CN207008023U - A kind of motor status detection means - Google Patents
A kind of motor status detection means Download PDFInfo
- Publication number
- CN207008023U CN207008023U CN201720148942.3U CN201720148942U CN207008023U CN 207008023 U CN207008023 U CN 207008023U CN 201720148942 U CN201720148942 U CN 201720148942U CN 207008023 U CN207008023 U CN 207008023U
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- detection
- circuit
- detection circuit
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- gating
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- 238000001514 detection method Methods 0.000 title claims abstract description 96
- 230000005611 electricity Effects 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
Abstract
It the utility model is related to a kind of motor status detection means, including middle control module, middle control module is electrically connected with current detection module, voltage detection module, fault detection module, display module and key-press module, current detection module includes temperature sensor, current detection sensor, gating circuit, first detection circuit and the second detection circuit, current detection sensor electrically connects with the described first detection circuit and the second detection circuit, temperature sensor electrically connects with the input of gating circuit, gating circuit output end is electrically connected the first detection circuit and the second detection circuit.The utility model can be according to environment temperature; detection circuit is selected; adjust the benchmark of over-current detection; when motor is raised and lowered because of temperature; the standard of overcurrent is inconsistent; avoid motor because the operation of temperature change excessively stream and caused by damage, and during motor normal operation, the forced stoppage because of excessively stream alarm.
Description
Technical field
It the utility model is related to electric detection technique field, more particularly to a kind of motor status detection means.
Background technology
Motor status detection can reflect the real time status of motor in operation, can find failure problems in time, and adopt
Corresponding measure is taken, avoids motor because electric power system fault suffers damage, mitigates motor and is damaged caused by faults itself.
Some current sensing means of the prior art, it is capable of the real-time current of measurement motor, occurs in overcurrent phenomenon
When, information warning can be sent in time and takes corresponding safeguard measure, avoid motor component from suffering damage, still, motor
Workplace is different to cause the operating ambient temperature of motor higher with factors such as seasons, and environment temperature can be made to the electric current of motor
Into certain influence, the rated operational current of motor is raised and lowered, still, in existing detection means, the detection to motor
Typically do not consider environmental factor, cause in some cases, especially under high-temperature situation, detection means can not be adjusted according to environmental change
Whole examination criteria, cause motor continuous service under overcurrent condition and cause motor damage, or motor operation is normal, but examine
Survey result and show overcurrent, forced stoppage influences the normal operation of motor.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of according to the temperature factor of running environment adjustment excessively stream
The motor status detection means of examination criteria.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of motor status detection means, including in
Control module, the middle control module is electrically connected with current detection module, voltage detection module, fault detection module, display module and
Key-press module, the current detection module include temperature sensor, current detection sensor, gating circuit, the first detection circuit
With the second detection circuit, the current detection sensor electrically connects with the described first detection circuit and the second detection circuit, described
Temperature sensor electrically connects with the input of the gating circuit, and the gating circuit output end is electrically connected first inspection
Slowdown monitoring circuit and the second detection circuit.
As preferable technical scheme, the current detection sensor is Hall current detection sensor.
As preferable technical scheme, the gating circuit includes the first transistor and second transistor, and described first is brilliant
The base stage of body pipe is connected with the normally-closed contact of the temperature sensor, and the colelctor electrode of the first transistor is electrically connected to described
The gating end of one detection circuit；The base stage of the second transistor is connected with the normally opened contact of the temperature sensor, and described
The colelctor electrode of two-transistor is electrically connected to the gating end of the second detection circuit.
As preferable technical scheme, the first detection circuit and the second detection circuit include voltage ratio compared with
Device, the current detection sensor are electrically connected to the in-phase input end of the voltage comparator, the voltage comparator it is anti-phase
Input is connected with two adjustment resistance, and the output end of the voltage comparator electrically connects with the middle control module, the voltage
The gating end of comparator electrically connects with the gating circuit.
As preferable technical scheme, the voltage comparator is voltage comparator chip LM311.
By adopting the above-described technical solution, the beneficial effects of the utility model are：The utility model is provided with two inspections
Slowdown monitoring circuit, the examination criteria of two detection circuits is different, and suitable detection is selected temperature detection result according to temperature sensor
Circuit, the utility model can be selected detection circuit according to environment temperature, the benchmark of over-current detection are adjusted, in motor
When being raised and lowered because of temperature, the standard of overcurrent is inconsistent, avoid motor because temperature change excessively stream operation and caused by damage,
And during motor normal operation, the forced stoppage because of excessively stream alarm.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the circuit block diagram of the utility model embodiment；
Fig. 2 is the circuit block diagram of the utility model embodiment current detection module；
Fig. 3 is Fig. 2 circuit theory diagrams.
Embodiment
As Fig. 1 to Fig. 3 is jointly shown, a kind of motor status detection means, including middle control module, the middle control module are electrically connected
It is connected to current detection module, voltage detection module, fault detection module, display module and key-press module, current detection module bag
Include temperature sensor, current detection sensor, gating circuit, the first detection circuit and the second detection circuit, current detecting sensing
Device electrically connects with the first detection circuit and the second detection circuit, and temperature sensor electrically connects with the input of gating circuit, gating
Circuit output end is electrically connected the first detection circuit and the second detection circuit.
Preferably, current detection sensor is Hall current detection sensor.
Gating circuit includes the first transistor Q1 and second transistor Q2, the first transistor Q1 base stage and temperature sensor
Normally-closed contact J1-1 series connection, the first transistor Q1 colelctor electrode is electrically connected to the gating end of the first detection circuit；Second crystal
Pipe Q2 base stage is connected with the normally opened contact J1-2 of temperature sensor, and second transistor Q2 colelctor electrode is electrically connected to the second detection
The gating end of circuit.
First detection circuit includes, and current detection sensor is electrically connected to the in-phase input end pin of voltage comparator ic 1
2, the inverting input pin 3 of voltage comparator ic 1 is connected with two adjustment resistance R3, R4, changes adjustment resistance R3, R4 resistance
Value can adjust the size of reference voltage, the first over-current detection end of the output pin 7 of voltage comparator ic 1 and middle control module
GL1 is electrically connected, and the gating end pin 6 of voltage comparator ic 1 electrically connects with the colelctor electrode of the first transistor Q1 in gating circuit.
Second detection circuit includes voltage comparator ic 2, and current detection sensor is electrically connected to the same of voltage comparator ic 2
Phase input pin 2, the inverting input pin 3 of voltage comparator ic 2 are connected with two adjustment resistance R8, R9, change adjustment
Resistance R8, R9 resistance can adjust the size of reference voltage, the output pin 7 of voltage comparator ic 2 and middle control module
Second over-current detection end GL2 is electrically connected, the gating end pin 6 of voltage comparator ic 2 and the first transistor Q2 in gating circuit
Colelctor electrode electrically connects.
Preferably, voltage comparator ic 1 and voltage comparator ic 2 are voltage comparator chip LM311.
When temperature sensor detects that temperature is less than setting value, transistor Q1 conductings, the first detection circuit work, to electricity
Stream is detected；When temperature sensor detects that temperature is higher than setting value, normally opened contact J1-2 closures, normally-closed contact J1-1 is beaten
Open, transistor Q2 conductings, the second detection circuit work, electric current is detected.
The advantages of general principle of the present utility model, principal character and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (5)
- A kind of 1. motor status detection means, it is characterised in that：Including middle control module, the middle control module is electrically connected with electric current inspection Survey module, voltage detection module, fault detection module, display module and key-press module, the current detection module include temperature Sensor, current detection sensor, gating circuit, the first detection circuit and the second detection circuit, the current detection sensor Electrically connected with the described first detection circuit and the second detection circuit, the input electricity of the temperature sensor and the gating circuit Connection, the gating circuit output end are electrically connected the first detection circuit and the second detection circuit.
- A kind of 2. motor status detection means as claimed in claim 1, it is characterised in that：The current detection sensor is suddenly That current detection sensor.
- A kind of 3. motor status detection means as claimed in claim 1, it is characterised in that：It is brilliant that the gating circuit includes first Body pipe and second transistor, the base stage of the first transistor are connected with the normally-closed contact of the temperature sensor, and described first The colelctor electrode of transistor is electrically connected to the gating end of the first detection circuit；The base stage of the second transistor and the temperature The normally opened contact series connection of sensor, the colelctor electrode of the second transistor are electrically connected to the gating end of the second detection circuit.
- A kind of 4. motor status detection means as claimed in claim 1, it is characterised in that：The first detection circuit and second Detection circuit includes a voltage comparator, and the current detection sensor is electrically connected to the same mutually defeated of the voltage comparator Enter end, the inverting input of the voltage comparator is connected with two adjustment resistance, the output end of the voltage comparator and institute Middle control module electrical connection is stated, the gating end of the voltage comparator electrically connects with the gating circuit.
- A kind of 5. motor status detection means as claimed in claim 4, it is characterised in that：The voltage comparator is voltage ratio Compared with device chip LM311.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720148942.3U CN207008023U (en) | 2017-02-17 | 2017-02-17 | A kind of motor status detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720148942.3U CN207008023U (en) | 2017-02-17 | 2017-02-17 | A kind of motor status detection means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207008023U true CN207008023U (en) | 2018-02-13 |
Family
ID=61429563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720148942.3U Expired - Fee Related CN207008023U (en) | 2017-02-17 | 2017-02-17 | A kind of motor status detection means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207008023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110736927A (en) * | 2019-10-15 | 2020-01-31 | 博能传动(苏州)有限公司 | permanent magnet synchronous motor initial magnetic pole position identification and broken line detection method |
-
2017
- 2017-02-17 CN CN201720148942.3U patent/CN207008023U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110736927A (en) * | 2019-10-15 | 2020-01-31 | 博能传动(苏州)有限公司 | permanent magnet synchronous motor initial magnetic pole position identification and broken line detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20190217 |