CN104654729A - Multifunctional illuminating system for refrigerator - Google Patents

Abstract

The invention relates to a multifunctional illuminating system for a refrigerator. The multifunctional illuminating system comprises a white light LED (Light Emitting Diode) illuminating module, a freshness keeping module, a sterilizing module, a deodorizing module and a control module, wherein driving devices of the illuminating module, the freshness keeping module, the sterilizing module and the deodorizing module are controlled and regulated by the control module. According to the multifunctional illuminating system for the refrigerator, the illuminating module, the freshness keeping module, the sterilizing module and the deodorizing module are integrally mounted, and the situation that the functions of an illuminating system for the refrigerator are single is changed, so that the multifunctional illuminating system has multiple functions of freshness keeping, sterilizing, deodorizing and the like besides the illuminating function.

Description

A Multifunctional Refrigerator Lighting System

technical field

The invention belongs to the technical field of semiconductor lighting, and in particular relates to a multifunctional refrigerator lighting system.

Background technique

With the development of modern technology and the improvement of people's living standards, refrigerators have become an indispensable part of people's lives, but now people also have higher and higher requirements for refrigerators to keep fresh, sterilize and deodorize. The fresh-keeping measures of general refrigerators are to suppress the respiration of fruits and vegetables by low temperature, or remove the ripening gas in fruits and vegetables by activated carbon, catalyst, etc., so as to delay the ripening time of fruits and vegetables, so as to maintain the freshness of fruits and vegetables. However, the fresh-keeping period of fruits and vegetables is only 3 days, which is difficult to meet people's requirements for fresh-keeping. Light is an indispensable condition for green plants to carry out photosynthesis. Photosynthesis is the sum of a series of complex metabolic reactions of green plants. It is the basis for the survival of the biological world and an important medium for the earth's carbon-oxygen cycle. Preservation through photosynthesis is a fresh-keeping method that is different from traditional freezing preservation and chemical substance preservation. At present, there are many fresh-keeping refrigerators that use photosynthetic fresh-keeping methods on the market, but these light sources lack pertinence and cannot illuminate vegetables and fruits with different colors and durations, thus failing to achieve the expected fresh-keeping effect.

Patent CN200620016857.3 discloses a fresh-keeping refrigerator, which adopts a photo-preservation device for promoting photosynthesis of fruits and vegetables, and consists of a light source, a control panel and a mounting seat. The refrigerator introduced in this patent uses purple or blue or orange or red light groups, although it can prolong the freshness period, but it cannot inhibit the growth of bacteria and other microorganisms in the refrigerator, which will also affect the freshness of the ingredients in the refrigerator and affect the effect of freshness preservation. .

There are many technologies that can be used to eliminate bacteria in the air, such as chemical sterilization, ozone sterilization, traditional low-pressure mercury lamp ultraviolet light sterilization, etc. Chemical sterilization technology uses chemical reagents to sterilize, chemical reagents are easy to remain on the surface of objects, and the harmful substances produced are not easy to degrade, which brings potential harm to human body and environment; ozone sterilization technology uses high voltage to stimulate air discharge to generate ozone , Ozone destroys the structure of the microbial membrane by the oxidation of oxygen atoms to achieve bactericidal effect; the principle of ultraviolet sterilization is that the energy of ultraviolet photons is absorbed by the base pairs in DNA, causing genetic material to mutate, causing the bacteria to die immediately or cannot reproduce. So as to achieve the purpose of sterilization. The first two methods are obviously not suitable for the refrigerator environment, while the ultraviolet sterilization technology can be used to sterilize the space in the refrigerator. The commonly used ultraviolet light source is a low-pressure mercury lamp, which uses a low-pressure mercury vapor discharge to generate ultraviolet radiation. However, the use of low-pressure mercury lamps in the refrigerator has some disadvantages: first, the discharge substance mercury of the low-pressure mercury lamp is a heavy metal, which is very harmful to the human body if it is damaged and leaks, and it is not conducive to repair and maintenance after the glass lamp tube is damaged; the second is the switch Refrigerator doors cause low-pressure mercury lamps to start frequently, shortening their lifespan.

Patent CN200920238236.3 discloses a refrigerator with a magnetic field light wave sterilization and preservation device. On the top or side of the refrigerator liner, the magnetic field light wave sterilization and preservation device is fixed by screws or clips. Although it has an excellent bactericidal effect, it uses ozone to sterilize, and the residual ozone is relatively harmful to the human body.

In addition, after the refrigerator is used for a long time, the bacteria in the stored food will multiply and produce organic compounds on the liner of the refrigerator and its shelves, resulting in a bad smell in the refrigerator. In order to solve the above problems, adding antibacterial materials to the inner liner or shelf of the refrigerator can effectively inhibit the reproduction of bacteria on the inner liner and the shelf, but it cannot deodorize; add adsorption equipment in the refrigerating chamber of the refrigerator to achieve antibacterial The odor in the refrigerator is adsorbed, but the adsorption material in the adsorption equipment is easily saturated, and it cannot be deodorized for a long time, and it is inconvenient to replace.

Patent CN200410010041.5 discloses a photocatalyst negative ion sterilizing refrigerator, which uses ultraviolet light to generate ozone, and then uses a fan to blow the negative ions generated by the negative ion generator into the refrigerator for sterilization and deodorization. The refrigerator described in this patent uses the generated ozone and negative ions to carry out sterilization and deodorization. The combination of the two improves the sterilization and deodorization effect of the refrigerator, but this method has the problem of residual ozone, and requires negative ion generators, ultraviolet lamps, etc. , micro-circulation fan, shading plate and other equipment, so that the deodorizing device has many parts and complex structure, which increases the manufacturing cost of the sterilizing and deodorizing device.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and provide a multifunctional refrigerator lighting system with reasonable structural design and remarkable effect. The integrated installation of modules has changed the status quo of the single function of the refrigerator lighting system, enabling it to have multiple functions such as freshness preservation, sterilization and deodorization in addition to the lighting function.

The technical solution adopted by the present invention to solve the above problems is:

A multi-functional refrigerator lighting system, including a white LED lighting module for lighting functions, and also includes a fresh-keeping module, a sterilization module, a deodorization module and a control module, and the driving of the lighting module, the fresh-keeping module, the sterilization module and the deodorization module The device is controlled and regulated by the control module. The multi-functional lighting system of the refrigerator integrates the lighting module, fresh-keeping module, sterilization module and deodorization module, which changes the status quo of the single-function refrigerator lighting system, making it perform fresh-keeping, sterilization and deodorization functions in addition to lighting functions and other functions.

Preferably, the fresh-keeping module includes a red LED packaging device and a blue LED packaging device, the peak wavelength of the red light emitted by the red LED packaging device is 620-700nm, and the peak wavelength of the blue light emitted by the blue LED packaging device is 440-480nm . The use of red and blue LED packaging devices as fresh-keeping light sources can maximize the photosynthesis of plants, effectively slow down the loss of nutrients such as chlorophyll, vitamin C content, and soluble solid substances, and prolong the freshness of fruits and vegetables. The purpose of keeping fresh.

Preferably, the sterilization module includes a UVC-LED packaging device, and the peak wavelength of light emitted by the UVC-LED packaging device is 200-285 nm. Ultraviolet light with a peak wavelength in the range of 200-285 nm is used for sterilization, and the sterilization effect is the strongest.

Preferably, the control module controls the sterilization module to turn off the UVC-LED packaging device when the refrigerator door is opened. When the refrigerator door is opened, the UVC-LED packaging device is turned off to effectively prevent ultraviolet rays from harming the human body. The UVC-LED packaging device is turned on for half an hour to achieve effective sterilization while reducing energy consumption.

Preferably, the deodorization module includes a UV-LED packaging device and a nano-photocatalytic coating, the thickness of the nano-photocatalytic coating is 10 nm to 20 μm, and the nano-photocatalytic coating is a nano-titanium dioxide water-soluble coating or Nano-titanium dioxide coating; the peak wavelength of the light emitted by the UV-LED packaging device is 200-400 nm. When the ultraviolet light emitted by the UVA-LED irradiates the photocatalytic coating, a catalyst is produced to effectively decompose harmful compounds released by dead bacteria, odorous gases released by refrigerated vegetables, fruits and food, and promote the degradation of organic matter, thereby achieving deodorization. effect.

Preferably, the deodorization module works by using a high-voltage electrostatic field to drive plasma wind to generate a circulating air flow. Thereby accelerating the degradation of organic matter and improving the effect of deodorization.

Preferably, the control module is also provided with a timer for controlling the working cycles of the fresh-keeping module, the sterilization module and the deodorization module. The timer is used to control the working cycle of the fresh-keeping module, the sterilization module and the deodorization module, so that the energy consumption can be greatly reduced while achieving their respective effects.

Preferably, the control module is externally connected with a plurality of buttons for manually controlling the working states of the fresh-keeping module, the sterilization module and the deodorization module respectively. The control module is externally connected with multiple buttons, so that the multifunctional lighting system can be controlled manually.

Preferably, the control module is provided with a remote control port for remote control by an intelligent terminal.

Compared with the prior art, the present invention has the following advantages and effects: the LED refrigerator lighting system with functions of illumination, freshness preservation, sterilization and deodorization in the present invention combines four functional modules of illumination, freshness preservation, sterilization and deodorization, and utilizes Visible and ultraviolet LEDs realize the lighting function and expansion function required by the refrigerator, reduce the assembly process of the refrigerator, save the space inside the refrigerator, and make it more convenient for people to use the refrigerator. In addition, the present invention uses red and blue LED light sources to promote plant photosynthesis, and the mixing ratio of red and blue light can be adjusted, which can achieve a better fresh-keeping effect; use UVC-LED light sources to destroy DNA in microorganisms such as bacteria and viruses The structure realizes the sterilization function and avoids the harm of ozone residue to the human body; the UV-LED light source is used to irradiate the nano-photocatalytic coating to promote the degradation of organic matter and eliminate odors, which can be used repeatedly for a long time, avoiding the need for frequent replacement of adsorbents maintenance costs.

Description of drawings

Fig. 1 is a schematic diagram of a multifunctional refrigerator lighting system.

Fig. 2 is a structural schematic diagram of the back of the multifunctional refrigerator lighting system.

Fig. 3 is a schematic structural view of the front of the lighting system of the multifunctional refrigerator.

Fig. 4 is a side view of the deodorizing module of the multifunctional refrigerator lighting system.

Fig. 5 is a top view of the deodorizing module of the multifunctional refrigerator lighting system.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.

A multifunctional refrigerator lighting system as shown in Figures 1 to 5 includes a base plate on which four functional modules and a control module 5 are integrated. The four functional modules are a lighting module, a fresh-keeping module, a sterilization module and a odor module; these four functional modules of lighting module, fresh-keeping module, sterilization module and deodorization module are all controlled by the control module 5 .

The lighting module includes a lighting module LED driver 1 and a white LED packaging device 6 , and the lighting module LED driver 1 and the white LED packaging device 6 are electrically connected. The lighting module adopts 4500 K white light LED packaging device 6 with a color rendering index of 90. A lampshade is mounted on the surface of the white LED packaging device 6 . When the refrigerator door is opened, the white light LED light source provides illumination for the interior of the refrigerator; when the refrigerator door is closed, the white light LED is also turned off immediately.

The fresh-keeping module includes a fresh-keeping module LED driver 2 , a red LED packaging device 7 and a blue LED packaging device 8 , and the red LED packaging device 7 and the blue LED packaging device 8 are electrically connected to the fresh-keeping module LED driver 2 respectively. A lampshade is installed on the surface of the red LED packaging device 7 and the blue LED packaging device 8 . The fresh-keeping module uses two sets of red and blue LEDs as the photosynthetic fresh-keeping light source. The peak wavelength of the red LED package device 7 is 670 nm, and the peak wavelength of the blue LED package device 8 is 420 nm. When the refrigerator door is closed, the red and blue LEDs, which are used as photosynthetic and fresh-keeping light sources, light up to enable plants to undergo photosynthesis, which can effectively slow down the loss of nutrients such as chlorophyll, vitamin C content, and soluble solid substances, and prolong the freshness of fruits and vegetables. Make the refrigerator achieve the purpose of keeping fresh.

The sterilizing module includes a sterilizing module LED driver 3 and a UVC-LED packaging device 9 , the two are electrically connected, and no lampshade is installed on the surface of the UVC-LED packaging device 9 . The sterilization module adopts UVC-LED packaging device 9 with a peak wavelength of 268 nm, which has a strong sterilization ability. Start the UVC-LED packaging device 9 when the refrigerator door is closed, and control the opening time within half an hour through the timer; when the refrigerator door is opened, the UVC-LED packaging device 9 is automatically turned off immediately to prevent ultraviolet rays from harming the human body .

The deodorization module includes a deodorization module LED driver 4, several UV-LED packaging devices 10, a group of stainless steel wires 11, and a stainless steel mesh 12. The formed nano-photocatalytic coating 13. The combination of ultraviolet light emitted by the UV-LED packaging device 10 and the nano-photocatalytic coating 13 has a strong degradation effect and can decompose odorous gas molecules to achieve deodorization. A certain voltage is applied between the stainless steel wire 11 and the stainless steel mesh 12, so that the stainless steel wire 11 is negatively charged to become a cathode, and the stainless steel mesh 12 is positively charged to become an anode, then a corona discharge is generated between the two to form a plasma, and the ions are charged in the static electricity. Under the action of the field, it moves towards the cathode, forming an ion wind and causing gas flow. The deodorization module is ventilated on both sides, and the high-voltage electrostatic field generated by the corona discharge drives the plasma wind to form a gas cycle inside and outside the module, and the odor gas in the refrigerator is introduced into the deodorization module for photolysis. The deodorization module uses a UV-LED package device 10 with a peak wavelength of 365 nm combined with a nano-titanium dioxide photocatalytic coating to deodorize. When the ultraviolet light emitted by the UV-LED irradiates the photocatalytic coating, a catalyst is produced to effectively decompose harmful compounds released by dead bacteria, odorous gases released by refrigerated vegetables, fruits and food, and promote the degradation of organic matter, thereby achieving deodorization. effect.

The above content described in this specification is only an illustration of the present invention. Those skilled in the technical field to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, as long as they do not deviate from the content of the description of the present invention or exceed the scope defined in the claims , should belong to the protection scope of the present invention.

Claims (9)

1. A multi-functional refrigerator lighting system, comprising a white LED lighting module for lighting function, characterized in that: it also includes a fresh-keeping module, a sterilization module, a deodorizing module and a control module, the lighting module, the fresh-keeping module, and the sterilization module and the driving device of the deodorizing module are controlled and regulated by the control module. 2. A multifunctional refrigerator lighting system according to claim 1, characterized in that: the fresh-keeping module includes a red LED packaging device and a blue LED packaging device, and the red light emitted by the red LED packaging device has a peak wavelength of 620-700nm, the peak wavelength of the blue light emitted by the packaged device of the blue light LED is 440-480nm. 3. A multifunctional refrigerator lighting system according to claim 1, wherein the sterilization module includes a UVC-LED packaging device, and the peak wavelength of light emitted by the UVC-LED packaging device is 200-285 nm . 4 . The multifunctional refrigerator lighting system according to claim 3 , wherein the control module controls the sterilization module to turn off the UVC-LED packaging device when the refrigerator door is opened. 5. A multifunctional refrigerator lighting system according to claim 1, characterized in that: said deodorizing module comprises a UV-LED encapsulation device and a nano photocatalytic coating, the thickness of said nano photocatalytic coating is 10 nm to 20 μm, the nano photocatalytic coating is a nano-titanium dioxide water-soluble coating or a nano-titanium dioxide coating; the peak wavelength of the light emitted by the UV-LED packaging device is 200-400 nm. 6 . The lighting system for a multifunctional refrigerator according to claim 5 , wherein the deodorizing module works by driving plasma wind with a high-voltage electrostatic field to generate a circulating air flow. 7 . 7. The lighting system of a multifunctional refrigerator according to claim 1, wherein the control module is further provided with a timer for controlling the working cycles of the fresh-keeping module, the sterilization module and the deodorization module. 8 . The lighting system for a multifunctional refrigerator according to claim 1 , wherein the control module is externally connected with a plurality of buttons for manually controlling the working states of the fresh-keeping module, the sterilization module and the deodorization module. 9. A lighting system for a multifunctional refrigerator according to claim 1, wherein the control module is provided with a remote control port for remote control by an intelligent terminal.