CN201060230Y - High voltage type hall electric current pick-up shoe - Google Patents
High voltage type hall electric current pick-up shoe Download PDFInfo
- Publication number
- CN201060230Y CN201060230Y CNU2007201267091U CN200720126709U CN201060230Y CN 201060230 Y CN201060230 Y CN 201060230Y CN U2007201267091 U CNU2007201267091 U CN U2007201267091U CN 200720126709 U CN200720126709 U CN 200720126709U CN 201060230 Y CN201060230 Y CN 201060230Y
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- China
- Prior art keywords
- casing
- high voltage
- cabinet
- window
- current sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 239000003822 epoxy resin Substances 0.000 claims description 8
- 229920000647 polyepoxide Polymers 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility model discloses a high-voltage type Hall current sensor, which comprises a cabinet, an iron core, a Hall element and a circuit board. The utility model is characterized in that all parts of the cabinet except the bottom surface are of closed structures; the bottom surface of the cabinet is provided with wiring terminals and a potentiometer being connected with outside circuits; the wiring terminals and the potentiometer are arranged on the circuit board, which is fixed in the cabinet; the upper part of the cabinet is provided with a window with closed internal walls; the cabinet surface between the window and the cabinet bottom is provided with a ripple-shaped insulation umbrella skirt; the bottom of the cabinet is also provided with non-penetrating mounting screw holes for fixing the cabinet; the iron core is fixed on the inner cabinet periphery at the internal wall of the window; the gap of the iron core is provided with the Hall element, which is connected to the circuit via a wire. The utility model has the advantages of low cost, simple manufacture, convenient use, reliable safety, etc., thereby being suitable for wide popularization in the high-voltage detection field.
Description
Technical field
The utility model relates to a kind of current sensor, relates in particular to a kind of high voltage type Hall current sensor that is adapted at using in the high voltage environment.
Background technology
At present, Hall element both domestic and external all designs by the operating on low voltage environmental requirement, its pattern and structure also only are suitable for using under the low-voltage environment, because the existing Hall current sensor of constraint of structure and mentality of designing all is not suitable for directly using in the high voltage occasion, mainly contains the reason of following four aspects:
One, the material of making casing is by the low voltage operating environmental selection, and the dielectric strength deficiency is easily by high electrical breakdown;
Two, the distance at connection terminal and regulator potentiometer and a charged position of high voltage is too near, very easily takes place creepage and discharge;
Three, the distance at a mounting hole and a charged position of high voltage is not enough, does not particularly prevent undulatory insulation full skirt creepage and discharge on housing, very easily takes place creepage and discharge;
Four, there are not reliable special-purpose grounding measures, poor stability.
Along with fast development of national economy, to high voltage installation, particularly the demand to the high-voltage power electronic equipment increases considerably, and the generation of being badly in need of a kind of novel Hall current sensor solves existing problem.
Summary of the invention
The utility model purpose is at the deficiencies in the prior art, develops a kind of high voltage type Hall current sensor esy to use, safe and reliable.The technological means that the utility model adopted is as follows:
A kind of high voltage type Hall current sensor comprises casing, iron core, Hall element and circuit board; It is characterized in that described casing remainder except that the bottom surface all is an enclosed construction, be provided with connection terminal and the potentiometer that is connected with external circuitry in the bottom surface of casing; Described connection terminal and potentiometer are installed on the circuit board, and circuit board then is fixed in the casing; The top of described casing is provided with the window of inwall sealing, and the casing surface between window and bottom of shell is provided with undulatory insulation full skirt, also is provided with the non-installation screw that penetrates in the bottom of casing and is used for fixing casing; Described iron core is fixed on the periphery that is positioned at the window inwall in the casing, is provided with Hall element at the place, slit of iron core and is wired on the circuit board; Described casing is formed by poured with epoxy resin; Described casing is divided into two parts, and it is docking together constitutes a complete casing.The minimum thickness of described casing is not less than 4mm; The circular window that being shaped as of described window passed rectangular window that a rectangle busbar of band high-voltage passes or a round conductor that makes the band high-voltage; Described iron core, Hall element and circuit board are encapsulated in the real core body that forms a sealing in the casing with poured with epoxy resin; The ground connection binding post that safety ground is provided with is installed on the described circuit board, and being positioned at bottom of shell can guide to external ground by lead.
The high voltage type Hall current sensor that the utility model provides is compared with existing Hall current sensor, and its advantage is conspicuous, and it has following feature:
One, the material of making casing adopts epoxy resin, and the minimum thickness of casing is not less than 4mm, to guarantee enough dielectric strengths;
Two, on casing, be provided with the rectangular window that passes of rectangle busbar that can make the band high-voltage, maybe can make the round conductor of band high voltage position or the circular window that cable passes;
Three, on casing, be provided with the increase creepage distance and prevent that insulation full skirt creepage and discharge from can effectively prevent because of creepage or issuable equipment of discharge or personal injury;
Four, only the installation screw is set at bottom of shell;
Five, Hall element and electronic circuit are encapsulated in the casing with poured with epoxy resin;
Six, be provided with the connection terminal that is connected with external circuitry and the potentiometer of regulating circuit parameter at bottom of shell;
Seven, be provided with reliable special-purpose ground connection binding post at bottom of shell;
Eight, whole sensor is except that the bottom surface of body, without any being exposed to outer conductive component.
By technique scheme, the utility model high voltage type Hall current sensor can directly apply to the following high voltage field of 15KV, has characteristics such as cost is low, manufacturing is simple, esy to use, safe and reliable.
Description of drawings
Fig. 1 is a front view of the present utility model;
Fig. 2 is a vertical view of the present utility model;
Fig. 3 is a side view of the present utility model;
Fig. 4 be Fig. 3 B-B to cut-open view;
Fig. 5 is one-piece construction figure of the present utility model;
Fig. 6 is the utility model cut-away view;
Fig. 5 is a specification digest accompanying drawing of the present utility model.
Among the figure: 1, casing, 2, the insulation full skirt, 3, window, 4, circuit board, 5, screw is installed, 6, the ground connection binding post, 7, potentiometer, 8, connection terminal, 9, Hall element, 10, iron core.
Embodiment
Adopt the casing 1 of epoxy resin or other insulating material moulding by casting as Fig. 1～this high voltage type Hall current sensor shown in Figure 6; With epoxy resin unshakable in one's determination 10, Hall element 9 and electronic circuit board 4 cast are encapsulated in the real core body that forms a sealing in the casing 1, on casing 1, are provided with rectangular window 3 that the rectangle busbar that can make the band high-voltage passes according to actual needs and maybe can make round conductor of band noble potential or the circular window 3 that cable passes; Casing surface between window 3 and casing 1 bottom be provided with undulatory prevent creepage and the discharge insulation full skirt 2 prevent because of the creepage or issuable accident of discharge; The connection terminal 8 that is used for being connected with external circuitry, the potentiometer 7 of regulating circuit parameter and the ground connection binding post 6 that aims at the safety ground setting all are placed in casing 1 bottom; Be provided with non-penetrating at bottom of shell in addition and screw 5 such whole sensor be installed except that bottom surface, without any being exposed to outer conductive component at body.
During use this body is fixed on the fixed head, the conductor that will detect is passed window 3, be connected with external circuitry by connection terminal 8 and carry out the data transmission, with overpotential device 7 regulating circuit parameters, in addition for safety with ground connection binding post 6 ground connection, just can carry out the safety detection of electric current then.For example carry out the current detecting of high voltage converter, the output of high voltage converter has following characteristics: the voltage height, reach as high as 12kV, wide frequency range, 0-50Hz, harmonic content big, require time response fast.A, B, C three-phase output bus (or cable) with high voltage converter during detection directly pass 3 high voltage type Hall current sensors that are fixed on the steel framework respectively, signal of sensor is drawn by the plug of its bottom, and being sent to control circuit or Displaying Meter just can safety detection.
This high voltage type Hall current sensor is specially adapted to the current detecting under high-tension occasion, and the character (whether whether whether for example, be sinusoidal waveform, be periodic waveform, be interchange etc.) of sensed current is not had special requirement.Therefore, can be widely used in any field that need detect electric current such as high voltage converter, high-voltage motor soft starter, high-tension switch cabinet, SVC, have the accuracy of detection height, Linearity is good, response is fast, characteristics such as safe and reliable.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to the technical solution of the utility model and inventive concept thereof, all should be encompassed within the protection domain of the present utility model.
Claims (7)
1. a high voltage type Hall current sensor comprises casing (1), (10) unshakable in one's determination, Hall element (9) and circuit board (4); It is characterized in that described casing (1) remainder except that the bottom surface all is an enclosed construction, be provided with the connection terminal (8) and the potentiometer (7) that are connected with external circuitry in the bottom surface of casing (1); Described connection terminal (8) and potentiometer (7) are installed on the circuit board (4), and circuit board (4) then is fixed in the casing (1); The top of described casing (1) is provided with the window (3) of inwall sealing, and the casing surface between window (3) and casing (1) bottom is provided with undulatory insulation full skirt (2), also is provided with the non-installation screw (5) that penetrates in the bottom of casing (1) and is used for fixing casing; Described iron core (10) is fixed on the periphery that is positioned at window (3) inwall in the casing (1), is provided with Hall element (9) at the place, slit of (10) unshakable in one's determination and is wired on the circuit board.
2. high voltage type Hall current sensor according to claim 1 is characterized in that described casing (1) is formed by poured with epoxy resin.
3. high voltage type Hall current sensor according to claim 1 and 2 is characterized in that described casing (1) is divided into two parts, and it is docking together constitutes a complete casing.
4. high voltage type Hall current sensor according to claim 1 is characterized in that the minimum thickness of described casing (1) is not less than 4mm.
5. high voltage type Hall current sensor according to claim 1 is characterized in that the circular window that being shaped as of described window (3) makes the rectangular window that passes of a rectangle busbar of band high-voltage or a round conductor of band high-voltage is passed.
6. high voltage type Hall current sensor according to claim 1 is characterized in that described iron core (10), Hall element (9) and circuit board (4) are encapsulated in the real core body that forms a sealing in the casing (1) with poured with epoxy resin.
7. high voltage type Hall current sensor according to claim 1 is characterized in that the upward ground connection binding post (6) of the promising safety ground setting of installation of described circuit board (4), and being positioned at casing (1) bottom can guide to external ground by lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201267091U CN201060230Y (en) | 2007-07-17 | 2007-07-17 | High voltage type hall electric current pick-up shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201267091U CN201060230Y (en) | 2007-07-17 | 2007-07-17 | High voltage type hall electric current pick-up shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060230Y true CN201060230Y (en) | 2008-05-14 |
Family
ID=39408712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201267091U Expired - Lifetime CN201060230Y (en) | 2007-07-17 | 2007-07-17 | High voltage type hall electric current pick-up shoe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060230Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572438A (en) * | 2016-03-21 | 2016-05-11 | 山东交通学院 | Current sensor processing technology |
| CN109521251A (en) * | 2018-11-19 | 2019-03-26 | 武汉科功科技有限公司 | A kind of Hall current sensor and its Performance Test System |
| CN112858754A (en) * | 2021-01-07 | 2021-05-28 | 四川众航电子科技有限公司 | Voltage type Hall sensor device |
| CN114487556A (en) * | 2022-02-09 | 2022-05-13 | 蚌埠希磁科技有限公司 | Current sensor |
-
2007
- 2007-07-17 CN CNU2007201267091U patent/CN201060230Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572438A (en) * | 2016-03-21 | 2016-05-11 | 山东交通学院 | Current sensor processing technology |
| CN109521251A (en) * | 2018-11-19 | 2019-03-26 | 武汉科功科技有限公司 | A kind of Hall current sensor and its Performance Test System |
| CN112858754A (en) * | 2021-01-07 | 2021-05-28 | 四川众航电子科技有限公司 | Voltage type Hall sensor device |
| CN114487556A (en) * | 2022-02-09 | 2022-05-13 | 蚌埠希磁科技有限公司 | Current sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080514 |