Mounting structure of transformer cushion block

Abstract

The utility model relates to the field of transformer cushion blocks, in particular to an installation structure of a transformer cushion block, and aims to solve the technical problem that the existing transformer cushion block is extremely easy to horizontally shift and slip due to the installation mode that the existing transformer cushion block is completely propped and fixed by a bolt. According to the technical scheme, the installation structure of the transformer cushion block comprises a cushion block body, a fixing piece integrally connected to the lower end of the cushion block body and matched with the radian of a transformer coil, a sliding groove, an auxiliary positioning assembly and an elastic pressing piece piece. The cushion block body is provided with the auxiliary positioning assembly matched with the channel steel wall plate, the auxiliary positioning assembly can be locked on the channel steel when the cushion block body is tightened and fixed through the bolt, the situation that the cushion block body horizontally slides to be separated from the transformer is avoided, the installation stability of the cushion block body is better, and the service life of the transformer is prolonged. The problem that an existing transformer cushion block is extremely prone to horizontal displacement and slipping due to the fact that the transformer cushion block is completely supported and fixed through a bolt is solved.

Description

Technical Field

[0001] The utility model relates to the field of transformer pads, in particular to a mounting structure of a transformer pad. Background Art

[0002] The transformer is mainly composed of an iron core, a coil, clamps and various fixings. The high and low voltage coils need to be fixed with special pads. The compression bolts connect the channel steel and the pads in turn. The pads are located on the channel steel. The compression force formed by the compression bolts on the pads fixes the high and low voltage coils. Therefore, the pads are an indispensable fixing for the transformer.

[0003] The existing Chinese patent with announcement number CN217008866U discloses a dry-type transformer pad that is conducive to heat dissipation of coils with air ducts, including a fixed pad, on which a ventilation slot is opened; a plurality of heat dissipation components, which are fixedly connected to the fixed pad; a plurality of shockproof blocks, which are connected to both sides of the ventilation slot; the lower surface of the shockproof block contacts the coil, and the channel steel and the fixed pad are directly connected by bolts, and the tightness between the fixed pad and the coil is adjusted by adjusting the bolts to move up and down. The utility model dissipates heat through heat sinks and ventilation slots, increases the heat dissipation area of ​​the coil air duct, improves the heat dissipation efficiency, and thus reduces the manufacturing cost of the transformer coil, and improves the market competitiveness. The pad disclosed in the patent is intended to enhance its function of assisting the heat dissipation of the transformer, but the installation and fixation of this ordinary pad is completely dependent on bolts to tighten, and there is no other auxiliary fixing structure. Once the equipment bracket on the transformer or the upper part of the channel steel collides and shakes, the pad is very likely to shift horizontally, resulting in looseness between the transformer coil.

[0004] Therefore, in view of the fact that the above-mentioned existing transformer pads are completely fixed by bolts and are very prone to horizontal displacement and slippage, a pad can be designed that can be installed in conjunction with channel steel to further assist in fixation and enhance the installation stability of the pad. Utility Model Content

[0005] In order to overcome the problem that the existing transformer pad is easily displaced and slipped due to the installation method that is completely fixed by bolts.

[0006] The technical solution of the utility model is: a mounting structure of a transformer pad, comprising a pad body, a fixing plate integrally connected to the lower end of the pad body and adapted to the curvature of the transformer coil, a slide groove, an auxiliary positioning component, and an elastic pressing piece; the pad body is arranged between the channel steel and the transformer coil, the fixing plate is close to the outer edge of the transformer coil, a slide groove with an open upper end is provided on one side of the pad body, one end of the auxiliary positioning component is arranged in the slide groove and slides up and down along the slide groove, the other end of the auxiliary positioning component is clamped on the wall plate of the channel steel, a longitudinal elastic pressing piece is provided on the upper end of the pad body, a bolt is passed between the channel steel wall plate and the auxiliary positioning component and moves downward to press against the elastic pressing piece to press the pad body.

[0007] Preferably, by providing an auxiliary positioning assembly that is compatible with the channel steel wall plate on the pad body, the auxiliary positioning assembly can be locked on the channel steel while the pad body is tightened and fixed with bolts, thereby preventing the pad body from horizontally sliding away from the transformer, and the installation stability of the pad body is better.

[0008] Preferably, the auxiliary positioning assembly includes a slider and a block; a limiting slot is provided on the side wall of the slide slot, and a block is integrally fixedly connected to one side of the slider. The slider moves up and down in the slide slot and the block is embedded in the limiting slot. An end limit is formed between the limiting slot and the block to prevent the slider from slipping out of the slide slot. When the bolt is turned downward, the pad block body is pushed downward and the relative slider rises.

[0009] Preferably, the auxiliary positioning assembly also includes a back plate, a lower pad, an upper pad, and a through hole; a rotating shaft is provided at the upper end of the slider, and a shaft sleeve is provided at the lower end of the back plate and is sleeved on the rotating shaft; one side of the back plate is integrally connected with the lower pad and the upper pad from bottom to top; the lower pad and the upper pad are provided with longitudinally penetrating through holes; the back plate, the lower pad and the upper pad form a U-shaped trough structure, which is horizontally clipped on the wall plate of the channel steel to prevent longitudinal separation between the pad body and the channel steel.

[0010] Preferably, holes are opened on the channel steel wall plate, and the lower pad and the upper pad are respectively covered on the lower side and the upper side of the channel steel wall plate and the through holes are connected with the holes on the channel steel. The bolts are inserted into the through holes and are threadedly connected with the nuts on the lower side of the lower pad. After the bolts are inserted into the through holes and the holes on the channel steel, the nut is first screwed in from the lower end of the bolt, and then the bolt is continuously moved downward to rest against the elastic pressing piece. Finally, after the pad body is completely tightened, the nut is rotated upward to lock the bolt.

[0011] Preferably, an embedding groove is provided at the upper end of the pad body, and a column groove extending downward is provided at the bottom of the embedding groove. The elastic pressing piece is located in the embedding groove and the column groove and connected to the bottom end of the bolt. The embedding groove and the column groove serve as embedded cavities for the elastic pressing piece. During the downward movement of the bolt, the upper surface of the elastic pressing piece will be pressed completely into the embedding groove, so that a horizontal limit is formed between the bottom end of the bolt and the embedding groove.

[0012] Preferably, the elastic pressing piece includes a pressing plate and a silicone pad; the upper end of the pressing plate is covered with the silicone pad, the pressing plate is in the embedded groove, the lower end of the pressing plate is fixedly connected to a plunger slidably connected in the column groove, and a spring is installed between the lower end of the plunger and the bottom wall of the column groove. When the bolt moves upward, the pressure on the spring gradually decreases, and it naturally stretches to push the pressing plate up, so that the silicone pad is always in contact with the bottom end of the bolt.

[0013] Preferably, a heat dissipation groove is provided on the lower surface of the pad body, a heat dissipation hole is provided in the heat dissipation groove and extends through to the upper surface of the pad body, and a through groove connected to the heat dissipation hole is provided on the side wall of the pad body. The working heat generated at the junction of the transformer coil and the fixing plate is dissipated to the surroundings of the pad body through the heat dissipation groove, the heat dissipation hole and the through groove in sequence, thereby achieving a good auxiliary heat dissipation effect.

[0014] Beneficial effects of the utility model:

[0015] 1. By arranging an auxiliary positioning component that matches the channel steel wall plate on the cushion block body, the auxiliary positioning component can be locked on the channel steel while the cushion block body is tightened and fixed with bolts, so as to avoid the cushion block body from sliding horizontally away from the transformer, and the installation stability of the cushion block body is better;

[0016] 2. The heat dissipation holes and through grooves opened on the pad body and connected to the heat dissipation grooves can assist the part where the transformer coil contacts the pad body to dissipate heat efficiently. Compared with the existing heat dissipation structure, the heat dissipation direction is diversified and the heat dissipation effect is better;

[0017] 3. Through the spring-loaded pressure plate, the bolts penetrate into the embedded groove while squeezing and fixing the cushion block, and form a horizontal limit with the inner wall of the embedded groove and the cushion block body to further prevent the cushion block body from slipping and dislocating. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The first three-dimensional structural diagram of the installation structure of the transformer pad of the utility model is shown;

[0019] Figure 2 The second three-dimensional structure schematic diagram of the installation structure of the transformer pad of the utility model is shown;

[0020] Figure 3 The third stereoscopic structural diagram of the installation structure of the transformer pad of the utility model is shown;

[0021] Figure 4 The first three-dimensional structure schematic diagram of the installation structure of the transformer pad body of the utility model is shown;

[0022] Figure 5 The second three-dimensional structure schematic diagram of the installation structure of the transformer pad body of the utility model is shown;

[0023] Figure 6 Shown is a three-dimensional structural schematic diagram of the auxiliary positioning component of the installation structure of the transformer pad of the utility model.

[0024] Explanation of the reference numerals in the accompanying drawings: 1. pad block body; 2. fixing plate; 3. slide groove; 5. limiting groove; 6. embedding groove; 7. column groove; 9. heat dissipation groove; 10. heat dissipation hole; 11. through groove; 401. slider; 402. block; 403. back plate; 404. lower pad; 405. upper pad; 406. through hole; 801. pressure plate; 802. silicone pad. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-3 The utility model provides an embodiment: it includes a pad body 1, a fixing plate 2 integrally connected to the lower end of the pad body 1 and adapted to the curvature of the transformer coil, a slide groove 3, an auxiliary positioning component, and an elastic pressing piece; the pad body 1 is arranged between the channel steel and the transformer coil, the fixing plate 2 is close to the outer edge of the transformer coil, a slide groove 3 with an open upper end is opened on one side of the pad body 1, one end of the auxiliary positioning component is arranged in the slide groove 3 and slides up and down along the slide groove 3, the other end of the auxiliary positioning component is clamped on the wall plate of the channel steel, a longitudinal elastic pressing piece is arranged on the upper end of the pad body 1, the bolt is passed through between the channel steel wall plate and the auxiliary positioning component and moves down to press against the elastic pressing piece to press the pad body 1.

[0027] See also Figure 4 , 6In this embodiment, the auxiliary positioning component includes a slider 401 and a block 402; a limiting groove 5 is provided on the side wall of the slide groove 3, and a block 402 is integrally fixedly connected to one side of the slider 401. The slider 401 moves up and down in the slide groove 3 and the block 402 is embedded in the limiting groove 5. An end limit is formed between the limiting groove 5 and the block 402 to prevent the slider 401 from slipping out of the slide groove 3. When the bolt is screwed downward, the pad body 1 is pushed downward, and the relative slider 401 rises. The auxiliary positioning component also includes a back plate 403, a lower pad 404, an upper pad 405, and a through hole 406; a rotating shaft is provided at the upper end of the slider 401, and a shaft sleeve is provided at the lower end of the back plate 403. A lower pad 404 and an upper pad 4 are integrally connected to one side of the back plate 403 from bottom to top. 05. The lower pad 404 and the upper pad 405 are provided with longitudinal through holes 406. The back plate 403, the lower pad 404 and the upper pad 405 constitute a U-shaped trough structure, which is horizontally buckled on the wall plate of the channel steel to prevent longitudinal separation between the pad body 1 and the channel steel. The channel steel wall plate is provided with holes. The lower pad 404 and the upper pad 405 are respectively covered on the lower and upper sides of the channel steel wall plate and the through holes 406 are connected with the holes on the channel steel. The bolts are inserted into the through holes 406 and are threadedly connected with nuts on the lower side of the lower pad 404. After the bolts are inserted into the through holes 406 and the holes on the channel steel, the nut is first screwed in from the lower end of the bolt, and then the bolt is continuously moved downward to rest against the elastic pressing piece. Finally, after the pad body 1 is completely compressed, the nut is rotated upward to lock the bolt.

[0028] See also Figure 4 In this embodiment, an embedding groove 6 is provided at the upper end of the pad block body 1, and a column groove 7 extending downward is provided at the bottom of the embedding groove 6. The elastic pressing piece is located in the embedding groove 6 and the column groove 7 and connected to the bottom end of the bolt. The embedding groove 6 and the column groove 7 serve as an embedded cavity for the elastic pressing piece. During the downward movement of the bolt, the upper surface of the elastic pressing piece will be pressed to fully penetrate into the embedding groove 6, so that a horizontal limit is formed between the bottom end of the bolt and the embedding groove 6. The elastic pressing piece includes a pressing plate 801 and a silicone pad 802; the upper end of the pressing plate 801 is covered with a silicone pad 802, the pressing plate 801 is in the embedding groove 6, and the lower end of the pressing plate 801 is fixedly connected to a plunger slidably connected to the column groove 7, and a spring is installed between the lower end of the plunger and the bottom wall of the column groove 7. When the bolt moves upward, the pressure on the spring gradually decreases, and the natural extension pushes the pressing plate 801 up, so that the silicone pad 802 is always in contact with the bottom end of the bolt.

[0029] See also Figure 5 In this embodiment, a heat dissipation groove 9 is provided on the lower surface of the pad body 1, and a heat dissipation hole 10 extending through the upper surface of the pad body 1 is provided in the heat dissipation groove 9. A through groove 11 connected with the heat dissipation hole 10 is provided on the side wall of the pad body 1. The working heat generated at the connection between the transformer coil and the fixing plate 2 is dissipated to the surroundings of the pad body 1 through the heat dissipation groove 9, the heat dissipation hole 10 and the through groove 11 in turn, and the auxiliary heat dissipation effect is good.

[0030] When working, the user first fixes the position of the channel steel, and then inserts the pad body 1 between the transformer coil and the channel steel, so that the wall plate of the channel steel is inserted between the lower pad 404 and the upper pad 405, so that the holes on the channel steel correspond to the through holes 406;

[0031] Insert the bolt into the through hole 406 and the hole on the channel steel, first screw in the nut from the lower end of the bolt, then continue to move the bolt downward to rest against the silicone pad 802, continue to press the bolt downward, the pressure plate 801 penetrates into the groove 6 and rests on the bottom wall of the groove 6, the extrusion force is transmitted to the pad body 1 to tighten it, and then the nut is rotated upward to lock the bolt.

[0032] Through the above steps, an auxiliary positioning component adapted to the channel steel wall plate is arranged on the pad body 1. While the pad body 1 is tightened and fixed with bolts, the auxiliary positioning component can be locked on the channel steel to avoid the pad body 1 from horizontally sliding away from the transformer. The installation stability of the pad body 1 is better, so as to solve the problem that the existing transformer pad is completely fixed by bolts and is prone to horizontal displacement and slippage.

[0033] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A transformer pad installation structure, comprising a pad body (1), and a fixing plate (2) integrally connected to the lower end of the pad body (1) and adapted to the curvature of the transformer coil; characterized in that: It also includes a slide groove (3), an auxiliary positioning component, and an elastic pressing piece; the pad body (1) is arranged between the channel steel and the transformer coil, the fixing plate (2) is close to the outer edge of the transformer coil, a slide groove (3) with an open upper end is provided on one side of the pad body (1), one end of the auxiliary positioning component is arranged in the slide groove (3) and slides up and down along the slide groove (3), the other end of the auxiliary positioning component is clamped on the wall plate of the channel steel, and a longitudinal elastic pressing piece is provided on the upper end of the pad body (1), and a bolt is inserted between the channel steel wall plate and the auxiliary positioning component and moves downward to abut against the elastic pressing piece to press the pad body (1).

2. The installation structure of a transformer spacer according to claim 1, characterized in that: The auxiliary positioning component comprises a slider (401) and a clamping block (402); a limiting groove (5) is provided on the side wall of the slide groove (3); a clamping block (402) is integrally fixedly connected to one side of the slider (401); the slider (401) moves up and down in the slide groove (3) and the clamping block (402) is embedded in the limiting groove (5).

3. The installation structure of a transformer spacer according to claim 2, characterized in that: The auxiliary positioning assembly also includes a back plate (403), a lower pad (404), an upper pad (405), and a through hole (406); a rotating shaft is arranged at the upper end of the slider (401), and a shaft sleeve is arranged at the lower end of the back plate (403) and sleeved on the rotating shaft. A lower pad (404) and an upper pad (405) are integrally connected from bottom to top on one side of the back plate (403), and longitudinally penetrating through holes (406) are provided on the lower pad (404) and the upper pad (405).

4. The installation structure of a transformer spacer according to claim 3, characterized in that: Holes are provided on the channel steel wall plate, the lower pad (404) and the upper pad (405) are respectively covered on the lower side and the upper side of the channel steel wall plate, and the through hole (406) is connected with the hole on the channel steel, and the bolt is inserted into the through hole (406) and is threadedly connected with a nut located on the lower side of the lower pad (404).

5. The installation structure of a transformer spacer according to claim 1, characterized in that: The upper end of the pad body (1) is provided with an embedding groove (6), the bottom of the embedding groove (6) is provided with a column groove (7) extending downwards, and the elastic pressing piece is located in the embedding groove (6) and the column groove (7) and connected to the bottom end of the bolt.

6. The installation structure of a transformer spacer according to claim 5, characterized in that: The elastic pressing piece comprises a pressing plate (801) and a silicone pad (802); the upper end of the pressing plate (801) is covered with the silicone pad (802), the pressing plate (801) is in the embedded groove (6), the lower end of the pressing plate (801) is fixedly connected to a plunger slidably connected in the column groove (7), and a spring is installed between the lower end of the plunger and the bottom wall of the column groove (7).

7. The installation structure of a transformer spacer according to claim 1, characterized in that: A heat dissipation groove (9) is provided on the lower surface of the pad body (1), a heat dissipation hole (10) extending through the upper surface of the pad body (1) is provided in the heat dissipation groove (9), and a through groove (11) communicating with the heat dissipation hole (10) is provided on the side wall of the pad body (1).

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