CN107084573B

CN107084573B - Refrigerator with a door

Info

Publication number: CN107084573B
Application number: CN201710271514.4A
Authority: CN
Inventors: 王冬梅; 张玉琢
Original assignee: Qingdao Haier Co Ltd
Current assignee: Qingdao Haier Co Ltd
Priority date: 2017-04-24
Filing date: 2017-04-24
Publication date: 2019-12-24
Anticipated expiration: 2037-04-24
Also published as: CN107084573A

Abstract

The invention provides a refrigerator, which comprises an inner container, and further comprises: the air channel back plate is arranged in the inner container, and the air channel back plate and the inner container define a storage compartment chamber positioned in front of the air channel back plate and an evaporator chamber positioned behind the air channel back plate; the air duct back plate is provided with a first air supply outlet through which cold air in the evaporator chamber flows into the storage chamber; and the fan is arranged on the rear wall of the inner container and horizontally extends to the first air supply opening, and the fan is configured to promote the cold air in the evaporator chamber to flow into the storage compartment chamber through the first air supply opening. The invention can effectively reduce the vibration of the fan in the refrigerator, thereby reducing the noise of the refrigerator. The invention can reduce the cost of the refrigerator and is convenient to install.

Description

Refrigerator with a door

Technical Field

The invention relates to the field of refrigeration and freezing storage, in particular to a refrigerator.

Background

The refrigerator is an essential household appliance in daily life, in recent years, the air-cooled refrigerator is increasingly popularized, and the refrigerator has the characteristics of automatic defrosting, high refrigerating speed, uniform cold air distribution, accurate temperature control, difficulty in tainting odor and the like, and is accepted by wide users. The freezing air duct of the existing air-cooled refrigerator generally comprises a front air duct cover plate, a rear air duct cover plate, an air duct formed by foam, a fan and the like, wherein the fan is arranged on the air duct cover plate. Because wind channel backplate weight is lighter unstable inadequately, this kind of mode leads to the fan to drive wind channel backplate vibrations when rotating to produce certain noise, be unfavorable for the silence of refrigerator, especially when night, produced certain influence to user's rest.

In addition, on the basis of the structure of current wind channel backplate and fan, generally need set up glass pipe defrosting heater strip under the evaporimeter, this kind of mode cost is higher to the assembly is comparatively complicated, and the defrosting effect is general.

Disclosure of Invention

In view of the above, the present invention has been made to provide a refrigerator that solves the above problems, or at least partially solves the above problems.

An object of the present invention is to reduce vibration of a fan in a refrigerator, thereby reducing noise of the refrigerator.

Another object of the present invention is to reduce the cost of the refrigerator and facilitate installation.

Particularly, the invention provides a refrigerator, which comprises an inner container, and the refrigerator also comprises:

the air channel back plate is arranged in the inner container, and the air channel back plate and the inner container define a storage compartment chamber positioned in front of the air channel back plate and an evaporator chamber positioned behind the air channel back plate; the air duct back plate is provided with a first air supply outlet through which cold air in the evaporator chamber flows into the storage chamber; and

and the fan is arranged on the rear wall of the inner container and horizontally extends to the first air supply opening, and the fan is configured to promote the cold air in the evaporator chamber to flow into the storage compartment chamber through the first air supply opening.

Optionally, the fan extends into the first air supply opening.

Optionally, the refrigerator further comprises: and the rectifying plate is arranged in front of the first air supply outlet and is parallel to the rear wall of the inner container, so that air flow blowing to the rectifying plate is blocked by the rectifying plate and then flows to the storage compartment from the periphery of the rectifying plate.

Optionally, the rectifying plate is square, and a projection of the rectifying plate on a plane perpendicular to the front-rear direction covers the first air supply outlet.

Optionally, the refrigerator further comprises: a plurality of erection columns, every the erection column extends along fore-and-aft direction, and every the front end of erection column with the rear surface of the corner of cowling panel links to each other, every the rear end of erection column with the front surface of wind channel backplate links to each other.

Optionally, the first air supply outlet is arranged at the upper part of the air duct back plate; and the lower part of the air duct back plate is also provided with at least one air return inlet.

Optionally, the refrigerator further comprises: and the foam plate is attached to the rear surface of the air duct back plate, is provided with a second air supply opening matched with the first air supply opening in a copying manner, and is used for enabling cold air in the evaporator chamber to flow into the storage compartment chamber through the second air supply opening and the first air supply opening in sequence.

Optionally, the foam board is provided with an arc-shaped bulge extending backwards from the upper edge of the second air supply outlet and used for blocking the upward flow of the air flowing to the fan from the lower part of the fan.

Optionally, the fan includes: a bracket, the rear end of which is provided with a flat plate type mounting part, and the mounting part is closely mounted on the rear wall of the inner container; the wind wheel is rotatably arranged at the front end of the bracket, and the pivot axis of the wind wheel extends along the front-back direction; the wind wheel is positioned in the first air supply outlet and the second air supply outlet.

Optionally, the refrigerator further comprises: the shock pad is made by elastic material, set up in the installation department of support with between the back wall of inner bag, be used for alleviateing when the fan rotates the vibrations of inner bag.

The refrigerator of the invention is provided with the first air supply opening through which cold air in the evaporator chamber flows into the storage chamber, and the fan is arranged on the rear wall of the inner container and horizontally extends to the first air supply opening, so that the cold air in the evaporator chamber can flow into the storage chamber through the first air supply opening. That is to say, the refrigerator of the invention installs the fan on the back wall of the inner container, and the first air supply opening is arranged at the corresponding position of the air duct back plate, so that cold air in the evaporator chamber is blown into the storage chamber through the first air supply opening under the action of the fan, the existing mode of directly installing the fan on the air duct back plate is replaced, the vibration of the fan during the operation of the refrigerator can be effectively reduced, and the noise of the refrigerator is reduced. Moreover, the structure is convenient to assemble and low in cost.

Further, because the refrigerator also comprises the rectifying plate which is arranged in front of the first air supply outlet and is parallel to the rear wall of the inner container, the air flow blown to the rectifying plate can be blocked by the rectifying plate and then flows to the storage compartment from the periphery of the rectifying plate. The refrigerator provided by the invention has the advantages that the rectifying plate is arranged, so that cold air can be uniformly blown to the storage chamber, the temperature consistency of the storage chamber is improved, the cold air can be prevented from being directly blown to the storage chamber, and the influence on the freshness preservation of stored goods caused by the fact that the cold air is directly blown to the stored goods is avoided.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic partial structural view of a refrigerator according to one embodiment of the present invention;

FIG. 2 is a schematic partial cross-sectional view of the refrigerator shown in FIG. 1; and

fig. 3 is a schematic exploded view of a partial sectional view of the refrigerator shown in fig. 2.

Detailed Description

Fig. 1 is a schematic partial structural view of a refrigerator according to one embodiment of the present invention. Referring to fig. 1 to 3, an embodiment of the present invention provides a refrigerator, which may include an inner container 100, and the refrigerator may be an air-cooled refrigerator. In particular, the refrigerator may further include a duct back plate 200 and a blower fan 300. Wherein, the air duct back plate 200 can be disposed in the inner container 100, and the air duct back plate 200 and the inner container 100 define a storage compartment 700 located in front of the air duct back plate 200 and an evaporator compartment 800 located in back of the air duct back plate 200, it should be understood by those skilled in the art that the storage compartment 700 is generally a freezing compartment of a refrigerator. The air duct back 200 may be provided with a first air supply opening 210 through which cold air in the evaporator compartment 800 flows into the storage compartment 700. The blower 300 may be installed at the rear wall of the inner container 100 and horizontally extend toward the first blowing port 210, and the blower 300 is configured to induce cool air in the evaporator chamber 800 to flow into the storage compartment 700 through the first blowing port 210. That is to say, in the refrigerator of the embodiment, the blower 300 is installed on the rear wall of the inner container 100, and the first air supply opening 210 is opened at the corresponding position of the air duct back plate 200 opposite to the blower 300, so that the cold air in the evaporator chamber 800 is blown into the storage compartment 700 through the first air supply opening 210 under the action of the blower 300, and the existing mode of directly installing the blower 300 on the air duct back plate 200 is replaced, so that the vibration of the blower 300 during the operation of the refrigerator can be effectively reduced, and the noise of the refrigerator is reduced. Moreover, the structure is convenient to assemble and low in cost. In addition, the glass tube defrosting heater strip that often takes under the evaporimeter can be saved to the structure of this embodiment, is ordinary subsides courage defrosting heater strip instead, and simple structure not only is convenient for install, still makes the defrosting effect more obvious.

Referring to fig. 2 and 3, in some embodiments of the present invention, the blower 300 may extend into the first air blowing opening 210, that is, the rear end of the blower 300 is fixed to the rear wall of the inner container 100, and the front end of the blower extends into the first air blowing opening 210. The blower 300 of the present embodiment can be understood as driving the cold air in the evaporator chamber 800 to flow into the storage compartment 700 at the first air outlet 210, which is less likely to cause turbulence in the air flow in the evaporator chamber 800 than when the blower 300 is located behind the first air outlet 210. In some alternative embodiments, the front of the fan 300 may be located behind the first supply port 210, i.e. the fan 300 is disposed opposite to and spaced apart from the first supply port 210.

As shown in fig. 2 and 3 in combination, in some embodiments of the present invention, the refrigerator may further include a rectifying plate 400. The rectifying plate 400 may be disposed in front of the first blowing port 210 and parallel to the rear wall of the inner container 100, so that the air flow blowing toward the rectifying plate 400 is blocked by the rectifying plate 400 and then flows toward the storage compartment 700 from the periphery of the rectifying plate 400. The refrigerator of this embodiment can avoid the cold air flowing out from the first air supply opening 210 from directly blowing to the storage compartment 700 because of the arrangement of the rectification plate 400, and the storage can be kept as fresh as possible because the food is directly blown and the moisture is easily lost. Moreover, the rectifying plate 400 can also blow cold air to the storage compartment 700 uniformly along the periphery of the rectifying plate 400, so that the temperature consistency of the storage compartment 700 is improved, and the refrigeration effect and the preservation quality are improved. In some embodiments, the rectifying plate 400 may have a square shape, but may also have other shapes such as a circular shape. The first blowing port 210 may be circular, and the projection of the rectifying plate 400 on the plane perpendicular to the front-rear direction covers the first blowing port 210, that is, the rectifying plate 400 should completely block the cold air blown from the first blowing port 210 in the front-rear direction, so that the rectifying effect of the rectifying plate 400 can be improved. In other embodiments, the refrigerator may further include a plurality of mounting posts 500. Each of the mounting posts 500 may extend in the front-rear direction, and a front end of each of the mounting posts 500 is connected to a rear surface of a corner of the rectification plate 400, and a rear end of each of the mounting posts 500 is connected to a front surface of the duct back plate 200. Preferably, the number of the mounting posts 500 is four, respectively located at four corners of the square rectification plate 400. Also, the four mounting posts 500 may have elasticity to have a good shock-absorbing effect and a low noise when cold wind is blown toward the rectifying plate 400.

In order to improve the rectification effect of the rectification plate 400, in some embodiments of the invention, a plurality of ribs extending from the center to the periphery of the rectification plate 400 may be disposed on the rear surface of the rectification plate 400, and a flow passage may be defined between every two ribs, so that the cold air blocked by the rectification plate 400 may flow to the periphery of the rectification plate 400 according to different flow passage directions as much as possible, and the turbulence of the flow of the cold air may be avoided as much as possible.

In some embodiments of the present invention, the first air supply opening 210 may be opened at an upper portion of the duct back plate 200, the lower portion of the duct back plate 200 is also opened with at least one air return opening 220, and the evaporator may be disposed at a lower portion of the evaporator chamber 800 and below the blower 300. The present embodiment realizes that the air flow in the lower part of the evaporator chamber 800 flows upwards after being cooled by the evaporator, flows to the storage compartment 700 through the first supply opening 210 under the action of the blower 300, and the air flow in the storage compartment 700 flows back to the evaporator of the evaporator chamber 800 through at least one return air opening 220, so as to realize the circulation of the air flow. In some embodiments, the distance between the first air blowing opening 210 and the top wall of the inner container 100 may be 1/3 to 1/2 of the distance between the first air blowing opening 210 and the bottom wall of the inner container 100, and the diameter of the first air blowing opening 210 may be 1/5 to 1/3 of the height of the duct back plate 200. In other embodiments, the number of the return air inlets 220 may be plural. As shown in fig. 2 or fig. 3, for example, the plurality of air returns 220 are located at the lower portion of the air duct back plate 200, and may be arranged in two transverse rows. In some embodiments, the duct back 200 can have a baffle extending rearward from its rear surface and then extending downward to block at least one of the return air inlets 220, the baffle preventing the hot air flowing back from the return air inlets 220 to the evaporator compartment 800 from rapidly flowing upward, so that the air flows under the evaporator under the action of the baffle and can exchange heat with the evaporator sufficiently.

In some embodiments of the present invention, the refrigerator may further include a foam sheet 600. The foam board 600 may be attached to the rear surface of the duct back 200, and the foam board 600 may be provided with a second air supply opening 610 that is contoured and matched with the first air supply opening 210, so that the cold air in the evaporator chamber 800 flows into the storage compartment 700 through the second air supply opening 610 and the first air supply opening 210 in sequence. The foam board 600 of the present embodiment can isolate the heat transfer between the evaporator chamber 800 and the storage compartment 700 as much as possible, and is favorable for the stability of the duct back 200. In some embodiments, the foam sheet 600 may have an arc-shaped protrusion 620 extending rearward from the upper edge of the second supply opening 610 to block the upward flow of air from below the blower 300 to the blower 300, i.e., to prevent cold air from flowing upward from below the blower 300 to the blower 300 from flowing completely upward through the first supply opening 210 to the compartment 700, so as to avoid turbulence of the air flow in the evaporator compartment 800 as much as possible and facilitate the circulation of the air flow. Of course, the arc-shaped protrusion 620 may also be specifically configured according to the specific airflow direction and the structure of the air duct back plate 200.

In some embodiments of the invention, the wind turbine 300 may include a bracket 310 and a wind wheel 320. The bracket 310 may have a flat plate type mounting portion at a rear end thereof, which is fittingly mounted to a rear wall of the inner container 100. Specifically, the bracket 310 may include a frustum-shaped support portion and a mounting plate extending vertically from a periphery of the support portion, and the mounting plate may be rigidly fixed to the rear wall of the inner container 100 by screws. The wind wheel 320 is rotatably disposed at the front end of the bracket 310, i.e., mounted at the front end of the support portion, and the pivot axis of the wind wheel 320 extends in the front-rear direction. The wind rotor 320 may be positioned in the first and second blowing ports 210 and 610. In some embodiments, the refrigerator may further include a shock pad, which may be made of an elastic material, such as a rubber material, and which may be disposed between the mounting portion of the bracket 310 and the rear wall of the inner container 100, for reducing vibration of the inner container 100 when the blower fan 300 rotates, thereby further reducing noise.

As shown in conjunction with fig. 2 and 3, in some embodiments of the present invention, the refrigerator may further include an evaporator, a first heating wire, and a second heating wire. Wherein, the evaporimeter can set up in the evaporimeter room for provide cold volume for storing compartment 700. The first heater wire may be disposed in the evaporator chamber 800 in front of the evaporator to melt frost on the evaporator, and the first heater wire may be multi-folded in the same plane perpendicular to the front-rear direction. The second heating wire can be arranged above the bottom wall of the liner 100 and used for melting frost around the water outlet formed in the bottom wall of the liner 100, and the second heating wire can also be in a multi-fold shape and surrounds the water outlet. And, first heater strip and second heater strip all include heating core and parcel at the peripheral lag of heating core, and the lag can be used to avoid on the evaporimeter or the outlet around the frost melt the back soak the heating core and produce the potential safety hazard. The refrigerator of this embodiment need not to set up extra equipment that prevents to add the core and is wetted by the white water of changing, the mode that uses lag parcel heating core has replaced original hanging glass tube heating core or steel pipe heating core in the evaporimeter below, and need set up the breakwater in the top of glass tube heating core or steel pipe heating core, has greatly simplified the structure of changing the frost, easy to assemble, the cost is reduced, simultaneously because first heater strip is more close to the evaporimeter, can effectively promote the frost effect of changing.

Further, the conventional defrosting method of the glass tube heating core or the steel tube heating core suspended below the evaporator generally does not provide a special defrosting structure at the water outlet on the upper surface of the inner container 100, and because the water outlet needs to discharge water, the glass tube heating core or the steel tube heating core should have a certain distance from the water outlet so as to discharge defrosting water. However, although this structure does not affect the discharge of the defrosting water, the glass tube heater core or the steel tube heater core is far from the drain opening, and thus the frost on the upper surface of the inner container 100, particularly near the drain opening, cannot be melted effectively. This embodiment is on the basis that changes original structure of changing frost, has set up the second heater strip in addition at inner bag 100's upper surface, can change the frost to the evaporimeter when especially scuttle department changes the frost to inner bag diapire upper surface, has promoted the defrosting effect.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. The refrigerator comprises an inner container and is characterized in that the refrigerator further comprises:

the fan is arranged on the rear wall of the inner container and horizontally extends to the first air supply opening, and the fan is configured to promote cold air in the evaporator chamber to flow into the storage compartment chamber through the first air supply opening;

the fan includes:

a bracket, the rear end of which is provided with a flat plate type mounting part, and the mounting part is closely mounted on the rear wall of the inner container;

the wind wheel is rotatably arranged at the front end of the support, and the pivot axis of the wind wheel extends along the front-back direction.

2. The refrigerator as claimed in claim 1, wherein the refrigerator further comprises a cover for covering the opening of the door

The fan extends into the first air supply opening.

3. The refrigerator according to claim 2, further comprising:

and the rectifying plate is arranged in front of the first air supply outlet and is parallel to the rear wall of the inner container, so that air flow blowing to the rectifying plate is blocked by the rectifying plate and then flows to the storage compartment from the periphery of the rectifying plate.

4. The refrigerator as claimed in claim 3, wherein the refrigerator further comprises a cover for covering the opening of the door

The rectifying plate is square, and the projection of the rectifying plate on the plane perpendicular to the front-back direction covers the first air supply outlet.

5. The refrigerator according to claim 4, further comprising:

a plurality of erection columns, every the erection column extends along fore-and-aft direction, and every the front end of erection column with the rear surface of the corner of cowling panel links to each other, every the rear end of erection column with the front surface of wind channel backplate links to each other.

6. The refrigerator as claimed in claim 2, wherein the refrigerator further comprises a cover for covering the opening of the door

The first air supply outlet is formed in the upper part of the air duct back plate;

and the lower part of the air duct back plate is also provided with at least one air return inlet.

7. The refrigerator according to claim 6, further comprising:

and the foam plate is attached to the rear surface of the air duct back plate, is provided with a second air supply opening matched with the first air supply opening in a copying manner, and is used for enabling cold air in the evaporator chamber to flow into the storage compartment chamber through the second air supply opening and the first air supply opening in sequence.

8. The refrigerator as claimed in claim 7, wherein the refrigerator further comprises a cover for covering the opening of the door

The foam plate is provided with an arc-shaped bulge extending backwards from the upper edge of the second air supply opening and used for blocking the upward flow of the air flow flowing to the fan from the lower part of the fan.

9. The refrigerator according to claim 7,

the wind wheel is positioned in the first air supply outlet and the second air supply outlet.

10. The refrigerator according to claim 9, further comprising:

the shock pad is made by elastic material, set up in the installation department of support with between the back wall of inner bag, be used for alleviateing when the fan rotates the vibrations of inner bag.