CN216132655U - Vibration testing device - Google Patents
Vibration testing device Download PDFInfo
- Publication number
- CN216132655U CN216132655U CN202121567545.2U CN202121567545U CN216132655U CN 216132655 U CN216132655 U CN 216132655U CN 202121567545 U CN202121567545 U CN 202121567545U CN 216132655 U CN216132655 U CN 216132655U
- Authority
- CN
- China
- Prior art keywords
- support
- vibration testing
- sliding
- testing device
- vibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 239000011148 porous material Substances 0.000 claims abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 10
- 230000002349 favourable effect Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000013522 software testing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a vibration testing device, and belongs to the technical field of vibration testing. This vibration testing arrangement, including vibration mechanism, vibration mechanism includes the base, the foundation is installed on the upper portion of base, the spring is installed on the upper portion of foundation, the hole groove has been seted up to the inside of foundation, the inner wall sliding clamping in hole groove has the guide bar, the side surface mounting of foundation has the fixed plate, the motor is installed on the upper portion of fixed plate, the dwang is installed to the output of motor, the bearing is installed to the other end of dwang, the inside at the foundation is installed through the pore to the bearing, the surface mounting of dwang has the cam, fixed establishment is installed on the upper portion of spring, fixed establishment includes the support, the upper surface at the spring is installed to the support, the loop bar is installed on the upper portion of support. The utility model can fix and vibrate the circuit board to be tested, which is beneficial to improving the practicability of the device and the diversity of the fixing modes and improving the testing efficiency.
Description
Technical Field
The utility model relates to the technical field of vibration testing, in particular to a vibration testing device.
Background
The circuit board is named as a ceramic circuit board, an alumina ceramic circuit board, an aluminum nitride ceramic circuit board, a PCB board, an aluminum substrate, a high-frequency board, a thick copper board, an impedance board, a PCB, an ultra-thin circuit board, a printed (copper etching technology) circuit board and the like. The circuit board makes the circuit miniaturized, direct-viewing, plays important effect to fixed circuit's batch production and optimization electrical apparatus overall arrangement, and the circuit board can be called printed wiring board or printed circuit board. At present, printed circuit boards are used in a large number, and many of the printed circuit boards are installed in a vibration environment, so that high requirements are met for the firm welding of electronic components on the circuit boards, and the electronic components on the circuit boards are all formed by welding and are easy to fall off due to shaking, so that vibration testing needs to be carried out on the printed circuit boards in the production process, and the stability of the electronic components on the circuit boards is ensured.
The existing vibration testing device is not convenient for fixing circuit boards with different sizes when testing the vibration of the circuit boards, is not beneficial to improving the practicability of the device and the diversity of the fixing mode, and is not beneficial to improving the testing efficiency.
SUMMERY OF THE UTILITY MODEL
In order to make up for the above deficiencies, the utility model provides a vibration testing device, which solves the problems that the prior vibration testing device is inconvenient to fix circuit boards with different sizes, is not beneficial to improving the practicability of the device and the diversity of fixing modes, and is not beneficial to improving the testing efficiency when the prior vibration testing device is used for testing the vibration of the circuit boards.
The utility model is realized by the following steps:
the utility model provides a vibration testing device, which comprises a vibration mechanism, wherein the vibration mechanism comprises a base, a bottom column is arranged at the upper part of the base, a spring is arranged at the upper part of the bottom column, a hole groove is arranged inside the bottom column, the inner wall of the hole groove is slidably clamped with a guide rod, which is favorable for ensuring the stability of the device, the side surface of the bottom column is provided with a fixed plate, the upper part of the fixed plate is provided with a motor which is a forward and reverse rotation speed reducing motor, the output end of the motor is provided with a rotating rod, the other end of the rotating rod is provided with a bearing, the bearing is arranged inside the bottom column through a pore channel, the surface of the rotating rod is provided with a cam, the fixed surface of cam has the rubber pad, is favorable to ensureing that the device does not receive the damage, fixed establishment is installed on the upper portion of spring, is convenient for fix the circuit board, is favorable to improving the practicality of device and the variety of fixed mode.
In an embodiment of the utility model, the fixing mechanism includes a support, the support is mounted on an upper surface of the spring, a loop bar is mounted on an upper portion of the support, a hand screw is connected to an upper portion of the loop bar through a threaded hole, a first sliding groove is formed in the loop bar, the first sliding groove is horizontally formed, and a sliding rod is slidably clamped in the first sliding groove.
In an embodiment of the utility model, a second sliding groove is formed in the surface of the support, a sliding block is slidably clamped in the second sliding groove, an L-shaped support plate is mounted on the upper portion of the sliding block, and the surface of the L-shaped support plate is fixed with the sliding rod.
In one embodiment of the utility model, the other end of the L-shaped support plate is provided with a clamping handle, the circuit board can be fixed through the clamping handle, the diversity of fixing modes is favorably improved, the surface of the L-shaped support plate is connected with a stud through a threaded hole in a threaded manner, the upper part of the stud is provided with a crank, the stud is convenient to rotate, the working efficiency is favorably improved, and the lower part of the stud is fixed with a rubber block, so that the circuit board is favorably prevented from being damaged during fixing.
In one embodiment of the utility model, the rubber layer is fixed on the support through the groove, the thickness of the rubber layer is not less than 2CM, the circuit board is protected from being damaged, and the upper surface of the rubber layer is flush with the upper surface of the support.
In one embodiment of the utility model, the upper end of the guide rod is fixed at the lower end of the support through a bolt, which is beneficial to ensuring better vibration of the support.
In one embodiment of the utility model, the support and the rotating rod are horizontally arranged, and the cam and the guide rod are vertically arranged, so that the stability of the device is ensured.
In an embodiment of the utility model, four groups of the first sliding chute and the second sliding chute are respectively arranged, so that the circuit board can be better fixed, the inner diameter of the first sliding chute is not smaller than the outer diameter of the sliding rod, the inner diameter of the second sliding chute is not smaller than the outer diameter of the sliding block, the distance can be better adjusted in a sliding manner, circuit boards with different sizes can be fixed, and the practicability of the device can be improved.
The utility model has the beneficial effects that: according to the vibration testing device obtained through the design, when the circuit board needs to be fixed before vibration testing, the circuit board is convenient to fix through the arrangement of the support, the loop bar, the first sliding chute, the sliding bar, the hand-screwed screw, the second sliding chute, the sliding block, the L-shaped support plate, the stud, the crank and the clamping handle, and the practicability of the device and the diversity of fixing modes are improved; when the circuit board needs to be subjected to vibration testing in the production process, the support is convenient to vibrate through the arrangement of the bottom column, the hole groove, the guide rod, the spring, the motor, the rotating rod and the cam, so that the circuit board is subjected to vibration testing, and the testing efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a perspective view of a vibration testing apparatus according to an embodiment of the present invention;
fig. 2 is a schematic front view of a vibration testing apparatus according to an embodiment of the present invention;
FIG. 3 is a side view of a vibration testing apparatus according to an embodiment of the present invention;
fig. 4 is a top view of a vibration testing apparatus according to an embodiment of the present invention.
In the figure: 100. a vibration mechanism; 101. a base; 102. a bottom pillar; 103. a hole groove; 104. a guide bar; 105. a spring; 106. a fixing plate; 107. a motor; 108. rotating the rod; 109. a cam; 200. a fixing mechanism; 201. a support; 202. a loop bar; 203. a first chute; 204. a slide bar; 205. screwing the screw by hand; 206. a second chute; 207. a slider; 208. an L-shaped support plate; 209. a rubber layer; 210. a stud; 211. a rubber block; 212. a crank; 213. and (5) clamping the hand.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Examples
Referring to fig. 1-4, the present invention provides a technical solution: a vibration testing device comprises a vibration mechanism 100, the vibration mechanism 100 comprises a base 101, a bottom column 102 is installed on the upper portion of the base 101, a spring 105 is installed on the upper portion of the bottom column 102, a hole groove 103 is formed in the bottom column 102, a guide rod 104 is connected to the inner wall of the hole groove 103 in a sliding and clamping mode and is beneficial to guaranteeing stability of the device, a fixing plate 106 is installed on the side surface of the bottom column 102, a motor 107 is installed on the upper portion of the fixing plate 106 and is a forward and reverse rotation speed reducing motor, a rotating rod 108 is installed at the output end of the motor 107, a bearing is installed at the other end of the rotating rod 108 and is installed in the bottom column 102 through a hole channel, a cam 109 is installed on the surface of the rotating rod 108, a rubber pad is fixed on the surface of the cam 109 and is beneficial to guaranteeing that the device is not damaged, when a circuit board needs to be subjected to vibration testing in a production process, the motor 107 is started to work, the output end of the motor 107 is driven by the rotating rod to rotate 108, further drive two cams 109 and carry out intermittent type nature striking simultaneously to the bottom of support 201, when cam 109 rotated to the bottom surface with support 201 and breaks away from, under spring 105 restoring force and support 201's self action of gravity, support 201 resumes to original state to carry out vibration test repeatedly to the circuit board, be favorable to improving efficiency of software testing, fixed establishment 200 is installed on spring 105's upper portion, be convenient for fix the circuit board, be favorable to improving the practicality of device and the variety of fixed mode.
The fixing mechanism 200 comprises a support 201, the support 201 is installed on the upper surface of the spring 105, a loop bar 202 is installed on the upper portion of the support 201, a hand screw 205 is connected to the upper portion of the loop bar 202 through a threaded hole in a threaded manner, a first sliding groove 203 is formed in the loop bar 202, the first sliding groove 203 is horizontally formed, and a sliding rod 204 is connected to the inner portion of the first sliding groove 203 in a sliding and clamping manner.
The surface of the support 201 is provided with a second chute 206, a slide block 207 is slidably clamped inside the second chute 206, an L-shaped support plate 208 is mounted on the upper part of the slide block 207, and the surface of the L-shaped support plate 208 is fixed with the slide rod 204.
The other end of the L-shaped support plate 208 is provided with a clamping handle 213, the circuit board can be fixed through the clamping handle 213, the diversity of fixing modes is favorably improved, the surface of the L-shaped support plate 208 is connected with a stud 210 through a threaded hole, the upper part of the stud 210 is provided with a crank 212, the stud 210 is convenient to rotate, the working efficiency is favorably improved, the lower part of the stud 210 is fixed with a rubber block 211, the circuit board is favorably protected from being damaged during fixing, when the circuit board needs to be fixed before vibration testing, the circuit board can be firstly placed on the surface of the support 201 to be positioned at the center of the rubber layer 209 through a mode, the four hand screws 205 are unscrewed by hand, the hand screws 205 are screwed after the slide bar 204 is pulled to slide in the first slide groove 203 to a proper distance, so as to fix the slide bar 204, the crank 212 is shaken by hand, the stud 210 and the rubber block 211 are rotated to be tightly attached to the surface of the circuit board, thereby fix the circuit board, perhaps through another kind of mode, hold the circuit board with a hand level earlier, make it be located the centre of tong 213, go into the tong 213 of left end with the left end card of circuit board, two hand-screw screws 205 of right-hand member are unscrewed to another hand, pulling slide bar 204 makes slide bar 204 slide in first spout 203 and go into the tong 213 back of right-hand member to the circuit board right-hand member card, screw up hand-screw screws 205, thereby fix the circuit board, above two kinds of modes can be selected according to self demand by oneself, be favorable to improving the practicality of device and the variety of fixed mode.
The support 201 is fixed with the rubber layer 209 through the recess, and the thickness of rubber layer 209 is not less than 2CM, is favorable to guaranteeing that the circuit board does not receive the damage, and the upper surface of rubber layer 209 flushes with the upper surface of support 201.
The upper end of the guide rod 104 is fixed at the lower end of the support 201 through a bolt, which is beneficial to ensuring better vibration of the support 201.
The first chute 203 and the second chute 206 are respectively provided with four groups, so that a better fixed circuit board is facilitated, the inner diameter of the first chute 203 is not smaller than the outer diameter of the sliding rod 204, the inner diameter of the second chute 206 is not smaller than the outer diameter of the sliding block 207, the sliding distance is facilitated to be adjusted better, circuit boards with different sizes are fixed, and the practicability of the device is improved.
Specifically, this vibration testing arrangement's theory of operation: when the circuit board needs to be fixed before the vibration test, the circuit board can be firstly placed on the surface of the support 201 to be located at the center position of the rubber layer 209, the four hand screws 205 are unscrewed by hands, the slide rod 204 is pulled to slide in the first sliding groove 203 to a proper distance, the hand screws 205 are screwed, so that the slide rod 204 is fixed, the crank 212 is shaken by hands, the stud 210 and the rubber block 211 are rotated to be attached to the surface of the circuit board, so that the circuit board is fixed, or in another way, the circuit board is horizontally dragged by one hand to be located in the middle of the clamp 213, the left end of the circuit board is clamped into the clamp 213 at the left end, the two hand screws 205 at the right end are unscrewed by the other hand, the slide rod 204 is pulled to slide in the first sliding groove 203 until the right end of the circuit board is clamped into the clamp 213 at the right end, the hand screws 205 are screwed, the circuit board is fixed, the two modes can be selected according to the requirements of the circuit board, and the practicability of the device and the diversity of the fixing modes are improved; when the in-process at production need carry out the vibration test to the circuit board, starter motor 107 work, the output of motor 107 rotates through driving dwang 108, further drive two cams 109 and carry out intermittent type nature striking simultaneously to the bottom of support 201, when cam 109 rotates the bottom surface with support 201 and breaks away from, under spring 105 restoring force and support 201's self action of gravity, support 201 resumes original state, thereby carry out the repeated vibration test to the circuit board, be favorable to improving efficiency of software testing.
It should be noted that the specific model specification of the motor 107 needs to be determined by model selection according to the actual specification of the device, and the specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.
The supply of the electric motor 107 and its principle will be clear to the skilled person and will not be described in detail here.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A vibration testing device comprising a vibration mechanism (100), characterized in that the vibration mechanism (100) comprises a base (101), a bottom column (102) is arranged at the upper part of the base (101), a spring (105) is arranged at the upper part of the bottom column (102), a hole groove (103) is arranged inside the bottom column (102), a guide rod (104) is clamped on the inner wall of the hole groove (103) in a sliding manner, a fixing plate (106) is arranged on the side surface of the bottom column (102), a motor (107) is arranged on the upper part of the fixing plate (106), the output end of the motor (107) is provided with a rotating rod (108), the other end of the rotating rod (108) is provided with a bearing, the bearing is arranged in the bottom column (102) through a pore channel, the surface mounting of dwang (108) has cam (109), fixed establishment (200) is installed on the upper portion of spring (105).
2. The vibration testing device according to claim 1, wherein the fixing mechanism (200) comprises a support (201), the support (201) is mounted on the upper surface of the spring (105), a loop bar (202) is mounted on the upper portion of the support (201), a hand screw (205) is connected to the upper portion of the loop bar (202) through a threaded hole in a threaded manner, a first sliding groove (203) is formed in the loop bar (202), and a sliding rod (204) is slidably clamped in the first sliding groove (203).
3. The vibration testing device according to claim 2, wherein a second sliding groove (206) is formed in the surface of the support (201), a sliding block (207) is slidably clamped in the second sliding groove (206), an L-shaped support plate (208) is mounted on the upper portion of the sliding block (207), and the surface of the L-shaped support plate (208) is fixed to the sliding rod (204).
4. The vibration testing device according to claim 3, characterized in that a clamping handle (213) is installed at the other end of the L-shaped support plate (208), a stud (210) is connected to the surface of the L-shaped support plate (208) through a threaded hole in a threaded manner, a crank (212) is installed at the upper part of the stud (210), and a rubber block (211) is fixed at the lower part of the stud (210).
5. A vibration testing device according to claim 2, wherein said support (201) is fixed with a rubber layer (209) through a groove, the thickness of said rubber layer (209) is not less than 2CM, and the upper surface of said rubber layer (209) is flush with the upper surface of said support (201).
6. A vibration testing device according to claim 1, wherein the upper end of the guide rod (104) is fixed to the lower end of the support (201) by means of bolts.
7. A vibration testing device according to claim 2, characterized in that the support (201) and the turning rod (108) are arranged horizontally and the cam (109) and the guiding rod (104) are arranged vertically.
8. A vibration testing device according to claim 2, wherein said first sliding groove (203) and said second sliding groove (206) are respectively provided with four sets, the inner diameter of said first sliding groove (203) is not smaller than the outer diameter of said sliding rod (204), and the inner diameter of said second sliding groove (206) is not smaller than the outer diameter of said sliding block (207).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121567545.2U CN216132655U (en) | 2021-07-09 | 2021-07-09 | Vibration testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121567545.2U CN216132655U (en) | 2021-07-09 | 2021-07-09 | Vibration testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216132655U true CN216132655U (en) | 2022-03-25 |
Family
ID=80767431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121567545.2U Expired - Fee Related CN216132655U (en) | 2021-07-09 | 2021-07-09 | Vibration testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216132655U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114608779A (en) * | 2022-05-16 | 2022-06-10 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Plate-level vibration test device and test method |
| CN115371929A (en) * | 2022-10-24 | 2022-11-22 | 常州中英科技股份有限公司 | Multilayer circuit board vibration stability detection device and detection method |
| CN116380388A (en) * | 2023-06-05 | 2023-07-04 | 江苏吉芯微电子科技有限公司 | Bare chip vibration testing device |
-
2021
- 2021-07-09 CN CN202121567545.2U patent/CN216132655U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114608779A (en) * | 2022-05-16 | 2022-06-10 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Plate-level vibration test device and test method |
| CN114608779B (en) * | 2022-05-16 | 2022-09-23 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Plate-level vibration test device and test method |
| CN115371929A (en) * | 2022-10-24 | 2022-11-22 | 常州中英科技股份有限公司 | Multilayer circuit board vibration stability detection device and detection method |
| CN116380388A (en) * | 2023-06-05 | 2023-07-04 | 江苏吉芯微电子科技有限公司 | Bare chip vibration testing device |
| CN116380388B (en) * | 2023-06-05 | 2023-09-22 | 江苏吉芯微电子科技有限公司 | Bare chip vibration testing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216132655U (en) | Vibration testing device | |
| CN205904734U (en) | PCB board boring grab | |
| CN218271300U (en) | Vibration testing device for integrated circuit | |
| CN205071483U (en) | PCB base plate automatically clamped device | |
| CN115988759A (en) | Electronic element dismounting device for waste circuit board | |
| CN211606965U (en) | Auxiliary processing device for printed circuit board production | |
| CN215499805U (en) | SMT printing paster anchor clamps | |
| CN212825837U (en) | Flexible circuit board processing device for fine circuit | |
| CN210986593U (en) | Can provide processingequipment for circuit board of screw in succession | |
| CN109688706B (en) | Drilling machine for back drilling of PCB | |
| CN211206701U (en) | Positioning device for chip pin detection | |
| CN219235510U (en) | Circuit board drilling device | |
| CN220352275U (en) | HDI circuit board through-hole electroplating device | |
| CN218341934U (en) | Clamping tool for processing multilayer circuit board | |
| CN219919509U (en) | Fingerprint lock integrated circuit board convenient to disassemble and assemble | |
| CN215144827U (en) | Drilling device for electronic component production and manufacturing | |
| CN216370870U (en) | Welding auxiliary clamp for mechanical design | |
| CN213457243U (en) | Clamp for durability test of circuit | |
| CN218497086U (en) | Positioning mechanism and electronic circuit detection device | |
| CN216700494U (en) | Lifting device for electrolyzing pcb (printed circuit board) | |
| CN217308003U (en) | Pin welding structure of single-pole five-throw switch chip | |
| CN215268919U (en) | Fixing device is used in processing of printed circuit board | |
| CN219443553U (en) | Large-scale metal part boring grab | |
| CN221329251U (en) | Clamping device for circuit board maintenance | |
| CN219581566U (en) | Device is tailor to circuit board pin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220325 |