CN214123682U

CN214123682U - Coil pressing frame for dry type transformer

Info

Publication number: CN214123682U
Application number: CN202120364791.1U
Authority: CN
Inventors: 范时祥; 谭兴忠; 吴玉春
Original assignee: Shanghai Junqi Electric Co ltd
Current assignee: Shanghai Junqi Electric Co ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-09-03
Anticipated expiration: 2031-02-07

Abstract

The application relates to a coil pressing frame for a dry-type transformer, which relates to the technical field of dry-type transformers and comprises a base frame, wherein an electric core is arranged on the base frame, a transformation coil is sleeved on the electric core, and an upper fixing plate and a lower fixing plate which are used for clamping and fixing the transformation coil are arranged on the base frame; the expansion telescopic column is arranged on one side wall, in contact with the base frame, of the lower fixing plate and comprises a fixing column and a moving column, the moving column is arranged on the outer side wall of the fixing column in a sleeved mode, an elastic expansion body is arranged in the fixing column, one end, close to the moving column, of the elastic expansion body is provided with an elastic piece, and one end, far away from the elastic expansion body, of the elastic piece is fixedly arranged on one inner side wall, far away from the fixing column, of the moving column. The dry-type transformer has the effect of improving the damping performance of the dry-type transformer in the using process.

Description

Coil pressing frame for dry type transformer

Technical Field

The application relates to the technical field of dry-type transformers, in particular to a coil pressing frame for a dry-type transformer.

Background

The dry type transformer is a transformer with an iron core and a winding which are not immersed in insulating oil, and the dry type transformer has the advantages of fire resistance, maintenance free, strong overload capacity, long service life and the like, so the dry type transformer is widely applied to places of local lighting, high-rise buildings, airports and wharf CNC mechanical equipment.

The utility model discloses a chinese utility model patent that grant publication number is CN210722719U discloses a dry-type transformer with coil compact structure, including dry-type transformer frame, dry-type transformer main part and coil, be fixed with the dry-type transformer main part on the dry-type transformer frame, and the winding is provided with the coil in the dry-type transformer main part, the coil passes through clamping device and laminates with the dry-type transformer main part, be provided with cleaning device on the dry-type transformer frame. This dry-type transformer is provided with connecting plate, poker rod, fixed plate, spring, connecting rod, stripper plate, cushion, first accessory plate, second accessory plate, movable bin, fluting and gag lever post, can make the comparatively stable centre gripping of coil in dry-type transformer main part through this device, avoids long-time winding to set up the drawback that the coil can drop.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: in actual use, the frame is easy to vibrate and generate noise when the dry-type transformer runs, and the body health of people around the frame is affected.

SUMMERY OF THE UTILITY MODEL

In order to improve the damping performance of the dry type transformer in the using process, the application provides a coil pressing frame for the dry type transformer.

The application provides a coil compresses tightly frame for dry-type transformer adopts following technical scheme:

a coil pressing frame for a dry type transformer comprises a base frame, wherein an electric core is arranged on the base frame, a transformation coil is sleeved on the electric core, and an upper fixing plate and a lower fixing plate which are used for clamping and fixing the transformation coil are arranged on the electric core; the expansion telescopic column is arranged on one side wall, in contact with the base frame, of the lower fixing plate and comprises a fixing column and a moving column, the moving column is arranged on the outer side wall of the fixing column in a sleeved mode, an elastic expansion body is arranged in the fixing column, one end, close to the moving column, of the elastic expansion body is provided with an elastic piece, and one end, far away from the elastic expansion body, of the elastic piece is fixedly arranged on one inner side wall, far away from the fixing column, of the moving column.

Through adopting above-mentioned technical scheme, when upper fixed plate and bottom plate centre gripping vary voltage coil and electric core fixed mutually place on the bed frame, remove post and bed frame looks butt in the flexible post of inflation, make the elastic expansion body in the fixed column begin the expansion adjustment remove the compression degree of the elastic component in the post, when dry-type transformer began work and produced vibrations, the elastic expansion body and the elastic component combined action in the flexible post of inflation will shake the absorption to dry-type transformer's shock attenuation performance has been improved.

Preferably, one end of the elastic expansion body, which is close to the movable column, is provided with a limiting plate, and one end of the elastic member, which is close to the limiting plate, is fixedly arranged on the limiting plate.

Through adopting above-mentioned technical scheme, begin the inflation when the elastic expansion body, promote limiting plate compression elastic component, can produce the compression degree of vibrations and then control the absorptive capacity to the elastic component to vibrations according to the size of dry-type transformer, and the limiting plate has improved the stability of elastic expansion body and elastic component at deformation in-process, has improved holistic application.

Preferably, the inner side wall of the fixing column is provided with a limiting groove for limiting the limiting plate.

Through adopting above-mentioned technical scheme, the limiting plate slides and sets up in the spacing groove, and when the flexible post of inflation began work, the sliding range of limiting plate has been restricted to the spacing groove, and then has restricted the elastic expansion body and elastic component and has deformed in safe deformation within range, has improved the security of the flexible post.

Preferably, a fastening piece penetrates through the upper fixing plate, a cushion block is arranged at one end, close to the transformer coil, of the fastening piece, and the cushion block is abutted to the transformer coil.

Through adopting above-mentioned technical scheme, when upper fixed plate and bottom plate centre gripping vary voltage coil and electric core were fixed mutually and are placed on the bed frame, wear to establish the fastener on the upper fixed plate and compress tightly cushion and vary voltage coil looks butt, improved the stability of vary voltage coil on dry-type transformer.

Preferably, an elastic pad is arranged on one side wall of the cushion block, which is abutted against the transformer coil.

By adopting the technical scheme, when the transformer coil generates vibration, the elastic cushion on the cushion block can absorb the vibration, so that the overall damping capacity of the dry-type transformer is improved.

Preferably, the sound absorption blocks are embedded on the side walls of the upper fixing plate and the lower fixing plate, which are relatively close to the battery core.

Through adopting above-mentioned technical scheme, when electric core produced vibrations, inhale the vibrations that the sound piece can absorb electric core production, improved the holistic damping performance of dry-type transformer.

Preferably, the upper fixing plate and the lower fixing plate are both provided with elastic columns symmetrically to the transformer coil.

Through adopting above-mentioned technical scheme, when installing upper fixed plate and bottom plate, the elasticity post makes upper fixed plate and bottom plate position on electric core more stable, and when electric core produced vibrations, the elasticity post can absorb vibrations, has improved the holistic damping performance of dry-type transformer.

And an elastic abutting block is arranged on the inner side wall of the transformation coil, which is close to the battery core.

Through adopting above-mentioned technical scheme, when electric core or transformer coil begin to produce vibrations, elasticity butt piece can absorb vibrations, has improved the holistic damping performance of dry-type transformer.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the dry-type transformer starts to work and generates vibration, the elastic expansion body and the elastic piece in the expansion telescopic column act together to absorb the vibration, so that the vibration absorption performance of the dry-type transformer is improved;

2. through wearing to establish the fastener on the upper fixed plate, and the fastener is close to the one end of transformer coil and is provided with the cushion, when upper fixed plate and bottom plate centre gripping transformer coil and electric core fixed mutually place on the bed frame, the fastener compresses tightly cushion and transformer coil looks butt, has improved transformer coil's stability on dry-type transformer.

Drawings

Fig. 1 is a schematic view of an overall structure of a coil pressing frame for a dry type transformer according to an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of an embodiment of the present application showing the expansion/contraction column in a highlighted manner;

fig. 3 is a schematic structural diagram of an upper fixing plate according to an embodiment of the present application.

Description of reference numerals: 1. a base frame; 2. an electric core; 3. a transformer coil; 4. an upper fixing plate; 5. a lower fixing plate; 6. expanding the telescopic column; 61. fixing a column; 62. moving the column; 7. an elastic expansion body; 8. an elastic member; 9. a limiting plate; 10. a limiting groove; 11. a fastener; 12. cushion blocks; 13. an elastic pad; 14. a sound absorbing block; 15. an elastic column; 16. an elastic abutting block.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses coil pressing frame for dry type transformer.

Referring to fig. 1 and 2, a coil compresses tightly frame for dry-type transformer, includes two parallely placed cuboid bed frames 1, is provided with electric core 2 of E style of calligraphy on the bed frame 1, all overlaps on three stands of electric core 2 to be equipped with cylindrical transformer coil 3, and is provided with the upper fixed plate 4 and the bottom plate 5 that are the cuboid that are used for centre gripping fixed transformer coil 3 on electric core 2. After the dry type transformer is installed, the base frame 1 receives the electric core 2, and the upper fixing plate 4 and the lower fixing plate 5 clamp and fix the transformer coil 3 on the electric core 2, so that the stability of the whole structure of the dry type transformer is improved.

The expansion telescopic column 6 that is the cuboid is provided with on the lateral wall that bottom plate 5 and bed frame 1 contacted, and has the standing groove with expansion telescopic column 6 looks adaptation on the bed frame 1, and in this embodiment, the preferred four of the number of expansion telescopic column 6. The expansion column 6 is including fixed column 61 and the cover that sets up on bottom plate 5 establishing can be at fixed column 61 outer gliding removal post 62 outside fixed column 61, be provided with elastic expansion body 7 in the fixed column 61, elastic expansion body 7 is close to the one end that removes post 62 and is provided with the limiting plate 9 that matches with fixed column 61 bore, be provided with on the inside wall of fixed column 61 and carry out spacing groove 10 to limiting plate 9, limiting plate 9 is provided with elastic component 8 on keeping away from an elastic expansion body 7's the lateral wall, elastic component 8 keeps away from the fixed setting of one end of limiting plate 9 on moving a inside wall that limiting plate 9 was kept away from to post 62. In this embodiment, the elastic expansion body 7 may be a rubber balloon, and the elastic member 8 may be a compression spring. When the dry-type transformer starts to work and generates vibration, the elastic expansion body 7 and the elastic part 8 in the expansion telescopic column 6 act together to absorb the vibration generated by the dry-type transformer through elastic deformation, and the limiting plate 9 between the elastic expansion body 7 and the elastic part 8 improves the stability of the elastic expansion body and the elastic part in the deformation process and improves the applicability of the expansion telescopic column 6.

A cylindrical fastener 11 penetrates through the upper fixing plate 4, a cuboid cushion block 12 is arranged at one end, close to the transformer coil 3, of the fastener 11, and an elastic cushion 13 is arranged on one side wall, abutted to the transformer coil 3, of the cushion block 12. In this embodiment, the elastic pad 13 may be a rubber pad. When the upper fixing plate 4 and the lower fixing plate 5 clamp the transformer coil 3 and the battery core 2 to be fixedly placed on the base frame 1, the cushion block 12 and the transformer coil 3 are tightly abutted by the fastening piece 11 penetrated by the upper fixing plate 4, and the elastic cushion 13 on the cushion block 12 can absorb the vibration generated by the transformer coil 3 during working, so that the damping capacity of the whole structure is improved.

A cuboid sound absorption block 14 is embedded on one side wall of the upper fixing plate 4 and the lower fixing plate 5 which is relatively close to the electric core 2. In this embodiment, the sound absorption block may be a rubber sound absorption block. When the dry-type transformer starts to work and generates vibration, the sound absorption block 14 can absorb the vibration and noise generated by the battery cell 2, and the overall vibration absorption performance is improved.

Referring to fig. 1 and 3, an elastic abutting block 16 in a rectangular shape is disposed on the inner side wall of the transformer coil 3 close to the electric core 2, and the transformer coil 3 is symmetrical to the upper fixing plate 4 and the lower fixing plate 5 and is provided with an elastic column 15 in a cylindrical shape. When the dry-type transformer starts to work and generates vibration, the elastic abutting block 16 and the elastic column 15 can absorb the vibration generated by the transformer coil 3, and the overall vibration absorption performance is improved.

The implementation principle of the coil pressing frame for the dry-type transformer in the embodiment of the application is as follows: when an upper fixing plate 4 and a lower fixing plate 5 clamp an electric core 2 on a rack, a transformation coil 3 is sleeved on the electric core 2, a cushion block 12 is tightly abutted to the transformation coil 3 by a fastener 11 penetrating through the upper fixing plate 4, so that the transformation coil 3 is more stable, when the dry-type transformer generates vibration, an elastic expansion body 7 and an elastic piece 8 in an expansion telescopic column 6 interact with each other through adjustment of a limiting plate 9 and a limiting groove 10, the vibration generated by the dry-type transformer is absorbed, and the damping capacity of the dry-type transformer is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A coil pressing frame for a dry type transformer is characterized in that: the transformer coil fixing device comprises a base frame (1), wherein an electric core (2) is arranged on the base frame (1), a transformer coil (3) is sleeved on the electric core (2), and an upper fixing plate (4) and a lower fixing plate (5) which are used for clamping and fixing the transformer coil (3) are arranged on the electric core (2); be provided with expansion telescopic column (6) on the lateral wall that bottom plate (5) and bed frame (1) contacted, expansion telescopic column (6) are established removal post (62) at fixed column (61) lateral wall including fixed column (61) and cover, be provided with elastic expansion body (7) in fixed column (61), the one end that elastic expansion body (7) are close to removal post (62) is provided with elastic component (8), the fixed setting of one end that elastic expansion body (7) were kept away from in elastic component (8) is on removing a lateral wall that fixed column (61) was kept away from in post (62).

2. The coil hold-down frame for a dry-type transformer as set forth in claim 1, wherein: one end of the elastic expansion body (7) close to the movable column (62) is provided with a limiting plate (9), and one end of the elastic piece (8) close to the limiting plate (9) is fixedly arranged on the limiting plate (9).

3. The coil hold-down frame for a dry-type transformer as set forth in claim 2, wherein: and a limiting groove (10) for limiting the limiting plate (9) is formed in the inner side wall of the fixing column (61).

4. The coil hold-down frame for a dry-type transformer as set forth in claim 1, wherein: the upper fixing plate (4) is provided with a fastener (11) in a penetrating mode, one end, close to the transformation coil (3), of the fastener (11) is provided with a cushion block (12), and the cushion block (12) is connected with the transformation coil (3) in a propping mode.

5. The coil hold-down frame for a dry-type transformer as set forth in claim 4, wherein: an elastic pad (13) is arranged on one side wall of the cushion block (12) which is abutted against the transformation coil (3).

6. The coil hold-down frame for a dry-type transformer as set forth in claim 1, wherein: and the side walls of the upper fixing plate (4) and the lower fixing plate (5) which are relatively close to the battery core (2) are embedded with sound absorption blocks (14).

7. The coil hold-down frame for a dry-type transformer as set forth in claim 1, wherein: the upper fixing plate (4) and the lower fixing plate (5) are both symmetrical to the transformer coil (3) and are provided with elastic columns (15).

8. The coil hold-down frame for a dry-type transformer as set forth in claim 1, wherein: and an elastic abutting block (16) is arranged on the inner side wall of the transformation coil (3) close to the battery cell (2).