CN216928273U

CN216928273U - Mutual inductor temperature circuit breaker

Info

Publication number: CN216928273U
Application number: CN202220688275.9U
Authority: CN
Inventors: 赵天龙; 李晓焕; 张高伟; 黄伟锋; 张站芳
Original assignee: Xuchang Guoyuan Electric Co ltd
Current assignee: Xuchang Guoyuan Electric Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-07-08
Anticipated expiration: 2032-03-28

Abstract

The utility model discloses a mutual inductor temperature circuit breaking device, relates to the technical field of mutual inductors, and particularly relates to a mutual inductor temperature circuit breaking device which comprises an insulating box, wherein an access door is arranged on the front side of the insulating box, mounting plates are arranged at the top and the bottom of the insulating box, binding posts are arranged on two sides of the bottom of the inner surface of the insulating box, and a temperature sensing clamping block is inserted into one side of the insulating box. This mutual-inductor temperature circuit breaker, through connecing the electrical mechanism, the elevator, the temperature sensing clamp splice, insulating push rod, deformation pole, alarm and alarm switch's cooperation setting, can detect the temperature of secondary winding circuit at the in-process that uses, can be timely after the overheated phenomenon that heaies up appearing cut off the circuit, avoid appearing danger, and can distinguish normal rising temperature and two kinds of states of abnormal rising temperature after the circuit cuts off, can recover after normal rising temperature reduces, and abnormal rising temperature then needs the manual recovery of staff's maintenance back, more safe reasonable.

Description

Mutual inductor temperature circuit breaker

Technical Field

The utility model relates to the technical field of mutual inductors, in particular to a temperature circuit breaking device of a mutual inductor.

Background

The mutual inductor is also called instrument transformer, and is a general name of current mutual inductor and voltage mutual inductor. The high voltage can be changed into low voltage, and the large current can be changed into small current for measuring or protecting the system. Its function is mainly to convert high voltage or large current into standard low voltage (100V) or standard small current (5A or 1A, both referring to rated value) in proportion, so as to realize standardization and miniaturization of measuring instrument, protection equipment and automatic control equipment. Meanwhile, the mutual inductor can be used for isolating a high-voltage system so as to ensure the safety of people and equipment.

However, the transformer in the current market is complex in structure and single in function, a short-circuit device and a temperature sensing device are not arranged, the load impedance of a secondary winding of the transformer is very small in a working state, the secondary winding is close to the short-circuit state and can generate a large amount of heat, when the inside of a combined transformer box body works for a long time to generate high temperature to cause circuit damage, the secondary winding cannot sense the circuit through the temperature sensing device in time, an alarm device is not arranged and cannot give an alarm in time, the probability of explosion danger is increased, and the operation is unsafe.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects in the prior art, the utility model provides a mutual inductor temperature breaking device which solves the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: a mutual inductor temperature circuit breaking device comprises an insulation box, wherein an access door is arranged on the front surface of the insulation box, mounting plates are arranged at the top and the bottom of the insulation box, binding posts are arranged on two sides of the bottom of the inner surface of the insulation box, a temperature sensing clamping block is inserted into one side of the insulation box and comprises a fixed clamping block and a movable clamping block, a wire passing hole is formed in one side of the fixed clamping block, which is in contact with the movable clamping block, a lifting chute is fixedly connected onto the side wall of the inner surface of the insulation box, two sliding lifting blocks are arranged in the lifting chute, an electric connection mechanism is respectively connected to the side surfaces of the lifting chute in a transmission manner, an insulation push rod and a deformation rod are fixedly connected to one side of the fixed clamping block, which is located inside the insulation box, the insulation push rod and the deformation rod are far away from the fixed clamping block and are connected through a rotating rod, an alarm is arranged on one side of the side wall of the inner surface of the insulation box, which is located in the lifting chute, an alarm switch is arranged on one side of the inner surface of the insulating box corresponding to the fixed clamping block, and a magnetic suction block is fixedly connected to the top of the insulating box.

Optionally, one side of the movable clamping block, which faces the fixed clamping block, is provided with an elastic insertion rod, and one end of the elastic insertion rod, which is inserted into the side wall of the fixed clamping block, is provided with a clamping joint.

Optionally, a side push rod is inserted into a side surface of the fixed clamping block, and the position of the side push rod corresponds to the position of the clamping head.

Optionally, connect the mechanism including the outage board and connect the electric plate, the outage board with connect the electric plate and distribute along the vertical direction, and the outage board with connect the electric plate and be connected with two elevator transmission respectively, the last fixed surface of outage board is connected with adsorption magnet, the side fixedly connected with press head of outage board, the lower surface symmetry that connects the electric plate is provided with two circular telegram heads, the outage board with connect and connect through promoting the connecting rod between the electric plate and connect.

Optionally, the position of press head is corresponding with alarm switch, alarm switch passes through wire and alarm electric connection, two through direction electric connection between the circular telegram head, and the position is corresponding with the terminal.

Optionally, the insulating push rod and the deformation rod are arc-shaped rods, the bending direction of the insulating push rod is upward, the bending direction of the deformation rod faces, the bending degree of the deformation rod changes along with the temperature, and the insulating push rod and the deformation rod are arranged between the power-off plate and the power-on plate.

(III) advantageous effects

The utility model provides a mutual inductor temperature circuit breaking device which has the following beneficial effects:

1. this mutual-inductor temperature circuit breaker, through connecing the electrical mechanism, the elevator, the temperature sensing clamp splice, insulating push rod, deformation pole, alarm and alarm switch's cooperation setting, can detect the temperature of secondary winding circuit at the in-process that uses, can be timely after the overheated phenomenon that heaies up appearing cut off the circuit, avoid appearing danger, and can distinguish normal rising temperature and two kinds of states of abnormal rising temperature after the circuit cuts off, can recover after normal rising temperature reduces, and abnormal rising temperature then needs the manual recovery of staff's maintenance back, more safe reasonable.

2. This mutual-inductor temperature circuit breaker sets up through the cooperation of fixed clamp splice, activity clamp splice and cross the wire hole, and the in-process that uses can be convenient carries out the centre gripping to secondary winding's circuit and fixes to stable detect its temperature, improved the efficiency of installation greatly.

Drawings

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

FIG. 2 is a top cross-sectional structural view of the temperature sensing clamping block of the present invention;

FIG. 3 is a front sectional structural view of the insulation box of the present invention;

FIG. 4 is a side sectional structural view of the insulation box of the present invention.

In the figure: 1. an insulating case; 2. an access door; 3. mounting a plate; 4. a binding post; 5. a temperature sensing clamp block; 501. fixing the clamping block; 5011. a side push rod; 502. a movable clamping block; 5021. an elastic insertion rod; 5022. a clamping head; 6. a wire passing hole; 7. a lifting chute; 8. a lifting block; 9. a power connection mechanism; 901. a power-off board; 902. a power connection plate; 903. adsorbing a magnet; 904. a pressing head; 905. a power-on head; 906. a lifting link; 10. an insulating push rod; 11. a deformation rod; 12. a rotating rod; 13. an alarm; 14. an alarm switch; 15. and (6) magnetically attracting the block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: a mutual inductor temperature circuit breaking device comprises an insulation box 1, an access door 2 is arranged on the front face of the insulation box 1, mounting plates 3 are arranged at the top and the bottom of the insulation box 1, binding posts 4 are arranged on two sides of the bottom of the inner surface of the insulation box 1, a temperature sensing clamping block 5 is inserted into one side of the insulation box 1, the temperature sensing clamping block 5 comprises a fixed clamping block 501 and a movable clamping block 502, an elastic insert rod 5021 is arranged on one side of the movable clamping block 502 facing the fixed clamping block 501, a clamping joint 5022 is arranged at one end of the elastic insert rod 5021 inserted into the side wall of the fixed clamping block 501, a side push rod 5011 is inserted into the side face of the fixed clamping block 501, the position of the side push rod 5011 corresponds to the position of the clamping joint 5022, a wire passing hole 6 is arranged on one side of the fixed clamping block 501 and the movable clamping block 502, a lifting chute 7 is fixedly connected onto the side wall of the inner surface of the insulation box 1, two sliding lifting blocks 8 are arranged in the lifting chute 7, the side surfaces of the lifting chutes 7 are respectively connected with an electricity connecting mechanism 9 in a transmission manner, the electricity connecting mechanism 9 comprises an electricity breaking plate 901 and an electricity connecting plate 902, the electricity breaking plate 901 and the electricity connecting plate 902 are distributed along the vertical direction, the electricity breaking plate 901 and the electricity connecting plate 902 are respectively connected with two lifting blocks 8 in a transmission manner, the upper surface of the electricity breaking plate 901 is fixedly connected with an adsorption magnet 903, the side surface of the electricity breaking plate 901 is fixedly connected with a pressing head 904, the lower surface of the electricity connecting plate 902 is symmetrically provided with two electricity connecting heads 905, the electricity breaking plate 901 and the electricity connecting plate 902 are connected through a lifting connecting rod 906, one side of the fixed clamping block 501, which is positioned in the insulating box 1, is fixedly connected with an insulating push rod 10 and a deformation rod 11, the insulating push rod 10 and the deformation rod 11 are both arc-shaped rods, the bending direction of the insulating push rod 10 is upward, the bending direction of the deformation rod 11 is toward, the bending degree of the deformation rod 11 changes with the temperature, and the insulating push rod 10 and the deformation rod 11 are arranged between the electricity breaking plate 901 and the electricity connecting plate 902, insulating push rod 10 and deformation pole 11 are kept away from fixed clamp splice 501 and are connected through bull stick 12, the one side that lies in lift spout 7 on the lateral wall of insulating box 1 internal surface is equipped with alarm 13, insulating box 1 internal surface is equipped with alarm switch 14 with the corresponding one side of fixed clamp splice 501, press head 904's position is corresponding with alarm switch 14, alarm switch 14 passes through wire and alarm 13 electric connection, through direction electric connection between two circular telegram heads 905, and the position is corresponding with terminal 4, insulating box 1's top fixedly connected with magnetism is inhaled piece 15.

When the device is used, a lead is connected with the wiring terminal 4 to connect the device into a circuit of a secondary winding of a mutual inductor, the side push rod 5011 is pushed inwards to enable the elastic plug rod 5021 to bend inwards and deform, so that the side push rod 5011 can be pulled out to separate the fixed clamping block 501 from the movable clamping block 502, the lead is placed into the wire through hole 6, then the fixed clamping block 501 and the movable clamping block 502 are closed, the side wall of the wire through hole 6 is tightly attached to the lead to monitor the temperature of the lead, after the temperature rises, the bending degree of the deformation rod 11 is increased, the deformation rod 11 drives the insulating push rod 10 to bend synchronously through the rotating rod 12 in the bending process, under the normal temperature rising state, the bending degree is increased slowly, after the set temperature is reached, the arched part of the insulating push rod 10 props up against the power-off plate 901 to rise, after the power-off plate 901 rises, the lifting connecting rod 906 drives the power-on plate 902 to rise, so that the power-on head 905 is separated from the wiring terminal 4, therefore, the circuit is cut off, the arched part of the insulating push rod 10 descends after the temperature is reduced, the electric connection plate 902 is reset and electrified again, when the temperature is abnormally and sharply increased, the bending degree of the deformation rod 11 is sharply increased, so that the deformation part of the insulating push rod 10 is sharply increased, the jacked height of the electric connection plate 901 is increased at the moment, the magnetic suction block 15 and the suction magnet 903 are close to the suction distance and are sucked together, the electric connection plate 901 keeps the lifting state, meanwhile, the pressing head 904 triggers the alarm switch 14 in the lifting process of the electric connection plate 901, and the alarm 13 is electrified to give an alarm.

In conclusion, the power connection mechanism 9, the lifting block 8, the temperature sensing clamping block 5, the insulating push rod 10, the deformation rod 11, the alarm 13 and the alarm switch 14 are arranged in a matched mode, the temperature of a secondary winding circuit can be detected in the using process, the circuit can be timely cut off after the temperature rise and overheating phenomena occur, dangers are avoided, the circuit can be distinguished from normal temperature rise and abnormal temperature rise states after being cut off, the normal temperature rise state can be recovered after the normal temperature rise temperature is reduced, and the abnormal temperature rise state can be recovered manually after being overhauled by workers, so that the power connection mechanism is safer and more reasonable; through the cooperation setting of fixed clamp splice 501, activity clamp splice 502 and line hole 6, the in-process that uses can be convenient carry out the centre gripping to secondary winding's circuit fixed to stable detect its temperature, improved the efficiency of installation greatly.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the utility model concepts of the present invention in the scope of the present invention.

Claims

1. The utility model provides a mutual-inductor temperature circuit breaker, includes insulating case (1), its characterized in that: the front surface of the insulating box (1) is provided with an access door (2), the top and the bottom of the insulating box (1) are respectively provided with a mounting plate (3), both sides of the bottom of the inner surface of the insulating box (1) are respectively provided with a binding post (4), one side of the insulating box (1) is spliced with a temperature sensing clamping block (5), the temperature sensing clamping block (5) comprises a fixed clamping block (501) and a movable clamping block (502), one side of the fixed clamping block (501) in contact with the movable clamping block (502) is provided with a wire passing hole (6), the side wall of the inner surface of the insulating box (1) is fixedly connected with a lifting chute (7), two sliding lifting blocks (8) are arranged in the lifting chute (7), the side surface of the lifting chute (7) is respectively in transmission connection with a power connection mechanism (9), one side of the fixed clamping block (501) positioned in the insulating box (1) is fixedly connected with an insulating push rod (10) and a deformation rod (11), insulating push rod (10) and deformation pole (11) are kept away from fixed clamp splice (501) and are connected through bull stick (12), one side that lies in lift spout (7) on the lateral wall of insulating box (1) internal surface is equipped with alarm (13), insulating box (1) internal surface and the corresponding one side of fixed clamp splice (501) are equipped with alarm switch (14), block (15) are inhaled to the top fixedly connected with magnetism of insulating box (1).

2. The instrument transformer temperature circuit breaker according to claim 1, characterized in that: one side of the movable clamping block (502) facing the fixed clamping block (501) is provided with an elastic insert rod (5021), and one end of the elastic insert rod (5021) inserted into the side wall of the fixed clamping block (501) is provided with a clamping joint (5022).

3. The instrument transformer temperature circuit breaker according to claim 2, characterized in that: the side face of the fixed clamping block (501) is inserted with a side push rod (5011), and the position of the side push rod (5011) corresponds to the position of the clamping connector (5022).

4. The instrument transformer temperature circuit breaker according to claim 1, characterized in that: the power connection mechanism (9) comprises a power failure plate (901) and a power connection plate (902), the power failure plate (901) and the power connection plate (902) are distributed along the vertical direction, the power failure plate (901) and the power connection plate (902) are in transmission connection with the two lifting blocks (8) respectively, an adsorption magnet (903) is fixedly connected to the upper surface of the power failure plate (901), a pressing head (904) is fixedly connected to the side surface of the power failure plate (901), two power connection heads (905) are symmetrically arranged on the lower surface of the power connection plate (902), and the power failure plate (901) and the power connection plate (902) are connected through a lifting connecting rod (906).

5. The instrument transformer temperature circuit breaker according to claim 4, characterized in that: the position of press head (904) is corresponding with alarm switch (14), alarm switch (14) pass through wire and alarm (13) electric connection, two through direction electric connection between circular telegram head (905), and the position is corresponding with terminal (4).

6. The instrument transformer temperature circuit breaker of claim 4, wherein: insulating push rod (10) and deformation pole (11) are the arc pole, and insulating push rod (10) bending direction is up, the bending direction orientation of deformation pole (11), the bending degree along with temperature variation of deformation pole (11), just insulating push rod (10) and deformation pole (11) set up at outage board (901) and connect between electric plate (902).