CN205539131U - Temperature compensation current detection device based on hall effect - Google Patents
Temperature compensation current detection device based on hall effect Download PDFInfo
- Publication number
- CN205539131U CN205539131U CN201521124897.5U CN201521124897U CN205539131U CN 205539131 U CN205539131 U CN 205539131U CN 201521124897 U CN201521124897 U CN 201521124897U CN 205539131 U CN205539131 U CN 205539131U
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- CN
- China
- Prior art keywords
- magnetic core
- fastener
- hall effect
- compensation current
- temperature compensation
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- 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 - Fee Related
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Abstract
The utility model provides a temperature compensation current detection device based on hall effect, it includes the casing, centre gripping part, magnetic core coil and detection circuitry await measuring, the casing top and the centre gripping part that awaits measuring are moulded plastics as an organic wholely, and the inside detection circuitry that is provided with, detection circuitry and magnetic core coil are connected, the centre gripping part that awaits measuring includes fastener and lower fastener again, it is matched with arc structure with lower fastener to go up the fastener, go up the fastener and pass through the connecting piece hub connection with the one end of lower fastener, upward all be equipped with magnetic core coil on fastener and the lower fastener. The utility model discloses simple structure, the simple operation is compared with detection device in the past, not only, has improved detection efficiency effectively, has still strengthened detection device's accuracy nature effectively.
Description
Technical field
This utility model relates to the temperature compensation current sensing means based on Hall effect of a kind of improvement, belongs to technical field of electric power.
Background technology
For guaranteeing the normal work of power circuit, insider needs often to detect circuit, to avoid causing the generation of major accident because of line fault.During wireline inspection, current detecting data can reflect the duty of circuit to a certain extent, thus the protection decision-making to device and power supply provides foundation.At present, detection device commonly used in the trade is a lot, such as diverter, transformer, fluxgate and other kinds detection device.Wherein, detection device based on Hall effect is put and is widely used because of advantages such as its detection range are wide, dynamic property is good, overload capacity is strong.Although, hall detector part has preferable Detection results relative to other detection device, but, owing to its certainty of measurement temperature influence is the most serious, so when variations in temperature is bigger, the error of testing result also can increase therewith, thus have impact on the accuracy of detection.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of temperature compensation current sensing means based on Hall effect is provided, it has, and certainty of measurement is high, dynamic property is good, overload capacity is strong, it is possible to be prevented effectively from the detection error caused because variations in temperature is excessive.
Problem described in the utility model solves by the following technical programs:
A kind of temperature compensation current sensing means based on Hall effect, including housing, retained part to be measured, magnetic core coil and testing circuit；Described case top and retained part to be measured are molded into one, and are internally provided with testing circuit；Described testing circuit is connected with magnetic core coil；Described retained part to be measured includes again wire clamp and drop wire clip；Described upper wire clamp is the arcuate structure matched with drop wire clip；Described upper wire clamp is connected by connector shaft with one end of drop wire clip；It is equipped with magnetic core coil on described upper wire clamp and drop wire clip.
Above-mentioned temperature compensation current sensing means based on Hall effect, described testing circuit includes CPU, temperature sensor and Hall element；Described temperature sensor is connected with the P1.0 end of CPU；Described Hall element is connected with the P1.1 end of CPU.
Above-mentioned temperature compensation current sensing means based on Hall effect, sets up LED display, and described LED display is connected with P2.0～the P2.7 end of CPU.
Above-mentioned temperature compensation current sensing means based on Hall effect, sets up range knob and zeroing knob；Described range knob and zeroing knob are arranged on housing.
This utility model changes retained part to be measured into rotary structure, makes the rotation that wire clamp can carry out 180 ° around connector so that it is can reach to detect device without power-off, so that it may be directly replaced detecting the purpose of circuit；Efficiently solve in traditional working mode, when changing detection circuit, need first detection device to be carried out power down process, be replaced the tedious steps of circuit to be measured the most again, effectively simplify workflow, improve work efficiency.It addition, this utility model is in order to strengthen the accuracy of detection, spy sets up temperature sensor, make it coordinate Hall element to be used in conjunction with, for solving because variations in temperature is excessive, and cause the inaccurate problem of testing result, both improve the degree of accuracy of detection, enhance again practicality of the present utility model.
This utility model simple in construction, simple operation, compared with detection device in the past, not only, it is effectively improved detection efficiency, also effectively enhances the accuracy of detection device.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 is this utility model electrical schematic diagram.
In figure, each list of reference numerals is: 1. power positive cathode interface, 2. detection circuit, 3. zeroing knob, 4. range knob, 5. connector, 6. magnetic core coil, 7. display screen, 8. housing, 10. go up wire clamp, 9. drop wire clip, 11.CPU, T. temperature sensor, H. Hall element.
Detailed description of the invention
Referring to Fig. 1 and Fig. 2, this utility model includes housing 8, retained part to be measured, magnetic core coil 6 and testing circuit；Described housing 8 top is molded into one with the drop wire clip of retained part to be measured, and is internally provided with testing circuit；Described testing circuit is connected with magnetic core coil 6；Described retained part to be measured includes again wire clamp 10 and drop wire clip 9；Described upper wire clamp 10 is the arcuate structure matched with drop wire clip 9, and two wire clamp combines and can form toroidal.Described upper wire clamp 10 is connected by connector 5 axle with one end of drop wire clip 9, and upper wire clamp can rotate 180 ° around connector 5, in order to tested wire also can be put in magnetic core coil 6 without power-off；It is equipped with magnetic core coil 6, for circuit being carried out conduction detection on described upper wire clamp 10 and drop wire clip 9.
It addition, described testing circuit includes CPU, temperature sensor T and Hall element H；The P1.0 end of described temperature sensor T with CPU is connected；The P1.1 end of described Hall element H with CPU is connected;The magnetic field that described Hall element is made up of magnetic core coil for detection, and the signal detected, transmit to CPU.More get information about detection data for the ease of testing staff, spy sets up display screen 7, and described display screen 7 is arranged on housing 8, and it is connected with P2.0～the P2.7 end of CPU.
This utility model is additionally provided with range knob 4 and zeroing knob 3；Described range knob 4 and zeroing knob 3 are arranged on housing 8, and described range knob 4 and zeroing knob 3 are regulation button commonly used in the art, therefore no longer write.It addition, the CPU model employed in this utility model is STM32F93, LED display model is ILI10488.
Upper wire clamp 10 in use, is first rotated to certain angle, in order to be placed in drop wire clip 9 by tested wire by this utility model, and upper wire clamp 10 and drop wire clip 9 is closed.Then power to device so that it is be connected with the power positive cathode interface on housing 8；After to be powered, device starts.Hall element obtains original Hall voltage, and is sent in CPU by Hall voltage.Temperature sensor then real-time monitoring of environmental temperature, produces signal and sends in CPU equally, and merge it, thus obtain more accurately detecting result.Finally, data are delivered on LED display by CPU so that it is demonstrate real-time current testing result and ambient temperature.
When accessing without tested wire, by rotating zeroing knob, device can be carried out zeroing process, by rotating range knob, device be carried out range adjustment, the systematic error produced so that avoiding device is aging.
Claims (4)
1. a temperature compensation current sensing means based on Hall effect, it is characterised in that: include housing (8), retained part to be measured, magnetic core coil (6) and testing circuit；Described housing (8) top and retained part to be measured are molded into one, and are internally provided with testing circuit；Described testing circuit is connected with magnetic core coil (6)；Described retained part to be measured includes again wire clamp (9) and drop wire clip (10)；Described upper wire clamp (9) is the arcuate structure matched with drop wire clip (10), and its one end is connected by connector (5) axle；It is equipped with magnetic core coil (6) on described upper wire clamp (9) and drop wire clip (10).
Temperature compensation current sensing means based on Hall effect the most according to claim 1, it is characterised in that: described testing circuit includes CPU(11), temperature sensor (T) and Hall element (H)；Described temperature sensor (T) and CPU(11) P1.0 end be connected；Described Hall element (H) and CPU(11) P1.1 end be connected；Described CPU model is STM32F93.
Temperature compensation current sensing means based on Hall effect the most according to claim 2, it is characterised in that: setting up display screen (7), described display screen (7) is arranged on housing (8), it and CPU(11) P2.0～P2.7 end be connected.
4. according to the temperature compensation current sensing means based on Hall effect described in claim 1 or 3, it is characterised in that: set up range knob (4) and zeroing knob (3)；Described range knob (4) and zeroing knob (3) are arranged on housing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521124897.5U CN205539131U (en) | 2015-12-31 | 2015-12-31 | Temperature compensation current detection device based on hall effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521124897.5U CN205539131U (en) | 2015-12-31 | 2015-12-31 | Temperature compensation current detection device based on hall effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205539131U true CN205539131U (en) | 2016-08-31 |
Family
ID=56763079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521124897.5U Expired - Fee Related CN205539131U (en) | 2015-12-31 | 2015-12-31 | Temperature compensation current detection device based on hall effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205539131U (en) |
-
2015
- 2015-12-31 CN CN201521124897.5U patent/CN205539131U/en not_active Expired - Fee Related
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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: 20160831 Termination date: 20161231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |