CN213119455U - Temperature control device and air conditioner - Google Patents
Temperature control device and air conditioner Download PDFInfo
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- CN213119455U CN213119455U CN202022102258.6U CN202022102258U CN213119455U CN 213119455 U CN213119455 U CN 213119455U CN 202022102258 U CN202022102258 U CN 202022102258U CN 213119455 U CN213119455 U CN 213119455U
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Abstract
The utility model provides a temperature control device and air conditioner, wherein, the device includes: the temperature sensing bulb circuit is used for detecting the ambient temperature; the main chip is connected with the temperature sensing bulb circuit and used for receiving the ambient temperature detected by the temperature sensing bulb circuit and outputting a first voltage according to the target temperature and the ambient temperature; the amplifying circuit is connected with the main chip and used for amplifying the first voltage output by the main chip and outputting a second voltage; and the charge-discharge module is connected with the amplifying circuit and used for correcting the second voltage output by the amplifying circuit so as to output the target voltage to the motor. The utility model discloses can improve temperature control device's control accuracy, improve the holistic stability of system, improve user experience.
Description
Technical Field
The utility model relates to an air conditioner technical field particularly, relates to a temperature control device and air conditioner.
Background
The temperature controller is an important control unit of the air conditioning system and is an important basic component for time limit system safety control and energy-saving control. Generally, the temperature controller controls the rotation speed of the motor by detecting the ambient temperature and comparing the ambient temperature with the set mode and temperature, and adjusts the air supply amount of the motor to achieve the purpose of controlling the room temperature.
At present, a temperature controller outputs PWM/DAC to adjust after comparing the ambient temperature with the set temperature. The PWM/DAC is a stable voltage value. Normally, the thermostat will only output a relatively low voltage (e.g., 0-3.3V or 0-5V), which is not satisfactory for the motor, and therefore the PWM/DAC output goes through an amplifier circuit. However, the voltage after passing through the amplifying circuit may not always reach the target voltage stably, which may result in low control accuracy of the temperature controller, large temperature fluctuation, and poor user experience.
Aiming at the problem that the control precision of the temperature controller is not high because the amplified voltage can not stably reach the target voltage, an effective solution is not provided at present.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a temperature control device and air conditioner, the device includes: the temperature sensing bulb circuit is used for detecting the ambient temperature; the main chip is connected with the temperature sensing bulb circuit and used for receiving the ambient temperature detected by the temperature sensing bulb circuit and outputting a first voltage according to the target temperature and the ambient temperature; the amplifying circuit is connected with the main chip and used for amplifying the first voltage output by the main chip and outputting a second voltage; and the charge-discharge module is connected with the amplifying circuit and used for correcting the second voltage output by the amplifying circuit so as to output the target voltage to the motor.
In one embodiment, the temperature sensing bulb circuit detects a plurality of ambient temperatures, the main chip calculates an average value of the plurality of ambient temperatures to obtain an average ambient temperature, and outputs a first voltage according to a target temperature and the average ambient temperature.
In one embodiment, the temperature control device further comprises a lower computer module, the lower computer module is connected with the main chip, the main chip sends a voltage signal to the lower computer module when outputting a first voltage, and the lower computer module determines a value of a target voltage according to the voltage signal; the lower computer module is also connected with the charge-discharge module and used for controlling the charge-discharge module to correct the second voltage according to the value of the target voltage so as to output the target voltage to the motor.
In one embodiment, the charging and discharging module includes a charging power supply; the lower computer module is specifically configured to: and acquiring a value of the second voltage, determining whether the value of the second voltage is greater than a value of the target voltage, and controlling the second voltage to charge the charging power supply to output the target voltage to the motor under the condition that the value of the second voltage is greater than the value of the target voltage.
In one embodiment, the charge and discharge module further comprises a discharge power supply; the lower computer module is also specifically used for: and in the case that it is determined that the value of the second voltage is not greater than the value of the target voltage, determining whether the value of the second voltage is less than the value of the target voltage, and in the case that it is determined that the value of the second voltage is less than the value of the target voltage, controlling the discharge power supply to perform voltage compensation on the second voltage to output the target voltage to the motor.
In one embodiment, the lower computer module is further specifically configured to control the charge-discharge module to output the second voltage to the motor when it is determined that the value of the second voltage is not less than the value of the target voltage.
In one embodiment, the charging power supply is also used to charge the discharging power supply.
In one embodiment, the temperature control device further comprises a rotation speed feedback module, wherein the rotation speed feedback module is connected with the motor and used for detecting the actual rotation speed of the motor; the rotating speed feedback module is also connected with the main chip and used for sending the actual rotating speed to the main chip, the main chip determines the corresponding actual temperature according to the actual rotating speed, and outputs a third voltage according to the actual temperature and the target temperature.
In one embodiment, the main chip stores a preset correspondence table, and the preset correspondence table includes a correspondence relationship between a temperature and a rotation speed.
The embodiment of the utility model provides a still provide an air conditioner, this air conditioner includes the temperature control device in the above-mentioned embodiment.
In the above embodiment, the charge-discharge module is arranged between the amplifying circuit and the motor, so that the second voltage is corrected when the second voltage output by the amplifying circuit is not equal to the target voltage, the target voltage is output to the motor, the control precision of the temperature control device can be improved, the overall system stability is improved, and the user experience is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural diagram of a temperature control device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of controlling voltage output values using a charge and discharge module according to an embodiment of the present invention;
fig. 3 is a flow chart of a temperature control method based on a temperature control device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
An embodiment of the present application provides a temperature control device, which may include: the temperature sensing bulb circuit is used for detecting the ambient temperature; the main chip is connected with the temperature sensing bulb circuit and used for receiving the ambient temperature detected by the temperature sensing bulb circuit and outputting a first voltage according to the target temperature and the ambient temperature; the amplifying circuit is connected with the main chip and used for amplifying the first voltage output by the main chip and outputting a second voltage; and the charge-discharge module is connected with the amplifying circuit and used for correcting the second voltage output by the amplifying circuit so as to output the target voltage to the motor.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a temperature control device according to an embodiment of the present disclosure. As shown in fig. 1, the temperature control device 100 may include a bulb circuit 101, a main chip 102, an amplifying circuit 103, and a charge and discharge module 104.
The temperature control device in this embodiment may be a stepless speed regulation temperature control device. Specifically, different voltage values can be output through PWM/DAC control, so that the motor can be controlled to reach different rotating speeds, and stepless regulation and control of the rotating speeds can be realized.
The bulb circuit 101 may be used to detect the ambient temperature, among other things. For example, the bulb circuit 101 may be a temperature sensor. In one embodiment, the bulb circuit 101 may detect the ambient temperature in real time. The thermal bulb circuit 101 is connected to the main chip 102.
The main chip 102 may receive the ambient temperature detected by the bulb circuit 101. The main chip 102 may output a first voltage according to the ambient temperature and the target temperature. The target temperature may be a preset temperature carried in the power-on command. Since the first voltage is not sufficient to drive the motor to rotate at the target rotation speed, the first voltage needs to be amplified. The main chip 102 may output a first voltage to the amplifying circuit 103. The amplification circuit 103 may be connected to the main chip 102. The amplifying circuit 103 may amplify the first voltage for the purpose of amplifying the first voltage to a target voltage, so that the motor 200 operates at a target rotation speed to achieve a target temperature.
In consideration of the error, the second voltage amplified by the amplifying circuit 103 may not be equal to the target voltage. The second voltage may be corrected by the charge-discharge module 104, thereby outputting the target voltage to the motor 200. The charge-discharge module 104 may be connected to the amplification circuit 103.
The target voltage may be determined by the main chip 102 according to the ambient temperature and the target temperature. When the motor 200 is operated at the target voltage, the target rotation speed can be reached, so that the ambient temperature reaches the target temperature.
In the temperature control device in the above embodiment, the charge-discharge module is arranged between the amplifying circuit and the motor, so that the second voltage output by the amplifying circuit is corrected under the condition that the second voltage is not equal to the target voltage, the target voltage is output to the motor, the control precision of the temperature control device can be improved, the overall stability is improved, and the user experience is improved.
Further, in one embodiment, the bulb circuit 101 may detect multiple ambient temperatures. For example, 4 to 10 ambient temperatures may be detected. The bulb circuit 101 may send the detected plurality of ambient temperatures to the main chip 102. The master chip 102 may calculate an average of the plurality of ambient temperatures to obtain an average ambient temperature. Thereafter, the main chip 102 may output a first voltage according to the target temperature and the average ambient temperature.
In the above embodiment, the error of ambient temperature detection can be reduced by averaging a plurality of ambient temperatures detected by the bulb circuit, thereby improving the control accuracy of temperature control.
Further, in one embodiment, the temperature control device may further include a lower computer module. With continued reference to fig. 1, as shown in fig. 1, the temperature control device 100 may further include a lower computer module 105. The lower computer module 105 may be connected with the main chip 102. The master chip 102 may transmit a corresponding voltage signal to the lower computer module 105 while outputting the first voltage. The lower computer module 105 can determine the value of the target voltage according to the received voltage signal. The lower computer module 105 can also be connected with the charging and discharging module 104. The lower computer module 105 may control the charge-discharge module to correct the second voltage according to the value of the target voltage, so as to output the target voltage to the motor 200.
Further, in one embodiment, the charging and discharging module 104 may include a charging power source. The lower computer module 105 may be specifically configured to obtain a value of the second voltage. Wherein, can be by the value of charge-discharge module 105 measurement second voltage to send the value of second voltage to lower computer module 105. The lower computer module 105 may determine whether the value of the second voltage is greater than the value of the target voltage. In the case where it is determined that the value of the second voltage is greater than the value of the target voltage, the lower computer module 105 may control the second voltage to charge the charging power source, thereby outputting the target voltage to the motor 200.
Further, in one embodiment, the charging and discharging module 104 may further include a discharging power supply. The lower computer module 105 may determine whether the value of the second voltage is less than the value of the target voltage, in a case where it is determined that the value of the second voltage is not greater than the target voltage. In the case where it is determined that the second voltage is smaller than the value of the target voltage, the lower computer module 105 controls the discharging power supply to perform voltage compensation on the second voltage, thereby outputting the target voltage to the motor 200.
Further, in one embodiment, the lower computer module 105 may also control the charge and discharge module 104 to directly output the second voltage to the motor 200 in a case where it is determined that the value of the second voltage is not less than the value of the target voltage, that is, in a case where the value of the second voltage is equal to the value of the target voltage.
Further, in one embodiment, the charging power source in the charging and discharging module 104 may also be used to charge the discharging power source. In the above embodiment, the discharge power supply is charged through the charging power supply, energy can be saved, and when the electric quantity of the discharge power supply is insufficient, the discharge power supply is charged in time through the charging power supply, so that the situation that the compensated voltage cannot reach the target voltage can be avoided.
Referring to fig. 2, a schematic diagram of controlling an output voltage value by using a charging/discharging module is shown. As shown in fig. 2, the lower computer module may compare the second voltage value with the target voltage value, and when the second voltage value is greater than the target voltage value, may perform voltage storage, that is, control the second voltage to charge the charging power supply so that the second voltage value is equal to the target voltage value. In the case that the second voltage value is smaller than the target voltage value, voltage compensation may be performed, that is, the discharge power supply is controlled to compensate the second voltage value so that the second voltage value is equal to the target voltage value. In the case where the second voltage value is equal to the target voltage value, the target voltage may be output to the motor. Further, the charging power supply for voltage storage may charge the discharging power supply for voltage compensation.
Further, in one embodiment, the temperature control device may further include a rotational speed feedback module. With continued reference to fig. 1, the temperature control device 100 may also include a speed feedback module 106. The speed feedback module 106 may be coupled to the motor 200 for detecting an actual speed of the motor 200. The speed feedback module 106 may also be coupled to the main chip 102 for sending the detected actual speed to the main chip 102. The master chip 102 may determine a corresponding actual temperature based on the received actual rotational speed. Thereafter, the main chip 102 may output a third voltage according to the received actual temperature and the target temperature. The amplifying circuit 103 may amplify the third voltage to obtain a fourth voltage. The charge-discharge module 104 may correct the fourth voltage under the control of the lower computer module 105 to output the corrected voltage to the motor 200.
The temperature control device in the above embodiment can adjust in time under the condition of motor failure through rotating speed feedback, so that the control precision of the temperature control device can be further improved, and the overall system stability is improved.
Further, in one embodiment, a preset mapping table may be stored in the main chip. The preset correspondence table may include a correspondence relationship between the temperature and the rotation speed. After the main chip receives the actual rotating speed sent by the rotating speed feedback module, the main chip can search the actual temperature corresponding to the actual rotating speed from the preset corresponding table. And then, the main chip can compare the actual temperature with the target temperature to regulate and control the temperature.
Referring to fig. 3, a flowchart of a temperature control method of a temperature control device according to an embodiment of the present invention is shown, and as shown in fig. 3, the method includes the following steps:
in step S301, an ambient temperature is detected by a bulb circuit.
Step S302, the main chip is used for receiving the environment temperature detected by the temperature sensing bulb and outputting a first voltage according to the target temperature and the environment temperature.
Step S303, amplifying the first voltage output by the main chip by using the amplifying circuit, and outputting a second voltage.
Step S304, the second voltage output by the amplifying circuit is corrected by using the charging and discharging module to output the target voltage to the motor.
In particular, the bulb circuit may be used to detect ambient temperature. For example, the bulb circuit may be a temperature sensor. In one embodiment, the bulb circuit may detect the ambient temperature in real time.
The master chip may receive an ambient temperature detected by the bulb circuit. The main chip may output a first voltage according to the ambient temperature and the target temperature. The target temperature may be a preset temperature carried in the power-on command. Since the first voltage is not sufficient to drive the motor to rotate at the target rotation speed, the first voltage needs to be amplified. The main chip may output the first voltage to the amplifying circuit. The amplifying circuit may amplify the first voltage to a target voltage, so that the motor operates at a target rotation speed to achieve a target temperature.
Due to the error, the second voltage amplified by the amplifying circuit may not be equal to the target voltage. Therefore, the second voltage can be corrected by the charge-discharge module, so that the target voltage is output to the motor.
In the temperature control method in the embodiment, the charge-discharge module is arranged between the amplifying circuit and the motor, and the charge-discharge module is used for correcting the second voltage, so that the target voltage is output to the motor, the control precision of temperature control can be improved, the overall stability is improved, and the user experience is improved.
Further, in one embodiment, the detecting the ambient temperature using the bulb circuit may include: the bulb circuit detects a plurality of ambient temperatures. Accordingly, outputting the first voltage according to the target temperature and the ambient temperature by using the main chip may include: the main chip calculates the average value of a plurality of environment temperatures to obtain the average environment temperature; the main chip determines a first voltage according to the target temperature and the average ambient temperature, and outputs the first voltage.
In particular, the bulb circuit may detect a plurality of ambient temperatures. For example, 4 to 10 ambient temperatures may be detected. The bulb circuit may send the detected plurality of ambient temperatures to the master chip. The master chip may calculate an average of the plurality of ambient temperatures to obtain an average ambient temperature. Thereafter, the main chip may determine a first voltage according to a temperature difference between the target temperature and the average ambient temperature, and output the first voltage.
In the above embodiment, the error of ambient temperature detection can be reduced by averaging a plurality of ambient temperatures detected by the bulb circuit, thereby improving the control accuracy of temperature control.
Further, in an embodiment, modifying the second voltage output by the amplifying circuit by using the charging and discharging module to output the target voltage to the motor may include: the charging and discharging module corrects the second voltage under the control of the lower computer module so as to output a target voltage to the motor; the lower computer module receives a voltage signal sent by the main chip when outputting the first voltage, determines a value of a target voltage according to the voltage signal, and controls the charge-discharge module to correct the second voltage according to the value of the target voltage so as to output the target voltage to the motor.
Specifically, the master chip may transmit a corresponding voltage signal to the lower computer module while outputting the first voltage. The lower computer module can determine the value of the target voltage according to the received voltage signal. The lower computer module can control the charge-discharge module to correct the second voltage according to the value of the target voltage so as to output the target voltage to the motor.
Further, in an embodiment, the controlling, by the lower computer module, the charge-discharge module to modify the second voltage according to the value of the target voltage to output the target voltage to the motor may include: the lower computer module acquires a value of a second voltage; the lower computer module determines whether the value of the second voltage is larger than the value of the target voltage; and under the condition that the value of the second voltage is determined to be larger than the value of the target voltage, the lower computer module controls the second voltage to charge the charging power supply in the charging and discharging module so as to output the target voltage to the motor.
Specifically, the value of the second voltage can be measured by the charge and discharge module, and the value of the second voltage is sent to the lower computer module. The lower computer module can determine whether the value of the second voltage is greater than the value of the target voltage. The lower computer module may control the second voltage to charge the charging power supply of the charging and discharging module under the condition that it is determined that the value of the second voltage is greater than the value of the target voltage, so as to output the target voltage to the motor.
Further, in an embodiment, after the lower computer module determines whether the value of the second voltage is greater than the value of the target voltage, the method may further include: in a case where it is determined that the value of the second voltage is not greater than the value of the target voltage, the lower computer module determines whether the value of the second voltage is less than the value of the target voltage; and under the condition that the value of the second voltage is smaller than the value of the target voltage, the lower computer module controls the discharging power supply in the charging and discharging module to perform voltage compensation on the second voltage so as to output the target voltage to the motor.
Specifically, the lower computer module may determine whether the value of the second voltage is smaller than the value of the target voltage, in a case where it is determined that the value of the second voltage is not larger than the target voltage. The lower computer module may control the discharge power supply of the charge-discharge module to perform voltage compensation on the second voltage when it is determined that the second voltage is less than the value of the target voltage, so as to output the target voltage to the motor.
Further, in an embodiment, after the lower computer module determines whether the value of the second voltage is smaller than the value of the target voltage, the method may further include: and under the condition that the value of the second voltage is not smaller than the value of the target voltage, the lower computer module controls the charge-discharge module to output the second voltage to the motor.
Specifically, the lower computer module may further control the charge-discharge module to directly output the second voltage to the motor when it is determined that the value of the second voltage is not less than the value of the target voltage, that is, when the value of the second voltage is equal to the value of the target voltage.
Further, in one embodiment, the method may further include: detecting the actual rotating speed of the motor by using a rotating speed feedback module, and sending the actual rotating speed to a main chip; and determining the corresponding actual temperature by using the main chip according to the actual rotating speed, and outputting a third voltage according to the actual temperature and the target temperature.
Specifically, the speed feedback module may detect an actual speed of the motor. The rotation speed feedback module can send the detected actual rotation speed to the main chip. The main chip can determine the corresponding actual temperature according to the received actual rotating speed. Thereafter, the main chip may output a third voltage according to the received actual temperature and the target temperature. The amplifying circuit may amplify the third voltage to obtain a fourth voltage. The charge-discharge module can correct the fourth voltage under the control of the lower computer module so as to output the corrected voltage to the motor, thereby realizing the target temperature.
The temperature control method in the embodiment can adjust in time under the condition of motor failure through rotating speed feedback, can further improve the control precision of the temperature control device, and improves the overall system stability.
The embodiment of the utility model provides a still provide an air conditioner, this air conditioner can include the temperature control device in above-mentioned arbitrary embodiment.
From the above description, it can be seen that the embodiments of the present invention achieve the following technical effects: the charge-discharge module is arranged between the amplifying circuit and the motor, so that the second voltage is corrected under the condition that the second voltage output by the amplifying circuit is not equal to the target voltage, the target voltage is output to the motor, the control precision of the temperature control device can be improved, the overall system stability is improved, and the user experience is improved.
Although various specific embodiments are mentioned in the disclosure of the present application, the present application is not limited to the cases described in the industry standards or the examples, and the like, and some industry standards or the embodiments slightly modified based on the implementation described in the custom manner or the examples can also achieve the same, equivalent or similar, or the expected implementation effects after the modifications. Embodiments employing such modified or transformed data acquisition, processing, output, determination, etc., may still fall within the scope of alternative embodiments of the present application.
While the present application has been described by way of examples, those of ordinary skill in the art will appreciate that there are numerous variations and permutations of the present application that do not depart from the spirit of the present application and that the appended embodiments are intended to include such variations and permutations without departing from the present application.
Claims (10)
1. A temperature control apparatus, comprising:
the temperature sensing bulb circuit is used for detecting the ambient temperature;
the main chip is connected with the temperature sensing bulb circuit and used for receiving the ambient temperature detected by the temperature sensing bulb circuit and outputting a first voltage according to a target temperature and the ambient temperature;
the amplifying circuit is connected with the main chip and used for amplifying the first voltage output by the main chip and outputting a second voltage;
and the charge-discharge module is connected with the amplifying circuit and used for correcting the second voltage output by the amplifying circuit so as to output a target voltage to the motor.
2. The temperature control apparatus according to claim 1, wherein the bulb circuit detects a plurality of ambient temperatures, the main chip calculates an average value of the plurality of ambient temperatures to obtain an average ambient temperature, and outputs the first voltage according to the target temperature and the average ambient temperature.
3. The temperature control device according to claim 1, further comprising a lower computer module, wherein the lower computer module is connected with the main chip, the main chip sends a voltage signal to the lower computer module when outputting a first voltage, and the lower computer module determines the value of the target voltage according to the voltage signal;
the lower computer module is also connected with the charging and discharging module and used for controlling the charging and discharging module to correct the second voltage according to the value of the target voltage so as to output the target voltage to the motor.
4. The temperature control device of claim 3, wherein the charge-discharge module comprises a charging power supply;
the lower computer module is specifically configured to: and acquiring the value of the second voltage, determining whether the value of the second voltage is greater than the value of the target voltage, and controlling the second voltage to charge the charging power supply to output the target voltage to the motor under the condition that the value of the second voltage is greater than the value of the target voltage.
5. The temperature control device of claim 4, wherein the charge-discharge module further comprises a discharge power source;
the lower computer module is also specifically used for: and in the case where it is determined that the value of the second voltage is not greater than the value of the target voltage, determining whether the value of the second voltage is less than the value of the target voltage, and in the case where it is determined that the value of the second voltage is less than the value of the target voltage, controlling the discharge power supply to perform voltage compensation on the second voltage to output the target voltage to the motor.
6. The temperature control device according to claim 5, wherein the lower computer module is further specifically configured to control the charge-discharge module to output the second voltage to the motor when it is determined that the value of the second voltage is not less than the value of the target voltage.
7. The temperature control device of claim 5, wherein the charging power supply is further configured to charge the discharging power supply.
8. The temperature control device of claim 1, further comprising a speed feedback module coupled to the motor for detecting an actual speed of the motor;
the rotating speed feedback module is further connected with the main chip and used for sending the actual rotating speed to the main chip, the main chip determines the corresponding actual temperature according to the actual rotating speed, and outputs a third voltage according to the actual temperature and the target temperature.
9. The temperature control device of claim 1, wherein the main chip stores a preset mapping table, and the preset mapping table includes a mapping relationship between temperature and rotation speed.
10. An air conditioner, comprising: the temperature control device of any one of claims 1 to 9.
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| CN202022102258.6U CN213119455U (en) | 2020-09-22 | 2020-09-22 | Temperature control device and air conditioner |
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| CN202022102258.6U CN213119455U (en) | 2020-09-22 | 2020-09-22 | Temperature control device and air conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066531A (en) * | 2020-09-22 | 2020-12-11 | 珠海格力电器股份有限公司 | Temperature control device and method and air conditioner |
| CN114353426A (en) * | 2021-12-27 | 2022-04-15 | 广州万宝电子科技有限公司 | Temperature control device and method |
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- 2020-09-22 CN CN202022102258.6U patent/CN213119455U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066531A (en) * | 2020-09-22 | 2020-12-11 | 珠海格力电器股份有限公司 | Temperature control device and method and air conditioner |
| CN114353426A (en) * | 2021-12-27 | 2022-04-15 | 广州万宝电子科技有限公司 | Temperature control device and method |
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