JP4357465B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator including a temperature switching chamber that can be switched to a desired room temperature by a user.

  In recent years, where the living environment has changed significantly, more and more families have different times for their families to eat. For this reason, in order to keep the heated food warm, a heat insulation box or a heat storage container is used. Thereby, the effort which cooks many times can be saved.

On the other hand, Patent Document 1 discloses a refrigerator provided with a temperature switching chamber in addition to a freezer compartment and a refrigerator compartment. This refrigerator includes a damper device that opens and closes a passage of cool air sent to the temperature switching chamber, and a heater that raises the temperature of the temperature switching chamber. Thereby, the room temperature of the temperature switching chamber can be switched to a desired low temperature range such as freezing, refrigeration, partial, chilled, etc. according to the user's application.
Japanese Patent Laid-Open No. 10-288440

  However, when a heat insulation box or a storage container is used to keep the heated food warm, there is a problem that it is difficult to secure an installation place and a problem that a user's economic burden is increased. In addition, there is a problem in that it requires a complicated operation of transferring the food and is not convenient.

  An object of the present invention is to provide a highly convenient refrigerator that reduces the burden on the user and makes it easy to secure a place.

In order to achieve the above object, the refrigerator of the present invention has a temperature switching chamber capable of switching the room temperature between a low temperature side for cooling and storing stored items and a high temperature side for keeping heated food by cooling with a cooler and heating with a heater. The refrigerator includes a door that opens and closes a front surface of the temperature switching chamber, and a slidable storage case that stores a stored item, and includes a protruding portion that protrudes on the back side of the door, and the door A contact portion is provided on the bottom surface of the storage case to contact the projecting portion when closing and push the storage case into the temperature switching chamber, and the contact portion comprises a step which lowers the rear portion of the bottom surface of the storage case. It is characterized by that.

According to this configuration, when the temperature switching chamber is switched to the low temperature side, cold air is introduced from the cooler, and becomes a low temperature chamber for refrigeration, partial, chilled, refrigeration, and the like. Thereby, a store thing can be stored refrigerated or frozen. When the temperature switching chamber is switched to the high temperature side, the heater is driven to become a high temperature high temperature chamber. Thereby, the heat insulation of the heat-cooked food can be performed temporarily, or the temperature can be cooked in winter. The temperature switching chamber is provided with a slidable storage case for storing stored items, and the stored items are taken in and out by opening the door and pulling the storage case forward. When the door is closed, the protruding portion on the back surface of the door comes into contact with the step provided on the bottom surface of the storage case, and the storage case is pushed into the temperature switching chamber.

The present invention, in the refrigerator structured as described above, the contact portion has a vertical surface, it is characterized by abutting on the projecting portion in said vertical face.

  Further, the present invention is characterized in that, in the refrigerator having the above-described configuration, the protruding portion is provided so as to face the bottom surface of the storage case, and the tip facing the storage case is inclined. According to this configuration, the inclined surface slides on the front end of the storage case inclined forward when it is pulled out, the front portion of the storage case is lifted, and the tip of the projecting portion contacts the contact portion.

  According to the present invention, in the refrigerator configured as described above, the storage case is made of metal, and when the protruding portion and the contact portion come into contact with each other to close the door, the rear surface of the door and the storage case It is characterized by having a gap between them.

  According to the present invention, since the temperature switching chamber capable of switching the room temperature between the low temperature side for storing the refrigerated or frozen storage and the high temperature side for keeping the heated food is provided, the economy of the user for keeping the heated food warm It is possible to provide a highly convenient refrigerator that reduces the burden on the user and makes it easy to secure a place.

  Also, there is a protruding part that protrudes on the back side of the door, and a contact part that contacts the protruding part and pushes the storage case into the temperature switching chamber when the door is closed is provided on the bottom surface of the storage case. The operation of storing the storage case can be omitted, and the usability of the refrigerator is improved. Further, since the projecting portion is arranged at the lower part of the door, it is not disturbed when the door is opened, and the convenience of the refrigerator can be improved by providing a window, a storage pocket or the like above the projecting portion.

  Further, according to the present invention, the contact portion is formed of a step where the rear portion of the bottom surface of the storage case is lowered, so that a refrigerator capable of omitting the operation of storing the storage case can be easily realized. In addition, a large volume of the storage case can be ensured.

  Further, according to the present invention, since the protruding portion is provided to face the bottom surface of the storage case and the tip facing the storage case is inclined, the storage case that is pulled out and tilted forward can be easily stored.

  Further, according to the present invention, the storage case is made of metal, and there is a gap between the back surface of the door and the storage case when the door is closed. Can be prevented.

  Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are a front view and a right side view showing the refrigerator of the first embodiment. The refrigerator 1 is provided with a refrigerator compartment 2 in the upper stage, and a temperature switching room 3 and an ice making room 4 in the middle stage. A vegetable room 5 and a freezer room 6 are arranged in the lower stage of the refrigerator 1.

  The refrigerating room 2 has a double door and stores stored items in a refrigerator. The temperature switching chamber 3 is provided on the left side of the middle stage, and the room temperature can be switched by the user. The ice making chamber 4 is provided on the right side of the middle stage and performs ice making. The vegetable room 5 is provided on the lower left side and is maintained at a temperature suitable for vegetable storage (about 8 ° C.). The freezer compartment 6 is provided on the lower right side and communicates with the ice making compartment 4 to store the stored items in a frozen state.

  FIG. 3 is a right side sectional view of the refrigerator 1. The freezing compartment 6 and the ice making compartment 4 are provided with a storage case 11 for storing stored items. A similar storage case 11 is also provided in the vegetable room 5 and the temperature switching room 3. The refrigerator compartment 2 is provided with a plurality of storage shelves 41 on which stored items are placed. A storage pocket 42 is provided on the door of the refrigerator compartment 2. Thereby, the usability of the refrigerator 1 is improved. A chilled chamber 23 maintained at a chilled temperature zone (about 0 ° C.) is provided in the lower part of the refrigerator compartment 2.

  A cold air passage 31 is provided behind the freezer compartment 6, and a cooler 17 connected to the compressor 35 is disposed in the cold air passage 31. A cold air passage 32 communicating with the cold air passage 31 is provided behind the refrigerator compartment 2. A refrigerant such as isobutane is circulated by driving a compressor 35 connected to a condenser and an expander (both not shown) to operate a refrigeration cycle. Thereby, the cooler 17 on the low temperature side of the refrigeration cycle and the air flowing through the cold air passage 31 exchange heat to generate cold air.

  Moreover, the freezer compartment fan 18 and the refrigerator compartment fan 28 are each arrange | positioned in the cold air | gas channel | paths 31 and 32. FIG. As will be described in detail later, the cold air generated by the cooler 17 is supplied to the freezer compartment 6, the ice making chamber 4, the chilled chamber 23, and the temperature switching chamber 3 through the cold air passage 31 by driving the freezer compartment fan 18. The cold air is supplied to the refrigerator compartment 2 and the vegetable compartment 5 through the cold passage 32 by driving the refrigerator compartment fan 28.

  FIG. 4 is a right side sectional view showing the temperature switching chamber 3. The upper and lower surfaces of the temperature switching chamber 3 are insulated from the refrigerator compartment 2 and the vegetable compartment 5 by heat insulation walls 7 and 8. Further, one side surface of the temperature switching chamber 3 is insulated from the ice making chamber 4 and the freezing chamber 6 by a heat insulating wall 34 (see FIG. 6), and the other side surface is a heat insulating wall 37 (see FIG. 6) forming the outer wall of the refrigerator 1. ). The front surface of the temperature switching chamber 3 can be opened and closed by a rotating door 9. In the temperature switching chamber 3, a drawer-type storage case 11 on which stored items are placed is arranged. A detachable mounting shelf 36 is disposed above the storage case 11.

  The storage case 11 is made of a metal such as stainless steel whose upper surface is opened, and easily transmits the room temperature of the temperature switching chamber 3 to the stored item. Moreover, a large stored item can be stored by detaching the mounting shelf 36. A groove portion 11 a extending in the front-rear direction is formed on the side surface of the storage case 11. Rails 34a and 37a (37a not shown) are provided on the heat insulating walls 34 and 37 on the side surfaces of the temperature switching chamber 3 so as to fit in the groove 11a and extend in the front-rear direction. The storage case 11 is slidable back and forth by guidance of rails 34a and 37a.

  The bottom surface of the storage case 11 has a step 11b whose rear portion is lowered. A protruding portion 9 a that extends in the depth direction of the temperature switching chamber 3 and protrudes toward the bottom surface of the storage case 11 is provided at the lower back of the door 9. The storage case 11 is pulled out after the door 9 is opened, and the stored items are taken in and out. As will be described later, the inside of the temperature switching chamber 3 may be kept at a high temperature. Therefore, if the storage case 11 is interlocked with the door 9, there is a risk that hot food or the like spills and burns the user. For this reason, when the door 9 is opened, the storage case 11 is not interlocked.

  When the door 9 is closed, as shown in the top view of FIG. 6, the protruding portion 9 a comes into contact with the step 11 b and the storage case 11 is pushed into the temperature switching chamber 3. A contact portion that contacts the protruding portion 9a is formed by the step 11b. Therefore, since the operation | movement which accommodates the storage case 11 is not required, the usability of the refrigerator 1 improves. Further, since the step 11 b is provided on the bottom surface of the storage case 11, the projecting portion 9 a is arranged at the lower part of the door 9. Therefore, the protruding portion 9a does not get in the way when the door 9 is opened, and the convenience of the refrigerator 1 can be improved by providing a window, a storage pocket or the like above the protruding portion 9a.

  Further, when the protruding portion 9a and the step 11b come into contact with each other to close the door 9, the protruding portion is formed so that a gap d (see FIG. 4) is formed between the back surface 9b of the door 9 and the storage case 11. The length of 9a and the arrangement of the step 11b are determined. If the rear surface 9b of the door 9 collides with the storage case 11 when the door 9 is closed vigorously, the door 9 is damaged. In particular, since the storage case 11 is made of metal, the door 9 is easily damaged by a collision. For this reason, it is possible to prevent the door 9 from being damaged by avoiding a collision between the door 9 and the storage case 11 due to the gap d.

  In FIG. 4, the back surface of the temperature switching chamber 3 is covered with a back plate 33. An inlet 33a through which air flows into the temperature switching chamber 3 is provided at the upper part of the back plate 33, and an outlet 33b through which air flows out from the temperature switching chamber 3 is provided at the lower part. Further, temperature sensors 24 and 16 for detecting the temperature in the temperature switching chamber 3 are provided in the vicinity of the inlet 33a and the outlet 33b.

  An introduction ventilation path 12 is provided behind the back plate 33 and the heat insulating wall 10 that forms the outer wall. The introduction ventilation path 12 is provided with a temperature switching chamber discharge damper 13 (see FIG. 5), and communicates with the cold air passage 31 to guide the cold air generated in the cooler 17 (see FIG. 3) to the temperature switching chamber 3. Moreover, the cool air path between the cooler 17 and the inflow side of the temperature switching chamber 3 is opened and closed by opening and closing the temperature switching chamber discharge damper 13, and the amount of air flowing into the temperature switching chamber 3 from the introduction ventilation path 12 is adjusted by the opening and closing amount. Is done.

  In the introduction ventilation path 12, a temperature switching chamber blower 14 is provided between the temperature switching chamber discharge damper 13 and the inflow port 33a. The cold air in the cold air passage 31 is easily guided to the temperature switching chamber 3 by driving the temperature switching chamber blower 14.

  A temperature switching chamber return damper 20 is provided behind the outlet 33b. The temperature switching chamber return damper 20 has openings 20a and 20b, and has a baffle 20c that opens and closes the other by rotation. When the opening 20b is opened, the air flowing out of the temperature switching chamber 3 is guided to the cooler 17 through the return ventilation path 19 (see FIG. 5).

  When the opening 20a is opened, the air flowing out from the temperature switching chamber 3 is guided to the intake side of the temperature switching chamber blower 14, and the cool air path between the outflow side of the temperature switching chamber 3 and the cooler 17 is closed. Therefore, the air in the temperature switching chamber 3 can be circulated as shown by the arrow F by driving the temperature switching chamber blower 14, closing the opening 20 b and closing the temperature switching chamber return damper 20. Note that the temperature switching chamber blower 14 may be provided in the temperature switching chamber 3.

  A heater 15 is provided behind the inlet 33 a of the temperature switching chamber 3. The heater 15 is formed of a heat radiation type glass tube heater, and raises the temperature of the temperature switching chamber 3 by radiant heat released through the back plate 33. The temperature switching chamber blower 14 is arranged so as to blow toward the surface of the heater 15. Thereby, the surface temperature of the heater 15 can be lowered and safety can be improved. Further, the outlet 33b is provided with a temperature fuse 30 that cuts off the energization of the heater 15 when the temperature reaches a predetermined temperature.

  FIG. 5 is a front sectional view of the vicinity of the middle stage of the refrigerator 1. The cold air passage 31 behind the freezer compartment 6 opens at the upper front of the freezer compartment fan 18, and air is sent out to the ice making chamber 4 by the freezer compartment fan 18. A freezer compartment damper 22 is provided below the freezer compartment 6 that communicates with the ice making compartment 4. A return ventilation path 21 (see FIG. 3) is provided in the lower rear part of the freezer compartment 6 to guide air to the cooler 17 via the freezer damper 22 and return to the cool air passage 31. The amount of air flowing out of the freezer compartment 6 is adjusted by opening and closing the freezer compartment damper 22.

  The upper part of the cold air passage 31 communicates with the cold air passage 32 via the refrigerator compartment damper 27. Further, the cold air passage 31 is branched and communicates with the chilled chamber 23 via the chilled chamber damper 25 and also communicates with the introduction ventilation path 12 (see FIG. 4) as described above.

  A refrigerator outlet (not shown) is opened at the lower back of the refrigerator compartment 2 and a vegetable compartment inlet (not shown) is provided in the vegetable compartment 5. The refrigerator compartment outlet and the vegetable compartment inlet are connected by a passage (not shown) passing through the back surface of the temperature switching chamber 3 so that the refrigerator compartment 2 and the vegetable compartment 5 communicate with each other.

  The temperature switching chamber return damper 20 is provided in the lower left part of the temperature switching chamber 3. Behind the temperature switching chamber 3 and the vegetable chamber 5 is provided a return ventilation path 19 that extends downward from the temperature switching chamber return damper 20 and communicates with the return ventilation path 21 (see FIG. 3). As described above, the air in the temperature switching chamber 3 is guided to the cooler 17 through the return ventilation paths 19 and 21 by opening the opening 20b (see FIG. 4) of the temperature switching chamber return damper 20. A vegetable room outlet (not shown) communicating with the return ventilation path 19 is provided on the back of the vegetable room 5.

  FIG. 7 is a cold air circuit diagram showing the flow of cold air in the refrigerator 1. The freezer compartment 6, the refrigerator compartment 2, and the temperature switching chamber 3 are each arranged in parallel. Further, the ice making room 4 is arranged in series with the freezing room 6, and the vegetable room 5 is arranged in series with the refrigerating room 2. The cold air generated by the cooler 17 is sent up to the ice making chamber 4 by raising the cold air passage 31 as shown by an arrow A (see FIG. 5) by driving the freezer compartment fan 18. The cold air sent to the ice making room 4 flows through the ice making room 4 and the freezing room 6 and flows out from the freezing room damper 22. And it returns to the cooler 17 via the return ventilation path 21. As a result, the ice making chamber 4 and the freezing chamber 6 are cooled.

  The cold air branched at the top of the cold air passage 31 on the exhaust side of the freezer blower 18 by the driving of the cold compartment blower 28 circulates through the cold air passage 32 through the cold room damper 27 as shown by an arrow B (see FIG. 5). And sent to the refrigerator compartment 2. Moreover, it is sent to the chilled chamber 23 as shown by an arrow C (see FIG. 5). These cold air flows through the refrigerator compartment 2 and the chilled compartment 23 and then flows into the vegetable compartment 5. The cold air flowing into the vegetable compartment 5 flows through the vegetable compartment 5 and returns to the cooler 17 through the return ventilation paths 19 and 21. Thereby, the inside of the refrigerator compartment 2 and the vegetable compartment 5 is cooled, and if it becomes preset temperature, the refrigerator compartment damper 27 and the chilled compartment damper 23 will be closed.

  Further, the cold air branched at the upper part of the cold air passage 31 on the exhaust side of the freezer compartment fan 18 by the drive of the temperature switching chamber blower 14 circulates through the introduction ventilation path 12 as shown by an arrow D (see FIG. 5), and the temperature It flows into the temperature switching chamber 3 through the switching chamber discharge damper 13. The cold air that has flowed into the temperature switching chamber 3 flows through the temperature switching chamber 3 and flows out of the temperature switching chamber return damper 20. And as shown to the arrow E (refer FIG. 5), it returns to the cooler 17 via the return ventilation path 19 and 21. FIG. Thereby, the inside of the temperature switching chamber 3 is cooled.

  As described above, the temperature switching chamber 3 can switch the room temperature by a user's operation. The operation modes of the temperature switching chamber 3 are wine (8 ° C.), refrigeration (3 ° C.), chilled (0 ° C.), soft freezing (−8 ° C.), and freezing (−15 ° C.) depending on the temperature zone. Provided.

  Thus, the user can store the refrigerated product at a desired temperature by refrigeration or refrigeration. The room temperature can be switched by changing the amount of opening of the temperature switching chamber discharge damper 13. For example, the heater 15 may be energized to switch the temperature from the freezing room temperature to the refrigerated room temperature. Thereby, it can switch to desired room temperature rapidly.

  Further, by energizing the heater 15, the temperature of the temperature switching chamber 3 can be switched from the low temperature side where the stored items are cooled and stored to the high temperature side where the cooked heated food is temporarily kept warm or cooked. Since the growth temperature of the main food poisoning bacteria is 30 ° C. to 45 ° C., the indoor temperature on the high temperature side is preferably set to 50 ° C. or more in consideration of the tolerance of the heater capacity, the temperature distribution in the temperature switching chamber 3, and the like. Thereby, propagation of miscellaneous bacteria can be prevented.

  Moreover, since the heat-resistant temperature of the general resin parts used for a refrigerator is 80 degreeC, when the room temperature of a high temperature side shall be 80 degrees C or less, it can implement | achieve cheaply. In addition, in order to sterilize food poisoning bacteria, for example, in the case of enterohemorrhagic E. coli (pathogenic E. coli O157), heating at 75 ° C. for 1 minute is required. Therefore, it is more desirable to set the indoor temperature on the high temperature side to 75 ° C. to 80 ° C.

The following are the test results on the sterilization of food poisoning bacteria at 55 ° C. In the initial state, E. coli 2.4 × 10 ³ CFU / mL, Staphylococcus aureus 2.0 × 10 ³ CFU / mL, Salmonella 2.1 × 10 ³ CFU / mL, Vibrio parahaemolyticus 1.5 × 10 ³ CFU / ML, Cereus 4.0 × 10 ³ CFU / mL. This test sample was heated from 3 ° C. to 55 ° C. over 40 minutes, kept at 55 ° C. for 3.5 hours, then returned from 55 ° C. to 3 ° C. over 80 minutes, and the amount of each bacterium was examined again. As a result, all the bacteria were reduced to a level of 10 CFU / mL or less (not detected). Therefore, even if the set temperature on the high temperature side of the temperature switching chamber 3 is 55 ° C., there is a sufficient sterilization effect.

  When the temperature switching chamber 3 is switched from the low temperature side to the high temperature side, the temperature switching chamber discharge damper 13 is closed, and the opening 20 b is closed by the baffle 20 c of the temperature switching chamber return damper 20. Next, the heater 15 is turned on, and the rotation speed of the temperature switching chamber blower 14 is increased as compared with the low temperature side.

  As a result, the air sent from the temperature switching chamber blower 14 flows out through the outlet 33 b as shown by the arrow F and passes through the opening 20 a of the temperature switching chamber return damper 20. As a result, the air in the temperature switching chamber 3 is guided to the temperature switching chamber blower 14 through the temperature switching chamber return damper 20 and circulates as indicated by the broken line S in FIG. As a result, the temperature in the temperature switching chamber 3 is raised, and the capacity of the heater 15 is varied and maintained at a predetermined temperature on the high temperature side.

  When the temperature switching chamber 3 is switched from the high temperature side to the low temperature side, the temperature switching chamber discharge damper 13 is opened, and the opening 20b of the temperature switching chamber return damper 20 is opened. Then, the heater 15 is turned off, and the rotation speed of the temperature switching chamber blower 14 is reduced as compared with the high temperature side. Thereby, the cold air of the cooler 17 flows into the temperature switching chamber 3 and is maintained at a predetermined temperature on the low temperature side.

  According to the present embodiment, since the temperature switching chamber 3 that can switch the room temperature between the low temperature side for storing the stored product in a cold state and the high temperature side for maintaining the heated food is provided, the user's economy is not required. Thus, it is possible to provide a highly convenient refrigerator 1 that can reduce the burden on the environment and keep the heated food warm without requiring an installation place such as a heat storage.

  Further, a protruding portion 9 a that protrudes on the back side of the door 9 is provided, and when the door 9 is closed, a step 11 b that abuts against the protruding portion 9 a and pushes the storage case 11 into the temperature switching chamber 3 is provided on the storage case 11. Since it provided in the bottom face, the operation | movement which accommodates the storage case 11 pulled out can be skipped, and the usability of the refrigerator 1 improves.

  Next, FIG. 8 is a side sectional view showing the temperature switching chamber 3 of the refrigerator of the second embodiment. For convenience of explanation, the same parts as those in the first embodiment shown in FIGS. In the present embodiment, a protrusion 11 c made of a rib is provided on the bottom surface of the storage case 11. Other parts are the same as those in the first embodiment.

  The protruding portion 11 c is formed to protrude from the bottom surface of the storage case 11, and comes into contact with the protruding portion 9 a when the door 9 is closed. Thereby, similarly to 1st Embodiment, the operation | movement which accommodates the drawer | drawing-out storage case 11 can be skipped, and the usability of the refrigerator 1 improves. Moreover, since the protrusion part 11c consists of a rib, the inner surface side of the bottom face of the storage case 11 can be made into a flat surface. Thereby, the fall at the time of mounting a store thing can be prevented. In addition, since the storage case 11 of the first embodiment has a step 11b on the bottom surface, a larger volume than that of the present embodiment can be secured.

  Next, FIG. 9 is side surface sectional drawing which shows the protrusion part and protrusion part of the refrigerator of 3rd Embodiment. For convenience of explanation, the same parts as those in the second embodiment shown in FIG. In the present embodiment, the protruding portion 9 a of the door 9 is provided to face the bottom surface of the storage case 11, and the tip facing the bottom surface of the storage case 11 is an inclined surface 9 b. Other parts are the same as those of the second embodiment.

  According to this embodiment, even if the storage case 11 pulled out by the guides of the rails 34a and 37a is inclined forward, the inclined surface 9b slides on the front end of the storage case 11 when the door 9 is closed, and the storage case 11 The front is lifted. Thereby, the storage case 11 can be easily stored. You may provide the same inclined surface 9b in the protrusion part 9a of the door 9 of the refrigerator 1 of 1st Embodiment.

  In the first to third embodiments, a damper may be provided at the outlet of the vegetable compartment 5. Thereby, when the temperature switching chamber 3 is switched from the high temperature side to the low temperature side, it is possible to prevent the hot air from the temperature switching chamber 3 from flowing backward into the vegetable chamber 5 by closing the damper. Further, when the freezer compartment fan 18 is stopped when the temperature switching chamber 3 is switched from the high temperature side to the low temperature side, the freezer compartment damper 22 is closed. Thereby, it is possible to prevent the hot air from flowing backward from the freezer damper 22 into the freezer compartment 6 by driving the temperature switching chamber blower 14.

  Moreover, although the freezer compartment 6 and the refrigerator compartment 2 are cooled with the cooler 17, you may provide the cooler for exclusive use of the refrigerator compartment 2 and the vegetable compartment 5 separately. At this time, the refrigerator 17 and the temperature switching chamber 3 can be cooled by the cooler 17.

  According to the present invention, it can be used for a refrigerator having a temperature switching chamber.

The front view which shows the refrigerator of 1st Embodiment of this invention. The right view which shows the refrigerator of 1st Embodiment of this invention. Sectional drawing on the right side showing the refrigerator according to the first embodiment of the present invention. Cross section of the right side showing the temperature switching chamber of the refrigerator of the first embodiment of the present invention Front sectional drawing which shows the middle step part of the refrigerator of 1st Embodiment of this invention. The top view which shows the temperature switching chamber of the refrigerator of 1st Embodiment of this invention. The cold air circuit diagram which shows the flow of the cold air of the refrigerator of 1st Embodiment of this invention Cross section on the right side showing the temperature switching chamber of the refrigerator of the second embodiment of the present invention The side view which shows the protrusion part and protrusion part of the refrigerator of 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Refrigerated room 3 Temperature switching room 4 Ice making room 5 Vegetable room 6 Freezer room 9 Door 9a Projecting part 9b Inclined surface 11 Storage case 11b Step (contact part)
11c Protruding part (contact part)
DESCRIPTION OF SYMBOLS 12 Introduction ventilation path 13 Temperature switching chamber discharge damper 14 Temperature switching chamber blower 15 Heater 17 Cooler 16, 24 Temperature sensor 18 Freezing chamber blower 19, 21 Return ventilation path 20 Temperature switching chamber return damper 22 Freezing chamber damper 25 Chilled chamber damper 28 Refrigerating room blower 30 Thermal fuse 31, 32 Cold air passage 33 Back plate 34, 37 Insulating wall 34a, 37a Rail 35 Compressor 36 Mounting shelf

Claims (4)

In a refrigerator equipped with a temperature switching chamber capable of switching the room temperature between a low temperature side for cooling and storing stored items by cooling by a cooler and heating by a heater and a high temperature side for keeping heated food warm,
A door that opens and closes the front surface of the temperature switching chamber, and a slidable storage case for storing stored items,
Protruding portions projecting on the back side of the door are provided, and when the door is closed, an abutting portion that contacts the projecting portion and pushes the storage case into the temperature switching chamber is formed on the bottom surface of the storage case. Provided ,
The refrigerator according to claim 1, wherein the contact portion includes a step in which a rear portion of the bottom surface of the storage case is lowered . The refrigerator according to claim 1, wherein the abutting portion has a vertical surface, and abuts the protruding portion on the vertical surface . 3. The refrigerator according to claim 1 , wherein the protruding portion is provided to face the bottom surface of the storage case, and a tip of the protruding portion facing the storage case is an inclined surface. . The storage case is made of metal, and has a gap between the rear surface of the door and the storage case when the protruding portion and the contact portion come into contact with each other to close the door. The refrigerator in any one of Claims 1-3 .

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