Cool air supply structure of refrigerator
Technical field
The present invention relates to a kind of cool air supply structure of refrigerator, particularly relate to and a kind ofly can cold air evenly is provided rapidly and can make the cool air supply structure of refrigerator of storage space utilization rate maximum to whole storage space.
Background technology
The cool air supply structure of refrigerator front view of prior art when Fig. 1 opens for refrigerator doors.When Fig. 2 closes for refrigerator doors along the transverse cross-sectional view of A-A ' line among Fig. 1.Fig. 3 is the transverse cross-sectional view along B-B ' line among Fig. 1.As Fig. 1, Fig. 2 and shown in Figure 3, the body 2 that forms the refrigerator profile is made of inner casing 4 and shell 6.Be placed with between inner casing 4 and the shell 6 can be heat insulation heat-barrier material.This thermal wall is divided into rear wall 2a, left side wall 2b and right side wall 2c.The front end of refrigerator body 2 is body front 8.Inner casing 4 is made of back side 4a, left surface 4b and right flank 4c, and its outside has expansion mouth 5.The space that is formed by inner casing 4 is the storeroom S that can store food.Shelf 20 can laterally be divided into several storage spaces with storeroom S, and is located on left surface 4b and the right flank 4c, therefore food can be placed on the shelf 20 and preserve.The bottom of storeroom S has the fruit and vegetable box 21 of placing fruit and vegetable.The left and right sides of the rear wall 2a of refrigerator body 2 is provided with a pair of cold duct 22.Cold duct 22 can be carried not shown by cold air that refrigerating chamber provided.And as shown in Figure 3, cold duct 22 protrudes with respect to back side 4a.Cold gas exhausting outlet 24 is to be provided with corresponding to cold duct 22 in the storage space of being divided by shelf 20.Cold gas exhausting outlet 24 is the delivery outlets of discharging cold air from cold duct 22 to storeroom S.C among Fig. 1 represents the flow direction of cold air.The right side of Fig. 1 is a refrigerator doors 10.Refrigerator doors 10 and body 2 are the same all to be to be made of thermal wall, thereby can cut off and extraneous heat exchange.Refrigerator doors 10 constitutes storeroom S with inner casing 4, and can open and close storeroom S.Be provided with the leakproof band of gas 12 around the inboard of refrigerator doors 10.When refrigerator doors 10 was closed, the leakproof band of gas 12 sticked together hermetically storing chamber S and cold air is not leaked outside with the body front 8 of refrigerator body 2.The inboard of the leakproof band of gas 12, promptly refrigerator doors 10 left and right sides are provided with a pair of refrigerator doors neck bush 14, and it protrudes to storeroom S direction.As shown in Figure 2, when refrigerator doors 10 was closed, this was connected to the expansion mouth 5b of left surface 4b and the expansion mouth 5c of right flank 4c to refrigerator doors neck bush 14, and has longitudinal space between the two.And, accompany door grate 16 on the refrigerator doors neck bush 14, can place food on it, can improve the utilization rate of storage space like this.As shown in Figure 1, the cold air that enters by cold duct 22 is in cold gas exhausting outlet 24 is transported to storeroom S.Cold gas exhausting outlet 24 is positioned at the storage space top of being divided by shelf 20 separately, and the cold air of discharging from cold gas exhausting outlet 24 forms cold airflow C along the direction shown in the arrow.That is, the cold air that flows to the bottom from the storage space top that is provided with cold gas exhausting outlet 24 and the hot-air of rising form convection current, thereby make the food in the storeroom S keep low-temperature condition.Because cold gas exhausting outlet 24 is positioned on the 4a of the back side, therefore, cold airflow C then concentrates on the rear portion and the centre of shelf 20.And the cold air of discharging from cold gas exhausting outlet 24 flows to expansion mouth 5b, the 5c and the space between the refrigerator doors neck bush 14 of left and right side via storeroom S.But there is following problem in this cool air supply structure of refrigerator: at first, because cold gas exhausting outlet 24 is arranged on the back side 4a of storeroom S, so it can not offer cold air whole storeroom S equably.Promptly the cold air of discharging from the cold gas exhausting outlet 24 that is arranged at back side 4a concentrates on the rear portion and the middle part of shelf 20, places such as the leading section of the shelf 20 far away apart from cold gas exhausting outlet 24 and door grate 16 then can not obtain sufficient cold air, therefore, produce surfusion in the place that cold air is concentrated, do not have the part of sufficient cold air then to produce chilly phenomenon, thereby storeroom S cold air occurred and supply uneven problem.And, this refrigerator has only rear wall 2a one place to be provided with cold duct 22, therefore, if think more to storeroom S supply cold air, the volume of cold duct 22 must be big, the result just makes cold duct 22 form the structure that is protrusion with respect to back side 4a, has so just reduced the usage space of storeroom S.In addition, when the cold air of storeroom S enters expansion mouth 5b, the 5c of left and right side 4b, 4c and the space between the refrigerator doors neck bush 14 can with the outside air generation heat exchange by the leakproof band of gas 12, thereby the energy loss problem appears.Promptly, the material of the leakproof band of gas 12 is a rubber, its thermal insulation is not fine, therefore, when the space between expansion mouth 5b, 5c and the refrigerator doors neck bush 14 enters cold air from storeroom S, it may carry out heat exchange by the high temperature air in the leakproof band of gas 12 and the external world, thereby occurs increasing problem owing to energy loss causes power consumption.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of can cold air evenly promptly be provided and can make to whole storage space to storage space the cool air supply structure of refrigerator that the cold duct volume of cold air is minimum and have maximum storage space and can prevent to occur between the left and right sides sidewall of refrigerator doors and body the cooling gas leakage phenomenon is provided.
In order to achieve the above object, cool air supply structure of refrigerator of the present invention comprises the storeroom of preservable food; Be provided with and do not protrude from and have back side cold duct from the cold gas exhausting outlet of cold air to storeroom that to discharge on the storeroom back side; Reach to be provided with and not protrude from and have side cold duct from the cold gas exhausting outlet of cold air to storeroom that to discharge on storeroom left and right side or one of them side; Described side cold duct is arranged at the anterior of storeroom left and right side or one of them side and closes on refrigerator doors; Be connected with surperficial consistent refrigerator pipe drive cap on the described back side and the side cold duct with inner casing; Wherein the thickness of side refrigerator pipe drive cap is greater than the throat width in the space that is formed by left and right sides expansion mouth and refrigerator doors neck bush, thereby can be with the inlet seal in space and the cold air of storeroom is not leaked outside.
Cool air supply structure of refrigerator of the present invention all can be discharged cold air at each face of storeroom, thereby can evenly and promptly provide cold air to whole storeroom.And eliminated the interior cold air dead angle of storeroom, therefore can take good care of all food freshly.In addition, it can provide cold air by the cold duct that is arranged on each face, can make the cold duct size decreases like this, thereby can make the actual usage space maximum in the storeroom.
Description of drawings
Below in conjunction with the drawings and specific embodiments cool air supply structure of refrigerator of the present invention is elaborated.
The cool air supply structure of refrigerator front view of prior art when Fig. 1 opens for refrigerator doors.
When Fig. 2 closes for refrigerator doors along the transverse cross-sectional view of A-A ' line among Fig. 1.
Fig. 3 is the transverse cross-sectional view along B-B ' line among Fig. 1.
Cool air supply structure of refrigerator front view of the present invention when Fig. 4 opens for refrigerator doors.
When Fig. 5 closes for refrigerator doors along the transverse cross-sectional view of A-A ' line among Fig. 4.
Fig. 6 is the transverse cross-sectional view along B-B ' line among Fig. 5.
The specific embodiment
As Fig. 4, Fig. 5 and shown in Figure 6, the body 52 that forms the refrigerator profile is made of inner casing 54 and shell 56.Be placed with heat-barrier material between inner casing 54 and shell 56, it can be used to prevent and extraneous heat exchange.The outside of inner casing 54 has expansion mouth 55, and it is that inner casing forms to extending out out.Thermal wall is divided into rear wall 52a, left side wall 52b and right side wall 52c.The space that is formed by inner casing 54 is the storeroom S that can preserve food.Storeroom S comprises back side 54a, left surface 54b and right flank 54c, and expansion mouth 55 is divided into left surface 55b and right flank 55c.Storeroom S laterally divided storage space and be sandwiched in the not shown shelf 70 that is arranged in left surface 54b and right flank 54c hole and be used for placing and preserve food.And the bottom of storeroom S is provided with can place fruit and vegetable and make it keep fresh fruit and vegetable box 71.Rear wall 52a and left and right sides sidewall 52b, 56c are provided with back side cold duct 72, left surface cold duct 76 and right flank cold duct 80.These cold ducts are passages of carrying cold air.Rear wall 52a is provided with a pair of back side cold duct 72 about going up.Left surface cold duct 76 is to be provided with along the top of left surface 54b and left surface expansion mouth 55b from the top of back side 54a to form, and right flank cold duct 80 is to be provided with along the top of right flank 54b and right flank expansion mouth 55c from the top of the back side 54a of storeroom S to form.And cold duct 72,76,80 is connecting cold gas exhausting outlet 74,78,82 and refrigerator pipe drive cap 73,77,81.Cold gas exhausting outlet the 74,78, the 82nd, the cold air that cold duct 72,76,80 is provided enters the delivery outlet of storeroom S.Be provided with the cold air tap 84 that cold air can be provided to refrigerator doors cold duct 86 on right flank refrigerator pipe drive cap 81 tops.
As shown in Figure 6, be connected the refrigerator pipe drive cap the 73,77, the 81st on the cold duct 72,76,80, surperficial consistent with inner casing 54.The refrigerator doors 60 that opens and closes storeroom S is positioned at the right side of Fig. 4.Around the inboard of refrigerator doors 60, be provided with the leakproof band of gas 62.When refrigerator doors was closed, the leakproof band of gas 62 sticked together hermetically storing chamber S and the cold air among the storeroom S is not leaked outside with body front 58.The inboard of the leakproof band of gas 62 is provided with a pair of refrigerator doors neck bush 64, and protrude to storeroom S direction its left and right sides along refrigerator doors 60.Door grate 66 is clipped in not shown this in the hole on the refrigerator doors neck bush 64, and is provided with several door grates 66, can preserve food on these door grates.When refrigerator doors 60 is closed, there is space A between refrigerator doors neck bush 64 and left surface expansion mouth 55b and the right flank expansion mouth 55c.The refrigerator pipe drive cap 77 on the left surface cold duct 76 and the thickness of the refrigerator pipe drive cap 81 on the right flank cold duct 80 are d, therefore, when left surface refrigerator pipe drive cap 77 and left surface cold duct 76 and right flank refrigerator pipe drive cap 81 combine with right flank cold duct 80, space A and storeroom S can be kept apart.And, below refrigerator doors 60 door grate 66 topmost, be provided with a cold duct 86., by door cold gas exhausting outlet 88 cold air is discharged among the storeroom S then to door cold duct 86 from cold gas exhausting outlet 84 input cold air.
Cool air supply structure of refrigerator of the present invention is to be come to storeroom S supply cold air by the cold gas exhausting outlet that is arranged at back side 54a and left and right side 54b, 54c.But, even by back side 54a and left surface 54b or by back side 54a and right flank 54c the structure that forms is set and also can reaches purpose of the present invention.Equally, left and right sides cold duct 72,76 of the present invention is arranged on left and right side expansion mouth 55b, 55c.But, also can be located at any position of left surface 54b or right flank 54c.
According to the present invention, the cold air that provides from not shown refrigerating chamber is input to back side cold duct 72 and the left and right side cold duct 76,80, is discharged among the storeroom S along cold air flow direction shown in Figure 1 by back side cold duct 74 then.Back side cold gas exhausting outlet 74 is arranged at the top of each storage space of being divided by shelf 70, and as shown in Figure 4, the cold air of discharging from back side cold gas exhausting outlet 74 flows with the parabolic type track.And, concentrate rear side and the centre that is provided to shelf 70 by the cold air that back side cold gas exhausting outlet 74 is discharged.Simultaneously, the cold air of discharging by the cold gas exhausting outlet 78,82 that is arranged on the left and right side cold duct 76,80 comes cold storage chamber S along cold air flow direction shown in Figure 4.Promptly the cold air of discharging by left and right side cold gas exhausting outlet 78,82 concentrates the leading section that is provided to shelf 70 and left and right sides by inside part, therefore, the cold air of discharging from two sides 54b, 54c can arrive the dead angle the storeroom S that single cold air institute that discharges from back side 54a can not fully cool off, and can make whole storeroom S cooling evenly rapid like this.And a part of cold air of carrying by right flank cold duct 80 can move to door cold duct 86, and passes through door cold gas exhausting outlet 88 to door grate 66 centralizedly supplies.
Provide by back side 54a and two sides 54b, 54c since enter the cold air of storeroom S, so compared with the prior art the volume of each cold duct obviously is much smaller.Therefore, be provided with cold duct 72,76,80 o'clock can not will its protrude from the inner surface of storeroom S, can greatly improve the space availability ratio of storeroom S like this.And, as shown in Figure 5, because left and right side refrigerator pipe drive cap 77,81 can be blocked the inlet in the space that is formed by refrigerator doors neck bush 64 and left and right side expansion mouth 55b, 55c when constituting cold duct 72,76,80.Promptly since the thickness d of left and right side refrigerator pipe drive cap 77,81 greater than the throat width of space A, so it can not leak outside the cold air of storeroom S the inlet seal of space A.