CN209782930U - air-conditioning air pipe temperature sensor - Google Patents
air-conditioning air pipe temperature sensor Download PDFInfo
- Publication number
- CN209782930U CN209782930U CN201920223461.3U CN201920223461U CN209782930U CN 209782930 U CN209782930 U CN 209782930U CN 201920223461 U CN201920223461 U CN 201920223461U CN 209782930 U CN209782930 U CN 209782930U
- Authority
- CN
- China
- Prior art keywords
- resistor
- capacitor
- mos transistor
- pin
- integrated chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses an air-conditioning air pipe temperature sensor, which comprises a power circuit unit, a temperature detection unit and a temperature control unit; the power supply circuit unit is connected with the input end of the temperature detection unit and adjusts the power supply voltage into a voltage acceptable by the circuit; the temperature detection unit sets a detection range according to the potentiometer RV1, the thermistor RT1 detects the external temperature, and an external temperature signal is converted into an electric signal provided for the integrated chip U1; the temperature control unit is connected with the integrated chip U1 of the temperature detection unit, the electric signal given by the integrated chip U1 determines the connection of the relay RL1, when the temperature is lower than the set temperature, the relay RL1 is connected to start heating, and when the temperature is higher than the set temperature, the relay RL1 is disconnected to finish heating. The utility model discloses a circuit structure is simple, can realize implementing regulation and control air conditioner tuber pipe temperature, guarantees that the temperature is unchangeable at settlement numerical value, and the reliability is stronger.
Description
Technical Field
The utility model relates to a temperature-sensing ware field particularly, relates to an air conditioner tuber pipe temperature sensor, can use in air conditioner tuber pipe temperature control system to the range change of control air conditioner tuber pipe temperature accurately regulates and control air conditioner tuber pipe temperature in real time.
Background
In industrial production and daily life, temperature detection and control techniques are widely used in various fields, including the automotive industry. In a traditional temperature measurement system, temperature measuring elements comprise a thermocouple and a thermal resistor, but the output of the thermocouple and the thermal resistor is generally voltage, and some external hardware circuits are required for converting the voltage into the temperature, and the design of the hardware circuits and the debugging of software are complex.
The temperature sensor is a sensor which can sense temperature and convert the temperature into a usable output signal, and is used as a main component in a temperature measurement system, and the temperature sensor is various. The measurement method can be divided into two main types of contact and non-contact, and some electronic elements with positive temperature coefficient and negative temperature coefficient are used.
Most of the existing temperature sensors can only detect the outside temperature, can not change the temperature in an area, and can not be adjusted in real time according to the set temperature.
SUMMERY OF THE UTILITY MODEL
To the problem in the correlation technique, the utility model provides an air conditioner tuber pipe temperature sensor to overcome the above-mentioned technical problem that current correlation technique exists.
The technical scheme of the utility model is realized like this:
An air conditioner air pipe temperature sensor comprises a power circuit unit, a temperature detection unit and a temperature control unit;
the output end of the power supply circuit unit is connected with the input end of the temperature detection unit, and the output end of the temperature detection unit is connected with the input end of the temperature control unit;
The power supply circuit unit comprises an integrated chip U3, a transformer TR1, a rectifier bridge stack BR1, a capacitor C1, a capacitor C2 and a resistor R1;
A 1 st pin of the transformer TR1 is connected with a power supply voltage, a 2 nd pin of the transformer TR1 is connected with the power supply voltage, a 3 rd pin of the transformer TR1 is connected with a terminal a of the rectifier bridge stack BR1, a 4 th pin of the transformer TR1 is connected with a terminal b of the rectifier bridge stack BR1, a C terminal of the rectifier bridge stack BR1 is connected with one end of the capacitor C1, a 2 nd pin of the integrated chip U3 and one end of the capacitor C2 are all grounded, a d terminal of the rectifier bridge stack BR1 is respectively connected with the other end of the capacitor C1 and the 1 st pin of the integrated chip U3, a 3 rd pin of the integrated chip U3 is respectively connected with the other end of the capacitor C2 and one end of the resistor R1, and the integrated chip U3 is a 7089 type three-terminal integrated voltage regulator;
The temperature detection unit comprises a thermistor RT1, a potentiometer RV1, a capacitor C3, a resistor R2, a resistor R3, a resistor R4, a resistor R5, an MOS tube Q1, an MOS tube Q2 and a voltage stabilizing diode D1;
One end of the capacitor C3 is connected to the negative electrode of the zener diode D1, the D electrode of the MOS transistor Q1, the D electrode of the MOS transistor Q2, one end of the resistor R2, one end of the thermistor RT1, and the other end of the resistor R1, the other end of the capacitor C3 is connected to the positive electrode of the zener diode D1, one end of the resistor R3, one end of the resistor R4, and one end of the potentiometer RV1, the S electrode of the MOS transistor Q1 is connected to the S electrode of the MOS transistor Q2, the G electrode of the MOS transistor Q1 is connected to the G electrode of the MOS transistor Q2, the other end of the resistor R2, and one end of the resistor R3, the other end of the thermistor RT1 is connected to the other end of the resistor R4 and one end of the resistor R5, and the other end of the resistor R5 is connected to the other end of the potentiometer R1;
the temperature control unit comprises an integrated chip U1, a capacitor C4, a capacitor C5, a bidirectional thyristor U2, a diode D2 and a relay RL 1;
A 1 st pin of the integrated chip U1 is connected to one end of the capacitor C4, one end of the capacitor C5, a T1 pole of the triac U2, an anode of the diode D2, one end of the relay RL1, the other end of the capacitor C3, an anode of the zener diode D1, one end of the resistor R3, one end of the resistor R4 and one end of the potentiometer RV1, and the 2 nd pin of the integrated chip U1 is connected to the other end of the resistor R5 and the other end of the potentiometer RV1, and the 3 rd pin, the G pole of the triac U2, the S pole of the MOS transistor Q1 and the S pole of the MOS transistor Q2 are connected to the other end of the relay RL1, the cathode of the diode D2, the G pole of the triac U2, the S pole of the MOS transistor Q1 and the S pole of the MOS transistor Q2, and the 4 th pin of the integrated chip U1 is connected to the 8 th pin of the integrated chip U36 1, the T2, the T36, One end of the capacitor C3, the negative electrode of the voltage stabilizing diode D1, the D pole of the MOS transistor Q1, the D pole of the MOS transistor Q2, one end of the resistor R2, one end of the thermistor RT1 and the other end of the resistor R1 are connected, the 5 th pin of the integrated chip U1 is connected with the other end of the capacitor C5, the 6 th pin of the integrated chip U1 is connected with the other end of the capacitor C4, the other end of the thermistor RT1, the other end of the resistor R4 and one end of the resistor R5, and the integrated chip U1 is an NE 555-type time-base integrated circuit.
further, the MOS transistor Q1 is a PNP type MOS transistor, and the MOS transistor Q2 is a PNP type MOS transistor.
further, the resistance value of the resistor R1 is 150 Ω; the resistance values of the resistor R2, the resistor R3, the resistor R4 and the resistor R5 are all 1k omega; the potentiometer RV1 is a linear potentiometer; the thermistor RT1 is a negative temperature coefficient thermistor.
further, the capacitance values of the capacitor C3 and the capacitor C4 are both 100 pF.
The utility model has the advantages that: the temperature in the region can be regulated and controlled in real time while the external temperature is detected, the design is simple, the safety degree is high, and the application range is wide.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
fig. 1 is a circuit diagram of an air conditioner duct temperature sensor according to an embodiment of the present invention.
Detailed Description
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
according to the utility model discloses an embodiment provides an air conditioner tuber pipe temperature sensor.
As shown in fig. 1, the air conditioner air duct temperature sensor according to the embodiment of the present invention comprises a power circuit unit, a temperature detection unit and a temperature control unit;
The output end of the power supply circuit unit is connected with the input end of the temperature detection unit, and the output end of the temperature detection unit is connected with the input end of the temperature control unit;
The power supply circuit unit comprises an integrated chip U3, a transformer TR1, a rectifier bridge stack BR1, a capacitor C1, a capacitor C2 and a resistor R1;
the transformer TR1 is connected with a power supply voltage through a 1 st pin, the transformer TR1 is connected with the power supply voltage through a 2 nd pin, the transformer TR1 is connected with a terminal a of the rectifier bridge BR1 through a 3 rd pin, the transformer TR1 is connected with a terminal b of the rectifier bridge BR1 through a 4 th pin, a terminal C of the rectifier bridge BR1 is connected with one end of the capacitor C1, the 2 nd pin of the integrated chip U3 and one end of the capacitor C2 are all grounded, the rectifier bridge BR1 is respectively connected with the other end of the capacitor C1 and the 1 st pin of the integrated chip U3 through a terminal d, and the integrated chip U3 is respectively connected with the other end of the capacitor C2 and one end of the resistor R1 through a 3 rd pin;
the temperature detection unit comprises a thermistor RT1, a potentiometer RV1, a capacitor C3, a resistor R2, a resistor R3, a resistor R4, a resistor R5, an MOS tube Q1, an MOS tube Q2 and a voltage stabilizing diode D1;
one end of the capacitor C3 is connected to the negative electrode of the zener diode D1, the D electrode of the MOS transistor Q1, the D electrode of the MOS transistor Q2, one end of the resistor R2, one end of the thermistor RT1, and the other end of the resistor R1, the other end of the capacitor C3 is connected to the positive electrode of the zener diode D1, one end of the resistor R3, one end of the resistor R4, and one end of the potentiometer RV1, the MOS transistor Q1 is connected to the S electrode of the MOS transistor Q2 through the S electrode, the MOS transistor Q1 is connected to the G electrode of the MOS transistor Q2, the other end of the resistor R2, and one end of the resistor R3 through the G electrode, the other end of the thermistor RT1 is connected to the other end of the resistor R4 and one end of the resistor R5, and the other end of the resistor R5 is connected to the other end of the potentiometer R1;
The temperature control unit comprises an integrated chip U1, a capacitor C4, a capacitor C5, a bidirectional thyristor U2, a diode D2 and a relay RL 1;
A 1 st pin of the integrated chip U1 is connected to one end of the capacitor C4, one end of the capacitor C5, a T1 pole of the triac U2, an anode of the diode D2, one end of the relay RL1, the other end of the capacitor C3, an anode of the zener diode D1, one end of the resistor R3, one end of the resistor R4 and one end of the potentiometer RV1, and the integrated chip U1 is connected to the other end of the resistor R5 and the other end of the potentiometer RV1 through a 2 nd pin, and the integrated chip U1 is connected to the other end of the relay RL1, a cathode of the diode D2, a G pole of the triac U2, an S pole of the MOS tube Q1 and an S pole of the MOS Q2 through a 3 rd pin, and the integrated chip U1 is connected to a 8 th pin of the integrated chip U1, a T2 pole of the triac U368747, and a T2 pole of the triac U2 through a 4 th pin, One end of the capacitor C3, the negative electrode of the voltage stabilizing diode D1, the D pole of the MOS transistor Q1, the D pole of the MOS transistor Q2, one end of the resistor R2, one end of the thermistor RT1 and the other end of the resistor R1 are connected, the integrated chip U1 is connected with the other end of the capacitor C5 through a 5 th pin, and the integrated chip U1 is connected with the other end of the capacitor C4, the other end of the thermistor RT1, the other end of the resistor R4 and one end of the resistor R5 through a 6 th pin.
in one embodiment, the ic U3 is a three-terminal integrated regulator model 7089.
In one embodiment, the resistance value of the resistor R1 is 150 Ω; the resistance values of the resistor R2, the resistor R3, the resistor R4 and the resistor R5 are all 1k omega; the potentiometer RV1 is a linear potentiometer; the thermistor RT1 is a negative temperature coefficient thermistor.
In one embodiment, the MOS transistor Q1 is a PNP type MOS transistor, and the MOS transistor Q2 is a PNP type MOS transistor.
In one embodiment, the integrated chip U1 is an NE555 time base integrated circuit.
In one embodiment, the capacitance values of the capacitor C3 and the capacitor C4 are both 100 pF.
The working principle is as follows: the integrated chip U3, the transformer TR1, the rectifier bridge stack BR1, the capacitor C1, the capacitor C2 and the resistor R1 form a power circuit unit; the transformer TR1 is used for reducing the 220V power supply voltage; the rectifier bridge stack BR1 is used for rectifying the voltage after voltage reduction; the capacitor C1 and the capacitor C2 are used for filtering; the integrated chip U3 is used for voltage stabilization and providing working voltage for the temperature detection unit.
a temperature detection unit consists of a thermistor RT1, a potentiometer RV1, a capacitor C3, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a MOS tube Q1, a MOS tube Q2 and a voltage-stabilizing diode D1; the capacitor C3 and the voltage stabilizing diode D1 are used for voltage stabilization; the potentiometer RV1 is used for setting a control temperature and providing a detection temperature range; the thermistor RT1 is used for detecting the outside temperature, changing the resistance value along with the change of the outside temperature and outputting different voltage signals.
The integrated chip U1, the capacitor C4, the capacitor C5, the bidirectional thyristor U2, the diode D2 and the relay RL1 form a temperature control unit; the MOS tube Q1 and the MOS tube Q2 are cut off when the alternating current power supply voltage is close to zero and the voltage between the two anodes of the bidirectional thyristor U2 is zero, and are saturated to be conducted when the voltage between the two anodes of the bidirectional thyristor U2 is higher, and the bidirectional thyristor U2 is forbidden to be triggered to be conducted; the triac U2 is turned on when receiving the high level output by the IC U1, and the triac U2 is turned off when receiving the low level output by the IC U1; the relay RL1 is electrified and attracted when the bidirectional thyristor U2 is switched on, and the relay RL1 is switched off and released when the bidirectional thyristor U2 is switched off.
To sum up, with the help of the above technical scheme of the utility model, through designing air conditioner tuber pipe temperature sensor, through increasing temperature control circuit, realized temperature sensor controlled temperature's function, can be when detecting ambient temperature, regulate and control air conditioner tuber pipe temperature in real time, the design is simple, and the degree of safety is high, and application range is very wide.
the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The air conditioner air pipe temperature sensor is characterized by comprising a power circuit unit, a temperature detection unit and a temperature control unit;
The output end of the power supply circuit unit is connected with the input end of the temperature detection unit, and the output end of the temperature detection unit is connected with the input end of the temperature control unit;
The power supply circuit unit comprises an integrated chip U3, a transformer TR1, a rectifier bridge stack BR1, a capacitor C1, a capacitor C2 and a resistor R1;
a 1 st pin of the transformer TR1 is connected with a power supply voltage, a 2 nd pin of the transformer TR1 is connected with the power supply voltage, a 3 rd pin of the transformer TR1 is connected with a terminal a of the rectifier bridge stack BR1, a 4 th pin of the transformer TR1 is connected with a terminal b of the rectifier bridge stack BR1, a C terminal of the rectifier bridge stack BR1 is grounded with one end of the capacitor C1, the 2 nd pin of the integrated chip U3 and one end of the capacitor C2, a d terminal of the rectifier bridge stack BR1 is connected with the other end of the capacitor C1 and the 1 st pin of the integrated chip U3 respectively, and a 3 rd pin of the integrated chip U3 is connected with the other end of the capacitor C2 and one end of the resistor R1 respectively;
The temperature detection unit comprises a thermistor RT1, a potentiometer RV1, a capacitor C3, a resistor R2, a resistor R3, a resistor R4, a resistor R5, an MOS tube Q1, an MOS tube Q2 and a voltage stabilizing diode D1;
One end of the capacitor C3 is connected to the negative electrode of the zener diode D1, the D electrode of the MOS transistor Q1, the D electrode of the MOS transistor Q2, one end of the resistor R2, one end of the thermistor RT1, and the other end of the resistor R1, the other end of the capacitor C3 is connected to the positive electrode of the zener diode D1, one end of the resistor R3, one end of the resistor R4, and one end of the potentiometer RV1, the S electrode of the MOS transistor Q1 is connected to the S electrode of the MOS transistor Q2, the G electrode of the MOS transistor Q1 is connected to the G electrode of the MOS transistor Q2, the other end of the resistor R2, and one end of the resistor R3, the other end of the thermistor RT1 is connected to the other end of the resistor R4 and one end of the resistor R5, and the other end of the resistor R5 is connected to the other end of the potentiometer R1;
The temperature control unit comprises an integrated chip U1, a capacitor C4, a capacitor C5, a bidirectional thyristor U2, a diode D2 and a relay RL 1;
a 1 st pin of the integrated chip U1 is connected to one end of the capacitor C4, one end of the capacitor C5, a T1 pole of the triac U2, an anode of the diode D2, one end of the relay RL1, the other end of the capacitor C3, an anode of the zener diode D1, one end of the resistor R3, one end of the resistor R4 and one end of the potentiometer RV1, and the 2 nd pin of the integrated chip U1 is connected to the other end of the resistor R5 and the other end of the potentiometer RV1, and the 3 rd pin, the G pole of the triac U2, the S pole of the MOS transistor Q1 and the S pole of the MOS transistor Q2 are connected to the other end of the relay RL1, the cathode of the diode D2, the G pole of the triac U2, the S pole of the MOS transistor Q1 and the S pole of the MOS transistor Q2, and the 4 th pin of the integrated chip U1 is connected to the 8 th pin of the integrated chip U36 1, the T2, the T36, One end of the capacitor C3, the negative electrode of the voltage stabilizing diode D1, the D pole of the MOS transistor Q1, the D pole of the MOS transistor Q2, one end of the resistor R2, one end of the thermistor RT1 and the other end of the resistor R1 are connected, the 5 th pin of the integrated chip U1 is respectively connected with the other end of the capacitor C5, and the 6 th pin of the integrated chip U1 is respectively connected with the other end of the capacitor C4, the other end of the thermistor RT1, the other end of the resistor R4 and one end of the resistor R5.
2. The air conditioner duct temperature sensor of claim 1, wherein the integrated chip U3 is a 7089 type three terminal integrated regulator.
3. the air conditioner duct temperature sensor according to claim 1, wherein the resistance value of the resistor R1 is 150 Ω; the resistance values of the resistor R2, the resistor R3, the resistor R4 and the resistor R5 are all 1k omega; the potentiometer RV1 is a linear potentiometer; the thermistor RT1 is a negative temperature coefficient thermistor.
4. the air conditioner air duct temperature sensor according to claim 1, wherein the MOS transistor Q1 is a PNP type MOS transistor, and the MOS transistor Q2 is a PNP type MOS transistor.
5. the air conditioner duct temperature sensor according to claim 1, wherein the integrated chip U1 is an NE555 type time base integrated circuit.
6. An air conditioner duct temperature sensor according to claim 1, wherein the capacitance values of said capacitor C3 and said capacitor C4 are both 100 pF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920223461.3U CN209782930U (en) | 2019-02-22 | 2019-02-22 | air-conditioning air pipe temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920223461.3U CN209782930U (en) | 2019-02-22 | 2019-02-22 | air-conditioning air pipe temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209782930U true CN209782930U (en) | 2019-12-13 |
Family
ID=68795365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920223461.3U Expired - Fee Related CN209782930U (en) | 2019-02-22 | 2019-02-22 | air-conditioning air pipe temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209782930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115031793A (en) * | 2022-08-11 | 2022-09-09 | 成都国光电子仪表有限责任公司 | Bus digital flow metering system |
-
2019
- 2019-02-22 CN CN201920223461.3U patent/CN209782930U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115031793A (en) * | 2022-08-11 | 2022-09-09 | 成都国光电子仪表有限责任公司 | Bus digital flow metering system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206041465U (en) | Take switching power supply circuit of excess temperature protection | |
| CN103199717B (en) | bridge rectifier applied to PFC power converter | |
| US6735064B2 (en) | Inrush current suppressing device | |
| CN209782930U (en) | air-conditioning air pipe temperature sensor | |
| CN102751700A (en) | Over-temperature protection circuit | |
| CN206041466U (en) | Take switching power supply circuit of excess temperature protection | |
| CN110275566A (en) | Voltage regulator | |
| CN201611361U (en) | Overcurrent detecting circuit | |
| CN105553453B (en) | A kind of automatically controlled temperature switch circuit | |
| CN106936302A (en) | Electronic circuit and the method for operating electronic circuit | |
| CN203690888U (en) | Electric leakage protection plug | |
| CN205176686U (en) | Temperature -control circuit based on thermistor design | |
| CN204535873U (en) | A kind of low-cost and high-precision thermometer | |
| CN105004900B (en) | Supply voltage monitoring circuit and electronic circuit with the supply voltage monitoring circuit | |
| CN208258144U (en) | A kind of positive alternating current sampling circuit altogether with output voltage clamper | |
| CN214707562U (en) | Power adapter | |
| CN214707141U (en) | Power adapter | |
| CN208571577U (en) | Thermal-shutdown circuit | |
| CN206788673U (en) | A kind of Simple constant-temperature control circuit | |
| CN208142830U (en) | A kind of the overcurrent sample circuit and protection circuit of inhibition temperature drift | |
| CN204423199U (en) | A kind of multipurpose electronic temperature detection gauge tap | |
| US4641132A (en) | Condition-responsive switching circuit | |
| CN208537614U (en) | Current detection means | |
| CN206819187U (en) | A kind of control circuit of automatic constant-temperature | |
| CN205490462U (en) | Automatically controlled temperature detect switch circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 Termination date: 20210222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |