A transformer coil assembly employing a multi-channel heat dissipation linkage structure

Abstract

The present application relates to the technical field of transformer coil, in particular to a transformer coil assembly adopting a multi-channel heat dissipation linkage structure, which comprises a coil, further comprises a shell assembly, the shell assembly comprises a shell and a cover plate which are installed outside the coil and connected with each other, a plurality of ventilation holes one are evenly arranged on the outer ring wall of the shell in a circumferential direction, and a plurality of ventilation holes two are arranged in a matrix on the bottom of the shell. A heat dissipation module one comprises an aluminum base plate which is installed inside the shell and below the coil, a heat spreader is installed on the top of the aluminum base plate, and the coil is installed on the top of the heat spreader. The heat generated by the coil is transmitted to the fins two through the heat spreader, and the heat generated by the circuit board is transmitted to the fins one through the aluminum base plate. When the heat dissipation fan blows downward, the air outside is blown downward to the surface of the coil through the ventilation holes three, thereby improving the heat dissipation effect inside the shell.

Description

Technical Field

[0001] This invention relates to the field of transformer coil technology, specifically to a transformer coil assembly employing a multi-channel heat dissipation linkage structure. Background Technology

[0002] A transformer is a device that transforms alternating current (AC) voltage, current, and impedance. When an AC current flows through the primary coil, an AC magnetic flux is generated in the iron core (or magnetic core), inducing a voltage (or current) in the secondary coil. A transformer consists of an iron core (or magnetic core) and coils. The coils have two or more windings; the winding connected to the power source is called the primary coil, and the remaining windings are called secondary coils. The core principle of wireless charging is based on the electromagnetic induction of a transformer. Essentially, it separates the iron core and windings of a traditional transformer to achieve contactless power transmission.

[0003] During wireless charging, a high-frequency alternating current is passed through the coil at the transmitter of the charging base, generating a changing magnetic field. The coil at the receiver of the device being charged (such as a mobile phone) senses this magnetic field, thus generating an induced current. During this process, the coil resistance generates Joule heat. When the coil generates excessive heat, it can easily damage internal components. Current devices typically use metal heat sinks / vapor chambers to cover the coil and motherboard chips, quickly dissipating locally concentrated heat over a larger area to dissipate heat from the coil. However, during prolonged charging, the coil generates significant heat, and the heat sink / vapor chamber is insufficient to effectively dissipate this heat, causing the coil temperature to gradually rise and affecting the lifespan of internal components. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a transformer coil assembly employing a multi-channel heat dissipation linkage structure, comprising a coil and further comprising:

[0005] The housing assembly includes a housing and a cover plate that are installed outside the coil and are interlocked with each other. The outer ring wall of the housing has a plurality of ventilation holes I evenly distributed circumferentially, and the bottom of the housing has a plurality of ventilation holes II distributed in a matrix.

[0006] Heat dissipation module one includes an aluminum substrate installed inside the housing and located below the coil, a heat spreader plate is installed on the top of the aluminum substrate, and the coil is installed on the top of the heat spreader plate.

[0007] The second heat dissipation module includes a cooling chip installed on the bottom of an aluminum substrate. A heat-conducting plate is fixedly connected to the bottom of the cooling chip, and a cooling fan is installed on the bottom of the heat-conducting plate.

[0008] The switching module includes a rotating ring rotatably mounted on the bottom of an aluminum substrate, with an annular side plate fixedly connected to the bottom of the rotating ring, and a driving assembly for driving the annular side plate to rotate is mounted on the housing.

[0009] In one possible implementation, the bottom of the housing is fixedly connected to a plurality of circumferentially evenly distributed support blocks, and a channel for air circulation is reserved between adjacent support blocks, with the second ventilation hole located directly below the cooling fan.

[0010] In one possible implementation, the cover plate is fastened to the top of the housing, the middle of the cover plate has a plurality of ventilation holes arranged in a matrix, and the top of the cover plate is fixedly connected with a plurality of protrusions arranged in a matrix.

[0011] In one possible implementation, the aluminum substrate has a plurality of circumferentially uniformly distributed through-holes, and a plurality of pairs of fins are uniformly mounted circumferentially on the top of the aluminum substrate, with the through-holes located between the pairs of fins.

[0012] In one possible implementation, the heat spreader is located on the side of fin one near the center of the aluminum substrate, and a plurality of fin two are uniformly mounted on the top of the heat spreader. The fin two are located on the side of the coil away from the center of the heat spreader. A positioning post is integrally formed on the top of the heat spreader, and the positioning post is located at the central axis of the coil.

[0013] In one possible implementation, the number of coils is not less than two and they are distributed at equal intervals. A heat-conducting sheet is installed between two adjacent coils and sleeved on the outside of the positioning post. The heat-conducting sheet has a plurality of ventilation holes distributed in a matrix.

[0014] In one possible implementation, a circular circuit board is mounted on the bottom of the aluminum substrate. The circuit board has a temperature sensor for detecting the temperature of the aluminum substrate and a control circuit connected to the temperature sensor. The circuit board is electrically connected to a coil, a cooling chip, and a cooling fan, and is sleeved on the outside of the cooling chip.

[0015] In one possible implementation, a sealing strip is fixedly connected between the top of the heat-conducting plate and the bottom of the aluminum substrate. The sealing strip surrounds the outside of the circuit board. Several fins are uniformly installed circumferentially on the bottom of the heat-conducting plate. The fins are located on the side of the cooling fan away from the central axis of the heat-conducting plate. The cooling fan is a bidirectional fan.

[0016] In one possible implementation, the rotating ring is circumferentially provided with a plurality of heat dissipation channels I corresponding to the connecting holes I, and the annular side plate is circumferentially provided with a plurality of heat dissipation channels II corresponding to the ventilation holes I, and the vertical projections of the connecting holes I and the heat dissipation channels II are alternately distributed.

[0017] In one possible implementation, the drive assembly includes an electrically operated telescopic rod fixedly mounted on the inner wall of the housing, with a pull rod rotatably connected to the bottom of the telescopic section of the electric telescopic rod, a connecting block fixedly connected to the inner ring wall of the annular side plate, the connecting block having a movable groove, and the bottom end of the pull rod slidably connected to the connecting block.

[0018] The beneficial effects of this invention are as follows: 1. This invention transfers the heat generated by the coil to fin two through a heat spreader plate, and at the same time transfers the heat generated by the circuit board to fin one through an aluminum substrate. The temperature of the aluminum substrate is detected by a temperature sensor on the circuit board. When the temperature of the aluminum substrate is low, the rotating ring rotates to the state of opening the connecting hole one. At this time, the ventilation hole one on the outer ring wall of the housing is closed, so that air flow channels are formed on the upper and lower sides of the aluminum substrate. In this way, when the cooling fan blows downward, the outside air is blown downward to the surface of the coil through the ventilation hole three, then blown horizontally over fin two and fin one, and finally blown downward through the aluminum substrate and out from the ventilation hole two at the bottom of the housing, which improves the heat dissipation effect inside the housing. The thermally conductive sheet separates the adjacent coils and forms a ventilation channel. The thermally conductive sheet can increase the efficiency of heat conduction to each layer of coils, and at the same time accelerate the air circulation and improve the heat dissipation efficiency.

[0019] 2. In this invention, when the temperature of the aluminum substrate is high, the rotating ring rotates to the closed state of the connecting hole one, separating the upper and lower sides of the aluminum substrate. At this time, the ventilation hole one is in the open state, and the cooling chip cools the aluminum substrate, allowing the aluminum substrate to carry away the heat generated by the coil and circuit board. The cooling chip transfers the heat to the heat-conducting plate and sealing strip. At this time, the cooling fan blows air upward to carry away the heat on the heat-conducting plate and sealing strip. The hot air is discharged from the ventilation hole one to the outside of the housing. The coil is cooled by semiconductor cooling, further improving the heat dissipation effect. By separating the upper and lower sides of the aluminum substrate, the hot air generated by the cooling chip during cooling can be prevented from diffusing to the top of the aluminum substrate, ensuring the cooling effect of the coil. By adopting a multi-channel linkage method for heat dissipation, when the coil temperature is low, the cooling chip switches to the closed state to reduce energy consumption, and when the coil temperature is high, the cooling chip switches to the open state to improve the heat dissipation effect. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the first angle of the present invention.

[0021] Figure 2This is a three-dimensional structural schematic diagram of the second angle of the present invention.

[0022] Figure 3 This is a cross-sectional view of the front of the present invention.

[0023] Figure 4 This is a structural separation diagram of the present invention.

[0024] Figure 5 This is a three-dimensional structural diagram of the thermally conductive sheet of the present invention.

[0025] Figure 6 This is a three-dimensional structural diagram of the heat-conducting plate of the present invention.

[0026] Figure 7 This is a partial cross-sectional view of the switching module of the present invention.

[0027] Figure 8 This is a three-dimensional structural diagram of the driving component of the present invention.

[0028] In the diagram: 1. Coil; 2. Housing assembly; 21. Housing; 211. Ventilation hole one; 212. Ventilation hole two; 213. Support block; 22. Cover plate; 221. Ventilation hole three; 222. Protrusion; 3. Heat dissipation module one; 31. Aluminum substrate; 311. Connecting hole one; 312. Fin one; 32. Heat spreader; 321. Fin two; 322. Positioning post; 33. Thermal conductive sheet; 331. Vent hole; 4. Circuit board; 5. Heat dissipation module two; 51. Cooling chip; 52. Heat conductive plate; 521. Sealing strip; 522. Fin three; 53. Cooling fan; 6. Switching module; 61. Rotating ring; 611. Heat dissipation channel one; 62. Annular side plate; 621. Heat dissipation channel two; 63. Drive assembly; 631. Electric telescopic rod; 632. Pull rod; 633. Connecting block; 634. Movable slot. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Please see Figure 1 - Figure 8A transformer coil assembly employing a multi-channel heat dissipation linkage structure includes a coil 1 and a housing assembly 2. The housing assembly 2 includes a housing 21 and a cover plate 22 installed outside the coil 1 and interlocked with each other. The outer ring wall of the housing 21 has a plurality of ventilation holes 211 evenly distributed circumferentially, and the bottom of the housing 21 has a plurality of ventilation holes 212 arranged in a matrix. A heat dissipation module 3 includes an aluminum substrate 31 installed inside the housing 21 and located below the coil 1. A heat spreader 32 is installed on the top of the aluminum substrate 31, and the coil 1 is installed on the top of the heat spreader 32. A heat dissipation module 5 includes a cooling chip 51 installed at the bottom of the aluminum substrate 31. A heat conduction plate 52 is fixedly connected to the bottom of the cooling chip 51, and a cooling fan 53 is installed at the bottom of the heat conduction plate 52. A switching module 6 includes a rotating ring 61 rotatably installed at the bottom of the aluminum substrate 31. An annular side plate 62 is fixedly connected to the bottom of the rotating ring 61. A drive assembly 63 for driving the annular side plate 62 to rotate is installed on the housing 21.

[0031] In practical use, the heat generated when the coil 1 heats up is transferred to the aluminum substrate 31 through the heat dissipation plate 32. The heat dissipation plate 32 and the aluminum substrate 31 increase the contact area with the air, thereby improving the heat dissipation effect of the coil 1. The hot air inside the housing 21 is blown downward by the cooling fan 53, so that the inside of the housing 21 forms a negative pressure. In this way, the outside air can flow into the inside of the housing 21 from top to bottom, thereby dissipating heat from the coil 1.

[0032] When the temperature of coil 1 is too high, causing the aluminum substrate 31 and the heat dissipation plate 32 to be insufficient for timely heat dissipation, the aluminum substrate 31 is cooled by the cooling chip 51. The heat generated by the heating end of the cooling chip 51 is transferred to the heat conduction plate 52, and the cooling fan 53 blows air upward to the heat conduction plate 52 to cool it down. At the same time, the drive component 63 drives the rotating ring 61 and the annular side plate 62 to rotate, switching the ventilation channel inside the housing 21, so that hot air is discharged from the ventilation hole 211 to the outside of the housing 21. By adopting a multi-channel linkage method to dissipate heat from coil 1, the heat dissipation effect of coil 1 is improved.

[0033] Please see Figure 1 - Figure 3 The bottom of the housing 21 is fixedly connected to several circumferentially evenly distributed support blocks 213, and a channel for air circulation is reserved between adjacent support blocks 213. The ventilation hole 212 is located directly below the cooling fan 53.

[0034] In practical use, the housing 21 is supported by the support block 213, so that there is enough space between the housing 21 and the table surface. When the heat conduction plate 52 blows air downward, the hot air inside the housing 21 is discharged to the bottom of the housing 21 through the second ventilation hole 212, and then diffuses to the outside through the channel between the support blocks 213, so as to avoid heat accumulation. When the heat conduction plate 52 blows air upward, the outside air can flow into the inside of the housing 21 through the second ventilation hole 212 to dissipate heat from the coil 1 and the circuit board 4.

[0035] Please see Figure 1 - Figure 3 The cover plate 22 is fastened to the top of the housing 21. The middle part of the cover plate 22 has a number of ventilation holes 221 arranged in a matrix. The top of the cover plate 22 is fixedly connected with a number of protrusions 222 arranged in a matrix.

[0036] In practical use, outside air is blown downwards onto coil 1 through ventilation hole 221, which can dissipate heat from coil 1. The protrusions 222 on the surface of cover plate 22 can provide support. When the device to be charged is placed on cover plate 22, the protrusions 222 can support the device to be charged above cover plate 22, leaving a channel for air circulation between the device to be charged and cover plate 22, so as not to affect the heat dissipation of coil 1. At the same time, when air flows between cover plate 22 and the device to be charged, it can also carry away the heat on the device to be charged, improving the heat dissipation effect.

[0037] Please see Figure 4 and Figure 7 The aluminum substrate 31 has several circumferentially evenly distributed connecting holes 311, and several pairs of fins 312 are evenly installed on the top of the aluminum substrate 31. The connecting holes 311 are located between the pairs of fins 312.

[0038] Please see Figure 3 , Figure 4 The heat spreader 32 is located on the side of the fin 312 close to the center of the aluminum substrate 31. Several fins 321 are evenly installed on the top of the heat spreader 32. The fins 321 are located on the side of the coil 1 away from the center of the heat spreader 32. A positioning post 322 is integrally formed on the top of the heat spreader 32. The positioning post 322 is located at the central axis of the coil 1.

[0039] In practical use, when the coil 1 heats up, the heat generated by the coil 1 is transferred to the aluminum substrate 31 by the heat spreader 32. The first fin 312 and the second fin 321 increase the contact area between the aluminum substrate 31 and the heat spreader 32 and the air, respectively, thereby improving the heat transfer effect between the aluminum substrate 31 and the heat spreader 32 and the air, and thus improving the heat dissipation effect of the coil 1.

[0040] The connecting hole 311 is used to connect the upper and lower sides of the aluminum substrate 31. After the air passes through the coil 1, it is blown horizontally towards the second fin 321 and the first fin 312, carrying away the heat on the second fin 321 and the first fin 312. Then the air flows from the connecting hole 311 to the bottom of the aluminum substrate 31 to dissipate heat from the components located below the aluminum substrate 31.

[0041] The positioning post 322 is used to position the coil 1, which facilitates the accurate assembly of the coil 1 with the heat spreader 32 during installation. It also prevents the coil 1 from moving with the heat spreader 32, thus improving the stability of the coil 1 installation.

[0042] Please see Figure 4 and Figure 5 There are no fewer than two coils 1, which are distributed at equal intervals. A heat-conducting sheet 33 is installed between two adjacent coils 1 and is sleeved on the outside of the positioning post 322. The heat-conducting sheet 33 has a number of ventilation holes 331 distributed in a matrix.

[0043] In practical use, the heat-conducting sheet 33 separates the adjacent coils 1 and forms a ventilation channel. When the multi-layered coils 1 heat up, each layer of coil 1 can transfer heat to the corresponding heat-conducting sheet 33. Then, the heat-conducting sheet 33 transfers the heat to the positioning post 322, and the positioning post 322 transfers the heat to the heat spreader 32. The heat-conducting sheet 33 transfers the heat of each layer of coil 1 to the heat spreader 32, preventing heat accumulation in the upper layer of coil 1. At the same time, the vent 331 can form a ventilation channel between each layer of coil 1, which can accelerate air circulation and improve heat dissipation efficiency.

[0044] Please see Figure 3 , Figure 4 and Figure 6 A circular circuit board 4 is mounted on the bottom of the aluminum substrate 31. A temperature sensor for detecting the temperature of the aluminum substrate 31 and a control circuit connected to the temperature sensor are mounted on the circuit board 4. The circuit board 4 is electrically connected to the coil 1, the cooling chip 51 and the cooling fan 53 respectively. The circuit board 4 is sleeved on the outside of the cooling chip 51.

[0045] Please see Figure 3 , Figure 4 and Figure 6 A sealing strip 521 is fixedly connected between the top of the heat-conducting plate 52 and the bottom of the aluminum substrate 31. The sealing strip 521 surrounds the outside of the circuit board 4. Several fins 522 are evenly installed on the bottom of the heat-conducting plate 52. The fins 522 are located on the side of the cooling fan 53 away from the central axis of the heat-conducting plate 52. The cooling fan 53 is a bidirectional fan.

[0046] In practical use, the temperature of the aluminum substrate 31 is detected by the temperature sensor on the circuit board 4. The heat generated by the circuit board 4 is transferred to the aluminum substrate 31. First, a threshold is set for the temperature sensor according to actual needs. In the initial state, the temperature of the aluminum substrate 31 is lower than the threshold. At this time, the circuit board 4 controls the cooling chip 51 to turn off, and the cooling fan 53 switches to the downward blowing state, so that the interior of the housing 21 forms a ventilation channel with vertical flow, and the coil 1 and the circuit board 4 are cooled by air cooling.

[0047] When the temperature of the aluminum substrate 31 exceeds the threshold, the circuit board 4 controls the cooling chip 51 to turn on, and at the same time, the cooling fan 53 switches to an upward blowing state. The cooling chip 51 cools the aluminum substrate 31, improving the heat dissipation effect on the coil 1 and the circuit board 4. The heat generated by the cooling chip 51 is transferred to the heat-conducting plate 52. The fins 522 increase the contact area between the heat-conducting plate 52 and the air. By changing the blowing direction of the cooling fan 53, the air can be directly blown onto the heat-conducting plate 52 and the fins 522 to cool them down, improving the heat dissipation effect of the heat-conducting plate 52.

[0048] The circuit board 4 and the cooling chip 51 are sealed by the sealing strip 521. When the cooling chip 51 is cooling down, the moisture in the air is prevented from coming into contact with the cooling end of the cooling chip 51 and condensing into water droplets, which could cause the circuit board 4 to be damaged by water.

[0049] Please see Figure 4 , Figure 7 and Figure 8 The rotating ring 61 has several heat dissipation channels 611 that are evenly distributed around the circumference and correspond to the connecting hole 311. The annular side plate 62 has several heat dissipation channels 621 that are evenly distributed around the circumference and correspond to the ventilation hole 211. The vertical projections of the connecting hole 311 and the heat dissipation channels 621 are alternately distributed.

[0050] Please see Figure 6 and Figure 7 The drive assembly 63 includes an electric telescopic rod 631 fixedly installed on the inner wall of the housing 21. A pull rod 632 is rotatably connected to the bottom of the telescopic section of the electric telescopic rod 631. A connecting block 633 is fixedly connected to the inner ring wall of the annular side plate 62. A movable groove 634 is provided on the connecting block 633. The bottom end of the pull rod 632 is slidably connected to the connecting block 633. The electric telescopic rod 631 is electrically connected to the circuit board 4.

[0051] In practical use, when the temperature of the aluminum substrate 31 is lower than the set value, the connecting block 633 is pushed backward by the telescopic section of the electric telescopic rod 631. This causes the connecting block 633 to drive the annular side plate 62 and the rotating ring 61 to rotate counterclockwise, rotating the heat dissipation channel 1 611 to a position aligned vertically with the connecting hole 1 311, thus opening the connecting hole 1 311. At the same time, the heat dissipation channel 2 621 rotates to a position offset from the ventilation hole 1 211, thus closing the ventilation hole 1 211. In this way, when the cooling fan 53 blows downward, the air above the aluminum substrate 31 can flow downward through the connecting hole 1 311, forming a vertically connected ventilation channel inside the housing 21, which improves the heat dissipation effect on the coil 1 and the circuit board 4.

[0052] When the temperature of the aluminum substrate 31 is higher than the set value, the connecting block 633 is pushed forward by the telescopic section of the electric telescopic rod 631. This causes the connecting block 633 to rotate the annular side plate 62 and the rotating ring 61 clockwise, rotating the heat dissipation channel 1 611 to a position offset from the connecting hole 1 311, thus closing the connecting hole 1 311. At the same time, the heat dissipation channel 2 621 rotates to a state aligned with the ventilation hole 1 211, opening the ventilation hole 1 211. In this way, when the cooling fan 53 blows air upward, the hot air generated by the heat dissipation of the heat conduction plate 52 and the fin 3 522 can be discharged to the outside of the housing 21 through the ventilation hole 1 211. Closing the connecting hole 1 311 can prevent hot air from entering the top of the aluminum substrate 31, ensuring the heat dissipation effect on the coil 1.

[0053] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, or a sliding connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A transformer coil assembly employing a multi-channel heat dissipation linkage structure, comprising a coil (1), characterized in that, Also includes: The outer casing assembly (2) includes a housing (21) and a cover plate (22) installed outside the coil (1) and fastened together. The outer ring wall of the housing (21) is provided with a plurality of ventilation holes (211) evenly distributed around the periphery, and the bottom of the housing (21) is provided with a plurality of ventilation holes (212) distributed in a matrix. Heat dissipation module 1 (3) includes an aluminum substrate (31) installed inside the housing (21) and located below the coil (1). A heat spreader (32) is installed on the top of the aluminum substrate (31), and the coil (1) is installed on the top of the heat spreader (32). Heat dissipation module two (5) includes a cooling chip (51) installed at the bottom of an aluminum substrate (31), a heat-conducting plate (52) fixedly connected to the bottom of the cooling chip (51), and a cooling fan (53) installed at the bottom of the heat-conducting plate (52). The switching module (6) includes a rotating ring (61) rotatably mounted on the bottom of an aluminum substrate (31), and an annular side plate (62) is fixedly connected to the bottom of the rotating ring (61). A driving assembly (63) for driving the annular side plate (62) to rotate is mounted on the housing (21). The aluminum substrate (31) has a plurality of circumferentially evenly distributed connecting holes (311), and a plurality of pairs of fins (312) are evenly installed on the top of the aluminum substrate (31). The connecting holes (311) are located between the pairs of fins (312). The heat spreader (32) is located on the side of the fin one (312) close to the center of the aluminum substrate (31). A number of fin two (321) are evenly installed on the top of the heat spreader (32). The fin two (321) is located on the side of the coil (1) away from the center of the heat spreader (32). The top of the heat spreader (32) is integrally formed with a positioning post (322). The positioning post (322) is located at the central axis of the coil (1). The number of coils (1) is not less than two and they are distributed at equal intervals. A heat-conducting sheet (33) is installed between two adjacent coils (1) and sleeved on the outside of the positioning post (322). The heat-conducting sheet (33) has a number of ventilation holes (331) arranged in a matrix. The rotating ring (61) is evenly provided with a plurality of heat dissipation channels 1 (611) corresponding to the connecting hole 1 (311) in the circumferential direction. The annular side plate (62) is evenly provided with a plurality of heat dissipation channels 2 (621) corresponding to the ventilation hole 1 (211) in the circumferential direction. The vertical projections of the connecting hole 1 (311) and the vertical projections of the heat dissipation channels 2 (621) are alternately distributed.

2. A transformer coil assembly with a multi-channel heat dissipation linkage structure according to claim 1, characterized in that: The bottom of the housing (21) is fixedly connected to several circumferentially evenly distributed support blocks (213), and a channel for air circulation is reserved between adjacent support blocks (213). The second ventilation hole (212) is located directly below the cooling fan (53).

3. A transformer coil assembly with a multi-channel heat dissipation linkage structure according to claim 1, characterized in that: The cover plate (22) is fastened to the top of the housing (21). The middle part of the cover plate (22) has a plurality of ventilation holes (221) arranged in a matrix. The top of the cover plate (22) is fixedly connected with a plurality of protrusions (222) arranged in a matrix.

4. A transformer coil assembly with a multi-channel heat dissipation linkage structure according to claim 1, characterized in that: A circular circuit board (4) is installed on the bottom of the aluminum substrate (31). A temperature sensor for detecting the temperature of the aluminum substrate (31) and a control circuit connected to the temperature sensor are installed on the circuit board (4). The circuit board (4) is electrically connected to the coil (1), the cooling chip (51), and the cooling fan (53). The circuit board (4) is sleeved on the outside of the cooling chip (51).

5. A transformer coil assembly with a multi-channel heat dissipation linkage structure according to claim 1, characterized in that: A sealing strip (521) is fixedly connected between the top of the heat-conducting plate (52) and the bottom of the aluminum substrate (31). The sealing strip (521) surrounds the outside of the circuit board (4). Several fins (522) are evenly installed on the bottom of the heat-conducting plate (52). The fins (522) are located on the side of the cooling fan (53) away from the central axis of the heat-conducting plate (52). The cooling fan (53) is a bidirectional fan.

6. A transformer coil assembly with a multi-channel heat dissipation linkage structure according to claim 5, characterized in that: The drive assembly (63) includes an electric telescopic rod (631) fixedly installed on the inner wall of the housing (21). A pull rod (632) is rotatably connected to the bottom of the telescopic section of the electric telescopic rod (631). A connecting block (633) is fixedly connected to the inner ring wall of the annular side plate (62). An movable groove (634) is provided on the connecting block (633). The bottom end of the pull rod (632) is slidably connected to the connecting block (633).

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