MXPA97002883A - Refrigerator with cold air dispersion device in espi - Google Patents

Abstract

A refrigerator including a main body 64 housing a fresh food compartment 63, and a cold air duct 131 provided in a wall of the fresh food compartment and having cold air discharge openings III open to the fresh food compartment 63 for supplying cold air from an evaporator 72b into the fresh food compartment, the refrigerator consisting of a rotating shaft 85, driving means 125 for rotating the rotary shaft, and cold air dispersing wings 81 mounted spirally on the rotating shaft 85 of the cold air discharge openings III for deflecting the discharge angle of the cold air expelled into the fresh food compartment 63 through the cold air discharge openings; a cold air dispersing device 80 equipped with such dispersion wings of cold spiral air 81 performs uniform cooling of the food compartment fr escos 63 in directions left, right, up and down, in addition, a concentrated cooling of a specific region is also made possible by the fixable angular position of the cold air dispersion wings

Description

REFRIGERATOR WITH DISPERSION DEVICE FROM ñIRE FRIQ IN ESEIEDL TECHNICAL CRAM The present invention relates to a refrigerator, specifically to a refrigerator "which includes a main body housing a fresh food compartment, and a cold air duct provided in a wall of the fresh food compartment and which has firing of air discharge (- "open to the fresh food company to supply cold air from an evaporator inside the fresh food compartment.

TECHNICAL BACKGROUND As described in FIG. 1, a conventional refrigerator has a main body used thermally 4 by opening a freezing compartment 2 and a fresh food compartment 3 separated from one another by means of a dividing wall 1, as well as a door 6 of the freezing compartment and a door 7 of the fresh food compartment, which open and close the freezing compartment 2 and the fresh food compilation 3 respectively. A refrigeration system consisting of a compressor 11, a condenser (not shown), an evaporator 12a for the freezer compartment 2 and an evaporator 12b for the food compartment is installed in the main body 4 of the refrigerator. fresh 3. A cold air produced in each evaporator 12a, 12b is directed towards the freezing compartment 2 and the fresh food compartment 3 by means of the cooling fan 13a of the freezing compartment or the fan 13b of the fresh food compartment. . In the rear area of the fresh food compartment 3 is arranged a cold air duct 15 which guides the cold air from the fan 13b of the fresh food compartment. The cold air duct 15 has cold air discharge openings 15 which face the interior of the fresh food compartment 3 through which cold air is supplied to the compartment 3. A control moderator 11 which closes and It opens the entrance of the cold air duct 15 is provided at the entrance of the cold air duct 15 to control the amount of cold air expelled inside the compartment of fresh food 3. In typical refrigerators, the cold air for ol compar Fresh food 3 is usually released in a so-called ledge style by shelf or illustrated on the figure ~ > In a shelf-to-shelf cooling method, the fresh food composition 3 is stiffened by shelves R in several sub-compartments, and the vertically disposed cold air discharge openings 16 are associated with the sub-compartments. to provide the cold air to the appropriate part or corresponding correspondent. r ,,? However, the refiner who adopts the previous shelf-to-shelf cooling method includes the problem of non-uniform cooling in € - > ! Fresh food compulsion 3, due to a temperature difference between the regions of a fresh food compartment 3. Whenever cold air is expelled inside the compartment 3 only in the direction towards which the openings of Download 16, is it possible? that there is a region within the compartment 3 that receives more or less cold than the others. Moreover, such a cooling method does not allow the flexibility to concentrate the cold air in a specific region when there is a need for a colder region than the others. A so-called refractor-ridimensional has recently been designed to overcome the previous disadvantage of the shelf-to-shelf ledging method. As illustrated in FIG. 3, in such a method, a number of "cold air discharge openings 16" is located not only on the rear wall, but also on the side walls of the fresh food compartment 3, perrni t In "the release of cold air from three sides. Such a thermal cooling method, despite providing an evenly better distribution of cold air in the sharing of fresh foods, 3 does not, however, allow it to be used as a cooling medium.; cold air is completely "lisperso in"., •! compartment 3, since the discharge of cold air is effected only in fixed directions. Food items stored in a region where cold air is mainly run have the risk of being overfed. In contrast, food items stored in the corners may not be cooled enough. Accordingly, does it exist? in the method? n definite limit to maintain uniform temperature throughout the storage area. fideinas, as in the case of shelf cooling system by shelf, this method makes it impossible to concentrate cold air in a specific area, if there is a need to do so. A further significant problem with the three-dimensional cooling method is that a refrigerator with such a system is expensive to produce (extra parts and extra cost of opening) to see what additional ducts need to be installed in the side walls of the fresh food compartment. 3. Still, such a refrigerator also has another disadvantage of a reduced storage capacity since the walls need to be as thick. Have you still, the loss of energy in the flow do \? r < > trio is made inas s i gni fi ca 1 va. The aforementioned problems become a real aspect with the current trend for increasingly large refrigerators. In high-rise refrigerators that require larger dimensions, there is a definite limit in distributing river air uniformly to all regions in the fresh food compartment 3. As illustrated in Figure 1, < As the air discharge opening rpo 16 is formed perpendicular to the cold air flow direction, the cold air coming from the evaporator 12b is not evenly distributed along the discharge openings. At the lower end of the discharge opening, more cold air will be distributed. As a result, a uniform distribution of cold air in the fresh food compartment 3 in a vertical direction can not be obtained, resulting in overheating of the food items stored in the lower part, and the poor cooling of food. The foodstuffs stored in the upper part of the foodstuffs are used to solve the aforementioned problems. A refri erator has been proposed in the international patent publication 1 UO 95 / 2717R by the applicant of this invention. The refrigerator is equipped with a cold air dispersion device that distributes the cold air that comes from the cold air duct to all regions of the fresh food compartment, as illustrated in Figures 4 to 7. l 4 is a side cross-sectional view of a refrigerator equipped with a cold air dispersion device, and FIG. 5 is a partially elongated view of the reflector in FIG. 4. Figure 1, the reflector consists of a main body 14, a compressor 31, evaporators 32a, 32b and fans 33a, 33b. On the rear wall of the fresh food compartment 23 there is provided a cold air lute 34, through which the cold air coming from the evaporator 32b of the fresh food compartment flows downwards after being expelled from the same or by the fan 33b of the fresh food compartment. Within this cold air duct 34 there is disposed a cold air dispersing device 40 in a vertical arrangement. On the rear wall of the fresh food compartment 23 there are cold air discharge openings 36 through which the cold air coming from the cold air duct 34 is discharged into the fresh food compartment 23. The cold air dispersing device 40 guides the cold air provided within the fresh food compartment 23 through these discharge openings of cold air 36. At the rear of the cold air duct 34 is arranged a circulation duct 28 which is connected to the fresh food compartment 23 and to the evaporator 32b of the fresh food compartment. such that the pipeline faith 23 is isolated from the pipeline <The cold air 34. The cold air, after fitting the fresh food compartment 23, is returned to the evaporator 32b of the fresh food compartment by means of the circulation duct 2í3. The cold air dispersing device 40, as illustrated in FIG. 6, consists of a rotating shaft 41 and a plurality of cold air dispersion wings 45. The rotary shaft 41 is installed on the surface of the rear wall. of the fresh food compartment 23 in such a way as to allow it to rotate freely »Towards the upper part of the rotary shaft 41 is connected a motor-impulse 38 which makes it possible to rotate the arrow 41. The cold air 45 has a wavy strip shape towards a plane including the axis of rotation of the rotary arrow 41. The wings 45 are spaced apart from one another along the iong «l« of arrow 41 and they are arranged to correspond thus to the positions of the cold air discharge openings 36. At the upper and lower end of each cold air dispersion wing 45 end discs 43 are disposed which include the upper and inner discs 43a and 43b res. pectively. Moreover, between the disks 43a and 43b there is disposed an intermediate disk 44 which bisects the cold dispersion wing 45 in a first portion of wing 45a and a second wing portion 45b. Each wing portion 45a, 45b is curved in such a way < The shape of the "V" ransversal onto Within a cold air dispersion wing 45, the "V" shape of the upper and lower wing portions 45a and 45b are inverse to each other. When the driving motor 38 rotates the rotary arrow 41 at low speed, the cold air supplied through the cold air duct 34 changes its flow direction in accordance with the curved surface of the cold air dispersion wings 45; and as illustrated in Figure 7, cold air is expelled into the fresh food compartment 23, dispersed in the left and right directions. A uniform distribution of cold air is obtained on the right and left side of the fresh food compartment 23, and the cold air can be concentrated towards a specific region by fixing the front direction of the cold air dispersion wings 45 by stopping the rotation of the rotary arrow 41. It is by such a cold air dispersing device 40 that a uniformly distributed cooling or concentrated cooling is obtained in the fresh food container 23. Although the former air dispersion device cold 40 allows the refrigerator to obtain a uniform distribution of cold air in the horizontal direction, I do not allow a uniform distribution of air f ío in the vertical plane.Fn other words, the former dispersing device d * cold air if allowed a dispersion from left to right of the cold air, but does not allow a "top-down" cold air, not allowing in close To obtain a uniform distribution of cold air throughout the fresh food compartment 23.

DFSCRIPTION OF LR INVENTION Accordingly, the object of the present invention is to provide a refrigerator in which uniform refrigeration is obtained in a fresh food compartment by uniform discharge of cold air from an evaporator in the left, right, up and down directions, and in which it is possible to concentrate all the cold air in a specific region, if the need were created. The object, according to the present invention, is obtained by means of a refrigerator that includes a main body that houses a fresh food compartment, and a cold air duct provided in a wall of the fresh food compartment and that has cold air discharge openings open to the fresh food compartment to supply cold air from an evaporator inside the fresh food compartment, the refrigerator consists of a rotating arrow; 1 «impellers for rotating the rotary arrow; and cold air dispersion wings mounted spirally on the rotating shaft near the cold air discharge openings to deflect the cold air discharge nozzle ejected into the "fresh food compartment at the top". cold discharge. Here, it is preferred that the spiral cold air dispersion wings form a double spiral structure. Desirably, the cold air discharge openings are disposed in a line with a predetermined space between them, and the cold air "Jispersion" wings are arranged in correspondence of the openings < 1e discharge of cold air. To liberalize the cold air effectively in the rear corner regions of the fresh food compartment, cold air dispersion wings can exit from an interior wall of the fresh food compartment to the bottom of the fresh food compartment. In that case, a cold air grill of a partially cylindrical shape, which is formed with the cold air discharge openings, can be advantageously provided along the rotating shaft.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be better understood and its various objects and advantages will be more fully appreciated from the following description, taken in conjunction with the accompanying drawings, in which: L) Figure 1 is a view lateral cross-section of a typical refrigerant, Figure 2 is a front view of the interior of the refrigerator that adopts the cooling method of shelf by repi, 5 Figure 3 is a front view of the interior of another conventional refrigerator «] Figure 4 is a side cross-sectional view of another refrigerator provided with a river air dispersion device, Figure 5 is a partially elongated view of the ura 4, Figure 6 is a elongated perspective view of the cold air dispersion device «Fig. 5, Fig. 7 is a front view of the refrigerator in Fig. 4, Fig. 8 is a cross-sectional view side of a refrigerator equipped with a cold air dispersion device in accordance with the present invention, Figure 9 is a partially elongated perspective view of Figure 8, Figure 10 is an exploded perspective view of Figure 9, Figure 11 is a rear perspective view of Figure 10, showing the coupled state of a duct member and a front panel, Figure 12 is a partially elongated perspective view of the cold air dispersion device, and Figure 13 is A front view of the refrigerator on the 8 showing its interior.

HE3QR FQRH OF CARRYING OUT CflBQ INVENTION From now on the present invention will be described in detail with reference to the drawings. Figure 8 is a side cross-sectional view of a refrigerator equipped with an air dispersion device fr or in accordance with the present invention. As illustrated, the refrigerator according to the present invention, like conventional refrigerators, has an insulated thermominifiable main body 64 housing a freezing compartment 62 and a fresh food compartment 3 separated therefrom by a partition wall 61. , as well as a door 66 of the freezing compartment and a door 67 of the fresh food compartment, which open and close the freezing compartment 62 and the fresh food compartment 63 respectively. In the fresh food compartment 62 a plurality of shelves are disposed 68 <They are located in compartment 63 in various storage areas. A special sub-section 63a is disposed in the upper region "I read fresh food compartment 63 for food items" which require storage at a specific temperature. In the lower part of the fresh food compartment 63 is located a vegetable compartment 63b for storing vegetables. A compressor 71, a condenser (not shown), as well as an evaporator 72a of the freezing compartment and an evaporator 72b of the fresh food compartment which carry out a cycle together are installed in the main body 64 of the refrigerator. He refrigeration. The cold air is produced in each evaporator 72a, 72b. Directly on each evaporator 72a, 72b is arranged a fan 73a for the freezing compartment 62 and a fan 73b for the fresh food compartment 63, which strongly expel the cold air produced in the evaporators, 72a, 72b inside the compartment fresh food 63 or the freezing compartment 62. On the rear wall of the fresh food compartment 63 is provided a cold air duct 131 in which a cold air dispersing device 80 is disposed. The cold air expelled into the duct of cold air 131 by the fan 73b of the fresh food parfl-63 is additionally released into the fresh food compartment 63 through the cold air dispersing device 80. At the rear of the duct of cold air 131 is arranged a circulation duct 74 which connects to the fresh food compartment 63 and to the evaporator of the compartment dry food 72b in such a way that the circulation duct 74 is isolated from the cold storage duct 131. The cold air, after cooling the fresh food compartment 63, is returned to the evaporator of the fresh food compartment 72b by middle of the aforementioned circulation lute 74. Figure 9 shows an enlarged lateral cross-sectional view of the housing "Je vent 100, which is installed in the rear wall of the fresh food compartment 63 and constitutes the cold air duct 131. Figure 10 is an exploded perspective view. of Figure 9. The duct housing 100 that forms the cold air duct 131 consists of a duct member 130 which guides, in isolation to the cold air, a front panel 120 that covers the front side of the duct member 130, a sealing panel 150 covering the rear side of the duct member 130 and a partially cylindrical cold air grill member 110 surrounding the cold air dispersing device 80 on the front side of the front panel 120. On the grill member of cold air 110 cold air discharge openings 111 are formed which face towards the fresh food compartment 63. The cold air dispersion device 80 is rotatably installed in the front panel 120. The front panel 120 and the duct member 130 are formed with "Jets 121, 121" for mounting "Jar" a portion of the cold air dispersing device 80 to surround the cold air device 80 in cooperation with the member. cold air grill device 10. The cold air dispersing device 80 consists of a vertically arranged rotating shaft 85 and wings of cold spiral air dispersion 81, which are disposed along the arrow 85 in Locations corresponding to the cold air discharge openings 111. The device 80 is rotated by means of a driving motor 125 housed in a motor cover 124 located in the upper part of the front panel 120. It is desirable that the driving motor - • 125 is a stepped motor to allow controlled angle stops and reverse rotation. At each "Jo" Jel engine nnp? Lsor 125 is disposed a lamp 127 for lighting purposes, which is turned on and off according to the open / closed state of door 67 of the fresh food compartment. A lamp cover 126 accommodates each lamp 127. The cold air grill member 110 is installed in the depressions 121, 121 'of the front panel 120. The cold air intake openings 111 in the grill member 110 are disposed in the interior. Such a profile is applied to the positions of the cold air dispersion wings 81 of the cold air dispersion device 80. The front panel 120 is installed in accordance with the interior surface of the rear wall of the compartment. of fresh food 63 and the cold air grill member 110 osta installed in such a manner as to exit from the front panel 120 outwardly into the interior of the dry food compartment 63. Accordingly, the grill member 110 and the device of cold air dispersion 80 come out as a whole in a certain way from the surface of the rear wall of the fresh food compartment 63; this allows the air released by the cold air dispersion device 80 to be < J? distributed in compartment 63 at an angle to the evaporator. In the upper part of duct member 130 is disposed a conduction path 132 within which cold air produced in evaporator 72b is directed. Within this driving path 132 is installed a control moderator 79 which regulates the amount of cold air flowing into the path 132 by opening and closing this path 132. In the upper portion of the duct member 130 are localized "the cold air vents 133 pair the special sub-compartment 63A, which extend outwardly from the conduction path 132 within the front surface of the duct member 130. The cold air vents 133 communicate with cold air discharge openings 123 for the special sub-part 63a, which are arranged on the front panel 120. The cold air discharge openings 123 for the special sub-part 63a face towards and provide the cold air to the interior of the special air gap 63a. < -I the fresh food compartment 63. Figure 11 is a rear perspective view of Figure 9 showing the coupled state of the duct member 130 and the front panel 120 »The rear surface of the duct member 130 is formed with a plurality of cold air guides 137 and between these guides 137 are "cold air direction vents 138" which pass through the duct member 130. The cold air direction vents 138 are located after the "air vent". correspond to the locations of the dispersion wings 81 of the cold air dispersion device 80. The cold air ducts 131 are formed vertically on the rear surface of the duct member. The cold air guides 137 divide the cold air ducts 131 into a first pipe portion 131a and a second pipe portion 131b on each side thereof. The two duct portions 131a, 131b are located by way of the conduction path 132 at the upper end, and by "J? O < Jel oornpartiinieto of vegetables 63B in the lower end. Each portion of duct 131A, 131B is directed into the cold air steering recess 138 through a first connector channel 135A and a second "connector channel" 135B, which are formed between the cold air guides 137. In the modality? l? stra < The three cold air vents 138 are provided in the upper, middle and lower regions, and three sets of the connecting channels 135A and 135 are arranged to correspond to the positions of the cold air vents 138. Each connector channel 135 has its upper portion recessed and its lower portion wider outwardly than the upper portion, thus allowing the cold air flowing down the duct portion 131 to be dispersed and directed towards the connecting channels 135 in? in a natural way The lower connector channel is wider to the outside and has a larger inlet than the intermediate connector channel, which is in turn wider than the upper conecfor channel, thus allowing an even distribution of cold air < Flowing into each respective air vent is the respective cold air 138. The sealing panel 150 is fixed in an air-tight manner to the duct member 130, and forms the rear wall of the cold air duct 131. duct 130 and sealing panel 150 are manufactured from insulating materials, such as polystyrene foam, and minimize heat transfer loss from cold air. Fig. 12 is a partially elongated perspective view of a pair of air dispersion wings 81 of the cold air dispersing device 80. The dispersing device < The cold air 80 consists of a rotary arrow 85 and three sets of pairs of cold air dispersion wings Rl. The pair of cold air dispersion wings 81 is disposed along the rotary arrow 85, and are separated from each other by a predetermined space. Each pair of wings of cold air dispersion 81 consists of a first wing RIA and a second wing 81E. The first and second wings 81A, 81B are each formed around the arrow 85 in a spiral and extend along "Arrow 35 by a predetermined distance" The pair of wings of cold air dispersion 81 performs at both a double spiral structure. In such an arrangement, the cold air conveyed from the cold air vent 138 to the cold air dispersing device 80, is released uniformly into the fresh food compartment being dispersed, from top to bottom and from left to right, depending on the angle of collision between the cold air and the wing surface. Moreover, there is also a portion of the air? cold ejected outward in a straight direction without striking any wing surface, as long as there is sufficient space between the first wing 81A and the second wing 81 B. Moreover, the angle at which cold air is discharged into the food compartment The fresh air depends on the angular position of the rotary arrow 85, which means that when the arrow is rotated by the drive motor 125, the cold air is disconnected uniformly towards all directions (left, right, up and down).; and cold air can be concentrated towards a single specific direction by stopping the rotation of the rotating shaft 85. Within the fresh food compartment 63, as illustrated in FIG. 13, a plurality of temperature sensors 140 are arranged. It detects the temperature of the fresh food compartment 63 through these sensors 140 and if the temperature in the compartment 63 is not appropriate for the? 1 level of the desired cooling power by the user, the compressor 71 is activated and the Cooling operation is put into operation. Consequently, the cold air produced in the evaporator 72b of the fresh food container passes through the control inodedor 79 and then into the conduction path 132; the cold ie is then d 'spersa «Jo to the left and to the right by means of cold air guides 137. The cold air is expelled and discharged into the cold food compartment 63 and the vegetable compartment 63B through the first and second pipe portions 131a and 131b. A portion of the cold air is expelled into the special sub-chamber 63a through the cold air vents 133 and through the cold air discharge openings 123. In order to obtain a uniform distribution of cold air in the fresh food compartment 63, the cold air dispersion device 80 rotates by means of a drive motor 125 and the cold air provided in the mi or flows according to the inclined surfaces of each spiral wing 8 la, 81b and is dispersed in all directions (left , right, up and down) in the fresh food compartment 63, as illustrated in Figure 13. As a result, a uniform temperature is obtained within the fresh food compartment 63 by eliminating regions that are normally deprived of cold air. The cold air dispersing device 80 can change the direction of its cold air discharge by diverting its angular position from its rotation. and? achieves a uniform distribution of cold air in all directions thanks to the angle of discharge of the continuously changing cold air created by the slowly rotating cold air dispersing device 80 activated by a driving motor 125. Moreover, when elevating In the case of a specific temperature within the fresh food compartment 63 for reasons such as that of storing a hot item, the driving motor 125 can ensure the angle «Je« Charge of the dispersion device «Je cold air 80 to concentrate all the cold air in this particular direction and effect a concentrated cooling of the region.

INDUSTRIAL FLPLICQBILIDFIL As explained above, in accordance with the present invention, a cooler will be provided with a device for dispersing cold air that has spiral wings that provide uniform cooling in all four directions (left, right, up and down). ) and which can also effect a concentrated cooling of a specific region by means of an oont r olabl discharge angle.

Claims (1)

0 0 NQVEDRD DE Lñ INVENTION CLAIMS

1. - A refrigerator that includes a main body housing a fresh food compartment, and a cold-storage duct provided in a wall. "Jei fresh food compartment that has cold air discharge openings to the fresh food compartment for storage. Supply cold air des < an evaporator- dent ro < lol fresh food compartment, the refrigerator consists of: a rotating arrow; driving means for rotating said rotary arrow; and cold air dispersion wings mounted spatially over said rotating arrow near said openings. The discharge of cold air to divert the discharge angle of the cold air ejected into the fresh food compartment through the discharge openings. of cold air. ? .- The compliance refrigerator with La r ~ e? This is also due to the fact that said wings of cold spiral air dispersion form a structure in double spiral. 3. The refrigerator according to claim 1, further characterized in that said cold air discharge openings are arranged in a line with a predetermined space between one another and said cold air dispersion wings are arranged in correspondence to said cold air discharge openings. 4. The refrigerator according to claim 3, further characterized in that said wings of cold air dispersion leave from an interior wall of said composition "Fresh food to the interior of said compartment of fresh food. 5. The refrigerator according to claim 4, which further comprises a cold air grill of a partially cylindrical shape, which is formed with said cold air discharge openings, said cold air grill is disposed throughout of said rotating arrow.