CN208026791U - A kind of current sensing means - Google Patents
A kind of current sensing means Download PDFInfo
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- CN208026791U CN208026791U CN201820456507.1U CN201820456507U CN208026791U CN 208026791 U CN208026791 U CN 208026791U CN 201820456507 U CN201820456507 U CN 201820456507U CN 208026791 U CN208026791 U CN 208026791U
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- current
- sensing means
- converter
- ammeter
- current sensing
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Abstract
The utility model is related to a kind of current sensing means, including current output circuit, load circuit, ammeter；The current sensing means further includes current converter；The output end of the current output circuit and the input terminal of current converter connect；The output end of the current converter and the input terminal of load circuit connect；The output end of the load circuit and one end of ammeter connect；The other end of the ammeter is grounded.
Description
Technical field
The utility model is related to the technical field of current detecting, more particularly to a kind of current sensing means.
Background technology
Currently, on the current output line road of high-voltage motor, since line loss is big, continuous data information will appear metering
Deviation causes error to cost accounting electric current statistics, influences the accuracy of equipment operation monitoring and metering.
Invention content
The utility model provides a kind of current sensing means easy to detect, improving accuracy.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of current sensing means, including current output circuit, load circuit, ammeter；The current sensing means
It further include current converter；The output end of the current output circuit and the input terminal of current converter connect；The electricity
The output end of stream transformer and the input terminal of load circuit connect；The output end of the load circuit and one end of ammeter connect
It connects；The other end of the ammeter is grounded.
Wherein, the operation principle of this programme is as follows：Current output circuit output current enters in current converter, and electric current turns
The electric current of input is converted into voltage output by parallel operation, by output voltage by load circuit after, using ammeter to electric current carry out
Detection；Corresponding current information can be read by ammeter；In the technical scheme, input current is converted by current converter
Corresponding current information is read at voltage output, and by ammeter, is converted using current converter, reduces impedance to line
The loss on road, effectively improves measuring accuracy.
Preferably, the current output circuit is high-voltage motor current output circuit, is exported using high-voltage motor electric current
Circuit is as output.
Preferably, the ammeter is single-phase digital display ammeter, is carried out to current information using single-phase digital display ammeter
Display is more convenient, is more intuitively shown by number and check current information.
Preferably, the current converter is to be galvanically isolated acquisition converter, is adopted using acquisition converter is galvanically isolated
Set pair electric current is converted, and working efficiency is improved, and reduces loss of the impedance to circuit.
Preferably, the acquisition converter that is galvanically isolated is analog quantity converter, and input terminal inputs analog current signal,
Output end exports analog voltage signal.
Preferably, the current sensing means is mounted in high-voltage motor control box equipment.
Compared with prior art, the utility model has the beneficial effects that：In the present solution, will be inputted by current converter
Electric current is converted into voltage output, and reads corresponding current information by ammeter, is converted using current converter, reduces
Loss of the impedance to circuit, effectively improves measuring accuracy.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of current sensing means of the utility model.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It removes, be fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
A kind of current sensing means, structural schematic diagram are as shown in Figure 1：Including current output circuit 1, load circuit 2, electricity
Flow table 3；The current sensing means further includes current converter 4；The output end of the current output circuit 1 turns with electric current
The input terminal of parallel operation 4 connects；The output end of the current converter 4 is connect with the input terminal of load circuit 2；The load
The output end of circuit 2 is connect with one end of ammeter 3；The other end of the ammeter 3 is grounded.
Wherein, the operation principle of this programme is as follows：1 output current of current output circuit enters in current converter 4, electric current
The electric current of input is converted into voltage output by converter 4, by output voltage by load circuit 2 after, using ammeter 3 to electric current
It is detected；Corresponding current information can be read by ammeter 3；In the technical scheme, electricity will be inputted by current converter 4
Circulation changes voltage output into, and reads corresponding current information by ammeter 3, is converted using current converter, reduces
Loss of the impedance to circuit, effectively improves measuring accuracy.
In the present embodiment, current output circuit 1 is high-voltage motor current output circuit 1, defeated using high-voltage motor electric current
Go out circuit 1 as output.
In the present embodiment, ammeter 3 be single-phase digital display ammeter 3, using single-phase digital display ammeter 3 to current information into
Row display is more convenient, is more intuitively shown by number and check current information.
In the present embodiment, current converter 4 is to be galvanically isolated acquisition converter, is adopted using acquisition converter is galvanically isolated
Set pair electric current is converted, and working efficiency is improved, and reduces loss of the impedance to circuit.
In the present embodiment, it is analog quantity converter to be galvanically isolated acquisition converter, and input terminal inputs analog current signal,
Output end exports analog voltage signal.
In the present embodiment, current sensing means is mounted in high-voltage motor control box equipment.
Obviously, the above embodiment is merely an example for clearly illustrating the present invention for the utility model, and is not
It is the restriction to embodiments of the present invention.For those of ordinary skill in the art, on the basis of the above description
It can also make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all
All any modification, equivalent and improvement made by within the spirit and principles in the present invention etc. should be included in right of the present invention
It is required that protection domain within.
Claims (6)
1. a kind of current sensing means, including current output circuit, load circuit, ammeter；It is characterized in that：The electric current
Detection device further includes current converter；The output end of the current output circuit and the input terminal of current converter connect；
The output end of the current converter and the input terminal of load circuit connect；The output end and ammeter of the load circuit
One end connection；The other end of the ammeter is grounded.
2. current sensing means according to claim 1, it is characterised in that：The current output circuit is high-voltage motor
Current output circuit.
3. current sensing means according to claim 1, it is characterised in that：The ammeter is single-phase digital display electric current
Table.
4. current sensing means according to claim 1, it is characterised in that：The current converter is to be galvanically isolated to adopt
Collect converter.
5. current sensing means according to claim 4, it is characterised in that：The acquisition converter that is galvanically isolated is mould
Analog quantity converter, input terminal input analog current signal, and output end exports analog voltage signal.
6. current sensing means according to claim 1, it is characterised in that：The current sensing means is mounted on high pressure
In motor operation case equipment.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721841413 | 2017-12-22 | ||
| CN2017218414138 | 2017-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208026791U true CN208026791U (en) | 2018-10-30 |
Family
ID=63909509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820456507.1U Active CN208026791U (en) | 2017-12-22 | 2018-04-02 | A kind of current sensing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208026791U (en) |
-
2018
- 2018-04-02 CN CN201820456507.1U patent/CN208026791U/en active Active
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