JP2009162470A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator allowing an user to easily demount and mount a return duct by hands, and to clean and wash the inside of the duct to satisfy user needs for maintaining hygiene. <P>SOLUTION: This refrigerator is composed of a heat insulating housing 101 provided with a plurality of storage compartments, a refrigerating compartment 106 is disposed in an upper portion, a freezing compartment 105 is disposed in a lower part of the refrigerating compartment 106, the return duct 113 from the refrigerating compartment 106 to a cooler 103 is disposed in a cooling compartment 104, and the return duct 113 can be mounted and demounted only by a mounting/demounting means 117 without using a tool. Thus the user can demount and mount the return duct 113 to clean or wash the inside of the return duct 113 to eliminate dirt such as food juice and foreign matters which may be mixed inside, and to prevent propagation and diffusion of bacteria and the like so that the refrigerator is hygienically kept. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an air channel configuration of a refrigerator of a cold cooling system in which cold air is circulated by a blower to cool the inside of the refrigerator, and the hygiene maintenance thereof.

  In recent years, household appliances have been provided with various functions due to an increase in health and hygiene in life. Refrigerators have conventionally been provided with deodorizing, antibacterial, sterilizing and sanitary ice making functions as clean functions.

  This type of refrigerator improves hygiene by suppressing the growth of bacteria using a resin kneaded with antibacterial agents on shelves where food is directly placed and external handle parts that are often touched by users. Have been trying. In addition, many of the internal parts are configured so that the user can easily remove them without using a tool, and is easy to wash.

  By the way, conventionally, an air duct that communicates between the interior of the refrigerator and the cooling chamber is disposed in a refrigerator of the intercooling system that cools the interior by circulating air with a fan. In many cases, the air duct is usually provided in a thermally insulated section on the back surface of the refrigerator, and the air duct is cooled by circulating air in each chamber through the cooling chamber (see, for example, Patent Document 1).

  FIG. 19 shows a configuration of a conventional refrigerator described in Patent Document 1.

  As shown in FIG. 19, the heat insulation box 1 is comprised from the top in the refrigerator compartment 2, the freezer compartment 3, and the vegetable compartment 4. As shown in FIG. On the back surface of the freezer compartment 3, a cooler 5 and a fan 6 are arranged separated from the interior by a partition member (not shown). On the back of the refrigerator compartment 2, a damper device (not shown) for adjusting the temperature of the refrigerator compartment 2, a damper case 7 having a refrigerator outlet air passage, and cold air passing through the damper device are stored in the refrigerator compartment 2 The refrigerator compartment discharge opening 8 is blown out.

  In addition, a lower part of the damper case 7 is provided with a refrigerator compartment return opening 10 connected to a communication duct 9 with the vegetable compartment 4. Further, the communication duct 9 is provided with a heat insulating compartment on the back surface of the freezer compartment 3 and is arranged vertically, and communicates with the vegetable compartment discharge opening 11 connected to the vegetable compartment 4.

  With the above configuration, the cold air cooled by the cooler 5 is sent to the freezer compartment 3 and the refrigerator compartment 2 through the discharge air passage (not shown) by the operation of the fan 6. The cold air that has cooled the refrigerator compartment 2 is sent to the vegetable compartment 4 through the communication duct 9, and then returns to the cooler 5 through a return duct (not shown) to circulate the cold air to cool the interior. It is.

  Also in such air ducts, for example, by circulating the floating bacteria that circulate with the air, for example, ozone generated by corona discharge in the warehouse or in the air passage, the growth of bacteria can be suppressed, or deodorization can be prevented. The method of doing is taken (for example, refer patent document 2).

  FIG. 20 shows a configuration of a conventional refrigerator described in Patent Document 2. As shown in FIG.

  As shown in FIG. 20, the heat insulating box 21 is composed of a refrigerator compartment 22, a vegetable compartment 23, an upper freezer compartment 24, and a lower freezer compartment 25 in order from the top. A refrigeration room cooler 26 and a refrigeration room fan 27 are arranged on the back surface of the vegetable room 23, and are separated from the interior by a partition member 28. A refrigerating room discharge duct 29 is provided on the back of the refrigerating room 22, and the cold air cooled by the refrigerating room cooler 26 circulates from the refrigerating room discharge duct 29 to the refrigerating room 22 and the vegetable room 23, and the vegetable room return duct. It is configured to return via 30.

  The vegetable room return duct 30 is partitioned from the interior by a partition member 31, and an ozone generator 32 is provided inside. The ozone generator 32 generates ozone and performs antibacterial with each duct and the internal space as an ozone atmosphere.

  In addition, there is a configuration in which this air duct is integrated with a partition member provided on the back of the freezer compartment, and the air duct can be removed at the same time by removing the partition member (see Patent Document 3).

  FIG. 21 shows a configuration of a conventional refrigerator described in Patent Document 3. As shown in FIG.

As shown in FIG. 21, a cooler 42, a fan 43, and a damper device 46 are arranged on the back surface of the freezer compartment 41 so as to be separated from the interior by a partition member 44, and the partition member 44 includes the fan 43 and the damper device 46. And the air duct 45 are integrally formed, and the fan 43, the damper device 46, and the air duct 45 can be removed simultaneously by removing the partition member 44. Thus, the fan 43 and the damper device 46, which are electrical components, are also removed together when the air duct 45 is removed.
JP-A-8-233430 Japanese Patent No. 3824819 JP 2007-71483 A

  However, in conventional refrigerators, even if antibacterial treatment is performed on parts, if the stored foodstuffs are spilled or if the contamination of the internal parts caused by dirt on the storage container or dish proceeds, There is a problem that the effect does not spread to the surface of the part, and the propagation of bacteria begins.

  In particular, in the case of the kneading method, with the long-term use of the antibacterial component, there is also a problem that the antibacterial material does not easily ooze from the inside of the component to the surface, and the antibacterial effect decreases with time.

  Furthermore, it is difficult to disassemble the stains in the internal parts even by antibacterial means such as ozone, and the antibacterial effect is not sufficient for the contaminants such as septic foods attached to the internal parts. .

  Furthermore, as a user's need, as a sense of security in terms of hygiene, it is desired that the user can wash himself cleanly. For example, even though automatic ice making equipment has an automatic washing function as equipment, products that can be washed by removing ice trays and products that can be washed by removing the water supply path are provided. Therefore, it is possible to ask and know such psychological user needs.

  Based on the above, it is easy to remove the internal parts that store food directly stored, such as refrigerator shelves and storage cases, so that the user can remove and clean them. There are many.

  On the other hand, with respect to the air passage in the warehouse, in Patent Document 1, since the communication duct 9 is a structural part related to the basic cooling performance, the user himself / herself cannot directly touch the communication duct 9. In addition, the user himself / herself cannot clean the inside of the communication duct, and has a problem that the cleanability inside the duct is poor.

  In Patent Document 2, by sending ozone into the cooling air passage, it is possible to hygienically suppress deodorization and bacterial growth inside the duct that cannot be directly touched by users like Patent Document 1. The problem as in Patent Document 1 has been solved. However, in the air passage portion through which the air in the refrigeration room first passes (here, collectively referred to as the refrigeration room return duct, which corresponds to the communication duct 9 in Patent Document 1), the bacteria propagate compared to other duct parts. In addition, the position of the opening in the refrigerator compartment return duct is often provided in the lower part of the refrigerator compartment, and the duct is arranged to be directed downward in the direction of gravity. For this reason, foreign substances such as food juice and dirt are likely to flow down into the duct from the opening in the cabinet, and when liquid or foreign substances are mixed in the duct or foreign substances or dirt adhere to the duct, the configuration is as in Patent Document 2. There was a problem that ozone and other means could not be adequately decomposed, and a problem that users could not satisfy the need to satisfy the sense of security by washing the duct itself.

  In patent document 3, the partition member 44 provided in the back surface of the freezer compartment is removed, and the refrigerator compartment return duct (not shown), the fan 43, and the damper apparatus 46 are removed simultaneously. However, in the configuration of Patent Document 3, even if cooling failure or the like occurs, the service person aims to easily repair and replace parts such as the fan 43, the damper device 46, and the duct. In order to ensure safety so that the user does not directly touch the electric parts such as the fan 43 and the damper device 46 and the cooling parts such as the cooler 5, and in order to ensure the built-in reliability of these parts, in principle, Since the user himself / herself cannot be easily detached without using a tool, the user cannot remove the refrigerator return duct as a result. There was a problem that the need to satisfy the feeling could not be satisfied.

  This invention solves the said conventional subject, and it aims at providing the refrigerator which aims at the improvement of the cleanability inside a refrigerator compartment return duct or a communicating duct.

  In order to solve the above-described conventional problems, the refrigerator of the present invention includes a plurality of storage rooms including a freezing room formed by a heat insulating box in the refrigerator body, and a cooling room partitioned by a partition member on the back surface of the freezing room. A cooler for cooling the storage chamber housed in the cooling chamber, and a return duct for returning cool air to the cooler from a storage chamber other than the freezer chamber provided with a cooling chamber on the back of the chamber The return duct is arranged in the cooling chamber and includes an attachment / detachment means for making the return duct attachable / detachable, and the return duct can be attached / detached to / from the refrigerator main body without using a tool only by the attachment / detachment means.

  As a result, even if liquid or foreign matter enters the return duct or foreign matter or dirt adheres to the return duct, a user who is not a service person can remove and attach the return duct using only the attachment / detachment means. It is easy to use without using it, and it is possible to clean and wash dirt and mixed foreign substances that cause germs propagation inside the return duct, thereby meeting the needs of users who want to keep the refrigerator more hygienic. As a result, it is possible to prevent diffusion of germs that affect food preservation into the cabinet and keep it in a hygienic refrigerator.

  In the refrigerator of the present invention, the user himself / herself easily removes and attaches the return duct by hand only using the attaching / detaching means without using a tool, and cleans and cleans dirt and foreign substances that cause germs breeding inside the return duct. It is possible to meet the needs of users who want to keep the refrigerator more hygienic and satisfy the sense of security. As a result, it is possible to prevent diffusion of germs that affect food preservation into the cabinet and keep it in a hygienic refrigerator.

  The invention according to claim 1 has a plurality of storage chambers including a freezing chamber formed by a heat insulating box in a refrigerator main body, and a cooling chamber partitioned by a partition member on a back surface of the freezing chamber, and the cooling A cooler for cooling the storage chamber housed in the room, and a return duct for returning cool air from the storage room other than the freezer room provided with a cooling chamber on the back of the room to the cooler are disposed in the cooling chamber. Detachable means for detachably attaching the return duct, the return duct can be attached to and detached from the refrigerator body without using a tool only by the detachable means, and liquid or foreign matter is contained in the return duct. Even if foreign matter or dirt adheres to the return duct, the user, who is not a service person, can easily remove and install the return duct by hand without using a tool with only the attaching / detaching means. It is possible to clean and wash the dirt or contaminating foreign substances serving as internal bacteria breeding in the original, it is possible to meet the needs of the user wants to keep the refrigerator more hygienic. As a result, it is possible to prevent diffusion of germs that affect food preservation into the cabinet and keep it in a hygienic refrigerator.

  According to a second aspect of the present invention, in the first aspect of the present invention, the refrigerator compartment is disposed above the refrigerator main body, the freezer compartment is disposed below the refrigerator compartment, and the return duct is disposed from the refrigerator compartment to the cooler. The return duct, which is the air passage part through which the air in the refrigeration room first passes, is more susceptible to bacterial growth and contamination than other duct parts. Since the return duct is arranged toward the lower part in the direction of gravity, foreign matters such as food juice and dirt flow down from the opening in the cabinet to the inside of the return duct, and liquid and foreign matter enter the duct. Foreign matter and dirt are likely to adhere, and as a result, the generated bacteria may circulate in the refrigerator and adhere / proliferate to the food in the refrigerator, which may deteriorate the food. Use tools only by attaching and detaching means By making it detachable, the user himself can clean and wash the inside of the return duct and improve the cleanability of the return duct, so that the propagation of bacteria such as food in the refrigerator can be effectively suppressed. .

  The invention according to claim 3 is the invention according to claim 1, wherein a refrigerator compartment is disposed above the refrigerator body, a freezer compartment is disposed below the refrigerator compartment, a vegetable compartment is disposed below the refrigerator compartment, and the return The duct is a communication duct that supplies cold air from the refrigerator compartment to the vegetable compartment. Even if liquid or foreign matter enters the communication duct from the refrigerator compartment or foreign matter or dirt adheres, the user himself / herself can communicate with the duct. The removal and installation of the duct can be done easily by hand without using tools, and the user himself can clean the inside of the communication duct, improving the cleanability inside the communication duct and using the inside of the communication duct Can satisfy the needs of those who want to wash themselves and satisfy their sense of security. Moreover, in a vegetable room whose temperature is higher than that in a refrigerator room, it is possible to suppress the growth of odors and fungi, and the state of preservation of vegetables can be kept good.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the return duct or the communication duct is heat-insulated in a cylindrical shape with a heat insulating member, and the heat insulating member is The return duct or the communication duct is detachable by attaching and detaching, and since the return duct or the communication duct is formed in advance in a cylindrical shape with the heat insulating member itself, a sealing member is provided between the inner box and the inner box. Since the duct is completed without the need for use, the reliability of the seal against cold air leakage is high.

  The invention according to claim 5 is the invention according to any one of claims 1 to 3, wherein the return duct or the communication duct is formed by a heat insulating member and a part of an inner box of the heat insulating box. The return duct or the communication duct is made detachable by attaching and detaching the heat insulating member, and when the user removes the return duct or the communication duct, the return duct or The side facing the inner box of the communication duct is open, and the inside of the duct is exposed and can be easily checked, so that cleaning and washing by the user can be performed more easily and reliably.

  The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein no electrical component is provided in the return duct or the communication duct, and no tool is used only by the attaching / detaching means, It is designed to be detachable with respect to the refrigerator main body, and insertion / removal of connectors of electrical parts and wiring work associated with attachment / detachment of the return duct or the communication duct are unnecessary, from the safety aspect of the product, A general user himself / herself could not attach or detach the return duct or the communication duct, but can remove and install the return duct or the communication duct even if it is not a service person having specialized knowledge. It will be.

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein the attaching / detaching means attaches / detaches the return duct or the communication duct to / from the refrigerator main body. And a second attaching / detaching means for attaching / detaching the partition member to / from the refrigerator main body. When the user wants to clean or wash the return duct or the communication duct, Then, the second attaching / detaching means of the partition member is operated and removed, and then the return duct or the communicating duct can be removed by operating and removing the return duct or the first attaching / detaching means of the communicating duct. After that, in reverse order, the return duct or the first attachment / detachment means of the communication duct is operated and attached, and then the second attachment / detachment means of the partition member is operated. Kicking it, it is possible to attach and detach the duct or the communicating duct back to facilitate without using a tool by the user.

  The invention according to claim 8 is the invention according to any one of claims 1 to 6, wherein the attaching / detaching means comprises only attaching / detaching means for attaching / detaching the partition member to / from the refrigerator body. The return duct or the communication duct is pressed and held by the mounting of the member, and the built-in depth dimension relationship is appropriately designed so that the partition member and the return duct or the communication duct can be maintained in the pressed state in the assembled state. By adopting a compression member such as foam material, the return member or the communication duct can be indirectly pressed and sealed by operating the attaching / detaching means of the partition member. In this case, the attaching / detaching means is disposed on the partition member side. It is sufficient to provide only a reasonable configuration.

  The invention according to claim 9 is the invention according to any one of claims 1 to 6, wherein the partition member and the return duct or the communication duct are integrally formed, and the partition member is configured as the refrigerator main body. The return duct or the communication duct can be attached / detached only by attaching / detaching means for attaching / detaching to / from the user, and the user simply removes the attaching / detaching means for attaching / detaching the partition member from the inner box by hand without using a tool. Thus, the return duct or the communication duct can be removed at the same time, and the return duct or the communication duct can be cleaned more easily. In addition, it is not necessary to provide a return duct or an attaching / detaching means dedicated to fixing the communication duct, the configuration can be simplified, the cost can be reduced, and the user's trouble of attaching / detaching can be reduced.

  According to a tenth aspect of the present invention, in the invention according to any one of the first to ninth aspects, the cooler is at least a front surface covered with a second partition member between the partition member and the cooler. The partition member 2 is attached to and detached from the refrigerator body using a tool, and is not designed to be detachable by the user himself / herself, but only when a professional engineer such as a serviceman needs to repair or replace parts. Since it is configured to be detachable with a tool and means such as screws, or a combination structure that cannot be easily detached by a general user, the return duct or the communication duct may be configured to be easily detachable by the user. The user cannot easily remove the second partition member, ensuring the safety of the user, and touching functional parts such as electrical parts and refrigeration cycle parts housed in the second partition member. It is possible to eliminate the influence of the product functional reliability due to the.

  The invention according to claim 11 is the invention according to any one of claims 7 to 9, wherein the partition member includes a partition member that covers the return duct or the communication duct from a front surface and the second partition member. The partition member is divided into a partition member that covers from the front surface, and the partition member that covers the return duct or the communication duct from the front surface can be attached to and detached from the refrigerator body without using a tool only by the attachment and detachment device. By removing the partition member that covers the return duct or the communication duct from the front surface, only the return duct or the communication duct is exposed, and the second partition member is covered with the partition member. The return duct or communication duct can be attached and detached without the user's hand touching the housed functional parts such as electrical parts and refrigeration cycle parts. Ri, and to the injuries accidentally user to prevented, it is possible to ensure safety.

  In addition, the size of the partition member that separates the freezing chamber and the cooling chamber is divided into two parts on the left and right, and the size of the partition member that needs to be attached and detached is compact. The burden and difficulty can be reduced.

  The invention according to claim 12 is the invention according to claim 10 or 11, wherein the second partition member is provided with a blower for sending cold air cooled by the cooler to the storage chamber, A safety protection structure is provided so as to cover the front, and when the user removes the partition member without stopping the operation of the refrigerator, it prevents accidental touching the blower and causing injury. Can keep safe.

  The invention according to claim 13 is the invention according to claim 5, wherein the refrigerator return duct or the communication duct is provided with a heater on the rear side of the duct projection surface of the inner box, and a cross section of the return duct. Because the shape is, for example, approximately U-shaped and the surface facing the inner box is open, the heat of the heater acts in the return duct via the inner box, and there is no heater in the return duct itself However, it is possible to prevent dew condensation and frost / icing from occurring in the return duct.

  According to a fourteenth aspect of the present invention, in the invention according to any one of the first to sixth aspects, at least a front surface of the cooler is covered with a second partition member between the partition member and the return member. The duct or the communication duct is configured by a part of a heat insulating member that covers the second partition member, and the partition member and the return duct or the communication duct are configured integrally, and the partition member is Since the return duct or the communication duct can be attached / detached only by the third attaching / detaching means to be attached to / detached from the second partition member, the user can manually operate the attaching / detaching means for attaching / detaching the partition member without using a tool. Then, the return duct or the communication duct can be removed at the same time simply by removing it from the second partition member, and the return duct or the communication duct is more easily cleaned. Door can be. In addition, it is not necessary to provide a return duct or an attaching / detaching means dedicated to fixing the communication duct, the configuration can be simplified, the cost can be reduced, and the user's trouble of attaching / detaching can be reduced.

  Furthermore, the partition member is a third attachment / detachment means and is attached to the second partition member via the heat insulating member, thereby narrowing a gap formed between the second partition member and the heat insulating member. It is possible to reduce the short circuit of the cold air cooled by the cooler into the gap formed by the second partition member and the heat insulating member. In addition, the sealing performance between the return duct or the communication duct and the inner box is improved, the amount of cool air flowing from the communication duct to the vegetable compartment can be secured, and the second partition member due to a poor seal between the communication duct and the inner box. Can reduce frost formation.

  According to a fifteenth aspect of the present invention, in the invention according to any one of the first to sixth aspects, the cooler is at least a front surface covered with the second partition member between the partition member and the return member. The duct or the communication duct is configured by a part of a heat insulating member that covers the second partition member, and the partition member and the return duct or the communication duct are configured integrally, and the partition member is The return duct or the communication duct can be attached / detached by the third attaching / detaching means for attaching / detaching to / from the partition member and the fourth attaching / detaching means for attaching / detaching the partition member to / from the inner box. The user can also remove the return duct or the communication duct at the same time by simply operating the attachment / detachment means for attaching / detaching the partition member by hand without using a tool to remove it from the second partition member and the inner box. Come, it is possible to clean the duct or the communicating duct returns to more easily. In addition, it is not necessary to provide a return duct or an attaching / detaching means dedicated to fixing the communication duct, the configuration can be simplified, the cost can be reduced, and the user's trouble of attaching / detaching can be reduced.

  Furthermore, the partition member is a third attachment / detachment means and is attached to the second partition member via the heat insulating member, thereby narrowing a gap formed between the second partition member and the heat insulating member. It is possible to reduce the short circuit of the cold air cooled by the cooler into the gap formed by the second partition member and the heat insulating member. In addition, the sealing performance between the communication duct and the inner box is improved, the air volume of the cold air flowing from the communication duct to the vegetable compartment can be secured, and the second partition member is attached to the second duct member due to poor sealing between the communication duct and the inner box. Frost can be reduced.

  Furthermore, since the partition member is attached to the inner box by the fourth attaching / detaching means, both ends of the partition member can be prevented from warping toward the freezer compartment, that is, both ends of the partition member are frozen. Since it is pressed against the back of the room, it is possible to reduce the short circuit of the cold air flowing through the communication duct to the freezer room.

  According to a sixteenth aspect of the present invention, in the invention according to the fifteenth aspect, the fourth attaching / detaching means includes a claw portion provided in the partition member and a concave portion provided in the inner box. The return duct or the communication duct can be detachable with a simple structure and without increasing the number of parts.

  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 in which the refrigerator door in the first embodiment of the present invention is omitted, FIG. 2 is a side sectional view in which the refrigerator door in the same embodiment is omitted, and FIG. 3 is in the same embodiment. FIG. 4 is a perspective view showing the configuration of the cooling chamber of the refrigerator, FIG. 4 is a plan view showing the configuration of the cooling chamber of the refrigerator in the same embodiment, and FIG. 5 is a diagram showing the mounting state of the return duct in the same embodiment.

  6 is a perspective view showing an example of the operation side of the attaching / detaching means used in the refrigerator in the embodiment, and FIG. 7 is a perspective view showing an example of the fixing side of the attaching / detaching means used in the refrigerator in the embodiment. FIG. 8 is a perspective view of the connected state of the attaching / detaching means in the same embodiment.

  1, 2, and 3, a refrigerator main body 100 has a plurality of storage chambers defined in a heat insulating box 101 by a heat insulating partition wall 102 having heat insulating performance. The lower chamber of the heat insulating partition wall 102 is configured as a freezing chamber 105 having a cooling chamber 104 that houses the cooler 103 at the back thereof, and is located above the freezing chamber 105 and above the heat insulating partition wall 102. The refrigerator compartment 106 is arranged, that is, it comprises a heat insulation box 101 provided with a refrigerator compartment 106 at the upper part of the refrigerator main body and at least two storage compartments in which the refrigerator compartment 105 is arranged below the refrigerator compartment 106.

  The front opening of each storage room is provided with a heat insulating door filled with a foam heat insulating material such as urethane, a revolving door (not shown) in the refrigerator compartment 106, and a drawer type in the freezer compartment 105. Doors (not shown) are provided.

  The heat insulating box 101 has a heat insulating wall formed by injecting a foam heat insulating material 109 into a space constituted by an inner box 107 formed by vacuum molding a resin body such as ABS and an outer box 108 using a metal material such as a pre-coated steel plate. I have. For example, rigid urethane foam, phenol foam, styrene foam, or the like is used as the foam heat insulating material 109. Use of hydrocarbon-based cyclopentane as the foaming material is better from the viewpoint of preventing global warming.

  Next, each storage chamber of the heat insulation box 101 will be described.

  The refrigerator compartment 106 is normally set at 1 to 5 ° C. with the lower limit of the temperature at which it does not freeze for refrigerated storage. A plurality of shelves (not shown) are provided for organizing and storing food and the like.

  The freezer room 105 is normally set at −22 to −18 ° C. for frozen storage, but may be set at a low temperature of −30 ° C. or −25 ° C., for example, to improve the frozen storage state. . The refrigerator stores a freezer container (not shown) that can organize and store food.

  Next, the flow of cool air in the heat insulating box 101 will be described.

  Cold air generated in the cooler 103 in the cooling chamber 104 is forcibly blown to the freezer compartment 105 by the blower 110, and cold air generated in the cooler 103 in the cooling chamber 104 is supplied to the refrigerator compartment 106. These rooms are configured to be cooled to a predetermined temperature by forcibly blowing air by the blower 110 through the damper device 111 and the cooling duct cooling air duct 112.

  In the cooling chamber 104, a return duct 113 for returning the cool air from the refrigerating chamber 106 to the cooler 103 is disposed adjacent to the side of the cooler 103, and a lower end portion of the return duct 113 is disposed in the cooler. The lower part of 103 is communicated and opened.

  A partition member 114 made of a hard resin material is provided between the cooling chamber 104 and the freezing chamber 105 to divide both chambers in the front-rear direction and constitute the back cover of the freezing chamber 105. The partition member 114 is provided with a cold air outlet 114 a into the freezer compartment 105 and a cold air inlet 114 b from the freezer compartment 105.

  In the cooling chamber 104, a second partition member 115 made of a soft foamed resin such as foamed polypropylene or polypropylene resin and a return duct 113 made of foamed polystyrene resin, etc., which are integrally covered with the partition member 114, are arranged. In the second partition member 115, the cooler 103 that cools the inside air by exchanging heat in the cabinet and the cooler 103 disposed above the cooler 103 is sent to the freezer compartment 105 and the refrigerator compartment 106. The blower 110 for this purpose and the defrost heater 116 for defrosting the frost adhering to the cooler 103 at the time of cooling are accommodated below the cooler 103. The damper device 111 may be disposed in the heat insulating partition wall 102 or the refrigerator compartment 106, but may be accommodated integrally in the second partition member 115.

  That is, the partition member 114, the second partition member 115, and the return duct 113 are individually divided and include three component blocks.

  Here, as these assembly configurations, the user himself removes the partition member 114, and the user himself can configure the return duct 113 to be detachable without using a tool.

  Specifically, an attachment / detachment means 117 (details will be described later) that makes the return duct 113 detachable without using a tool is provided, and the return duct 113 is attached to the refrigerator main body 100 by hand without using a tool only by the attachment / detachment means 117. Detachable.

  As shown in FIGS. 4 and 5, the return duct 113 is formed in a cylindrical shape by a heat insulating member 118 formed of expanded polystyrene or the like having a substantially U-shaped cross section and a part of the inner box 107. The heat insulation is configured, and the user can attach and detach the return duct 113 by attaching and detaching the heat insulating member 118. Further, if the sealing property of the return duct 113 is to be ensured on the contact surface with the inner box 107 of the heat insulating member 118 having a substantially U-shaped cross section, a sealing member 119 such as a soft foam foam is returned to the return duct. Affixed to the rear end surface side of 113 and sealed with the inner box 107.

  Although it is necessary to seal the upper end portion of the return duct 113 with the connecting portion, in order to make the attachment and detachment easier, the shape of the upper end of the heat insulating member 118 is devised as shown in FIG. If a sealing member 120 such as foamed foam is attached to the end face as an end face of an oblique cut having a taper shape, the user can hold the heat insulating member 118 and detach it only by moving in the front-rear direction. There is an advantage that not only the sealing performance but also the sealing performance of the upper connecting portion can be easily secured.

  The seal member 120 on the upper end surface may be affixed to the upper end surface side of the heat insulating member 118. However, the user may damage the heat insulating member 118 during cleaning or handling during cleaning, or may contain moisture remaining during cleaning. If there is a concern about influence (freezing or the like), a seal member may be attached to the refrigerator main body 100 side.

  Further, the return duct 113 is not directly provided with electric parts such as a heater, and the heater 121 for preventing condensation or frost / icing in the return duct 113 is located behind the projection surface of the return duct 113 of the inner box 107. Is provided.

  In addition, here, the user means a general consumer who uses the refrigerator, and does not mean a service person who performs repair or inspection with specialized knowledge or special tools. Absent.

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

  A part of the cool air generated in the cooler 103 is sent into the freezer compartment 105 from the cool air discharge port 114 a provided in the partition member 114 by the blower 110, and after cooling the freezer compartment 105, the cool air provided in the partition member 114 is cooled. It returns to the lower part of the cooler 103 in the cooling chamber 104 through the suction port 114b and repeats the circulation again.

  On the other hand, the remaining cool air generated in the cooler 103 is sent to the damper device 111 by the blower 110. The damper device 111 sends cold air to the cooling duct cooling air duct 112 while controlling the opening degree of the ventilation path based on the detection value of the internal temperature sensor (not shown).

  The cool air sent to the cooling duct cooling air duct 112 passes through the refrigerating room cool air passage inlet 122 provided at the back of the heat insulating partition wall 102 and the refrigerating room cool air passage 123 provided at the back of the refrigerating room 106. The inside of the refrigerator compartment 106 is cooled to a predetermined temperature by being discharged from the refrigerator compartment cold air outlet 125 provided in the refrigerator compartment panel 124 constituting the rear cover of the refrigerator compartment.

  The cold air that has cooled the inside of the refrigerator compartment 106 to a predetermined temperature is supplied from a refrigerator inlet 126 provided in the back or bottom of the refrigerator compartment 106 to a return duct 113 provided on the side of the cooler 103 in the cooling compartment 104. , Returned to the lower part of the cooler 103, and heat-exchanged again in the cooler 103 to be cooled.

  In addition, since the user himself can remove the partition member 114 and the return duct 113 can be attached and detached, the return duct 113 is accommodated in the refrigerating room 106 from the refrigerating room cold air inlet 126 and the like in the refrigerating room. The user may be contaminated with liquids or foreign substances such as food or beverages, or through the inside of the refrigerator compartment 106 due to the circulation of air containing odors and dirt outside the cabinet or when the door is opened or closed. Even if the user becomes concerned about hygiene, the user can easily remove and install the return duct 113 by hand without using a tool, and the user himself cleans the inside of the return duct 113. The return duct 113 can be maintained in a hygienic state, and the inside of the return duct 113 can be cleaned and washed by the user himself / herself to satisfy the need for satisfaction.

  Usually, the return duct 113, which is an air passage portion through which air in the refrigerator compartment 106 first passes, is more prone to germs and dirt than other duct portions, and further, the refrigerator compartment 106 is the refrigerator main body 100. In recent mainstream layouts arranged at the top of the refrigeration chamber, the arrangement position of the interior opening of the return duct 113 is generally provided in the lower part of the refrigerator compartment 106 in order to increase the convection cooling efficiency in the room, In addition, since the return duct 113 is arranged toward the lower part in the gravitational direction, foreign matters and dirt such as food juice flow down into the return duct 113 from the opening in the warehouse, and liquid and foreign matters enter the return duct 113. As a result, the generated bacteria may circulate in the refrigerator, and the bacteria may adhere to / growing on the food in the refrigerator to deteriorate the food.

  However, according to the present embodiment, the attachment / detachment means 117 that allows the return duct 113 to be attached / detached is provided, and the return duct 113 can be attached to / detached from the refrigerator main body 100 by using only the attachment / detachment means 117 without using a tool. As a result, the user himself can clean and wash the inside of the return duct 113 and improve the cleanability of the inside of the return duct 113, so that the propagation of bacteria such as food in the refrigerator can be suppressed.

  As shown in FIG. 4, the return duct 113 is thermally insulated in a cylindrical shape by the heat insulating member 118 and a part of the inner box 107, and the user himself attaches and removes the heat insulating member 118 to return the duct. 113 can be attached and detached, and a general user himself can easily remove and attach the return duct 113.

  If the heat insulating member 118 has such a substantially U-shaped cross section, the side of the return duct 113 facing the inner box 107 is open, and the inside of the duct is exposed when the return duct 113 is removed. Therefore, there is an advantage that the user can easily and surely perform cleaning and cleaning.

  In addition, since the return duct 113 is not provided with an electrical component such as a heater, and the return duct 113 can be attached and detached independently, insertion / removal of a connector, wiring work, etc. accompanying the attachment / detachment of the return duct 113 can be performed. It becomes unnecessary, and from the viewpoint of product safety, the general user himself / herself can remove and attach the return duct 113 in contrast to the fact that the return duct 113 cannot be attached or detached.

  The return duct 113 is provided with a heater 121 only on the back side of the projection surface of the return duct 113 of the inner box 107. The return duct 113 has a substantially U-shaped cross-section and the surface facing the inner box 107 is open. Therefore, the heat of the heater 121 acts in the return duct 113 via the inner box 107, and even if no heater is provided in the return duct 113 itself, dew condensation or frost / icing occurs in the return duct 113. Can be prevented.

  Next, the attaching / detaching means 117 that makes these return ducts 113 attachable / detachable by hand without using a tool will be described.

  As shown in FIGS. 6, 7, and 8, the attaching / detaching means 117 that enables the return duct 113 to be attached to and detached from the inner box 107 includes a push rivet 127 as a rotating member and a grommet 128 as a fixing member. Composed.

  The push rivet 127 is a male-type fixture for attaching the return duct 113 to the inner box 107, and is formed from a knob portion 129 for manual operation and a convex portion 131 that fits into the concave portion 130 of the grommet. ing.

  The grommet 128 is a female-type fixing tool for attaching the return duct 113 to the inner box 107. The grommet 128 is embedded in the inner box 107 and the concave portion 130 that fits the convex portion 131 of the push rivet, and is fixed by a foam heat insulating material. The convex part 132 is formed.

  The return duct 113 has a total of four push rivet attachment holes 133 on the left and right sides. Specifically, the push rivet knob portion 129 is held by hand, and the push rivet convex portion 131 is inserted into the concave portion 130 of the grommet through each mounting hole 133, and a pressing force is applied by hand. By rotating, the push rivet 127 is fixed to the grommet 128, and the return duct 113 is attached to the inner box 107.

  The push rivet 127 and the grommet 128 have cam surfaces 134 and 135 that are inclined with respect to each other in the mounting rotation direction. When the push rivet 127 is rotated 90 degrees and fixed, it slides in the axial direction. A pressing force (compression force) acts on the return duct 113 against the inner box 107. With this pressing force, the heat insulating member 118 is surely pressed against the inner box 107, and a cold air passage that does not cause cold air leakage is formed on the outer periphery thereof.

  Also, the protrusion 131 of the push rivet and the recess 130 of the grommet are provided with contact surfaces 136 and 137, respectively, so that the rotation is stopped after being rotated 90 degrees. Further, the push rivet 127 and the grommet 128 are provided with convex shapes 138 and 139 which are wrapped with each other in a fixed state, function as locking means when the attaching / detaching means is fixed, and are not easily detached by vibrations such as transportation. I am doing so.

  On the other hand, regarding the removal of the return duct 113 from the inner box 107, the push rivet 127 is manually rotated in the direction opposite to the direction in which the push rivet 127 is attached, so that the push rivet 127 is separated from the grommet 128. Can be removed.

  The operation of the attaching / detaching means 117 configured as described above will be described below.

  The return duct 113 is a state in which a compression force is applied by screwing the push rivet 127 into a grommet 128 embedded in the inner box 107 while manually applying a pressing force in a rotating direction through an attachment hole (described later). Since the return duct 113 can be detached from the inner box 107 by manually turning the push rivet 127 in the direction opposite to the direction of attachment, the return duct 113 always has a compressive force. Therefore, the return duct 113 and the inner box 107 can be reliably sealed, and the return duct 113 having a highly airtight cooling passage can be provided.

  Further, the return duct 113 and the inner box 107 can be easily detached and attached by hand.

  Furthermore, since the inside of the return duct 113 is open, the cleanability of the inside of the return duct 113 is improved.

  Further, by providing cam surfaces 134 and 135 as inclined surfaces on the outer periphery of the fitting portion of the push rivet 127 and the grommet 128, the return duct can be returned to the fixed state by the rotation without the push rivet 127 being pushed when the mounting is rotated. The pressing force (compression force) of 113 to the inner box 107 can be applied, and the workability can be improved.

  Further, the contact surfaces 136 and 137 are provided so that the rotation angle of the push rivet 127 stops at 90 degrees, and the convex shapes 138 and 139 for preventing reverse rotation are further provided, so that the appearance of the knob portion 129 serving as a design surface is constant. It can be kept in high quality.

  Note that when the return duct 113 and the inner box 107 are tightly fixed using the attaching / detaching means 117 as described above, the operation-side parts corresponding to the push rivet 127 are specifically positioned and fitted to the attaching / detaching means 117. It is necessary to process the mounting hole 133 to be inserted, but if it is directly formed on the heat insulating member 118 made of foamed polystyrene or the like, the fixing strength is also weak, and it cannot withstand repeated use and may be permanently deformed or damaged, resulting in the expected mounting accuracy. Therefore, in practice, a cylindrical resin is insert-molded into the mounting hole 133, or a resin-molded holding member is partially integrated only in the vicinity of the mounting hole of the return duct 113. It is also effective to use a means for processing the mounting hole 133 by processing it or by covering the entire outline of the return duct 113 with a resin cover integrally formed with the mounting hole processing. Is a basis.

  As described above, an example of the attaching / detaching means 117 that can be attached / detached without using a tool is shown above. However, the present invention is not limited to this example, and various kinds of attaching / detaching means including commercially available ones can be used. Can do.

  Note that the second partition member 115 in which functional parts such as the cooler 103, the blower 110, the defrost heater 116, or in some cases, the electrical components such as the damper device 111 and the refrigeration cycle parts are accommodated is the safety and Unlike the return duct 113 in which no part directly related to reliability is mounted, the user himself / herself is not configured to be attached / detached without using a tool, for example, a configuration that cannot be attached / detached without using a tool such as a screw stopper. In addition, a configuration that cannot be easily attached / detached without the use of a tool, and that can be attached / detached only when necessary for repairs or replacement of parts by service technicians, etc. It is said. For example, in the present embodiment, as shown in FIG. 3, mounting holes 140 are provided at appropriate locations on the left and right sides of the second partition member 115, and receiving portions (fixed to the back surface of the inner box 107 through the mounting holes 140 ( A screw or the like is securely fixed to and attached to a tool (not shown).

  In this way, a professional engineer such as a service person can attach and detach with a tool and a means such as a screw only when necessary for repair or replacement of parts, or a combination structure that a general user cannot easily attach and detach Therefore, even if the return duct 113 is configured to be easily detachable by the user, the user cannot easily remove the second partition member 115, ensuring the safety of the user, It is possible to eliminate the influence on the reliability of the product function by touching the functional parts such as the electric parts and the refrigeration cycle parts accommodated in the partition member 115.

  In addition, the rib 115b, which is a safety protection structure formed in a slit shape with an interval of a size that does not allow a finger, for example, to cover the front opening 115a at the attachment portion of the blower 110 of the second partition member. If the user removes the partition member 114 without stopping the operation of the refrigerator, the user can be prevented from accidentally touching the blower 110 and getting injured, thereby maintaining safety. . In addition, although it assumed that it was formed in a slit shape here, it can be formed in any shape such as a lattice shape in balance with the blowing resistance.

  On the other hand, with respect to the attachment / detachment of the partition member 114 that integrally covers the second partition member 115 and the return duct 113 from the front surface, as with the attachment / detachment of the return duct 113, the attachment / detachment means is provided via the attachment holes 141 provided at appropriate positions on the outer peripheral portion. 117 is configured so that the user can easily attach and detach the inner box 107 by hand without using a tool.

  Therefore, the structure of the cooling chamber 104 is roughly divided into three component blocks divided into a partition member 114, a second partition member 115, and a return duct 113. Of these, the partition member 114 and the return duct 113 are divided into three parts blocks. When the user wants to clean or wash the return duct 113, first, the partition member 114 on the back surface of the freezer compartment 105 is attached to a detachable means (for explanation). Operate and remove 117 (referred to as second attachment / detachment means for distinction), and then remove return duct 113 by manipulation of attachment / detachment means (referred to as first attachment / detachment means for distinction in explanation) 117 Is possible. After the treatment, the return duct 113 is attached by operating the attaching / detaching means (referred to as the first attaching / detaching means for the sake of explanation) 117 in the reverse procedure, and then the partition member 114 is attached / detached (described in the description). By operating and attaching 117 (referred to as second attaching / detaching means for distinction), the cooling chamber 104 can be returned to the normal configuration again.

  As described above, in a refrigerator having a layout in which the refrigerator compartment 106 is arranged above the mainstream freezer compartment 105 in recent years, the arrangement position of the opening portion of the return duct 113 on the refrigerator compartment 106 side (that is, the refrigerator compartment cold air inlet 126) is In view of the efficiency of the indoor convection cooling, the lower part of the refrigerator compartment is often used. Specifically, an indoor opening is provided on the lower surface (bottom face) of the refrigerator compartment or the lower rear part of the refrigerator compartment. Many.

  In this case, tableware containing liquid soup, liquid beverage bottles, seasonings, etc. are often placed below the user's own shoulders in consideration of the burden on the arm when taking in and out, and flows from the tableware, beverage bottles, etc. There may be a case where foreign matter, food juice, beverages, and the like that have come out return to the duct 113 from the interior opening (refrigeration room cold air inlet 126). Moreover, air containing various miscellaneous bacteria components and odor components is stored in the refrigerating chamber 106, which has a large storage capacity, stores miscellaneous foods, and has an opportunity for intrusion of outside air by opening and closing the door and a large amount of the refrigerator compartment 106. Since these airs are first returned and circulated through the duct 113, there is a concern that dirt or bacteria may adhere to the return duct 113.

  According to the present embodiment, the user himself / herself can also attach / detach the return duct 113 to / from the refrigerator main body 100 by hand without using a tool only by the attaching / detaching means 117 according to the present embodiment. Since the inside of the return duct 113 can be cleaned and washed and the inside of the return duct 113 can be kept hygienic, it is possible to provide a more hygienic refrigerator by suppressing the growth of bacteria such as food in the refrigerator.

  As for the arrangement of the opening in the refrigerator compartment (refrigeration room cold air inlet 126), it is often provided in the lower part of the refrigerator room 106 as described above. For example, in addition to the lower part of the refrigerator room 106, food and the like are arranged. In some cases, an in-compartment opening is provided in the vicinity of the back end of the shelf for storage (not limited to the lowest shelf, but may be provided in a distributed manner on each of the plurality of shelves). In this case, the same applies to a case in which foreign matter, food juice, beverages, or the like flowing from tableware, beverage bottles, etc. flow into the return duct 113 from the opening (in the refrigerator compartment cold air inlet 126) through this shelf. It is possible to exhibit the effects of the above.

(Embodiment 2)
FIG. 9 is a plan view showing the configuration of the cooling chamber of the refrigerator in the second embodiment of the present invention.

  As for the shape of the heat insulating member of the return duct, there is a method in which the heat insulating member 142 is formed in a cylindrical cross section as shown in FIG. 9 in addition to the substantially U-shaped cross section as in the first embodiment.

  In this case, since the heat insulating member 142 itself is formed in a cylindrical shape in advance, the ease of cleaning and cleaning inside the return duct 143 is inferior to the shape of the heat insulating member 118 of the first embodiment shown in FIG. 4, it is not necessary to use the seal member 119 between the inner box 107 and the heat insulating member 118 shown in FIG. 4, and only a seal member (not shown) on the upper end surface is sufficient, and it is formed in a cylindrical shape in advance. Therefore, the reliability of the seal is high.

  The sealing member (not shown) on the upper end surface may be attached to the upper and lower end surfaces of the heat insulating member 142. However, the user may damage the heat insulating member 142 during cleaning or handling, or moisture during cleaning. If there is a concern about the effect of residual content (such as freezing), a seal member may be attached to the refrigerator main body 100 side.

  If the heat insulating member 142 is cylindrical as described above, a sufficient effect can be obtained even if a heater for preventing condensation or frost / icing in the return duct 143 is provided behind the return duct projection surface of the inner box 107. Although it cannot be expected, even if the inner box 107 is not provided with a heater, the defrost heater 144 of the cooler is used as a radiant heating type heater such as a glass tube heater, and one end side of the defrost heater 144 is returned to the return duct 143. When the cooler 103 is defrosted, the return duct 143 is heated by the radiant heat draft effect of the defrost heater 144 to prevent condensation and frost / freezing. It is possible.

  Note that the heat insulating member may be formed in a cross-sectional cylindrical shape by sticking a thin sheet-like or tape-like member having no good heat conductivity to the heat insulating member having a substantially U-shaped cross section.

  In this case, the ease of cleaning and cleaning inside the return duct is inferior to the shape of the heat insulating member 118 of Embodiment 1 shown in FIG. 4, but the upper end surface and lower end surface of the return duct and the duct on the refrigerator main body side In such a gap, foreign matter can easily infiltrate or accumulate, and in such a case, the upper end surface and lower end surface of the return duct can be cleaned and washed, and the cleanability of the return duct can be improved.

(Embodiment 3)
FIG. 10 is a plan view showing the configuration of the cooling chamber of the refrigerator in the third embodiment of the present invention.

  In the figure, a single partition member 145 made of a hard resin material that constitutes the back cover of the freezer compartment 105 covers the second partition member 115 and the return duct 146 at the same time. The partition member 115 is disposed on the side in the left-right direction and is configured integrally with the partition member 145. That is, in the present embodiment, it is composed of an integrated partition member 145, return duct 146, second partition member 115, and two component blocks.

  The integrally configured means not only the integral molding process in terms of material, but also a material in which different materials are coupled by a coupling means such as an adhesive or an interlocking structure.

  Since the partition member 145 and the return duct 146 have such an integrated configuration, the user simply operates the attachment / detachment means 117 for attaching / detaching the partition member 145 by hand without using a tool, and removes it from the inner box 107. The return duct 146 can also be removed at the same time, and when the cross-sectional shape of the heat insulation member 147 of the return duct is substantially U-shaped, the inside of the return duct 146 is exposed, and the return duct 146 is more easily cleaned. Can do.

  Accordingly, it is not necessary to provide the attaching / detaching means 117 dedicated to fixing the return duct 146, the configuration can be simplified, the cost can be reduced, and the user's trouble of attaching / detaching can be reduced.

  However, the depth dimension of the return duct 146 is set to the inner box in order to ensure the sealing performance with the inner box 107 of the return duct 146 having a substantially U-shaped cross section only by the attaching / detaching means 117 of the partition member 145. A sealing member such as a soft foam heat insulating foam provided on the rear end surface of the heat insulating member 147 of the return duct with a pressing force at the time of attaching with the attaching / detaching means 117 is made as tight as possible with respect to the depth interval between the 107 and the partition member 145. It is necessary to consider a configuration that compresses and presses against the inner box 107.

  In the present embodiment, the return duct 146 is integrally formed with the partition member 145, and the return duct 146 is pressed and sealed against the inner box 107 by the pressing force when the partition member 145 is attached by the attaching / detaching means 117. However, if temporary fixing of the return duct 146 can be performed with high accuracy, the built-in depth dimension relationship can be appropriately designed without using the return duct 146 integrally with the partition member 145, or a compression member such as foam material can be used. By adopting, it is possible to first temporarily fix the return duct 146 in contact with the inner box 107, and then press the partition member 145 and operate the attaching / detaching means 117 to indirectly press-seal the return duct 146. is there.

  Also in this case, it is sufficient to provide the attaching / detaching means 117 only on the partition member side.

  The return duct 146 may be temporarily fixed by temporarily fixing the return duct 146 not to the refrigerator body 100 side but to the partition member 145 side in advance.

(Embodiment 4)
FIG. 11 is a perspective view showing the configuration of the cooling chamber of the refrigerator in the fourth embodiment of the present invention, and FIG. 12 is a plan view showing the configuration of the cooling chamber of the refrigerator in the same embodiment.

  In the figure, the cooling chamber 148 is covered with two partition members 149 and 150 that are divided into left and right parts made of a hard resin material that constitutes the back cover of the freezing chamber 105. The partition member 149 covers the second partition member 151, and the partition member 150 independently covers the return duct 152. That is, in this embodiment, the partition members 149 and 150, the second partition member 151, and the return duct 152 are covered. And four component blocks.

  In addition, the side edge part of the partition members 149 and 150 is set as the structure wrapped so that it might overlap on front and back. It is desirable to have a wrap structure in which the partition member 150 that is likely to be attached / detached by the user is stacked on the partition member 149.

  The attaching / detaching means 117 that can be attached / detached without using a tool is always provided in the partition member 150 and the return duct 152, and the partition member 149 is provided with the attaching / detaching means 117 or a fixing method using a tool such as a screw. Good. When using the attachment / detachment means 117, structural considerations such as a slit structure in which the hand 110 does not directly touch the blower 110 in the second partition member 151 are necessary. On the other hand, since the second partition member 151 accommodates functional parts such as electric parts and parts of the refrigeration apparatus inside, a fixing method with a tool such as a screw or a method that does not easily come off so that the user cannot easily touch it. Take.

  When the user himself wants to remove the return duct 152, the partition member 150 is first removed by the attaching / detaching means 117, so that only the return duct 152 is exposed, and the second partition member 151 is the partition member 149. Since it is covered, it becomes possible to attach and detach the return duct 152 without the user's hand touching the blower 110 housed in the second partition member 151, and the user mistakenly touches the blower 110. It can prevent injuries by touching and improve safety.

  Next, the user manually operates the attaching / detaching means 117 fixing the return duct 152 without using a tool, removes the return duct 152, performs cleaning, washing, and the like, and then operates the attaching / detaching means 117 again. Thus, the return duct 152 can be attached to a predetermined position, and the partition member 150 can be attached by manually operating the attachment / detachment means 117 without using a tool.

  As described above, according to the present embodiment, the user can easily attach and detach components without using a tool, and the size of the partition member 150 that partitions the freezing chamber 105 and the cooling chamber 148 is right and left. Since the size of the partition member 150 that is required to be attached / detached is compact, it is easy to handle and can reduce the work burden and difficulty of the user.

(Embodiment 5)
FIG. 13: is a top view which shows the structure of the cooling chamber of the refrigerator in Embodiment 5 of this invention.

  In the figure, the cooling chamber 148 is covered with two partition members 149 and 153 that are divided into left and right parts made of a hard resin material that constitutes the back cover of the freezing chamber 105. Although the partition member 149 covers the second partition member 151 and the partition member 153 independently covers the return duct 154, the partition member 153 is configured integrally with the return duct 154. That is, in the present embodiment, the partition member 149, the second partition member 151, the integrated partition member 153, the return duct 154, and three component blocks are included.

  The integrally configured means not only the integral molding process in terms of material, but also a material in which different materials are coupled by a coupling means such as an adhesive or an interlocking structure.

  The side end portions of the partition members 149 and 153 are configured to be wrapped so as to overlap in the front-rear direction. It is desirable to have a wrap structure in which the partition member 153 that has a chance of attachment / detachment by the user is overlapped from above the partition member 149.

  The attaching / detaching means 117 that can be attached / detached without using a tool is always provided on the partition member 153, and the partition member 149 may be provided with the attaching / detaching means 117 or may be fixed by a tool such as a screw. When using the attachment / detachment means 117, structural considerations such as a slit structure in which the hand 110 does not directly touch the blower 110 in the second partition member 151 are necessary. On the other hand, since the second partition member 151 accommodates functional parts such as electric parts and parts of the refrigeration apparatus inside, a fixing method with a tool such as a screw or a method that does not easily come off so that the user cannot easily touch it. Take.

  Since the partition member 153 and the return duct 154 have such an integrated configuration, the user simply operates the attachment / detachment means 117 for attaching / detaching the partition member 153 by hand without using a tool and removes it from the inner box 107. The return duct 154 can also be removed at the same time, and when the cross-sectional shape of the heat insulating member 155 of the return duct is substantially U-shaped, the inside of the return duct 154 is particularly exposed, and the return duct 154 is more easily cleaned. Can do.

  Therefore, it is not necessary to provide the attaching / detaching means 117 dedicated to fixing the return duct 154, the configuration can be simplified, the cost can be reduced, and the user's trouble of attaching / detaching can be reduced.

  However, the depth dimension of the return duct 154 is set to the inner box in order to secure the sealing performance with the inner box 107 of the return duct 154 having a substantially U-shaped cross section only by the attaching / detaching means 117 of the partition member 153. A sealing member such as a soft foam heat insulating foam provided on the rear end face of the heat insulating member 155 of the return duct with a pressing force at the time of attaching with the attaching / detaching means 117 is made as tight as possible with respect to the depth interval between the 107 and the partition member 153. It is necessary to consider a configuration that compresses and presses against the inner box 107.

  In the present embodiment, the return duct 154 is integrally formed with the partition member 153, and the return duct 154 is pressed and sealed against the inner box 107 with a pressing force when the partition member 153 is attached by the attaching / detaching means 117. However, if the return duct 154 can be temporarily fixed with high accuracy, the return duct 154 is first designed by appropriately designing the built-in depth dimension relationship without the return duct 154 being integrated with the partition member 153. It is also possible to temporarily fix in contact with the box 107, and then press the partition member 153 and operate the attaching / detaching means 117 to press-seal the return duct 154.

(Embodiment 6)
FIG. 14 is a front view in which the refrigerator door in the sixth embodiment of the present invention is omitted, FIG. 15 is a side sectional view in which the refrigerator door in the same embodiment is omitted, and FIG. 16 is in the same embodiment. The perspective view which shows the structure of the cooling chamber of a refrigerator, FIG. 17 is a top view which shows the structure of the cooling chamber of the refrigerator in the same embodiment, FIG. 18 is a figure which shows the mounting state of the communication duct in the same embodiment.

  14, 15, and 16, the refrigerator main body 200 is partitioned into a plurality of storage rooms in a heat insulating box body 201 by heat insulating partition walls 202 and 203 having heat insulating performance. The middle chamber sandwiched between the upper heat insulating partition wall 202 and the lower heat insulating partition wall 203 is configured as a freezing chamber 206 provided with a cooling chamber 205 that houses a cooler 204 at its back. A refrigerator compartment 207 is disposed above the chamber 206, and a vegetable compartment 208 is disposed below the freezer compartment 206. That is, the refrigerator compartment 207 is disposed above the refrigerator main body, and the refrigerator compartment 206 and the freezer compartment are disposed below the refrigerator compartment 207. Below 206, it consists of the vegetable compartment 208 and the heat insulation box 201 which provided the three storage rooms.

  The front opening of each storage room is provided with a heat insulating door filled with foam heat insulating material such as urethane, for example, and the refrigerating room 207 has a rotary door (not shown), a freezing room 206, a vegetable room 208. Each has a drawer type door (not shown).

  The heat insulating box 201 has a heat insulating wall formed by injecting a foam heat insulating material 211 into a space formed by an inner box 209 formed by vacuum molding a resin body such as ABS and an outer box 210 using a metal material such as a pre-coated steel plate. I have. For example, rigid urethane foam, phenol foam, styrene foam, or the like is used as the foam heat insulating material 211. Use of hydrocarbon-based cyclopentane as the foaming material is better from the viewpoint of preventing global warming.

  Next, each storage chamber of the heat insulation box 201 will be described.

  The refrigerator compartment 207 is normally set at 1 to 5 ° C. with the temperature not frozen for refrigerated storage as the lower limit. A plurality of shelves (not shown) are provided for organizing and storing food and the like.

  The freezer compartment 206 is normally set at −22 to −18 ° C. for frozen storage, but may be set at a low temperature of −30 ° C. or −25 ° C., for example, to improve the frozen storage state. . The refrigerator stores a freezer container (not shown) that can organize and store food.

  The vegetable room 208 is generally set to a temperature of 2 ° C. to 7 ° C., which is equal to or slightly higher than that of the refrigerated room 207. The lower the temperature, the longer the freshness of the leaf vegetables can be maintained. The cabinet houses a vegetable compartment container (not shown) that can organize and store food such as vegetables.

  Next, the flow of cold air in the heat insulating box 201 will be described.

  The cold air generated in the cooling room 205 is sent to the refrigerating room 207 through the damper device 212 and the cooling room cooling air duct 213, and the cold air is sent from the refrigerating room 207 to the vegetable room 208 to the vegetable room 208. These chambers are configured to be cooled to a predetermined temperature by forcibly blowing air from the blower 215 through the communication duct 214.

  Here, the communication duct 214 is an air path that connects an opening provided in the lower part of the back of the refrigerator compartment 207 and an opening provided in the upper part of the back of the vegetable compartment in the vertical direction.

  A partition member 216 made of a hard resin material that constitutes a back cover of the freezer compartment 206 is provided between the cooling chamber 205 and the freezer compartment 206. The partition member 216 is provided with a cold air discharge port 216 a into the freezer compartment 206 and a cold air intake port 216 b from the freezer compartment 206.

  In the cooling chamber 205, a second partition member 217 made of a soft foamed resin such as foamed polypropylene or polypropylene resin, which is integrally covered with the partition member 216, and a communication duct 214 made of a foamed polystyrene resin or the like are disposed. In the second partition member 217, a cooler 204 that cools the interior air by exchanging heat in the cabinet, and a freezer compartment 206, a refrigerator compartment 207, and a vegetable compartment 208 that are disposed above the cooler 204. A blower 215 for sending cold air to the inside and a defrosting heater 218 for defrosting frost adhering to the cooler 204 during cooling are accommodated below the cooler 204. The damper device 212 may be disposed in the heat insulating partition wall 202 or the refrigerator compartment 207, but may be accommodated integrally in the second partition member 217.

  That is, the partition member 216, the second partition member 217, and the communication duct 214 are individually divided and include three component blocks.

  Here, as these assembly configurations, the user himself removes the partition member 216, and the user himself can configure the communication duct 214 to be detachable without using a tool.

  Specifically, it includes attachment / detachment means 117 (details will be described later) that allows the communication duct 214 to be attached / detached without using a tool, and the communication duct 214 is attached to the refrigerator main body 200 by hand without using a tool only by the attachment / detachment means 117. Detachable.

  As shown in FIGS. 16 and 17, the communication duct 214 is formed into a cylindrical shape with a heat insulating member 219 formed of expanded polystyrene or the like having a substantially U-shaped cross section and a part of the inner box 209. The heat insulation is configured, and the user can attach and detach the communication duct 214 by attaching and detaching the heat insulating member 219. In addition, on the contact surface of the heat insulating member 219 having a substantially U-shaped cross section with the inner box 107, if the sealing performance of the communication duct 214 is to be ensured, a sealing member 220 such as a soft foam is connected to the communication duct. Affixed to the rear end face side of 214 to seal with the inner box 209.

  Although it is necessary to seal the upper and lower ends of the communication duct 214 with the connecting portion, in order to make the attachment and detachment easier, the shape of the upper and lower ends of the heat insulating member 219 is devised as shown in FIG. If the sealing member 220 such as foamed foam is pasted on the end face as an end face of the oblique cut that is tapered toward the end, the user can hold the heat insulating member 219 and remove it only by moving in the front-rear direction. There is an advantage that not only the sealing property with the box 209 but also the sealing property of the upper connecting portion can be easily secured.

  The upper and lower end seal members 220 may be attached to the upper and lower end surfaces of the heat insulating member 219. However, the user may damage the heat insulating member 219 during cleaning or handling during cleaning, or the remaining moisture content during cleaning. If there is a concern about influence (freezing or the like), a seal member may be attached to the refrigerator main body 200 side.

  Further, the communication duct 214 is not directly provided with electric parts such as a heater, and the heater 221 for preventing condensation or frost / icing in the communication duct 214 is provided on the rear side of the projection surface of the communication duct 214 of the inner box 209. Is provided.

  In addition, here, the user means a general consumer who uses the refrigerator, and does not mean a service person who performs repair or inspection with specialized knowledge or special tools. Absent.

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

  A part of the cool air generated in the cooler 204 is sent into the freezer compartment 206 from the cool air outlet 216a provided in the partition member 216 by the blower 215, and after cooling the freezer compartment 206, the cool air provided in the partition member 216 is cooled. It returns to the lower part of the cooler 204 in the cooling chamber 205 through the suction port 216b and repeats circulation again.

  On the other hand, the remaining cool air generated in the cooler 204 is sent to the damper device 212 by the blower 215. The damper device 212 sends the cool air to the cooling duct cooling air duct 213 while controlling the opening degree of the ventilation path based on the detected value of the internal temperature sensor (not shown).

  The cold air sent to the cooling duct cooling air duct 213 passes through the refrigerating room cold air passage inlet 221 provided at the back of the heat insulating partition wall 202 and the refrigerating room cold air passage 222 provided at the back of the refrigerating room 207. The inside of the refrigerator compartment 207 is cooled to a predetermined temperature by being discharged from the refrigerator compartment cold air outlet 224 provided in the refrigerator compartment panel 223 constituting the back cover of the refrigerator compartment.

  The cold air that has been cooled to a predetermined temperature in the refrigerator compartment 207 is communicated from the refrigerator inlets 225 and 226 provided at the back or bottom of the refrigerator compartment 207 to the side of the cooler 204 in the refrigerator compartment 205. After being sent to the duct 214 and flowing into the vegetable compartment 208 and cooled to a predetermined temperature, it is returned to the lower part of the cooler 204 through a cold air return port (not shown), and heat is again exchanged in the cooler 204. To be cooled.

  Further, since the user himself removes the partition member 216 and is configured to be able to attach and detach the communication duct 214, the communication duct 214 is connected to the communication duct 214 in the refrigerator compartment 207 from the refrigerator compartment cold air inlets 225 and 226. Liquid or foreign matter such as stored food or beverage is mixed in, or dirt is attached through the inside of the refrigerator compartment 207 due to the circulation of air containing odors and dirt outside the warehouse or by opening and closing the door, Even if the user becomes concerned about hygiene, the user can easily remove and install the communication duct 214 by hand without using a tool. The inside of the communication duct 214 can be maintained and the hygienic condition inside the communication duct 214 can be maintained, and the user needs to clean and wash the inside of the communication duct 214 by himself / herself to satisfy the need for satisfaction. Kill.

  Usually, the communication duct 214, which is the air passage part through which the air in the refrigerator compartment 207 first passes, is more prone to bacterial growth and contamination than the other duct portions, and further, the refrigerator compartment 207 includes the refrigerator body 200. In recent mainstream layouts arranged at the upper part of the wall, the arrangement position of the interior opening of the communication duct 214 is generally provided in the lower part of the refrigerator compartment 207 in order to increase the convection cooling efficiency in the room, In addition, since the communication duct 214 is arranged toward the lower part in the direction of gravity, foreign substances such as food juice and dirt flow down from the opening in the cabinet to the inside of the communication duct 214, and liquid and foreign substances enter the communication duct 214. As a result, the generated bacteria may circulate in the refrigerator, and the bacteria may adhere to / growing on the food in the refrigerator to deteriorate the food.

  However, according to the present embodiment, the attachment / detachment means 117 that allows the communication duct 214 to be attached / detached is provided, and the communication duct 214 can be attached / detached to / from the refrigerator main body 200 without using a tool only by the attachment / detachment means 117. As a result, the user himself can clean and wash the inside of the communication duct 214 and improve the cleanability of the inside of the communication duct 214, so that the growth of bacteria such as food in the refrigerator can be suppressed.

  In addition, the vegetable room 208, which is often set to a higher temperature than the refrigerator room 207, can suppress the growth of odors and fungi, and in particular, the state of preservation of the vegetables can be kept good.

  As shown in FIG. 17, the communication duct 214 is configured to be thermally insulated in a cylindrical shape by the heat insulating member 219 and a part of the inner box 209, and the user himself / herself attaches and detaches the heat insulating member 219 to connect the communication duct 214. 214 can be attached and detached, and a general user himself can easily remove and attach the communication duct 214.

  If the heat insulating member 219 has such a substantially U-shaped cross section, when the communication duct 214 is removed, the inside of the duct can be exposed and can be easily checked, and cleaning and washing by the user is easier. There is an advantage that can be surely done.

  In addition, the communication duct 214 is not provided with an electrical component such as a heater, and the communication duct 214 can be detached and attached independently, so that the insertion / removal of the connector and the wiring work associated with the attachment / detachment of the communication duct 214 can be performed. In view of product safety, general users themselves can remove and install the communication duct 214 in contrast to the fact that the communication duct 214 could not be attached or detached.

  The communication duct 214 is provided with a heater 221 only on the back side of the projection surface of the communication duct 214 of the inner box 209, and the communication duct 214 itself is not provided with a heater, so that condensation or frost / icing in the communication duct 214 occurs. Occurrence can be prevented.

  Note that the attaching / detaching means 117 that enables the communication duct 214 to be attached / detached by hand without using a tool is the same as that described in the above-described embodiment, and the description thereof is omitted.

  The communication duct 214 uses the push rivet 127 used as the attaching / detaching means 117 as the attaching / detaching means 117 embedded in the inner box 209 while manually applying a pressing force in the rotational direction via an attachment hole (described later). By being screwed into the inner box 209, it is attached to the inner box 209 with a compressive force applied, and the communication duct 214 can be detached from the inner box 209 by manually rotating the push rivet 127 in the direction opposite to the attaching direction. As a result, a compressive force is constantly applied to the communication duct 214, so that the communication duct 214 and the inner box 209 can be reliably sealed, and the communication duct 214 having a highly airtight cooling passage can be provided. It becomes possible.

  Further, the communication duct 214 and the inner box 209 can be easily detached and attached by hand.

  Further, since the inside of the communication duct 214 is open, the cleaning property inside the communication duct 214 is improved.

  Further, by providing cam surfaces 134 and 135 as inclined surfaces on the outer periphery of the fitting portion of the push rivet 127 and the grommet 128, the communication duct is not fixed when the push rivet 127 is pushed in even when the attachment is rotated. The pressing force (compression force) of 214 to the inner box 209 can be applied, and the workability can be improved.

  Further, the contact surfaces 136 and 137 are provided so that the rotation angle of the push rivet 127 stops at 90 degrees, and the convex shapes 138 and 139 for preventing reverse rotation are further provided, so that the appearance of the knob portion 129 serving as a design surface is constant. It can be kept in high quality.

  In addition, when the communication duct 214 and the inner box 209 are tightly fixed using the attaching / detaching means 117 as described above, an operation side component corresponding to the push rivet 127 is specifically positioned and fitted to the attaching / detaching means 117. It is necessary to process the mounting hole 227 to be inserted, but if it is directly formed on the heat insulating member 219 made of foamed polystyrene, the fixing strength is weak, and it will endure repeated use and may be permanently deformed or damaged. However, in practice, a cylindrical resin is insert-molded into the mounting hole 227, or a resin-molded holding member is partially integrated only in the vicinity of the mounting hole portion of the communication duct 214. It is also effective to use a means for processing the mounting hole 227 by processing it or by covering the entire outline of the communication duct 214 with a resin cover integrally processed with the mounting hole. Is a basis.

  As described above, an example of the attaching / detaching means 117 that can be attached / detached without using a tool is shown above. However, the present invention is not limited to this example, and various kinds of attaching / detaching means including commercially available ones can be used. Can do.

  Note that the second partition member 217 in which functional parts such as the cooler 204, the blower 215, the defrost heater 218, or in some cases, the damper device 212 and the like and the functional parts such as the refrigeration cycle parts are housed, Unlike the communication duct 214 that is not equipped with a component that directly relates to reliability, the user does not use a tool to attach and detach without using a tool. For example, a configuration that cannot be attached or detached without using a tool such as a screw. In addition, a configuration that cannot be easily attached / detached without the use of a tool, and that can be attached / detached only when necessary for repairs or replacement of parts by service technicians, etc. It is said. For example, in the present embodiment, as shown in FIG. 16, mounting holes 228 are provided at appropriate locations on the left and right sides of the second partition member 217, and receiving portions (fixed to the back surface of the inner box 209 via the mounting holes 228 ( A screw or the like is securely fixed to a tool (not shown) with a tool.

  In addition, a rib 217b formed in a slit shape with an interval of a size that does not allow a finger to enter, for example, is provided on the attachment portion of the blower 215 of the second partition member so as to cover the front opening 217a. When the user removes the partition member 216 without stopping the operation of the refrigerator, the user can be prevented from accidentally touching the blower 215 and injured, and safety can be maintained. In addition, although it assumed that it was formed in a slit shape here, it can be formed in any shape such as a lattice shape in balance with the blowing resistance.

  On the other hand, with respect to the attachment / detachment of the partition member 216 that integrally covers the second partition member 217 and the communication duct 214 from the front surface, as with the attachment / detachment of the communication duct 214, the attachment / detachment means is provided via the attachment holes 229 provided at appropriate positions on the outer periphery. 117 is configured so that the user can easily attach and detach the inner box 209 by hand without using a tool.

  Therefore, the configuration of the cooling chamber 205 is roughly divided into three component blocks divided into a partition member 216, a second partition member 217, and a communication duct 214. Of these, the partition member 216 and the communication duct 214 are composed of When the user wants to clean or wash the communication duct 214, the user first operates the attaching / detaching means 117 on the partition member 216 on the back surface of the freezer compartment 206. Then, the communication duct 214 can be removed by operating the attaching / detaching means 117. After the treatment, the communication duct 214 is attached by operating the attaching / detaching means 117 in the reverse procedure, and then the partition member 216 is attached by operating the attaching / detaching means 117, so that the cooling chamber 205 is returned to the normal configuration again. be able to.

  As described above, in the refrigerator having a layout in which the refrigerator compartment 207 is arranged above the mainstream freezer compartment 206 in recent years, the arrangement position of the opening on the refrigerator compartment 207 side of the communication duct 214 (that is, the refrigerator compartment cold air inlet 226) is In view of the efficiency of the indoor convection cooling, the lower part of the refrigerator compartment is often used. Specifically, an indoor opening is provided on the lower surface (bottom face) of the refrigerator compartment or the lower rear part of the refrigerator compartment. Many.

  In this case, tableware containing liquid soup, liquid beverage bottles, seasonings, etc. are often placed below the user's own shoulders in consideration of the burden on the arm when taking in and out, and flows from the tableware, beverage bottles, etc. There may be a case in which foreign matter, food juice, beverages, and the like flow into the communication duct 214 from the opening in the cabinet (refrigeration room cold air inlet 226). In addition, the storage volume is large, miscellaneous foods are stored, and the air containing various miscellaneous and odorous components is contained in the cold storage room 205 with the opportunity to enter the outside air by opening and closing the door and the large amount of the refrigerator compartment 205. Since these airs are first circulated through the communication duct 214, there is a concern that dirt or bacteria may adhere to the communication duct 214.

  According to the present embodiment, the user himself / herself can also attach / detach the communication duct 214 to / from the refrigerator main body 200 by hand without using a tool only by the attaching / detaching means 117 according to the present embodiment. Since the inside of the communication duct 214 can be cleaned and washed and the inside of the communication duct 214 can be kept hygienic, it is possible to provide a more hygienic refrigerator by suppressing the growth of bacteria such as food in the refrigerator.

  As for the arrangement of the opening in the refrigerator (refrigeration room cold air inlet 226), it is often provided in the lower part of the refrigerator room 207 as described above. For example, in addition to the lower part of the refrigerator room 207, food and the like are arranged. In some cases, an in-compartment opening is provided in the vicinity of the back end of the shelf for storage (not limited to the lowest shelf, but may be provided in a distributed manner on each of the plurality of shelves). In this case, the same applies to a case in which foreign matter, food juice, beverages, or the like flowing from tableware, beverage bottles, etc. flow through the shelf into the communication duct 214 from the opening in the refrigerator (cold room cold air inlet 226). It is possible to exhibit the effects of the above.

  In the example of this embodiment, the upper stage is a refrigerator room, the lower stage is a refrigerator room, the middle stage is a freezer room, and the lower stage is a vegetable room with respect to a refrigerator having a layout in which the upper stage is a refrigerator room and the lower stage is a freezer room. The point is that the refrigerator has a layout arrangement. Specifically, a detachable return duct 113 arranged behind the freezer compartment of the refrigerator according to the first embodiment is arranged behind the freezer compartment in the refrigerator of the present embodiment. It is replaced with a communication duct 214 that allows the removable refrigeration room to communicate with the vegetable room.

  That is, the relationship between the return duct 113 and the partition member 114 in the first embodiment is substantially the same as the relationship between the communication duct 214 and the partition member 216 in the present embodiment.

  Therefore, although the detailed description of the embodiment is omitted, the relational configuration between the return duct and the partition member shown in each of the embodiments 2 to 5 is the same as that of the communication duct and the partition member of the present embodiment. It can be diverted by replacing it with the related configuration.

  Further, in each of the above embodiments, as an arrangement in which the juice or foreign matter is likely to be mixed in the return duct or the communication duct, the cold air suction side opening of the return duct or the communication duct is stored in the layout arrangement at the upper part. The example of a room, especially a refrigerated room was shown, but the adherence of germs in the return duct and communication duct is also due to the circulation of air containing dirt and odor components inside and outside the chamber in addition to juice and foreign matter. For such objects, the arrangement of the opening on the suction side of the cold air of the return duct or the communication duct is not necessarily limited to being a storage room above the duct or a cold room. Even in other layout arrangements and other storage rooms, there are certain practical effects.

(Embodiment 7)
FIG. 22 is a front view in which the refrigerator door in the seventh embodiment of the present invention is omitted, FIG. 23 is a side sectional view in which the refrigerator door in the same embodiment is omitted, and FIG. 24 is in the same embodiment. It is a top view which shows the structure of the cooling chamber of a refrigerator.

  22, 23, and 24, the refrigerator main body 200 is partitioned into a plurality of storage rooms in a heat insulating box body 201 by heat insulating partition walls 202 and 203 having heat insulating performance. The middle chamber sandwiched between the upper heat insulating partition wall 202 and the lower heat insulating partition wall 203 is configured as a freezing chamber 206 provided with a cooling chamber 205 that houses a cooler 204 at its back. A refrigerator compartment 207 is disposed above the chamber 206, and a vegetable compartment 208 is disposed below the freezer compartment 206. That is, the refrigerator compartment 207 is disposed above the refrigerator main body, and the refrigerator compartment 206 and the freezer compartment are disposed below the refrigerator compartment 207. Below 206, it consists of the vegetable compartment 208 and the heat insulation box 201 which provided the three storage rooms.

  The front opening of each storage room is provided with a heat insulating door filled with foam heat insulating material such as urethane, for example, and the refrigerating room 207 has a rotary door (not shown), a freezing room 206, a vegetable room 208. Each has a drawer type door (not shown).

  The heat insulating box 201 has a heat insulating wall formed by injecting a foam heat insulating material 211 into a space formed by an inner box 209 formed by vacuum molding a resin body such as ABS and an outer box 210 using a metal material such as a pre-coated steel plate. I have. For example, rigid urethane foam, phenol foam, styrene foam, or the like is used as the foam heat insulating material 211. Use of hydrocarbon-based cyclopentane as the foaming material is better from the viewpoint of preventing global warming.

  Next, each storage chamber of the heat insulation box 201 will be described.

  The refrigerator compartment 207 is normally set at 1 to 5 ° C. with the temperature not frozen for refrigerated storage as the lower limit. A plurality of shelves (not shown) are provided for organizing and storing food and the like.

  The freezer compartment 206 is normally set at −22 to −18 ° C. for frozen storage, but may be set at a low temperature of −30 ° C. or −25 ° C., for example, to improve the frozen storage state. . The refrigerator stores a freezer container (not shown) that can organize and store food.

  The vegetable room 208 is generally set to a temperature of 2 ° C. to 7 ° C., which is equal to or slightly higher than that of the refrigerated room 207. The lower the temperature, the longer the freshness of the leaf vegetables can be maintained. The cabinet houses a vegetable compartment container (not shown) that can organize and store food such as vegetables.

  Next, the flow of cold air in the heat insulating box 201 will be described.

  The cold air generated in the cooling room 205 is sent to the refrigerating room 207 through the damper device 212 and the cooling room cooling air duct 213, and the cold air is sent from the refrigerating room 207 to the vegetable room 208 to the vegetable room 208. These rooms are configured to be cooled to a predetermined temperature by forcibly blowing air by a blower 215 through a communication duct 314.

  Here, the communication duct 314 is an air path that connects the opening provided in the lower part of the back of the refrigerator compartment 207 and the opening provided in the upper part of the back of the vegetable compartment in the vertical direction.

  A partition member 316 made of a hard resin material that constitutes the back cover of the freezer compartment 206 is provided between the cooling chamber 205 and the freezer compartment 206. The partition member 316 is provided with a cold air outlet 316 a into the freezer compartment 206 and a cold air inlet 316 b from the freezer compartment 206.

  A heat insulating member 300 that covers the second partition member 317 made of expanded polystyrene resin or the like covered with the partition member 316 is disposed in the cooling chamber 205, and communicates using a part of the heat insulating member 300 in the left-right direction. A duct 314 is formed. A second partition member 317 made of a soft foamed resin such as foamed polypropylene or polypropylene resin is disposed on the opposite side of the communication duct 314 formed using a part of the heat insulating member 300 in the left-right direction. In the partition member 317, a cooler 204 that cools the interior air by heat exchange and the cooler 204 is disposed above the cooler 204, and the cool air is sent to the freezer compartment 206, the refrigerator compartment 207, and the vegetable compartment 208. A blower 215 for defrosting and a defrosting heater 218 for defrosting frost adhering to the cooler 204 during cooling are accommodated below the cooler 204. The damper device 212 may be disposed in the heat insulating partition wall 202 or the refrigerator compartment 207, but may be accommodated integrally in the second partition member 317.

  That is, in FIG. 24, a single partition member 316 made of a hard resin material that constitutes the back cover of the freezer compartment 206 covers the second partition member 317 and the communication duct 314 at the same time. The second partition member 317 is disposed on the lateral side of the second partition member 317 and is configured integrally with the partition member 316. That is, in the present embodiment, it is composed of an integrated partition member 316, a communication duct 314, a second partition member 317, and two component blocks.

  The integrally configured means not only the integral molding process in terms of material, but also a material in which different materials are coupled by a coupling means such as an adhesive or an interlocking structure.

  Next, an integral configuration will be described.

  The partition member 316 includes a cover portion 370 that constitutes a back cover of the freezer compartment 206, and a protruding portion 371 that protrudes from the vicinity of both ends of the cover portion 370 at a substantially right angle.

  A claw portion 352 provided on the heat insulating member 300 side (inside) is provided near the tip of the protruding portion 371 of the partition member 316, and the heat insulating member 300 is provided with a concave portion 362 to which the claw portion 352 is engaged. ing.

  Therefore, the communication duct 314 is configured to be integrated with the partition member 316 by engaging the claw portion 352 with the recess 362.

  Since the partition member 316 and the communication duct 314 formed by using a part of the heat insulating member 300 in the left-right direction have such an integrated configuration, the user can attach and detach the partition member 316 by attaching / detaching means 320 (described later). ) Can be removed from the second partition member 317 by hand operation without using a tool, and the communication duct 314 can also be removed at the same time, and the communication duct 314 formed using a part of the heat insulating member 300 in the left-right direction. When the cross-sectional shape is substantially U-shaped, in particular, the inside of the communication duct 314 is exposed, and the communication duct 314 can be cleaned more easily.

  Therefore, it is not necessary to provide an attaching / detaching means dedicated to fixing the communication duct 314, the configuration can be simplified, the cost can be reduced, and the user's trouble of attaching / detaching can be reduced.

  Next, the attachment / detachment means 320 (referred to as third attachment / detachment means for the sake of explanation) will be described.

  The partition member 316 is attached to the second partition member 317 via the heat insulating member 300 by the attaching / detaching means 320.

  Two attachment / detachment means 320 are provided at substantially equal intervals from the approximate center in the width direction of the second partition member 317 (left-right direction in FIG. 24) where the second partition member 317 is disposed. Yes.

  The partition member 316 is attached to the second partition member 317 via the heat insulating member 300 by the attaching / detaching means 320, thereby narrowing a gap formed between the second partition member 317 and the heat insulating member 300. It is possible to reduce the short circuit of the cold air cooled by the cooler 204 into the gap formed by the second partition member 317 and the heat insulating member 300. In addition, the sealing performance between the communication duct 314 and the inner box 209 is improved, the amount of cool air flowing from the communication duct 314 to the vegetable compartment 208 can be secured, and second due to a seal failure between the communication duct 314 and the inner box 209. The frost formation on the partition member can be reduced.

  That is, it is provided with attachment / detachment means 320 that allows the communication duct 314 formed using a part of the heat insulating member 300 in the left-right direction to be attached / detached without using a tool, and is attached to the refrigerator main body 200 by hand without using a tool by the attachment / detachment means 320. On the other hand, the communication duct 314 formed using a part of the heat insulating member 300 in the left-right direction is detachable.

  The communication duct 314 is configured by a part of the heat insulating member 300 that covers the second partition member 317, so that the heat insulating member that covers the second partition member, the heat insulating member that forms the communication duct 314, and Need to be prepared as separate parts, that is, the heat insulating member 300 can share the heat insulating member that covers the second partition member and the heat insulating member that forms the communication duct 314, thereby reducing the number of parts. it can.

  As shown in FIG. 24, the communication duct 314 formed using a part of the heat insulating member 300 in the left-right direction has a substantially U-shaped cross section, and is cylindrical with a part of the inner box 209. The user can attach and detach the communication duct 314 by attaching and detaching the partition member 316. In addition, on the contact surface of the communication duct 314 having a substantially U-shaped cross section with the inner box 209, a sealing member 220 such as a soft foam foam is connected to the communication duct if the sealing performance of the communication duct 314 is to be ensured. Affixed to the rear end face side of 314 and sealed with the inner box 209.

  The communication duct 314 is not directly provided with electrical parts such as a heater, and the heater 221 for preventing condensation and frost / icing in the communication duct 314 is provided on the rear side of the projection surface of the communication duct 314 of the inner box 209. Is provided.

  In addition, here, the user means a general consumer who uses the refrigerator, and does not mean a service person who performs repair or inspection with specialized knowledge or special tools. Absent.

  Here, the second partition member 317 is a screw 340 and is attached to the refrigerator main body 200 via the inner box 209. The second partition member 317 is not a specification that can be attached and detached by the user himself / herself. However, only when it is necessary for repair or replacement of parts, tools and screws, for example, screws, or a combination that cannot be easily attached or detached by ordinary users, can be attached and removed, so the user can easily connect the communication duct. Even if it is configured to be detachable, the user cannot easily remove the second partition member 317, ensuring the safety of the user, and electrical components and refrigeration cycle components housed in the second partition member 317 It is possible to eliminate the influence on the reliability of the product function due to touching the functional parts.

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

  A part of the cool air generated in the cooler 204 is sent into the freezer compartment 206 from the cool air outlet 316 a provided in the partition member 316 by the blower 215, cools the freezer compartment 206, and then the cool air provided in the partition member 316. It returns to the lower part of the cooler 204 in the cooling chamber 205 through the suction port 316b and repeats circulation again.

  On the other hand, the remaining cool air generated in the cooler 204 is sent to the damper device 212 by the blower 215. The damper device 212 sends the cool air to the cooling duct cooling air duct 213 while controlling the opening degree of the ventilation path based on the detected value of the internal temperature sensor (not shown).

  The cold air sent to the cooling duct cooling air duct 213 passes through the refrigerating room cold air passage inlet 221 provided at the back of the heat insulating partition wall 202 and the refrigerating room cold air passage 222 provided at the back of the refrigerating room 207. The inside of the refrigerator compartment 207 is cooled to a predetermined temperature by being discharged from the refrigerator compartment cold air outlet 224 provided in the refrigerator compartment panel 223 constituting the back cover of the refrigerator compartment.

  The cold air that has been cooled to a predetermined temperature in the refrigerator compartment 207 is communicated from the refrigerator inlets 225 and 226 provided at the back or bottom of the refrigerator compartment 207 to the side of the cooler 204 in the refrigerator compartment 205. After being sent to the duct 314 and flowing into the vegetable compartment 208 and cooled to a predetermined temperature, it is returned to the lower part of the cooler 204 through a cold air return port (not shown), and heat is again exchanged in the cooler 204. To be cooled.

  In addition, since the communication duct 314 can be detached by removing the partition member 316, the user himself / herself can connect the communication duct 314 to the communication duct 314 from the refrigerating room cold air inlets 225 and 226. Liquid or foreign matter such as food or beverages stored in the container is mixed, or dirt is attached through the inside of the refrigerator compartment 207 due to the circulation of air containing odors and dirt outside the cabinet or by opening and closing the door. Even if the user comes to care about hygiene, the user can easily remove and install the communication duct 314 by hand without using a tool, and the user himself can connect the communication duct 314. The inside can be cleaned and washed, the hygienic condition inside the communication duct 314 can be maintained, and the user needs to clean and wash the inside of the communication duct 314 himself to satisfy the sense of security. Can.

  Usually, the communication duct 314, which is the air passage portion through which the air in the refrigerator compartment 207 first passes, is easier for bacteria to propagate and become dirty than the other duct portions, and further, the refrigerator compartment 207 has the refrigerator body 200. In recent mainstream layouts arranged at the upper part of the wall, the arrangement position of the interior opening of the communication duct 314 is generally provided in the lower part of the refrigerator compartment 207 in order to increase the convection cooling efficiency in the room, In addition, since the communication duct 314 is arranged and arranged toward the lower part in the direction of gravity, foreign matters such as food juice and dirt flow down from the opening in the cabinet to the inside of the communication duct 314, and liquid and foreign matter are mixed in the communication duct 314. As a result, the generated bacteria may circulate in the refrigerator, and the bacteria may adhere to / growing on the food in the refrigerator to deteriorate the food.

  However, according to the present embodiment, the attachment / detachment means 320 that can attach / detach the communication duct 314 is provided, and the attachment / detachment means 320 can be attached / detached to / from the refrigerator main body 200 without using a tool. Thus, the user himself can clean and wash the inside of the communication duct 314 and improve the cleanability of the inside of the communication duct 314, so that the propagation of bacteria such as food in the refrigerator can be suppressed.

  In addition, the vegetable room 208, which is often set to a higher temperature than the refrigerator room 207, can suppress the growth of odors and fungi, and in particular, the state of preservation of the vegetables can be kept good.

  As shown in FIG. 24, the communication duct 314 is configured to be thermally insulated in a cylindrical shape by the heat insulating member 300 and a part of the inner box 209, and the user himself / herself attaches and detaches the partition member 316, thereby connecting the communication duct 314. 314 can be attached and detached, and a general user can easily remove and attach the communication duct 314 more easily.

  And if a part of the left-right direction of the heat insulation member 300 is such a substantially U-shaped cross section, when the partition member 316 is removed, the inside of the duct is exposed and can be confirmed well. There is an advantage that cleaning and cleaning can be performed more easily and reliably.

  Further, since the communication duct 314 is not provided with an electrical component such as a heater, and the communication duct 314 can be detached and attached independently, connector insertion / removal and wiring routing work associated with the attachment / detachment of the communication duct 314 can be performed. In view of product safety, general users themselves can remove and install the communication duct 314 while the communication duct 314 cannot be removed.

  The communication duct 314 is provided with a heater 221 only on the rear side of the projection surface of the communication duct 314 of the inner box 209. The communication duct 314 itself is not provided with a heater, and the condensation in the communication duct 314 and frost / freezing are formed. Occurrence can be prevented.

  Note that the attaching / detaching means 320 that enables these partition members 316 to be attached / detached by hand without using a tool is the same as that described in the above-described embodiment, and the description thereof is omitted.

  The partition member 316 serves as an attachment / detachment unit 320 embedded in the second partition member 317 while applying a push force in the rotational direction by hand through an attachment hole (described later) through the push rivet 127 used as the attachment / detachment unit 320. By screwing into the grommet 128 to be used, the second partition member 317 is attached to the second partition member 317 in a state in which a compressive force is applied, and the push rivet 127 is manually rotated in the direction opposite to the direction of attachment to rotate the second partition member 316. By adopting a configuration that can be removed from the 317, a compressive force is always applied to the communication duct 314, so that the communication duct 314 and the inner box 209 can be reliably sealed, and a highly airtight cooling passage can be provided. It becomes possible to provide the communication duct 314 which has.

  Further, the partition member 316 and the second partition member 317 can be easily detached and attached by hand.

  Further, since the inside of the communication duct 314 is open, the cleaning property inside the communication duct 314 is improved.

  Further, by providing cam surfaces 134 and 135 as inclined surfaces on the outer periphery of the fitting portion of the push rivet 127 and the grommet 128, the partition member is not fixed when the push rivet 127 is pushed in even when the attachment is rotated. It is possible to apply a pressing force (compression force) to the second partition member 317 of 316 and to improve the workability.

  Further, the contact surfaces 136 and 137 are provided so that the rotation angle of the push rivet 127 stops at 90 degrees, and the convex shapes 138 and 139 for preventing reverse rotation are further provided, so that the appearance of the knob portion 129 serving as a design surface is constant. It can be kept in high quality.

  As described above, an example of the third attaching / detaching means 320 that can be attached / detached without using a tool is shown above. However, the third attaching / detaching means 320 is not limited to this example, and may be replaced with various kinds of attaching / detaching means including commercially available ones. Can be used.

  For example, the partition member 316 includes a claw portion (not shown) provided on the second partition member 317 side, and the second partition member 317 has a recess (not shown) with which the claw portion engages. Z).

  Here, the claw portion provided on the partition member 316 and utilizing the elasticity of the resin engages with the concave portion provided on the second partition member 317 and utilizing the elasticity of the resin, thereby increasing the number of parts with a simple structure. The return duct or the communication duct can be made detachable without being made.

  Here, it is assumed that the partition member 316 is provided with a claw portion and the second partition member 317 is provided with a recess portion, but the partition member 316 is provided with a recess portion and the second partition member 317 is provided with a claw portion. A part may be provided.

  Note that the second partition member 317 in which functional parts such as the cooler 204, the blower 215, the defrost heater 218, or in some cases, the electric device such as the damper device 212 and the refrigeration cycle parts are accommodated is the safety and Unlike the communication duct 314 in which no part directly related to reliability is mounted, the user himself / herself is not configured to be attached / detached without using a tool, for example, a configuration that cannot be attached / detached without using a tool such as a screw stopper. In addition, a configuration that cannot be easily attached / detached without the use of a tool, and that can be attached / detached only when necessary for repairs or replacement of parts by service technicians, etc. It is said.

  In addition, a rib 217b formed in a slit shape with an interval of a size that does not allow a finger to enter, for example, is provided on the attachment portion of the blower 215 of the second partition member 317 so as to cover the front opening 217a. In addition, when the user removes the partition member 316 without stopping the operation of the refrigerator, the user can be prevented from accidentally touching the blower 215 and injured, and safety can be maintained. In addition, although it assumed that it was formed in a slit shape here, it can be formed in any shape such as a lattice shape in balance with the blowing resistance.

  Therefore, the configuration of the cooling chamber 205 is roughly divided into an integrated partition member 316 and a communication duct 314, a second partition member 317, and two component blocks. Of these, the partition member 316 and the communication duct are included. When the user wants to clean or wash the communication duct 314, the partition wall on the back surface of the freezer compartment 206 can be attached to and detached from the heat insulating material 300 formed with the user's hand 314. The member 316 can be removed by operating the attaching / detaching means 320. After the treatment, if the partition member 316 is attached by operating the attaching / detaching means 320 in the reverse procedure, the cooling chamber 205 can be returned to the normal configuration again.

  As described above, in the refrigerator having a layout in which the refrigerator compartment 207 is arranged above the mainstream freezer compartment 206 in recent years, the arrangement position of the opening on the refrigerator compartment 207 side of the communication duct 314 (that is, the refrigerator compartment cold air inlet 226) is In view of the efficiency of the indoor convection cooling, the lower part of the refrigerator compartment is often used. Specifically, an indoor opening is provided on the lower surface (bottom face) of the refrigerator compartment or the lower rear part of the refrigerator compartment. Many.

  In this case, tableware containing liquid soup, liquid beverage bottles, seasonings, etc. are often placed below the user's own shoulders in consideration of the burden on the arm when taking in and out, and flows from the tableware, beverage bottles, etc. There may be a case in which foreign matter, food juice, beverages, and the like that flow out flow into the communication duct 314 from the interior opening (refrigeration room cold air inlet 226). In addition, the storage volume is large, miscellaneous foods are stored, and the air containing various miscellaneous and odorous components is contained in the cold storage room 205 with the opportunity to enter the outside air by opening and closing the door and the large amount of the refrigerator compartment 205. Since these airs are first circulated through the communication duct 314, there is a concern that dirt or bacteria may adhere to the communication duct 314.

  According to the present embodiment, it is possible to attach / detach the heat insulating material part 300 in which the communication duct 314 is formed to the refrigerator main body 200 by hand without using a tool by the attaching / detaching means 320 even for such a problem. Thus, the user himself can clean and wash the inside of the communication duct 314 and keep the inside of the communication duct 314 in a sanitary manner. Therefore, the hygienic refrigerator which suppresses the propagation of bacteria such as food in the refrigerator. Can be provided.

  As for the arrangement of the opening in the refrigerator (refrigeration room cold air inlet 226), it is often provided in the lower part of the refrigerator room 207 as described above. For example, in addition to the lower part of the refrigerator room 207, food and the like are arranged. In some cases, an in-compartment opening is provided in the vicinity of the back end of the shelf for storage (not limited to the lowest shelf, but may be provided in a distributed manner on each of the plurality of shelves). In this case, the same applies to a case where foreign matter, food juice, beverages, etc. flowing from tableware, beverage bottles, etc. flow into the communication duct 314 from the interior opening (refrigeration room cold air inlet 226) through this shelf. It is possible to exhibit the effects of the above.

  In the example of this embodiment, the upper stage is a refrigerator room, the lower stage is a refrigerator room, the middle stage is a freezer room, and the lower stage is a vegetable room with respect to a refrigerator having a layout in which the upper stage is a refrigerator room and the lower stage is a freezer room. The point is that the refrigerator has a layout arrangement. Specifically, a detachable return duct 113 arranged behind the freezer compartment of the refrigerator according to the first embodiment is arranged behind the freezer compartment in the refrigerator of the present embodiment. It is replaced with a communication duct 314 that allows the removable refrigerator compartment and the vegetable compartment to communicate with each other.

  That is, the relationship between the return duct 113 and the partition member 114 in the first embodiment is almost the same as the relationship between the communication duct 314 and the partition member 316 in the present embodiment.

  Therefore, although the detailed description of the embodiment is omitted, the relational configuration between the return duct and the partition member shown in each of the embodiments 2 to 5 is the same as that of the communication duct and the partition member of the present embodiment. It can be diverted by replacing it with the related configuration.

  Further, in each of the above embodiments, as an arrangement in which the juice or foreign matter is likely to be mixed in the return duct or the communication duct, the cold air suction side opening of the return duct or the communication duct is stored in the layout arrangement at the upper part. The example of a room, especially a refrigerated room was shown, but the adherence of germs in the return duct and communication duct is also due to the circulation of air containing dirt and odor components inside and outside the chamber in addition to juice and foreign matter. For such objects, the arrangement of the opening on the suction side of the cold air of the return duct or the communication duct is not necessarily limited to being a storage room above the duct or a cold room. Even in other layout arrangements and other storage rooms, there are certain practical effects.

  In this embodiment, two attachment / detachment means 320 are provided. However, at least one or more attachment means 320 may be provided, and for example, three may be provided as necessary.

  In this embodiment, the communication duct 314 is configured to be integrated with the partition member 316 by engaging the claw portion 352 with the recess 362. However, the communication duct 314 is partitioned using a tape or an adhesive. It is good also as a structure comprised integrally with the member 316, and after making it the structure which integrates the communicating duct 314 with the partition member 316 by engaging the nail | claw part 352 with the recessed part 362, it uses a tape or an adhesive agent. A stronger integrated structure may be used.

(Embodiment 8)
FIG. 25 is a plan view showing the configuration of the cooling chamber of the refrigerator in the eighth embodiment of the present invention.

  As for the attaching / detaching means for the partition member 316, in addition to the third attaching / detaching means as in the seventh embodiment, as shown in FIG. 25, the third attaching / detaching means and the partition member are attached to the inner box. And a fourth attaching / detaching means for attaching and detaching.

  Here, the points different from the seventh embodiment will be mainly described.

  Next, the attachment / detachment means 350 (referred to as a fourth attachment / detachment means for the sake of explanation) will be described.

  A claw portion 351 provided on the inner box 209 side (outer side) and the heat insulating member 300 side (inner side) is provided near the tip of the protruding portion 371 of the partition member 316, and the inner box 209 includes a claw portion 351. A recess 361 is provided to engage the inner box 209 side. Further, the heat insulating member 300 is provided with a recess 362 that engages the heat insulating member 300 side of the claw portion 351.

  Here, when the claw portion 351 first engages with the recess 362, the heat insulating member 300 and the cover portion 370 are fixed and integrated. Next, the claw portion 351 engages with the recess 361 so that the communication duct 314 formed using a part of the heat insulating member 300 in the left-right direction can be attached and detached. That is, the attaching / detaching means 350 is constituted by the claw portion 351 and the concave portion 361.

  Note that three claw portions 351 are provided at a distance from the left side and the right side of the partition member 316 in the height direction (depth direction in FIG. 25), that is, a total of six claw portions 351 are provided on the partition member 316.

  Note that there are three recesses 361 at positions where the claw portions 351 are engaged with the left side and the right side of the inner box 209 in the height direction (the depth direction in FIG. 25), that is, a total of the inner box. Six are provided.

  The attaching / detaching means 350 includes a claw portion 351 provided on the partition member 316 and a concave portion 361 provided on the inner box 209, so that a return duct or a communication duct can be provided with a simple structure and without increasing the number of parts. It can be made detachable.

  In the embodiment 7 described above, both ends of the partition member 316 may be warped toward the freezer compartment, but the partition member 316 is attached to the inner box 209 by the attaching / detaching means 350. Thus, both ends of the partition member 316 can be prevented from warping toward the freezer compartment, that is, both ends of the partition member 316 are pressed against the back of the freezer compartment, and the cold air flowing through the communication duct 314 is short-circuited to the freezer compartment 206. Circuits can be reduced.

  In the present embodiment, three attachment / detachment means 350 are provided on each of the left side and the right side of the partition member 316, that is, a total of six on the partition member 316, but at least one is provided on each of the left and right sides of the partition member 316. As long as necessary, for example, two on the left side and the right side, that is, a total of four on the partition member 316 may be provided, and the number of attaching / detaching means provided on the left side and the right side is not necessarily the same. It does not have to be.

  In addition, although the example of the 3rd attachment / detachment means 320 which can be attached / detached without using a tool was shown above, it is not limited to this example, and it replaces and uses various kinds of attachment / detachment means including what is marketed. be able to.

  As in the seventh embodiment, for example, the partition member 316 includes a claw portion (not shown) provided on the second partition member 317 side, and the second partition member 317 includes Is provided with a recess (not shown) with which the claw portion engages.

  Here, the claw portion provided on the partition member 316 and utilizing the elasticity of the resin engages with the concave portion provided on the second partition member 317 and utilizing the elasticity of the resin, thereby increasing the number of parts with a simple structure. The return duct or the communication duct can be made detachable without being made.

  Here, it is assumed that the partition member 316 is provided with a claw portion and the second partition member 317 is provided with a recess portion, but the partition member 316 is provided with a recess portion and the second partition member 317 is provided with a claw portion. A part may be provided.

  As described above, the refrigerator according to the present invention allows the user himself to easily attach and remove the refrigerator compartment return duct manually, so that the user himself can clean the inside of the refrigerator compartment return duct and return to the refrigerator compartment. As well as improving the cleanability of the inside of the duct and satisfying the need for users to wash themselves inside the refrigeration room return duct to satisfy their sense of security, not only refrigerators for home use, but also food in and out It can be applied to other refrigeration equipment such as large refrigerators for commercial use and freezers and showcases, which frequently have conditions such as contamination and propagation of germs.

The front view which abbreviate | omitted the door of the refrigerator in Embodiment 1 of this invention Sectional drawing of the side which abbreviate | omitted the door of the refrigerator in the embodiment The perspective view which shows the structure of the cooling chamber of the refrigerator in the embodiment The top view which shows the structure of the cooling chamber of the refrigerator in the embodiment The figure which shows the mounting state of the return duct in the embodiment The perspective view which shows an example of the operation side of the attachment / detachment means used for the refrigerator in the embodiment The perspective view which shows an example of the fixed side of the attachment or detachment means used for the refrigerator in the embodiment The perspective view of the connection state of the attachment / detachment means in the embodiment The top view which shows the structure of the cooling chamber of the refrigerator in Embodiment 2 of this invention The top view which shows the structure of the cooling chamber of the refrigerator in Embodiment 3 of this invention. The perspective view which shows the structure of the cooling chamber of the refrigerator in Embodiment 4 of this invention. The top view which shows the structure of the cooling chamber of the refrigerator in the embodiment The top view which shows the structure of the cooling chamber of the refrigerator in Embodiment 5 of this invention The front view which abbreviate | omitted the door of the refrigerator in Embodiment 6 of this invention Sectional drawing of the side which abbreviate | omitted the door of the refrigerator in the embodiment The perspective view which shows the structure of the cooling chamber of the refrigerator in the embodiment The top view which shows the structure of the cooling chamber of the refrigerator in the embodiment The figure which shows the mounting state of the communication duct in the embodiment The figure which shows the structure of the conventional refrigerator described in patent document 1 The figure which shows the structure of the conventional refrigerator described in patent document 2 The figure which shows the structure of the conventional refrigerator described in patent document 3 The front view which abbreviate | omitted the door of the refrigerator in Embodiment 7 of this invention Sectional drawing of the side which abbreviate | omitted the door of the refrigerator in the embodiment The top view which shows the structure of the cooling chamber of the refrigerator in the embodiment The top view which shows the structure of the cooling chamber of the refrigerator in Embodiment 8 of this invention.

Explanation of symbols

100, 200 Refrigerator body 101, 201 Heat insulation box 103, 204 Cooler 104, 205 Cooling room 105, 206 Freezer room 106, 207 Refrigerated room 208 Vegetable room 107, 209 Inner box 110, 215 Blower 113, 143, 146, 152 , 154 Return duct 214, 314 Communication duct 114, 145, 149, 150, 216, 316 Partition member 115, 217, 317 Second partition member 117, 320, 350 Detachment means 118, 142, 147, 155, 219, 300 Heat insulation member 121,221 Heater 351,352 Claw part 361,362 Recess

Claims (16)

  A plurality of storage chambers including a freezing chamber formed by a heat insulating box in the refrigerator body; and a cooling chamber partitioned by a partition member on a back surface of the freezing chamber, the storage chamber accommodated in the cooling chamber being A cooler for cooling and a return duct for returning cool air to the cooler from a storage room other than the freezer room provided with a cooling room on the back of the room are disposed in the cooling room, and the return duct is detachable. A refrigerator comprising attachment / detachment means, wherein the return duct can be attached / detached to / from the refrigerator body without using a tool only by the attachment / detachment means.   The refrigerator according to claim 1, wherein a refrigerator compartment is disposed at an upper part of the refrigerator body, the freezer compartment is disposed below the refrigerator compartment, and the return duct is a return duct for returning cold air from the refrigerator compartment to the cooler.   A refrigerator compartment is provided at the top of the refrigerator body, a freezer compartment is provided below the refrigerator compartment, a vegetable compartment is provided below the freezer compartment, and the return duct is a communication duct for supplying cold air from the refrigerator compartment to the vegetable compartment. The refrigerator according to claim 1.   The return duct or the communication duct is configured to be thermally insulated in a cylindrical shape by a heat insulating member, and the return duct or the communication duct can be attached / detached by attaching / detaching the heat insulating member. The refrigerator according to item.   The return duct or the communication duct is thermally insulated in a cylindrical shape by a heat insulating member and a part of the inner box of the heat insulating box, and the return duct or the communication duct is attached / detached by attaching / detaching the heat insulating member. The refrigerator according to any one of claims 1 to 3, which is made possible.   The refrigerator according to any one of claims 1 to 5, wherein an electric component is not provided in the return duct or the communication duct, and the tool can be attached to and detached from the refrigerator body without using a tool only by the attaching / detaching means.   The attachment / detachment means includes a first attachment / detachment means for attaching / detaching the return duct or the communication duct to / from the refrigerator body, and a second attachment / detachment means for attaching / detaching the partition member to / from the refrigerator body. The refrigerator according to any one of 1 to 6.   The said attaching / detaching means comprises only attaching / detaching means for attaching / detaching the partition member to / from the refrigerator main body, and presses and holds the return duct or the communication duct by attaching the partition member. Refrigerator.   The partition member and the return duct or the communication duct are integrally formed, and the return duct or the communication duct can be attached / detached only by attaching / detaching means for attaching / detaching the partition member to / from the refrigerator main body. The refrigerator as described in any one of 6.   The cooler is at least a front surface covered with a second partition member between the cooler and the partition member, and the second partition member is attached to and detached from the refrigerator body using a tool. Refrigerator.   The partition member is divided into a partition member that covers the return duct or the communication duct from the front surface and a partition member that covers the second partition member from the front surface, and the partition member that covers the return duct or the communication duct from the front surface is divided into the partition member. The refrigerator according to any one of claims 7 to 9, wherein the refrigerator can be attached to and detached from the refrigerator body without using a tool only by attaching and detaching means.   The refrigerator according to claim 10 or 11, wherein the second partition member is provided with a blower for sending cold air cooled by the cooler to the storage chamber, and a safety protection structure is provided so as to cover a front surface of the blower. .   The refrigerator according to claim 5, wherein the refrigerator return duct or the communication duct is provided with a heater on the back side of the duct projection surface of the inner box.   The cooler is at least a front surface covered with the partition member with the second partition member, and the return duct or the communication duct is configured by a part of a heat insulating member that covers the second partition member, The partition member and the return duct or the communication duct are configured integrally, and the return duct or the communication duct is configured by only third attachment / detachment means for attaching / detaching the partition member to / from the second partition member. The refrigerator according to any one of claims 1 to 6, wherein the refrigerator is detachable.   The cooler is at least a front surface covered with the partition member with the second partition member, and the return duct or the communication duct is configured by a part of a heat insulating member that covers the second partition member, The partition member and the return duct or the communication duct are configured integrally, a third attaching / detaching means for attaching / detaching the partition member to / from the second partition member, and the partition member to the inner box The refrigerator according to any one of claims 1 to 6, wherein the return duct or the communication duct is detachable by a fourth attaching / detaching means to be attached / detached.   The refrigerator according to claim 15, wherein the fourth attaching / detaching means includes a claw portion provided in the partition member and a concave portion provided in the inner box.