CN221101987U

CN221101987U - Accessory device and operating mechanism on circuit breaker

Info

Publication number: CN221101987U
Application number: CN202322778731.6U
Authority: CN
Inventors: 虞胜财; 陈俊; 陆胜利; 叶鑫磊; 连旭峰
Original assignee: Zhejiang Jubang Electric Co ltd
Current assignee: Zhejiang Jubang Electric Co ltd
Priority date: 2023-10-17
Filing date: 2023-10-17
Publication date: 2024-06-07
Anticipated expiration: 2033-10-17

Abstract

The utility model discloses an accessory device and an operating mechanism on a circuit breaker, which mainly relate to the technical field of circuit breaker accessories and are mainly arranged in an air switch, and an electric distribution system is effectively detected by arranging accessory contacts, wherein a rack is plate-shaped, a first push rod is hinged at the front end, a second push rod is hinged at the tail end, an elastic part is arranged between the first push rod and the rack, the elastic force generated by the elastic part can enable the first push rod to reset under the condition of not receiving the thrust action, the operating mechanism comprises a rotating shaft and a jump buckle, the head end of the rotating shaft is coaxially provided with a trigger piece, the tail end is provided with a trip deflector rod, the trip deflector rod is connected with a traction rod, thereby driving the rotating shaft to rotate and pushing a second push rod through the trigger piece, in addition, the jump buckle is arranged on the rotating shaft, the head end of the trip deflector rod can be abutted with the first push rod, and thus the first push rod and the second push rod are in linkage.

Description

Accessory device and operating mechanism on circuit breaker

Technical Field

The utility model relates to the technical field of breaker accessories, in particular to an accessory device and an operating mechanism on a breaker.

Background

The circuit breaker is a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time, and as a switching element, the circuit breaker can be used to distribute electric energy, and its function corresponds to a combination of a fuse type switch, an under-heating relay, and the like.

In the process of electricity generation, transportation and use, power distribution is an extremely important link, however, in many cases, the current or the voltage of a main contact of a circuit breaker is very high, the main contact cannot be directly used for monitoring, an auxiliary contact is needed to replace the main contact, the auxiliary contact and the main contact act simultaneously, the opening and closing states of the main contact can be indicated, and the opening and closing signals of a switch are synchronously output. Therefore, the remote signal transmission circuit can be connected with the indication lamp and the locking circuit, and meanwhile, the remote signal transmission circuit can be connected with the indication lamp and the locking circuit, so that fault type judgment under certain conditions is facilitated.

Disclosure of utility model

Therefore, the utility model provides the accessory device and the operating mechanism on the circuit breaker, so as to solve the problem that the power distribution circuit is difficult to detect due to the fact that the voltage and the current of the main contact of the circuit breaker are large in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions:

The utility model discloses an accessory device on a breaker, which is arranged in an air switch and comprises:

The device comprises a frame, wherein a first push rod is hinged at the front end of the frame, a second push rod is hinged at the tail end of the frame, and an elastic part is arranged between the first push rod and the frame;

The release is arranged on one side of the frame, a first micro switch is arranged on the other side of the frame, and the first push rod is positioned above the first micro switch and is suitable for poking the first micro switch;

The combined micro switch is arranged at the bottom of the frame, an alarm contact is arranged above the combined micro switch, and the alarm contact is hinged on the frame and is in transmission connection with the second push rod;

When the voltage value of the control side of the circuit breaker changes to the action voltage, the release is started, the second push rod drives the alarm contact to move upwards, the combined micro switch sends out a brake separating auxiliary signal, and meanwhile, the first micro switch is separated from the first push rod and sends out an alarm signal.

Furthermore, the combined micro switch consists of two sensitive switches which are arranged in parallel, the two sensitive switches are symmetrically arranged on two sides of the frame, and the alarm contact and the second push rod are mechanically interlocked and act on one of the sensitive switches.

Further, the release comprises an excitation coil, a telescopic pull rod and a traction rod, wherein the telescopic pull rod is movably inserted into the excitation coil, and the traction rod is arranged at the end part of the telescopic pull rod.

Further, the second push rod comprises a press rod, a first hinge hole and a first contact point, the end part of the press rod is provided with the first contact point, the first contact point is suitable for being contacted with a sensitive switch, and the first hinge hole is arranged between the first contact point and the press rod.

Further, the alarm contact comprises a second hinge hole, a second contact point, an abutting groove and a transmission plate, wherein the second hinge hole is formed in one end of the transmission plate, the second contact point is arranged at the other end of the transmission plate, and the abutting groove is formed between the second contact point and the second hinge hole;

The abutting groove is suitable for abutting against the first contact point, and the second contact point is suitable for contacting with another sensitive switch.

According to a second aspect of the present utility model,

The utility model discloses an operating mechanism, comprising an accessory device on a circuit breaker, comprising:

the head end of the rotating shaft is provided with a trigger piece coaxially, the tail end of the rotating shaft is provided with a tripping deflector rod, and the tripping deflector rod is connected with the traction rod;

the trip is buckled, and the tail end is installed in the pivot, and the head end is provided with the trigger push rod, trigger push rod be suitable for with first push rod butt.

The utility model has the following advantages:

The utility model mainly forms three contacts or triggers in the short-circuiting device through the accessory device, wherein one of the three contacts or triggers is used for alarming, and the other two of the three contacts or triggers are used for sending switching-on and switching-off signals through an interlocking mode between the alarming contact and the second push rod, so that the problem that in the prior art, the main contact voltage and current of the circuit breaker are large, and the power distribution circuit is difficult to detect is solved. On the basis, in order to enable the first push rod and the second push rod to complete linkage, the technical scheme is characterized in that an operating mechanism is further arranged in the circuit breaker, so that an alarm can be sent out when the circuit breaker is disconnected (when the circuit breaker fails to trip), and maintenance personnel can be informed of overhauling in time.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.

FIG. 1 is a perspective view of an operating mechanism provided by the present utility model;

FIG. 2 is a front view of an operating mechanism provided by the present utility model;

FIG. 3 is a perspective view of a combination microswitch provided by the utility model;

fig. 4 is a perspective view of an accessory device on a circuit breaker provided by the present utility model;

FIG. 5 is a perspective view of a second pushrod according to the present utility model;

in the figure: a frame 1; 2 a first push rod; 3, a second push rod; 31 a compression bar; 32 a first hinge hole; 33 a first touch point; 4, a first micro switch; 5, tripping device; 51 field coil; 52 telescopic pull rod; 53 traction lever; 6, combining a micro switch; 7, an alarm contact; 71 a second hinge hole; 72 a second contact point; 73 abutment grooves; 74 drive plates; 8, an elastic component; 9, rotating shaft; 10 triggering piece; 11, tripping a deflector rod; 12 jumping buckles; 13 trigger the push rod.

Detailed Description

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5 together, the accessory device on the circuit breaker disclosed by the utility model is mainly installed in an air switch, and is used for effectively detecting a power distribution system by arranging accessory contacts, which is specifically described as follows. The frame 1 is platy, and the front end articulates and is provided with first push rod 2, and the tail end articulates and is provided with second push rod 3, and first push rod 2 and second push rod 3 all can independent motion, and be provided with elastomeric element 8 between first push rod 2 and the frame 1, can make first push rod 2 accomplish the reset under the condition that does not receive thrust effect by the elasticity that elastomeric element 8 produced, in this embodiment, elastomeric element 8 is spring or torsional spring.

The tripping device 5 is arranged on one side of the frame 1, when a short circuit occurs in an accessory system, the instantaneous current is increased sharply, so that the magnetic flux of the exciting coil 51 changes, the tripping device 5 is started and drives the operating mechanism to swing, the circuit breaking is realized, the first micro switch 4 is arranged on the other side of the frame 1, the first micro switch 4 is connected with the alarm system as a normally closed or normally open contact, and when the tripping device 5 is started, the alarm can be electrified. The first push rod 2 is located above the first micro switch 4, one end of the first push rod 2 is suitable for stirring the first micro switch 4, the other end of the first push rod 2 is suitable for being abutted with the trigger push rod 13, and the trigger push rod 13 is used for stirring the first push rod 2, so that the first micro switch 4 is connected with an alarm, and the purposes of breaking, tripping and alarming are achieved.

On the other hand, a combined micro switch 6 is installed at the bottom of the frame 1, an alarm contact 7 is arranged above the combined micro switch 6, the alarm contact 7 is hinged on the frame 1 and is in transmission connection with the second push rod 3, in this embodiment, the combined micro switch 6 is composed of two sensitive switches which are arranged in parallel, the two sensitive switches are symmetrically arranged at two sides of the frame 1, mechanical interlocking is realized between the alarm contact 7 and the second push rod 3, and the two sensitive switches are respectively arranged, that is, one of the two sensitive switches is in an open state, the other one of the two sensitive switches is in a closed state, and therefore the two sensitive switches can be used as two contactors to send closing or opening signals. When the current in the circuit breaker suddenly increases, the release 5 is started, the second push rod 3 drives the alarm contact 7 to move upwards, the combined micro switch 6 sends out a brake separating signal, and meanwhile the first micro switch 4 is separated from the first push rod 2 and sends out an alarm signal.

In some embodiments, as shown in fig. 2, as shown in fig. 1, fig. 2 and fig. 3, the release 5 includes an exciting coil 51, a telescopic pull rod 52 and a traction rod 53, the exciting coil 51 is movably inserted into the telescopic pull rod 52, and the traction rod 53 is arranged at the end of the telescopic pull rod 52, and in this embodiment, the traction rod 53 is connected with the release lever 11, so that the first push rod 2 and the second push rod 3 are linked through an operating mechanism.

In some embodiments, as shown in fig. 5, the second push rod 3 includes a compression rod 31, a first hinge hole 32 and a first contact point 33, the end of the compression rod 31 is provided with the first contact point 33, and the first hinge hole 32 is provided between the first contact point 33 and the compression rod 31. In this embodiment, the first contact point 33 can be brought into contact with one of the sensitive switches by pushing the pressing lever 31, and the other sensitive switch remains stationary since the first contact point 33 does not affect the alarm contact 7 when it moves downward.

In this embodiment, as shown in fig. 5, the alarm contact 7 includes a second hinge hole 71, a second contact point 72, an abutment groove 73, and a transmission plate 74, one end of the transmission plate 74 is provided with the second hinge hole 71, the other end is provided with the second contact point 72, and an abutment groove 73 is provided between the second contact point 72 and the second hinge hole 71. While the abutment slot 73 is adapted to abut against the first contact point 33 and the second contact point 72 is adapted to contact another sensitive switch. In actual operation, after the pressing rod 31 presses one of the sensitive switches, a brake-off auxiliary signal is output, and when the switch is closed, the pressing rod 31 leaves the sensitive switch, so that the switch is turned off, and the other sensitive switch is turned on, and a brake-on auxiliary signal is output. Thus, the two sensitive switches can be interlocked, and the stability of signal transmission is improved.

Based on the same inventive concept, as shown in fig. 2, the utility model also discloses an operating mechanism, which comprises a rotating shaft 9 and a jump buckle 12, wherein the head end of the rotating shaft 9 is provided with a trigger piece 10 coaxially, the tail end is provided with a trip deflector rod 11, the trip deflector rod 11 is connected with a traction rod 53, and the connection mode can be soft connection or connection by adopting a hinge, so that the rotating shaft 9 can be driven to rotate, and the trigger piece 10 is driven to push the second push rod 3. In addition, a jump button 12 is mounted on the rotating shaft 9, a trigger push rod 13 is arranged at the head end of the jump button, and the trigger push rod 13 is suitable for being abutted with the first push rod 2, so that the first push rod 2 and the second push rod 3 are linked.

While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.

Claims

1. Accessory device on circuit breaker installs in air switch, its characterized in that includes:

The device comprises a frame (1), wherein a first push rod (2) is hinged at the front end of the frame, a second push rod (3) is hinged at the tail end of the frame, and an elastic part (8) is arranged between the first push rod (2) and the frame (1);

The release (5) is arranged on one side of the frame (1), a first micro switch (4) is arranged on the other side of the frame (1), and the first push rod (2) is used for poking the first micro switch (4);

the combined micro switch (6) is arranged at the bottom of the frame (1), and an alarm contact (7) is arranged above the combined micro switch.

2. Accessory device on a circuit breaker according to claim 1, characterized in that said combined microswitch (6) consists of two sensitive switches arranged side by side, symmetrically arranged on either side of said frame (1), said alarm contact (7) being mechanically interlocked with the second push rod (3) and acting on one of them.

3. The accessory device on the circuit breaker according to claim 1, wherein the release (5) comprises an exciting coil (51), a telescopic pull rod (52) and a traction rod (53), the telescopic pull rod (52) is movably inserted into the exciting coil (51), and the traction rod (53) is arranged at the end part of the telescopic pull rod (52).

4. Accessory device on a circuit breaker according to claim 2, characterized in that the second push rod (3) comprises a push rod (31), a first hinge hole (32) and a first contact point (33), the end of the push rod (31) is provided with the first contact point (33), the first contact point (33) is suitable for contacting with a sensitive switch, and the first hinge hole (32) is arranged between the first contact point (33) and the push rod (31).

5. Accessory device on a circuit breaker according to claim 4, characterized in that the alarm contact (7) comprises a second hinge hole (71), a second contact point (72), an abutment groove (73) and a transmission plate (74), wherein the transmission plate (74) is provided with the second hinge hole (71) at one end and the second contact point (72) at the other end, and an abutment groove (73) is provided between the second contact point (72) and the second hinge hole (71);

The abutment groove (73) is adapted to abut against a first contact point (33) and the second contact point (72) is adapted to be contacted by another sensitive switch.

6. Accessory device on a circuit breaker according to claim 1, characterized in that the elastic member (8) is a spring or torsion spring.

7. An operating mechanism comprising an accessory device on a circuit breaker as claimed in claim 1, comprising:

The rotary shaft (9) is coaxially provided with a trigger piece (10) at the head end, a tripping deflector rod (11) is arranged at the tail end, and the tripping deflector rod (11) is connected with the traction rod (53);

The jump button (12), the tail end is installed on pivot (9), the head end is provided with trigger push rod (13), trigger push rod (13) be suitable for with first push rod (2) butt.