Portable gallium nitride power supply

Abstract

This invention belongs to the field of power adapter technology, specifically a portable gallium nitride (GaN) power supply. It includes a GaN power supply body with two USB ports and two Type-C ports, and a rapid heat dissipation mechanism. Through the structural design of this mechanism, during operation, the fan blows air into the housing. The air is guided by trapezoidal blocks to the top and bottom of the GaN power supply. The heat dissipation fins and ventilation holes increase the contact area between the GaN power supply and the air, enhancing its heat dissipation performance. The air passes through the ventilation holes, quickly carrying away heat, and exits through a rectangular opening, achieving air circulation. This effectively dissipates heat from the heat dissipation fins and surrounding ventilation holes, thus cooling the GaN power supply.

Description

Technical Field

[0001] This invention relates to the field of gallium nitride power supply technology, specifically a portable gallium nitride power supply. Background Technology

[0002] Gallium nitride (GaN) is a semiconductor with a large bandgap. It is an excellent material for microwave power transistors. GaN has properties such as a wide direct bandgap, strong atomic bonds, high thermal conductivity, good chemical stability, and strong radiation resistance. It has broad prospects in optoelectronics, high-temperature high-power devices, and high-frequency microwave devices.

[0003] Currently, there are gallium nitride (GaN) power supplies made of gallium nitride materials. GaN power supplies have USB ports, Type-C ports, etc. Electronic devices can be connected to GaN power supplies via data cables. GaN power supplies are small and easy to carry.

[0004] However, current gallium nitride (GaN) power supplies have poor heat dissipation performance and low heat dissipation efficiency. During the use of GaN power supplies, a large amount of heat is generated, which needs to be dissipated in time to prevent the GaN power supply from overheating and causing danger. The heat is transferred to the air through the outer casing of the GaN power supply, but this heat dissipation method has low heat dissipation efficiency. Therefore, in order to solve the above problems, a portable GaN power supply is proposed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, such as the poor heat dissipation performance and low heat dissipation efficiency of gallium nitride (GaN) power supplies, this invention proposes a portable GaN power supply.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a portable gallium nitride power supply, which includes a gallium nitride power supply body, two USB ports, two Type-C ports, and a fast heat dissipation mechanism.

[0007] The rapid heat dissipation mechanism includes a housing fixed to the gallium nitride power supply body. The housing has two rectangular openings. A fan is fixed to the inner wall of the housing, directly opposite one of the rectangular openings. The housing has two filter plates, directly opposite the rectangular openings, and the combined area of ​​the filter plates and the fan is larger than the area of ​​the rectangular openings. A first partition is fixed to the inner wall of the gallium nitride power supply body and the housing. A trapezoidal block is fixed to the gallium nitride power supply body. Multiple heat dissipation fins are fixed to the top and bottom of the gallium nitride power supply body, and multiple heat dissipation holes are formed on the heat dissipation fins. A second partition is fixed to two of the heat dissipation fins, and the two second partitions are fixedly connected to the inner wall of the housing. An opening is provided between the housing, the second partitions, and the heat dissipation fins.

[0008] Preferably, two flat plates are fixedly connected to the housing, and the filter screen is disposed on the flat plates. A first fixed plate is fixedly connected to the housing, and a T-shaped rod is slidably inserted into the first fixed plate. A first movable plate is fixedly connected to the bottom end of the T-shaped rod. Two connecting rods are rotatably connected to the bottom of the first movable plate via pins. One end of the connecting rod is rotatably connected to a second movable plate via a pin. Two second fixed plates are fixedly connected to the housing, and a guide rod is fixedly connected between the two second fixed plates. The two second movable plates are slidably connected to the surface of the guide rod. A spring is fixedly connected between the second fixed plate and the second movable plate, and the spring is sleeved on the outside of the guide rod. An insert block is fixedly connected to the second movable plate, and a fixed block is fixedly connected to the filter screen. A slot is opened on the fixed block, and the insert block is inserted into the slot.

[0009] Preferably, a vertical plate is fixedly connected to the first movable plate, a connecting plate is fixedly connected to the vertical plate, a rotating column is rotatably connected to the connecting plate, two round blocks are fixedly connected to the rotating column, a rotating plate is fixedly connected to the bottom end of the rotating column, two first magnetic sheets are fixedly connected to the top of the rotating plate, two baffles are fixedly connected to the housing, and a second magnetic sheet is fixedly connected to the bottom of the baffle, with the second magnetic sheet in contact with the first magnetic sheet.

[0010] Preferably, the gallium nitride power supply body has two vertical blocks fixedly attached to it, each vertical block has a strip-shaped opening, an L-shaped post is slidably connected inside the strip-shaped opening, a protective cover is fixedly attached between the two L-shaped posts, a square plate is fixedly attached to one end of the L-shaped post, a threaded post is threadedly connected to the square plate, a screw block is fixedly attached to one end of the threaded post, and two threaded grooves are formed on the gallium nitride power supply body, the threaded grooves being adapted to the threaded post.

[0011] Preferably, the housing has eight positioning slots, and four positioning blocks are fixedly connected to each of the two filter screens, with the positioning blocks inserted into the positioning slots.

[0012] Preferably, the first fixing plate has a first circular hole, through which the T-shaped rod slides.

[0013] Preferably, each of the two second movable plates has a second circular hole, and the guide rod slides through the two second circular holes.

[0014] Preferably, the connecting plate has a third circular hole, the rotating column is rotatably connected in the third circular hole, and the two circular blocks are in contact with the bottom and top of the connecting plate.

[0015] The advantages of this invention are:

[0016] 1. This invention, through the structural design of a rapid heat dissipation mechanism, enables the gallium nitride (GaN) power supply to operate. When the fan is activated, it blows air into the housing. Guided by a trapezoidal block, the air reaches the top and bottom of the GaN power supply. The design of the heat dissipation fins and ventilation holes increases the contact area between the GaN power supply and the air, enhancing its heat dissipation performance. The air passing through the ventilation holes quickly removes heat and exits through a rectangular opening, achieving air circulation. This enables the rapid removal of heat from the heat dissipation fins and surrounding ventilation holes, thus cooling the GaN power supply and solving the current problems of poor heat dissipation performance and low heat dissipation efficiency in GaN power supplies.

[0017] 2. This invention, through the structural design of slots and inserts, allows for the removal and cleaning of the filter screen after prolonged use. Rotating the rotating plate separates the first and second magnetic sheets, positioning the rotating plate between the two baffles. Under the action of a spring, the two inserts move towards the center, disengaging from the slots and releasing the filter screen from its restraint. Upon installation after cleaning, the filter screen is placed on the flat plate according to the positioning groove and positioning block. Pulling down the first moving plate allows the two inserts to be inserted into the slots, positioning the rotating plate below the two baffles. Rotating the rotating plate brings the second magnetic sheet into contact with the first magnetic sheet, restraining the inserts within the slots and completing the installation. This achieves the function of quickly disassembling and installing the filter screen. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure from a first-view perspective of Embodiment 1;

[0020] Figure 2 This is a schematic diagram of the overall structure from a second perspective of Embodiment 1;

[0021] Figure 3 This is a schematic cross-sectional view of the shell in Embodiment 1;

[0022] Figure 4 This is a schematic diagram of the second partition structure in Embodiment 1;

[0023] Figure 5 This is a schematic diagram of the filter screen structure in Example 1;

[0024] Figure 6 This is a schematic diagram of the structure of the first fixed plate, the second movable plate, and the connecting plate in Embodiment 1;

[0025] Figure 7 This is a partial three-dimensional structural schematic diagram of Example 1;

[0026] Figure 8 This is a schematic diagram of the structure of the first and second magnetic sheets in Embodiment 1.

[0027] In the diagram: 1. Gallium nitride power supply body; 2. USB port; 3. Type-C port; 4. Housing; 5. Rectangular opening; 6. Fan; 7. Filter plate; 8. First partition; 9. Trapezoidal block; 10. Heat sink fins; 11. Heat dissipation holes; 12. Second partition; 13. Through-hole; 14. Flat plate; 15. First fixing plate; 16. T-shaped rod; 17. First moving plate; 18. Connecting rod; 19. Second moving plate; 20. Second fixing plate; 21. Guide rod; 22. Spring ; 23. Insert block; 24. Fixing block; 25. Slot; 26. Vertical plate; 27. Connecting plate; 28. Rotating column; 29. ​​Round block; 30. Rotating plate; 31. First magnetic piece; 32. Baffle; 33. Second magnetic piece; 34. Vertical block; 35. Strip-shaped opening; 36. L-shaped column; 37. Protective cover; 38. Square plate; 39. Threaded column; 40. Rotating block; 41. Threaded groove; 42. Positioning groove; 43. Positioning block; 44. First round hole; 45. Second round hole; 46. Third round hole. Detailed Implementation

[0028] 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.

[0029] Example 1

[0030] Please see Figures 1-8 As shown, a portable gallium nitride power supply includes a gallium nitride power supply body 1, which has two USB ports 2 and two Type-C ports 3, and a fast heat dissipation mechanism.

[0031] The rapid heat dissipation mechanism includes a housing 4 fixedly attached to a gallium nitride power supply body 1. The housing 4 has two rectangular openings 5. A fan 6 is fixedly attached to the inner wall of the housing 4, with the fan 6 facing one of the rectangular openings 5. The housing 4 has two filter plates 7, both facing the rectangular opening 5, and the area of ​​the filter plates 7 and the fan 6 is larger than the area of ​​the rectangular opening 5. A first partition 8 is fixedly attached to the inner wall of the gallium nitride power supply body 1 and the housing 4. A trapezoidal block 9 is fixedly attached to the gallium nitride power supply body 1. Multiple heat dissipation fins 10 are fixedly attached to the top and bottom of the gallium nitride power supply body 1. Multiple heat dissipation holes 11 are provided on the heat dissipation fins 10. A second partition 12 is fixedly attached to two of the heat dissipation fins 10, and the two second partitions 12 are fixedly connected to the inner wall of the housing 4. An opening 13 is provided between the housing 4, the second partitions 12, and the heat dissipation fins 10.

[0032] During operation, the GaN power supply unit 1 is small and portable. One end of the corresponding data cable is inserted into the USB port 2 or Type-C port 3, and the other end is plugged into an electronic device. The GaN power supply unit 1 will then function normally. During normal operation, the GaN power supply unit 1 will generate a significant amount of heat, which needs to be dissipated promptly. Otherwise, heat buildup can lead to overheating and even danger. The fan 6 is activated, blowing air into the housing 4 through the rectangular opening 5. The air is guided by the trapezoidal block 9 and directed towards the GaN power supply unit 1. At the top and bottom, the heat generated by the gallium nitride power supply body 1 is transferred to the outer shell of the gallium nitride power supply body 1. The heat is then transferred from the outer shell to the heat dissipation fins 10 and heat dissipation holes 11. The heat dissipation fins 10 and heat dissipation holes 11 dissipate into the air. The heat dissipation fins 10 and heat dissipation holes 11 increase the contact area between the gallium nitride power supply body 1 and the air, thereby enhancing the heat dissipation performance of the gallium nitride power supply body 1. The air can also carry away the heat around the heat dissipation fins 10 and heat dissipation holes 11. The air is exhausted from another rectangular opening 5 through the heat dissipation holes 11 and the vent 13, realizing air circulation and making the heat dissipation effect of the gallium nitride power supply body 1 better.

[0033] Two flat plates 14 are fixedly connected to the housing 4. The filter screen 7 is disposed on the flat plates 14. A first fixed plate 15 is fixedly connected to the housing 4. A T-shaped rod 16 is slidably inserted into the first fixed plate 15. A first movable plate 17 is fixedly connected to the bottom end of the T-shaped rod 16. Two connecting rods 18 are rotatably connected to the bottom of the first movable plate 17 via a pin. A second movable plate 19 is rotatably connected to one end of the connecting rod 18 via a pin. Two second fixed plates 20 are fixedly connected to the housing 4. A guide rod 21 is fixedly connected between the two second fixed plates 20. Two second movable plates 19 are slidably connected to the surface of the guide rod 21. A spring 22 is fixedly connected between the second fixed plate 20 and the second movable plate 19. The spring 22 is sleeved on the outside of the guide rod 21. An insert block 23 is fixedly connected to the second movable plate 19. A fixed block 24 is fixedly connected to the filter screen 7. A slot 25 is opened on the fixed block 24. The insert block 23 is inserted into the slot 25.

[0034] A vertical plate 26 is fixedly connected to the first movable plate 17, a connecting plate 27 is fixedly connected to the vertical plate 26, a rotating column 28 is rotatably connected to the connecting plate 27, two round blocks 29 are fixedly connected to the rotating column 28, a rotating plate 30 is fixedly connected to the bottom end of the rotating column 28, two first magnetic pieces 31 are fixedly connected to the top of the rotating plate 30, two baffles 32 are fixedly connected to the housing 4, and a second magnetic piece 33 is fixedly connected to the bottom of the baffle 32, with the second magnetic piece 33 in contact with the first magnetic piece 31;

[0035] During operation, after prolonged use, dust accumulates on the filter screen 7, affecting its heat dissipation performance. Rotating the rotating plate 30 prevents the first magnetic sheet 31 and the second magnetic sheet 33 from contacting each other. The rotating plate 30 is positioned between the two baffles 32. Under the action of the spring 22, the rotating plate 30 and the first moving plate 17 move upwards, disengaging the two insert blocks 23 from the slots 25. This allows the filter screen 7 to be removed from the housing 4. After cleaning, during installation, the filter screen 7 is placed according to the positioning slots 42 and positioning blocks 43. Placed on the flat plate 14, the first moving plate 17 and the rotating plate 30 are pulled down. The first moving plate 17 drives the two connecting rods 18 to move, and the connecting rods 18 drive the two second moving plates 19 to move to both sides. The second moving plates 19 drive the insert block 23 to be inserted into the slot 25, limiting the filter screen plate 7. At this time, the rotating plate 30 passes through the middle of the two baffles 32. Rotating the rotating plate 30 makes the first magnetic piece 31 contact the second magnetic piece 33, keeping the insert block 23 in the slot 25, thus completing the installation.

[0036] Two vertical blocks 34 are fixedly attached to the gallium nitride power supply body 1. Each vertical block 34 has a strip-shaped opening 35. An L-shaped post 36 is slidably connected inside the strip-shaped opening 35. A protective cover 37 is fixedly attached between the two L-shaped posts 36. A square plate 38 is fixedly attached to one end of each L-shaped post 36. A threaded post 39 is threadedly connected to the square plate 38. A screw block 40 is fixedly attached to one end of each threaded post 39. Two threaded grooves 41 are provided on the gallium nitride power supply body 1. The threaded grooves 41 are adapted to the threaded post 39.

[0037] When the GaN power supply unit 1 is not in use, the USB port 2 and the Type-C port 3 should be covered to prevent dust from entering. Pull the protective cover 37 upwards to cover the USB port 2 and the Type-C port 3, which can effectively prevent dust from entering. Rotate the screw block 40, which will drive the threaded post 39 to rotate and screw the threaded post 39 into the threaded groove 41 to limit the position of the protective cover 37.

[0038] The housing 4 has eight positioning slots 42, and four positioning blocks 43 are fixedly connected to each of the two filter screens 7. The positioning blocks 43 are inserted into the positioning slots 42.

[0039] During operation, when installing the filter screen 7, the positioning block 43 is aligned with the positioning groove 42 and inserted into it, so that the filter screen 7 can be positioned on the housing 4, and the insertion block 23 can be inserted into the slot 25.

[0040] The first fixing plate 15 has a first circular hole 44, and the T-shaped rod 16 slides through the first circular hole 44;

[0041] During operation, as the first movable plate 17 moves, the T-shaped rod 16 slides within the first circular hole 44, limiting the first movable plate 17 in the vertical direction.

[0042] Each of the two second movable plates 19 has a second circular hole 45, and the guide rod 21 slides through the two second circular holes 45;

[0043] During operation, as the insert 23 is inserted into or removed from the slot 25, the guide rod 21 slides within the second circular hole 45, limiting the second moving plate 19 in the horizontal direction.

[0044] The connecting plate 27 has a third circular hole 46, the rotating column 28 is rotatably connected in the third circular hole 46, and the two circular blocks 29 are in contact with the bottom and top of the connecting plate 27.

[0045] During operation, as the rotating column 28 rotates, it rotates within the third circular hole 46. By setting the circular block 29 to contact the bottom and top of the connecting plate 27, the rotating column 28 can be prevented from moving vertically relative to the connecting plate 27.

[0046] Working Principle: During use, the GaN power supply unit 1 is small and portable. One end of the corresponding data cable is inserted into the USB port 2 or Type-C port 3, and the other end is plugged into the electronic device. The GaN power supply unit 1 will then function normally. During normal operation, the GaN power supply unit 1 generates a significant amount of heat, which needs to be dissipated promptly. Otherwise, heat buildup can lead to overheating and even danger. The fan 6 is activated, blowing air into the housing 4 through the rectangular opening 5. The air is guided by the trapezoidal block 9 and directed towards the top and bottom of the GaN power supply unit 1. The generated heat is transferred to the outer casing of the gallium nitride power supply unit 1, and then from the outer casing to the heat dissipation fins 10 and heat dissipation holes 11. The heat dissipation fins 10 and heat dissipation holes 11 dissipate the heat into the air. The heat dissipation fins 10 and heat dissipation holes 11 increase the contact area between the gallium nitride power supply unit 1 and the air, enhancing the heat dissipation performance of the gallium nitride power supply unit 1. The air can also carry away the heat around the heat dissipation fins 10 and heat dissipation holes 11. The air is exhausted through the heat dissipation holes 11 and the opening 13 from another rectangular opening 5, realizing air circulation, which makes the heat dissipation effect of the gallium nitride power supply unit 1 better. When the filter plate 7 is used for a long time, dust will accumulate on the filter plate 7, affecting the heat dissipation performance. Rotating plate 30 prevents the first magnetic sheet 31 and the second magnetic sheet 33 from contacting each other. Rotating plate 30 is positioned between the two baffles 32. Under the action of spring 22, rotating plate 30 and the first moving plate 17 move upwards, causing the two insert blocks 23 to leave the slots 25. The filter screen 7 can then be removed from the housing 4. After cleaning, during installation, the filter screen 7 is placed on the flat plate 14 according to the positioning groove 42 and positioning block 43. Pulling down the first moving plate 17 and rotating plate 30 causes the first moving plate 17 to move the two connecting rods 18. The connecting rods 18 then move the two second moving plates 19 to the sides. The second moving plates 19 then insert the insert blocks 23 into the slots 25. The filter plate 7 is positioned, and the rotating plate 30 passes between the two baffles 32. Rotating the rotating plate 30 makes the first magnetic piece 31 contact the second magnetic piece 33, keeping the plug 23 inserted in the slot 25, thus completing the installation. When the gallium nitride power supply body 1 is not needed, the USB port 2 and the type-c port 3 need to be covered to prevent dust from entering. Pull the protective cover 37 upward to cover the USB port 2 and the type-c port 3, which can effectively prevent dust from entering. Rotate the rotating block 40, which drives the threaded post 39 to rotate, screwing the threaded post 39 into the threaded groove 41, thus positioning the protective cover 37.

[0047] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A portable gallium nitride (GaN) power supply, comprising a GaN power supply body (1), wherein the GaN power supply body (1) is provided with two USB ports (2), characterized in that: The gallium nitride power supply body (1) is provided with two type-c ports (3) and a fast heat dissipation mechanism. The rapid heat dissipation mechanism includes a housing (4) fixed to the gallium nitride power supply body (1). The housing (4) has two rectangular openings (5). A fan (6) is fixed to the inner wall of the housing (4), with the fan (6) facing one of the rectangular openings (5). The housing (4) has two filter plates (7), both facing the rectangular opening (5), and the area of ​​the filter plates (7) and the fan (6) is larger than the area of ​​the rectangular opening (5). The inner walls of the gallium nitride power supply body (1) and the housing (4) are... A first partition (8) is fixed to the wall, a trapezoidal block (9) is fixed to the gallium nitride power supply body (1), and multiple heat dissipation fins (10) are fixed to the top and bottom of the gallium nitride power supply body (1). Multiple heat dissipation holes (11) are opened on the heat dissipation fins (10), and a second partition (12) is fixed to two of the heat dissipation fins (10). The two second partitions (12) are fixedly connected to the inner wall of the shell (4), and an opening (13) is provided between the shell (4), the second partitions (12) and the heat dissipation fins (10).

2. The portable gallium nitride power supply according to claim 1, characterized in that: Two flat plates (14) are fixedly connected to the housing (4). The filter screen (7) is set on the flat plate (14). A first fixing plate (15) is fixedly connected to the housing (4). A T-shaped rod (16) is slidably inserted on the first fixing plate (15). A first moving plate (17) is fixedly connected to the bottom end of the T-shaped rod (16). Two connecting rods (18) are rotatably connected to the bottom of the first moving plate (17) through a pin. A second moving plate (19) is rotatably connected to one end of the connecting rod (18) through a pin. Two second fixing plates (2) are fixedly connected to the housing (4). 0), a guide rod (21) is fixed between the two second fixed plates (20), and two second movable plates (19) are slidably connected to the surface of the guide rod (21). A spring (22) is fixed between the second fixed plate (20) and the second movable plate (19). The spring (22) is sleeved on the outside of the guide rod (21). An insert (23) is fixed on the second movable plate (19). A fixing block (24) is fixed on the filter plate (7). A slot (25) is opened on the fixing block (24). The insert (23) is inserted into the slot (25).

3. A portable gallium nitride power supply according to claim 2, characterized in that: A vertical plate (26) is fixedly connected to the first movable plate (17), a connecting plate (27) is fixedly connected to the vertical plate (26), a rotating column (28) is rotatably connected to the connecting plate (27), two round blocks (29) are fixedly connected to the rotating column (28), a rotating plate (30) is fixedly connected to the bottom end of the rotating column (28), two first magnetic pieces (31) are fixedly connected to the top of the rotating plate (30), two baffles (32) are fixedly connected to the housing (4), a second magnetic piece (33) is fixedly connected to the bottom of the baffle (32), and the second magnetic piece (33) is in contact with the first magnetic piece (31).

4. A portable gallium nitride power supply according to claim 3, characterized in that: Two vertical blocks (34) are fixedly attached to the gallium nitride power supply body (1). A strip-shaped opening (35) is provided on the vertical block (34). An L-shaped column (36) is slidably connected in the strip-shaped opening (35). A protective cover (37) is fixedly connected between the two L-shaped columns (36). A square plate (38) is fixedly connected to one end of the L-shaped column (36). A threaded column (39) is threadedly connected to the square plate (38). A screw block (40) is fixedly connected to one end of the threaded column (39). Two threaded grooves (41) are provided on the gallium nitride power supply body (1). The threaded grooves (41) are adapted to the threaded column (39).

5. A portable gallium nitride power supply according to claim 4, characterized in that: The housing (4) has eight positioning slots (42), and four positioning blocks (43) are fixedly connected to each of the two filter screens (7). The positioning blocks (43) are inserted into the positioning slots (42).

6. A portable gallium nitride power supply according to claim 5, characterized in that: The first fixing plate (15) has a first circular hole (44), and the T-shaped rod (16) slides through the first circular hole (44).

7. A portable gallium nitride power supply according to claim 6, characterized in that: Each of the two second moving plates (19) has a second circular hole (45), and the guide rod (21) slides through the two second circular holes (45).

8. A portable gallium nitride power supply according to claim 7, characterized in that: The connecting plate (27) has a third circular hole (46), the rotating column (28) is rotatably connected in the third circular hole (46), and the two circular blocks (29) are in contact with the bottom and top of the connecting plate (27).

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