CN105627667A - Microwave sterilizing and drying refrigerator - Google Patents

Abstract

The invention discloses a microwave sterilizing and drying refrigerator, which comprises a box body, a microwave drawer located in the box body, an evaporator, and a drainage device located below the evaporator, the microwave drawer includes a metal cavity, and is accommodated in the metal A metal body in the cavity, a microwave generator located in the metal cavity, and an air inlet channel and an air outlet channel connected to the metal cavity, and the air inlet channel and the air outlet channel extend backward and toward the evaporator . Compared with the prior art, the present invention discharges the heat generated by the microwave generator to the evaporator through the air outlet channel, thereby heating and defrosting the evaporator, improving the humidity in the refrigerator, and reducing the impact of the microwave function on the evaporator. The adverse effects of the refrigerator, improve the stability and reliability of the refrigerator.

Description

Microwave Sterilization and Drying Refrigerator

technical field

The invention relates to the technical field of refrigerators, in particular to a microwave sterilizing and drying refrigerator combined with microwave technology.

Background technique

Conventional refrigerator sterilization methods mainly include ultraviolet sterilization, plasma sterilization, ozone sterilization, photocatalyst sterilization, metal ion sterilization, bioactive enzyme sterilization, etc., but no matter what kind of sterilization method can not simultaneously meet the requirements of good sterilization effect, timely control, and high sensitivity , The sterilization process will not release harmful substances, better retention of active substances, long-lasting sterilization and other advantages. At present, the industry has gradually introduced refrigerators that use microwaves to sterilize. The general principle is to use thermal effects. When microwaves act on food, the surface and interior of the food will absorb microwave energy at the same time, causing the temperature to rise, which in turn changes the protein structure of microorganisms and bacteria, resulting in It loses biological activity (such as killing fungi or interfering with their reproduction) to achieve the purpose of sterilization.

At present, the main sterilization method of refrigerators with microwave sterilization function is to use the built-in microwave oven to separately sterilize some specific food materials or clean the interior of the refrigerator, mainly to meet the needs of regular sterilization and deodorization of the interior of the refrigerator. The microwave function often cannot run at the same time as the basic function of the refrigerator. Most of them simply combine the microwave oven and the refrigerator mechanically, but there is no combination or mutual promotion part in function, and most microwave refrigerators do not use the microwave function. The problem that the microwave heat radiation affects the refrigeration of the refrigerator is not well solved.

In addition, when microwaves heat objects, microwaves have the characteristic of selective heating due to the different dielectric constants of various substances. Among them, water is the material that is heated preferentially in microwaves, which makes microwave technology applicable to food drying and preservation. However, in current refrigerators, dry food such as milk powder, tea, medicinal materials, and beef jerky needs to be additionally equipped with a dry-keeping device. Moreover, refrigerators with microwave sterilization cannot make good use of this characteristic of microwaves. Improve the shortcomings of the current refrigerators that are not convenient for storing the above ingredients.

Contents of the invention

The object of the present invention is to provide a microwave sterilizing and drying refrigerator, which can improve the cooperative relationship between microwave sterilizing and drying and refrigerator refrigeration.

In order to achieve one of the objectives of the above invention, an embodiment of the present invention provides a microwave sterilizing and drying refrigerator, which includes a box body, a microwave drawer and an evaporator located in the box, and a drainage device located below the evaporator. The microwave drawer It includes a metal cavity, a metal body accommodated in the metal cavity, a microwave generator located in the metal cavity, and an air inlet channel and an air outlet channel connected to the metal cavity, the air inlet channel and the air outlet channel A channel extends rearwardly and toward the evaporator.

As a further improvement of an embodiment of the present invention, a notch is provided on the metal body, and the microwave generator, the air inlet channel and the air outlet channel communicate with the inner side of the metal body through the notch, and the inner side of the metal body There is storage space for food.

As a further improvement of an embodiment of the present invention, the microwave drawer also includes a fan installed at the outermost end of the air inlet passage to guide the air at the evaporator into the air inlet passage; the inside of the air inlet passage and the air outlet passage All have metal walls for microwave shielding.

As a further improvement of an embodiment of the present invention, the metal cavity is provided with a cold storage plate located above the storage space, and the cold storage plate is a hollow structure with a cold storage agent inside.

As a further improvement of an embodiment of the present invention, the metal cavity is provided with a rear wall corresponding to the notch, and the air inlet channel, the microwave generator, and the air outlet channel are installed on the rear wall and arranged in a horizontal arrangement , the air inlet channel is higher than the air outlet channel.

As a further improvement of an embodiment of the present invention, the microwave generator is located between the air inlet channel and the air outlet channel, and is disposed toward the notch and the storage space of the metal body.

As a further improvement of an embodiment of the present invention, the drainage device includes a water collection tank located below the evaporator, a drain pipe connected to the water collection tank, and an evaporation pan located at the bottom end of the drain pipe.

As a further improvement in one embodiment of the present invention, the microwave sterilizing and drying refrigerator further includes a control device connected to the microwave drawer, the control device is connected to and controls the opening or closing of the microwave generator, the air inlet channel and the air outlet channel. closure.

Compared with the prior art, the beneficial effect of the present invention is that: by discharging the heat generated by the microwave generator to the evaporator through the air outlet channel, the evaporator can be heated and defrosted, and the humidity in the refrigerating room can be improved at the same time. The adverse effect of the microwave function on the refrigerator is reduced, and the stability and reliability of the refrigerator are improved.

Description of drawings

Fig. 1 is a schematic front view of a microwave sterilizing and drying refrigerator according to an embodiment of the present invention;

Fig. 2 is a schematic side view of a microwave sterilizing and drying refrigerator according to an embodiment of the present invention;

Fig. 3 is a perspective view of a microwave drawer of a microwave sterilizing and drying refrigerator according to an embodiment of the present invention;

Fig. 4 is a longitudinal sectional view of a microwave drawer of a microwave sterilizing and drying refrigerator according to an embodiment of the present invention;

Fig. 5 is a transverse sectional view of the microwave drawer of the microwave sterilizing and drying refrigerator according to one embodiment of the present invention.

detailed description

The present invention will be described in detail below in conjunction with specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

In each drawing of the present application, some dimensions of structures or parts are exaggerated relative to other structures or parts for convenience of illustration, and therefore, are only used to illustrate the basic structure of the subject matter of the present application.

In addition, terms used herein such as "upper", "above", "under", "below", etc. to express relative positions in space are for convenience of description to describe a unit or feature as shown in the drawings relative to A relationship to another cell or feature. The terms of spatial relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in Figures 1 and 2, the present invention provides a microwave sterilizing and drying refrigerator, which includes a box body 10, a microwave drawer 20 located in the box body 10, an evaporator 30 located at the rear side of the microwave drawer 20, and a The drainage device 40 below the evaporator 30 .

The box body 10 is provided with side panels 11 , a rear panel 12 connected to the side panels 11 , a refrigerator compartment 13 and a freezer compartment 14 distributed along the vertical direction, and a compressor compartment 15 at the bottom of the box body 10 . In a preferred embodiment of the present invention, the refrigerating chamber 13 is located above the freezing chamber 14, and the compressor chamber 15 is located below the freezing chamber 14 for accommodating a compressor; the evaporator 30 Located above the freezing chamber 14 and close to the inner side of the rear panel 12 of the box body 10 , the evaporator 30 is preferably a finned evaporator, which is located directly behind the microwave drawer 20 .

As shown in FIGS. 3 to 5 , the microwave drawer 20 includes a body 21 , a cavity 22 for accommodating the body 21 , a microwave generator 23 installed on the cavity 22 , and an inlet connected to the cavity 22 . The air passage 24 , the air outlet passage 25 , and the fan 26 installed on the air inlet passage 24 . The body 21 is provided with two side covers 210 arranged in parallel and a rear cover 211 and a front cover 212 connecting the two side covers 210, the side covers 210, the rear cover 211 and the front cover The boards 212 jointly form a storage space 213 for placing food, and the rear cover 211 is provided with a gap 214 passing through the storage space 213 . Described cavity 22 is quadrilateral, and it is provided with top wall 220, bottom wall 221 and the rear wall 222 that connects top wall 220 and bottom wall 221, and the inner side of described top wall 220, bottom wall 221 and rear wall 222 is formed with The housing chamber 223 for accommodating the main body 21, wherein the top wall 220 is provided with a cold storage plate 224 directly above the main body 21, and the cold storage plate 224 is a hollow structure with a void groove 225 and a cold storage plate inside. agent (such as 1,2-propanediol), which is mainly used to reduce or maintain the low temperature in the sealed cavity 22 . The rear wall 222 of the cavity 22 is arranged corresponding to the rear cover 211 of the body 21, the air inlet channel 24 and the air outlet channel 25 are respectively connected to the rear wall 222 of the cavity 22, and pass through the The gap 214 on the rear cover plate 211 of the body 21 communicates with the storage space 213 of the body 21 to realize air supply and exhaust in the storage space 213 of the body 21. The air inlet channel 24, the microwave generator 23, and the outlet The wind passages 25 are arranged horizontally, and the microwave generator 23 is fixed on the rear wall 222 of the cavity 22 and is set toward the notch 214 and the storage space 213 of the body 21. It is worth mentioning that the microwave generator The device 23 is located between the air inlet passage 24 and the air outlet passage 25, and the air inlet passage 24 is slightly higher than the air outlet passage 25, as shown in FIG. 5 . The fan 26 is fixed at the outermost end of the air inlet passage 24, and its main function is to introduce the low-temperature air at the evaporator 30 into the cavity 22, and enter the storage space 213 through the gap 214. The food in the storage space 213 is refrigerated.

In a preferred embodiment of the present invention, in order to prevent microwave leakage, the cavity 22 and the body 21 are both made of metal material, preferably the same metal material, and at the same time, the air inlet channel 24 and the air outlet channel The inboard of 25 is provided with metal wall surface, and its main function is to shield microwave when microwave generator 23 works, prevents microwave from leaking through air inlet channel 24 and air outlet channel 25. In addition, the outlet of the air outlet channel 25 is located at the lower side of the evaporator 30, and the hot and humid air discharged from the microwave drawer 20 is discharged to the evaporator 30 through the air outlet channel 25, which will have an effect on the frost on the surface of the evaporator 30. The effect of heating and defrosting can also increase the air humidity of the refrigerating chamber 13 , while excess non-volatile defrosting water is guided and discharged downward through the drainage device 40 .

2, the drainage device 40 includes a water collection tank 41 located below the evaporator 30, an evaporation pan 42 located in the compressor chamber 15, and a water collection tank 41 connected to the water Leads to drain 43 at evaporating dish 42 . The water collection tank 41 is funnel-shaped, and it is located directly below the evaporator 30 for collecting defrosting water. The drain pipe 43 extends from top to bottom, and its top end is connected to the water collection tank 41. The bottom end extends to the evaporating dish 42 for guiding the defrosting water into the evaporating dish 42 .

Of course, in order to improve the convenience and safety of use, the microwave sterilizing and drying refrigerator of the present invention also includes a control device (not shown) connected to the microwave drawer 20, through which the microwave generator 23, the air inlet Passage 24, air outlet passage 25, blower fan 26 carry out automatic control, control its opening or closing, for example, described microwave generator 23 will be closed automatically after microwave is used up, and described control device will close all automatically after 2 minutes. The air inlet channel 24, the air outlet channel 25 and the blower fan 26 make a sterile and relatively dry sealed space in the microwave drawer 20.

The use steps of the microwave sterilizing and drying refrigerator of the present invention in one embodiment are as follows:

(1) Close the body 21 , the air inlet channel 24 and the air outlet channel 25 of the microwave drawer 20 to form an airtight chamber (ie, the storage chamber 223 and the storage space 213 ) in the microwave drawer 20 ;

(2) Manually start the switch of the microwave drawer 20 (such as an induction switch), and after 20 seconds, the refrigerator will automatically turn on the microwave generator 23, and guide the generated microwaves into the sealed chamber;

(3) Microwaves vibrate violently in a closed chamber to quickly sterilize and dry food;

(4) The microwave generator 23 will be automatically turned off after 3 minutes, in order to prevent the user from forgetting to turn it off and causing waste of energy consumption and microwave radiation;

(5) Open the air inlet channel 24 and the air outlet channel 25 of the microwave drawer, start the fan 26 and run for 2 minutes, so that the air at the evaporator 30 with a lower temperature enters the cavity 22 through the air inlet channel 24, and replaces the The air with high temperature and humidity in the cavity 22 will be discharged to the bottom of the evaporator 30 through the air outlet channel 25, and the evaporator 30 will be heated and defrosted Since the space of the microwave drawer 20 is much smaller than that of the refrigerating room 13 (such as a 20L microwave drawer and a 200L refrigerating room), and the end of the air outlet channel 25 is an evaporator 30 with a lower temperature, the impact on the temperature fluctuation of the refrigerating Very small (less than 2°C).

(6) After 2 minutes, close the air inlet channel 24, the air outlet channel 25 and the fan 26. Since the microwave drawer 20 is in a sealed state, it cannot transfer heat through air convection, forming a sterile and relatively dry environment in the microwave drawer 20. The airtight chamber can be cooled or maintained at a constant temperature by means of the cold storage plate 224 through heat conduction;

(7) The user opens the microwave drawer 20 to store and take out food.

The microwave sterilizing and drying refrigerator of the present invention has the functions of microwave sterilizing and drying at the same time, all of which are realized by heating the inside of the food, which will preferentially heat water molecules, and its drying function is especially suitable for milk powder, tea, medicinal materials, and beef jerky Such as dry goods or rice and other ingredients, can be used to prevent the ingredients from absorbing moisture or directly dry dry goods and powder ingredients that have absorbed moisture. Compared with the prior art, the present invention has the advantages of good sterilizing effect, timely control, high sensitivity, no harmful substances released during the sterilizing process, long-lasting sterilizing, etc., and can better realize the function of dry storage, and also slow down the speed of the refrigerator. The problem of frosting and icing in the evaporator 30 increases the air humidity in the refrigerator compartment 13, and the microwaves generated cannot interfere with the outside world under the action of the metal body 21 and the metal cavity 22. The air outlet channel 25 takes away the heat in the cavity 22, reduces the adverse effect of the heat generated by the microwave oven on the refrigerator, and improves the stability and performance of the refrigerator.

It should be understood that although this description is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the description is only for clarity, and those skilled in the art should take the description as a whole, and each The technical solutions in the implementation manners can also be properly combined to form other implementation manners understandable by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions for feasible implementations of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent implementation or implementation that does not depart from the technical spirit of the present invention All changes should be included within the protection scope of the present invention.

Claims (8)

1. the dry refrigerator of microwave disinfection, the microwave drawer and the vaporizer that comprise casing, are positioned at casing and be positioned at the water-freeing arrangement below described vaporizer, it is characterized in that, described microwave drawer comprises metallic cavity, the metal body being contained in described metallic cavity, the microwave generator being positioned at metallic cavity and be connected to air intake passage and the air-out passage of described metallic cavity, described air intake passage and air-out passage extend backward and towards described vaporizer.

2. the dry refrigerator of microwave disinfection according to claim 1, it is characterized in that, described metal body is provided with breach, described microwave generator, air intake passage and air-out passage are connected with the inner side of described metal body by described breach, are provided with the parking space placing food inside described metal body.

3. the dry refrigerator of microwave disinfection according to claim 2, it is characterised in that, described microwave drawer also comprises the blower fan being installed on air intake passage outermost end, to import in air intake passage by the air at vaporizer place; The inner side of described air intake passage and air-out passage is equipped with the metallic walls face for shield microwaves.

4. the dry refrigerator of microwave disinfection according to claim 3, it is characterised in that, described metallic cavity is provided with the storage cold drawing being positioned at above described parking space, described storage cold drawing be hollow structure and in be provided with cold storage agent.

5. the dry refrigerator of microwave disinfection according to claim 4, it is characterized in that, described metallic cavity is provided with the rear wall corresponding with described breach, described air intake passage, microwave generator, air-out passage are installed on described rear wall and transversely arranged setting, and described air intake passage is higher than described air-out passage.

6. the dry refrigerator of microwave disinfection according to claim 5, it is characterised in that, described microwave generator is between described air intake passage and air-out passage, and arranges towards the parking space of described breach and metal body.

7. according to the dry refrigerator of microwave disinfection described in any one in claim 1 to 6, it is characterized in that, described water-freeing arrangement comprises the furnace pot being positioned at the water collecting groove below described vaporizer, the water shoot connecting described water collecting groove and being positioned at described water shoot bottom.

8. the dry refrigerator of microwave disinfection according to claim 7, it is characterized in that, the dry refrigerator of described microwave disinfection also comprises the control device connecting described microwave drawer, and described control device connects and controls unlatching or the cut out of described microwave generator, air intake passage and air-out passage.