CN111775657B - Air conditioner condenser fan control circuit, device and car - Google Patents
Air conditioner condenser fan control circuit, device and car Download PDFInfo
- Publication number
- CN111775657B CN111775657B CN202010671979.0A CN202010671979A CN111775657B CN 111775657 B CN111775657 B CN 111775657B CN 202010671979 A CN202010671979 A CN 202010671979A CN 111775657 B CN111775657 B CN 111775657B
- Authority
- CN
- China
- Prior art keywords
- circuit
- control circuit
- air
- capacitor
- condenser fan
- Prior art date
- 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.)
- Active
Links
- 238000004378 air conditioning Methods 0.000 claims abstract description 60
- 238000005057 refrigeration Methods 0.000 claims abstract description 45
- 239000003990 capacitor Substances 0.000 claims description 70
- 230000010355 oscillation Effects 0.000 claims description 32
- 230000003321 amplification Effects 0.000 claims description 29
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 29
- 239000002699 waste material Substances 0.000 abstract description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 238000004134 energy conservation Methods 0.000 abstract 1
- 239000003570 air Substances 0.000 description 41
- 238000000034 method Methods 0.000 description 9
- 230000005494 condensation Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention belongs to the technical field of automobile air conditioners and discloses an air conditioner condenser fan control circuit, an air conditioner condenser fan control device and an automobile. The fan control circuit of the air conditioner condenser comprises an oscillating circuit, a rectifying circuit and a rotating speed control circuit; the oscillating circuit receives a pressure electric signal output by the air-conditioning refrigeration system and outputs sinusoidal alternating current to the rectifying circuit according to the pressure electric signal; the rectifying circuit rectifies the sine alternating current and outputs direct current to the rotating speed control circuit; the rotation speed control circuit controls the rotation speed of the condenser fan according to the direct current. The invention determines the rotating speed of the fan according to the pressure of the air-conditioning refrigeration system, realizes energy conservation of the condensing fan, simultaneously controls the air-conditioning condenser fan independently, avoids overlarge instantaneous current caused by synchronous start of the compressor and the condensing fan, and solves the problems of energy waste and overlarge instantaneous current of a loop of the air-conditioning system caused by synchronous work or stop of the compressor and the condensing fan of the existing air-conditioning control circuit.
Description
Technical Field
The invention relates to the technical field of automobile air conditioners, in particular to an air conditioner condenser fan control circuit, an air conditioner condenser fan control device and an automobile.
Background
In the existing automobile air conditioning system, when a power switch, a windshield switch and an AC switch are turned on, a condenser fan and a compressor start to work, a refrigerant (R134a) flows through the refrigerant circulation of an evaporation core in an air box, and a low-temperature liquid refrigerant formed by the action of the compressor, the condenser, a throttle pipe and the like absorbs ambient air heat to realize refrigeration.
The existing air conditioner control circuit is composed of a power supply control circuit, a blower control circuit, an electromagnetic clutch control circuit, a temperature control circuit and the like, wherein the power supply control circuit: the current of the electromagnetic clutch of the blower and the compressor is controlled, and the ignition switch and the air volume switch can be switched on only by switching on the air-conditioning relay. A blower control circuit: the rotating speed of the blower is controlled to control the air quantity, the air-conditioning relay is disconnected, and the blower stops without a power supply. Electromagnetic clutch control circuit: the electromagnetic clutch is controlled to be closed and opened, the compressor is controlled to work and stop rotating, and the compressor can work only when the air conditioner relay and the pressure switch are simultaneously connected.
When a pressure switch is closed or disconnected, a compressor and a condensing fan synchronously work or stop in the conventional air conditioner control circuit, but certain energy waste exists when the condensing fan works for a long time, the compressor and the condensing fan are almost simultaneously started when the pressure switch is closed, the instantaneous current of a loop of an air conditioning system can be more than or equal to 30A (12V), and the circuit can be damaged when the starting current of the air conditioner is large.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a control circuit and a control device for a fan of an air conditioner condenser and an automobile, and aims to solve the technical problems that energy is wasted and instantaneous current of a loop of an air conditioning system is overlarge when a compressor and a condensing fan of the existing air conditioner control circuit work synchronously or stop.
In order to achieve the above object, the present invention provides an air conditioner condenser fan control circuit, including: the control circuit comprises an oscillation circuit, a rectifying circuit and a rotating speed control circuit, wherein the input end of the oscillation circuit is connected with the pressure output end of an air-conditioning refrigeration system, the output end of the oscillation circuit is connected with the input end of the rectifying circuit, the output end of the rectifying circuit is connected with the input end of the rotating speed control circuit, and the output end of the rotating speed control circuit is connected with a condenser fan; wherein,
the oscillating circuit is used for receiving a pressure electric signal output by the air-conditioning refrigeration system and outputting sine alternating current to the rectifying circuit according to the pressure electric signal;
the rectifying circuit is used for receiving the sine alternating current, rectifying the sine alternating current and then outputting direct current to the rotating speed control circuit;
and the rotating speed control circuit is used for receiving the direct current and controlling the rotating speed of the condenser fan according to the direct current.
Optionally, the air-conditioning condenser fan control circuit further comprises a signal amplification circuit, an input end of the signal amplification circuit is connected with a pressure signal output end of an air-conditioning refrigeration system, and an output end of the signal amplification circuit is connected with an input end of the oscillation circuit; wherein,
the signal amplification circuit is used for receiving a pressure electric signal output by the air-conditioning refrigeration system, amplifying the pressure electric signal and outputting the amplified pressure electric signal to the oscillation circuit;
the oscillating circuit is used for receiving the amplified pressure electric signal and outputting sine alternating current to the rectifying circuit according to the amplified pressure electric signal.
Optionally, the signal amplification circuit includes a first triode, a base of the first triode is connected with the pressure signal output end, a collector of the first triode is connected with the input end of the oscillation circuit, and an emitter of the first triode is grounded; wherein,
the first triode is used for receiving a pressure electric signal output by the air-conditioning refrigeration system and amplifying the pressure electric signal so as to output the amplified pressure electric signal to the oscillating circuit.
Optionally, the signal amplification circuit further includes a first resistor and a second resistor; wherein,
the first end of the first resistor is connected with the pressure signal output end, the second end of the first resistor is connected with the base electrode of the first triode, the second end of the first resistor is connected with the first end of the second resistor, and the second end of the second resistor is grounded.
Optionally, the signal amplification circuit further includes a first capacitor, a second capacitor, and a third resistor; wherein,
the first end of the first capacitor is connected with the base electrode of the first triode, the second end of the first capacitor is grounded, the first end of the second capacitor is connected with the emitting electrode of the first triode, the second end of the second capacitor is grounded, the first end of the third resistor is connected with the emitting electrode of the first triode, and the second end of the third resistor is grounded.
Optionally, the oscillator circuit includes a first inductor and a third capacitor; wherein,
the first end of the first inductor is connected with the output end of the signal amplification circuit, the second end of the first inductor is grounded, the third end of the first inductor is connected with the pressure signal output end, the first end of the third capacitor is connected with the output end of the signal amplification circuit, and the second end of the third capacitor is grounded.
Optionally, the rectifying circuit includes a second inductor, a first diode, a second diode, a fourth capacitor, and a fourth resistor; wherein,
the first end of the second inductor is connected with the anode of the first diode, the second end of the second inductor is connected with the anode of the second diode, the cathode of the first diode is connected with the first end of the fourth capacitor, the cathode of the second diode is connected with the cathode of the first diode, the second end of the fourth capacitor is connected with the third end of the second inductor, the first end of the fourth resistor is connected with the first end of the fourth capacitor, the second end of the fourth resistor is connected with the second end of the fourth capacitor, and the first inductor is coupled with the second inductor.
Optionally, the rotation speed control circuit includes a second transistor; wherein,
the base electrode of the second triode is connected with the output end of the rectifying circuit, the collector electrode of the second triode is connected with the condenser fan, and the emitting electrode of the second triode is grounded.
In addition, in order to achieve the above object, the present invention further provides an air conditioner condenser fan control device, which includes the air conditioner condenser fan control circuit as described above.
In addition, in order to achieve the above object, the present invention also provides an automobile comprising the air conditioner condenser fan control device as described above.
The invention provides an air conditioner condenser fan control circuit, which comprises: the control circuit comprises an oscillation circuit, a rectifying circuit and a rotating speed control circuit, wherein the input end of the oscillation circuit is connected with the pressure output end of an air-conditioning refrigeration system, the output end of the oscillation circuit is connected with the input end of the rectifying circuit, the output end of the rectifying circuit is connected with the input end of the rotating speed control circuit, and the output end of the rotating speed control circuit is connected with a condenser fan; the oscillating circuit is used for receiving a pressure electric signal output by an air-conditioning refrigeration system and outputting sinusoidal alternating current to the rectifying circuit according to the pressure electric signal; the rectifying circuit is used for receiving the sine alternating current, rectifying the sine alternating current and then outputting direct current to the rotating speed control circuit; and the rotating speed control circuit is used for receiving the direct current and controlling the rotating speed of the condenser fan according to the direct current. According to the invention, the air conditioner condenser fan control circuit is additionally arranged, the rotating speed of the fan is determined according to the pressure of the air conditioner refrigeration system, the energy-saving purpose of the condensing fan is realized, the energy waste problem of long-time work of the condensing fan is solved, meanwhile, the air conditioner condenser fan is independently controlled, the phenomenon that the instantaneous current is too large due to synchronous start of the compressor and the condensing fan is avoided, and the technical problems that the energy waste exists when the compressor and the condensing fan work synchronously or stop and the instantaneous current of a loop of the air conditioner system is too large in the conventional air conditioner control circuit are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a functional block diagram of a control circuit for a condenser fan of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of an embodiment of a fan control circuit of an air conditioner condenser according to the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a fan control circuit of an air conditioner condenser.
Referring to fig. 1, the air conditioner condenser fan control circuit includes: the control circuit comprises an oscillation circuit 100, a rectification circuit 200 and a rotating speed control circuit 300, wherein the input end of the oscillation circuit 100 is connected with the pressure signal output end of an air-conditioning refrigeration system, the output end of the oscillation circuit 100 is connected with the input end of the rectification circuit 200, the output end of the rectification circuit 200 is connected with the input end of the rotating speed control circuit 300, and the output end of the rotating speed control circuit 300 is connected with a condenser fan; wherein,
the oscillating circuit 100 is configured to receive a pressure electrical signal output by an air-conditioning refrigeration system, and output a sinusoidal alternating current to the rectifying circuit 200 according to the pressure electrical signal. In this embodiment, the oscillating circuit 100 may include an LC oscillating circuit formed by a first inductor and a capacitor, where the LC oscillating circuit receives a pressure electrical signal output by the air-conditioning refrigeration system and outputs a sinusoidal alternating current to the rectifying circuit 200 according to the pressure electrical signal, where the capacitor is a variable capacitor. Specifically, when the pressure value of the air-conditioning refrigeration system rises, according to the pressure electric signal output by the air-conditioning refrigeration system, the relative effective area between the sheets of the variable capacitor is reduced, the capacity of the variable capacitor is reduced, and the frequency of the oscillating circuit 100 is accelerated; when the pressure value of the air-conditioning refrigeration system is reduced, the relative effective area between the sheets of the variable capacitor is increased according to the pressure electric signal output by the air-conditioning refrigeration system, and the oscillation frequency of the oscillation circuit 100 is reduced.
The rectifier circuit 200 is configured to receive the sinusoidal ac power, rectify the sinusoidal ac power, and output a dc power to the rotation speed control circuit 300. In this embodiment, the rectifier circuit 200 may include a second inductor coupled to the first inductor in the oscillator circuit 100, and the rectifier circuit 200 receives a sinusoidal ac power through the second inductor, rectifies the sinusoidal ac power, and outputs a dc power to the rotation speed control circuit 300.
The rotation speed control circuit 300 is configured to receive the direct current and control a rotation speed of the condenser fan according to the direct current. In this embodiment, the rotation speed control circuit 300 may include a transistor, and the rotation speed control circuit 300 receives the direct current and controls the rotation speed of the condenser fan according to the direct current. Specifically, when the pressure value of the air-conditioning refrigeration system rises, according to the pressure electric signal output by the air-conditioning refrigeration system, the relative effective area between the sheets of the variable capacitor is reduced, the capacity of the variable capacitor is reduced, the frequency of the oscillating circuit 100 is increased, the conduction time of the input end of the triode in the rotating speed control circuit 300 is increased, and the rotating speed of the condenser fan is controlled to be increased; when the pressure value of the air-conditioning refrigeration system is reduced, according to the pressure electric signal output by the air-conditioning refrigeration system, the relative effective area between the sheets of the variable capacitor is increased, the oscillation frequency of the oscillation circuit 100 is reduced, the conduction time of the input end of the triode in the rotating speed control circuit 300 is reduced, and the rotating speed of the condenser fan is further controlled to be reduced. The rotating speed of the fan is determined according to the pressure of the air-conditioning refrigeration system, and the energy-saving purpose of the condensing fan is achieved.
This embodiment proposes an air conditioner condenser fan control circuit, air conditioner condenser fan control circuit includes: the control circuit comprises an oscillation circuit 100, a rectification circuit 200 and a rotating speed control circuit 300, wherein the input end of the oscillation circuit 100 is connected with the pressure signal output end of an air-conditioning refrigeration system, the output end of the oscillation circuit 100 is connected with the input end of the rectification circuit 200, the output end of the rectification circuit 200 is connected with the input end of the rotating speed control circuit 300, and the output end of the rotating speed control circuit 300 is connected with a condenser fan; the oscillating circuit 100 is configured to receive a pressure electrical signal output by an air-conditioning refrigeration system, and output a sinusoidal alternating current to the rectifying circuit 200 according to the pressure electrical signal; the rectifier circuit 200 is configured to receive the sinusoidal alternating current, rectify the sinusoidal alternating current, and output a direct current to the rotational speed control circuit 300; the rotation speed control circuit 300 is configured to receive the direct current and control a rotation speed of the condenser fan according to the direct current. In this embodiment, increase an air conditioner condenser fan control circuit, the rotational speed of fan is confirmed according to air conditioner refrigerating system's pressure height, realize the energy-conserving purpose of condensation fan, the energy waste problem of the long-time work of condensation fan has been solved, control air conditioner condenser fan alone simultaneously, it causes the instantaneous current too big to avoid compressor and condensation fan synchronous start, the technical problem that current air conditioner control circuit compressor and condensation fan synchronous working or stop to have energy waste and air conditioning system return circuit instantaneous current too big has been solved.
Further, referring to fig. 2, the air conditioner condenser fan control circuit further includes a signal amplification circuit 400, an input end of the signal amplification circuit 400 is connected to a pressure signal output end VCC of an air conditioning and refrigeration system, and an output end of the signal amplification circuit 400 is connected to an input end of the oscillation circuit 100; wherein,
the signal amplification circuit 400 is configured to receive a pressure electrical signal output by an air-conditioning refrigeration system, and perform signal amplification on the pressure electrical signal to output the amplified pressure electrical signal to the oscillation circuit 100;
the oscillating circuit 100 is configured to receive the amplified pressure electrical signal and output a sinusoidal alternating current to the rectifying circuit 200 according to the amplified pressure electrical signal.
It should be noted that, the air conditioner condenser fan control circuit may further include a signal amplifying circuit 400, where the signal amplifying circuit 400 may include a first triode Q1, a base of the first triode Q1 is connected to the pressure signal output terminal VCC, a collector of the first triode Q1 is connected to the input terminal of the oscillating circuit 100, and an emitter of the first triode Q1 is grounded; the first triode Q1 is configured to receive the pressure electrical signal output by the air-conditioning refrigeration system, and amplify the pressure electrical signal to output the amplified pressure electrical signal to the oscillation circuit 100. And the pressure signal output end VCC of the air-conditioning refrigeration system is also used for supplying power to the air-conditioning condenser fan control circuit.
Further, referring to fig. 2, the signal amplifying circuit 400 includes a first transistor Q1, a base of the first transistor Q1 is connected to the pressure signal output terminal VCC, a collector of the first transistor Q1 is connected to the input terminal of the oscillator circuit 100, and an emitter of the first transistor Q1 is grounded; wherein,
the first triode Q1 is configured to receive a pressure electrical signal output by the air-conditioning refrigeration system, and amplify the pressure electrical signal to output the amplified pressure electrical signal to the oscillation circuit 100.
It should be noted that the signal amplification circuit 400 may include a first transistor Q1, the first transistor Q1 plays a role of signal amplification, but the first transistor Q1 may cause signal distortion when being in a cut-off region, and to avoid this, the signal amplification circuit 400 may further include a voltage division circuit, an input terminal of the voltage division circuit is connected to the pressure signal output terminal, an output terminal of the voltage division circuit is connected to a base of the first transistor, a ground terminal of the voltage division circuit is grounded, and it is ensured that the first transistor Q1 operates in a linear region through the voltage division circuit, so as to avoid signal distortion when the first transistor Q1 is in the cut-off region.
Further, referring to fig. 2, the signal amplifying circuit 400 further includes a first resistor R1 and a second resistor R2; wherein,
the first end of first resistance R1 with pressure signal output VCC connects, the second end of first resistance R1 with the base of first triode Q1 is connected, the second end of first resistance R1 with the first end of second resistance R2 is connected, the second end ground of second resistance R2.
It should be noted that the signal amplification circuit 400 further includes a first resistor R1 and a second resistor R2, wherein the first resistor R1 and the second resistor R2 form a voltage division circuit, and the voltage division circuit ensures that the first transistor Q1 operates in a linear region, so as to avoid signal distortion caused by the first transistor Q1 being in a cut-off region. Specifically, the first resistor R1 may have a value of 150k ohms, and the second resistor R2 may have a value of 30k ohms.
Further, referring to fig. 2, the signal amplifying circuit 400 further includes a first capacitor C1, a second capacitor C2, and a third resistor R3; wherein,
a first end of the first capacitor C1 is connected to the base of the first transistor Q1, a second end of the first capacitor C1 is grounded, a first end of the second capacitor C2 is connected to the emitter of the first transistor Q1, a second end of the second capacitor C2 is grounded, a first end of the third resistor R3 is connected to the emitter of the first transistor Q1, and a second end of the third resistor R3 is grounded.
The signal amplification circuit 400 further includes a first capacitor C1, a second capacitor C2, and a third resistor R3; the third resistor R3 is a load resistor and plays a role in limiting current, the value of the third resistor R3 can be 3.6k ohms, the first triode Q1 plays a role in signal amplification, and the first capacitor C1 and the second capacitor C2 provide an alternating current path for the first triode Q1.
Further, referring to fig. 2, the oscillator circuit 100 includes a first inductor L1 and a third capacitor C3; wherein,
the first end of the first inductor L1 is connected to the output terminal of the signal amplifying circuit 400, the second end of the first inductor L1 is grounded, the third end of the first inductor L1 is connected to the pressure signal output terminal VCC, the first end of the third capacitor C3 is connected to the output terminal of the signal amplifying circuit 400, and the second end of the third capacitor C3 is grounded.
It should be noted that the oscillator circuit 100 may include an LC oscillator circuit formed by the first inductor L1 and the third capacitor C3, where the LC oscillator circuit receives a pressure electrical signal output by the air conditioning and refrigeration system, and outputs a sinusoidal alternating current to the rectifier circuit 200 according to the pressure electrical signal, and the third capacitor C3 is a variable capacitor. Specifically, when the pressure value of the air-conditioning refrigeration system rises, according to the pressure electric signal output by the air-conditioning refrigeration system, the inter-sheet relative effective area of the third capacitor C3 decreases, the capacity of the third capacitor C3 decreases, and the frequency of the oscillating circuit 100 increases; when the pressure value of the air-conditioning refrigeration system is reduced, according to the pressure electric signal output by the air-conditioning refrigeration system, the inter-chip relative effective area of the third capacitor C3 is increased, and the oscillation frequency of the oscillation circuit 100 is reduced.
Further, referring to fig. 2, the rectifier circuit 200 includes a second inductor L2, a first diode D1, a second diode D2, a fourth capacitor C4, and a fourth resistor R4; wherein,
a first end of the second inductor L2 is connected to an anode of the first diode D1, a second end of the second inductor L2 is connected to an anode of the second diode D2, a cathode of the first diode D1 is connected to a first end of the fourth capacitor C4, a cathode of the second diode D2 is connected to a cathode of the first diode D1, a second end of the fourth capacitor C4 is connected to a third end of the second inductor L2, a first end of the fourth resistor R4 is connected to a first end of the fourth capacitor C4, a second end of the fourth resistor R4 is connected to a second end of the fourth capacitor C4, and the first inductor L1 is coupled to the second inductor L2.
It should be noted that the rectifier circuit 200 may include a second inductor L2, the second inductor L2 is coupled to the first inductor L1 in the oscillator circuit 100, and the rectifier circuit 200 receives a sinusoidal alternating current through the second inductor L2, rectifies the sinusoidal alternating current, and outputs a direct current to the rotation speed control circuit 300. The rectifier circuit 200 may further include a first diode D1, a second diode D2, a fourth capacitor C4, and a fourth resistor R4; the second inductor L2, the first diode D1, the second diode D2, the fourth capacitor C4, and the fourth resistor R4 form the rectifying circuit 200, and the fourth capacitor C4 is a tantalum capacitor. When the upper end of the second inductor L2 is positive, current passes through the first diode D1, and when the lower end of the second inductor L2 is positive, current passes through the second diode D2, the tantalum capacitor, i.e., the fourth capacitor C4, plays a role of storing electricity, and ensures that the upper end of the fourth resistor R4 is positive, and the lower end of the fourth resistor R4 is negative, and the direct current is output to the rotation speed control circuit 300 through the rectifier circuit 200, wherein the fourth resistor R4 is a load resistor and plays a role of shunting, and the value of the fourth resistor R4 may be 5.6 kohm.
Further, referring to fig. 2, the rotation speed control circuit 300 includes a second transistor Q2; wherein,
the base electrode of the second triode Q2 is connected with the output end of the rectifying circuit 200, the collector electrode of the second triode Q2 is connected with the condenser fan, and the emitter electrode of the second triode Q2 is grounded.
It should be noted that the rotation speed control circuit 300 may include a second transistor Q2, and the rotation speed control circuit 300 receives the direct current and controls the rotation speed of the condenser fan according to the direct current. Specifically, when the pressure value of the air-conditioning refrigeration system rises, according to the pressure electric signal output by the air-conditioning refrigeration system, the relative effective area between the sheets of the variable capacitor is reduced, the capacity of the third capacitor C3 is reduced, the frequency of the oscillating circuit 100 is increased, the conduction time of the input end of the second triode Q2 in the rotating speed control circuit 300 is increased, and the rotating speed of the condenser fan is controlled to be increased; when the pressure value of the air-conditioning refrigeration system is reduced, according to the pressure electric signal output by the air-conditioning refrigeration system, the relative effective area between the third capacitor C3 is increased, the oscillation frequency of the oscillation circuit 100 is reduced, the conduction time of the input end of the second triode Q2 in the rotating speed control circuit 300 is reduced, and the rotating speed of the condenser fan is further controlled to be reduced. The rotating speed of the fan is determined according to the pressure of the air-conditioning refrigeration system, and the energy-saving purpose of the condensing fan is achieved.
In order to achieve the above object, the present invention further provides an air conditioner condenser fan control device, which includes the air conditioner condenser fan control circuit as described above. The specific structure of the air conditioner condenser fan control circuit refers to the above embodiments, and since the device adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
In order to achieve the above object, the present invention also provides an automobile including the air conditioner condenser fan control device as described above. The specific structure of the air conditioner condenser fan control device refers to the above embodiments, and since the automobile adopts all the technical solutions of all the above embodiments, all the beneficial effects brought by the technical solutions of the above embodiments are at least achieved, and are not repeated herein.
It should be understood that the above is only an example, and the technical solution of the present invention is not limited in any way, and in a specific application, a person skilled in the art may set the technical solution as needed, and the present invention is not limited thereto.
It should be noted that the above-described work flows are only exemplary, and do not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to actual needs, and the present invention is not limited herein.
In addition, the technical details that are not described in detail in this embodiment can be referred to the air conditioner condenser fan control circuit provided in any embodiment of the present invention, and are not described herein again.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g. Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g. a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. An air conditioning condenser fan control circuit, characterized in that the air conditioning condenser fan control circuit comprises: the control circuit comprises an oscillation circuit, a rectifying circuit and a rotating speed control circuit, wherein the input end of the oscillation circuit is connected with the pressure output end of an air-conditioning refrigeration system, the output end of the oscillation circuit is connected with the input end of the rectifying circuit, the output end of the rectifying circuit is connected with the input end of the rotating speed control circuit, and the output end of the rotating speed control circuit is connected with a condenser fan; wherein,
the oscillating circuit is used for receiving the pressure electric signal output by the air-conditioning refrigeration system and outputting sine alternating current to the rectifying circuit according to the pressure electric signal;
the rectifying circuit is used for receiving the sine alternating current, rectifying the sine alternating current and then outputting direct current to the rotating speed control circuit;
the rotating speed control circuit is used for receiving the direct current and controlling the rotating speed of the condenser fan according to the direct current;
the fan control circuit of the air-conditioning condenser further comprises a signal amplification circuit, the input end of the signal amplification circuit is connected with the pressure signal output end of the air-conditioning refrigeration system, and the output end of the signal amplification circuit is connected with the input end of the oscillation circuit; wherein,
the signal amplification circuit is used for receiving a pressure electric signal output by the air-conditioning refrigeration system, amplifying the pressure electric signal and outputting the amplified pressure electric signal to the oscillation circuit;
the oscillating circuit is used for receiving the amplified pressure electric signal and outputting sinusoidal alternating current to the rectifying circuit according to the amplified pressure electric signal;
the signal amplification circuit comprises a first triode, the base electrode of the first triode is connected with the pressure signal output end, the collector electrode of the first triode is connected with the input end of the oscillating circuit, and the emitting electrode of the first triode is grounded; wherein,
the first triode is used for receiving a pressure electric signal output by the air-conditioning refrigeration system, amplifying the pressure electric signal and outputting the amplified pressure electric signal to the oscillating circuit;
the signal amplification circuit further comprises a first resistor and a second resistor; wherein,
the first end of the first resistor is connected with the pressure signal output end, the second end of the first resistor is connected with the base electrode of the first triode, the second end of the first resistor is connected with the first end of the second resistor, and the second end of the second resistor is grounded;
the signal amplification circuit further comprises a first capacitor, a second capacitor and a third resistor; wherein,
the first end of the first capacitor is connected with the base electrode of the first triode, the second end of the first capacitor is grounded, the first end of the second capacitor is connected with the emitting electrode of the first triode, the second end of the second capacitor is grounded, the first end of the third resistor is connected with the emitting electrode of the first triode, and the second end of the third resistor is grounded.
2. The air conditioner condenser fan control circuit of claim 1, wherein the oscillator circuit comprises a first inductor and a third capacitor; wherein,
the first end of the first inductor is connected with the output end of the signal amplification circuit, the second end of the first inductor is grounded, the third end of the first inductor is connected with the pressure signal output end, the first end of the third capacitor is connected with the output end of the signal amplification circuit, and the second end of the third capacitor is grounded.
3. An air conditioner condenser fan control circuit as claimed in claim 1 wherein said rectifying circuit includes a second inductor, a first diode, a second diode, a fourth capacitor and a fourth resistor; wherein,
the first end of the second inductor is connected with the anode of the first diode, the second end of the second inductor is connected with the anode of the second diode, the cathode of the first diode is connected with the first end of the fourth capacitor, the cathode of the second diode is connected with the cathode of the first diode, the second end of the fourth capacitor is connected with the third end of the second inductor, the first end of the fourth resistor is connected with the first end of the fourth capacitor, the second end of the fourth resistor is connected with the second end of the fourth capacitor, and the first inductor is coupled with the second inductor.
4. An air conditioner condenser fan control circuit as set forth in claim 1 wherein said speed control circuit includes a second transistor; wherein,
the base electrode of the second triode is connected with the output end of the rectifying circuit, the collector electrode of the second triode is connected with the condenser fan, and the emitting electrode of the second triode is grounded.
5. An air conditioning condenser fan control apparatus, characterized in that the air conditioning condenser fan control apparatus comprises an air conditioning condenser fan control circuit as claimed in any one of claims 1 to 4.
6. An automobile comprising the air conditioner condenser fan control apparatus of claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010671979.0A CN111775657B (en) | 2020-07-13 | 2020-07-13 | Air conditioner condenser fan control circuit, device and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010671979.0A CN111775657B (en) | 2020-07-13 | 2020-07-13 | Air conditioner condenser fan control circuit, device and car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111775657A CN111775657A (en) | 2020-10-16 |
| CN111775657B true CN111775657B (en) | 2021-09-28 |
Family
ID=72767669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010671979.0A Active CN111775657B (en) | 2020-07-13 | 2020-07-13 | Air conditioner condenser fan control circuit, device and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111775657B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594884B (en) * | 2020-12-10 | 2022-02-18 | 珠海格力电器股份有限公司 | Air conditioning unit and condenser fan control method and device thereof and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012177720A1 (en) * | 2011-06-22 | 2012-12-27 | Carrier Corporation | Condenser fan speed control for air conditioning system efficiency optimization |
| CN202673729U (en) * | 2012-03-09 | 2013-01-16 | 成都思茂科技有限公司 | Simple natural wind simulating device for electric fans |
| CN110030777A (en) * | 2019-03-14 | 2019-07-19 | 刘明生 | A kind of control method for realizing best condensing pressure |
| CN210715224U (en) * | 2019-10-28 | 2020-06-09 | Tcl空调器(中山)有限公司 | Fan control circuit and air conditioner |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466304B (en) * | 2010-11-16 | 2014-09-03 | 力博特公司 | Air-conditioning system and control method of condensation fan thereof |
| CN202971263U (en) * | 2012-12-21 | 2013-06-05 | 海信（北京）电器有限公司 | Refrigerator and condensate fan speed control system thereof |
| JPWO2015104815A1 (en) * | 2014-01-09 | 2017-03-23 | 三菱電機株式会社 | Air conditioning and hot water supply complex system |
-
2020
- 2020-07-13 CN CN202010671979.0A patent/CN111775657B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012177720A1 (en) * | 2011-06-22 | 2012-12-27 | Carrier Corporation | Condenser fan speed control for air conditioning system efficiency optimization |
| CN202673729U (en) * | 2012-03-09 | 2013-01-16 | 成都思茂科技有限公司 | Simple natural wind simulating device for electric fans |
| CN110030777A (en) * | 2019-03-14 | 2019-07-19 | 刘明生 | A kind of control method for realizing best condensing pressure |
| CN210715224U (en) * | 2019-10-28 | 2020-06-09 | Tcl空调器(中山)有限公司 | Fan control circuit and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111775657A (en) | 2020-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7646165B2 (en) | Converter circuit and motor driving apparatus | |
| CN100359794C (en) | Motor controller | |
| KR100258383B1 (en) | Air conditioner | |
| CN111775657B (en) | Air conditioner condenser fan control circuit, device and car | |
| EP1750362B1 (en) | DC power supply device for an air conditioner | |
| CN107883487B (en) | Heat pump air conditioning system, heat pump air conditioner, control method thereof, and storage medium | |
| CN103199496A (en) | Motor speed regulating voltage Vsp cut-off circuit of air conditioning system of brushless motor | |
| CN103197699A (en) | Brushless DC (direct current) motor air conditioning system control circuit | |
| KR20140097776A (en) | Inverter type air conditioner system for vehicle | |
| JP5125695B2 (en) | Air conditioning system | |
| CN203151077U (en) | Motor speed adjusting voltage Vsp shutdown circuit of brushless motor air-conditioning system | |
| CN113124501B (en) | Air conditioner outdoor unit and air conditioner | |
| WO2012131709A1 (en) | Adaptive speed control of compressor motor | |
| JPH11325553A (en) | Air conditioner | |
| CN203149419U (en) | Air conditioning system control circuit of DC brushless motor | |
| CN203163173U (en) | Indoor motor control circuit for brushless motor air-conditioning system | |
| CN113154619A (en) | Dehumidification system of air conditioner, control method, computer device and storage medium | |
| CN107086820B (en) | Starting control circuit of single-phase alternating current motor, compressor system and refrigeration equipment | |
| CN112009403B (en) | Compressor driving circuit, control method and vehicle-mounted air conditioning system | |
| CN213402821U (en) | Switching power supply voltage stabilizer circuit and air conditioner | |
| CN215216859U (en) | Energy-saving freezer control circuit | |
| CN213395621U (en) | Anion generator control circuit and air conditioner | |
| CN112306134B (en) | Air conditioner substrate power supply protection circuit and air conditioner | |
| JP2013194969A (en) | Air conditioner | |
| CN213542795U (en) | Indoor unit standby power consumption control circuit and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |