CN213845128U

CN213845128U - Isolating switch

Info

Publication number: CN213845128U
Application number: CN202022174731.1U
Authority: CN
Inventors: 陶远明
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-07-30
Anticipated expiration: 2030-09-28

Abstract

The utility model relates to a power equipment technical field discloses an isolator, including: a first contact assembly and a second contact assembly; the first contact assembly and the second contact assembly are arranged at intervals, and both the first contact assembly and the second contact assembly comprise contacts; the contact finger assembly is arranged between the first contact assembly and the second contact assembly; the two ends of the contact finger assembly are provided with a plurality of contact fingers, and the contact fingers comprise an upper contact finger and a lower contact finger which are symmetrically arranged up and down; the upper contact finger and the lower contact finger are provided with a gap for the contact to be clamped in, the upper contact finger is provided with a first guide part bent upwards, and the lower contact finger is provided with a second guide part bent downwards. The utility model has the advantages that the isolating switch can realize the multi-directional leading-in matching of the contact and the contact finger; the influence of rain and snow on the contact and the contact finger can be effectively prevented, and the ice breaking capacity is strong; less heat generation and long service life.

Description

Isolating switch

Technical Field

The utility model relates to a power equipment technical field relates to an isolator.

Background

The isolating switch is mainly applied to a high-voltage circuit, when the circuit needs to be overhauled, an operator drives the contact and the contact finger to be separated through the linkage device, so that a conductive loop of the isolating switch is disconnected, and the life safety of maintenance personnel is guaranteed; when the maintenance is finished, the linkage device drives the contact and the contact finger to be clamped, so that the conductive loop of the isolating switch is conducted. The existing isolating switch has the advantages of single direction of leading a contact into a contact finger, poor ice breaking capacity, serious heat generation and short service life.

The patent "CN 207572297U" discloses a main conductive loop of three-column type isolator, including left terminal board, rotatory fixed plate and right-hand member daughter board, install left static contact on the left terminal board, install right static contact on the right-hand member daughter board, install left conducting rod and right conducting rod on the rotatory fixed plate, left contact finger connecting piece is installed to the left end of left conducting rod, install left movable contact finger on the left contact finger connecting piece, right contact finger connecting piece is installed to the right-hand member of right conducting rod, install right movable contact finger on the right contact finger connecting piece, left movable contact finger with left static contact sliding point contact links to each other, right movable contact finger with right static contact sliding point contact links to each other. In the scheme, the contact and the contact finger can only be matched through the introduction of the side surface, and the contact finger are not provided with any protection measure, so that the contact and the contact finger are easily influenced by rain and snow and have poor ice breaking capacity; and the phenomenon of serious heat generation is easy to occur.

SUMMERY OF THE UTILITY MODEL

The above-mentioned not enough to prior art exists, the utility model aims to solve the technical problem that a contact can multidirectional leading-in cooperation is proposed, and the isolator that generates heat few, the ability of opening ice is strong.

The utility model provides a technical scheme that its technical problem adopted is, provides an isolator, including:

a first contact assembly and a second contact assembly; the first contact assembly and the second contact assembly are arranged at intervals, and both the first contact assembly and the second contact assembly comprise contacts;

a contact finger assembly disposed between the first contact assembly and the second contact assembly; the two ends of the contact finger assembly are provided with a plurality of contact fingers, and the contact fingers comprise upper contact fingers and lower contact fingers which are arranged up and down symmetrically; the upper contact finger and the lower contact finger are provided with a gap for the contact to be clamped in, the upper contact finger is provided with a first guide part bent upwards, and the lower contact finger is provided with a second guide part bent downwards.

Further, the distance between the upper contact finger and the lower contact finger is gradually reduced from the contact end to the contact end.

Furthermore, the contact finger assembly further comprises a contact finger fixing plate, and the contact finger is detachably arranged on the contact finger fixing plate;

the first contact assembly and the second contact assembly respectively comprise a contact fixing plate, and the contacts are detachably arranged on the contact fixing plates.

Furthermore, first shielding caps are arranged at two ends of the contact finger assembly and are positioned above the contact fingers; and a second shielding cap is arranged on the contact fixing plate and is positioned above the contact.

Furthermore, the upper end face and the lower end face of the contact are both arranged to be cylindrical surfaces, and when the contact is clamped between the upper contact finger and the lower contact finger, the upper contact finger and the lower contact finger are respectively in contact with the cylindrical surfaces at the upper end and the lower end of the contact.

Furthermore, one end of the contact is provided with a guide head, and the other end of the contact is provided with a limiting rod; and the directions of the guide heads of the two contacts are opposite.

Further, a plane is arranged on the side, close to the contact fixing plate, of the contact; and one end of the contact fixing plate, which is close to the contact, is provided with a notch, and the plane is attached to the contact fixing plate and covers the notch.

Furthermore, two inclined planes are arranged on two sides of the notch, and the distance between the two inclined planes is gradually increased from the side far away from the contact to the side close to the contact.

Furthermore, four upper contact fingers and four lower contact fingers are arranged at two ends of the contact finger assembly.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

in the utility model, the upper contact finger is provided with a first guide part which is bent upwards, the lower contact finger is provided with a second guide part which is bent downwards, and the opening of the first guide part and the opening of the second guide part are gradually increased, so that the contact can be led into the space between the upper contact finger and the lower contact finger from the side surface like the traditional contact, and the contact can be led into the space between the upper contact finger and the lower contact finger from the positive direction, thereby realizing the multi-directional leading-in between the upper contact finger and the lower contact finger, and the matching is convenient; the second shielding cap is arranged above the contact, the first shielding cap is arranged above the contact finger, and the first shielding cap and the second shielding cap can effectively prevent the contact and the contact finger from being influenced by rain, snow and ice, improve the ice breaking capacity of the isolating switch and prolong the practical service life of the isolating switch; the distance between the upper contact finger and the lower contact finger is gradually reduced from the side close to the contact to the side far away from the contact, so that the contact can be effectively clamped, and the structural stability is high; the contact area of contact and contact fixed plate can effectively be reduced in the setting of breach, reduces calorific capacity.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the mating of the first contact assembly and the finger assembly;

FIG. 3 is a schematic structural view of a first contact assembly;

FIG. 4 is a partial schematic view of a finger assembly;

FIG. 5 is an assembled view of the contact and the contact mounting plate;

fig. 6 is a schematic view of the contact structure.

In the figure, the position of the upper end of the main shaft,

1. a first contact assembly; 10. a contact; 11. a contact fixing plate; 12. a second shielding cap; 101. a cylindrical surface; 102. a guide head; 103. a limiting rod; 104. a plane; 111. a notch; 1101. a bevel;

2. a second contact assembly;

3. a finger assembly; 30. a contact finger; 31. a contact finger fixing plate; 32. a first shielding cap; 301. an upper contact finger; 302. a lower contact finger; 303. a gap; 3011. a first guide portion; 3021. a second guide portion.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, a disconnector, comprising: a first contact assembly 1, a second contact assembly 2 and a finger assembly 3. Wherein the first contact assembly 1 and the second contact assembly 2; the first contact assembly 1 and the second contact assembly 2 are arranged at intervals, and both the first contact assembly 1 and the second contact assembly 2 comprise contacts 10; the first contact assembly 1 and the second contact assembly 2 have the same structure; the contact finger assembly 3 is arranged between the first contact assembly 1 and the second contact assembly 2; a plurality of contact fingers 30 are arranged at two ends of the contact finger assembly 3, and each contact finger 30 comprises an upper contact finger 301 and a lower contact finger 302 which are symmetrically arranged up and down; a gap 303 for the contact 10 to be clamped is formed between the upper contact finger 301 and the lower contact finger 302, the upper contact finger 301 is provided with a first guide part 3011 bent upwards, and the lower contact finger 302 is provided with a second guide part 3021 bent downwards; specifically, two ends of the contact finger assembly 3 are respectively provided with the four upper contact fingers 301 and the four lower contact fingers 302, so that the upper contact fingers 301 and the lower contact fingers 302 can be in good contact with the contact 10, the short circuit risk is reduced, and contact sparks are generated.

Preferably, the distance between the upper contact finger 301 and the lower contact finger 302 decreases from the end close to the contact 10 to the end far from the contact 10. When the contact 10 is guided into the gap 303 between the upper contact finger 301 and the lower contact finger 302, the gradual change of the distance can effectively ensure that the upper contact finger 301 and the lower contact finger 302 clamp the contact 10, and the contact is reliable in matching and high in structural stability. The distance between the first guide part 3011 and the second guide part 3021 is also gradually reduced from the side close to the contact 10 to the side far from the contact 10, so that the contact 10 is conveniently guided into the upper contact finger 301 and the lower contact finger 302; the arrangement of the first guide portion 3011 and the second guide portion 3021 enables the contact 10 to be led into the space between the upper contact finger 301 and the lower contact finger 302 from the side surface like a traditional contact, and the contact 10 to be led into the space between the upper contact finger 301 and the lower contact finger 302 from the forward direction, so that the multi-direction leading-in between the upper contact finger 301 and the lower contact finger 302 is realized, the matching is convenient, and the application range is wider.

The contact finger assembly 3 further comprises a contact finger fixing plate 31, and the contact finger 30 is detachably arranged on the contact finger fixing plate 31; the first contact assembly 1 and the second contact assembly 2 each include a contact fixing plate 11, and the contact 10 is detachably disposed on the contact fixing plate 11. The two ends of the contact finger assembly 3 are respectively provided with a first shielding cap 32, and the first shielding caps 32 are positioned above the contact fingers 30; a second shielding cap 12 is arranged on the contact fixing plate 11, and the second shielding cap 12 is located above the contact 10.

In the actual use process, the second shielding cap 12 is arranged above the contact 10, the first shielding cap 32 is arranged above the contact finger 30, the first shielding cap 12 and the second shielding cap 32 can effectively shield rainwater and ice and snow, the contact 10 and the contact finger 30 are prevented from being influenced by rain, snow and ice, the ice breaking capacity of the isolating switch is improved, and the practical service life of the isolating switch is prolonged. Wherein the first shielding cap 32 and the second shielding cap 12 can be understood as voltage equalizing caps, and also voltage equalizing fields.

As shown in fig. 5 to 6, the upper end surface and the lower end surface of the contact 10 are both provided with cylindrical surfaces 101, and when the contact 10 is clamped between the upper contact finger 301 and the lower contact finger 302, the upper contact finger 301 and the lower contact finger 302 are respectively in contact with the cylindrical surfaces 101 at the upper end and the lower end of the contact 10, that is, the contact between the contact 10 and the contact finger 30 is a line contact, so as to prevent the situations that the contact area is too large, the heat generation amount is large, and the separation between the contact 10 and the contact finger 30 is difficult. One end of the contact 10 is provided with a guide head 102, and the other end of the contact 10 is provided with a limiting rod 103; and the orientations of the guide heads 102 of the two contacts 10 are opposite, in the using process, the contact finger assembly 3 is respectively matched with the first contact assembly 1 and the second contact assembly 2 through the rotation of the contact finger assembly 3, so that the contacts 10 in the first contact assembly 1 and the contacts 10 in the second contact assembly 2 are arranged in different orientations, and the two contacts 10 can be guided into the space between the upper contact finger 301 and the lower contact finger 302 more smoothly.

Further preferably, the contact 10 is provided with a plane 104 on the side close to the contact fixing plate 11; a notch 110 is formed at one end of the contact fixing plate 11 close to the contact 10, and the plane 104 is attached to the contact fixing plate 11 and covers the notch 110. Specifically, two inclined planes 1101 are arranged on two sides of the notch 110, and the distance between the two inclined planes 1101 gradually increases from the side far away from the contact 10 to the side close to the contact 10. The arrangement of the notch 110 and the inclined planes 1101 on the two sides of the notch 110 can effectively reduce the contact area between the contact 10 and the contact fixing plate 11, reduce the heat productivity in the use process and prolong the service life of the isolating switch.

The isolating switch can realize multi-directional leading-in matching of the contact and the contact finger; the influence of rain and snow on the contact and the contact finger can be effectively prevented, and the ice breaking capacity is strong; less heat generation and long service life.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A disconnecting switch, comprising:

2. The isolating switch of claim 1, wherein the spacing between the upper contact finger and the lower contact finger decreases from the end near the contact to the end away from the contact.

3. The isolating switch of claim 1 or 2, wherein the contact finger assembly further comprises a contact finger fixing plate, and the contact finger is detachably arranged on the contact finger fixing plate;

4. The isolating switch according to claim 3, wherein the two ends of the contact finger assembly are provided with first shielding caps, and the first shielding caps are located above the contact fingers; and a second shielding cap is arranged on the contact fixing plate and is positioned above the contact.

5. The isolating switch according to claim 3, wherein the upper end surface and the lower end surface of the contact are both provided with cylindrical surfaces, and when the contact is clamped between the upper contact finger and the lower contact finger, the upper contact finger and the lower contact finger are respectively contacted with the cylindrical surfaces at the upper end and the lower end of the contact.

6. The isolating switch of claim 5, wherein one end of the contact is provided with a guide head, and the other end of the contact is provided with a limiting rod; and the directions of the guide heads of the two contacts are opposite.

7. A disconnector according to claim 5, in which the contact is provided with a flat surface on the side close to the contact-fixing plate; and one end of the contact fixing plate, which is close to the contact, is provided with a notch, and the plane is attached to the contact fixing plate and covers the notch.

8. A disconnector according to claim 7, in which the gap is provided with two inclined surfaces on both sides thereof, and the distance between the two inclined surfaces increases from the side remote from the contact to the side close to the contact.

9. The isolating switch of claim 1, wherein four upper contact fingers and four lower contact fingers are disposed at two ends of the contact finger assembly.