CN111256418A

CN111256418A - Sterilizing device for refrigerator and air-cooled refrigerator

Info

Publication number: CN111256418A
Application number: CN201811458838.XA
Authority: CN
Inventors: 李春阳
Original assignee: Qingdao Haier Co Ltd
Current assignee: Qingdao Haier Co Ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2020-06-09

Abstract

The invention provides a sterilizing device for a refrigerator and an air-cooled refrigerator. This a sterilizing apparatus for a refrigerator includes: a control circuit module, comprising: the power supply comprises a power supply input interface, a booster circuit and a high-voltage output interface. The power supply input interface is used for connecting an externally provided direct current power supply, the booster circuit is used for controllably converting the direct current power supply into a first voltage for generating ions and a second voltage for heating, and the high-voltage output interface is used for outputting the first voltage or the second voltage, wherein the first voltage is higher than the second voltage; the connection cable is used for connecting the high-voltage output interface and the ion generation module; an ion generation module configured to be ionized by a first voltage to release sterilizing ions and to be heated at a second voltage to eliminate condensation. The sterilization ions are released in an ionization excitation mode, a sterilization preparation does not need to be replaced, the sterilization device can be reliably used for a long time, and condensation can be eliminated by automatic heating so as to adapt to a low-temperature and humid application environment.

Description

Sterilizing device for refrigerator and air-cooled refrigerator

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to a sterilization device for a refrigerator and an air-cooled refrigerator.

Background

The refrigerator is a common household appliance, and the freshness date of food is prolonged by refrigerating and freezing. In order to ensure the refrigerating and freezing effect, the refrigerator body is required to have good sealing performance.

However, if food is stored in the sealed environment for a long period of time, particularly for fresh vegetables placed in a cold storage compartment, the water loss stimulates the fruits and vegetables to release ethylene, which promotes chloroplast disintegration, tissue cell membrane deterioration, and decreased storage and disease resistance. On the other hand, under the temperature condition of the refrigerating chamber, some bacteria still can live and breed, thereby constituting a threat to the food in the refrigerating chamber and causing the food in the refrigerating chamber to decay and deteriorate.

Particularly for air-cooled refrigerators, the supply airflow may carry bacteria within the storage compartment and spread these bacteria throughout the refrigerator. Bacteria may multiply in places where the user cannot see the difficult to clean, such as wind tunnels. This seriously affects the safety of the storage environment of the refrigerator, resulting in a great increase in the rate of deterioration of the stored goods.

Traditional processing mode is to place adsorption equipment or place germicide in refrigerator storing space, and the bactericidal effect is relatively poor on the one hand, needs often to change in addition, causes the user to use and experiences the decline.

Disclosure of Invention

An object of the present invention is to provide a sterilizing apparatus for a refrigerator and an air-cooled refrigerator which can remarkably improve the life span of the sterilizing apparatus.

Another object of the present invention is to enable a sterilizing apparatus to be reliably operated in a low-temperature and humid environment of a refrigerator.

According to an aspect of the present invention, there is provided a sterilizing apparatus for a refrigerator. The sterilizing apparatus for a refrigerator includes: a control circuit module, comprising: the power supply comprises a power supply input interface, a booster circuit and a high-voltage output interface. The power supply input interface is used for connecting an externally provided direct current power supply, the booster circuit is used for controllably converting the direct current power supply into a first voltage for generating ions and a second voltage for heating, and the high-voltage output interface is used for outputting the first voltage or the second voltage, wherein the first voltage is higher than the second voltage; the connection cable is used for connecting the high-voltage output interface and the ion generation module; an ion generation module configured to be ionized by a first voltage to release sterilizing ions and to be heated at a second voltage to eliminate condensation.

Optionally, the ion generation module comprises: an ionization head arranged with a first electrode and a second electrode connected to a connection cable, the first electrode and the second electrode having a discharge gap therebetween, the discharge gap being configured to be broken down by a first voltage such that ambient air is excited to ionize; and maintaining the first electrode isolated from the second electrode and each generating heat at a second voltage.

Optionally, the ion generation module further comprises: the base forms a mounting cavity for mounting the ionization head, and one surface of the mounting cavity is provided with an opening; and the ionization head is installed such that the discharge gap is exposed to the opening.

Optionally, the control circuit module further comprises: and the voltage feedback port is connected with the booster circuit and used for outputting feedback voltage corresponding to the first voltage or the second voltage so as to indicate the boosting state of the booster circuit.

Optionally, the control circuit module further comprises: and the controlled end is connected with the boosting circuit and is configured to receive an external control signal so that the boosting circuit converts the first voltage or the second voltage according to the control signal.

Optionally, the boost circuit comprises: the inverter is configured to controllably invert the direct-current power supply into alternating current, and the voltage of the alternating current is a first voltage or a second voltage.

Optionally, the effective value of the first voltage ranges from 2000 to 5000V; the effective value of the second voltage ranges from 1000 to 1800V.

Optionally, the length of the connection cable ranges from a length shorter than 100 centimeters.

Optionally, the sterilization apparatus further comprises: and the electric control box defines a closed accommodating cavity for installing the control circuit module.

According to another aspect of the invention, an air-cooled refrigerator is also provided. The air-cooled refrigerator comprises a refrigerator body, a refrigerator door and a refrigerator door, wherein a storage compartment is defined; the air supply duct is used for providing refrigerating airflow to the storage compartment; the sterilizing device is any one of the sterilizing devices, and the ion generating module of the sterilizing device is arranged in the air supply duct and used for releasing sterilizing ions into the refrigerating airflow.

According to the sterilization device for the refrigerator, sterilization ions are released in an ionization excitation mode, a sterilization preparation does not need to be replaced, the sterilization device can be reliably used for a long time, and condensation can be eliminated by automatic heating so as to adapt to a low-temperature and humid application environment. The sterilizing device for the refrigerator is provided with a control circuit module and an ion generating module, wherein the control circuit module provides power supplies with different voltages for the ion generating module, so that the ion generating module can be heated under a first voltage to eliminate condensation; and to initiate ionization at a second voltage to release bactericidal ions.

Furthermore, the control circuit module and the ion generation module are connected through a connecting cable, the control circuit module can be arranged in a foaming layer or other sealing areas of the refrigerator, and the ion generation module is placed in an air channel or exposed in a storage room, so that the reliability of the control circuit module can be ensured. On the other hand, the overlarge occupied area of the air duct is avoided, and the airflow noise is avoided.

In addition, the control circuit module and the ion generation module are arranged separately, and the control circuit module is far away from the air in the storage space or the air channel, so that the control circuit module can be prevented from being damaged and invalid by cooled air or a high-humidity environment in a refrigerator, particularly, moisture in the cooled air is prevented from entering the control circuit module, and the service life of the sterilization device is obviously prolonged.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic structural view of a sterilization apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic block diagram of the sterilization device shown in FIG. 1 from another perspective;

fig. 3 is a circuit block diagram of a sterilization apparatus for a refrigerator according to an embodiment of the present invention;

fig. 4 is a schematic circuit diagram of a sterilization apparatus for a refrigerator according to an embodiment of the present invention;

FIG. 5 is a schematic exploded view of the odor elimination and sterilization device of FIG. 1;

FIG. 6 is a schematic partial block diagram of the odor elimination and sterilization apparatus shown in FIG. 1;

FIG. 7 is a schematic cross-sectional view of the odor elimination and sterilization device of FIG. 1;

FIG. 8 is another schematic cross-sectional view of the odor elimination and sterilization device of FIG. 1;

fig. 9 is a schematic partial structural view of a refrigerator according to one embodiment of the present invention;

FIG. 10 is a schematic block diagram of a damper assembly of the refrigerator shown in FIG. 9;

FIG. 11 is a schematic block diagram of the air duct assembly of FIG. 10;

FIG. 12 is a schematic exploded view of the air duct assembly shown in FIG. 10;

fig. 13 is a schematic view of airflow in the air duct assembly and the storage space in the refrigerator of fig. 9.

Detailed Description

Fig. 1 is a schematic configuration view of a sterilization apparatus 400 for a refrigerator according to an embodiment of the present invention, and fig. 2 is a schematic configuration view of another view of the sterilization apparatus 400 shown in fig. 1. The embodiment of the invention provides a sterilization device 400 for a refrigerator, which comprises a control circuit module 410, an ion generation module 420 and a connection cable 430. A connection cable 430 electrically connects the control circuit module 410 and the ion generation module 420 such that the control circuit module 410 controls the ion generation module 420 to ionize the air to produce an odor elimination sanitizing substance. Because the control circuit module 410 and the ion generation module 420 are separately arranged, the control circuit module 410 is far away from the air in the storage space or the air duct, so that the control circuit module 410 can be prevented from being damaged and invalid by cooled air or a high-humidity environment in a refrigerator, particularly, moisture in the cooled air is prevented from entering the control circuit module 410, and the service life of the sterilization device 400 is remarkably prolonged.

Fig. 3 is a circuit block diagram of a sterilization apparatus 400 for a refrigerator according to one embodiment of the present invention, and fig. 4 is a circuit schematic diagram of the sterilization apparatus 400 for a refrigerator according to one embodiment of the present invention. The control circuit module 410 includes: a power input interface 440, a boost circuit 450, and a high voltage output interface 460.

The power input interface 440 is used for connecting an externally provided dc power supply, which may be a control power supply of the refrigerator, for example, a dc power of 5V or 12V. When the power input interface 440 is connected to a dc power source, the control circuit module 410 starts to operate.

The voltage boost circuit 450 is used to controllably convert the dc power supply into a first voltage for generating ions and a second voltage for heating, the first voltage being higher than the second voltage. The boost circuit 450 may include an inverter 443, and the inverter 443 may be configured to controllably invert the direct-current power source into a high-voltage alternating current having a voltage of a first voltage or a second voltage. The inverter 443 has two operating states, respectively for inverting a first voltage and a second voltage. The boost circuit 450 may further include auxiliary circuits such as a boost transformer and a protection circuit, and the circuit structure of the inverter, the boost transformer, the protection circuit, and the like are well known to those skilled in the art, and therefore, detailed descriptions thereof are omitted in the description of the embodiment.

The voltage values of the first voltage and the second voltage may be set according to the specification of the ion generation module 420, wherein the first voltage satisfies the ionization excitation requirement of the ion generation module 420, and the second voltage may heat the electrodes of the ion generation module 420. For example, in a specific ion generation module 420 of this embodiment, the effective value of the first voltage ranges from 2000V to 5000V, and further may preferably range from 2800V to 4000V, for example, about 3500V; the effective value of the second voltage ranges from 1000 to 1800V, more preferably from 1200V to 1600V, for example, around 1500V.

The high voltage output interface 460 is used for outputting a first voltage or a second voltage.

The cable 430 is connected to the high voltage output interface 460 of the control circuit module 410 to transmit the first voltage and the second voltage to the ion generating module 420. The connection cable 430 may include two cables, and the connection cable 430 has an insulation layer capable of securing insulation of the first voltage and the second voltage. In order to ensure reliable transmission of the high first voltage and the high second voltage and reduce the line loss, the length of the connection cable 430 should not be too long, and the connection cable may extend from the arrangement position of the control circuit module 410 to the ion generation module 420. Generally the length of the connection cable 430 is required to be shorter than 100cm, preferably shorter than 30 cm.

The control circuit module 410 is also provided with a voltage feedback port 441. The voltage feedback port 441 is connected to the voltage boosting circuit 450, and is configured to output a feedback voltage corresponding to the first voltage or the second voltage to indicate a boosting state of the voltage boosting circuit. The boosting circuit 450 may feed back its operation state to the voltage feedback port 441, for example, outputting a relatively high level when outputting the first voltage and outputting a relatively low level when outputting the second voltage.

The voltage feedback port 441 may be integrated with the power input interface 440 as an input, for example, into a multi-port connector. The control circuit module 410 may further include a controlled terminal 442, wherein the controlled terminal 442 is connected to the voltage boosting circuit 450 and configured to receive an external control signal (the control signal may be a control signal sent by a main control board of the refrigerator or other controllers of the refrigerator, so as to adjust the operating state of the sterilization apparatus 400 according to the operation condition of the refrigerator), so that the voltage boosting circuit 450 converts the first voltage or the second voltage according to the control signal.

The input terminal of the control circuit module 410 may be a four-terminal interface (four terminals are the positive and negative terminals of the dc power supply, the voltage feedback port 441, and the controlled terminal 442). The input end can be connected with a main control board of the refrigerator.

The sterilization apparatus 400 may also be connected to a current detection apparatus 470. The current detection device 470 is configured to detect a current value provided to the power input interface 440 for determining an operation state of the sterilization device 400. The current detection device 470 may be included in series with the power line supplying power to the power input interface 440. It is possible to determine whether the sterilizing apparatus 400 is normally operated using the detected current of the current detecting means 470.

The control circuit module 410 may be disposed within an electrical control pod 481 and the electrical control pod 481 may be used to define a closed housing chamber in which the control circuit module 410 is mounted.

The ion generation module 420 is configured to be ionized by a first voltage to release sterilizing ions and heated at a second voltage to eliminate condensation. The ion generation module 420 may include an ionization head 421. The ionization head 421 is arranged with a first electrode 423 and a second electrode 424 connected to a connection cable 430, the first electrode 423 and the second electrode 424 having a discharge gap therebetween, the discharge gap being configured to be broken down by a first voltage such that ambient air is excited to ionize; and at a second voltage to keep the first electrode 423 isolated from the second electrode 424 and each generating heat.

The ion generating module 420 may further include a base 482, the base 482 forming a mounting cavity for mounting the ionization head 421, one side of the mounting cavity having an opening; and the ionization head 421 is installed such that the discharge gap is exposed to the opening.

Fig. 5 to 8 show a specific mechanical configuration of the sterilization apparatus. The electric control box 481 includes a first box 411 and a second box 412 clamped to the first box 411. The inner side of the second box 412 is provided with a boss 414, and the inner side of the first box 411 is provided with a support column 415. The control circuit module 413 includes a circuit board 416, one side of the circuit board 416 being in contact against the boss 414 and the other side being in contact against the support post 415.

In some embodiments of the invention, second enclosure 412 includes a first base, a first perimeter wall 417, and a second perimeter wall 418. The first and second

peripheral walls

417 and 418 extend from the same side of the first substrate, and

the first peripheral wall 417 is outside the second peripheral wall 418. The first peripheral wall 417 is provided with a plurality of click holes 451. A plurality of snaps 452 are formed on a peripheral wall of the first case 411, and the peripheral wall of the first case 411 is inserted between the first and second

peripheral walls

417 and 418, and each of the snaps 452 is inserted into one of the snap holes 451.

The first case 411 may further include a second substrate, and the peripheral wall of the first case 411 includes: a peripheral wall base 453 extending from an edge of the second substrate to one side of the second substrate; and a plurality of peripheral wall segments 454 extending from the distal end of the peripheral wall base 453 and arranged at intervals in the direction of the peripheral wall base 453. Each clip 452 is connected to a distal end of perimeter wall base 453 and is disposed between two adjacent perimeter wall segments 454 and spaced from a respective perimeter wall segment 454; the number of gaps between two adjacent peripheral wall segments 454 is greater than the number of catches 452, and can be used for connecting cables 430 to pass through. I.e., the gap between two adjacent peripheral wall segments 454, comprises a plurality of snap gaps and at least one threading gap. Each of the catches 452 is connected to a distal end of the perimeter wall base 453 and is disposed within one of the catch notches and spaced from a respective perimeter wall section 454; the connection cable 430 passes through the threading notch.

The positions, corresponding to the clamping holes 451, of the second peripheral wall 418 are provided with abdicating grooves; the first substrate is provided with communication holes at positions adjacent to the locking holes 451, and the communication holes communicate with the gap between the first circumferential wall 417 and the second circumferential wall 418, so that water between the first circumferential wall 417 and the second circumferential wall 418 can flow out. Also, the peripheral wall of the first case 411 is in contact abutment with the first peripheral wall 417. The length of the catch hole 451 in the circumferential direction of the first circumferential wall 417 is greater than the length of the corresponding catch 452. A support plate 455 is provided inside the peripheral wall of the first case 411. The lower end of plate 455 is in contact against second peripheral wall 418. This arrangement facilitates outflow of condensed water and the like in the electric control box 481.

In some embodiments of the present invention, a side of the circuit board 416 facing the boss 414 is provided with a plurality of heat-dissipating studs 419.

The embodiment of the invention also provides the air-cooled refrigerator. The air-cooled refrigerator may include a cabinet 200. The cabinet 200 may include a case made of a steel plate having an open front side, an inner container made of a synthetic resin and provided in an inner space of the case and having an open front side, and a heat insulating material made of a foamed polyurethane formed by filling a gap between the case and the inner container with foam. A storage compartment for storing food and the like is formed in the case 200. According to the preservation temperature and the usage, the interior of the storage compartment is divided into a storage space 210 and at least one other storage compartment, such that the storage space 210 is a first storage compartment and the other storage compartments can be second storage compartments. The first storage compartment can be a refrigerating space, a freezing space and/or a temperature-changing compartment, and the like, and the second storage compartment can also be a refrigerating space, a freezing space and/or a temperature-changing compartment, and the like. The first storage compartment is preferably a refrigerated space; the second storage compartment is preferably a refrigerated space and is disposed below the first storage compartment. At least one other storage compartment also comprises a freezing chamber, and the cooling chamber is arranged at the rear side of the second storage compartment.

As can be appreciated by those skilled in the art, the air-cooled refrigerator according to the embodiment of the present invention may further have a cooling system for supplying cool air to the storage compartment, and an air supply system. Since the structure of the cabinet, the refrigeration system and the air supply system of the air-cooled refrigerator are well known to those skilled in the art, further description is omitted in this embodiment.

In particular, the air-cooled refrigerator may further include the sterilization apparatus 400 of any of the above embodiments. The ion generating module 420 of the sterilization device 400 is directly disposed in the storage space 210 or disposed in an air duct communicating with the storage space 210. For example, a circulation sterilizing air duct specially used for sterilizing the air-cooled refrigerator and communicated with the storage space 210 may be provided, and the ion generating module 420 is provided in the circulation sterilizing air duct. The control circuit module can be arranged in a foaming layer or other sealing areas of the refrigerator, so that the isolation of the control circuit module from a humid environment is ensured, and the reliability is improved. And the ion generation module can avoid condensation by self-heating.

In some embodiments of the present invention, as shown in fig. 9 to 13, the air-cooled refrigerator may further include a duct assembly 300 for transferring air cooled by the evaporator to the storage space 210, a return air duct for delivering the air flowing out of the storage space 210 to the evaporator for cooling, and a blower for driving the air cooled by the evaporator to flow toward the storage space 210. The air duct assembly 300 has at least one supply air duct 310.

Specifically, a housing space 320 is provided in the cabinet 200 or the duct assembly 300, and the housing space 320 is located outside each of the supply air ducts 310. The control circuit module 410 is disposed in the accommodating space 320. The ion generating module 420 is disposed in a supply air duct 310. The connection cable 430 electrically connects the control circuit module 410 and the ion generation module 420. The control circuit module 410 controls the ion generation module 420 through the connection cable 430, and the ion generation module 420 ionizes air to generate germicidal ions.

The odor removing and sterilizing substance can enter the storage space 210 along with the cooled air, and the odor removing and sterilizing substance has high diffusion speed and is uniformly distributed in the storage space 210 along with the air flow. The control circuit module 410 is separated from the ion generation module 420, and the control circuit module 410 is disposed outside the air duct, so that damage and failure of the control circuit module 410 caused by cooled air or a high-humidity environment in the air-cooled refrigerator can be prevented, and particularly, moisture in the cooled air is prevented from entering the control circuit module 410. The control circuit module 410 does not occupy the space of the air supply duct 310, so that the air supply duct 310 supplies air smoothly. Further, the release and stop of the odor-removing and sterilizing substance can be controlled by opening and closing the air supply duct 310, that is, after the air supply duct 310 is closed, no air flow exists, and the odor-removing and sterilizing substance does not flow along with the air flow for sterilization, which is equivalent to the fact that the odor-removing and sterilizing substance stops releasing. Further, the control circuit module 410 may also stop the operation of the ion generating module 420 according to the closing of the corresponding air supply duct 310.

In some embodiments of the present invention, the odor elimination germicidal substance generated by the ion generation module 420 includes at least one of singlet reactive oxygen, superoxide radical, peroxy radical, oxyanion, hydroxyl radical, ozone, and hydrogen peroxide.

In a lower embodiment of the present invention, the at least one air supply duct 310 includes a first air duct 311 for supplying air to an upper portion of the storage space 210. An air return opening 220 is provided at a lower portion of the storage space 210. The ion generating module 420 is disposed in the first air duct 311. As shown in fig. 7 to 11, the arrangement can make the odor-removing and sterilizing substance distributed in the storage space 210 quickly and uniformly.

Preferably, the first duct 311 has two first air blowing ports, is disposed at both sides of the upper portion of the storage space 210, and flows the cooled air to both sides of the storage space 210. That is, each of the first blowing ports faces one sidewall of the storage space 210, and may be directed to the corresponding sidewall, may also face the corresponding sidewall obliquely forward, and may also face the corresponding sidewall obliquely downward.

In some embodiments of the present invention, the at least one supply air duct 310 is plural, and for example, further includes a second air duct and a third air duct. The second air duct may be disposed at one side of the first air duct 311, and the upper end of the second air duct is connected to two second air supply outlets, and each second air supply outlet is located at the lower side of one first air supply outlet. In order to facilitate the air flow, the second air supply outlet on the other side of the first air duct 311 may be communicated with the second air duct via a bridging air duct. The third air duct may be at the other side of the first air duct 311. The third air duct is used for conveying air flow to the bottom of the storage space 210. The air inlet of the air duct assembly 300 is provided with a branch air supply device 330, the branch air supply device 330 has a plurality of air outlets, and each air outlet is communicated with one air supply air duct 310.

In some embodiments of the present invention, the duct assembly 300 further includes a duct foam 340 and a duct cover 350. The rear side of the duct foam 340 defines at least one supply air duct 310. The duct foam 340 may define the air supply duct 310 with the rear wall surface of the inner container. Alternatively, the air duct assembly 300 further includes an air duct bottom plate installed on the rear wall surface of the corresponding inner container. The duct foam 340 is mounted to the duct bottom plate and defines with the duct bottom plate at least one supply duct 310.

The front side of the air duct foam 340 is provided with a containing space 320 and a wire groove for communicating the containing space 320 with the first air duct 311; the connection cable 430 is mounted to the wire duct. The duct cover 350 is mounted to the front side of the duct foam 340. Specifically, the housing space 320 may be located on a side of the first air duct 311 away from the second air duct and on an upper side of the first air duct 311, so as to fully and reasonably arrange the air duct assembly 300. The wire groove is obliquely disposed, and the ion generation module 420 is disposed at a lower side of the control circuit module 410, so as to prevent condensed water and the like from entering the control circuit module 410 along the wire groove as much as possible.

The control circuit module 410 is mounted at an angle of at least 7 degrees from horizontal to remove water tension and thereby prevent water droplets from entering the middle of the circuit board 416. The first and second

circumferential walls

417 and 418 and the circumferential wall of the first case 411 may form a waterproof groove to prevent water from entering the circuit board 416.

Preferably, the accommodating space 320 and the front side of the wire slot are provided with a water blocking device 360, and the water blocking device 360 is located between the air duct cover plate 350 and the control circuit module 410. The water blocking device 360 is PE cotton. When the air duct cover plate 350 is installed, PE cotton may be attached to the rear surfaces of the control circuit module 410 and the ion generating module 420 for pre-fixing. PE cotton may be attached to the entire outer surface of the control circuit module 410.

In the air-cooled refrigerator provided by the embodiment of the invention, high-energy and high-activity free radicals such as atomic oxygen (O), hydroxyl (OH) and the like can be generated through bombardment and excitation of high-energy electrons generated by high-voltage discharge. The high-energy active free radicals directly and frequently and directly collide with the odor gas molecules, when the energy obtained by the odor gas molecules is larger than the binding energy of the molecular bond energy of the odor gas molecules, the original molecular structure of the odor gas molecules is destroyed, the molecular chemical bond is opened, the gaseous reaction is promoted to be rapidly carried out, and radicals and solid particles are generated. In addition, high-voltage discharge can ionize and decompose partial odor gas molecules at the same time. Under the action of the above principle, the sterilization device 400 is placed in the air duct, and all the free radicals are conveyed to each compartment of the air-cooled refrigerator through the circulation of the air duct, so that the effect of the free radicals on the full distribution of the compartments of the air-cooled refrigerator is achieved, and the odor removal and sterilization are performed on each compartment of the air-cooled refrigerator. And prevents water vapor from being condensed on the control circuit module 410 of the sterilizing device 400 by an effective placing manner and a sealing measure, and simultaneously can drain away the condensed water even if the condensed water is accumulated.

It will be understood by those skilled in the art that the term "refrigerator" as used herein is not limited to a refrigerator having a refrigerating chamber and a freezing chamber in a general sense for storing food, but may be other devices having a refrigerating function, such as wine chests, refrigerating cans, etc.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. A sterilization apparatus for a refrigerator, comprising:

a control circuit module, comprising: the ion source heating device comprises a power input interface, a booster circuit and a high-voltage output interface, wherein the power input interface is used for connecting an externally provided direct-current power supply, the booster circuit is used for controllably converting the direct-current power supply into a first voltage for generating ions and a second voltage for heating, and the high-voltage output interface is used for outputting the first voltage or the second voltage, wherein the first voltage is higher than the second voltage;

the connection cable is used for connecting the high-voltage output interface and the ion generation module;

the ion generation module is configured to be excited by the first voltage to ionize so as to release bactericidal ions, and generate heat under the second voltage so as to eliminate condensation.

2. The sterilization device of claim 1, wherein the ion generation module comprises:

an ionization head arranged with a first electrode and a second electrode connected to the connection cable, the first electrode and the second electrode having a discharge gap therebetween, the discharge gap being configured to be broken down by the first voltage such that ambient air is excited to ionize; and maintaining the first electrode isolated from the second electrode and each generating heat at the second voltage.

3. The sterilization device of claim 2, wherein the ion generation module further comprises:

the base forms a mounting cavity for mounting the ionization head, and one surface of the mounting cavity is provided with an opening; and is

The ionization head is mounted such that the discharge gap is exposed to the opening.

4. The sterilization device of claim 1, wherein the control circuit module further comprises:

and the voltage feedback port is connected with the booster circuit and used for outputting feedback voltage corresponding to the first voltage or the second voltage so as to indicate the boosting state of the booster circuit.

5. The sterilization device of claim 1, the control circuit module further comprising:

and the controlled end is connected with the boosting circuit and is configured to receive an external control signal so that the boosting circuit converts the first voltage or the second voltage according to the control signal.

6. The sterilization apparatus according to claim 1, wherein the voltage boosting circuit comprises:

an inverter configured to controllably invert the direct current power source into an alternating current having a voltage of a first voltage or a second voltage.

7. The sterilization device of claim 6, wherein

The value range of the effective value of the first voltage is 2000-5000V;

the effective value of the second voltage ranges from 1000V to 1800V.

8. The sterilization device according to claim 1, wherein

The length of the connection cable is shorter than 100 cm.

9. The sterilization device of claim 1, further comprising:

and the electric control box defines a closed accommodating cavity for mounting the control circuit module.

10. An air-cooled refrigerator comprising:

the box body defines a storage chamber;

the air supply duct is used for providing refrigerating airflow to the storage compartment;

the sterilization device according to any one of claims 1 to 9, wherein an ion generation module of the sterilization device is disposed in the air supply duct and configured to release sterilization ions into the cooling air flow.