CN1892155A - Refrigerator - Google Patents

Abstract

The present invention provides a refrigerator that can effectively reduce the insulation thickness by arranging the freezing and refrigerating coolers according to the position of the freezing or refrigerating storage space or the insulation wall, and can correspondingly increase the volume of the storage space inside the refrigerator. Moreover, it provides a compact structure by arranging refrigerating and freezing coolers or cooling fans, cold air passages, etc. in consideration of the position of the cooling storage space or the insulation wall, and by effectively disposing the insulation thickness or the passage space can be corresponding A refrigerator that maximizes indoor storage space. The refrigerator is provided with refrigerating and freezing coolers (13, 14) for cooling the refrigerating storage space (11) and the freezing storage space (12) respectively, and fans (15, 16) for circulating cold air in each cooling space. , It is characterized in that the above-mentioned coolers for freezing and refrigeration provided at the back of the storage space are arranged close to each other so as to at least partially overlap each other in the front-rear direction.

Description

refrigerator

technical field

The present invention relates to a refrigerator which has a freezer storage space and a refrigerated storage space, and is provided with a cooler for cooling these spaces and a cold air circulation fan.

Background technique

In refrigerators in recent years, as shown in the vertical cross-sectional view of FIG. 17 , in most cases, the most frequently used and large-capacity refrigerator compartment 55 is arranged at the uppermost part, and an ice-making compartment 56 and a temperature not shown in the figure are arranged side by side below it. In the exchange room, a vegetable room 58 for accommodating vegetables, which is the same refrigerated space as the refrigerating room 55, is provided at its lower part, and a freezing room 59 is arranged at the bottom.

In addition, a cooling cooler 63 and a fan 65 for cooling the refrigerating space are arranged on the back side of the refrigerating room 55, and a cooling space such as the ice making room 56 or the freezing room 59 is arranged at a position corresponding to the back of the vegetable room 58 below. The refrigeration cooler 64 and the fan 66 for freezing, the refrigerant flowing out from the compressor 82 arranged in the machine room of the lower part of the main body alternately flows into the above-mentioned refrigeration and freezing coolers 63 and 64 through the switching valve, and the fans 65 and 66 respectively Cold air generated by being cooled to a predetermined temperature circulates in each storage space.

Since the above-mentioned refrigerating and freezing coolers 63 and 64 are respectively cooled to a low temperature of about -13°C or -30°C, they must be reliably insulated from the atmosphere. A vacuum insulation panel 70 having a predetermined thickness disclosed in Patent Document 1 is arranged in a heat insulating wall 54 formed of a foam heat insulating material such as urethane foam to improve heat insulation performance.

In addition, the refrigerating room 55 closes the front opening with a swing door, and the vegetable room 58, the ice making room 56, the temperature exchange room, and the freezing room 59 are pulled out forward with a drawer door, container and guide rail.

Since the above-mentioned refrigerating and freezing coolers 63 and 64 are respectively cooled to a low temperature of about -13°C or -30°C, each cooler must be reliably insulated from the outside of the refrigerator and the inside of the storage room. The thickness of the insulating wall between them is increased, which correspondingly reduces the problem of the storage volume of food in the storage room under the same shape.

In order to improve the efficiency of the storage volume in the storage room, a vacuum insulation panel 70 of a predetermined thickness with high insulation performance is usually placed on the insulation wall 54 formed of a foam insulation material such as urethane foam. The thickness of the thermal wall is used to increase the storage capacity (refer to Patent Document 1).

[Patent Document 1] Japanese Patent Laid-Open No. 2005-69448

However, the above-mentioned vacuum insulation panel 70 is very expensive compared with the foam insulation material, and the cooler 63 for refrigeration and the cooler 64 for freezing are separately arranged in a state of being separated up and down like the above-mentioned conventional refrigerator. In the case of the back of the refrigerator compartment 55 on the upper part of the main body and the vegetable compartment 58 on the lower part, in order to cover the two coolers 63, 64, at least the vacuum insulation panel 70 must be arranged to cover the entire back, which has a large size and high manufacturing cost. high question. In addition, if the vacuum insulation panel is arranged separately up and down, the vacuum insulation panel is two parts, which is expensive, and complicated manufacturing and assembling processes are added, which unavoidably increases the cost as described above.

And because as shown in Fig. 18, arrange the cooler 64 for refrigerating with lower temperature at the back of the vegetable compartment 58 with above-mentioned high set temperature, in order to prevent the temperature from heat leakage caused by the large temperature difference between the two Influenced by the effect, the front cover 68 with thick heat insulation thickness is arranged on the indoor side, and the heat insulation wall 54 on the outdoor side is added, and the heat insulation thickness becomes thicker, so there is a shortcoming of correspondingly reducing the storage volume in the refrigerator.

Moreover, not only is the price of the above-mentioned vacuum insulation panel 70 very high compared with the foam material, but also the installation of the vacuum insulation panel may not necessarily solve the above-mentioned problems, especially in the refrigerator room 55 that requires the largest capacity, the rear of the room The thickness dimension occupied by the configured cooler 63 and the heat insulating material plus the entire rear wall of the channel is an invalid volume, which still greatly reduces the effective volume capable of accommodating food.

And because the cooler 64 for refrigerating with lower temperature is arranged at the back of the vegetable compartment 58 with high set temperature, therefore in order to make the temperature not affected by the heat leakage caused by the large temperature difference between the two, it is necessary to install it indoors. Thicker heat insulation material is provided on the side, and the heat insulation wall 54 on the outdoor side is added, and the heat insulation thickness becomes thicker, so there is a shortcoming of correspondingly reducing the storage volume in the refrigerator.

Contents of the invention

In view of the above circumstances, the present invention aims to provide a refrigerator that effectively reduces the thickness of insulation by arranging coolers for freezing and refrigeration according to the position of the freezing or refrigerating storage space or the insulation wall, and can increase the thickness accordingly. The volume of the storage space inside the refrigerator.

Furthermore, the present invention is in view of the above circumstances, and an object is to provide a refrigerator which is compact in structure by arranging coolers for refrigeration and freezing, cooling fans, cold air passages, etc. in consideration of the position of the cooling storage space or the insulation wall, and The volume of the indoor storage space can be correspondingly increased by effectively arranging the heat insulation thickness or the channel space.

In order to solve the above-mentioned problems, the refrigerator of the present invention is provided with freezing and refrigerating coolers for cooling the refrigerated storage space and the refrigerated storage space respectively, and fans for circulating cold air in each cooling space. The above-mentioned coolers for freezing and refrigerators at the back of the space are disposed close to each other so as to at least partially overlap each other in the front-rear direction.

And, in order to solve the above-mentioned problem, the refrigerator of the present invention is provided with the refrigerating and freezing coolers for cooling the refrigerating storage space and the refrigerating storage space which are divided into a plurality of independent rooms by the heat-insulated compartment, and the cold air flows in each cooling space. The circulating fan is characterized in that the above-mentioned coolers for refrigeration and freezing, each fan, and the passage are assembled into modules and arranged on the back of a plurality of storage sections partitioned up and down by heat-insulating partition walls.

The effect of the invention

If the present invention is adopted, the thickness of the heat insulation layer inside the storage room or outside the main body can be reduced, and the volume of the storage space inside the refrigerator can be correspondingly enlarged.

Moreover, if the present invention is adopted, the peripheral equipment can be compacted by arranging the refrigeration and refrigeration coolers close to each other, and the total thickness of the heat insulation layer inside the storage room and the outside of the main body can be reduced, and the storage space inside the refrigerator can be enlarged correspondingly. volume of space.

Description of drawings

Fig. 1 is a longitudinal sectional view showing a refrigerator according to an embodiment of the present invention.

Fig. 2 is a front view of the refrigerator shown in Fig. 1 or Fig. 8 .

Fig. 3 is a schematic diagram showing a refrigeration cycle of the refrigerator shown in Fig. 1 or Fig. 8 .

FIG. 4 is an exploded perspective view showing an assembly structure of a cooler and a fan in FIG. 1 .

Fig. 5 is a cross-sectional view showing the relationship between the refrigerating and refrigerating coolers of Fig. 1 and the thickness of heat insulation.

Fig. 6 is a sectional view of the same part as Fig. 5 showing another embodiment of the present invention.

Fig. 7 is a cross-sectional view showing still another embodiment of the present invention, the same part as Fig. 5 .

Fig. 8 is a longitudinal sectional view showing a refrigerator according to a fourth embodiment of the present invention.

FIG. 9 is a cross-sectional view showing a positional relationship of coolers in FIG. 8 .

FIG. 10 is a cross-sectional view of the upper fan portion of FIG. 9 .

Fig. 11 is a longitudinal sectional view of the vicinity of the refrigerating cooler in Fig. 10 .

Fig. 12 is a longitudinal sectional view of the cooler part for refrigeration in Fig. 10 .

Fig. 13 is an exploded perspective view of the components of the cooler of Fig. 9 .

Fig. 14 is an exploded perspective view showing a cooling fan and passage constituting members.

FIG. 15 is a perspective view of the structural assembly of FIG. 14 viewed from the inside.

Fig. 16 is a front view showing a state in which the structural unit of Fig. 15 is assembled in a refrigerator.

Fig. 17 is a longitudinal sectional view showing the structure of a conventional refrigerator.

Fig. 18 is a cross-sectional view of the same part as Fig. 5 showing the structure of the prior art.

Detailed ways

One embodiment of the present invention will be described below with reference to the drawings. In addition, the same reference numerals are attached to the same components in all the drawings. Fig. 1 is a vertical cross-sectional view of a refrigerator, and Fig. 2 is a front view thereof, a refrigerator formed of an outer box 2, an inner box 3, and an insulating box made of a heat insulating material 4 filling the space between the inner and outer boxes. The inside of the main body 1 is used as a storage space, and a refrigerator compartment 5 is provided at the uppermost part, and an ice-making compartment 6 equipped with an automatic ice maker and a temperature exchange compartment 7 are arranged side by side through a heat-insulating partition wall 10 below it, and vegetables are arranged below them. Compartment 8, and the freezer compartment 9 is disposed at the bottom, and is independently disposed from each other. A heat-insulating partition wall 10 is also provided between the above-mentioned vegetable compartment 8 and the freezing compartment 9, and the front openings of each storage compartment are provided with respective dedicated doors, which can be freely opened and closed.

At the back of the vegetable compartment 8 below the central part of the main body, there are stacked front and rear along the depth direction but slightly staggered from left to right and are equipped with: a refrigerated cooler 13 for cooling the refrigerated storage space 11 of the refrigerated compartment 5 or vegetable compartment 8, and a cooler for cooling. The cooler 14 for freezing in the freezing storage space 12 such as the ice making room 6 , the temperature exchange room 7 , and the freezing room 9 .

Each of the above-mentioned storage rooms is a space cooled by a refrigeration cycle 21 as shown in FIG. The three-way valve 24 of the switching device of the agent flow path is connected in series with the first throttling device 25 and the refrigerating cooler 13 on the high temperature side and returns to the circuit of the above-mentioned compressor 22, and is connected from the above-mentioned three-way valve 24 to the The refrigerating circuit formed by the above-mentioned first throttling device 25 and the cooler 13 on the high temperature side is connected in parallel with the second throttling device 26 and the refrigeration cooler 14 on the low temperature side, the accumulator 27 and the check valve 28. Refrigerated side circuit.

And, according to the temperature detected by the temperature sensor not shown in the figure provided in the refrigerator compartment 5 or the vegetable compartment 8, etc., the flow path is switched alternately by the first throttling device 25 and the refrigerator for refrigeration by the above-mentioned three-way valve 24. The refrigeration circuit constituted by the device 13, or the refrigeration side circuit constituted by the second throttling device 26, the refrigeration cooler 14, the accumulator 27, and the check valve 28 are used to supply refrigerant for cooling operation, and by respectively disposing to the above-mentioned The rotation of the fans 15, 16 near the cooler 13 for refrigeration or the cooler 14 for freezing controls the cooling respectively, and the refrigerator storage space 11 of the refrigerator compartment 5 or the vegetable compartment 8 on the high temperature side and the freezer compartment 9 or the freezer compartment on the low temperature side are respectively controlled. The freezer storage space 12 such as the ice room 6 is cooled to a predetermined temperature.

The above-mentioned coolers 13, 14 are specially set up for the freezer storage space and the refrigerated storage space respectively, by making the vaporization temperature as close as possible to the temperature of each corresponding storage space which is about -13°C for refrigeration and -30°C for freezing. Power-saving operation is performed while maintaining the high efficiency of the refrigeration cycle.

Specifically, as shown in the perspective view of Figure 4, the refrigerating cooler 13 on the high temperature side is arranged on the side of the vegetable compartment 8 ahead, and the freezing cooler 14 on the low temperature side is arranged on the rear side. The coolers 13, 14 are arranged side by side with an insulating cover 17 formed of molded heat insulating material such as foamed styrene to form mutually independent cold air passages. The front cover 18 covers and integrally forms a cooler assembly 19 . In addition, when the temperature difference between the cooler 13 for refrigeration and the storage room—for example, the vegetable room 8 is extremely small, the front cover may not be the whole cover made of a so-called heat insulator, but a synthetic resin plate. thickness of the seal plate is formed.

And, above each cooler 13,14, be provided with the fan 15,16 that blows the cool air that cooler generates in each storage space and make it circulate and bell mouth etc., they are formed with above-mentioned cooler assembly 19 and match. The inner side of the refrigerator provided on the back insulation wall of the main body is covered with an EVA (Eva, ethylene-vinyl acetate copolymer) cover 30 on the front side, and each storage space 11, 12 is provided from the cooler by the operation of the refrigeration cycle in this way. Cooling air to cool them down to a predetermined temperature respectively.

At this time, the insulating cover 17 disposed between the refrigerating cooler 14 at the rear and the refrigerating cooler 13 at the front splits the cold air discharged from the fan 16 up and down to form a temperature exchange between the ice-making chamber 6 and the upper ice-making compartment 6 . Compartment 7 and the discharge channel 31 in the freezer compartment 9 below. And, in the space formed on one side (the left side in FIG. 2 ) of the cooler 13 for refrigerating at the front, a return passage from the ice making chamber 6 or the temperature exchange chamber 7 to the cooler 14 for freezing or from the cooling chamber for freezing is formed. The backflow passage 32 at the beginning of the chamber 9, or the cold air that flows downward from the refrigerating chamber 5 into the vegetable compartment 8 returns to the backflow passage 33 of the cooler 13 for refrigeration, etc., and the fan 15 is arranged above the cooler 13 for refrigeration. The cold air blowing duct 34 formed on the back side of the chamber 5 is connected.

And, the cold air discharged from the cooling cooler 14 by the fan 16 is divided into the lowermost freezing chamber 9 and the top by the discharge passage 31, and one side of the cold air blown to the top flows into the ice making chamber 6 to promote ice making, and the other side is adjusted to The device 35 flows into the temperature exchange chamber 7 to cool and control the indoor temperature to a predetermined set temperature, and the cold air circulated and cooled in each chamber returns to the refrigerator 14 again through the return channel 32 .

The cold air generated in the cooler 13 for refrigeration is exhausted to the upper cold air discharge passage 34 by the fan 15, and blows into the cold air outlet 36 from the cold air outlet 36 which is staggered up and down in the passage 34, and the contents in the cooling chamber are blown into the refrigerator compartment 5 from below. The suction port of the vegetable compartment is introduced into the vegetable compartment 8 through the passage, and after being cooled, it returns to the cooler 13 for refrigeration and circulates.

By adopting the above structure, as shown in FIG. 5, which is a schematic longitudinal sectional view of the cooler arrangement portion, there is only a gap between the indoor temperature of the front refrigeration cooler 13 with the increased vaporization temperature and the vegetable compartment 8 on the indoor side. There is a small temperature difference, so as can be understood by comparing with FIG. 18 of the prior art of the same part, the thickness dimension of the front cover 18, which is the heat insulation partition wall for preventing dew condensation or icing, can be insulated. Thickness A is obviously thinner than the heat insulation thickness between the refrigerator for freezing and the vegetable compartment of the prior art, specifically, the a of Fig. 18 in the prior art needs 70mm, and the heat insulation thickness A has 10mm just passable.

At this time, although the structure of the present invention is due to the relationship between the refrigerating and freezing coolers 13 and 14 being stacked before and after, a new insulating cover 17 is needed between the two coolers, that is, the insulation thickness B (25mm), but on the reverse side, that is, The back side of the refrigerating room 5 does not need the same thermal insulation thickness d (10 mm) as the above-mentioned thermal insulation thickness a provided between the refrigerator 63 in the prior art, so the thermal insulation thickness D is basically 0, and the refrigerating room The heat insulation thickness E of the surface portion of 5 from the atmosphere is also because there is no cooler 13 for refrigeration here, so the heat insulation performance can be reduced, and the thickness E is reduced by 10 mm to 40 mm.

In addition, although the heat insulation thickness C on the back side of the main body of the refrigerators 13 and 14 for refrigeration and freezing is 70 mm under the same conditions as in the prior art, the total amount of the above-mentioned reduction is different from that of the prior art structure. The thickness of the insulation can be reduced by about 55mm, so the internal volume of the refrigerator can be increased by about 22L (liter) compared with the prior art under the same conditions while maintaining the external dimensions.

Other embodiments of the present invention will be described below. In the above-mentioned embodiment, the coolers 13, 14 arranged side by side in front and behind are disposed at the back of the vegetable compartment 8, but as shown in FIG. 6 shown in FIG. On the inside of the back, which is the freezer compartment on the front side, a cooler 14 for freezing is provided via a front cover 18 ′, and a cooler 13 for refrigeration is provided via an insulating cover 17 .

At this time, the insulating cover 17 between the freezing and refrigerating coolers 14, 13 arranged side by side, that is, the heat insulation thickness B' (25mm) is the same as the above-mentioned embodiment, and the cooler on the front side is used as the one with a low vaporization temperature. Freezing cooler 14, but since the indoor side corresponding to it is the freezing chamber 9 cooled to below -18°C, there is only a relatively small temperature difference between the two as in the above-mentioned embodiment, so the front of the insulation heat leakage The heat insulation thickness A' of the cover 18' can be 10 mm as in the above-mentioned embodiment, which can be significantly thinner than the heat insulation thickness a between the refrigerator for freezing and the vegetable compartment in the prior art.

In this embodiment, because the cooler on the rear side is the cooler 13 for refrigerating, the temperature difference with the ambient temperature is smaller than that of the cooler for freezing, so the heat insulation thickness C' can be reduced. Compared with the prior art example, it can be reduced by 20mm to 50mm, and the heat insulation performance can be obtained. Compared with the structure of the prior art shown in Figure 18, the total reduction can be minimized, so that the heat insulation thickness is 75mm, Compared with the structure of the prior art under the same conditions, the internal volume of the refrigerator can be increased by about 27L (liter).

And, as shown in FIG. 7 , even if the freezing cooler 14 is arranged in the front part of the room, the cooling cooler 13 for refrigeration is arranged at the rear and the freezing and cooling coolers arranged at the back of the vegetable compartment 8 are arranged side by side. In the case of a refrigerator, since the freezing cooler 14 adjacent to the vegetable compartment 8 with a high set room temperature has a low vaporization temperature, the heat insulation thickness A" of the front cover 18" as this part of the heat insulation partition wall needs to be compared with that of the refrigerator. The same thickness as the prior art is 70 mm, and the heat insulation thickness B" used for insulation between the two coolers needs to be the same as the above 25 mm, but since the rear cooler is the cooler 13 for refrigeration, it is insulated from the atmosphere The thickness C" can also be 50 mm.

And, like above-mentioned each embodiment, do not need the heat insulation thickness d (10mm) that is arranged between the back side of refrigerating chamber 55 and refrigerating cooler 63 of the prior art, the heat insulating thickness E " of refrigerating chamber 5 back side is also Because there is no cooler 13 for refrigeration here, the heat insulation performance can be reduced, and it becomes 40mm by reducing the thickness by 10mm. Generally speaking, the heat insulation thickness can be reduced by 15mm compared with the prior art, and the internal volume of the refrigerator can be increased. About 10L (liter).

If the structures of the above-mentioned embodiments are adopted, the coolers 13 and 14 for refrigeration and freezing are arranged side by side corresponding to the back of the storage room, and the coolers on the front side and the corresponding storage compartments are arranged according to the small temperature difference. The storage room and the respective coolers for refrigeration and freezing can be in the most suitable heat insulation relationship, and the thickness of the heat insulation layer inside the storage room or outside the main body can be reduced, and the volume of the storage space in the refrigerator can be increased accordingly , and can reduce the area of the cooler corresponding to the upper and lower lengths of the main body insulation wall 4, for example, the size of the arrangement can be minimized when a vacuum insulation panel is used, and the material cost can be effectively reduced.

Furthermore, by integrating the coolers 14 and 13 for freezing and refrigerating into one unit, assembly work and transportation become easy, and manufacturability and efficiency of service work can be improved. Moreover, by combining the fans 16, 15 for freezing and refrigerating or the regulator 34 for controlling the flow of cold air to each storage room, and the insulating cover member forming the duct formed of molded heat insulating material such as foamed styrene as an assembly, the This assembly is integrated with the above-mentioned cooler assembly 19 for freezing and refrigerating, and can integrate the arrangement of various components to obtain the effect of saving space.

In addition, although in the above-mentioned embodiment, the refrigerator compartment 5 is arranged on the uppermost side, the ice making compartment 6 and the temperature exchange compartment 7 are arranged side by side, the vegetable compartment 8 is arranged below it, and the freezer compartment 9 is arranged on the bottom. arrangement, but the present invention is not limited thereto.

Next, a fourth embodiment of the present invention will be described with reference to the drawings. Fig. 8 is a longitudinal sectional view of the refrigerator, and Fig. 2 is a front view thereof. In the following description, in order to avoid repetition, the same parts as those of the first embodiment are omitted.

Since the storage volume of the above-mentioned refrigerating chamber 5 is the largest and the frequency of use is the highest, the pins provided on both sides of the front opening are pivoted to support the left and right side-by-side doors, and the opening is freely closed by turning in this way. The storage rooms such as the ice making room 6, the temperature exchange room 7, the vegetable room 8, and the freezer room 9 other than 5, because the storage volume is smaller than the refrigerator room and the height and position are convenient to use, so the guide rail parts installed on the indoor wall surface are used. The container held on the support frame fixed on the door slides back and forth, and is pulled to the outside with the action of opening the door, and the method of storing or taking out food is opened from the top of the container.

As shown in FIG. 3, each of the above-mentioned storage compartments is cooled by the refrigeration cycle 21 as in the first embodiment.

In the present embodiment, as shown in FIG. 9, which is a cross-sectional view of the cooler part in the pretreatment stage of foaming and filling the heat insulating material 4 between the inner box 3 and the outer box 2, the cooling for refrigeration on the high temperature side is The refrigerator 13 is disposed on the side of the vegetable compartment 8 in the front, and the cooler 14 for freezing on the low temperature side is disposed on the rear side. These coolers 13 and 14 for refrigeration and freezing are separated by an insulating cover formed of a molding material such as expanded styrene. 17 are arranged side by side, and the front refrigerating cooler 13 is arranged on the right side when viewed from the front, and the rear freezing cooler 14 is arranged on the left side so that they are staggered.

In addition, as shown in the cross-sectional view of the cooling fans 15 and 16 corresponding to the rear surfaces of the ice making chamber 6 and the temperature exchange chamber 7 above the above-mentioned FIG. As can be understood from FIG. 10 , FIG. 11 as a longitudinal sectional view near the freezing cooler 14 , and FIG. 12 as a longitudinal sectional view of a portion of the refrigerating cooler 13 , the refrigerating cooler 13 located in the front is arranged at a lower position than the rearward one. On the lower position of the cooler 14 for freezing, and corresponding to the upper parts of the coolers 13 and 14 for refrigeration and freezing, the fan 15 and the fan 16 are arranged. A part of the low-temperature cold air on the freezing side sucked in from the back takes the front side as the blowing side, and is respectively introduced into the ice-making chamber 6 and the temperature exchange chamber 7 at the front through the regulator 118, and most of the remaining cold air is drawn from the above-mentioned insulating cover 17 in the freezing chamber. Blowing is blown into the freezing chamber 9 below through the freezing blowing passage 129 formed on the front side of the cooler 14, and the temperature in each chamber is cooled and controlled to a set temperature.

The cold air circulated in the ice-making chamber 6 and the temperature exchange chamber 7 is introduced into the cooling system for freezing through the I return channel 130 and the S return channel 131 formed in the heat insulation space on the left side of the cooler 13 for refrigeration, which is arranged on the right side. The suction port 132 for freezing below the device 14 merges with the cold air circulated in the freezing chamber 9 and returns to the cooler 14 for freezing.

The cooling of one side of the refrigerated space is carried out like this: the passage extending rearward from the top of the refrigerating cooler 13 arranged on the right side is used as the passage 133 of the suction fan, and the cold air is blown upward from the fan 15, and the air is blown out from the blowing passage 134 for refrigerating. It flows into the back channel 135 formed across the entire back width of the refrigerating room 5 and rises, and blows into the room from the refrigerating outlet 136 on the top or the center of the back, or the periphery of the back, and cools it to a predetermined temperature.

The cold air circulated in the refrigerating chamber 5 is sucked into the refrigerating suction passage 137 provided at the front of the above-mentioned refrigerating blowing passage 134 from the bottom of the chamber, and passes through the insulating cover 17 formed on the back of the temperature switching chamber 7. The V channel 138 is introduced into the vegetable compartment 8, and the cold air after circulating and cooling the vegetable compartment 8 is sucked into the lower part of the cooler 13 for refrigeration from the bottom of the vegetable compartment, and then circulates repeatedly.

By adopting the above structure, since the cold air coming out from the cooler 13 for refrigeration is blown upward on the same side from the position on the right side in the width direction of the back side where the cooler is arranged, flows into the back passage 135, and circulates in the refrigerator compartment 5. It flows in the V channel 138 leading to the vegetable compartment 8 formed at the front part of the blowing channel 134 for refrigeration and the front part of the suction part of the fan 15, so the pressure loss is small, and since the temperature of the cold air circulated with each other is similar, it can reduce the pressure loss. Thin insulation thickness between adjacent channels becomes effective channel structure.

In addition, the blow-out passage 134 for refrigeration and the suction passage 137 for refrigeration from the above-mentioned fan 15 to the rear passage 135 are integrally provided in the rear partition wall between the refrigerator compartment 5 and the ice-making compartment 6 and the temperature switching chamber 7 below. In the molded heat insulating material 139, by inserting and installing the molded heat insulating material 139 from the back of the inner box 3 into the heat insulating partition wall 10 in the pretreatment stage before foaming and filling the urethane foam heat insulating material, not only can The distance between the heat-insulating partition walls 10 is ensured, and the passages 134 and 137 are easily positioned, so that the inner box 3 can be securely fixed.

In this way, the coolers 13 for refrigeration and the coolers 14 for freezing are arranged so that they are stacked front and rear on the back side of the vegetable compartment 8 and staggered left and right, so that not only the influence on the temperature of each cooler with a large vaporization temperature difference is reduced as much as possible, but also in each cooler. Cooling fans 15, 16 corresponding to each cooler are arranged side by side on the top of the device 13, 14, so that the direction of each fan blowing cold air is opposite to each other, and the fan 16 is blown out to the front.

Therefore, since the cold air generated by each cooler can flow through the corresponding cooling fans 15, 16 in a good positional relationship, the freezing blowing passage 129 is formed in front of the fan 16 and the freezing cooler 14, and the insulating cover 17 is interposed. Since the cooler 13 for refrigeration is arranged, the thickness of the heat insulating material of the said insulating cover 17 can be made thin.

In addition, the return passages 130, 131 from the ice making chamber 6 and the temperature exchange chamber 7 are provided in the heat insulating wall on the side of the cooler 13 for refrigeration in the front, so that it is possible to prevent the storage chamber from being installed in other places such as indoors. Significant reduction in volume.

As shown in FIG. 13 which is an exploded perspective view of each component, the cooler 13 for refrigeration and the cooler 14 for freezing are integrated with the EVA cover 141 for freezing and the above-mentioned insulating cover 17 sandwiching the front side of the cooler 14 for freezing. The front of the cooler 13 for refrigeration is covered with an EVA cover 142 for refrigeration to form an EVA assembly 140. The line ends of the above-mentioned refrigeration cycle are combined. At this time, since the front refrigerating cooler 13 is installed at a lower position than the rear refrigerating cooler 14 as described above, the piping connection and welding work on the upper part of the refrigerating cooler 14 can be easily performed.

And, each cooling fan 15,16 is positioned at the upper part of cooler 13,14 in this state and is assembled as shown in the exploded perspective view of Fig. The EVA cover assembly 143 just becomes the state shown in Figure 15 viewed from the side of the cooler and the fan inside, and the front cover 144 is used to cover the front of the entire assembly to complete the assembly of the cooler assembly.

In addition, 145 is a fan passage assembly, which not only forms the bell mouths of the cooling fans 15, 16, but also forms an integral assembly of cold air intake passages and blowing passages, and is also a component assembled to the rear of the above-mentioned EVA cover assembly.

The partition wall 146 partitioning the vegetable compartment 8 and the upper compartment and the partition wall partitioning the upper ice making compartment 6 and the temperature exchange compartment 7 are assembled after the above-mentioned cooler unit is assembled on the back side.

Therefore, if the above-mentioned structure is adopted, when constituting the heat-insulated storage space of the refrigerator, it is possible to form a space between the large-volume refrigerator compartment 5 and the lowermost vegetable compartment 8 (i.e., the freezer compartment 9 during the present embodiment) by foaming in situ. The heat insulation partition wall 10 can obtain the rigidity as a cabinet, and the backs of the ice making compartment 6, the temperature switching chamber 7 and the vegetable compartment 8 divided into upper and lower sides by the above heat insulation partition wall 10 can be used as shown in FIG. One section, the above-mentioned refrigeration and freezing coolers 13, 14 and fans 15, 16, and the components that constitute the cooler chamber including passages can be assembled into one body as an EVA assembly 140 or an EVA cover assembly 143, and this part can be arranged. Therefore, not only can the cooling equipment components originally composed of many component groups be simplified, the assembly work can be facilitated, and they can be assembled to predetermined positions with high precision, and each cooling system can be easily and reliably carried out in a relatively wide space. The pipe connection between the device 13, 14 and the refrigeration cycle system, the electrical connection of the fans 15, 16, etc.

Furthermore, by assembling them as a unit, the arrangement of each component is integrated, and a space-saving effect can be obtained. Moreover, the transport operation becomes easier due to the modularization, and the efficiency of manufacturability and service work can be improved.

Or, by adopting the above-mentioned structure, by disposing the cooler 13 for refrigerating that is arranged on the back side of the refrigerating room 5 in the prior art together with the cooler 14 for freezing, the back side of the refrigerating room 5 does not need a space for a cooler, and the back passage 135 The back side of the entire refrigerating chamber 5 can be used, so especially the depth dimension can compress the thickness dimension of 50mm required for the thickness of the cooler and the insulation wall thickness between the cooler and the room to 15mm where the back channel 135 is provided, and can Obtain the required predetermined duct cross-sectional area.

Therefore, by increasing the compressed thickness dimension as the depth dimension of the refrigerator compartment 5, the volume of the refrigerator compartment 5 can be significantly increased, and in a large refrigerator with an effective internal volume of about 400L (liter), it is possible to effectively accommodate The volume increases by tens of liters.

And if adopt the structure of above-mentioned embodiment, owing to be arranged in the front of the refrigerating cooler 13 of the front side is the vegetable compartment 8, is the disposition relationship that the temperature difference of both sides is relatively small, therefore can make the vegetable compartment 8 and refrigeration usefulness and freezing usefulness. The coolers 13 and 14 have the most suitable heat insulation thickness relationship, and do not provide a heat insulation material made of foamed styrene or the like to prevent the surface of the front cover 144 from freezing, and only use the above-mentioned thin-plate-shaped resin molded body. The front cover 144 covers. Therefore, this part does not need the thickness dimension of the heat insulating member, correspondingly, the depth dimension of the vegetable compartment 8 can be increased, and the volume of the indoor storage space can be enlarged.

In addition, when the surface temperature of the front cover 144 is lowered by the influence of the cooler 13 for refrigeration, etc., and there is a possibility of condensation or freezing, it is sufficient to sandwich a thin-walled heat insulating board; As shown in Fig. 12, the drip groove 147 is integrally formed on the front lower side of the front cover 144, and the dew condensation water that catches and flows down is introduced into the inside of the front cover 144, and flows into the drain groove 148 of the cooler 13 for refrigeration; In particular, it is also possible to arrange a low-power heater on the side of the cooler 13 for refrigeration of the front cover 144, and to energize it after the cooling operation for refrigeration, so as not only to prevent condensation caused by the high humidity environment in the vegetable compartment 8, but also It can be used for defrosting the cooler 13 for refrigeration.

And, as shown in FIG. 11 , the cooler 13 for refrigeration and the insulating cover 17 on the inside thereof are inclined corresponding to the inclined surface on the back side of the vegetable container 8 a provided in the vegetable compartment 8 in front, so that the vegetables will not be reduced due to the inclination. The storage volume of the container (8a) in the room can be increased by an amount equal to the projected area on the bottom surface of the longitudinal opening dimension (A in FIG. 11) of the blowing passage 129 for freezing. Furthermore, the opening area (B in FIG. 11 ) of the suction port 132 leading to the cooling cooler 14 on the lower side can be enlarged, and the circulation efficiency of cold air in the duct can be improved.

In addition, although in the above-mentioned embodiment, the refrigerator compartment 5 is arranged at the uppermost part, the ice making compartment 6 and the temperature switching compartment 7 are arranged side by side, the vegetable compartment 8 is arranged at the lower part, and the freezer compartment 9 is arranged at the lowermost part. arrangement, but the present invention is not limited thereto.

Industrial availability

The present invention can be used in a refrigerator provided with a cooler and a cold air circulation fan for respectively cooling the freezing storage space and the refrigerating storage space.

Claims (14)

1. A kind of refrigerator, is provided with the freezer that specially cools the freezer storage space and the refrigerated storage space respectively and the cooler that refrigerates with, and makes cold air circulate in each cooling space, is characterized in that, makes the storage space back that is arranged The above-mentioned coolers for freezing and refrigeration are arranged close to each other so as to at least partially overlap each other in the front-rear direction. 2. The refrigerator according to claim 1, characterized in that it is provided with a refrigerating room with a front opening opened and closed by a rotary door and a vegetable room with a sliding door, and the coolers for freezing and refrigerating are installed in the vegetable room. back. 3. The refrigerator according to claim 1 or 2, wherein the freezer and the refrigerating cooler are arranged at the back of the refrigerating storage space, and the refrigerating cooler is arranged on the side of the front storage space, and the freezing It is arranged in the rear with a cooler. 4. The refrigerator according to claim 1, characterized in that it is provided with a refrigerating room with a front opening opened and closed by a rotating door and a freezer storage room in the form of a drawing door, and the coolers for freezing and refrigerating are arranged in the freezer storage room. The back of the compartment, and the cooler for freezing is arranged on the side of the storage space in the front, and the cooler for refrigeration is arranged in the rear. 5. The refrigerator according to claim 1, wherein the freezer and refrigerating cooler assemblies are integrated, and the freezer and refrigerating fans and the regulator assembly for controlling the cold air flow to each storage compartment are integrated. into one. 6. The refrigerator according to claim 1, wherein a freezer and a refrigerating cooler, a freezing and a refrigerating fan, and a regulator unit for controlling cold airflow to each storage compartment are integrated. 7. A refrigerator, which is provided with coolers for refrigeration and refrigeration for cooling the refrigerator storage space and the freezer storage space which are divided into a plurality of independent rooms by the heat-insulated area, and a fan for circulating cold air in each cooling space, wherein It is characterized in that the above-mentioned coolers for refrigeration and freezing, each fan, and the duct are assembled into modules and arranged on the back surfaces of a plurality of storage sections partitioned up and down by heat-insulating partition walls. 8. The refrigerator according to claim 7, wherein after disposing the assembly of the cooler, the fan and the duct to the back, the storage section at the front is divided into a plurality of storage rooms by a partition wall. 9. The refrigerator according to claim 7, wherein the coolers for refrigeration and coolers for freezing provided at the back of the storage space are at least partly overlapped in the front-rear direction, and are arranged to be staggered left and right. 10. The refrigerator according to claim 9, wherein the coolers for refrigeration and freezing are arranged at the back of the refrigeration storage space, and the coolers for refrigeration are arranged on one side of the storage space in front, and the coolers for freezing The cooler is arranged at the rear. 11. The refrigerator according to claim 7, wherein the fan for the refrigerating space and the fan for the freezing space are disposed above the coolers for refrigerating and freezing, respectively. 12. The refrigerator according to claim 11, wherein the fan for the refrigerating space and the fan for the freezing space are configured such that the blowing directions are opposite, and the cooling air is blown forward by the fan for the freezing space, and the cold air is sent into the frozen air through the passage. space. 13. The refrigerator according to claim 9 or 10, wherein the cooler arranged in the front is arranged obliquely so that the upper part becomes rearward. 14. The refrigerator according to claim 9 or 10, wherein no heat-insulating partition wall is provided between the cooler disposed at the front and the storage room.

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