CN215498773U - Integrated zero-power-consumption refrigerator starter circuit with adjustable starting overload protection power - Google Patents
Integrated zero-power-consumption refrigerator starter circuit with adjustable starting overload protection power Download PDFInfo
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- CN215498773U CN215498773U CN202121462696.1U CN202121462696U CN215498773U CN 215498773 U CN215498773 U CN 215498773U CN 202121462696 U CN202121462696 U CN 202121462696U CN 215498773 U CN215498773 U CN 215498773U
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Abstract
The utility model is suitable for the field of refrigerator starters, and provides a zero-power-consumption refrigerator starter circuit with adjustable integrated starting overload protection power, which comprises a bidirectional thyristor TR1, a relay RY1, a thermistor PTC1, a refrigerator compressor unit, a main control unit and a resistor R5 and aims to solve the technical problems that the refrigerator starter in the prior art does not have a refrigerator starter integrating a zero-power-consumption function and MCU intelligent control, the running power of a compressor cannot be adjusted, and in addition, the cost of an overload protector is high, so that the price of the refrigerator starter is increased.
Description
Technical Field
The utility model belongs to the field of refrigerator starters, and particularly relates to a zero-power-consumption refrigerator starter circuit with adjustable integrated starting overload protection power.
Background
At present, common refrigerator starter on the market adopts single chip microcomputer control, can realize PTC starting circuit, but can not solve the control of refrigerator compressor running power, still adopt expensive overload protection ware in overload protection function, do not have the refrigerator starter of integrated zero-power consumption function and MCU intelligent control moreover now to still can not realize adjusting the running power of compressor, overload protection ware is with high costs in addition, leads to the refrigerator starter price to uprise.
Disclosure of Invention
The utility model aims to provide a zero-power-consumption refrigerator starter circuit with adjustable integrated starting overload protection power, and aims to solve the technical problems that in the prior art, a refrigerator starter does not have a refrigerator starter integrating a zero-power-consumption function and MCU intelligent control, the running power of a compressor cannot be adjusted, and in addition, an overload protector is high in cost, so that the price of the refrigerator starter is high.
The utility model is realized in this way, a zero power consumption refrigerator starter circuit with adjustable integrated starting overload protection power is characterized in that: zero-power refrigerator starter circuit includes triac TR1, relay RY1, thermistor PTC1, refrigerator compressor unit, main control unit and resistance R5, triac TR 1's T2 end is connected power AC one end, T1 end and is connected the main control unit relay PY 1's 3 ends and refrigerator compressor unit, control pole T3 end connection main control unit, relay RY 1's 4 end is connected thermistor PTC1 one end, 1, 2 end all connect the main control unit, the other end of thermistor PTC1 is connected the refrigerator compressor unit, the refrigerator compressor unit is connected power AC other end and resistance R5's one end respectively, the resistance R5 other end is connected the main control unit, refrigerator compressor unit and GND respectively.
The further technical scheme of the utility model is as follows: the main control unit comprises a processor MCU, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a triode T1, a triode T2 and a diode D1, wherein a pin A0 of the processor MCU is connected with a base electrode of the triode T1 through the resistor R3, a collector electrode of the triode T1 is respectively connected with a control electrode T3 end of the bidirectional triode TR1, one end of the resistor R1 and one end of the capacitor C1 through a resistor R2, the other end of the resistor R1 and the other end of the capacitor C1 are both connected with a1 end of the bidirectional triode TR1, a pin A1 of the processor MCU is connected with a base electrode of the triode T2 through the resistor R4, a collector electrode of the triode T2 is respectively connected with an anode of the diode D1 and a 2 end of the relay PY1, a cathode of the diode D1 is connected with a1 end of the PY1, and a power supply pin A3 and one end of the other end of the MCU 5 are respectively connected with an AC 5, the other end of the resistor R5, the emitter of the transistor T1 and the emitter of the transistor T2 are all connected to GND.
The further technical scheme of the utility model is as follows: the refrigerator compressor unit comprises a compressor M and an operating capacitor CF1, wherein the 1 end of the compressor M is connected with the other end of the resistor R5, the 2 end of the compressor M is respectively connected with one end of the operating capacitor CF1, the 1 end and the 3 end of the bidirectional controllable silicon TR1 are respectively connected with the other end of the thermistor PTC1 and the other end of the operating capacitor CF 1.
The further technical scheme of the utility model is as follows: the zero-power-consumption refrigerator starter circuit further comprises a FUSE FUSE, wherein a1 end of the FUSE FUSE is connected with the other end of the power supply AC, and a 2 end of the FUSE FUSE is respectively connected with an A3 pin of the processor MCU and one end of the resistor R5.
The further technical scheme of the utility model is as follows: the thermistor PTC1 is a positive temperature coefficient thermistor.
The utility model has the beneficial effects that: this kind of zero power consumption refrigerator starter circuit passes through treater MCU control relay RY1 turn-off state, realize starting circuit zero power consumption, adjust bidirectional thyristor TR1 conduction angle through treater MCU, can control compressor M's operating power, through treater MCU detection resistance R5 both ends pressure drop, judge compressor M operating current, prevent the overpower phenomenon from appearing, this kind of zero power consumption refrigerator starter circuit simple structure in addition, the cost of manufacture is low, the working property is stable.
Drawings
Fig. 1 is an electrical schematic diagram of a zero-power-consumption refrigerator starter circuit with adjustable integrated start overload protection power according to an embodiment of the present invention.
Detailed Description
Fig. 1 shows a zero-power-consumption refrigerator starter circuit with adjustable integrated starting overload protection power, which is provided by the utility model and is characterized in that: zero-power refrigerator starter circuit includes triac TR1, relay RY1, thermistor PTC1, refrigerator compressor unit, main control unit and resistance R5, triac TR 1's T2 end is connected power AC one end, T1 end and is connected the main control unit relay PY 1's 3 ends and refrigerator compressor unit, control pole T3 end connection main control unit, relay RY 1's 4 end is connected thermistor PTC1 one end, 1, 2 end all connect the main control unit, the other end of thermistor PTC1 is connected the refrigerator compressor unit, the refrigerator compressor unit is connected power AC other end and resistance R5's one end respectively, the resistance R5 other end is connected the main control unit, refrigerator compressor unit and GND respectively. The thermistor PTC1 is a positive temperature coefficient thermistor.
The main control unit comprises a processor MCU, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a triode T1, a triode T2 and a diode D1, wherein a pin A0 of the processor MCU is connected with a base electrode of the triode T1 through the resistor R3, a collector electrode of the triode T1 is respectively connected with a control electrode T3 end of the bidirectional triode TR1, one end of the resistor R1 and one end of the capacitor C1 through a resistor R2, the other end of the resistor R1 and the other end of the capacitor C1 are both connected with a1 end of the bidirectional triode TR1, a pin A1 of the processor MCU is connected with a base electrode of the triode T2 through the resistor R4, a collector electrode of the triode T2 is respectively connected with an anode of the diode D1 and a 2 end of the relay PY1, a cathode of the diode D1 is connected with a1 end of the PY1, and a power supply pin A3 and one end of the other end of the MCU 5 are respectively connected with an AC 5, the other end of the resistor R5, the emitter of the transistor T1 and the emitter of the transistor T2 are all connected to GND.
The refrigerator compressor unit comprises a compressor M and an operating capacitor CF1, wherein the 1 end of the compressor M is connected with the other end of the resistor R5, the 2 end of the compressor M is respectively connected with one end of the operating capacitor CF1, the 1 end and the 3 end of the bidirectional controllable silicon TR1 are respectively connected with the other end of the thermistor PTC1 and the other end of the operating capacitor CF 1.
The zero-power-consumption refrigerator starter circuit further comprises a FUSE FUSE, wherein a1 end of the FUSE FUSE is connected with the other end of the power supply AC, and a 2 end of the FUSE FUSE is respectively connected with an A3 pin of the processor MCU and one end of the resistor R5.
When the zero-power-consumption refrigerator starter circuit works, the processor MCU controls the conduction of the bidirectional triode TR1 and the relay RY1 through the triode T1 and the triode T2 to realize the starting of the compressor M, after the starting of the compressor M is finished, the processor MCU controls the triode T2 to be turned off, the relay RY1 is in an off state, no current passes through the starting thermistor PTC1, and therefore the zero power consumption of the starting circuit after the compressor M is started is realized; the processor MCU controls the triode T1 to lead the bidirectional triode TR1 to be conducted at different conduction angles, thus realizing the power control of the compressor M; the processor MCU judges the running current of the compressor M by detecting the voltage drop at two ends of the resistor R5, if the running current exceeds the set current, the bidirectional thyristor TR1 is turned off, the protection purpose is achieved, and the cost can be reduced by adopting a common FUSE FUSE.
This kind of zero power consumption refrigerator starter circuit passes through treater MCU control relay RY1 turn-off state, realize starting circuit zero power consumption, adjust bidirectional thyristor TR1 conduction angle through treater MCU, can control compressor M's operating power, through treater MCU detection resistance R5 both ends pressure drop, judge compressor M operating current, prevent the overpower phenomenon from appearing, this kind of zero power consumption refrigerator starter circuit simple structure in addition, the cost of manufacture is low, the working property is stable.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides an integrated start zero-power consumption refrigerator starter circuit of overload protection adjustable power which characterized in that: zero-power refrigerator starter circuit includes triac TR1, relay RY1, thermistor PTC1, refrigerator compressor unit, main control unit and resistance R5, triac TR 1's T2 end is connected power AC one end, T1 end and is connected the main control unit relay PY 1's 3 ends and refrigerator compressor unit, control pole T3 end connection main control unit, relay RY 1's 4 end is connected thermistor PTC1 one end, 1, 2 end all connect the main control unit, the other end of thermistor PTC1 is connected the refrigerator compressor unit, the refrigerator compressor unit is connected power AC other end and resistance R5's one end respectively, the resistance R5 other end is connected the main control unit, refrigerator compressor unit and GND respectively.
2. The zero power consumption refrigerator starter circuit according to claim 1, wherein the main control unit comprises a processor MCU, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a transistor T1, a transistor T2 and a diode D1, a pin A0 of the processor MCU is connected with a base of the transistor T1 through the resistor R3, a collector of the transistor T1 is respectively connected with a control electrode T3 of the triac TR1, one end of the resistor R1 and one end of the capacitor C1 through a resistor R2, the other end of the resistor R1 and the other end of the capacitor C1 are both connected with a terminal 1 of the triac TR1, the pin A1 of the processor MCU is connected with a base of the transistor T1 through the resistor R1, a collector of the transistor T1 is respectively connected with an anode of the diode D1 and a cathode of the diode PY1, and a cathode of the PY relay 1 is connected with a cathode of the relay 361 of the diode D1, the pin A3 of the processor MCU is respectively connected with the other end of a power supply AC and one end of the resistor R5, and the other end of the resistor R5, the emitter of the triode T1 and the emitter of the triode T2 are all connected with GND.
3. The zero power refrigerator starter circuit according to claim 2, wherein the refrigerator compressor unit comprises a compressor M and a running capacitor CF1, wherein a1 terminal of the compressor M is connected with the other terminal of the resistor R5, a 2 terminal of the compressor M is respectively connected with one terminal of the running capacitor CF1, a1 terminal of the bidirectional triode thyristor TR1 and a3 terminal of the bidirectional triode thyristor TR1 are respectively connected with the other terminal of the thermistor PTC1 and the other terminal of the running capacitor CF 1.
4. The zero-power-consumption refrigerator starter circuit of claim 3, further comprising a FUSE FUSE, wherein a terminal 1 of the FUSE FUSE is connected to the other terminal of the power AC, and a terminal 2 of the FUSE FUSE is respectively connected to a pin A3 of the processor MCU and one terminal of the resistor R5.
5. The zero power refrigerator starter circuit of claim 4 in which the thermistor PTC1 is a positive temperature coefficient thermistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121462696.1U CN215498773U (en) | 2021-06-29 | 2021-06-29 | Integrated zero-power-consumption refrigerator starter circuit with adjustable starting overload protection power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121462696.1U CN215498773U (en) | 2021-06-29 | 2021-06-29 | Integrated zero-power-consumption refrigerator starter circuit with adjustable starting overload protection power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215498773U true CN215498773U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121462696.1U Active CN215498773U (en) | 2021-06-29 | 2021-06-29 | Integrated zero-power-consumption refrigerator starter circuit with adjustable starting overload protection power |
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| Country | Link |
|---|---|
| CN (1) | CN215498773U (en) |
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2021
- 2021-06-29 CN CN202121462696.1U patent/CN215498773U/en active Active
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