CN218936763U - Pressure regulating device based on humidity and freezer glass door - Google Patents
Pressure regulating device based on humidity and freezer glass door Download PDFInfo
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- CN218936763U CN218936763U CN202223521488.1U CN202223521488U CN218936763U CN 218936763 U CN218936763 U CN 218936763U CN 202223521488 U CN202223521488 U CN 202223521488U CN 218936763 U CN218936763 U CN 218936763U
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Abstract
The present disclosure relates to a humidity-based pressure regulating device and a refrigerator glass door, the pressure regulating device comprising: the refrigerator comprises a controller, a humidity sensor and a pressure regulating module, wherein the output end of the humidity sensor is connected with the controller, the control end of the controller is connected with the first input end of the pressure regulating module, and the output end of the pressure regulating module is connected with a heating device of the refrigerator; the humidity sensor is used for detecting the ambient humidity; the controller is used for outputting a corresponding matched pulse signal to the voltage regulating module according to the ambient humidity; the voltage regulating module is used for correspondingly regulating the output voltage provided for the heating device according to the pulse signal. Therefore, the pressure regulating device does not need a temperature sensor to collect the temperature of the glass door, simplifies the structure of the device, and is beneficial to reducing the manufacturing cost and the assembly difficulty; the pressure regulating device dynamically controls the working voltage (or working power) of the heating device according to the ambient humidity, so that the condensation phenomenon of the glass door is prevented, and meanwhile, the heating device is prevented from working at high power for a long time, thereby being beneficial to saving electric energy and prolonging the service life of the heating device.
Description
Technical Field
The disclosure relates to the technical field of alternating current voltage regulation, in particular to a humidity-based voltage regulating device and a refrigerator glass door.
Background
Condensation is easy to occur on the outer surface of the glass door of the refrigerator, so that the permeation effect is affected. In the related art, the anti-condensation device is used for determining the ambient dew point temperature according to the ambient temperature and the ambient humidity by collecting the ambient temperature and the ambient humidity and the temperature of the glass door, and controlling the heating device arranged on the glass door to work so that the temperature of the glass door is higher than the dew point temperature, thereby preventing the occurrence of the condensation phenomenon. However, the above-mentioned anti-condensation device includes a large number of sensors, and has disadvantages of high manufacturing cost and difficulty in assembly.
Disclosure of Invention
In order to solve the technical problem, the disclosure provides a humidity-based pressure regulating device and a refrigerator glass door.
In a first aspect, the present disclosure provides a humidity-based pressure regulating device for a refrigerator glass door, comprising: the refrigerator comprises a controller, a humidity sensor and a voltage regulating module, wherein the output end of the humidity sensor is connected with the controller, the control end of the controller is connected with the first input end of the voltage regulating module, and the output end of the voltage regulating module is connected with a heating device of the glass door of the refrigerator;
the humidity sensor is used for detecting the ambient humidity; the controller is used for outputting a corresponding matched pulse signal to the voltage regulating module according to the ambient humidity; the voltage regulating module is used for correspondingly regulating the output voltage provided for the heating device according to the pulse signal.
Optionally, the method further comprises: a potentiometer; the potentiometer is electrically connected with the controller and is used for setting the maximum output voltage of the voltage regulating module.
Optionally, the pressure regulating device further includes: a power module; the input end of the power supply module is connected with the mains supply, and the output end of the power supply module is electrically connected with the controller, the humidity sensor and the voltage regulating module; the power module is used for converting commercial power into working voltages required by the controller, the humidity sensor and the voltage regulating module.
Optionally, the voltage regulating module further comprises a second input end and a third input end; the second input end is connected with the output end of the power supply module, and the third input end is connected with the live wire.
Optionally, the voltage regulating module includes one of a voltage regulating circuit and an electronic voltage regulator.
Optionally, the pressure regulating device further includes: the input end of the filter is connected with a live wire and a zero wire, and the output end of the filter is connected with the voltage regulating module and the power supply module; the filter is used for reducing electromagnetic interference of the voltage regulating module to the mains supply.
Optionally, the pressure regulating device further includes: status indicator lights; the state indicator lamp is electrically connected with the controller and used for indicating the power supply state of the power supply module and the heating state of the heating device.
In a second aspect, the present disclosure also provides a refrigerator glass door comprising:
a hollow glass and a rim disposed around the hollow glass;
the heating device is arranged on the hollow glass;
the pressure regulating device is electrically connected with the heating device.
Optionally, the pressure regulating device is embedded in the frame of the refrigerator glass door, a detection hole is formed in the frame, and the humidity sensor is arranged in the detection hole and exposed on the surface of the frame.
Optionally, the heating device includes at least one of an electrothermal film and an electrothermal wire.
Compared with the prior art, the technical scheme provided by the disclosure has the following advantages:
the utility model provides a pressure regulating device and freezer glass door based on humidity, this pressure regulating device includes: the refrigerator comprises a controller, a humidity sensor and a pressure regulating module, wherein the output end of the humidity sensor is connected with the controller, the control end of the controller is connected with the first input end of the pressure regulating module, and the output end of the pressure regulating module is connected with a heating device of the refrigerator; the humidity sensor is used for detecting the ambient humidity; the controller is used for outputting a corresponding matched pulse signal to the voltage regulating module according to the ambient humidity; the voltage regulating module is used for correspondingly regulating the output voltage provided for the heating device according to the pulse signal. Therefore, the voltage regulating device regulates the output voltage provided for the heating device according to the ambient humidity, so that the heating power of the heating device is regulated to prevent the glass door of the refrigerator from condensation; the pressure regulating device dynamically controls the working voltage (or working power) of the heating device according to the ambient humidity, prevents the glass door from generating condensation phenomenon, simultaneously avoids long-time high-power operation of the heating device, and is beneficial to saving electric energy and prolonging the service life of the heating device.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a humidity-based pressure regulating device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another humidity-based pressure regulating device according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another humidity-based pressure regulating device according to an embodiment of the present disclosure;
fig. 4 is a circuit diagram of a voltage regulating module according to an embodiment of the disclosure;
fig. 5 is a schematic structural view of a glass door of a refrigerator according to an embodiment of the present disclosure.
10, a pressure regulating device; 11. a controller; 12. a humidity sensor; 13. a pressure regulating module; 14. a potentiometer; 15. a power module; 16. a filter; 17. status indicator lights; 20. hollow glass; 30. a heating device; 40. a frame; 50. and a door shaft.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.
In order to solve the technical problem that the background art part put forward, the embodiment of the disclosure provides a pressure regulating device and freezer glass door based on humidity, and this pressure regulating device includes: the refrigerator comprises a controller, a humidity sensor and a pressure regulating module, wherein the output end of the humidity sensor is connected with the controller, the control end of the controller is connected with the first input end of the pressure regulating module, and the output end of the pressure regulating module is connected with a heating device of the refrigerator; the humidity sensor is used for detecting the ambient humidity; the controller is used for outputting a corresponding matched pulse signal to the voltage regulating module according to the ambient humidity; the voltage regulating module is used for correspondingly regulating the output voltage provided for the heating device according to the pulse signal. Therefore, the voltage regulating device regulates the output voltage provided for the heating device according to the ambient humidity, so that the heating power of the heating device is regulated to prevent the glass door of the refrigerator from condensation; the pressure regulating device dynamically controls the working voltage (or working power) of the heating device according to the ambient humidity, prevents the glass door from generating condensation phenomenon, simultaneously avoids long-time high-power operation of the heating device, and is beneficial to saving electric energy and prolonging the service life of the heating device.
An exemplary description of a humidity-based pressure regulating device and a refrigerator glass door provided in an embodiment of the present disclosure is provided below with reference to fig. 1 to 5.
The embodiment of the disclosure provides a humidity-based pressure regulating device, which is applied to a refrigerator glass door. As shown in fig. 1 to 3, the pressure regulating device 10 includes: the refrigerator comprises a controller 11, a humidity sensor 12 and a voltage regulating module 13, wherein the output end of the humidity sensor 12 is connected with the controller 11, the control end of the controller 11 is connected with the first input end of the voltage regulating module 13, and the output end of the voltage regulating module 13 is connected with a heating device 30 of a glass door of the refrigerator; wherein the humidity sensor 12 is used for detecting the ambient humidity; the controller 11 is configured to output a corresponding matched pulse signal to the voltage regulation module 13 according to the ambient humidity; the voltage regulating module 13 is used for correspondingly regulating the output voltage provided to the heating device 30 according to the pulse signal.
The condensation phenomenon of the glass door of the refrigerator is mainly affected by three factors: the internal temperature, the ambient temperature and the ambient humidity of the refrigerator; as the use environment of the refrigerator is mostly in commercial superelevation, the internal temperature and the ambient temperature of the refrigerator are relatively stable, and the change of the ambient humidity plays a decisive role. Therefore, the pressure regulating device does not need a temperature sensor to collect the temperature of the glass door, simplifies the structure of the device, and is beneficial to reducing the manufacturing cost and the assembly difficulty.
The voltage regulating device collects ambient humidity through the humidity sensor 12, converts the collection result into an electronic signal and transmits the electronic signal to the controller, the controller 11 receives the electronic signal and then determines the output voltage of the voltage regulating module 13, and outputs a delay pulse signal correspondingly matched with the output voltage to the voltage regulating module 13, the voltage regulating module 13 regulates the output voltage after receiving the pulse signal, and the output voltage of the voltage regulating module 13 is the working voltage of the heating device 30, so that the effect of regulating the working power of the heating device 30 is achieved. When the environmental humidity is high, condensation is easy to generate on the glass door of the refrigerator, the glass door is required to be heated by the heating device, and the working power is high, so that the output voltage of the voltage regulating module 13 is high; when the ambient humidity is low, condensation is not easy to generate on the glass door of the refrigerator, the working power of the heating device 30 is low, and the output voltage of the voltage regulating module 13 is low. So set up, this pressure regulating device 10 is according to the operating voltage (or operating power) of environmental humidity dynamic control heating device 30, when preventing that the glass door from taking place the condensation phenomenon, still avoided heating device 30 long-time high-power work, be favorable to saving the electric energy and extension heating device life-span.
Fig. 4 is a circuit diagram of a voltage regulating module provided in an embodiment of the present disclosure, where a control input is connected to a controller 11, a live wire L and a zero wire N are commercial power, an electric heating wire/film is a heating device, and a resistor R6, a diode D2 and a transformer form a zero-crossing detection circuit for detecting whether a voltage of the commercial power (alternating current) is in a positive half cycle, that is, whether a voltage value of the commercial power is greater than zero. Referring to fig. 4, the controller 11 detects whether the zero crossing signal is greater than a preset voltage value (e.g. 0.1V) in real time, and delays transmitting a pulse signal to the voltage regulation module 13 according to the required voltage when detecting that the zero crossing signal is greater than the preset voltage value, and the pulse signal is isolated by an optical coupler to trigger the thyristor (Silicon Controlled Rectifier, SCR) to be turned on; until the negative half cycle of the alternating current, the thyristor is closed; the cycle is repeated, and the effects of phase shifting and voltage regulating are achieved.
It should be noted that, the delay time of the pulse signal is inversely related to the output voltage, while the output voltage is positively related to the ambient humidity, the higher the ambient humidity is, the higher the output voltage is, and the shorter the corresponding delay time is; the lower the ambient humidity, the lower the output voltage and the longer the delay time.
Embodiments of the present disclosure provide a humidity-based pressure regulating device, the pressure regulating device 10 comprising: the refrigerator comprises a controller 11, a humidity sensor 12 and a voltage regulating module 13, wherein the output end of the humidity sensor 12 is connected with the controller 11, the control end of the controller 11 is connected with the first input end of the voltage regulating module 13, and the output end of the voltage regulating module 13 is connected with a heating device 30 of the refrigerator; wherein the humidity sensor 12 is used for detecting the ambient humidity; the controller 11 is configured to output a corresponding matched pulse signal to the voltage regulation module 13 according to the ambient humidity; the voltage regulating module 13 is used for correspondingly regulating the output voltage provided to the heating device 30 according to the pulse signal. Therefore, the voltage regulating device 10 regulates the output voltage provided for the heating device 30 according to the ambient humidity, thereby regulating the heating power of the heating device 30 to prevent the glass door of the refrigerator from condensation, the voltage regulating device 10 does not need a temperature sensor to collect the temperature of the glass door, the device structure is simplified, and the manufacturing cost and the assembly difficulty are reduced; the pressure regulating device 10 dynamically controls the working voltage (or working power) of the heating device 30 according to the ambient humidity, prevents the glass door from generating condensation phenomenon, simultaneously avoids long-time high-power operation of the heating device 30, and is beneficial to saving electric energy and prolonging the service life of the heating device.
In some embodiments, as shown in fig. 1, the pressure regulating device 10 further comprises: a potentiometer 14; the potentiometer 14 is electrically connected with the controller 11 and is used for setting the maximum output voltage of the voltage regulating module 13.
Wherein the potentiometer 14 may be configured as one of a knob type potentiometer and a slide type potentiometer.
Because the greater the ambient humidity is, the easier the condensation is produced on the glass door, the higher the working power of the heating device 30 is needed to heat the glass door, and the higher the output voltage of the voltage regulating module 13 is needed, the output voltage even exceeds the rated voltage of the heating device 30, the heating device 30 runs at high voltage or over voltage for a long time, the burning loss is easy, the service life is seriously influenced, and the safety risk is increased to a certain extent. Accordingly, a potentiometer 14 is added to the voltage regulator 10 to set an upper limit value of the output voltage of the voltage regulator module 13, that is, a maximum output voltage. So set up, when the output voltage that ambient humidity corresponds is greater than maximum output voltage, voltage regulating module 13 regard as output voltage with maximum output voltage, avoids heating device 30 long-time high pressure or excessive pressure operation, is favorable to prolonging heating device 30's life, has also reduced the security risk.
In some embodiments, as shown in fig. 2-3, the pressure regulating device 10 further comprises: a power supply module 15; the input end of the power supply module 15 is connected with the mains supply, and the output end of the power supply module 15 is electrically connected with the controller 11, the humidity sensor 12 and the voltage regulating module 13; the power module 15 is used for converting the mains supply into the working voltages required by the controller 11, the humidity sensor 12 and the voltage regulating module 13.
Wherein, the commercial power refers to alternating current with the voltage value between 100V and 240V, and is converted into working voltage required by the controller 11, the humidity sensor 12 and the voltage regulating module 13 after being processed by the power module 15; typically, the operating voltage of the controller 11, humidity sensor 12 and voltage regulation module 13 is well below the mains voltage, for example 5V.
In some embodiments, as shown in fig. 2, the voltage regulation module 13 further includes a second input terminal and a third input terminal; the second input end is connected with the output end of the power module 15, and the third input end is connected with the live wire L.
Illustratively, as shown in fig. 2, the voltage regulating module 13 includes three input terminals and one output terminal, wherein a first input terminal of the voltage regulating module 13 is connected to the controller 11 and is configured to receive a pulse signal sent by the controller 11; the second input end of the voltage regulating module 13 is connected with the power module 15 and is used for receiving the working voltage provided by the power module 15 so as to maintain the operation of the voltage regulating module 13; the third input end of the voltage regulating module 13 is connected with a live wire L, the output end is connected with a heating device 30, the heating device 30 is also connected with a zero line N, and the output voltage is regulated by controlling the on and off of a thyristor in the voltage regulating module 13.
In some embodiments, the voltage regulation module includes one of a voltage regulation circuit and an electronic voltage regulator.
The voltage regulating module 13 may be configured as a voltage regulating circuit, an electronic voltage regulator, or electronic components all having a voltage regulating function as known to those skilled in the art, which is not limited herein.
It should be noted that fig. 4 illustrates only one voltage regulating circuit, but does not constitute a limitation of the humidity-based voltage regulating device provided by the embodiments of the present disclosure. In other embodiments, the voltage regulating circuit may be designed according to the requirement of the voltage regulating device, which is not limited herein.
In some embodiments, as shown in fig. 2, the pressure regulating device 10 further comprises: the input end of the filter 16 is connected with the live wire L and the zero wire N of the mains supply, and the output end of the filter 16 is connected with the voltage regulating module 13 and the power module 15; the filter 16 is used to reduce electromagnetic interference of the voltage regulation module to the mains.
The third input end of the voltage regulating module 13 is connected with the live wire L of the mains supply, the power module 15 is also connected with the live wire L of the mains supply, and in order to reduce electromagnetic interference of the voltage regulating module 13 to the power grid, the voltage regulating device 10 is added with a filter 16, so that the voltage regulating device 10 has a filtering function.
In some embodiments, as shown in fig. 2-3, the pressure regulating device 10 further comprises: status indicator lights 17; the status indicator lamp 17 is electrically connected to the controller 11 for indicating the power supply status of the power supply module 15 and the heating status of the heating device 30.
Wherein the status indicator light can be provided as a light emitting diode (Light Emitting Diode, LED). As shown in fig. 2, the status indicator lamps 17 are two status indicator lamps with different colors, wherein, +.o. indicates red, o. indicates green, and the status indicator lamps 17 with green are used for indicating the power supply status of the power module 15, when the status indicator lamps 17 are on, the power module 15 is normal, and when the status indicator lamps 17 are off, the power module 15 is abnormal and power-off maintenance is needed; the red status indicator lamp 17 indicates a heating state of the heating device 30, and when the status indicator lamp 17 is on, the heating device 30 is heating, and when the status indicator lamp 17 is off, the heating device 30 stops heating. The heating state of the heating device 30 is related to the state of the thyristor in the voltage regulating module 13, the heating device 30 is heating when the thyristor is in the on state, and the heating device 30 stops operating when the thyristor is in the off state.
It can be understood that fig. 2 only exemplarily shows that the number of status indication lamps 17 is two for the operation status of the power module 15 and the heating status of the heating device 30, respectively, but does not constitute a limitation of the humidity-based voltage regulator provided by the embodiments of the present disclosure. In other embodiments, the number and the functions of the status indicator lamps may be flexibly set according to the requirement of the voltage regulator, for example, three or more indicator lamps may be provided, and the status indicator may be used to indicate the operating status of the humidity sensor in addition to the operating status of the power module 15 and the heating status of the heating device 30, which is not limited herein.
On the basis of the foregoing embodiment, the embodiment of the present disclosure further provides a refrigerator glass door, as shown in fig. 5, including: a hollow glass 20 and a rim 40 disposed around the hollow glass 20; a heating device 30, wherein the heating device 30 is arranged on the hollow glass 20; as any of the pressure regulating devices 10 described above, the pressure regulating device 10 is electrically connected to the heating device 30; has the corresponding beneficial effects, and is not repeated here for avoiding repeated description.
Wherein the heating device 30 includes at least one of an electrothermal film and an electrothermal wire; as shown in fig. 2, the heating device 30 is an electrothermal film, which is adhered to or electroplated on the inner surface of the hollow glass 20. As shown in fig. 5, the heating device 30 further includes heating electrodes disposed at opposite ends of the hollow glass 20 and electrically connected to the electrothermal film; heating wires may also be provided at the peripheral edge region of the hollow glass 20. The pressure regulating device 10 is electrically connected with the heating device 30, and the working voltage or the working power of the heating device 30 is regulated according to the ambient humidity, so that the hollow glass 20 is heated by the heating device 30, and the condensation on the hollow glass 20 is prevented.
It should be noted that, since there is a difference in the size of the glass door (i.e., the size of the hollow glass 20) of the refrigerators of different types, the operating voltage required for the heating device is different in order to prevent the condensation on the hollow glass 20, and thus, even in the refrigerator glass door in the same environment, there is a difference in the output voltage of the voltage regulator 10 due to the difference in the size of the hollow glass 20.
In some embodiments, as shown in fig. 5, the pressure regulating device 10 is embedded in the frame 40 of the glass door of the refrigerator, the frame 40 is provided with a detection hole, and the humidity sensor 12 is disposed in the detection hole and is exposed on the surface of the frame 40.
So set up, with pressure regulating device 10 embedded in the frame 40 of freezer glass door, on the one hand do not occupy the outer space of freezer glass door, do not influence the pleasing to the eye of freezer, on the other hand pressure regulating device 10 is not with environment direct contact, not fragile. The humidity sensor 12 is embedded in the frame 40, a detection hole penetrating through the thickness of the frame 40 is formed in the position right above the humidity sensor 12, the humidity sensor 12 penetrates through the detection hole and is exposed on the surface of the frame 40, and the humidity sensor 12 is in contact with ambient air of a refrigerator through the detection hole, so that the detection result is more accurate.
It can be understood that fig. 5 only exemplarily illustrates that the detection hole formed on the frame is circular, but does not constitute a limitation of the refrigerator glass door provided by the embodiments of the present disclosure. In other embodiments, the shape of the detection hole may be set according to the need, such as square or other shapes, which are not limited herein.
In some embodiments, the potentiometer and the status indicator lamp are embedded in the frame 40, and a corresponding number of holes are formed in the frame 40 right above the potentiometer and the status indicator lamp, so that the potentiometer and the status indicator lamp are exposed on the surface of the frame 40, and the maximum output voltage of the voltage regulating module is conveniently set and the status indicator lamp condition is conveniently observed.
In other embodiments, the potentiometer and the status indicator light may be integrated on the probe of the humidity sensor 12, so that the number of holes formed in the frame is reduced, and the assembly process is further simplified.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a pressure regulating device based on humidity, is applied to freezer glass door, its characterized in that includes: the refrigerator comprises a controller, a humidity sensor and a voltage regulating module, wherein the output end of the humidity sensor is connected with the controller, the control end of the controller is connected with the first input end of the voltage regulating module, and the output end of the voltage regulating module is connected with a heating device of the glass door of the refrigerator;
the humidity sensor is used for detecting the ambient humidity; the controller is used for outputting a corresponding matched pulse signal to the voltage regulating module according to the ambient humidity; the voltage regulating module is used for correspondingly regulating the output voltage provided for the heating device according to the pulse signal.
2. The pressure regulating device of claim 1, further comprising: a potentiometer; the potentiometer is electrically connected with the controller and is used for setting the maximum output voltage of the voltage regulating module.
3. The pressure regulating device of claim 1, further comprising: a power module; the input end of the power supply module is connected with the mains supply, and the output end of the power supply module is electrically connected with the controller, the humidity sensor and the voltage regulating module; the power module is used for converting commercial power into working voltages required by the controller, the humidity sensor and the voltage regulating module.
4. The pressure regulating device of claim 3, wherein the pressure regulating module further comprises a second input and a third input; the second input end is connected with the output end of the power supply module, and the third input end is connected with the live wire.
5. The voltage regulator of claim 4, wherein the voltage regulation module comprises one of a voltage regulation circuit and an electronic voltage regulator.
6. A pressure regulating device as defined in claim 3, further comprising: the input end of the filter is connected with a live wire and a zero wire, and the output end of the filter is connected with the voltage regulating module and the power supply module; the filter is used for reducing electromagnetic interference of the voltage regulating module to the mains supply.
7. A pressure regulating device as defined in claim 3, further comprising: status indicator lights; the state indicator lamp is electrically connected with the controller and used for indicating the power supply state of the power supply module and the heating state of the heating device.
8. A refrigerator glass door, comprising:
a hollow glass and a rim disposed around the hollow glass;
the heating device is arranged on the hollow glass;
the pressure regulating device according to any one of claims 1-7, wherein the pressure regulating device is electrically connected to the heating device.
9. The refrigerator glass door according to claim 8, wherein the pressure regulating device is embedded in a frame of the refrigerator glass door, a detection hole is formed in the frame, and the humidity sensor is arranged in the detection hole and is exposed on the surface of the frame.
10. The refrigerator glass door according to claim 8, wherein the heating means includes at least one of an electrothermal film and an electrothermal wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223521488.1U CN218936763U (en) | 2022-12-19 | 2022-12-19 | Pressure regulating device based on humidity and freezer glass door |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223521488.1U CN218936763U (en) | 2022-12-19 | 2022-12-19 | Pressure regulating device based on humidity and freezer glass door |
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| CN218936763U true CN218936763U (en) | 2023-04-28 |
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| CN202223521488.1U Active CN218936763U (en) | 2022-12-19 | 2022-12-19 | Pressure regulating device based on humidity and freezer glass door |
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