CN217306294U

CN217306294U - Voltage transformer and PT handcart

Info

Publication number: CN217306294U
Application number: CN202220902844.5U
Authority: CN
Inventors: 黄分田
Original assignee: Youxing Electric Co ltd; Shengzhongyi Power Technology Co ltd
Current assignee: Youxing Electric Co ltd; Shengzhongyi Power Technology Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-08-26
Anticipated expiration: 2032-04-15

Abstract

The utility model discloses a voltage transformer, including insulating casing, two at least voltage transformer units, be used for to the electrically conductive copper spare of carrying out electrically conductive connection between these voltage transformer units, every voltage transformer unit all includes interconnect complex primary winding, secondary winding and iron core, and insulating casing's the outside is provided with and is used for to electrically conductive copper spare and touch the connection terminal that carries out the connection between the arm and be used for carrying out the wiring hole of connecting between voltage detection instrument and the secondary winding. The utility model also discloses a PT handcart, including voltage transformer, still including chassis, the support of vertical setting, wherein the both sides on chassis are provided with the guide pulley, the rear upside on chassis is connected to the support vertical, and the front side of support is connected and is fixed with the installing frame, is provided with on the front bezel and wears to establish the arm that touches in the holding intracavity. The utility model discloses compact structure, security performance are higher.

Description

Voltage transformer and PT handcart

Technical Field

The utility model relates to a voltage transformer and PT handcart.

Background

Along with the structure of the existing PT cabinet is made more and more compact, and the size is smaller and smaller, the structure and the size of the PT handcart also need to be changed accordingly. For example, be applied to the PT handcart of three-phase electricity, need dispose two at least voltage transformer usually, these voltage transformer's the outside need carry out the conductive connection through the copper bar, still need use the insulating boot to cover usually in copper bar conductive connection department, not only the structure is complicated, and the assembly is comparatively inconvenient, and the security performance remains further improvement moreover.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a voltage transformer and PT handcart that simple structure, convenient assembling, security performance are higher.

In order to achieve the above object, the present invention provides a voltage transformer, including an insulating housing, at least two voltage transformer units, a conductive copper member for conducting connection between these voltage transformer units, each voltage transformer unit includes a primary winding, a secondary winding and an iron core which are connected with each other, the outside of the insulating housing is provided with a wiring hole for connecting the conductive copper member with the contact arm and for connecting the voltage detecting instrument with the secondary winding.

The utility model provides a PT handcart including above-mentioned voltage transformer still including chassis, the support of vertical setting, wherein the both sides on chassis are provided with the guide pulley, and the rear upside on chassis is connected to the support vertical, and the front side of support is connected and is fixed with the installing frame, the installing frame is around being formed with the holding chamber that is used for holding voltage transformer between roof, bottom plate, front bezel, curb plate and the support of installing frame, is provided with on the front bezel and wears to establish the arm that touches in the holding chamber.

Furthermore, the wiring hole is formed in the end face of the rear side of the voltage transformer, a through hole is formed in the rear side of the support corresponding to the voltage transformer, and a baffle used for covering the through hole is arranged on the rear side of the support.

Furthermore, the top plate, the bottom plate, the front plate and the side plates of the mounting frame are respectively formed by bending a metal plate.

Further, it is six to touch the arm, and six touch the arm and divide into horizontal two, and every is listed as all including the arm that touches of three longitudinal distribution, voltage transformer's wire holder is three, and one side of terminal surface before the insulating casing of longitudinal distribution, and the opposite side of terminal surface is provided with the breach before the insulating casing, and one of them is listed as three and is touched the arm and is connected with voltage transformer's three wire holder cooperation respectively, and another is listed as three and is touched the arm and corresponds the setting respectively in breach department.

The utility model has the advantages that: the whole structure is simple and compact, the installation is convenient, and the safety is higher.

Drawings

Fig. 1 is a structural diagram of a voltage transformer according to an embodiment of the present invention;

fig. 2 is a structural diagram of a PT handcart according to an embodiment of the present invention;

fig. 3 is a structural diagram of a mounting frame according to an embodiment of the present invention;

fig. 4 is a schematic view of the baffle plate according to the embodiment of the present invention;

fig. 5 is a schematic diagram of the voltage transformer and the contact arm according to the embodiment of the present invention.

Detailed Description

Following through the utility model discloses embodiment when specifically using the scene is right the utility model discloses a technical scheme carries out detailed explanation.

This embodiment provides a PT handcart, as shown in fig. 1-5: including chassis 1, the support 2 of vertical setting, wherein the both sides of chassis 1 are provided with guide pulley 11, and the rear upside on chassis 1 is connected to support 2 vertical, and the front side of support 2 is connected and is fixed with installing frame 3, installing frame 3 is including roof 31, bottom plate 32, front bezel 33, curb plate 34, and front bezel 33 vertical connection is between roof 31 and bottom plate 32, and curb plate 34 is connected in roof 31, bottom plate 32, the lateral part of front bezel 33, and roof 31, bottom plate 32, front bezel 33 of installing frame 3, curb plate 34 and support 2 are around being formed with holding chamber 4 between around, and the holding installation is fixed with voltage transformer 5 in holding chamber 4, is provided with on the front bezel 33 and wears to establish the arm that touches in holding chamber 4.

The voltage transformer 5 comprises an insulating shell 51, at least two voltage transformer units and a conductive copper part for conducting connection between the voltage transformer units, each voltage transformer unit comprises a primary winding, a secondary winding and an iron core which are mutually connected and matched, and a wire holder 52 for connecting the conductive copper part and a contact arm and a wire hole 53 for connecting a voltage detection instrument and the secondary winding are arranged on the outer side of the insulating shell 51. The utility model discloses a voltage transformer utilizes same insulating casing 51 to encapsulate at least two voltage transformer units (traditional single-phase voltage transformer promptly) and electrically conductive copper spare together, makes overall structure more compact, need not dispose insulating boot in electrically conductive junction than prior art, therefore simple structure, easy to assemble have higher security. The specific detection principle of the voltage transformer unit, the specific connection mode of the conductive copper part and the voltage transformer unit and the like are conventional technologies and can be adjusted according to actual conditions.

Wiring hole 53 sets up on voltage transformer 5's rear side end face, support 2 is provided with through-hole 21 at the rear side that corresponds voltage transformer 5, and 2 rear sides of support are provided with and are used for right baffle 6 that through-hole 21 covers, detachable connect between baffle 6 and the support 2, just can be convenient connect instrument and wiring hole 53 through dismantling baffle 6, conveniently detect voltage.

The top plate 31, the bottom plate 32, the front plate 33 and the side plates 34 of the mounting frame 3 are formed by respectively bending a metal plate, so that the structure is simple, and the production and the processing are convenient.

The contact arms are six, the six contact arms are divided into two transverse rows, each row comprises three longitudinally distributed contact arms, the wire holders 52 of the voltage transformer 5 are three, the six contact arms are longitudinally distributed on one side of the front end face of the insulating shell 51, a notch 54 is formed in the other side of the front end face of the insulating shell 51, one row of three contact arms 61 are respectively matched and connected with the three wire holders 52 of the voltage transformer 5, the other row of three contact arms 62 are respectively and correspondingly arranged at the notch 54 (shown in fig. 5), so that the six contact arms can keep the same extension length, the structure is compact, the connection is convenient, fuses are arranged in the three contact arms 61, lightning arresters are arranged in the other row of three contact arms 62, and copper bars 7 are connected between the end parts, corresponding to the voltage transformer 5, of the other row of three contact arms 62 and the chassis 1. The ends of the six contact arms are all fixed to the front plate 33 by bolts.

The above embodiment is only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.

Claims

1. A voltage transformer, characterized by: the voltage transformer comprises an insulating shell, at least two voltage transformer units and a conductive copper piece for conducting connection between the voltage transformer units, wherein each voltage transformer unit comprises a primary winding, a secondary winding and an iron core which are mutually connected and matched, and a wire holder for connecting the conductive copper piece and a contact arm and a wire hole for connecting a voltage detection instrument and the secondary winding are arranged on the outer side of the insulating shell.

2. A PT hand truck comprising the voltage transformer of claim 1, wherein: still including chassis, the support of vertical setting, wherein the both sides on chassis are provided with the guide pulley, and the rear upside on chassis is connected to the support is vertical, and the front side of support is connected and is fixed with the installing frame, the installing frame is around being formed with the holding chamber that is used for holding voltage transformer between roof, bottom plate, front bezel, curb plate and the support of installing frame, is provided with the arm that touches of wearing to establish in the holding chamber on the front bezel.

3. The PT handcart of claim 2, wherein: the wiring hole is arranged on the end face of the rear side of the voltage transformer, the bracket is provided with a through hole at the rear side corresponding to the voltage transformer, and the rear side of the bracket is provided with a baffle used for covering the through hole.

4. The PT handcart of claim 2, wherein: the top plate, the bottom plate, the front plate and the side plates of the mounting frame are respectively formed by bending a metal plate.

5. The PT handcart of claim 2, wherein: touch the arm and be six, six touch the arm and divide into horizontal two, every is listed as all including the arm that touches of three longitudinal distribution, voltage transformer's wire holder is three, and one side of terminal surface before the longitudinal distribution of insulating casing, and the opposite side of terminal surface is provided with the breach before the insulating casing, and one of them three touches the arm and is connected with voltage transformer's three wire holder cooperation respectively, and another three touches the arm and corresponds the setting respectively in breach department.