CN210863115U - Angle detection and feedback device for air outlet actuator of automobile air conditioner - Google Patents
Angle detection and feedback device for air outlet actuator of automobile air conditioner Download PDFInfo
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- CN210863115U CN210863115U CN201921408010.3U CN201921408010U CN210863115U CN 210863115 U CN210863115 U CN 210863115U CN 201921408010 U CN201921408010 U CN 201921408010U CN 210863115 U CN210863115 U CN 210863115U
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Abstract
The utility model discloses an automobile air conditioner air-out actuator angle detection and feedback device, which comprises a detection box body, wherein a protractor is fixedly arranged inside the detection box body, a rotating shaft is inserted in the center of the protractor, the detection end of the rotating shaft extends out of the detection box body, and the detection end of the rotating shaft is used for being connected with the rotary output end of an actuator; and a detection feedback circuit is arranged in the detection box body and is used for detecting and correcting the rotation angle of the actuator. Has the advantages that: the actual potential value of the actuator is obtained through the detection feedback circuit, so that comparison, detection and correction are realized. The whole device is integrated and fixed in the detection box body, the occupied space is small, and the carrying is convenient.
Description
Technical Field
The utility model belongs to the technical field of the vehicle air conditioner technique and specifically relates to a vehicle air conditioner air-out executor angle detects and feedback device.
Background
The automobile air conditioner actuator is a component which is composed of a rocker arm driven by a small motor and can rotate an air door according to the requirement of an air conditioner controller. In the rotation control process, the rotation angle is reflected by detecting the angle potential value. For example, fig. 4 is a schematic structural diagram of one of the actuators, and a motor Z11 drives a bull gear Z4 to rotate. As can be seen from the electrical schematic of the actuator of fig. 5, the angular potential is different at different angles of rotation.
On an automobile, actuators used by an air conditioner at least comprise a mode actuator, a cold actuator, a hot actuator and a fresh air actuator, and the actuators are shown in detail in fig. 1, fig. 2 and fig. 3. As can be seen from fig. 1, the control of the air outlet direction can be realized through angle adjustment. As can be seen from fig. 2, the temperature and the cooling and heating are adjusted by angle adjustment. As can be seen from fig. 3, the internal and external circulation blowing control is realized by adjusting the angle.
In the prior art, actuators in an automobile air conditioning system are applied very much, and the air conditioning system has higher requirements on the angle precision of the actuators. To the executor of new production, the processing personnel can't detect the accuracy of new executor rotation angle, can't guarantee whether its rotation angle and the precision of rotation angle meet the requirements, then after the executor is installed on the car, the air-out control effect is poor appears easily, adjusts the difficult scheduling problem. And in prior art, when detecting the executor, the interconnecting link is mixed and disorderly, and when interconnecting link at every turn, all need reason line and connection, causes to detect and all needs to accomplish under professional's guidance, detects the required time length.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a vehicle air conditioner air-out executor angle detects and feedback device will detect the feedback circuit integrated mounting and detect the box body in, realize detecting and proofreading the rotation angle of executor through detecting the feedback circuit.
In order to achieve the above purpose, the utility model adopts the following specific technical scheme:
the utility model provides an automobile air conditioner air-out executor angle detects and feedback device which key technology lies in: the detection device comprises a detection box body, wherein a protractor is fixedly arranged in the detection box body, a rotating shaft is inserted in the center of the protractor, the detection end of the rotating shaft extends out of the detection box body, and the detection end of the rotating shaft is used for being connected with the rotation output end of an actuator;
and a detection feedback circuit is arranged in the detection box body and is used for detecting and correcting the rotation angle of the actuator.
By the device, when the rotation angle of the actuator is detected, the rotation angle is read by the protractor after the rotation shaft of the protractor and the rotation output end of the actuator rotate at any angle through the actuator, the corresponding relation between the rotation angle and the angle potential is calculated in advance by people to obtain the preset potential value under the rotation angle, and the actual potential value of the actuator is obtained through the detection feedback circuit to realize comparison, detection and correction. The whole device is integrated and fixed in the detection box body, the occupied space is small, and the carrying is convenient.
The further technical scheme is as follows: the detection feedback circuit comprises a first difference module, a precision adjusting module, a detection indicating module and a second difference module; the detection indicating module comprises a positive offset indicating unit and a negative offset indicating unit;
the first difference module comprises a first input end, the first input end of the first difference module is used for obtaining an angle setting potential value, the first difference module comprises a second input end used for obtaining an actual rotation angle potential value of the actuator, the first difference output end of the first difference module is connected with the difference input end of the precision adjusting module, and the precision setting end of the precision adjusting module is used for obtaining a precision setting value; the precision standard-reaching output end of the precision adjusting module is respectively connected with the second indication input ends of the positive offset indicating unit and the negative offset indicating unit;
and a second difference output end of the second difference module is respectively connected with first indication input ends of the positive offset indication unit and the negative offset indication unit.
By adopting the scheme, the first difference module realizes the difference value operation of the angle setting potential value and the actual rotation angle potential value of the actuator, and realizes the absolute value operation, so that the output difference value is a high level. And the detection precision is improved by combining the precision adjusting module and comparing the difference voltage output by the first difference output end with a precision set value. By setting output signals of the second difference module and the precision adjusting module, the potential deviation of the output actuator in any angle state is compared, and the actuator is detected and corrected. And the positive offset indicating unit and the negative offset indicating unit are combined, and the corresponding prompt can be carried out through the positive offset indicating unit and the negative offset indicating unit no matter the offset is large or small.
The further technical scheme is as follows: the first difference module comprises a first operational amplifier IC1 having an inverting input of the first operational amplifier IC1 as a first input of the first difference module; the first input end is connected with one end of a first resistor R1, the other end of the first resistor R1 is used as an angle setting potential collecting end, and the angle setting potential collecting end is used for obtaining an angle setting potential value; the positive phase input end of the first operational amplifier IC1 is used as the second input end of the first difference module, the second input end is connected with one end of a third resistor R3, the other end of the third resistor R3 is used as an angle actual potential collecting end, and the angle actual potential collecting end is used for collecting an actual rotation angle potential value of the actuator; a non-inverting input terminal of the first operational amplifier IC1 is connected to the ground through a fourth resistor R4, and an output terminal of the first operational amplifier IC1 is connected to an inverting input terminal of the first operational amplifier IC1 through a second resistor R2;
the output end of the first operational amplifier IC1 is further connected with the inverting input end of a second operational amplifier IC2 through a fifth resistor R5, the inverting input end of the second operational amplifier IC2 is connected with the anode of a first diode D1 through a sixth resistor R6, and the cathode of the first diode D1 is connected with the output end of the second operational amplifier IC 2; the output end of the second operational amplifier IC2 is connected with the anode of a second diode D2, and the cathode of the second diode D2 is connected with the inverting input end of the second operational amplifier IC2 through a ninth resistor R9; the common terminal of the sixth resistor R6 and the first diode D1 is connected to the inverting input terminal of the third operational amplifier IC3 through a seventh resistor R7, the common terminal of the second diode D2 and the ninth resistor R9 is connected to the non-inverting input terminal of the third operational amplifier IC3, the output terminal of the third operational amplifier IC3 is connected to the inverting input terminal of the third operational amplifier IC3 through an eighth resistor R8, and the output terminal of the third operational amplifier IC3 is used as the first difference output terminal of the first difference module.
Through the circuit, the difference operation of the angle setting potential value and the actual rotation angle potential value of the angle corresponding to the protractor is realized through the first operational amplifier IC1, and the absolute value operation of the voltage output by the output end of the first operational amplifier IC1 is realized through the second operational amplifier IC2 and the third operational amplifier IC3, so that the voltage output by the output end of the third operational amplifier IC3 is always greater than or equal to 0.
The angle setting potential value is a sliding sheet voltage value of a first sliding resistor R12, one end of the first sliding resistor R12 is connected with a set power supply, and the other end of the first sliding resistor R12 is grounded;
in order to ensure that the angle setting potential value and the actual rotation angle potential value are compared under the same grade, the voltage value of the setting power supply is equal to the maximum potential value of the actuator.
The further technical scheme is as follows: the precision adjusting module comprises a voltage comparator IC4, wherein the inverting input end of the voltage comparator IC4 is used as the difference value input end of the precision adjusting module, and the non-inverting input end of the voltage comparator IC4 is used as the precision setting end; and the output end of the voltage comparator IC4 is used as the precision standard output end of the precision adjusting module.
The precision set value is a fixed value;
the precision setting value or the voltage regulation output value of the precision setting circuit, the precision setting circuit comprises a second sliding resistor R10, one end of the second sliding resistor R10 is connected with a power supply, the other end of the second sliding resistor R10 is grounded, a sliding sheet of the second sliding resistor R10 is grounded through a third sliding resistor R11, the sliding sheet of the third sliding resistor R11 serves as the voltage regulation output end of the precision setting circuit, and the voltage regulation output value of the precision setting circuit is the voltage value of the voltage regulation output end.
By adopting the scheme, through the voltage comparator, if the precision set value is larger than the output voltage value of the first difference output end, the precision adjusting module outputs a low level, otherwise, the precision adjusting module outputs a high level. The actual voltage of the actuator and the set voltage value are always kept within the precision set value.
In a still further embodiment, the second difference module includes a fifth operational amplifier IC5, an inverting input terminal of the fifth operational amplifier IC5 is used as the first collecting terminal of the second difference module, and a non-inverting input terminal of the fifth operational amplifier IC5 is used as the second collecting terminal of the second difference module; an output terminal of the fifth operational amplifier IC5 is used as a second difference output terminal of the second difference module;
the positive offset indicating unit comprises a first logic AND gate AND1, a first input end of the first logic AND gate AND1 is used as a first indicating input end of the positive offset indicating unit, a second input end of the first logic AND gate AND1 is used as a second indicating input end of the positive offset indicating unit, an output end of the first logic AND gate AND1 is connected with a base electrode of a first triode Q1, a collector electrode of the first triode Q1 is connected with a power supply through a coil of a first relay K1, AND two ends of the coil of the first relay K1 are connected with a third diode D3 in a reverse direction in parallel; the collector and the emitter of the first triode Q1 are grounded;
the normally open switch of the first relay K1 is arranged on a forward power supply circuit of the actuator motor;
the negative offset indicating unit comprises a second logic AND gate AND2, a first input end of the second logic AND gate AND2 is connected with an inverted output end of an inverter, an inverted input end of the inverter is used as a first indicating input end of the negative offset indicating unit, a second input end of the second logic AND gate AND2 is used as a second indicating input end of the negative offset indicating unit, an output end of the second logic AND gate AND2 is connected with a base electrode of a second triode Q2, a collector electrode of the second triode Q2 is connected with a power supply through a coil of a second relay K2, two ends of the coil of the second relay K2 are reversely connected with a fourth diode D4, AND an emitting electrode of the second triode Q2 is grounded;
the normally open switch of the second relay K2 is arranged on the reverse power supply circuit of the actuator motor.
If the voltage output by the first difference module is smaller than the precision set value, the precision adjusting module outputs a low level, the low level is output through the logic AND gate, the coil is not electrified, the motor of the actuator is not electrified, the precision adjusting module outputs the actuator to stop running, and otherwise, the actuator runs until the precision reaches the set precision.
The technical scheme is that at least 2 voltmeter mounting holes are formed in the side wall of the rotating shaft extending out of the detection box body, and a voltmeter is correspondingly mounted in each voltmeter mounting hole.
The technical scheme is that an angle potential setting knob for setting the angle potential value and at least one precision setting knob for setting the precision set value are arranged on the side wall of the rotating shaft extending out of the detection box body. The angle potential setting knob is used for setting according to a preset angle and potential corresponding value. The precision set value is set according to the deeming or by adjusting a potentiometer.
In a further technical scheme, for the convenience of observation, the detection box body is formed by bonding a transparent acrylic plate II.
In order to adapt to each angle, the protractor is a full-circle protractor.
The utility model has the advantages that: and the detection feedback circuit is integrated and installed in the detection box body, and the detection and the correction of the rotation angle of the actuator are realized through the detection feedback circuit. When the rotation angle of the actuator is detected, the rotation angle is read by the protractor after the rotation shaft of the protractor and the rotation output end of the actuator rotate at any angle through the actuator, the corresponding relation between the rotation angle and the angle potential is calculated in advance by people to obtain a preset potential value under the rotation angle, and the actual potential value of the actuator is obtained through the detection feedback circuit to realize comparison, detection and correction. The whole device is integrated and fixed in the detection box body, the occupied space is small, and the carrying is convenient.
Drawings
FIG. 1 is a schematic structural diagram of an air blowing mode actuator of an automobile air conditioner;
FIG. 2 is a schematic structural diagram of a cold/warm mode actuator of an automobile air conditioner;
FIG. 3 is a schematic structural diagram of an internal and external circulation mode actuator of an automobile air conditioner;
FIG. 4 is an exploded view of the actuator;
FIG. 5 is a perspective view of the detection cartridge;
FIG. 6 is a side view of the test cassette;
FIG. 7 is a schematic cross-sectional view C-C' of FIG. 6;
fig. 8 is a schematic diagram of a detection feedback circuit.
Detailed Description
The following provides a more detailed description of the embodiments and the operation of the present invention with reference to the accompanying drawings.
As can be seen from fig. 5-7, the angle detection and feedback device for the air outlet actuator of the automobile air conditioner comprises a detection box body 1, wherein a protractor 2 is fixedly arranged inside the detection box body 1, a rotating shaft 3 is inserted into the center of the protractor 2, the detection end of the rotating shaft 3 extends out of the detection box body 1, and the detection end of the rotating shaft 3 is used for being connected with the rotation output end of the actuator;
as can be seen from fig. 8, a detection feedback circuit is disposed in the detection box 1, and the detection feedback circuit is used for detecting and calibrating the rotation angle of the actuator.
As can also be seen in conjunction with fig. 8, the detection feedback circuit includes a first difference module, a precision adjustment module, a detection indication module, and a second difference module; the detection indicating module comprises a positive offset indicating unit and a negative offset indicating unit;
the first difference module comprises a first input end, the first input end of the first difference module is used for obtaining an angle setting potential value, the first difference module comprises a second input end used for obtaining an actual rotation angle potential value of the actuator, the first difference output end of the first difference module is connected with the difference input end of the precision adjusting module, and the precision setting end of the precision adjusting module is used for obtaining a precision setting value; the precision standard-reaching output end of the precision adjusting module is respectively connected with the second indication input ends of the positive offset indicating unit and the negative offset indicating unit;
and a second difference output end of the second difference module is respectively connected with first indication input ends of the positive offset indication unit and the negative offset indication unit.
As can be seen in connection with fig. 8, the first difference module comprises a first operational amplifier IC1, the inverting input of which first operational amplifier IC1 serves as the first input of the first difference module; the first input end is connected with one end of a first resistor R1, the other end of the first resistor R1 is used as an angle setting potential collecting end, and the angle setting potential collecting end is used for obtaining an angle setting potential value; the positive phase input end of the first operational amplifier IC1 is used as the second input end of the first difference module, the second input end is connected with one end of a third resistor R3, the other end of the third resistor R3 is used as an angle actual potential collecting end, and the angle actual potential collecting end is used for collecting an actual rotation angle potential value of the actuator; a non-inverting input terminal of the first operational amplifier IC1 is connected to the ground through a fourth resistor R4, and an output terminal of the first operational amplifier IC1 is connected to an inverting input terminal of the first operational amplifier IC1 through a second resistor R2;
the output end of the first operational amplifier IC1 is further connected with the inverting input end of a second operational amplifier IC2 through a fifth resistor R5, the inverting input end of the second operational amplifier IC2 is connected with the anode of a first diode D1 through a sixth resistor R6, and the cathode of the first diode D1 is connected with the output end of the second operational amplifier IC 2; the output end of the second operational amplifier IC2 is connected with the anode of a second diode D2, and the cathode of the second diode D2 is connected with the inverting input end of the second operational amplifier IC2 through a ninth resistor R9; the common terminal of the sixth resistor R6 and the first diode D1 is connected to the inverting input terminal of the third operational amplifier IC3 through a seventh resistor R7, the common terminal of the second diode D2 and the ninth resistor R9 is connected to the non-inverting input terminal of the third operational amplifier IC3, the output terminal of the third operational amplifier IC3 is connected to the inverting input terminal of the third operational amplifier IC3 through an eighth resistor R8, and the output terminal of the third operational amplifier IC3 is used as the first difference output terminal of the first difference module.
In this embodiment, the angle setting potential value is a slider voltage value of a first sliding resistor R12, one end of the first sliding resistor R12 is connected to a set power supply, and the other end of the first sliding resistor R12 is grounded;
the voltage value of the set power supply is equal to the maximum potential value of the actuator and is 5V.
As can also be seen from fig. 8, the precision adjusting module includes a voltage comparator IC4, the inverting input terminal of the voltage comparator IC4 is used as the precision adjusting module difference input terminal, and the non-inverting input terminal of the voltage comparator IC4 is used as the precision setting terminal; and the output end of the voltage comparator IC4 is used as the precision standard output end of the precision adjusting module.
In this embodiment, the precision setting value is a voltage regulation output value of the precision setting circuit, the precision setting circuit includes a second sliding resistor R10, one end of the second sliding resistor R10 is connected to a power supply, the other end of the second sliding resistor R10 is connected to ground, the sliding piece of the second sliding resistor R10 is connected to ground through a third sliding resistor R11, the sliding piece of the third sliding resistor R11 serves as a voltage regulation output end of the precision setting circuit, and the voltage regulation output value of the precision setting circuit is a voltage value of the voltage regulation output end.
In this embodiment, the accuracy setting is 0.1, and the multi-stage adjustment is performed to minimize the accuracy value. And primary adjustment can be realized by setting a larger resistor.
As can also be seen in conjunction with fig. 8, the second difference module includes a fifth operational amplifier IC5, an inverting input terminal of the fifth operational amplifier IC5 serves as the first collecting terminal of the second difference module, and a non-inverting input terminal of the fifth operational amplifier IC5 serves as the second collecting terminal of the second difference module; an output terminal of the fifth operational amplifier IC5 is used as a second difference output terminal of the second difference module;
the positive offset indicating unit comprises a first logic AND gate AND1, a first input end of the first logic AND gate AND1 is used as a first indicating input end of the positive offset indicating unit, a second input end of the first logic AND gate AND1 is used as a second indicating input end of the positive offset indicating unit, an output end of the first logic AND gate AND1 is connected with a base electrode of a first triode Q1, a collector electrode of the first triode Q1 is connected with a power supply through a coil of a first relay K1, AND two ends of the coil of the first relay K1 are connected with a third diode D3 in a reverse direction in parallel; the collector and the emitter of the first triode Q1 are grounded;
the normally open switch of the first relay K1 is arranged on a forward power supply circuit of the actuator motor;
the negative offset indicating unit comprises a second logic AND gate AND2, a first input end of the second logic AND gate AND2 is connected with an inverted output end of an inverter, an inverted input end of the inverter is used as a first indicating input end of the negative offset indicating unit, a second input end of the second logic AND gate AND2 is used as a second indicating input end of the negative offset indicating unit, an output end of the second logic AND gate AND2 is connected with a base electrode of a second triode Q2, a collector electrode of the second triode Q2 is connected with a power supply through a coil of a second relay K2, two ends of the coil of the second relay K2 are reversely connected with a fourth diode D4, AND an emitting electrode of the second triode Q2 is grounded;
the normally open switch of the second relay K2 is arranged on the reverse power supply circuit of the actuator motor.
In practical implementation, the second input terminal of the second logic AND gate AND2 may be arbitrarily set to input a voltage value instead.
As can be seen from fig. 5, 2 voltmeter mounting holes 4 are formed in the side wall of the rotating shaft 3 extending out of the detection box body 1, and a voltmeter is correspondingly mounted in the voltmeter mounting holes.
As can be seen from fig. 5, an angle potential setting knob 5 for setting the angle potential value and2 precision setting knobs 6 for setting the precision set value are provided on the side wall of the rotating shaft 3 extending out of the detection case 1.
In this embodiment, the angle potential setting knob 5 is a slide of the first sliding resistor R12.
In the present embodiment, the precision setting knobs 6 for the 2 precision setting values are respectively slides of the second slide resistor R10 and the third slide resistor R11.
In this embodiment, the detection box 1 is formed by bonding a transparent acrylic plate to a transparent acrylic plate.
As can be seen from fig. 7, the protractor 2 is a full circle protractor.
The utility model discloses a theory of operation:
and correspondingly dividing the angle amplitude and the voltage amplitude of the rotation of the actuator in advance. And obtaining the potential value at any angle. With reference to fig. 4, the rotating shaft 3 of the protractor 2 extends into the large gear Z4 of the actuator and is fixed, the actuator is rotated to a designated angle, the protractor 2 measures the rotation angle of the actuator, and the angle amplitude and the voltage amplitude of the rotation, which are preset, are combined to perform corresponding division, so as to obtain the angle setting potential value at the current designated angle; the slide piece of the first slide resistor R12 is slid by combining with the angle potential setting knob, and the slide end of the first slide resistor R12 outputs voltage corresponding to the angle setting potential value.
And acquiring the actual rotation angle potential value of the actuator through the actual angle potential acquisition end of the first difference module. And then the absolute value of the difference between the first difference module and the second difference module is obtained by combining the first difference module, and the minimum difference, namely the precision set value, is set in the precision adjusting module. The precision set value is adjusted through the sliding pieces of the second sliding resistor R10 and the third sliding resistor R11, wherein the second sliding resistor R10 is roughly adjusted, and the third sliding resistor R11 achieves fine adjustment.
When the difference value output by the first difference value output end is larger than or equal to the precision set value, the fact that the angle potential error of the actuator is large is indicated, adjustment needs to be conducted, at the moment, the precision adjusting module outputs a high level, one of the two relays is necessarily electrified, a switch on one power supply line of the motor is closed, the motor is electrified, and the motor conducts forward rotation or reverse rotation according to the output voltage value of the second difference value module. In the present embodiment, the voltage value corresponding to the actuator deflection angle is set to be large when the motor is rotating forward, and the voltage value corresponding to the actuator deflection angle is set to be small when the motor is rotating backward.
And at the moment, a worker is required to correct the actuator until the difference output by the first difference output end is smaller than a precision set value, namely when the actual rotation angle potential value and the angle set potential value are close, the precision adjusting module outputs a low level, the relay coil is not electrified, and a switch on a motor power supply line of the actuator is always in a disconnected state. By the scheme, the detection and the calibration of the actuator are realized.
Claims (9)
1. The utility model provides a vehicle air conditioner air-out executor angle detects and feedback device which characterized in that: the detection device comprises a detection box body (1), wherein a protractor (2) is fixedly arranged in the detection box body (1), a rotating shaft (3) is inserted in the center of the protractor (2), the detection end of the rotating shaft (3) extends out of the detection box body (1), and the detection end of the rotating shaft (3) is used for being connected with the rotation output end of an actuator;
and a detection feedback circuit is arranged in the detection box body (1) and is used for detecting and correcting the rotation angle of the actuator.
2. The angle detection and feedback device for the air outlet actuator of the automobile air conditioner as claimed in claim 1, wherein: the detection feedback circuit comprises a first difference module, a precision adjusting module, a detection indicating module and a second difference module; the detection indicating module comprises a positive offset indicating unit and a negative offset indicating unit;
the first difference module comprises a first input end, the first input end of the first difference module is used for obtaining an angle setting potential value, the first difference module comprises a second input end used for obtaining an actual rotation angle potential value of the actuator, the first difference output end of the first difference module is connected with the difference input end of the precision adjusting module, and the precision setting end of the precision adjusting module is used for obtaining a precision setting value; the precision standard-reaching output end of the precision adjusting module is respectively connected with the second indication input ends of the positive offset indicating unit and the negative offset indicating unit;
and a second difference output end of the second difference module is respectively connected with first indication input ends of the positive offset indication unit and the negative offset indication unit.
3. The angle detection and feedback device for the air outlet actuator of the automobile air conditioner as claimed in claim 2, wherein: the first difference module comprises a first operational amplifier IC1 having an inverting input of the first operational amplifier IC1 as a first input of the first difference module; the first input end is connected with one end of a first resistor R1, the other end of the first resistor R1 is used as an angle setting potential collecting end, and the angle setting potential collecting end is used for obtaining an angle setting potential value; the positive phase input end of the first operational amplifier IC1 is used as the second input end of the first difference module, the second input end is connected with one end of a third resistor R3, the other end of the third resistor R3 is used as an angle actual potential collecting end, and the angle actual potential collecting end is used for collecting an actual rotation angle potential value of the actuator; a non-inverting input terminal of the first operational amplifier IC1 is connected to the ground through a fourth resistor R4, and an output terminal of the first operational amplifier IC1 is connected to an inverting input terminal of the first operational amplifier IC1 through a second resistor R2;
the output end of the first operational amplifier IC1 is further connected with the inverting input end of a second operational amplifier IC2 through a fifth resistor R5, the inverting input end of the second operational amplifier IC2 is connected with the anode of a first diode D1 through a sixth resistor R6, and the cathode of the first diode D1 is connected with the output end of the second operational amplifier IC 2; the output end of the second operational amplifier IC2 is connected with the anode of a second diode D2, and the cathode of the second diode D2 is connected with the inverting input end of the second operational amplifier IC2 through a ninth resistor R9; the common terminal of the sixth resistor R6 and the first diode D1 is connected to the inverting input terminal of the third operational amplifier IC3 through a seventh resistor R7, the common terminal of the second diode D2 and the ninth resistor R9 is connected to the non-inverting input terminal of the third operational amplifier IC3, the output terminal of the third operational amplifier IC3 is connected to the inverting input terminal of the third operational amplifier IC3 through an eighth resistor R8, and the output terminal of the third operational amplifier IC3 is used as the first difference output terminal of the first difference module.
4. The angle detection and feedback device for the air outlet actuator of the automobile air conditioner as claimed in claim 3, wherein: the precision adjusting module comprises a voltage comparator IC4, wherein the inverting input end of the voltage comparator IC4 is used as the difference value input end of the precision adjusting module, and the non-inverting input end of the voltage comparator IC4 is used as the precision setting end; and the output end of the voltage comparator IC4 is used as the precision standard output end of the precision adjusting module.
5. The angle detection and feedback device for the air outlet actuator of the automobile air conditioner as claimed in claim 3 or 4, wherein: the second difference module comprises a fifth operational amplifier IC5, wherein an inverting input terminal of the fifth operational amplifier IC5 serves as a first collecting terminal of the second difference module, and a non-inverting input terminal of the fifth operational amplifier IC5 serves as a second collecting terminal of the second difference module; an output terminal of the fifth operational amplifier IC5 is used as a second difference output terminal of the second difference module;
the positive offset indicating unit comprises a first logic AND gate AND1, a first input end of the first logic AND gate AND1 is used as a first indicating input end of the positive offset indicating unit, a second input end of the first logic AND gate AND1 is used as a second indicating input end of the positive offset indicating unit, an output end of the first logic AND gate AND1 is connected with a base electrode of a first triode Q1, a collector electrode of the first triode Q1 is connected with a power supply through a coil of a first relay K1, AND two ends of the coil of the first relay K1 are connected with a third diode D3 in a reverse direction in parallel; the collector and the emitter of the first triode Q1 are grounded;
the normally open switch of the first relay K1 is arranged on a forward power supply circuit of the actuator motor;
the negative offset indicating unit comprises a second logic AND gate AND2, a first input end of the second logic AND gate AND2 is connected with an inverted output end of an inverter, an inverted input end of the inverter is used as a first indicating input end of the negative offset indicating unit, a second input end of the second logic AND gate AND2 is used as a second indicating input end of the negative offset indicating unit, an output end of the second logic AND gate AND2 is connected with a base electrode of a second triode Q2, a collector electrode of the second triode Q2 is connected with a power supply through a coil of a second relay K2, two ends of the coil of the second relay K2 are reversely connected with a fourth diode D4, AND an emitting electrode of the second triode Q2 is grounded;
the normally open switch of the second relay K2 is arranged on the reverse power supply circuit of the actuator motor.
6. The angle detection and feedback device for the air outlet actuator of the automobile air conditioner as claimed in claim 1 or 2, wherein: the side wall of the rotating shaft (3) extending out of the detection box body (1) is at least provided with 2 voltmeter mounting holes (4), and the voltmeter is correspondingly mounted in the voltmeter mounting holes.
7. The angle detection and feedback device for the air outlet actuator of the automobile air conditioner as claimed in claim 2, wherein: an angle potential setting knob (5) for setting the angle potential value and at least one precision setting knob (6) for setting the precision set value are arranged on the side wall of the rotating shaft (3) extending out of the detection box body (1).
8. The angle detection and feedback device for the air outlet actuator of the automobile air conditioner as claimed in claim 1, wherein: the detection box body (1) is formed by bonding a transparent acrylic plate.
9. The angle detection and feedback device for the air outlet actuator of the automobile air conditioner as claimed in claim 1, wherein: the protractor (2) is a full-circle protractor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921408010.3U CN210863115U (en) | 2019-08-27 | 2019-08-27 | Angle detection and feedback device for air outlet actuator of automobile air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921408010.3U CN210863115U (en) | 2019-08-27 | 2019-08-27 | Angle detection and feedback device for air outlet actuator of automobile air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210863115U true CN210863115U (en) | 2020-06-26 |
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ID=71308202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921408010.3U Expired - Fee Related CN210863115U (en) | 2019-08-27 | 2019-08-27 | Angle detection and feedback device for air outlet actuator of automobile air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210863115U (en) |
-
2019
- 2019-08-27 CN CN201921408010.3U patent/CN210863115U/en not_active Expired - Fee Related
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Granted publication date: 20200626 |