CN215451267U

CN215451267U - Driving device of high-voltage vacuum circuit breaker

Info

Publication number: CN215451267U
Application number: CN202120999222.4U
Authority: CN
Inventors: 肖青; 应可可
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2022-01-07
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a driving device of a high-voltage vacuum circuit breaker, which comprises a driving device shell, a ground foot, a driving opening and closing handle, a rainproof outer cover, a switching-off limiting magnet and a switching-on limiting magnet, wherein when the driving device shell is used, the rainproof outer cover can be used for shielding rain for driving the opening and closing handle, so that the surface of the driving opening and closing handle is kept dry, force application of personnel is facilitated, when the switching-off operation is required, when the driving opening and closing handle is rotated to the switching-off direction to be close to the horizontal position, an upper armature resetting plate on the upper part of the driving opening and closing handle can be attracted by the switching-off limiting magnet, the switching-off is ensured to be thorough, when the driving opening and closing handle is required to be rotated to the switching-on direction, the switching-on limiting magnet can firmly attract a lower armature resetting plate, the switching-on limiting magnet is ensured to be thorough, and the safety accident of the circuit breaker can be avoided, the use safety of the circuit breaker is ensured.

Description

Driving device of high-voltage vacuum circuit breaker

Technical Field

The utility model relates to the technical field of high-voltage vacuum circuit breakers, in particular to a driving device of a high-voltage vacuum circuit breaker.

Background

The vacuum circuit breaker is named because the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum; the arc extinguishing device has the advantages of small volume, light weight, suitability for frequent operation and no need of maintenance for arc extinguishing, and is relatively popularized in power distribution networks. The vacuum circuit breaker is an indoor power distribution device in a 3-10 kV and 50Hz three-phase alternating-current system, can be used for protecting and controlling electrical equipment in industrial and mining enterprises, power plants and transformer substations, is particularly suitable for use places requiring no oiling, less maintenance and frequent operation, can be configured in a middle cabinet, a double-layer cabinet and a fixed cabinet as control and protection high-voltage electrical equipment, and has the working principle that: when the moving contact and the static contact are switched off under the action of the operating mechanism, electric arcs are generated between the contacts, steam is volatilized from the surfaces of the contacts at high temperature, a magnetic field is generated when current passes through the contacts due to the special shape of the contacts, the electric arcs rapidly move along the tangential direction of the surfaces of the contacts under the action of the magnetic field, partial metal steam is condensed on the metal cylinder (shielding cover), the electric arcs are extinguished when the electric arcs naturally pass through zero, and the medium strength between the contacts is rapidly recovered.

At present, current high-pressure vacuum circuit breaker's drive arrangement is manual formula mostly, when needs carry out the divide-shut brake, need personnel manual operation drive divide-shut brake handle to realize the divide-shut brake, in the actual operation process, because operating personnel can't see the contact condition of the inside contact of circuit breaker, the not thorough condition of divide-shut brake often can appear, when the divide-shut brake is not thorough, can not cut off the trouble fast, very easily lead to the contact scaling loss, the circuit breaker oil spout, the explosion chamber explosion, when the combined floodgate is not thorough, lead to the contact not in place, along with the load current increase, the contact continuously generates heat, very easily produce the conflagration, in addition, current high-pressure vacuum circuit breaker drive divide-shut brake handle receives rain easily and the surperficial is wet and slippery, inconvenient personnel operation.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a driving apparatus of a high voltage vacuum circuit breaker, which solves the above problems of the related art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a high-pressure vacuum circuit breaker's drive arrangement, includes drive arrangement casing, drive deciliter handle, rain-proof dustcoat, the spacing magnet of separating brake and the spacing magnet of combined floodgate, drive deciliter handle is installed to one side of drive arrangement casing, install rain-proof dustcoat on the upper portion of drive deciliter handle on the outer wall of drive arrangement casing, drive deciliter handle includes handle arm, upper armature reset plate and lower armature reset plate weld respectively in the upper end and the lower extreme of handle arm to upper armature reset plate and lower armature reset plate correspond the setting from top to bottom, the spacing magnet of separating brake is installed to the position directly over upper armature reset plate on the outer wall of drive arrangement casing, install the spacing magnet of combined floodgate in the below of drive deciliter handle on the outer wall of drive arrangement casing.

As a further scheme of the utility model: the opening limiting magnet is matched with an upper armature resetting plate for use, the closing limiting magnet is matched with a lower armature resetting plate for use, the opening limiting magnet is horizontally arranged on the shell of the driving device, and the closing limiting magnet is vertically arranged on the shell of the driving device.

As a still further scheme of the utility model: and an opening and closing indicating line is arranged on the outer wall of the shell of the driving device at the lower part of the driving opening and closing handle.

As a still further scheme of the utility model: the upper portion of rain-proof dustcoat is the arc top facing that the radian is 180, the both ends of handle arm have seted up the hand-pulled hole, the transmission shaft fixed orifices has been seted up to the centre of handle arm.

As a still further scheme of the utility model: the lower margin is installed to the bottom both sides position of drive arrangement casing, be provided with vacuum interrupter on the drive arrangement casing side by side, vacuum interrupter's centre is provided with the insulating part, vacuum interrupter's top is provided with high-voltage input, the front end of insulating part is provided with current transformer, current transformer's front end is provided with high-voltage output.

As a still further scheme of the utility model: the driving split-combination handle is fixedly connected with a transmission shaft arranged in the driving device shell, and the transmission shaft is fixedly connected with the moving and static contacts in the driving device shell.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the opening limiting magnet is arranged at the opening ending position of the driving opening and closing handle and the closing limiting magnet is arranged at the closing ending position, when a person rotates the driving opening and closing handle in the opening direction, the upper armature resetting plate at the upper part of the driving opening and closing handle can be firmly adsorbed by the opening limiting magnet, so that the driving opening and closing handle can completely reach the opening position.

2. According to the utility model, the rainproof outer cover is arranged on the upper part of the driving opening and closing handle, so that rain can be shielded from the driving opening and closing handle, and the influence on the operation of personnel due to the slippery surface of the driving opening and closing handle is avoided.

Drawings

Fig. 1 is a schematic structural view of a driving apparatus of a high voltage vacuum circuit breaker.

Fig. 2 is an enlarged view of a structure of a driving apparatus of a high voltage vacuum circuit breaker at a in fig. 1.

Fig. 3 is a schematic structural view of a driving device of a high-voltage vacuum circuit breaker, wherein the driving device of the high-voltage vacuum circuit breaker in fig. 2 drives a switching handle.

1. A drive device housing; 2. ground feet; 3. a vacuum arc-extinguishing chamber; 4. an insulating member; 5. a high voltage input; 6. a current transformer; 7. a high voltage output terminal; 8. driving the opening and closing handle; 801. a handle arm; 802. a transmission shaft fixing hole; 803. c, hand-pulling the hole; 804. an upper armature return plate; 805. a lower armature return plate; 9. a switching-on and switching-off indicating line; 10. a drive shaft; 11. a rain-proof outer cover; 12. a brake separating limit magnet; 13. and a closing limit magnet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, in an embodiment of the present invention, a driving device of a high voltage vacuum circuit breaker includes a driving device housing 1, a driving opening/closing handle 8, a rainproof cover 11, a switching-off limit magnet 12, and a switching-on limit magnet 13, the driving opening/closing handle 8 is installed on one side of the driving device housing 1, the rainproof cover 11 is installed on the upper portion of the driving opening/closing handle 8 on the outer wall of the driving device housing 1, the driving opening/closing handle 8 includes a handle arm 801, an upper armature reset plate 804, and a lower armature reset plate 805, the upper armature reset plate 804 and the lower armature reset plate 805 are respectively welded to the upper end and the lower end of the handle arm 801, and the upper armature resetting plate 804 and the lower armature resetting plate 805 are arranged up and down correspondingly, an opening limiting magnet 12 is arranged on the outer wall of the driving device shell 1 right above the upper armature resetting plate 804, and an closing limiting magnet 13 is arranged on the outer wall of the driving device shell 1 below the driving opening and closing handle 8.

The opening limiting magnet 12 is matched with the upper armature resetting plate 804 for use, the closing limiting magnet 13 is matched with the lower armature resetting plate 805 for use, the opening limiting magnet 12 is horizontally arranged on the driving device shell 1, and the closing limiting magnet 13 is vertically arranged on the driving device shell 1.

And an opening and closing indicating line 9 is arranged on the outer wall of the driving device shell 1 at the lower part of the driving opening and closing handle 8.

The upper portion of rain-proof dustcoat 11 is the arc top facing that the radian is 180, and hand-drawing hole 803 has been seted up at the both ends of handle arm 801, and transmission shaft fixed orifices 802 has been seted up to the centre of handle arm 801, and the design of arc top facing can accelerate the rainwater water conservancy diversion, strengthens the rain-proof effect of rain-proof dustcoat 11.

Lower margin 2 is installed to the bottom both sides position of drive arrangement casing 1, is provided with vacuum interrupter 3 on the drive arrangement casing 1 side by side, and the centre of vacuum interrupter 3 is provided with insulating part 4, and the top of vacuum interrupter 3 is provided with high-voltage input 5, and the front end of insulating part 4 is provided with current transformer 6, and the front end of current transformer 6 is provided with high-voltage output 7.

The driving separation and combination handle 8 is fixedly connected with a transmission shaft 10 arranged in the driving device shell 1, and the transmission shaft 10 is fixedly connected with the moving and static contacts in the driving device shell 1.

The working principle of the utility model is as follows:

when the device is used, rain can be shielded for the driving opening and closing handle 8 through the rain-proof outer cover 11, so that the surface of the driving opening and closing handle 8 is kept dry, a palm of a person is not easy to slip from the driving opening and closing handle 8 when the person holds the driving opening and closing handle 8, force application of the person is facilitated, when the driving opening and closing handle 8 is rotated towards the opening direction to be close to the horizontal position, the upper armature reset plate 804 on the upper portion of the driving opening and closing handle 8 is attracted by the opening limiting magnet 12 to realize fixation, opening is guaranteed to be thorough, when closing operation is needed, the driving opening and closing handle 8 is separated from the opening limiting magnet 12 with force, then the driving opening and closing handle is rotated towards the closing direction, when the driving opening and closing handle 8 is about to reach the closing position, the closing limiting magnet 13 can firmly attract the lower armature reset plate 805, so that the driving opening and closing handle 8 accurately reaches the closing position, and closing is guaranteed to be thorough, therefore, the safety accident of the circuit breaker caused by incomplete switching on and off can be avoided, and the use safety of the circuit breaker is ensured.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a high pressure vacuum circuit breaker's drive arrangement, includes drive arrangement casing (1), drive deciliter handle (8), rain-proof dustcoat (11), spacing magnet of separating brake (12) and the spacing magnet of combined floodgate (13), its characterized in that: one side of the driving device shell (1) is provided with a driving on-off handle (8), a rainproof outer cover (11) is arranged on the outer wall of the driving device shell (1) and on the upper part of the driving on-off handle (8), the drive split-combination handle (8) comprises a handle arm (801), an upper armature resetting plate (804) and a lower armature resetting plate (805), the upper armature resetting plate (804) and the lower armature resetting plate (805) are respectively welded at the upper end and the lower end of the handle arm (801), the upper armature resetting plate (804) and the lower armature resetting plate (805) are arranged up and down correspondingly, the outer wall of the driving device shell (1) is provided with a brake separating limit magnet (12) at a position right above the upper armature resetting plate (804), and a closing limiting magnet (13) is arranged on the outer wall of the driving device shell (1) below the driving opening and closing handle (8).

2. The driving apparatus of a high voltage vacuum circuit breaker according to claim 1, wherein: spacing magnet of separating brake (12) and the cooperation of upper armature reset plate (804) are used, spacing magnet of closing a floodgate (13) and the cooperation of lower armature reset plate (805) are used, spacing magnet of separating brake (12) level setting on drive arrangement casing (1), spacing magnet of closing a floodgate (13) vertical setting on drive arrangement casing (1).

3. The driving apparatus of a high voltage vacuum circuit breaker according to claim 1, wherein: and an opening and closing indicating line (9) is arranged on the outer wall of the driving device shell (1) at the lower part of the driving opening and closing handle (8).

4. The driving apparatus of a high voltage vacuum circuit breaker according to claim 1, wherein: the upper portion of rain-proof dustcoat (11) is the arc top facing that the radian is 180, hand-drawing hole (803) have been seted up at the both ends of handle arm (801), transmission shaft fixed orifices (802) have been seted up in the centre of handle arm (801).

5. The driving apparatus of a high voltage vacuum circuit breaker according to claim 1, wherein: lower margin (2) are installed to the bottom both sides position of drive arrangement casing (1), be provided with vacuum interrupter (3) on drive arrangement casing (1) side by side, the centre of vacuum interrupter (3) is provided with insulator (4), the top of vacuum interrupter (3) is provided with high-voltage input end (5), the front end of insulator (4) is provided with current transformer (6), the front end of current transformer (6) is provided with high-voltage output end (7).

6. The driving apparatus of a high voltage vacuum circuit breaker according to claim 1, wherein: the driving separation and combination handle (8) is fixedly connected with a transmission shaft (10) arranged in the driving device shell (1), and the transmission shaft (10) is fixedly connected with a moving contact and a static contact in the driving device shell (1).