CN209947602U

CN209947602U - Current transformer for intelligent frame circuit breaker

Info

Publication number: CN209947602U
Application number: CN201920536610.1U
Authority: CN
Inventors: 潘坤; 王志亮; 邓正洋
Original assignee: SHEYANG WEILONG ELECTRIC CO Ltd
Current assignee: SHEYANG WEILONG ELECTRIC CO Ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2020-01-14
Anticipated expiration: 2029-04-19

Abstract

The utility model discloses an intelligence frame current transformer for circuit breaker, include the box and install at the inside mutual-inductor body of box, the upper end fixedly connected with driving motor of box, driving motor's output shaft runs through the upper end of box and extends to its inside, the terminal coaxial fixedly connected with reciprocating lead screw of driving motor's output shaft, install on the reciprocating lead screw and be used for providing the first heat dissipation mechanism of scattered hot-blast for the mutual-inductor body, the first belt pulley of the coaxial fixedly connected with of driving motor's output shaft, the interior top fixedly connected with rectangular plate of box, the rectangular channel has been seted up to the lower extreme of rectangular plate.

Description

Current transformer for intelligent frame circuit breaker

Technical Field

The utility model relates to a current transformer for intelligent frame circuit breaker.

Background

The current transformer is an instrument for converting a large primary side current into a small secondary side current according to the electromagnetic induction principle to measure, and consists of a closed iron core and a winding, wherein the primary side winding has few turns and is connected in a circuit of a current to be measured in series, and the secondary side winding has more turns and is connected in a measuring instrument and a protection loop in series. Current transformer is at the course of the work, because need carry out the conversion of big or small multiple of electric current, so the winding can produce a large amount of heats, and current transformer that current circuit breaker was used generally does not set up heat abstractor and comes to carry out the heat dissipation processing to these heats, consequently can produce a large amount of heats and pile up, can cause certain damage to transformer itself after the time has been long, influences the mutual-inductor and normally works to lead to whole circuit breaker work unusual.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the intelligent framework current transformer for circuit breaker that proposes, its first heat dissipation mechanism and the second heat dissipation mechanism through setting up the linkage, the heat that produces current transformer of at the at utmost carries out the heat dissipation processing under the prerequisite that sets up the power supply as far as possible, makes the temperature of mutual-inductor keep normal condition to guarantee the normal work of mutual-inductor and circuit breaker.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the current transformer for the intelligent frame circuit breaker comprises a box body and a transformer body arranged in the box body, wherein a driving motor is fixedly connected to the upper end of the box body, an output shaft of the driving motor penetrates through the upper end of the box body and extends into the box body, a reciprocating lead screw is coaxially and fixedly connected to the tail end of the output shaft of the driving motor, a first heat dissipation mechanism used for providing heat dissipation air for the transformer body is arranged on the reciprocating lead screw, a first belt pulley is coaxially and fixedly connected to the output shaft of the driving motor, a rectangular plate is fixedly connected to the inner top of the box body, a rectangular groove is formed in the lower end of the rectangular plate, a first sliding block is slidably connected in the rectangular groove, a second heat dissipation mechanism used for providing heat dissipation air for the box body is arranged on the first sliding block, a rotating shaft is rotatably connected to the inner top of the box body, and a pushing, and the rotating shaft is provided with a transmission mechanism for providing power for the pushing mechanism.

Preferably, the first heat dissipation mechanism comprises a sleeve and a heat dissipation fan, the sleeve is in threaded connection with the reciprocating lead screw, and the heat dissipation fan is fixedly connected to the side wall of the sleeve.

Preferably, a sliding groove is formed in the inner side wall of the box body in the vertical direction, a second sliding block is connected to the sliding groove in a sliding mode, and the second sliding block is fixedly connected with the sleeve.

Preferably, the second heat dissipation mechanism comprises a connecting rod and an air flow plate, the upper end of the connecting rod is fixedly connected to the lower end of the first sliding block, the upper end of the air flow plate is fixedly connected to the lower end of the connecting rod, and a plurality of uniformly distributed heat dissipation grooves are formed in the side wall of the box body.

Preferably, the pushing mechanism comprises a rotating wheel and a rotating rod, the rotating wheel is coaxially and fixedly connected to the tail end of the rotating shaft, one end of the rotating rod is rotatably connected to the rotating wheel, and the other end of the rotating rod is rotatably connected to the first sliding block.

Preferably, drive mechanism includes the second belt pulley, the coaxial fixed connection of second belt pulley is in the pivot, just the second belt pulley passes through the belt and is connected with first belt pulley transmission.

The utility model discloses following beneficial effect has:

1. by arranging the first heat dissipation mechanism and the second heat dissipation mechanism, heat generated by the current transformer can be dissipated to the maximum extent, so that the temperature of the current transformer is kept normal, and the normal work of the transformer and the breaker is ensured;

2. through setting up drive mechanism and pushing mechanism, make first heat dissipation mechanism and second heat dissipation mechanism keep linking, need not to set up more power supplies, not only save the cost, more avoided the heat that unnecessary power supply self produced to influence mutual-inductor work.

Drawings

Fig. 1 is a schematic structural diagram of a current transformer for an intelligent frame circuit breaker according to the present invention;

fig. 2 is an enlarged schematic view of a structure in fig. 1 according to the present invention.

In the figure: the transformer comprises a driving motor 1, a box body 2, a second sliding block 3, a sliding groove 4, a first belt pulley 5, a heat radiation fan 6, a reciprocating lead screw 7, a transformer body 8, a first sliding block 9, a connecting rod 10, an airflow plate 11, a rectangular plate 12, a rectangular groove 13, a heat radiation groove 14, a rotating shaft 15, a second belt pulley 16, a belt 17, a rotating wheel 18, a rotating rod 19 and a sleeve 20.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-2, current transformer for intelligent frame circuit breaker includes box 2 and installs the mutual-inductor body 8 in box 2 inside, and the upper end fixedly connected with driving motor 1 of box 2, driving motor 1's output shaft run through the upper end of box 2 and extend to inside, and the terminal coaxial fixedly connected with of output shaft of driving motor 1 has reciprocal lead screw 7.

Install on the reciprocal lead screw 7 and be used for providing the first heat dissipation mechanism of heat dissipation wind for mutual-inductor body 8, first heat dissipation mechanism includes sleeve 20 and radiator fan 6, and sleeve 20 threaded connection is on reciprocal lead screw 7, and radiator fan 6 fixed connection is on the lateral wall of sleeve 20.

The inside wall of box 2 is gone up and has been seted up spout 4 along vertical direction, and it has second slider 3 to slide in the spout 4, second slider 3 and sleeve 20 fixed connection.

The coaxial fixedly connected with first belt pulley 5 of driving motor 1's output shaft, the interior top fixedly connected with rectangular plate 12 of box 2, rectangular channel 13 has been seted up to the lower extreme of rectangular plate 12, and sliding connection has first slider 9 in the rectangular channel 13.

Install on the first slider 9 and be used for providing the second heat dissipation mechanism of heat dissipation wind for box 2, the second heat dissipation mechanism includes connecting rod 10 and wind flow board 11, and the upper end fixed connection of connecting rod 10 is at the lower extreme of first slider 9, and the upper end fixed connection of wind flow board 11 is at the lower extreme of connecting rod 10, has seted up the radiating groove 14 of a plurality of equipartitions on the lateral wall of box 2.

The interior top of box 2 is gone up the rotation and is connected with pivot 15, installs the pushing mechanism who is used for promoting first slider along horizontal direction reciprocating motion on the pivot 15, and pushing mechanism includes runner 18 and bull stick 19, and the coaxial fixed connection of runner 18 is at the end of pivot 15, and the one end rotation of bull stick 19 is connected on runner 18, and the other end rotation is connected on first slider 9.

The rotating shaft 15 is provided with a transmission mechanism for providing power for the pushing mechanism, the transmission mechanism comprises a second belt pulley 16, the second belt pulley 16 is coaxially and fixedly connected to the rotating shaft 15, and the second belt pulley 16 is in transmission connection with the first belt pulley 5 through a belt 17.

The heat dissipation fan 6 and the driving motor 1 are both powered by a rechargeable battery.

The utility model discloses in, when the current transformer temperature is higher, open driving motor 1 and radiator fan 6, driving motor 1 drive reciprocating screw 7 rotates to make the cover establish sleeve 20 up-and-down reciprocating motion on reciprocating screw 7, sleeve 20 area radiator fan 6 moves together, thereby inside the heat dissipation wind that makes radiator fan 6 produce spreads all over box 2, makes 8 cooling of mutual-inductor body.

Further, the first belt pulley 5 is driven by the driving motor 1, the second belt pulley 16 is driven to rotate through the belt 17, the second belt pulley 16 drives the rotating wheel 18 to rotate through the rotating shaft 15, the rotating wheel 18 drives the first sliding block 9 to reciprocate along the horizontal direction through the rotating rod 19, so that the air flow plate 11 is driven to reciprocate horizontally to form air flow, the exchange rate of hot air and external cold air inside the box body 2 is accelerated through the heat dissipation groove 14, and the mutual inductor body 8 is enabled to obtain a good heat dissipation effect.

Claims

1. Current transformer for intelligent frame circuit breaker comprises a box body (2) and a transformer body (8) arranged in the box body (2), and is characterized in that the upper end of the box body (2) is fixedly connected with a driving motor (1), an output shaft of the driving motor (1) penetrates through the upper end of the box body (2) and extends into the box body, a reciprocating lead screw (7) is coaxially and fixedly connected with the tail end of the output shaft of the driving motor (1), a first heat dissipation mechanism used for providing heat dissipation wind for the transformer body (8) is arranged on the reciprocating lead screw (7), a first belt pulley (5) is coaxially and fixedly connected with the output shaft of the driving motor (1), a rectangular plate (12) is fixedly connected with the inner top of the box body (2), a rectangular groove (13) is formed in the lower end of the rectangular plate (12), and a first sliding block (9) is slidably connected in the rectangular groove, install on first slider (9) and be used for providing the second heat dissipation mechanism of heat dissipation wind for box (2), it is connected with pivot (15) to rotate on the interior top of box (2), install the pushing mechanism who is used for promoting first slider along horizontal direction reciprocating motion on pivot (15), install the drive mechanism who is used for providing power for pushing mechanism on pivot (15).

2. The current transformer for the smart frame circuit breaker according to claim 1, wherein the first heat dissipation mechanism comprises a sleeve (20) and a heat dissipation fan (6), the sleeve (20) is screwed on the reciprocating lead screw (7), and the heat dissipation fan (6) is fixedly connected to a side wall of the sleeve (20).

3. The current transformer for the intelligent frame circuit breaker according to claim 2, wherein a sliding groove (4) is formed in the inner side wall of the box body (2) along the vertical direction, a second sliding block (3) is slidably connected in the sliding groove (4), and the second sliding block (3) is fixedly connected with the sleeve (20).

4. The current transformer for the intelligent frame circuit breaker according to claim 1, wherein the second heat dissipation mechanism comprises a connecting rod (10) and an air flow plate (11), an upper end of the connecting rod (10) is fixedly connected to a lower end of the first sliding block (9), an upper end of the air flow plate (11) is fixedly connected to a lower end of the connecting rod (10), and a plurality of heat dissipation grooves (14) are uniformly distributed on a side wall of the box body (2).

5. The current transformer for the intelligent frame circuit breaker according to claim 1, wherein the pushing mechanism comprises a rotating wheel (18) and a rotating rod (19), the rotating wheel (18) is coaxially and fixedly connected to the end of the rotating shaft (15), one end of the rotating rod (19) is rotatably connected to the rotating wheel (18), and the other end of the rotating rod is rotatably connected to the first sliding block (9).

6. The current transformer for the intelligent frame circuit breaker according to claim 1, wherein the transmission mechanism comprises a second pulley (16), the second pulley (16) is coaxially and fixedly connected to the rotating shaft (15), and the second pulley (16) is in transmission connection with the first pulley (5) through a belt (17).