Passive automatic reset pulse voltage generating device and generating method thereof

Abstract

This invention relates to a passive automatic reset pulse voltage generator and its generation method, belonging to the field of magnetic induction power generation. It includes a housing, a reset sleeve, a coil assembly, a magnetic core assembly, and a reset limiting assembly. A circular cavity is formed through one end of the housing, within which an annular frustum is formed. A first thread is provided on the annular frustum, and a countersunk hole is formed in the center of the annular frustum. The reset sleeve is fitted and slidably engaged with one end of the housing, and a third cavity is formed within the reset sleeve. The coil assembly is disposed on the annular frustum to form a circuit and limit magnetic field dispersion. By employing a press-driven mechanism, nested connection, and a double-spring combination with a four-sided slotted switch, the magnetic core cutting the coil and resetting can be controlled. The press-type mechanical power generation, combined with the spring, enables automatic resetting and provides long-term, multiple stable pulse power generation. It has advantages such as small difference, fast response, and purely mechanical action suitable for various climatic environments.

Description

Technical Field

[0001] This invention relates to the field of magnetic induction power generation, and more specifically to a passive automatic reset pulse voltage generator and its generation method. Background Technology

[0002] Electricity is indispensable in modern society, but there are still many scenarios in production and daily life where there is no available power supply. In such cases, a self-powered solution is needed. In large-scale applications, solar power generation can solve the problem to some extent, but there is currently no suitable and efficient solution for small and micro electrical appliances and equipment.

[0003] Currently used methods, such as hand-cranked power generation, piezoelectric power generation, and thermoelectric power generation, have the following drawbacks: 1) It has high requirements for ambient temperature, narrow application range, and poor power supply continuity, sustainability, and stability. 2) The generated electrical energy is very small and the duration is short, so it cannot be used in high-power scenarios, thus limiting its application range; 3) The structure is bulky and unreasonable, requiring a large space for installation and operation, which is not conducive to achieving miniaturized applications; 4) Poor reliability and protection capabilities; not resistant to violent damage; poor waterproof and dustproof performance. Summary of the Invention

[0004] Purpose of the invention: To address the above-mentioned shortcomings, the present invention provides a passive automatic reset pulse voltage generator and its generation method, thereby solving the problems existing in the prior art.

[0005] Technical solution: A passive automatic reset pulse voltage generator, comprising a housing, a reset sliding sleeve, a coil assembly, a magnetic core assembly, and a reset limiting assembly; The housing has a circular cavity extending through one end, and an annular frustum is formed inside the circular cavity. A first thread is provided on the annular frustum, and a countersunk hole is provided in the middle of the annular frustum. A reset sliding sleeve is fitted and slidably engaged with one end of the housing, and a third receiving cavity is formed inside the reset sliding sleeve; A coil assembly, disposed on the annular truncated cone, is used to form a circuit and limit the dispersion of the magnetic field; A magnetic core assembly is disposed within the third receiving cavity and located in the middle of the coil assembly, and is used to cut the coil assembly and generate pulse voltage; The re-limiting component is correspondingly disposed on the housing, reset sliding sleeve, coil assembly and magnetic core assembly, and is used to control the re-limiting.

[0006] In a further embodiment, the magnetic core assembly includes a magnetic core shell, a plurality of gaskets, and a plurality of magnets; The magnetic core housing is slidably disposed within the housing and the reset sleeve; Multiple gaskets are disposed at one end of the magnetic core shell near the housing, and the other end of the multiple gaskets abuts against a magnet base; Multiple magnets are spaced apart between the multiple gaskets.

[0007] In a further embodiment, the coil assembly includes a coil shield, a coil shield cover, and a coil; A coil shield is disposed on the annular truncated cone. A coil shielding cover is adapted to the first thread, and a coil is wrapped between the coil shielding cover and the coil shielding cover. The coil, together with the coil shielding cover and the coil shielding cover, forms a circuit.

[0008] In a further embodiment, the multiple limiting assembly includes a pressing cover, a lower spring, and an upper spring; The press cover is located at the end of the reset sleeve furthest from the housing; The lower spring is disposed in the third receiving cavity and its two ends abut against the pressing cover and the magnetic core shell, respectively. The upper spring is located inside the circular receiving cavity and its two ends abut against the reset sliding sleeve and the coil shielding cover, respectively, to cooperate with the lower spring to achieve reset.

[0009] In a further embodiment, the magnetic core shell includes a first boss, a second through hole, and a second receiving cavity; The first boss is used to mount the lowering spring; The second through hole is opened in the middle of the magnetic core shell and is used to install part of the multiple limiting components; The second receiving cavity is located on the side of the magnetic core shell away from the first protrusion, and is used to place the gasket, magnet and coil. In this application, the magnetic core shell is made of soft material and has a three-section shape. The upper end extends out of the first protrusion to accommodate the lower spring. The other end of the lower spring abuts against the inside of the press cover. The magnetic core shell has a second through hole in the middle, with an inner diameter slightly smaller than the outer diameter of the limiting pin. The two are interference-fitted. There is also a second receiving cavity at the lower end of the magnetic core shell, which is used to place the gasket, magnet and magnet seat.

[0010] In a further embodiment, the multiple limiting assembly further includes a limiting screw and a limiting pin; A limiting screw is installed on the reset sleeve to limit the axial movement of the reset sleeve; The limiting pin has an outer diameter slightly larger than the inner diameter of the second through hole, and the limiting pin is interference-fitted to the magnetic core shell through the second through hole.

[0011] In a further embodiment, the reset sleeve includes a threaded frustum, a threaded hole, a second boss, and a quadrangular slot switch. A threaded frustum is located at the upper end of the reset sleeve and is used to connect the press cover; A threaded hole is provided in the middle of the reset sleeve for installing a limit screw; The second protrusion is located at the lower part of the reset sleeve and is used to install the upper spring; The four-sided slotted switch is located in the center of the reset sleeve and is mirror-symmetrical. It is used to cooperate with the limiting pin to realize the reciprocating sliding of the magnetic core assembly. In this application, the reset sleeve is made of high-strength corrosion-resistant alloy and has a third accommodating cavity inside for placing the magnetic core assembly. It is nested in a circular accommodating cavity on the outer shell. Here, the surface roughness requirement for its inner and outer surfaces is Ra≤3.2μm.

[0012] In a further embodiment, the housing has a first through hole for connecting the coil lead.

[0013] In a further embodiment, the housing is provided with an oblong through groove, which is used to cooperate with the limiting screw on the reset slide to achieve axial limiting, so that the reset slide slide can slide back and forth along the axial direction; The housing is also provided with a mirror-symmetrical L-shaped through groove to guide the limiting pin and realize the L-shaped movement of the magnetic core assembly.

[0014] A method for generating a passive automatic reset pulse voltage includes the following steps: S1. By pressing down the cover with external force, the spring is squeezed and deformed and lowered to the preset position. Then, the upper edge of the quadrilateral slot switch on the reset sleeve pushes the magnetic core assembly and the limit pin to disengage from the limit position. S2. Under the action of the upper spring force, the magnetic core assembly is released and pushed to move linearly along the inner wall of the housing with the cooperation of the limit screw, generating a high-speed cutting coil to generate pulse voltage; S3. After the action is completed, remove the external force; S4. The lower spring lifts the magnetic core assembly, and the lower edge of the four-sided slotted switch pushes the magnetic core assembly back to reset along the L-shape under the action of the elastic force.

[0015] Beneficial Effects: This invention relates to a passive automatic reset pulse voltage generator and its generation method. It employs a press-driven mechanism, nested connection, and a double-spring system with a four-sided slotted switch to control the magnetic core cutting coil and reset. The press-type mechanical power generation, combined with the spring, enables automatic reset, providing long-duration, multiple stable pulse power generation. It features small differential voltage, fast response, and purely mechanical operation suitable for various climatic environments. Using a large coil and high-strength magnet, the single pulse voltage reaches up to 30V, with a single pulse duration of up to 0.4 seconds, enabling the supply of up to 10A of current. Furthermore, the outer diameter of this invention is smaller than a one-yuan coin, and it features a compact design in the height direction, making it suitable for miniaturized and widespread use. The alloy shell is lightweight and high-strength, manufactured with military-grade technology, adaptable to various environments, and has good tri-proof performance, possessing the attributes of "simplicity and practicality." Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the present invention under the compressed state.

[0017] Figure 2 This is a cross-sectional view of the invention in its open state.

[0018] Figure 3 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 4 This is a schematic diagram of the structure of the housing of the present invention.

[0020] Figure 5 This is a schematic diagram of the structure of the magnetic core shell of the present invention.

[0021] Figure 6 This is a schematic diagram of the structure of the reset sliding sleeve of the present invention.

[0022] The figures are labeled as follows: 1. Housing, 1a. First through hole, 1b. Waist-shaped through groove, 1c. L-shaped through groove, 1d. Circular receiving cavity, 1e. First thread, 1f. Annular frustum, 1g. Countersunk hole, 2. Gasket, 3. Magnet, 4. Coil, 5. Coil shielding cover, 6. Magnetic core shell, 6a. First boss, 6b. Second through hole, 6c. Second receiving cavity, 7. Upper spring, 8. Limiting screw, 9. Reset sleeve, 9a. Third receiving cavity, 9b. Threaded frustum, 9c. Threaded hole, 9d. Second boss, 9e. Quadrilateral slotted switch, 10. Press cover, 11. Lower spring, 12. Limiting pin, 13. Coil shielding cover, 14. Magnet base. Detailed Implementation

[0023] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0024] The applicant believes that the currently used methods, such as hand-cranked power generation, piezoelectric power generation, thermoelectric power generation, etc., have the following disadvantages: 1) They have high requirements for the ambient temperature, narrow application range, and poor continuity, sustainability, and stability of power supply; 2) They generate very little electricity and have a short duration, making them unsuitable for high-power scenarios, thus limiting their application range; 3) They have bulky and unreasonable structures, require a large space for installation, and require a large space for operation, which is not conducive to miniaturized applications; 4) They have poor reliability and protection capabilities, are not resistant to violent damage, and have poor waterproof and dustproof effects.

[0025] Therefore, the applicant proposes a passive automatic reset pulse voltage generator and its generation method, wherein the passive automatic reset pulse voltage generator, such as... Figures 1-6 As shown, it includes a housing 1, a reset sliding sleeve 9, a coil assembly, a magnetic core assembly, and a reset limit assembly.

[0026] The shell 1 has a circular cavity 1d extending through one end, and an annular frustum 1f is formed inside the circular cavity 1d. The annular frustum 1f is provided with a first thread 1e, and a countersunk hole 1g is provided in the middle of the annular frustum 1f.

[0027] Specifically, the housing 1 is made of high-strength corrosion-resistant alloy material, and a circular cavity 1d is set inside it for setting up coil assembly and magnetic core assembly, etc. The countersunk hole 1g is opened at the bottom center of the annular frustum 1f to provide space for the magnetic core assembly to move. The annular frustum 1f is used to place the coil 4, and the first thread 1e is used to tighten the coil 4.

[0028] The reset sleeve 9 is inserted and slidably fitted into the housing 1 through one end, and a third receiving cavity 9a is formed inside the reset sleeve 9.

[0029] The coil assembly is mounted on the annular truncated cone 1f to form a circuit and limit the dispersion of the magnetic field.

[0030] The magnetic core assembly is disposed within the third receiving cavity 9a and located in the middle of the coil assembly, and is used to cut the coil assembly and generate pulse voltage.

[0031] The re-limiting component is correspondingly disposed on the housing 1, the reset sliding sleeve 9, the coil assembly and the magnetic core assembly, and is used to control the re-limiting.

[0032] like Figures 1-2As shown, the magnetic core assembly includes a magnetic core shell 6, multiple spacers 2, and multiple magnets 3.

[0033] The magnetic core shell 6 is slidably disposed within the housing 1 and the reset sleeve 9.

[0034] Multiple gaskets 2 are disposed at one end of the magnetic core shell 6 near the housing 1, and the other end of the multiple gaskets 2 abuts against the magnet base 14.

[0035] Multiple magnets 3 are spaced apart between multiple pads 2.

[0036] In this application, there are three gaskets 2 and two magnets 3. The distribution is that the three gaskets 2 and the two magnets 3 repel each other and clamp each other, with the ends abutting against the magnet seat 14. The ends of the circular receiving cavity 1d are plastically deformed and tightly wrapped, so that the magnetic core shell 6, the gaskets 2, the magnets 3 and the magnet seat 14 together form the magnetic core assembly.

[0037] like Figures 1-2 As shown, the coil assembly includes a coil shield 13, a coil shield cover 5, and a coil 4.

[0038] The coil shield 13 is disposed on the annular frustum 1f.

[0039] The coil shielding cover 5 is adapted to the first thread 1e. The coil 4 is wrapped between the coil shielding cover 5 and the coil shielding cover 13. The coil 4, together with the coil shielding cover 13 and the coil shielding cover 5, forms a circuit.

[0040] In this application, the coil assembly is sleeved outside the magnetic core assembly and consists of a coil shield 13, a coil 4, and a coil shield cover 5. The coil shield 13 and the coil shield cover 5 are made of high magnetic permeability material. The two cover the coil 4 to form a circuit and limit the magnetic field divergence. The entire coil assembly is placed on the annular frustum 1f, and the upper part is pressed tightly by the coil shield cover 5 by thread.

[0041] like Figures 1-2 As shown, the repositioning assembly includes a pressing cover 10, a lower spring 11, and an upper spring 7.

[0042] The pressing cover 10 is located at the end of the reset sliding sleeve 9 away from the housing 1.

[0043] The lower spring 11 is disposed in the third receiving cavity 9a and its two ends abut against the pressing cover 10 and the magnetic core shell 6, respectively.

[0044] The upper spring 7 is located inside the circular receiving cavity 1d and its two ends abut against the reset sliding sleeve 9 and the coil shielding cover 5, respectively, to cooperate with the lower spring 11 to achieve reset.

[0045] In this application, the upper spring 7 is made of high-strength stainless steel, with one end sleeved on the second protrusion 9d and the other end placed above the coil shield 13.

[0046] like Figure 5 As shown, the magnetic core shell 6 includes a first boss 6a, a second through hole 6b, and a second receiving cavity 6c.

[0047] The first boss 6a is used to mount the lowering spring 11.

[0048] The second through hole 6b is located in the middle of the magnetic core shell 6 and is used to install part of the repositioning component.

[0049] The second receiving cavity 6c is located on the side of the magnetic core shell 6 away from the first boss 6a, and is used to house the gasket 2, the magnet 3 and the coil 4.

[0050] In this application, the magnetic core shell 6 is made of soft material and has a three-section shape. The upper end extends out with a first protrusion 6a to accommodate the lower spring 11. The other end of the lower spring 11 abuts against the inner side of the pressing cover 10. The magnetic core shell 6 has a second through hole 6b in the middle, with an inner diameter slightly smaller than the outer diameter of the limiting pin 12. The two are interference-fitted. There is also a second receiving cavity 6c at the lower end of the magnetic core shell 6 to accommodate the gasket 2, the magnet 3 and the magnet base 14.

[0051] like Figures 1-2 As shown, the multiple limiting assembly also includes a limiting screw 8 and a limiting pin 12.

[0052] The limiting screw 8 is installed on the reset sleeve 9 to limit the axial movement of the reset sleeve 9.

[0053] The outer diameter of the limiting pin 12 is slightly larger than the inner diameter of the second through hole 6b. The limiting pin 12 is interference-fitted with the magnetic core shell 6 through the second through hole 6b.

[0054] like Figure 6 As shown, the reset sleeve 9 includes a threaded frustum 9b, a threaded hole 9c, a second boss 9d, and a quadrangular slot switch 9e.

[0055] The threaded frustum 9b is located on the upper end of the reset slide sleeve 9 and is used to connect the press cover 10.

[0056] The threaded hole 9c is located in the middle of the reset sleeve 9 and is used to install the limit screw 8.

[0057] The second boss 9d is located at the lower part of the reset sleeve 9 and is used to install the upper spring 7.

[0058] The quadrangular slotted switch 9e is located in the center of the reset sleeve 9 and is mirror-symmetrical. It is used in conjunction with the limit pin 12 to realize the reciprocating sliding of the magnetic core assembly.

[0059] In this application, the reset sleeve 9 is made of high-strength corrosion-resistant alloy, and has a third receiving cavity 9a inside for placing the magnetic core assembly. It is nested in a circular receiving cavity 1d on the housing 1. The surface roughness requirement for its inner and outer surfaces is Ra≤3.2μm.

[0060] In addition, in order to popularize the self-generating application in the field of micro-devices, this application uses a press-driven, nested connection, and a double spring combined with a four-sided slotted switch 9e to control the magnetic core assembly to cut the coil 4 and achieve reset. Combined with the use of press-type mechanical power generation, which can be automatically reset with the spring, it has the advantages of being reusable, having precise displacement, being able to provide long-term, multiple stable pulse power generation, having small difference, fast response, and being purely mechanical and suitable for various climatic environments. It solves the problems of high environmental requirements and poor stability of similar products.

[0061] In addition, it adopts a 500-turn high-density coil 4 and a high-strength magnet 3, with a single pulse voltage of up to 30V and a single pulse duration of up to 0.3 seconds, which can realize high current and high power activation and power supply, solving the problems of low power generation and short duration of similar products.

[0062] Meanwhile, the outer diameter of this device is smaller than that of a one-yuan coin, and its compact and minimalist design in the height direction makes it suitable for miniaturization and widespread use. It uses an alloy shell, making it lightweight and high-strength, manufactured with military-grade technology, adaptable to various environments, and possessing excellent tri-proof performance, effectively solving the problem of bulky structure found in similar products.

[0063] like Figure 4 As shown, the housing 1 has a first through hole 1a for connecting the lead wire of the coil 4.

[0064] The housing 1 has an oblong through groove 1b, which is used to cooperate with the limiting screw 8 on the reset slide sleeve 9 to achieve axial limiting, so that the reset slide sleeve 9 slides back and forth along the axial direction.

[0065] The housing 1 is also provided with a mirror-symmetrical L-shaped through groove 1c, which is used to guide the limiting pin 12 and realize the L-shaped movement of the magnetic core assembly.

[0066] In this application, the first through hole 1a, the waist-shaped through groove 1b, and the L-shaped through groove 1c are all opened through the outer wall of the housing 1 and are all connected to the circular receiving cavity 1d.

[0067] Furthermore, the significant advantages of this application compared to the prior art are as follows: 1. Automatic Reset: The product of this application uses a dual-spring drive, which can automatically reset after each pulse power generation, making it suitable for multiple long-term use conditions.

[0068] II. High power and long single pulse duration: Using a high-strength magnet 3 in combination with a 500-turn high-density coil 4, the single pulse voltage is up to 30V and the single pulse duration is up to 0.3 seconds, which can drive high-power applications.

[0069] 3. Fast response, stable and durable: It adopts a high-strength spring, which has a fast excitation speed, good recovery performance, and is durable. The pure mechanical action limit generates a stable pulse voltage value with small difference.

[0070] IV. Lightweight and compact: The main body is made of aluminum alloy, which greatly reduces the weight of the product. In addition, the outer diameter of this invention is smaller than that of a one-yuan coin, and it is designed to be compact in the height direction, making it extremely small in size.

[0071] V. Long lifespan, strong anti-interference capabilities, and excellent three-proof performance: Key components are made of stainless steel and high-strength aluminum alloy, which are corrosion-resistant, wear-resistant, and have good mechanical properties, allowing for long-term use. Internally, it is installed using military-grade technology, providing strong resistance to interference and offering waterproof, dustproof, and vibration-proof protection.

[0072] VI. Easy to adapt and popularize: It adopts a minimalist design, is easy to process, has low cost, and is optimized to be applicable to most existing products, making it easy to achieve mass production.

[0073] Based on the above technical solution, the specific working process of the present invention is as follows: by pressing down the pressing cover 10 with external force, the lower spring 11 is squeezed to deform and lower to the preset position. Then, the upper edge of the quadrilateral slotted switch 9e on the reset sleeve 9 pushes the magnetic core assembly and the limiting pin 12 to disengage from the limit. Under the elastic force of the upper spring 7, the magnetic core assembly is released and pushed to move linearly along the inner wall of the housing 1 with the cooperation of the limiting screw 8, generating a high-speed cutting coil 4 to generate a pulse voltage. After the action is completed, the external force is removed, the lower spring 11 lifts up the magnetic core assembly, and the lower edge of the quadrilateral slotted switch 9e pushes the magnetic core assembly back to reset along the L-shape under the elastic force.

[0074] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A passive automatic reset pulse voltage generator, characterized in that, include: The housing has a circular cavity extending through one end, and an annular frustum is formed inside the circular cavity. A first thread is provided on the annular frustum, and a countersunk hole is provided in the middle of the annular frustum. A reset sliding sleeve is fitted and slidably engaged with one end of the housing, and a third receiving cavity is formed inside the reset sliding sleeve; A coil assembly, disposed on the annular truncated cone, is used to form a circuit and limit the dispersion of the magnetic field; A magnetic core assembly is disposed within the third receiving cavity and located in the middle of the coil assembly, and is used to cut the coil assembly and generate pulse voltage; A re-limiting component is correspondingly disposed on the housing, reset sliding sleeve, coil assembly and magnetic core assembly, and is used to control the re-limiting; The magnetic core assembly includes: The magnetic core housing is slidably disposed within the housing and the reset sleeve; Multiple gaskets are disposed at one end of the magnetic core shell near the housing, and the other end of the multiple gaskets abuts against a magnet base; Multiple magnets are spaced apart between the multiple gaskets; The coil assembly includes: A coil shield is disposed on the annular truncated cone. A coil shielding cover is adapted to the first thread, and a coil is wrapped between the coil shielding cover and the coil shielding cover. The coil, together with the coil shielding cover and the coil shielding cover, forms a circuit. The complex limiting component includes: The press cover is located at the end of the reset sleeve furthest from the housing; The lower spring is disposed in the third receiving cavity and its two ends abut against the pressing cover and the magnetic core shell, respectively. The upper spring is disposed in the circular receiving cavity and its two ends abut against the reset sliding sleeve and the coil shielding cover, respectively, and is used to cooperate with the lower spring to achieve reset; The reset sliding sleeve includes: A threaded frustum is located at the upper end of the reset sleeve and is used to connect the press cover; A threaded hole is provided in the middle of the reset sleeve for installing a limit screw; The second protrusion is located at the lower part of the reset sleeve and is used to install the upper spring; A four-sided slotted switch is located in the center of the reset sleeve and is mirror-symmetrical. It is used in conjunction with the limit pin to realize the reciprocating sliding of the magnetic core assembly.

2. The passive automatic reset pulse voltage generator according to claim 1, characterized in that: The magnetic core housing includes: The first boss is used to mount the lowering spring; The second through hole is opened in the middle of the magnetic core shell and is used to install part of the multiple limiting components; The second receiving cavity is located on the side of the magnetic core shell away from the first boss, and is used to house the gasket, magnet and coil.

3. The passive automatic reset pulse voltage generator according to claim 2, characterized in that: The complex limiting component further includes: A limiting screw is installed on the reset sleeve to limit the axial movement of the reset sleeve; The limiting pin has an outer diameter slightly larger than the inner diameter of the second through hole, and the limiting pin is interference-fitted to the magnetic core shell through the second through hole.

4. The passive automatic reset pulse voltage generator according to claim 1, characterized in that: The housing has a first through hole for connecting the coil lead.

5. The passive automatic reset pulse voltage generator according to claim 1, characterized in that: The housing has an oblong through groove for axial positioning with the limiting screw on the reset sleeve, allowing the reset sleeve to slide back and forth along the axial direction. The housing also has a mirror-symmetrical L-shaped through groove for guiding the limiting pin and enabling the magnetic core assembly to move in an L-shape.

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