A rotary pulse generator using magnetic transmission

Abstract

The present invention provides a rotary pulse generator using magnetic transmission, comprising a transmission coupling, a magnetic reducer, a magnetic coupling, a main shaft and a valve head assembly which are sequentially connected in transmission, the transmission coupling comprising a transmission outer cylinder, a transmission block and a transmission inner shaft arranged in the transmission outer cylinder, a plurality of outer grooves are arranged in the transmission outer cylinder, the bottom of the outer grooves are configured as magnetic end faces, the end faces between the outer grooves are configured as magnetic end faces, and the magnetism is different from the magnetism of the end faces at the bottom of the outer grooves, a plurality of inner grooves are arranged outside the transmission inner shaft, the bottom of the inner grooves are configured as magnetic end faces, the transmission block is arranged between the outer grooves and the inner grooves, and the end face close to the transmission inner shaft is configured as a magnetic end face with the same magnetism as the end face at the bottom of the inner groove, and the end face close to the transmission outer cylinder is configured as a magnetic end face with a magnetism different from the end face at the bottom of the outer groove. The present invention can achieve the purpose of extending the service life of the rotary pulse generator using magnetic transmission, and ensure the adaptability and reliability of the underground well.

Description

Technical Field

[0001] The invention relates to the technical field of measurement and control while drilling, and in particular to a rotary pulse generator utilizing magnetic transmission. Background Art

[0002] The rotary valve pulse generator generates pulse signals through the reciprocating rotation and swing of the rotor. It can be used in muds of different densities and under different well conditions. It is suitable for a wide range of mud densities and working conditions, and also has good adaptability to drilling fluid systems and bottom hole conditions. Therefore, the scale of use of rotary valve pulse generators is gradually increasing.

[0003] Due to the strong demand for improving quality, speed, efficiency and production in drilling construction, the rotary valve pulse generator adopts high displacement, high pump pressure and high speed configuration accordingly, which leads to serious mechanical wear between the mechanical transmission gears of the mechanical interlocking gear reducer of the traditional rotary valve pulse generator, which in turn leads to a serious reduction in the stability of the rotary valve pulser under the construction environment, and is prone to failures such as the reduction gear box getting stuck, thereby reducing the reliability of the rotary valve pulser. Summary of the invention

[0004] One purpose of the present invention is to propose a rotary pulse generator utilizing magnetic transmission, so as to add a magnetic transmission component to the transmission structure of the rotary pulse generator utilizing magnetic transmission, realize the magnetic connection of internal mechanical components, avoid direct contact transmission, thereby extending the service life of the rotary pulse generator utilizing magnetic transmission, and ensuring the underground adaptability and reliability of the rotary pulse generator utilizing magnetic transmission.

[0005] According to the present invention, a rotary pulse generator utilizing magnetic transmission is provided, comprising a transmission coupling, a magnetic reducer, a magnetic coupling, a main shaft and a valve head assembly which are sequentially connected in transmission, the valve head assembly being capable of rotating with the main shaft to realize pressure pulses, the transmission coupling comprising a transmission outer cylinder, a transmission block and a transmission inner shaft arranged in the transmission outer cylinder, the transmission outer cylinder being provided with a plurality of outer grooves along its inner surface, the bottom of the outer grooves being configured as a magnetic end face, the end faces between the outer grooves being configured as a magnetic end face, and the magnetism being different from the magnetism of the end faces at the bottom of the outer grooves, the transmission inner shaft being provided with a plurality of inner grooves along its outer surface, the bottom of the inner grooves being configured as a magnetic end face, the transmission block being arranged between the outer grooves and the inner grooves, and the end face close to the transmission inner shaft being configured as a magnetic end face having the same magnetism as the end face at the bottom of the inner groove, and the end face close to the transmission outer cylinder being configured as a magnetic end face having a different magnetism from the end face at the bottom of the outer groove.

[0006] In a preferred embodiment, the end of the transmission block close to the transmission inner shaft is constructed as a cylinder with a hexagonal cross-section, the end of the transmission block close to the transmission outer cylinder is constructed as a hexagonal cone, and the side surface of the transmission block is constructed as an arc surface.

[0007] In a preferred embodiment, the magnetic reducer includes a disc-type axial reducer, which includes a first input shaft, a first high-speed permanent magnet disk sleeved on the first input shaft, a first intermediate connecting shaft coaxial with the first input shaft, a first low-speed permanent magnet disk sleeved on the first intermediate connecting shaft, a second high-speed permanent magnet disk sleeved on the first intermediate connecting shaft, a first output shaft coaxial with the first intermediate connecting shaft, and a second low-speed permanent magnet disk sleeved on the first output shaft.

[0008] In a preferred embodiment, the disc-type axial reducer also includes a first-level adjustment disk arranged between the first-level high-speed permanent magnet disk and the first-level low-speed permanent magnet disk and a second-level adjustment disk arranged between the second-level high-speed permanent magnet disk and the second-level low-speed permanent magnet disk.

[0009] In a preferred embodiment, the magnetic reducer includes a barrel-type axial reducer, which includes a second input shaft, a primary high-speed support ring sleeved on the second input shaft, a primary high-speed permanent magnet ring sleeved on the primary high-speed support ring, a second intermediate connecting shaft coaxial with the second input shaft, a primary low-speed support ring sleeved on the second intermediate connecting shaft, a primary low-speed permanent magnet ring sleeved on the outer periphery of the primary low-speed support ring, a secondary high-speed support ring sleeved on the outer periphery of the second intermediate connecting shaft, a secondary high-speed permanent magnet ring sleeved on the outer periphery of the secondary high-speed support ring, a second output shaft coaxial with the second intermediate connecting shaft, a secondary low-speed support ring sleeved on the second output shaft, and a secondary low-speed permanent magnet ring sleeved on the secondary low-speed support ring.

[0010] In a preferred embodiment, the barrel-type axial reducer also includes a primary intermediate support ring sleeved on the second input shaft and a secondary intermediate support ring sleeved on the second intermediate connecting shaft, the primary intermediate support ring is arranged between the primary high-speed support ring and the primary low-speed support ring, and the secondary intermediate support ring is arranged between the secondary high-speed support ring and the secondary low-speed support ring.

[0011] In a preferred embodiment, the cylinder-type axial reducer also includes a primary magnetic adjustment cylinder and a secondary magnetic adjustment cylinder, both of which are fixed. The primary high-speed support ring, the primary high-speed permanent magnet ring, the intermediate support ring, the primary low-speed support ring, and the primary low-speed permanent magnet ring are all arranged in the primary magnetic adjustment cylinder, and all have the same axis as the primary magnetic adjustment cylinder. The secondary high-speed support ring, the secondary high-speed permanent magnet ring, the secondary low-speed permanent magnet ring, the secondary low-speed support ring, and the secondary intermediate support ring are all arranged in the secondary magnetic adjustment cylinder and are coaxial with the secondary magnetic adjustment cylinder.

[0012] In a preferred embodiment, the magnetic reducer includes a barrel-type radial reducer, which includes a third input shaft, a first-level inner rotor yoke sleeved on the outer periphery of the third input shaft, a first-level inner permanent magnet ring sleeved on the outer periphery of the first-level inner rotor yoke, a first-level transmission magnetic adjustment ring sleeved on the outer periphery of the first-level inner rotor yoke, a first-level outer permanent magnet ring sleeved on the outer periphery of the first-level transmission magnetic adjustment ring, a third intermediate connecting shaft coaxial with the third input shaft, a second-level inner rotor yoke sleeved on the outer periphery of the third intermediate connecting shaft, a second-level inner permanent magnet ring sleeved on the outer periphery of the second-level inner rotor yoke, a second-level transmission magnetic adjustment ring sleeved on the outer periphery of the second-level inner permanent magnet ring, a second-level outer permanent magnet ring sleeved on the outer periphery of the second-level transmission magnetic adjustment ring, and a third output shaft coaxial with the third intermediate connecting shaft.

[0013] In a preferred embodiment, the magnetic reducer is connected to the magnetic coupling through an elastic coupling, the magnetic coupling includes an outer magnetic cylinder and an inner magnetic cylinder arranged in the outer magnetic cylinder, the output end of the magnetic reducer is connected to the first end of the elastic coupling, the second end of the elastic coupling is connected to the input end of the magnetic coupling, the outer magnetic cylinder is connected to the input end of the magnetic reducer, the inner magnetic cylinder is arranged on the main shaft, the outer magnetic cylinder can drive the inner magnetic cylinder to rotate synchronously, and the inner magnetic cylinder drives the main shaft to rotate synchronously.

[0014] In a preferred embodiment, the valve head assembly includes a stator, a rotor, a magnetic limit device and a valve body shell, the rotor is sleeved on the main shaft and can rotate synchronously with the main shaft, the magnetic limit device includes a plurality of limit rods and a plurality of magnetic limit blocks, wherein the magnetic limit blocks are arranged in a circular form along the inner wall surface of the valve body shell, the limit rods are arranged in a circular form along the outer circumference of the rotor, and a first end thereof is connected to the rotor, and a magnetic block is provided at the second end of the limit rod, and the magnetic block is located between the two magnetic limit blocks, and the magnetic block and the two magnetic limit blocks repel each other through magnetic repulsion.

[0015] In a preferred embodiment, the rotary pulse generator utilizing magnetic transmission also includes a circuit module, which includes a microprocessor, a current detection unit connected to the microprocessor, a control unit and a resolver angle decoding unit, a drive unit connected to the control unit, a motor connected to the drive unit, and a rotary transformer connected to the resolver angle decoding unit, wherein the rotary transformer is arranged on the motor output shaft, the rotary transformer can be used to detect the rotation angle of the motor output shaft and transmit it to the resolver angle decoding unit, the resolver angle decoding unit decodes the rotation angle and transmits it to the microprocessor, and the current detection unit is used to detect the current intensity data in the circuit module and transmit it to the microprocessor.

[0016] The present invention comprises a transmission outer cylinder, a transmission block and a transmission inner shaft arranged in the transmission outer cylinder through a transmission coupling. The transmission outer cylinder is provided with a plurality of outer grooves along the inner surface. The bottom of the outer grooves is configured as a magnetic end face. The end faces between the outer grooves are configured as magnetic end faces, and the magnetism is different from the magnetism of the end faces at the bottom of the outer grooves. The transmission inner shaft is provided with a plurality of inner grooves along its outer surface. The bottom of the inner grooves is configured as a magnetic end face. The transmission block is arranged between the outer grooves and the inner grooves. The end face close to the transmission inner shaft is configured as a magnetic end face with the same magnetism as the end face at the bottom of the inner groove, and the end face close to the transmission outer cylinder is configured as a magnetic end face with different magnetism from the end face at the bottom of the outer groove. Magnetic connection of internal mechanical parts can be achieved, direct contact transmission can be avoided, thereby extending the service life of the rotary pulse generator using magnetic transmission, and ensuring the underground adaptability and reliability of the rotary pulse generator using magnetic transmission.

[0017] The present invention can effectively regulate the rotation of the rotor and improve the stability and reliability of the rotor control through the coordinated control of the circuit module and the magnetic limit device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the assembly structure of the rotary pulse generator using magnetic transmission of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the transmission coupling of the present invention;

[0020] Figure 3 It is a cross-sectional schematic diagram of the transmission coupling of the present invention in a normal transmission state;

[0021] Figure 4 It is a cross-sectional schematic diagram of the overload torque limiting state of the transmission coupling of the present invention;

[0022] Figure 5 is a front view of a transmission block of a transmission coupling of the present invention;

[0023] Figure 6is a top view of a transmission block of a transmission coupling of the present invention;

[0024] Figure 7 is a cross-sectional schematic diagram of the disc-type axial reducer of the present invention;

[0025] Figure 8 It is a schematic diagram of the structure of a high-speed permanent magnetic disk of a disk-type axial reducer of the present invention;

[0026] Fig. 9 It is a schematic diagram of the structure of the magnetic adjustment ring of the disc-type axial reducer of the present invention;

[0027] Fig.10 It is a schematic diagram of the structure of a low-speed permanent magnetic disk of a disk-type axial reducer of the present invention;

[0028] Fig.11 is a cross-sectional schematic diagram of a barrel-type axial reducer of the present invention;

[0029] Fig.12 It is a schematic diagram of the magnetic adjustment cylinder structure of the cylinder type axial reducer of the present invention;

[0030] Fig.13 It is a schematic diagram of the structure of the intermediate support ring of the barrel-type axial reducer of the present invention;

[0031] Fig.14 It is a schematic diagram of the high-speed permanent magnet ring structure of the barrel-type axial reducer of the present invention;

[0032] Fig.15 It is a schematic diagram of the low-speed permanent magnet ring structure of the barrel-type axial reducer of the present invention;

[0033] Fig.16 is a schematic axial cross-sectional view of the barrel-type radial reducer of the present invention;

[0034] Fig.17 is a schematic diagram of a vertical axial cross section of a barrel-type radial reducer of the present invention;

[0035] Fig.18 is a cross-sectional schematic diagram of a magnetic coupling of the present invention;

[0036] Fig.19 is a schematic structural diagram of a valve head assembly of the present invention;

[0037] Fig. 20 It is a structural schematic diagram of the magnetic limiting device of the present invention;

[0038] Fig.21 It is a structural schematic diagram of the magnetic limit device of the present invention in a rotor closed state;

[0039] Fig. 22 It is a structural schematic diagram of the magnetic limit device of the present invention in a rotor open state;

[0040] Fig.23 It is a schematic diagram of the composition of each functional unit of the circuit module of the present invention;

[0041] Fig.24 It is a structural schematic diagram of the rotary transformer of the present invention;

[0042] Fig.25 It is a schematic diagram of the connection structure of the motor output of the present invention.

[0043] In the present application, all drawings are schematic drawings, which are only used to illustrate the principles of the present invention and are not drawn according to the actual scale. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the present application more clear, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0045] like Figure 1 As shown, the rotary pulse generator 100 utilizing magnetic transmission described in the present invention comprises a transmission coupling 1, a magnetic reducer 2 connected to the transmission coupling 1, a magnetic coupling 3 connected to the magnetic reducer 2, a main shaft 4 connected to the magnetic coupling 3, a valve head assembly 5 connected to the main shaft 4, the transmission coupling 1, the magnetic reducer 2, the elastic coupling 64, the magnetic coupling 3, the main shaft 4 and the valve head assembly 5 are sequentially transmission-connected, wherein the valve head assembly 5 has a stator 67 and a rotor 68, the rotor 68 is mounted on the main shaft 4 and can rotate with the main shaft 4, and realizes the generation of pressure pulses by cooperating with the stator 67.

[0046] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the transmission coupling 1 includes a transmission outer cylinder 9, a transmission block 10 and a transmission inner shaft 11, wherein the transmission outer cylinder 9 is constructed as a cylindrical body, and a plurality of outer grooves 12 are evenly arranged along the inner surface, the bottom of the outer groove 12 is constructed as a magnetic end face, and the end face between the four outer grooves 12 of the transmission outer cylinder 9 is a magnetic end face, and the magnetism is different from the magnetism of the bottom end face of the outer groove 12.

[0047] The transmission inner shaft 11 is constructed as a cylindrical body, arranged inside the transmission outer cylinder 9, and a plurality of inner grooves 13 are evenly arranged along its outer surface, and the bottom of the inner groove 13 is constructed as a magnetic end face. The transmission block 10 is arranged between the outer groove 12 and the inner groove 13, and the end of the transmission block 10 close to the transmission inner shaft 11 is constructed as a cylinder with a hexagonal cross section, and the end of the transmission block 10 close to the transmission outer cylinder 9 is constructed as a hexagonal cone, and the side of the transmission block 10 is an arc surface. The end face of the transmission block 10 close to the transmission inner shaft 11 is a magnetic end face, and the magnetism is the same as the magnetism of the bottom end face of the inner groove 13, and the end face of the transmission block 10 close to the transmission outer cylinder 9 is a magnetic end face, and the magnetism is different from the magnetism of the bottom end face of the outer groove 12.

[0048] The following is a brief description of the installation process of the transmission coupling 1. First, the transmission block 10 is placed in the inner groove 13 of the transmission inner shaft 11. The magnetic repulsion between the transmission block 10 and the inner groove 13 of the transmission inner shaft 11 causes a gap between the transmission block 10 and the bottom of the inner groove 13. When the transmission block 10 enters the transmission outer cylinder 9 along with the transmission inner shaft 11, the magnetism of the end faces between the adjacent outer grooves 12 of the transmission outer cylinder 9 is the same as the magnetism of the end face of the transmission block 10 close to one end of the transmission outer cylinder 9, so that both end faces of the transmission block 10 are affected by the magnetic repulsion, so that there is a gap between the transmission block 10 and the transmission outer cylinder 9 and the transmission inner shaft 11. When the transmission block 10 reaches the outer groove 12, under the action of the attraction of the outer groove 12 and the repulsion of the inner groove 13, the transmission block 10 enters the outer groove 12 and is magnetically connected with the magnetic end face of the outer groove 12.

[0049] The following is a brief description of the working process of the transmission coupling 1. The output shaft of the motor 14 is fixedly connected to the transmission inner shaft 11. As the output shaft of the motor 14 rotates, the transmission inner shaft 11 rotates synchronously. The transmission inner shaft 11 drives the transmission outer cylinder 9 to rotate synchronously through the transmission block 10, thereby realizing magnetic coupling transmission, realizing magnetic connection of the internal mechanical parts of the rotary pulse generator 100 using magnetic transmission, avoiding direct contact transmission, thereby extending the service life of the rotary pulse generator 100 using magnetic transmission, and ensuring the underground adaptability and reliability of the rotary pulse generator 100 using magnetic transmission. Since the side of the transmission block 10 entering the outer groove 12 is a round table surface with an inclined surface, when the transmission is overloaded, the inclined surface of the transmission block 10 will be subjected to the force exerted by the hole surface of the inner groove 13 and the outer groove 12. The circumferential force is along the external tangent direction of the circle where the inner groove 13 and the outer groove 12 are located, and a component force perpendicular to the bottom surface of the transmission block 10 will be decomposed on the inclined surface of the transmission block 10. When this component force is greater than the combined force of the suction force of the outer groove 12 and the repulsion force of the inner groove 13, the transmission block 10 moves to the bottom of the inner groove 13, and continues to move with its inclined surface until it completely leaves the outer groove 12. The transmission block 10 no longer transmits the rotation of the transmission inner shaft 11 to the transmission outer cylinder 9, thereby realizing the magnetic torque limiting function of the transmission coupling 1.

[0050] The magnetic reducer 2 can adopt three types of magnetic gear reduction structures, namely a disc-type axial reducer 15 , a barrel-type axial reducer 16 and a barrel-type radial reducer 17 .

[0051] like Figure 1 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, the disc-type axial reducer 15 includes a first input shaft 18 connected to the transmission outer cylinder 9, a first-stage high-speed rotor yoke 20 sleeved on the first input shaft 18, a first-stage high-speed permanent magnet disk 21 sleeved on the first input shaft 18 and adjacent to the first-stage high-speed rotor yoke 20, a first intermediate connecting shaft 25 coaxial with the first input shaft 18, a first-stage low-speed permanent magnet disk 23 sleeved on the first intermediate connecting shaft 25, a first-stage low-speed rotor yoke 24 sleeved on the first intermediate connecting shaft 25 and adjacent to the first-stage low-speed permanent magnet disk 23, and a second-stage high-speed permanent magnet disk 21 sleeved on the first input shaft 18 and adjacent to the first-stage high-speed rotor yoke 20. The high-speed rotor yoke 26, the secondary high-speed permanent magnet disk 27 sleeved on the first intermediate connecting shaft 25 and adjacent to the secondary high-speed rotor yoke 26, the first output shaft 33 coaxial with the first intermediate connecting shaft 25, the secondary low-speed permanent magnet disk 29 sleeved on the first output shaft 33, the secondary low-speed rotor yoke 30 sleeved on the first output shaft 33 and adjacent to the secondary low-speed permanent magnet disk 29, the primary magnetic adjustment disk 22 arranged between the primary high-speed permanent magnet disk and the primary low-speed permanent magnet disk 23, and the secondary magnetic adjustment disk 28 arranged between the secondary high-speed permanent magnet disk 27 and the secondary low-speed permanent magnet disk 29. The transmission inner shaft 11 rotates with the motor, and the transmission inner shaft 11 drives the transmission outer cylinder 9 to rotate, and the transmission outer cylinder is connected to the first input shaft 18 of the disc-type axial reducer 15 to realize transmission.

[0052] It should be noted that the rotor yoke involved in the present invention is made of ferromagnetic material and is used to increase the magnetism of the inner permanent magnet ring. The rotor yoke can be constructed in a ring shape. The primary adjustment magnetic disk 22 and the secondary adjustment magnetic disk 28 are fixedly installed and do not rotate. The two have the same structure and are formed by embedding magnetic blocks in a non-magnetic disc skeleton. The magnetic blocks are distributed in an alternating array on the disc skeleton. The magnetic adjustment components involved in the present invention are all used to modulate the permanent magnet so that it transmits torque along the rotation direction according to the set transmission ratio. The primary high-speed permanent magnetic disk 21, the primary low-speed permanent magnetic disk 23, the secondary high-speed permanent magnetic disk 27 and the secondary low-speed permanent magnetic disk 29 have the same structure and are all composed of paired permanent magnet discs, and the permanent magnets of the permanent magnet discs are set to an "N / S" alternating array form, and the polarities of adjacent permanent magnets are opposite.

[0053] The number of permanent magnet pole pairs of the first-stage low-speed permanent magnet disk 23 is greater than that of the first-stage high-speed permanent magnet disk 21, and the number of permanent magnet pole pairs can have multiple combinations. Under the modulation of the first-stage modulation disk 22, the first-stage low-speed permanent magnet disk 23 transmits torque according to a fixed transmission ratio. The number of permanent magnet pole pairs of the second-stage low-speed permanent magnet disk 29 is greater than that of the second-stage high-speed permanent magnet disk 27, and the number of permanent magnet pole pairs can have multiple combinations. Under the modulation of the second-stage modulation disk 28, the second-stage low-speed permanent magnet disk 29 transmits torque according to a fixed transmission ratio, and a large transmission ratio torque transmission is achieved by adopting a two-stage series form.

[0054] The first input shaft 18, the first-level high-speed rotor yoke 20 and the first-level high-speed permanent magnet disk 21 are fixed together to form a first-level high-speed permanent magnet module, and the first-level high-speed permanent magnet module rotates with the rotation of the first input shaft 18. The first-level low-speed permanent magnet disk 23, the first-level low-speed rotor yoke 24 and the first intermediate connecting shaft 25 are fixed together to form a first-level low-speed permanent magnet module, and the first-level high-speed permanent magnet module drives the first-level low-speed permanent magnet module to rotate through magnetic force. The first intermediate connecting shaft 25, the second-level high-speed rotor yoke 26 and the second-level high-speed permanent magnet disk 27 are fixed together to form a second-level high-speed permanent magnet module, and the first-level low-speed permanent magnet module, the second-level high-speed permanent magnet module and the first intermediate connecting shaft 25 rotate synchronously as a whole coaxially. The second-level low-speed permanent magnet disk 29, the second-level low-speed rotor yoke 30 and the first output shaft 33 are fixed together to form a second-level low-speed permanent magnet module, and the second-level low-speed permanent magnet disk 29 drives the first output shaft 33 to rotate synchronously, thereby realizing continuous two-stage deceleration.

[0055] The disc-type axial reducer 15 further includes a front cover 19 , a housing 31 , and a rear cover 32 . The front cover 19 , the housing 31 , and the rear cover 32 form a receiving space for receiving the above components.

[0056] like Figure 1 , Fig.11 , Fig.12 , Fig.13 , Fig.14 and Fig.15As shown, the barrel-type axial reducer 16 includes a second input shaft 34 connected to the transmission outer barrel 9, a primary high-speed support ring 36 sleeved on the second input shaft 34, a primary high-speed permanent magnet ring 37 sleeved on the primary high-speed support ring 36, a second intermediate connecting shaft 42, a primary magnetic adjustment barrel 38, a primary intermediate supporting ring 39 sleeved on the second input shaft 34, a primary low-speed supporting ring 41 sleeved on the second intermediate connecting shaft 42, and a primary low-speed permanent magnet ring 40 sleeved on the outer periphery of the primary low-speed supporting ring 41. The primary magnetic adjustment barrel 38 is constructed as a cylindrical body, and the primary high-speed support ring 36, the primary high-speed permanent magnet ring 37, the intermediate supporting ring 39, the primary low-speed supporting ring 41, and the primary low-speed permanent magnet ring 40 are all arranged in the primary magnetic adjustment barrel 38 and have the same axis as the primary magnetic adjustment barrel 38. The second intermediate connecting shaft 42 drives the secondary high-speed support ring 43 to rotate coaxially.

[0057] The barrel-type axial reducer 16 further includes a secondary high-speed support ring 43 sleeved on the outer periphery of the second intermediate connecting shaft 42, a secondary high-speed permanent magnet ring 44 sleeved on the outer periphery of the secondary high-speed support ring 43, a secondary intermediate support ring 46 sleeved on the second intermediate connecting shaft 42, and a secondary magnetic adjustment cylinder 45. The secondary magnetic adjustment cylinder 45 has the same structure and arrangement as the primary magnetic adjustment cylinder 38. The secondary high-speed support ring 43, the secondary high-speed permanent magnet ring 44, the secondary low-speed permanent magnet ring 47, the secondary low-speed support ring 48, and the secondary intermediate support ring 46 are all arranged in the secondary magnetic adjustment cylinder 45 and are all coaxial with the secondary magnetic adjustment cylinder 45. The primary intermediate support ring 39 is arranged between the primary high-speed support ring 36 and the primary low-speed support ring 41, and the primary intermediate support ring 39 is used to fix and support the second input shaft 34.

[0058] The barrel-type axial reducer 16 further includes a second output shaft 51, a secondary low-speed support ring 48 sleeved on the second output shaft 51, and a secondary low-speed permanent magnet ring 47 sleeved on the secondary low-speed support ring 48. The second output shaft 51 is coaxial with the second intermediate connecting shaft 42. The secondary intermediate support ring 46 is arranged between the secondary high-speed support ring 43 and the secondary low-speed support ring 48, and is used to fix and support the second intermediate connecting shaft 42.

[0059] The barrel-type axial reducer 16 also includes a front cover 35, a housing 49 and a rear cover 50, which together form a storage space to accommodate all components. The housing 49 is constructed in a cylindrical shape, and the outer surfaces of the primary magnetic adjustment cylinder 38 and the secondary magnetic adjustment cylinder 45 are in contact with the inner surface of the housing 49. The primary magnetic adjustment cylinder 38 and the secondary magnetic adjustment cylinder 45 are fixedly installed on the inner wall of the housing 49 and do not rotate. The primary magnetic adjustment cylinder 38 and the secondary magnetic adjustment cylinder 45 have the same structure and function. Both are formed by embedding magnetic blocks in a non-magnetic cylindrical frame, and the magnetic blocks are alternately arrayed on the cylindrical frame.

[0060] It should be noted that the primary high-speed permanent magnet ring 37, the primary low-speed permanent magnet ring 40, the secondary high-speed permanent magnet ring 44 and the secondary low-speed permanent magnet ring 47 are all composed of paired permanent magnet rings, and the polarities of adjacent permanent magnets are opposite. The permanent magnets are arranged in an "N / S" alternating array form. The number of permanent magnet pole pairs of the primary low-speed permanent magnet ring 40 is greater than the number of permanent magnet pole pairs of the primary high-speed permanent magnet ring 37, and the number of permanent magnet pole pairs can have multiple combinations. Under the modulation of the primary magnetic adjustment cylinder 38, the primary low-speed permanent magnet ring 40 can transmit torque according to a fixed transmission ratio. The number of permanent magnet pole pairs of the secondary low-speed permanent magnet ring 47 is greater than the number of permanent magnet pole pairs of the secondary high-speed permanent magnet ring 44, and the number of permanent magnet pole pairs can have multiple combinations. Under the modulation of the secondary magnetic adjustment cylinder 45, the secondary low-speed permanent magnet ring 47 can transmit torque according to a fixed transmission ratio, and a large transmission ratio torque transmission is achieved by adopting a two-stage series form.

[0061] The second input shaft 34, the first-level high-speed support ring 36 and the first-level high-speed permanent magnet ring 37 are fixed together to form a first-level high-speed permanent magnet module, and the first-level high-speed permanent magnet module rotates with the rotation of the second input shaft 34. The first-level low-speed permanent magnet ring 40, the first-level low-speed support ring 41 and the second intermediate connecting shaft 42 are fixed together to form a first-level low-speed permanent magnet module, and the first-level high-speed permanent magnet module drives the first-level low-speed permanent magnet module to rotate through magnetic force. The second intermediate connecting shaft 42, the second-level high-speed support ring 43 and the second-level high-speed permanent magnet ring 44 are fixed together to form a second-level high-speed permanent magnet module. The first-level low-speed permanent magnet module, the second-level high-speed permanent magnet module and the second intermediate connecting shaft 42 rotate synchronously as a whole. . The second-level low-speed permanent magnet ring 47, the second-level low-speed support ring 48 and the second output shaft 51 are fixed together to form a second-level low-speed permanent magnet module, and the second-level low-speed permanent magnet ring 47 drives the second output shaft 51 to rotate synchronously, thereby realizing continuous two-stage deceleration.

[0062] like Figure 1 , Fig.16 and Fig.17 As shown, the barrel-type radial reducer 17 includes a third input shaft 52 connected to the transmission outer barrel 9, a primary inner rotor yoke 53 sleeved on the outer periphery of the third input shaft 52, a primary inner permanent magnet ring 54 sleeved on the outer periphery of the primary inner rotor yoke 53, a primary transmission magnetic adjustment ring 55 sleeved on the outer periphery of the primary inner rotor yoke 53, a primary outer permanent magnet ring 56 sleeved on the outer periphery of the primary transmission magnetic adjustment ring 55, the primary transmission magnetic adjustment ring 55 is connected to the third intermediate connecting shaft 57, a secondary inner rotor yoke 58 sleeved on the outer periphery of the third intermediate connecting shaft 57, a secondary inner permanent magnet ring 59 sleeved on the outer periphery of the secondary inner rotor yoke 58, a secondary transmission magnetic adjustment ring 60 sleeved on the outer periphery of the secondary inner permanent magnet ring 59, a secondary outer permanent magnet ring 61 sleeved on the outer periphery, and a third output shaft 63 coaxial with the third intermediate connecting shaft 57. The barrel-type radial reducer 17 also includes a housing 62 for accommodating the above-mentioned components.

[0063] The primary transmission magnetic adjustment ring 55 and the secondary transmission magnetic adjustment ring 60 are both formed by embedding magnetic blocks in a non-magnetic transmission ring frame, and the magnetic blocks are distributed in an alternating array in the non-magnetic transmission ring frame. The primary inner permanent magnet ring 54, the primary outer permanent magnet ring 56, the secondary inner permanent magnet ring 59 and the secondary outer permanent magnet ring 61 are all composed of paired permanent magnets, and the polarities of adjacent permanent magnets are opposite. The permanent magnets are arranged in an "N / S" alternating array form. The number of permanent magnet pole pairs of the primary outer permanent magnet ring 56 is greater than the number of permanent magnet pole pairs of the primary inner permanent magnet ring 54. The number of permanent magnet pole pairs can have multiple combinations. Under the modulation of the primary transmission magnetic adjustment ring 55, torque is transmitted according to a fixed transmission ratio.

[0064] The number of permanent magnet pole pairs of the secondary outer permanent magnet ring 61 is greater than that of the secondary inner permanent magnet ring 59. The number of permanent magnet pole pairs can have multiple combinations. Under the modulation of the secondary transmission magnetic adjustment ring 60, torque is transmitted according to a fixed transmission ratio, thereby achieving a large transmission ratio torque transmission through a two-stage series form.

[0065] The third input shaft 52, the first-stage inner rotor yoke 53 and the first-stage inner permanent magnet ring 54 are fixed together to form a first-stage inner permanent magnet module, which rotates with the rotation of the third input shaft 52. The third intermediate connecting shaft 57, the second-stage inner rotor yoke 58 and the second-stage inner permanent magnet ring 59 are fixed together to form a second-stage inner permanent magnet module, which rotates with the rotation of the third intermediate connecting shaft 57. The first-stage outer permanent magnet ring 56 and the second-stage outer permanent magnet ring 61 are both fixedly connected to the housing 62, and both cannot rotate. The first-stage transmission magnetic adjustment ring 55 and the second-stage transmission magnetic adjustment ring 60 rotate, so that the first-stage transmission magnetic adjustment ring 55 can drive the third intermediate connecting shaft 57 to rotate, and the second-stage transmission magnetic adjustment ring 60 can drive the third output shaft 63 to rotate, thereby realizing continuous two-stage deceleration. There is a gap between the transmission magnetic adjustment ring 55 and the first-stage inner rotor yoke 53, and there is a gap between the first-stage transmission magnetic adjustment ring 55 and the first-stage outer permanent magnet ring 56.

[0066] The magnetic reducer 2 adopts an axial two-stage series reduction structure. The axial series structure can reduce the radial size. The two-stage series can ensure that the reducer achieves a sufficient transmission ratio. The magnetic reducer 2 adopts non-contact transmission, so it does not need to be placed in the lubricating oil tank, and has a certain torque limiting function to enhance the service life. The use of magnetic transmission is more stable, and no destructive damage will occur when the torque exceeds the limit, which can effectively ensure the safety of the transmission mechanism.

[0067] like Figure 1 and Fig.18As shown, the magnetic reducer 2 is connected to the magnetic coupling 3 through an elastic coupling 64. The magnetic coupling 3 is constructed into a cylindrical structure, including an outer magnetic cylinder 65 and an inner magnetic cylinder 66 arranged in the outer magnetic cylinder 65. The output end of the magnetic reducer 2 is connected to the first end of the elastic coupling 64, the second end of the elastic coupling 64 is connected to the input end of the magnetic coupling 3, and the outer magnetic cylinder 65 is connected to the input end of the magnetic reducer 2, so as to realize the synchronous rotation of the outer magnetic cylinder 65 of the magnetic coupling 3 and the output end of the magnetic reducer 2. The inner magnetic cylinder 66 is installed on the main shaft 4 and encapsulated in the lubricating oil chamber. The outer magnetic cylinder 65 and the inner magnetic cylinder 66 are both composed of paired permanent magnets, and the polarities of adjacent permanent magnets are opposite. The permanent magnets are arranged in an "N / S" alternating array. The outer magnetic cylinder 65 and the inner magnetic cylinder 66 realize non-contact transmission through magnetic force. The outer magnetic cylinder 65 drives the inner magnetic cylinder 66 to rotate synchronously, and the inner magnetic cylinder 66 drives the main shaft 4 to rotate synchronously. The reliability and stability of the transmission can be guaranteed by adopting a cylinder structure.

[0068] like Figure 1 , Fig.19 , Fig. 20 , Fig.21 and Fig. 22 As shown, the valve head assembly 5 includes a stator 67, a rotor 68, a magnetic stopper 6 and a valve body housing 69. The rotor 68 is sleeved on the main shaft 4 and can rotate synchronously with the main shaft 4. It cooperates with the stator 67 to achieve the generation of pressure pulses. The magnetic limit device 6 includes a plurality of limit rods 71 ​​and a plurality of magnetic limit blocks 70, wherein the plurality of magnetic limit blocks 70 are evenly arranged in a circumferential form along the inner wall surface of the valve body housing 69, the limit rod 71 is evenly arranged in a circumferential form along the outer circumference of the rotor 68, and its first end is connected to the rotor 68, and the second end of the limit rod 71 is provided with a magnetic block 72, each magnetic block 72 is located between two magnetic limit blocks 70, and the magnetic block 72 and the two magnetic limit blocks 70 repel each other through magnetic repulsion, and when the limit rod 71 rotates with the rotor 68, when the magnetic block 72 approaches the magnetic limit block 70, under the action of the magnetic repulsion, the resistance load increases, and the output load of the motor 14 increases, thereby increasing the driving current in the circuit module 8, and the rotation of the rotor 68 can be controlled by detecting the rotation angle and current of the motor 14 through the circuit module 8. The present invention can prevent excessive impact through the magnetic limit device 6.

[0069] like Figure 1 , Fig.23 , Fig.24 and Fig.25As shown, the rotary pulse generator 100 using magnetic transmission described in the present invention also includes a circuit module 8, which includes a microprocessor 73, a current detection unit 74 electrically connected to the microprocessor 73, a control unit 76 and a resolver angle decoding unit 75, a drive unit 77 electrically connected to the control unit, a motor 14 connected to the drive unit 77, and a rotary transformer 7 electrically connected to the resolver angle decoding unit 75. The rotary transformer 7 is arranged on the output shaft of the motor 14. The rotary transformer 7 includes a transformer stator 79 and a transformer rotor 78. The output shaft of the motor 14 is connected to the transformer rotor 78 of the rotary transformer 7. The transformer stator 79 of the rotary transformer 7 is fixedly installed and does not rotate. The rotary transformer 7 can detect the rotation angle of the output shaft of the motor 14 through the rotation of the transformer rotor 78, and transmit it to the resolver angle decoding unit 75 in the form of information. The resolver angle decoding unit 75 decodes the rotation angle information and transmits it to the microprocessor 73. The limit rod 71 in the valve head assembly 5 rotates with the rotor 68. When it is close to the magnetic limit block 70, the output load of the motor 14 increases, so that the driving current in the circuit module 8 increases. The current detection unit 74 is used to detect and collect the current intensity data in the circuit module 8 and transmit it to the microprocessor 73.

[0070] The following is a brief description of the theoretical rotation angle and actual rotation angle of the motor 14 of the rotary pulse generator 100 using magnetic transmission. Theoretical rotation angle: Since the rotation output by the motor 14 needs to pass through a two-stage reduction structure, the theoretical transmission ratio is the product of the two-stage transmission ratio. The theoretical transmission angle of the rotary pulse generator 100 using magnetic transmission is the total angle of rotation of the motor 14 divided by the theoretical transmission ratio. The theoretical rotation angle obtained does not consider the transmission loss. Actual rotation angle: Since there will always be transmission loss in the transmission structure, directly setting the theoretical rotation angle of the rotary pulse generator 100 using magnetic transmission as the actual rotation angle will cause the output shaft of the motor 14 to fail to be transmitted in place. Therefore, in the actual setting, the actual rotation angle of the motor 14 is first increased by 10% of the margin, that is, the actual rotation angle is set to 1.1 times the theoretical rotation angle. The actual rotation angle is an initially set control quantity. After the rotation pulse generator 100 using magnetic transmission is working, it is necessary to combine the current change to determine whether the output shaft of the motor 14 has rotated to the correct position and the actual rotation angle. If the rotation angle of the output shaft of the motor 14 is obtained through the rotary transformer 7, the initial preset actual transmission angle is modified through the control circuit to be set to the rotation angle actually measured by the rotary transformer 7. This part is the process of changing the control quantity from the preset value to the circuit detection value.

[0071] The actual rotation angle of the motor 14 is set according to the need for the rotor 68 to rotate, and the theoretical rotation angle of the motor 14 is calculated in combination with the transmission ratio of the magnetic reducer 2. The threshold parameter of the rotation angle of the motor 14, the lower limit of the rotation angle of the motor 14 is the theoretical rotation angle of the motor 14, and the upper limit is the theoretical rotation angle of the motor 14 multiplied by 1.1, and the rotation of the output shaft of the motor 14 is regulated by detecting the change in current intensity.

[0072] For example, during the rotation of the rotor 68, when the rotor 68 is in the initial position, due to the repulsive force between the magnetic block 72 of the limit rod 71 and the magnetic limit block 70, the repulsive force can play an auxiliary starting role when the rotor 68 starts, thereby reducing the starting load and reducing the starting current intensity. After the rotor 68 starts to rotate, the current intensity is a stable current value, and when the rotor 68 rotates to near the limit block 70, the current will increase suddenly. When the current detection unit 74 recognizes the sudden increase in current intensity, the angle threshold range is judged by the actual rotation angle of the output shaft of the motor 14 collected by the rotary transformer 7. If the measured rotation angle of the output shaft of the motor 14 is greater than the theoretical rotation angle of the motor 14, the control signal is transmitted to the control unit 76 through the microprocessor 73, and the control unit 76 further controls the drive unit to drive the motor 14, so as to set the measured rotation angle of the output shaft of the motor 14 to control the subsequent rotation angle of the output shaft of the motor 14, thereby replacing the actual rotation angle of the output shaft of the motor 14 initially set in the circuit module 8. Accordingly, if the rotation angle of the output shaft of the motor 14 measured by the rotary transformer 7 is less than the theoretical rotation angle of the motor 14, it means that the output shaft of the motor 14 has not rotated to the right position. If the current intensity suddenly increases, the current intensity suddenly increases for 5 seconds. The microprocessor 73 can judge that the output shaft of the motor 14 is blocked, and then the control unit 76 can control the motor through the drive unit 77 to drive the motor output shaft to reset the output shaft of the motor 14, thereby preventing the rotor 68 from being blocked and the large current from continuing to work, causing the circuit and components to burn. Through the coordinated control of the circuit module 8 and the magnetic limit device 6, the rotation of the rotor 68 can be effectively regulated, and the stability and reliability of the control of the rotor 68 can be improved.

[0073] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A rotary pulse generator using magnetic transmission, comprising a transmission coupling, a magnetic reducer, a magnetic coupling, a main shaft and a valve head assembly which are sequentially connected in transmission, wherein the valve head assembly can rotate with the main shaft to realize pressure pulses, The transmission coupling includes a transmission outer cylinder, a transmission block and a transmission inner shaft arranged in the transmission outer cylinder, the transmission outer cylinder is provided with a plurality of outer grooves along the inner surface, the bottom of the outer grooves is configured as a magnetic end face, the end faces between the outer grooves are configured as magnetic end faces, and the magnetism is different from the magnetism of the end faces at the bottom of the outer grooves, the transmission inner shaft is provided with a plurality of inner grooves along its outer surface, the bottom of the inner grooves is configured as a magnetic end face, the transmission block is arranged between the outer grooves and the inner grooves, and the end face close to the transmission inner shaft is configured as a magnetic end face with the same magnetism as the end face at the bottom of the inner groove, and the end face close to the transmission outer cylinder is configured as a magnetic end face with different magnetism from the end face at the bottom of the outer groove.

2. The rotary pulse generator using magnetic transmission according to claim 1, characterized in that: The end of the transmission block close to the transmission inner shaft is constructed as a cylinder with a hexagonal cross section, the end of the transmission block close to the transmission outer cylinder is constructed as a hexagonal frustum, and the side surface of the transmission block is constructed as an arc surface.

3. The rotary pulse generator using magnetic transmission according to claim 1, characterized in that: The magnetic reducer includes a disc-type axial reducer, which includes a first input shaft, a first high-speed permanent magnet disk sleeved on the first input shaft, a first intermediate connecting shaft coaxial with the first input shaft, a first low-speed permanent magnet disk sleeved on the first intermediate connecting shaft, a second high-speed permanent magnet disk sleeved on the first intermediate connecting shaft, a first output shaft coaxial with the first intermediate connecting shaft, and a second low-speed permanent magnet disk sleeved on the first output shaft.

4. The rotary pulse generator using magnetic transmission according to claim 3, characterized in that: The disc-type axial reducer also includes a primary adjustment disk arranged between the primary high-speed permanent magnet disk and the primary low-speed permanent magnet disk and a secondary adjustment disk arranged between the secondary high-speed permanent magnet disk and the secondary low-speed permanent magnet disk.

5. The rotary pulse generator using magnetic transmission according to claim 1, characterized in that: The magnetic reducer includes a barrel-type axial reducer, which includes a second input shaft, a primary high-speed support ring sleeved on the second input shaft, a primary high-speed permanent magnet ring sleeved on the primary high-speed support ring, a second intermediate connecting shaft coaxial with the second input shaft, a primary low-speed support ring sleeved on the second intermediate connecting shaft, a primary low-speed permanent magnet ring sleeved on the outer periphery of the primary low-speed support ring, a secondary high-speed support ring sleeved on the outer periphery of the second intermediate connecting shaft, a secondary high-speed permanent magnet ring sleeved on the outer periphery of the secondary high-speed support ring, a second output shaft coaxial with the second intermediate connecting shaft, a secondary low-speed support ring sleeved on the second output shaft, and a secondary low-speed permanent magnet ring sleeved on the secondary low-speed support ring.

6. The rotary pulse generator using magnetic transmission according to claim 5, characterized in that: The barrel-type axial reducer also includes a primary intermediate support ring sleeved on the second input shaft and a secondary intermediate support ring sleeved on the second intermediate connecting shaft. The primary intermediate support ring is arranged between the primary high-speed support ring and the primary low-speed support ring, and the secondary intermediate support ring is arranged between the secondary high-speed support ring and the secondary low-speed support ring.

7. The rotary pulse generator using magnetic transmission according to claim 6, characterized in that: The barrel-type axial reducer also includes a primary magnetic adjustment cylinder and a secondary magnetic adjustment cylinder, both of which are fixed. The primary high-speed support ring, the primary high-speed permanent magnet ring, the intermediate support ring, the primary low-speed support ring, and the primary low-speed permanent magnet ring are all arranged in the primary magnetic adjustment cylinder and have the same axis as the primary magnetic adjustment cylinder. The secondary high-speed support ring, the secondary high-speed permanent magnet ring, the secondary low-speed permanent magnet ring, the secondary low-speed support ring, and the secondary intermediate support ring are all arranged in the secondary magnetic adjustment cylinder and are coaxial with the secondary magnetic adjustment cylinder.

8. The rotary pulse generator using magnetic transmission according to claim 1, characterized in that: The magnetic reducer includes a barrel-type radial reducer, which includes a third input shaft, a first-level inner rotor yoke sleeved on the outer circumference of the third input shaft, a first-level inner permanent magnet ring sleeved on the outer circumference of the first-level inner rotor yoke, a first-level transmission magnetizing ring sleeved on the outer circumference of the first-level inner rotor yoke, a first-level outer permanent magnet ring sleeved on the outer circumference of the first-level transmission magnetizing ring, a third intermediate connecting shaft coaxial with the third input shaft, a second-level inner rotor yoke sleeved on the outer circumference of the third intermediate connecting shaft, a second-level inner permanent magnet ring sleeved on the outer circumference of the second-level inner rotor yoke, a second-level transmission magnetizing ring sleeved on the outer circumference of the second-level inner permanent magnet ring, the second-level outer permanent magnet ring sleeved on the outer circumference of the second-level transmission magnetizing ring, and a third output shaft coaxial with the third intermediate connecting shaft.

9. The rotary pulse generator using magnetic transmission according to claim 1, characterized in that: The magnetic reducer is connected to the magnetic coupling through an elastic coupling, and the magnetic coupling includes an outer magnetic cylinder and an inner magnetic cylinder arranged in the outer magnetic cylinder. The output end of the magnetic reducer is connected to the first end of the elastic coupling, and the second end of the elastic coupling is connected to the input end of the magnetic coupling. The outer magnetic cylinder is connected to the input end of the magnetic reducer, and the inner magnetic cylinder is arranged on the main shaft. The outer magnetic cylinder can drive the inner magnetic cylinder to rotate synchronously, and the inner magnetic cylinder drives the main shaft to rotate synchronously.

10. The rotary pulse generator using magnetic transmission according to claim 9, characterized in that: The valve head assembly includes a stator, a rotor, a magnetic limit device and a valve body shell. The rotor is sleeved on the main shaft and can rotate synchronously with the main shaft. The magnetic limit device includes a plurality of limit rods and a plurality of magnetic limit blocks, wherein the magnetic limit blocks are arranged in a circular form along the inner wall surface of the valve body shell, the limit rods are arranged in a circular form along the outer circumference of the rotor, and a first end thereof is connected to the rotor, and a magnetic block is provided at the second end of the limit rod, and the magnetic block is located between the two magnetic limit blocks, and the magnetic block and the two magnetic limit blocks repel each other through magnetic repulsion.

11. The rotary pulse generator using magnetic transmission according to claim 10, characterized in that: The rotary pulse generator using magnetic transmission also includes a circuit module, which includes a microprocessor, a current detection unit connected to the microprocessor, a control unit and a resolver angle decoding unit, a drive unit connected to the control unit, a motor connected to the drive unit, and a rotary transformer connected to the resolver angle decoding unit. The rotary transformer is arranged on the motor output shaft. The rotary transformer can be used to detect the rotation angle of the motor output shaft and transmit it to the resolver angle decoding unit. The resolver angle decoding unit decodes the rotation angle and transmits it to the microprocessor. The current detection unit is used to detect the current intensity data in the circuit module and transmit it to the microprocessor.

Images