CN107345732B

CN107345732B - Refrigerator with a door

Info

Publication number: CN107345732B
Application number: CN201610299012.8A
Authority: CN
Inventors: 殷浩; 杨晨; 孟庆飞; 徐礼嘉
Original assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Hausgeraete GmbH
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Hausgeraete GmbH
Priority date: 2016-05-06
Filing date: 2016-05-06
Publication date: 2021-10-08
Anticipated expiration: 2036-05-06
Also published as: CN107345732A

Abstract

The invention provides a refrigerator, which comprises a compartment and an air duct system, wherein the air duct system comprises a first air duct which is horizontally arranged, the first air duct is provided with an air outlet communicated with the compartment, and an air guide device is arranged at the upstream position of the air outlet of the first air duct in the flowing direction of air, so that the air output quantity or the air output speed of the air entering the compartment through each partial area of the air outlet is basically the same. The air guiding device guides the cold air flowing in the first air duct to uniformly flow to each partial area of the air outlet, and the air outlet quantity or the air outlet speed of the cold air flowing out of each partial area of the air outlet and entering the compartment are basically consistent, so that the uniform distribution of the temperature in the whole compartment can be expected.

Description

Refrigerator with a door

Technical Field

The invention relates to the technical field of refrigerators, in particular to an air duct structure of a refrigerator compartment.

Background

The chinese patent application publication No. CN201757555U discloses an air duct structure of a refrigerator, in which a fan is disposed at the intersection of a horizontal air duct cover plate and a vertical air duct cover plate. Due to the eccentricity of the axial flow fan, when the fan rotates, the blowing wind flows out in a manner of deviating to the inclined plane of the fan blade (generally, deviating to the right of the wind traveling direction). The air blown by the fan and obliquely coming out can rebound a part of air quantity when touching the wall surface of the horizontal air duct cover plate, but the air quantity of a small part of the air outlet of the horizontal cover plate is still large, the air quantity of a large part of the air outlet is extremely small, even no air quantity exists, namely the air quantity of the whole area of the air outlet is uneven, and the uniformity of indoor temperature distribution is seriously influenced.

Disclosure of Invention

The invention aims to improve the uniformity of the indoor temperature distribution of the refrigerator compartment.

In order to solve the above problems, the present invention provides a refrigerator, including a compartment and an air duct system, where the air duct system includes a first air duct horizontally disposed, and the first air duct has an air outlet communicated with the compartment, and in a flow direction of air, the first air duct is provided with an air guide device at an upstream position of the air outlet, so that an air output amount or an air output speed of air entering the compartment through each partial region of the air outlet is substantially the same.

The cold air flowing in the first air duct flows to each partial air outlet area of the air outlet uniformly through the guiding of the air guiding device, and the air outlet quantity or the air outlet speed of the cold air which comes out of each partial air outlet area of the air outlet and enters the compartment is basically consistent, so that the uniform distribution of the temperature in the whole compartment can be expected.

As a further development of the invention, the outlet opening has approximately the entire transverse width of the compartment.

So guaranteed that the air outlet has sufficient width in the room between to make cold wind can follow each partial air-out region of air outlet and flow out uniformly and get into each direction in the room, guarantee the evenly distributed of indoor temperature between.

As a further improvement of the present invention, the air outlet is provided with a plurality of partitions to partition the air outlet into a plurality of sub-air outlets, and the plurality of sub-air outlets are uniformly distributed over the entire lateral area of the air outlet, and under the guidance of the air guiding device, the air output or the air output speed of the air entering the compartment through each sub-air outlet is substantially the same.

As a further improvement of the present invention, the air guide device includes a first air guide member and a second air guide member, the first air guide member guides the air partially to a middle area of an entire lateral area of the air outlet; the second wind guide guides the wind partially to a middle area and a leftmost edge area of the entire lateral area of the wind outlet.

The air guide device is implemented into two independent air guide pieces, so that the air in the first air duct can be respectively and partially guided to two different air outlet areas of the whole transverse air outlet area of the air outlet, the situation that the air outlet amount of most air outlet areas of the air outlet is extremely small or even no air outlet amount is changed, the air outlet amount or the air outlet speed of each air outlet area of the whole transverse air outlet area of the air outlet is basically consistent, and the uniformity of the indoor temperature distribution is further realized.

It will be apparent to those skilled in the art that the air guiding device may have other design to achieve the same function, for example, the air guiding device may be a single air guiding element or include more than two air guiding elements.

As a further improvement of the present invention, the air duct system includes a horizontally disposed first cover plate, and the first air duct is defined by the first cover plate and a top wall of the compartment; the first air guide and the second air guide are provided as a first rib and a second rib formed on the first cover plate.

The first and second air guiding members can realize the air guiding function as long as the first and second air guiding members are arranged in the first air duct, and specifically, the two air guiding members can be arranged on the top wall of the compartment and also can be arranged on the first cover plate.

As a further improvement of the present invention, the vertical height of the first rib on the first cover plate gradually increases from left to right; the vertical height of the second convex rib on the first cover plate is basically consistent from left to right.

The first rib has a shape structure to guide the wind in the first wind tunnel partially to a middle region of the entire lateral wind-out region of the wind outlet, and the second rib has a shape structure to guide the wind in the first wind tunnel partially to a middle region and a leftmost edge region of the entire lateral wind-out region of the wind outlet.

As a further improvement of the present invention, the first bead and the second bead are disposed in parallel with each other on the same lateral region of the first lid plate.

First protruding muscle and second protruding muscle so set up on the same horizontal region of first apron, can cooperate better in order to realize the function of wind-guiding in first wind channel each other.

As a further improvement of the present invention, the maximum vertical height of each of the first rib and the second rib on the first cover plate is smaller than the vertical height between the first cover plate and the top wall of the compartment.

So first protruding muscle and second protruding muscle can realize the function of wind-guiding but do not block off the wind completely and flow to the partial air-out region of air outlet with original flow direction in first wind channel, and partial wind is by first protruding muscle and the guide of second protruding muscle and skew original flow direction promptly, and partial wind is then surpassed first protruding muscle and second protruding muscle and continues to flow with original flow direction.

As a further improvement of the present invention, the first rib has a first upward sloping windward surface or a first smooth curved windward surface facing in the upstream direction, with the flowing direction of the wind as a reference; the second rib has a second upwardly sloping windward surface or a second smoothly curved windward surface facing in the upstream direction.

Set up oblique windward side or level and smooth curved windward side in order to regard as the buffet face that meets the wind and assault on first protruding muscle and the second protruding muscle, so can reduce the wind and assault first protruding muscle and the protruding muscle of second and the noise that produces.

As a further improvement of the present invention, the first bead and the second bead each extend over the first lid plate with a predetermined curvature.

First protruding muscle and the crooked extension of second protruding muscle so can form a cambered surface buffering area that meets the wind and strike on first apron, so in order to reduce the noise that first protruding muscle and the second protruding muscle of wind impact and produce.

As a further improvement of the present invention, the first air duct has an air inlet, and the air guiding device is disposed at a downstream position of the air inlet and close to the air inlet.

The air guide device is close to the air inlet, and air is firstly shunted by the air guide device after passing through the air inlet, so that the advancing direction of partial air entering the first air channel from the air inlet can be corrected in time.

As a further improvement of the present invention, the air duct system includes a second air duct and a fan, which are vertically disposed, and the fan is disposed at a joint of the first air duct and the second air duct to blow air from the second air duct into the first air duct.

As a further development of the invention, the fan is configured as an axial fan.

Drawings

FIG. 1 is a longitudinal cut-away view of one embodiment of a refrigerator cabinet of the present invention;

FIG. 2 is an exploded view of one embodiment of the refrigerator cabinet of the present invention;

FIG. 3 is a schematic structural view of an embodiment of the first cover plate, the second cover plate and the fan of the present invention;

FIG. 4 is a schematic structural view of a second embodiment of the first cover plate of the present invention;

FIG. 5 is a schematic structural view of a third embodiment of the first cover plate of the present invention;

reference numerals: 100-refrigerator cabinet; 90-duct system; 10-compartment; 101-a top wall; 102-a rear wall; 103-circulation path; 1-a first air duct; 11-an air outlet; 111-sub air outlet; 12-a first cover plate; 13-a separator; 15-air inlet; 17-left wall; 18-right wall; 2-a second air duct; 2-a second air duct; 21-a second cover plate; 22-air return inlet; 31-a first bead; 311-first windward side; 32-a second bead; 321-a second windward side; 4-a fan; 41-installation cavity; 5-evaporator.

Detailed Description

The invention provides a refrigerator, which solves the problem of uneven indoor temperature distribution of a refrigerator compartment.

The main inventive concept of the invention is a refrigerator, which comprises a compartment and an air duct system, wherein the air duct system comprises a first air duct which is horizontally arranged, the first air duct is provided with an air outlet communicated with the compartment, and an air guide device is arranged at the upstream position of the air outlet of the first air duct in the flowing direction of air, so that the air output quantity or the air output speed of the air entering the compartment through each partial area of the air outlet is basically the same.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a longitudinal cut view of a refrigerator body according to the present invention. The refrigerator cabinet 100 includes a compartment 10 in which articles to be cooled can be stored and an air duct system 90 through which air is circulated inside the compartment 10. The duct system 90 includes a first duct 1 in a horizontal direction and a second duct 2 in a vertical direction. A first cover plate 12 which is horizontally arranged is arranged at the top in the compartment 10, and the first cover plate 12 and the top wall 101 of the compartment 10 define a first air duct 1; a second cover plate 21 is vertically disposed at the back of the chamber 10, and the second cover plate 21 and the back wall 102 of the chamber 10 define the second duct 2. The first cover plate 12 is connected with the second cover plate 21 to communicate the first air duct 1 with the second air duct 2. The fan 4 for circulating the blowing air is arranged at the joint of the first air duct 1 and the second air duct 2. An evaporator 5 is also provided in the second air duct 2 to cool the air passing through the second air duct 2. Referring to fig. 2, the first duct 1 has an outlet 11 opening toward the front end of the compartment 10, and the outlet 11 has substantially the entire transverse width of the compartment 10, so as to ensure that the outlet 11 has a sufficient width in the compartment 10, so that the cool air can uniformly flow out from each part of the outlet area of the outlet 11 and enter each direction in the compartment 10, and ensure uniform distribution of the temperature in the compartment 10.

The arrows in fig. 1 indicate the circulation path 103 of the wind in the compartment 10, specifically: assuming that the air having a relatively high temperature is cooled to become cold air having a relatively low temperature when passing through the evaporator 5 from the position where the evaporator 5 is located, the cold air flows into the first air path 1 from the second air path 2 by the blowing of the fan 4 located at the downstream position of the evaporator 5, and then enters the compartment 10 through the outlet 11 in all directions to cool the articles stored in the compartment 10. The cold air takes heat away in the compartment 10 and then becomes higher temperature air, and returns to the second air duct 2 through the air return opening 22 and enters the next air circulation.

As shown in fig. 2 and 3, a mounting cavity 41 is provided at the junction of the first cover plate 12 and the second cover plate 21 for mounting the fan 4, and the fan 4 is preferably configured as an axial fan. The first air duct 1 further has an air inlet 15 disposed on the first cover plate 12, and the air blown by the fan 4 directly flows into the first air duct 1 through the air inlet 15. The first cover plate 12 has a left wall 17 and a right wall 18, the left wall 17 starts from the left edge of the wind inlet 15 and extends to the left front to connect to the left edge of the wind outlet 11; the right wall 18 starts from the right edge of the air inlet 15 and extends to the right front to be connected to the right edge of the air outlet 11; the entire lateral area of the first air duct 2 is thus defined between the intake opening 15 and the outtake opening 11 by the left wall 17 and the right wall 18, i.e., the lateral width of the first air duct 2 becomes gradually larger in the flow direction of the wind.

Due to the eccentricity of the axial flow fan 4, when the fan 4 rotates, the wind can flow out by deviating from the inclined plane of the fan blade, and the obliquely outgoing wind can rebound a part of wind volume when touching the left wall 17 and the right wall 18, but this still causes the wind volume or the wind speed of a small part of the wind outlet area of the wind outlet 11 to be large, and the wind volume or the wind speed of a large part of the wind outlet area of the wind outlet 11 is extremely small or even has no wind volume, that is, the wind volume or the wind speed of the whole transverse wind outlet area of the wind outlet 11 is uneven, so that the uniformity of the temperature distribution in the compartment 10 can be seriously affected. Preferably, the air outlet 11 is further provided with a plurality of partitions 13 to partition the air outlet 11 into a plurality of sub-air outlets 111, and the plurality of sub-air outlets 111 are uniformly distributed on the whole transverse area of the air outlet 11, but the arrangement also causes the problem that the air output or the air output speed of the whole transverse air outlet area of the air outlet 11 is not uniform, that is, the air output or the air output speed of the sub-air outlet 111 of a part of air outlet area is very large, and the air output or the air output speed of the sub-air outlet 111 of a part of air outlet area is very small or even none.

Therefore, in order to solve the above problem, the direction of the partial wind flowing to the outlet 11 is corrected in advance by providing the wind guide device at the upstream position of the outlet 11 in the first wind tunnel 1 so that the wind flows uniformly to each partial wind outlet region in the lateral direction of the outlet 11. The air guiding device is particularly arranged at the downstream position of the air inlet 15 and close to the air inlet 15, and air is firstly divided by the air guiding device after passing through the air inlet 15, so that the advancing direction of part of air entering the first air duct 1 from the air inlet 15 can be corrected in time. Specifically, the air guiding device may include a first air guiding member and a second air guiding member, but it is obvious to those skilled in the art that the air guiding device may have other designs to achieve the same function, for example, the air guiding device may be one air guiding member or include more than two air guiding members, and so on. The first wind guide guides the wind partially to the middle area of the entire lateral area of the outlet opening 11; the second wind guide guides the wind partially to the middle area and the leftmost edge area of the entire transverse wind outlet area of the wind outlet 11; therefore, the air output or the air output speed of the middle area and the leftmost edge area of the whole transverse air output area of the original air outlet 11 can be changed through the first air guide piece and the second air guide piece even if the air output or the air output speed is low.

Specifically, as shown in fig. 3, in the present embodiment, the first air guide and the second air guide are provided as a first rib 31 and a second rib 32 formed on the first cover plate 12. The vertical height of the first rib 31 on the first cover plate 12 gradually increases from left to right, and the first rib partially guides the air in the first air duct 1 to the middle area of the whole transverse air outlet area of the air outlet 11; the vertical height of the second rib 32 on the first cover plate 12 is substantially uniform from left to right, and the second rib is configured to partially guide the wind in the first wind channel to the middle area and the leftmost edge area of the whole transverse wind outlet area of the wind outlet. The first rib 31 and the second rib 32 are disposed in parallel to each other on the same transverse area of the first cover plate 12, so as to be able to better cooperate with each other to achieve the function of guiding wind in the first wind tunnel 1. The maximum vertical height of the first rib 31 and the second rib 32 on the first cover plate 12 is smaller than the vertical height between the first cover plate 12 and the top wall 101 of the compartment, so that the first rib 31 and the second rib 32 can realize the function of guiding wind in the first air duct 1, but do not completely block part of the wind flowing to the partial wind outlet area of the air outlet 11 in the original flowing direction, that is, part of the wind is guided by the first rib 31 and the second rib 32 and deviates from the original flowing direction, and part of the wind passes over the first rib 31 and the second rib 32 and continues flowing in the original flowing direction.

Fig. 4 is a second embodiment of the first cover plate of the present invention. As shown in fig. 4, the first rib 31 has a first windward surface 311 that is obliquely or smoothly curved upward facing the upstream direction with reference to the flow direction of the wind in the first wind path 1; the second bead 32 has a second wind-facing surface 321 that is upwardly inclined or smoothly curved facing in the upstream direction. Set up oblique windward side or smooth curved windward side in order to be regarded as the buffer face that meets the impact of wind on first protruding muscle 31 and second protruding muscle 32, so can reduce the noise that wind strikes first protruding muscle 31 and second protruding muscle 32 and produce.

Fig. 5 shows a third embodiment of the first cover plate according to the invention. As shown in fig. 5, the first rib 31 and the second rib 32 each extend over the first lid plate 12 with a predetermined curvature. The first rib 31 and the second rib 32 are bent and extended on the first cover plate 12 to form a cambered buffer zone facing the impact of wind, so as to reduce the noise generated by the impact of wind on the first rib 31 and the second rib 32.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A refrigerator comprising a compartment (10) and a duct system (90), the duct system (90) comprising a first duct (1) and an axial fan (4) horizontally arranged, the front end of the first duct (1) having an outlet opening (11) communicating with the compartment (10), the fan being arranged to cause a wind to flow towards the outlet opening, a plurality of partitions (13) being provided in the outlet opening to partition the outlet opening into a plurality of sub-outlet openings (111), characterized in that, in the direction of flow of the wind, the first duct (1) is provided with air guiding means (31, 32) at a position upstream of the outlet opening (11) thereof for substantially equalizing the output or output speed of the wind entering the compartment (10) through respective partial areas of the outlet opening (11); the air guide device is overlapped with the plurality of sub air outlets along the transverse direction of the first air duct.

2. A refrigerator as claimed in claim 1, characterized in that said outlet mouth (11) has approximately the entire transverse width of said compartment (10).

3. The refrigerator according to claim 1 or 2, wherein the plurality of sub-outlets (111) are uniformly distributed over the entire lateral area of the outlet (11), and the air volume or the air velocity of the air entering the compartment (10) through each sub-outlet (111) is substantially the same under the guidance of the air guiding device (31, 32).

4. The refrigerator according to claim 1 or 2, characterized in that the air guide means (31, 32) comprises a first air guide (31) and a second air guide (32), the first air guide (31) guiding the air partially to a middle area of the entire lateral area of the air outlet (11); the second wind guide (32) guides the wind partially to the middle area and the leftmost edge area of the whole lateral area of the wind outlet (11).

5. The refrigerator according to claim 1, characterized in that the air duct system (90) comprises a first cover plate (12) arranged horizontally, the first air duct (1) being defined by the first cover plate (12) and a top wall (101) of the compartment (10); the first air guide (31) and the second air guide (32) are provided as first ribs (31) and second ribs (32) formed on the first cover plate (12).

6. The refrigerator according to claim 5, wherein the vertical height of the first rib (31) on the first cover plate (12) is gradually increased from left to right; the vertical height of the second convex rib (32) on the first cover plate (12) is basically consistent from left to right.

7. The refrigerator according to claim 5, wherein the first rib (31) and the second rib (32) are provided in parallel with each other on the same lateral area of the first cover plate (12).

8. The refrigerator according to claim 5, wherein the maximum vertical height of the first rib (31) and the second rib (32) on the first cover plate (12) is smaller than the vertical height between the first cover plate (12) and the compartment top wall (101).

9. The refrigerator according to claim 5, wherein the first bead (31) has a first windward surface facing in an upstream direction and curved upward obliquely or smoothly with reference to a flowing direction of wind; the second rib (32) has a second wind-facing surface facing in the upstream direction that is obliquely or smoothly curved upward.

10. The refrigerator of claim 5, wherein the first rib (31) and the second rib (32) each extend over the first cover plate (12) with a predetermined curvature.

11. The refrigerator as claimed in claim 1 or 2, wherein the first air duct 1 has an air inlet (15), and the air guiding device (31, 32) is disposed at a position downstream of the air inlet (15) and close to the air inlet (15).

12. The refrigerator according to claim 1 or 2, wherein the duct system (90) includes a second duct (2) vertically disposed, and the axial flow fan (4) is disposed at a junction of the first duct (1) and the second duct (2) to blow the wind from the second duct (2) into the first duct (32).