CN113043810B - Vehicle-mounted air conditioner controller and automobile provided with same - Google Patents
Vehicle-mounted air conditioner controller and automobile provided with same Download PDFInfo
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- CN113043810B CN113043810B CN202110473928.1A CN202110473928A CN113043810B CN 113043810 B CN113043810 B CN 113043810B CN 202110473928 A CN202110473928 A CN 202110473928A CN 113043810 B CN113043810 B CN 113043810B
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- 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
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- 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
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Abstract
The application relates to a vehicle-mounted air conditioner controller and an automobile provided with the same, relating to the technical field of automobile air conditioning system controllers; a collector C of the transistor Q is connected with a positive power supply Vcc and an output port, and the output port is configured to correspondingly output a high-level signal or a low-level signal when the air conditioner controller is in a working state; if the output effective signal is a low-level signal, the diode D is connected between the collector C of the transistor Q and the forward power supply Vcc in series; if the output effective signal is a high level signal, the diode D is connected in series between the collector C of the transistor Q and the output port. When the air conditioner controller is in a working state, the instantaneous impact voltage which is reversely poured from the output port from the outside is simply and effectively prevented from damaging components inside the air conditioner controller, and the service life of the air conditioner controller is prolonged.
Description
Technical Field
The application relates to the technical field of automobile air conditioning system controllers, in particular to a vehicle-mounted air conditioning controller and an automobile with the same.
Background
With the high development of economy, road traffic is more and more complicated, vehicles running on roads are gradually increased, people using automobiles are continuously enriched, and how to make user experience better is also a concern of research and development personnel in the automobile industry. In hot summer or cold winter, the vehicle-mounted air conditioner is often needed, when the vehicle is influenced by electromagnetic interference at the moment of starting the air conditioner, the vehicle controller may give an instantaneous reverse impulse voltage to the vehicle-mounted air conditioner controller, so that electronic components in the air conditioner controller are easily damaged, the air conditioner controller fails, a user cannot normally experience an air conditioning mode or a warm air mode of the air conditioner controller, and user experience is reduced.
In the related art, a protection circuit of an air conditioner controller and a control method thereof are provided. Wherein, a protection circuit of air conditioner controller includes: the device comprises a thermistor, a relay, a rectifying module, a voltage sampling module and an MCU; the first input end of the rectifying module is connected with a live wire end of commercial power, the second input end of the rectifying module is connected with a zero wire end of the commercial power, and the anode of the output end of the rectifying module is connected to the MCU through the voltage sampling module; the thermistor is connected in series between the first input end of the rectifier module and the live wire end of the mains supply; the relay is connected in parallel with two ends of the thermistor; the MCU is used for detecting the direct current bus voltage of the positive pole of the output end of the rectifier module and controlling the on-off of the relay according to the direct current bus voltage. Through the protection circuit, when the power supply is over-voltage or under-voltage, the relay is timely disconnected, and the current or voltage mutation is prevented by utilizing the characteristic that the heating internal resistance of the thermistor is increased, so that the purpose of protecting the rear-stage load is achieved, the service life of the air conditioner is prolonged, and the reliability of electric control is improved.
However, the protection circuit of the air conditioner controller is connected to a three-phase alternating current mains supply, the composition and control strategy is complex and tedious, and the air conditioner controller is not suitable for a vehicle-mounted air conditioner controller with limited space, so that a vehicle-mounted air conditioner controller with a simple structure is developed.
Disclosure of Invention
The embodiment of the application provides a vehicular air conditioner controller and an automobile provided with the same to solve the problem of complex structure in a protection circuit of the air conditioner controller in the related art.
In a first aspect, a vehicle-mounted air conditioner controller is provided, the air conditioner controller comprising at least one line, the line comprising a transistor Q, a diode D and an output port;
a collector C of the transistor Q is connected with a positive power supply Vcc and the output port, and the output port is configured to correspondingly output a high-level signal or a low-level signal when the air conditioner controller is in a working state;
if the output effective signal is a low-level signal, the diode D is connected in series between the collector C of the transistor Q and the forward power supply Vcc;
if the output effective signal is a high-level signal, the diode D is connected in series between the collector C of the transistor Q and the output port.
According to the vehicle-mounted air conditioner controller provided by the embodiment of the application, the diode D is arranged according to the height of the effective level, wherein when the output effective signal is a low-level signal, the diode D plays a role in limiting the instantaneous impulse voltage of the output port, so that the instantaneous impulse voltage is prevented from puncturing the transistor Q, and the normal operation of the working state of the air conditioner controller is guaranteed; when the output effective signal is a high-level signal, the diode D cuts off the instantaneous impact voltage reversely flowing from the outside, so that the instantaneous impact voltage is prevented from puncturing the transistor Q, and the normal operation of the air conditioner controller is further ensured.
In some embodiments, the anode of the diode D is connected to the collector C of the transistor Q,
if the output effective signal is a high level signal, the cathode of the diode D is connected with the output port,
and if the output effective signal is a low-level signal, the cathode of the diode D is connected with the positive power supply Vcc.
In some embodiments, the emitter E of the transistor Q is grounded,
if the output effective signal is a low level signal, the base B of the transistor Q receives a driving signal and is grounded through a resistor R1,
if the output effective signal is a high level signal, the base B of the transistor Q receives a driving signal through a resistor R1.
In some embodiments, the collector C of the transistor Q is connected to the positive power supply Vcc through a resistor R2.
In some embodiments, the transistor Q comprises an N-type fet if the output valid signal is a low signal. Under the condition that the low level is effective, the field effect transistor with the N channel is adopted to replace the PNP type triode, and compared with the PNP type triode, the PNP type triode has the advantages of small conduction resistance and small voltage drop.
In some embodiments, the gate G of the fet receives a driving signal and is grounded through a resistor R1, the source S is grounded, the drain D is connected to the output port and is connected to the forward power VCC through a resistor R2, and two ends of the resistor R2 are connected in parallel with the diode D in an inverse direction. When the air conditioner controller is in a working state, the output port is configured to output a low level signal, and after the instantaneous impulse voltage enters from the output port, the diode D plays a role in limiting the amplitude of the instantaneous impulse voltage, so that the instantaneous impulse voltage is prevented from puncturing a field effect transistor, and the safety of internal components of the air conditioner controller is protected.
In some embodiments, the transistor Q comprises an NPN transistor if the output active signal is a high signal. When the air conditioner controller is in a working state, the output port is configured to output a high level signal, and after the instantaneous surge voltage enters from the output port, the diode D arranged in the reverse direction cuts off the instantaneous surge voltage, so that the instantaneous surge voltage is prevented from breaking down the transistor Q.
In some embodiments, the number of the lines is at least two, and each of the lines receives one driving signal. In practical application, the mode of vehicle air conditioner is also not single, and when there are multiple operating mode, the drive signal all the way is all needed in opening of each mode, and that matches with drive signal sets up a plurality of the different modes just also can the independent control of circuit have just, under the prerequisite of guaranteeing circuit safety, also can improve user experience.
In some embodiments, when the air conditioner controller has a warm air mode and an air conditioning mode, the number of the lines is two, one of the lines receives a warm air driving signal, and the other of the lines receives an air conditioning driving signal. In the embodiment of the present application, the air conditioner controller has two operation modes, such as a warm air mode and an air conditioning mode, and then two lines are matched, one line is used in the warm air mode, and the other line is used in the air conditioning mode.
In a second aspect, an automobile provided with the vehicle-mounted air conditioner controller is further provided.
The beneficial effect that technical scheme that this application provided brought includes: when the air conditioner controller is in a working state, the damage to components inside the air conditioner controller caused by instantaneous impact voltage reversely poured from an output port from the outside is simply and effectively avoided, and the service life of the air conditioner controller is prolonged.
The embodiment of the application provides a vehicle-mounted air conditioner controller, which comprises at least one circuit, wherein the circuit comprises a transistor Q, a diode D and an output port; a collector C of the transistor Q is connected with a positive power supply Vcc and the output port, and the output port is configured to correspondingly output a high-level signal or a low-level signal when the air conditioner controller is in a working state; if the output effective signal is a low-level signal, the diode D is connected in series between the collector C of the transistor Q and the positive power supply Vcc, the air-conditioning controller is in a working state when outputting the low-level signal, and the diode D plays a role in limiting the instantaneous impulse voltage of an output port, so that the instantaneous impulse voltage is prevented from breaking down the transistor Q, and the normal working state of the air-conditioning controller is ensured; if the output effective signal is a high-level signal, the diode D is connected between the collector C of the transistor Q and the output port in series, then the air conditioner controller is in a working state when outputting the high-level signal, and the external reverse-flowing instantaneous impulse voltage is intercepted under the stopping action of the diode D, so that the instantaneous impulse voltage is prevented from puncturing the transistor Q, and the normal working state of the air conditioner controller is ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a circuit block diagram of an in-vehicle air conditioner controller when an output valid signal is a high level signal;
fig. 2 is a circuit block diagram of the vehicle-mounted air conditioner controller when the output valid signal is a low level signal.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
The embodiment of the application provides a vehicular air conditioner controller, and when air conditioner controller was in operating condition, the inside components and parts of air conditioner controller were destroyed to the instantaneous impulse voltage who avoids external follow output port to flow backward effectively in this application embodiment, improved air conditioner controller's life.
As shown in fig. 1 or 2, there is provided a vehicle-mounted air conditioner controller, including at least one line including a transistor Q, a diode D, and an output port;
a collector C of the transistor Q is connected with a positive power supply Vcc and the output port, and the output port is configured to correspondingly output a high-level signal or a low-level signal when the air conditioner controller is in a working state;
if the output effective signal is a low-level signal, the diode D is connected in series between the collector C of the transistor Q and the forward power supply Vcc;
if the output effective signal is a high-level signal, the diode D is connected in series between the collector C of the transistor Q and the output port.
According to the vehicle-mounted air conditioner controller provided by the embodiment of the application, the diode D is arranged according to the height of the effective level, wherein when the output effective signal is a low-level signal, the diode D plays a role in limiting the instantaneous impulse voltage of the output port, so that the instantaneous impulse voltage is prevented from puncturing the transistor Q, and the normal operation of the working state of the air conditioner controller is guaranteed; when the output effective signal is a high-level signal, the diode D cuts off the instantaneous impact voltage reversely flowing from the outside, so that the instantaneous impact voltage is prevented from puncturing the transistor Q, and the normal operation of the air conditioner controller is further ensured.
Further, the anode of the diode D is connected to the collector C of the transistor Q,
if the output effective signal is a high level signal, the cathode of the diode D is connected with the output port,
and if the output effective signal is a low-level signal, the cathode of the diode D is connected with the positive power supply Vcc.
The embodiment of the application provides a vehicle-mounted air conditioner controller, which includes an operating mode, such as an air conditioning mode, and in this operating mode, the air conditioner controller sends an air conditioner driving signal to a base B of a transistor Q, and if an output effective level is a low level signal after the air conditioner driving signal passes through the transistor Q, an anode of a diode D is connected with a collector C of the transistor Q, and a cathode is connected with a forward power supply Vcc, as shown in fig. 2. The air conditioner controller is in a working state when outputting a low level signal, and the diode D plays a role in limiting the instantaneous impulse voltage of the output port, so that the instantaneous impulse voltage is prevented from puncturing the transistor Q, and the normal working state of the air conditioner controller is ensured. When the air conditioner controller has no driving signal, a high level signal is output.
If the output effective level is a high level signal after the air conditioner driving signal passes through the transistor Q, the anode of the diode D is connected to the collector C of the transistor Q, and the cathode is connected to the output port, as shown in fig. 1. When the air conditioner controller outputs a high-level signal, the air conditioner controller is in a working state, and the instantaneous surge voltage of external reverse irrigation is intercepted under the stopping action of the diode D, so that the instantaneous surge voltage is prevented from puncturing the transistor Q, and the normal working state of the air conditioner controller is ensured. When the air conditioner controller has no driving signal, a low level signal is output.
Further, the emitter E of the transistor Q is grounded,
if the output effective signal is a low level signal, the base B of the transistor Q receives a driving signal and is grounded through a resistor R1,
if the output effective signal is a high level signal, the base B of the transistor Q receives a driving signal through a resistor R1.
Further, the collector C of the transistor Q is connected to the forward power Vcc through a resistor R2.
Further, if the output valid signal is a low level signal, the transistor Q includes a PNP type triode.
Further, if the output valid signal is a low level signal, the transistor Q includes an N-type fet. Under the condition that the low level is effective, the field effect transistor with the N channel is adopted to replace the PNP type triode, and compared with the PNP type triode, the PNP type triode has the advantages of small conduction resistance and small voltage drop.
Further, the gate G of the fet receives a driving signal and is grounded through a resistor R1, the source S is grounded, the drain D is connected to the output port and is connected to the forward power VCC through a resistor R2, and the two ends of the resistor R2 are connected in parallel to the diode D in the reverse direction.
Specifically, if the output valid signal is a high level signal, the transistor Q includes an NPN transistor.
For a better understanding of the present application, the following description is set forth in detail in connection with the case where the active signal is a high-level signal or a low-level signal.
As shown in fig. 1, the transistor Q is an NPN type triode, the output valid signal is a high level signal, the emitter of the transistor Q is grounded, the base B is connected to a driving signal through a resistor R1 to receive the driving signal, the collector C is connected to a forward power Vcc through another resistor R2, the voltage value of the forward power Vcc is 24V, the collector C is further connected to the anode of the diode D, the cathode of the diode D is connected to an output port, the output port is configured to output a high level signal according to the received driving signal, wherein when there is no driving signal, a low level signal is output according to the connection form of the transistor Q and the diode D, and the air conditioner controller is in a standby state without operation.
When the air conditioner controller is in a working state, the output port is configured to output a high level signal, and after the instantaneous surge voltage enters from the output port, the diode D arranged in the reverse direction cuts off the instantaneous surge voltage, so that the instantaneous surge voltage is prevented from breaking down the transistor Q.
As shown in fig. 2, the transistor Q is an N-type fet, the output valid signal is a low level signal, the source S of the fet is grounded, the gate G receives a driving signal and is grounded through a resistor R1, the drain D is connected to a forward power Vcc through another resistor R2, the voltage value of the forward power Vcc is 24V, the drain D is connected to the anode of the diode D, the cathode of the diode D is connected to the forward power Vcc, the drain D is further connected to the output port, and is configured to output a low level signal according to the received driving signal, wherein when there is no driving signal, a high level signal is output according to the connection form of the fet and the diode D, and the air conditioner controller is in a standby state without operation.
When the air conditioner controller is in a working state, the output port is configured to output a low-level signal, and after the instantaneous impulse voltage enters from the output port, the diode D plays a role in limiting the instantaneous impulse voltage, so that the instantaneous impulse voltage is prevented from puncturing the field effect transistor, and the safety of internal components of the air conditioner controller is protected.
Furthermore, the number of the lines is at least two, and each line receives one driving signal.
In practical application, the mode of vehicle air conditioner is also not single, and when there are multiple operating mode, the drive signal all the way is all needed in opening of each mode, and that matches with drive signal sets up a plurality of the different modes just also can the independent control of circuit have just, under the prerequisite of guaranteeing circuit safety, also can improve user experience.
Specifically, when the air conditioner controller has a warm air mode and an air conditioning mode, the number of the lines is two, one line receives a warm air driving signal, and the other line receives an air conditioning driving signal.
In the embodiment of the present application, the air conditioner controller has two operation modes, such as a warm air mode and an air conditioning mode, and then two lines are matched, one line is used in the warm air mode, the other line is used in the air conditioning mode, and the two lines receive different driving signals and both output high and low level signals.
Further, the air conditioner controller with the warm air mode and the air conditioning mode has one of the two lines being active at a high level and the other being active at a low level, so as to avoid simultaneous operation of the warm air mode and the air conditioning mode.
In one embodiment, the air conditioner controller comprises two lines, wherein one line receives the warm air driving signal and outputs a high-level active level signal, and the other line receives the air conditioner driving signal and outputs a low-level active level signal.
Therefore, in the embodiment of the application, when the air conditioner controller is in a working state, the damage to components inside the air conditioner controller caused by instantaneous impact voltage reversely poured from the output port from the outside can be simply and effectively avoided, and the service life of the air conditioner controller is prolonged.
The embodiment of the application also provides an automobile provided with the vehicle-mounted air conditioner controller, and the automobile comprises the air conditioner controller and a vehicle control unit connected with the air conditioner controller, wherein the air conditioner controller outputs a driving signal to enable the vehicle control unit to execute corresponding actions.
The air conditioner controller comprises at least one circuit, wherein the circuit comprises a transistor Q, a diode D and an output port;
a collector C of the transistor Q is connected with a positive power supply Vcc and the output port, and the output port is configured to correspondingly output a high-level signal or a low-level signal when the air conditioner controller is in a working state;
if the output effective signal is a low-level signal, the diode D is connected in series between the collector C of the transistor Q and the forward power supply Vcc;
if the output effective signal is a high-level signal, the diode D is connected in series between the collector C of the transistor Q and the output port.
According to the automobile provided with the vehicle-mounted air conditioner controller, the air conditioner controller is provided with the diodes D according to the height of the effective level, when the output effective signal is the low level signal, the diodes D play a role in limiting the instantaneous impact voltage of the output port, so that the instantaneous impact voltage is prevented from puncturing the transistor Q, and the normal operation of the working state of the air conditioner controller is guaranteed; when the output effective signal is a high-level signal, the diode D cuts off the instantaneous impact voltage reversely flowing from the outside, so that the instantaneous impact voltage is prevented from puncturing the transistor Q, and the normal operation of the air conditioner controller is further ensured.
Further, the anode of the diode D is connected to the collector C of the transistor Q,
if the output effective signal is a low level signal, the cathode of the diode D is connected with the output port,
and if the output effective signal is a high-level signal, the cathode of the diode D is connected with the positive power supply Vcc.
The embodiment of the application provides an automobile provided with a vehicle-mounted air conditioner controller, wherein the air conditioner controller comprises an operating mode, such as an air conditioning mode, in the operating mode, the air conditioner controller sends an air conditioner driving signal to a base electrode B of a transistor Q, if an output effective level of the air conditioner driving signal is a low level signal after passing through the transistor Q, an anode of a diode D is connected with a collector electrode C of the transistor Q, and a cathode of the diode D is connected with a forward power supply Vcc, as shown in FIG. 2. The air conditioner controller is in a working state when outputting a low level signal, and the diode D plays a role in limiting the instantaneous impulse voltage of the output port, so that the instantaneous impulse voltage is prevented from puncturing the transistor Q, and the normal working state of the air conditioner controller is ensured. When the air conditioner controller has no driving signal, a high level signal is output.
If the output effective level is a high level signal after the air conditioner driving signal passes through the transistor Q, the anode of the diode D is connected to the collector C of the transistor Q, and the cathode is connected to the output port, as shown in fig. 1. When the air conditioner controller outputs a high-level signal, the air conditioner controller is in a working state, and the instantaneous surge voltage of external reverse irrigation is intercepted under the stopping action of the diode D, so that the instantaneous surge voltage is prevented from puncturing the transistor Q, and the normal working state of the air conditioner controller is ensured. When the air conditioner controller has no driving signal, a low level signal is output.
Further, the emitter E of the transistor Q is grounded,
if the output effective signal is a low level signal, the base B of the transistor Q receives a driving signal and is grounded through a resistor R1,
if the output effective signal is a high level signal, the base B of the transistor Q receives a driving signal through a resistor R1.
Further, the collector C of the transistor Q is connected to the forward power Vcc through a resistor R2.
Further, if the output valid signal is a low level signal, the transistor Q includes a PNP type triode.
Further, if the output valid signal is a low level signal, the transistor Q includes an N-type fet. Under the condition that the low level is effective, the field effect transistor with the N channel is adopted to replace the PNP type triode, and compared with the PNP type triode, the PNP type triode has the advantages of small conduction resistance and small voltage drop.
Further, the gate G of the fet receives a driving signal and is grounded through a resistor R1, the source S is grounded, the drain D is connected to the output port and is connected to the forward power VCC through a resistor R2, and the two ends of the resistor R2 are connected in parallel to the diode D in the reverse direction.
Specifically, if the output valid signal is a high level signal, the transistor Q includes an NPN transistor.
For a better understanding of the present application, the following description is set forth in detail in connection with the case where the active signal is a high-level signal or a low-level signal.
As shown in fig. 1, the transistor Q is an NPN type triode, the output valid signal is a high level signal, the emitter of the transistor Q is grounded, the base B is connected to a driving signal through a resistor R1 to receive the driving signal, the collector C is connected to a forward power Vcc through another resistor R2, the voltage value of the forward power Vcc is 24V, the collector C is further connected to the anode of the diode D, the cathode of the diode D is connected to an output port, the output port is configured to output a high level signal according to the received driving signal, wherein when there is no driving signal, a low level signal is output according to the connection form of the transistor Q and the diode D, and the air conditioner controller is in a standby state without operation.
When the air conditioner controller is in a working state, the output port is configured to output a high level signal, and after the instantaneous surge voltage enters from the output port, the diode D arranged in the reverse direction cuts off the instantaneous surge voltage, so that the instantaneous surge voltage is prevented from breaking down the transistor Q.
As shown in fig. 2, the transistor Q is an N-type fet, the output valid signal is a low level signal, the source S of the fet is grounded, the gate G receives a driving signal and is grounded through a resistor R1, the drain D is connected to a forward power Vcc through another resistor R2, the voltage value of the forward power Vcc is 24V, the drain D is connected to the anode of the diode D, the cathode of the diode D is connected to the forward power Vcc, the drain D is further connected to the output port, and is configured to output a low level signal according to the received driving signal, wherein when there is no driving signal, a high level signal is output according to the connection form of the fet and the diode D, and the air conditioner controller is in a standby state without operation.
When the air conditioner controller is in a working state, the output port is configured to output a low level signal, and after the instantaneous impulse voltage enters from the output port, the diode D plays a role in amplitude limiting on the instantaneous impulse voltage, so that the instantaneous impulse voltage is prevented from puncturing the transistor Q, and the safety of internal components of the air conditioner controller is protected.
Furthermore, the number of the lines is at least two, and each line receives one driving signal.
In practical application, the mode of vehicle air conditioner is also not single, and when there are multiple operating mode, the drive signal all the way is all needed in opening of each mode, and that matches with drive signal sets up a plurality of the different modes just also can the independent control of circuit have just, under the prerequisite of guaranteeing circuit safety, also can improve user experience.
Specifically, when the air conditioner controller has a warm air mode and an air conditioning mode, the number of the lines is two, one line receives a warm air driving signal, and the other line receives an air conditioning driving signal.
In the embodiment of the present application, the air conditioner controller has two operation modes, such as a warm air mode and an air conditioning mode, and then two lines are matched, one line is used in the warm air mode, the other line is used in the air conditioning mode, and the two lines receive different driving signals and both output high and low level signals.
Further, the air conditioner controller with the warm air mode and the air conditioning mode has one of the two lines being active at a high level and the other being active at a low level, so as to avoid simultaneous operation of the warm air mode and the air conditioning mode.
In one embodiment, the air conditioner controller comprises two lines, wherein one line receives the warm air driving signal and outputs a high-level active level signal, and the other line receives the air conditioner driving signal and outputs a low-level active level signal.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The vehicle-mounted air conditioner controller is characterized by comprising at least one circuit, wherein the circuit comprises a transistor Q, a diode D and an output port;
a collector C of the transistor Q is connected with a positive power supply Vcc and the output port, and the output port is configured to correspondingly output a high-level signal or a low-level signal when the air conditioner controller is in a working state;
if the effective signal output by the line is a low-level signal, the diode D in the line is connected in series between the collector C of the transistor Q and the forward power supply Vcc, wherein the anode of the diode D is connected with the collector C, and the cathode of the diode D is connected with the forward power supply Vcc;
if the effective signal output by the line is a high-level signal, the diode D in the line is connected in series between the collector C of the transistor Q and the output port, the anode of the diode D is connected with the collector C, and the cathode of the diode D is connected with the output port.
2. The vehicle-mounted air conditioner controller of claim 1, wherein the emitter E of the transistor Q is grounded,
if the output effective signal is a low level signal, the base B of the transistor Q receives a driving signal and is grounded through a resistor R1,
if the output effective signal is a high level signal, the base B of the transistor Q receives a driving signal through a resistor R1.
3. The vehicle-mounted air conditioner controller according to claim 1, wherein the collector C of the transistor Q is connected to the positive power supply Vcc through a resistor R2.
4. The vehicle-mounted air conditioner controller according to claim 1, wherein the transistor Q comprises an N-type field effect transistor if the output valid signal is a low level signal.
5. The vehicle-mounted air conditioner controller according to claim 4, wherein the gate G of the FET receives a driving signal and is grounded through a resistor R1, the source S is grounded, the drain D is connected to the output port and is connected to the forward power source VCC through a resistor R2, and both ends of the resistor R2 are connected in reverse parallel to the diode D.
6. The vehicle-mounted air conditioner controller according to claim 1, wherein the transistor Q comprises an NPN transistor if the outputted valid signal is a high level signal.
7. The vehicle-mounted air conditioner controller of claim 1 wherein the number of said lines is at least two, and each of said lines receives a drive signal.
8. The vehicle-mounted air conditioner controller according to claim 1, wherein when the air conditioner controller has a warm air mode and an air conditioning mode, the number of the lines is two, one of the lines receives a warm air driving signal, and the other of the lines receives an air conditioning driving signal.
9. An automobile equipped with the vehicular air conditioning controller according to any one of claims 1 to 8.
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| CN202110473928.1A CN113043810B (en) | 2021-04-29 | 2021-04-29 | Vehicle-mounted air conditioner controller and automobile provided with same |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201363851Y (en) * | 2009-03-09 | 2009-12-16 | 北京天宇飞鹰微电子系统技术有限公司 | Air-conditioning controller used in train environment |
| CN101832620B (en) * | 2009-03-09 | 2013-01-02 | 北京天宇飞鹰微电子系统技术有限公司 | Air-conditioning controller for train environment |
| CN102175943B (en) * | 2011-02-12 | 2013-12-11 | 中兴通讯股份有限公司 | Load overcurrent protector state detection device and method |
| CN209267169U (en) * | 2019-01-31 | 2019-08-16 | 成都欣力科技有限公司 | A kind of single-chip microcontroller protective device of automotive air-conditioning controller |
| CN209313811U (en) * | 2019-03-01 | 2019-08-27 | 奥克斯空调股份有限公司 | A kind of switching control and air conditioner |
| CN209719274U (en) * | 2019-04-23 | 2019-12-03 | 北斗航天汽车（北京）有限公司 | Power supply based on entire car controller wakes up system and entire car controller |
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