CN216054179U - High-reliability epoxy resin cast dry-type transformer - Google Patents
High-reliability epoxy resin cast dry-type transformer Download PDFInfo
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- CN216054179U CN216054179U CN202122784511.5U CN202122784511U CN216054179U CN 216054179 U CN216054179 U CN 216054179U CN 202122784511 U CN202122784511 U CN 202122784511U CN 216054179 U CN216054179 U CN 216054179U
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- stroke guide
- transformer body
- heat dissipation
- epoxy resin
- lantern ring
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Abstract
The utility model discloses a high-reliability epoxy resin cast dry-type transformer, which comprises a transformer body, a clamping piece, a high-voltage terminal and a base, wherein the clamping piece is arranged on the transformer body; an epoxy resin layer, a high-voltage coil, a heat dissipation air channel, a low-voltage coil and an iron core are sequentially arranged in the transformer body; two stroke guide rods are arranged between the clamping piece and the base, and two lantern rings are sleeved on each stroke guide rod; still including the fin, the upper and lower part of fin both sides all is provided with the locating part, and the locating part is including two spacing nose bars, has all seted up two spacing holes on each lantern ring. The utility model has the following advantages and effects: the coil is poured by using the epoxy resin, and the heat generated by the coil can be effectively conducted to the outside by arranging the heat dissipation air passage, so that the heat dissipation effect is improved; then, through setting up two stroke guide arms, and two lantern rings of locating on each stroke guide arm, reach the purpose of dismantling and installing the fin.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a high-reliability epoxy resin cast dry-type transformer.
Background
With the rapid increase of economy, various electric appliances are continuously developed and applied to various occasions. The more widely the use of transformers is. A transformer is a stationary electrical appliance that uses the principle of electromagnetic induction to convert one level of voltage and current to another level of voltage and current of the same frequency and to transmit electrical energy between two or more coils.
In the prior art, a heat sink is generally disposed on the dry-type transformer to help the dry-type transformer dissipate heat. However, the heat sink is generally integrally formed with the dry-type transformer during production, and when the heat sink is damaged, the subsequent disassembly and assembly of the heat sink are very troublesome; therefore, how to conveniently disassemble and assemble the heat sink is very important.
Therefore, the existing requirements are not met, and a high-reliability epoxy resin cast dry-type transformer is provided for the requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-reliability epoxy resin cast dry-type transformer to solve the problems in the background art.
The technical purpose of the utility model is realized by the following technical scheme: a high-reliability epoxy resin cast dry-type transformer comprises a transformer body, wherein a clamping piece is arranged at the upper end of the transformer body, a high-voltage terminal connected with the transformer body is arranged on the clamping piece, and a base is arranged at the lower end of the transformer body;
an epoxy resin layer is arranged inside the transformer body, a high-voltage coil is arranged on the inner side of the epoxy resin layer, a heat dissipation air passage is arranged on the inner side of the high-voltage coil, a low-voltage coil is arranged on the inner side of the heat dissipation air passage, and an iron core is arranged on the inner side of the low-voltage coil;
two cylindrical stroke guide rods are longitudinally arranged between the clamping piece and the base, a gap is reserved between the two stroke guide rods, two lantern rings capable of sliding along the stroke guide rods are sleeved on each stroke guide rod, and a height difference is reserved between the two lantern rings on the same stroke guide rod;
the heat sink also comprises a heat sink, wherein the upper part and the lower part of two sides of the heat sink are both provided with a limiting piece, the limiting piece comprises two transverse limiting convex rods, and each lantern ring is provided with two transverse limiting holes; after the positions of the lantern rings and the positions of the limiting parts on the radiating fin are in one-to-one correspondence, the two limiting convex rods contained in the limiting parts are respectively inserted into the two limiting holes of the corresponding lantern rings so as to realize the assembly of the radiating fin and the lantern rings, then the lantern rings provided with the radiating fin are respectively sleeved into the corresponding stroke guide rods, and the radiating fin can be fixed on the surface of the transformer body in a contact manner, so that the purpose of heat radiation in contact with the transformer body is achieved.
The further setting is that: the center of the lantern ring is provided with a longitudinal inner hole which can be sleeved into the stroke guide rod, the lower end of the lantern ring is provided with extending parts which extend towards two sides, and the lantern ring is prevented from rotating circumferentially by the fact that the extending parts are abutted against the surface of the transformer body.
The further setting is that: the lantern ring is provided with a longitudinal gap, the gap is communicated with the inner hole, and the lantern ring has certain deformation capacity through the gap so as to adapt to the stroke guide rods with different radiuses through outward expansion.
The utility model has the beneficial effects that:
1. the coil is cast by the epoxy resin layer, and the heat generated by the coil can be effectively conducted to the outside by arranging the heat dissipation air channel, so that the heat dissipation effect can be improved. Then, two stroke guide rods and two lantern rings sleeved on the stroke guide rods are arranged to achieve the purpose of fixing the radiating fins; the two limiting convex rods contained in each limiting piece on the radiating fin can be respectively inserted into the two limiting holes of the corresponding lantern ring to realize the assembly of the radiating fin and each lantern ring, so that the radiating fin and each lantern ring form a whole, then each lantern ring assembled with the radiating fin is respectively sleeved into the corresponding stroke guide rod, and the radiating fin can be fixed on the surface of the transformer body in a contact manner, so that the purpose of heat dissipation in contact with the transformer body is achieved; the cooling fin has the advantages of convenient disassembly and assembly; great convenience is provided for subsequent replacement of the radiating fins.
2. According to the utility model, the extension part is arranged at the lower end of the lantern ring, and the lantern ring is prevented from rotating in the circumferential direction by the abutment of the extension part and the surface of the transformer body, so that the stability is better.
3. If the inner hole on the lantern ring or the stroke guide rod has production tolerance generated during production, the lantern ring can not be sleeved into the stroke guide rod. Therefore, in order to avoid the situation, the lantern ring is provided with the longitudinal notch, and the lantern ring has certain deformation capacity through the notch so as to adapt to the stroke guide rods with different radiuses through outward expansion.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic structural view of a collar in an embodiment;
fig. 4 is a schematic structural diagram of the interior of the transformer body in the embodiment.
In the figure: 11. a transformer body; 12. a clamp; 13. a high voltage terminal; 14. a base; 21. an epoxy resin layer; 22. a high-voltage coil; 23. a heat dissipation air passage; 24. a low-voltage coil; 25. an iron core; 3. a stroke guide rod; 4. a collar; 41. a limiting hole; 42. an inner bore; 43. an extension portion; 44. a notch; 5. a heat sink; 51. a limit convex rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, a high-reliability epoxy resin cast dry-type transformer includes a transformer body 11, a clamping member 12 is disposed at an upper end of the transformer body 11, a high-voltage terminal 13 connected to the transformer body 11 is disposed on the clamping member 12, and a base 14 is disposed at a lower end of the transformer body 11. The above structure is a conventional technology of the existing dry type transformer, belongs to the prior art field, and is not further described herein.
An epoxy resin layer 21 is arranged inside the transformer body 11, a high-voltage coil 22 is arranged on the inner side of the epoxy resin layer 21, a heat dissipation air passage 23 is arranged on the inner side of the high-voltage coil 22, a low-voltage coil 24 is arranged on the inner side of the heat dissipation air passage 23, and an iron core 25 is arranged on the inner side of the low-voltage coil 24. Utilize epoxy to pour into a mould the coil to through setting up heat dissipation air flue 23, can be effectual with the heat conduction of coil production to the external world, thereby can improve the radiating effect.
Two cylindrical stroke guide rods 3 are longitudinally arranged between the clamp 12 and the base 14, an interval is arranged between the two stroke guide rods 3, two lantern rings 4 capable of sliding along the stroke guide rods are sleeved on each stroke guide rod 3, and a height difference is required to be formed between the two lantern rings 4 on the same stroke guide rod 3;
the heat dissipation device further comprises a heat dissipation sheet 5, the upper part and the lower part of each of two sides of the heat dissipation sheet 5 are respectively provided with a limiting piece, each limiting piece comprises two transverse limiting convex rods 51, and each lantern ring 4 is provided with two transverse limiting holes 41; after the positions of the limiting parts on the lantern rings 4 and the radiating fins 5 are in one-to-one correspondence, the two limiting convex rods 51 contained in the limiting parts are respectively inserted into the two limiting holes 41 of the corresponding lantern rings 4 to realize the assembly of the radiating fins 5 and the lantern rings 4, then the lantern rings 4 provided with the radiating fins 5 are respectively sleeved into the corresponding stroke guide rods 3, and the radiating fins 5 can be fixed on the surface of the transformer body 11 in a contact manner, so that the purpose of heat dissipation in contact with the transformer body 11 is achieved.
The center of the lantern ring 4 is provided with a longitudinal inner hole 42 which can be sleeved into the stroke guide rod 3, the lower end of the lantern ring 4 is provided with an extension part 43 extending towards two sides, and the lantern ring 4 is prevented from rotating circumferentially by the abutment of the extension part 43 and the surface of the transformer body 11.
Wherein, the lantern ring 4 is provided with a longitudinal gap 44, the gap 44 is communicated with the inner hole 42, the lantern ring 4 has certain deformation capacity through the gap 44, so as to adapt to the stroke guide rods 3 with different radiuses through outward expansion.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (3)
1. A high-reliability epoxy resin cast dry-type transformer comprises a transformer body (11), wherein a clamping piece (12) is arranged at the upper end of the transformer body (11), a high-voltage terminal (13) connected with the transformer body (11) is arranged on the clamping piece (12), and a base (14) is arranged at the lower end of the transformer body (11); the method is characterized in that:
an epoxy resin layer (21) is arranged in the transformer body (11), a high-voltage coil (22) is arranged on the inner side of the epoxy resin layer (21), a heat dissipation air channel (23) is arranged on the inner side of the high-voltage coil (22), a low-voltage coil (24) is arranged on the inner side of the heat dissipation air channel (23), and an iron core (25) is arranged on the inner side of the low-voltage coil (24);
two cylindrical stroke guide rods (3) are longitudinally arranged between the clamping piece (12) and the base (14), an interval is reserved between the two stroke guide rods (3), two lantern rings (4) capable of sliding along the stroke guide rods are sleeved on each stroke guide rod (3), and the height difference is required to be reserved between the two lantern rings (4) on the same stroke guide rod (3);
the heat dissipation device is characterized by further comprising a heat dissipation sheet (5), wherein limiting pieces are arranged on the upper portion and the lower portion of two sides of the heat dissipation sheet (5), each limiting piece comprises two transverse limiting convex rods (51), and each lantern ring (4) is provided with two transverse limiting holes (41); after the positions of the limiting parts on the lantern rings (4) and the radiating fins (5) are in one-to-one correspondence, two limiting convex rods (51) contained by the limiting parts are respectively inserted into two limiting holes (41) of the corresponding lantern rings (4) to realize the assembly of the radiating fins (5) and the lantern rings (4), then the lantern rings (4) provided with the radiating fins (5) are respectively sleeved into the corresponding stroke guide rods (3), so that the radiating fins (5) can be fixed on the surface of the transformer body (11) in a contact manner, and the purpose of heat dissipation in contact with the transformer body (11) is achieved.
2. The epoxy-cast dry-type transformer of claim 1, wherein: the center of the lantern ring (4) is provided with a longitudinal inner hole (42) which can be sleeved into the stroke guide rod (3), the lower end of the lantern ring (4) is provided with an extension part (43) extending towards two sides, and the lantern ring (4) is prevented from rotating in the circumferential direction by the support of the extension part (43) and the surface of the transformer body (11).
3. The epoxy-cast dry-type transformer of claim 2, wherein: the lantern ring (4) is provided with a longitudinal notch (44), the notch (44) is communicated with the inner hole (42), and the lantern ring (4) has certain deformation capacity through the notch (44) so as to adapt to the stroke guide rods (3) with different radiuses through outward expansion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122784511.5U CN216054179U (en) | 2021-11-12 | 2021-11-12 | High-reliability epoxy resin cast dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122784511.5U CN216054179U (en) | 2021-11-12 | 2021-11-12 | High-reliability epoxy resin cast dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216054179U true CN216054179U (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122784511.5U Active CN216054179U (en) | 2021-11-12 | 2021-11-12 | High-reliability epoxy resin cast dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216054179U (en) |
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2021
- 2021-11-12 CN CN202122784511.5U patent/CN216054179U/en active Active
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