CN204330860U - A kind of single supply ASIC current sensor being applied to electric welding machine - Google Patents
A kind of single supply ASIC current sensor being applied to electric welding machine Download PDFInfo
- Publication number
- CN204330860U CN204330860U CN201420763048.3U CN201420763048U CN204330860U CN 204330860 U CN204330860 U CN 204330860U CN 201420763048 U CN201420763048 U CN 201420763048U CN 204330860 U CN204330860 U CN 204330860U
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- China
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- current sensor
- welding machine
- circuit board
- electric welding
- single supply
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Abstract
A kind of single supply ASIC current sensor being applied to electric welding machine, comprise shell, magnetic-core circuit plate three parts, described circuit board is connected by screw fastening with the upper cover of shell, and described circuit board wiring is simple, only includes asic chip and few peripheral component.The upper cover of described shell is provided with the catch increasing creepage distance, for increasing the distance between former limit conductor and lead-out terminal, improves security.Magnetic core and shell lower cover are bonded together by glue.Link in outer casing upper cover and lower cover pass through and be connected together.Described magnetic core adopts Ferrite Material for reducing eddy current loss.Described circuit board is provided with lead-out terminal, and the calibration of current sensor connects external programmer by terminal pins and carries out programming calibration, saves the manual shift process of potentiometer.Survey electric current and finally convert the electric signal proportional with primary current to, exported by connection terminal.
Description
Technical field
The utility model relates to a kind of current sensor, especially a kind of single supply ASIC current sensor being applied to electric welding machine.
Background technology
Along with the awareness of saving energy of society is more and more stronger, in commercial Application and consumer electronics sector application, the application that single 5V powers is more and more extensive, and can reduce gradually with the power supply mode that positive and negative 15V is representative, withdraws from the market the most at last.
Based on the current sensor of hall principle all the time based on dual power supply, this type of application is because will use dual power supply, so application relative complex, power consumption is also higher, is difficult to apply in portable equipment.Welding machine profession is a traditional industry, is also based on dual power supply to selecting of Hall current sensor all the time.In recent years along with the continuous progress of technology, increasing industry adopts the power supply of low-power consumption single supply, and this is trend of the times, and welding machine profession is no exception, more and more stronger to the demand of the Hall element of single supply low-power consumption.
Summary of the invention
The purpose of this utility model is to provide and is a kind ofly applied to the low-power consumption of welding machine profession, the ASIC Hall current sensor of single power supply.
To achieve these goals, the utility model adopts following technical scheme:
A kind of single supply ASIC current sensor being applied to electric welding machine, comprise shell, magnetic-core circuit plate three parts, described circuit board is connected by screw fastening with the upper cover of shell, and described circuit board wiring is simple, only includes asic chip and few peripheral component.The upper cover of described shell is provided with the catch increasing creepage distance, for increasing the distance between former limit conductor and lead-out terminal, improves security.Magnetic core and shell lower cover are bonded together by glue.Link in outer casing upper cover and lower cover pass through and be connected together.Described magnetic core adopts Ferrite Material for reducing eddy current loss.Described circuit board is provided with lead-out terminal, and the calibration of current sensor connects external programmer by terminal pins and carries out programming calibration, saves the manual shift process of potentiometer.Survey electric current and finally convert the electric signal proportional with primary current to, exported by connection terminal.
Preferably, described shell has the square hole that aperture is 20mm*10mm.
Preferably, described circuit board is single 5V Power supply.
Preferably, described circuit board have employed asic chip and possesses programmable functions.
Preferably, described magnetic core have employed ferrite high permeability material.
Preferably, described circuit board is fixed on outer casing upper cover by screw.
Preferably, the upper cover of described shell is provided with the catch increasing creepage distance.
Owing to have employed technique scheme, the utility model has following beneficial effect:
The utility model have employed the power supply mode of single 5V, and power consumption is lower, overcomes the shortcoming that dual power supply power consumption is higher in the past, adopts FERRITE CORE, solves under high-frequency current state, the problem that eddy current loss is higher.Adopt programmable asic chip, improve production efficiency, reduce artificial degree of dependence.
Accompanying drawing explanation
With reference to the following description of accompanying drawing and this preferred implementation, the utility model and object thereof and advantage will be understood best, wherein:
Fig. 1 is the utility model schematic diagram;
Fig. 2 is the utility model installation diagram;
Fig. 3 is stereographic map of the present utility model.
Embodiment
The single supply ASIC current sensor of electric welding machine is applied to reference to accompanying drawing 1 to 3, one kind of kind.Hall principle is a kind of widely used technology, principle schematic of the present utility model, and primary current flows through conductor 1003, produces the magnetic line of force 1004, and the magnetic line of force forms magnetic flux and gathered magnetic by magnetism gathering rings 1001, the size of this magnetic flux and the proportional relation of primary current.Asic chip is placed in the air gap of magnet ring, induction magnetic flux size, and when there being magnetic flux, voltage table 1005 can demonstrate the voltage signal of the relation that to be in proportion with primary current.
With reference to Fig. 2, the magnetic core 2002 with air gap is placed in the shell lower cover 2001 that hole size is 20mm*10mm, firmly bonding.Asic chip 2005 is welded on circuit board 2003, and circuit board 2003 is linked together by screw 2009 and outer casing upper cover 2007.Lead-out terminal 2004 is positioned on circuit board 2003, and for providing power supply and output signal, baffle plate 2008 plays increases the object that creepage distance increases security.
The utility model has the advantages that: (1) technique is simple, adopt ASIC programmable chip, decrease manual intervention, add reliability; (2) have employed single 5V to power, low in energy consumption; (3) have employed ferrite permeability magnetic material, reduce eddy current loss; (4) baffle plate arranges and adds creepage distance, improves security;
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, other multi-form change and variations can also be made on the basis of the above description.Here cannot give exhaustive to all embodiments.Every belong to the technical solution of the utility model the apparent change of amplifying out or variation be still in the row of protection domain of the present utility model.
Claims (7)
1. one kind is applied to the single supply ASIC current sensor of electric welding machine, it is characterized in that, comprise shell, magnetic core, circuit board three parts, after described circuit board and outer casing upper cover are fastenedly connected, be integrated with the shell lower cover being provided with magnetic core, output signal and export eventually through terminal.
2. a kind of single supply ASIC current sensor being applied to electric welding machine according to claim 1, it is characterized in that, described shell has the square hole that aperture is 20mm*10.
3. a kind of single supply ASIC current sensor being applied to electric welding machine according to claim 1, it is characterized in that, described circuit board have employed single 5V power-supply service.
4. a kind of single supply ASIC current sensor being applied to electric welding machine according to claim 1, it is characterized in that, described circuit board have employed programmable asic chip circuit design.
5. a kind of single supply ASIC current sensor being applied to electric welding machine according to claim 1, is characterized in that, described magnetic core adopts ferrite high permeability material.
6. a kind of single supply ASIC current sensor being applied to electric welding machine according to claim 1, is characterized in that, described outer casing upper cover is provided with the catch increasing creepage distance.
7. a kind of single supply ASIC current sensor being applied to electric welding machine according to claim 1, it is characterized in that, described circuit board is fixed on outer casing upper cover by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420763048.3U CN204330860U (en) | 2014-12-08 | 2014-12-08 | A kind of single supply ASIC current sensor being applied to electric welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420763048.3U CN204330860U (en) | 2014-12-08 | 2014-12-08 | A kind of single supply ASIC current sensor being applied to electric welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204330860U true CN204330860U (en) | 2015-05-13 |
Family
ID=53167207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420763048.3U Expired - Fee Related CN204330860U (en) | 2014-12-08 | 2014-12-08 | A kind of single supply ASIC current sensor being applied to electric welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204330860U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541278A (en) * | 2018-12-29 | 2019-03-29 | 宁波锦澄电子科技股份有限公司 | A kind of current sensor and its assembly method |
| CN110632366A (en) * | 2019-09-29 | 2019-12-31 | 浙江巨磁智能技术有限公司 | Leakage current sensor for low-power three-phase inverter |
| CN110799845A (en) * | 2017-07-03 | 2020-02-14 | Koa株式会社 | Current measuring device |
-
2014
- 2014-12-08 CN CN201420763048.3U patent/CN204330860U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110799845A (en) * | 2017-07-03 | 2020-02-14 | Koa株式会社 | Current measuring device |
| CN110799845B (en) * | 2017-07-03 | 2022-02-22 | Koa株式会社 | Current measuring device |
| CN109541278A (en) * | 2018-12-29 | 2019-03-29 | 宁波锦澄电子科技股份有限公司 | A kind of current sensor and its assembly method |
| CN110632366A (en) * | 2019-09-29 | 2019-12-31 | 浙江巨磁智能技术有限公司 | Leakage current sensor for low-power three-phase inverter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20211208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |