CN111702696A - Handheld electric screwdriver system - Google Patents
Handheld electric screwdriver system Download PDFInfo
- Publication number
- CN111702696A CN111702696A CN202010681686.0A CN202010681686A CN111702696A CN 111702696 A CN111702696 A CN 111702696A CN 202010681686 A CN202010681686 A CN 202010681686A CN 111702696 A CN111702696 A CN 111702696A
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- screwdriver
- sleeve
- power supply
- pin
- control unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model provides a hand-held type electric screwdriver system, including the screwdriver body, servo driver, power module and little the control unit MCU, wherein power module includes switching power supply and drive power supply, switching power supply is little the control unit MCU power supply, drive power supply is servo driver power supply, MCU control servo driver, servo driver drive screwdriver body establishes the servo motor drive in the screwdriver body. The handheld electric screwdriver system is provided with the micro control unit, the servo driver is controlled by the micro control unit, and the servo driver drives the servo motor in the screwdriver body to complete locking and paying actions; the micro control unit stores, backups and transmits the setting and parameters of the screwdriver locking process through various data interface networking, so that intelligent and numerical control operations such as remote management, data analysis and the like can be realized, and the applicable range and the digital development possibility of the whole system are improved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of automatic intelligent processing, in particular to a handheld electric screwdriver for screwing a screw and a system using the same.
[ background of the invention ]
In the technical field of automatic processing, a process of locking a screw by a machine on a mechanized production line is a high-precision, high-efficiency and high-stability tool process. Generally, a screw driver driven by a power distribution machine is arranged on a mechanical arm, and the screw to be screwed is automatically locked at a high speed. The screwdriver which is arranged on a movable mechanical arm, is driven by the mechanical arm as a whole and then is positioned to a preset station for processing and screwing is generally called an on-board screwdriver in the industry, and at present, a screwdriver which keeps a motor-driven screwdriver but is manually held by a person and moved for alignment is called a handheld electric screwdriver. The screwdriver has the advantages of flexibility, accuracy and high efficiency, the working position is manually aligned, the screw to be screwed is aligned, the motor drives the screwdriver head to rotate, and the screw is rotated to be screwed at a high speed. The method is widely applied to the product field with more variable and complex stations and higher requirements on precision and process.
However, most of the existing common hand-held electric screwdrivers on the market are driven by brush motors, and the brush motors have complicated structures, poor reliability, more faults, large maintenance workload, short service life and easy generation of electromagnetic interference by reversing sparks. Secondly, when the common hand-held electric screwdriver locks screws, due to the fact that the output motor passes through the reduction gear, the torsion deviation is large, and the locking consistency is poor, so that the locking abnormal conditions such as excessive torsion, damage or unlocking and the like occur when products are locked; finally, when the screwdriver screws downwards, the screwdriver head can be subjected to the upward impact force of the reaction, the impact force can bring large axial load to the speed reducer/motor, and the service life of the speed reducer/motor is greatly reduced in use. The most important point is that the existing hand-held screwdriver is only a screwing tool driven by a single motor to rotate, a micro control unit MCU/PLC and the like are not configured, the functions of torque recording, comparison, error correction, query and the like cannot be carried out, data cannot be backed up, and data cannot be reserved for calling.
[ summary of the invention ]
The handheld electric screwdriver system is simple in structure, good in reliability, low in failure rate and long in service life, axial load on a speed reducer/motor is greatly reduced, and impact is reduced.
The invention relates to a handheld electric screwdriver system which comprises a screwdriver body, a servo driver, a power supply module and a Micro Control Unit (MCU), wherein the power supply module comprises a switching power supply and a driving power supply, the switching power supply supplies power to the MCU, the driving power supply supplies power to the servo driver, the MCU controls the servo driver, the servo driver drives the screwdriver body, and the screwdriver body is internally provided with a servo motor for driving.
The MCU comprises a communication interface, wherein the communication interface comprises rs232, rs485, RJ45, an IO input port and an IO output port.
This hand-held type screwdriver system still includes the external device through bus connection, and this external device includes human-computer interface and sweeps a yard equipment, and this external device is connected with little the control unit MCU through rs232 and rs485 bus, and human-computer interface contains LCD display screen, touch-sensitive screen, entity button, LED pilot lamp, exchanges information through bus and communication interface and little the control unit MCU and controls and show.
After the code scanning equipment is connected with the equipment, specific information and the serial number are bound and stored through the workpiece serial number of the scanning equipment.
The system further comprises a single chip microcomputer PLC and a PC background, wherein the single chip microcomputer PLC is connected with the micro control unit MCU through a bus, the single chip microcomputer PLC controls the screw feeding system, data are uploaded to the PC background end through the single chip microcomputer PLC, and the PC background end is connected to the cloud end through the Ethernet.
The PC background can be connected to a mass system, a cloud end and the like through a firewall.
The switching power supply outputs three outputs of DC12V, DC5V and DC3.3V, wherein 3.3V supplies power for the MCU, a man-machine interface such as a handheld code scanning device is connected with the screwdriver device through rs232 and rs485 buses, after the code scanning device and the screwdriver device are connected by setting and reading parameters of the device operation, specific information and the serial number are bound through the workpiece serial number of the code scanning device and then stored.
The screwdriver body comprises a shell, a servo motor, a transmission part, an assembly part and a front end sleeve shell, and is characterized in that motor bases are arranged in the shell and the front end sleeve shell, the servo motor is arranged in the motor bases, the motor bases drive a batch rod sleeve through the transmission part, a tail section drive block is arranged in the batch rod sleeve, and the tail end of the batch rod is arranged in the batch rod sleeve and is in matched transmission with the tail section drive block; the transmission part is a long pin, a pin bush at the tail end of the long pin is in transmission fit with a rotating shaft of the servo motor, and a shaft of the long pin drives a batch rod bush; and an assembly part is arranged on the batch rod sleeve and comprises a deep groove ball bearing and a space ring.
The batched rod sleeve comprises a front end and a rear end, wherein a tail section driving block arranged in the front end of the batched rod sleeve comprises a driving pin and a cylindrical pin, and the rear end of the batched rod sleeve is a special-shaped shaft sleeve; the front end of the batch rod sleeve is provided with a pin hole, and the cylindrical pin penetrates through the pin hole on the batch rod sleeve body and fixes the transmission pin inside the front end of the batch rod sleeve; the shape of the inner hole at the rear end is matched with the shaft of the long pin, and the shaft of the long pin is inserted into the inner hole at the rear end of the baton rod sleeve for transmission.
The transmission pin is provided with a notch in the circumferential direction, the tail end of the adaptive batch rod is provided with a notch matched with the transmission pin, and the notch and the transmission pin are matched for transmission.
A rear space ring, a first deep groove ball bearing, an outer space ring, a second deep groove ball bearing and a front space ring are sequentially sleeved on the long pin and the batch rod sleeve in the motor base and the front casing, wherein the rear end surface of the rear space ring is clamped on the inner wall of the motor base, the first deep groove ball bearing, the outer space ring, the second deep groove ball bearing and the front space ring are sequentially and tightly assembled, and the front end surface of the front space ring is clamped, assembled and fixed by the front casing; the first deep groove ball bearing supports the motor base, and the second deep groove ball bearing supports the front end sleeve shell
Besides the front end sleeve shell, the batch rod sleeve is also sequentially sleeved with a locking sleeve, a compression spring, a dismounting sleeve and a customized steel wire check ring; the foremost end of the screwdriver rod sleeve is sleeved with a thread protective sleeve; and a thread protective sleeve is covered outside the front end casing.
The back end of the shell is provided with an aviation connector and a hook, so that the shell is convenient to hold and access a circuit; the shell is provided with a starting switch and a positive and negative switch key. The starting switch is electrically connected with the starting switch circuit board, and the positive and negative switch keys are electrically connected with the positive and negative switch circuit board.
The handheld electric screwdriver system is provided with the micro control unit, the servo driver is controlled by the micro control unit, and the servo driver drives the servo motor in the screwdriver body to complete locking and paying actions; the micro control unit stores, backups and transmits the setting and parameters of the screwdriver locking process through various data interface networking, so that intelligent and numerical control operations such as remote management, data analysis and the like can be realized, and the applicable range and the digital development possibility of the whole system are improved. And the transmission mode that the long shaft drives the screwdriver rod sleeve is adopted in the design in the screwdriver body, so that the long shaft provides a rotation driving force, the axial load on the servo motor is greatly reduced, the axial impact on the motor is avoided, and the service life of the motor is prolonged.
[ description of the drawings ]
Fig. 1 is a system block diagram of a hand-held power screwdriver system in accordance with the present invention;
FIG. 2 is a topology diagram of a hand-held power screwdriver system in accordance with the present invention;
fig. 3 is an overall structural view of a hand-held electric screwdriver body according to the present invention;
fig. 4 is an exploded view of a hand-held power screwdriver body according to the present invention;
fig. 5 is a cross-sectional view of a hand-held power screwdriver body in accordance with the present invention;
wherein: 10. A housing; 11. an aircraft joint; 12. hooking; 13. starting a switch; 14. a positive and negative switch key; 15. starting the switch circuit board; 16. a positive and negative switch circuit board; 20. a servo motor; 21. a motor base; 30. a long pin; 40. a batcher rod sleeve; 41. a pin hole; 51. a rear space ring; 52. a first deep groove ball bearing; 53. an outer space ring; 54. a second deep groove ball bearing; 55. a front end space ring; 60. A front end housing; 70. a tail gap driving block; 71. a tail is provided with a transmission pin; 72. a cylindrical pin; 80. a locking sleeve; 81. a compression spring; 82. disassembling the sleeve; 83. a steel wire retainer ring; 84. a thread protecting sleeve;
[ detailed description ] embodiments
The invention will be described in detail below with reference to the drawings, wherein examples of the embodiments are shown in the drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Referring to fig. 1 and fig. 2, a hand-held electric screwdriver system is shown in a system frame diagram and a topological diagram, and includes a screwdriver body, a servo driver, a power module and a micro control unit MCU, where the power module includes a switching power supply and a driving power supply, the switching power supply supplies power to the micro control unit MCU, the driving power supply supplies power to the servo driver, the MCU controls the servo driver, the servo driver drives the screwdriver body, and a servo motor is arranged in the screwdriver body.
The MCU comprises a communication interface, wherein the communication interface comprises rs232, rs485, RJ45, an IO input port and an IO output port.
This hand-held type screwdriver system still includes the external device through bus connection, and this external device includes human-computer interface and sweeps a yard equipment, and this external device is connected with little the control unit MCU through rs232 and rs485 bus, and human-computer interface contains LCD display screen, touch-sensitive screen, entity button, LED pilot lamp, exchanges information through bus and communication interface and little the control unit MCU and controls and show.
After the code scanning equipment is connected with the equipment, specific information and the serial number are bound and stored through the workpiece serial number of the scanning equipment.
The system further comprises a single chip microcomputer PLC and a PC background, wherein the single chip microcomputer PLC is connected with the micro control unit MCU through a bus, the single chip microcomputer PLC controls the screw feeding system, data are uploaded to the PC background end through the single chip microcomputer PLC, and the PC background end is connected to the cloud end through the Ethernet.
The PC background can be connected to a mass system, a cloud end and the like through a firewall.
The switching power supply outputs three outputs of DC12V, DC5V and DC3.3V, wherein 3.3V supplies power for the MCU, and a man-machine interface such as a handheld code scanning and the like is connected with the screwdriver system through rs232 and rs485 buses to set and read the running parameters of the equipment. After the code scanning device is connected with the screwdriver device, specific information and the serial number are bound through the workpiece serial number of the code scanning device and then stored.
Referring to fig. 3, there is shown an exploded view of the actual structure of the screwdriver body, which includes a casing 10, an aviation interface 11 disposed on the casing, a hook 13, a start switch 13, and a forward/reverse switch button 14. The shell is actually divided into a left shell and a right shell, the two sides are oppositely buckled to form the whole shell 10, a starting switch circuit board 15 is also arranged in the shell corresponding to a starting switch 13 on the shell, and a forward and reverse switch circuit board 16 is arranged in the shell corresponding to a forward and reverse switch key 14.
Inside the housing is a servo motor 20, drive components, fittings and a front end housing 60. A motor base 21 is arranged in the shell 10 and the front end sleeve shell 60, the servo motor 20 is arranged in the motor base 21, the motor base 21 drives the batch rod sleeve 40 through a transmission part, a tail section driving block 70 is arranged in the batch rod sleeve 40, and the tail end of a batch rod (not shown) is arranged in the batch rod sleeve 40 and is in matched transmission with the tail section driving block 70; an arbitrary electric screwdriver can adapt to the batch rods of various specifications and models, the models of screws which are locked according to needs are different, and the batch rods matched with the screws can be replaced at will, so that one electric screwdriver can have one set of corresponding batch rods, the tail ends of the batch rods can be kept consistent and can be matched with the tail gap driving block 70, and different batch rods in one set can be replaced at any time.
The transmission component is a long pin 30, a pin sleeve at the tail end of the long pin 30 is in transmission fit with a rotating shaft of the servo motor 20, and a shaft of the long pin 30 drives a batch rod sleeve 40; an assembly part is arranged on the batch rod sleeve 40, and the assembly part comprises a deep groove ball bearing and a spacing ring.
The baton rod sleeve 40 comprises a front end and a rear end, wherein a tail section driving block 70 arranged in the front end of the baton rod sleeve comprises a driving pin 71 and a cylindrical pin 72, and the rear end of the baton rod sleeve is a special-shaped shaft sleeve; a pin hole 41 is arranged at the front end of the batch rod sleeve 40, and the cylindrical pin 72 penetrates through the pin hole 41 on the batch rod sleeve 40 and fixes the driving pin 71 inside the front end of the batch rod sleeve 40; the shape of the inner hole at the rear end is matched with the shaft of the long pin 30, and the shaft of the long pin 30 is inserted into the inner hole at the rear end of the baton rod sleeve 40 for transmission.
The driving pin 71 is a pin with a notch in the circumferential direction, the tail end of the adaptive batch rod is provided with a notch matched with the driving pin 71, and the driving pin are matched for driving.
In the motor base 21 and the front end sleeve shell 60, a rear spacer ring 51, a first deep groove ball bearing 52, an outer spacer ring 53, a second deep groove ball bearing 54 and a front end spacer ring 55 are sequentially sleeved on the long pin 30 and the batch rod sleeve 40, wherein the rear end face of the rear spacer ring 51 is clamped on the inner wall of the motor base 21, the first deep groove ball bearing 52, the outer spacer ring 53, the second deep groove ball bearing 54 and the front end spacer ring 55 are sequentially tightly assembled, and the front end face of the front end spacer ring 55 is tightly assembled and fixed by the front end sleeve shell 60; the first deep groove ball bearing 52 holds the motor mount and the second deep groove ball bearing 54 holds the front end housing.
Outside the front end casing 60, a locking sleeve 80, a compression spring 81, a disassembly sleeve 82 and a customized steel wire retainer ring 83 are sequentially sleeved on the batch rod sleeve; the foremost end of the batch rod sleeve 40 is covered with a thread protection sleeve 84; a threaded protective sleeve 84 is also provided over the front end housing.
The handheld electric screwdriver system is provided with the micro control unit, the servo driver is controlled by the micro control unit, and the servo driver drives the servo motor in the screwdriver body to complete locking and paying actions; the micro control unit stores, backups and transmits the setting and parameters of the screwdriver locking process through various data interface networking, so that intelligent and numerical control operations such as remote management, data analysis and the like can be realized, and the applicable range and the digital development possibility of the whole system are improved. And the transmission mode that the long shaft drives the screwdriver rod sleeve is adopted in the design in the screwdriver body, so that the long shaft provides a rotation driving force, the axial load on the servo motor is greatly reduced, the axial impact on the motor is avoided, and the service life of the motor is prolonged.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a hand-held type electric screwdriver system, including the screwdriver body, servo driver, power module and little the control unit MCU, wherein power module includes switching power supply and drive power supply, switching power supply is little the control unit MCU power supply, drive power supply is servo driver power supply, MCU control servo driver, servo driver drive screwdriver body establishes the servo motor drive in the screwdriver body.
2. The hand-held electric screwdriver system as recited in claim 1, wherein the MCU comprises a communication interface comprising rs232, rs485, RJ45, IO input port and IO output port.
3. The hand-held electric screwdriver system as claimed in claim 1, further comprising an external device connected through a bus, wherein the external device comprises a human-computer interface and a code scanning device, the external device is connected with the micro control unit MCU through rs232 and rs485 buses, the human-computer interface comprises an LCD display screen, a touch screen, entity keys and an LED indicator light, and the human-computer interface exchanges information with the micro control unit MCU through the bus and a communication interface for control and display; the system further comprises a single chip microcomputer PLC and a PC background, wherein the single chip microcomputer PLC is connected with the micro control unit MCU through a bus, the single chip microcomputer PLC controls the screw feeding system, data are uploaded to the PC background end through the single chip microcomputer PLC, and the PC background end is connected to the cloud end through the Ethernet.
4. The hand-held electric screwdriver system as claimed in claim 1, wherein the switching power supply outputs three outputs of DC12V, DC5V and DC3.3V, wherein 3.3V supplies power to the micro control unit MCU, and man-machine interfaces such as hand-held code scanning are connected to the screwdriver device through rs232 and rs485 buses, and after the code scanning device and the screwdriver device are connected for setting and reading the parameters of the device operation, specific information is bound with the serial number through the workpiece serial number of the code scanning device and then stored.
5. The hand-held electric screwdriver system according to claim 1, wherein the screwdriver body comprises a shell, a servo motor, a transmission part, an assembly part and a front end sleeve shell, and is characterized in that a motor base is arranged in the shell and the front end sleeve shell, the servo motor is arranged in the motor base, the motor base drives a batch rod sleeve through the transmission part, a tail-lacking driving block is arranged in the batch rod sleeve, and the tail end of the batch rod is arranged in the batch rod sleeve and is matched with the tail-lacking driving block for transmission; the transmission part is a long pin, a pin bush at the tail end of the long pin is in transmission fit with a rotating shaft of the servo motor, and a shaft of the long pin drives a batch rod bush; and an assembly part is arranged on the batch rod sleeve and comprises a deep groove ball bearing and a space ring.
6. The hand-held power screwdriver system of claim 1, wherein the shank sleeve comprises a front end and a rear end, wherein the drive block of the tail section arranged in the front end comprises a driving pin and a cylindrical pin, and the rear end is a special-shaped shaft sleeve; the front end of the batch rod sleeve is provided with a pin hole, and the cylindrical pin penetrates through the pin hole on the batch rod sleeve body and fixes the transmission pin inside the front end of the batch rod sleeve; the shape of the inner hole at the rear end is matched with the shaft of the long pin, and the shaft of the long pin is inserted into the inner hole at the rear end of the baton rod sleeve for transmission.
7. The hand-held, powered screwdriver system as defined in claim 1 wherein said drive pin is notched in a circumferential direction and said adapted shank has a notch at an end thereof for mating with said drive pin for driving therewith.
8. The hand-held electric screwdriver system as claimed in claim 1, wherein a rear spacer ring, a first deep groove ball bearing, an outer spacer ring, a second deep groove ball bearing and a front spacer ring are sequentially sleeved on the long pin and the screwdriver rod sleeve in the motor base and the front casing, wherein the rear end face of the rear spacer ring is clamped on the inner wall of the motor base, the first deep groove ball bearing, the outer spacer ring, the second deep groove ball bearing and the front spacer ring are sequentially tightly assembled, and the front end face of the front spacer ring is tightly assembled and fixed by the front casing; the first deep groove ball bearing supports the motor base, and the second deep groove ball bearing supports the front end housing.
9. The hand-held electric screwdriver system as claimed in claim 1, wherein a locking sleeve, a compression spring, a detaching sleeve and a customized steel wire retaining ring are sequentially sleeved on the screwdriver sleeve besides the front-end sleeve; the foremost end of the screwdriver rod sleeve is sleeved with a thread protective sleeve; and a thread protective sleeve is covered outside the front end casing.
10. The hand-held power screwdriver system as recited in claim 1, further comprising an aviation connector and a hook at the rear end of the housing to facilitate handling and access to the circuitry; the shell is provided with a starting switch and a positive and negative switch key, the starting switch is electrically connected with the starting switch circuit board, and the positive and negative switch key is electrically connected with the positive and negative switch circuit board.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CN202010681686.0A CN111702696A (en) | 2020-07-15 | 2020-07-15 | Handheld electric screwdriver system |
DE212021000369.9U DE212021000369U1 (en) | 2020-07-15 | 2021-07-14 | Hand-held electric screwdriver system |
PCT/CN2021/106223 WO2022012584A1 (en) | 2020-07-15 | 2021-07-14 | Handheld electric screwdriver system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202010681686.0A CN111702696A (en) | 2020-07-15 | 2020-07-15 | Handheld electric screwdriver system |
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CN111702696A true CN111702696A (en) | 2020-09-25 |
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Family Applications (1)
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CN202010681686.0A Pending CN111702696A (en) | 2020-07-15 | 2020-07-15 | Handheld electric screwdriver system |
Country Status (3)
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CN (1) | CN111702696A (en) |
DE (1) | DE212021000369U1 (en) |
WO (1) | WO2022012584A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022012584A1 (en) * | 2020-07-15 | 2022-01-20 | 喜田(宁波)精机制造有限公司 | Handheld electric screwdriver system |
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- 2020-07-15 CN CN202010681686.0A patent/CN111702696A/en active Pending
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2021
- 2021-07-14 DE DE212021000369.9U patent/DE212021000369U1/en active Active
- 2021-07-14 WO PCT/CN2021/106223 patent/WO2022012584A1/en active Application Filing
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Also Published As
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WO2022012584A1 (en) | 2022-01-20 |
DE212021000369U1 (en) | 2023-01-12 |
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Effective date of registration: 20221114 Address after: 518000 5C, 5th floor, Yunsong building, 33 Tairan 8th Road, Tian'an community, Shatou street, Futian District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Aerte Precision Electronics Co.,Ltd. Address before: 518000 5D, Tairan Yunsong building, intersection of Binhe Road and Tairan ninth Road, Futian District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN AND ENGINEERING Co.,Ltd. |