CN204989286U - Ring -opening hall current sensor - Google Patents
Ring -opening hall current sensor Download PDFInfo
- Publication number
- CN204989286U CN204989286U CN201520540162.4U CN201520540162U CN204989286U CN 204989286 U CN204989286 U CN 204989286U CN 201520540162 U CN201520540162 U CN 201520540162U CN 204989286 U CN204989286 U CN 204989286U
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- installation portion
- current sensor
- insulation shell
- insulating housing
- hall current
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Abstract
The utility model provides a ring -opening hall current sensor belongs to the sensor technology field. It has solved the current weak problem of sensor interference killing feature. This ring -opening hall current sensor includes and sets up the installation department by insulating housing on insulating housing's terminal surface, is provided with location portion on insulating housing's lateral wall, hollows out to be formed with at insulating housing's middle part and holds the chamber, is provided with the looping -in portion that is used for installing the wire holding the intracavity, is provided with annular magnetic core between looping -in portion and insulating housing, sets up the breach that runs through annular magnetic core on annular magnetic core, just toroidal (memory) core and the coaxial setting of looping -in portion, the connecting hole has also been seted up to the circuit board of installing hall element and link to each other with hall element in the breach on insulating housing, be provided with the connecting wire that the and gate board links to each other in the connecting hole, and is equipped with the adapter sleeve between connecting wire and connecting hole. This ring -opening hall current sensor has that the interference killing feature is strong, simple to operate's advantage.
Description
Technical field
The utility model belongs to sensor technical field, relates to a kind of open loop Hall current sensor.
Background technology
Open loop Hall current sensor refers to based on Hall direct amplifier system principle of work, namely when primary current IP flows through a long lead, by generation one magnetic field around wire, the size in this magnetic field is directly proportional to the electric current flowing through wire, the magnetic field produced is gathered in magnet ring, undertaken measuring by hall device in magnet ring air gap and amplify output, its output voltage Vs reflects primary current Ip and accurately through the process of special circuit, for the detecting element of primary current change, Hall current sensor is widely used in RHVC, inverter, ups power, inverter type welder, metallide, numerically-controlled machine, microcomputer detecting system, grid monitoring system and needing in the every field of isolation detection current/voltage.But in prior art there is poor anti jamming capability, install inconvenient problem in Hall current sensor.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes the open loop Hall current sensor that a kind of antijamming capability is strong, easy for installation.
The purpose of this utility model realizes by following technical proposal: a kind of open loop Hall current sensor, comprise insulation shell, the end face of insulation shell arranges installation portion, installation portion offers mounting groove, offer in mounting groove and run through installation portion and for the mounting hole of mounting screw, the sidewall of insulation shell is provided with location division, hollow out at the middle part of insulation shell and be formed with container cavity, the annular installation portion for conducting wire is provided with in container cavity, toroidal core is provided with between annular installation portion and insulation shell, toroidal core offers the breach running through toroidal core, and described toroidal core and annular installation portion are coaxially arranged, the wiring board being provided with Hall element and being connected with Hall element in breach, insulation shell also offers connecting hole, the connecting line be connected with wiring board is provided with in connecting hole, and adapter sleeve is provided with between connecting line and connecting hole.
In above-mentioned a kind of open loop Hall current sensor, in container cavity, be also provided with the division board be connected with wiring board.
In above-mentioned a kind of open loop Hall current sensor, in container cavity, be filled with casting glue.
Compared with prior art, the utility model has following beneficial effect:
1, the utility model comprises insulation shell, is formed with installation portion and location division in the convex outer surfaces of insulation shell, facilitates the installation of staff, improves precision and the installation effectiveness of installation.
2, hollow out at the middle part of insulation shell and be formed with container cavity, the annular installation portion for conducting wire is provided with in container cavity, tool toroidal core jaggy is provided with between annular installation portion and insulation shell, in breach, Hall element is installed, and there is uniform spacing between annular installation portion and toroidal core, thus ensure that the electric jamming of electrostatic and the noise that can reduce because tested wire produces, improve antijamming capability.
Accompanying drawing explanation
Fig. 1 is cut-open view of the present utility model.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the structural representation at another visual angle of the utility model.
In figure, 100, insulation shell; 110, installation portion; 111, mounting groove; 112, mounting hole; 120, location division; 200, annular installation portion; 300, toroidal core; 400, wiring board; 500, division board; 600, connecting line; 610, adapter sleeve; 700, casting glue.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1 to Figure 3, this open loop Hall current sensor comprises insulation shell 100, the end face of insulation shell 100 arranges installation portion 110, installation portion 110 offers mounting groove 111, offer in mounting groove 111 and run through installation portion 110 and for the mounting hole 112 of mounting screw, the sidewall of insulation shell 100 is provided with location division 120, hollow out at the middle part of insulation shell 100 and be formed with container cavity, the annular installation portion 200 for conducting wire is provided with in container cavity, toroidal core 300 is provided with between annular installation portion 200 and insulation shell 100, and described toroidal core 300 and annular installation portion 200 are coaxially arranged, toroidal core 300 offers the breach running through annular magnet 300, the wiring board 400 being provided with Hall element and being connected with Hall element in breach, insulation shell 100 also offers connecting hole, the connecting line 600 be connected with wiring board 400 is provided with in connecting hole, and adapter sleeve 610 is provided with between connecting line 600 and connecting hole, the setting of adapter sleeve 610 improves the stability be connected between connecting line 600 with wiring board 400, avoid and occur to rupture between connecting line 600 and wiring board 400 and affect the generation of the normal work phenomenon of sensor.
Above-mentioned annular installation portion 200 and toroidal core 300 are coaxially arranged, thus spacing between annular installation portion 200 and toroidal core 300 is equal everywhere, reduce the electric jamming of electrostatic because tested wire produces and noise, improve antijamming capability.
Preferably, insulation shell 100 is provided with location division 120, Hall element realizes locating accurately by location division 120 in the process of installing, and improves positioning precision and the installation effectiveness of Hall element.
Further, above-mentioned installation portion 110 offers mounting groove 111, offer in mounting groove 111 and run through installation portion 110 and mounting hole 112 for installing dog screw, thus Hall element is installed in relevant devices by dog screw, ensure that the steadiness that Hall element is installed.
Hollow out in the middle part of above-mentioned insulation shell 100 and be formed with container cavity, and the annular installation portion 200 be provided with in container cavity for installing tested wire, thus annular container cavity is formed between annular installation portion 200 and insulation shell 100, tool toroidal core 300 jaggy is provided with in annular container cavity, and Hall element is provided with in the breach of toroidal core 300, thus when tested guiding is installed in annular installation portion 200, the magnetic field that Hall element can produce according to tested wire and produce corresponding output signal, staff can measure according to the output signal of correspondence.
Preferably, the wiring board 400 be connected with connector with Hall element respectively is also provided with in annular container cavity, in the process of work, the output signal that Hall element produces can be passed on wiring board 400, electric potential difference can scale up and finally be passed on connector by wiring board 400, wiring board 400 the output signal can amplified Hall element and produce is set, thus improve the accuracy that output signal that Hall element produces measures.
Further, the division board 500 be connected with toroidal core 300 is also provided with in container cavity, above-mentioned wiring board 400 is arranged between division board 500 and magnetic core, division board 500 can make to there is uniform spacing between toroidal core 300 and annular installation portion 200, thus ensure that the electric jamming of electrostatic and the noise that can reduce because tested wire produces, improve antijamming capability, improve the accuracy that Hall element is measured.
Casting glue 700 is filled with in annular container cavity, thus ensure that the steadiness that toroidal core 300, wiring board 400 and division board 500 are installed and impact resistance, casting glue 700 has insulativity simultaneously, thus extraneous factor can be avoided the impact of Hall element measurement accuracy, improve the antijamming capability of Hall element.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (3)
1. an open loop Hall current sensor, comprise insulation shell, it is characterized in that, the end face of insulation shell arranges installation portion, installation portion offers mounting groove, offer in mounting groove and run through installation portion and for the mounting hole of mounting screw, the sidewall of insulation shell is provided with location division, hollow out at the middle part of insulation shell and be formed with container cavity, the annular installation portion for conducting wire is provided with in container cavity, toroidal core is provided with between annular installation portion and insulation shell, toroidal core offers the breach running through toroidal core, and described toroidal core and annular installation portion are coaxially arranged, the wiring board being provided with Hall element and being connected with Hall element in breach, insulation shell also offers connecting hole, the connecting line be connected with wiring board is provided with in connecting hole, and adapter sleeve is provided with between connecting line and connecting hole.
2. a kind of open loop Hall current sensor according to claim 1, is characterized in that, be also provided with the division board be connected with wiring board in container cavity.
3. a kind of open loop Hall current sensor according to claim 2, is characterized in that, in container cavity, be filled with casting glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520540162.4U CN204989286U (en) | 2015-07-23 | 2015-07-23 | Ring -opening hall current sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520540162.4U CN204989286U (en) | 2015-07-23 | 2015-07-23 | Ring -opening hall current sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204989286U true CN204989286U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520540162.4U Active CN204989286U (en) | 2015-07-23 | 2015-07-23 | Ring -opening hall current sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204989286U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182037A (en) * | 2015-08-07 | 2015-12-23 | 宁波华宇电子有限公司 | Open-loop hall current sensor |
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2015
- 2015-07-23 CN CN201520540162.4U patent/CN204989286U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182037A (en) * | 2015-08-07 | 2015-12-23 | 宁波华宇电子有限公司 | Open-loop hall current sensor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |