CN212538416U

CN212538416U - LED illumination fresh-keeping refrigerator

Info

Publication number: CN212538416U
Application number: CN202021066939.5U
Authority: CN
Inventors: 王金锋; 马星星; 谢晶; 周鹏辉; 张雨宸
Original assignee: Shanghai Ocean University
Current assignee: Shanghai Ocean University
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-02-12
Anticipated expiration: 2030-06-11

Abstract

The utility model relates to a fruit vegetables food field of storing that keeps fresh, concretely relates to LED illumination refrigerator that keeps fresh. The LED illumination fresh-keeping refrigerator comprises a refrigerator body, a refrigerating system, a touch display screen, a temperature control system and an LED illumination sterilization system. And an LED lamp strip is independently arranged on the upper part of each layer of partition plate in the refrigerator body. The type of the vegetables is selected through the touch display screen, and the light-emitting color RGB numerical value and the light-emitting interval duration of the lamp strip are controlled through the single chip microcomputer according to the type and the requirement of different vegetables. The utility model provides a technical scheme shines the joint implementation of technique and low temperature preservation technique through LED light, is showing the fresh-keeping time of extension vegetables and is promoting the storage quality.

Description

LED illumination fresh-keeping refrigerator

Technical Field

The utility model relates to a fruit vegetables food fresh-keeping field of storing especially relates to a show fresh-keeping refrigerator of LED illumination of fresh-keeping time of extension vegetables and promotion storage fruit vegetables quality.

Background

With the deep concept of healthy diet, people pay more and more attention to the intake of various foods and put higher demands on the quality of the foods. As a big agricultural country, food resources are very rich in China and the annual output of food is huge. Most of the foods are still in life activities after primary processing, and if proper fresh-keeping measures are not taken in storage and transportation, the foods are rotten and deteriorated.

The LED light treatment is an effective fruit and vegetable post-harvest treatment technology, can effectively kill pathogenic microorganisms on the surfaces of fruits and vegetables, and reduces the risk of food-borne pathogenic bacteria; and other strains such as saprogenic bacteria can be killed. Meanwhile, the light with different colors has certain promotion effect on life activities of different picked fruits and vegetables.

Most of the current LED technical researches stay at the stage of an experimental laboratory, and how to put LED lamps with adjustable RGB color values into a retail terminal shelf, a refrigerator and a cold storage room, so that a simple and effective vegetable preservation mode is still to be solved.

Disclosure of Invention

An object of the utility model is to provide an utilize the adjustable technique of LED lamp RGB colour numerical value to show the fresh-keeping time of extension vegetables and promote cold environment and the operation method who stores the fruit vegetables quality.

In order to achieve the above object, one embodiment of the present invention provides an LED illumination fresh-keeping refrigerator, which includes a refrigerator body, a refrigeration system, a touch display screen and an LED lamp band; a touch display screen is arranged on the refrigerator body door; the upper part of the interlayer of the refrigerator body is provided with an LED lamp belt; the bottom of the refrigerator body is provided with an equipment room; a control center is arranged in the equipment room and connected with the touch display screen.

In one embodiment, the touch display screen is a 7-inch touch display screen special for a single chip microcomputer, the types of vegetables are selected through the touch display screen, and the selected information is fed back to the control center.

In one embodiment, the LED strip is a programmable WS2812b strip, the strip is connected to a single chip, and one strip is provided for each layer independently.

In one embodiment, the control center is a single chip microcomputer.

In one embodiment, the one-chip programming language is python. According to different vegetable types and requirements, the light-emitting color RGB numerical value and the light-emitting interval duration of the lamp strip are controlled by the single chip microcomputer.

The utility model provides an above-mentioned technical scheme can effectively prolong the fresh-keeping time of fruit vegetables food and promote the quality of storing fruit vegetables.

Drawings

Fig. 1 is the overall structure schematic diagram of the fresh-keeping refrigerator with LED illumination in one embodiment of the present invention. In the figure: 1-WS2812b lamp strip, 2-evaporator, 3-single chip microcomputer and 5-compressor.

Fig. 2 is a schematic cross-sectional structure view of the LED lighting preservation refrigerator in the embodiment shown in fig. 1. In the figure: 3-single chip microcomputer, 4-touch screen display and 5-compressor.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the accompanying drawings.

Fig. 1-2 show an embodiment of the LED illuminated fresh-keeping refrigerator of the present invention.

The refrigerator is improved on the basis of a common refrigeration and preservation refrigerator, and is provided with a WS2812b lamp strip 1, an evaporator 2, a singlechip 3, a touch screen display 4 and a compressor 5. The WS2812b lamp strip 1 can realize color change through programming, obtain the color of the specified wavelength which can be used for sterilization, realize that the RGB value can be selected at will from 0 to 255. The temperature change in the refrigerator body is sensed through the temperature sensor, and the single chip microcomputer control center 3 carries out data analysis and processing and realizes effective temperature control of safe operation of the refrigerator. All relevant program codes of the singlechip 3 are programmed by python language, and process real-time data from the temperature sensor and the touch screen display 4 and output a relay of a result value temperature control system and the WS2812b lamp strip 1. The touch screen display 4 can perform input and real-time display of relevant parameters.

The LED illumination fresh-keeping refrigerator comprises a refrigerator body, a refrigerating system, a touch display screen, a temperature control system and an LED illumination sterilization system. And an LED lamp strip is independently arranged on the upper part of each layer of partition plate in the refrigerator body. The type of the vegetables is selected by touching the display screen, and the selected information is fed back to the control center. According to different vegetable types and requirements, the light-emitting color RGB numerical value and the light-emitting interval duration of the lamp strip are controlled by the single chip microcomputer.

The use mode of the LED illumination fresh-keeping refrigerator provided by the utility model is introduced by taking the Chinese little greens as an example.

The mechanically harvested Chinese little greens are selected, and the Chinese little greens which are uniform in size, normal in color and luster (dark green), fresh, clean and free of obvious defects (including yellow leaves, mechanical injury, rotten mildew, freezing injury and plant diseases and insect pests) are selected. Rapidly carrying out staged pre-cooling treatment on the picked and finished Chinese little greens in constant-temperature water baths at 20 ℃, 10 ℃ and 4 ℃ respectively, wherein the temperature of the pre-cooled Chinese little greens is 4 ℃; the ratio of the mass of the pre-cooling water in the water bath tank to the mass of the Chinese little greens is 10: 1; and during precooling, recording the temperature of each part of the Chinese little greens by using a multi-point temperature collector. Putting the precooled Chinese little greens into hypochlorous acid water with the temperature of 4 ℃ and the concentration of 200 ppm for cleaning for 2 min; the mass ratio of the hypochlorous acid water to the Chinese little greens is 10: 1; and (3) airing the cleaned fresh-cut Chinese little greens for 30 min at the temperature of 10 +/-1 ℃ and the relative humidity of 45-55%, so that excessive water loss and wilting of leaves caused by the respiration and transpiration of the fresh-cut Chinese little greens due to overhigh temperature and overlong time are avoided.

And then putting the precooled Chinese little greens into transparent PET plastic boxes with the length of 20 cm and the width of 12.5 cm, wherein the mass of the Chinese little greens in each packaging box is 50 g, and wrapping the Chinese little greens with a sterile PE high-light-transmission antifogging film. The environmental conditions during packaging were 20 ℃ and 80% humidity. And then, flatly placing the packaged Chinese little greens in an environment at 4 ℃ and at a position which is 30 cm away from the LED lamp, and keeping the storage humidity at about 90% RH by using a saturated potassium chloride solution, and illuminating for 12 h every day. RGB of LED, etc. (255,0, 255).

Experiments show that the storage period of the Chinese little greens is more than 15 days, the quality and the nutrient content of the Chinese little greens are basically kept unchanged, the total number of bacterial colonies is kept below 2.00 log CFU/g, and the Chinese little greens has strong practicability and commercial value.

Through the foregoing, the utility model discloses embodiment's description can be seen, the utility model provides a fruit vegetables food fresh-keeping mode compares prior art and has apparent beneficial effect: the fresh-keeping time of the fruit and vegetable food is effectively prolonged, and the putrefaction of the fruit and vegetable food is reduced; the long-time fresh-keeping quality of the fruit and vegetable food is improved, and particularly compared with the traditional physical and chemical fresh-keeping technology, the illumination treatment has the advantages of wide sources, low cost, small volume, no need of participation of large-scale equipment and the like, and is more convenient and faster in daily operation.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

LED illumination refrigerator that keeps fresh, including refrigerator box, refrigerating system, touch display screen and LED lamp area, its characterized in that:

a touch display screen is arranged on the refrigerator body door;

the upper part of the interlayer of the refrigerator body is provided with an LED lamp belt;

the bottom of the refrigerator body is provided with an equipment room;

a control center is arranged in the equipment room and connected with the touch display screen.
2. The LED illuminated crisper according to claim 1, wherein:

the touch display screen is a 7-inch touch display screen special for the single chip microcomputer, the types of vegetables are selected through the touch display screen, and the selected information is fed back to the control center.
3. The LED illuminated crisper according to claim 1, wherein:

the LED lamp strip is a programmable WS2812b lamp strip, the lamp strip is connected with the single chip microcomputer, and each layer is independently provided with one lamp strip.
4. The LED illuminated crisper according to claim 1, wherein:

the control center is a singlechip.
5. The LED illuminated crisper according to claim 4, wherein:

according to different vegetable types and requirements, the light-emitting color RGB numerical value and the light-emitting interval duration of the lamp strip are controlled by the single chip microcomputer.