Permanent magnet direct current inductor

Abstract

The invention relates to the technical field of direct current inductors, and discloses a permanent magnet direct current inductor which comprises a circuit board, a mounting frame is mounted at the top of the circuit board, a transmission assembly is arranged at the top of the circuit board, an air guide assembly is arranged at the top of the circuit board, a heat dissipation assembly is arranged on the outer wall of the mounting frame, and a magnetic core is mounted in an inner cavity of the mounting frame. According to the permanent magnet direct current inductor, through the transmission assembly arranged at the bottom of the mounting frame, in the mechanical vibration process of the mounting frame, a rotating plate and a rotating plate can be pushed to rotate, so that a moving block and a sliding block can slide along the outer wall of a supporting rod, and then a supporting spring is compressed; at the moment, the inductor can be fixed and limited under the action of the supporting springs and the supporting columns, vibration of the inductor is prevented from being transmitted downwards, and the situation that the vibration generated by the inductor is transmitted downwards to the circuit board and the circuit board is affected due to the fact that a traditional inductor is directly and rigidly connected with the circuit board is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of direct current inductors, and in particular to a permanent magnet direct current inductor. Background Art

[0002] An inductor is a component that converts electrical energy into magnetic energy and stores it. Its structure is similar to a transformer, but it has only one winding. An inductor has a certain inductance, which only blocks changes in current. If no current flows through the inductor, it will attempt to block current flow when the circuit is connected. If current flows through the inductor, it will attempt to maintain the current flow when the circuit is disconnected. Inductors are also called chokes and dynamic reactors. Permanent magnet DC inductors are a type of inductor.

[0003] When in use, traditional inductor devices are often installed directly on the circuit board to connect the inductor to the circuit. During the use of the inductor, when the current passing through changes, the magnetic field inside the inductor will change, causing the winding to be affected by the electromagnetic force, which in turn causes the inductor to vibrate on the top of the circuit board. Traditional inductors are often directly fixed on the top of the circuit board. The vibration will be transmitted downward to the circuit board, causing the circuit board to be affected by the vibration, thereby affecting the normal use of the circuit board and the inductor. In addition, the inductor will generate a lot of heat during use. Traditional equipment lacks active heat dissipation for the inductor, resulting in a high temperature of the inductor, which affects the service life of the inductor. Summary of the Invention

[0004] The present invention provides a permanent magnet DC inductor, which solves the problems raised by the above background technology.

[0005] The present invention provides the following technical solution: a permanent magnet DC inductor, comprising a circuit board, a mounting frame installed on the top of the circuit board, a transmission assembly provided on the top of the circuit board, an air guide assembly provided on the top of the circuit board, a heat dissipation assembly provided on the outer wall of the mounting frame, a magnetic core installed in the inner cavity of the mounting frame, a coil installed on the outer wall of the magnetic core, and a support column fixedly mounted on the top of the circuit board.

[0006] As a preferred technical solution of the present invention: the transmission assembly includes a limiting rod, the outer wall of the limiting rod is rotatably connected to a rotating plate, the outer wall of the limiting rod is rotatably connected to a rotating plate, the outer wall of the rotating plate is rotatably connected to a slider, the outer wall of the rotating plate is rotatably connected to a moving block, a support rod is installed on the top of the circuit board, the outer wall of the support rod is movably sleeved with a support spring, the outer wall of the moving block is fixedly assembled with a fixed plate, and the outer wall of the slider is fixedly assembled with a connecting plate.

[0007] As a preferred technical solution of the present invention: the two ends of the outer wall of the support spring are respectively in contact with the outer walls of the moving block, the slider and the support rod, and the support spring is made of high carbon steel, and the slider and the moving block are respectively movably connected to the outer wall of the support rod.

[0008] As a preferred technical solution of the present invention: the gas guide assembly includes an air collecting cylinder, the inner cavity of the air collecting cylinder is movably connected to a movable rod, the outer wall of the movable rod is fixedly equipped with a piston plate, the outer wall of the piston plate is provided with an air hole, the outer wall of the piston plate is rotatably connected to a one-way valve plate, and the outer wall of the air collecting cylinder is fixedly equipped with a connecting pipe.

[0009] As a preferred technical solution of the present invention: the outer wall of the movable rod is connected to the outer wall of the connecting plate, the outer wall diameter of the piston plate is adapted to the inner wall diameter of the gas collecting cylinder, there are two movable rods, and the two movable rods are movably sleeved on both ends of the inner cavity of the gas collecting cylinder, and the outer wall shape of the one-way valve plate is larger than the inner wall shape of the air vent.

[0010] As a preferred technical solution of the present invention: the heat dissipation assembly includes a mounting frame, the inner cavity of the mounting frame is installed with a heat conducting plate, the outer wall of the heat conducting plate is fixedly equipped with a heat sink, the inner cavity of the mounting frame is rotatably connected to a rotating shaft, the outer wall of the rotating shaft is fixedly equipped with a heat dissipation fan, the outer wall of the rotating shaft is fixedly equipped with an air guide impeller, the outer wall of the air guide impeller is fixedly equipped with blades, the outer wall of the mounting frame is fixedly equipped with a sealing box, and the outer wall of the sealing box is fixedly equipped with an air intake box.

[0011] As a preferred technical solution of the present invention: the outer wall of the heat conduction plate is in contact with the outer wall of the magnetic core, and the heat conduction plate and the heat sink are both made of metallic copper, the inner cavity of the air intake box is connected to the inner cavity of the sealing box, the outer wall of the rotating shaft passes through the inner cavity of the sealing box, the air guide impeller is rotatably connected to the inner cavity of the sealing box, and the installation position of the cooling fan corresponds to the installation position of the heat sink.

[0012] As a preferred technical solution of the present invention: the connecting pipe is made of natural rubber, the inner cavity of the connecting pipe is connected to the inner cavity of the gas collecting cylinder, and the connecting pipe is installed in the middle of the outer wall of the gas collecting cylinder.

[0013] As a preferred technical solution of the present invention: the outer wall of the support column passes through the bottom of the mounting frame, the bottom of the mounting frame is connected to the top of the limiting rod, and the top of the circuit board is connected to the outer wall of the gas collecting cylinder.

[0014] As a preferred technical solution of the present invention: the inner wall diameter of the sealing box is larger than the outer wall diameter of the air guide impeller, the blades are made of stainless steel, and the inner cavity of the air intake box is connected to the inner cavity of the connecting pipe.

[0015] The present invention has the following beneficial effects:

[0016] 1. This permanent magnet DC inductor, through the transmission assembly provided at the bottom of the mounting frame, causes the mounting frame to vibrate under the action of electromagnetic force. During the mechanical vibration of the mounting frame, it drives the rotation of the rotating plate and the rotating plate, thereby enabling the moving block and the slider to slide along the outer wall of the support rod, thereby compressing the support spring. At this time, the support spring and the support column can fix and restrict the inductor, and prevent the vibration of the inductor from being transmitted downward, thereby avoiding the rigid connection between the traditional inductor and the circuit board, which causes the vibration generated by the inductor to be transmitted downward to the circuit board and affect the circuit board.

[0017] 2. The permanent magnet DC inductor has a connecting plate provided on the outer wall of the slider. As the slider moves, the connecting plate moves, thereby driving the movement of the movable rod and the piston plate. During the reciprocating motion of the piston plate, the one-way valve plate rotates, allowing external air to enter the air collecting cylinder. The air in the air collecting cylinder cannot escape outward, thereby continuously ventilating the air intake box, thereby driving the air guide impeller, causing the air guide impeller to drive the rotation of the rotating shaft, and causing the heat dissipation fan to rotate, thereby accelerating the circulation of air around the heat sink, and assisting in cooling the magnetic core and coil under the action of the heat sink and the heat conduction plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the circuit board structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the support column structure of the present invention;

[0021] Figure 4 Schematic diagram of the limiting rod structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the gas collecting cylinder of the present invention;

[0023] Figure 6 This is a schematic diagram of the piston plate structure of the present invention;

[0024] Figure 7 This is a schematic diagram of the cross-sectional structure of the mounting frame of the present invention;

[0025] Figure 8 Schematic diagram of the heat conducting plate structure of the present invention;

[0026] Figure 9 This is a schematic diagram of the structure of the air guide impeller of the present invention;

[0027] Figure 10 This is a schematic diagram of the air guide blade structure of the present invention.

[0028] In the figure: 1. Circuit board; 2. Mounting frame; 3. Transmission assembly; 4. Air guide assembly; 5. Heat dissipation assembly; 6. Magnetic core; 7. Coil; 8. Support column;

[0029] 301, limit rod; 302, rotating plate; 303, rotating plate; 304, moving block; 305, slider; 306, support rod; 307, support spring; 308, connecting plate; 309, fixed plate;

[0030] 401, gas collecting cylinder; 402, movable rod; 403, piston plate; 404, air vent; 405, one-way valve plate; 406, connecting pipe;

[0031] 501. Mounting frame; 502. Heat conduction plate; 503. Heat sink; 504. Rotating shaft; 505. Cooling fan; 506. Air guide impeller; 507. Blades; 508. Sealing box; 509. Air intake box. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1 - Figure 10 A permanent magnet DC inductor includes a circuit board 1, a mounting frame 2 is installed on the top of the circuit board 1, a transmission component 3 is provided on the top of the circuit board 1, an air guide component 4 is provided on the top of the circuit board 1, a heat dissipation component 5 is provided on the outer wall of the mounting frame 2, a magnetic core 6 is installed in the inner cavity of the mounting frame 2, a coil 7 is installed on the outer wall of the magnetic core 6, and a support column 8 is fixedly assembled on the top of the circuit board 1.

[0034] In the above structure, the mounting frame 2 is arranged on the top of the circuit board 1, and the magnetic core 6 is arranged in the inner cavity of the mounting frame 2. Under the action of the magnetic core 6 and the coil 7, an inductor is formed, thereby removing the filtering in the circuit, thereby providing a stable DC power supply for the electronic device and ensuring the stable operation of the circuit.

[0035] In a preferred embodiment, the transmission assembly 3 includes a limit rod 301, the outer wall of the limit rod 301 is rotatably connected to a rotating plate 302, the outer wall of the limit rod 301 is rotatably connected to a rotating plate 303, the outer wall of the rotating plate 303 is rotatably connected to a slider 305, the outer wall of the rotating plate 302 is rotatably connected to a moving block 304, a support rod 306 is installed on the top of the circuit board 1, the outer wall of the support rod 306 is movably sleeved with a support spring 307, the outer wall of the moving block 304 is fixedly assembled with a fixing plate 309, and the outer wall of the slider 305 is fixedly assembled with a connecting plate 308;

[0036] In the above structure, through the setting of the limit rod 301, and the rotating plate 303 and the moving block 304 set on the outer wall of the limit rod 301, as the mounting frame 2 is used, the electromagnetic force generated when the current in the circuit changes will affect the mounting frame 2, causing the mounting frame 2 to vibrate. At this time, as the mounting frame 2 moves up and down, the rotating plate 303 and the rotating plate 302 will be driven, causing the angle between the rotating plate 303 and the rotating plate 302 to change.

[0037] In a preferred embodiment, the outer ends of the support spring 307 are in contact with the outer walls of the moving block 304, the slider 305 and the support rod 306 respectively, and the support spring 307 is made of high carbon steel, and the slider 305 and the moving block 304 are movably sleeved on the outer walls of the support rod 306 respectively;

[0038] In the above structure, by connecting the top of the limit rod 301 with the bottom of the mounting bracket 2, when the mounting bracket 2 vibrates under the influence of electromagnetic force, the vibration can be transmitted downward to the outer wall of the limit rod 301, so that the limit rod 301 can promote the change of the angle between the rotating plate 303 and the rotating plate 302, and compress the support springs 307 at both ends of the outer wall of the support rod 306. When the mounting bracket 2 is in a stationary state, it can support the moving block 304 and the slider 305 under the action of the support springs 307.

[0039] In a preferred embodiment, the gas guide assembly 4 includes a gas collecting cylinder 401, the inner cavity of the gas collecting cylinder 401 is movably connected to a movable rod 402, the outer wall of the movable rod 402 is fixedly mounted with a piston plate 403, the outer wall of the piston plate 403 is provided with a vent hole 404, the outer wall of the piston plate 403 is rotatably connected to a one-way valve plate 405, and the outer wall of the gas collecting cylinder 401 is fixedly mounted with a connecting pipe 406;

[0040] In the above structure, by providing a movable rod 402 in the inner cavity of the gas collecting cylinder 401 and a piston plate 403 on the outer wall of the movable rod 402, since the outer wall of the movable rod 402 is connected to the outer wall of the connecting plate 308, as the slider 305 and the connecting plate 308 move, the movable rod 402 will also reciprocate in the inner cavity of the gas collecting cylinder 401. During the reciprocating motion of the movable rod 402, gas will be continuously supplied to the inner cavity of the gas collecting cylinder 401 under the action of the piston plate 403.

[0041] In a preferred embodiment, the outer wall of the movable rod 402 is connected to the outer wall of the connecting plate 308, the outer wall diameter of the piston plate 403 is adapted to the inner wall diameter of the gas collecting cylinder 401, there are two movable rods 402, and the two movable rods 402 are movably connected to the two ends of the inner cavity of the gas collecting cylinder 401, and the outer wall shape of the one-way valve plate 405 is larger than the inner wall shape of the air vent 404;

[0042] In the above structure, through the movable rod 402 and the piston plate 403 arranged in the inner cavity of the air collecting cylinder 401, during the continuous reciprocating movement of the movable rod 402 and the piston plate 403, air is continuously supplied to the inner cavity of the air collecting cylinder 401, and the air enters the connecting pipe 406 along the inner cavity of the air collecting cylinder 401, and then under the action of the connecting pipe 406, the air is pushed into the inner cavity of the air inlet box 509, and drives the rotating shaft 504 in the inner cavity of the air guide impeller 506, and the one-way valve plate 405 arranged on the outer wall of the air vent 404 can only rotate in one direction.

[0043] In a preferred embodiment, the heat dissipation assembly 5 includes a mounting frame 501, a heat conducting plate 502 is mounted on the inner cavity of the mounting frame 2, a heat sink 503 is fixedly mounted on the outer wall of the heat conducting plate 502, a rotating shaft 504 is rotatably connected to the inner cavity of the mounting frame 501, a heat dissipation fan 505 is fixedly mounted on the outer wall of the rotating shaft 504, an air guide impeller 506 is fixedly mounted on the outer wall of the rotating shaft 504, a blade 507 is fixedly mounted on the outer wall of the air guide impeller 506, a sealing box 508 is fixedly mounted on the outer wall of the mounting frame 501, and an air inlet box 509 is fixedly mounted on the outer wall of the sealing box 508;

[0044] In the above structure, by installing the heat conducting plate 502 and the heat sink 503 on the outer wall of the mounting frame 2, during the use of the magnetic core 6 and the coil 7, the outer wall of the heat conducting plate 502 fits with the outer walls of the magnetic core 6 and the coil 7, so that the heat generated by the magnetic core 6 and the coil 7 during operation can be transferred to the heat conducting plate 502 and the heat sink 503, and the generated heat is released outward through the heat conducting plate 502 and the heat sink 503, thereby playing a role in assisting the heat dissipation of the magnetic core 6 and the coil 7.

[0045] In a preferred embodiment, the outer wall of the heat conducting plate 502 contacts the outer wall of the magnetic core 6, and the heat conducting plate 502 and the heat sink 503 are both made of metallic copper. The inner cavity of the air inlet box 509 communicates with the inner cavity of the sealing box 508. The outer wall of the rotating shaft 504 passes through the inner cavity of the sealing box 508. The air guide impeller 506 is rotatably connected to the inner cavity of the sealing box 508. The installation position of the cooling fan 505 corresponds to the installation position of the heat sink 503.

[0046] In the above structure, through the heat dissipation fan 505 and the air guide impeller 506 arranged on the outer wall of the rotating shaft 504, during the reciprocating motion of the movable rod 402, the gas in the inner cavity of the gas collecting cylinder 401 is supplied to the inner cavity of the connecting pipe 406, and enters the inner cavity of the air inlet box 509 along the inner cavity of the connecting pipe 406, thereby driving the air guide impeller 506, so that the rotating shaft 504 rotates with the rotation of the air guide impeller 506, so as to drive the rotation of the heat dissipation fan 505, and during the rotation of the heat dissipation fan 505, take away the heat around the heat sink 503 and the heat conduction plate 502.

[0047] In a preferred embodiment, the connecting tube 406 is made of natural rubber, the inner cavity of the connecting tube 406 is connected to the inner cavity of the gas collecting cylinder 401, and the connecting tube 406 is installed in the middle of the outer wall of the gas collecting cylinder 401;

[0048] In the above structure, through the connecting pipe 406 set in the middle of the outer wall of the gas collecting cylinder 401, when the movable rod 402 moves toward the middle of the gas collecting cylinder 401, the gas will be squeezed into the middle of the gas collecting cylinder 401 and enter the inner cavity of the connecting pipe 406. When the movable rod 402 moves toward the two ends of the gas collecting cylinder 401, the one-way valve plate 405 will open, so that the air in the inner cavity of the connecting pipe 406 will not be drawn out, and then in the process of continuous reciprocating movement of the movable rod 402, the air in the inner cavity of the connecting pipe 406 will not be drawn out, and only gas will be supplied to the inner cavity of the connecting pipe 406.

[0049] In a preferred embodiment, the outer wall of the support column 8 passes through the bottom of the mounting frame 2, the bottom of the mounting frame 2 is connected to the top of the limiting rod 301, and the top of the circuit board 1 is connected to the outer wall of the gas collecting cylinder 401;

[0050] In the above structure, the support column 8 is set on the top of the circuit board 1, which can limit the mounting frame 2 so that the mounting frame 2 can only float up and down on the top of the circuit board 1, thereby driving the rotating plate 303 and the rotating plate 302, and then pulling the movable rod 402 to move.

[0051] In a preferred embodiment, the inner diameter of the sealing box 508 is larger than the outer diameter of the air guide impeller 506 , the blades 507 are made of stainless steel, and the inner cavity of the air inlet box 509 is connected to the inner cavity of the connecting pipe 406 ;

[0052] In the above structure, the sealing box 508 is provided on the outer wall of the mounting frame 501, and the air guide impeller 506 can be sealed under the action of the sealing box 508, so that the air guide impeller 506 can be better driven by the gas in the inner cavity of the sealing box 508, so that the air guide impeller 506 and the rotating shaft 504 rotate in the inner cavity of the sealing box 508, thereby realizing the driving of the heat dissipation fan 505, and the heat dissipation fan 505 dissipates the heat around the heat sink 503 and the heat conducting plate 502 outward during the rotation process, thereby playing an auxiliary cooling role for the magnetic core 6 and the coil 7.

[0053] Working principle: During the use of the above-mentioned device, the mounting bracket 2 is installed on the top of the circuit board 1. During the use of the mounting bracket 2, as the current in the circuit changes, the magnetic field inside the magnetic core 6 will change, thereby causing the coil 7 to be affected by the electromagnetic force. Under the action of the electromagnetic force, the mounting bracket 2 will float on the top of the circuit board 1, and as the current continues to change, the mounting bracket 2 will vibrate on the top of the circuit board 1, thereby causing the mounting bracket 2 to move up and down along the outer wall of the support column 8. As the mounting bracket 2 continues to vibrate, the vibration will be transmitted downward to the limit rod 301, causing the limit rod 301 to move downward, thereby pushing the support angle between the rotating plate 303 and the rotating plate 302 to change, thereby pushing the slider 305 and The movement of the moving block 304 causes the slider 305 and the moving block 304 to move along the outer wall of the support rod 306. During the movement of the slider 305 and the moving block 304, the support spring 307 is compressed, and at this time the connecting plate 308 moves with the movement of the slider 305. Since the outer wall of the connecting plate 308 is connected to the outer wall of the movable rod 402, the movable rod 402 moves with the movement of the connecting plate 308. When the movable rod 402 moves, it pulls the piston plate 403, causing the piston plate 403 to reciprocate in the inner cavity of the gas collecting cylinder 401. When the piston plate 403 moves toward the two ends of the gas collecting cylinder 401, the one-way valve plate 405 rotates, causing the inner cavity of the air vent 404 to be opened, so that the gas collecting cylinder 401 can be opened. The air outside the cylinder 401 will enter the inner cavity of the air collecting cylinder 401. When the piston plate 403 moves to the middle position of the air collecting cylinder 401, the one-way valve plate 405 will fit on the outer wall of the piston plate 403 and cannot rotate, thereby blocking the inner cavity of the air vent 404. Then, as the movable rod 402 and the piston plate 403 move, the external air is squeezed into the inner cavity of the air collecting cylinder 401, and the air is transferred upward through the connecting pipe 406, so that the air enters the inner cavity of the air inlet box 509 and is released into the inner cavity of the sealing box 508 along the inner cavity of the air inlet box 509. At this time, the air guide impeller 506 in the inner cavity of the sealing box 508 can be driven by the action of the air, so that the air guide impeller 506 drives the rotation of the rotating shaft 504, and then The heat dissipation fan 505 is driven by the action of the rotating shaft 504, so that the heat dissipation fan 505 rotates in the inner cavity of the installation frame 501. During the use of the installation frame 2, the magnetic core 6 and the coil 7 will continuously generate heat, and the heat will be transferred to the air through the heat conducting plate 502 and the heat dissipation fin 503 provided on the outer wall of the magnetic core 6 and the coil 7 under the action of the heat conducting plate 502 and the heat dissipation fin 503. At this time, as the heat dissipation fan 505 rotates, the heat dissipation fan 505 will take away the heat in the air around the heat dissipation fin 503, accelerate the flow rate of the surrounding air, thereby realizing auxiliary heat dissipation for the use of the installation frame 2, and during the up and down movement of the installation frame 2, under the buffering of the rotating plate 303 and the rotating plate 302 as well as the slider 305 and the moving block 304,The vibration will not be transmitted downward, thus avoiding affecting the normal use of the circuit board 1.

[0054] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0055] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A permanent magnet DC inductor, comprising a circuit board (1), characterized in that: A mounting frame (2) is installed on the top of the circuit board (1), a transmission assembly (3) is provided on the top of the circuit board (1), an air guide assembly (4) is provided on the top of the circuit board (1), a heat dissipation assembly (5) is provided on the outer wall of the mounting frame (2), a magnetic core (6) is installed in the inner cavity of the mounting frame (2), a coil (7) is installed on the outer wall of the magnetic core (6), and a support column (8) is fixedly mounted on the top of the circuit board (1).

2. A permanent magnet DC inductor according to claim 1, characterized in that: The transmission assembly (3) comprises a limiting rod (301), the outer wall of the limiting rod (301) is rotatably connected to a rotating plate (302), the outer wall of the limiting rod (301) is rotatably connected to a rotating plate (303), the outer wall of the rotating plate (303) is rotatably connected to a slider (305), the outer wall of the rotating plate (302) is rotatably connected to a moving block (304), a support rod (306) is mounted on the top of the circuit board (1), the outer wall of the support rod (306) is movably sleeved with a supporting spring (307), the outer wall of the moving block (304) is fixedly assembled with a fixing plate (309), and the outer wall of the slider (305) is fixedly assembled with a connecting plate (308).

3. The permanent magnet DC inductor according to claim 2, wherein: The two ends of the outer wall of the support spring (307) are in contact with the outer walls of the moving block (304), the slider (305) and the support rod (306) respectively, and the support spring (307) is made of high carbon steel, and the slider (305) and the moving block (304) are movably sleeved on the outer wall of the support rod (306) respectively.

4. A permanent magnet DC inductor according to claim 3, characterized in that: The gas guide assembly (4) includes a gas collecting cylinder (401), the inner cavity of the gas collecting cylinder (401) is movably connected to a movable rod (402), the outer wall of the movable rod (402) is fixedly equipped with a piston plate (403), the outer wall of the piston plate (403) is provided with an air vent (404), the outer wall of the piston plate (403) is rotatably connected to a one-way valve plate (405), and the outer wall of the gas collecting cylinder (401) is fixedly equipped with a connecting pipe (406).

5. The permanent magnet DC inductor according to claim 4, characterized in that: The outer wall of the movable rod (402) is connected to the outer wall of the connecting plate (308), the outer wall diameter of the piston plate (403) is adapted to the inner wall diameter of the gas collecting cylinder (401), there are two movable rods (402), and the two movable rods (402) are movably sleeved on both ends of the inner cavity of the gas collecting cylinder (401), and the outer wall shape of the one-way valve plate (405) is larger than the inner wall shape of the air vent (404).

6. The permanent magnet DC inductor according to claim 4, characterized in that: The heat dissipation assembly (5) comprises a mounting frame (501), a heat conducting plate (502) is mounted on the inner cavity of the mounting frame (2), a heat sink (503) is fixedly mounted on the outer wall of the heat conducting plate (502), the inner cavity of the mounting frame (501) is rotatably connected to a rotating shaft (504), a heat dissipation fan (505) is fixedly mounted on the outer wall of the rotating shaft (504), an air guide impeller (506) is fixedly mounted on the outer wall of the air guide impeller (506), blades (507) are fixedly mounted on the outer wall of the air guide impeller (506), a sealing box (508) is fixedly mounted on the outer wall of the sealing box (508), and an air inlet box (509) is fixedly mounted on the outer wall of the sealing box (508).

7. The permanent magnet DC inductor according to claim 6, characterized in that: The outer wall of the heat conducting plate (502) contacts the outer wall of the magnetic core (6), and the heat conducting plate (502) and the heat sink (503) are both made of metal copper. The inner cavity of the air inlet box (509) is communicated with the inner cavity of the sealing box (508). The outer wall of the rotating shaft (504) passes through the inner cavity of the sealing box (508). The air guide impeller (506) is rotatably connected to the inner cavity of the sealing box (508). The installation position of the heat dissipation fan (505) corresponds to the installation position of the heat sink (503).

8. The permanent magnet DC inductor according to claim 5, characterized in that: The connecting pipe (406) is made of natural rubber, the inner cavity of the connecting pipe (406) is communicated with the inner cavity of the gas collecting cylinder (401), and the connecting pipe (406) is installed in the middle of the outer wall of the gas collecting cylinder (401).

9. The permanent magnet DC inductor according to claim 4, characterized in that: The outer wall of the support column (8) passes through the bottom of the mounting frame (2), the bottom of the mounting frame (2) is connected to the top of the limiting rod (301), and the top of the circuit board (1) is connected to the outer wall of the gas collecting cylinder (401).

10. The permanent magnet DC inductor according to claim 7, characterized in that: The inner wall diameter of the sealing box (508) is larger than the outer wall diameter of the air guide impeller (506), the blades (507) are made of stainless steel, and the inner cavity of the air inlet box (509) is connected to the inner cavity of the connecting pipe (406).

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