CN209570635U - A kind of improved circuit breaker electric flow measurement module - Google Patents
A kind of improved circuit breaker electric flow measurement module Download PDFInfo
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- CN209570635U CN209570635U CN201822139800.8U CN201822139800U CN209570635U CN 209570635 U CN209570635 U CN 209570635U CN 201822139800 U CN201822139800 U CN 201822139800U CN 209570635 U CN209570635 U CN 209570635U
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- hall element
- temperature
- sample circuit
- current signal
- measurement module
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Abstract
A kind of improved circuit breaker electric flow measurement module, it includes copper bar (1), the copper bar (1) passes through Hall element (2), the Hall element (2) connect with current signal sample circuit (3) and send collected current signal to the breaker controller (4) connecting with the current signal sample circuit (3) after current signal sample circuit (3) amplification filtering, it is characterized by: temperature sensor (5) is arranged close to the position of Hall element (2) and can acquire the environment temperature of Hall element (2) nearby, the temperature sensor (5) send the ambient temperature signal of collected Hall element (2) nearby to temperature signal sample circuit (6) connected to it, the temperature signal sample circuit (6) will be sent after the ambient temperature signal received amplification filtering to open circuit connected to it Device controller (4).Then measurement module carries out temperature value supplement again, improves the current measurement precision of breaker using the temperature of temperature sensor acquisition Hall element attachment.
Description
Technical field
The utility model belongs to breaker technical field, is specifically exactly to be related to a kind of improved circuit breaker electric flow measurement mould
Block can be improved the current measurement precision of breaker.
Background technique
In circuit breaker system, usually by measuring the size of itself copper bar electric current, to judge load whether in failure
State, and necessary disjunction protection is provided.And when measuring copper bar electric current, it generally will use current divider or Hall element conduct
Sensor.Wherein, for Hall element due to easy to install, advantages, the uses such as fever is small are comparatively extensive.But Hall element meeting
Because the variation of environment temperature causes measurement accuracy to reduce, so that accurate current value can not be obtained.Specific manifestation is exactly logical
Often when measuring copper bar electric current, Hall element is mounted on copper bar, can generate larger heat when copper bar flows through high current, but due to
The narrow space of copper installation is closed to be difficult to radiate, and circuit breaker internal temperature is caused to increase, and circuit breaker internal temperature increases, can shadow
It rings and arrives Hall element, actual current value can not be measured truly and effectively by so that it is generated temperature drift, and in general, environment temperature becomes
Change is bigger, and measurement error is bigger.
Utility model content
When the purpose of this utility model is aiming at above-mentioned existing breaker copper bar current measurement, variation of ambient temperature
The technological deficiency that measurement accuracy can be reduced is provided a kind of improved circuit breaker electric flow measurement module, is acquired using temperature sensor
Then the temperature of Hall element attachment carries out temperature value supplement again, improve the current measurement precision of breaker.
Technical solution
In order to achieve the above technical purposes, a kind of improved circuit breaker electric flow measurement module provided by the utility model, it
Including copper bar, the copper bar passes through Hall element, and the Hall element connect with current signal sample circuit and will be collected
Current signal is sent after the amplification filtering of current signal sample circuit to the breaker control connecting with the current signal sample circuit
Device processed, it is characterised in that: temperature sensor is arranged close to the position of Hall element and can acquire the environment near Hall element
Temperature, the temperature sensor send the ambient temperature signal near collected Hall element to temperature signal connected to it
Sample circuit, the temperature signal sample circuit will be sent after the ambient temperature signal received amplification filtering to connected to it disconnected
Road device controller.
Further, the current signal sample circuit is current signal amplification and filter circuit based on operational amplifier.
Further, the temperature signal sample circuit is temperature signal amplification and filter circuit based on operational amplifier.
Beneficial effect
A kind of improved circuit breaker electric flow measurement module provided by the utility model, Hall element measure circuit breaker current
On the basis of, introduce temperature sensor.Temperature sensor is mounted near Hall element, to measure the environment near Hall element
Temperature.The acquisition signal of temperature sensor and Hall element eventually enters into breaker controller, by the temperature-compensating journey set
The current signal of ordered pair real-time sampling compensates calibration, finally obtains an accurate current value, and whole device improves
The current measurement precision of breaker.
Detailed description of the invention
Attached drawing 1 is the connection relationship diagram of the utility model embodiment.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described further.
Embodiment
As shown in Fig. 1, a kind of improved circuit breaker electric flow measurement module, it includes copper bar 1, and the copper bar 1 passes through suddenly
That element 2, the Hall element 2 connect with current signal sample circuit 3 and adopt collected current signal through current signal
Sample circuit 3 is sent after amplifying to the breaker controller 4 connecting with the current signal sample circuit 3, it is characterised in that: temperature passes
Sensor 5 is arranged close to the position of Hall element 2 and can acquire the environment temperature near Hall element 2, the temperature sensor 5
Ambient temperature signal near collected Hall element 2 is sent to temperature signal sample circuit 6 connected to it, the temperature
Signal sample circuit 6 is sent after amplifying the ambient temperature signal received to breaker controller 4 connected to it, breaker control
Then device 4 processed executes order to execution unit transmission according to obtained signal.
The current signal sample circuit 3 is current signal amplification and filter circuit based on operational amplifier.
The temperature signal sample circuit 6 is temperature signal amplification and filter circuit based on operational amplifier.
A kind of improved circuit breaker electric flow measurement module provided in this embodiment, Hall element measure the base of circuit breaker current
On plinth, temperature sensor is introduced.Temperature sensor is mounted near Hall element, to measure the environment temperature near Hall element
Degree.The acquisition signal of temperature sensor and Hall element eventually enters into breaker controller, by the temperature-compensating program set
Calibration is compensated to the current signal of real-time sampling, finally obtains an accurate current value, whole device improves disconnected
The current measurement precision of road device.
According to the disclosure and teachings of the above specification, this patent those skilled in the art can also be to above-mentioned embodiment party
Formula is changed and is modified.Therefore, the utility model is not limited to above-mentioned specific embodiment, all those skilled in the art
Member's any conspicuous improvement made on the basis of the utility model, replacement or modification belong to the utility model
Protection scope.
In addition, these terms are merely for convenience of description although using some specific terms in this specification, and
Any restrictions are not constituted to this patent.
Claims (3)
1. a kind of improved circuit breaker electric flow measurement module, it includes copper bar (1), and the copper bar (1) passes through Hall element (2),
The Hall element (2) connect with current signal sample circuit (3) and collected current signal is sampled electricity through current signal
It send after the amplification filtering of road (3) to the breaker controller (4) being connect with the current signal sample circuit (3), it is characterised in that:
Temperature sensor (5) is arranged close to the position of Hall element (2) and can acquire the environment temperature of Hall element (2) nearby, institute
Temperature sensor (5) is stated to send the ambient temperature signal of collected Hall element (2) nearby to temperature signal connected to it
Sample circuit (6), the temperature signal sample circuit (6), which will be sent after the ambient temperature signal received amplification filtering to it, to be connected
The breaker controller (4) connect.
2. a kind of improved circuit breaker electric flow measurement module as described in claim 1, it is characterised in that: the current signal is adopted
Sample circuit (3) is current signal amplification and filter circuit based on operational amplifier.
3. a kind of improved circuit breaker electric flow measurement module as described in claim 1, it is characterised in that: the temperature signal is adopted
Sample circuit (6) is temperature signal amplification and filter circuit based on operational amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822139800.8U CN209570635U (en) | 2018-12-19 | 2018-12-19 | A kind of improved circuit breaker electric flow measurement module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822139800.8U CN209570635U (en) | 2018-12-19 | 2018-12-19 | A kind of improved circuit breaker electric flow measurement module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209570635U true CN209570635U (en) | 2019-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822139800.8U Active CN209570635U (en) | 2018-12-19 | 2018-12-19 | A kind of improved circuit breaker electric flow measurement module |
Country Status (1)
| Country | Link |
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| CN (1) | CN209570635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730963A (en) * | 2020-12-22 | 2021-04-30 | 唐新颖 | Automobile-level Hall current sensor with temperature compensation and compensation method thereof |
-
2018
- 2018-12-19 CN CN201822139800.8U patent/CN209570635U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730963A (en) * | 2020-12-22 | 2021-04-30 | 唐新颖 | Automobile-level Hall current sensor with temperature compensation and compensation method thereof |
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