CN217280404U

CN217280404U - Current transformer with wire breakage alarm function

Info

Publication number: CN217280404U
Application number: CN202220400461.8U
Authority: CN
Inventors: 魏廷兵; 赵小江; 许玉春; 陈华; 夏裕俊
Original assignee: Jiangsu Suneng Transformer Co ltd
Current assignee: Jiangsu Suneng Transformer Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-08-23
Anticipated expiration: 2032-02-28

Abstract

The utility model discloses a current transformer with broken string alarming function, including current transformer body, connecting axle, torque spring, transmission shaft, contact switch and bee calling organ, the lower extreme of current transformer body runs through and installs the connecting axle, and the outer end of connecting axle has the expansion disc to the nested torque spring of installing in the inner of expansion disc, the transmission shaft is installed to the outer end nestification of expansion disc, and the outer end of expansion disc has the swing joint spare through the transmission shaft butt joint, the upper end of expansion disc has the magnet spare to the butt joint. This current transformer with disconnection alarming function, in the twinkling of an eye of current transformer body outage, will lose electric power with the electro-magnet of butt joint and provide to make the magnet piece that attracts mutually and the movable disk rotation that resets, promote 2 swing joint spare and move outward, make 2 contact switch contact of group, thereby let bee calling organ automatic operation, in time remind the user to carry out repair work.

Description

Current transformer with wire breakage alarm function

Technical Field

The utility model relates to a current transformer technical field specifically is a current transformer with broken string alarming function.

Background

The current transformer can convert a primary current with a larger value into a secondary current with a smaller value through a certain transformation ratio for protection, measurement and other purposes, so that the production steps are more rigorous, but the existing current transformer has certain defects, such as:

when the existing current transformer has a short circuit or an electric leakage phenomenon, the phenomenon that an electric wire in the existing current transformer is blown off and the like easily occurs, and the existing current transformer cannot alarm in time, so that a user easily has great loss and potential safety hazard when observing the phenomenon;

when the current transformer has the phenomena of short circuit and the like, the whole object cannot be easily disassembled due to the current, the working effect of automatic disassembly cannot be realized, and certain operation difficulty exists.

Aiming at the problems, innovative design is urgently needed on the basis of the structure of the original current transformer.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a current transformer with a wire breakage alarm function, which solves the problems that the electric wires in the current transformer are easy to be blown out when short circuit or electric leakage occurs, and the current transformer cannot alarm in time, so that a user is easy to have great loss and potential safety hazard when observing the current transformer; when the current transformer has the phenomena of short circuit and the like, the whole object cannot be easily disassembled due to the current, the working effect of automatic disassembly cannot be realized, and the problem of certain operation difficulty exists.

In order to achieve the above object, the utility model provides a following technical scheme: a current transformer with a wire breakage alarm function comprises a current transformer body, a connecting shaft, a torsion spring, a transmission shaft, a contact switch and a buzzer, wherein the lower end of the current transformer body is provided with the connecting shaft in a penetrating manner, the outer end of the connecting shaft is butted with a movable disc, the inner end of the movable disc is nested with the torsion spring, the outer end of the movable disc is nested with the transmission shaft, the outer end of the movable disc is butted with a movable connecting piece through the transmission shaft, and the upper end of the movable disc is butted with a magnet piece;

the guide way has been seted up to the lower extreme inboard of current transformer body, and the inboard fixedly connected with electro-magnet of guide way to electro-magnet and magnet position correspond each other, the outer end of guide way and activity dish docks each other simultaneously, contact switch is installed to the inner of swing joint spare and current transformer body, and the outer end of current transformer body installs bee calling organ, the locking piece is installed to the outer end nestification of current transformer body.

Preferably, the movable disc and the bottom of the current transformer body form an elastic movable structure through a torsion spring, the movable disc forms a rotating structure along the inner side of the lower end of the current transformer body through a guide groove, and the rotating range of the movable disc is 0-90 degrees.

Preferably, the movable connecting pieces are symmetrically distributed about the central point of the movable disc, the movable connecting pieces form a rotating structure through the movable disc, the tail ends of the movable connecting pieces push the contact switches to form a sliding structure along the inner side of the lower end of the current transformer body, and in the rotating process of the movable disc, 2 movable connecting pieces which can stably drive the outer ends form angle movement work.

Preferably, the magnet piece and the electromagnet are of unlike magnetic poles, and the magnet piece passes through the outer end of the movable disc and forms a rotating structure along the inner side of the lower end of the current transformer body.

Preferably, the locking piece is provided with haulage rope and reset spring, and reset spring is installed to the inner of locking piece to reset spring docks each other with the inner of current transformer body, and the inner butt joint of locking piece has the haulage rope simultaneously, and the haulage rope docks each other with movable connecting piece's end.

Preferably, the locking piece passes through reset spring and forms extending structure along the inner of current transformer body, and the locking piece passes through haulage rope and movable connecting piece's end formation and pulls the structure, lets the in-process that movable connecting piece moved outward, and what can be stable drives the locking piece through the haulage rope and inwards carries out the position activity.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the current transformer with the wire breakage alarming function is provided with the movable connecting pieces which can move automatically, and at the moment of power failure of the current transformer body, the electromagnet butted with the current transformer body loses power supply, so that the attracted magnet pieces and the movable disc reset and rotate, 2 movable connecting pieces are pushed to move outwards, and 2 groups of contact switches are contacted, so that the buzzer automatically works, and a user is reminded of repairing work in time;

2. this current transformer with broken string alarming function is provided with the closure of symmetric distribution, along with the activity dish rotation of resetting, the swing joint spare of butt joint will move outward thereupon and drive the synchronous atress of haulage rope for 2 closures of haulage rope synchronous pulling that dock rather than the outside move inwards, thereby make the automatic operation of coming off of current transformer body of electric leakage state, avoid user's contact operation.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the movable plate of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a side sectional view of the locking element of the present invention;

fig. 5 is a schematic view of the connecting shaft of the present invention.

In the figure: 1. a current transformer body; 2. a connecting shaft; 3. a movable tray; 4. a torsion spring; 5. a drive shaft; 6. a movable connecting piece; 7. a magnet piece; 8. a guide groove; 9. an electromagnet; 10. a contact switch; 11. a hauling rope; 12. a locking member; 13. a return spring; 14. a buzzer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a current transformer with a wire breakage alarm function comprises a current transformer body 1, a connecting shaft 2, a movable disc 3, a torsion spring 4, a transmission shaft 5, a movable connecting piece 6, a magnet piece 7, a guide groove 8, an electromagnet 9, a contact switch 10, a traction rope 11, a locking piece 12, a return spring 13 and a buzzer 14.

The lower end of the current transformer body 1 is provided with a connecting shaft 2 in a penetrating way, the outer end of the connecting shaft 2 is in butt joint with a movable disc 3, the inner end of the movable disc 3 is nested with a torsion spring 4, the outer end of the movable disc 3 is nested with a transmission shaft 5, the outer end of the movable disc 3 is in butt joint with a movable connecting piece 6 through the transmission shaft 5, and the upper end of the movable disc 3 is in butt joint with a magnet piece 7;

guide way 8 has been seted up to the lower extreme inboard of current transformer body 1, and the inboard fixedly connected with electro-magnet 9 of guide way 8 to electro-magnet 9 corresponds each other with magnet piece 7 position, and guide way 8 docks each other with the outer end of expansion disc 3 simultaneously, and contact switch 10 is installed to the inner of movable connecting piece 6 and current transformer body 1, and buzzer 14 is installed to the outer end of current transformer body 1, and locking piece 12 is installed to the outer end nestification of current transformer body 1.

The movable disc 3 and the bottom of the current transformer body 1 form an elastic movable structure through the torsion spring 4, the movable disc 3 forms a rotating structure along the inner side of the lower end of the current transformer body 1 through the guide groove 8, and the rotating range of the movable disc 3 is 0-90 degrees. The movable connecting pieces 6 are symmetrically distributed about the center point of the movable disc 3, the movable connecting pieces 6 form a rotating structure through the movable disc 3, and the ends of the movable connecting pieces 6 push the contact switches 10 to form a sliding structure along the inner side of the lower end of the current transformer body 1. The magnet piece 7 and the electromagnet 9 are of different magnetic poles, and the magnet piece 7 forms a rotating structure along the inner side of the lower end of the current transformer body 1 through the outer end of the movable disc 3.

In the moment of the power failure of the current transformer body 1, the electromagnet 9 butted with the current transformer body loses power supply, so that the attracted magnet piece 7 loses contact force, the connected movable disc 3 resets and rotates through the resetting force of the

torsion spring

4, 2 movable connecting pieces 6 rotatably connected on the outer side of the movable disc are pushed to move outwards, 2 groups of contact switches 10 are contacted, and the buzzer 14 powered by a storage battery automatically works.

The locking piece 12 is provided with a haulage rope 11 and a return spring 13, and the inner of the locking piece 12 is installed with the return spring 13 to the inner butt joint of return spring 13 and current transformer body 1 has haulage rope 11 in the butt joint of the inner of locking piece 12 simultaneously, and haulage rope 11 and the end of swing joint 6 butt joint each other. The locking piece 12 forms a telescopic structure along the inner end of the current transformer body 1 through a return spring 13, and the locking piece 12 forms a traction structure with the tail end of the movable connecting piece 6 through a traction rope 11.

In the process that the movable disc 3 resets and rotates through the resetting force of the torsion spring 4, the movable connecting piece 6 in butt joint with the movable disc moves outwards along with the movable disc to drive the traction rope 11 to be stressed synchronously, so that the traction rope 11 in butt joint with the outer side of the movable disc pulls 2 locking pieces 12 to move inwards synchronously, and the current transformer body 1 in a leakage state automatically breaks away from a positioning state to fall off.

The working principle is as follows: when the current transformer with the wire breakage alarming function is used, according to the figures 1-5, the device is firstly placed at a position needing to work, the current transformer body 1 is installed at the corresponding working position through 2 groups of locking pieces 12 on the outer side, in the working process of the current transformer body, in the moment of power failure of the current transformer body 1, the electromagnet 9 butted with the current transformer body loses power supply, so that the attracted magnet piece 7 loses contact force, the connected movable disc 3 resets and rotates through the resetting force of the torsion spring 4, at the moment, 2 movable connecting pieces 6 which are rotationally connected on the outer side of the movable disc 3 are pushed to move outwards, and 2 groups of contact switches 10 are contacted, so that the buzzer 14 powered by a storage battery automatically works, a user is timely reminded of repairing work, and the overall practicability is improved.

Those not described in detail in this specification are within the skill of the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a current transformer with disconnection alarming function, includes current transformer body (1), connecting axle (2), torsion spring (4), transmission shaft (5), contact switch (10) and bee calling organ (14), its characterized in that: the lower end of the current transformer body (1) is provided with a connecting shaft (2) in a penetrating mode, the outer end of the connecting shaft (2) is in butt joint with a movable disc (3), a torsion spring (4) is installed at the inner end of the movable disc (3) in a nested mode, a transmission shaft (5) is installed at the outer end of the movable disc (3) in a nested mode, a movable connecting piece (6) is in butt joint with the outer end of the movable disc (3) through the transmission shaft (5), and a magnet piece (7) is in butt joint with the upper end of the movable disc (3);

guide way (8) have been seted up to the lower extreme inboard of current transformer body (1), and inboard fixedly connected with electro-magnet (9) of guide way (8) to electro-magnet (9) correspond each other with magnet spare (7) position, and guide way (8) dock each other with the outer end of expansion disc (3) simultaneously, contact switch (10) are installed to the inner of swing joint spare (6) and current transformer body (1), and buzzer (14) are installed to the outer end of current transformer body (1), closure (12) are installed to the outer end nestification of current transformer body (1).

2. The current transformer with the function of wire breakage alarm according to claim 1, characterized in that: the movable disc (3) forms an elastic movable structure with the bottom of the current transformer body (1) through the torsion spring (4), the movable disc (3) forms a rotating structure along the inner side of the lower end of the current transformer body (1) through the guide groove (8), and the rotating range of the movable disc (3) is 0-90 degrees.

3. The current transformer with the function of wire breakage alarm according to claim 1, characterized in that: the movable connecting pieces (6) are symmetrically distributed about the central point of the movable disc (3), the movable connecting pieces (6) form a rotating structure through the movable disc (3), and the tail ends of the movable connecting pieces (6) push the contact switches (10) to form a sliding structure along the inner side of the lower end of the current transformer body (1).

4. The current transformer with the function of wire breakage alarm according to claim 1, characterized in that: the magnet piece (7) and the electromagnet (9) are of different magnetic poles, and the magnet piece (7) forms a rotating structure along the inner side of the lower end of the current transformer body (1) through the outer end of the movable disc (3).

5. The current transformer with the function of wire breakage alarm according to claim 1, characterized in that: the locking piece (12) is provided with a traction rope (11) and a return spring (13), the return spring (13) is installed at the inner end of the locking piece (12), the return spring (13) is in butt joint with the inner end of the current transformer body (1), the traction rope (11) is in butt joint with the inner end of the locking piece (12) simultaneously, and the traction rope (11) is in butt joint with the tail end of the movable connecting piece (6) mutually.

6. The current transformer with the function of wire breakage alarm according to claim 5, characterized in that: the locking piece (12) forms a telescopic structure along the inner end of the current transformer body (1) through a return spring (13), and the locking piece (12) forms a traction structure with the tail end of the movable connecting piece (6) through a traction rope (11).