A high current power inductor and its preparation method

Abstract

The present invention discloses a high-current power inductor and a preparation method thereof, belonging to the field of inductor technology. A high-current power inductor comprises a substrate, and further comprises: a rod-shaped battery core fixedly connected to the substrate, wherein a coil is fixedly wound around the outer wall of the rod-shaped battery core, and both ends of the coil extend to the lower end surface of the substrate; a vertical tube fixedly connected to the substrate, and the rod-shaped battery core and the coil are both located inside the vertical tube, wherein a spiral guide plate is fixedly connected to the outer wall of the rod-shaped battery core, and the outer wall of the spiral guide plate is affixed to the inner wall of the vertical tube, and a spiral groove is formed between the spiral guide plate and the outer wall of the rod-shaped battery core, and the coil is arranged in the spiral groove, and a ventilation component is provided on the top of the vertical tube; the present invention can actively dissipate heat for the coil and the rod-shaped battery core, thereby improving the heat dissipation efficiency of the inductor, making the inductor work more stably and having a longer service life.

Description

Technical Field

[0001] The present invention relates to the technical field of inductors, and in particular to a high-current power inductor and a preparation method thereof. Background Art

[0002] Inductors are common electronic components whose operating principle is based on the law of electromagnetic induction. They typically consist of a coil of wire, sometimes containing an iron core or other magnetic material to enhance the magnetic field. High-current power inductors are specifically designed to handle high currents and minimize losses through their construction and material selection. They are commonly used in power converters, DC-DC converters, inverters, and other applications requiring high efficiency and reliability.

[0003] In the prior art, since high-current power inductors have a large current passing through them during use, both the coil and the battery core will generate a large amount of heat after long-term operation. In the prior art, heat dissipation is mainly completed passively, and the heat dissipation efficiency is low, which will greatly reduce the operating stability and service life of the high-current power inductor. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that high current power inductors easily generate a large amount of heat during operation, thereby affecting stability, and to propose a high current power inductor and a preparation method thereof.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A high-current power inductor comprises a substrate and further comprising: a rod-shaped battery core fixedly connected to the substrate, wherein a coil is fixedly wound around the outer wall of the rod-shaped battery core, and both ends of the coil extend to the lower end surface of the substrate; a vertical tube fixedly connected to the substrate, and the rod-shaped battery core and the coil are both located within the vertical tube, wherein a spiral guide plate is fixedly connected to the outer wall of the rod-shaped battery core, the outer wall of the spiral guide plate is affixed to the inner wall of the vertical tube, and a spiral groove is formed between the spiral guide plate and the outer wall of the rod-shaped battery core, the coil is disposed within the spiral groove, and a ventilation component is provided at the top of the vertical tube.

[0007] In order to facilitate efficient heat dissipation of the inductor, preferably, the ventilation component includes a drive motor fixedly mounted on the upper port of the vertical pipe, the output end of the drive motor is fixedly mounted with a drive shaft, the outer wall of the drive shaft is fixedly mounted with a plurality of circumferentially distributed fan blades, and the lower end of the rod-shaped battery core is provided with an exhaust portion.

[0008] In order to improve the heat dissipation efficiency of the rod-shaped battery cell, the exhaust portion further includes a cavity arranged inside the rod-shaped battery cell, and the lower end of the rod-shaped battery cell is provided with an exhaust port connected to the cavity, wherein the outer wall of the rod-shaped battery cell is provided with a plurality of air inlet holes connected to the cavity, and the input ends of the plurality of air inlet holes are all facing the spiral groove.

[0009] In order to clean the cavity of the rod-shaped battery cell, further, a vertical shaft connected to the drive shaft is provided in the cavity, and multiple groups of brushes distributed circumferentially are fixed on the outer wall of the vertical shaft, and the ends of the multiple groups of brushes are all attached to the inner wall of the cavity.

[0010] In order to make the brush move up and down reciprocatingly, further, the lower end of the driving shaft is provided with a sliding hole, a piston rod is longitudinally slidably installed in the sliding hole, the vertical shaft is fixedly connected to the lower end of the piston rod, and the vertical shaft is provided with a lifting part that drives the piston rod to slide up and down.

[0011] In order to make the vertical shaft move up and down reciprocatingly, the lifting part further includes a mounting plate fixedly connected to the upper end of the vertical shaft, a roller is rotatably mounted on the mounting plate, a plurality of circumferentially distributed protrusions are fixedly connected to the inner top of the cavity, and a spring is installed between the piston rod and the inner top of the sliding hole.

[0012] In order to filter out some of the dust in the air, further, the upper end of the vertical pipe is fixedly connected to a conical filter screen that is arched upward, the top of the conical filter screen is fixedly connected to a flat plate, and the drive motor is fixedly installed at the lower end of the flat plate.

[0013] In order to back-blow and clean the conical filter, further, a transverse tube is fixedly connected to the fan blade, a nozzle facing the lower end surface of the conical filter is fixedly connected to the transverse tube, and an air supply portion arched towards the nozzle is provided on the drive shaft.

[0014] In order to intermittently blow air into the transverse tube, the air supply part further includes an air suction hole arranged on the outer wall of the drive shaft, the air suction hole is connected to the sliding hole, the input end of the transverse tube extends into the sliding hole, and a one-way valve is fixedly installed in the air suction hole and the transverse tube.

[0015] A method for preparing a high current power inductor, the operating steps are as follows:

[0016] Step 1: Fix the rod-shaped battery cell to the substrate;

[0017] Step 2: Fix the spiral guide plate to the outer wall of the rod-shaped battery cell;

[0018] Step 3: Fix the coil to the outer wall of the rod-shaped battery cell in a spiral manner, and make the end of the coil pass through the lower end of the substrate;

[0019] Step 4: Fix the vertical pipe to the base plate;

[0020] Step 5: Install the drive shaft on the output shaft of the drive motor and install the fan blades on the outer wall of the drive shaft;

[0021] Step 6: Install the drive motor to the bottom of the flat plate and secure the conical filter to the upper port of the vertical pipe.

[0022] Compared with the prior art, the present invention provides a high current power inductor with the following features:

[0023] Beneficial effects:

[0024] 1. This high-current power inductor drives the drive shaft to rotate through the drive motor, and the fan blades blow air into the vertical tube, thereby actively dissipating the heat of the coil and rod-shaped battery core, improving the heat dissipation efficiency of the inductor, making the inductor work more stably and extending its service life.

[0025] 2. This high-current power inductor, through the action of the spiral guide plate and the vertical tube, the downward airflow will flow downward along the spiral groove, thereby significantly increasing the contact area and time between the air and the coil and the rod-shaped battery core, thereby significantly improving the heat dissipation efficiency of the inductor.

[0026] 3. This high-current power inductor allows the airflow to enter the cavity through the air inlet and then be discharged through the exhaust port at the bottom of the cavity. When the airflow passes through the cavity, it can dissipate heat inside the rod-shaped battery cell, thereby further improving the heat dissipation efficiency of the rod-shaped battery cell.

[0027] 4. This high-current power inductor drives the vertical axis to rotate through the driving shaft. The vertical axis drives the brush to sweep along the inner wall of the cavity, thereby cleaning the dust in the cavity and maintaining good heat dissipation efficiency of the rod-shaped battery cell. When the brush blocks the air inlet, the airflow discharged from the air inlet will blow towards the brush, thereby automatically completing the self-cleaning work of the brush, which can indirectly ensure the cleanliness of the cavity and maintain high heat dissipation efficiency of the rod-shaped battery cell.

[0028] 5. The high-current power inductor will cause the piston rod and the vertical axis to move up and down through the continuously rolling roller, thereby driving the brush to move up and down on the inner wall of the cavity. On the one hand, it improves the cleaning effect of the brush, and on the other hand, it can make the dust on the brush fall more easily.

[0029] 6. This high-current power inductor can filter out most of the dust in the air through the conical filter at the upper port of the vertical tube, making the spiral guide plate, rod-shaped battery cell and coil less likely to be contaminated by dust, thereby maintaining the heat dissipation efficiency of the rod-shaped battery cell and coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1This is a schematic diagram of the first-perspective axonometric structure of a high-current power inductor proposed by the present invention;

[0031] Figure 2 This is a schematic diagram of the axonometric structure of a high current power inductor proposed by the present invention from a second perspective;

[0032] Figure 3 This is a schematic diagram of the partial isometric structure of a high current power inductor proposed by the present invention;

[0033] Figure 4 This is a schematic diagram of a partial cross-section structure of a high current power inductor proposed by the present invention;

[0034] Figure 5 This is a schematic diagram of the cross-sectional structure of a rod-shaped battery cell of a high-current power inductor proposed by the present invention;

[0035] Figure 6 This is a schematic diagram of the axonometric structure of a fan blade of a high current power inductor proposed by the present invention;

[0036] Figure 7 A high current power inductor proposed by the present invention Figure 5 Schematic diagram of the structure of part A;

[0037] Figure 8 This is a schematic diagram of the isometric structure of a vertical tube of a high-current power inductor proposed by the present invention.

[0038] In the figure: 1. Base plate; 2. Rod-shaped battery cell; 3. Coil; 4. Vertical tube; 5. Drive motor; 6. Drive shaft; 7. Fan blade; 8. Spiral guide plate; 9. Air inlet; 10. Exhaust port; 11. Cavity; 12. Vertical axis; 13. Brush; 14. Slide hole; 15. Piston rod; 16. Horizontal tube; 17. Intake hole; 18. Spring; 19. Nozzle; 20. Roller; 21. Bump; 22. Mounting plate; 23. Conical filter; 24. Flat plate; 25. Heat sink; 26. Strip groove; 27. Spiral groove. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0041] Example 1:

[0042] Reference Figures 1-8 A high-current power inductor includes a substrate 1 and: a rod-shaped battery core 2, fixedly connected to the substrate 1, the material of the rod-shaped battery core 2 is metal, wherein the outer wall of the rod-shaped battery core 2 is fixedly wound with a coil 3, and both ends of the coil 3 extend to the lower end surface of the substrate 1; a vertical tube 4, fixedly connected to the substrate 1, and the rod-shaped battery core 2 and the coil 3 are both located in the vertical tube 4, wherein the outer wall of the rod-shaped battery core 2 is fixedly connected with a spiral guide plate 8, the outer wall of the spiral guide plate 8 is attached to the inner wall of the vertical tube 4, and a spiral groove 27 is formed between the spiral guide plate 8 and the outer wall of the rod-shaped battery core 2, the coil 3 is arranged in the spiral groove 27, and a ventilation component is provided on the top of the vertical tube 4.

[0043] Specifically, when in use, the ventilation component can blow air into the vertical tube 4, thereby actively dissipating the heat of the coil 3 and the rod-shaped battery core 2 in the vertical tube 4, thereby improving the heat dissipation efficiency of the inductor, making the inductor work more stably and extending its service life. Due to the action of the spiral guide plate 8 and the vertical tube 4, the downward airflow will flow downward along the spiral groove 27, thereby significantly increasing the contact area and time between the air and the coil 3 and the rod-shaped battery core 2, thereby significantly improving the heat dissipation efficiency of the inductor.

[0044] The outer wall of the spiral guide plate 8 is fixedly connected to a heat sink 25 that passes through the vertical tube 4. The outer wall of the vertical tube 4 is provided with a strip groove 26 that cooperates with the heat sink 25. Therefore, when in use, the spiral guide plate 8 transfers heat to the heat sink 25, and the heat sink 25 dissipates heat from the spiral guide plate 8 and the rod-shaped battery cell 2 through passive heat dissipation, significantly improving the heat dissipation efficiency of the rod-shaped battery cell 2 and making the operation of the inductor more stable.

[0045] Example 2:

[0046] Reference Figure 3-Figure 7 , which is basically the same as Example 1, further discloses a specific implementation scheme of the ventilation component.

[0047] The above-mentioned ventilation component includes a drive motor 5 fixedly mounted on the upper end of the vertical pipe 4, and a drive shaft 6 is fixedly mounted on the output end of the drive motor 5. A plurality of circumferentially distributed fan blades 7 are fixedly mounted on the outer wall of the drive shaft 6. The number of fan blades 7 is 2-6, and the preferred number in this application is 3. The lower end of the rod-shaped battery cell 2 is provided with an exhaust portion, and the exhaust portion includes a cavity 11 arranged inside the rod-shaped battery cell 2. The lower end of the rod-shaped battery cell 2 is provided with an exhaust port 10 connected to the cavity 11, wherein the outer wall of the rod-shaped battery cell 2 is provided with a plurality of air inlet holes 9 connected to the cavity 11, and the number of the air inlet holes 9 is 10-30, and the preferred number in this application is 24. The input ends of the plurality of air inlet holes 9 are all facing the spiral groove 27.

[0048] Specifically, when in use, the drive motor 5 is started, the drive motor 5 will drive the drive shaft 6 to rotate, and the drive shaft 6 will drive the fan blades 7 to revolve around the axis of the drive shaft 6, and the fan blades 7 will blow air into the vertical tube 4, so that the coil 3 and the rod-shaped battery core 2 can be actively cooled, thereby improving the heat dissipation efficiency of the inductor and making the inductor work more stable. Since the substrate 1 will block the lower port of the vertical tube 4, the air flow will enter the cavity 11 through the air inlet 9 and then be discharged at the exhaust port 10 at the bottom of the cavity 11. The air flow passes through the cavity 11, the heat can be dissipated inside the rod-shaped battery cell 2, so that the heat dissipation efficiency of the rod-shaped battery cell 2 is further improved. In practice, the aperture of the air inlet holes 9 is gradually increased from top to bottom, that is, the aperture of the air inlet holes 9 near the top of the rod-shaped battery cell 2 is smaller than the aperture of the air inlet holes 9 near the bottom of the rod-shaped battery cell 2. In this way, the amount of air flowing in each air inlet hole 9 can be more uniform, preventing most of the air from directly entering the cavity 11 from the top air inlet hole 9, so that the coil 3 and the rod-shaped battery cell 2 can be cooled more evenly.

[0049] Example 3:

[0050] Reference Figure 4-Figure 7 , which is basically the same as the second embodiment, and further, a specific implementation scheme for cleaning the inner wall of the cavity 11 is specifically added.

[0051] A vertical shaft 12 connected to the drive shaft 6 is provided in the above-mentioned cavity 11, and multiple groups of brushes 13 distributed in a circumferential manner are fixed on the outer wall of the vertical shaft 12. The number of brushes 13 is 2 to 5 groups, and the preferred number in this application is 3 groups. The ends of the multiple groups of brushes 13 are all attached to the inner wall of the cavity 11.

[0052] Specifically, when the drive shaft 6 rotates, the drive shaft 6 will drive the vertical shaft 12 to rotate, and the vertical shaft 12 will drive the brush 13 to sweep along the inner wall of the cavity 11, so that the dust in the cavity 11 can be cleaned, so that the rod-shaped battery cell 2 maintains good heat dissipation efficiency. When the brush 13 blocks the air inlet 9, the airflow discharged from the air inlet 9 will blow towards the brush 13, thereby automatically completing the self-cleaning work of the brush 13, which can indirectly ensure the cleanliness of the cavity 11 and enable the rod-shaped battery cell 2 to maintain high heat dissipation efficiency.

[0053] The lower end of the above-mentioned drive shaft 6 is provided with a sliding hole 14, and a piston rod 15 is longitudinally slidably installed in the sliding hole 14. The vertical shaft 12 is fixedly connected to the lower end of the piston rod 15. The vertical shaft 12 is provided with a lifting part that drives the piston rod 15 to slide up and down. The lifting part includes a mounting plate 22 fixedly connected to the upper end of the vertical shaft 12, and a roller 20 is rotatably mounted on the mounting plate 22. A plurality of circumferentially distributed protrusions 21 are fixedly connected to the inner top of the cavity 11. The number of protrusions 21 is 2-7, and the preferred number in this application is 3. A spring 18 is installed between the piston rod 15 and the inner top of the sliding hole 14.

[0054] Specifically, when the vertical shaft 12 rotates, the vertical shaft 12 will drive the mounting plate 22 to rotate, and the mounting plate 22 will drive the roller 20 to roll along the inner top of the cavity 11. When the roller 20 is pressed downward by the protrusion 21, the mounting plate 22 will drive the vertical shaft 12 and the piston rod 15 to slide downward, and the piston rod 15 will slide downward in the sliding hole 14. When the roller 20 passes over the protrusion 21, the spring 18 will pull the piston rod 15 to slide upward and reset. The continuously rolling roller 20 will cause the piston rod 15 and the vertical shaft 12 to move up and down, thereby driving the brush 13 to move up and down on the inner wall of the cavity 11. On the one hand, the cleaning effect of the brush 13 is improved, and on the other hand, the dust on the brush 13 can be more easily removed.

[0055] Example 4:

[0056] Reference Figure 1-Figure 7 , which is basically the same as the third embodiment, and furthermore, a specific implementation plan for filtering dust is specifically added.

[0057] The upper end of the vertical pipe 4 is fixedly connected to a conical filter screen 23 that is arched upward. The top of the conical filter screen 23 is fixedly connected to a flat plate 24 . The drive motor 5 is fixedly installed on the lower end of the flat plate 24 .

[0058] Specifically, when the vertical pipe 4 blows air downward, the conical filter 23 at the upper end of the vertical pipe 4 can filter out most of the dust in the air, so that the spiral guide plate 8, the rod-shaped battery core 2 and the coil 3 are not easily contaminated by dust, thereby maintaining the heat dissipation efficiency of the rod-shaped battery core 2 and the coil 3.

[0059] A transverse tube 16 is fixedly connected to the above-mentioned fan blade 7, and a nozzle 19 facing the lower end surface of the conical filter 23 is fixedly connected to the transverse tube 16. An air supply portion arched against the nozzle 19 is provided on the drive shaft 6. The air supply portion includes an air intake hole 17 arranged on the outer wall of the drive shaft 6. The air intake hole 17 is connected to the sliding hole 14. The input end of the transverse tube 16 extends into the sliding hole 14. A one-way valve is fixedly installed in the air intake hole 17 and the transverse tube 16.

[0060] Specifically, when the piston rod 15 slides upward, it will squeeze the air in the sliding hole 14, and the sliding hole 14 will transport the air to the cross pipe 16, and the cross pipe 16 will blow the air to the lower end surface of the conical filter 23 through the nozzle 19, and the revolving fan blades 7 will drive the cross pipe 16 and the nozzle 19 to revolve synchronously around the axis of the drive shaft 6, thereby performing a comprehensive backblowing of the bottom of the conical filter 23, so that the conical filter 23 remains transparent, and thus the rod-shaped battery core 2 and the coil 3 can maintain good ventilation and heat dissipation effects. When the piston rod 15 slides downward, negative pressure will be generated in the sliding hole 14, and the outside air will be inhaled through the suction hole 17.

[0061] A method for preparing a high current power inductor, the operating steps are as follows:

[0062] Step 1: Fix the rod-shaped battery cell 2 onto the substrate 1;

[0063] Step 2: Fix the spiral guide plate 8 to the outer wall of the rod-shaped battery cell 2;

[0064] Step 3: Fix the coil 3 to the outer wall of the rod-shaped battery core 2 in a spiral manner, and make the end of the coil 3 pass through the lower end of the substrate 1;

[0065] Step 4: Fix the vertical pipe 4 to the base plate 1;

[0066] Step 5: Install the drive shaft 6 on the output shaft of the drive motor 5, and install the fan blades 7 on the outer wall of the drive shaft 6;

[0067] Step 6: Install the drive motor 5 to the bottom of the flat plate 24 , and fix the conical filter 23 to the upper end of the vertical pipe 4 .

[0068] When the high-current power inductor is in use, the drive motor 5 is started, which drives the drive shaft 6 to rotate. The drive shaft 6 drives the fan blades 7 to revolve around the axis of the drive shaft 6. The fan blades 7 blow air into the vertical tube 4, thereby actively dissipating heat from the coil 3 and the rod-shaped battery core 2. This improves the heat dissipation efficiency of the inductor, making the inductor more stable and having a longer service life. Due to the action of the spiral guide plate 8 and the vertical tube 4, the downward airflow flows downward along the spiral groove 27, thereby significantly increasing the contact area and time between the air and the coil 3 and the rod-shaped battery core 2, thereby significantly improving the heat dissipation efficiency of the inductor.

[0069] Since the base plate 1 blocks the lower end of the vertical tube 4, the airflow enters the cavity 11 through the air inlet 9 and is then discharged through the exhaust port 10 at the bottom of the cavity 11. When the airflow passes through the cavity 11, it can dissipate heat from the interior of the rod-shaped battery cell 2, thereby further improving the heat dissipation efficiency of the rod-shaped battery cell 2. In practice, the apertures of the air inlet 9 are gradually increased from top to bottom, that is, the apertures of the air inlet 9 near the top of the rod-shaped battery cell 2 are smaller than the apertures of the air inlet 9 near the bottom of the rod-shaped battery cell 2. This makes the amount of air flowing into each air inlet 9 more uniform, preventing most of the air from directly entering the cavity 11 through the top air inlet 9, thereby allowing the coil 3 and the rod-shaped battery cell 2 to receive more uniform heat dissipation.

[0070] When the drive shaft 6 rotates, the drive shaft 6 will drive the piston rod 15 to rotate, and the piston rod 15 will drive the vertical shaft 12 to rotate. The vertical shaft 12 will drive the brush 13 to sweep along the inner wall of the cavity 11, so that the dust in the cavity 11 can be cleaned, so that the rod-shaped battery cell 2 maintains good heat dissipation efficiency. When the brush 13 blocks the air inlet 9, the airflow discharged from the air inlet 9 will blow towards the brush 13, thereby automatically completing the self-cleaning work of the brush 13, which can indirectly ensure the cleanliness of the cavity 11 and maintain high heat dissipation efficiency of the rod-shaped battery cell 2.

[0071] When the vertical shaft 12 rotates, the vertical shaft 12 will drive the mounting plate 22 to rotate, and the mounting plate 22 will drive the roller 20 to roll along the inner top of the cavity 11. When the roller 20 is pressed downward by the protrusion 21, the mounting plate 22 will drive the vertical shaft 12 and the piston rod 15 to slide downward, and the piston rod 15 will slide downward in the sliding hole 14. When the roller 20 passes over the protrusion 21, the spring 18 will pull the piston rod 15 to slide upward and reset. The continuously rolling roller 20 will cause the piston rod 15 and the vertical shaft 12 to move up and down, thereby driving the brush 13 to move up and down on the inner wall of the cavity 11. On the one hand, the cleaning effect of the brush 13 is improved, and on the other hand, the dust on the brush 13 can be more easily removed.

[0072] When the vertical pipe 4 blows air downward, the conical filter 23 at the upper end of the vertical pipe 4 can filter out most of the dust in the air, making the spiral guide plate 8, the rod-shaped battery core 2 and the coil 3 not easily contaminated by dust, so as to maintain the heat dissipation efficiency of the rod-shaped battery core 2 and the coil 3. When the piston rod 15 slides upward, it will squeeze the air in the sliding hole 14, and the sliding hole 14 will transport the air to the cross pipe 16. The cross pipe 16 will blow the air to the lower end surface of the conical filter 23 through the nozzle 19, and the revolving fan blades 7 will drive the cross pipe 16 and the nozzle 19 to revolve synchronously around the axis of the drive shaft 6, thereby performing a comprehensive backblowing on the bottom of the conical filter 23, so that the conical filter 23 remains transparent, and thus the rod-shaped battery core 2 and the coil 3 can maintain good ventilation and heat dissipation effects. When the piston rod 15 slides downward, negative pressure will be generated in the sliding hole 14, and the outside air will be sucked in through the suction hole 17.

[0073] During use, the rod-shaped battery cell 2 also transfers heat to the spiral guide plate 8, thereby increasing the heat dissipation area of the rod-shaped battery cell 2. The spiral guide plate 8 also transfers heat to the heat sink 25. The heat sink 25 can dissipate heat from the spiral guide plate 8 and the rod-shaped battery cell 2 through passive heat dissipation, significantly improving the heat dissipation efficiency of the rod-shaped battery cell 2 and making the operation of the inductor more stable.

[0074] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A high current power inductor, comprising a substrate (1), characterized in that: Also includes: The rod-shaped battery cell (2) is fixedly connected to the substrate (1). A coil (3) is fixedly wound around the outer wall of the rod-shaped battery core (2), and both ends of the coil (3) extend to the lower end surface of the substrate (1); A vertical tube (4) is fixedly connected to the substrate (1), and the rod-shaped battery core (2) and the coil (3) are both located in the vertical tube (4). The outer wall of the rod-shaped battery core (2) is fixedly connected to a spiral guide plate (8), the outer wall of the spiral guide plate (8) is attached to the inner wall of the vertical tube (4), a spiral groove (27) is formed between the spiral guide plate (8) and the outer wall of the rod-shaped battery core (2), the coil (3) is arranged in the spiral groove (27), and a ventilation component is provided on the top of the vertical tube (4); The ventilation component comprises a drive motor (5) fixedly mounted on the upper end of the vertical pipe (4); a drive shaft (6) is fixedly mounted on the output end of the drive motor (5); a plurality of circumferentially distributed fan blades (7) are fixedly mounted on the outer wall of the drive shaft (6); and an exhaust portion is provided at the lower end of the rod-shaped battery core (2); The exhaust portion comprises a cavity (11) arranged inside the rod-shaped battery core (2), and the lower end of the rod-shaped battery core (2) is provided with an exhaust port (10) communicating with the cavity (11). The outer wall of the rod-shaped battery core (2) is provided with a plurality of air inlet holes (9) communicating with the cavity (11), and the input ends of the plurality of air inlet holes (9) are all oriented toward the inside of the spiral groove (27).

2. The high current power inductor according to claim 1, characterized in that: A vertical shaft (12) connected to the drive shaft (6) is provided in the cavity (11), and a plurality of groups of brushes (13) distributed circumferentially are fixedly provided on the outer wall of the vertical shaft (12), and the ends of the plurality of groups of brushes (13) are all attached to the inner wall of the cavity (11).

3. The high current power inductor according to claim 2, characterized in that: The lower end of the driving shaft (6) is provided with a sliding hole (14), and a piston rod (15) is longitudinally slidably installed in the sliding hole (14). The vertical shaft (12) is fixedly connected to the lower end of the piston rod (15), and a lifting portion for driving the piston rod (15) to slide up and down is provided on the vertical shaft (12).

4. The high current power inductor according to claim 3, characterized in that: The lifting portion includes a mounting plate (22) fixedly connected to the upper end of the vertical shaft (12), a roller (20) being rotatably mounted on the mounting plate (22), a plurality of circumferentially distributed protrusions (21) being fixedly connected to the inner top of the cavity (11), and a spring (18) being installed between the piston rod (15) and the inner top of the sliding hole (14).

5. The high current power inductor according to claim 4, characterized in that: The upper end of the vertical pipe (4) is fixedly connected to a conical filter screen (23) that is arched upward, the top of the conical filter screen (23) is fixedly connected to a flat plate (24), and the drive motor (5) is fixedly mounted on the lower end of the flat plate (24).

6. The high current power inductor according to claim 5, characterized in that: The fan blade (7) is fixedly connected to a transverse tube (16), and the transverse tube (16) is fixedly connected to a nozzle (19) facing the lower end surface of the conical filter (23). The drive shaft (6) is provided with an air supply portion that is arched towards the nozzle (19).

7. The high current power inductor according to claim 6, characterized in that: The air supply portion includes an air intake hole (17) provided on the outer wall of the drive shaft (6), the air intake hole (17) is connected to the sliding hole (14), the input end of the transverse pipe (16) extends into the sliding hole (14), and a one-way valve is fixedly installed in the air intake hole (17) and the transverse pipe (16).

8. A method for preparing a high current power inductor, comprising the high current power inductor according to claim 7, characterized in that: The steps are as follows: Step 1: Fixing the rod-shaped battery cell (2) onto the substrate (1); Step 2: Fixing the spiral guide plate (8) to the outer wall of the rod-shaped battery core (2); Step 3: Fix the coil (3) to the outer wall of the rod-shaped battery core (2) in a spiral manner, and make the end of the coil (3) pass through the lower end of the substrate (1); Step 4: Fix the vertical pipe (4) to the base plate (1); Step 5: Install the drive shaft (6) on the output shaft of the drive motor (5), and install the fan blades (7) on the outer wall of the drive shaft (6); Step 6: Install the drive motor (5) to the bottom of the flat plate (24), and fix the conical filter (23) to the upper end of the vertical pipe (4).

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