CN206973839U - control circuit of variable-frequency air conditioner - Google Patents
control circuit of variable-frequency air conditioner Download PDFInfo
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- CN206973839U CN206973839U CN201720787841.0U CN201720787841U CN206973839U CN 206973839 U CN206973839 U CN 206973839U CN 201720787841 U CN201720787841 U CN 201720787841U CN 206973839 U CN206973839 U CN 206973839U
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- contactor
- drive module
- conditioner
- frequency conversion
- control mainboard
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Abstract
The utility model provides a kind of control circuit of variable-frequency air conditioner, including connecting the frequency conversion drive module (2) of compressor of air conditioner (1), in addition to the contactor (5) with the airconditioning control mainboard (3) of frequency conversion drive module communication connection and with airconditioning control mainboard communication connection；The frequency conversion drive module connects external power source through the contactor, and the airconditioning control mainboard communicates to connect with air-conditioner temperature controller (4)；The airconditioning control mainboard sends a control signal to the contactor according to the switch command of the temperature controller, to control being switched on or switched off for the contactor.When convertible frequency air-conditioner or convertible frequency air-conditioner unit need to be in holding state, can be by disconnect the mode power consumption of contactor big frequency conversion drive module and its attached parts power down, only airconditioning control mainboard obtains electric, so that the standby power of convertible frequency air-conditioner or convertible frequency air-conditioner unit is in minimum state, the standby electricity charge are saved for user.
Description
Technical field
It the utility model is related to field of air conditioning, more particularly to a kind of control circuit of variable-frequency air conditioner.
Background technology
Compared with fixed frequency air conditioner, for convertible frequency air-conditioner unit because control is complicated, electrical equipment is more, so standby power can be more
Greatly.Among one day, convertible frequency air-conditioner unit, which has portion of time, to be needed to be in holding state, to reduce power consumption, is saved for user
Cost-saving.In order to easy to use, and often influence of the power-off to unit durability is avoided, typically will not be by completely cutting through power supply electricity
The mode in source causes the convertible frequency air-conditioner unit to be in holding state.
Utility model content
The utility model provides a kind of control circuit of variable-frequency air conditioner.
Specifically, the utility model is achieved by the following technical solution：
According to first aspect of the present utility model, there is provided a kind of control circuit of variable-frequency air conditioner, including to connect air-conditioning pressure
The frequency conversion drive module of contracting machine, in addition to the frequency conversion drive module communication connection airconditioning control mainboard and with the sky
Adjust the contactor of control mainboard communication connection；
The frequency conversion drive module connects external power source, the airconditioning control mainboard and air-conditioner temperature controller through the contactor
Communication connection；
The airconditioning control mainboard sends a control signal to the contactor according to the switch command of the temperature controller, with
Control being switched on or switched off for the contactor.
Alternatively, the frequency conversion drive module include driven compressor control unit and with the drive control unit phase
Attached component even.
Alternatively, the attached component includes capacitor and reactor.
Alternatively, the airconditioning control mainboard includes single-chip microcomputer and the relay being connected with the single-chip microcomputer, the list
Piece machine control relay break-make.
Alternatively, the airconditioning control mainboard is provided with the detection unit for being used for detecting Air-conditioning Cycle coolant-temperature gage, the inspection
Unit is surveyed with the single-chip microcomputer to be connected.
Alternatively, the contactor is connected in series on external power source and the live wire connecting path of frequency conversion drive module.
The technical scheme provided from above the utility model embodiment, the utility model pass through in external power source and change
Series contactor between frequency drive module, and by airconditioning control mainboard according to the switch command of temperature controller come the logical of control contactor
Disconnected state, so as to whether control the power supply of frequency conversion drive module.When convertible frequency air-conditioner or convertible frequency air-conditioner unit need to be in standby shape
, can be only empty by disconnect the mode power consumption of contactor big frequency conversion drive module and its attached parts power down during state
Adjust control mainboard to obtain electric, so that convertible frequency air-conditioner or convertible frequency air-conditioner unit standby power are in minimum state, saved for user
The standby electricity charge.
It should be appreciated that the general description and following detailed description of the above are only exemplary and explanatory, not
The utility model can be limited.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, without having to pay creative labor, can also be attached according to these
Figure obtains other accompanying drawings.
Fig. 1 is the structural representation of the control circuit of variable-frequency air conditioner of the utility model embodiment；
Fig. 2 is the structural representation of the control circuit of variable-frequency air conditioner of another embodiment of the utility model；
Fig. 3 is the structural representation of the airconditioning control mainboard of the utility model embodiment.
Reference：
1：Compressor；
2：Frequency conversion drive module；
3：Airconditioning control mainboard；31：Processor；32：Relay；33：Detection unit；
4：Temperature controller；
5：Contactor.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the utility model.On the contrary, they be only with such as
The example of the consistent apparatus and method of some aspects being described in detail in appended claims, of the present utility model.
It is only merely for the purpose of description specific embodiment in the term that the utility model uses, and is not intended to be limiting this reality
With new." one kind ", " described " and "the" of singulative used in the utility model and appended claims
It is intended to include most forms, unless context clearly shows that other implications.It is also understood that term used herein " and/
Or " refer to and any or all may be combined comprising the associated list items purposes of one or more.
It will be appreciated that though various information may be described using term first, second, third, etc. in the utility model,
But these information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, not
In the case of departing from the scope of the utility model, the first information can also be referred to as the second information, and similarly, the second information can also
It is referred to as the first information.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or
" when ... " or " in response to determining ".
Below in conjunction with the accompanying drawings, control circuit of variable-frequency air conditioner of the present utility model is described in detail.In the feelings not conflicted
Under condition, the feature in following embodiment and embodiment can be mutually combined.
Referring to Fig. 1, control circuit of variable-frequency air conditioner that the utility model embodiment provides, the control circuit may include to
Connect frequency conversion drive module 2, airconditioning control mainboard 3 and the contactor 5 of compressor of air conditioner 1.Wherein, the frequency conversion drive module
2 are connected with the compressor 1, and the airconditioning control mainboard 3 communicates to connect with the frequency conversion drive module 2, the airconditioning control
Mainboard 3 is engaged with the frequency conversion drive module 2, so as to control the work of compressor 1.
The airconditioning control mainboard 3 communicates to connect with air-conditioner temperature controller 4, and airconditioning control mainboard 3 can obtain temperature controller 4 in real time
Switch command.In the present embodiment, temperature controller 4 includes conducting state (ON) and off-state (OFF), when temperature controller 4 is in not
With state when, airconditioning control mainboard 3 can detect different switch commands, so that airconditioning control mainboard 3 can be according to temperature
Control the conducting (corresponding convertible frequency air-conditioner needs to be in opening) of device 4 or disconnect (corresponding convertible frequency air-conditioner needs to be in holding state)
Further control contactor 5 is switched on or switched off.Wherein, switch command can be presented in the form of level, for example, switch command
Show that temperature controller 4 is off for low level, switch command is that high level shows that temperature controller 4 is in the conduction state.
The frequency conversion drive module 2 connects external power source through the contactor 5.In the present embodiment, to realize to the change
The power supply of frequency drive module 2, the external power source are alternating current.Alternatively, the external power source is civil power.Certainly, at other
In some examples, the external power source is alternatively the power supply of other exportable alternating currents.
The contactor 5 communicates to connect with the airconditioning control mainboard 3, and the airconditioning control mainboard 3 is according to the temperature control
The switch command of device 4 sends a control signal to the contactor 5, to control being switched on or switched off for the contactor 5, corresponding control
Make and be connected or disconnect between the frequency conversion drive module 2 and the external power source.Specifically, when the airconditioning control mainboard 3
When detecting that the temperature controller 4 is off, then send for controlling the control signal that the contactor 5 disconnects to described
Contactor 5, so that external power source disconnects the power supply to frequency conversion drive module 2, convertible frequency air-conditioner is in holding state.When described
When airconditioning control mainboard 3 detects that the temperature controller 4 is in the conduction state, then send what is connected for controlling the contactor 5
Control signal is to the contactor 5 so that external power source opens the power supply to frequency conversion drive module 2, so that convertible frequency air-conditioner
Normal work (refrigeration or heating).
In the utility model embodiment, by the series contactor 5 between external power source and frequency conversion drive module 2, and by
Airconditioning control mainboard 3 according to the switch command of temperature controller 4 come the on off operating mode of control contactor 5, so as to control frequency conversion drive mould
Whether is the power supply of block 2., can be by disconnecting the mode frequency conversion of contactor 5 when convertible frequency air-conditioner needs to be in holding state
Drive module 2 and its attached parts power down, only airconditioning control mainboard 3 must be electric, so that convertible frequency air-conditioner standby power is in
Minimum state, the standby electricity charge are saved for user.
In the present embodiment, the switch command of temperature controller 4 is the temperature of the temperature threshold or system default set according to user
Threshold value is spent to determine.For example, in a heating mode, when temperature controller 4 judges that its current environmental temperature detected is more than institute
When stating temperature threshold (for example, 25 °), then it is controlled to be off.When temperature controller 4 judges its current environment detected
When temperature is less than or equal to the temperature threshold, then control its in the conduction state.In cooling mode, when temperature controller 4 is sentenced
Break when its current environmental temperature detected and being more than the temperature threshold (for example, 20 °), then control its in the conduction state.
When temperature controller 4 judges that its current environmental temperature detected is less than or equal to the temperature threshold, then it is controlled to be in
Off-state.
In the present embodiment, referring to Fig. 2, to realize the power reguirements of safety, contactor 5 is connected in series in external power source with becoming
On live wire (L in Fig. 2) path of frequency drive module 2.In addition, N represents zero line in Fig. 2.
Airconditioning control mainboard 3 in the utility model embodiment is to simplify signal.With reference to Fig. 2 and Fig. 3, for described in control
Contactor 5 is switched on or switched off, the airconditioning control mainboard 3 may include processor 31 and be connected with the processor 31 after
Electrical equipment 32.Wherein, the temperature controller 4 is connected with the processor 31 communication, and the relay 32 connects the control of the contactor 5
End processed, to control being switched on or switched off for the contactor 5.Specifically, the processor 31 detects that the temperature controller 4 is in disconnected
Open state, the then signal that the transmission control relay 32 powers off to the relay 32, is disconnected with triggering the contactor 5,
So as to disconnect the connection between external power source and frequency conversion drive module 2, reduce the standby power of convertible frequency air-conditioner, save expense.Institute
State processor 31 and detect that the temperature controller 4 is in the conduction state, then transmission controls the signal that the relay 32 is powered to institute
Relay 32 is stated, must be conducted with triggering the contactor 5, so as to connect external power source and frequency conversion drive module 2 so that be outside
Power supply can power to frequency conversion drive module 2, control the normal work of compressor 1.
In addition, the processor 31 can be single-chip microcomputer, such as ARM (Advanced RISC Machines, RISC microprocessors
Device), the single-chip microcomputer such as AVR (RISC reduced instruction set computers 8-bit High-Speed Microcontroller), can also be ASIC (Application Specific
Integrated Circuit, application specific integrated circuit) chip.
Referring to Fig. 3, it can also be provided be used to detect air-conditioner circulating water in certain embodiments, on the airconditioning control mainboard 3
The detection unit 33 of temperature, the detection unit 33 are connected with the processor 31.Wherein, the detection unit 33 can be arranged on
In the water pump for transmitting recirculated water, when the detection unit 33 detects that the Air-conditioning Cycle coolant-temperature gage is less than or equal to predetermined threshold value
When (for example, 0 °), processor 31 then sends the signal for controlling the relay 32 to be powered to the relay 32, with described in triggering
Contactor 5 must conduct, so as to connect external power source and frequency conversion drive module 2 so that external power source can be to frequency conversion drive mould
Block 2 is powered, and control compressor 1 heats, and realizes the anti-frost protection of water system.
It should be noted that the frequency conversion drive module 2 in the utility model embodiment be simplify signal, its may include with
The connected driven compressor control unit of compressor and the attached component being connected with the drive control unit.Wherein, it is described
Attached component may include capacitor and reactor.Certainly, the attached component may also include other devices.
The utility model embodiment also provides a kind of convertible frequency air-conditioner unit, the unit may include multiple convertible frequency air-conditioners and
Above-mentioned control circuit of variable-frequency air conditioner.Wherein, the frequency conversion drive module 2 in the control circuit of variable-frequency air conditioner and the pressure of each air-conditioning
Contracting machine 1 is connected, and the airconditioning control mainboard 3 in the control circuit of variable-frequency air conditioner is connected with the temperature controller 4 of each air-conditioning.
When airconditioning control mainboard 3 detects that any temperature controller 4 is off, then transmission controls the contactor 5 disconnected
The signal opened so as to disconnect power supply of the external power source to frequency conversion drive module 2, reduces standby power to the contactor, for
The electricity charge are saved at family.And when airconditioning control mainboard 3 detects that all temperature controllers 4 are in conducting state, then send described in control and connect
The signal that tentaculum 5 is connected is to the contactor, so that power supply of the external power source to frequency conversion drive module 2, to cause each sky
The compressor of tune being capable of normal work.
In the present embodiment, the air-conditioning may include outdoor unit and indoor set.Wherein, the compressor 1 is located at the room
On outer machine.The temperature controller 4 is on the indoor set, so as to detect the environment temperature of interior.
In addition, the type of temperature controller 4 can select as needed.In some instances, it is the precision of guarantee detection, the temperature
It can be electronic temperature controller to control device 4.For example, resistance-type temperature controller or thermojunction type temperature controller etc..In some instances, the temperature
Control device 4 is purpose digital temperature controller, with more precisely induced environment temperature.In some instances, the temperature controller 4 can be machinery
Formula temperature controller.
In certain embodiments, temperature controller 4 is alternatively into temperature sensor, the ring that temperature sensor is directly detected
Border temperature feedback is empty according to the environment temperature, temperature threshold and frequency conversion by airconditioning control mainboard 3 to airconditioning control mainboard 3
The mode of operation (refrigeration or heating) of tune controls being switched on or switched off for the contactor 5.For example, in a heating mode, work as sky
When the current environmental temperature for adjusting control mainboard 3 to judge to receive is more than the temperature threshold, then sends and disconnect the contactor 5
Control signal to the contactor 5 so that external power source stops powering to the frequency conversion drive module 2, convertible frequency air-conditioner unit
In holding state.When the current environmental temperature that airconditioning control mainboard 3 is judged to receive is less than or equal to the temperature threshold
During value, then send and connect the control signal of the contactor 5 to the contactor 5 so that external power source is to the frequency conversion drive
Module 2 is powered, and convertible frequency air-conditioner unit is heated.In cooling mode, when airconditioning control mainboard 3 judge to receive it is current
When environment temperature is more than the temperature threshold, then sends and connect the control signal of the contactor 5 to the contactor 5 so that
External power source is powered to the frequency conversion drive module 2, and convertible frequency air-conditioner unit is freezed.When airconditioning control mainboard 3 is judged to connect
When the current environmental temperature received is less than or equal to the temperature threshold, then the control signal for disconnecting the contactor 5 is sent
To the contactor 5 so that external power source stops powering to the frequency conversion drive module 2, and convertible frequency air-conditioner unit is in standby shape
State.
Especially, the convertible frequency air-conditioner unit can be trilogy supply air conditioner water heating machine.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements done etc., the utility model should be included in
Within the scope of protection.
Claims (6)
1. a kind of control circuit of variable-frequency air conditioner, including to connect the frequency conversion drive module of compressor of air conditioner, it is characterised in that also
Communicated to connect including the airconditioning control mainboard communicated to connect with the frequency conversion drive module and with the airconditioning control mainboard
Contactor；
The frequency conversion drive module connects external power source through the contactor, and the airconditioning control mainboard communicates with air-conditioner temperature controller
Connection；
The airconditioning control mainboard sends a control signal to the contactor according to the switch command of the temperature controller, with control
The contactor is switched on or switched off.
2. control circuit of variable-frequency air conditioner as claimed in claim 1, it is characterised in that the frequency conversion drive module includes compressor
Drive control unit and the attached component being connected with the drive control unit.
3. control circuit of variable-frequency air conditioner as claimed in claim 2, it is characterised in that the attached component includes capacitor and electricity
Anti- device.
4. control circuit of variable-frequency air conditioner as claimed in claim 1, it is characterised in that the airconditioning control mainboard includes single-chip microcomputer
And the relay being connected with the single-chip microcomputer, the single-chip microcomputer control relay break-make.
5. control circuit of variable-frequency air conditioner as claimed in claim 4, it is characterised in that the airconditioning control mainboard, which is provided with, to be used for
The detection unit of Air-conditioning Cycle coolant-temperature gage is detected, the detection unit is connected with the single-chip microcomputer.
6. control circuit of variable-frequency air conditioner as claimed in claim 1, it is characterised in that the contactor is connected in series in external electrical
On the live wire connecting path of source and frequency conversion drive module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720787841.0U CN206973839U (en) | 2017-06-30 | 2017-06-30 | control circuit of variable-frequency air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720787841.0U CN206973839U (en) | 2017-06-30 | 2017-06-30 | control circuit of variable-frequency air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206973839U true CN206973839U (en) | 2018-02-06 |
Family
ID=61406888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720787841.0U Active CN206973839U (en) | 2017-06-30 | 2017-06-30 | control circuit of variable-frequency air conditioner |
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| Country | Link |
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| CN (1) | CN206973839U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112240283A (en) * | 2019-07-17 | 2021-01-19 | 海信容声(广东)冰箱有限公司 | Compressor control device and method |
| CN114485030A (en) * | 2020-10-27 | 2022-05-13 | 海信（山东）冰箱有限公司 | Temperature control circuit, refrigeration equipment and control method |
-
2017
- 2017-06-30 CN CN201720787841.0U patent/CN206973839U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112240283A (en) * | 2019-07-17 | 2021-01-19 | 海信容声(广东)冰箱有限公司 | Compressor control device and method |
| CN112240283B (en) * | 2019-07-17 | 2024-07-02 | 海信容声(广东)冰箱有限公司 | Compressor control device and method |
| CN114485030A (en) * | 2020-10-27 | 2022-05-13 | 海信（山东）冰箱有限公司 | Temperature control circuit, refrigeration equipment and control method |
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