CN210925927U - Excitation type switch operating device - Google Patents

Abstract

The utility model discloses an excitation type switch operation device, which comprises a base bracket, an excitation coil mechanism, a sliding executive mechanism and a manual operation mechanism arranged on the base bracket. The excitation coil mechanism includes a coil skeleton assembled on the base bracket, a static iron core and a moving iron core are assembled in the through cavity of the coil skeleton, and a permanent magnet is assembled on the circular shaft of the static iron core; the excitation coil mechanism also includes Driving slider and a short shaft, the driving slider is fixedly assembled with the moving iron core, the end of the short shaft is fixed on the base bracket, and the middle part passes through the turning concentric hole of the driving slider; the driving slider is fixedly connected to the sliding actuator, Control the opening and closing of the switch handle A by sliding the actuator. The operating mechanism has two operating modes of electric operation and manual operation at the same time. It has the advantages of simple structure, low height, small size, strong operability and high reliability, and the overall height is low, especially suitable for circuit breakers that require product height.

Description

An excitation switch operating device

technical field

The utility model relates to the field of low-voltage electrical appliances, in particular to the field of circuit breaker operating mechanisms, which is an excitation type switch operating device.

Background technique

At present, with the development of low-voltage electrical appliances and intelligent power grids, the functional requirements for circuit breakers are getting higher and higher, especially for intelligence and communication. The electrical protection device adopts the principle of mechanical automation and is a miniaturized, intelligent and remotely operable safe electrical product developed with modern electronic control technology.

A circuit breaker is an electrical and grid protection device that can manually or electrically open or close a live circuit and automatically disconnect an overload circuit or a short circuit, and the 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 top-mounted motor-driven, cam and plate-hook structures. There are unreasonable places in this structure, such as excessive volume, inconvenient manual switching, inaccurate opening and closing positioning, and inability to achieve instantaneous braking, which brings safety hazards to the electrical system control.

Utility model content

The purpose of the utility model is to provide an excitation switch operating device with simple structure, low height, small size, strong operability and high reliability, which is suitable for low-voltage plastic case circuit breakers.

The technical scheme of the present utility model is:

An excitation switch operating device includes a base bracket, and also includes an excitation coil mechanism and a sliding actuator arranged on the base bracket; the excitation coil mechanism includes a coil skeleton assembled on the base bracket, and the through-cavity of the coil skeleton is assembled in the cavity There are static iron core and moving iron core, the static iron core is fixed at one end of the through cavity, the moving iron core is sleeved on the circular shaft of the concentric static iron core through its iron core cavity, and the circular shaft of the static iron core is also equipped with a permanent magnet The excitation coil mechanism also includes a driving slider and a short shaft, the driving slider is fixedly assembled with the moving iron core, the end of the short shaft is fixed on the base bracket, and the middle part passes through the turning concentric hole of the driving slider; The slider is fixedly connected to the sliding actuator, and the switch handle A is controlled to open and close through the sliding actuator.

Preferably, the sliding actuator includes a lower sliding block and two long shafts located in the base bracket, the lower sliding block is a symmetrical bending part, and the bottom is provided with a follow-up groove, which is tightly connected with the driving sliding block in the excitation coil mechanism. The long shaft is fixed on the base bracket, and the middle part passes through the concentric holes at both ends of the lower slider; the switch handle A is inserted into the groove with the shape.

Preferably, it also includes a manual operation mechanism, the manual operation mechanism includes a positioning bracket located on the sliding actuator, a special-shaped shaft assembled on the circular feature hole of the positioning bracket, the two ends of the positioning bracket are fixed by the long shaft, and the positioning bracket is connected with the lower part. The sliding block is symmetrically arranged on the upper sliding block on the long axis, the upper sliding block is provided with an internal gear rack, one end of the special-shaped shaft is riveted with a gear, and the gear is matched with the internal gear rack of the upper sliding block.

Preferably, the upper sliding block is located on the upper part of the lower sliding block, the lower sliding block and the upper sliding block are both symmetrical bending parts, both ends are provided with concentric holes, and the middle part of the long axis passes through the lower sliding block and the upper sliding block. concentric holes at the end.

Preferably, both ends of the coil bobbin are provided with a first protrusion and a second protrusion respectively, the first protrusion is assembled into the D-shaped cavity groove on the side of the base bracket; the second protrusion is assembled on the positioning member, and the positioning member Fixed in the middle of the base bracket.

Preferably, the static iron core is concentrically assembled into the through cavity of the coil bobbin, and the bottom of the static iron core is aligned with the first protrusion of the coil bobbin.

Further, the excitation coil device is applied to the circuit breaker operating mechanism, and the current in the magnetic field coil is shunted by a parallel resistance, or the method of tapping on the magnetic field coil is used to change the relationship between the armature current and the magnetic field strength, which is the electric operation of the mechanism. power.

The advantages of the utility model are:

1. The overall structure of the present utility model has the advantages of simple structure, low height, small size, strong operability and high reliability, and the overall height is relatively low, which is especially suitable for circuit breakers that require product height.

2. The excitation-type operating mechanism of the present invention has extremely fast movement speed and strong output force, so that the circuit breaker can be quickly opened and closed, and further provides effective protection for the safety of the power grid.

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the utility model is further described:

1 is a schematic structural diagram of an excitation coil mechanism assembly of the present invention;

2 is a schematic structural diagram of the combination of a sliding actuator and a manual mechanism of the present invention;

Fig. 3 is the structural schematic diagram of the base bracket of the present invention;

4 is a schematic diagram of a coil bobbin structure of the present invention;

FIG. 5 is a comprehensive perspective view of the utility model.

Among them: 008, excitation coil mechanism; 005, sliding actuator; 002, manual operation mechanism; 1, base bracket; 101, D-shaped cavity; 102, bracket hole; 103, concentric hole; 2, coil frame; 201 first Protrusion; 202 through the cavity; 203, second protrusion; 3, positioning piece; 302, fixed hole; 4, driving slider; 401, turning concentric hole; 5, static iron core; 501, round shaft; Iron core; 601, iron core cavity; 7, permanent magnet; 8, short shaft; 9, lower slider; 901, follower groove; 10, upper slider; 1001, internal rack; 1002, circular feature hole; 11. Positioning bracket; 12. Gear; 13. Special-shaped shaft; 14. Long shaft; 20. Fastening screw; A. Handle.

Detailed ways

Referring to FIGS. 1-5 , an excitation switch operating device of the present invention includes a base bracket 1 , an excitation coil mechanism 008 , a sliding actuator 005 and a manual operation mechanism 002 arranged on the base bracket 1 .

The excitation coil mechanism 008 includes a coil bobbin 2 assembled on the base bracket, the two ends of the coil bobbin 2 are respectively provided with a first protrusion 201 and a second protrusion 203, and the first protrusion 201 is assembled to the side of the base bracket 1 . The second protrusion 203 is assembled on the positioning member 3 , and the positioning member 3 is fixed at the middle position of the base bracket 1 . A static iron core 5 and a moving iron core 6 are assembled in the through cavity 202 of the coil bobbin 2 . The static iron core 5 is concentrically assembled into the through cavity 202 of the coil bobbin 2 , and the bottom of the static iron core 5 is aligned with the first part of the coil bobbin 2 A protrusion 201 . The moving iron core 6 is sleeved on the circular shaft 501 of the concentric static iron core 5 through its iron core cavity 601, and the circular shaft 501 of the static iron core 5 is also equipped with a permanent magnet 7; the excitation coil mechanism 008 also includes a driving slider. Block 4 and a short shaft 8, the driving slide 4 is fixedly assembled with the moving iron core 6, the end of the short shaft 8 is fixed on the base bracket, and the middle part passes through the turning concentric hole 401 of the driving slide 4; the driving slide 4 is fixed Connect the sliding actuator 005, and control the opening and closing of the switch handle A through the sliding actuator 005.

The sliding actuator 005 includes a lower sliding block 9 and two long shafts 14 located in the base bracket 1 , the lower sliding block 9 is a symmetrical bending part, and the bottom has a follow-up groove 901, which is connected with the drive in the excitation coil mechanism 008 The sliding block 4 is fixed by tightening screws 20; the long shaft 14 is fixed on the base bracket, and the middle part passes through the concentric holes at both ends of the lower sliding block 9; the switch handle A is inserted into the groove 901.

The manual operating mechanism 002 includes a positioning bracket 11 located on the sliding actuator 005, a special-shaped shaft 13 assembled on the circular feature hole 1002 of the positioning bracket 11, and the two ends of the positioning bracket 11 are fixed by the long shaft 14, and also includes a sliding shaft. The block 9 is symmetrically arranged on the upper slider 10 on the long axis 14, the upper slider 10 is provided with an internal rack 1001, one end of the special-shaped shaft 13 is riveted with a gear 12, and the gear 12 and the inner rack 1001 of the upper slider 10 Cooperate. The upper sliding block 10 is located on the upper part of the lower sliding block 9. Both the lower sliding block 9 and the upper sliding block 10 are symmetrical bending parts, and both ends are provided with concentric holes. The middle of the long axis 14 passes through the lower sliding block 9 and the upper Concentric holes at both ends of the slider 10.

In this embodiment, the excitation coil device is applied to the circuit breaker operating mechanism, and the parallel resistance is used to shunt the current in the magnetic field coil, or the method of tapping on the magnetic field coil is used to change the relationship between the armature current and the magnetic field strength. Operating power. The concrete operation process of the present utility model is as follows:

As shown in FIG. 3 , when the excitation coil mechanism 008 executes the closing command, the moving iron core 6 is pushed forward by the strong electromagnetic repulsion between the static iron core 5 and the moving iron core 6 (the dotted line is the original position), driving the slider 4 Take the short axis 8 as the guide to advance forward, the slider 4 is linked with the lower slider 9 to advance forward with the long axis 14 as the guide, the lower slider 9 is the moving part of the upper slider 10, that is, the handle A is driven by the groove 901 movement to close the circuit breaker.

On the contrary, as shown in FIG. 4 , when the excitation coil mechanism 008 executes the opening command, the moving iron core 6 is pushed toward the static iron core 5 by the strong electromagnetic attraction force of the static iron core 5 and the moving iron core 6 (the dotted line is the original position ), drive the slider 4 to advance backward with the short axis 8 as the guide, the slider 4 is linked with the lower slider 9 to advance forward with the long axis 14 as the guide, and the lower slider 9 is the moving part of the upper slider 10, that is, with The groove 901 drives the handle A to move, thereby opening the circuit breaker.

As shown in Figures 3 and 4, when manual closing operation is required, the rotatable special-shaped shaft 13 rotates clockwise, and the linkage gear 12 rotates clockwise, thereby driving the upper slider 10 to move forward with the long shaft 14 as the guide, and slide down. The block 9 is the co-moving part of the upper slider 10, that is, the handle A moves with the groove 901, thereby closing the circuit breaker.

On the contrary, when manual opening operation is required, the rotatable special-shaped shaft 13 rotates counterclockwise, and the linkage gear 12 rotates counterclockwise, thereby driving the upper slider 10 to push backwards guided by the long axis 14, and the lower slider 9 is the upper slider 10. The co-moving member, that is, with the groove 901, drives the handle A to move, thereby closing the circuit breaker.

The above-mentioned embodiments merely illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims (6)

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).

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