WO2017067189A1 - 冰箱及其风道装置 - Google Patents

冰箱及其风道装置 Download PDF

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Publication number
WO2017067189A1
WO2017067189A1 PCT/CN2016/086181 CN2016086181W WO2017067189A1 WO 2017067189 A1 WO2017067189 A1 WO 2017067189A1 CN 2016086181 W CN2016086181 W CN 2016086181W WO 2017067189 A1 WO2017067189 A1 WO 2017067189A1
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WO
WIPO (PCT)
Prior art keywords
air duct
hole
wall
substrate portion
air
Prior art date
Application number
PCT/CN2016/086181
Other languages
English (en)
French (fr)
Inventor
夏恩品
张慧敏
张�浩
朱小兵
Original Assignee
青岛海尔股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛海尔股份有限公司 filed Critical 青岛海尔股份有限公司
Priority to AU2016343391A priority Critical patent/AU2016343391B2/en
Priority to EP16856630.5A priority patent/EP3367023B1/en
Priority to US15/748,194 priority patent/US10386107B2/en
Priority to NZ739268A priority patent/NZ739268A/en
Publication of WO2017067189A1 publication Critical patent/WO2017067189A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures

Definitions

  • the present invention relates to a refrigerating and freezing apparatus, and more particularly to a refrigerator and a duct device thereof.
  • Air-cooled refrigerators typically have an evaporator in a separate cooling chamber and a duct on the rear side of the storage compartment to deliver cooling air from the cooling chamber to the storage compartment.
  • the damper is disposed in the air passage for conducting, shielding the air passage, or adjusting the ventilation area of the air passage to adjust the temperature of the storage compartment.
  • the damper of the prior art is usually an electric damper.
  • the electric damper is adjusted accurately and has strong controllability, but its cost is high, the structure is complicated, the control is cumbersome, and it also consumes a certain amount of electric energy during use.
  • Another object of the present invention is to provide a refrigerator including the air duct device.
  • the present invention provides a duct device for a refrigerator, comprising a duct cover disposed in front of a rear wall of the tank body and a duct disposed between the tank body and the duct cover
  • the foam, the air duct foam defines a duct, and further includes at least one damper
  • the damper includes: a base portion rotatably abutting against an inner wall of the duct cover, and the base portion is provided with at least one curved guide hole, at least part of the arc a plurality of limiting portions are formed on the hole wall of the guiding hole, and a long through hole parallel to the curved guiding hole is further formed on the substrate portion, and the long through hole is opened on a side close to the hole wall of the finite portion.
  • a shielding portion extending rearward from the edge of the substrate portion into the air passage, and configured to adjust a ventilation area of the air passage when rotating with the substrate portion, and the inner wall of the air duct cover extends rearward with at least one guiding column
  • the guide post is inserted into the corresponding curved guide hole, and an interference fit is used with the curved guide hole to elastically deform the wall of the arc guide hole near the long through hole when the substrate portion rotates, thereby guiding
  • the column enters a limit to limit Rotational freedom of the plate portion.
  • the shielding portion is an arcuate baffle extending rearward from an edge of the substrate portion.
  • the duct foam is provided with an arc-shaped relief opening that allows the curved baffle to pass through.
  • the substrate portion has a disc-like structure; and an inner wall of the air duct cover is formed with an outwardly projecting annular rib so that the substrate portion is rotatably disposed radially inward of the annular rib.
  • chord length of the curved baffle is greater than the spacing between the lateral sidewalls of the air duct; and at least one lateral side wall of the air duct is provided with an arcuate notch matching the outer diameter of the curved baffle.
  • the number of the arc guiding holes is two, and one hole wall of one of the arc guiding holes is provided with a plurality of limiting portions; And the number of guide columns is two and is set at 180° apart.
  • the limiting portion is a recess recessed from a hole wall of the arcuate guiding hole toward a direction away from the arc guiding hole.
  • the front surface of the substrate portion is provided with a circular knob; and the air passage cover is provided with a circular retaining hole for allowing the circular knob to protrude.
  • the circular knob and the substrate portion are a unitary piece formed by an integral molding process.
  • the present invention provides a refrigerator comprising a tank body, a storage compartment defined by the tank body, and a cooling chamber provided with an evaporator, and further comprising: the air duct according to any of the above A device configured to convey cooling air from the cooling chamber to the storage compartment through a duct of the duct device and to regulate a flow of cooling air entering the interior of the storage compartment by the damper.
  • the refrigerator and the air duct device of the present invention use a damper that can manually adjust the ventilation area of the air duct, and consumes less power than the electric damper.
  • the damper is provided with an arc-shaped guiding hole, and a limited position is arranged on the wall of the hole, so that the adjustment process is more accurate and reliable.
  • the long through hole is arranged to force the wall of the curved guiding hole to elastically deform when the guiding column moves in the curved guiding hole, so that the curved guiding hole can clamp the guiding column to avoid the air passage caused by the damper being randomly displaced. The area of the wind has changed.
  • the damper is provided with two arc-shaped guide holes and two guide posts to prevent the rotation of the substrate portion from being skewed.
  • the circular knob protrudes from the circular relief hole of the air duct cover to the interior of the storage compartment, and the user can turn the hand into the storage room to twist the knob to complete the adjustment process, which is very convenient to operate.
  • the circular knob and the base portion are designed as an integral piece, which simplifies the production and assembly process of the damper.
  • FIG. 1 is a schematic structural view of a duct device for a refrigerator according to an embodiment of the present invention
  • Figure 2 is an exploded perspective view of the air duct device of Figure 1;
  • Figure 3 is a schematic structural view of a damper in the air duct device shown in Figure 1;
  • FIG. 4 is a schematic structural view of a refrigerator in accordance with an embodiment of the present invention.
  • FIG. 1 is a schematic structural view of a duct device for a refrigerator according to an embodiment of the present invention
  • FIG. 2 is an exploded perspective view of the duct device of FIG. 1
  • FIG. 3 is a structure of a damper in the duct device of FIG. schematic diagram.
  • the tank body defines a storage compartment.
  • the rear side of the storage compartment is provided with a duct device for conveying cooling air therein To the air duct in the storage room.
  • the air duct device 101 can generally include a duct cover 200, a duct foam 300, and at least one damper 100.
  • the air duct cover 200 is disposed in front of the rear wall of the tank body and spaced apart from the tank body, and the duct foam 300 is disposed between the duct cover 200 and the tank body. It is a foamed layer of a hollow structure in which an air duct 400 having a predetermined direction, an inlet, and a plurality of outlets is formed.
  • the damper 100 can regulate the flow of cooling air of the air duct 400, thereby regulating the temperature of the storage compartment.
  • the damper 100 includes a base portion 110 and a blocking portion 120.
  • the substrate portion 110 rotatably abuts against the inner wall of the air duct cover 200, and the shielding portion 120 extends rearward from the edge of the substrate portion 110 into the air passage 400 to adjust the air passage 400 as it rotates with the base portion 110. Ventilation area.
  • the substrate portion 110 and the shielding portion 120 may be an integrally formed structure. After the adjustment is completed, the substrate portion 110 and the shielding portion 120 should be stably fixed to avoid a change in the ventilation area, resulting in large fluctuations in the temperature inside the storage compartment.
  • the air duct device 101 of the embodiment of the present invention is particularly provided with arcuate guide holes and guide posts 230 that cooperate with each other.
  • At least one curved guiding hole is disposed on the substrate portion 110 (preferably two, as shown in FIG. 3, respectively, an arc guiding hole 111 and an arc guiding hole 113), and at least a part of the arc guiding hole (such as an arc)
  • a plurality of limiting portions 115 are formed on the wall of the hole of the shape guiding hole 111).
  • the substrate portion 110 is further provided with a long through hole 112 parallel to the curved guiding hole 111.
  • the long through hole 112 is opened near the side of the hole wall where the limiting portion 115 is disposed, as shown in FIG.
  • the limiting portion 115 is disposed on a side wall wall near the center of the substrate portion 110.
  • the guide post 230 extends rearward from the inner wall of the duct cover 200 and is inserted into the corresponding curved guide hole 111.
  • the guide post 230 and the curved guide hole 111 are provided with an interference fit to cause the wall of the arc-shaped guide hole 111 close to the long through hole 112 (ie, the wall of the hole where the finite portion 115 is disposed) to occur when the substrate portion 110 rotates.
  • the elastic deformation causes the guide post 230 to enter a limiting portion 115 to define the rotational freedom of the substrate portion 110 so that the substrate portion 110 does not easily rotate.
  • the extended length of the curved guide hole should be such that when the guide post 230 is at one end thereof, the shutter 120 is completely opened by the air passage 400, and when the guide post 230 is at the other end thereof, the shield 120 is completely shielded from the air passage 400.
  • the plurality of limiting portions 115 are arranged along the circumferential direction of the hole wall to form a plurality of different adjustment gear positions, so that the adjustment process is more precise.
  • an elongated through hole 114 may be disposed in the vicinity of the end of the curved guiding hole 113, so that when the guiding post 230 is moved to the end, the wall of the hole near the elongated through hole 114 is elastically deformed to be clamped.
  • Corresponding guide post 230 When the number of the arcuate guide holes is two, the number of the guide posts 230 to be engaged therewith is also two, and is disposed at intervals of 180°, so that the rotation of the substrate portion 110 is more stable without deflection.
  • the limiting portion 115 may be a recessed portion recessed from the hole wall of the curved guiding hole 111 away from the curved guiding hole 111, and the limiting portion 115 may be disposed on the two longer holes of the curved guiding hole 111. It is also possible to provide the stopper 115 only on one of the hole walls (refer to FIG. 3).
  • the shielding portion 120 may be an arcuate baffle extending rearward from the edge of the substrate portion 110, and the chord length of the curved baffle should be not less than the spacing between the lateral sidewalls of the air duct 400 so that it is When turning to a certain angle (both ends of the curved baffle The air line 400 can be completely enclosed when the line is perpendicular to the lateral side walls of the air duct 400. Further, in order to enable the curved baffle to achieve a better sealing effect when the air duct 400 is completely closed, the chord length of the curved baffle may be larger than the distance between the lateral two side walls of the air duct 400.
  • the shaped baffle can still rotate within the air duct 400, and at least one of the lateral side walls of the air duct 400 can be provided with an arcuate notch that matches the outer diameter of the curved baffle.
  • an arcuate notch may be formed on only one lateral side wall 310 as shown in FIG. 2, and no arcuate notch is formed on the lateral side wall 320.
  • the air duct 400 is defined by the duct foam 300, and the base portion 110 of the damper 100 abuts against the inner wall of the duct cover 200 between the duct foam 300 and the duct cover 200. That is, the substrate portion 110 is located outside the air duct 400.
  • the duct foam 300 may be provided with an arc-shaped relief port 330 that allows the arcuate baffle to pass therethrough.
  • the substrate portion 110 may be a disk-like structure, and the inner wall of the air channel cover 200 may be formed with an outwardly projecting annular rib 220 so that the substrate portion 110 is rotatably disposed on the diameter of the annular rib 220 To the inside, the substrate portion 110 is better positioned.
  • a circular knob 130 may be disposed on the front surface of the substrate portion 110, and a circular relief hole 210 is disposed on the air duct cover 200 to allow the circular knob 130 to protrude out of the air passage 400 through the circular relief hole 210 and exposed
  • the storage room is indoors for manual adjustment by the user.
  • the circular knob 130 and the substrate portion 110 may be a unitary member formed by an integral molding process.
  • the duct device 101 further includes a cover plate 140 disposed rearward of the substrate portion 110 in parallel with the substrate portion 110 and secured to the duct foam 300.
  • the ends of the curved baffles abut against the surface of the cover plate 140 to avoid direct contact with the duct foam 300, damaging the duct foam 300 during rotation.
  • the refrigerator 10 is an air-cooled refrigerator including a tank body 600, a storage compartment defined by the tank body 600, a cooling chamber 105, and an evaporator disposed in the cooling chamber 105. 500 and the aforementioned duct assembly 101.
  • the air duct cover 200 is disposed in front of the rear wall of the tank body 600, and the duct foam 300 (not shown in FIG. 4) is disposed between the tank body 600 and the duct cover 200, and defines a duct. 400.
  • the air duct 400 communicates with the respective storage compartment and the cooling chamber 105 to transport the cooling air obtained by the evaporator 500 from the cooling chamber 105 to the respective storage compartments for the purpose of cooling.
  • the refrigerator 10 includes three storage compartments, namely a storage compartment 11, a storage compartment 12, and a storage compartment 13, in which case two dampers 100 may be provided.
  • a storage compartment 11 a storage compartment 12, and a storage compartment 13, in which case two dampers 100 may be provided.
  • the circular knob 130 of the damper 100 is exposed inside the storage compartment for manual adjustment by the user.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
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Abstract

一种冰箱及其风道装置（101），风道装置（101）包括风道盖板（200）、风道泡沫（300）和风门（100），风道泡沫（300）限定有风道（400）。风门（100）包括基板部（110），可转动地贴靠于风道盖板（200）内壁且设置有至少一个弧形导向孔（111、113），至少部分弧形导向孔（111、113）的孔壁上形成多个限位部（115），基板部（110）上还开设有与弧形导向孔（111、113）平行的长条通孔（112），其靠近设置有限位部（115）的孔壁一侧；遮挡部（120）从基板部（110）的边缘向后延伸至风道（400）内，在随基板部（110）旋转时调节风道（400）的通风面积；至少一个导向柱（230）从风道盖板（200）的内壁向后延伸并插入弧形导向孔（111、113），且与弧形导向孔（111、113）为过盈配合。

Description

冰箱及其风道装置 技术领域
本发明涉及冷藏冷冻装置，特别是涉及一种冰箱及其风道装置。
背景技术
风冷式的冰箱一般将蒸发器设置在一个独立的冷却室中，并在储物间室的后侧设置风道，以将冷却室内的冷却空气输送至储物间室。风门设置在风道中，用于导通、遮蔽风道，或者调节风道的通风面积，以调节储物间室的温度。
现有技术中的风门通常为电动风门。电动风门调节准确，可控性强，但其成本较高，结构复杂，控制繁琐，而且在使用过程中还会耗费一定的电能。
发明内容
本发明的一个目的是要解决现有技术存在的上述缺陷之一，提供一种无需使用电动风门的风道装置。
本发明的另一个目的是提供一种包括该风道装置的冰箱。
一方面，本发明提供了一种用于冰箱的风道装置，包括设置在箱体内胆的后壁前方的风道盖板和设置在箱体内胆与风道盖板之间的风道泡沫，风道泡沫限定有风道，还包括至少一个风门，风门包括：基板部，可转动地贴靠于风道盖板的内壁，基板部上设置有至少一个弧形导向孔，至少部分弧形导向孔的孔壁上形成有多个限位部，基板部上还开设有与弧形导向孔平行的长条通孔，且长条通孔靠近设置有限位部的孔壁的一侧开设；和遮挡部，从基板部的边缘向后延伸至风道内，并配置成在随基板部旋转时，调节风道的通风面积，并且，风道盖板的内壁向后延伸有至少一个导向柱，导向柱插入对应的弧形导向孔，且与弧形导向孔采用过盈配合，以在基板部旋转时，使弧形导向孔的靠近长条通孔的孔壁发生弹性形变，从而使导向柱进入一个限位部，以限定基板部的旋转自由度。
可选地，遮挡部为从基板部的边缘向后延伸的弧形挡板。
可选地，风道泡沫上开设有允许弧形挡板穿过的弧形让位口。
可选地，基板部为圆板状结构；且风道盖板的内壁形成有向外凸出的环形凸肋，以便基板部可转动地设置在环形凸肋的径向内侧。
可选地，弧形挡板的弦长大于风道的横向两侧壁的间距；且风道的至少一个横向侧壁上开设有与弧形挡板的外径相匹配的弧形缺口。
可选地，弧形导向孔的数量为两个，一个弧形导向孔的一个孔壁上设置有多个限位部； 并且导向柱的数量为两个，且相隔180°设置。
可选地，限位部为从弧形导向孔的孔壁朝远离弧形导向孔的方向凹进的凹陷部。
可选地，基板部的前表面设置有圆形旋钮；且风道盖板上开设有允许圆形旋钮伸出的圆形让位孔。
可选地，圆形旋钮与基板部为采用一体成型工艺制成的整体件。
另一方面，本发明提供了一种冰箱，包括箱体内胆、由箱体内胆限定出的储物间室和设置有蒸发器的冷却室，还包括：根据以上任一项的风道装置，其配置成通过风道装置的风道将冷却空气由冷却室输送至储物间室，并利用风门调节进入储物间室内的冷却空气的流量。
本发明的冰箱及其风道装置，使用可手动调节风道通风面积的风门，相比电动风门无需耗电。风门设置有弧形导向孔，其孔壁上设置有限位部，使调节过程更加精确可靠。长条通孔的设置可使导向柱在弧形导向孔内运动时，迫使弧形导向孔的孔壁弹性形变，使弧形导向孔能够夹紧导向柱，避免因风门随意移位导致风道的出风面积出现变化。
进一步地，本发明的风道装置中，风门设置了两个弧形导向孔和两个导向柱，避免基板部的旋转出现偏斜。另外，圆形旋钮从风道盖板的圆形让位孔处伸出至储物间室内部，用户可将手深入储物间室内扭动旋钮完成调节过程，操作十分方便。圆形旋钮与基板部被设计为一体成型的整体件，简化了风门的制作和装配流程。
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：
图1是根据本发明一个实施例的用于冰箱的风道装置的结构示意图；
图2是图1所示风道装置的分解示意图；
图3是图1所示风道装置中的风门的结构示意图；
图4是根据本发明的一个实施例的冰箱的结构示意图。
具体实施方式
图1是根据本发明一个实施例的用于冰箱的风道装置的结构示意图，图2是图1所示风道装置的分解示意图，图3是图1所示风道装置中的风门的结构示意图。对于风冷式的冰箱，其箱体内胆限定有储物间室。储物间室的后侧设置有风道装置，其内具有用于将冷却空气输送 至储物间室内的风道。如图1至图3所示，风道装置101一般性地可包括风道盖板200、风道泡沫300和至少一个风门100。其中，风道盖板200设置在箱体内胆的后壁的前方，且与箱体内胆之间相隔一定间距，风道泡沫300设置在风道盖板200与箱体内胆之间，为中空结构的发泡层，其内形成有具有预定走向、一个进口和多个出口的风道400。风门100可调节风道400的冷却空气流量，进而调控储物间室的温度。
风门100包括基板部110和遮挡部120。基板部110可转动地贴靠于风道盖板200的内壁，遮挡部120从基板部110的边缘向后延伸至风道400内，以在其随基板部110旋转时，调节风道400的通风面积。基板部110和遮挡部120可为一体成型结构。在调节完毕后，基板部110和遮挡部120应被稳固定位，以避免通风面积出现变化，导致储物间室内部温度产生较大波动。为此，本发明实施例的风道装置101特别设置有相互配合的弧形导向孔和导向柱230。
其中，至少一个弧形导向孔设置在基板部110上(优选为两个，如图3所示，分别为弧形导向孔111和弧形导向孔113)，至少部分弧形导向孔(如弧形导向孔111)的孔壁上形成有多个限位部115。基板部110上还开设有与弧形导向孔111平行的长条通孔112，长条通孔112靠近设置有限位部115的孔壁的一侧开设，如图3所示，优选将多个限位部115设置在靠近基板部110中心的一侧孔壁上。导向柱230从风道盖板200的内壁向后延伸，并插入对应的弧形导向孔111。导向柱230与弧形导向孔111采用过盈配合，以在基板部110旋转时，使弧形导向孔111的靠近长条通孔112的孔壁(即设置有限位部115的孔壁)发生弹性形变，从而使导向柱230进入一个限位部115，以限定基板部110的旋转自由度，使基板部110不会轻易转动。
弧形导向孔的延伸长度应设置为在导向柱230处于其一端时，使遮挡部120完全打开风道400，而在导向柱230处于其另一端时，使遮挡部120完全遮蔽风道400。多个限位部115沿孔壁的周向排列，形成多个不同的调节档位，使调节过程更加精确。另外，弧形导向孔113的端部附近也可设置一个细长通孔114，以使导向柱230运动至该端部时，使靠近细长通孔114的孔壁发生弹性形变，以夹紧对应的导向柱230。弧形导向孔的数量为两个时，与之配合的导向柱230的数量也为两个，且相隔180°设置，使得基板部110的转动地更加平稳而不会出现偏斜。
限位部115可为从弧形导向孔111的孔壁朝远离弧形导向孔111的方向凹进的凹陷部，弧形导向孔111的两个较长的孔壁上均可设置限位部115，也可仅在其中一个孔壁上设置限位部115(参考图3)。
在一些实施例中，遮挡部120可为从基板部110的边缘向后延伸的弧形挡板，弧形挡板的弦长应不小于风道400的横向两侧壁的间距，以便其在转动至一定角度时(弧形挡板的两端 连线垂直于风道400的横向侧壁时)能够完全封闭风道400。进一步地，为了使弧形挡板在完全封闭风道400时，能够达到较好的密封效果，弧形挡板的弦长可大于风道400的横向两侧壁的间距，此时为使弧形挡板仍可在风道400内转动，风道400的至少一个横向侧壁上可开设有与弧形挡板的外径相匹配的弧形缺口。为简便起见，可如图2所示仅在一个横向侧壁310上开设弧形缺口，横向侧壁320上不开设弧形缺口。
前文已述，风道是400由风道泡沫300限定出的，而风门100的基板部110是贴靠在风道盖板200的内壁，位于风道泡沫300与风道盖板200之间，也就是说基板部110是位于风道400之外的。因此，为了使遮挡部120能够穿过风道泡沫300进入风道400，在一些实施例中，风道泡沫300上可开设有允许弧形挡板穿过的弧形让位口330。为了便于制作，基板部110可为圆板状结构，而风道盖板200的内壁可形成有向外凸出的环形凸肋220，以便基板部110可转动地设置在环形凸肋220的径向内侧，使基板部110得到更好地定位。基板部110的前表面可设置圆形旋钮130，并且风道盖板200上设置有圆形让位孔210，以允许圆形旋钮130通过圆形让位孔210伸出风道400并露出在储物间室内，以便用户手动调节。为了简化加工流程，圆形旋钮130与基板部110可为采用一体成型工艺制成的整体件。
在一些实施例中，风道装置101还包括一个盖板140，其与基板部110平行地设置在基板部110的后方，并固定在风道泡沫300上。弧形挡板的端部抵靠于盖板140的表面，以避免与风道泡沫300直接接触，在转动过程中损害风道泡沫300。
图4是根据本发明的一个实施例的冰箱的结构示意图。结合图1至图4，冰箱10为风冷式冰箱，其包括箱体内胆600，由箱体内胆600限定出的储物间室、冷却室105、设置在冷却室105内的蒸发器500以及前述的风道组件101。其中风道盖板200设置在箱体内胆600的后壁前方，风道泡沫300(图4未示出)设置在箱体内胆600与风道盖板200之间，并限定有风道400。风道400连通各个储物间室与冷却室105，以便将蒸发器500制取的冷却空气由冷却室105输送至各储物间室，达到制冷的目的。
在一些实施例中，例如图4所示，冰箱10包括三个储物间室，分别为储物间室11、储物间室12和储物间室13，此时可设置两个风门100，分别用于调节进入储物间室11和储物间室12的冷却空气的流量。风门100的圆形旋钮130露出在储物间室内部，以便于用户手动调节。
至此，本领域技术人员应认识到，虽然本文已详尽示出和描述了本发明的多个示例性实施例，但是，在不脱离本发明精神和范围的情况下，仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此，本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。

Claims (10)

  1. 一种用于冰箱的风道装置，包括设置在箱体内胆的后壁前方的风道盖板和设置在所述箱体内胆与所述风道盖板之间的风道泡沫，所述风道泡沫限定有风道，其特征在于还包括至少一个风门，所述风门包括：
    基板部，可转动地贴靠于所述风道盖板的内壁，所述基板部上设置有至少一个弧形导向孔，至少部分所述弧形导向孔的孔壁上形成有多个限位部，所述基板部上还开设有与所述弧形导向孔平行的长条通孔，且所述长条通孔靠近设置有所述限位部的孔壁的一侧开设；和
    遮挡部，从所述基板部的边缘向后延伸至所述风道内，并配置成在随所述基板部旋转时，调节所述风道的通风面积，并且，
    所述风道盖板的内壁向后延伸有至少一个导向柱，所述导向柱插入对应的所述弧形导向孔，且与所述弧形导向孔采用过盈配合，以在所述基板部旋转时，使所述弧形导向孔的靠近所述长条通孔的孔壁发生弹性形变，从而使所述导向柱进入一个所述限位部，以限定所述基板部的旋转自由度。
  2. 根据权利要求1所述的风道装置，其特征在于，
    所述遮挡部为从所述基板部的边缘向后延伸的弧形挡板。
  3. 根据权利要求2所述的风道装置，其特征在于，
    所述风道泡沫上开设有允许所述弧形挡板穿过的弧形让位口。
  4. 根据权利要求2所述的风道装置，其特征在于，
    所述基板部为圆板状结构；且
    所述风道盖板的内壁形成有向外凸出的环形凸肋，以便所述基板部可转动地设置在所述环形凸肋的径向内侧。
  5. 根据权利要求2所述的风道装置，其特征在于，
    所述弧形挡板的弦长大于所述风道的横向两侧壁的间距；且
    所述风道的至少一个横向侧壁上开设有与所述弧形挡板的外径相匹配的弧形缺口。
  6. 根据权利要求1所述的风道装置，其特征在于，
    所述弧形导向孔的数量为两个，一个所述弧形导向孔的一个孔壁上设置有所述多个限位部；并且
    所述导向柱的数量为两个，且相隔180°设置。
  7. 根据权利要求1所述的风道装置，其特征在于，
    所述限位部为从所述弧形导向孔的孔壁朝远离所述弧形导向孔的方向凹进的凹陷部。
  8. 根据权利要求1所述的风道装置，其特征在于，
    所述基板部的前表面设置有圆形旋钮；且
    所述风道盖板上开设有允许所述圆形旋钮伸出的圆形让位孔。
  9. 根据权利要求8所述的风道装置，其特征在于，
    所述圆形旋钮与所述基板部为采用一体成型工艺制成的整体件。
  10. 一种冰箱，包括箱体内胆、由所述箱体内胆限定出的储物间室和设置有蒸发器的冷却室，其特征在于还包括：
    根据权利要求1-9中任一项所述的风道装置，其配置成通过所述风道装置的风道将冷却空气由所述冷却室输送至所述储物间室，并利用所述风门调节进入所述储物间室内的冷却空气的流量。
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