JP2010243070A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem of a refrigerator for cooling inside a refrigerating chamber by a cold air curtain when a door is open that heat exchange between inside/outside of the refrigerating chamber becomes large near the opening door, after all, and a lot of thermal energy is lost. <P>SOLUTION: The heat-insulated/partitioned refrigerating chamber 104 is equipped with an electrostatic atomizer 131 for spraying mist. The electrostatic atomizer is provided on a storage chamber top surface side as well as on a rotary door opening part side, which can suppress inflow/outflow of cold air by the mist when the door is open, and can prevent temperature rise inside the chamber without reducing the cooling efficiency. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a refrigerator in which a mist is sprayed on the top side of the storage room and on the door opening part side, and a light source for irradiating the mist sprayed in the storage room is disposed.

  User concerns when opening and closing the refrigerator door include increased storage temperature due to the escape of cold air, increased electricity bills, and food contamination due to entry of airborne bacteria outside the refrigerator. Conventionally, as a solution to these concerns, there is a refrigerator equipped with a cold air curtain, which minimizes intrusion of outside air when the door is opened and leakage of cold air as much as possible, and eliminates or minimizes inconvenience due to bad smell in the storage room (For example, refer to Patent Document 1).

FIG. 5 shows a cross-sectional side view of a conventional refrigerator described in Patent Document 1. As shown in FIG.
As shown in FIG. 5, the opening of the refrigerator compartment 11 configured in the heat insulating box 6 is closed by a door 14 so that it can be opened and closed. After the door 14 is opened, the cold air in the refrigerator compartment 11 is deodorized. The air curtain is circulated to form a cold air curtain at the opening of the refrigerator compartment 11.
That is, a top panel 69 is attached to the top surface of the refrigerator compartment 11, and an air curtain top panel 71 is formed in the top panel 69 in the front-rear direction. The rear end of the air curtain top duct 71 communicates with the upper end of the air curtain rear duct 57, and the front end of the air curtain top duct 71 is located near the front opening of the refrigerator compartment 11. A plurality of outlets 72 are arranged side by side. In addition, an air curtain bottom duct 73 is formed in the upper partition wall 8, and a plurality of suction ports 74 are arranged side by side at the front end of the air curtain bottom duct 73 in the vicinity of the front opening of the refrigerator compartment 11. ing.

  The operation of the refrigerator configured as described above will be described below.

  When the door 14 is opened, the air curtain blower 68 is operated to suck the cold air from the axial direction and blow it out in the radial direction. Therefore, the cold air in the refrigerator compartment 11 is sucked from the suction port 74, and the air curtain It reaches the air curtain blower 68 through the bottom duct 73 and the connecting duct 76, and is also sucked from the suction port 75 through the gap G, enters the top curtain duct 71 for the air curtain, flows forward there, and blows. From the outlet 72, it blows off to the opening part of the refrigerator compartment 11 below. As a result, a cold air curtain is formed over the entire area of the opening of the refrigerating chamber 11, so that when the door 14 is opened, the outside air that tries to enter the refrigerating chamber 11 and the inside of the refrigerating chamber 11 will leak. It becomes possible to prevent the cold air as much as possible by the air curtain.

Furthermore, in order to deodorize the cold air, the deodorizing device 70 is disposed in the back duct 71 for the air curtain. Therefore, the deodorized cold air can be circulated in the refrigerating chamber 11, and the storage chamber The deodorization of can be done smoothly.
JP 2005-37125 A

  However, in the above conventional configuration, when the door is opened, the cold air outlet is formed in the upper part of the opening and the suction port is formed below the outlet, and the refrigerator is refrigerated via the duct for the air curtain that communicates with the outlet and the suction port. By cooling the inside of the chamber, the heat exchange between the inside of the refrigerator compartment and the outside of the refrigerator compartment is increased in the vicinity of the door, resulting in a large loss of heat energy and no energy saving effect.

  In addition, when the user opens the door, it is difficult to visually recognize the action of forming the air curtain, so that the product appeal effect is difficult to understand.

  Therefore, according to the present invention, by spraying mist on the top side of the storage room and on the door opening part side, it is possible to prevent the temperature inside the warehouse from rising without lowering the cooling efficiency when the door is opened.

  In order to solve the above-described conventional problems, the present invention is directed to a storage chamber partitioned by heat insulation, an application electrode that is electrically connected to a voltage application unit that generates a high voltage in the atomization unit, and an application electrode. An electrostatic mist that forms a counter electrode disposed at a position and a cooling means for making the applied electrode lower than the dew point temperature, and causes the applied electrode to condense moisture in the air and spray a mist to be sprayed as a mist in the storage chamber It is possible to prevent the temperature inside the storage chamber from rising without lowering the cooling efficiency when the door is opened.

  The refrigerator of the present invention includes a storage compartment partitioned by heat insulation, an application electrode that is electrically connected to a voltage application unit that generates a high voltage in the atomization unit, and a counter electrode that is disposed at a position facing the application electrode. An electrostatic atomizer that forms cooling means for lowering the applied electrode below the dew point temperature, and that condenses moisture in the air on the applied electrode and sprays the mist as a mist on the storage chamber. It is possible to prevent the temperature inside the cabinet from rising without lowering the cooling efficiency when the door is opened, and to irradiate the mist sprayed in the storage room. It is characterized by the fact that a light source is arranged, and the action of the mist sprayed when the door is opened is emphasized by light irradiation, and by visually appealing to the user, the added value of the function is increased and the appeal effect is given thing Possible it is.

  The invention according to claim 1 is a heat-insulated compartment storage room, an atomization part for spraying mist to the storage room, and a cooling means for supplying moisture in the air to the atomization part by condensation. And the atomizing part is provided in an electrostatic atomizing device having an application electrode and is provided on the top side of the storage room and on the door opening part side, so that when the door is opened, the mist is placed on the door side in the storage room. Positioning it becomes a resistance at the inflow and outflow of cold air, so it is possible to suppress the inflow and outflow of cold air, so it is possible to prevent the temperature rise in the warehouse without lowering the cooling efficiency, and more energy saving It is possible to realize a refrigerator.

  In addition, since it can be sprayed from the top of the storage room, it can be easily diffused throughout the storage room, and since the electrostatic atomizer is not easily touched by human hands, safety can be improved.

  Furthermore, the fine mist generated by the electrostatic atomizer includes ozone, OH radicals, etc., and these oxidizing powers can suppress the movement of germs contained in the cold air flowing into the storage room. It is possible to antibacterial and disinfect walls and shelves in storage rooms.

  The invention according to claim 2 is sprayed when the door is opened by providing a light source for irradiating mist sprayed from the atomizing section inside the storage room in addition to the refrigerator of the invention according to claim 1. It is possible to enhance the added value of the function and give the appeal effect by emphasizing the motion of the mist by light irradiation and visually appealing to the user.

In addition, a blue image gives a cold image, and a red color changes the refrigerator user's vision to give an image of abnormal temperature rise. It is possible to inform.

  In the invention according to claim 3, the light source for irradiating the mist sprayed from the atomizing section can irradiate the wavelength of 230 nm or more and 600 nm or less. It is possible to increase the added value of the function and give an appealing effect by highlighting the operation by light irradiation and visually appealing to the user, and at the same time, the wavelength is long and in a relatively safe range Light with a wavelength in the range of 380 nm to 400 nm in the ultraviolet B region and a wavelength in the visible region of 400 nm or more, particularly emitting blue with a peak wavelength near 400 nm to 500 nm and green with a wavelength of 500 nm to 600 nm It is possible to perform continuous irradiation or flashing irradiation. In addition, it prevents the deterioration of synthetic resins often used in refrigerators, and further suppresses quality deterioration such as lipid oxidation for foods stored for a long time, and also keeps the refrigerator clean by constantly suppressing the growth of bacteria and straw. Have

  However, for those with wavelengths in the deep ultraviolet region of 230 nm to 380 nm, two adjacent thymine molecules are destroyed by destroying the DNA (bacterial genome) necessary for life support and transmission of genetic information and inducing a thymine timer. It has a high relative bactericidal power that interferes with regeneration, stops and kills bacteria, etc., and kills very effectively, and at the same time causes skin cancer when irradiated to the human body. When it is installed in a refrigerator that is frequently used in daily life at home, care should be taken not to directly irradiate the user's body during use or to use it only on the top surface.

  In the invention according to claim 4, the light source for irradiating the mist sprayed from the atomizing section and the illumination light source for irradiating the interior of the storage room are concentrated and distributed in the same section. Therefore, in the storage space, the unevenness due to the members of the illumination part is gathered without being dispersed, thereby making the appearance clean. Moreover, since the unevenness | corrugation in the wall inside a storage space reduces, the operativity of the care in the case of wiping and cleaning can be improved. Furthermore, by reducing the area of the concavo-convex portion, it is possible to reduce dirt attached to the convex and concave portions and prevent clogging. In addition, when a light source for illumination and a light source for irradiating mist are used at the same time, and when the light source is a light emitting diode, a plurality of light emitting diodes for illumination and a light emitting diode for irradiating mist are mounted. By having a mounting board and providing the mounting board in the storage chamber, the light emitting diode for illumination and the light emitting diode for irradiating mist are mounted on one mounting board, and the installation space is minimized. Since the storage space in the storage room is not reduced, it is very convenient to use.

  The invention according to claim 5 is that the light source for irradiating the mist sprayed from the atomizing section is composed of a plurality of different wavelengths, for example, propagation of bacteria and spiders having individual wavelengths. Place in consideration of the safety of the user, such as placing a short wavelength at a position near the top side away from the user in the wavelength range of 230 nm to 380 nm, which has the effect of suppressing and keeping the refrigerator clean. Thus, it is possible to provide a more effective bacteriostatic action while taking safety into consideration.

  Further, by arranging different wavelengths in order from the longest wavelength and the shortest wavelength, it is conceivable that gradation by color shading is formed and the design becomes more beautiful.

In the invention according to claim 6, the light source for irradiating the mist sprayed from the atomizing part and the illumination light source for irradiating the inside of the storage room are arranged on the front side from the center in the front-rear direction of the side surface of the storage room. As a result, the visibility of the operation of the mist can be increased, and at the same time, the user's eyes and the vicinity of the hand can be illuminated brightly, so that the user can easily overlook the stored items such as food in the refrigerator. In addition, when the light source for irradiating the mist has a bacteriostatic action, it is placed in the front from the center, so it is placed near the refrigerator door. It is possible and effective to prevent invasion of germs such as bacteria and fungi.

  According to the seventh aspect of the present invention, the mist sprayed from the atomizing section is diffused into the storage chamber by being provided with a functional component. A functional ingredient is an herb that exerts an antibacterial effect while actively adding a scent, for example, and when it is a fragrance such as mint, it is more effectively bacteriostatic by a component such as AIT. It is possible to have an action, and it is also possible to alleviate the bad odor that has entered the interior of the storage chamber.

  In the invention according to claim 8, the storage chamber in which the electrostatic atomizer for spraying mist and the light source for irradiating the mist sprayed from the atomizing section are provided with a rotary door. When the user opens the rotary door, the electrostatic atomizer and the light source operate so that when the user opens the refrigerator door, the user can recognize the light and confirm the operation. Therefore, it is easy to have an image that the refrigerator is kept clean because it visually recognizes the effect of adding the function, and contributes to the appeal effect at the store.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same reference numerals are given to the same configurations as those of the conventional example or the embodiments described above, and detailed descriptions thereof will be omitted. The present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a front view of the refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of the refrigerator according to Embodiment 1 of the present invention. FIG. 3 is a detailed cross-sectional view of the vicinity of the electrostatic atomizer in Embodiment 1 of the present invention. FIG. 4 is a cross-sectional view of the vicinity of a light source for irradiating mist in Embodiment 1 of the present invention.

  In FIG. 1, the refrigerator 100 configured to be insulated from the surroundings with a heat insulating material forms a storage room divided into a plurality of compartments, and the uppermost storage room is located immediately below the refrigerator compartment 104 and the refrigerator compartment 104. The ice making chamber 106 and the switching chamber 105, which are insulated and partitioned by a partition wall, are arranged side by side. The lowermost storage room has a freezing room 108, and an ice making room 106, a switching room 105, and a freezing room 108 are arranged with a vegetable room 107. Moreover, the front opening part of these storage rooms is provided with the door, and the storage room is substantially sealed by closing the door.

  The refrigerator compartment 104 is provided with a refrigerator compartment rotary door 104a.

  In FIG. 2, a heat insulating box 101 of the refrigerator 100 is mainly composed of an outer box 102 using a steel plate and an inner box 103 molded of a resin such as ABS, and inside thereof is a foam heat insulating material such as hard urethane foam. Is filled, insulated from the surroundings, and divided into a plurality of storage rooms. A refrigeration chamber 104 as a first storage chamber is provided at the top, and a switching chamber 105 as a fourth storage chamber and an ice making chamber 106 as a fifth storage chamber are provided side by side below the refrigeration chamber 104. A vegetable room 107 as a second storage room is arranged below the chamber 105 and the ice making room 106, and a freezing room 108 as a third storage room is arranged at the bottom.

The refrigerated room 104 is normally set to 1 ° C. to 5 ° C. at the lower limit of the temperature at which it does not freeze for refrigerated storage, and the vegetable room 107 is set to 2 ° C. to 7 ° C., which is set at a temperature that is the same as or slightly higher than that of the refrigerated room 104. The freezer compartment 108 is set in a freezing temperature zone, and is usually set at −22 ° C. to −15 ° C. for frozen storage, but for example, −30 ° C. or −25 ° C. to improve the frozen storage state. It may be set at a low temperature. The switching chamber 105 is not only refrigerated set at 1 ° C to 5 ° C, vegetable set at 2 ° C to 7 ° C, and frozen temperature range normally set at -22 ° C to -15 ° C. It is possible to switch to a preset temperature range between the freezing temperature ranges. The switching chamber 105 is a storage chamber having an independent door arranged in parallel with the ice making chamber 106, and often has a drawer-type door. In this embodiment, the switching chamber 105 is a storage room including the refrigeration and freezing temperature zones, but the refrigeration is performed in the refrigeration room 104, the vegetable room 107, and the freezing is performed in the freezing room 108. A storage room specialized for switching only the intermediate temperature range may be used. A storage room fixed at a specific temperature range may also be used. The ice making chamber 106 makes ice with an automatic ice maker (not shown) provided in the upper part of the room with water sent from a water storage tank (not shown) in the refrigeration room 104, and an ice storage container ( (Not shown).

  The top surface portion of the heat insulating box 101 has a stepped recess shape toward the back side of the refrigerator. The compressor chamber 109 and a dryer for removing moisture are formed by forming a machine chamber 101b in the stepped recess. High-pressure side components of the refrigeration cycle such as not shown) are accommodated. That is, the machine room in which the compressor 109 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 104. By providing a machine room in the rear region of the uppermost storage room of the heat insulation box 101 that is difficult to reach and is a dead space, the compressor 109 is arranged, so that a heat insulation box that is easy for the user to use in a conventional refrigerator The space in the machine room at the bottom of 101 can be effectively converted as the storage room capacity, and the storage performance and usability can be greatly improved. In the present embodiment, the matter relating to the main part of the invention described below is a type in which a compressor room is provided by providing a machine room in the rear region of the lowermost storage room of the heat insulating box 101, which has been generally used conventionally. It may be applied to other refrigerators.

  Here, a recess is provided in a part of the wall surface of the refrigerator compartment 104 on the storage room side so as to be cooler than other parts, and the electrostatic atomizer 131 is installed at that part. Further, the electrostatic atomizer 131 is installed on the top side of the storage room and on the side of the refrigerating room rotary door 104a, that is, on the open side of the storage room.

  The electrostatic atomizer 131 mainly includes an atomizing unit 139, a voltage applying unit 133, and an outer case 137, and a spray port 132 and a humidity supply port 138 are configured in part of the outer case 137. The atomizing unit 139 is provided with an application electrode 135 that is an atomization electrode, and the application electrode 135 is fixed to a cooling pin 134 that is a good heat conducting member such as aluminum or stainless steel.

  The cooling pin 134 is fixed to the outer case 137, and the cooling pin 134 itself is configured to protrude from the outer case. In addition, a donut disk-shaped counter electrode 136 is attached to the storage chamber side at a position facing the application electrode 135 so as to maintain a constant distance from the tip of the application electrode 135, and a spray port 132 is formed on the extension. ing.

  Further, a voltage application unit 133 is configured in the vicinity of the atomization unit 139, and the negative potential side of the voltage application unit 39 that generates a high voltage is electrically connected to the application electrode 135 and the positive potential side is electrically connected to the counter electrode 136. .

  The voltage application unit 133 communicates with and is controlled by the control means 146 of the refrigerator main body, and performs high voltage ON / OFF by an input signal from the refrigerator 100 or the electrostatic atomizer 131.

  4 is a cross-sectional view of the vicinity of the mist light source in FIG. In the refrigerator compartment 6, the illumination light source 1 is provided in front of the center in the front-rear direction of the refrigerator and in front of the storage shelf 12. Further, in addition to the illumination light source 141, a mist light source 142 is arranged, and the illumination light source 141 and the mist light source 142 are concentrated and arranged in the same section without being dispersed.

The illumination light source 141 and the mist light source 142 are arranged vertically on the wall inside the storage space. This is because the mist light source 142 is provided so as to irradiate the cold main air passage 150 which is the most mainstream of the refrigerator compartment 104, and the mist tends to flow along the cold air main air passage 150. , To make consumers perceive the image of more sprayed mist spreading.

  In the refrigerator compartment 104, a plurality of shelves 126 for arranging and storing stored items without overlapping are provided, and a part thereof is configured to be movable up and down. A specific low temperature chamber 127 having a dedicated door on the front is provided at the bottom, and mainly preserves selected preserved products such as selected fresh foods such as meat and fish and processed products such as ham and chikuwa at the optimum temperature. .

  Further, an ice making water supply tank 14 made of a light transmissive material for supplying ice making water to the ice making device is installed on the side of the opposite wall of the specific low temperature chamber 13. An egg case (not shown) is installed between the specific low temperature chamber 127 and a water supply tank for ice making (not shown). In the refrigerator compartment 104, there are seasonings and dressings in bottles and plastic bottles, foods such as butter, cheese and jam that are always stored for a certain period, and drinks such as milk and juice. A wide variety of foods and medicines such as meats, vegetables, salads, side dishes, etc. that have a long shelf life of less than one week, such as relatively frequently used foods, are stored on a plurality of storage shelves 126. And a storage case (not shown) on the door side, a specific low temperature chamber 13 having a dedicated door on the front surface installed at the bottom, and the like.

  Unlike the vegetable compartment 107 and the like, the refrigerator compartment 104 is a space where there is a high possibility that stored items other than food such as various foods and medicines are also present. It can also be assumed that liquid items such as milk in paper milk cartons or leftovers in unstable dishes are stored, and some of those foods are stored when the refrigerator compartment 104 door is opened and closed. It is conceivable that the dust is scattered, and the wall surface in the refrigerator compartment 104 and the storage shelf 126 are places where dirt is most likely to adhere.

  In addition, since there are many foods that are always available for a long time, it is also a place where it is difficult for the user to frequently remove the dirt on the shelves and walls. On the other hand, however, users tend to be very concerned about the dirt in the refrigerator compartment 6, and there is a high need for removing bacteria and molds and keeping them as clean as possible. In addition, since the refrigerator is required to have an additional function that makes it as difficult as possible to remove dirt and automatically removes dirt continuously and provides a safe and clean storage space. 131 is installed, it is possible to prevent a rise in temperature in the cabinet without lowering the cooling efficiency when the refrigerating room rotary door 104a is opened, and a mist light source 142 to be sprayed in the storage room is arranged. By doing so, the operation of the mist sprayed when the refrigerating room rotary door 104a is opened is emphasized by light irradiation, and it is possible to increase the added value of the function and give the appeal effect by visually appealing to the user It is.

  The mist light sources 142 for spraying the mist are not particularly limited even if they all have the same wavelength or have different wavelengths. In the case of having different wavelengths individually, irradiation may be performed along the spraying state of the mist to be sprayed, and it is preferable that the irradiation method is more visually appealing to the user.

  Here, the light source 141 for illumination is a color that makes it easy for the refrigerator user to see the food in the storage space, such as a white light source. In the first embodiment, a light emitting diode is used as the light source, but the type of the light source is not limited. That is, the mounting substrate 143 is embedded in the indoor side wall of the refrigerating chamber 6 on the left and right as viewed from the open front of the refrigerating chamber rotating door 104a, and the upper surface of the mounting substrate 143 is covered with the lamp cover.

A plurality of mist light sources 142 are arranged at arbitrary positions between the illumination light sources 141 and mounted on the mounting substrate 143. The mounting substrate 143 is held by a spacer in the interior recess of the side wall of the refrigerator compartment, and the lamp cover covers the entire light emitting portion of each light source at a certain distance from the light emitting portions of the illumination light source 141 and the mist light source 142. In this way, it is mounted in a concave portion on the indoor side of the side wall of the refrigerator compartment.

  As a material of the lamp cover, a transparent material such as epoxy, acrylic, polycarbonate, polyethylene, polystyrene, polypropylene, etc., which is formed using one material or a composite material as a base material, is preferably diffusible.

  In the first embodiment, such a lighting device is embedded in the side wall of the refrigerator compartment. However, if a stored item such as food or a mist to be sprayed can be irradiated through the lamp cover, the indoor wall such as the top wall or the storage shelf 126 can be irradiated. It may be embedded at any location. Furthermore, the light irradiation intensity is not limited, and in order to improve the functional effect, if a high irradiation intensity is required, for example, increase the number of light emitting diodes or select one with high luminance. May be. Further, the irradiation intensity is not constant, and the visibility may be increased by gradually increasing or decreasing the intensity or blinking, and there is no particular limitation.

  In the first embodiment, the light emitting diode as the light source has a small calorific value, can prevent a temperature rise in the storage space, can stabilize the preservability of food, and has a low running cost. In addition, since it has excellent durability and a compact design is possible, it is highly versatile and desirable as a refrigerator specification.

  A cooling chamber 110 for generating cold air is provided on the back of the vegetable chamber 107 and the freezing chamber 108, and a cooling air conveyance path to each chamber having heat insulation is provided between the vegetable chamber 107 and the freezing chamber 108, and the chamber is configured to be insulated from each chamber. The rear partition wall 111 is configured. In the cooling chamber 110, a cooler 112 is disposed, and in the upper space of the cooler 112, the cold air cooled by the cooler 112 by a forced convection method is stored in the refrigerating chamber 104, the switching chamber 105, the ice making chamber 106, and vegetables. A cooling fan 113 for blowing air to the chamber 107 and the freezing chamber 108 is disposed, and a radiant heater made of glass tube for defrosting the frost and ice adhering to the cooler 112 and its surroundings at the time of cooling in the lower space of the cooler 112 114, and a drain pan 115 for receiving defrost water generated at the time of defrosting, and a drain tube 116 penetrating from the deepest part to the outside of the chamber are configured at the lower portion thereof, and the evaporating dish 117 is disposed outside the downstream side of the chamber. Is configured.

  In the vegetable compartment 107, a lower storage container 119 placed on a frame attached to the drawer door 118 of the vegetable compartment 107 and an upper storage container 120 placed on the lower storage container 119 are arranged.

  A lid 122 for mainly sealing the upper storage container 120 in a state where the drawer door 118 is closed is held by the first partition wall 123 and the inner box 103 at the top of the vegetable compartment. With the drawer door 118 closed, the left and right sides and the back side of the top surface of the lid body 122 and the upper storage container 120 are in close contact with each other, and the front side of the top surface is in close contact. Furthermore, the left and right lower sides of the back surface of the upper storage container 120 and the boundary between the lower storage container 119 are provided with a gap so that moisture in the food storage section does not escape within a range where the upper storage container 120 is not in contact with the upper storage container 120 in operation.

  Between the lid body 122 and the first partition wall 123, there is provided an air passage for the cold air discharged from the vegetable room discharge port 124 formed in the rear partition wall 111. Further, a space is also provided between the lower storage container 119 and the second partition wall 125 to constitute a cold air passage. In the lower part of the rear partition wall 111 on the back of the vegetable compartment 107, there is provided a vegetable compartment suction port for cooling the inside of the vegetable compartment 107 and returning heat exchanged to the cooler 112.

  It should be noted that the matters relating to the main part of the invention described below in the present embodiment may be applied to a refrigerator that is opened and closed by a frame attached to a door and a rail provided in an inner box, which has been conventionally common. I do not care.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the operation of the refrigeration cycle will be described. The refrigeration cycle is operated by a signal from a control board (not shown) according to the set temperature in the cabinet, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 109 is condensed to some extent by a condenser (not shown), and further, refrigerant piping ( (Not shown) and the like, while condensing and liquefying while preventing condensation on the refrigerator main body, it reaches a capillary tube (not shown). After that, the capillary tube is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 109 to become a low-temperature and low-pressure liquid refrigerant and reaches the cooler 112. Here, the low-temperature and low-pressure liquid refrigerant is heat-exchanged with air in each storage chamber such as the freezer discharge air passage 1141 conveyed by the operation of the cooling fan 113, and the refrigerant in the cooler 112 evaporates. At this time, cool air for cooling each storage chamber is generated in the cooling chamber. The low-temperature cold air is diverted from the cooling fan 113 to the refrigerating room 104, the switching room 105, the ice making room 106, the vegetable room 107, and the freezing room 108 using an air passage or a damper, and cooled to the respective target temperature zones.

  A concave portion is formed on the top wall of the refrigerator compartment 104, and an electrostatic atomizer 131 is attached to this portion.

  A high voltage (for example, 4 to 10 kV) is applied between these electrodes by the voltage application unit 133 with a negative voltage applied to the application electrode 135 to which water droplets have adhered and the counter electrode 136 as a positive voltage side. At this time, corona discharge occurs between the electrodes, the water droplets at the tip of the application electrode 135 are refined by electrostatic energy, and the droplets are charged. A level of fine mist and accompanying ozone and OH radicals are generated. The voltage applied between the electrodes is a very high voltage of 4 to 10 kV, but the discharge current value at that time is a few μA level, and the input is a very low input of 0.5 to 1.5 W. .

  The generated fine mist is sprayed into the refrigerating chamber 104, but is very diffusible due to very small particles, and the fine mist reaches the entire refrigerating chamber 104. Since the fine mist to be sprayed is generated by high-pressure discharge, it has a negative charge. The refrigerator compartment 104 stores many kinds of ingredients such as meat, fish, dairy products, cooked side dishes in pans and dishes, and processed products, especially the rear side of the refrigerator compartment rotating door 104a. Mist is easily sprayed by milk cartons stored in containers. In addition, the vicinity of the door of the refrigerator compartment 104 is the most easily contaminated part due to splashing of soup when the door is opened and closed, or invasion of floating bacteria from the outside, and the atomized mist is deposited on the surface of these dirt. It is easy to gather, and the effects of deodorization, removal of harmful substances on the food surface, and antifouling can be enhanced by ozone and OH radicals generated simultaneously with the occurrence of mist, so that the freshness is improved. In addition, nano-level fine mist adhering to the surface of dirt and bacteria contains OH radicals and a small amount of ozone but is effective for sterilization, antibacterial action, and sterilization.

  Furthermore, by adding a cassette containing volatile components of natural wood and plants, such as mint components and cedar and cypress, which are a kind of herbs (not shown) near the electrostatic atomizer, the mist containing them is stored in the refrigerator compartment 104. It is possible to remove bad odors by neutralizing the adhering odor on the wall surface in the refrigerator compartment 104 and the odor in the cabinet.

  Thus, the functional component in the present invention is, for example, a component having a fragrance including a volatile component of natural wood / plant that exhibits an antibacterial effect while actively adding a scent.

  As described above, in the first embodiment, the storage chamber partitioned by heat insulation, the application electrode that is electrically connected to the voltage application unit that generates a high voltage in the atomization unit, and the position facing the application electrode Electrostatic atomization in which the counter electrode arranged in the slab and the cooling means for making the applied electrode below the dew point temperature are condensed, and moisture in the air is condensed on the applied electrode and sprayed as mist in the storage chamber The device is provided on the top side of the storage room and on the door opening part side, and when the door is open, it is possible to prevent the temperature inside the storage chamber from rising without lowering the cooling efficiency. By adding a light source that irradiates the mist that is emitted, the operation of the mist sprayed when the door is opened is emphasized by light irradiation, and the added value of the function is enhanced by visually appealing to the user , Appeal It is possible to provide the results.

  Moreover, in this Embodiment, the partition wall to which the electrostatic atomizer is attached has a recessed part in the refrigerator compartment 104 side, and the metal piece which is a cooling means of an electrostatic atomizer is inserted there This will not affect the storage capacity for storing food, etc., and the metal pieces will be cooled down reliably, and the wall thickness that can ensure heat insulation will be secured for the other parts. The dew condensation can be prevented and the reliability can be improved.

  Ozone is also generated when fine mist is generated. The ozone concentration in the storage chamber can be adjusted by ON / OFF operation of the electrostatic atomizer. By adjusting the ozone concentration appropriately, deterioration such as yellowing of vegetables due to excessive ozone can be prevented, and the sterilization and antibacterial action of the vegetable surface can be enhanced.

  In the present embodiment, the water retention material is not provided around the application electrode of the electrostatic atomizer, but a water retention material may be provided. Thereby, the dew condensation water produced | generated in the vicinity of an application electrode can be hold | maintained around an application electrode, Therefore It can supply to an application electrode timely.

  In the present embodiment, the refrigerator storage room is a refrigerated room, but a storage room in another temperature range may be used, and in this case, it can be used for various purposes.

  In this embodiment, it is possible to actively remove floating bacteria and viruses near the door by mist from the electrostatic atomizer without losing the cooling capacity even when the refrigerator door is opened, It is possible to prevent intrusions from.

  As described above, the refrigerator according to the present invention can be applied not only to household or commercial refrigerators but also to uses such as low-temperature food distribution and low-temperature warehouses.

Front view of the refrigerator in Embodiment 1 of the present invention Cross-sectional view of the refrigerator in the first embodiment of the present invention Detailed sectional view of the vicinity of the electrostatic atomizer in Embodiment 1 of the present invention Detailed sectional view of the vicinity of the refrigerator compartment illumination in the first embodiment of the present invention Vertical section of a conventional refrigerator

DESCRIPTION OF SYMBOLS 100 Refrigerator 101 Heat insulation box 102 Outer box 103 Inner box 104 Refrigeration room 104a Refrigeration room rotating door 105 Switching room 106 Ice making room 107 Vegetable room 108 Freezing room 109 Compressor 110 Cooling room 111 Back surface partition wall 112 Cooler 113 Cooling fan 114 Radiant heater 115 Drain pan 116 Drain tube 117 Evaporating dish 118 Door 119 Lower storage container 120 Upper storage container 122 Lid 123 First partition wall 124 Vegetable compartment outlet 125 Second partition wall 126 Shelf 127 Specific low temperature chamber 131 Electrostatic Atomizer 132 Spray port 133 Voltage application unit 134 Cooling pin 135 Application electrode 136 Counter electrode 137 Outer case 138 Humidity supply port 139 Atomization unit 141 Illumination light source 142 Mist light source 146 Control means 150 Cold air main air path

Claims (8)

A storage compartment partitioned by heat insulation, an atomization section for spraying mist on the storage compartment, and a cooling means for supplying moisture in the air to the atomization section by dew condensation. A refrigerator provided in an electrostatic atomizer provided with an application electrode and provided on the top side of the storage room and on the door opening side. The refrigerator of Claim 1 provided with the light source for irradiating the inside of a store room with the mist sprayed from an atomization part. The refrigerator according to claim 1 or 2, wherein the light source for irradiating the mist sprayed from the atomizing section can irradiate a wavelength of 230 nm or more and 600 nm or less. The light source for irradiating the mist sprayed from the atomizing section and the illumination light source for irradiating the inside of the storage room are concentrated and arranged in the same section without being dispersed. The refrigerator according to one item. The refrigerator according to any one of claims 1 to 4, wherein the light source for irradiating the mist sprayed from the atomizing section is composed of a plurality of different wavelengths. The light source for irradiating the mist sprayed from the atomization part and the illumination light source for irradiating the inside of the storage chamber are arranged on the front side from the center in the front-rear direction of the side surface of the storage chamber. The refrigerator as described in any one. The refrigerator according to any one of claims 1 to 6, wherein the mist sprayed from the atomizing section is provided with a functional component. The storage chamber in which the electrostatic atomizer for spraying mist and the light source for irradiating the mist sprayed from the atomizing section are provided with a rotary door, and the user can The refrigerator according to any one of claims 1 to 7, wherein when the door is opened, the electrostatic atomizer and the light source operate.