CN220122238U

CN220122238U - Power supply overvoltage protection device of distribution network automation equipment

Info

Publication number: CN220122238U
Application number: CN202321002311.2U
Authority: CN
Inventors: 周建; 李瑞萍; 陶涛; 柳发亮; 张涛; 普彦春; 李强; 王强
Original assignee: Yunnan Yuxi Zhong Hui Power Equipment LLC
Current assignee: Yunnan Yuxi Zhong Hui Power Equipment LLC
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-12-01
Anticipated expiration: 2033-04-28

Abstract

The utility model provides a power supply overvoltage protection device of distribution network automation equipment, which comprises: overvoltage protector body and terminal block; the wiring terminal comprises an insulating clamping block, at least one pair of symmetrically arranged conductive contacts and at least one pair of symmetrically arranged non-return blocks are arranged on the insulating clamping block, the non-return blocks are hinged to the insulating clamping block, a spring groove is formed in one side, close to the overvoltage protector body, of each non-return block, and a torsion spring is arranged in each spring groove. In the utility model, the conductive contact is provided with the latch and the copper nose groove, so that a single-core and multi-core wire can be clamped; the torsion spring is arranged in the non-return block, the wire is inserted into the wire and is pressed downwards, the insulating layer can be clamped, the wire is pulled more tightly after clamping, and the wire cannot fall off, so that the effect that multiple types of wires can be quickly disassembled and assembled and cannot fall off after being assembled is achieved.

Description

Power supply overvoltage protection device of distribution network automation equipment

Technical Field

The utility model relates to the field of automatic equipment protection, in particular to a power supply overvoltage protection device for distribution network automatic equipment.

Background

The overvoltage protection of the power supply is that an overvoltage protector is arranged on the power supply side, so that the overvoltage protector is safer when the automatic equipment is used after the overvoltage protector is arranged, and the overvoltage protector is connected with the power supply or other automatic equipment in a wire connection mode.

Because at present, no wiring terminal capable of rapidly disassembling and assembling and capable of clamping the insulating layer of the wire and preventing the insulating layer from falling off exists, when the overvoltage protector is disassembled and assembled, only the screw for fastening the wire can be unscrewed, then the wire is arranged below the screw, and finally the screw is screwed, so that the whole process is extremely complicated, and time and labor are wasted; the wires with a plurality of cores are difficult to fasten through the copper nose, so that the fastening effect is poor; the non-return structure is not provided, and when the lead is pulled by external force, the lead is easy to fall off, so that potential safety hazard is generated.

Disclosure of Invention

The utility model mainly aims to provide a power supply overvoltage protection device for distribution network automation equipment, and aims to solve the technical problems that multiple types of wires cannot be quickly assembled and disassembled and the wires are easy to fall off after being assembled in the prior art.

In order to achieve the above object, the present utility model provides a power supply overvoltage protection device for an automation device of a distribution network, including: overvoltage protector body and terminal block;

the wiring terminal comprises an insulating clamping block, a V-shaped opening is formed in the insulating clamping block, at least one pair of symmetrically arranged conductive contacts are arranged in the V-shaped opening, the section of each conductive contact is in a right trapezoid shape, at least one first spring shaft is arranged on the right-angle end face, a first spring is sleeved on the first spring shaft, a spring sleeve is arranged on the first spring, and the spring sleeve is fixedly connected with the insulating clamping block;

at least one pair of symmetrically arranged non-return blocks are further arranged in the V-shaped opening, the non-return blocks are hinged to the insulating clamping blocks, a spring groove is formed in one side, close to the overvoltage protector body, of each non-return block, and a torsion spring is arranged in each spring groove.

Further, binding post still includes the briquetting, fixed connection No. two spring shafts on the briquetting, no. two spring shafts are connected with the shell through the shifting pair, no. two spring is epaxial to be equipped with No. two springs.

Further, a latch is arranged on the end face of one side of the bevel edge of the conductive contact, a copper nose groove is further arranged on the end face of one side of the contact, which is close to the overvoltage protector, and the latch groove is equal to the copper nose groove in height.

Further, the non-return block is arranged on the insulating fixture block and provided with a notch which is in the same direction as the bevel edge of the V-shaped opening, the notch is arranged at an obtuse angle smaller than 180 degrees with the lower end face of the insulating fixture block, and the non-return block can rotate towards the direction close to the overvoltage protector but cannot rotate towards the direction far away from the overvoltage protector when not used after being arranged.

Further, the V-shaped small openings are also formed between each pair of the conductive contacts and each pair of the non-return blocks after symmetrical installation, and the angle of the V-shaped small openings between each pair of the conductive contacts is smaller than that between each pair of the non-return blocks.

Further, the overvoltage protector comprises a shell, a clamping plate component is arranged in the shell, an arc extinguishing system, a contact system and an electromagnetic release are clamped in the clamping plate component, the arc extinguishing system, the contact system and the electromagnetic release are electrically connected, and a display screen and an indicator lamp are further arranged on the shell.

Further, the shell is located the briquetting top department has seted up the hole, hole diameter slightly is greater than No. two spring shaft diameters, in No. two spring shaft through holes, be connected with the shell through the kinematic pair.

Further, the non-return block is made of an insulator.

The beneficial effects of the utility model are as follows:

according to the utility model, the pressing block is arranged above the lead through the second spring and the second spring shaft, the lead can be installed by lifting, and the lead can be pressed by putting down, so that the disassembly and the connection are convenient and quick; at least one pair of conductive contacts are arranged in the insulating fixture block, and a latch and a copper nose groove are arranged on the contacts, wherein the latch can clamp a single-core wire, and a plurality of wires can be clamped in the copper nose groove by connecting the copper nose with the copper nose; at least one pair of non-return blocks are arranged in the insulating clamping block, torsion springs are arranged in the non-return blocks, the wire is inserted into the wire and pressed downwards, the insulating layer can be clamped, the wire is pulled more tightly after clamping, and the wire cannot fall off, so that the technical effects that multiple types of wires can be quickly disassembled and assembled, and the wire cannot fall off after being assembled are achieved.

Drawings

FIG. 1 is a schematic view of a part of an insulating block of a terminal according to the present utility model;

FIG. 2 is a schematic view of the overall structure of the terminal of the present utility model;

FIG. 3 is a top view of the terminal of the present utility model;

FIG. 4 is a schematic diagram of the connection of the conductive contacts to a single conductor in accordance with the present utility model;

FIG. 5 is a schematic diagram of the connection of a conductive contact to a copper nose in accordance with the present utility model;

FIG. 6 is a schematic diagram of the overall connection structure of the present utility model;

fig. 7 is a schematic diagram of the overall structure of the present utility model.

Reference numerals illustrate:

10. the overvoltage protector, 101, the shell, 102, the clamping plate component, 103, the arc extinguishing system, 104, the contact system, 105, the electromagnetic release, 106, the display screen, 107 and the indicator lamp;

20. binding post, 201, insulating fixture block, 201a, V-arrangement mouth, 202, non return piece, 202a, spring groove, 203, conductive contact, 203a, latch, 203b, copper nose groove, 204, spring housing, 205, spring shaft, 206, spring, 207, spring shaft, 208, spring, 209, wire, 209a, guide core, 209b, insulating layer, 210, torsion spring, 211, briquetting, 211a, press port, 212, copper nose.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. Embodiments of the utility model and features of the embodiments may be combined with each other without conflict. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, "a plurality of" means two or more. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary that the combination of the technical solutions should be regarded as not existing when the combination of the technical solutions contradicts or cannot be realized on the basis of the realization of those skilled in the art.

Referring to fig. 1 to 7, the utility model provides a power supply overvoltage protection device for a distribution network automation device, which comprises: an overvoltage protector 10 body and a terminal block 20;

the wiring terminal 20 comprises an insulating clamping block 201, wherein a V-shaped opening 201a is formed in the insulating clamping block 201, at least one pair of symmetrically arranged conductive contacts 203 are arranged in the V-shaped opening 201a, the section of each conductive contact 203 is in a right trapezoid shape, at least one first spring shaft 205 is arranged on the right-angle end face, a first spring 206 is sleeved on the first spring shaft 205, a spring sleeve 204 is arranged on the first spring 206, and the spring sleeve 204 is fixedly connected with the insulating clamping block 201;

at least one pair of symmetrically arranged non-return blocks 202 are further arranged in the V-shaped opening 201a, the non-return blocks 202 are hinged to the insulating clamping blocks 201, a spring groove 202a is formed in one side, close to the overvoltage protector 10 body, of each non-return block 202, and a torsion spring 210 is arranged in each spring groove 202 a.

When the overvoltage protector is installed, a plurality of types of wires cannot be quickly assembled and disassembled, and cannot be prevented from falling off after being fastened; at least one pair of conductive contacts are arranged in the insulating fixture block, and a latch and a copper nose groove are arranged on the contacts, wherein the latch can clamp a single-core wire, and a plurality of wires can be clamped in the copper nose groove by connecting the copper nose with the copper nose; at least one pair of non-return blocks are arranged in the insulating clamping block, torsion springs are arranged in the non-return blocks, the wire is inserted into the wire and pressed downwards, the insulating layer can be clamped, the wire is pulled more tightly after clamping, and the wire cannot fall off, so that the technical effects that multiple types of wires can be quickly disassembled and assembled, and the wire cannot fall off after being assembled are achieved.

In an embodiment, as shown in fig. 2 or 3, the connection terminal 20 further includes a pressing block 211, the pressing block 211 is fixedly connected with a No. two spring shaft 207, the No. two spring shaft 207 is connected with the housing 101 through a moving pair, a No. two spring 208 is sleeved on the No. two spring shaft 207 and is used for rapidly disassembling and assembling the wire, and the pressing block is made of an insulator.

In an embodiment, as shown in fig. 1, 4 or 5, a latch 203a is disposed on an end surface of a bevel side of the conductive contact 203, a copper nose groove 203b is further disposed on an end surface of a side of the contact 203, which is close to the overvoltage protector 10, the latch 203a is equal to the copper nose groove 203b in height, the latch is used for limiting a single-core wire to slide, the copper nose groove is used for connecting a plurality of cores of wires, the plurality of cores of wires are clamped in the copper nose groove after being connected with the copper nose, the copper nose groove does not penetrate through the conductive contact and is used for adapting to the copper nose, the specific depth is not limited, the copper nose is obtained by buying the wire from a belt or a market, the specific model and specification are not limited, and the copper nose can be used for adapting to the wire.

In an embodiment, as shown in fig. 2 or 3, the notch in the same direction as the bevel edge of the V-shaped opening 201a is disposed at the position where the non-return block 202 is mounted on the insulating fixture block 201, the notch is disposed at an obtuse angle smaller than 180 degrees with the lower end surface of the insulating fixture block 201, when the non-return block 202 is not used after being mounted, the non-return block can rotate in a direction close to the overvoltage protector 10, but cannot rotate in a direction far away from the overvoltage protector 10, thus the non-return block is designed to be V-shaped, wires with different specifications can be clamped, the large diameter is clamped above the V-shaped opening, the small diameter is clamped below the V-shaped opening, meanwhile, the wires can be clamped by inserting and pressing downwards when the wires are dismounted, when the non-return block is pulled more tightly by external force, the wires can be prevented from falling off, and the wires can be easily taken out by inserting and lifting upwards when the wires are dismounted.

In an embodiment, as shown in fig. 6 and 7, the overvoltage protector 10 includes a housing 101, a card board component 102 is installed in the housing 101, an arc extinguishing system 103, a contact system 104 and an electromagnetic release 105 are clamped in the card board component 102, the arc extinguishing system 103, the contact system 104 and the electromagnetic release 105 are electrically connected, a display screen 106 and an indicator lamp 107 are further installed on the housing 101, the overvoltage protector is used for protecting a circuit or an automation device during overvoltage, the overvoltage protector can be purchased by a nakey, the model can be digital display overvoltage protector or digital display self-resetting overvoltage protector, the purchased protector includes related accessories such as an arc extinguishing system, a contact system and an electromagnetic release which are arranged in the housing, overvoltage protection is realized, the housing can be self-designed, a clamping rail and a wiring terminal installation port are cast or stamped into a whole, and can also be secondarily thermoplastic formed after being cut on the existing housing, and the molded is used for installing the wiring terminal.

In an embodiment, as shown in fig. 1 or 7, a hole is formed in the position of the housing 101 above the pressing block 211, the diameter of the hole is slightly larger than that of the second spring shaft 207, the second spring shaft 207 is connected with the housing 101 through a sliding pair in the penetrating hole, and in this way, when the second spring shaft is lifted, the compression spring and the clamping block are lifted, and when the spring is restored, the clamping block is pressed, so that the wire can be conveniently and rapidly disassembled and assembled, the diameter of the hole can be used in an adapting mode, and the design is not particularly limited.

In an embodiment, as shown in fig. 2 or 3, the non-return block 202 is made of an insulator, so that the design can prevent external objects from contacting the conductive contact or the guide core, and can prevent current from being transmitted to the clamping block during electric leakage, and can prevent electric shock risk during disassembly and assembly, thereby avoiding potential safety hazard in all aspects.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A distribution network automation equipment power overvoltage protection device, comprising: an overvoltage protector (10) body and a connecting terminal (20);

the method is characterized in that: the wiring terminal (20) comprises an insulating clamping block (201), wherein a V-shaped opening (201 a) is formed in the insulating clamping block (201), at least one pair of symmetrically arranged conductive contacts (203) are arranged in the V-shaped opening (201 a), the section of each conductive contact (203) is in a right trapezoid shape, at least one first spring shaft (205) is arranged on the right-angle end face, a first spring (206) is sleeved on the first spring shaft (205), a spring sleeve (204) is arranged on the first spring (206), and the spring sleeve (204) is fixedly connected with the insulating clamping block (201);

at least one pair of symmetrically arranged non-return blocks (202) are further arranged in the V-shaped opening (201 a), the non-return blocks (202) are hinged to the insulating clamping blocks (201), a spring groove (202 a) is formed in one side, close to the overvoltage protector (10), of the non-return blocks (202), and a torsion spring (210) is arranged in the spring groove (202 a).

2. The power overvoltage protection device for the distribution network automation equipment according to claim 1, wherein the wiring terminal (20) further comprises a pressing block (211), a second spring shaft (207) is fixedly connected to the pressing block (211), the second spring shaft (207) is connected with the shell (101) through a moving pair, and a second spring (208) is sleeved on the second spring shaft (207).

3. The overvoltage protection device for the power supply of the distribution network automation equipment according to claim 1, wherein a latch (203 a) is arranged on the end face of one side of the bevel edge of the conductive contact (203), a copper nose groove (203 b) is further arranged on the end face of one side of the contact (203) close to the overvoltage protector (10), and the height of the latch (203 a) is equal to that of the copper nose groove (203 b).

4. The overvoltage protection device for the power supply of the distribution network automation equipment according to claim 1, wherein a notch which is in the same direction with the bevel edge of the V-shaped opening (201 a) is arranged at the position where the non-return block (202) is arranged on the insulating clamping block (201), the notch is arranged at an obtuse angle which is smaller than 180 degrees with the lower end face of the insulating clamping block (201), and the non-return block (202) can rotate towards the direction close to the overvoltage protector (10) but cannot rotate towards the direction far away from the overvoltage protector (10) when not used after being arranged.

5. A distribution network automation equipment power overvoltage protection device according to claim 1 or 3, characterized in that the symmetrically installed pairs of conductive contacts (203) and the pairs of non-return blocks (202) also present V-shaped small openings, and the V-shaped small opening angle between the pairs of conductive contacts (203) is smaller than the V-shaped small opening angle between the pairs of non-return blocks (202).

6. A distribution network automation equipment power overvoltage protection device as claimed in claim 1 or 4, wherein the overvoltage protector (10) comprises a housing (101), a clamping plate component (102) is arranged in the housing (101), an arc extinguishing system (103), a contact system (104) and an electromagnetic release (105) are clamped in the clamping plate component (102), the arc extinguishing system (103), the contact system (104) and the electromagnetic release (105) are electrically connected, and a display screen (106) and an indicator lamp (107) are further arranged on the housing (101).

7. The power supply overvoltage protection device for the distribution network automation equipment according to claim 2, wherein the shell (101) is provided with a hole above the pressing block (211), the diameter of the hole is slightly larger than that of a second spring shaft (207), and the second spring shaft (207) is connected with the shell (101) through a moving pair in the through hole.

8. The overvoltage protection device for power distribution network automation equipment according to claim 6, wherein the non-return block (202) is made of an insulator.