CN105546918B - Air channel structure and refrigerator - Google Patents

Air channel structure and refrigerator Download PDF

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Publication number
CN105546918B
CN105546918B CN201610105498.7A CN201610105498A CN105546918B CN 105546918 B CN105546918 B CN 105546918B CN 201610105498 A CN201610105498 A CN 201610105498A CN 105546918 B CN105546918 B CN 105546918B
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China
Prior art keywords
channel
air
cold wind
guide channel
air outlet
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CN201610105498.7A
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Chinese (zh)
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CN105546918A (en
Inventor
张建
陈士发
张磊
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Hefei Hualing Co Ltd
Midea Group Co Ltd
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Hefei Hualing Co Ltd
Midea Group Co Ltd
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Priority to CN201610105498.7A priority Critical patent/CN105546918B/en
Publication of CN105546918A publication Critical patent/CN105546918A/en
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Classifications

    • 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
    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
    • F25D2317/0671—Inlet ducts
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
    • F25D2317/0672—Outlet ducts

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

Abstract

The present invention provides a kind of air channel structure and refrigerator, wherein, air channel structure includes：Air-supply passage, air-supply passage include mainstream channel and guide channel, and one end of guide channel is connected with mainstream channel, and the other end direction that cold wind flows into mainstream channel of guide channel is obliquely installed；Air outlet is arranged on the wall of inner container of refrigerator, and is connected with the other end of guide channel.In the technical solution, by the way that one end of guide channel is connected with mainstream channel, the other end direction that cold wind flows into mainstream channel is tilted, so that the cold wind in mainstream channel first passes through guide channel turnover, then it is flowed out from air outlet, reduce the coefficient of partial resistance of air channel structure, and then reduce the energy loss of cold wind air-flow, ensure the flow and flow rate of the cold wind sent into liner, effectively increase the refrigeration effect of refrigerator, and the generation of noise is correspondingly reduced, so as to improve the overall performance of product, improve its market competitiveness.

Description

Air channel structure and refrigerator
Technical field
The present invention relates to technical field of refrigeration equipment, in particular to a kind of air channel structure and refrigerator.
Background technology
At present, refrigerator class product in the market, as shown in Figure 1, its ducting outlet 2' is in similar 90 degree of right-angled bends substantially Formula designs so that the air-flow in air-supply passage 1' once turns over an angle of 90 degrees and sent by ducting outlet 2' into the liner 3' of refrigerator, so And since right-angled bend is larger to the resistance of air-flow, so as to reduce the flow and flow rate for sending the air-flow into liner 3', lead to ice The cold storage effect of case is poor, while also increases the generation of noise, reduces the overall performance of product, is unfavorable for its market and pushes away Extensively.
Therefore, how to propose a kind of reliable and low noise air channel structure of blowing, become current urgent problem to be solved.
Invention content
In order to solve the above-mentioned technical problem at least one, it is reliable it is an object of the present invention to provide a kind of air-supply and The air channel structure of low noise.
It is another object of the present invention to provide a kind of refrigerators with above-mentioned air channel structure.
To achieve the above object, the embodiment of first aspect present invention provides a kind of air channel structure, for refrigerator, packet It includes：Air-supply passage, the air-supply passage include mainstream channel and guide channel, one end of the guide channel and the major flow Road connects, and the other end direction that cold wind flows into the mainstream channel of the guide channel is obliquely installed；Air outlet, setting It is connected on the wall of inner container of the refrigerator, and with the other end of the guide channel.
The air channel structure that the embodiment of first aspect present invention provides, by the way that one end of guide channel and mainstream channel are connected It is logical, the other end direction that cold wind flows into mainstream channel is tilted and is connected with air outlet so that the cold wind in mainstream channel Guide channel turnover is first passed through, is then flowed out from air outlet, it is compared in the prior art that the cold wind in mainstream channel is direct For air outlet outflow scheme, this programme reduces the coefficient of partial resistance of air channel structure, so as to reduce cold wind air-flow Energy loss, it is ensured that send the flow and flow rate of the cold wind into liner, effectively increase the refrigeration effect of refrigerator, and accordingly drop The low generation of noise, so as to improve the overall performance of product, improves its market competitiveness.
In addition, the air channel structure in above-described embodiment provided by the invention can also have following additional technical feature：
In the above-mentioned technical solutions, it is preferable that in the direction and the mainstream channel that cold wind flows in the guide channel Cold wind flowing direction between acute angle in the first preset range, wherein, in the guide channel cold wind flow direction with Acute angle between the direction that cold wind flows in the air outlet and the direction of cold wind flowing and the mainstream in the guide channel Acute angle complementary angle each other between the direction that cold wind flows in channel.
It will be appreciated by persons skilled in the art that the turning angle of air channel structure is smaller, resistance coefficient is relatively smaller, Energy loss is fewer when then cold wind flows through air duct, and the acoustic energy that cold wind impact air duct is converted is also fewer, in contrast, cold The flow and flow rate of wind is bigger, and noise is lower.
In the technical scheme, the side flowed by cold wind in the direction for flowing cold wind in guide channel and mainstream channel Angle between is set as acute angle, in the direction that cold wind in guide channel is flowed and air outlet between the direction of cold wind flowing Angle is set as acute angle, i.e. cold wind air-flow in mainstream channel is sent by air outlet into liner after transferring twice, so as to reduce The resistance coefficient of air channel structure, and then reduce the energy loss of cold wind air-flow, it is ensured that send the stream of the cold wind into liner Amount and flow velocity, and correspondingly reduce the generation of noise.In addition, by by guide channel cold wind flow direction and air outlet in Acute angle between the direction of cold wind flowing is set as the side of cold wind flowing in the direction that cold wind flows in guide channel and mainstream channel The complementary angle of acute angle between, so that cold wind realizes that 90 degree of turnovers are sent by air outlet into liner so that cold wind is flow in liner Position it is remote enough, so as to ensure that uniformity that cold air in liner is distributed, improve the refrigeration effect of refrigerator.
Certainly, in this programme guide channel may be alternatively provided as it is multiple be sequentially connected and with angle bending structures, with into One step reduces the resistance coefficient of guide channel, so as to increase the flow and flow rate of cold wind, and accordingly reduces the generation of noise；Its In, guide channel can be straight panel structure or arc plate structure, not be limited herein, but should all be in the protection model of this programme In enclosing.
In any of the above-described technical solution, it is preferable that first preset range is 30 degree to 60 degree.
In the technical scheme, by the way that the first preset range is set as 30 degree to 60 degree so that cold wind air-flow is through too small angle Degree turnover is sent to air outlet, so as to reduce the resistance coefficient of guide channel, and then reduces the energy loss of cold wind air-flow, really The flow and flow rate of the cold wind sent into liner has been protected, and has correspondingly reduced the generation of noise.Wherein it is preferred to setting is oriented to Acute angle in cold wind flows in channel direction and mainstream channel between the direction of cold wind flowing is 30 degree, in setting guide channel Acute angle in the direction of cold wind flowing and air outlet between the direction of cold wind flowing is 60 degree, specifically, in the item that flow velocity is constant Under part：Assuming that the local resistance loss in 90 degree of turning type air ducts is：
And the local resistance loss in 60 degree of Quadratic Turning air ducts is after first 30 degree：
Wherein, ζ90Resistance coefficient during for the 90 degree of turnings in rectangular section, takes 1.2, ζ30During for the 30 degree of turnings in rectangular section Resistance coefficient takes 0.11, ζ60Resistance coefficient during for the 60 degree of turnings in rectangular section, takes 0.49, υ90For the cold wind in 90 degree of bend pipes Flow velocity, υ30For the flow velocity of cold wind in 30 degree of bend pipes, υ60For the flow velocity of cold wind in 60 degree of bend pipes, υ30-6060 degree after being first 30 degree The flow velocity of cold wind in Quadratic Turning air duct, ρ are cold wind gas density.
Certainly, under the premise of reduction resistance is reliable, cold wind flows in guide channel in this programme direction and major flow In road cold wind flow direction between acute angle and guide channel in cold wind flowing direction and air outlet in cold wind flowing side Acute angle between can also be set as other angles, such as 45 degree, the two both can complementary angle each other, also can be non-mutually remaining, herein just no longer It enumerates, but should be included in the protection domain of this programme.
In any of the above-described technical solution, it is preferable that the air outlet includes the first air outlet and the second air outlet, described First air outlet is arranged on second air outlet on the different level of the wall of inner container.
In the technical scheme, the first air outlet and the second air outlet are arranged on the different level of wall of inner container, with It blows to the different height position of liner, so as to ensure that the uniformity of cooling air distribution in liner, improves the system of refrigerator Cold effect.Specifically, to further improve the uniformity of cooling air distribution in liner, multiple first air outlets and multiple can be set Two air outlets, more specifically, since cold air sinking acts on, the extra lower of quantity that can set air outlet on eminence horizontal plane is horizontal The quantity of air outlet on face.
It certainly, can also be multiple in this programme according to different liner size designs and different refrigerating chamber distribution situations Air outlet is set on the horizontal plane of different height, to meet refrigeration requirement, is just no longer described in detail herein, but should all be in we In the protection domain of case.
In any of the above-described technical solution, it is preferable that the mainstream air duct includes first-class section and second section, and described the First-class section and the second section are arranged at intervals, and the direction that cold wind flows in described first-class section with it is cold in the second section The direction of wind flow is consistent, wherein, the guide channel is between described first-class section and the second section, the guiding Channel is connected with first air outlet, and the guide channel, described first-class section mutually interconnected between the second section It is logical.
In the technical scheme, by setting guide channel between first-class section and second section, so as to reduce Resistance when cold wind in first-class section is sent to the first air outlet, and then ensure that the air output of the first air outlet, so that the The air output of one air outlet and the second air outlet keeps uniform, accordingly improves the refrigeration effect of refrigerator.Wherein, the second air outlet Guide channel can be not provided with as end, to simplify air channel structure, reduces production cost, certainly, is gone out further to reduce by second Air port goes out wind resistance, also can set guide channel between second section and the second air outlet.
In any of the above-described technical solution, it is preferable that described first-class section of diameter is respectively greater than the guide channel Diameter and the diameter more than the second section, the diameter of the guide channel are more than the diameter of the second section.
In the technical scheme, by the way that first-class section of diameter is set to be more than the diameter of second section, to increase second Local resistance of the section to cold wind mainstream, so as to increase air quantity of the cold wind mainstream normal direction point into guide channel, while setting is led It is more than the diameter of second section to the diameter of channel, effectively reduces on-way resistance of the cold wind in guide channel, thus into one Step ensure that the uniformity of the first air outlet, so as to improve the refrigeration effect of refrigerator.
In any of the above-described technical solution, it is preferable that the second section far from described first-class section one end with it is described Second air outlet connects.
In any of the above-described technical solution, it is preferable that the connectivity part of the guide channel and the mainstream channel is provided with Globoidal structure, the part cold wind in the mainstream channel enter along the globoidal structure in the guide channel.
In the technical scheme, globoidal structure is set by the connectivity part in guide channel and mainstream channel so that mainstream Part cold wind in channel is flowed into along globoidal structure is smooth in guide channel, on the one hand reduces the resistance system of air channel structure Number, so as to improve the flow and flow rate for entering cold wind in guide channel, on the other hand avoiding horn structure leads to cold wind point Noise excessive situation is generated during stream, so as to improve the sound quality of product, improves user experience.
In any of the above-described technical solution, it is preferable that further include：Circulating fan is arranged on the air inlet of the mainstream channel At mouthful, for blowing into the mainstream channel.
In the technical scheme, it blows by using circulating fan into mainstream channel, effectively increases the flow of cold wind And wind speed, so as to ensure that the air circulation and circulation rate of cold wind in liner, so as to improve the refrigeration effect of refrigerator.
Second aspect of the present invention embodiment provides a kind of refrigerator, includes described in above-mentioned first aspect any embodiment Air channel structure.
The refrigerator that embodiment provides according to a second aspect of the present invention has what first aspect present invention any embodiment provided Air channel structure, therefore the refrigerator has whole advantageous effects of air channel structure that any of the above-described embodiment provides.
The additional aspect and advantage of the present invention will become practice apparent or by the present invention in following description section Recognize.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment Significantly and it is readily appreciated that, wherein：
Fig. 1 is the structure diagram of the liner of refrigerator and air channel structure in the prior art.
Wherein, the correspondence between the reference numeral in Fig. 1 and component names is：
1' air-supply passages, 2' ducting outlets, 3' liners.
Fig. 2 is the liner of refrigerator described in one embodiment of the invention and the structure diagram of air channel structure；
Fig. 3 is the enlarged structure schematic diagram of A portions shown in Fig. 2.
Wherein, the correspondence between the reference numeral in Fig. 2 and Fig. 3 and component names is：
1 mainstream air duct, 12 first-class sections, 14 second sections, 2 guide channels, 3 globoidal structures, 4 circulating fans, 5 liners, 52 first air outlets, 54 second air outlets.
Specific embodiment
It is to better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also To be implemented using other different from other modes described here, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.
The air channel structure described according to some embodiments of the invention is described referring to Fig. 2 and Fig. 3.
As shown in Figures 2 and 3, the air channel structure that the embodiment of first aspect present invention provides, for refrigerator, including：It send Wind channel and air outlet；Wherein, air-supply passage includes mainstream channel 1 and guide channel 2, one end of guide channel 2 and major flow Road 1 connects, and the other end direction that cold wind flows into mainstream channel 1 of guide channel 2 is obliquely installed；Air outlet is arranged on refrigerator 5 wall of liner on, and connected with the other end of guide channel 2.
The air channel structure that the embodiment of first aspect present invention provides, by by one end of guide channel 2 and mainstream channel 1 The other end direction that cold wind flows into mainstream channel 1 is tilted and is connected with air outlet so that in mainstream channel 1 by connection Cold wind first passes through guide channel 2 and transfers, and is then flowed out from air outlet, will be cold in mainstream channel 1 compared in the prior art For wind directly for the scheme that air outlet flows out, this programme reduces the coefficient of partial resistance of air channel structure, cold so as to reduce The energy loss of general mood stream, it is ensured that send the refrigeration effect for the flow and flow rate of the cold wind in liner 5, effectively increasing refrigerator Fruit, and the generation of noise is correspondingly reduced, so as to improve the overall performance of product, improve its market competitiveness.
As shown in Figures 2 and 3, in one embodiment of the invention, the direction and mainstream that cold wind flows in guide channel 2 In channel 1 cold wind flow direction between acute angle in the first preset range, wherein, in guide channel 2 cold wind flow side In the direction and mainstream channel 1 that acute angle between the direction that cold wind flows into air outlet is flowed with cold wind in guide channel 2 Acute angle complementary angle each other between the direction of cold wind flowing.
It will be appreciated by persons skilled in the art that the turning angle of air channel structure is smaller, resistance coefficient is relatively smaller, Energy loss is fewer when then cold wind flows through air duct, and the acoustic energy that cold wind impact air duct is converted is also fewer, in contrast, cold The flow and flow rate of wind is bigger, and noise is lower.
In the technical scheme, it is flowed by cold wind in the direction for flowing cold wind in guide channel 2 and mainstream channel 1 Angle between direction is set as acute angle, by guide channel 2 cold wind flow direction and air outlet in cold wind flowing direction it Between angle be set as acute angle, i.e. cold wind air-flow in mainstream channel 1 is sent by air outlet into liner 5 after transferring twice, from And the resistance coefficient of air channel structure is reduced, and then reduce the energy loss of cold wind air-flow, it is ensured that send cold into liner 5 The flow and flow rate of wind, and correspondingly reduce the generation of noise.In addition, by by guide channel 2 cold wind flow direction with Acute angle between the direction that cold wind flows in air outlet be set as direction that cold wind in guide channel 2 flows with it is cold in mainstream channel 1 The complementary angle of acute angle between the direction of wind flow, so that cold wind realizes that 90 degree of turnovers are sent by air outlet into liner 5 so that cold wind The position flowing in liner 5 is remote enough, so as to ensure that the uniformity of cold air distribution in liner 5, improves the refrigeration effect of refrigerator Fruit.
Certainly, in this programme guide channel 2 may be alternatively provided as it is multiple be sequentially connected and with angle bending structures, with into One step reduces the resistance coefficient of guide channel 2, so as to increase the flow and flow rate of cold wind, and accordingly reduces the generation of noise；Its In, guide channel 2 can be straight panel structure or arc plate structure, not be limited herein, but should all be in the protection model of this programme In enclosing.
In one embodiment of the invention, it is preferable that the first preset range is 30 degree to 60 degree.
In the technical scheme, by the way that the first preset range is set as 30 degree to 60 degree so that cold wind air-flow is through too small angle Degree turnover is sent to air outlet, so as to reduce the resistance coefficient of guide channel 2, and then reduces the energy loss of cold wind air-flow, It ensures the flow and flow rate sent to the cold wind in liner 5, and correspondingly reduces the generation of noise.Wherein it is preferred to setting is led For 30 degree, setting is oriented to leads to acute angle in cold wind flows into channel 2 direction and mainstream channel 1 between the direction of cold wind flowing Acute angle in cold wind flows in road 2 direction and air outlet between the direction of cold wind flowing is specifically, constant in flow velocity for 60 degree Under conditions of：Assuming that the local resistance loss in 90 degree of turning type air ducts is：
And the local resistance loss in 60 degree of Quadratic Turning air ducts is after first 30 degree：
Wherein, ζ90Resistance coefficient during for the 90 degree of turnings in rectangular section, takes 1.2, ζ30During for the 30 degree of turnings in rectangular section Resistance coefficient takes 0.11, ζ60Resistance coefficient during for the 60 degree of turnings in rectangular section, takes 0.49, υ90For the cold wind in 90 degree of bend pipes Flow velocity, υ30For the flow velocity of cold wind in 30 degree of bend pipes, υ60For the flow velocity of cold wind in 60 degree of bend pipes, υ30-6060 degree after being first 30 degree The flow velocity of cold wind in Quadratic Turning air duct, ρ are cold wind gas density.
Certainly, under the premise of reduction resistance is reliable, cold wind flows in guide channel 2 in this programme direction and major flow In road 1 cold wind flow direction between acute angle and guide channel 2 in cold wind flowing direction and air outlet in cold wind flowing Acute angle between direction can also be set as other angles, such as 45 degree, the two both can complementary angle each other, also can be non-mutually remaining, herein just not It lists, but should be included in the protection domain of this programme one by one again.
As shown in Figures 2 and 3, in one embodiment of the invention, air outlet goes out including the first air outlet 52 and second Air port 54, the first air outlet 52 and the second air outlet 54 are arranged on the different level of 5 wall of liner.
In the technical scheme, the first air outlet 52 and the second air outlet 54 are arranged on to the different level of 5 wall of liner On, it is blown with the different height position to liner 5, so as to ensure that the uniformity of cooling air distribution in liner 5, improves ice The refrigeration effect of case.Specifically, to further improve the uniformity of cooling air distribution in liner 5, multiple first air outlets can be set 52 and multiple second air outlets 54, more specifically, since cold air sinking acts on, the quantity of air outlet on eminence horizontal plane can be set The quantity of air outlet on extra lower horizontal plane.
It certainly, can also be multiple in this programme according to different 5 size designs of liner and different refrigerating chamber distribution situations Air outlet is set on the horizontal plane of different height, to meet refrigeration requirement, is just no longer described in detail herein, but should all be in we In the protection domain of case.
As shown in Figures 2 and 3, in one embodiment of the invention, mainstream air duct includes first-class section 12 and second Section 14, first-class section 12 is arranged at intervals with second section 14, and the direction that cold wind flows in first-class section 12 and second section 14 The direction of interior cold wind flowing is consistent, wherein, guide channel 2 positioned at first-class section 12 and second section 14 between, guide channel 2 and First air outlet 52 connects, and guide channel 2, first-class section 12 between second section 14 be interconnected.
In the technical scheme, by setting guide channel 2 between first-class section 12 and second section 14, so as to reduce Resistance when cold wind in first-class section 12 is sent to the first air outlet 52, and then ensure that the air output of the first air outlet 52, So that the air output of the first air outlet 52 and the second air outlet 54 keeps uniform, the refrigeration effect of refrigerator is accordingly improved. Wherein, the second air outlet 54 can be not provided with guide channel 2 as end, to simplify air channel structure, reduce production cost, certainly, Go out wind resistance for further reduce the second air outlet 54, guiding can be also set between 14 and second air outlet 54 of second section Channel 2.
As shown in figure 3, in one embodiment of the invention, first-class section 12 of diameter D1 is respectively greater than guide channel 2 Diameter D2 and the diameter D3 more than second section 14, the diameter D2 of guide channel 2 be more than the diameter D3 of second section 14.
In the technical scheme, by the way that first-class section 12 of diameter D1 is set to be more than the diameter D3 of second section 14, to increase The local resistance of big second 14 pairs of cold wind mainstreams of section, so as to increase air quantity of the cold wind mainstream normal direction point into guide channel 2, The diameter D2 of guide channel 2 is set to be more than the diameter D3 of second section 14 simultaneously, effectively reduces cold wind in guide channel 2 On-way resistance, so as to further ensure the uniformity of 52 outlet air of the first air outlet, so as to improve the refrigeration effect of refrigerator.
As shown in Fig. 2, in one embodiment of the invention, second section 14 is far from first-class section 12 one end and second Air outlet 54 connects.
As shown in figure 3, in one embodiment of the invention, guide channel 2 and the connectivity part of mainstream channel 1 are provided with arc Face structure 3, the part cold wind in mainstream channel 1 enter along globoidal structure 3 along guide channel 2.
In the technical scheme, globoidal structure 3 is set by the connectivity part in guide channel 2 and mainstream channel 1 so that main Part cold wind in circulation road 1 is flowed into along globoidal structure 3 is smooth in guide channel 2, on the one hand reduces air channel structure Resistance coefficient, so as to improve the flow and flow rate for entering cold wind in guide channel 2, on the other hand avoiding horn structure causes Noise excessive situation is generated when cold wind shunts, so as to improve the sound quality of product, improves user experience.
As shown in Figures 2 and 3, in one embodiment of the invention, it further includes：Circulating fan 4, is arranged on mainstream channel 1 air inlet, for blowing into mainstream channel 1.
In the technical scheme, it blows by using circulating fan 4 into mainstream channel 1, effectively increases the stream of cold wind Amount and wind speed, so as to ensure that the air circulation and circulation rate of cold wind in liner 5, so as to improve the refrigeration effect of refrigerator.
Second aspect of the present invention embodiment provides a kind of refrigerator (not shown), and it is any to include above-mentioned first aspect The air channel structure of embodiment.
The refrigerator that embodiment provides according to a second aspect of the present invention has what first aspect present invention any embodiment provided Air channel structure, therefore the refrigerator has whole advantageous effects of air channel structure that any of the above-described embodiment provides.
In the present invention, term " first ", " second " are only used for the purpose described, and it is not intended that instruction or hint phase To importance；The terms such as term " installation ", " connected ", " connection ", " fixation " should all be interpreted broadly, for example, " connection " can be with It is to be fixedly connected or be detachably connected or be integrally connected；" connected " can be directly connected, can also be in Between medium be indirectly connected.For the ordinary skill in the art, above-mentioned term can be understood at this as the case may be Concrete meaning in invention.
In the description of this specification, the description of term " one embodiment ", " specific embodiment " etc. means to combine the reality The particular features, structures, materials, or characteristics for applying example or example description are contained at least one embodiment of the present invention or example. In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, description Particular features, structures, materials, or characteristics can in an appropriate manner combine in any one or more embodiments or example.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (8)

1. a kind of air channel structure, for refrigerator, which is characterized in that including：
Air-supply passage, the air-supply passage include mainstream channel and guide channel, one end of the guide channel and the mainstream Channel connects, and the other end direction that cold wind flows into the mainstream channel of the guide channel is obliquely installed；
Air outlet is arranged on the wall of inner container of the refrigerator, and is connected with the other end of the guide channel；
The air outlet includes the first air outlet；
The mainstream channel includes first-class section and second section, and described first-class section is arranged at intervals with the second section, and The direction that cold wind flows in described first-class section is consistent with the direction that cold wind in the second section flows, wherein, the guiding Channel is between described first-class section and the second section, and the guide channel is connected with first air outlet, and institute State guide channel, it is described first-class section between the second section be interconnected；
The diameter and the diameter more than the second section that described first-class section of diameter is respectively greater than the guide channel, it is described The diameter of guide channel is more than the diameter of the second section.
2. air channel structure according to claim 1, which is characterized in that
Acute angle in cold wind flows in the guide channel direction and the mainstream channel between the direction of cold wind flowing is the In one preset range, wherein, in direction and the air outlet that cold wind flows in the guide channel direction of cold wind flowing it Between acute angle and the guide channel in cold wind flowing direction and the mainstream channel in cold wind flowing direction between it is sharp Angle complementary angle each other.
3. air channel structure according to claim 2, which is characterized in that
First preset range is 30 degree to 60 degree.
4. air channel structure according to claim 1, which is characterized in that the air outlet further includes the second air outlet, described First air outlet is arranged on second air outlet on the different level of the wall of inner container.
5. air channel structure according to claim 4, which is characterized in that
The second section is connected far from described first-class section one end with second air outlet.
6. air channel structure according to any one of claim 1 to 5, which is characterized in that the guide channel and the master The connectivity part of circulation road is provided with globoidal structure, the part cold wind in the mainstream channel along the globoidal structure enter described in lead Into channel.
7. air channel structure according to any one of claim 1 to 5, which is characterized in that further include：
Circulating fan is arranged on the air inlet of the mainstream channel, for blowing into the mainstream channel.
8. a kind of refrigerator, which is characterized in that including just like the air channel structure described in any one of claim 1 to 7.
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