CN211792066U - Temperature sensing control circuit for electric heating glass - Google Patents
Temperature sensing control circuit for electric heating glass Download PDFInfo
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- CN211792066U CN211792066U CN202020043258.0U CN202020043258U CN211792066U CN 211792066 U CN211792066 U CN 211792066U CN 202020043258 U CN202020043258 U CN 202020043258U CN 211792066 U CN211792066 U CN 211792066U
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Abstract
The utility model relates to the field of electric heating glass, in particular to an electric heating glass temperature sensing control circuit; an electrically heated glass temperature sensing control circuit comprising: the circuit protection module, the detection module and the amplification module; wherein the circuit protection module includes: the protection module and the excitation module are mainly used for overload protection of a circuit and addition of a specific working power supply for an auxiliary circuit; the detection module includes: the over-voltage detection and the over-current detection are mainly used for detecting the voltage and the current in the circuit; the amplification module is mainly used for controlling the strength of the temperature signal; the utility model discloses an add protection module in electrical heating glass temperature sensing control circuit, protect the output through the excessive pressure problem to the circuit, detect through the size to voltage and electric current simultaneously, reduce the emergence of excessive pressure problem, utilize simultaneously to enlarge the module, reduce external environment and equipment to output signal's interference, simultaneously enlarge the module and can enlarge output signal, guarantee that temperature signal can stable output.
Description
Technical Field
The utility model relates to an electrical heating glass field specifically is an electrical heating glass temperature sensing control circuit.
Background
The electrically heated glass starts to rise in surface temperature by electrifying and heating the glass, and when the temperature is controlled to be between 35 ℃ and 40 ℃, the temperature of a heating surface of the glass is kept level or slightly higher than the surface temperature of the glass, so that the effects of no generation of fog and frosting are achieved; electrically heated glass has now been widely used.
The electric heating glass uses low voltage and consumes less electricity, and the temperature on the surface of the glass can be adjusted by rotating when the glass is heated, so that the safety is greatly improved; however, the prior electric heating glass temperature sensing control circuit technology has the following problems:
1. when a plurality of pieces of glass are heated simultaneously, the safety of the glass and working personnel cannot be ensured, and the voltage and the current cannot be detected;
2. when temperature signals are transmitted, the signals are weakened, and the accuracy of the temperature is affected.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the temperature sensing control circuit for the electrically heated glass is provided to solve the above mentioned problems.
The technical scheme is as follows: electric heating glass temperature sensing control circuit includes: the circuit protection module, the detection module and the amplification module; wherein the circuit protection module includes: the device comprises a protection module and an excitation module; the detection module includes: overvoltage detection and overcurrent detection.
In a further embodiment, the protection module comprises: the current controller U1, a diode D1, a capacitor C1, a capacitor C2, a thermistor RT1, a capacitor C3, a triode Q1, a resistor R1, a capacitor C4, a transformer T1, a diode D2, an electrolytic capacitor C5, a resistor R2, a diode D3, a diode D4, a capacitor C6, a resistor R3 and an adjustable resistor Z1; pin No. 6 of the current controller U1 is connected to one end of the capacitor C1, the other end of the capacitor C1 is connected to the negative electrode of the diode D1, pin No. 5 of the current controller U1 is connected to one end of the capacitor C2, pin No. 7 of the current controller U1 is connected to one end of the thermistor RT1, pin No. 2 of the current controller U1 is simultaneously connected to the positive electrode of the diode D1, one end of the capacitor C3, one end of the resistor R1 and the input end of the transformer T, pin No. 1 of the current controller U1 is connected to the base of the transistor Q1, pin No. 3 of the current controller U1 is simultaneously connected to the emitter of the transistor Q1 and one end of the capacitor C4, the collector of the transistor Q1 is simultaneously connected to the positive electrode of the diode D2 and the input end of the transformer T1, the negative electrode of the diode D6342 is simultaneously connected to the other end of the capacitor C3 and the resistor R1, the output end of the transformer T1 is connected with the anode of the diode D2, the cathode of the diode D2 is simultaneously connected with the anode of the electrolytic capacitor C5, one end of the resistor R2 and one end of the resistor R3, the cathode of the electrolytic capacitor C5 is connected with the output end of the transformer T1 and grounded, the other end of the resistor R2 is connected with the anode of the diode D3, the cathode of the diode D3 is connected with one end of the capacitor C6 and the cathode of the diode D4 at the same time, the other end of the resistor R3 is connected with the other end of the capacitor C6 and one end of the adjustable resistor Z1 at the same time, the adjustable end of the adjustable resistor Z1 is connected with the anode of the diode D4, and the other end of the adjustable resistor Z1 is simultaneously connected with the other end of the capacitor C4, the other end of the thermistor RT1 and the other end of the capacitor C2 and is grounded; when the protection module is used, components and glass in the circuit are protected when the circuit breaks down.
In a further embodiment, the excitation module comprises: the circuit comprises a crystal oscillator capacitor C7, a resistor R4, a bidirectional diode D5, a resistor R5, a triode Q2, a capacitor C8, a diode D6 and a resistor R6; one end of the crystal oscillator capacitor C7 is simultaneously connected to one end of the resistor R5 and the anode of the diode D6, the other end of the crystal oscillator capacitor C7 is simultaneously connected to one end of the bidirectional diode D5 and one end of the resistor R4, the other end of the resistor R5 is simultaneously connected to the other end of the bidirectional diode D5 and the base of the triode Q2, the collector of the triode Q2 is simultaneously connected to one end of the capacitor C8, the other end of the capacitor C8 is simultaneously connected to the cathode of the diode D6 and one end of the resistor R6, and the emitter of the triode Q2 is simultaneously connected to the other end of the resistor R6 and the other end of the resistor R4; the excitation module is used for converting the power supply voltage into the voltage required by heating.
In a further embodiment, the overvoltage detection comprises: the circuit comprises a diode D6, an adjustable resistor Z2, a capacitor C9 and a bidirectional diode D7; the anode of the diode D6 is connected to one end of the adjustable resistor Z2 and one end of the capacitor C9, the adjustable end of the adjustable resistor Z2 is connected to the other end of the capacitor C9 and one end of the bidirectional diode D7, and the other end of the adjustable resistor Z2 is connected to the other end of the bidirectional diode D7; the overvoltage detection is to detect the circuit voltage.
In a further embodiment, the over-current detection comprises: a capacitor C10, an adjustable resistor Z3, a diode D8, a resistor R7, a triode Q3, a triode Q4, a diode D11, a diode D10 and a diode D9; the adjustable end of the adjustable resistor Z3 is connected to the cathode of the diode D9 and the cathode of the diode D10 at the same time, one end of the adjustable resistor Z3 is connected to the anode of the diode D9 and one end of the capacitor C10 at the same time, the other end of the adjustable resistor Z3 is connected to the other end of the capacitor C10 and the cathode of the diode D8 at the same time, the emitter of the transistor Q3 is connected to the anode of the diode D8 and one end of the resistor R7 at the same time, the base of the transistor Q3 is connected to the other end of the resistor R7 and the emitter of the transistor Q4 at the same time, the collector of the transistor Q4 is connected to the collector of the transistor Q3, the base of the transistor Q4 is connected to the anode of the diode D11, and the cathode of the diode D11 is connected to the anode of the diode D10; the over-current detection is to detect a circuit current.
In a further embodiment, the amplification module comprises: the circuit comprises a crystal oscillator tube X1, a capacitor C11, a resistor R8, a triode Q5, a resistor R9, an amplifier U2, an amplifier U3, a diode D12, a capacitor C12, a capacitor C13, a resistor R10, a resistor R11 and a capacitor C14; wherein, pin 3 of the amplifier U2 is connected to the collector of the transistor Q5 and one end of the capacitor C11, the base of the transistor Q5 is connected to the other end of the capacitor C11 and one end of the resistor R8, pin 2 of the amplifier U2 is connected to one end of the resistor R8 and the anode of the diode D12, pin 1 of the amplifier U2 is connected to one end of the capacitor C12, the cathode of the diode D12, one end of the capacitor C13 and pin 5 of the amplifier U3, the other end of the capacitor C12 is connected to pin 1 of the crystal tube X1, pin 6 of the amplifier U3 is connected to one end of the resistor R11 and one end of the resistor R10, pin 7 of the amplifier U3 is connected to the other end of the resistor R11, and the other end of the resistor R10 is connected to one end of the capacitor C14, the other end of the capacitor C14 is simultaneously connected with the other end of the capacitor C13, the other end of the resistor R9, the emitter of the triode Q5, the other end of the resistor R8 and the pin No. 2 of the crystal oscillator tube X1 and is grounded; the amplifying module is used for amplifying and controlling the temperature signal.
Has the advantages that: the utility model adds the over-voltage detection and over-current detection in the temperature sensing control circuit of the electric heating glass, can carry out the real-time detection of voltage and the real-time detection of current on the circuits of a plurality of heating glasses, and reduces the occurrence of circuit accidents; meanwhile, when temperature signals are transmitted, the circuit can amplify and control the signals according to the attenuation conditions of external equipment and the circuit, and the accuracy of the temperature is guaranteed.
Drawings
Fig. 1 is a circuit diagram of the present invention.
Fig. 2 is a circuit diagram of the circuit protection module of the present invention.
Fig. 3 is a circuit diagram of the detection module of the present invention.
Fig. 4 is a circuit diagram of the amplifying module of the present invention.
Detailed Description
An electrically heated glass temperature sensing control circuit comprising: electric heating glass temperature sensing control circuit includes: the circuit protection module, the detection module and the amplification module; wherein the circuit protection module includes: the device comprises a protection module and an excitation module; the detection module includes: overvoltage detection and overcurrent detection.
Wherein, the protection module includes: the current controller U1, a diode D1, a capacitor C1, a capacitor C2, a thermistor RT1, a capacitor C3, a triode Q1, a resistor R1, a capacitor C4, a transformer T1, a diode D2, an electrolytic capacitor C5, a resistor R2, a diode D3, a diode D4, a capacitor C6, a resistor R3 and an adjustable resistor Z1; the excitation module includes: the circuit comprises a crystal oscillator capacitor C7, a resistor R4, a bidirectional diode D5, a resistor R5, a triode Q2, a capacitor C8, a diode D6 and a resistor R6; the overvoltage detection includes: the circuit comprises a diode D6, an adjustable resistor Z2, a capacitor C9 and a bidirectional diode D7; the overcurrent detection comprises: a capacitor C10, an adjustable resistor Z3, a diode D8, a resistor R7, a triode Q3, a triode Q4, a diode D11, a diode D10 and a diode D9; the amplification module includes: the circuit comprises a crystal oscillator tube X1, a capacitor C11, a resistor R8, a triode Q5, a resistor R9, an amplifier U2, an amplifier U3, a diode D12, a capacitor C12, a capacitor C13, a resistor R10, a resistor R11 and a capacitor C14.
As shown in fig. 2, pin No. 6 of the current controller U1 is connected to one end of the capacitor C1, the other end of the capacitor C1 is connected to the negative electrode of the diode D1, pin No. 5 of the current controller U1 is connected to one end of the capacitor C2, pin No. 7 of the current controller U1 is connected to one end of the thermistor RT1, pin No. 2 of the current controller U1 is simultaneously connected to the positive electrode of the diode D1, one end of the capacitor C3, one end of the resistor R1 and the input end of the transformer T, pin No. 1 of the current controller U1 is connected to the base of the transistor Q1, pin No. 3 of the current controller U1 is simultaneously connected to the emitter of the transistor Q1 and one end of the capacitor C4, the collector of the transistor Q1 is simultaneously connected to the positive electrode of the diode D2 and the input end of the transformer T1, the cathode of the diode D2 is connected to the other end of the capacitor C3 and the other end of the resistor R1, the output end of the transformer T1 is connected to the anode of the diode D2, the cathode of the diode D2 is connected to the anode of the electrolytic capacitor C5, one end of the resistor R2 and one end of the resistor R3, the cathode of the electrolytic capacitor C5 is connected to the output end of the transformer T1 and grounded, the other end of the resistor R2 is connected to the anode of the diode D3, the cathode of the diode D3 is connected to the one end of the capacitor C6 and the cathode of the diode D4, the other end of the resistor R3 is connected to the other end of the capacitor C6 and one end of the adjustable resistor Z1, the adjustable end of the adjustable resistor Z1 is connected to the anode of the diode D4, the other end of the adjustable resistor Z1 is connected to the other end of the capacitor C4 and the other end of the capacitor C4, The other end of the thermistor RT1 and the other end of the capacitor C2 are connected and grounded; one end of the crystal oscillator capacitor C7 is connected to one end of the resistor R5 and the anode of the diode D6, the other end of the crystal oscillator capacitor C7 is connected to one end of the bidirectional diode D5 and one end of the resistor R4, the other end of the resistor R5 is connected to the other end of the bidirectional diode D5 and the base of the triode Q2, the collector of the triode Q2 is connected to one end of the capacitor C8, the other end of the capacitor C8 is connected to the cathode of the diode D6 and one end of the resistor R6, and the emitter of the triode Q2 is connected to the other end of the resistor R6 and the other end of the resistor R4.
As shown in fig. 3, the anode of the diode D6 is connected to one end of the adjustable resistor Z2 and one end of the capacitor C9, the adjustable end of the adjustable resistor Z2 is connected to the other end of the capacitor C9 and one end of the bidirectional diode D7, and the other end of the adjustable resistor Z2 is connected to the other end of the bidirectional diode D7; an adjustable end of the adjustable resistor Z3 is connected to a cathode of the diode D9 and a cathode of the diode D10, one end of the adjustable resistor Z3 is connected to an anode of the diode D9 and one end of the capacitor C10, the other end of the adjustable resistor Z3 is connected to the other end of the capacitor C10 and a cathode of the diode D8, an emitter of the transistor Q3 is connected to an anode of the diode D8 and one end of the resistor R7, a base of the transistor Q3 is connected to the other end of the resistor R7 and an emitter of the transistor Q4, a collector of the transistor Q4 is connected to a collector of the transistor Q3, a base of the transistor Q4 is connected to an anode of the diode D11, and a cathode of the diode D11 is connected to an anode of the diode D10.
As shown in fig. 4, pin 3 of the amplifier U2 is connected to the collector of the transistor Q5 and one end of the capacitor C11, the base of the transistor Q5 is connected to the other end of the capacitor C11 and one end of the resistor R8, pin 2 of the amplifier U2 is connected to one end of the resistor R8 and the anode of the diode D12, pin 1 of the amplifier U2 is connected to one end of the capacitor C12, the cathode of the diode D12, one end of the capacitor C13 and pin 5 of the amplifier U3, the other end of the capacitor C12 is connected to pin 1 of the transistor X1, pin 6 of the amplifier U3 is connected to one end of the resistor R11 and one end of the resistor R10, pin 7 of the amplifier U3 is connected to the other end of the resistor R11, and the other end of the resistor R10 is connected to one end of the capacitor C14, the other end of the capacitor C14 is connected to the other end of the capacitor C13, the other end of the resistor R9, the emitter of the transistor Q5, the other end of the resistor R8 and pin No. 2 of the transistor X1, and is grounded.
The working principle is as follows: the power supply is switched on, 220V power supply voltage is input into the circuit, the electric heating glass temperature sensing control circuit works, the voltage enters the circuit through a diode D1 to be conducted, a capacitor C1 carries out voltage safety and enters a current controller U1, the capacitor C2 and a thermistor RT1 to be protected, the thermistor RT1 can detect the temperature of the circuit, the current controller U1 transmits signals to a triode Q1 to carry out signal transmission, a transformer T1 carries out voltage size conversion, a resistor R1 and the capacitor C1 carry out protection to increase impedance, so that the voltage is converted into working voltage, meanwhile, the voltage conversion is completed, the diode D2 is used for conducting output, and the electrolytic capacitor C5 is used for protecting and grounding; the resistor R2 and the resistor R3 are connected in series to increase impedance, the adjustable terminal Z1 performs impedance self-adjustment, the diode D3 and the diode D4 perform signal output, the protection is performed through the capacitor C6, the protection enters the excitation module, the crystal oscillator capacitor C7 performs parallel resonance, the bidirectional diode D5 conducts working voltage, the triode Q2 performs working voltage distribution, the circuit voltage is performed through the diode D6 and the capacitor C8, and the heating voltage is transmitted through the resistor R6; when a plurality of pieces of glass are heated, voltage is transmitted through the diode D6, the adjustable resistor Z2 is matched with the diode D7 to detect circuit voltage, the capacitor C7 is used for protection, meanwhile, the circuit is transmitted to a current detection circuit through the capacitor C10, the triode Q3 is output through the diode D8 and the resistor R7 and is controlled through the adjustable resistor Z3, the triode Q4 and the diode D11 are used for outputting current size signals and feeding back the signals to the control terminal, and therefore workers can better check and adjust the signals; when temperature signals are transmitted, the transmission speed and the accuracy are adjusted and stabilized through the amplification module due to the reason of external equipment and the reason of internal transmission attenuation, the frequency of the signals is stabilized through the crystal oscillator tube X1, meanwhile, the triode Q5 is used for signal classification, the signals smaller than the range are amplified for the first time and are amplified through the amplifier U2, the resistor R9 is used for protecting and outputting, when the signals are too weak, the signals are amplified for the second time through the diode D12 and are amplified through the amplifier U3, the resistance R11 and the resistor R11 are used for impedance increase, the signals are stabilized, and the signals are stably output through the capacitor C14, so that the electric heating glass is stable and accurate, and the working efficiency is improved.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.
Claims (6)
1. An electric heating glass temperature sensing control circuit, characterized by comprising: the circuit protection module, the detection module and the amplification module; wherein the circuit protection module includes: the device comprises a protection module and an excitation module;
the protection module includes: the current controller U1, a diode D1, a capacitor C1, a capacitor C2, a thermistor RT1, a capacitor C3, a triode Q1, a resistor R1, a capacitor C4, a transformer T1, a diode D2, an electrolytic capacitor C5, a resistor R2, a diode D3, a diode D4, a capacitor C6, a resistor R3 and an adjustable resistor Z1; pin No. 6 of the current controller U1 is connected to one end of the capacitor C1, the other end of the capacitor C1 is connected to the negative electrode of the diode D1, pin No. 5 of the current controller U1 is connected to one end of the capacitor C2, pin No. 7 of the current controller U1 is connected to one end of the thermistor RT1, pin No. 2 of the current controller U1 is simultaneously connected to the positive electrode of the diode D1, one end of the capacitor C3, one end of the resistor R1 and the input end of the transformer T, pin No. 1 of the current controller U1 is connected to the base of the transistor Q1, pin No. 3 of the current controller U1 is simultaneously connected to the emitter of the transistor Q1 and one end of the capacitor C4, the collector of the transistor Q1 is simultaneously connected to the positive electrode of the diode D2 and the input end of the transformer T1, the negative electrode of the diode D6342 is simultaneously connected to the other end of the capacitor C3 and the resistor R1, the output end of the transformer T1 is connected with the anode of the diode D2, the cathode of the diode D2 is simultaneously connected with the anode of the electrolytic capacitor C5, one end of the resistor R2 and one end of the resistor R3, the cathode of the electrolytic capacitor C5 is connected with the output end of the transformer T1 and grounded, the other end of the resistor R2 is connected with the anode of the diode D3, the cathode of the diode D3 is connected with one end of the capacitor C6 and the cathode of the diode D4 at the same time, the other end of the resistor R3 is connected with the other end of the capacitor C6 and one end of the adjustable resistor Z1 at the same time, the adjustable end of the adjustable resistor Z1 is connected with the anode of the diode D4, and the other end of the adjustable resistor Z1 is connected with the other end of the capacitor C4, the other end of the thermistor RT1 and the other end of the capacitor C2 and is grounded.
2. The temperature-sensing control circuit for electrically heated glass as claimed in claim 1, wherein: the excitation module includes: the circuit comprises a crystal oscillator capacitor C7, a resistor R4, a bidirectional diode D5, a resistor R5, a triode Q2, a capacitor C8, a diode D6 and a resistor R6; one end of the crystal oscillator capacitor C7 is connected to one end of the resistor R5 and the anode of the diode D6, the other end of the crystal oscillator capacitor C7 is connected to one end of the bidirectional diode D5 and one end of the resistor R4, the other end of the resistor R5 is connected to the other end of the bidirectional diode D5 and the base of the transistor Q2, the collector of the transistor Q2 is connected to one end of the capacitor C8, the other end of the capacitor C8 is connected to the cathode of the diode D6 and one end of the resistor R6, and the emitter of the transistor Q2 is connected to the other end of the resistor R6 and the other end of the resistor R4.
3. The temperature-sensing control circuit for electrically heated glass as claimed in claim 1, wherein: the detection module comprises: overvoltage detection and overcurrent detection; wherein the overvoltage detection comprises: the circuit comprises a diode D6, an adjustable resistor Z2, a capacitor C9 and a bidirectional diode D7; the anode of the diode D6 is connected to one end of the adjustable resistor Z2 and one end of the capacitor C9, the adjustable end of the adjustable resistor Z2 is connected to the other end of the capacitor C9 and one end of the bidirectional diode D7, and the other end of the adjustable resistor Z2 is connected to the other end of the bidirectional diode D7.
4. The temperature-sensing control circuit for electrically heated glass as claimed in claim 3, wherein: the over-current detection comprises: a capacitor C10, an adjustable resistor Z3, a diode D8, a resistor R7, a triode Q3, a triode Q4, a diode D11, a diode D10 and a diode D9; the adjustable end of the adjustable resistor Z3 is connected to the cathode of the diode D9 and the cathode of the diode D10, one end of the adjustable resistor Z3 is connected to the anode of the diode D9 and one end of the capacitor C10, the other end of the adjustable resistor Z3 is connected to the other end of the capacitor C10 and the cathode of the diode D8, the emitter of the transistor Q3 is connected to the anode of the diode D8 and one end of the resistor R7, the base of the transistor Q3 is connected to the other end of the resistor R7 and the emitter of the transistor Q4, the collector of the transistor Q4 is connected to the collector of the transistor Q3, the base of the transistor Q4 is connected to the anode of the diode D11, and the cathode of the diode D11 is connected to the anode of the diode D10.
5. The temperature-sensing control circuit for electrically heated glass as claimed in claim 1, wherein the amplifying module comprises: the circuit comprises a crystal oscillator tube X1, a capacitor C11, a resistor R8, a triode Q5, a resistor R9, an amplifier U2, an amplifier U3, a diode D12, a capacitor C12, a capacitor C13, a resistor R10, a resistor R11 and a capacitor C14; wherein, pin 3 of the amplifier U2 is connected to the collector of the transistor Q5 and one end of the capacitor C11, the base of the transistor Q5 is connected to the other end of the capacitor C11 and one end of the resistor R8, pin 2 of the amplifier U2 is connected to one end of the resistor R8 and the anode of the diode D12, pin 1 of the amplifier U2 is connected to one end of the capacitor C12, the cathode of the diode D12, one end of the capacitor C13 and pin 5 of the amplifier U3, the other end of the capacitor C12 is connected to pin 1 of the crystal tube X1, pin 6 of the amplifier U3 is connected to one end of the resistor R11 and one end of the resistor R10, pin 7 of the amplifier U3 is connected to the other end of the resistor R11, and the other end of the resistor R10 is connected to one end of the capacitor C14, the other end of the capacitor C14 is connected to the other end of the capacitor C13, the other end of the resistor R9, the emitter of the transistor Q5, the other end of the resistor R8 and pin No. 2 of the transistor X1, and is grounded.
6. The temperature-sensing control circuit for electrically heated glass as claimed in claim 1, wherein: the model of the current controller U1 is M5573A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020043258.0U CN211792066U (en) | 2020-01-09 | 2020-01-09 | Temperature sensing control circuit for electric heating glass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020043258.0U CN211792066U (en) | 2020-01-09 | 2020-01-09 | Temperature sensing control circuit for electric heating glass |
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| CN211792066U true CN211792066U (en) | 2020-10-27 |
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| CN202020043258.0U Active CN211792066U (en) | 2020-01-09 | 2020-01-09 | Temperature sensing control circuit for electric heating glass |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117320196A (en) * | 2023-11-30 | 2023-12-29 | 湖南振添光学玻璃科技有限公司 | Anti-fog glass electric heating controller |
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2020
- 2020-01-09 CN CN202020043258.0U patent/CN211792066U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117320196A (en) * | 2023-11-30 | 2023-12-29 | 湖南振添光学玻璃科技有限公司 | Anti-fog glass electric heating controller |
| CN117320196B (en) * | 2023-11-30 | 2024-02-20 | 湖南振添光学玻璃科技有限公司 | Anti-fog glass electric heating controller |
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