CN217114258U

CN217114258U - Auxiliary switch of circuit breaker

Info

Publication number: CN217114258U
Application number: CN202220294805.1U
Authority: CN
Inventors: 易梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-15
Filing date: 2022-02-15
Publication date: 2022-08-02
Anticipated expiration: 2032-02-15

Abstract

An auxiliary switch of a circuit breaker. The problems that the structure of the existing auxiliary switch in a frame circuit breaker adopting a double-contact auxiliary switch is complex, the cost is high and the occupied space is large are solved. It includes the support body, the support body on be equipped with ejector pin, guide and auxiliary switch group, auxiliary switch group including a plurality of micro-gap switches that set up side by side, the ejector pin on be equipped with the roof, the ejector pin pass the guide and with the guide cooperation of sliding, the ejector pin through the vertical motion control of drive roof thereby micro-gap switch realize the signal switching. The beneficial effects of the utility model are that, the micro-gap switch that adopts to set up side by side can reliably realize the signal switching as auxiliary switch, and the micro-gap switch that sets up side by side simultaneously makes signal transmission synchronization performance good, and has simplified the structure and the assembly of product greatly for product simple structure, occupation space are few, with low costs, convenient assembling, action are reliable, long service life.

Description

Auxiliary switch of circuit breaker

Technical Field

The utility model relates to an omnipotent circuit breaker, concretely relates to auxiliary switch of circuit breaker.

Background

The universal circuit breaker is also called frame type circuit breaker, and is a mechanical switch electric appliance which can connect, bear and break the current under the normal circuit condition, and can also connect, bear and break the current for a certain time under the specified abnormal circuit condition. Conventional circuit breakers are used to distribute electrical energy and to protect lines and power equipment from overloads, undervoltages, short circuits, etc. Such circuit breakers typically have a steel frame with all the components mounted within the frame. The high-capacity high-voltage switch has large capacity, can be provided with a release with multiple functions and a plurality of auxiliary contacts, has high breaking capacity and thermal stability, and is commonly used in places requiring high breaking capacity and selective protection.

The auxiliary switch of the conventional universal circuit breaker usually adopts a double-contact auxiliary switch, the double-contact auxiliary switch is complex in structure, high in cost, large in occupied space, and not beneficial to assembly of other parts, and in order to make contacts reliably connected, complex structure transmission is usually adopted, so that a mechanism driving the double-contact auxiliary switch also occupies large space, and is not beneficial to installation and assembly of other parts, and the double-contact auxiliary switch is usually arranged in the front and back, when being switched to act, certain time difference can exist in signal output, certain adverse effect is brought to the mechanism, and the product precision is poor.

SUMMERY OF THE UTILITY MODEL

For solving current auxiliary switch among the background art and adopting the two contact auxiliary switch inner structure complicacy at the frame circuit breaker, the cost is higher, the space occupies big problem, the utility model provides an auxiliary switch of circuit breaker.

The technical scheme of the utility model is that: the utility model provides an auxiliary switch of circuit breaker, includes the support body, the support body on be equipped with ejector pin, guide and auxiliary switch group, auxiliary switch group including a plurality of micro-gap switches that set up side by side, the ejector pin on be equipped with the roof, the ejector pin pass the guide and with the guide cooperation of sliding, thereby the ejector pin pass through the vertical motion control of drive roof micro-gap switch realize the signal switching.

As a further improvement of the present invention, the top plate is fixed to be disposed on the upper portion of the ejector rod, and the ejector rod passes through the guide member and is moved linearly up and down relative to the guide member under the action of external force.

As a further improvement, the ejector pin on be equipped with the piece that resets that is used for the ejector pin to reset, the piece cover that resets locate the lower part of ejector pin and offset with the guide.

As a further improvement of the utility model, the microswitch comprises an elastic part, and the ejector rod drives the top plate to move vertically along the guide part under the action of external force to push the elastic part of the microswitch to move; the reset piece drives the top plate to reset through the ejector rod when the external force of the ejector rod disappears.

As a further improvement, the micro-gap switch include first elasticity foot and second elasticity foot, the roof be "T" type setting, the horizontal portion of T type roof be used for with micro-gap switch's second elasticity foot cooperate and be used for driving the action of second elasticity foot, the vertical portion of T type roof is used for fixing on the ejector pin.

As a further improvement, first elasticity foot and second elasticity foot mutually support and be "V" font setting, first elasticity foot inconsistent with micro-gap switch, second elasticity foot be used for inconsistent with the roof, first elasticity foot and second elasticity foot intersect in micro-gap switch's the tip outside.

As a further improvement of the present invention, the top rod upper portion is provided with a through hole, the top plate is inserted into the through hole of the top rod and is fixedly connected with the top rod through a fixing member, and the lower portion of the top rod is provided with a roller for reducing frictional resistance.

As a further improvement, the guide has two, and two guides all are "U" style of calligraphy and set up, two guides mutually support and form "mouthful" style of calligraphy.

As a further improvement, the support body include two blocks of curb plates, the curb plate on be equipped with the erection column, different micro-gap switch is connected through the erection column, is equipped with the baffle between the adjacent micro-gap switch.

As a further improvement of the utility model, the roof locate the top of guide, the curb plate on be equipped with guiding hole or guide way, the roof insert the guiding hole or the guide way of curb plate in and with the cooperation of sliding of curb plate.

The beneficial effects of the utility model are that, the micro-gap switch that adopts to set up side by side can reliably realize the signal switching as auxiliary switch, and the micro-gap switch that sets up side by side simultaneously makes signal transmission synchronization performance good, and has simplified the structure and the assembly of product greatly for product simple structure, occupation space are few, with low costs, convenient assembling, action are reliable, long service life.

Drawings

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

Fig. 2 is an explosion structure diagram of the embodiment of the present invention.

Fig. 3 is a schematic structural diagram of the microswitch 5 in fig. 2.

Fig. 4 is a schematic view of the structure of the guide 3 in fig. 2.

Fig. 5 is a schematic structural view of the top plate 6 in fig. 2.

In the figure, 1, a frame body; 11. a side plate; 111. a guide hole; 12. mounting a column; 13. a partition plate; 2. a top rod; 21. a through hole; 22. a fixing member; 23. a roller; 3. a guide member; 4. an auxiliary switch group; 5. a microswitch; 51. an elastic portion; 511. a first elastic leg; 512. a second elastic leg; 52. a bump; 6. a top plate; 61. a transverse portion; 62. a vertical portion; 7. a reset member.

Detailed Description

The embodiments of the present invention will be further explained with reference to the accompanying drawings:

shown by figure 1 with reference to figures 2-5, an auxiliary switch of circuit breaker, includes support body 1, support body 1 on be equipped with ejector pin 2, guide 3 and auxiliary switch group 4, auxiliary switch group 4 include a plurality of micro-gap switch 5 that set up side by side, ejector pin 2 on be equipped with roof 6, ejector pin 2 pass guide 3 and with the cooperation of sliding of guide 3, ejector pin 2 through the control of the vertical motion of drive roof 6 micro-gap switch 5 switch thereby realize the signal switching. The beneficial effects of the utility model are that, the micro-gap switch that adopts to set up side by side can reliably realize the signal switching as auxiliary switch, and the micro-gap switch that sets up side by side simultaneously makes signal transmission synchronization performance good, and has simplified the structure and the assembly of product greatly for product simple structure, occupation space are few, with low costs, convenient assembling, action are reliable, long service life.

The top plate 6 is fixedly arranged on the upper part of the ejector rod 2, and the ejector rod 2 penetrates through the guide piece 3 and moves up and down linearly relative to the guide piece 3 under the action of external force. Specifically, the top plate can move linearly up and down relative to the guide piece in the hole of the guide piece, so that the guide piece can also guide the top rod, the structure is simple, and the control is convenient and reliable.

The push rod 2 is provided with a resetting piece 7 for resetting the push rod 2, and the resetting piece 7 is sleeved on the lower part of the push rod 2 and is propped against the guide piece 3. The setting of piece that resets is convenient for ejector pin, roof and resets. Specifically, the microswitch 5 comprises an elastic part 51, and the ejector rod 2 drives the top plate 6 to vertically move along the guide piece 3 under the action of external force to push the elastic part 51 of the microswitch 5 to move; the reset piece 7 drives the top plate 6 to reset through the ejector rod 2 when the external force of the ejector rod disappears. Therefore, the microswitch can be reliably switched, and the signal switching of the product can be reliably controlled. The ejector rod drives the top plate to move up and down linearly to realize the conversion of normally open and normally closed contacts of the micro switch, so that the function of an auxiliary switch switching circuit is realized.

The microswitch 5 comprises a first elastic foot 511 and a second elastic foot 512, the top plate 6 is arranged in a T shape, the transverse part 61 of the T-shaped top plate 6 is used for being matched with the second elastic foot 512 of the microswitch 5 to drive the second elastic foot 512 to act, and the vertical part 62 of the T-shaped top plate 6 is used for being fixed on the ejector rod 2. Specifically, the first elastic leg and the second elastic leg form an elastic part of the micro switch, and more specifically, the micro switch 5 is provided with a projection 52, and the projection enables the first elastic leg to be slightly away from the bottom surface of the micro switch, so that elastic deformation is facilitated, and damage to the micro switch during over-movement is avoided. The structure can be reliably connected with the ejector rod through the vertical part of the T-shaped top plate, the transverse part of the T-shaped top plate can reliably drive the micro switches to synchronously act, and the product synchronization performance is good.

The first elastic foot 511 and the second elastic foot 512 are matched with each other to form a V-shaped arrangement, the first elastic foot 511 is abutted to the microswitch 5, the second elastic foot 512 is abutted to the top plate 6, and the first elastic foot 511 and the second elastic foot 512 are intersected outside the end part of the microswitch 5. Such a configuration makes the microswitch signal switching reliable. Specifically, the microswitch is a spring plate type microswitch.

The upper part of the ejector rod 2 is provided with a through hole 21, the top plate 6 is inserted into the through hole 21 of the ejector rod 2 and is fixedly connected with the ejector rod 2 through a fixing piece 22, and the lower part of the ejector rod 2 is provided with a roller 23 for reducing friction resistance. The structure is convenient for the movement of the ejector rod, reduces the resistance, is convenient for the fixation of the top plate, and specifically, the fixing piece is arranged in the countersunk hole of the ejector rod, so that the interference of the ejector rod during the movement is avoided.

Guide 3 have two, and two guide 3 all are "U" style of calligraphy and set up, two guide 3 mutually support and form "mouthful" style of calligraphy. Specifically, the frame body 1 comprises two side plates 11, mounting columns 12 are arranged on the side plates 11, different micro switches 5 are connected through the mounting columns 12, and a partition plate 13 is arranged between every two adjacent micro switches 5. The guide piece is arranged between the two side plates, so that the strength of the product is increased, meanwhile, due to the arrangement of the shape like the Chinese character 'kou', the material consumption of the product is reduced, and meanwhile, the ejector rod can be reliably guided. More specifically, the top plate 6 is disposed above the guide member 3, the side plate 11 is provided with a guide hole 111 or a guide groove, and the top plate 6 is inserted into the guide hole 111 or the guide groove of the side plate 11 and slidably engaged with the side plate 11. The arrangement of the guide holes or the guide grooves on the side plates can also play a role in guiding the movement of the top plate.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.

Claims

1. The auxiliary switch of the circuit breaker comprises a frame body (1) and is characterized in that an ejector rod (2), a guide piece (3) and an auxiliary switch group (4) are arranged on the frame body (1), the auxiliary switch group (4) comprises a plurality of micro switches (5) which are arranged in parallel, a top plate (6) is arranged on the ejector rod (2), the ejector rod (2) penetrates through the guide piece (3) and is in sliding fit with the guide piece (3), and the ejector rod (2) controls the micro switches (5) to switch through driving the vertical movement of the top plate (6) so as to realize signal switching.

2. The auxiliary switch of a circuit breaker according to claim 1, wherein the top plate (6) is fixedly arranged on the upper portion of the push rod (2), and the push rod (2) passes through the guide member (3) and moves linearly up and down relative to the guide member (3) under the action of external force.

3. The auxiliary switch of the circuit breaker according to claim 1, characterized in that the push rod (2) is provided with a reset member (7) for resetting the push rod (2), and the reset member (7) is sleeved on the lower part of the push rod (2) and abuts against the guide member (3).

4. The auxiliary switch of the circuit breaker according to claim 3, characterized in that the microswitch (5) comprises an elastic part (51), the top plate (6) is driven by the top rod (2) to move vertically along the guide (3) under the action of external force to push the elastic part (51) of the microswitch (5) to move; the reset piece (7) drives the top plate (6) to reset through the ejector rod (2) when the external force of the ejector rod disappears.

5. The auxiliary switch of the circuit breaker according to claim 1, wherein the microswitch (5) comprises a first elastic pin (511) and a second elastic pin (512), the top plate (6) is arranged in a T shape, a transverse part (61) of the T-shaped top plate (6) is used for being matched with the second elastic pin (512) of the microswitch (5) to drive the second elastic pin (512) to move, and a vertical part (62) of the T-shaped top plate (6) is used for being fixed on the ejector rod (2).

6. The auxiliary switch of the circuit breaker as claimed in claim 5, wherein said first resilient leg (511) and said second resilient leg (512) are engaged with each other to form a "V" shape, said first resilient leg (511) is abutted against said microswitch (5), said second resilient leg (512) is abutted against said top plate (6), and said first resilient leg (511) and said second resilient leg (512) intersect at the outer side of the end of said microswitch (5).

7. The auxiliary switch of a circuit breaker according to claim 1, characterized in that the upper portion of the push rod (2) is provided with a through hole (21), the top plate (6) is inserted into the through hole (21) of the push rod (2) and is fixedly connected with the push rod (2) through a fixing member (22), and the lower portion of the push rod (2) is provided with a roller (23) for reducing frictional resistance.

8. An auxiliary switch of a circuit breaker according to claim 1 or 2, characterized in that there are two guide members (3), and the two guide members (3) are arranged in a "U" shape, and the two guide members (3) are mutually matched to form a "square".

9. The auxiliary switch of the circuit breaker according to claim 1, characterized in that the frame body (1) comprises two side plates (11), the side plates (11) are provided with mounting posts (12), different micro switches (5) are connected through the mounting posts (12), and a partition plate (13) is arranged between adjacent micro switches (5).

10. The auxiliary switch of claim 9, wherein the top plate (6) is disposed above the guide member (3), the side plate (11) is provided with a guide hole (111) or a guide groove, and the top plate (6) is inserted into the guide hole (111) or the guide groove of the side plate (11) and slidably engaged with the side plate (11).