CN210925927U

CN210925927U - Excitation type switch operating device

Info

Publication number: CN210925927U
Application number: CN201922274324.5U
Authority: CN
Inventors: 曹兵兵; 唐建文; 孙开原; 丁高峰; 种彪
Original assignee: Foretech Elec App Jiangsu Corp ltd
Current assignee: Foretech Elec App Jiangsu Corp ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-07-03
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses an excitation type switch operating means, include the base support and locate excitation coil mechanism, slip actuating mechanism, the manually operation mechanism on the base support. The excitation coil mechanism comprises a coil framework assembled on the base support, a static iron core and a movable iron core are assembled in a penetrating cavity of the coil framework, and a permanent magnet is assembled on a circular shaft of the static iron core; the excitation coil mechanism also comprises a driving slide block and a short shaft, the driving slide block is fixedly assembled with the movable iron core, the end part of the short shaft is fixed on the base bracket, and the middle part of the short shaft penetrates through a turning concentric hole of the driving slide block; the driving slide block is fixedly connected with a sliding executing mechanism, and the switch handle A is controlled to be opened and closed through the sliding executing mechanism. The operating mechanism has two operating modes of electric operation and manual operation. The circuit breaker has the advantages of simple structure, low height, small size, strong operability and high reliability, is low in overall height, and is particularly suitable for circuit breakers with requirements on product height.

Description

Excitation type switch operating device

Technical Field

The utility model relates to a low-voltage apparatus field especially relates to circuit breaker operating device field, is an excitation type switch operating means.

Background

At present, with the development of low-voltage electrical appliances and intelligent power grids, the functional requirements on circuit breakers are higher and higher, and particularly, strong requirements on intelligentization and communication are met, namely, more and more samples break through the traditional safety power utilization protection device, the principle of mechanical automation is adopted, and the small-sized, intelligent and remotely-operable safety power utilization products which are developed by combining the modern electronic control technology are combined.

The circuit breaker is an electric and power grid protection device capable of manually or electrically opening or closing a live circuit and automatically breaking an overload circuit or a short circuit, and an operating mechanism is the most critical core component for operating the circuit breaker. The most widely used circuit breaker operating mechanisms in the prior art are the overhead motor drive, cam and plate hook type structures. The structure has unreasonable places, such as overlarge volume, inconvenient manual switching operation, inaccurate opening and closing positioning and incapability of realizing instant braking, and brings potential safety hazards to the control of an electrical system.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is: the excitation switch operating device is simple in structure, low in height, small in size, strong in operability and high in reliability, and is suitable for a low-voltage plastic shell type circuit breaker.

The technical scheme of the utility model is that:

an excitation type switch operating device comprises a base bracket, an excitation coil mechanism and a sliding actuating mechanism, wherein the excitation coil mechanism and the sliding actuating mechanism are arranged on the base bracket; the excitation coil mechanism comprises a coil framework assembled on the base support, a static iron core and a movable iron core are assembled in a penetrating cavity of the coil framework, the static iron core is fixed at one end of the penetrating cavity, the movable iron core is sleeved on a concentric circular shaft of the static iron core through an iron core cavity of the movable iron core, and a permanent magnet is also assembled on the circular shaft of the static iron core; the excitation coil mechanism also comprises a driving slide block and a short shaft, the driving slide block is fixedly assembled with the movable iron core, the end part of the short shaft is fixed on the base bracket, and the middle part of the short shaft penetrates through a turning concentric hole of the driving slide block; the driving slide block is fixedly connected with a sliding executing mechanism, and the switch handle A is controlled to be opened and closed through the sliding executing mechanism.

Preferably, the sliding executing mechanism comprises a lower sliding block and two long shafts, the lower sliding block is a symmetrical bending piece, a following groove is formed in the bottom of the lower sliding block, and the lower sliding block and a driving sliding block in the excitation coil mechanism are fixed through fastening screws; the long shaft is fixed on the base bracket, and the middle part of the long shaft penetrates through concentric holes at two ends of the lower sliding block; the switch handle A is inserted into the follow-up groove.

Preferably, still include manual operation mechanism, manual operation mechanism is including being located the locating support on the slip actuating mechanism, assembling the special-shaped axle on the circular characteristic hole of locating support, and the locating support both ends are fixed through the major axis, still include and set up the last slider on the major axis with the lower slider symmetry, are provided with interior rack on the top shoe, and special-shaped axle one end riveting has the gear, and the gear cooperates with the interior rack of top shoe.

Preferably, the upper sliding block is located on the upper portion of the lower sliding block, the lower sliding block and the upper sliding block are symmetrically bent pieces, concentric holes are formed in two ends of the lower sliding block and the upper sliding block, and the middle of the long shaft penetrates through the concentric holes in the two ends of the lower sliding block and the upper sliding block.

Preferably, two ends of the coil framework are respectively provided with a first bulge and a second bulge, and the first bulges are assembled in a D-shaped cavity groove on the side surface of the base support; the second bulge is assembled on the positioning piece, and the positioning piece is fixed at the middle position of the base support.

Preferably, the static iron core is concentrically assembled in a penetrating cavity of the coil skeleton, and the bottom of the static iron core is aligned with the first bulge of the coil skeleton.

Furthermore, the magnet exciting coil device is applied to a circuit breaker operating mechanism, and the relationship between armature current and magnetic field intensity is changed by adopting a method of shunting current in a magnetic field coil by a parallel resistor or tapping on the magnetic field coil, so that the mechanism is electrically operated.

The utility model has the advantages that:

1. the utility model discloses an overall structure has simple structure, low height, small-size, strong operability, advantage that the reliability is high, and overall height is lower, is particularly useful for on the circuit breaker that highly has the requirement to the product.

2. Excitation formula operating device, have extremely fast velocity of movement and stronger output power to possess the ability that the circuit breaker divides fast, closes a floodgate, further provide effectual protection for the safety of electric wire netting.

Drawings

The invention will be further described with reference to the following drawings and examples:

fig. 1 is a schematic structural view of a field coil mechanism assembly of the present invention;

fig. 2 is a schematic structural view of the combination of the sliding actuator and the manual actuator of the present invention;

FIG. 3 is a schematic view of the base bracket structure of the present invention;

fig. 4 is a schematic diagram of the coil skeleton structure of the present invention;

fig. 5 is a comprehensive perspective view of the present invention.

Wherein: 008. a field coil mechanism; 005. a slide actuator; 002. a manual operating mechanism; 1. a base support; 101. a D-shaped cavity groove; 102. a bracket hole; 103. a concentric bore; 2. a coil bobbin; 201 a first protrusion; 202 through the cavity; 203. a second protrusion; 3. a positioning member; 302. A fixing hole; 4. driving the slide block; 401. turning concentric holes; 5. a stationary iron core; 501. a circular shaft; 6. a movable iron core; 601. an iron core cavity; 7. a permanent magnet; 8. a minor axis; 9. a lower slide block; 901. a random groove; 10. an upper slide block; 1001. an inner rack; 1002. a circular feature hole; 11. positioning the bracket; 12. a gear; 13. a profiled shaft; 14. a long axis; 20. fastening screws; A. a handle.

Detailed Description

Referring to fig. 1-5, the excitation switch operating device of the present invention includes a base bracket 1, and further includes a field coil mechanism 008 disposed on the base bracket 1, a sliding actuator 005, and a manual operating mechanism 002.

The excitation coil mechanism 008 comprises a coil framework 2 assembled on the base support, two ends of the coil framework 2 are respectively provided with a first protrusion 201 and a second protrusion 203, and the first protrusion 201 is assembled in a D-shaped cavity groove 101 on the side surface of the base support 1; the second protrusion 203 is assembled to the positioning member 3, and the positioning member 3 is fixed to the middle of the base frame 1. The through cavity 202 of the coil skeleton 2 is internally provided with a static iron core 5 and a movable iron core 6, the static iron core 5 is concentrically assembled in the through cavity 202 of the coil skeleton 2, and the bottom of the static iron core 5 is aligned with the first protrusion 201 of the coil skeleton 2. The movable iron core 6 is sleeved on a concentric circular shaft 501 of the static iron core 5 through an iron core cavity 601 of the movable iron core, and a permanent magnet 7 is also assembled on the circular shaft 501 of the static iron core 5; the excitation coil mechanism 008 further comprises a driving slide block 4 and a short shaft 8, the driving slide block 4 is fixedly assembled with the movable iron core 6, the end part of the short shaft 8 is fixed on the base support, and the middle part of the short shaft penetrates through a turning concentric hole 401 of the driving slide block 4; the driving slider 4 is fixedly connected with a sliding actuator 005, and the opening and closing of the switch handle A are controlled by the sliding actuator 005.

The sliding executing mechanism 005 comprises a lower sliding block 9 and two long shafts 14 which are positioned in the base support 1, the lower sliding block 9 is a symmetrical bending piece, the bottom of the lower sliding block is provided with a groove 901, and the lower sliding block is fixed with a driving sliding block 4 in the excitation coil mechanism 008 through a fastening screw 20; the long shaft 14 is fixed on the base bracket, and the middle part of the long shaft penetrates through concentric holes at two ends of the lower sliding block 9; the switch handle A is inserted into the following groove 901.

The manual operation mechanism 002 comprises a positioning support 11 positioned on the sliding execution mechanism 005 and a special-shaped shaft 13 assembled on the circular characteristic hole 1002 of the positioning support 11, two ends of the positioning support 11 are fixed through a long shaft 14, the manual operation mechanism further comprises an upper sliding block 10 symmetrically arranged on the long shaft 14 with a lower sliding block 9, an inner rack 1001 is arranged on the upper sliding block 10, one end of the special-shaped shaft 13 is riveted with a gear 12, and the gear 12 is matched with the inner rack 1001 of the upper sliding block 10. The upper sliding block 10 is located on the upper portion of the lower sliding block 9, the lower sliding block 9 and the upper sliding block 10 are symmetrically bent pieces, concentric holes are formed in two ends of the lower sliding block 9, and the middle of the long shaft 14 penetrates through the concentric holes in two ends of the upper sliding block 10 and the lower sliding block 9.

The present embodiment applies the field coil device to the circuit breaker operating mechanism, and adopts the method of shunting current in the field coil by using a parallel resistor or tapping on the field coil to change the relationship between armature current and magnetic field intensity, so as to be the electric operating power of the mechanism. The utility model discloses a concrete operation process as follows:

referring to fig. 3, when the field coil mechanism 008 executes a closing instruction, the movable iron core 6 is pushed forward (the dotted line is the original position) by the strong electromagnetic repulsion of the stationary iron core 5 and the movable iron core 6, the slider 4 is driven to be pushed forward by the short axis 8, the slider 4 is linked with the lower slider 9 to be pushed forward by the long axis 14, the lower slider 9 is the same moving part of the upper slider 10, that is, the profile-following groove 901 drives the handle a to move, so that the circuit breaker is closed.

On the contrary, as shown in fig. 4, when the excitation coil mechanism 008 executes a switching-off command, the movable iron core 6 is pushed toward the stationary iron core 5 (the dotted line is the original position) by the strong electromagnetic attraction of the stationary iron core 5 and the movable iron core 6, the slider 4 is driven to be pushed backward by the short axis 8, the slider 4 is linked with the lower slider 9 to be pushed forward by the long axis 14, the lower slider 9 is the same moving part of the upper slider 10, that is, the following groove 901 drives the handle a to move, so that the circuit breaker is switched off.

Referring to fig. 3 and 4, when a manual closing operation is required, the rotatable special-shaped shaft 13 rotates clockwise, the linkage gear 12 rotates clockwise, so that the upper slider 10 is driven to advance forward with the long shaft 14 as a guide, the lower slider 9 is a synchronous part of the upper slider 10, that is, the handle a is driven to move along with the groove 901, and the circuit breaker is closed.

On the contrary, when the manual opening operation is needed, the rotatable special-shaped shaft 13 rotates counterclockwise, the linkage gear 12 rotates counterclockwise, so as to drive the upper slider 10 to advance backward by taking the long shaft 14 as a guide, and the lower slider 9 is a moving part of the upper slider 10, namely, the handle a is driven to move along with the groove 901, so that the circuit breaker is closed.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. An excitation type switch operating device comprises a base bracket (1), and is characterized by also comprising an excitation coil mechanism (008) and a sliding actuating mechanism (005) which are arranged on the base bracket (1); the excitation coil mechanism (008) comprises a coil skeleton (2) assembled on a base support, a static iron core (5) and a movable iron core (6) are assembled in a penetrating cavity (202) of the coil skeleton (2), the static iron core (5) is fixed at one end of the penetrating cavity (202), the movable iron core (6) is sleeved on a concentric circular shaft (501) of the static iron core (5) through an iron core cavity (601) of the movable iron core, and a permanent magnet (7) is also assembled on the circular shaft (501) of the static iron core (5); the excitation coil mechanism (008) further comprises a driving sliding block (4) and a short shaft (8), the driving sliding block (4) is fixedly assembled with the movable iron core (6), the end part of the short shaft (8) is fixed on the base support, and the middle part of the short shaft penetrates through a turning concentric hole (401) of the driving sliding block (4); the driving slide block (4) is fixedly connected with a sliding execution mechanism (005), and the opening and closing of the switch handle (A) are controlled through the sliding execution mechanism (005).

2. Excitation switch operating device according to claim 1, characterized in that the sliding actuator (005) comprises a lower slider (9) and two long shafts (14) in the base frame (1), the lower slider (9) is a symmetrical bending piece, the bottom of the lower slider is provided with a following groove (901) and is fixed with the driving slider (4) in the excitation coil mechanism (008) through a fastening screw (20); the long shaft (14) is fixed on the base bracket, and the middle part of the long shaft penetrates through concentric holes at two ends of the lower sliding block (9); the switch handle (A) is inserted into the following groove (901).

3. The excitation switch operating device according to claim 2, further comprising a manual operating mechanism (002), wherein the manual operating mechanism (002) comprises a positioning bracket (11) located on the sliding actuator (005), a special-shaped shaft (13) assembled on a circular characteristic hole (1002) of the positioning bracket (11), two ends of the positioning bracket (11) are fixed through a long shaft (14), the excitation switch operating device further comprises an upper sliding block (10) symmetrically arranged on the long shaft (14) with the lower sliding block (9), an inner rack (1001) is arranged on the upper sliding block (10), a gear (12) is riveted at one end of the special-shaped shaft (13), and the gear (12) is matched with the inner rack (1001) of the upper sliding block (10).

4. Excitation switch operating device according to claim 3, characterized in that the upper slider (10) is located on the upper part of the lower slider (9), both the lower slider (9) and the upper slider (10) are symmetrical bent pieces, both ends are provided with concentric holes, and the middle part of the long shaft (14) passes through the concentric holes on both ends of the lower slider (9) and the upper slider (10).

5. Excited switch operating device according to claim 4, characterized in that the coil bobbin (2) has a first protrusion (201) and a second protrusion (203) at both ends, respectively, the first protrusion (201) fitting into the D-shaped cavity groove (101) at the side of the base bracket (1); the second bulge (203) is assembled on the positioning piece (3), and the positioning piece (3) is fixed at the middle position of the base support (1).

6. Excited switch operating device according to claim 5, characterized in that the static core (5) fits concentrically into the through cavity (202) of the bobbin (2), the bottom of the static core (5) being aligned with the first protrusion (201) of the bobbin (2).