behind the short circuit.
Drawings
Fig. 1 is a schematic external structural view of an electrical protection device for a low-voltage switchgear according to the present invention;
fig. 2 is a schematic view of an internal structure of a protection box of an electrical protection device of a low-voltage switchgear according to the present invention during normal operation;
fig. 3 is a schematic structural view of the protection box in the electrical protection of the electrical protection device of the low-voltage switchgear according to the present invention;
fig. 4 is a schematic view of a connection structure of the sliding groove on the side wall of the protection box of the electrical protection device of the low-voltage switch device.
In the figure: the switch cabinet comprises a switch cabinet 1, a protection box 2, a controller 3, an opening and closing door 4, an external connecting wire 5, an internal connecting wire 6, a first conductive column 7, a second conductive column 8, an insulating telescopic rod 9, a sliding block 10, a sliding chute 11 and an electromagnetic block 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-4, an electrical protection device for low-voltage switch equipment comprises a switch cabinet 1, a protection box 2 is arranged at the top of the switch cabinet 1, and an opening and closing door 4 is installed on the protection box 2 and can be used for maintenance.
One side of guard box 2 is provided with controller 3, vertically on the lateral wall of one side in guard box 2 seted up spout 11, it is provided with slider 10 to slide in the spout 11, equal horizontal installation has insulating telescopic link 9 on the lateral wall of opposite side in one side of slider 10 and guard box 2, install first leading electrical pillar 7 on the insulating telescopic link 9 of slider 10 one side, installation second leads electrical pillar 8 on the insulating telescopic link 9 of opposite side, first leading electrical pillar 7 leads electrical pillar 8 with the second and contacts the circular telegram, and first leading electrical pillar 7 is connected with external connection 5 electricity, second leads electrical pillar 8 and is connected with internal connection 6 electricity.
Insulating telescopic link 9 is made by insulating material, and insulating telescopic link 9 includes pars contractilis and fixed part, and the pars contractilis slides and sets up in the fixed part, and through spring coupling between pars contractilis and the fixed part, when 9 levels of insulating telescopic link of both sides align, under the effect of the restoring force of spring, first lead electrical pillar 7 and second lead electrical pillar 8 roof pressure contact.
Spout 11 is the forked tail spout, and spout 11 and slider 10 sliding fit, the bottom of spout 11 are provided with electromagnetic block 12, can produce magnetic force after electromagnetic block 12 circular telegram and adsorb slider 10, and electromagnetic block 12 is connected with the power electricity in the controller 3, and controller 3 and switch electrical signal are connected, are provided with the singlechip that the model is AT89C51 in the controller.
In this embodiment, when the switch cabinet 1 normally operates, and the insulating telescopic links 9 on the two sides in the protection box 2 are horizontally aligned, under the action of the restoring force of the spring, the first conductive column 7 and the second conductive column 8 are in top pressure contact, and the first conductive column 7 and the second conductive column 8 are communicated and electrified, so that the external connection 5 is communicated with the internal connection 6, and the switch cabinet 1 normally operates.
When cubical switchboard 1 carries out electrical protection, when the overload or short circuit condition appear in cubical switchboard 1, 12 circular telegrams of controller 3 control electromagnetism piece, make electromagnetism piece 12 produce great magnetic force in the twinkling of an eye, magnetic force produces the adsorption affinity to slider 10, make slider 10 slide down fast in spout 11, slider 10 after the gliding drives first leading electrical pillar 7 and the separation of second leading electrical pillar 8, thereby make external connection 5 and the disconnection of internal connection 6, avoid cubical switchboard 1 to appear transshipping or damage equipment behind the short circuit.
When the maintenance is carried out, only the opening and closing door 4 needs to be opened, the electromagnetic block 12 is powered off, the sliding block 10 is reset, the insulating telescopic rods 9 on the two sides are horizontally aligned, the first conductive column 7 and the second conductive column 8 are pressed and contacted to immediately recover the electrification, and parts do not need to be replaced.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. An electrical protection device for low-voltage switchgear, comprising a switchgear cabinet (1) characterized in that, the top of the switch cabinet (1) is provided with a protection box (2), one side of the protection box (2) is provided with a controller (3), the side wall of one side in the protection box (2) is vertically provided with a chute (11), the chute (11) is internally provided with a slide block (10) in a sliding way, one side of the slide block (10) and the side wall of the other side in the protection box (2) are both horizontally provided with an insulating telescopic rod (9), the insulating telescopic rod (9) at one side of the slide block (10) is provided with a first conductive post (7), the insulating telescopic rod (9) at the other side is provided with a second conductive post (8), the first conductive post (7) is contacted with the second conductive post (8) for electrifying, the first conductive column (7) is electrically connected with the external connection line (5), and the second conductive column (8) is electrically connected with the internal connection line (6).
2. Electrical protection device for low-voltage switchgear apparatuses, according to claim 1, characterized in that said protection box (2) is equipped with a shutter (4).
3. An electrical protection device for low-voltage switchgear according to claim 1, characterized in that said insulating telescopic rod (9) is made of insulating material and the insulating telescopic rod (9) comprises a telescopic part and a fixed part, the telescopic part being slidably arranged in the fixed part and the telescopic part and the fixed part being connected by a spring.
4. The electrical protection device for low-voltage switchgear assemblies according to claim 1, characterized in that said first (7) and second (8) conductive posts are in pressing contact when said insulating telescopic rods (9) are horizontally aligned on both sides.
5. An electrical protection device for low-voltage switchgear, according to claim 1, characterized in that the bottom of said chute (11) is provided with an electromagnetic block (12), said electromagnetic block (12) being electrically connected to a power supply inside the controller (3), said controller (3) being electrically connected to a power switch.
6. Electrical protection device for low-voltage switchgear, according to claim 1, characterized in that said runner (11) is a dovetail runner, the runner (11) being in sliding engagement with the slider (10).
CN202121301132.XU 2021-06-10 2021-06-10 Electrical protection device of low-voltage switch equipment Active CN215009046U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121301132.XU CN215009046U (en) 2021-06-10 2021-06-10 Electrical protection device of low-voltage switch equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121301132.XU CN215009046U (en) 2021-06-10 2021-06-10 Electrical protection device of low-voltage switch equipment

Publications (1)

Publication Number Publication Date
CN215009046U true CN215009046U (en) 2021-12-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121301132.XU Active CN215009046U (en) 2021-06-10 2021-06-10 Electrical protection device of low-voltage switch equipment

Country Status (1)

Country Link
CN (1) CN215009046U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114188831A (en) * 2022-02-15 2022-03-15 山东万海电气科技有限公司 Low-voltage switch cabinet for circuit protection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114188831A (en) * 2022-02-15 2022-03-15 山东万海电气科技有限公司 Low-voltage switch cabinet for circuit protection

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