A laminated high-frequency micro transformer

Abstract

The application discloses a laminated high-frequency micro transformer and relates to the technical field of transformers. The laminated high-frequency micro transformer comprises a transformer body, the transformer body comprises a lower magnetic core, the top end of the lower magnetic core is provided with an upper magnetic core, the inner sides of the upper magnetic core and the lower magnetic core are both provided with a framework, the outer surface of the framework is provided with a substrate, the surfaces of the substrate and the framework are both provided with pins, the inner surfaces and the outer surfaces of the upper magnetic core and the lower magnetic core are both provided with self-heat-dissipation mechanisms and quick-assembly mechanisms, and the outer surface of the pin is provided with a leakage inductance adjusting mechanism. Through the self-heat-dissipation mechanisms, the leakage inductance adjusting mechanism and the quick-assembly mechanism, the self-adjusting function of the heat dissipation fin is realized at a lower cost, the substrate spacing adjusting function is more efficient, and the assembling function is more stable.

Description

Technical Field

[0001] This invention relates to the field of transformer technology, specifically to a stacked high-frequency micro transformer. Background Technology

[0002] A transformer is a static power conversion device based on the principle of electromagnetic induction. Its core function is to change the voltage and current levels of alternating current without changing the frequency, while achieving electrical isolation. High-frequency micro transformers design the primary and secondary windings as spiral-shaped planar copper foil traces. By fabricating multi-layer PCB substrates, these winding layers are stacked and pressed together, with the layers connected by vias. They are widely used in modern electronic devices with high frequency, small size, and light weight.

[0003] However, existing transformers have the following shortcomings:

[0004] Existing transformers mostly use fixed heat sinks for heat dissipation, which not only limits the heat flow path but also lacks the ability to adaptively adjust according to the internal temperature of the transformer, resulting in low heat dissipation efficiency. The spacing between the transformer substrates in use is fixed. When it is necessary to increase the spacing and fill with thermally conductive adhesive to improve the heat conduction path, or when leakage inductance needs to be adjusted due to substandard testing, the transformer can only be disassembled and the gaskets replaced to adjust the substrate spacing, which has obvious limitations. Existing transformers mostly use a snap-fit ​​method for fixing, which is prone to loosening under severe vibration, resulting in poor stability.

[0005] Therefore, we propose a stacked high-frequency micro transformer to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a stacked high-frequency micro transformer that, through the arrangement of a self-heating mechanism, a leakage inductance adjustment mechanism, and a quick-assembly mechanism, achieves a lower-cost heat sink self-adjustment function, a more efficient substrate spacing adjustment function, and a more stable assembly function, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a stacked high-frequency micro transformer, comprising a transformer body, the transformer body comprising a lower magnetic core, an upper magnetic core mounted on the top of the lower magnetic core, a frame sleeved on the inner side of both the upper and lower magnetic cores, a substrate sleeved on the outer surface of the frame, pins mounted on both sides of the surface of the substrate and the frame, a self-heating mechanism and a quick-release mechanism respectively provided on the inner and outer surfaces of the upper and lower magnetic cores, and a leakage inductance adjustment mechanism provided on the outer surface of the pins;

[0008] The self-heating mechanism includes a dustproof mesh installed on both sides of the outer surface of the upper and lower magnetic cores. Heat sinks are provided on both sides of the inner surface of the upper and lower magnetic cores, and grooves are formed on both sides of the inner surface of the upper and lower magnetic cores. A rotating shaft is fixedly installed on both sides of the outer surface of each heat sink, and the rotating shaft is rotatably connected to the inner side of the groove. A cover plate is connected to the top of the heat sink. An SMA spiral blade is installed on one side of the inner surface of the cover plate. A counterweight is fixedly installed on one side of the outer surface of the SMA spiral blade. A return spring is fixedly installed on one side of the outer surface of the counterweight. A heat-conducting plate is installed on one side of the outer surface of the cover plate. Mounting holes are formed at the top of both the cover plate and the heat sink, and fixing bolts are rotatably connected to the inner side of the mounting holes.

[0009] Preferably, a groove is provided on the inner side of the heat sink, and the cover plate is slidably connected to the inner side of the groove.

[0010] Preferably, the SMA spiral blade is compressed into a spring shape, the other side of the outer surface of the return spring contacts one side of the inner surface of the heat sink, and the counterweight is slidably connected to the inner side of the heat sink.

[0011] Preferably, the distribution position of the heat-conducting sheet corresponds to the distribution position of the SMA spiral plate.

[0012] Preferably, the leakage inductance adjustment mechanism includes an insulating sleeve, which is sleeved on the surface of the pin and is made of silicone rubber. Positioning blocks are fixedly installed at the four corners of the bottom end of the insulating sleeve, and a positioning groove is opened at the top of the substrate, with the positioning blocks inserted into the inner side of the positioning groove.

[0013] Preferably, the outer surface of the pin is provided with a movable groove, the insulating sleeve is slidably connected to the inner side of the movable groove, and a knob is rotatably connected to the top surface of the pin. Both the inner side of the knob and the top surface of the pin are provided with threaded grooves.

[0014] Preferably, the quick-release mechanism includes a rotating rod, which is rotatably connected to both sides of the outer surface of the lower magnetic core, and a connecting piece is fixedly installed on the outer surface of the rotating rod. Arc-shaped grooves are opened on both sides of the outer surface of the upper magnetic core, and torsion springs are fixedly installed on both sides of the outer surface of the connecting piece.

[0015] Preferably, the torsion spring is sleeved on the outer surface of the rotating rod, an arc-shaped block is fixedly installed at one end of the outer surface of the connecting piece, a limit frame is fixedly installed on the outer surface of the arc-shaped block, the arc-shaped block is inserted into the inner side of the arc-shaped groove, and a support block is fixedly installed at the top end of the upper magnetic core.

[0016] Preferably, a shaft is fixedly installed on the inner side of the support block, and a movable block is rotatably connected to the outer surface of the shaft. Both the arc-shaped block and the limiting frame have arc-shaped movement paths, and a locking block is fixedly installed at one end of the outer surface of the movable block.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This invention achieves a lower-cost self-adjusting function for the heat sink by setting up a self-heating mechanism. When the internal temperature of the transformer body is too high, the heat will be transferred to the corresponding SMA spiral blade through the heat-conducting plate. The SMA spiral blade undergoes a phase change and contracts when heated, overcoming the elastic force of the return spring and driving the counterweight to move. This causes the center of gravity of the heat sink to shift and rotate, which can increase the heat dissipation surface area, optimize the airflow channel, and enable efficient heat dissipation. After the temperature drops, the SMA spiral blade softens and returns to its original shape under the action of the return spring. The counterweight and heat sink then return to their original positions. At this time, the heat sink closes and, together with the dustproof net, prevents dust from entering. Without the need for a driver, it can intelligently adjust according to the internal temperature of the transformer body, improving the heat dissipation efficiency of the transformer body and reducing the operating cost. When replacing the SMA spiral blade, simply remove the fixing bolt and pull out the cover plate to replace the SMA spiral blade on the cover plate, making it highly practical.

[0019] 2. This invention incorporates a leakage inductance adjustment mechanism, enabling more efficient substrate spacing adjustment. First, the frame is fitted onto the lower magnetic core. Then, the substrates are stacked on the frame, and the positioning blocks on the insulating sleeve are aligned with the positioning slots and inserted, allowing the substrates to be supported by the insulating sleeves. Next, the pins are passed through the substrates and frame, and a knob is fitted onto the pin surface through a threaded groove. The knob is used to press the insulating sleeve. Because the insulating sleeve is made of elastic silicone rubber, multiple insulating sleeves can distribute the pressure, ensuring consistent spacing between multiple substrates. During transformer operation, the spacing between substrates can also be adjusted by rotating the knob to press the insulating sleeve. Leakage inductance can be adjusted without disassembling the transformer body, reducing labor costs and providing convenience.

[0020] 3. This invention features a quick-assembly mechanism, achieving more stable assembly. First, the connecting piece is rotated, causing the arc-shaped block to move and insert into the arc-shaped groove. As the arc-shaped block moves, it causes the limiting frame to slide in from the inside of the support block, squeezing and rotating the movable block. The locking block restricts the movement path of the movable block. After the limiting frame slides into the appropriate position inside the support block, the movable block is reset, allowing it to engage with the limiting frame together with the support block. At this time, the continuous downward force of the torsion spring causes the connecting piece and its arc-shaped block and limiting frame to move backward. The arc-shaped block engages in the arc-shaped groove through its own arc-shaped movement path, while the movable block restricts the limiting frame. The more violent the movement of the limiting frame, the tighter the restriction of the movable block, and the arc-shaped block cannot move. While achieving rapid assembly, the double limiting mechanism prevents the limiting frame from being shaken by the violent vibration of the transformer body, thus improving the stability of the transformer body. Attached Figure Description

[0021] Figure 1 This is a perspective view of the front structure of a stacked high-frequency micro transformer according to the present invention.

[0022] Figure 2 This is a three-dimensional view of the disassembled structure of a stacked high-frequency micro transformer according to the present invention;

[0023] Figure 3 This is a side view of the upper magnetic core in a stacked high-frequency micro transformer according to the present invention.

[0024] Figure 4 This is an enlarged perspective view of the self-heating mechanism in a stacked high-frequency micro transformer according to the present invention.

[0025] Figure 5 This is an enlarged perspective view of the disassembled structure of the heat sink in a stacked high-frequency micro transformer according to the present invention.

[0026] Figure 6 This is a side view of the leakage inductance adjustment mechanism in a stacked high-frequency micro transformer according to the present invention.

[0027] Figure 7 This invention relates to a stacked high-frequency micro transformer. Figure 6 Enlarged 3D view of the structure at point A in the middle;

[0028] Figure 8 This is a side view of the quick-assembly mechanism in a stacked high-frequency micro transformer according to the present invention.

[0029] Figure 9 This is an enlarged perspective view of the cross-sectional structure of the support block in a stacked high-frequency micro transformer according to the present invention.

[0030] In the diagram: 1. Transformer body; 101. Lower magnetic core; 102. Upper magnetic core; 103. Frame; 104. Substrate; 105. Pin; 2. Self-heating mechanism; 201. Dustproof mesh; 202. Heat sink; 203. Groove; 204. Shaft; 205. Cover plate; 206. SMA spiral plate; 207. Counterweight; 208. Return spring; 209. Heat-conducting plate; 210. Mounting hole; 211. Fixing bolt; 3. Leakage inductance adjustment mechanism; 301. Insulating sleeve; 302. Positioning block; 303. Positioning groove; 304. Knob; 305. Threaded groove; 4. Quick-release mechanism; 401. Rotating rod; 402. Connecting piece; 403. Torsion spring; 404. Arc block; 405. Limiting frame; 406. Arc groove; 407. Support block; 408. Movable block; 409. Shaft. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see the appendix Figure 1 -Appendix Figure 9 As shown, the present invention provides a technical solution: a stacked high-frequency micro transformer, including a transformer body 1, the transformer body 1 including a lower magnetic core 101, an upper magnetic core 102 installed at the top of the lower magnetic core 101, a frame 103 sleeved on the inner side of both the upper magnetic core 102 and the lower magnetic core 101, a substrate 104 sleeved on the outer surface of the frame 103, pins 105 installed on both sides of the surface of the substrate 104 and the frame 103, a self-heating mechanism 2 and a quick-release mechanism 4 respectively provided on the inner and outer surfaces of the upper magnetic core 102 and the lower magnetic core 101, and a leakage inductance adjustment mechanism 3 provided on the outer surface of the pins 105.

[0033] Example 1, according to Figure 1-5As shown, the self-heating mechanism 2 includes a dustproof mesh 201, which is installed on both sides of the outer surface of the upper magnetic core 102 and the lower magnetic core 101. Heat sinks 202 are provided on both sides of the inner surface of the upper and lower magnetic cores 102, and grooves 203 are formed on both sides of the inner surface of the upper and lower magnetic cores 102. Rotating shafts 204 are fixedly installed on both sides of the outer surface of the heat sinks 202, and the rotating shafts 204 are rotatably connected to the inner side of the grooves 203. A cover plate 205 is connected to the top of the heat sink 202. An SMA spiral blade 206 is installed on one side of the inner surface of the cover plate 205, and a counterweight 207 is fixedly installed on one side of the outer surface of the SMA spiral blade 206. A return spring 208 is fixedly installed on one side of the outer surface of block 207. A heat-conducting plate 209 is installed on one side of the outer surface of cover plate 205. Both cover plate 205 and heat sink 202 have mounting holes 210 at their top ends. Fixing bolts 211 are rotatably connected to the inner side of mounting holes 210. A sliding groove is opened on the inner side of heat sink 202. Cover plate 205 is slidably connected to the inner side of the sliding groove. SMA spiral plate 206 is compressed into a spring shape. The other side of the outer surface of return spring 208 contacts one side of the inner surface of heat sink 202. Counterweight block 207 is slidably connected to the inner side of heat sink 202. The distribution position of heat-conducting plate 209 corresponds to the distribution position of SMA spiral plate 206.

[0034] The overall effect of Embodiment 1 is as follows: it achieves a lower-cost self-adjusting function for the heat sink 202. When the temperature inside the transformer body 1 is too high, the heat is quickly transferred to the corresponding SMA spiral plate 206 through the heat-conducting plate 209. The SMA spiral plate 206 undergoes a phase change and contracts upon heating, overcoming the elastic force of the return spring 208 and driving the counterweight 207 to move inside the heat sink 202, causing the center of gravity of the heat sink 202 to shift to the other end, thereby driving the heat sink 202 to rotate. This increases the heat dissipation surface area, optimizes the airflow channel, and achieves efficient heat dissipation. After the temperature drops, the SMA spiral plate 206... Phase 06 softens and returns to its original state under the action of the return spring 208. The counterweight 207 and the heat sink 202 then return to their original positions. At this time, the heat sink 202 closes, and together with the dustproof net 201, it prevents dust from entering. This structure does not require a driver and can intelligently adjust according to the internal temperature of the transformer body 1, which not only improves the heat dissipation efficiency of the transformer body 1 but also reduces the operating cost. When replacing the SMA spiral blade 206, simply remove the fixing bolt 211 from the mounting hole 210 and pull the cover plate 205 out of the slide groove to replace the SMA spiral blade 206 on the cover plate 205. It is highly practical.

[0035] Example 2, according to Figure 2 , Figure 6 and Figure 7As shown, the leakage inductance adjustment mechanism 3 includes an insulating sleeve 301, which is sleeved on the surface of the pin 105 and is made of silicone rubber. Positioning blocks 302 are fixedly installed at the four corners of the bottom end of the insulating sleeve 301. A positioning groove 303 is opened at the top of the substrate 104. The positioning blocks 302 are inserted into the inner side of the positioning groove 303. A moving groove is opened on the outer surface of the pin 105. The insulating sleeve 301 is slidably connected to the inner side of the moving groove. A knob 304 is rotatably connected to the top of the surface of the pin 105. Threaded grooves 305 are opened on the inner side of the knob 304 and the top of the surface of the pin 105.

[0036] The overall effect of Embodiment 2 is as follows: it achieves a more efficient function for adjusting the spacing of the substrates 104. First, the frame 103 is placed on the lower magnetic core 101. Then, the substrates 104 are stacked on the frame 103, and the positioning block 302 on the insulating sleeve 301 is aligned with the positioning groove 303 and inserted, so that the substrates 104 are supported by the insulating sleeve 301. Next, the pin 105 is passed through the substrate 104 and the frame 103. Then, the knob 304 is placed on the surface of the pin 105 through the threaded groove 305. The insulating sleeve 301 is squeezed by the knob 304. Since the insulating sleeve 301 is made of elastic silicone rubber, multiple sets of insulating sleeves 301 can distribute the pressure, thereby ensuring that the spacing of multiple sets of substrates 104 is consistent. Similarly, during the use of the transformer body 1, the spacing of the substrates 104 can be adjusted by rotating the knob 304 to squeeze the insulating sleeve 301. The leakage inductance adjustment can be completed without disassembling the transformer body 1, which reduces labor costs and provides convenience for the use of the transformer body 1.

[0037] Example 3, according to Figure 2 , Figure 8 and Figure 9 As shown, the quick-release mechanism 4 includes a rotating rod 401, which is rotatably connected to both sides of the outer surface of the lower magnetic core 101. A connecting piece 402 is fixedly installed on the outer surface of the rotating rod 401. Arc grooves 406 are provided on both sides of the outer surface of the upper magnetic core 102. Torsion springs 403 are fixedly installed on both sides of the outer surface of the connecting piece 402. The torsion springs 403 are sleeved on the outer surface of the rotating rod 401. An arc block 404 is fixedly installed at one end of the outer surface of the connecting piece 402. A limit frame 405 is fixedly installed on the outer surface of the arc block 404. The arc block 404 is inserted into the inner side of the arc groove 406. A support block 407 is fixedly installed at the top of the upper magnetic core 102. A shaft 409 is fixedly installed on the inner side of the support block 407. A movable block 408 is rotatably connected to the outer surface of the shaft 409. Both the arc block 404 and the limit frame 405 have arc-shaped movement paths. A locking block is fixedly installed at one end of the outer surface of the movable block 408.

[0038] The overall effect of embodiment 3 is as follows: it achieves a more stable assembly function. First, the connecting piece 402 is rotated, which drives the arc-shaped block 404 to move and insert it into the arc-shaped groove 406. As the arc-shaped block 404 moves, it drives the limiting frame 405 to slide into the inside of the support block 407, which compresses the movable block 408 and causes it to rotate. The locking block restricts the movement path of the movable block 408. After the limiting frame 405 slides into the appropriate position inside the support block 407, the movable block 408 is reset so that it and the support block 407 engage with the limiting frame 405. At this time, the torsion spring 40 3. The continuous downward force will cause the connecting piece 402 and its arc-shaped block 404 and limiting frame 405 to move backward. The arc-shaped block 404 is engaged in the arc-shaped groove 406 through its own arc-shaped movement path. The movable block 408 restricts the limiting frame 405. The more violent the movement of the limiting frame 405, the tighter the restriction of it by the movable block 408, and the arc-shaped block 404 cannot move. This structure can achieve rapid assembly, and through the double limiting effect, it can prevent the violent vibration of the transformer body 1 from shaking the limiting frame 405, effectively improving the stability of the transformer body 1.

[0039] The working principle of the entire device is as follows: During the transformer assembly process, the frame 103 is first placed on the lower magnetic core 101, then the substrate 104 is stacked on the frame 103, and the positioning block 302 on the insulating sleeve 301 is aligned with the positioning groove 303 and inserted, so that the substrates 104 are supported by the insulating sleeve 301. Next, the pin 105 is passed through the substrate 104 and the frame 103, and the knob 304 is fitted onto the surface of the pin 105 through the threaded groove 305, so that the knob 304 compresses the insulating sleeve 301. Since the silicone rubber material of the insulating sleeve 301 is elastic, multiple sets of insulating sleeves 301 will spread the pressure, so that the spacing of multiple sets of substrates 104 is consistent. Similarly, during the use of the transformer body 1, the pressure can also be evenly distributed by rotating the knob. Button 304 compresses the insulating sleeve 301, adjusting the spacing of the substrate 104. This allows for leakage inductance adjustment without disassembling the transformer body 1, reducing labor costs and simplifying the use of the transformer body 1. Then, the upper magnetic core 102 is fitted onto the lower magnetic core 101, and the connecting piece 402 is rotated to move the arc-shaped block 404, inserting it into the arc-shaped groove 406. The movement of the arc-shaped block 404 causes the limiting frame 405 to slide into the support block 407, compressing the movable block 408 and causing it to rotate. A locking block restricts the movement path of the movable block 408 until the limiting frame 405 slides into the appropriate position inside the support block 407. The movable block 408 can then be reset to align with the support block 407 and the limiting frame 405. During engagement, the downward force of the torsion spring 403 drives the connecting piece 402 and its arc-shaped block 404 to move backward against the limiting frame 405. The arc-shaped movement path of the arc-shaped block 404 causes it to engage within the arc-shaped groove 406. The movable block 408 restricts the limiting frame 405; the more violently the limiting frame 405 moves, the tighter the restriction by the movable block 408 becomes, preventing the arc-shaped block 404 from moving. This dual limiting mechanism ensures rapid assembly while preventing the limiting frame 405 from being shaken by violent vibrations of the transformer body 1, thus improving the stability of the transformer body 1. When the temperature inside the transformer body 1 becomes too high, the heat is quickly transferred through the heat-conducting plate 209 to the corresponding SMA spiral plate 206. When heated, the SMA spiral blade 206 undergoes a phase change and contracts, causing it to overcome the elastic force of the return spring 208 and move the counterweight 207 inside the heat sink 202. The counterweight 207 shifts the center of gravity of the heat sink 202 to the other end, causing the heat sink 202 to rotate. This increases the heat dissipation surface area of ​​the heat sink 202, optimizes airflow, and achieves optimal heat dissipation. After the temperature decreases, the SMA spiral blade 206 softens due to the phase change, and the return spring 208 restores it to its original shape. The counterweight 207 and heat sink 202 then move back to their original positions, and the closure of the heat sink 202 and the dust filter 201 prevent dust from entering.This allows the heat sink 202 to intelligently adjust according to the internal temperature of the transformer body 1 without the need for a driver, improving the heat dissipation efficiency of the transformer body 1 and reducing operating costs. When replacing the SMA spiral blades 206, the fixing bolts 211 can be removed from the mounting hole 210, and the cover plate 205 can be removed from the groove, allowing the SMA spiral blades 206 on the cover plate 205 to be replaced. This design offers high practicality.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laminated high-frequency micro transformer comprising a transformer body (1), characterized in that: The transformer body (1) includes a lower magnetic core (101), an upper magnetic core (102) is installed at the top of the lower magnetic core (101), a frame (103) is sleeved on the inner side of the upper magnetic core (102) and the lower magnetic core (101), a base plate (104) is sleeved on the outer surface of the frame (103), and pins (105) are installed on both sides of the surface of the base plate (104) and the frame (103). A self-heating mechanism (2) and a quick-release mechanism (4) are respectively provided on the inner and outer surfaces of the upper magnetic core (102) and the lower magnetic core (101), and a leakage inductance adjustment mechanism (3) is provided on the outer surface of the pins (105). The self-heating mechanism (2) includes a dustproof mesh (201), which is installed on both sides of the outer surface of the upper magnetic core (102) and the lower magnetic core (101). Heat sinks (202) are provided on both sides of the inner surface of the upper magnetic core (102) and the lower magnetic core (101). Grooves (203) are provided on both sides of the inner surface of the upper magnetic core (102) and the lower magnetic core (101). Rotating shafts (204) are fixedly installed on both sides of the outer surface of the heat sinks (202). The rotating shafts (204) are rotatably connected to the inner side of the grooves (203). The top of the heat sink (202) is connected to a cover plate (205). An SMA spiral blade (206) is installed on one side of the inner surface of the cover plate (205). A counterweight (207) is fixedly installed on one side of the outer surface of the SMA spiral blade (206). A return spring (208) is fixedly installed on one side of the outer surface of the counterweight (207). A heat-conducting plate (209) is installed on one side of the outer surface of the cover plate (205). The top of both the cover plate (205) and the heat sink (202) are provided with mounting holes (210). A fixing bolt (211) is rotatably connected to the inner side of the mounting hole (210). The SMA spiral plate (206) is compressed into a spring shape, the other side of the outer surface of the return spring (208) contacts one side of the inner surface of the heat sink (202), and the counterweight (207) is slidably connected to the inner side of the heat sink (202). The distribution position of the heat-conducting plate (209) corresponds to the distribution position of the SMA spiral plate (206); The leakage inductance adjustment mechanism (3) includes an insulating sleeve (301), which is sleeved on the surface of the pin (105). The insulating sleeve (301) is made of silicone rubber. Positioning blocks (302) are fixedly installed at the four corners of the bottom end of the insulating sleeve (301). A positioning groove (303) is opened at the top of the substrate (104). The positioning blocks (302) are inserted into the inside of the positioning groove (303). The outer surface of the pin (105) is provided with a movable groove, the insulating sleeve (301) is slidably connected to the inner side of the movable groove, and a knob (304) is rotatably connected to the top surface of the pin (105). The inner side of the knob (304) and the top surface of the pin (105) are both provided with threaded grooves (305).

2. The stacked high-frequency micro transformer according to claim 1, characterized by: The heat sink (202) has a groove on its inner side, and the cover plate (205) is slidably connected to the inner side of the groove.

3. The stacked high-frequency micro transformer according to claim 1, characterized by: The quick-release mechanism (4) includes a rotating rod (401), which is rotatably connected to both sides of the outer surface of the lower magnetic core (101). A connecting piece (402) is fixedly installed on the outer surface of the rotating rod (401). An arc-shaped groove (406) is opened on both sides of the outer surface of the upper magnetic core (102). A torsion spring (403) is fixedly installed on both sides of the outer surface of the connecting piece (402).

4. The stacked high-frequency micro transformer according to claim 3, characterized by: The torsion spring (403) is sleeved on the outer surface of the rotating rod (401). An arc-shaped block (404) is fixedly installed on one end of the outer surface of the connecting piece (402). A limit frame (405) is fixedly installed on the outer surface of the arc-shaped block (404). The arc-shaped block (404) is inserted into the inner side of the arc-shaped groove (406). A support block (407) is fixedly installed on the top of the upper magnetic core (102).

5. The stacked high-frequency micro transformer according to claim 4, characterized by: A shaft (409) is fixedly installed on the inner side of the support block (407), and a movable block (408) is rotatably connected to the outer surface of the shaft (409). The arc-shaped block (404) and the limiting frame (405) are both arc-shaped movement paths, and a locking block is fixedly installed on one end of the outer surface of the movable block (408).

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