CN216719698U - Dry-type transformer coil heat radiation structure - Google Patents
Dry-type transformer coil heat radiation structure Download PDFInfo
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- CN216719698U CN216719698U CN202220139857.1U CN202220139857U CN216719698U CN 216719698 U CN216719698 U CN 216719698U CN 202220139857 U CN202220139857 U CN 202220139857U CN 216719698 U CN216719698 U CN 216719698U
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Abstract
The utility model discloses a coil heat dissipation structure of a dry type transformer, which comprises a coil insulation layer coated on the outer side of a coil, wherein a heat conduction glue layer is coated on the outer side of the coil insulation layer, an outer sleeve is sleeved on the outer side of the heat conduction glue layer, volatile liquid is filled in an elastic air bag, when the heat conduction glue layer absorbs a large amount of heat, the liquid in the elastic air bag is heated and volatilized into a gas state, so that the air pressure in the elastic air bag is increased, the internal air is expanded and is led into the inner side of an air cylinder through an air guide hole, the air pressure in the air cylinder is increased to push a piston, a pressure plate at one end of a push rod pushes a transverse plate, the transverse plate presses movable plates at two sides, an arc-shaped sealing plate overcomes the elasticity of a spring and further contracts in a telescopic chute, the open area on the outer sleeve is increased, partial heat can be directly discharged through an open port, and the circulation path of cold air flow is shortened, the heat dissipation amount is increased, the heat dissipation area is increased, and the heat dissipation efficiency is further improved.
Description
Technical Field
The utility model belongs to the technical field related to coil heat dissipation, and particularly relates to a coil heat dissipation structure of a dry type transformer.
Background
A transformer is a device that changes an alternating voltage using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformation), and the like. At present, the dry-type transformer is widely used, and when the conventional dry-type transformer works under a high load for a long time, the coil generates a large amount of heat and the transformer is easily damaged if the heat is not dissipated in time.
Application No. CN201821808529.6 proposes a transformer coil, comprising a voltage line; the voltage wire comprises a wire layer, and an insulating protective layer, a heat dissipation layer and an external leather sheath layer which are sequentially wrapped on the battery layer; a plurality of isolated heat dissipation cavities are formed between the heat dissipation layer and the outer leather sleeve layer; the outer leather sheath layer is provided with a through hole communicated with the heat dissipation layer. The heat dissipation layer includes a regulation sublayer and a support sublayer. The heat generated by the transformer coil is diffused to the adjusting sublayer through the heat dissipation channel in the supporting sublayer, the protruding section of the adjusting sublayer increases the heat diffusion area, and the heat is diffused to the heat dissipation cavity, passes through the heat dissipation particles and is finally dissipated through the through hole.
The prior dry-type transformer coil heat dissipation structure technology has the following problems: the contact area of the heat conducting layer of the existing dry type transformer coil heat dissipation structure and cold air is small, so that the heat dissipation effect is poor, and in addition, when the heat is accumulated more, the circulation path of cold air flow is long, the heat dissipation amount of the existing dry type transformer coil heat dissipation structure is low, the heat dissipation area is limited, and the heat dissipation efficiency of the coil is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a coil heat dissipation structure of a dry-type transformer, which aims to solve the problems that the contact area of a heat conduction layer and cold air is small and the flow path of cold air flow is long in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a dry-type transformer coil heat radiation structure, includes the coil insulation layer of cladding in the coil outside, the outside cladding of coil insulation layer has the heat-conducting glue layer, the outside cover of heat-conducting glue layer is equipped with the outer sleeve, the bottom fixed mounting of outer sleeve has the cold wind frame, the top fixedly connected with top closing cap of outer sleeve, three uncovered, three has been seted up on the outer sleeve uncovered department, and is three uncovered department all is provided with and is used for the open wind gap adjustment mechanism of switching, radial distribution has the pneumatic mechanism who is used for opening uncovered increase heat radiating area gradually when the thermal expansion on the heat-conducting glue layer.
Preferably, wind gap adjustment mechanism includes the diaphragm, the both ends of diaphragm articulate there are two fly leafs, two the one end of fly leaf all articulates there is the arc to seal the board, flexible spout has been seted up to open both sides, the arc seals board and flexible spout sliding connection.
Preferably, the inner wall of the telescopic chute is fixedly connected with a spring, and one end of the spring is fixedly connected with the arc-shaped sealing plate.
Preferably, pneumatic mechanism includes the elasticity gasbag, the elasticity gasbag is fixed to be inlayed and is established in the heat-conducting adhesive layer, the inboard of elasticity gasbag has run through the inflator, the one end and the coil insulation layer fixed connection of inflator, the inboard sliding connection of inflator has the piston, fixedly connected with push rod on the side of piston, the one end fixedly connected with pressure disk of push rod, the pressure disk supports on the diaphragm.
Preferably, the outer wall of the inflator at the inner side of the elastic air bag is provided with an air vent, and the air vent enables the elastic air bag to be communicated with the inner side of the inflator.
Preferably, the elastic air bag is filled with volatile liquid.
Preferably, a plurality of heat conduction plates distributed in the radial direction are fixedly connected between the heat conduction glue layer and the outer sleeve.
Compared with the prior art of the coil heat dissipation structure of the dry type transformer, the utility model provides the coil heat dissipation structure of the dry type transformer, which has the following beneficial effects:
1. according to the utility model, the outer sleeve is sleeved outside the heat-conducting adhesive layer, so that the heat-radiating air duct is formed between the heat-conducting adhesive layer and the outer sleeve, high-temperature heat generated during the operation of the dry-type transformer coil is absorbed by the heat-conducting adhesive layer, part of heat of the heat-conducting adhesive layer is transferred to the heat-conducting plate, the heat is radiated into the heat-radiating air duct by the heat-conducting adhesive layer and the heat-conducting plate, cold air with lower temperature generated by an air cooler in the air cooler base is conveyed to the heat-radiating air duct, and the heat of the heat-radiating air duct is directly discharged from the top sealing cover;
2. according to the utility model, the volatile liquid is filled in the elastic air bag, when the heat-conducting adhesive layer absorbs a large amount of heat, the liquid in the elastic air bag is heated and volatilized into a gaseous state, so that the internal air pressure of the elastic air bag is increased, further expansion is generated, the internal air is guided into the inner side of the air cylinder through the air guide hole, the internal air pressure of the air cylinder is increased to push the piston, the pressing plate at one end of the pushing rod pushes the transverse plate, the transverse plate presses the movable plates at two sides, the arc-shaped sealing plate overcomes the elasticity of the spring and further contracts in the telescopic chute, the area of an opening on the outer sleeve is increased, partial heat can be directly discharged from the opening, the circulation path of cold air flow is shortened, the heat discharge amount is increased, the heat radiation area is increased, and the heat radiation efficiency is further improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model without limiting the utility model in which:
fig. 1 is a schematic diagram of a coil heat dissipation structure of a dry type transformer according to the present invention;
FIG. 2 is a cross-sectional view of the outer sleeve according to the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;
fig. 4 is a schematic cross-sectional structure diagram of a pneumatic mechanism according to the present invention.
In the figure: 1. an outer sleeve; 11. a telescopic chute; 2. a top cover; 3. an air cooler base; 4. a tuyere adjusting mechanism; 41. a transverse plate; 42. a movable plate; 43. an arc-shaped sealing plate; 44. a spring; 5. a pneumatic mechanism; 51. an elastic air bag; 52. an air cylinder; 53. a piston; 54. a push rod; 55. a platen; 56. an air vent; 6. a heat-conducting adhesive layer; 7. a coil insulating layer; 8. a heat conducting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a dry-type transformer coil heat radiation structure, including the coil insulation layer 7 of cladding in the coil outside, play shielding and electrical insulation's effect, the outside cladding of coil insulation layer 7 has heat-conducting glue layer 6, the outside cover of heat-conducting glue layer 6 is equipped with outer sleeve 1, form the heat dissipation wind channel between heat-conducting glue layer 6 and the outer sleeve 1, a plurality of radial distribution's of fixedly connected with heat-conducting plate 8 between heat-conducting glue layer 6 and the outer sleeve 1, absorb the high temperature heat that dry-type transformer coil produced at the during operation through heat-conducting glue layer 6, the partial heat transmission to heat-conducting plate 8 of heat-conducting glue layer 6, give off the heat to the heat dissipation wind channel in by heat-conducting plate 8, and then improve the radiating efficiency.
It should be noted that, an air cooler base 3 is fixedly installed at the bottom end of the outer sleeve 1, an air cooler is installed in the air cooler base 3, and can generate cold air with lower temperature to be conveyed to a heat dissipation air duct, a top sealing cover 2 is fixedly connected to the top end of the outer sleeve 1, a hollow ring structure is arranged outside the top sealing cover 2, and can directly discharge heat blown out by the air cooler through the top sealing cover 2, a heat dissipation net is arranged on the inner wall of the top sealing cover 2, and can reduce dust entering the heat dissipation air duct, three openings are formed on the outer sleeve 1, an air port adjusting mechanism 4 for opening and closing the openings is arranged at each of the three openings, the air port adjusting mechanism 4 comprises a transverse plate 41, two movable plates 42 are hinged to two ends of the transverse plate 41, an arc-shaped sealing plate 43 is hinged to one end of each movable plate 42, telescopic chutes 11 are formed on two sides of the openings, the arc-shaped sealing plate 43 is slidably connected with the telescopic chutes 11, and a spring 44 is fixedly connected to the inner wall of the telescopic chutes 11, one end of the spring 44 is fixedly connected with the arc-shaped sealing plate 43, and as shown in fig. 1, the opening on the outer sleeve 1 is sealed by the arc-shaped sealing plate 43 on the tuyere adjusting mechanism 4, so that heat is exhausted from the top cover 2.
It is worth proposing that the pneumatic mechanism 5 for gradually opening the opening to increase the heat dissipation area when being heated and expanded is radially distributed on the heat conducting adhesive layer 6, the pneumatic mechanism 5 comprises an elastic air bag 51, the elastic air bag 51 is fixedly embedded in the heat conducting adhesive layer 6, an air cylinder 52 penetrates through the inner side of the elastic air bag 51, one end of the air cylinder 52 is fixedly connected with the coil insulation layer 7, the inner side of the air cylinder 52 is slidably connected with a piston 53, the side surface of the piston 53 is fixedly connected with a push rod 54, one end of the push rod 54 is fixedly connected with a pressure plate 55, the pressure plate 55 is propped against the transverse plate 41, the outer wall of the air cylinder 52 at the inner side of the elastic air bag 51 is provided with an air guide hole 56, the air guide hole 56 enables the elastic air bag 51 to be communicated with the inner side of the air cylinder 52, the elastic air bag 51 is filled with volatile liquid, when the heat conducting adhesive layer 6 absorbs a large amount of heat, the liquid in the elastic air bag 51 is heated and volatilized into a gaseous state, so that the air pressure in the elastic air bag 51 is increased, the gas is introduced into the cylinder 52 through the gas hole 56, so that the gas pressure in the cylinder 52 increases to push the piston 53, and the pressure plate 55 at one end of the push rod 54 pushes the horizontal plate 41.
The working principle and the using process of the utility model are as follows: a heat dissipation air duct is formed between the heat conduction adhesive layer 6 and the outer sleeve 1, and high-temperature heat generated by the dry-type transformer coil during working is absorbed by the heat conduction adhesive layer 6, so that part of heat of the heat conduction adhesive layer 6 is transferred to the heat conduction plate 8, and the heat is dissipated into the heat dissipation air duct by the heat conduction adhesive layer 6 and the heat conduction plate 8;
when the heat absorbed by the heat-conducting adhesive layer 6 is less, as shown in fig. 1, the opening on the outer sleeve 1 is sealed by the arc-shaped sealing plate 43 on the air port adjusting mechanism 4, and cold air with lower temperature is generated by an air cooler in the air cooler base 3 and is conveyed to the heat-radiating air duct, so that the heat of the heat-radiating air duct is directly discharged from the top sealing cover 2;
when the heat conductive adhesive layer 6 absorbs a large amount of heat, because the elastic air bag 51 is filled with volatile liquid, the liquid in the elastic air bag 51 is heated and volatilized into a gaseous state, so that the internal air pressure of the elastic air bag 51 is increased, further expansion occurs and the internal air is guided into the inner side of the air cylinder 52 through the air guide hole 56, so that the internal air pressure of the air cylinder 52 is increased and the piston 53 is pushed, the pressure plate 55 at one end of the push rod 54 pushes the transverse plate 41, the transverse plate 41 presses the movable plates 42 at two sides, the arc-shaped sealing plate 43 overcomes the elasticity of the spring 44 and then contracts in the telescopic chute 11, so that the open area on the outer sleeve 1 is increased, part of the heat can be directly discharged through the open part, the flow path of cold air flow is shortened, the heat discharge amount is increased, the heat radiation area is increased at the same time, and the heat radiation efficiency is further improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a dry-type transformer coil heat radiation structure, includes coil insulating layer (7) of cladding in the coil outside, the outside cladding of coil insulating layer (7) has heat-conducting glue layer (6), its characterized in that: the outside cover of heat conduction glue film (6) is equipped with outer sleeve (1), the bottom fixed mounting of outer sleeve (1) has air cooler frame (3), the top fixedly connected with top closing cap (2) of outer sleeve (1), three uncovered has been seted up on outer sleeve (1), and is three uncovered department all is provided with and is used for the open and close open wind gap adjustment mechanism (4), radial distribution has pneumatic mechanism (5) that are used for opening uncovered increase heat radiating area gradually when thermal expansion on heat conduction glue film (6).
2. A dry-type transformer coil heat dissipation structure as set forth in claim 1, wherein: wind gap adjustment mechanism (4) are including diaphragm (41), the both ends of diaphragm (41) are articulated to have two fly leaf (42), two the one end of fly leaf (42) all articulates there is the arc to seal board (43), flexible spout (11) have been seted up to open both sides, arc seals board (43) and flexible spout (11) sliding connection.
3. A dry-type transformer coil heat dissipation structure as set forth in claim 2, wherein: the inner wall of the telescopic chute (11) is fixedly connected with a spring (44), and one end of the spring (44) is fixedly connected with the arc-shaped sealing plate (43).
4. A dry-type transformer coil heat dissipation structure as set forth in claim 2, wherein: pneumatic mechanism (5) are including elasticity gasbag (51), elasticity gasbag (51) are fixed to inlay and are established in heat-conducting adhesive layer (6), the inboard of elasticity gasbag (51) is run through has inflator (52), the one end and the coil insulation layer (7) fixed connection of inflator (52), the inboard sliding connection of inflator (52) has piston (53), fixedly connected with push rod (54) on the side of piston (53), the one end fixedly connected with pressure disk (55) of push rod (54), pressure disk (55) are supported on diaphragm (41).
5. A dry-type transformer coil heat dissipation structure as set forth in claim 4, wherein: the outer wall of the air cylinder (52) at the inner side of the elastic air bag (51) is provided with an air vent (56), and the air vent (56) enables the elastic air bag (51) to be communicated with the inner side of the air cylinder (52).
6. A dry-type transformer coil heat dissipation structure as set forth in claim 4, wherein: the elastic air bag (51) is filled with volatile liquid.
7. A dry-type transformer coil heat dissipation structure as set forth in claim 1, wherein: a plurality of heat conducting plates (8) which are distributed in the radial direction are fixedly connected between the heat conducting glue layer (6) and the outer sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220139857.1U CN216719698U (en) | 2022-01-19 | 2022-01-19 | Dry-type transformer coil heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220139857.1U CN216719698U (en) | 2022-01-19 | 2022-01-19 | Dry-type transformer coil heat radiation structure |
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| Publication Number | Publication Date |
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| CN216719698U true CN216719698U (en) | 2022-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220139857.1U Active CN216719698U (en) | 2022-01-19 | 2022-01-19 | Dry-type transformer coil heat radiation structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115245686A (en) * | 2022-06-24 | 2022-10-28 | 安徽三禾化学科技有限公司 | Purification device for production of ethylene glycol phenyl ether |
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2022
- 2022-01-19 CN CN202220139857.1U patent/CN216719698U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115245686A (en) * | 2022-06-24 | 2022-10-28 | 安徽三禾化学科技有限公司 | Purification device for production of ethylene glycol phenyl ether |
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