JP3603943B2 - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a difficulty with prior art wherein uniform cooling capability in a refrigerator is insufficient, and a circulation flow of air in the refrigerator is hard to circulate in the refrigerator and make it difficult to cool articles in the refrigerator, and further mal odor is increased to cause insanitary conditions. SOLUTION: There are provided a storage chamber 11 for containing therein any article, condensers 21, 25 for producing cold air flowing into the storage chamber 11, and cold air passages 23, 27, 28, 30 for guiding the cold air to the storage chamber 11. A passage provided in the vicinity of the center on the side of a back wall of the storage chamber 11 serves as a circulation passage 28a, which passage 28a has a suction hole 41a on the side of the inside of the refrigerator and further has an air fan 29, and further has a filter 41b in the vicinity of the suction hole 41a.

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a refrigerator for sending cool air into a storage room.
[0002]
[Prior art]
Conventionally, a refrigerator of this type includes an air circulation duct vertically provided in a central portion in the back of a refrigerator and a compressor provided below the air circulation duct, as disclosed in Japanese Patent Application Laid-Open No. 9-303935. An air circulation blower that is operated at the time of stoppage, a deodorizing means provided in the air circulation duct, and vertically provided at both inner ends at a predetermined interval from the air circulation duct, and the compressor operates. And a cool air discharge duct having a discharge port for discharging cool air from a blower cooled by a cooler.
[0003]
[Problems to be solved by the invention]
In the refrigerator as described above, during operation of the compressor, in the vicinity of the back center of the refrigerating room where the air circulation duct is located, it is difficult for the cool air cooled by the cooler to rotate, so that it is difficult to cool. There is a problem that there is a shortage of uniform cooling capacity in the refrigerator only in the vicinity where there is a tendency to cool well, and furthermore, when operating the air circulation blower, the left and right sides of the air circulation duct of the air circulation duct in the center are left and right. There is a problem that the circulating flow of the air in the refrigerator is difficult to rotate in the region near the center between the storages, and the stored material is difficult to cool.
[0004]
Moreover, although a deodorizing means is provided in the circulation passage of the air circulation duct, the refrigerated room air that first enters the air circulation duct up to the deodorization means has not been deodorized at all. There is a strong possibility that odor adheres to the surface of the circulation passage, and mold spores and fungi that have entered from the outside also adhere to the inner surface of the air circulation duct up to the deodorizing means in the same manner as described above. However, there is a problem that even the above-mentioned deodorizing means may be exposed to mold and fungi, and there is a risk that the unpleasant odor in the refrigerator increases and the state becomes unsanitary.
[0005]
[Means for Solving the Problems]
A refrigerator according to the present invention has solved the above-described problems. A refrigerator according to the present invention includes a storage room for storing a storage item, a cooler that generates cool air flowing into the storage room, and a storage device that stores the cool air in the storage room. A cold air passage leading to the room,The cold passage isA passage provided near the center on the back wall side of the storage roomHasOf the passageStorage roomSide has a suction port, a blower is provided in the passage,In front of the blowerA filter is provided near the suction portA part of the cool air flowing into the storage chamber generated by the cooler flows into the suction side of the blower, and at least a part near the blower side of the filter includes the cool air flow and the filter. At least one of a heat insulating member for separating and / or a separating wall is provided.It is characterized by the following.
[0006]
Further, the refrigerator of the present invention is provided with a storage room for storing a storage item, a cooler for generating cool air flowing into the storage room, and a cool air passage for guiding the cool air to the storage room,The cold passage isA passage provided near the center on the back wall side of the storage roomHasBelow the passageStorage roomSide has a suction port, a blower is provided in the passage,In front of the blowerA filter is provided near the suction portA part of the cool air flowing into the storage chamber generated by the cooler flows into the suction side of the blower, and at least a part near the blower side of the filter includes the cool air flow and the filter. At least one of a heat insulating member for separating and / or a separating wall is provided.It is characterized by the following.
[0007]
Further, the refrigerator of the present invention is provided with a storage room for storing stored items, a cooler for generating cool air flowing into the storage room, and the cool air guided to the storage room via the storage room and the partition wall. A cool air passage, and a member that forms at least a part of the partition wall and discharges cold heat due to cool air flowing through the cool air passage into the storage chamber.Provided,The cooler passage,A passage provided near the center on the back wall side of the storage roomHasBelow the passageStorage roomSide has a suction port, a blower is provided below the passage,In front of the blowerA filter is provided on the suction port sideA part of the cool air flowing into the storage chamber generated by the cooler flows into the suction side of the blower, and at least a part near the blower side of the filter includes the cool air flow and the filter. At least one of a heat insulating member for separating and / or a separating wall is provided.It is characterized by the following.
[0008]
Further, the refrigerator of the present invention includes the filterFront sideCenterIs a storage roomIt is characterized by projecting to the side.
[0009]
Furthermore, in the refrigerator of the present invention, the filter is:Storage roomAnd a path connecting the blower side and the blower side.Storage roomIt is characterized in that it has a tunnel shape with openings on the side and the blower side.
[0010]
Furthermore, the refrigerator of the present invention is characterized in that the tunnel-like path of the filter is inclined.
[0011]
Further, the refrigerator of the present invention is characterized in that the inclination of the tunnel-like path of the filter becomes higher toward the rear.
[0012]
The refrigerator according to the present invention is characterized in that at least one of the filter and a member near the filter has at least one of antibacterial, humidity control, and deodorizing functions.
[0013]
Further, the refrigerator according to the present invention is characterized in that at least one of the filter and a member near the filter contains a porous substance.
[0014]
Furthermore, the refrigerator of the present invention is characterized in that at least one of a waterproof means and a drain means is provided around the filter.
[0015]
Still further, in the refrigerator according to the present invention, the filter is provided with a cover having an opening, and a gap is provided between the filter and the cover.
[0016]
Further, the refrigerator of the present inventionThe tip of the passage is guided to a ceiling duct, and cool air can be discharged from the ceiling discharge port to the storage room.It is characterized by the following.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the refrigerator of the present invention will be described with reference to the drawings.
[0018]
1 is a side sectional view showing a refrigerator according to a first embodiment of the present invention, FIG. 2 is a front view of a refrigerator of FIG. 1, FIG. 3 is a detailed view of a main part of the refrigerator of FIG. 1, and FIG. 5, FIG. 5 is a perspective view showing members, FIG. 6 is a perspective view showing other members, FIG. 7 is a cross-sectional view of main parts near the members of FIG. 5, and FIG. 9 is a side sectional view of the refrigerator of the second embodiment of the present invention, FIG. 10 is a front view of a refrigerator of FIG. 9, and FIG. 11 is a view of the filter of the present invention from the storage room side. FIG. 12 is a view of the filter shown in FIG. 11 as viewed from above.
[0019]
In FIG. 1, the refrigerator 1 has an inner box 2b disposed inside an outer box 2a covering the outside, and a gap between the outer box 2a and the inner box 2b is filled with a heat insulating material 2c such as polyurethane foam. An electrical box 1a includes a control device 1b for controlling the operation of the refrigerator 1, and the control device 1b is electrically connected to respective electric components of the refrigerator 1 described later. The interior of the refrigerator 1 is divided into a refrigerator compartment 11, a vegetable compartment 12, and a freezer compartment 13 in this order from above.
[0020]
The vegetable compartment 12 and the freezing compartment 13 are partitioned by a partition frame 17 made of a heat insulating member and a partition plate 19 made of a thermal insulating member. The freezing compartment 13 is further partitioned into an upper portion and a lower portion by a partition frame 18 made of a heat insulating member. . The refrigerator compartment 11 and the vegetable compartment 12 are partitioned by a partition frame 16 made of a heat insulating member and partition plates 31 and 32 made of a resin molded product. The partition plate 32 is provided with a through hole 32a.
[0021]
At the lower part of the refrigerating room 11, an ice temperature room 14, which is an isolation room partitioned by a partition plate 46, is provided. A plurality of shelves 45 are provided in the refrigerator compartment 11, and the refrigerator compartment 11 is divided into a plurality by the shelf 45 and the partition plate 46. The front surface of the refrigerating compartment 11 can be opened and closed by a rotary heat insulating door 3. The vegetable compartment 12, the upper part of the freezer compartment 13, and the lower part of the freezer compartment 13 are openable and closable by sliding-type heat-insulating doors 4, 5, and 6, respectively, so that the storage containers 54, 55, and 56 can be drawn out. ing.
[0022]
A compressor 20 is arranged at the rear of the freezer compartment 13. A condenser (not shown) is connected to the compressor 20 via a discharge pipe 20a, and coolers 21 and 25 are connected in series via a suction pipe 20b. The condenser and the cooler 25 are connected via a first capillary tube (not shown). A second capillary tube (not shown) is arranged between the coolers 21 and 25.
[0023]
Thus, a refrigeration cycle is configured, and when the refrigeration cycle operation is performed, the coolers 21 and 25 are cooled. Defrosters 61 and 62 for defrosting the coolers 21 and 25 are provided below the coolers 21 and 25. 63 and 64 are drain receiving members.
[0024]
Further, means for switching the refrigerant flow is provided between the condenser and the first capillary tube, and the switching means and the cooler 21 are connected via a third capillary tube (not shown). By switching the switching means, only the cooler 21 can be cooled.
[0025]
The cooler 21 is disposed in the cool air passage 23, and the cool air passage 23 is formed by the inner box 2b and the evaporative cover 33 made of a resin molded product. A blower 22 is arranged above the cooler 21 in the cool air passage 23. The cool air passage 23 communicates with the freezer compartment 13 through a discharge port 13a and a return port 13b to the freezer compartment 13 provided on the back plate 33a.
[0026]
The cooler 25 is arranged in the cool air passage 27. The lower part of the cool air passage 27 is formed by the inner box 2 b and the back plate 34 of the vegetable compartment 12. The back plate 34 is made of a heat insulating member and prevents the vegetable compartment 12 provided near the cooler 25 from being overcooled. A blower 26 is arranged above the cooler 25 in the cool air passage 27. The cool air passage 27 communicates with the vegetable compartment 12 through the return port 12b.
[0027]
The upper portion of the cold air passage 27 is formed by a heat insulating member 36 fixed to the back plate 35 of the ice temperature chamber 14 and the inner box 2b. The heat insulating member 36 is provided with a discharge port 36a. FIG. 2 shows a front view of the refrigerating compartment 11, and the rear plate 35 is provided with a discharge port 35a at the same position as the discharge port 36a. The refrigerator compartment 11 communicates with the cool air passage 27 through the discharge ports 35a and 36a.
[0028]
The cool air passage 27 communicates with a cool air passage 28 at the back of the refrigerator compartment 11. In FIG. 2, the cool air passage 28 is branched by a rib 28d into a central passage 28a (second passage) disposed substantially at the center and side passages 28b (first passages) provided on both sides of the central passage 28a. I have. The rib 28d is formed integrally with a back plate 70 described later. The cool air passage 27 is also branched into branch passages 27a and 27b corresponding to the cool air passage 28.
[0029]
A blower 29 is provided at the lower end of the central passage 28a. A blower cover 41 facing the refrigerator compartment 11 is detachably attached to the front surface of the blower 29 by fitting a nail or the like. The blower cover 41 has a plurality of openings 41a. A filter 41b, which will be described later, is detachably provided between the blower 29 and the blower cover 41.
[0030]
FIG. 3 shows a detailed view of the blower 29. The central passage 28a circulates the air taken in from the refrigerator compartment 11 through the opening 41a by the blower 29 and the cool air passage 27 by the blower 26 (see FIG. 1). A part of the cold air is mixed. Part of the cool air flowing through the cool air passage 27 collides with the heat insulating member 41 c provided between the filter 41 b and the blower 29, and is guided toward the blower 29.
[0031]
The heat insulating property of the heat insulating member 41c insulates the cool air from the cold air passage 27, and the cool air from the relatively cold refrigerator room 11 (inside the refrigerator) flowing from the filter 41b side is filtered by the heat insulating member 41c. There is no worry about condensation on the 41b side.
[0032]
At this time, a corresponding heat insulating member may also be provided on the inner surface of the blower cover 41 in the flow area of the cool air from the cool air passage 27 to prevent dew condensation, and the filter 41b may also serve as the heat insulating member. When a part of the cool air from the cool air passage 27 flows to the filter 41b side of the blower cover 41 and the blower cover 41 is formed of metal or the like, a part of the cool heat of the cool air passing through the central passage 28a is refrigerated from the blower cover 41. It will be released into the chamber 11.
[0033]
The heat insulating member 41c provided between the filter 41b and the blower 29 is for isolating the cool air flow from the cool air passage 27 and the filter 41b as an isolation wall, and the opening 41a is also provided with the filter 41b. The cold air flow is isolated from the heat insulating member 41c. This prevents the cool air flowing through the cool air passage 27 from entering the refrigerator compartment 11 through the opening 41a. As a result, it is possible to prevent the local cooling of the refrigerator compartment 11 from being excessively cooled due to the cold air leak, and further to prevent the dew condensation around the blower cover 41, the local excessive cooling due to the cold air outflow, and the freezing of the stored product due to the local cooling. I can do it.
[0034]
If a guide portion for allowing the cool air to flow toward the blower 29 is provided in the vicinity of the heat insulating member 41c, the prevention of the cool air from entering the refrigerator compartment 11 through the opening 41a is further ensured.
[0035]
Further, when the heat insulating member 41c is made of a substance having air permeability (for example, a hard urethane foam material having air permeability), the suction force of the blower 29 near the heat insulating member 41c reduces the amount of cold air from the cool air passage 27. When it is stronger than the flow, the cool air on the refrigerating room 11 side flowing through the filter 41b flows into the blower 29 even through the heat insulating member 41c, and the functional effect of the filter 41b is further improved.
[0036]
Although the heat insulating member 41c also serves to guide and isolate the cool air from the cool air passage 27 as described above, another rigid body (for example, a resin material such as an ABS material or a PS material, or a resin material such as an Fe material or an Al material) is used. The heat insulating member 41c, the isolation wall, and the guide portion may be formed of a metal material or the like: a hole may be provided in some cases to prevent ventilation, and a heat insulating material (for example, a glass wool material or a sponge material).
[0037]
When the cold air in the refrigerator compartment 11 flows through the filter 41b, dust, mold spores, fungi, etc. in the refrigerator compartment 11, which enter from the outside, contained in the cold air are also removed. The surface of the central passage 28a, and furthermore, the cold air flows into another storage room, so that the possibility that the dust, mold spores, fungi, and the like adhere to other storage rooms and the cool air passages is reduced. In addition, the possibility of generation of off-flavor due to the proliferation of dust and mold spores and fungi is reduced, and a sanitary refrigerator can be obtained. Further, when copper fiber or carbon fiber is mixed with the filter 41b, a sterilization function and a deodorization function are further added.
[0038]
Further, an opening 41a serving as a suction port is provided below the central passage 28a serving as a circulation passage, and a ceiling discharge port 43a and a discharge section 70b, which will be described later, serving as cool air discharge ports are provided above. The cool air flows from above the refrigerator compartment 11 downward without interruption, and the circulation of the cool air in the refrigerator, which has been provided near the opening 41a and passed through the filter 41b, is further improved.
[0039]
In addition, projecting portions 41d and 41e are provided around the outer periphery of each of the blower cover 41 and the opening 41a to provide waterproofing means from the outside of the blower cover 41, and a hole 41f is provided below the blower cover 41 to form the blower cover 41. When the drain means is used, even if water droplets due to dew condensation or the like are formed on the side of the refrigerator compartment 11 of the member 42 described later or on the surface of the blower cover 41, the water droplets are not directly applied to the filter 41b. Even if water drops due to condensation or the like accumulate, the water is drained to the outside of the blower cover 41 from the hole 41f, the moisture is not absorbed by the filter 41b, and the filter 41b has a predetermined function without damaging the filter 41b. (For example: even if it contains a porous substance having a bacterium, sterilization, humidity control, deodorization, etc.) Because there is not reduced or disturb the ability action, refrigerators the features continue long time can be obtained.
[0040]
In addition, if the filter 41b contains a porous substance, the porous substance can absorb the odor or the like and the humidity control effect by absorbing and releasing moisture (for example: average pore diameter = 50 to 110 angstroms). Porous material), and the contact area of the cold air in the cold air passage near the porous substance is further increased due to the porousness, and the above-mentioned effect is further increased.
[0041]
Further, since a gap is provided between the filter 41b and the blower cover 41, the cool air flowing from the blower cover 41 spreads over the entire surface of the filter 41b and flows therethrough. Load is reduced, which helps to reduce energy loss. Further, not only the effect of the filter 41b is further increased, but also moisture generated around the filter 41b due to dew condensation or the like on the blower cover 41 is removed from the blower cover 41. Since they are separated from each other, the refrigerator does not enter the filter 41b to lower its function, and each function can be more effectively provided for a long period of time.
[0042]
The cool air passage 28 is formed by a member 42 forming the inner wall of the refrigerator compartment 11 and a back plate 70 provided on the inner box 2b. The back plate 70 is formed integrally with the back plate 35. The member 42 is formed of a heat conductive member having a heat conductivity having a shape as shown in FIG. 5 (for example, aluminum, its alloy, stainless steel, etc., which have good workability and high rust prevention effect).
[0043]
This enables cold storage and release of cold heat. When the thickness of the heat conducting member is large, the cold storage capacity increases and the strength also increases. When the thickness is small, the efficiency of discharging cold heat increases, which is advantageous for weight reduction. Therefore, a thin plate or a thick plate may be selected and provided in a timely and appropriate manner according to the purpose.
[0044]
When the uneven shape is provided on the surface of the member 42 by press working or the like, the surface area can be increased. As a result, the amount of cold storage or the release of cold heat increases, and the cooling efficiency can be improved. Furthermore, the strength of the member 42 can be reinforced by providing the concave portions or convex portions that are linearly continuous.
[0045]
7 and 8 show detailed cross-sectional views of the upper end and the lower end of the member 42. FIG. According to these figures, the member 42 is locked by the upper mounting portion 71 provided on the back plate 70 and the lower mounting portion 72 provided on the back plate 35. When the lever portion 71a of the upper mounting portion 71 is pushed up by a finger, the engagement of the claw portion 71b is released.
[0046]
In this state, the member 42 can be detached from the lower mounting portion 72 by tilting the upper portion of the member 42 forward and pulling it upward, and the member 42 is detachable. Thus, cleaning of the cold air passage 28 and the member 42 on the side of the cold air passage 28 can be easily performed. The lower portion of the member 42 is sealed by a seal member 73 fixed to the heat insulating member 36.
[0047]
Further, since a temperature detecting means 75 described later, which is electrically connected to the control device 1b, is not provided on the member 42 but provided around the member 42, the member 42 is further easily attached and detached. I have.
[0048]
FIG. 4 is a top cross-sectional view of the refrigerating compartment 11, and the surface of the member 42 that covers the side passage 28b on the side of the side passage 28b does not transmit much of the cold heat of the cool air passing through the side passage 28b to the member 42. The heat insulating member 28c is arranged as described above. The side wall of the side passage 28b is formed by the back plate 70, and the side wall is provided with a plurality of openings 70a.
[0049]
On the back plate 70, a wall surface portion 70c that covers the outer periphery of the member 42 is formed. A plurality of discharge portions 70b communicating with the opening 70a are recessed in the wall surface portion 70c. Therefore, the side passage 28b communicates with the refrigerating room 11 through the discharging part 70b and the opening 70a, so that cold air can be discharged to the refrigerating room 11.
[0050]
In FIG. 2, the wall portion 70c is formed near the same height as the shelf 45 removably mounted on the mounting portion 74 so that food or the like mounted on the shelf 45 does not drop to the discharge portion 70b. Has become. The opening 70a is formed in a slit shape so that the stored material does not fall into the side passage 28b. Further, a rib 70d for guiding cool air to the discharge portion 70b is formed on the back plate 70. Note that, in this drawing, the shelf 45 and the partition plate 46 are drawn by two-dot chain lines in order to make it easy to see behind them.
[0051]
The refrigerator compartment 11 is divided into a plurality of sections by the shelf 45, and the temperature detecting means 75 is provided above the discharge section 70b in the section from the center in the vertical direction. The temperature detecting means 75 is made of, for example, a thermistor. The temperature detecting means 75 is mounted near (the inner box 2b side).
[0052]
Therefore, the cool air discharged from the discharge portion 70b through the opening 70a does not directly hit the temperature detecting means 75, but mixes with the air in the compartment in the space defined by the shelves 45, 45, and After cooling the stored items, the stored items are guided to the through-hole 32a below the refrigerator compartment 11 and flow downward from the front of the shelf 45.
[0053]
At this time, the air inside the refrigerator mixed with the cool air discharged from the discharge portion 70b of the space defined by the shelves 45, 45 also fills the vicinity of the temperature detecting means 75, and the direct influence of the cold heat of the member 42 is also reduced. And is detected as the temperature inside the refrigerator compartment 11. A shielding rib 70f is provided around the opening 70e as needed so that the cool air discharged from the discharge part 70b does not directly hit the temperature detecting means 75.
[0054]
Further, the temperature detecting means 75 has a center located at a position of about 50 mm above the discharge section 70 b and at a position of about 40 mm below the back surface of the shelf 45 on a horizontal plane. Detect internal temperature. In addition, the temperature detecting means 75 is located 10 mm or more above the discharge unit 70 b in the same section defined by the shelves 45, 45, and 20 mm or more below the horizontal back surface of the shelf 45 above the shelf 45. The inside temperature of the refrigerator compartment 11 is detected, which is substantially equal to the average room temperature, without being affected by the cool airflow from the discharge section 70b or the relatively cool cool air floating on the back surface of the upper shelf 45.
[0055]
Then, the cool air in the refrigerator cooled by the cold heat of the member 42 flows downward near the refrigerator compartment 11 side of the member 42 and flows through the space in the refrigerator while being mixed with the cool air discharged from the discharge unit 70b. Therefore, the cool air due to the cold does not directly hit the temperature detecting means 75, and the inside of the refrigerator can be kept at a more appropriate temperature.
[0056]
In some cases, it is not necessary to provide the discharge section 70b communicating with the opening 70a in each of the plurality of spaces partitioned by the shelf 45, and the discharge section 70b is provided in the space below the refrigerator compartment 11. The discharge section 70b communicating with the opening 70a is provided on the left and right only in the upper two stages of the shelves 45, 45, and the rear end of the shelf 45 and the back surface of the refrigerator compartment 11 (of the member 42) are not provided. If a gap is provided between the cooling unit 11 and the cooling unit 11, the cool air drops from above and below the refrigerating compartment 11, and also cools the space below the refrigerating compartment 11. The effect also works, and the refrigerating room 11 is uniformly cooled.
[0057]
Further, since the temperature detecting means 75 has a longitudinal direction in the left-right direction, the area in the vertical direction of the temperature detecting means 75 can be small, and the area where the discharge port is located can be widened. 70b is provided, and the temperature inside the refrigerator is made uniform.
[0058]
Further, if the upper wall surface of the discharge portion 70b communicating with the opening 70a is slightly inclined so as to be lower toward the discharge portion 70b side, the discharged cool air may flow downward. In addition, the influence of the cold air on the temperature detecting means 75 provided above is eliminated, and the inside of the refrigerator can be maintained at an appropriate temperature. The same effect as described above can be obtained by providing a protrusion corresponding to the shielding plate 70f on the upper part of the discharge part 70b so as to be inclined downward toward the front.
[0059]
A ceiling duct 54 is formed on the ceiling of the refrigerator compartment 11 by the upper plate 43 made of a resin molded product and the inner box 2b. The ceiling ducts 54 are arranged side by side on the left and right, and communicate with the central passage 28a. The cool air passing through the central passage 28a is diffused left and right by a rib 70g formed on the back plate 70 and guided to the ceiling duct 54.
[0060]
The plurality of ceiling outlets 43a provided in the front-rear direction of the upper surface plate 43 can distribute cold air in a dispersed manner to the left and right. Since the cool air passing through the central passage 28a is diffused right and left before flowing into the ceiling duct 54, the cool air is sufficiently discharged from the ceiling discharge port 43a provided at a position close to the back plate 70 of the refrigerator compartment 11. Therefore, cool air falls from the whole area of the ceiling of the refrigerator compartment 11, which helps to make the temperature in the refrigerator uniform. An illuminating lamp 51 is provided between the left and right ceiling ducts 54 and covered with a transparent illuminating cover 53.
[0061]
Further, the member 42 covers a large area on the back surface of the refrigerator compartment 11 and serves as a reflector of the illumination lamp 51. Illuminate the area. Further, since the temperature detecting means 75 is located at a place other than the member 42, the member 42 can be sufficiently wide without any missing part, and the effect as the reflector can be sufficiently obtained.
[0062]
If the ceiling duct 54 is formed of the same material as the member 42 (for example, a heat conducting member), cooling from the entire area of the ceiling duct 54 on the refrigerator room 11 side to the inside of the refrigerator by the cooling effect is performed. It is clear that the temperature in the refrigerator can be more uniform and the effect as a light reflecting plate can be obtained.
[0063]
In the refrigerator 1 having the above-described configuration, the temperature in the freezer compartment 13 rises, and the temperature detected by the temperature detecting means (not shown) provided in the freezer compartment 13 exceeds a predetermined temperature (for example, −18 ° C.). At this time, when the compressor 20 and the blower 22 are driven by the control device 1b, the air in the freezing room 13 is guided from the return port 13b to the cool air passage 23. The air is cooled by exchanging heat with the cooler 21 and flows into the freezing compartment 13 through the discharge port 13a. Thereby, the inside of the freezer compartment 13 is cooled to a predetermined temperature.
[0064]
Further, when the temperature inside the refrigerator compartment 11 rises and the temperature detected by the temperature detecting means 75 provided on the back of the refrigerator compartment 11 exceeds a predetermined temperature (for example, 5 ° C.), When the blowers 26 and 29 are driven by the control device 1b, the air in the vegetable compartment 12 is guided to the cool air passage 27 from the return port 12b. The air exchanges heat with the cooler 25 and is cooled to generate cool air. Part of the cool air flows into the ice warming chamber 14 through the openings 35a and 36a. Thereby, the inside of the ice greenhouse 14 is cooled to, for example, -1 ° C.
[0065]
The other cool air branches off into the central passage 28a and the side passage 28b and proceeds. The cool air passing through the side passage 28b is guided by the rib 70d and is discharged from the discharge portion 70b into the refrigerator compartment 11. The cool air passing through the central passage 28a is mixed with the air in the refrigerating room 11 guided from the opening 41a to the central passage 28a. Then, the air passes through the ceiling duct 54 and is discharged from the ceiling outlet 43a.
[0066]
In addition, a part of the cool heat generated by the cool air flowing through the central passage 28a is transmitted to the member 42, and is discharged as cool heat from the entire surface including the front surface of the side passage 28b to the refrigerator compartment 11. Therefore, the inside of the refrigerator compartment 11 is efficiently and uniformly cooled by the cool heat from the member 42 and the cool air dispersed and discharged from the discharge part 70b and the ceiling discharge port 43a.
[0067]
The air in the refrigerator compartment 11 passes between the shelves 45 and the front of the shelf 45, flows through the cool air passage 30 from below the ice temperature chamber 14 through the opening 32a, and flows into the front of the vegetable compartment 12. Further, the inside of the vegetable compartment 12 is cooled down from the front of the storage container 54. Then, the cool air circulates from the return port 12b to the lower part of the cooler 25.
[0068]
In addition, if a filter is provided near the opening 32a and the return ports 12b and 13b in the same manner as the filter 41b in FIG. 1, the cool air flowing into the vegetable compartment 12 and the coolers 21 and 25 receives the effect of the filter and is related. The possibility that dust and mold spores and fungi invading from the outside adhere to the cold air passage, the vegetable compartment 12 and the coolers 21 and 25 is reduced, and the odor and mold spores and fungi may cause an odor. And a more sanitary refrigerator can be obtained.
[0069]
Then, the control device 1b controls the compressor 20 and the blower 26 to start and stop based on the detection result of the temperature detecting means 75, and keeps the temperature of the refrigerator compartment 11 and the vegetable compartment 12 at a temperature of about 3 ° C., for example. It is supposed to be.
[0070]
Further, when the temperature detected by the temperature detecting means 75 exceeds a predetermined temperature (for example, 5 ° C.), the compressor 20 and the blowers 26 and 29 are operated, and the cool air cooled by the cooler 25 When the refrigerator compartment 11 and the vegetable compartment 12 are cooled and reach a predetermined detection temperature (for example, 1 ° C.) by the temperature detection means 75, the compressor 20 and the blowers 26 and 29 are stopped.
[0071]
After that, when the temperature detection means 75 reaches a predetermined detection temperature (for example, 3 ° C.), the control device 1b controls one or both of the blowers 26 and 29 to operate while the cooling by the cooler 25 is stopped. The cool air accumulated in the member 42 cools the cool air passing through the central passage 28a, and the cool air cools the refrigerating room 11, so that the refrigerating room 11 can be kept at a low temperature for a long time and the ON- The number of OFF cycles is reduced, and a large amount of power consumption at the time of starting the compressor 20 can be reduced, leading to energy saving.
[0072]
Further, by the operation of the blower 29, the air in the refrigerator compartment 11 is agitated, the cooling air blowing to the storage increases, the cooling efficiency is improved, and the temperature of the cooling air in the refrigerator becomes more uniform. When the blower 26 is operated with the compressor 20 stopped, the cooler 25 can be further defrosted to humidify the inside of the refrigerator compartment 11.
[0073]
According to the present embodiment, it is possible to cool only the freezer compartment 13 by cooling only the cooler 21 by the coolant flow switching means (not shown). By the cooling of the coolers 25 and 21 by the switching means, the refrigerator compartment 11, the vegetable compartment 12, and the freezing compartment 13 are cooled.
[0074]
Further, according to the present embodiment, a part of the cold heat of the cool air passing through the central passage 28a conducts heat through the member 42 functioning as a heat conducting plate, and is discharged into the refrigerator compartment 11 from the entire surface. Therefore, the refrigerating room 11 is uniformly cooled by cold heat uniformly discharged from a wide area covering the central passage 28a and the side passages 28b. Since the temperature detecting means 75 is not located in the member 42, the temperature detecting means 75 is hardly affected by the cold heat, and detects the temperature of the refrigerator compartment 11 more accurately.
[0075]
At this time, much heat is not transmitted to the member 42 from the cool air passing through the side passage 28b by the heat insulating member 28c. For this reason, when a lot of cool air flows into the cool air passage 27, dew condensation of the member 42 and the discharge portion 70b can be prevented, and drying in the refrigerator compartment 11 can be prevented. Then, by changing the area where the heat insulating member 28c is installed, it is possible to circulate cold air at a desired temperature and flow rate.
[0076]
When the temperature of the cool air passing through the cool air passage 28 is lowered or the flow rate of the cool air is increased to increase the cooling capacity, there is a possibility that dew condensation may occur on the refrigerator chamber 11 side of the member 42 near the central passage 28a. A thin heat insulating member may be provided on the member 42 side of the central passage 28a in order to reduce the cooling by the cool air of the member 42.
[0077]
Further, since a plurality of discharge units 70b and ceiling discharge ports 43a are provided on the back and upper surfaces of the refrigerator compartment 11, cold air is dispersed and flows into the refrigerator compartment 11. For this reason, the refrigerator compartment 11 is uniformly and rapidly cooled.
[0078]
The discharge portion 70b may be formed by opening the member 42, but is preferably provided around the outside of the member 42 as in the present embodiment. That is, since it does not open to the front side, firstly, the cool air passage 28 is covered and the aesthetic appearance is improved. Secondly, since the cool air is not directly discharged to the front surface, the noise in the side passage 28b and the sound of the discharge wind at the opening 70a are not directly output to the front, and the noise is reduced.
[0079]
Thirdly, since the member 42 has no opening for discharging cold air or detecting temperature, the entire surface of the member 42 contributes to uniform discharge of cold heat, and the temperature inside the refrigerator becomes more uniform. Even if it is used as a light reflecting surface, it is possible to obtain an effect that it can be used in a wide range without unevenness.
[0080]
Further, the member 42 facing the central passage 28a is directly transmitted with cold heat by cold air, while the member 42 facing the side passage 28b is transmitted with cold heat from the central passage 28a. For this reason, the released cold heat slightly decreases in the side passage 28b, and the temperature inside the refrigerator compartment 11 varies.
[0081]
When the discharge section 70b is disposed on the central passage 28a, for example, the temperature variation becomes larger. In the present embodiment, the discharge section 70b is disposed between the rib 28d forming the side wall of the central passage 28a and the side wall of the refrigerator compartment 11. Almost in the center. Thereby, the area including the front of the side passage 28b and the vicinity of the side wall of the refrigerator compartment 11 is cooled by the cool air from the discharge section 70b, so that the temperature variation is reduced and the cooling is performed by more uniform cooling heat release. be able to.
[0082]
Further, the member 42 has a maximum size in consideration of the arrangement of the discharge portions 70b, and the inside of the refrigerator compartment 11 can be cooled more uniformly by discharging the cool air from both the discharge portions 70b and discharging the cold heat from the member 42. .
[0083]
Alternatively, the member 42 may be a cold storage member in which a jelly-like or liquid cold insulator 42a as shown in FIG. 6 is enclosed by packaging materials 42b and 42c. By doing so, the member 42 is stored more cold by the cool heat of the cool air flowing through the cool air passage 28, and is discharged as cool heat according to the temperature distribution in the refrigerator compartment 11. Therefore, the refrigerator compartment 11 is cooled uniformly.
[0084]
Further, the cool storage member absorbs heat and dissipates heat when the compressor 20 is stopped or when the temperature of the cool air in the cool air passage 28 fluctuates, so that the cool air temperature in the cool air passage 28 can be maintained. At this time, since the cold storage member forms the inner wall of the refrigerator compartment 11, the space of the refrigerator compartment 11 can be enlarged, and the space of the refrigerator 1 can be saved. It is more desirable that the packaging materials 42b and 42c be made of a thermally conductive aluminum alloy or stainless steel.
[0085]
The cool air generated at a low temperature by the cooler 25 is slightly heated by mixing with the air in the refrigerator compartment 11. Thereby, dew condensation and icing generated near the member 42 and the ceiling discharge port 43a can be further prevented, and drying of the refrigerator compartment 11 and the vegetable compartment 12 can be prevented.
[0086]
Further, by providing a cooler 25 for cooling the refrigerator compartment 11 and the vegetable compartment 12 and a cooler 21 for cooling the freezer compartment 13, the temperature of the cool air flowing through the cool air passages 27 and 28 is reduced by the temperature of the cool air in the cool air passage 23. Can be set higher. Thereby, dew condensation and icing generated on the member 42 can be further prevented.
[0087]
The member 42 is erected on the back of the refrigerator compartment 11 and extends vertically. For this reason, even when the temperature and humidity in the refrigerator compartment 11 are extremely increased when the number of times of opening and closing of the heat insulating door 3 is large, even if dew is formed on the member 42 and water droplets are generated, they do not drop directly on the storage. Therefore, it is possible to maintain a good storage state without damaging the stored material.
[0088]
At this time, when the blowing of the cool air in the cool air passage 28 cooled by the cooler 25 is stopped, the temperature of the member 42 approaches the inside of the refrigerator compartment 11 and the inside of the refrigerator compartment 11 dries due to the temperature rise. As a result, some of the water droplets evaporate while flowing down the member 42 and the back plate 35. Therefore, the humidity in the refrigerator compartment 11 can be increased again.
[0089]
Further, if a porous (for example, an oval hole, a round hole, etc.) fence-shaped protective wall is provided in front of the member 42, the member 42 can be made thinner, so that the effect of releasing cold heat is improved, and It will also prevent sticking and breakage.
[0090]
Next, FIG. 9 is a side sectional view showing a refrigerator of a second embodiment. For convenience of description, the same parts as those in the first embodiment of FIGS. 1 to 4 are denoted by the same reference numerals.
[0091]
The refrigerator 1 is provided with an inner box 2b inside an outer box 2a covering the outside, and a gap between the outer box 2a and the inner box 2b is filled with a heat insulating material 2c such as urethane foam. An electrical box 1a includes a control device 1b for controlling the operation of the refrigerator 1, and the control device 1b is electrically connected to respective electric components of the refrigerator 1 described later. The interior of the refrigerator 1 is divided into a refrigerator compartment 11, a vegetable compartment 12, and a freezer compartment 13 in this order from above.
[0092]
The vegetable compartment 12 and the freezing compartment 13 are partitioned by a partition frame 17 made of a heat insulating member and a partition plate 19 made of a thermal insulating member. The freezing compartment 13 is further partitioned into an upper portion and a lower portion by a partition frame 18 made of a heat insulating member. . The refrigerator compartment 11 and the vegetable compartment 12 are partitioned by a partition frame 16 made of a heat insulating member and partition plates 31 and 32 made of a resin molded product. The partition plate 32 is provided with a through hole 32a.
[0093]
At the lower part of the refrigerating room 11, an ice temperature room 14, which is an isolation room partitioned by a partition plate 46, is provided. The refrigerator compartment 11 is provided with a plurality of shelves 45. The front surface of the refrigerating compartment 11 can be opened and closed by a rotary heat insulating door 3. The vegetable compartment 12, the upper part of the freezer compartment 13, and the lower part of the freezer compartment 13 can be opened and closed by sliding heat insulating doors 4, 5, and 6, respectively, so that the storage containers 54, 55, and 56 can be drawn out. ing.
[0094]
A compressor 20 is arranged at the rear of the freezer compartment 13. A condenser (not shown) is connected to the compressor 20 via a discharge pipe 20a, and a cooler 21 is connected via a suction pipe 20b. The condenser and the cooler 21 are connected via a capillary tube (not shown).
[0095]
Thus, a refrigeration cycle is configured, and when the refrigeration cycle operation is performed, the cooler 21 is cooled. A defrost heater 62 for defrosting the cooler 21 is provided below the cooler 21. 64 is a drain receiving member.
[0096]
The cooler 21 is disposed in the cool air passage 23, and a lower portion of the cool air passage 23 is formed by the inner box 2b and the evaporative cover 33 made of a resin molded product. A blower 22 is arranged above the cooler 21 in the cool air passage 23. The cool air passage 23 communicates with the freezing compartment 13 through discharge ports 13a and 13c provided in the back plate 33a and a return port 13b provided in the return port cover 33b.
[0097]
The back of the vegetable compartment 12 is covered by the above-mentioned partition plate 19, and the pressure chamber 23 a above the cold air passage 23 is formed by the evaporator cover 33 and the partition plate 19. The partitioning plate 19 made of a heat insulating member prevents the vegetable compartment 12 provided near the cooler 21 from being overcooled.
[0098]
The cool air passage 23 communicates with the cool air passage 28 disposed above the blower 22 via a damper 65. The lower part of the cool air passage 28 is formed by the heat insulating member 36 fixed to the back plate 35 of the ice temperature chamber 14 and the inner box 2b. As shown in FIG. 10, openings 35a and 36a are provided at the same position in the back plate 35 and the heat insulating member 36. The ice temperature chamber 14 communicates with the cool air passage 28 by the openings 35a and 36a.
[0099]
The cool air passage 28 is branched by a rib 28d into a central passage 28a disposed substantially at the center and side passages 28b provided on both sides of the central passage 28a. The rib 28d is formed integrally with a back plate 70 described later.
[0100]
The upper portion of the cold air passage 28 is formed by a member 42 forming the inner wall of the refrigerator compartment 11 and a back plate 70 provided on the inner box 2b. The member 42 is formed of a heat conductive member having heat conductivity, such as an aluminum alloy or stainless steel, as in the first embodiment.
[0101]
In the refrigerating room 11, similarly to FIG. 4 described above, a heat insulating member 28c is arranged on the inner surface of the member 42 that covers the side passage 28b so as to prevent much of the cold heat of the cool air passing through the side passage 28b from being transmitted to the member 42. ing. The side wall of the side passage 28b is formed by the back plate 70, and the side wall is provided with a plurality of openings 70a.
[0102]
On the back plate 70, a wall surface portion 70c that covers the outer periphery of the member 42 is formed. A plurality of discharge portions 70b communicating with the opening 70a are recessed in the wall surface portion 70c. Therefore, the side passage 28b communicates with the refrigerating room 11 by the discharging part 70b and the opening 70a, so that the cool air can be discharged to the refrigerating room 11.
[0103]
The wall surface portion 70c is formed near the same height as the shelf 45 placed on the placing portion 74, so that food or the like placed on the shelf 45 does not drop to the discharge portion 70b. Further, a rib 70d for guiding cool air to the discharge portion 70b is formed on the back plate 70. The opening 70a is formed in a slit shape so that the stored material does not fall into the side passage 28b. Note that, in FIG. 10, the shelf 45 and the partition plate 46 are drawn by two-dot chain lines in order to make them easy to see behind.
[0104]
The refrigerator compartment 11 is divided into a plurality of sections by the shelf 45, and the temperature detecting means 75 is provided above the discharge section 70b in the section from the center in the vertical direction. The temperature detecting means 75 is made of, for example, a thermistor. The temperature detecting means 75 is mounted near (the inner box 2b side).
[0105]
A ceiling duct 54 is formed on the ceiling of the refrigerator compartment 11 by the upper plate 43 made of a resin molded product and the inner box 2b. The ceiling ducts 54 are arranged side by side on the left and right, and communicate with the central passage 28a. The cool air passing through the central passage 28a is diffused left and right by a rib 70g formed on the back plate 70 and guided to the ceiling duct 54.
[0106]
Then, the cool air can be discharged in a dispersed manner to the left and right by a ceiling discharge port 43a provided in the upper surface plate 43. An illumination lamp 51 covered with a transparent illumination cover 53 is provided between the left and right ceiling ducts 54.
[0107]
In the refrigerator 1 having the above-described configuration, the temperature in the freezer compartment 13 rises, and the temperature detected by the temperature detecting means (not shown) provided in the freezer compartment 13 exceeds a predetermined temperature (for example, −18 ° C.). At this time, when the compressor 20 and the blower 22 are driven by the control device 1b, the air in the freezing room 13 is guided from the return port 13b to the cool air passage 23. The air is cooled by exchanging heat with the cooler 21 and flows into the freezing compartment 13 through the discharge ports 13a and 13c. Thereby, the inside of the freezer compartment 13 is cooled to a predetermined temperature.
[0108]
When the temperature inside the refrigerator compartment 11 rises and the temperature detected by the temperature detecting means 75 provided on the back of the refrigerator compartment 11 exceeds a predetermined temperature (for example, 5 ° C.), the controller 1b When the compressor 20 and the blower 22 are driven to open the damper 65, the cool air that has exchanged heat with the cooler 21 flows through the cooling passage 28 through the damper 65, and a part of the cool air is It flows into the ice greenhouse 14 from 35a, 36a. Thereby, the inside of the ice greenhouse 14 is cooled to, for example, -1 ° C.
[0109]
The other cool air branches off into the central passage 28a and the side passage 28b and proceeds. The cool air passing through the side passage 28b is guided by the rib 70d and is discharged from the discharge portion 70b into the refrigerator compartment. The cool air passing through the central passage 28a passes through the ceiling duct 54 and is discharged from the ceiling discharge port 43a.
[0110]
In addition, a part of the cool heat generated by the cool air flowing through the central passage 28a is transmitted to the member 42, and is discharged as cool heat from the entire surface including the front surface of the side passage 28b to the refrigerator compartment 11. Therefore, the inside of the refrigerator compartment 11 is efficiently and uniformly cooled by the cool heat from the member 42 and the cool air dispersed and discharged from the discharge part 70b and the ceiling discharge port 43a.
[0111]
The air in the refrigerator compartment 11 passes between the shelves 45 and the front of the shelf 45, flows through the cool air passage 30 from below the ice temperature chamber 14 through the opening 32a, and flows into the front of the vegetable compartment 12. Further, the inside of the vegetable compartment 12 is cooled down from the front of the storage container 54. Then, cool air is circulated from an outlet (not shown) through a duct (not shown) to the lower part of the cooler 21. The damper 65 opens and closes in accordance with the temperature of the refrigerator compartment 11 detected by the temperature detecting means 75 similar to that in FIG. 2, and the temperature of the refrigerator compartment 11 and the vegetable compartment 12 is maintained at, for example, 3 ° C.
[0112]
According to the present embodiment, similarly to the first embodiment, the member 42 functions as a heat conductive plate that conducts a part of the cold heat of the cool air passing through the central passage 28a and discharges the cooled heat into the refrigerator compartment 11. Therefore, the refrigerator compartment 11 is uniformly cooled by the cool heat uniformly discharged from a wide area.
[0113]
At this time, much of the cold heat is not transmitted to the member 42 from the cool air passing through the side passage 28b by the heat insulating member 28c. For this reason, even if a large amount of cool air flows through the cool air passage 27, dew condensation does not occur on the member 42 and the discharge portion 70b. By varying the area in which the heat insulating member 28c is installed, it is possible to flow cold air at a desired temperature and flow rate.
[0114]
Further, by providing the discharge portion 70b around the outside of the member 42, it is possible to improve aesthetic appearance, prevent noise, uniformly discharge cold heat from the entire surface, and use the light reflection surface in a wide range. And since the discharge part 70b is arrange | positioned in the substantially center between the rib 28d which comprises the side wall of the central passage 28a, and the side wall of the refrigerator compartment 11, temperature variation is reduced and more uniform cooling can be performed. The member 42 may be a cold storage member as shown in FIG.
[0115]
When the blower 29, the blower cover 41, the filter 41b, and the like shown in FIG. 3 described above are provided in the central passage 28a of the present embodiment, the cool air in the refrigerator compartment 11 and the cool air passing through the central passage 28a are mixed, and the first embodiment The same effect as described above can be obtained.
[0116]
Since the temperature detecting means 75 and the shielding rib 70f are provided above the discharge portion 70b around the member 42, the member 42 can be provided in a wide area without an opening for discharging cold air or detecting temperature. The entire surface of the member 42 serves to uniformly emit cold, the temperature inside the refrigerator becomes uniform, and the light can be used evenly and widely as a light reflection surface. It is difficult to produce the effect of the cool air discharged into the refrigerator, the temperature in the refrigerator can be accurately detected, and a refrigerator capable of keeping the refrigerator at a more appropriate temperature can be obtained.
[0117]
Further, since the temperature detecting means 75 has the longitudinal direction in the left-right direction, the area in the vertical direction of the temperature detecting means 75 can be small, the area where the discharge port is located can be widened, and the opening 70a and the discharge 70b is provided, and furthermore, the inside temperature is made uniform, and the upper wall surface portion of the discharge portion 70b which communicates with the opening portion 70a is formed so as to be slightly inclined so as to be lower toward the discharge portion 70b side. If this is done, the discharged cool air will flow downward, and further, the cool air will have no effect on the temperature detecting means 75 provided above, and the inside of the refrigerator can be kept at a more appropriate temperature.
[0118]
In FIG. 11, this drawing is a view of the filter 41b viewed from the refrigerator compartment 11 side. The filter 41b is formed by bonding a corrugated member 41g and a vertical member 41h to each other to form a tunnel, and has a predetermined size. In this case, the outer periphery of a member formed to have a height (for example, 90 mm in length × 80 mm in width) is covered with an outer peripheral member 41i, adhered, and cut into a predetermined thickness (for example, 4.5 mm).
[0119]
The filter 41b is obtained by fixing hydroxyapatite (Ca10 (PO4) 6 (OH) 2) having antibacterial properties and virus adsorbing property to a pulp-based nonwoven fabric. Further, a porous portion is formed in the hydroxyapatite, and the porous portion has a function of adsorbing odor molecules (for example, ammonia, nitrogen dioxide, etc.) similar to activated carbon and the like.
[0120]
Therefore, when cold air in the refrigerator passes through the filter 41b, the contact area of the cold air in the path further increases due to the antibacterial and deodorizing functions made of a porous material, and the fungi proliferate more due to the antibacterial property and the virus adsorption property. It can prevent bacteria in the refrigerator and deodorize cold air inside the refrigerator, reducing the possibility of dust and mold spores, fungi and odors adhering to the walls and circulation passage surfaces in the refrigerator, and reducing dust and mold spores and fungi. The possibility of generating offensive odors due to the proliferation of odors is reduced, and a more sanitary refrigerator can be obtained.
[0121]
Although the above description was made by fixing hydroxyapatite to a nonwoven fabric made of pulp in the filter 41b, a resin material such as polyethylene may be used as the base material, and carbon fibers may be used as the deodorant, or activated carbon may be used. Or a mixture of silicon oxide and manganese oxide or the like wrapped in a nonwoven fabric, or other low-temperature deodorants may be used.As an antibacterial agent, silver zeolite or copper fiber may be used. The same effects as described above can be obtained by adding those functions to the filter 41b and members near the filter 41b (for example, providing another filter; the heat insulating member 41c and the blower cover 41).
[0122]
When a humidity control material (for example, porous silica material, silica gel, sodium polyacrylate, or the like) is added to the filter 41b or a member in the vicinity thereof (for example, a separate filter is provided. The heat insulating member 41c or the blower cover 41). In addition, a humidity control effect is produced by the adsorption and release of moisture and the like, and the humidity of cold air in the refrigerator can be further controlled.
[0123]
Further, the filter 41b has a path connecting the refrigerator compartment 11 side and the blower 29 side which is a circulating blower, and is a filter composed of a corrugated tunnel having an opening on each side of the path. The contact area of the passing cold air in contact with the filter surface is increased, and the effect of the filter is further increased. Further, since the filter 41b is a corrugated tunnel, the strength is further increased, and the blower 29 is connected to the filter 41b. Even when the fan 41 is provided close to the air conditioner, when the blower 29 is operated, there is less fear that the filter 41b is attracted to the blower 29.
[0124]
Further, in this figure, the corrugated material 41g is adhered to the vertical member 41h in a state where the corrugated material 41g is sequentially translated in the left-right direction. It moves in parallel in the left-right direction, and sandwiches the vertical member 41h from the left and right at the same position (the vertices of the peaks and valleys of the adjacent corrugated members 41g contact the vertical member 41h at the same position in the vertical direction). When bonded together, the strength is further increased.
[0125]
In the filter 41b, when the passage of the cool air composed of the corrugated member 41g and the vertical member 41h is vertically inclined in the front-rear direction, the length of the passage further increases, and the passage of the cool air passes through the passage. The contact area of the cold air contacting the filter surface is further increased, and the effect of the filter is further increased.
[0126]
In addition, if the filter 41b is inclined upward as it advances toward the blower 29 when viewed from the left and right directions, even if water droplets or the like enter from the inside of the refrigerator, the water droplets may fall through one corrugated opening due to surface tension. If the amount of water is not obstructed, the refrigerator can be drained forward by its own weight or stay there, so that moisture does not enter the inside of the filter 41b, and furthermore, a refrigerator in which the effect of the filter 41b continues for a long period of time can be obtained.
[0127]
Then, the inclination is close to an angle along the cold air flow so as to head toward the blower 29 (for example: simply, an angle close to the rotation axis of the propeller fan of the blower 29; toward a suction port in a centrifugal fan). Angle (in the case of a cross flow fan, an angle parallel to the main flow toward the vortex), it also serves as a guide for the blower 29, and the blowing efficiency is further improved.
[0128]
The shape of the opening of the cold air passage of the filter 41b is corrugated. However, even if the shape of the opening is polygonal (for example, square or hexagonal), the shape of a substantially circular group (for example, straw- (Bundled, adhered, and cut to a predetermined thickness.), And the same effect as described above can be obtained as long as it is a tunnel-like passage route.
[0129]
Furthermore, the filter 41b is formed into a single sheet having the shape of the opening of the cold air passage, and is wound in a roll with the direction parallel to the cold air passage as an axial direction. It may be adhered so as not to break and cut into a predetermined thickness.
[0130]
12, FIG. 12 is a view of the filter 41b shown in FIG. 11 as viewed from above, where 41j is the front side of the filter on the refrigerator compartment 11 side, 41k is the back side of the filter on the blower 29 side, The center of the front side 41j protrudes forward (inside the refrigerator).
[0131]
Therefore, even when the blower 29 is operated and the force for attracting the filter 41b to the blower 29 due to the ventilation resistance of the filter 41b acts, the deformation stress in the filter 41b is dispersed to the left and right, and the left and right ends of the filter 41b are separated. Is supported at the left, right, rear, and rear, and the deformation stress is overcome by the substantially arch-like effect, and deformation is avoided.
[0132]
Therefore, even if the blower 29 is provided close to the filter 41b, when the blower is operated, there is less fear that the filter 41b is sucked to the blower by the substantially arched effect and is damaged.
[0133]
The shape of the center of the filter 41b protruding forward (inside the refrigerator) is not limited to a substantially arched shape, and may be a mountain-like shape such as a letter V or an elliptical shape. If it protrudes forward, the same effect as described above can be obtained.
[0134]
Further, in order to prevent the filter 41b from being damaged, a permeable guard may be provided between the filter 41b and the blower 29.
[0135]
Further, the first and second embodiments are examples in which the cool air passage 28 is branched into three parts of a central passage 28a and two side passages 28b, but the cool air passage 28 is divided into four or more branch passages. The same effect can be obtained even when a heat insulating material is provided at an appropriate position in accordance with the amount of cold air supplied by branching. For example, the cold air passage 28 is divided into five sections, and a heat insulating member is provided in the same manner as described above except for the central portion. Then, of the two passages on the left and right sides, the cool air that rises through the central passage may be lowered through the outer passage and discharged into the refrigerator compartment 11.
[0136]
Further, in FIG. 3, the cool air passage leading to the suction side of the blower 29 from the cool air passage 27 is blocked so that the cool air from the cool air passage 27 does not flow into the central passage 28 a, and the circulation of the cool air in the refrigerator by the blower 29 is simply performed. The flow is generated through the central passage 28a, and in addition to the above structure, the thickness of at least a part of the heat insulating member 28c in FIG. 4 is reduced or eliminated, or a combination thereof is used. Even if the supply amount of a part of the cold heat from the cold airflow in the passage 28b to the refrigerator compartment 11 is increased, the above-described respective effects can be obtained in the same manner. The same applies to the case where the blower 29 or the like as shown in FIG. 3 is provided at the same position in FIG.
[0137]
Further, the ice temperature chamber 14 may be an isolation chamber of another temperature zone (for example: partial room = -3 ° C., vegetable room = 3 ° C.) by adjusting the amount of cold air.
[0138]
In the present invention, when a part of the cold heat due to the cool air passing through the cool air passage is released into the storage chamber via the member, a part of the cool air passing through the cool air passage absorbs heat from the member to cool the member, This means that the member absorbs heat from the storage chamber and cools the storage chamber.
[0139]
In addition, the left-right direction means the left-right direction when the refrigerator is viewed from the front, and the front-rear direction means the front-back direction when the refrigerator is viewed from the front.
[0140]
【The invention's effect】
According to the present invention, it becomes easier for cool air to flow around the back wall side center of the storage room, and the circulation of cool air inside the warehouse is further improved, so that the inside of the warehouse is cooled more uniformly, and furthermore, near the suction port. The filter also removes dust and mold spores and fungi in the warehouse that have invaded from the outside, reducing the possibility that the dust and mold spores and fungi will adhere to the walls and circulation passage surfaces in the warehouse, The possibility of generation of off-flavor due to the proliferation of dust and mold spores and fungi is reduced, and a sanitary refrigerator can be obtained.In addition, a part of the cool air cooled by the cooler also flows to the circulation passage part, and a part of the cool heat of the cool air passing through the cool air passage is further transmitted to a member having a large area including a cold storage member and a heat conduction member. Since the refrigerator is discharged from the entire surface into the inside of the refrigerator, a refrigerator can be obtained in which the inside of the refrigerator is more uniformly cooled by cold heat uniformly discharged from a wide area. In addition, since a separating wall and a heat insulating material for separating the cool airflow from the filter are provided, the risk of the cool air flowing out to the blower cover side or the inside of the refrigerator is reduced, and the dew condensation around the blower cover is prevented. In addition, a sanitary refrigerator capable of preventing local overcooling due to cold air outflow and freezing of stored products due to the overcooling can be obtained.
[0141]
Further, according to the present invention, since the suction port is provided below the circulation passage, the circulation of the cool air in the refrigerator that has passed through the filter is further improved, and the cool air is more uniform near the center of the back wall side of the storage room. Because it is easier to turn around, the inside of the warehouse is cooled more evenly, and the filter near the suction port also removes dust and mold spores and fungi from the inside of the warehouse, and the inside wall of the warehouse And the surface of the circulation passage are less likely to adhere to the dust and mold spores and fungi, and the likelihood of off-odor generation due to the proliferation of dust and mold spores and fungi is reduced, and a sanitary refrigerator is obtained. .
[0142]
According to the present invention, a part of the cold heat of the cool air passing through the cool air passage is transmitted to a member having a large area including a cold storage member and a heat conduction member, and is discharged into the inside of the refrigerator from the entire surface. It is cooled more evenly by the cold heat uniformly discharged. Moreover, since the suction port is provided below the circulation passage, the circulation of the cool air in the refrigerator that has passed through the filter is further improved, and the cool air can be more easily even around the center of the back wall side of the storage room. The interior of the refrigerator is cooled evenly, and the filter near the suction port removes dust, mold spores, fungi, etc. in the refrigerator from the outside. The possibility that the dust and mold spores and fungi adhere is reduced, and the possibility of generation of off-flavor due to the proliferation of dust and mold spores and fungi is reduced, so that a sanitary refrigerator can be obtained.
[0143]
Further, according to the present invention, even if the blower is provided close to the filter, a refrigerator can be obtained in which when the blower is operated, the filter is less likely to be sucked and damaged by the blower due to the substantially arched effect.
[0144]
Furthermore, according to the present invention, a tunnel-shaped filter having a path connecting the inside of the refrigerator and the circulating blower side, and having an opening on each side of the path, comes into contact with the filter surface of the cool air passing through the path. Even if the contact area is increased, the effect of the filter is further increased without significantly increasing the ventilation resistance of the filter, and the strength is further increased because the filter is in a tunnel shape, and the circulating blower is brought closer to the filter. Even when the fan is provided, a refrigerator can be obtained in which, when the blower is operated, there is less concern that the filter will be attracted to the blower.
[0145]
Furthermore, according to the present invention, since the tunnel-like path of the filter is inclined, the filter surface is further increased without increasing the thickness of the filter, and the effect of the filter is further increased without significantly increasing the ventilation resistance of the filter. Refrigerator is obtained.
[0146]
Moreover, according to the present invention, since the inclination of the tunnel-like path of the filter becomes higher toward the rear, even if water drops enter the filter from the inside of the refrigerator, it flows out forward and the effect of the filter continues for a long time. Is obtained.
[0147]
In addition, according to the present invention, antibacterial, humidity control and deodorization functions prevent the growth of fungi, and provide a humidity control effect and deodorization effect due to adsorption and release of moisture, etc. The possibility of dust and mold spores, fungi and odors adhering to the walls and circulation passage surfaces in the refrigerator is reduced, and the possibility of generation of off-flavor due to the proliferation of dust and mold spores and fungi is reduced. A more sanitary refrigerator is obtained.
[0148]
Further, according to the present invention, the porous substance has an effect of adsorbing odors and the like and an effect of adsorbing and releasing moisture, and further increases the contact area of cold air in the passage section, and the above effect is increased. With the addition of antibacterial, humidity control and deodorizing functions consisting of quality, the contact area of cold air in the passage section further increases, further preventing the growth of fungi, and the moisture control effect and deodorization effect by absorbing and releasing moisture etc. occur , Cold air in the refrigerator, humidity control and deodorization can be performed, and the possibility of dust and mold spores, fungi and odors adhering to the walls and the circulation passage surface in the refrigerator is reduced. The possibility of generation of off-flavor due to fungal growth is reduced, and a more sanitary refrigerator can be obtained.
[0149]
According to the present invention, by providing a waterproofing means and a draining means, water generated around the filter due to dew condensation or the like is eliminated from the periphery of the filter, and when a porous substance is contained, Since a large amount of water does not penetrate into the quality part to lower its function, it is possible to obtain a refrigerator in which each of the functions continues for a long period of time.
[0150]
Further, according to the present invention, since a gap is provided between the filter and the blower cover, the cool air flowing from the cover flows into the entire surface of the filter, and not only the effect of the filter is further increased, but also the blower due to condensation or the like. Since the moisture generated around the cover does not enter the filter portion to lower its function, a refrigerator in which each function continues more effectively for a long time can be obtained.
[0151]
Further, according to the present invention,The cool air falls from the ceiling, and the temperature in the refrigerator becomes uniform.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a refrigerator according to a first embodiment of the present invention.
FIG. 2 is a front view of a refrigerator room of the refrigerator according to the first embodiment of the present invention.
FIG. 3 is a detailed view of a main part of the refrigerator according to the first embodiment of the present invention.
FIG. 4 is a top sectional view of the refrigerator according to the first embodiment of the present invention.
FIG. 5 is a perspective view showing members of the refrigerator according to the first embodiment of the present invention.
FIG. 6 is a perspective view showing another member of the refrigerator according to the first embodiment of the present invention.
FIG. 7 is a sectional view of a main part of a member of the refrigerator according to the first embodiment of the present invention.
FIG. 8 is a sectional view of a main part of a member of the refrigerator according to the first embodiment of the present invention.
FIG. 9 is a side sectional view of a refrigerator according to a second embodiment of the present invention.
FIG. 10 is a front view of a refrigerator of a refrigerator according to a second embodiment of the present invention.
FIG. 11 is a view of the filter of the present invention as viewed from the storage room side.
12 is a view of the filter shown in FIG. 11 of the present invention as viewed from above.
[Explanation of symbols]
11 refrigerator room (storage room)
21, 25 Cooler
23, 27, 28, 30 Cold air passage
28a Central passage (circulation passage)
29 blower
41 Blower cover (cover)
41a Opening (suction port)
41b filter
41c Insulation member (isolation wall)
41d Projection (waterproofing means)
41e Projection (waterproof means)
41f hole (drainage means)
42 members
70b discharge unit (discharge port)

Claims (12)

A storage chamber for accommodating the reservoir, and a cooler for generating cool air flowing into the storage compartment, provided a cool air passage for guiding air cold in the storage chamber, cold machine passage, the back wall center of the storage compartment Having a passage provided in the vicinity, having a suction port on the storage room side of the passage, providing a blower in the passage, providing a filter near the suction port in front of the blower ,
Part of the cool air flowing into the storage chamber generated by the cooler flows into the suction side of the blower, and at least part of the filter near the blower side separates the cool air flow from the filter. A refrigerator characterized by providing at least one of a heat insulating member and a separating wall for performing the operation. A storage chamber for accommodating the reservoir, and a cooler for generating cool air flowing into the storage compartment, provided a cool air passage for guiding air cold in the storage chamber, cold machine passage, the back wall center of the storage compartment Having a passage provided in the vicinity, having a suction port on the storage room side below the passage, providing a blower in the passage, providing a filter near the suction port in front of the blower ,
Part of the cool air flowing into the storage chamber generated by the cooler flows into the suction side of the blower, and at least part of the filter near the blower side separates the cool air flow from the filter. A refrigerator characterized by providing at least one of a heat insulating member and a separating wall for performing the operation. A storage room for storing a storage, a cooler that generates cold air flowing into the storage room, a cool air passage provided through the storage room and the partition while guiding the cool air to the storage room, and at least one of the partition walls provided a member which emits cold by cold air forming part flowing through the cool air passage into the storage chamber,
The cold passage has a passage provided in the vicinity of the back wall center of the storage compartment has a suction port on the storage compartment side of the lower of said passage, said the passage provided blower downwardly, forwardly of the blower wherein the filter is provided on the inlet side of,
Part of the cool air flowing into the storage chamber generated by the cooler flows into the suction side of the blower, and at least part of the filter near the blower side separates the cool air flow from the filter. A refrigerator characterized by providing at least one of a heat insulating member and a separating wall for performing the operation. 4. The refrigerator according to claim 1, wherein the center of the surface side of the filter protrudes toward the storage room . 5. The filter has a path connecting the storage compartment side and the blower side, claim 1, characterized in that the tunnel-shaped with an opening in the blower side and the storage compartment side of said path of claim 4 The refrigerator according to any of the above. The refrigerator according to claim 5, wherein the tunnel-like path of the filter is inclined. 7. The refrigerator according to claim 6, wherein the inclination of the tunnel-like path of the filter increases toward the rear. The refrigerator according to any one of claims 1 to 7, wherein at least one of the filter and a member near the filter has at least one of an antibacterial function, a humidity control function, and a deodorizing function. The refrigerator according to any one of claims 1 to 8, wherein at least one of the filter and a member near the filter contains a porous substance. The refrigerator according to any one of claims 1 to 9, wherein at least one of a waterproof unit and a drain unit is provided around the filter. The refrigerator according to any one of claims 1 to 10, wherein the filter has a cover having an opening, and a gap is provided between the filter and the cover. The refrigerator according to any one of claims 1 to 11, wherein an end of the passage is guided to a ceiling duct, and cool air can be discharged from the ceiling discharge port into the storage room .

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