CN110470885A - A kind of Hall current sensor of strong antijamming capability - Google Patents
A kind of Hall current sensor of strong antijamming capability Download PDFInfo
- Publication number
- CN110470885A CN110470885A CN201910797811.1A CN201910797811A CN110470885A CN 110470885 A CN110470885 A CN 110470885A CN 201910797811 A CN201910797811 A CN 201910797811A CN 110470885 A CN110470885 A CN 110470885A
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- fixedly connected
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- current sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measuring Magnetic Variables (AREA)
Abstract
The present invention relates to sensor technical fields, and disclose a kind of Hall current sensor of strong antijamming capability, including U-shaped silicon steel sheet and shell, shell is open-topped hollow structure, support plate is connected in shell, and it is connected between support plate and shell by buffer gear, support plate is fixedly connected with support rod close to the upper surface of one end, the other end of support rod is rotatably connected to PCB circuit board by shaft, and it is connected between PCB circuit board and support plate by correcting mechanism, the upper surface of PCB circuit board is fixedly connected there are two symmetrical mounting blocks, and the upper surface of mounting blocks open up it is fluted, matched convex block is fixedly connected at the position of the both ends respective slot of U-shaped silicon steel sheet bottom, and the slot bottom of side and groove of the convex block far from U-shaped silicon steel sheet offsets.The Hall current sensor of the strong antijamming capability, facilitates installation and the correcting current of Hall current sensor, and has good impact resistance.
Description
Technical field
The present invention relates to sensor technical field, specially a kind of Hall current sensor of strong antijamming capability.
Background technique
Sensor is that various parameters are sent into computer system, carries out the front end of intellectual monitoring, control.With science and technology
Development, digitlization, Networked Sensors become technology with the advantage that its traditional approach is incomparable using increasingly extensive gradually
Trend and mainstream.
In recent years, power semiconductor of new generation largely enters power electronics, ac variable frequency speed regulation, inverter and opens
The fields such as powered-down source, Hall current, voltage sensor are the measurement control electric current to grow up the nearly more than ten years, a new generation of voltage
Commercial power quantity sensor is a kind of novel electrical detecting element of high-performance, utilizes same Hall sensor transmitter mould
Block detecting element both can detecte exchange or can detecte direct current, it might even be possible to detect transient peak, thus be substitution mutual inductor
With the new generation product of current divider, but in the prior art, Hall current sensor volume is not big, easy to install and fixed, needs
Additional element correcting current, and current sensor uses ferrite magnetic material, and shock resistance and vibration ability are poor.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of Hall current sensor of strong antijamming capability, have
Facilitate installation, be convenient for the advantages that calibration and strong shock resistance, solves in the prior art, Hall current sensor volume
Greatly, not easy to install and fixed, additional element correcting current is needed, and current sensor uses ferrite magnetic material, anti-impact
Hit the problem with vibration ability difference.
(2) technical solution
Facilitate installation, for realization is above-mentioned convenient for the purpose of calibration and strong shock resistance, the present invention provides following technology
Scheme: a kind of Hall current sensor of strong antijamming capability, including U-shaped silicon steel sheet and shell, the shell are top opening
Hollow structure, be connected with support plate in the shell, and be connected between support plate and shell by buffer gear, institute
It states support plate and is fixedly connected with support rod close to the upper surface of one end, the other end of the support rod is rotatably connected to by shaft
PCB circuit board, and be connected between PCB circuit board and support plate by correcting mechanism, the upper surface of the PCB circuit board is fixed
There are two symmetrical mounting blocks for connection, and the upper surface of mounting blocks opens up fluted, the both ends pair of the U-shaped silicon steel sheet bottom
It answers and is fixedly connected with matched convex block at the position of groove, and the slot bottom of side and groove of the convex block far from U-shaped silicon steel sheet offsets,
The indentation, there of the U-shaped silicon steel sheet is equipped with Hall element, and Hall element is electrically mounted in PCB circuit board, and two described convex
Card slot is offered in the phase back side wall of block, the inner wall of the groove corresponds to and offers loose slot at the position of card slot, the work
The slot bottom of dynamic slot is fixedly connected with the first spring, and the other end of first spring is fixedly connected with the fixture block with pocket matches,
And fixture block is slidably connected with loose slot, the setting in curved surface of the one end of the fixture block far from the first spring, and extends in card slot, institute
It states fixture block and is fixedly connected with pull rod close to the side of loose slot slot bottom, the other end of the pull rod passes through the first spring and through work
The slot bottom of dynamic slot extends outwardly, and the slot bottom of pull rod and loose slot is slidably connected.
Preferably, the correcting mechanism includes the T-type sliding slot for being provided with support plate upper surface, and sliding connects in T-type sliding slot
It is connected to matched T-type sliding block, the upper surface of the T-type sliding block is fixedly connected with movable block, and the upper surface of the support plate is close
It is fixedly connected with fixed block at the position of support rod, adjusting screw rod is rotatably connected to by bearing on the side wall of the fixed block,
The other end of the adjusting screw rod is arranged through movable block, and adjusting screw rod is threadedly coupled with movable block, the movable block it is upper
Surface is hinged with connecting rod, and the other end of the connecting rod and the lower surface of PCB circuit board are hinged.
Preferably, the buffer gear includes multiple slide bars for being fixedly connected on support plate lower surface, and multiple slide bars are equal
Even distribution, the lower surface of the enclosure interior correspond to and are fixedly connected with matched slide cartridge at the position of slide bar, and the slide bar is separate
One end of support plate extends in slide cartridge and is fixedly connected with second spring, and slide bar is slidably connected with slide cartridge, second bullet
Spring is fixedly connected on the lower surface inside slide cartridge far from one end of slide bar.
Preferably, the pull rod is fixedly connected with pull ring far from one end of fixture block.
Preferably, the T-type sliding block offers ball grooves, and the company of rolling in ball grooves close to the side of T-type sliding slot slot bottom
It is connected to ball, the ball passes through the notch of ball grooves far from one end of ball grooves slot bottom and extends outwardly, and rolls and be connected to T
The slot bottom of type sliding slot.
Preferably, the adjusting screw rod is fixedly connected with turning handle far from one end of bearing.
Preferably, the both ends of the support plate are fixedly connected to gag lever post, and the other end of the gag lever post is fixedly mounted
There is idler wheel, the inner wall of the shell corresponds to and offers matched roller groove at the position of idler wheel, and idler wheel and roller groove roll and connect
It connects.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of Hall current sensors of strong antijamming capability, have following
The utility model has the advantages that
1, the Hall current sensor of the strong antijamming capability, by be arranged U-shaped silicon steel sheet, PCB circuit board, mounting blocks,
Groove, convex block, card slot, loose slot, the first spring, fixture block and pull rod correspond to two convex blocks on U-shaped silicon steel sheet on mounting blocks
Groove location, push U-shaped silicon steel sheet, the curved surface of fixture block makes fixture block towards the slot bottom direction of loose slot under the extruding of convex block
The first spring is slided and compresses, when the slot bottom of convex block and groove contradicts, the first spring resets, and fixture block is sprung into card slot
Clamping is completed, the installation between U-shaped silicon steel sheet and PCB circuit board can be completed, pulls pull rod that fixture block is driven to slide into loose slot,
It is detached from fixture block and card slot, U-shaped silicon steel sheet can be disassembled, facilitate tearing open between U-shaped silicon steel sheet and PCB circuit board
Dress, to facilitate the installation of Hall current sensor.
2, the Hall current sensor of the strong antijamming capability, by the way that PCB circuit board, support rod, T-type sliding slot, T-type is arranged
Sliding block, movable block, adjusting screw rod and connecting rod rotate adjusting screw rod, drive the movable block of threaded connection to move, to drive T-type
Sliding block drives hinged connecting rod along T-type sliding slot synchronous slide, movable block, to make to occur between PCB circuit board and support rod
Angular deflection, the angle by regulating and controlling PCB circuit board calibrate electric current, facilitate operation.
3, the Hall current sensor of the strong antijamming capability, by the way that U-shaped silicon steel sheet, support plate, slide bar, the second bullet is arranged
Spring and slide cartridge increase the shock strength of current sensor using U-shaped silicon steel sheet, and guarantee system is applicable in the extreme circumstances, and
And current sensor by impact force when, band moving slide-bar and slide cartridge between symmetrical sliding occurs, by second spring to impact
Power is buffered, and Hall current sensor is made to have good impact resistance.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the Hall current sensor of strong antijamming capability proposed by the present invention；
Fig. 2 is the enlarged drawing of part A in Fig. 1；
Fig. 3 is the enlarged drawing of part B in Fig. 1；
Fig. 4 is the enlarged drawing of C portion in Fig. 1.
In figure: 1 U-shaped silicon steel sheet, 2 shells, 3 support plates, 4 support rods, 5 PCB circuit board, 6 mounting blocks, 7 grooves, 8 convex
Block, 9 Hall elements, 10 card slots, 11 loose slots, 12 first springs, 13 fixture blocks, 14 pull rods, 15 T-type sliding slots, 16 T-type sliding blocks,
17 movable blocks, 18 fixed blocks, 19 adjusting screw rods, 20 connecting rods, 21 slide bars, 22 slide cartridges, 23 second springs, 24 pull rings, 25 ball grooves,
26 balls, 27 turning handles, 28 gag lever posts, 29 idler wheels, 30 roller grooves.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-4, a kind of Hall current sensor of strong antijamming capability, including U-shaped silicon steel sheet 1 and shell 2, shell
Body 2 is open-topped hollow structure, is connected with support plate 3 in shell 2, and pass through buffering between support plate 3 and shell 2
Mechanism is connected, and support plate 3 is fixedly connected with support rod 4 close to the upper surface of one end, and the other end of support rod 4 is turned by shaft
It is dynamic to be connected with PCB circuit board 5, and be connected between PCB circuit board 5 and support plate 3 by correcting mechanism, PCB circuit board 5 it is upper
Surface is fixedly connected there are two symmetrical mounting blocks 6, and the upper surface of mounting blocks 6 opens up fluted 7, U-shaped 1 bottom of silicon steel sheet
Both ends respective slot 7 position at be fixedly connected with matched convex block 8, and side of the convex block 8 far from U-shaped silicon steel sheet 1 with it is recessed
The slot bottom of slot 7 offsets, and the indentation, there of U-shaped silicon steel sheet 1 is equipped with Hall element 9, and Hall element 9 is electrically mounted on PCB circuit board 5
On, offer card slot 10 in the phase back side wall of two convex blocks 8, the inner wall of groove 7 corresponds to and offers work at the position of card slot 10
Dynamic slot 11, the slot bottom of loose slot 11 are fixedly connected with the first spring 12, and the other end of the first spring 12 is fixedly connected with and card slot
10 matched fixture blocks 13, and fixture block 13 is slidably connected with loose slot 11, the one end of fixture block 13 far from the first spring 12 is in curved surface to be set
Set, and extend in card slot 10, fixture block 13 is fixedly connected with pull rod 14 close to the side of 11 slot bottom of loose slot, pull rod 14 it is another
It holds across the first spring 12 and extends outwardly through the slot bottom of loose slot 11, and the slot bottom of pull rod 14 and loose slot 11 slides and connects
It connects, by 7 position of groove on the corresponding mounting blocks 6 of two convex blocks 8 on U-shaped silicon steel sheet 1, pushes U-shaped silicon steel sheet 1, fixture block 13
Curved surface slides fixture block 13 towards the slot bottom direction of loose slot 11 and compresses the first spring 12, work as convex block under the extruding of convex block 8
8 with the slot bottom of groove 7 when contradicting, and the first spring 12 resets, and fixture block 13 is sprung into and completes clamping in card slot 10, can be completed
Installation between U-shaped silicon steel sheet 1 and PCB circuit board 5 pulls pull rod 14 that fixture block 13 is driven to slide into loose slot 11, makes fixture block 13
It is detached from card slot 10, U-shaped silicon steel sheet 1 can be disassembled, facilitate the dismounting between U-shaped silicon steel sheet 1 and PCB circuit board 5,
To facilitate the installation of Hall current sensor.
Correcting mechanism includes the T-type sliding slot 15 for being provided with 3 upper surface of support plate, and is slidably connected in T-type sliding slot 15
The T-type sliding block 16 matched, the upper surface of T-type sliding block 16 are fixedly connected with movable block 17, and the upper surface of support plate 3 is close to support rod 4
Position at be fixedly connected with fixed block 18, adjusting screw rod 19 is rotatably connected to by bearing on the side wall of fixed block 18, is adjusted
The other end of screw rod 19 is arranged through movable block 17, and adjusting screw rod 19 is threadedly coupled with movable block 17, the upper table of movable block 17
Face is hinged with connecting rod 20, and the other end of connecting rod 20 and the lower surface of PCB circuit board 5 are hinged, and rotates adjusting screw rod 19, drives spiral shell
The movable block 17 of line connection moves, to drive T-type sliding block 16 along 15 synchronous slide of T-type sliding slot, movable block 17 is driven hingedly
Connecting rod 20 pass through the angle pair of regulation PCB circuit board 5 to make that angular deflection occurs between PCB circuit board 5 and support rod 4
Electric current is calibrated, and operation is facilitated.
Buffer gear includes multiple slide bars 21 for being fixedly connected on 3 lower surface of support plate, and multiple slide bars 21 are uniformly distributed,
Lower surface inside shell 2 corresponds to and is fixedly connected with matched slide cartridge 22 at the position of slide bar 21, and slide bar 21 is far from support plate 3
One end extends in slide cartridge 22 and is fixedly connected with second spring 23, and slide bar 21 is slidably connected with slide cartridge 22, second spring 23
One end far from slide bar 21 is fixedly connected on the lower surface inside slide cartridge 22, increases current sensor using U-shaped silicon steel sheet 1
Shock strength, guarantee system are applicable in the extreme circumstances, and when current sensor is by impact force, band moving slide-bar 21 and slide cartridge
Symmetrical sliding occurs between 22, impact force is buffered by second spring 23, has Hall current sensor well
Impact resistance.
Pull rod 14 is fixedly connected with pull ring 24 far from one end of fixture block 13, facilitates and pull rod 14 is driven to slide.
T-type sliding block 16 offers ball grooves 25 close to the side of 15 slot bottom of T-type sliding slot, and rolls and be connected in ball grooves 25
Ball 26, ball 26 passes through the notch of ball grooves 25 far from one end of 25 slot bottom of ball grooves and extends outwardly, and rolls and be connected to T
The slot bottom of type sliding slot 15 reduces the frictional force between T-type sliding block 16 and T-type sliding slot 15.
Adjusting screw rod 19 is fixedly connected with turning handle 27 far from one end of bearing, facilitates the rotation for controlling to adjust screw rod 19.
The both ends of support plate 3 are fixedly connected to gag lever post 28, and the other end of gag lever post 28 is fixedly installed with idler wheel 29, shell
The inner wall of body 2 corresponds to and offers matched roller groove 30 at the position of idler wheel 29, and idler wheel 29 and roller groove 30 are rolled and connected, side
Just the lifting of support plate 3 is limited, slide bar 21 is avoided to be detached from slide cartridge 22.
In conclusion the Hall current sensor of the strong antijamming capability, corresponding by two convex blocks 8 on U-shaped silicon steel sheet 1
7 position of groove on mounting blocks 6 pushes U-shaped silicon steel sheet 1, the curved surface of fixture block 13 under the extruding of convex block 8, make fixture block 13 towards
The first spring 12 is slided and is compressed in the slot bottom direction of loose slot 11, when the slot bottom of convex block 8 and groove 7 contradicts, the first spring 12
It resets, fixture block 13 is sprung into and completes to be clamped in card slot 10, the peace between U-shaped silicon steel sheet 1 and PCB circuit board 5 can be completed
Dress pulls pull rod 14 that fixture block 13 is driven to slide into loose slot 11, is detached from fixture block 13 and card slot 10, can tear U-shaped silicon steel sheet 1 open
It unloads down, facilitates the dismounting between U-shaped silicon steel sheet 1 and PCB circuit board 5, to facilitate the installation of Hall current sensor；
Adjusting screw rod 19 is rotated, the movable block 17 of threaded connection is driven to move, to drive T-type sliding block 16 synchronous along T-type sliding slot 15
Sliding, movable block 17 drive hinged connecting rod 20, to make that angular deflection occurs between PCB circuit board 5 and support rod 4, pass through
The angle of regulation PCB circuit board 5 calibrates electric current, facilitates operation；Current sensor is increased using U-shaped silicon steel sheet 1
Shock strength, guarantee system are applicable in the extreme circumstances, and when current sensor is by impact force, band moving slide-bar 21 and slide cartridge
Symmetrical sliding occurs between 22, impact force is buffered by second spring 23, has Hall current sensor well
Impact resistance.
It should be noted that the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of Hall current sensor of strong antijamming capability, including U-shaped silicon steel sheet (1) and shell (2), it is characterised in that:
The shell (2) is open-topped hollow structure, is connected with support plate (3) in the shell (2), and support plate (3)
It is connected between shell (2) by buffer gear, the support plate (3) is fixedly connected with support rod close to the upper surface of one end
(4), the other end of the support rod (4) is rotatably connected to PCB circuit board (5) by shaft, and PCB circuit board (5) and support
Plate is connected between (3) by correcting mechanism, and the upper surface of the PCB circuit board (5) is fixedly connected there are two symmetrical peace
It fills block (6), and the upper surface of mounting blocks (6) opens up fluted (7), the both ends respective slot of U-shaped silicon steel sheet (1) bottom
(7) it is fixedly connected at position matched convex block (8), and side and groove (7) of the convex block (8) far from U-shaped silicon steel sheet (1)
Slot bottom offsets, and the indentation, there of the U-shaped silicon steel sheet (1) is equipped with Hall element (9), and Hall element (9) is electrically mounted on PCB line
It on road plate (5), is offered card slot (10) in the phase back side wall of two convex blocks (8), the corresponding card of the inner wall of the groove (7)
It is offered at the position of slot (10) loose slot (11), the slot bottom of the loose slot (11) is fixedly connected with the first spring (12), institute
The other end for stating the first spring (12) is fixedly connected with and card slot (10) matched fixture block (13), and fixture block (13) and loose slot
(11) it is slidably connected, one end in curved surface setting of the fixture block (13) far from the first spring (12), and extend in card slot (10),
The fixture block (13) is fixedly connected with pull rod (14) close to the side of loose slot (11) slot bottom, and the other end of the pull rod (14) is worn
It crosses the first spring (12) and the slot bottom through loose slot (11) extends outwardly, and pull rod (14) and the slot bottom of loose slot (11) slide
Connection.
2. a kind of Hall current sensor of strong antijamming capability according to claim 1, it is characterised in that: the calibration
Mechanism includes the T-type sliding slot (15) for being provided with support plate (3) upper surface, and slidably connects matched T-type in T-type sliding slot (15)
The upper surface of sliding block (16), the T-type sliding block (16) is fixedly connected with movable block (17), and the upper surface of the support plate (3) is leaned on
It is fixedly connected with fixed block (18) at the position of nearly support rod (4), is rotated and connected by bearing on the side wall of the fixed block (18)
Be connected to adjusting screw rod (19), the other end of the adjusting screw rod (19) is arranged through movable block (17), and adjusting screw rod (19) with
Movable block (17) is threadedly coupled, and the upper surface of the movable block (17) is hinged with connecting rod (20), the other end of the connecting rod (20)
It is hinged with the lower surface of PCB circuit board (5).
3. a kind of Hall current sensor of strong antijamming capability according to claim 1, it is characterised in that: the buffering
Mechanism includes multiple slide bars (21) for being fixedly connected on support plate (3) lower surface, and multiple slide bars (21) are uniformly distributed, the shell
Body (2) internal lower surface correspond to be fixedly connected with matched slide cartridge (22) at the positions of slide bar (21), and the slide bar (21) is far
One end from support plate (3) extends in slide cartridge (22) and is fixedly connected with second spring (23), and slide bar (21) and slide cartridge
(22) it is slidably connected, the second spring (23) is fixedly connected on the internal following table of slide cartridge (22) far from the one end of slide bar (21)
Face.
4. a kind of Hall current sensor of strong antijamming capability according to claim 1, it is characterised in that: the pull rod
(14) one end far from fixture block (13) is fixedly connected with pull ring (24).
5. a kind of Hall current sensor of strong antijamming capability according to claim 2, it is characterised in that: the T-type
Sliding block (16) offers ball grooves (25) close to the side of T-type sliding slot (15) slot bottom, and rolls in ball grooves (25) and be connected with rolling
Pearl (26), the ball (26) pass through the notch of ball grooves (25) far from one end of ball grooves (25) slot bottom and extend outwardly, and
Rolling is connected to the slot bottom of T-type sliding slot (15).
6. a kind of Hall current sensor of strong antijamming capability according to claim 2, it is characterised in that: the adjusting
Screw rod (19) is fixedly connected with turning handle (27) far from one end of bearing.
7. a kind of Hall current sensor of strong antijamming capability according to claim 1, it is characterised in that: the support
The both ends of plate (3) are fixedly connected to gag lever post (28), and the other end of the gag lever post (28) is fixedly installed with idler wheel (29), institute
The inner wall for stating shell (2) corresponds to be offered matched roller groove (30) at the positions of idler wheel (29), and idler wheel (29) and roller groove
(30) connection is rolled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910797811.1A CN110470885B (en) | 2019-08-27 | 2019-08-27 | Hall current sensor with strong anti-interference capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910797811.1A CN110470885B (en) | 2019-08-27 | 2019-08-27 | Hall current sensor with strong anti-interference capability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110470885A true CN110470885A (en) | 2019-11-19 |
| CN110470885B CN110470885B (en) | 2021-07-13 |
Family
ID=68512395
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910797811.1A Active CN110470885B (en) | 2019-08-27 | 2019-08-27 | Hall current sensor with strong anti-interference capability |
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| Country | Link |
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| CN (1) | CN110470885B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112208153A (en) * | 2020-10-26 | 2021-01-12 | 南京绿力新材料有限公司 | Shaft-driven ton bag forming equipment |
| CN113049020A (en) * | 2021-03-18 | 2021-06-29 | 倪培锋 | Sensor performance testing device |
| CN114217133A (en) * | 2021-11-16 | 2022-03-22 | 国网辽宁省电力有限公司大连供电公司 | State monitoring system based on power system Internet of things |
| CN116773858A (en) * | 2023-05-22 | 2023-09-19 | 曹海洋 | Simple test system and test method for alternating-current charging pile of electric automobile |
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| CN109491459A (en) * | 2018-09-17 | 2019-03-19 | 北京中渝工程技术研究院 | A kind of technological development main frame that protectiveness is good |
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| CN203251267U (en) * | 2013-04-28 | 2013-10-23 | 京滨电子装置研究开发(上海)有限公司 | Control device and vehicle driving system |
| CN103487632A (en) * | 2013-10-11 | 2014-01-01 | 上海飞轩电子有限公司 | Shielded open loop type magnetic gathering ring-free tunneling magnetoresistive sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112208153A (en) * | 2020-10-26 | 2021-01-12 | 南京绿力新材料有限公司 | Shaft-driven ton bag forming equipment |
| CN113049020A (en) * | 2021-03-18 | 2021-06-29 | 倪培锋 | Sensor performance testing device |
| CN114217133A (en) * | 2021-11-16 | 2022-03-22 | 国网辽宁省电力有限公司大连供电公司 | State monitoring system based on power system Internet of things |
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| CN116773858A (en) * | 2023-05-22 | 2023-09-19 | 曹海洋 | Simple test system and test method for alternating-current charging pile of electric automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110470885B (en) | 2021-07-13 |
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