High-current power inductor and preparation method thereof

Abstract

The invention discloses a high-current power inductor and a preparation method thereof, and belongs to the technical field of inductors. A high-current power inductor comprises a substrate and further comprises a rod-shaped battery cell fixedly connected to the substrate, a coil is fixedly wound on the outer wall of the rod-shaped battery cell, and the two ends of the coil extend to the lower end face of the substrate; the vertical pipe is fixedly connected to the base plate, the rod-shaped battery cell and the coil are both located in the vertical pipe, the outer wall of the rod-shaped battery cell is fixedly connected with a spiral guide plate, the outer wall of the spiral guide plate is attached to the inner wall of the vertical pipe, a spiral groove is formed between the spiral guide plate and the outer wall of the rod-shaped battery cell, and the spiral groove is communicated with the spiral guide plate. The coil is arranged in the spiral groove, and a ventilation component is arranged on the top of the vertical pipe. According to the inductor, active heat dissipation can be conducted on the coil and the rod-shaped battery cell, the heat dissipation efficiency of the inductor is improved, the inductor works more stably, and the service life is longer.

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] An inductor is a commonly used electronic component that works on the principle of electromagnetic induction. An inductor is usually made of a wire wound into a coil, sometimes containing an iron core or other magnetic material to enhance the magnetic field, while a high current power inductor is an inductor specifically designed to handle high currents and minimize losses through its construction and material selection. They are commonly used in power converters, DC-DC converters, inverters, and other applications that require high efficiency and reliability.

[0003] In the prior art, since a high current power inductor has a large current passing through it when in use, after a long period of operation, both the coil and the battery core will generate a large amount of heat. In the prior art, the heat dissipation work is mainly completed in a passive manner, 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 a high current power inductor is prone to generate a lot of heat during operation and thus affects 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 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 both the rod-shaped battery core and the coil are located in 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 attached to the inner wall of the vertical tube, a spiral groove is formed between the spiral guide plate and the outer wall of the rod-shaped battery core, the coil is arranged in the spiral groove, and a ventilation component is provided on 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, a drive shaft is fixedly mounted on the output end of the drive motor, a plurality of circumferentially distributed fan blades are fixedly mounted on the outer wall of the drive shaft, and an exhaust portion is provided at the lower end of the rod-shaped battery cell.

[0008] In order to improve the heat dissipation efficiency of the rod-shaped battery cell, further, the exhaust portion 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 driving shaft is provided in the cavity, and multiple groups of brushes distributed in a circle 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 reciprocate up and down, 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 reciprocate up and down, 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 dust in the air, further, the upper end of the vertical pipe is fixedly connected with a conical filter screen that is arched upward, the top of the conical filter screen is fixedly connected with 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 toward the nozzle is provided on the drive shaft.

[0014] In order to intermittently blow air into the transverse tube, further, the air supply part includes an air suction hole arranged on the outer wall of the driving shaft, the air suction hole is connected with 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 onto 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 core 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 fix 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 having the following features:

[0023] Beneficial effects:

[0024] 1. This high-current power inductor will drive the drive shaft to rotate through the driving motor, and the fan blades will blow air into the vertical tube, thereby actively dissipating the heat of the coil and the 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-flowing 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. The high current power inductor allows the flowing airflow to enter the cavity through the air inlet hole 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. The high-current power inductor drives the vertical axis to rotate through the driving shaft, and the vertical axis drives the brush to sweep along the inner wall of the cavity in a circle, so as to clean the dust in the cavity and keep the rod-shaped battery cell with good heat dissipation efficiency. When the brush blocks the air inlet, the airflow discharged from the air inlet will blow toward the brush, thereby automatically completing the self-cleaning work of the brush, which can indirectly ensure the cleanliness of the cavity and keep the rod-shaped battery cell with high heat dissipation efficiency.

[0028] 5. The high-current power inductor will cause the piston rod and the vertical axis to move up and down through the continuous rolling of the 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 makes it easier to fall off the dust on the brush.

[0029] 6. The 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 pipe, so that the spiral guide plate, rod-shaped battery cell and coil are not easily contaminated by dust, so as to maintain the heat dissipation efficiency of the rod-shaped battery cell and the coil. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0031] Figure 2 A schematic diagram of the axonometric structure of a high current power inductor proposed by the present invention from a second viewing angle;

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

[0033] Figure 4 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 core 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. substrate; 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. sliding hole; 15. piston rod; 16. horizontal tube; 17. suction 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 described clearly and completely 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 is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] Embodiment 1:

[0042] Reference Figure 1-Figure 8 A high current power inductor includes a substrate 1, and also includes: a rod-shaped battery core 2, which is fixedly connected to the substrate 1, and the material of the rod-shaped battery core 2 is metal, wherein 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, which 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, wherein a spiral guide plate 8 is fixedly connected to the outer wall of the rod-shaped battery core 2, and 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, and 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 having a longer service life. Due to the action of the spiral guide plate 8 and the vertical tube 4, the downward-flowing 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 with a heat sink 25 that penetrates 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 will transfer heat to the heat sink 25, and the heat sink 25 can dissipate heat for the spiral guide plate 8 and the rod-shaped battery cell 2 by passive heat dissipation, which significantly improves the heat dissipation efficiency of the rod-shaped battery cell 2 and makes the operation of the inductor more stable.

[0045] Embodiment 2:

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

[0047] The above-mentioned ventilation component includes a drive motor 5 fixedly installed on the upper end of the vertical pipe 4, a drive shaft 6 is fixedly installed on the output end of the drive motor 5, and a plurality of circumferentially distributed fan blades 7 are fixedly installed on the outer wall of the drive shaft 6. The number of the 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, the number of the air inlet holes 9 is 10-30, and the preferred number in this application is 24, and 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, 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 airflow 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 airflow passes through the cavity 11, the inside of the rod-shaped battery cell 2 can be cooled, so that the cooling 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, and most of the air is prevented 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] Embodiment three:

[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] The above-mentioned cavity 11 is provided with a vertical shaft 12 connected to the driving shaft 6, and the outer wall of the vertical shaft 12 is fixed with multiple groups of brushes 13 distributed in a circle. 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 in contact with 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 toward 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.

[0053] A sliding hole 14 is provided at the lower end of the above-mentioned driving shaft 6, 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 part is provided on the vertical shaft 12 to drive 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 installed 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. Therefore, the continuously rolling roller 20 will cause the piston rod 15 and the vertical shaft 12 to reciprocate up and down, thereby driving the brush 13 to reciprocate 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 easier to fall off.

[0055] Embodiment 4:

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

[0057] The upper end of the vertical pipe 4 is fixedly connected with a conical filter screen 23 that is arched upward, the top of the conical filter screen 23 is fixedly connected with a flat plate 24 , and the driving motor 5 is fixedly installed at 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, so as to maintain 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 driving shaft 6. The air supply portion includes an air suction hole 17 arranged on the outer wall of the driving shaft 6. The air suction hole 17 is connected to the sliding hole 14. The input end of the transverse tube 16 extends into the sliding hole 14, and a one-way valve is fixedly installed in the air suction hole 17 and the transverse tube 16.

[0060] Specifically, when the piston rod 15 slides upward, the air in the sliding hole 14 will be squeezed, 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 sucked in 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 core 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 six: Install the driving motor 5 to the bottom of the flat plate 24 , and fix the conical filter screen 23 to the upper port of the vertical pipe 4 .

[0068] When the high current power inductor is in use, the drive motor 5 is started, the drive motor 5 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, and the fan blades 7 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, making the inductor work 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 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;

[0069] Since the substrate 1 blocks the lower port of the vertical tube 4, the airflow enters the cavity 11 through the air inlet 9 and is then discharged from the exhaust port 10 at the bottom of the cavity 11. When the airflow passes through the cavity 11, the inside of the rod-shaped battery cell 2 can be cooled, so that the heat dissipation efficiency of the rod-shaped battery cell 2 is further improved. In practice, the aperture of the air inlet 9 from top to bottom is gradually increased, that is, the aperture of the air inlet 9 near the top of the rod-shaped battery cell 2 is smaller than the aperture of the air inlet 9 near the bottom of the rod-shaped battery cell 2. In this way, the amount of air flowing in each air inlet 9 can be more uniform, and most of the air is prevented from directly entering the cavity 11 from the top air inlet 9, so that the coil 3 and the rod-shaped battery cell 2 can be cooled more evenly.

[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, 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, and when the brush 13 blocks the air inlet 9, the airflow discharged from the air inlet 9 will blow to 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 keep the rod-shaped battery cell 2 high in heat dissipation efficiency.

[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. Therefore, the continuously rolling roller 20 will cause the piston rod 15 and the vertical shaft 12 to reciprocate up and down, thereby driving the brush 13 to reciprocate 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 easier to fall off.

[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, so that the spiral guide plate 8, the rod-shaped battery core 2 and the coil 3 are 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, the air in the sliding hole 14 will be squeezed, 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, so as to fully back-blow the bottom of the conical filter 23, so that the conical filter 23 remains transparent, and then 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] When in use, the rod-shaped battery cell 2 will also transfer heat to the spiral guide plate 8, thereby increasing the heat dissipation area of ​​the rod-shaped battery cell 2, and the spiral guide plate 8 will also transfer heat to the heat sink 25, and the heat sink 25 can dissipate heat from the spiral guide plate 8 and the rod-shaped battery cell 2 in a passive heat dissipation manner, thereby 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 implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high current power inductor, comprising a substrate (1), characterized in that: Also includes: The rod-shaped battery core (2) is fixedly connected to the substrate (1). Wherein, 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 inside 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).

2. A high current power inductor according to claim 1, characterized in that: The ventilation component comprises a drive motor (5) fixedly mounted on an upper end of a vertical pipe (4); a drive shaft (6) is fixedly mounted on an output end of the drive motor (5); a plurality of circumferentially distributed fan blades (7) are fixedly mounted on an outer wall of the drive shaft (6); and an exhaust portion is provided at the lower end of the rod-shaped battery core (2).

3. A high current power inductor according to claim 2, characterized in that: The exhaust portion comprises a cavity (11) arranged inside the rod-shaped battery core (2); 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).

4. A high current power inductor according to claim 3, characterized in that: A vertical shaft (12) connected to the driving shaft (6) is provided in the cavity (11), and a plurality of groups of brushes (13) distributed in a circumference 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).

5. A high current power inductor according to claim 4, characterized in that: The lower end of the driving shaft (6) is provided with a sliding hole (14), in which a piston rod (15) is longitudinally slidably installed, the vertical shaft (12) is fixedly connected to the lower end of the piston rod (15), and the vertical shaft (12) is provided with a lifting part for driving the piston rod (15) to slide up and down.

6. The high current power inductor according to claim 5, characterized in that: The lifting part comprises 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 mounted between the piston rod (15) and the inner top of the sliding hole (14).

7. The high current power inductor according to claim 6, 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).

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

9. The high current power inductor according to claim 8, characterized in that: The air supply portion comprises an air intake hole (17) arranged on the outer wall of the driving shaft (6), the air intake hole (17) being connected to the sliding hole (14), the input end of the transverse pipe (16) extending into the sliding hole (14), and a one-way valve being fixedly installed in both the air intake hole (17) and the transverse pipe (16).

10. A method for preparing a high current power inductor, comprising the high current power inductor according to claim 9, 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) penetrate 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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