CN209041082U - A kind of air compressor frequency converter control circuit - Google Patents
A kind of air compressor frequency converter control circuit Download PDFInfo
- Publication number
- CN209041082U CN209041082U CN201821333346.3U CN201821333346U CN209041082U CN 209041082 U CN209041082 U CN 209041082U CN 201821333346 U CN201821333346 U CN 201821333346U CN 209041082 U CN209041082 U CN 209041082U
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- China
- Prior art keywords
- triode
- air compressor
- collector
- power supply
- varistor
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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.)
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Abstract
The utility model discloses a kind of air compressor frequency converter control circuits, including power supply U, air compressor M and potentiometer RP, the anode of the power supply U is connected with one end of varistor MY, the anode of capacitor C, one end of potentiometer RP and the sliding end of potentiometer RP, the other end of potentiometer RP is connected with the collector of triode Q1, the collector of triode Q2 and the collector of triode Q3, the emitter of triode Q1 is connected with the collector of triode Q4 and the pole the U input terminal of air compressor M, the emitter of triode Q2 is connected with the collector of triode Q5 and the pole the V input terminal of air compressor M, the emitter of triode Q3 is connected with the collector of triode Q6 and the pole the W input terminal of air compressor M；The utility model is designed reasonably, regulation is convenient, can carry out anti-lightning strike protection to air compressor M, and can be realized air compressor M frequency control, and regulation and control cost is low, is conducive to people's use.
Description
Technical field
The utility model relates to air compressor machine control technology field more particularly to a kind of air compressor frequency converter control circuits.
Background technique
Air compressor is the main body in compressed air source unit, it is to be converted into the mechanical energy of prime mover (usually motor)
The device of gas pressure energy, is the pressure generator of compressed air, air compressor is similar with water pump structure.Most of air
Compressor is reciprocating-piston, rotating vane or rotary screw.Traditional air compressor controller is controlled using RS485 communication mode
Frequency converter processed, controller manufacturer is cured to the communications protocol of several frequency converters inside controller before factory, although user
Producer and the model of frequency converter can be independently selected, but selects or has certain limitation.Through retrieving, application No. is
201320488257.7 patent document discloses a kind of air compressor frequency converter control circuit, including CPU, frequency converter and electricity are surveyed
Circuit is measured, electrical measurement circuit includes input voltage sample circuit and input current sample circuit, input voltage sample circuit
The output end of output end and input current sample circuit meets CPU respectively.The control circuit will change under the premise of identical gas production
The electricity consumption for making front and back is compared, and user can see the electricity charge saved after reducing energy consumption, and reducing energy consumption is well understood
Effect.
But above-mentioned design, there is also shortcoming, the transducer control circuit of air compressor machine in the prior art is mostly inconvenient right
Air compressor machine carries out anti-lightning strike protection, and inconvenient to air compressor machine progress frequency control, therefore we have proposed a kind of air compressor machine frequency conversions
Device control circuit is for solving the above problems.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of air compressor machine frequency conversion proposed
Device control circuit.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of air compressor frequency converter control circuit, including power supply U, air compressor M and potentiometer RP, the power supply U's
Anode is connected with the sliding end of one end of varistor MY, the anode of capacitor C, one end of potentiometer RP and potentiometer RP, described
The other end of potentiometer RP is connected with the collector of the collector of triode Q1, the collector of triode Q2 and triode Q3；
The emitter of the triode Q1 is connected with the collector of triode Q4 and the pole the U input terminal of air compressor M, institute
The emitter for stating triode Q2 is connected with the collector of triode Q5 and the pole the V input terminal of air compressor M, the triode Q3
Emitter be connected with the collector of triode Q6 and the pole the W input terminal of air compressor M, cathode, the pressure-sensitive electricity of the power supply U
Hinder transmitting of the emitter of the other end of MY, the cathode of capacitor C, the emitter of triode Q4 and triode Q5 with triode Q6
Pole is connected.
Preferably, the type of the triode Q1, triode Q2, triode Q3, triode Q4, triode Q5 and triode Q6
It number is 2N3055H.
Preferably, the maximum value of the potentiometer RP is 20K Ω.
Preferably, the capacitance of the capacitor C is 300uF.
Preferably, the threshold value of the varistor MY is 300V.
Preferably, the model BD-15A of the air compressor M.
Compared with prior art, the utility model has the beneficial effects that passing through power supply U, triode Q1, triode Q2, three
Pole pipe Q3, triode Q4, triode Q5, triode Q6, varistor MY and capacitor C are matched, and the voltage of power supply U is lower than pressure-sensitive
When the threshold value of resistance MY, varistor MY is in off state, and electric current normally can not be air by varistor MY, power supply U
Compressor M power supply, when power supply U causes overtension by extraneous factor (such as when lightning stroke), the voltage of power supply U is excessively pressure-sensitive
The threshold value of resistance MY, varistor MY is in the conductive state, and electric current flows back to the cathode of power supply U by varistor MY, prevents from supplying
The overtension of power supply U and air compressor M is damaged, triode Q1, triode Q2, triode Q3, triode Q4,
Triode Q5 and triode Q6 collectively forms the frequency changer circuit of air compressor M, which can only be connected two three every time
(i.e. triode Q1 and triode Q4 cannot be simultaneously turned on pole pipe, and triode Q3 and triode Q5 cannot be simultaneously turned on, triode Q3
Cannot be simultaneously turned on triode Q6), two phase coils of air compressor M are passed into direct current, drive air compressor M rotor
Operating, another phase coil no power, but have induced voltage, it may determine that the position of rotor according to the size of induced voltage, into
And control winding power-up sequence, realize the frequency control to air compressor M.
The utility model is designed reasonably, regulation is convenient, can carry out anti-lightning strike protection to air compressor M, and can be real
Air compressor M frequency control is showed, regulation and control cost is low, is conducive to people's use.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of air compressor frequency converter control circuit circuit connection diagram.
Specific embodiment
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
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1, a kind of air compressor frequency converter control circuit, including power supply U, air compressor M and potentiometer RP, power supply
The anode of U is connected with the sliding end of one end of varistor MY, the anode of capacitor C, one end of potentiometer RP and potentiometer RP, electricity
The other end of position device RP is connected with the collector of the collector of triode Q1, the collector of triode Q2 and triode Q3；Three poles
The emitter of pipe Q1 is connected with the collector of triode Q4 and the pole the U input terminal of air compressor M, and the emitter of triode Q2 connects
It is connected to the collector of triode Q5 and the pole the V input terminal of air compressor M, the emitter of triode Q3 is connected with triode Q6's
The pole the W input terminal of collector and air compressor M, the cathode of power supply U, the other end of varistor MY, the cathode of capacitor C, three
The emitter of pole pipe Q4 and the emitter of triode Q5 are connected with the emitter of triode Q6, pass through power supply U, triode
Q1, triode Q2, triode Q3, triode Q4, triode Q5, triode Q6, varistor MY and capacitor C are matched, power supply U
Voltage when being lower than the threshold value of varistor MY, varistor MY be in off state, and electric current can not be electric by varistor MY
Source U is normally air compressor M power supply, when power supply U causes overtension by extraneous factor (such as when lightning stroke), power supply U
The voltage excessively threshold value of varistor MY, varistor MY is in the conductive state, and electric current flows back to power supply U by varistor MY
Cathode, prevent the overtension of power supply U and air compressor M damaged, triode Q1, triode Q2, three poles
Pipe Q3, triode Q4, triode Q5 and triode Q6 collectively form the frequency changer circuit of air compressor M, and the frequency changer circuit is each
Two triodes can only be connected, and (i.e. triode Q1 and triode Q4 cannot be simultaneously turned on, and triode Q3 and triode Q5 cannot be same
When be connected, triode Q3 and triode Q6 cannot be simultaneously turned on), two phase coils of air compressor M are passed into direct current, drive
The operating of air compressor M rotor, another phase coil no power, but have induced voltage, it may determine that according to the size of induced voltage
The position of rotor out, and then control winding power-up sequence, realize the frequency control to air compressor M, and the utility model is set
Rationally, regulation is convenient for meter, can carry out anti-lightning strike protection to air compressor M, and can be realized air compressor M frequency conversion control
System, regulation and control cost is low, is conducive to people's use.
In the utility model, triode Q1, triode Q2, triode Q3, triode Q4, triode Q5 and triode Q6
Model is 2N3055H, and the maximum value of potentiometer RP is 20K Ω, and the capacitance of capacitor C is 300uF, the threshold value of varistor MY
Pass through power supply U, triode Q1, triode Q2, triode Q3, triode for 300V, the model BD-15A of air compressor M
Q4, triode Q5, triode Q6, varistor MY and capacitor C are matched, and the voltage of power supply U is lower than the threshold value of varistor MY
When, varistor MY is in off state, and electric current normally can not be air compressor M power supply by varistor MY, power supply U,
When power supply U causes overtension by extraneous factor (such as when lightning stroke), the voltage of the power supply U excessively threshold of varistor MY
Value, varistor MY is in the conductive state, and electric current flows back to the cathode of power supply U by varistor MY, prevents the electricity of power supply U
Press through high and air compressor M damaged, triode Q1, triode Q2, triode Q3, triode Q4, triode Q5 and
Triode Q6 collectively forms the frequency changer circuit of air compressor M, which can only be connected two triode (i.e. three poles every time
Pipe Q1 and triode Q4 cannot be simultaneously turned on, and triode Q3 and triode Q5 cannot be simultaneously turned on, triode Q3 and triode Q6
Cannot simultaneously turn on), two phase coils of air compressor M are passed into direct current, driving air compressor M rotor operating is another
Phase coil no power, but have induced voltage, it may determine that the position of rotor, and then control winding according to the size of induced voltage
Power-up sequence realizes the frequency control to air compressor M, and the utility model is designed reasonably, regulation is convenient, can be to air
Compressor M carries out anti-lightning strike protection, and can be realized air compressor M frequency control, and regulation and control cost is low, and being conducive to people makes
With.
Working principle: varistor MY is a kind of resistance device with nonlinear wind vibration, is mainly used in circuit
It bears to carry out voltage clamping when over-voltage, absorbs extra electric current to protect Sensitive Apparatus, in use, the voltage as power supply U is lower than
When the threshold value of varistor MY, varistor MY is in off state, and electric current can be able to not be by varistor MY, power supply U
Air compressor M normal power supply, when power supply U causes overtension by extraneous factor (such as when lightning stroke), the voltage of power supply U
The excessively threshold value of varistor MY, varistor MY is in the conductive state at this time, and electric current can flow back to electricity by varistor MY
The cathode of source U prevents the overtension of power supply U and damages to air compressor M, and air compressor M is in circuit
When normal operation, triode Q1, triode Q2, triode Q3, triode Q4, triode Q5 and triode Q6 collectively form air
The frequency changer circuit of compressor M, which can only be connected two triodes every time, and (i.e. triode Q1 and triode Q4 cannot be same
When be connected, triode Q3 and triode Q5 cannot be simultaneously turned on, and triode Q3 and triode Q6 cannot be simultaneously turned on), by air
Two phase coils of compressor M pass to direct current, driving air compressor M rotor operating, another phase coil no power, but have induction
Voltage may determine that the position of rotor, and then control winding power-up sequence according to the size of induced voltage, realize to air
The frequency control of compressor M.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of air compressor frequency converter control circuit, including power supply U, air compressor M and potentiometer RP, which is characterized in that institute
The anode for stating power supply U is connected with the cunning of one end of varistor MY, the anode of capacitor C, one end of potentiometer RP and potentiometer RP
Moved end, the other end of the potentiometer RP are connected with the collector of triode Q1, the collector of triode Q2 and triode Q3
Collector；
The emitter of the triode Q1 is connected with the collector of triode Q4 and the pole the U input terminal of air compressor M, and described three
The emitter of pole pipe Q2 is connected with the collector of triode Q5 and the pole the V input terminal of air compressor M, the hair of the triode Q3
Emitter-base bandgap grading is connected with the collector of triode Q6 and the pole the W input terminal of air compressor M, cathode, the varistor MY of the power supply U
The other end, the cathode of capacitor C, the emitter of triode Q4 and triode Q5 emitter with the emitter phase of triode Q6
Connection.
2. a kind of air compressor frequency converter control circuit according to claim 1, which is characterized in that the triode Q1, three
Pole pipe Q2, triode Q3, triode Q4, triode Q5 and triode Q6 model be 2N3055H.
3. a kind of air compressor frequency converter control circuit according to claim 1, which is characterized in that the potentiometer RP is most
Big resistance value is 20K Ω.
4. a kind of air compressor frequency converter control circuit according to claim 1, which is characterized in that the capacitance of the capacitor C
For 300uF.
5. a kind of air compressor frequency converter control circuit according to claim 1, which is characterized in that the varistor MY's
Threshold value is 300V.
6. a kind of air compressor frequency converter control circuit according to claim 1, which is characterized in that the air compressor M
Model BD-15A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821333346.3U CN209041082U (en) | 2018-08-18 | 2018-08-18 | A kind of air compressor frequency converter control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821333346.3U CN209041082U (en) | 2018-08-18 | 2018-08-18 | A kind of air compressor frequency converter control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209041082U true CN209041082U (en) | 2019-06-28 |
Family
ID=67031135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821333346.3U Expired - Fee Related CN209041082U (en) | 2018-08-18 | 2018-08-18 | A kind of air compressor frequency converter control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209041082U (en) |
-
2018
- 2018-08-18 CN CN201821333346.3U patent/CN209041082U/en not_active Expired - Fee Related
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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: 20190628 Termination date: 20210818 |