CN113838698B - Intelligent control panel with intelligent bearing detection structure - Google Patents
Intelligent control panel with intelligent bearing detection structure Download PDFInfo
- Publication number
- CN113838698B CN113838698B CN202111106288.7A CN202111106288A CN113838698B CN 113838698 B CN113838698 B CN 113838698B CN 202111106288 A CN202111106288 A CN 202111106288A CN 113838698 B CN113838698 B CN 113838698B
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- control panel
- bearing
- circuit board
- fixing
- intelligent
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- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 230000033001 locomotion Effects 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/14—Operating parts, e.g. turn knob
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/04—Cases; Covers
Abstract
The invention discloses an intelligent control panel with an intelligent bearing detection structure, which comprises a control panel body, wherein one end of the control panel body is provided with a display screen, and the other end of the control panel body is provided with a speed regulation area; the speed regulation area is provided with a knob cap and a bearing, the bearing is rotationally connected with the control panel, the bottom of the knob cap is pressed into the bearing, and the bearing and the knob cap are in close tolerance fit and fixed. The knob cap is fixedly connected with a magnetic ring, the circuit board is fixedly provided with a Hall sensor, and the knob cap rotates to enable the magnetic ring and the Hall sensor to form relative movement; the circuit board is provided with two incremental rotary encoders with 90-degree phase difference, and the incremental rotary encoders are electrically connected with the circuit board. The intelligent bearing detection structure is formed by combining the fluency of the bearing and the detection accuracy of the Hall sensor, so that the problem that the detection accuracy is influenced by environmental factors is solved.
Description
Technical Field
The invention relates to the technical field of electronic element equipment, in particular to an intelligent control panel with an intelligent bearing detection structure.
Background
The intelligent control panel is a unit which utilizes the combination and programming of a control board and electronic components to realize the intelligent switch control of a circuit, and the control mode is simple and easy to realize, so that the intelligent control panel is adopted in the temperature control of a plurality of fresh air systems and floor heating systems.
The existing intelligent knob panel is usually subjected to temperature regulation and control by a shaft sleeve type rotary encoder, but the current shaft sleeve type knob encoder is quite swaying when in use, and output wave type abnormality can occur in a humid environment.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an intelligent control panel with an intelligent bearing detection structure, which aims to solve the problems that a shaft sleeve type knob encoder shakes very much when in use and an output waveform is abnormal in a humid environment.
The technical scheme adopted for solving the technical problems is as follows: an intelligent control panel with an intelligent bearing detection structure comprises a control panel body, wherein the control panel body is provided with a knob cap and a bearing, the bearing is rotationally connected with the control panel, the bottom of the knob cap is pressed into the bearing, and the bearing and the knob cap are in close tolerance fit and fixed; the knob cap is fixedly connected with a magnetic ring, the circuit board is fixedly provided with a Hall sensor, and the knob cap rotates to enable the magnetic ring and the Hall sensor to form relative movement; the circuit board is provided with two incremental rotary encoders with 90-degree phase difference, and the incremental rotary encoders are electrically connected with the circuit board.
As a further improvement of the invention: the control panel body is provided with a display screen, the Hall sensor is connected with a temperature controller, and the temperature controller is connected with the display screen.
As a further improvement of the invention: the magnetic ring is provided with a plurality of N poles and S poles, and the N poles and the S poles are arranged between the poles.
As a further improvement of the invention: the circuit board is fixed with the control panel through a fixing mechanism.
As a further improvement of the invention: the fixing mechanism comprises a fixing seat, the fixing seat is fixedly connected with the control panel, and the bearing is in sliding connection with the fixing seat.
As a further improvement of the invention: the fixing mechanism further comprises a first fixing plate, the first fixing plate is provided with a locating seat, the circuit board and the fixing seat are respectively provided with locating holes matched with the locating seat, and the locating seat is respectively clamped into the locating holes of the circuit board and the fixing seat, so that the circuit board and the fixing seat are fixed.
As a further improvement of the invention: the fixing mechanism further comprises a second fixing plate, a first fixing groove matched with the first fixing plate is formed in the upper end of the second fixing plate, a second fixing groove matched with the circuit board is formed in the lower end of the second fixing plate, the circuit board is clamped into the second fixing groove, the first fixing plate is clamped into the first fixing groove, and a positioning hole matched with the positioning seat is formed in the second fixing plate.
As a further improvement of the invention: the outer ring of the second fixing plate is matched with the inner ring of the knob cap.
As a further improvement of the invention: the first fixing plate is provided with a clamping seat, the clamping seat is of a U-shaped structure, the second fixing plate is provided with a through hole matched with the clamping seat, and the clamping seat penetrates through the through hole to be fixed with the circuit board.
As a further improvement of the invention: the top of the knob cap is provided with a protective cover.
As a further improvement of the invention: also included is a bearing detection method using the control panel, the method comprising the steps of:
s01: the Hall sensor records an initial value of the electric signal;
S02: rotating the knob cap to drive the magnetic ring to rotate;
s03: the Hall sensor senses the electric signal to obtain an electric signal difference value;
S04: the Hall sensor senses two incremental rotary encoders generating 90-degree phase difference electric signals, and detects whether the knob rotates clockwise or anticlockwise, so that positive and negative values of the electric signals are obtained;
s05: the Hall sensor sends the difference value and the positive and negative values of the electric signals to a temperature controller, and the temperature controller carries out numerical addition and subtraction on the temperature and sends the numerical addition and subtraction to a display screen.
Compared with the prior art, the invention has the beneficial effects that:
1. The rotary encoder is provided with the bearing, and the knob cap and the bearing are in close tolerance fit and fixed, so that compared with a traditional shaft sleeve type rotary encoder element, the rotary encoder has better smoothness, and meanwhile, the bearing has much lower shaking degree than the traditional shaft sleeve type rotary encoder element, and is more stable and firm in rotation speed regulation.
2. According to the invention, the knob cap is fixedly connected with the magnetic ring, the Hall sensor is fixed on the circuit board, the magnetic ring and the Hall sensor form relative movement through rotation of the knob cap, and the magnetic ring is detected through the Hall sensor, so that electrodeless gear control is realized.
3. According to the invention, two incremental rotary encoders are arranged on the circuit board to generate 90-degree phase difference electric signals, and the display screen can detect clockwise rotation or anticlockwise rotation according to the electric signals, so that the addition and subtraction of numerical values are performed.
4. The intelligent bearing detection structure is formed by combining the fluency of the bearing and the detection accuracy of the Hall sensor, so that the problem that the detection accuracy is influenced by environmental factors is solved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Detailed Description
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The invention will now be further described with reference to the accompanying drawings and examples:
Referring to fig. 1-3, an intelligent control panel with an intelligent bearing detection structure includes a control panel body 9, wherein one end of the control panel body 9 is provided with a display screen 91, and the other end is provided with a speed regulation area 92; the speed regulating area 92 is provided with a knob cap 7 and a bearing 6, the bearing 6 is rotationally connected with the control panel, the bottom of the knob cap 7 is pressed into the bearing 6, and the bearing 6 and the knob cap are in close tolerance fit and fixed.
The rotary knob cap is fixed with the bearing through close tolerance fit by the bearing 6, the bearing has better smoothness compared with the traditional shaft sleeve type rotary encoder element, and the bearing has much lower shaking degree compared with the traditional shaft sleeve type rotary encoder element, and is more stable and firm in rotation speed regulation.
The knob cap 7 is fixedly connected with the magnetic ring 1, the Hall sensor 2 is fixed on the circuit board 3, and the knob cap 7 rotates to enable the magnetic ring 1 and the Hall sensor 2 to form relative movement.
The circuit board is provided with two incremental rotary encoders with 90-degree phase difference, and the incremental rotary encoders are electrically connected with the circuit board.
The Hall sensor is connected with a temperature controller, and the temperature controller is connected with the display screen.
The magnetic ring 1 is fixed with the knob cap 7 through 3M glue.
The incremental rotary encoders can convert rotary motion into electric signals, when the knob cap is rotated, the two incremental rotary encoders on the circuit board generate 90-degree phase difference electric signals, and the display screen detects clockwise rotation or anticlockwise rotation according to the electric signals to conduct addition and subtraction of numerical values.
According to the invention, the magnetic ring 1 is fixedly connected to the knob cap 7, the Hall sensor 2 is fixed to the circuit board 3, the knob cap 7 rotates to enable the magnetic ring 1 and the Hall sensor 2 to move relatively, and the Hall sensor 2 detects the magnetic ring 1, so that stepless gear control is realized.
According to the invention, two incremental rotary encoders are arranged on the circuit board to generate 90-degree phase difference electric signals, and the display screen can detect clockwise rotation or anticlockwise rotation according to the electric signals, so that the addition and subtraction of numerical values are performed.
The magnetic ring 1 is provided with a plurality of N poles and S poles, and the N poles and the S poles are arranged between the poles.
The circuit board 3 is fixed with the control panel through a fixing mechanism.
The fixing mechanism comprises a fixing seat 84 fixedly connected with the control panel, and the bearing is slidably connected with the fixing seat.
The fixing mechanism further comprises a first fixing plate 82, the first fixing plate is provided with a positioning seat, the circuit board 3 and the fixing seat 84 are respectively provided with positioning holes adapted to the positioning seat, and the positioning seat is respectively clamped into the positioning holes of the circuit board 3 and the fixing seat 84, so that the circuit board and the fixing seat are fixed.
The fixing mechanism further comprises a second fixing plate 83, a first fixing groove matched with the first fixing plate is formed in the upper end of the second fixing plate, a second fixing groove matched with the circuit board 3 is formed in the lower end of the second fixing plate, the circuit board 3 is clamped into the second fixing groove, the first fixing plate 82 is clamped into the first fixing groove, and a positioning hole matched with the positioning seat is formed in the second fixing plate 83.
The outer ring of the second fixing plate 83 is matched with the inner ring of the knob cap 7.
The first fixing plate 82 is provided with a clamping seat, the clamping seat is of a U-shaped structure, the second fixing plate 83 is provided with a through hole matched with the clamping seat, and the clamping seat penetrates through the through hole to be fixed with the circuit board. The top of the knob cap 7 is provided with a protective cover 81.
The intelligent bearing detection structure is formed by combining the fluency of the bearing and the detection accuracy of the Hall sensor, so that the problem that the detection accuracy is influenced by environmental factors is solved.
The control panel body further includes a bearing detection method using the control panel, the method including the steps of:
s01: the Hall sensor records an initial value of the electric signal;
S02: rotating the knob cap to drive the magnetic ring to rotate;
s03: the Hall sensor senses the electric signal to obtain an electric signal difference value;
S04: the Hall sensor senses two incremental rotary encoders generating 90-degree phase difference electric signals, and detects whether the knob rotates clockwise or anticlockwise, so that positive and negative values of the electric signals are obtained;
s05: the Hall sensor sends the difference value and the positive and negative values of the electric signals to a temperature controller, and the temperature controller carries out numerical addition and subtraction on the temperature and sends the numerical addition and subtraction to a display screen.
The working principle of the invention is as follows:
Fixing the magnetic ring on the knob cap, fixing the Hall sensor on the circuit board, and pressing the bottom of the knob cap into the bearing; two incremental rotary encoders with 90 DEG phase difference are fixed on the circuit board, and the incremental rotary encoders can convert rotary motion into electric signals, so that the rotary knob is detected to rotate clockwise or anticlockwise. The Hall sensor records an initial value of an electric signal between the magnetic ring and the incremental rotary encoder; rotating the knob cap, wherein the knob cap drives the magnetic ring to rotate, so that the magnetic ring, the Hall sensor and the incremental rotary encoder perform relative movement; the Hall sensor senses an electric signal between the magnetic ring and the incremental rotary encoder to obtain an electric signal difference value; the Hall sensor senses two incremental rotary encoders generating 90-degree phase difference electric signals, and detects whether the knob rotates clockwise or anticlockwise, so that positive and negative values of the electric signals are obtained; the Hall sensor sends the difference value and the positive and negative values of the electric signals to a temperature controller, and the temperature controller carries out numerical addition and subtraction on the temperature and sends the numerical addition and subtraction to a display screen.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper end face", "lower end face", "top", "bottom", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present invention, and therefore should not be construed as limiting the actual use direction of the present invention.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
Claims (5)
1. Intelligent control panel with intelligent bearing detects structure, its characterized in that: the control panel comprises a control panel body, wherein the control panel body is provided with a knob cap and a bearing, the bearing is rotationally connected with the control panel, the bottom of the knob cap is pressed into the bearing, and the bearing and the knob cap are in close tolerance fit and fixed; the knob cap is fixedly connected with a magnetic ring, the circuit board is fixedly provided with a Hall sensor, and the knob cap rotates to enable the magnetic ring and the Hall sensor to form relative movement; the circuit board is provided with two incremental rotary encoders with 90-degree phase difference, and the incremental rotary encoders are electrically connected with the circuit board; the circuit board is fixed with the control panel through a fixing mechanism; the fixing mechanism comprises a fixing seat, the fixing seat is fixedly connected with the control panel, and the bearing is in sliding connection with the fixing seat; the fixing mechanism further comprises a first fixing plate, wherein the first fixing plate is provided with a positioning seat, the circuit board and the fixing seat are respectively provided with a positioning hole matched with the positioning seat, and the positioning seat is respectively clamped into the positioning holes of the circuit board and the fixing seat, so that the circuit board and the fixing seat are fixed; the fixing mechanism further comprises a second fixing plate, a first fixing groove matched with the first fixing plate is formed in the upper end of the second fixing plate, a second fixing groove matched with the circuit board is formed in the lower end of the second fixing plate, the circuit board is clamped into the second fixing groove, the first fixing plate is clamped into the first fixing groove, and a positioning hole matched with the positioning seat is formed in the second fixing plate; the outer ring of the second fixing plate is matched with the inner ring of the knob cap, and a protective cover is arranged at the top of the knob cap.
2. The intelligent control panel with intelligent bearing detection structure of claim 1, wherein: the control panel body is provided with a display screen, the Hall sensor is connected with a temperature controller, and the temperature controller is connected with the display screen.
3. An intelligent control panel with intelligent bearing detection architecture as claimed in claim 2, wherein: the magnetic ring is provided with a plurality of N poles and S poles, and the N poles and the S poles are arranged between the poles.
4. An intelligent control panel with intelligent bearing detection architecture as claimed in claim 3, wherein: the first fixing plate is provided with a clamping seat, the clamping seat is of a U-shaped structure, the second fixing plate is provided with a through hole matched with the clamping seat, and the clamping seat penetrates through the through hole to be fixed with the circuit board.
5. An intelligent control panel with intelligent bearing detection architecture according to any of claims 2-4, characterized in that: also included is a bearing detection method using the control panel, the method comprising the steps of:
s01: the Hall sensor records an initial value of the electric signal;
S02: rotating the knob cap to drive the magnetic ring to rotate;
s03: the Hall sensor senses the electric signal to obtain an electric signal difference value;
S04: the Hall sensor senses two incremental rotary encoders generating 90-degree phase difference electric signals, and detects whether the knob rotates clockwise or anticlockwise, so that positive and negative values of the electric signals are obtained;
s05: the Hall sensor sends the difference value and the positive and negative values of the electric signals to a temperature controller, and the temperature controller carries out numerical addition and subtraction on the temperature and sends the numerical addition and subtraction to a display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111106288.7A CN113838698B (en) | 2021-09-22 | 2021-09-22 | Intelligent control panel with intelligent bearing detection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111106288.7A CN113838698B (en) | 2021-09-22 | 2021-09-22 | Intelligent control panel with intelligent bearing detection structure |
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| Publication Number | Publication Date |
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| CN113838698A CN113838698A (en) | 2021-12-24 |
| CN113838698B true CN113838698B (en) | 2024-04-23 |
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| CN202111106288.7A Active CN113838698B (en) | 2021-09-22 | 2021-09-22 | Intelligent control panel with intelligent bearing detection structure |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10207400A1 (en) * | 2001-02-24 | 2002-09-05 | Marquardt Gmbh | Electrical rotary switch for adjusting angles of rotation has a rotor on a stator adjusting between angular rotary positions and moving a permanent magnetic field sensor and a Hall sensor to create a signal for an angle of rotation. |
| KR101509428B1 (en) * | 2013-11-27 | 2015-04-08 | 주식회사 인팩 | Rotation angle detection method and system in active roll corol device |
| CN207851664U (en) * | 2018-03-22 | 2018-09-11 | 青岛海尔智慧厨房电器有限公司 | A kind of magnetic control adjusting knob structure and household electrical appliance |
| CN210724483U (en) * | 2019-11-04 | 2020-06-09 | 徐州铭尊机电有限公司 | Hall installation mechanism |
| CN111964698A (en) * | 2020-09-18 | 2020-11-20 | 佛山市顺德区佳正能机械配件有限公司 | Electronic digital position display |
| CN111998872A (en) * | 2020-07-26 | 2020-11-27 | 哈尔滨理工大学 | Electrified coil magnetoelectric encoder and angle value temperature drift suppression method thereof |
| CN216015163U (en) * | 2021-09-22 | 2022-03-11 | 广州零六光电设备有限公司 | Intelligent control panel with intelligent bearing detection structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013014792A1 (en) * | 2013-09-09 | 2015-03-12 | Leopold Kostal Gmbh & Co. Kg | Screen-based vehicle operating system |
| EP3850917A1 (en) * | 2018-09-11 | 2021-07-21 | Lutron Technology Company LLC | Control device configured to provide visual feedback |
-
2021
- 2021-09-22 CN CN202111106288.7A patent/CN113838698B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10207400A1 (en) * | 2001-02-24 | 2002-09-05 | Marquardt Gmbh | Electrical rotary switch for adjusting angles of rotation has a rotor on a stator adjusting between angular rotary positions and moving a permanent magnetic field sensor and a Hall sensor to create a signal for an angle of rotation. |
| KR101509428B1 (en) * | 2013-11-27 | 2015-04-08 | 주식회사 인팩 | Rotation angle detection method and system in active roll corol device |
| CN207851664U (en) * | 2018-03-22 | 2018-09-11 | 青岛海尔智慧厨房电器有限公司 | A kind of magnetic control adjusting knob structure and household electrical appliance |
| CN210724483U (en) * | 2019-11-04 | 2020-06-09 | 徐州铭尊机电有限公司 | Hall installation mechanism |
| CN111998872A (en) * | 2020-07-26 | 2020-11-27 | 哈尔滨理工大学 | Electrified coil magnetoelectric encoder and angle value temperature drift suppression method thereof |
| CN111964698A (en) * | 2020-09-18 | 2020-11-20 | 佛山市顺德区佳正能机械配件有限公司 | Electronic digital position display |
| CN216015163U (en) * | 2021-09-22 | 2022-03-11 | 广州零六光电设备有限公司 | Intelligent control panel with intelligent bearing detection structure |
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| Publication number | Publication date |
|---|---|
| CN113838698A (en) | 2021-12-24 |
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