CN213583443U

CN213583443U - Dry-type transformer

Info

Publication number: CN213583443U
Application number: CN202022935193.3U
Authority: CN
Inventors: 孙子兵; 董瑛
Original assignee: Suzhou Haisen Electric Appliance Co ltd
Current assignee: Suzhou Haisen Electric Appliance Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-06-29
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a dry-type transformer, including dry-type transformer main part and around establishing the coil in dry-type transformer main part, be equipped with multiunit coil in the dry-type transformer main part and compress tightly damping device, coil compress tightly damping device including setting up end fixing plate and activity clamp plate about dry-type transformer main part to and connect the cylinder extension spring of end fixing plate and activity clamp plate. The utility model provides a dry-type transformer through the answer effort of cylinder extension spring self, makes PMKD and activity clamp plate carry out effective and even axial to transformer coil and compress tightly and the shock attenuation.

Description

Dry-type transformer

Technical Field

The utility model relates to a dry-type transformer.

Background

The dry-type transformer is widely used in places such as local lighting, high-rise buildings, airports, wharf CNC mechanical equipment and the like, and simply, the dry-type transformer refers to a transformer with an iron core and a winding which are not immersed in insulating oil, the cooling mode comprises natural air cooling and forced air cooling, the natural air cooling is that the transformer can continuously operate for a long time under rated capacity, the forced air cooling is adopted, the output capacity of the transformer can be improved by 50%, and the dry-type transformer is suitable for intermittent overload operation or emergency accident overload operation.

The current dry-type transformer can vibrate in the use process, the coil inside the dry-type transformer can loose due to vibration and some uncertain factors, and the function of the whole transformer is slowly influenced after a long time along with the increasingly serious loose condition of the circuit, so that the dry-type transformer can not be normally used.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dry-type transformer, its is rational in infrastructure, realizes carrying out effective and even axial to transformer coil and compresses tightly and the shock attenuation.

In order to achieve the purpose, the technical scheme of the utility model is to design a dry-type transformer, which comprises a dry-type transformer main body and coils wound on the dry-type transformer main body, wherein a plurality of groups of coil compressing and damping devices are arranged on the dry-type transformer main body, and the plurality of groups of coil compressing and damping devices are uniformly distributed along the central axis of the dry-type transformer main body;

coil compresses tightly damping device is including setting up the PMKD of dry-type transformer main part lower extreme, the top of PMKD and the both sides of dry-type transformer main part divide and are equipped with ascending riser, be equipped with a plurality of locating holes on the lateral surface of riser, can insert in the locating hole and be equipped with first coupling nut, the upper end of dry-type transformer main part is equipped with the activity clamp plate, the bottom of activity clamp plate and the both sides of dry-type transformer main part divide and are equipped with decurrent second riser, be equipped with a screw hole on the lateral surface of second riser, the threaded hole sets firmly second coupling nut, be equipped with cylinder extension spring between first coupling nut and the second coupling nut.

Preferably, the cylindrical extension spring comprises a spring body, a first hook and a second hook, wherein the first hook and the second hook are arranged at two ends of the spring body, the first hook is connected with the first connecting nut, and the second hook is connected with the second connecting nut.

Preferably, a through hole matched with the bottom of the dry-type transformer main body is formed in the center of the bottom of the fixed bottom plate, and a positioning block is fixedly connected in the through hole; and fixedly mounting the fixed bottom plate at the bottom of the dry-type transformer main body through the through hole and the positioning block.

Preferably, the movable pressing plate is sleeved on the surface of the top end of the dry-type transformer main body, the movable pressing plate is connected with the dry-type transformer main body in a sliding manner, and the top end of the dry-type transformer main body is fixedly connected with the limiting plate; the movable pressing plate slides on the dry-type transformer main body to play a limiting role.

Preferably, the contact surfaces of the fixed bottom plate and the movable pressing plate with the coil are respectively provided with a gasket made of a silica gel material, and the coil is protected and insulated in the pressing process.

Preferably, the dry-type transformer main body, the fixed baseplate, the movable pressing plate, the positioning block and the central axis of the limiting plate are all arranged in a superposition manner.

The utility model has the advantages and the beneficial effects that: the utility model provides a dry-type transformer, the multiunit coil that sets up on dry-type transformer main part compresses tightly damping device, through the restoring effort of cylinder extension spring self, makes fixed baseplate and movable pressing plate carry out effective and even axial to the transformer coil and compress tightly and the shock attenuation to can adopt simple mode ration adjustment to exert the axial packing force on the coil.

Drawings

Fig. 1 is a schematic diagram of the present invention.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The utility model discloses the technical scheme who specifically implements is:

as shown in fig. 1, a dry-type transformer includes a dry-type transformer body 1 and a coil 2 wound on the dry-type transformer body 1, wherein a plurality of coil compression damping devices are arranged on the dry-type transformer body 1, and the plurality of coil compression damping devices are uniformly distributed along a central axis of the dry-type transformer body 1;

the coil pressing and damping device comprises a fixing bottom plate 3 arranged at the lower end of a dry-type transformer body 1, wherein the top end of the fixing bottom plate 3 and two sides of the dry-type transformer body 1 are respectively provided with an upward first vertical plate 4, the outer side surface of the first vertical plate 4 is provided with a plurality of positioning holes 5, first connecting nuts 6 can be inserted into the positioning holes 5, the upper end of the dry-type transformer body 1 is provided with a movable pressing plate 7, the bottom end of the movable pressing plate 7 and two sides of the dry-type transformer body 1 are respectively provided with a downward second vertical plate 8, the outer side surface of the second vertical plate 8 is provided with a threaded hole 9, second connecting nuts 10 are fixedly arranged in the threaded hole 9, and cylindrical stretching springs 11 are arranged between the first connecting nuts 6 and the second connecting nuts 10.

A through hole 12 matched with the bottom of the dry-type transformer main body 1 is formed in the center of the bottom of the fixed bottom plate 3, and a positioning block 13 is fixedly connected in the through hole 12; the fixing bottom plate 3 is fixedly mounted on the bottom of the dry-type transformer body 1 through the through hole 12 and the positioning block 13.

The movable pressing plate 7 is sleeved on the top end surface of the dry-type transformer main body 1, the movable pressing plate 7 is connected with the dry-type transformer main body 1 in a sliding manner, and the top end of the dry-type transformer main body 1 is fixedly connected with a limiting plate 14; the movable pressing plate 7 slides on the dry-type transformer main body 1 to play a limiting role.

The contact surfaces of the fixed bottom plate 3 and the movable pressing plate 7 with the coil 2 are respectively provided with a gasket 15 made of silica gel material, and the coil 2 is protected and insulated in the pressing process.

The dry-type transformer main body 1, the fixed base plate 3, the movable pressing plate 7, the positioning block 13 and the limiting plate 14 are arranged in a superposition mode.

The utility model discloses a theory of operation does: in the assembly process of the dry-type transformer, the fixed bottom plate 3 is fixedly arranged at the bottom of the dry-type transformer main body 1 through the through hole 12 and the positioning block 13, the top surface of the fixed bottom plate 3 abuts against the lower part of the coil 2 and is sleeved on the movable pressing plate 7 at the top of the dry-type transformer main body 1, and the bottom surface of the movable pressing plate 7 abuts against the upper part of the coil 2; screwing and fixing a second connecting nut 10 connected with the upper end of a cylindrical extension spring 11 in a threaded hole 9 of a second vertical plate 8, fixedly connecting the second vertical plate 8 with a movable pressing plate 7, screwing and fixing a first connecting nut 6 connected with the lower end of the cylindrical extension spring 11 in a positioning hole 5 of a first vertical plate 4, and fixedly connecting the first vertical plate 4 with a fixed bottom plate 3;

the utility model discloses rely on being equipped with multiunit coil on dry-type transformer main part 1 and compress tightly damping device, the reply effort through cylinder extension spring 11 self makes the PMKD 3 and the activity clamp plate 7 of butt lower extreme on coil 2 carry out effective and even axial to coil 2 and compress tightly and the shock attenuation, and can adopt simple mode ration adjustment to apply the axial packing force on the coil, twist first coupling nut 6 soon and to adjust the default to coil 2 different packing forces in twisting the locating hole 5 of different position height, the process of applying the axial packing force to coil 2 need not use dynamometry instrument, operation simple process.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A dry-type transformer comprises a dry-type transformer main body and coils wound on the dry-type transformer main body, and is characterized in that a plurality of groups of coil pressing and damping devices are arranged on the dry-type transformer main body and are uniformly distributed along the central axis of the dry-type transformer main body;

coil compresses tightly damping device is including setting up the PMKD of dry-type transformer main part lower extreme, the top of PMKD and the both sides of dry-type transformer main part divide and are equipped with ascending riser, be equipped with a plurality of locating holes on the lateral surface of riser, can insert in the locating hole and be equipped with first coupling nut, the upper end of dry-type transformer main part is equipped with the activity clamp plate, the bottom of activity clamp plate and the both sides of dry-type transformer main part divide and are equipped with decurrent second riser, be equipped with the screw hole on the lateral surface of second riser, the threaded hole has set firmly second coupling nut, be equipped with cylinder extension spring between first coupling nut and the second coupling nut.

2. A dry-type transformer as claimed in claim 1, wherein the cylindrical extension spring comprises a spring body, and a first hook and a second hook disposed at two ends of the spring body, the first hook is connected to the first connection nut, and the second hook is connected to the second connection nut.

3. A dry-type transformer as claimed in claim 2, wherein the bottom center of the fixing bottom plate is provided with a through hole matching with the bottom of the dry-type transformer body, and a positioning block is fixedly connected in the through hole.

4. The dry-type transformer according to claim 3, wherein the movable pressing plate is sleeved on a top end surface of the dry-type transformer body, the movable pressing plate is slidably connected with the dry-type transformer body, and a limiting plate is fixedly connected to a top end of the dry-type transformer body.

5. A dry-type transformer as claimed in claim 4, wherein the contact surfaces of the coil and the fixed and movable bottom plates are provided with a gasket made of silicone material.

6. A dry-type transformer as claimed in claim 5, wherein the central axes of the dry-type transformer main body, the fixed bottom plate, the movable pressing plate, the positioning block and the limiting plate are all coincident.