Rolling contact for electrical engineering

Abstract

The utility model relates to the technical field of electrical contacts, and discloses a rolling contact for electrical engineering, which comprises a connecting block I. One side of the outer wall of the connecting block I is provided with a binding post, the connecting block I is provided with a limiting part, the limiting part comprises a spring I, the spring I is fixedly connected to the connecting block I, and the connecting block I is fixedly connected with the binding post. The extension end of the first spring is fixedly connected with a second connecting block, a limiting rod is fixedly installed on the second connecting block, and the extension end of the limiting rod is movably inserted into the first connecting block. The second connecting block is connected to the extension end of the first spring, the limiting rod is installed on the second connecting block, and a support is fixedly installed on the binding post. An arc extinguishing device is installed on the support, a third connecting block is fixedly installed at the extending end of the rotating rod, the roller is driven to be in low connection with the contact under the action of the first spring and the limiting rod, and due to the fact that the limiting rod is arranged, the situation that the whole structure deviates from the roller and touches other circuit positions can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical contacts, in particular to a rolling contact for electrical engineering. Background Art

[0002] Electrical contacts are the main conductive contact materials widely used in relays, contactors, load switches, medium and low voltage circuit breakers, household appliances, automotive appliances and other switching appliances. Switching appliances are widely used to separate / close the voltage / current in the circuit. Their reliability directly affects the reliable operation of the entire power system, and electrical contacts are one of the important components of switching appliances. Contact products are the "heart" components of these products. According to the structure and working characteristics, they can be divided into three categories: breakable contacts, sliding contacts and fixed contacts;

[0003] According to the publication number "CN213277833U", a rolling contact for electrical engineering, its structure includes a terminal, characterized in that the terminal is connected to a fixing mechanism, the fixing mechanism is connected to a receiving box through a spring, the receiving box is connected to a bearing bracket, the side of the receiving box is connected to an arc extinguishing device through a support rod, the two ends of the bearing bracket are fixed with a conductive shaft, and a roller is arranged outside the conductive shaft. The device increases the pressure between the contact and the contact surface through a spring, so that the movement between them is more closely matched, and after power is turned on, the adsorption plate will adsorb and clean the metal chips and other impurities on the surface of the contact.

[0004] However, in actual use, the spring of the overall structure lacks a limit, the rolling contact is easily displaced when abutting, and the roller is fixed and cannot be replaced. Therefore, improvements are made based on the above-mentioned problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a rolling contact for electrical engineering. The utility model has the advantages that a connecting block 2 is connected to the extended end of a spring 1, a limiting rod is installed on the connecting block 2, and the roller is driven to contact the contact under the action of the spring 1 and the limiting rod. The limiting rod can prevent the overall structure from deviating and the roller from touching other circuit positions.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rolling contact for electrical engineering, comprising a connecting block 1, a terminal post is installed on one side of the outer wall of the connecting block 1, a limiting portion is arranged on the connecting block 1, the limiting portion comprises a spring 1, the spring 1 is fixedly connected to the connecting block 1, the extending end of the spring 1 is fixedly connected to the connecting block 2, a limiting rod is fixedly installed on the connecting block 2, and the extending end of the limiting rod is movably inserted in the connecting block 1.

[0007] Preferably, a bracket is fixedly mounted on the terminal, an arc extinguishing device is mounted on the bracket, a fixing part is provided on the bracket, the fixing part includes a bearing 1, the bearing 1 is fixedly mounted on the inner wall of the bracket, a rotating rod is fixedly mounted on the inner wall of the bearing 1, and a connecting block 3 is fixedly mounted on the extending end of the rotating rod.

[0008] Preferably, spring two is fixedly connected to the connecting block three, the extending end of spring two is fixedly connected to the mounting block, and an insertion rod is fixedly mounted on the bottom of the mounting block. By setting a limit rod, the overall structure can be prevented from deviating and the roller touching the remaining circuit positions.

[0009] Preferably, a roller is inserted into the insertion rod, a plug hole is formed on the inner wall of the roller, a second spring is connected to the connecting block, and rollers of different sizes can be fixed and replaced under the action of the second spring.

[0010] Preferably, there are two groups of the fixing parts, and the two groups of the fixing parts are symmetrically installed at two ends of the inner wall of the bracket.

[0011] Preferably, the insertion rods are arranged in a hexagonal shape, the number of the insertion rods is four groups, and the four groups of insertion rods are symmetrically arranged at equal intervals.

[0012] Compared with the prior art, the utility model provides a rolling contact for electrical engineering, which has the following beneficial effects:

[0013] 1. A rolling contact for electrical engineering, wherein a connecting block 2 is connected to the extended end of a spring 1, a limiting rod is installed on the connecting block 2, and the roller is driven to contact the contact under the action of the spring 1 and the limiting rod. The limiting rod can prevent the overall structure from deviating and the roller from touching other circuit positions.

[0014] 2. The rolling contact for electrical engineering has a rotating rod installed on a bearing 1, and a connecting block installed on the rotating rod, and a spring 2 is connected to the connecting block. Under the action of the spring 2, rollers of different sizes can be fixed and replaced, so as to be suitable for different circuits. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a side view structural schematic diagram of the utility model;

[0018] Figure 3It is a partial structural schematic diagram of the utility model.

[0019] In the figure: 1, connecting block 1; 21, limiting part; 211, spring 1; 212, limiting rod; 213, connecting block 2; 22, fixing part; 221, bearing 1; 222, rotating rod; 223, connecting block 3; 224, spring 2; 225, mounting block; 226, plug rod; 23, roller; 3, terminal; 4, arc extinguishing device; 5, bracket. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Example 1

[0022] like Figure 1-3 As shown, the utility model provides a rolling contact for electrical engineering, including a connecting block 1, a terminal 3 is installed on one side of the outer wall of the connecting block 1, a limiting portion 21 is arranged on the connecting block 1, and the limiting portion 21 includes a spring 211, the spring 211 is fixedly connected to the connecting block 1, and the extending end of the spring 211 is fixedly connected to the connecting block 213, a limiting rod 212 is fixedly installed on the connecting block 213, and the extending end of the limiting rod 212 is movably inserted in the connecting block 1.

[0023] In this embodiment, a connecting block 213 is connected to the extended end of the spring 1 211, and a limiting rod 212 is installed on the connecting block 213. The roller 23 is driven to make low contact with the contact under the action of the spring 1 211 and the limiting rod 212. The limiting rod 212 can prevent the overall structure from deviating and causing the roller 23 to touch other circuit positions.

[0024] Example 2

[0025] like Figure 1-3As shown, on the basis of Example 1, the utility model provides a technical solution: a bracket 5 is fixedly installed on the terminal 3, an arc extinguishing device 4 is installed on the bracket 5, a fixing portion 22 is provided on the bracket 5, the fixing portion 22 includes a bearing 1 221, the bearing 1 221 is fixedly installed on the inner wall of the bracket 5, a rotating rod 222 is fixedly installed on the inner wall of the bearing 1 221, a connecting block 3 223 is fixedly installed on the extended end of the rotating rod 222, a spring 224 is fixedly connected to the connecting block 3 223, a mounting block 225 is fixedly connected to the extended end of the spring 224, and the bottom of the mounting block 225 is fixed An insertion rod 226 is installed, and the limiting rod 212 is set to prevent the overall structure from shifting and the roller 23 from touching the other circuit positions. The roller 23 is inserted into the insertion rod 226, and a hole is opened on the inner wall of the roller 23. A spring 224 is connected to the connecting block, and under the action of the spring 224, rollers 23 of different sizes can be fixed and replaced. The number of fixing parts 22 is two groups, and the two groups of fixing parts 22 are symmetrically installed at both ends of the inner wall of the bracket 5. The insertion rod 226 is hexagonal, and the number of the insertion rod 226 is four groups, and the four groups of insertion rods 226 are symmetrically arranged with equal intervals.

[0026] In this embodiment, a rotating rod 222 is installed on the bearing 1 221, and a connecting block is installed on the rotating rod 222, and a spring 224 is connected to the connecting block. Under the action of the spring 224, rollers 23 of different sizes can be fixed and replaced, so as to be suitable for different circuits.

[0027] The following is a detailed description of the working principle of this rolling contact for electrical engineering.

[0028] like Figure 1-3 As shown, when in use, a terminal 3 is installed on the connecting block 1, and a spring 211 is connected to the connecting block 1, and a connecting block 213 is connected to the extended end of the spring 211, and a limiting rod 212 is installed on the connecting block 213. The roller 23 is driven to low-contact the contact under the action of the spring 211 and the limiting rod 212. The limiting rod 212 can prevent the overall structure from deviating and the roller 23 from touching the remaining circuit positions. A fixing portion 22 is provided on the bracket 5, and a bearing 221 is installed on the bracket 5, a rotating rod 222 is installed on the bearing 221, and a connecting block is installed on the rotating rod 222, and a spring 224 is connected to the connecting block. Under the action of the spring 224, rollers 23 of different sizes can be fixed and replaced, so as to be suitable for different circuits.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rolling contact for electrical engineering, comprising a connecting block (1), characterized in that: A terminal post (3) is installed on one side of the outer wall of the connection block one (1); a limiting portion (21) is provided on the connection block one (1); the limiting portion (21) comprises a spring one (211); the spring one (211) is fixedly connected to the connection block one (1); an extended end of the spring one (211) is fixedly connected to a connection block two (213); a limiting rod (212) is fixedly installed on the connection block two (213); and an extended end of the limiting rod (212) is movably inserted into the connection block one (1).

2. A rolling contact for electrical engineering according to claim 1, characterized in that: A bracket (5) is fixedly mounted on the terminal (3), an arc extinguishing device (4) is mounted on the bracket (5), a fixing portion (22) is provided on the bracket (5), the fixing portion (22) comprises a bearing 1 (221), the bearing 1 (221) is fixedly mounted on the inner wall of the bracket (5), a rotating rod (222) is fixedly mounted on the inner wall of the bearing 1 (221), and a connecting block 3 (223) is fixedly mounted on the extending end of the rotating rod (222).

3. A rolling contact for electrical engineering according to claim 2, characterized in that: The connection block three (223) is fixedly connected to a spring two (224), the extended end of the spring two (224) is fixedly connected to a mounting block (225), and the bottom of the mounting block (225) is fixedly installed with an insertion rod (226).

4. A rolling contact for electrical engineering according to claim 3, characterized in that: A roller (23) is inserted into the insertion rod (226), and an insertion hole is formed on the inner wall of the roller (23).

5. The rolling contact for electrical engineering according to claim 2, characterized in that: The number of the fixing parts (22) is two groups, and the two groups of the fixing parts (22) are symmetrically mounted at two ends of the inner wall of the bracket (5).

6. The rolling contact for electrical engineering according to claim 3, characterized in that: The insertion rods (226) are arranged in a hexagonal shape, the number of the insertion rods (226) is four groups, and the four groups of the insertion rods (226) are symmetrically arranged at equal intervals.

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