CN109283479B - Mutual inductor detection and calibration equipment - Google Patents
Mutual inductor detection and calibration equipment Download PDFInfo
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- CN109283479B CN109283479B CN201811478279.9A CN201811478279A CN109283479B CN 109283479 B CN109283479 B CN 109283479B CN 201811478279 A CN201811478279 A CN 201811478279A CN 109283479 B CN109283479 B CN 109283479B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
Abstract
The invention relates to a mutual inductor detection and calibration device, belonging to the technical field of mutual inductor production equipment, the device comprises a fixed seat and a rotary detection table arranged on the fixed seat, a group of installation grooves with mutual inductors and a tool with a detection joint are arranged on the rotary detection table, a mutual inductor installation station, a detection station, a defective product elimination station, a qualified product identification station and a finished product taking station which are sequentially arranged along the transmission direction of the rotary detection table are arranged on the fixed seat in a closed loop manner, wedge grooves, stop grooves arranged at the front ends of the wedge grooves and magnets positioned below the wedge grooves are respectively arranged at two sides of the tool, a clamping block matched with the wedge grooves, a stop telescopic rod matched with the stop grooves and a magnetic sensor matched with the magnets are respectively arranged on the detection station, the defective product elimination station and the qualified product identification station, the clamping block is matched with the wedge grooves to support the tool from the rotary, the abrasion is prevented from being generated, and the normal work of other stations is not influenced.
Description
Technical Field
The invention belongs to the technical field of mutual inductor production equipment, and relates to detection equipment, in particular to mutual inductor detection and calibration equipment.
Background
The mutual-inductor equipment will carry out the one-by-one to its performance after the production is accomplished, traditional detection mode detects for putting the mutual-inductor one by one on each station, waste time and energy, work efficiency is extremely low, therefore, the detection mode of an assembly line has appeared, place the mutual-inductor on the conveyer belt through each station in proper order, nevertheless the mutual-inductor receives pressure on the conveyer belt in actual detection, the conveyer belt to constantly walking rubs, and decurrent power leads to the fact the impact to the conveyer belt, very easily cause the wearing and tearing of conveyer belt, the conveyer belt also produces great friction to the mutual-inductor simultaneously, the mutual-inductor hardly guarantees when detecting balancedly and influences the shell quality of mutual-inductor.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the mutual inductor detection and calibration equipment, each station forms a closed loop structure, the position of the mutual inductor is unified and the detected position is unified by utilizing the tool, the precision of the assembly line operation is provided, and when the mutual inductor arrives at the detection station, the tool provided with the mutual inductor is erected away from the surface of the rotary detection table, so that the rotary detection table cannot generate friction and pressure during detection, and the rotary detection table is prevented from being abraded.
The technical scheme adopted by the invention is as follows:
the transformer detection and calibration equipment is characterized by comprising a fixed seat, a rotary detection table arranged on the fixed seat, wherein a group of tool with a mounting groove and a detection joint of a transformer is arranged on the rotary detection table, a transformer mounting station, a detection station matched with the detection joint, a defective product eliminating station, a qualified product identification station and a finished product taking station are sequentially arranged on the fixed seat in a closed loop manner along the transmission direction of the rotary detection table, wedge grooves, stop grooves arranged at the front ends of the wedge grooves and magnets positioned below the wedge grooves are respectively arranged on two sides of the tool, clamping blocks positioned on the inner side and the outer side of the rotary detection table and matched with the wedge grooves, stop telescopic rods positioned on one side of the rotary detection table and matched with the stop grooves and magnetic sensors matched with the magnets are respectively arranged on the detection station, the defective product eliminating station and the qualified product identification station, the clamping block comprises arc blocks which are positioned at two sides of the rotary detection table, one side of each arc block is installed by means of a telescopic mechanism, and one side of each arc block is fixedly connected with the fixed seat, and the wedge-shaped grooves and the arc blocks are matched to form a separation assembly of the tool and the rotary detection table.
Mutual-inductor installation station including being located the gyration and detecting the mutual-inductor installation detection sensor directly over the platform, be located the gyration and detect the platform outside and the light curtain sensor that mutual-inductor installation detection sensor corresponds, mutual-inductor installation station on be provided with backstop telescopic link and magnetic sensor.
The detection station comprises a voltage-withstanding detection station, a voltage-sensing detection station, an inter-turn insulation performance detection station, a resistance detection station and a mutual inductor precision detection station which are sequentially arranged at intervals along the transmission direction, and each detection station is provided with a clamping block, a stop telescopic rod and a magnetic sensor.
Survey withstand voltage station include a set of withstand voltage test piece that sets up side by side and be located directly over the gyration detection platform with the help of elevating system, each withstand voltage test piece below is provided with grip block and magnetic sensor respectively, the backstop telescopic link be located the front end of surveying withstand voltage station, the rear end of surveying withstand voltage station is provided with the frock counter.
The station for measuring the inductance, the station for measuring the turn-to-turn insulation performance, the station for measuring the resistance and the station for measuring the precision of the mutual inductor respectively comprise an inductance tester, a pulse type turn-to-turn insulation tester, a resistance tester and a mutual inductor precision tester which are arranged by means of a lifting mechanism.
The defective product removing station comprises a manipulator arranged above the rotary detection table and a defective product recovery box arranged on the fixed seat, wherein the defective product recovery box comprises a group of recovery grids which correspond to the detection stations one by one.
The finished product taking station comprises a magnetic sensor, a stop telescopic rod and an empty tool detection sensor, wherein the magnetic sensor is positioned on one side of the rotary detection table, and the empty tool detection sensor is positioned above the rotary detection table.
The invention has the beneficial effects that: the rotary detection table is provided with a set of tool with a mounting groove and a detection joint of a mutual inductor, the fixed seat is provided with a mutual inductor mounting station, a detection station matched with the detection joint, a defective product removing station, a qualified product identification station and a finished product taking station which are sequentially arranged along the transmission direction of the rotary detection table in a closed loop manner, the mutual inductor is mounted on the tool, the tool drives the mutual inductor to sequentially pass through each station, and the tool standardizes and unifies the positions of the mutual inductor and the detected point, so that each detection station can rapidly and accurately detect the tool, and the detection efficiency and the detection precision are effectively improved; the frock both sides are provided with the wedge groove respectively, set up in the backstop groove of wedge groove front end and be located the magnet of wedge groove below, magnetic sensor detects the position at frock place with the supporting detection of magnet, then spacing with the frock by backstop telescopic link and backstop groove cooperation when entering into certain station and need carry out the operation to the mutual-inductor on this frock, prevent that it from continuing to advance, and grip block and wedge groove cooperation are put up the frock from the gyration and are detected the platform, produce impact force and wearing and tearing to the gyration when preventing the operation from pushing down, the normal work of detecting the platform and the normal walking of rear frock have been avoided influencing in the gyration, make the work of each station not influenced by the rear station, moreover, the steam generator is simple in structure, and.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic diagram of a resistance measuring station.
Fig. 3 is a schematic structural view of the tool.
Fig. 4 is a schematic view of the state before the clamping block is engaged with the wedge groove.
Fig. 5 is a schematic view showing a state in which the engagement of the clamp block with the wedge groove is completed.
In the attached drawings, 1, a rotary detection table, 2, a mutual inductor, 3, a mounting groove, 4, a detection joint, 5, a tool, 6, a mutual inductor mounting station, 7, a defective product removing station, 8, a qualified product identification station, 9, a finished product taking station, 10, a wedge-shaped groove, 11, a stop groove, 12, a magnet, 13, a stop telescopic rod, 14, an empty tool detection sensor, 15, an arc-shaped block, 16, a mutual inductor mounting detection sensor, 17, the device comprises a light curtain sensor, 18, a voltage-withstanding testing station, 19, a voltage-sensing testing station, 20, a turn-to-turn insulating performance testing station, 21, a resistance testing station, 22, a mutual inductor precision testing station, 23, a lifting mechanism, 24, a voltage-withstanding testing block, 25, a tool counter, 26, a manipulator, 27, a defective product recycling box, 28, a positioning column, 29, an electric wire inserting hole, 401, a first testing head, 402, a second testing head, 403 and a third testing head.
Detailed Description
The invention relates to a mutual inductor detection and calibration device, which is characterized by comprising a fixed seat, a rotary detection table 1 arranged on the fixed seat, wherein a group of installation grooves 3 with mutual inductors 2 and a tool 5 with a detection joint 4 are arranged on the rotary detection table 1, a mutual inductor installation station 6, a detection station matched with the detection joint 4, a defective product rejection station 7, a qualified product identification station 8 and a finished product taking station 9 are arranged on the fixed seat in a closed loop manner and are sequentially arranged along the transmission direction of the rotary detection table 1, wedge grooves 10, stop grooves 11 arranged at the front ends of the wedge grooves 10 and magnets 12 positioned below the wedge grooves 10 are respectively arranged on two sides of the tool 5, clamping blocks matched with the wedge grooves 10 and positioned on the inner side and the outer side of the rotary detection table 1, a telescopic rod 13 matched with the stop grooves 11 and a magnetic sensor matched with the magnets 12 are respectively arranged on the detection station, the defective product rejection station 7 and the qualified product identification station 8, the clamping block comprises arc blocks 15 which are positioned at two sides of the rotary detection table 1 and are fixedly connected with the fixing seat through the telescopic mechanism at one side, and the wedge-shaped groove 10 is matched with the arc blocks 15 to form a separation assembly of the tool 5 and the rotary detection table 1.
The following further description is made with reference to the drawings and specific examples.
In a specific embodiment, as shown in fig. 1 to 5, the detection stations include a voltage-withstanding detection station 18, an electrical-sensing detection station 19, an inter-turn insulation performance detection station 20, a resistance detection station 21, and a mutual inductor precision detection station 22, which are sequentially arranged along a transmission direction of the rotary detection table 1 at intervals, each detection station is provided with a clamping block, a stop telescopic rod 13, and a magnetic sensor, wherein the stop telescopic rod 13 is located at a front end of each detection station.
The tool 5 is used for loading the mutual inductor 2, the bottom of the mounting groove 3 of the tool 5 is made of aluminum alloy, and the conductivity of the aluminum alloy is good. Be provided with reference column 28 in the mounting groove 3, be provided with electric wire inserting hole 29 on the frock 5, the detection connects 4 and includes the first test head 401 of being connected with reference column 28 electricity, the second test head 402 of being connected with electric wire inserting hole 29 respectively, third test head 403, be provided with the through-hole on the mutual-inductor 2, make reference column 28 pass the through-hole on the mutual-inductor 2 during the installation, with mutual-inductor 2 just, the installation on mutual-inductor 2 and the frock 5 has been realized in inserting electric wire inserting hole 29 respectively to the negative pole wiring, still be provided with mutual-inductor 2 just on the frock 5, the draw-in groove of negative pole line, just, the negative pole line with mutual-inductor 2 is connected with electric wire inserting hole 29 behind the. During detection, the pressure-resistant testing station 18 is pressed downwards to detect the pressure resistance between the mutual inductor 2 and the positive and negative lines, whether the mutual inductor 2 is broken down or not is tested under the condition of high voltage, whether the pressure resistance is qualified or not is judged by the controller by sending a signal to the controller through a pressure-resistant testing instrument on the pressure-resistant testing station 18, which mutual inductor is qualified or unqualified, if the mutual inductor is qualified, the mutual inductor is detected through a rear station, if the mutual inductor is unqualified, the mutual inductor directly walks to the product rejection station 7, and the unqualified mutual inductor 2 is taken down at the defective product rejection; the inductor measuring station 19, the inter-turn insulation performance measuring station 20 and the resistor measuring station 21 are connected with the second test head 402 and the third test head 403 for testing, the transformer precision measuring station 22 supplies current to the first test head 401 and the positioning column 28 through the transformer precision tester, and the output voltage of the transformer 2 is detected through the second test head 402 and the third test head 403.
The bottom of the tool 5 is provided with a cavity for placing a connecting line between the detection joint 4 and the wire plugging hole 29, and the cavity is sealed by an end cover to enable the bottom of the tool 5 to be flush.
During operation, a switch of the rotary detection table 1 is turned on, the tool 5 without the mutual inductor is conveyed to a mutual inductor installation station 6, and the mutual inductor 2 is installed on the tool 5 by a worker. The mutual inductor installation station 6 comprises a mutual inductor installation detection sensor 16 positioned right above the rotary detection table 1 and a light curtain sensor 17 positioned outside the rotary detection table 1 and corresponding to the mutual inductor installation detection sensor 16, a stop telescopic rod 13 and a magnetic sensor are arranged on the mutual inductor installation station 6, when a tool 5 without the mutual inductor is arranged on the mutual inductor installation station 6 and the magnetic sensor senses a magnet 12 on the tool 5, a signal passing through the tool 5 is sent to a controller, the controller controls the stop telescopic rod 13 to extend to be matched with a stop groove 11 on the tool 5, so that the tool 5 stops transmission with the rotary detection table 1, a worker can conveniently take the mutual inductor 2 to place in an installation groove 3 on the tool 5, a wire insertion hole 29 is arranged on the tool 5, and installation of the mutual inductor 2 and the tool 5 is realized by inserting a positive and negative wiring of the mutual inductor 2 into the wire insertion hole 29, simultaneously be convenient for the later stage take off mutual-inductor 2 from frock 5. When the staff stretched the hand installation, light curtain sensor 17 was located staff's arm below, when the installation finished staff's hand was withdrawed, light curtain sensor 17 detected when not sheltered from, give the controller with signal transmission, when mutual-inductor installation detection sensor 16 detected that frock 5 that is located on mutual-inductor installation station 6 installs mutual-inductor 2 simultaneously, the controller could control the shrink of backstop telescopic link 13, let go to frock 5, just let go the frock and cause the installation not in place and cause the injury to the staff when preventing staff's arm from not withdrawing yet.
The tool 5 with the mutual inductor 2 installed continues to advance and travels to the pressure testing and resisting station 18, the rear end of the pressure testing and resisting station 18 is provided with a tool counter 25, when the mutual inductor 2 passes through, the tool counter 25 counts and sends a signal to the controller, the controller controls the extension of the stop telescopic rod 13 positioned at the front end of the pressure testing and resisting station 18 to stop the tool 5, the pressure testing and resisting station 18 comprises a group of pressure testing blocks 24 which are arranged side by means of the lifting mechanism 23 and are positioned right above the rotary detection table 1, in the embodiment, the four pressure testing blocks 24 are totally included, when the tool counter 25 counts four, the controller controls the extension mechanism in the clamping blocks to extend, so that the arc blocks 15 connected with the extension mechanism enter the wedge-shaped groove 10, the arc blocks 15 on the two sides act on the wedge-shaped groove 10 together, and the arc blocks 15 support the tool 5 by means of the upper surface of the wedge-shaped, make frock 5 break away from gyration and examine test table 1, controller control elevating system 23 drives withstand voltage test block 24 and moves down and contact with mutual-inductor 2 on the frock 5 afterwards, prevents to press down the in-process to the gyration and examine test table 1 production impact force and frock 5 and gyration and examine and produce huge friction between the test table 1, and telescopic machanism drives the shrink of arc piece 15, the shrink of backstop telescopic link 13 after detecting the completion, and frock 5 falls to continue to be conveyed on gyration is examined test table 1. If the pressure resistance of the mutual inductor 2 is qualified, the mutual inductor 2 is continuously conveyed and passes through other detection stations for detection, if the pressure resistance of the mutual inductor 2 is not qualified, the controller records that the mutual inductor 2 is not qualified, the other detection stations do not operate the tool 5 with the unqualified mutual inductor 2 when the tool 5 passes through the other detection stations, the tool 5 with the unqualified mutual inductor 2 directly travels to a defective product rejection station 7, and the unqualified mutual inductor 2 is taken down at the defective product rejection station 7.
The qualified mutual inductor 2 sequentially passes through a detection sensing station 19, a turn-to-turn insulation performance measuring station 20, a resistance measuring station 21 and a mutual inductor precision measuring station 22, when the qualified mutual inductor passes through each station, a magnetic sensor of the station senses a magnet 12 on a belt tool 5, a controller controls a stop telescopic rod 13 of the station to extend to stop the tool 5, then a clamping block separates the tool 5 from a rotary detection table 1, the station starts detection, after the detection is finished, if the detection is qualified, the detection of the next detection station is continued, and if the detection is not qualified, the device directly walks to a defective product removing station 7. The inductance measuring station 19, the interturn insulation performance measuring station 20, the resistance measuring station 21 and the mutual inductor precision measuring station 22 respectively comprise an inductance tester, an impulse type interturn insulation tester, a resistance tester and a mutual inductor precision tester which are arranged by means of a lifting mechanism 23, and the inductance tester, the impulse type interturn insulation tester, the resistance tester and the mutual inductor precision tester respectively have lifting freedom degrees by means of respective lifting mechanisms 23 so as to contact with detection joints on the tool 5 to detect various performances of the mutual inductor 2. Only after the release of the tooling 5 in the current detection station, the rear detection station can release the tooling 5 in the station.
The defective product removing station 7 comprises a manipulator 26 and a defective product recycling box 27, the manipulator 26 is arranged above the rotary detection table 1 through a mounting frame, the defective product recycling box 27 is arranged on the fixing base, the defective product recycling box 27 comprises a group of recycling grids which correspond to the detection stations one to one, when the tool 5 with the unqualified mutual inductor 2 reaches the defective product removing station 7, the stopping telescopic rod 13 of the station works to intercept the tool 5, the manipulator 26 takes down the unqualified mutual inductor 2, and the unqualified mutual inductor 2 is placed in the recycling grid matched with the unqualified mutual inductor. Due to the matching of the magnets 12 and the magnetic sensors, the controller can clearly record the positions of the tools 5, and is convenient for judging the unqualified items of the mutual inductor 2 on the tools 5 passing through the defective product removing station 7.
The frock 5 that is equipped with qualified mutual-inductor 2 is spacing and is broken away from gyration and detects platform 1 by the grip block through qualified product identification station 8, backstop telescopic link 13 in qualified product identification station 8, and qualified product identification station 8 marks or pastes the two-dimensional code to qualified mutual-inductor 2.
And then the tool 5 provided with the identified mutual inductor 2 travels to a finished product taking station 9, the mutual inductor 2 is taken down by a worker, and the empty tool 5 continues to advance to a mutual inductor mounting station 6 for the next cycle.
Finished product station 9 of taking including being located the gyration and detecting the magnetic sensor of 1 one side of platform, backstop telescopic link 13 and being located the gyration and detecting the empty frock detection sensor 14 of platform 1 top, when the frock 5 that has mutual-inductor 2 walked to the finished product when taking station 9, magnetic sensor senses behind the frock 5, controller control backstop telescopic link 13 stretches out and blocks frock 5, treat that the staff takes off back with mutual-inductor 2, the empty frock detection sensor 14 that is located this empty frock 5 top senses frock 5 and is vacant, then backstop telescopic link 13 withdraws, block next frock 5 immediately.
The mutual inductor installation detection sensor 16 and the empty tool detection sensor 14 are both reflection-type optical fiber sensors, the working principle is that one optical fiber transmitting light source strikes an object to be reflected, then the other optical fiber receiving light source receives light, and whether the mutual inductor 2 is installed in the tool 5 or not is judged according to the number of the receiving light sources. And the optical fiber amplifier is matched with the optical fiber sensor for use, and can select an output signal mode.
The mutual inductor detection and calibration equipment adopts a rotary transmission mode, the tools 5 are always transmitted on the rotary detection table 1, the next period is immediately started after one period is finished, the number of the required tools 5 is small, and the working efficiency is high; the cooperation of the magnets 12 and the magnetic sensors on the stations enables the controller to clearly record the performance and the position of the mutual inductor 2 installed in each tool 5, and the subsequent detection of unqualified products is reduced; the cooperation of grip block and wedge groove 10 leaves the clearance between the upper surface that detects platform 1 with the gyration when making frock 5 pressurized, and contactless between the two has reduced frock 5, the impaired condition of gyration detection platform 1 and has taken place, has effectively improved the detection precision of mutual-inductor 2 and frock 5, the life of gyration detection platform 1.
Claims (7)
1. Mutual-inductor detects check-up equipment, its characterized in that: the equipment comprises a fixing seat, a rotary detection table (1) arranged on the fixing seat, wherein a group of installation grooves (3) with mutual inductors (2) and a tool (5) for detecting joints (4) are arranged on the rotary detection table (1), mutual inductor installation stations (6) which are sequentially arranged along the transmission direction of the rotary detection table (1), detection stations matched with the detection joints (4), defective product rejection stations (7), qualified product identification stations (8) and finished product taking stations (9) are arranged on the fixing seat in a closed loop mode, wedge grooves (10), stop grooves (11) arranged at the front ends of the wedge grooves (10) and magnets (12) located below the wedge grooves (10) are respectively arranged on two sides of the tool (5), wedge blocks, clamping blocks and clamping blocks, and clamping blocks, wherein the clamping blocks are located on the inner side and the outer side of the rotary detection table (1) and matched with the wedge grooves (10), and the detection stations, the defective product rejection stations (7) and, Lie in the gyration and detect supporting backstop telescopic link (13) of platform (1) one side and backstop groove (11) and with the supporting magnetic sensor of magnet (12), the grip block including lie in arc piece (15) of gyration detection platform (1) both sides, wherein one side arc piece (15) link firmly with the fixing base with the help of telescopic machanism installation, opposite side arc piece (15), wedge groove (10) and arc piece (15) cooperation form frock (5) and the rotation and detect the separator assembly of platform (1).
2. The transformer detection and verification device of claim 1, wherein: mutual-inductor installation station (6) including being located the gyration and detecting mutual-inductor installation detection sensor (16) directly over platform (1), be located the gyration and detect light curtain sensor (17) that platform (1) outside and mutual-inductor installation detection sensor (16) correspond, mutual-inductor installation station (6) on be provided with backstop telescopic link (13) and magnetic sensor.
3. The transformer detection and verification device of claim 1, wherein: the detection station comprises a voltage-withstanding detection station (18), an inductance detection station (19), an inter-turn insulation performance detection station (20), a resistance detection station (21) and a mutual inductor precision detection station (22) which are sequentially arranged at intervals along the transmission direction, and each detection station is provided with a clamping block, a stop telescopic rod (13) and a magnetic sensor.
4. The transformer detection verification device of claim 3, wherein: survey withstand voltage station (18) including a set of withstand voltage test piece (24) that set up side by side and lie in directly over gyration detection platform (1) with the help of elevating system (23), each withstand voltage test piece (24) below is provided with grip block and magnetic sensor respectively, backstop telescopic link (13) be located the front end of surveying withstand voltage station (18), the rear end of surveying withstand voltage station (18) is provided with frock counter (25).
5. The transformer detection verification device of claim 3, wherein: the electricity detection sensing station (19), the interturn insulation performance measurement station (20), the resistance measurement station (21) and the mutual inductor precision measurement station (22) respectively comprise an inductance tester, a pulse type interturn insulation tester, a resistance tester and a mutual inductor precision tester which are arranged by means of a lifting mechanism (23).
6. The transformer detection and verification device of claim 1, wherein: the defective product removing station (7) comprises a manipulator (26) arranged above the rotary detection table (1) and a defective product recovery box (27) arranged on the fixed seat, wherein the defective product recovery box (27) comprises a group of recovery grids which correspond to the detection stations one by one.
7. The transformer detection and verification device of claim 1, wherein: the finished product taking station (9) comprises a magnetic sensor, a stop telescopic rod (13) and an empty tool detection sensor (14), wherein the magnetic sensor is positioned on one side of the rotary detection table (1), and the empty tool detection sensor is positioned above the rotary detection table (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811478279.9A CN109283479B (en) | 2018-12-05 | 2018-12-05 | Mutual inductor detection and calibration equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811478279.9A CN109283479B (en) | 2018-12-05 | 2018-12-05 | Mutual inductor detection and calibration equipment |
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| CN109283479A CN109283479A (en) | 2019-01-29 |
| CN109283479B true CN109283479B (en) | 2020-11-17 |
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| CN111438068A (en) * | 2020-04-13 | 2020-07-24 | 沧州师范学院 | Be used for lamps and lanterns fault detection system |
| CN114289351B (en) * | 2021-12-30 | 2022-12-13 | 江苏二互电气有限公司 | Power frequency withstand voltage retest tool for mutual inductor |
| CN117199895B (en) * | 2023-11-06 | 2024-01-26 | 河南溪亭电力设备有限公司 | Wiring mechanism for mutual inductor detection |
| CN117244823B (en) * | 2023-11-17 | 2024-02-09 | 江苏京沂电器有限公司 | Mutual inductor integrated detection sorting table |
| CN117434490B (en) * | 2023-12-16 | 2024-03-08 | 佛山市明富兴金属材料有限公司 | Mutual inductor test sorting unit |
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Effective date of registration: 20220129 Address after: 052300 cangxin transit road machinery parts market, Xinji Shibei District, Shijiazhuang City, Hebei Province Patentee after: HEBEI SHENKE ELECTRIC POWER CO.,LTD. Patentee after: HEBEI SHENKE ELECTRONICS Co.,Ltd. Patentee after: Hebei Shenke magnetic materials Co.,Ltd. Patentee after: Hebei Shenke Intelligent Manufacturing Co.,Ltd. Patentee after: Hebei Shenke mould Co.,Ltd. Patentee after: Shenke Technology Group Co.,Ltd. Address before: 052360 Cangxin Transit Road Machinery Parts Market, North District, Xinji City, Shijiazhuang City, Hebei Province Patentee before: HEBEI SHENKE ELECTRIC POWER CO.,LTD. |
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Denomination of invention: Transformer detection and calibration equipment Effective date of registration: 20220505 Granted publication date: 20201117 Pledgee: China Construction Bank Corporation Xinji sub branch Pledgor: Hebei Shenke magnetic materials Co.,Ltd.|Hebei Shenke mould Co.,Ltd.|Hebei Shenke Intelligent Manufacturing Co.,Ltd.|HEBEI SHENKE ELECTRONICS Co.,Ltd.|Shenke Technology Group Co.,Ltd.|HEBEI SHENKE ELECTRIC POWER CO.,LTD. Registration number: Y2022130000029 |
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Date of cancellation: 20230822 Granted publication date: 20201117 Pledgee: China Construction Bank Corporation Xinji sub branch Pledgor: HEBEI SHENKE ELECTRONICS Co.,Ltd.|HEBEI SHENKE ELECTRIC POWER CO.,LTD.|Hebei Shenke magnetic materials Co.,Ltd.|Hebei Shenke Intelligent Manufacturing Co.,Ltd.|Hebei Shenke mould Co.,Ltd.|Shenke Technology Group Co.,Ltd. Registration number: Y2022130000029 |