CN110211773B - Power device based on phase-change heat dissipation system - Google Patents
Power device based on phase-change heat dissipation system Download PDFInfo
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- CN110211773B CN110211773B CN201910620038.1A CN201910620038A CN110211773B CN 110211773 B CN110211773 B CN 110211773B CN 201910620038 A CN201910620038 A CN 201910620038A CN 110211773 B CN110211773 B CN 110211773B
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 48
- 238000001816 cooling Methods 0.000 claims abstract description 135
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910052742 iron Inorganic materials 0.000 claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 238000003825 pressing Methods 0.000 claims description 3
- 239000008358 core component Substances 0.000 abstract 2
- 230000004308 accommodation Effects 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- 238000005452 bending Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/16—Water cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/18—Liquid cooling by evaporating liquids
Abstract
The invention relates to a power device (the power device is a reactor or a transformer) based on a phase-change heat dissipation system, which comprises an iron core component, wherein the iron core component comprises an upper iron yoke, a core column and a lower iron yoke which are sequentially arranged from top to bottom; the heat conduction heat pipe comprises a first heat pipe and a second heat pipe, the first heat pipe comprises a first heat absorption end and a first cooling end, the first cooling end is bent and extended, the second heat pipe comprises a second heat absorption end and a second cooling end, the second cooling end is bent and extended, and the first heat absorption end and the second heat absorption end are opposite and are arranged at intervals; the coil is sleeved on the core column and positioned between the upper iron yoke and the lower iron yoke, and the coil is respectively contacted with the first heat absorbing end and the second heat absorbing end; the cover plate is arranged on the second cooling end; the first cooling end and the second cooling end are respectively provided with a containing space, the water-cooling radiating plate is detachably arranged in the containing space, and the water-cooling radiating plate is respectively contacted with the first cooling end and the second cooling end. The power device is a reactor or a transformer.
Description
Technical Field
The invention relates to the technical field of heat dissipation of electric devices, in particular to an electric device based on a phase-change heat dissipation system.
Background
The reactor is also called an inductor, and when one conductor is electrified, a magnetic field is generated in a certain space occupied by the conductor, so that all the conductors capable of carrying current have a common sense of inductance. However, the inductance of the electrified long straight conductor is smaller, and the generated magnetic field is not strong, so that the actual reactor is in a form of a solenoid formed by winding a wire, namely an air core reactor; sometimes, in order to make the solenoid have a larger inductance, a core, called a core reactor, is inserted into the solenoid. Reactance is classified into inductive reactance and capacitive reactance, and a comparatively scientific classification is that an inductive reactor (inductor) and a capacitive reactor (capacitor) are collectively called a reactor, however, since an inductor has been previously known in the past and is called a reactor, a capacitor is now called a capacitive reactor, and a reactor is referred to as an inductor exclusively.
When the reactor is applied to the wind power field, the reliability of the reactor is particularly important, because once the reactor fails, the reactor in the wind driven generator needs to be detached by a helicopter for maintenance, so that the maintenance cost is very high. In the prior art, due to the defect of the structural design of the water-cooling heat dissipation plate, the following problems are easily caused: 1. the disassembly and assembly are difficult, when the water-cooling heat dissipation plate is damaged, the whole reactor is required to be disassembled for maintenance, so that the maintenance cost is high; 2. water leakage is easy to occur; 3. once the water cooling plate leaks water, the coil in the reactor is short-circuited in a short time, so that the reactor is damaged due to incapability of timely rush repair.
Disclosure of Invention
The invention mainly aims to provide a power device based on a phase-change heat dissipation system, and aims to solve the technical problems that a water-cooling heat dissipation plate is difficult to disassemble and assemble, water is easy to leak and the power device is easy to damage in a short time due to water leakage in the prior art.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
an electrical device based on a phase change heat dissipation system, comprising: the iron core assembly comprises an upper iron yoke, a core column and a lower iron yoke which are sequentially arranged from top to bottom; the heat pipe comprises a first heat pipe and a second heat pipe, wherein the first heat pipe comprises a first heat absorption end and a first cooling end, the first cooling end is bent and extended, the second heat pipe comprises a second heat absorption end and a second cooling end, the second cooling end is bent and extended, and the first heat absorption end and the second heat absorption end are opposite and are arranged at intervals; the coil is sleeved on the core column and positioned between the upper iron yoke and the lower iron yoke, and the coil is respectively contacted with the first cooling end and the second cooling end; the cover plate is arranged on the second cooling end and is used for pressing the second cooling end; and the water cooling plate is detachably arranged in the accommodating space and is respectively contacted with the first cooling end and the second cooling end.
The cover plate is provided with a locking piece, and the cover plate, the second cooling end, the water cooling heat dissipation plate and the first cooling end are mutually abutted by tightening the locking piece.
Wherein, the water cooling plate is provided with a temperature equalizing heat pipe.
The electric power device further comprises a first protection block, a first groove is formed in the first protection block, the first cooling end is arranged in the first groove, the first protection block is located between the first cooling end and the cover plate, and the first protection block is in contact with the water-cooling heat dissipation plate; and/or, the electric power device further comprises a second protection block, a second groove is formed in the second protection block, the second cooling end is arranged in the second groove, the second protection block is located between the second cooling end and the cover plate, and the second protection block is in contact with the water-cooling heat dissipation plate.
Wherein the first groove and the first cooling end are in interference fit, and/or the second groove and the second cooling end are in interference fit.
The coil comprises a first coil and a second coil, the first coil is sleeved on the core column, the second coil is sleeved on the first coil, the first heat absorbing end is located between the core column and the first coil and is in contact with the first coil, and the second heat absorbing end is located between the first coil and the second coil and is in contact with the second coil.
The electric power device further comprises a third protection block and a first heat-equalizing heat pipe, a third groove is formed in the third protection block, the first heat-equalizing heat pipe is arranged in the third groove, the third protection block is located between the core column and the first coil and is arranged adjacent to the first heat pipe, one end of the first heat-equalizing heat pipe is in contact with the first coil, and the other end of the first heat-equalizing heat pipe is in contact with the first heat-absorbing end; and/or, the electric power device further comprises a fourth protection block and a second temperature-equalizing heat pipe, a fourth groove is formed in the fourth protection block, the second temperature-equalizing heat pipe is arranged in the fourth groove, the fourth protection block is located between the first coil and the second coil and is arranged adjacent to the second heat pipe, one end of the second temperature-equalizing heat pipe is in contact with the second coil, and the other end of the second temperature-equalizing heat pipe is in contact with the second heat absorbing end.
Wherein, the third groove is in interference fit with the first uniform temperature heat pipe, and/or the fourth groove is in interference fit with the second uniform temperature heat pipe.
Wherein the power device is a reactor or a transformer.
The beneficial effects of the invention are as follows:
1. through the accommodation space that first cooling end and second cooling end formed jointly for the water-cooling heating panel detachable installs in accommodation space, when the water-cooling heating panel damaged, only need take out the water-cooling heating panel of damage in the accommodation space, install new water-cooling heating panel in accommodation space again can, whole dismouting process is simple, convenient, thereby realizes quick assembly disassembly.
2. Because the water-cooling heat dissipation plate is arranged in an independent space, the probability that the water-cooling heat dissipation plate is influenced by surrounding components is greatly reduced, thereby reducing the probability of water leakage and improving the reliability of the electric power device.
3. The water-cooling heat dissipation plate is arranged in a region far away from the coil, and even if the water-cooling heat dissipation plate leaks, water flow cannot flow through the coil in a short time, so that the success rate of rush repair is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention and that other drawings may be obtained from them without inventive effort for a person skilled in the art.
Fig. 1 is an exploded view of an electric device based on a phase-change heat dissipation system according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of an electrical device based on a phase-change heat dissipation system according to one embodiment of the invention.
10. An electric power device; 1. an iron core assembly; 11. an upper yoke; 12. a stem; 13. a lower yoke; 2. a heat pipe; 21. a first heat pipe; 211. a first heat absorbing end; 212. a first cooling end; 22. a second heat pipe; 221. a second heat absorbing end; 222. a second cooling end; 3. a coil; 31. a first coil; 32. a second coil; 4. a water-cooling heat dissipation plate; 5. a cover plate; 51. a locking member; 61. a temperature equalizing heat pipe; 62. a first uniform temperature heat pipe; 63. a second uniform temperature heat pipe; 71. a first guard block; 72. a second guard block; 73. a third guard block; 74. a fourth guard block; 8. a clamping plate; 81. a first clamping plate; 82. and a second clamping plate.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, the technical solutions in the embodiments of the present invention will be clearly described in conjunction with the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is an exploded view of an electric device based on a phase-change heat dissipation system according to an embodiment of the present invention. Fig. 2 is a schematic perspective view of an electrical device based on a phase-change heat dissipation system according to one embodiment of the invention.
As can be seen from the figure, the electric power device 10 based on the phase-change heat dissipation system may have a core assembly 1, a heat pipe 2, a coil 3, a water-cooling heat dissipation plate 4, and a cover plate 5, wherein the core assembly 1 includes an upper yoke 11, a core column 12, and a lower yoke 13 sequentially arranged from top to bottom; the heat pipe 2 comprises a first heat pipe 21 and a second heat pipe 22, wherein the first heat pipe 21 comprises a first heat absorbing end 211 and a first cooling end 212, the first cooling end 212 is bent and extended, the second heat pipe 22 comprises a second heat absorbing end 221 and a second cooling end 222, the second cooling end 222 is bent and extended, and the first heat absorbing end 211 and the second heat absorbing end 221 are opposite and are arranged at intervals; the coil 3 is sleeved on the core column 12 and is positioned between the upper iron yoke 11 and the lower iron yoke 13, and the coil 3 is respectively contacted with the first heat absorbing end 211 and the second heat absorbing end 221; the cover plate 5 is arranged on the second cooling end 222, and the cover plate 5 is used for pressing the second cooling end 222; the first cooling end 212 and the second cooling end 222 are spaced apart to form an accommodating space (not shown), the water cooling plate 4 is detachably mounted in the accommodating space, and the water cooling plate 4 is respectively contacted with the first cooling end 212 and the second cooling end 222.
In this embodiment, through the accommodation space that first cooling end 212 and second cooling end 222 jointly form for water-cooling heating panel 4 detachable installs in accommodation space, when water-cooling heating panel 4 damages, only need take out the water-cooling heating panel 4 that damages in the accommodation space, again with new water-cooling heating panel 4 install in accommodation space can, whole dismouting process is simple, convenient, thereby realizes quick assembly disassembly. Because the water cooling plate 4 is arranged in an independent space, the probability that the water cooling plate 4 is influenced by surrounding components is greatly reduced, thereby reducing the probability of water leakage and improving the reliability of the electric device 10. The water-cooling heat dissipation plate 4 is arranged in a region far away from the coil 3, and even if the water-cooling heat dissipation plate 4 leaks water, water flow cannot flow through the coil 3 in a short time, so that the success rate of rush repair is improved.
In this embodiment, an assembling manner of two first heat pipes 21 and two second heat pipes 22 is adopted, at this time, the two first heat pipes 21 are respectively located at two sides of the stem 12, the two second heat pipes 22 are respectively located at two sides of the stem 12, the two first heat pipes 21 are disposed in one-to-one correspondence with the two second heat pipes 22, one first heat pipe 21 and a corresponding one of the second heat pipes 22 are located at the same side of the stem 12, the bending extension direction of the first cooling end 212 is the same as the bending extension direction of the second cooling end 222, the first cooling ends 212 of the two first heat pipes 21 are bent and extended oppositely and located at the same level, the second cooling ends 222 of the two second heat pipes 22 are bent and extended oppositely and located at the same level, and the first cooling ends 212 are lower than the second cooling ends 222. It will be appreciated that in alternative embodiments, the first heat pipe 21 and the second heat pipe 22 may be assembled in a variety of ways. One of them is an assembly method using only one first heat pipe 21 and one second heat pipe 22, and the first heat pipe 21 and the second heat pipe 22 are located on the same side of the stem 12, where the bending extension direction of the first cooling end 212 is the same as the bending extension direction of the second cooling end 222, and the first cooling end 212 is lower than the second cooling end 222. In other embodiments, a first heat pipe 21 and a second heat pipe 22 are assembled, and the first heat pipe 21 and the second heat pipe 22 are located on opposite sides of the stem 12, where the bending extension direction of the first cooling end 212 is opposite to the bending extension direction of the second cooling end 222, and the first cooling end 212 is lower than the second cooling end 222.
In this embodiment, the locking member 51 is disposed on the cover 5, and by tightening the locking member 51, the cover 5 is pressed against the second cooling end 222, the water cooling plate 4, and the first cooling end 212. When the water cooling plate 4 is damaged, the damaged water cooling plate 4 can be taken out by unscrewing the locking piece 51, and a new water cooling plate 4 can be fixed by screwing the locking piece 51. Therefore, by unscrewing or tightening the locking member 51, the water-cooled heat sink 4 is quickly attached and detached.
In the present embodiment, the water cooling plate 4 is provided with a heat equalizing pipe 61. The temperature of the surface of the water-cooling plate 4 is made uniform by the temperature equalizing heat pipe 61, thereby ensuring the heat radiation performance of the water-cooling plate 4.
In this embodiment, the material of the water-cooling plate 4 is aluminum. It will be appreciated that in alternative embodiments, the material of the water cooling plate 4 may be copper or another metal.
In this embodiment, the water-cooling heat dissipation plate 4 is formed by extrusion, thereby reducing the production cost and improving the competitiveness of the product.
In this embodiment, the power device 10 may have a first protection block 71 and a second protection block 72, where a first groove (not shown) is formed on the first protection block 71, the first cooling end 212 is disposed in the first groove, the first protection block 71 is located between the first cooling end 212 and the cover plate 5, and the first protection block 71 contacts the water cooling plate 4; the second protection block 72 is provided with a second groove (not shown), the second cooling end 222 is arranged in the second groove, the second protection block 72 is positioned between the second cooling end 222 and the cover plate 5, and the second protection block 72 is in contact with the water cooling plate 4. The first and second protection blocks 71 and 72 may not only play a role of protection, thereby guaranteeing the service lives of the first and second cooling ends 212 and 222. The first protection block 71 and the second protection block 72 have heat conduction effect, and can conduct heat generated by the first cooling end 212 and the second cooling end 222 to the water cooling heat dissipation plate 4 for heat dissipation. By double heat dissipation, the heat dissipation efficiency of the water-cooled heat dissipation plate 4 is improved.
In this embodiment, the first groove is interference fit with the first cooling end 212 and the second groove is interference fit with the second cooling end 222. By interference fit, tight contact is realized between the grooves and the heat pipes, so that thermal resistance between the grooves and the heat pipes is very small, and heat conduction efficiency between the grooves and the heat pipes is greatly improved, thereby improving heat dissipation efficiency of the power device 10.
In the present embodiment, the coil 3 includes a first coil 31 and a second coil 32, the first coil 31 is sleeved on the stem 12, the second coil 32 is sleeved on the first coil 31, wherein the first heat absorbing end 211 is located between the stem 12 and the first coil 31 and contacts the first coil 31, and the second heat absorbing end 221 is located between the first coil 31 and the second coil 32 and contacts the second coil 32.
The inventor finds that the heat pipes can only be arranged at two sides of the coil due to the influence of the structure, and the coils at the other two sides can only conduct heat to the heat pipes for heat dissipation through the coil, so that the heat dissipation efficiency is low, the heat dissipation on the surface of the coil is uneven, the phenomenon of overhigh local temperature is easy to occur, the performance of the power device is influenced, and even the power device is burnt out when the local temperature exceeds a critical value. In this embodiment, the electric power device 10 may have a third protection block 73 and a first heat equalizing pipe 62, where a third groove (not shown) is formed on the third protection block 73, the first heat equalizing pipe 62 is disposed in the third groove, and the third protection block 73 is located between the stem 12 and the first coil 31 and is disposed adjacent to the first heat pipe 21, where one end of the first heat equalizing pipe 62 contacts the first coil 31, and the other end contacts the first heat absorbing end 211. The heat generated from the other two sides of the first coil 31 is conducted to the first heat absorbing end 211 through the first heat homogenizing heat pipe 62 in the third protection block 73, so that the temperature of the other two sides of the first coil 31 is reduced, the temperature of the inner surface of the first coil 31 is in a uniform state, and the performance and the service life of the electric device 10 are ensured. The third protection block 73 may not only play a role of protection, thereby guaranteeing the service life of the first uniform temperature heat pipe 62. The third protection block 73 has a heat conduction effect, and can conduct heat generated on the other two sides of the first coil 31 to the first uniform temperature heat pipe 62, and then conduct the heat to the first heat absorbing end 211 through the first uniform temperature heat pipe 62 for heat dissipation. By the double heat dissipation, the heat dissipation efficiency of the first coil 31 is improved.
In this embodiment, the power device 10 may have a fourth protection block 74 and a second heat-equalizing tube 63, where a fourth groove (not shown) is formed on the fourth protection block 74, the second heat-equalizing tube 63 is disposed in the fourth groove, and the fourth protection block 74 is located between the first coil 31 and the second coil 32 and is disposed adjacent to the second heat tube 22, where one end of the second heat-equalizing tube 63 contacts the second coil 32, and the other end contacts the second heat-absorbing end 221. The fourth protection block 74 and the second soaking heat pipe 63 have the above effects, and are not described here again. The fourth protection block 74 and the second heat pipe 63 improve the heat dissipation efficiency of the second coil 32.
In this embodiment, the third groove is in interference fit with the first heat pipe 62, and the fourth groove is in interference fit with the second heat pipe 63. Through interference fit to make the recess and the thermal insulation pipe between realize close contact, make the thermal resistance between the two very little, improved the efficiency of heat conduction between the two greatly, thereby improved the radiating efficiency of coil 3.
In the present embodiment, the materials of the first protection block 71, the second protection block 72, the third protection block 73 and the fourth protection block 74 are aluminum. It will be appreciated that in alternative embodiments, the materials of the first guard block 71, the second guard block 72, the third guard block 73 and the fourth guard block 74 may also be copper or other metals.
In this embodiment, the heat generated on the surface of the coil 3 can be uniformly conducted to the heat pipe 2 to dissipate heat through the first temperature equalizing heat pipe 62 and the second temperature equalizing heat pipe 63, so that the temperature of the surface of the coil 3 is always in a uniform state, and the performance and the service life of the electric power device 10 are ensured.
As shown in the figure, the power device 10 may have a clamping plate 8, where the clamping plate 8 includes a first clamping plate 81 and a second clamping plate 82, a fifth groove (not shown) is formed on the first clamping plate 81, and a first heat absorbing end 211 is disposed in the fifth groove; the second clamping plate 82 is provided with a sixth groove (not shown), and the second heat absorbing end 221 is disposed in the sixth groove. The first clamping plate 81 is located between the core assembly 1 and the first coil 31 and is in contact with the core assembly 1 and the first coil 31, respectively, and the second clamping plate 82 is located between the first coil 31 and the second coil 32 and is in contact with the first coil 31 and the second coil 32, respectively. The heat generated from the core assembly 1 and the first coil 31 is conducted to the water cooling plate 4 through the first heat pipe 21 in the first clamping plate 81, thereby lowering the temperature of the core assembly 1 and the first coil 31. The heat generated by the first coil 31 and the second coil 32 is conducted to the water cooling plate 4 through the second heat pipe 22 in the second clamping plate 82, thereby lowering the temperature of the first coil 31 and the second coil 32.
In the prior art, the heat pipe is arranged in the groove of the clamping plate in a clearance fit mode, so that a clearance exists between the heat pipe and the groove, thermal resistance between the heat pipe and the groove is very large, heat conduction efficiency between the heat pipe and the groove is greatly reduced, and heat dissipation efficiency of the electric device is reduced. In this embodiment, the fifth groove is in interference fit with the first heat absorbing end 211, and the sixth groove is in interference fit with the second heat absorbing end 221. By interference fit, the grooves are tightly contacted with the heat pipes, so that the thermal resistance between the grooves and the heat pipes is very small, the heat conduction efficiency between the grooves and the heat pipes is greatly improved, and the heat dissipation efficiency of the power device 10 is improved.
Specifically, the upper yoke 11, the stem 12 and the lower yoke 13 are clamped and fixed by the first clamping plate 81, the upper yoke 11, the stem 12 and the lower yoke 13 are separated by an air gap plate, the number of the stem 12 is plural, and the plurality of the stem 12 are separated by the air gap plate.
In the present embodiment, the power device 10 is a reactor. It will be appreciated that in alternative embodiments, the power device 10 may also be a transformer.
The working principle of the heat pipe is as follows:
the heat absorption and the heat release of the object are opposite, and when the temperature difference exists, the phenomenon that heat is transferred from a high temperature position to a low temperature position is inevitable. Three ways of transferring heat: the heat pipe uses evaporation refrigeration, so that the temperature difference between two ends of the heat pipe is large, and the heat is quickly conducted. A typical heat pipe includes a tube housing, a wick, and an end cap. The heat pipe is pumped into negative pressure state and filled with proper liquid with low boiling point and easy volatilization. The walls of the tube have a wick that is constructed of a capillary porous material. When one end of the heat pipe is heated, the liquid in the capillary tube evaporates rapidly, the vapor flows to the other end under a tiny pressure difference, heat is released, the vapor is condensed into liquid again, the liquid flows back to the evaporation section along the porous material by the action of capillary force, and the circulation is not only performed, but the heat is transferred from one end of the heat pipe to the other end. This cycle is rapid and heat is conducted continuously.
The foregoing describes a phase-change heat dissipation system-based power device, and those skilled in the art, based on the concepts of the embodiments of the present invention, may vary in specific embodiments and application ranges, and in summary, the disclosure should not be construed as limiting the invention.
Claims (6)
1. An electrical device based on a phase-change heat dissipation system, comprising:
the iron core assembly comprises an upper iron yoke, a core column and a lower iron yoke which are sequentially arranged from top to bottom;
the heat pipe comprises a first heat pipe and a second heat pipe, wherein the first heat pipe comprises a first heat absorption end and a first cooling end, the first cooling end is bent and extended, the second heat pipe comprises a second heat absorption end and a second cooling end, the second cooling end is bent and extended, and the first heat absorption end and the second heat absorption end are opposite and are arranged at intervals;
the coil is sleeved on the core column and positioned between the upper iron yoke and the lower iron yoke, and the coil is respectively contacted with the first cooling end and the second cooling end;
the cover plate is arranged on the second cooling end and is used for pressing the second cooling end; and
the water cooling plate is detachably arranged in the accommodating space and is respectively contacted with the first cooling end and the second cooling end;
the coil comprises a first coil and a second coil, the first coil is sleeved on the core column, the second coil is sleeved on the first coil, the first heat absorbing end is positioned between the core column and the first coil and is in contact with the first coil, and the second heat absorbing end is positioned between the first coil and the second coil and is in contact with the second coil;
the electric power device further comprises a third protection block and a first temperature-equalizing heat pipe, a third groove is formed in the third protection block, the first temperature-equalizing heat pipe is arranged in the third groove, the third protection block is located between the core column and the first coil and is arranged adjacent to the first heat pipe, one end of the first temperature-equalizing heat pipe is in contact with the first coil, and the other end of the first temperature-equalizing heat pipe is in contact with the first heat absorbing end; and/or the electric power device further comprises a fourth protection block and a second heat-equalizing heat pipe, wherein a fourth groove is formed in the fourth protection block, the second heat-equalizing heat pipe is arranged in the fourth groove, the fourth protection block is positioned between the first coil and the second coil and is arranged adjacent to the second heat pipe, one end of the second heat-equalizing heat pipe is in contact with the second coil, and the other end of the second heat-equalizing heat pipe is in contact with the second heat-absorbing end;
the power device is a reactor or a transformer.
2. The electric power device according to claim 1, wherein a locking member is provided on the cover plate, and the cover plate, the second cooling end, the water-cooled heat dissipation plate, and the first cooling end are abutted against each other by tightening the locking member.
3. The electric power device according to claim 1, wherein the water-cooled heat dissipation plate is provided with a heat equalizing pipe.
4. The power device according to claim 1, further comprising a first protection block, wherein a first groove is formed in the first protection block, the first cooling end is arranged in the first groove, the first protection block is located between the first cooling end and the cover plate, and the first protection block is in contact with the water-cooling heat dissipation plate; and/or, the electric power device further comprises a second protection block, a second groove is formed in the second protection block, the second cooling end is arranged in the second groove, the second protection block is located between the second cooling end and the cover plate, and the second protection block is in contact with the water-cooling heat dissipation plate.
5. The electrical device of claim 4, wherein the first groove and the first cooling end are interference fit and/or the second groove and the second cooling end are interference fit.
6. The electrical device of claim 1, wherein the third groove and the first temperature-equalizing tube are interference fit and/or the fourth groove and the second temperature-equalizing tube are interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910620038.1A CN110211773B (en) | 2019-07-10 | 2019-07-10 | Power device based on phase-change heat dissipation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910620038.1A CN110211773B (en) | 2019-07-10 | 2019-07-10 | Power device based on phase-change heat dissipation system |
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| Publication Number | Publication Date |
|---|---|
| CN110211773A CN110211773A (en) | 2019-09-06 |
| CN110211773B true CN110211773B (en) | 2023-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910620038.1A Active CN110211773B (en) | 2019-07-10 | 2019-07-10 | Power device based on phase-change heat dissipation system |
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| CN113555193A (en) * | 2020-04-26 | 2021-10-26 | 南京南瑞继保电气有限公司 | Electric reactor |
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| CN108962553A (en) * | 2018-07-13 | 2018-12-07 | 深圳市金顺怡电子有限公司 | One kind having hot pipe conducting high-efficient heat-dissipating encapsulating class transformer reactance device structure |
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| KR102045895B1 (en) * | 2015-06-18 | 2019-11-18 | 엘에스산전 주식회사 | Cooling Device of Power Transformer |
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| JPH11288819A (en) * | 1998-04-01 | 1999-10-19 | Nippon Kinzoku Co Ltd | Transformer and reactor |
| CN101692378A (en) * | 2009-09-14 | 2010-04-07 | 株洲时代散热技术有限公司 | Strong cooling heat dissipation method and device of high-power iron core reactor |
| CN201681694U (en) * | 2009-12-30 | 2010-12-22 | 株洲时代散热技术有限公司 | Reactor heat sink |
| CN103117151A (en) * | 2013-02-26 | 2013-05-22 | 上海鹰峰电子科技有限公司 | Water-cooled reactor with heat conducted by heat tubes |
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| CN110211773A (en) | 2019-09-06 |
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