CN105546918A - Air flue structure and refrigerator - Google Patents

Abstract

The invention provides an air flue structure and a refrigerator. The air flue structure comprises an air supply passage and an air outlet, wherein the air supply passage comprises a main flow channel and a guide channel, one end of the guide channel is communicated with the main flow channel, the other end of the guide channel is inclined in the flowing direction of cold air in the main flow channel, and the air outlet is formed in the wall of an inner container of the refrigerator and communicated with the other end of the guide channel. According to the technical scheme, one end of the guide channel is communicated with the main flow channel, and the other end of the guide channel is inclined in the flowing direction of the cold air in the main flow channel so that the cold air in the main flow channel can be turned through the guide channel and then flow out of the air outlet; in this way, the local resistance coefficient of the air flue structure is reduced, energy loss of cold air flow is reduced, the flow rate and flow velocity of the cold air supplied into the inner container are ensured, the refrigerating effect of the refrigerator is effectively improved, generated noise is lowered accordingly, overall performance of the product is improved, and the market competitiveness of the product is promoted.

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 series products on market, as shown in Figure 1, its ducting outlet 2' is similar 90 degree of right-angled bend formulas design substantially, making the air-flow in air-supply passage 1' once turn over an angle of 90 degrees delivers in the inner bag 3' of refrigerator by ducting outlet 2', but, because the resistance of right-angled bend to air-flow is larger, thus reduce the flow and flow velocity of delivering to air-flow in inner bag 3', cause the cold storage effect of refrigerator poor, also increase the generation of noise simultaneously, reduce the overall performance of product, be unfavorable for its marketing.

Therefore, how to propose a kind of reliable and that noise is low air channel structure of blowing, become current problem demanding prompt solution.

Summary of the invention

In order to solve the problems of the technologies described above one of at least, one object of the present invention is to provide a kind of reliable and that noise is low air channel structure of blowing.

Another object of the present invention is to provide a kind of refrigerator with above-mentioned air channel structure.

For achieving the above object, the embodiment of first aspect present invention provides a kind of air channel structure, for refrigerator, comprise: air-supply passage, described air-supply passage comprises mainstream channel and guide channel, one end of described guide channel is communicated with described mainstream channel, and the direction that the other end of described guide channel flows to cold wind in described mainstream channel is obliquely installed; Air outlet, is arranged on the wall of inner container of described refrigerator, and is communicated with the other end of described guide channel.

The air channel structure that the embodiment of first aspect present invention provides, by one end of guide channel is communicated with mainstream channel, the direction of the other end to cold wind flowing in mainstream channel is tilted and be communicated with air outlet, cold wind in mainstream channel is first transferred by guide channel, then flowing out from air outlet, in prior art, the cold wind in mainstream channel is directly flowed out scheme from air outlet, this programme reduces the coefficient of partial resistance of air channel structure, thus decrease the energy loss of cold wind air-flow, ensure that flow and the flow velocity of the cold wind delivered in inner bag, effectively improve the refrigeration of refrigerator, and correspondingly reduce the generation of noise, thus improve the overall performance of product, improve 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 technique scheme, preferably, acute angle in the direction of cold wind flowing in described guide channel and described mainstream channel between the cold wind direction of flowing is in the first preset range, wherein, the acute angle complementary angle each other between the direction that in the direction that in the acute angle in the direction of cold wind flowing in described guide channel and described air outlet between the cold wind direction of flowing and described guide channel, cold wind flows and described mainstream channel, cold wind flows.

It will be appreciated by persons skilled in the art that the turning angle of air channel structure is less, its resistance coefficient is relatively less, when then cold wind flows through air channel, energy loss is fewer, and cold wind to impact the acoustic energy that air channel transforms also fewer, comparatively speaking, flow and the flow velocity of cold wind are larger, and noise is lower.

In this technical scheme, by the angle in the direction of cold wind flowing in guide channel and mainstream channel between the cold wind direction of flowing is set to acute angle, angle between the direction of flow cold wind in the direction of cold wind flowing in guide channel and air outlet is set to acute angle, namely the cold wind air-flow in mainstream channel is delivered in inner bag by air outlet after twice turnover, thus reduce the resistance coefficient of air channel structure, and then decrease the energy loss of cold wind air-flow, ensure that flow and the flow velocity of the cold wind delivered in inner bag, and correspondingly reduce the generation of noise.In addition, by the acute angle in the direction of cold wind flowing in guide channel and air outlet between the cold wind direction of flowing being set to the complementary angle of the acute angle between direction that in direction and mainstream channel that in guide channel, cold wind flows, cold wind flows, realizing 90 degree of turnovers to make cold wind delivers in inner bag by air outlet, the position that cold wind is flow in inner bag is enough far away, thus ensure that the uniformity of cold air distribution in inner bag, improve the refrigeration of refrigerator.

Certainly, in this programme, guide channel also can be set to multiple connection successively and have the bending structure of angle, to reduce the resistance coefficient of guide channel further, thus increases flow and the flow velocity of cold wind, and the generation of corresponding reduction noise; Wherein, guide channel can be straight plate structure, also can be arc plate structure, does not limit herein, but all should in the protection domain of this programme.

In above-mentioned arbitrary technical scheme, preferably, described first preset range is 30 degree to 60 degree.

In this technical scheme, by the first preset range is set to 30 degree to 60 degree, cold wind air-flow is made to deliver to air outlet through low-angle turnover, thus reduce the resistance coefficient of guide channel, and then decrease the energy loss of cold wind air-flow, ensure that flow and the flow velocity of the cold wind delivered in inner bag, and correspondingly reduce the generation of noise.Wherein, preferably, the acute angle arranged between direction that in the direction of the flowing of cold wind in guide channel and mainstream channel, cold wind flows is 30 degree, the acute angle arranged between direction that in the direction of the flowing of cold wind in guide channel and air outlet, cold wind flows is 60 degree, particularly, under the constant condition of flow velocity: suppose that the local resistance loss in 90 degree of turning type air channels is:

${\mathrm{\ΔP}}_{90}={\mathrm{\ζ}}_{90}\×0.5\×\mathrm{\ρ}\×{\mathrm{\υ}}_{90}^2;$

And the local resistance loss in 60 degree of Quadratic Turning air channels is after first 30 degree:

${\mathrm{\ΔP}}_{30-60}={\mathrm{\ζ}}_{30}\×0.5\×\mathrm{\ρ}\×{\mathrm{\υ}}_{30}^2+{\mathrm{\ζ}}_{60}\×0.5\×\mathrm{\ρ}\×{\mathrm{\υ}}_{60}^2;$

Wherein, ζ ₉₀for resistance coefficient time turning in 90 degree, square-section, get 1.2, ζ ₃₀for resistance coefficient time turning in 30 degree, square-section, get 0.11, ζ ₆₀for resistance coefficient time turning in 60 degree, square-section, get 0.49, υ ₉₀be the flow velocity of the cold wind in 90 degree of bend pipes, υ ₃₀be the flow velocity of cold wind in 30 degree of bend pipes, υ ₆₀be the flow velocity of cold wind in 60 degree of bend pipes, υ _30-60for the flow velocity of cold wind in front 30 degree of rear 60 degree of Quadratic Turning air channels, ρ is cold wind gas density.

Suppose that air current flow loses mainly local losses, ignore linear loss, after first 30 degree, the cross section in 60 degree of Quadratic Turning air channels is constant along journey, namely has υ ₃₀=υ ₆₀, when considering that pitot loss is identical, i.e. Δ P ₉₀=Δ P _30-60, make υ _30-60=υ ₃₀=υ ₆₀, two formulas above that arrange obtain: $\sqrt{\frac{{\mathrm{\υ}}_{30-60}}{{\mathrm{\υ}}_{90}}}=\sqrt{\frac{{\mathrm{\ζ}}_{90}}{{\mathrm{\ζ}}_{30}+{\mathrm{\ζ}}_{60}}}=\sqrt{\frac{1.2}{0.11+0.49}}=1.414,$ Thus the design of first 30 degree air channel structures of 60 degree of Quadratic Turnings afterwards in this programme, the flow of cold wind air-flow is made to reach disposable 90 degree of turnovers 1.414 times of air channels, thus effectively increase the air quantity of the cold wind delivered in inner bag, and then improve the cold storage effect of refrigerator.

Certainly; under the reliable prerequisite of reduction resistance; acute angle between the direction that in the direction that in acute angle in the direction of cold wind flowing in guide channel in this programme and mainstream channel between the cold wind direction of flowing and guide channel, cold wind flows and air outlet, cold wind flows also can be set to other angles; such as 45 degree; both both can complementary angle each other; also can non-mutually more than, will not enumerate herein, but all should be included in the protection domain of this programme.

In above-mentioned arbitrary technical scheme, preferably, described air outlet comprises the first air outlet and the second air outlet, and described first air outlet and described second air outlet are arranged on the different level of described wall of inner container.

In this technical scheme, the first air outlet and the second air outlet are arranged on the different level of wall of inner container, to blow to the differing heights position of inner bag, thus ensure that the uniformity of cooling air distribution in inner bag, improve the refrigeration of refrigerator.Particularly, for improving the uniformity of cooling air distribution in inner bag further, multiple first air outlet and multiple second air outlet can be set, more specifically, due to cold air sinking effect, the quantity of air outlet on the unnecessary lower horizontal plane of quantity that air outlet on eminence horizontal plane can be set.

Certainly; according to different inner bag size design and different refrigerating chamber distribution situations, in this programme, also can set out air port on the horizontal plane of multiple differing heights, with satisfied refrigeration requirement; just no longer describe in detail herein, but all should in the protection domain of this programme.

In above-mentioned arbitrary technical scheme, preferably, described main flow air channel comprises first-class section and second section, described first-class section is arranged with described second spacer segment, and the direction of cold wind flowing is consistent with the direction that cold wind in described second section flows in described first-class section, wherein, described guide channel is between described first-class section and described second section, described guide channel is communicated with described first air outlet, and described guide channel, is interconnected between described first-class section and described second section.

In this technical scheme, by arranging guide channel between first-class section and second section, thus the resistance of the cold wind reduced in first-class section when delivering to the first air outlet, and then ensure that the air output of the first air outlet, thus make the air output of the first air outlet and the second air outlet keep evenly, the corresponding refrigeration that improve refrigerator.Wherein, the second air outlet can not arrange guide channel as end, to simplify air channel structure, reduces production cost, certainly, goes out wind resistance, also can arrange guide channel between second section and the second air outlet for what reduce the second air outlet further.

In above-mentioned arbitrary technical scheme, preferably, the diameter of described first-class section is greater than the diameter of described guide channel respectively and is greater than the diameter of described second section, and the diameter of described guide channel is greater than the diameter of described second section.

In this technical scheme, the diameter of second section is greater than by the diameter arranging first-class section, to increase the local resistance of second section to cold wind main flow, thus add cold wind main flow normal direction and divide to the air quantity in guide channel, the diameter simultaneously arranging guide channel is greater than the diameter of second section, effectively reduce the on-way resistance of cold wind in guide channel, thus further ensure the uniformity of the first air outlet, thus improve the refrigeration of refrigerator.

In above-mentioned arbitrary technical scheme, preferably, described second section is communicated with described second air outlet away from one end of described first-class section.

In above-mentioned arbitrary technical scheme, preferably, the connectivity part of described guide channel and described mainstream channel is provided with globoidal structure, and the part cold wind in described mainstream channel enters in described guide channel along described globoidal structure.

In this technical scheme, by arranging globoidal structure in the connectivity part of guide channel and mainstream channel, make the part cold wind in mainstream channel along globoidal structure level and smooth flow in guide channel, reduce the resistance coefficient of air channel structure on the one hand, thus improve the flow and flow velocity that enter cold wind in guide channel, avoid on the other hand when horn structure causes cold wind to be shunted and produce the excessive situation of noise, thus improve the sound quality of product, improve Consumer's Experience.

In above-mentioned arbitrary technical scheme, preferably, also comprise: circulating fan, be arranged on the air inlet of described mainstream channel, for blowing in described mainstream channel.

In this technical scheme, by utilizing circulating fan to blow in mainstream channel, effectively improve flow and the wind speed of cold wind, thus ensure that air circulation and the circulation rate of cold wind in inner bag, thus improve the refrigeration of refrigerator.

Second aspect present invention embodiment provides a kind of refrigerator, includes the air channel structure described in above-mentioned first aspect any embodiment.

The refrigerator that theres is provided of embodiment according to a second aspect of the present invention, have the air channel structure that first aspect present invention any embodiment provides, therefore this refrigerator has whole beneficial effects of the air channel structure that above-mentioned any embodiment provides.

Additional aspect of the present invention and advantage become obvious by description part below, or are recognized by practice of the present invention.

Accompanying drawing explanation

Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:

Fig. 1 is the inner bag of refrigerator and the structural representation of air channel structure in prior art.

Wherein, the Reference numeral in Fig. 1 and the corresponding relation between component names are:

1' air-supply passage, 2' ducting outlet, 3' inner bag.

Fig. 2 is the inner bag of refrigerator described in one embodiment of the invention and the structural representation of air channel structure;

Fig. 3 is the structure for amplifying schematic diagram in the portion of A shown in Fig. 2.

Wherein, the Reference numeral in Fig. 2 and Fig. 3 and the corresponding relation between component names are:

1 main flow air channel, 12 first-class sections, 14 second sections, 2 guide channels, 3 globoidal structures, 4 circulating fans, 5 inner bags, 52 first air outlets, 54 second air outlets.

Detailed description of the invention

In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.

Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.

Referring to Fig. 2 and Fig. 3, air channel structure described is according to some embodiments of the invention described.

As shown in Figures 2 and 3, the air channel structure that the embodiment of first aspect present invention provides, for refrigerator, comprising: air-supply passage and air outlet; Wherein, air-supply passage comprises mainstream channel 1 and guide channel 2, and one end of guide channel 2 is communicated with mainstream channel 1, and the direction that the other end of guide channel 2 flows to cold wind in mainstream channel 1 is obliquely installed; Air outlet is arranged on inner bag 5 wall of refrigerator, and is communicated with the other end of guide channel 2.

The air channel structure that the embodiment of first aspect present invention provides, by one end of guide channel 2 is communicated with mainstream channel 1, the direction of the other end to cold wind flowing in mainstream channel 1 is tilted and be communicated with air outlet, cold wind in mainstream channel 1 is first transferred by guide channel 2, then flowing out from air outlet, in prior art by the cold wind in mainstream channel 1 directly from air outlet flow out scheme, this programme reduces the coefficient of partial resistance of air channel structure, thus decrease the energy loss of cold wind air-flow, ensure that flow and the flow velocity of the cold wind delivered in inner bag 5, effectively improve the refrigeration of refrigerator, and correspondingly reduce the generation of noise, thus improve the overall performance of product, improve its market competitiveness.

As shown in Figures 2 and 3, in one embodiment of the invention, acute angle in the direction of cold wind flowing in guide channel 2 and mainstream channel 1 between the cold wind direction of flowing is in the first preset range, wherein, the acute angle complementary angle each other between the direction that in the direction that in the acute angle in the direction of cold wind flowing in guide channel 2 and air outlet between the cold wind direction of flowing and guide channel 2, cold wind flows and mainstream channel 1, cold wind flows.

It will be appreciated by persons skilled in the art that the turning angle of air channel structure is less, its resistance coefficient is relatively less, when then cold wind flows through air channel, energy loss is fewer, and cold wind to impact the acoustic energy that air channel transforms also fewer, comparatively speaking, flow and the flow velocity of cold wind are larger, and noise is lower.

In this technical scheme, by the angle in the direction of cold wind flowing in guide channel 2 and mainstream channel 1 between the cold wind direction of flowing is set to acute angle, angle between the direction of flow cold wind in the direction of cold wind flowing in guide channel 2 and air outlet is set to acute angle, namely the cold wind air-flow in mainstream channel 1 is delivered in inner bag 5 by air outlet after twice turnover, thus reduce the resistance coefficient of air channel structure, and then decrease the energy loss of cold wind air-flow, ensure that flow and the flow velocity of the cold wind delivered in inner bag 5, and correspondingly reduce the generation of noise.In addition, by the acute angle in the direction of cold wind flowing in guide channel 2 and air outlet between the cold wind direction of flowing being set to the complementary angle of the acute angle between direction that in direction and mainstream channel 1 that in guide channel 2, cold wind flows, cold wind flows, realizing 90 degree of turnovers to make cold wind delivers in inner bag 5 by air outlet, the position that cold wind is flow in inner bag 5 is enough far away, thus ensure that the uniformity of cold air distribution in inner bag 5, improve the refrigeration of refrigerator.

Certainly, in this programme, guide channel 2 also can be set to multiple connection successively and have the bending structure of angle, to reduce the resistance coefficient of guide channel 2 further, thus increases flow and the flow velocity of cold wind, and the generation of corresponding reduction noise; Wherein, guide channel 2 can be straight plate structure, also can be arc plate structure, does not limit herein, but all should in the protection domain of this programme.

In one embodiment of the invention, preferably, the first preset range is 30 degree to 60 degree.

In this technical scheme, by the first preset range is set to 30 degree to 60 degree, cold wind air-flow is made to deliver to air outlet through low-angle turnover, thus reduce the resistance coefficient of guide channel 2, and then decrease the energy loss of cold wind air-flow, ensure that flow and the flow velocity of the cold wind delivered in inner bag 5, and correspondingly reduce the generation of noise.Wherein, preferably, the acute angle arranged between direction that in the direction of the flowing of cold wind in guide channel 2 and mainstream channel 1, cold wind flows is 30 degree, the acute angle arranged between direction that in the direction of the flowing of cold wind in guide channel 2 and air outlet, cold wind flows is 60 degree, particularly, under the constant condition of flow velocity: suppose that the local resistance loss in 90 degree of turning type air channels is:

${\mathrm{\ΔP}}_{90}={\mathrm{\ζ}}_{90}\×0.5\×\mathrm{\ρ}\×{\mathrm{\υ}}_{90}^2;$

And the local resistance loss in 60 degree of Quadratic Turning air channels is after first 30 degree:

${\mathrm{\ΔP}}_{30-60}={\mathrm{\ζ}}_{30}\×0.5\×\mathrm{\ρ}\×{\mathrm{\υ}}_{30}^2+{\mathrm{\ζ}}_{60}\×0.5\×\mathrm{\ρ}\×{\mathrm{\υ}}_{60}^2;$

Wherein, ζ ₉₀for resistance coefficient time turning in 90 degree, square-section, get 1.2, ζ ₃₀for resistance coefficient time turning in 30 degree, square-section, get 0.11, ζ ₆₀for resistance coefficient time turning in 60 degree, square-section, get 0.49, υ ₉₀be the flow velocity of the cold wind in 90 degree of bend pipes, υ ₃₀be the flow velocity of cold wind in 30 degree of bend pipes, υ ₆₀be the flow velocity of cold wind in 60 degree of bend pipes, υ _30-60for the flow velocity of cold wind in front 30 degree of rear 60 degree of Quadratic Turning air channels, ρ is cold wind gas density.

Suppose that air current flow loses mainly local losses, ignore linear loss, after first 30 degree, the cross section in 60 degree of Quadratic Turning air channels is constant along journey, namely has υ ₃₀=υ ₆₀, when considering that pitot loss is identical, i.e. Δ P ₉₀=Δ P _30-60, make υ _30-60=υ ₃₀=υ ₆₀, two formulas above that arrange obtain: $\sqrt{\frac{{\mathrm{\υ}}_{30-60}}{{\mathrm{\υ}}_{90}}}=\sqrt{\frac{{\mathrm{\ζ}}_{90}}{{\mathrm{\ζ}}_{30}+{\mathrm{\ζ}}_{60}}}=\sqrt{\frac{1.2}{0.11+0.49}}=1.414,$ Thus the design of first 30 degree air channel structures of 60 degree of Quadratic Turnings afterwards in this programme, the flow of cold wind air-flow is made to reach 1.414 times of one time 90 property degree turnover air channel, thus effectively increase the air quantity of the cold wind delivered in inner bag 5, and then improve the cold storage effect of refrigerator.

Certainly; under the reliable prerequisite of reduction resistance; acute angle between the direction that in the direction that in acute angle in the direction of cold wind flowing in guide channel 2 in this programme and mainstream channel 1 between the cold wind direction of flowing and guide channel 2, cold wind flows and air outlet, cold wind flows also can be set to other angles; such as 45 degree; both both can complementary angle each other; also can non-mutually more than, will not enumerate herein, but all should be included in the protection domain of this programme.

As shown in Figures 2 and 3, in one embodiment of the invention, air outlet comprises the first air outlet 52 and the second air outlet 54, first air outlet 52 and the second air outlet 54 and is arranged on the different level of inner bag 5 wall.

In this technical scheme, the first air outlet 52 and the second air outlet 54 are arranged on the different level of inner bag 5 wall, to blow to the differing heights position of inner bag 5, thus ensure that the uniformity of cooling air distribution in inner bag 5, improve the refrigeration of refrigerator.Particularly, for improving the uniformity of cooling air distribution in inner bag 5 further, multiple first air outlet 52 and multiple second air outlet 54 can be set, more specifically, due to cold air sinking effect, the quantity of air outlet on the unnecessary lower horizontal plane of quantity that air outlet on eminence horizontal plane can be set.

Certainly; according to different inner bag 5 size design and different refrigerating chamber distribution situations, in this programme, also can set out air port on the horizontal plane of multiple differing heights, with satisfied refrigeration requirement; just no longer describe in detail herein, but all should in the protection domain of this programme.

As shown in Figures 2 and 3, in one embodiment of the invention, main flow air channel comprises first-class section 12 and second section 14, first-class section 12 and second section 14 interval are arranged, and the direction of cold wind flowing is consistent with the direction that cold wind in second section 14 flows in first-class section 12, wherein, guide channel 2 is between first-class section 12 and second section 14, guide channel 2 is communicated with the first air outlet 52, and guide channel 2, is interconnected between first-class section 12 and second section 14.

In this technical scheme, by arranging guide channel 2 between first-class section 12 and second section 14, thus the resistance of the cold wind reduced in first-class section 12 when delivering to the first air outlet 52, and then ensure that the air output of the first air outlet 52, thus make the air output of the first air outlet 52 and the second air outlet 54 keep evenly, the corresponding refrigeration that improve refrigerator.Wherein, the second air outlet 54 can not arrange guide channel 2 as end, to simplify air channel structure, reduce production cost, certainly, go out wind resistance for what reduce the second air outlet 54 further, also guide channel 2 can be set between second section 14 and the second air outlet 54.

As shown in Figure 3, in one embodiment of the invention, the diameter D1 of first-class section 12 is greater than the diameter D2 of guide channel 2 respectively and is greater than the diameter D3 of second section 14, and the diameter D2 of guide channel 2 is greater than the diameter D3 of second section 14.

In this technical scheme, the diameter D3 of second section 14 is greater than by the diameter D1 arranging first-class section 12, to increase the local resistance of second section 14 pairs of cold wind main flows, thus add cold wind main flow normal direction and divide to the air quantity in guide channel 2, the diameter D2 simultaneously arranging guide channel 2 is greater than the diameter D3 of second section 14, effectively reduce the on-way resistance of cold wind in guide channel 2, thus further ensure the uniformity of the first air outlet 52 air-out, thus improve the refrigeration of refrigerator.

As shown in Figure 2, in one embodiment of the invention, second section 14 is communicated with the second air outlet 54 away from one end of first-class section 12.

As shown in Figure 3, in one embodiment of the invention, guide channel 2 is provided with globoidal structure 3 with the connectivity part of mainstream channel 1, and the part cold wind in mainstream channel 1 enters in guide channel 2 along globoidal structure 3.

In this technical scheme, by arranging globoidal structure 3 at guide channel 2 and the connectivity part of mainstream channel 1, make the part cold wind in mainstream channel 1 along globoidal structure 3 level and smooth flow in guide channel 2, reduce the resistance coefficient of air channel structure on the one hand, thus improve the flow and flow velocity that enter cold wind in guide channel 2, avoid on the other hand when horn structure causes cold wind to be shunted and produce the excessive situation of noise, thus improve the sound quality of product, improve Consumer's Experience.

As shown in Figures 2 and 3, in one embodiment of the invention, also comprise: circulating fan 4, be arranged on the air inlet of mainstream channel 1, for blowing in mainstream channel 1.

In this technical scheme, by utilizing circulating fan 4 to blow in mainstream channel 1, effectively improve flow and the wind speed of cold wind, thus ensure that air circulation and the circulation rate of cold wind in inner bag 5, thus improve the refrigeration of refrigerator.

Second aspect present invention embodiment provides a kind of refrigerator (not shown), includes the air channel structure of above-mentioned first aspect any embodiment.

The refrigerator that theres is provided of embodiment according to a second aspect of the present invention, have the air channel structure that first aspect present invention any embodiment provides, therefore this refrigerator has whole beneficial effects of the air channel structure that above-mentioned any embodiment provides.

In the present invention, term " first ", " second " object only for describing, and instruction or hint relative importance can not be interpreted as; The term such as term " installation ", " being connected ", " connection ", " fixing " all should be interpreted broadly, and such as, " connection " can be fixedly connected with, and also can be removably connect, or connects integratedly; " being connected " can be directly be connected, and also indirectly can be connected by intermediary.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.

In the description of this description, specific features, structure, material or feature that the description of term " embodiment ", " specific embodiment " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. an air channel structure, for refrigerator, is characterized in that, comprising:

Air-supply passage, described air-supply passage comprises mainstream channel and guide channel, and one end of described guide channel is communicated with described mainstream channel, and the direction that the other end of described guide channel flows to cold wind in described mainstream channel is obliquely installed;

Air outlet, is arranged on the wall of inner container of described refrigerator, and is communicated with the other end of described guide channel.

2. air channel structure according to claim 1, is characterized in that,

Acute angle in the direction of cold wind flowing in described guide channel and described mainstream channel between the cold wind direction of flowing is in the first preset range, wherein, the acute angle complementary angle each other between the direction that in the direction that in the acute angle in the direction of cold wind flowing in described guide channel and described air outlet between the cold wind direction of flowing and described guide channel, cold wind flows and described mainstream channel, cold wind flows.

3. air channel structure according to claim 2, is characterized in that,

Described first preset range is 30 degree to 60 degree.

4. air channel structure according to claim 1, is characterized in that, described air outlet comprises the first air outlet and the second air outlet, and described first air outlet and described second air outlet are arranged on the different level of described wall of inner container.

5. air channel structure according to claim 4, is characterized in that,

Described main flow air channel comprises first-class section and second section, described first-class section is arranged with described second spacer segment, and the direction of cold wind flowing is consistent with the direction that cold wind in described second section flows in described first-class section, wherein, described guide channel is between described first-class section and described second section, described guide channel is communicated with described first air outlet, and described guide channel, is interconnected between described first-class section and described second section.

6. air channel structure according to claim 5, is characterized in that,

The diameter of described first-class section is greater than the diameter of described guide channel respectively and is greater than the diameter of described second section, and the diameter of described guide channel is greater than the diameter of described second section.

7. air channel structure according to claim 5, is characterized in that,

Described second section is communicated with described second air outlet away from one end of described first-class section.

8. air channel structure according to any one of claim 1 to 7, is characterized in that, the connectivity part of described guide channel and described mainstream channel is provided with globoidal structure, and the part cold wind in described mainstream channel enters in described guide channel along described globoidal structure.

9. air channel structure according to any one of claim 1 to 7, is characterized in that, also comprises:

Circulating fan, is arranged on the air inlet of described mainstream channel, for blowing in described mainstream channel.

10. a refrigerator, is characterized in that, includes air channel structure as claimed in any one of claims 1-9 wherein.