CN218241753U

CN218241753U - Magnetic latching spring operating mechanism

Info

Publication number: CN218241753U
Application number: CN202221164357.XU
Authority: CN
Inventors: 曹兆阳; 刘阳; 张伟峰
Original assignee: Xi'an Qianjin Electric Industrial Co ltd
Current assignee: Xi'an Qianjin Electric Industrial Co ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2023-01-06
Anticipated expiration: 2032-05-13

Abstract

The utility model relates to a circuit breaker technical field specifically is a magnetic latching spring operating mechanism, it can effectively prevent shell fragment and contact from taking place contact failure, and just can carry out the arc extinguishing in the shell fragment motion process, including the circuit breaker casing, the inside top of circuit breaker casing is provided with first wiring end, the inside bottom of circuit breaker casing is provided with the second wiring end, the internally mounted of first wiring end has the inlet wire, the internally mounted of second wiring end has being qualified for the next round of competitions, the inside of circuit breaker casing is provided with the fixed block, the bottom of fixed block is provided with the spring, the bottom of spring is provided with the connection piece, the inside of circuit breaker casing is provided with the fixed strip, be provided with several arc extinguishing block on the lateral wall of fixed strip, the inside of circuit breaker casing is provided with the arc extinguishing bars, the inside left part of circuit breaker casing is provided with drive arrangement, drive arrangement's right part is provided with the shell fragment, drive arrangement's left part is provided with operating handle, the inside middle part of circuit breaker casing is provided with the coil.

Description

Magnetic latching spring operating mechanism

Technical Field

The utility model relates to a circuit breaker technical field specifically is a magnetic latching spring operating device.

Background

As is well known, a circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition for a predetermined time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances. The breaker can be used to distribute electric energy, start asynchronous motor infrequently, protect power supply circuit and motor, and automatically cut off circuit when they have serious overload or short circuit and undervoltage faults, and it is equivalent to the combination of fuse switch and over-and-under-heat relay. Furthermore, there is generally no need to change the components after breaking the fault current. At present, it has been widely used. The power distribution is an extremely important link in the generation, transmission and use of electricity. The distribution system comprises a transformer and various high-low voltage electrical equipment, and the low-voltage circuit breaker is an electrical appliance with a large using amount.

The inside of current circuit breaker all is provided with fixed contact and shell fragment and carries out the electricity and connects, and after the circuit breaker live time is long, because the material takes place to deform, the shell fragment hardly resumes the normal position, the shell fragment can and the contact between appear contact failure to current circuit breaker carries out the arc extinguishing through the arc extinguishing bars, just can carry out the arc extinguishing when the shell fragment descends to target in place after, can't carry out the arc extinguishing in the shell fragment motion process.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a magnetic latching spring operating device can prevent effectively that shell fragment and contact from taking place contact failure to can just carry out the arc extinguishing in the shell fragment motion process.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a magnetic latching spring operating mechanism, including the circuit breaker casing, the inside top of circuit breaker casing is provided with first wiring end, the inside bottom of circuit breaker casing is provided with the second wiring end, the internally mounted of first wiring end has the inlet wire, the internally mounted of second wiring end has a line of being qualified for the next round of competitions, the inside of circuit breaker casing is provided with the fixed block, the bottom of fixed block is provided with the spring, the bottom of spring is provided with the connection piece, the inside of circuit breaker casing is provided with the fixed strip, be provided with several arc extinguishing piece on the lateral wall of fixed strip, the inside arc extinguishing bars that is provided with of circuit breaker casing, the inside left part of circuit breaker casing is provided with drive arrangement, drive arrangement's right part is provided with the shell fragment, drive arrangement's left part is provided with operating handle, the inside middle part of circuit breaker casing is provided with the coil, the inside of coil is provided with the actuating lever, the bottom of actuating lever is provided with the trace.

Further, the first terminal and the connecting sheet are electrically connected through a wire.

Furthermore, the elastic sheet is electrically connected with the coil through a lead.

Further, the coil and the second terminal are electrically connected through a wire.

Furthermore, the fixing block and the fixing strip are made of insulating materials.

Furthermore, the connecting sheet, the arc extinguishing block and the elastic sheet are all made of conductive metal materials.

(III) advantageous effects

Compared with the prior art, the utility model provides a magnetic latching spring operating device possesses following beneficial effect:

this magnetism keeps spring operating device through the setting of spring and connection piece, has replaced the fixed unchangeable contact of tradition, and the spring has good elasticity, and what shell fragment and contact piece can contact laminates more, uses for a long time also can effectively prevent the phenomenon of contact failure to appear, through the setting of fixed strip and several arc extinguishing piece, the shell fragment can be to realizing the arc extinguishing effect at the in-process of motion.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a circuit breaker housing; 2. a first terminal; 3. a second terminal; 4. feeding wires; 5. wire outgoing; 6. a fixed block; 7. a spring; 8. connecting sheets; 9. a fixing strip; 10. an arc extinguishing block; 11. an arc chute; 12. a spring plate; 13. a drive device; 14. an operating handle; 15. a coil; 16. a drive rod; 17. A linkage rod.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1, the magnetic latching spring operating mechanism of the present invention includes a circuit breaker housing 1, a first terminal 2 is disposed at the top inside the circuit breaker housing 1, a second terminal 3 is disposed at the bottom inside the circuit breaker housing 1, a wire inlet 4 is disposed inside the first terminal 2, a wire outlet 5 is disposed inside the second terminal 3, a fixing block 6 is disposed inside the circuit breaker housing 1, the fixing block 6 is fixedly connected to the inside of the circuit breaker housing 1, and also functions as a fixing spring 7, a spring 7 is disposed at the bottom end of the fixing block 6, a connecting piece 8 is disposed at the bottom end of the spring 7, the spring 7 has good elasticity, a spring plate 12 and the connecting piece can be contacted more closely, the first terminal 2 and the connecting piece 8 are electrically connected through a wire, a fixing strip 9 is disposed inside the circuit breaker housing 1, the fixed strip 9 is fixedly connected with the inside of the circuit breaker shell 1, and plays a role of fixing the arc extinguishing blocks 10, the fixed block 6 and the fixed strip 9 are made of insulating materials, the side wall of the fixed strip 9 is provided with a plurality of arc extinguishing blocks 10, the arc extinguishing effect can be realized by the elastic sheet 12 in the moving process, the arc extinguishing grid 11 is arranged inside the circuit breaker shell 1 and plays an arc extinguishing role, the left part inside the circuit breaker shell 1 is provided with a driving device 13 and a control elastic sheet 12, the right part of the driving device 13 is provided with an elastic sheet 12 and plays a conductive role, the connecting sheet 8, the arc extinguishing blocks 10 and the elastic sheet 12 are made of conductive metal materials, the left part of the driving device 13 is provided with an operating handle 14 and the elastic sheet 12 is controlled to move, the middle part inside the circuit breaker shell 1 is provided with a coil 15, and the elastic sheet 12 and the coil 15 are electrically connected through a wire, coil 15 and second wiring end 3 pass through wire electric connection, the inside of coil 15 is provided with actuating lever 16, the bottom of actuating lever 16 is provided with trace 17, through controlling the laminating of handle control shell fragment 12 and connection piece 8, play electrically conductive effect, when the circuit short circuit, the inside electric current of coil 15 is too big, coil 15 makes actuating lever 16 downstream, actuating lever 16 makes trace 17 move, trace 17 triggers drive arrangement 13, drive arrangement 13 separates shell fragment 12 and connection piece 8, play the effect of outage.

In conclusion, this magnetic latching spring operating mechanism, when using, cross the laminating of control handle control shell fragment 12 and connection piece 8, play electrically conductive effect, when the circuit short circuit, the inside electric current of coil 15 is too big, coil 15 makes actuating lever 16 move down, actuating lever 16 makes trace 17 move, trace 17 triggers drive arrangement 13, drive arrangement 13 separates shell fragment 12 and connection piece 8, play the effect of outage, the shell fragment 12 of motion is in the motion process, arc extinguishing block 10 plays the effect of arc extinguishing to shell fragment 12, arc extinguishing bars 11 plays the effect of arc extinguishing to shell fragment 12 after shell fragment 12 stops the motion.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A magnetically held spring operated mechanism comprising a circuit breaker housing (1), characterized in that: the inside top of circuit breaker casing (1) is provided with first wiring end (2), the inside bottom of circuit breaker casing (1) is provided with second wiring end (3), the internally mounted of first wiring end (2) has inlet wire (4), the internally mounted of second wiring end (3) has outlet wire (5), the inside of circuit breaker casing (1) is provided with fixed block (6), the bottom of fixed block (6) is provided with spring (7), the bottom of spring (7) is provided with connection piece (8), the inside of circuit breaker casing (1) is provided with fixed strip (9), be provided with several arc extinguishing block (10) on the lateral wall of fixed strip (9), the inside of circuit breaker casing (1) is provided with arc extinguishing bars (11), the inside left part of circuit breaker casing (1) is provided with drive arrangement (13), the right part of drive arrangement (13) is provided with shell fragment (12), the left part of drive arrangement (13) is provided with operating handle (14), the inside middle part of circuit breaker casing (1) is provided with coil (15), the inside of coil (15) is provided with interlock pole (16), the bottom of actuating lever (17).

2. A magnetically retained spring operated mechanism according to claim 1, wherein: the first terminal (2) and the connecting sheet (8) are electrically connected through a lead.

3. A magnetically retained spring operated mechanism according to claim 1, wherein: the elastic sheet (12) is electrically connected with the coil (15) through a lead.

4. A magnetically retained spring operated mechanism according to claim 1, wherein: the coil (15) and the second terminal (3) are electrically connected through a conducting wire.

5. A magnetically retained spring operated mechanism according to claim 1, wherein: the fixing block (6) and the fixing strip (9) are made of insulating materials.

6. A magnetically retained spring operated mechanism according to claim 1, wherein: the connecting sheet (8), the arc extinguishing block (10) and the elastic sheet (12) are all made of conductive metal materials.