CN217468319U

CN217468319U - Auxiliary switch device and universal circuit breaker

Info

Publication number: CN217468319U
Application number: CN202220819981.2U
Authority: CN
Inventors: 易梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-09-20
Anticipated expiration: 2032-04-11

Abstract

An auxiliary switch device and a universal circuit breaker. The problem of current frame circuit breaker with two contact auxiliary switch structure complicacies, the cost is higher, the space occupies greatly, the synchronism is poor is solved. It includes circuit breaker body, operating device and auxiliary switch device, auxiliary switch device include the mounting bracket, the mounting bracket on be equipped with rocking arm and auxiliary switch group, auxiliary switch group including a plurality of micro-gap switches that set up side by side, every micro-gap switch all includes drive foot, public binding post and conversion binding post, the rocking arm include drive plate and actuating arm, drive plate contradict with every micro-gap switch's drive foot homogeneous phase, the rocking arm drive the drive plate through rotating when having the primary importance when installing and actuating arm atress and press down the second place that the drive foot made normally open normally closed contact carry out the conversion. The utility model has the advantages of less occupied space, low cost, convenient assembly, reliable action, long service life and the like.

Description

Auxiliary switch device and universal circuit breaker

Technical Field

The utility model relates to an universal circuit breaker, concretely relates to auxiliary switch device and universal 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 frame in which all of the components are mounted. 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.

Its auxiliary switch of current universal circuit breaker adopts two contact auxiliary switch usually, two contact auxiliary switch structure is complicated, the cost is higher, the space occupies greatly, be unfavorable for the assembly of other spare parts, and in order to make the contact reliably put through, adopt complicated structure transmission usually, thereby it is big also to make the mechanism that drives compound auxiliary switch occupy space, be unfavorable for the installation assembly of other spare parts, and two contact auxiliary switch sets up around usually, when being switched over the action, signal output still can have certain time difference, bring certain adverse effect to the mechanism, make the product precision poor.

SUMMERY OF THE UTILITY MODEL

For solving among the background art that current frame circuit breaker is with two contact auxiliary switch structure complicacies, the cost is higher, the space occupies greatly, the poor problem of synchronism, the utility model provides an auxiliary switch device and universal circuit breaker.

The technical scheme of the utility model is that: the utility model provides an auxiliary switch device, includes the mounting bracket, the mounting bracket on be equipped with rocking arm and auxiliary switch group, auxiliary switch group including a plurality of micro-gap switches that set up side by side, every micro-gap switch all includes drive foot, public binding post and is equipped with the conversion binding post of normally opening normally closed contact, the rocking arm include drive plate and actuating arm, drive plate and every micro-gap switch's drive foot homogeneous phase contradict, the rocking arm drive the drive plate through rotating when having the first position when installing and actuating arm atress press down the second position that the drive foot made normally opening normally closed contact carry out the conversion.

As a further improvement, the mounting bracket on be equipped with first erection column, different micro-gap switch all is equipped with the baffle between the adjacent micro-gap switch on being fixed in the mounting bracket through first erection column.

As a further improvement of the utility model, still including the piece that resets, the rocking arm on be equipped with the installation axle, the installation axle insert on the mounting bracket and with mounting bracket rotatable coupling, the piece that resets offset with the rocking arm and have the motion trend that the drive rocking arm tends to the first position.

As a further improvement, the utility model also includes the piece that resets, the rocking arm cover locate the installation off-axial, the installation axle insert on the mounting bracket and be connected with the mounting bracket, the piece that resets offset with the rocking arm and have the motion trend that the drive rocking arm tends to the first position.

As a further improvement, the drive foot include first elasticity foot and second elasticity foot, first elasticity foot and second elasticity foot mutually support and be the setting of "Z" type of inversion, first elasticity foot be connected with micro-gap switch, second elasticity foot be used for inconsistent with the rocking arm, micro-gap switch on be equipped with and be used for switching the switching lug that normally opens the normally closed contact by first elasticity foot is pressed.

As a further improvement, the mounting bracket have two and locate the outside of auxiliary switch group, the mounting bracket on be equipped with the fixed mounting plane of installation of being convenient for, micro-gap switch's long limit perpendicular to mounting plane sets up.

As a further improvement of the utility model, the drive plate on be equipped with the drive division of being convenient for press the drive foot, the drive division be circular or the arc locate the tip of drive plate.

The utility model provides a universal circuit breaker, includes circuit breaker body, operating device and foretell auxiliary switch device, operating device fixed mounting on the circuit breaker body, auxiliary switch device fixed mounting on operating device, operating device include the axis of rotation, the axis of rotation on be equipped with and be used for driving the disconnected connecting rod of circuit breaker body sound contact switch-on, the connecting rod on be provided with and be used for driving rocking arm pivoted arch.

As a further improvement of the utility model, when the circuit breaker is in a closing state, the protrusion of the connecting rod is in contact with the driving arm of the rocker arm so as to drive the normally open normally closed contact of the microswitch conversion connecting terminal to perform conversion; when the circuit breaker is in a brake-off state, the bulge of the connecting rod is separated from the driving arm of the rocker arm, and the normally-open normally-closed contact of the microswitch is restored to the original state.

As a further improvement, operating device on be equipped with the fixed plate, the axis of rotation stretch out outside operating device, the circuit breaker body on be equipped with and be used for the spacing stopper of axis of rotation, auxiliary switch device locate the fixed plate department of axis of rotation outside top, the actuating arm pass fixed plate and slant setting.

The beneficial effects of the utility model are that, the micro-gap switch that adopts to set up side by side is as auxiliary switch group, can reliably realize the signal switching, the micro-gap switch that sets up side by side simultaneously makes signal transmission synchronization performance good, and the simple structure of simplifying auxiliary switch group and operating device greatly, it uses to reduce the material, reduce cost by a wide margin, and simultaneously, the switching reliability of the disconnected reliability of circuit breaker and auxiliary switch group has been improved, make the product have simple structure, occupation space is few, and is with low costs, convenient assembling, the action is reliable, long service life, etc.

Drawings

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

Fig. 2 is a schematic view of the structure of the auxiliary switching device 3 shown in fig. 1.

Fig. 3 is a schematic diagram of the exploded structure of fig. 2.

Fig. 4 is a schematic structural diagram of the microswitch 7 in fig. 3.

Fig. 5 is a schematic structural view of the rocker arm 5 in fig. 3.

In the figure, 1, a circuit breaker body; 11. a limiting block; 2. an operating mechanism; 21. a rotating shaft; 22. a connecting rod; 221. a protrusion; 23. a fixing plate; 3. an auxiliary switching device; 4. a mounting frame; 41. a first mounting post; 42. a partition plate; 43. a mounting plane; 5. a rocker arm; 51. a drive plate; 511. a drive section; 52. a drive arm; 53. installing a shaft; 6. an auxiliary switch group; 7. a microswitch; 71. a drive foot; 711. a first elastic leg; 712. a second elastic leg; 713. a switching bump; 72. a common connection terminal; 73. converting the wiring terminal; 8. a reset member.

Detailed Description

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

as shown in fig. 1 and fig. 2-5, a universal circuit breaker includes a breaker body 1, an operating mechanism 2 and an auxiliary switch device 3, the auxiliary switch device includes a mounting frame 4, the mounting frame 4 is provided with a rocker 5 and an auxiliary switch group 6, the auxiliary switch group 6 includes a plurality of microswitches 7 arranged in parallel, each microswitches 7 includes a driving pin 71, a common connecting terminal 72 and a switching connecting terminal 73 provided with a normally open and normally closed contact, the rocker 5 includes a driving plate 51 and a driving arm 52, the driving plate 51 is abutted against the driving pin 71 of each microswitching 7, the rocker 5 has a first position during installation and a second position where the driving plate 51 is driven to press the driving pin 71 through rotation when the driving arm 52 is stressed so as to switch the normally open and normally closed contact, the operating mechanism 2 is fixedly mounted on the breaker body 1, the auxiliary switch device 3 is fixedly installed on the operating mechanism 2, the operating mechanism 2 comprises a rotating shaft 21, a connecting rod 22 for driving a moving contact and a static contact of a breaker body to be connected and disconnected is arranged on the rotating shaft 21, and a protrusion 221 for driving the rocker arm 5 to rotate is arranged on the connecting rod 22. The beneficial effects of the utility model are that, the micro-gap switch that adopts to set up side by side is as auxiliary switch group, can reliably realize the signal switching, the micro-gap switch that sets up side by side simultaneously makes signal transmission synchronization performance good, and the simple structure of simplifying auxiliary switch group and operating device greatly, it uses to reduce the material, reduce cost by a wide margin, and simultaneously, the switching reliability of the disconnected reliability of circuit breaker and auxiliary switch group has been improved, make the product have simple structure, occupation space is few, and is with low costs, convenient assembling, the action is reliable, long service life, etc.

The mounting bracket 4 on be equipped with first erection column, different micro-gap switch 7 all are fixed in on the mounting bracket 4 through first erection column 41, be equipped with baffle 42 between the adjacent micro-gap switch 7. Different micro-switches are connected in series through the mounting columns, so that the overall performance of the product is better, the whole assembly is convenient, the driving pins of the different micro-switches are more adaptive to the driving plate, and the auxiliary switch group is synchronously switched between the driving plates. Due to the arrangement of the partition plates, different micro switches cannot interfere with each other, wiring is facilitated, and the safety performance of the product is higher.

The utility model discloses still including piece 8 that resets, rocking arm 5 on be equipped with installation axle 53, installation axle 53 insert on mounting bracket 4 and with mounting bracket 4 rotatable coupling, piece 8 that resets offset with rocking arm 5 and have the motion trend that drive rocking arm 5 tends to the first position. The utility model discloses still including piece 8 that resets, 5 covers of rocking arm locate the installation off-axial, the installation axle insert on the mounting bracket 4 and be connected with mounting bracket 4, piece 8 that resets offset with rocking arm 5 and have the motion trend that drive rocking arm 5 tends to the first position. The utility model discloses an installation axle of two kinds of differences, the installation axle can link mutually with the rocking arm promptly for the rocking arm rotates with installation axle synchronization, also can be with installing the axle fixed, the rocking arm rotates. The installation axle can adopt the integral type structure to realize also can adopt modes such as spline to realize when linking mutually with the rocking arm. The utility model discloses a rocking arm of integral type, simple structure, processing is convenient, the installation of being convenient for, does the utility model discloses an optimal mode.

The driving foot 71 comprises a first elastic foot 711 and a second elastic foot 712, the first elastic foot 711 and the second elastic foot 712 are matched with each other and arranged in an inverted Z shape, the first elastic foot 711 is connected with the micro switch 7, the second elastic foot 712 is used for abutting against the rocker arm 5, and the micro switch 7 is provided with a switching lug 713 which is pressed by the first elastic foot 711 and used for switching a normally open and normally closed contact. Specifically speaking, first elasticity foot and second elasticity foot constitute micro-gap switch's elasticity portion, more specifically speaking, micro-gap switch on switch the lug make first elasticity foot keep away from micro-gap switch setting a little to be convenient for press first elasticity foot, damage micro-gap switch when avoiding the excessive motion, simultaneously can reliably switch over micro-gap switch. The structure is convenient for the drive board to reliably drive the plurality of micro-switches to synchronously act, and the product has good synchronization performance.

Mounting bracket 4 have two and locate the outside of auxiliary switch group 6, mounting bracket 4 on be equipped with the mounting plane 43 that is convenient for the installation fixed, micro-gap switch 7's long limit perpendicular to mounting plane 43 sets up. The structure facilitates the installation and fixation of the mounting rack, and simultaneously reduces the volume of the auxiliary switch device.

The driving plate 51 is provided with a driving part 511 which is convenient for pressing the driving foot 71, and the driving part 511 is arranged at the end part of the driving plate 51 in a circular or arc shape. The structure is convenient for the drive board to reliably drive the plurality of micro-switches to synchronously move, the drive foot is convenient and reliable to press, and the product has good synchronization performance.

When the circuit breaker is in a closing state, the protrusion 221 of the connecting rod 22 is abutted against the driving arm 52 of the rocker arm 5 so as to drive the normally open and normally closed contact of the conversion connecting terminal 73 of the microswitch 7 to perform conversion; when the breaker is in the opening state, the projection 221 of the connecting rod 22 is separated from the driving arm 52 of the rocker arm 5, and the normally open and normally closed contact of the microswitch 7 is restored to the original state. The driving arm of the rocker arm may contact with the protrusion 221 of the link of the operating mechanism, or may be separated from the protrusion 221 of the link of the operating mechanism. In the actual working process, the operating mechanism operates the circuit breaker to switch on or switch off, and the connecting rod can be driven to rotate through the rotation of the rotating shaft, so that the position of the rocker arm is changed, the driving arm acts to enable the normally-open normally-closed contact of the microswitch to be switched, and the circuit is switched.

Operating device 2 on be equipped with fixed plate 23, axis of rotation 21 stretch out outside operating device 2, circuit breaker body 1 on be equipped with and be used for the spacing stopper 11 of axis of rotation 21, auxiliary switch device 3 locate the fixed plate 23 department in axis of rotation 21 outside top, actuating arm 52 pass fixed plate 23 and slant setting. The space of the circuit breaker body is reasonably utilized, the structure of the operating mechanism is simplified, and product assembly and maintenance are facilitated.

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 is to 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. An auxiliary switch device comprises an installation frame (4) and is characterized in that a rocker arm (5) and an auxiliary switch group (6) are arranged on the installation frame (4), the auxiliary switch group (6) comprises a plurality of micro switches (7) which are arranged in parallel, each micro switch (7) comprises a driving pin (71), a public connecting terminal (72) and a conversion connecting terminal (73) provided with a normally-open normally-closed contact, the rocker arm (5) comprises a driving plate (51) and a driving arm (52), the driving plate (51) is in butt joint with the driving pin (71) of each micro switch (7), and the rocker arm (5) is provided with a first position during installation and a second position, wherein the driving plate (51) is driven to press the driving pin (71) through rotation when the driving arm (52) is stressed, so that the normally-open normally-closed contact is converted.

2. An auxiliary switching device as claimed in claim 1, wherein the mounting frame (4) is provided with a first mounting post, different micro switches (7) are fixed on the mounting frame (4) through the first mounting post (41), and a partition plate (42) is arranged between adjacent micro switches (7).

3. Auxiliary switching device according to claim 1, characterized in that it further comprises a reset member (8), said rocker arm (5) being provided with a mounting shaft (53), said mounting shaft (53) being inserted in said mounting bracket (4) and being rotatably connected to said mounting bracket (4), said reset member (8) being in abutment with said rocker arm (5) and having a tendency to drive said rocker arm (5) towards said first position.

4. Auxiliary switching device according to claim 1, characterized in that it further comprises a reset member (8), said rocker arm (5) being housed outside a mounting shaft, said mounting shaft being inserted in said mounting bracket (4) and being connected to said mounting bracket (4), said reset member (8) being in abutment with said rocker arm (5) and having a tendency to drive said rocker arm (5) towards said first position.

5. The auxiliary switch device as claimed in claim 1, wherein the driving leg (71) comprises a first elastic leg (711) and a second elastic leg (712), the first elastic leg (711) and the second elastic leg (712) are matched with each other and are arranged in an inverted "Z" shape, the first elastic leg (711) is connected with the microswitch (7), the second elastic leg (712) is used for abutting against the rocker arm (5), and the microswitch (7) is provided with a switching lug (713) which is pressed by the first elastic leg (711) and is used for switching a normally-open normally-closed contact.

6. The auxiliary switch device as claimed in claim 1, wherein the mounting frame (4) has two parts and is disposed outside the auxiliary switch group (6), the mounting frame (4) is provided with a mounting plane (43) for facilitating mounting and fixing, and the long side of the microswitch (7) is disposed perpendicular to the mounting plane (43).

7. The auxiliary switch device as claimed in claim 1, wherein the driving plate (51) is provided with a driving portion (511) for pressing the driving pin (71), and the driving portion (511) is formed in a circular shape or an arc shape and is provided at an end portion of the driving plate (51).

8. A universal circuit breaker is characterized in that: the auxiliary switch device comprises a circuit breaker body (1), an operating mechanism (2) and the auxiliary switch device as claimed in any one of claims 1 to 7, wherein the operating mechanism (2) is fixedly mounted on the circuit breaker body (1), the auxiliary switch device (3) is fixedly mounted on the operating mechanism (2), the operating mechanism (2) comprises a rotating shaft (21), the rotating shaft (21) is provided with a connecting rod (22) for driving a moving contact and a static contact of the circuit breaker body to be switched on and off, and the connecting rod (22) is provided with a protrusion (221) for driving a rocker arm (5) to rotate.

9. The universal circuit breaker as claimed in claim 8, characterized in that when the circuit breaker is in a closing state, the protrusion (221) of the connecting rod (22) abuts against the driving arm (52) of the rocker arm (5) to drive the normally open and normally closed contact of the switching terminal (73) of the micro switch (7) to switch; when the breaker is in a brake-off state, the bulge (221) of the connecting rod (22) is separated from the driving arm (52) of the rocker arm (5), and the normally-open normally-closed contact of the microswitch (7) is restored to the original state.

10. The universal circuit breaker according to claim 8, wherein the operating mechanism (2) is provided with a fixing plate (23), the rotating shaft (21) extends out of the operating mechanism (2), the breaker body (1) is provided with a limiting block (11) for limiting the rotating shaft (21), the auxiliary switching device (3) is arranged at the position of the fixing plate (23) above the outer side of the rotating shaft (21), and the driving arm (52) penetrates through the fixing plate (23) and is obliquely arranged.