CN219715994U - Control circuit of temperature controller - Google Patents
Control circuit of temperature controller Download PDFInfo
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- CN219715994U CN219715994U CN202321273157.2U CN202321273157U CN219715994U CN 219715994 U CN219715994 U CN 219715994U CN 202321273157 U CN202321273157 U CN 202321273157U CN 219715994 U CN219715994 U CN 219715994U
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- 230000008054 signal transmission Effects 0.000 claims abstract description 9
- 230000010354 integration Effects 0.000 claims abstract description 6
- 239000003990 capacitor Substances 0.000 claims description 9
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 230000003287 optical effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of temperature controllers, in particular to a control circuit of a temperature controller, which comprises a power supply loop, a channel switching loop, a signal transmission loop and a control loop, wherein when a 1 pin and a 2 pin of a wiring terminal CN1 are connected with a floor sensor, after being acquired and converted by a 4 pin of a single-chip analog and digital control circuit U1, a 5 pin of the single-chip analog and digital control circuit U1 can send corresponding electric signals to a 1 pin of a control relay RL1, the 4 pin and the 5 pin of the wiring terminal CN1 are controlled to be communicated, and then an external circuit is controlled to realize a heating function, when a 220V sine wave signal is detected on a 3 pin of the wiring terminal CN1, the electric signals are transmitted to a 3 pin of the single-chip analog and digital control circuit U1 through an optical coupler U2, and the temperature controller enters a low-temperature control state, so that the problem that the existing temperature controller is easy to work abnormally due to scattered power supply circuits, low integration level and unstable output voltage is solved.
Description
Technical Field
The utility model relates to the technical field of temperature controllers, in particular to a control circuit of a temperature controller.
Background
The temperature controller is widely applied to temperature control of family rooms, business places, industrial areas and the like, and is used for controlling actuators such as heating cables to send signals through programs, responding to operation and setting of users, achieving the functions of heating, temperature control and the like, and creating a comfortable environment. The utility model provides a temperature controller, which comprises an outer shell, a temperature measuring rod, a circuit board and keys, wherein the circuit board is arranged in the shell, one end of the temperature measuring rod is communicated with the circuit board, and the other end of the temperature measuring rod is arranged outside the shell; the key is arranged on the upper end face of the shell and is communicated with the circuit board; the circuit board is provided with a time relay, and the circuit board realizes stable control of temperature through the change of the output power of the time relay control circuit; the circuit board realizes stable control of temperature through the change of the output power of the time relay control circuit.
However, the temperature controller in the current market has low integration level due to scattered power supply circuits, unstable output voltage, and easy abnormal working condition when the temperature controller is in a control circuit.
Disclosure of Invention
Therefore, the utility model aims to provide a control circuit of a temperature controller, which solves the problems that the existing temperature controller is easy to work abnormally due to the fact that a power circuit is scattered, the integration level is low, and the output voltage is unstable.
Based on the above object, the present utility model provides a control circuit of a temperature controller, including a power supply loop, a path switching loop, a signal transmission loop and a control loop, where the power supply loop includes a connection terminal CN1, a piezoresistor RZ, an AC-DC integrated module G1 and a diode D5, 7 pins of the connection terminal CN1, 4 pins of the AC-DC integrated module G1, 2 pins of the connection terminal CN1 are in signal connection with 4 pins of the AC-DC integrated module G1, 5 pins and 7 pins of the connection terminal CN1 are respectively connected with 1 pin and 2 pin of the AC-DC integrated module G1, 6 pins and 7 pins of the connection terminal CN1 are connected with each other, the piezoresistor RZ is connected in parallel with 5 pins and 7 pins of the connection terminal CN1, and two ends of the diode D5 are respectively connected with 3 pins and 4 pins of the AC-DC integrated module G1;
the path switching loop comprises 4 pins of the relay RL1 and a diode D2, wherein the 2 pin of the relay RL1 is connected with the 3 pin of the AC-DC integrated module G1, two ends of the diode D2 are respectively connected with the 1 pin and the 2 pin of the relay RL1, and the 3 pin and the 4 pin of the relay RL1 are respectively connected with the 5 pin and the 4 pin of the wiring terminal CN 1;
the signal transmission loop comprises a resistor R1, an optocoupler U2, a diode D3 and a capacitor C1, wherein 4 pins of the optocoupler U2 are connected with a 3 pin of a wiring terminal CN1, the resistor R1 is connected in series between the 3 pin of the wiring terminal CN1 and the 1 pin of the optocoupler U2, a 2 pin of the optocoupler U2 is connected with a 7 pin of the wiring terminal CN1, the diode D3 is connected in series between the 7 pin of the wiring terminal CN1 and the 2 pin of the optocoupler U2, and two ends of the capacitor C1 are respectively connected with the 3 pin and the 4 pin of the optocoupler U2;
the control circuit is a single-chip analog and digital control circuit U1, 5 pins of the single-chip analog and digital control circuit U1 are provided, 1 pin of the single-chip analog and digital control circuit U1 is connected with 3 pins of the AC-DC integrated module G1, 2 pins of the single-chip analog and digital control circuit U1 are connected with 2 pins of the wiring terminal CN1, 3 pins of the single-chip analog and digital control circuit U1 are connected with 4 pins of the optocoupler U2, 4 pins of the single-chip analog and digital control circuit U1 are connected with 1 pin of the wiring terminal CN1, and 5 pins of the single-chip analog and digital control circuit U1 are connected with 1 pin of the relay RL 1.
Preferably, the anode of the diode D5 is connected to the 4 pin of the AC-DC integrated module G1, the cathode of the diode is connected to the 3 pin of the AC-DC integrated module G1, and the diode D5 is of the SMBJ15A type.
Preferably, the positive electrode of the diode D2 is connected to the 1 pin of the relay RL1, the negative electrode of the diode D2 is connected to the 2 pin of the relay RL1, and the diode D2 is 1N4148 (LL 48) type.
Preferably, the positive electrode of the diode D3 is connected with the 2 pin of the optocoupler U2, the negative electrode of the diode D3 is connected with the 7 pin of the CN1, and the diode D3 is of the G1M-SOD-123FL type.
Preferably, the relay RL1 is of the type QY32F-T-012DC-HS 12.
Preferably, the AC-DC integration module G1 includes a housing assembly and a PCBA disposed inside the housing assembly.
Preferably, the capacitor C1 is of the type 0603-104K-50V.
The utility model has the beneficial effects that: the alternating current is connected into a wiring terminal CN1, the voltage dependent resistor RZ protected by transient overvoltage is connected to an AC-DC integrated module G1, the alternating current is converted into direct current 12V, surge and voltage clamping are absorbed by a diode D5, then the direct current is supplied to a single-chip analog and digital control circuit U1, when the 1 pin and the 2 pin of the wiring terminal CN1 are connected into a floor sensor, after the 4 pin of the single-chip analog and digital control circuit U1 is acquired and converted, the 5 pin of the single-chip analog and digital control circuit U1 can send corresponding electric signals to the 1 pin of a control relay RL1, the 4 pin and the 5 pin of the wiring terminal CN1 are controlled to be connected, and then an external circuit is controlled to realize a heating function, when a 220V sine wave signal is detected on the 3 pin of the wiring terminal CN1, the electric signals are transmitted to the 3 pin of the single-chip analog and digital control circuit U1 through an optical coupler U2, and the temperature controller enters a low-temperature control state.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only of the utility model and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of the present utility model;
FIG. 2 is a schematic circuit diagram of a power supply circuit according to an embodiment of the utility model;
FIG. 3 is a schematic circuit diagram of a circuit switching loop according to an embodiment of the present utility model;
FIG. 4 is a schematic circuit diagram of a signal transmission circuit according to an embodiment of the utility model;
FIG. 5 is a schematic circuit diagram of a control loop according to an embodiment of the present utility model;
fig. 6 is a schematic structural diagram of an AC-DC integrated module G1 according to an embodiment of the utility model.
Marked in the figure as:
1. a power supply loop; 2. a path switching circuit; 3. a signal transmission loop; 4. a control loop; 5. a housing assembly; 6. PCBA.
Detailed Description
The present utility model will be further described in detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present utility model more apparent.
It is to be noted that unless otherwise defined, technical or scientific terms used herein should be taken in a general sense as understood by one of ordinary skill in the art to which the present utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
As shown in fig. 1 to 6, a control circuit of a temperature controller includes a power supply loop 1, a path switching loop 2, a signal transmission loop 3 and a control loop 4, wherein the power supply loop 1 includes a connection terminal CN1, a piezoresistor RZ, an AC-DC integrated module G1 and a diode D5, 7 pins of the connection terminal CN1 are provided, 4 pins of the AC-DC integrated module G1 are provided, 2 pins of the connection terminal CN1 are in signal connection with 4 pins of the AC-DC integrated module G1, 5 pins and 7 pins of the connection terminal CN1 are respectively connected with 1 pin and 2 pin of the AC-DC integrated module G1, 6 pins and 7 pins of the connection terminal CN1 are connected with 5 pins and 7 pins of the connection terminal CN1, and two ends of the diode D5 are respectively connected with 3 pins and 4 pins of the AC-DC integrated module G1;
the path switching loop 2 comprises 4 pins of the relay RL1 and a diode D2, wherein the 2 pin of the relay RL1 is connected with the 3 pin of the AC-DC integrated module G1, two ends of the diode D2 are respectively connected with the 1 pin and the 2 pin of the relay RL1, and the 3 pin and the 4 pin of the relay RL1 are respectively connected with the 5 pin and the 4 pin of the wiring terminal CN 1;
the signal transmission loop 3 comprises a resistor R1, an optocoupler U2, a diode D3 and a capacitor C1, wherein 4 pins of the optocoupler U2 are connected with a 3 pin of a wiring terminal CN1, the resistor R1 is connected in series between the 3 pin of the wiring terminal CN1 and the 1 pin of the optocoupler U2, a 2 pin of the optocoupler U2 is connected with a 7 pin of the wiring terminal CN1, the diode D3 is connected in series between the 7 pin of the wiring terminal CN1 and the 2 pin of the optocoupler U2, and two ends of the capacitor C1 are respectively connected with the 3 pin and the 4 pin of the optocoupler U2;
the control circuit 4 is a single-chip analog and digital control circuit U1, 5 pins of the single-chip analog and digital control circuit U1 are provided, 1 pin of the single-chip analog and digital control circuit U1 is connected with 3 pins of the AC-DC integrated module G1, 2 pins of the single-chip analog and digital control circuit U1 are connected with 2 pins of the connecting terminal CN1, 3 pins of the single-chip analog and digital control circuit U1 are connected with 4 pins of the optical coupler U2, 4 pins of the single-chip analog and digital control circuit U1 are connected with 1 pin of the connecting terminal CN1, and 5 pins of the single-chip analog and digital control circuit U1 are connected with 1 pin of the relay RL 1.
For example, the alternating current is connected to the wiring terminal CN1, the voltage dependent resistor RZ protected by transient overvoltage is connected to the AC-DC integrated module G1, the alternating current is converted into direct current 12V, the surge and the voltage clamp are absorbed by the diode D5, then the power is supplied to the single-chip analog and digital control circuit U1, when the 1 pin and the 2 pin of the wiring terminal CN1 are connected to the floor sensor, after the 4 pin of the single-chip analog and digital control circuit U1 is collected and converted, the 5 pin of the single-chip analog and digital control circuit U1 can send corresponding electric signals to the 1 pin of the control relay RL1, the 4 pin and the 5 pin of the control wiring terminal CN1 are connected, and then the external circuit is controlled to realize the heating function, when the 220V sine wave signal is detected on the 3 pin of the wiring terminal CN1, the electric signals are transmitted to the 3 pin of the single-chip analog and digital control circuit U1 through the optocoupler U2, and enter the low-temperature control state.
As an alternative embodiment, the anode of the diode D5 is connected to the 4 pin of the AC-DC integrated module G1, the cathode of the diode is connected to the 3 pin of the AC-DC integrated module G1, and the diode D5 is of the SMBJ15A type.
As an alternative embodiment, the anode of the diode D2 is connected to the 1 pin of the relay RL1, the cathode of the diode D2 is connected to the 2 pin of the relay RL1, and the diode D2 is of the 1N4148 (LL 48) type.
As an alternative embodiment, the anode of the diode D3 is connected to the 2 pin of the optocoupler U2, the cathode of the diode D3 is connected to the 7 pin of the CN1, and the diode D3 is of the G1M-SOD-123FL type.
As an alternative embodiment, the relay RL1 is of the type QY32F-T-012DC-HS 12.
As an alternative embodiment, the AC-DC integration module G1 includes a housing assembly 5 and a PCBA6, and the PCBA6 is disposed inside the housing assembly 5.
As an alternative embodiment, the capacitor C1 is of the type 0603-104K-50V.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the utility model (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the utility model, the steps may be implemented in any order and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity.
The present utility model is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present utility model should be included in the scope of the present utility model.
Claims (7)
1. The control circuit of the temperature controller comprises a power supply loop (1), a path switching loop (2), a signal transmission loop (3) and a control loop (4), and is characterized in that the power supply loop (1) comprises a wiring terminal CN1, piezoresistors RZ, an AC-DC integrated module G1 and diodes D5, 7 pins of the wiring terminal CN1 are provided, 4 pins of the AC-DC integrated module G1 are provided, 2 pins of the wiring terminal CN1 are in signal connection with 4 pins of the AC-DC integrated module G1, 5 pins and 7 pins of the wiring terminal CN1 are respectively connected with 1 pin and 2 pins of the AC-DC integrated module G1, 6 pins and 7 pins of the wiring terminal CN1 are connected, the piezoresistors RZ are connected in parallel with 5 pins and 7 pins of the wiring terminal CN1, and two ends of the diode D5 are respectively connected with 3 pins and 4 pins of the AC-DC integrated module G1;
the path switching loop (2) comprises a relay RL1 and diodes D2, wherein 4 pins of the relay RL1 are provided, a 2 pin of the relay RL1 is connected with a 3 pin of the AC-DC integrated module G1, two ends of the diode D2 are respectively connected with a 1 pin and a 2 pin of the relay RL1, and the 3 pin and the 4 pin of the relay RL1 are respectively connected with a 5 pin and a 4 pin of the wiring terminal CN 1;
the signal transmission loop (3) comprises a resistor R1, an optocoupler U2, a diode D3 and a capacitor C1, wherein 4 pins of the optocoupler U2 are provided, a 1 pin of the optocoupler U2 is connected with a 3 pin of a wiring terminal CN1, the resistor R1 is connected in series between the 3 pin of the wiring terminal CN1 and the 1 pin of the optocoupler U2, a 2 pin of the optocoupler U2 is connected with a 7 pin of the wiring terminal CN1, the diode D3 is connected in series between the 7 pin of the wiring terminal CN1 and the 2 pin of the optocoupler U2, and two ends of the capacitor C1 are respectively connected with the 3 pin and the 4 pin of the optocoupler U2;
the control loop (4) is a single-chip analog and digital control circuit U1, 5 pins of the single-chip analog and digital control circuit U1 are connected with 3 pins of the AC-DC integrated module G1, 2 pins of the single-chip analog and digital control circuit U1 are connected with 2 pins of the connecting terminal CN1, 3 pins of the single-chip analog and digital control circuit U1 are connected with 4 pins of the optocoupler U2, 4 pins of the single-chip analog and digital control circuit U1 are connected with 1 pin of the connecting terminal CN1, and 5 pins of the single-chip analog and digital control circuit U1 are connected with 1 pin of the relay RL 1.
2. The control circuit of a thermostat according to claim 1, wherein the anode of the diode D5 is connected to the 4 pin of the AC-DC integrated module G1, the cathode of the diode is connected to the 3 pin of the AC-DC integrated module G1, and the diode D5 is of the SMBJ15A type.
3. The control circuit of a thermostat according to claim 1, wherein the positive electrode of the diode D2 is connected to the 1 pin of the relay RL1, the negative electrode of the diode D2 is connected to the 2 pin of the relay RL1, and the diode D2 is 1N4148 (LL 48) type.
4. The control circuit of a thermostat according to claim 1, wherein an anode of the diode D3 is connected to a 2 pin of the optocoupler U2, a cathode of the diode D3 is connected to a 7 pin of the CN1, and the diode D3 is of a G1M-SOD-123FL type.
5. A control circuit for a thermostat according to claim 1 wherein the relay RL1 is of the QY32F-T-012DC-HS12 type.
6. A control circuit of a thermostat according to claim 1, characterized in that the AC-DC integration module G1 comprises a housing assembly (5) and a PCBA (6), the PCBA (6) being arranged inside the housing assembly (5).
7. A control circuit for a thermostat according to claim 1 wherein the capacitor C1 is model 0603-104K-50V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321273157.2U CN219715994U (en) | 2023-05-24 | 2023-05-24 | Control circuit of temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321273157.2U CN219715994U (en) | 2023-05-24 | 2023-05-24 | Control circuit of temperature controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219715994U true CN219715994U (en) | 2023-09-19 |
Family
ID=87980756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321273157.2U Active CN219715994U (en) | 2023-05-24 | 2023-05-24 | Control circuit of temperature controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219715994U (en) |
-
2023
- 2023-05-24 CN CN202321273157.2U patent/CN219715994U/en active Active
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