WO2022021962A1

WO2022021962A1 - Refrigerator

Info

Publication number: WO2022021962A1
Application number: PCT/CN2021/089085
Authority: WO
Inventors: 孙敬龙; 潘毅广; 张海鹏; 丁龙辉; 齐聪山
Original assignee: 海信（山东）冰箱有限公司
Priority date: 2020-07-31
Filing date: 2021-04-22
Publication date: 2022-02-03
Also published as: CN114061201A

Abstract

Disclosed in embodiments of the present application is a refrigerator, comprising: an air duct housing, the air duct housing being provided with an air inlet and an air outlet, and an air duct chamber being formed in the air duct housing; and a fan apparatus, the fan apparatus being disposed in the air duct chamber, the fan apparatus comprising a fan and a damping assembly, the fan being fixedly arranged on the damping assembly, the damping assembly being fixedly arranged on the inner side of the housing, and the damping assembly being used for reducing the vibration transmission efficiency of the fan.

Description

a refrigerator

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application filed with the China Patent Office on July 31, 2020, the application number is 202010761037.1, and the invention name is a refrigerator, the entire contents of which are incorporated into this application by reference.

technical field

The present application relates to the technical field of refrigerators, and in particular, to a refrigerator.

Background technique

Air-cooled refrigerators use fans to promote the flow of gas in the refrigerator to achieve cooling. Specifically, the airflow flows through the evaporator for heat exchange to become low-temperature airflow, and the fan blows the low-temperature air into the refrigerator compartment to achieve cooling. Air-cooled refrigerators are widely favored by users because of their fast cooling speed, even distribution of cooling capacity, and no freezing of the inner wall of the freezer.

However, when the air-cooled refrigerator is refrigerating, the fan will generate a large vibration during the operation. In addition, the poor consistency of production control leads to the poor dynamic balance of the fan blades, which further leads to the deterioration of vibration. As a vibration source, the fan will cause vibration of the parts in contact with it, and the vibration of the fan and its contact parts will cause the refrigerator to generate relatively large noise.

Based on this, how to reduce the structure noise generated by the fan transmitting the vibration to the air duct structure is an urgent technical problem to be solved.

SUMMARY OF THE INVENTION

On the one hand, some embodiments of the present application provide a refrigerator, comprising: an air duct housing, the air duct housing is provided with an air inlet and an air outlet, and an air duct chamber is formed in the air duct housing; a fan device, The fan device is arranged in the air duct chamber, and the fan device includes a fan and a vibration damping assembly, the fan is fixedly arranged on the vibration damping assembly, and the vibration damping assembly is fixedly arranged inside the casing , the vibration damping assembly is used to reduce the vibration transmission efficiency of the fan.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1A is a schematic front view of an air duct housing structure according to an embodiment;

FIG. 1B is a schematic view of the back of the air duct housing structure according to the embodiment;

2A is a schematic front view of an internal structure of an air duct housing according to an embodiment;

2B is a schematic view of the back of the internal structure of the air duct housing according to the embodiment;

3 is a schematic front view of an air duct housing structure in an exploded state according to an embodiment;

4 is a schematic view of the back of the air duct housing structure in an exploded state according to an embodiment;

5 is a schematic diagram of the blower device in an exploded state according to an embodiment;

6A is a side view of a bumper according to an embodiment;

6B is a top view of a buffer according to an embodiment;

FIG. 7 is a schematic view of the inner side structure of the first cover body in the air duct housing according to the embodiment.

The reference numerals are explained as follows:

100. Air duct shell;

110. The first cover plate;

111. The first screw hole; 112. Mounting nut;

113. Gas deflector; 114. Air outlet;

120. The second cover;

121. Air inlet; 122. Second screw hole;

123, limit column; 124, limit slot;

125. Limiting piece; 126. Second buckle;

200. Fan device;

210, fan; 220, buffer;

221, the first buffer part; 222, the elastic protrusion;

223, annular groove; 224, second buffer;

225, elastic rib; 226, through hole;

230, the pressure ring of the buffer part; 231, the first buckle;

240, fan bracket; 241, installation part;

242, card foot;

300, fixed plate;

310, mounting hole; 320, third screw hole;

330, ventilation holes;

detailed description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying The device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present application.

The terms "first", "second" and "third" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implying the number of technical features indicated. Thus, a feature defined as "first", "second", "third" may expressly or implicitly include one or more of that feature. In the description of this application, unless stated otherwise, "plurality" means two or more.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected", "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, or It can be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations.

The refrigerator proposed in the present application realizes refrigeration by using a fan to promote the flow of gas in the refrigerator, the airflow flows through the evaporator for heat exchange and becomes a low-temperature airflow, and the fan blows the low-temperature air into the refrigerator compartment through the air duct to achieve refrigeration.

1A is a schematic front view of an air duct housing structure according to an embodiment; FIG. 1B is a schematic rear view of an air duct housing structure according to an embodiment; FIG. 2A is a front schematic view of the internal structure of the air duct housing according to the embodiment; 2B is a schematic view of the back of the internal structure of the air duct housing according to the embodiment; FIG. 3 is a schematic front view of the air duct housing structure according to the embodiment in an exploded state; FIG. 4 is an exploded state of the air duct housing structure according to the embodiment. 5 is a schematic diagram of the blower device according to the embodiment in an exploded state; FIG. 6A is a side view of the buffer according to the embodiment; FIG. 6B is a top view of the buffer according to the embodiment; Schematic diagram of the inner side structure of the first cover body in the tunnel casing.

See FIGS. 1A to 7 . As shown in the figure, the refrigerator proposed in the present application includes an air duct housing 100 and a fan device 200, wherein the air duct housing 100 is provided with an air inlet 121 and an air outlet 114, and an air duct chamber is formed in the air duct housing 100 , the fan device 200 is arranged in the air duct chamber, the fan device 200 includes a fan 210 and a vibration damping component, the fan 210 is fixedly arranged on the vibration damping component, the vibration damping component is fixedly arranged inside the casing, and the vibration damping component is used to reduce the fan 210 vibration transfer efficiency.

Please continue to refer to Figure 3 and Figure 4.

In an embodiment of the present application, the air duct housing 100 may be enclosed by a first cover plate 110 and a second cover plate 120 to form an air duct chamber.

Further, the air outlet 114 may be provided on the first cover body, and the air inlet port 121 may be provided on the second cover body, wherein one air inlet port 121 or multiple air inlet ports 121 may be provided on the second cover body. The advantage of arranging a plurality of air inlets 121 is that the speed of the air flow when passing through the air inlets 121 can be reduced, so that the vibration intensity of the air flow when passing through the air inlets 121 can be weakened, thereby reducing the air flow noise.

In other embodiments of the present application, the air duct housing 100 may also be integrally formed.

In the present application, the fan device 200 equipped with the vibration damping assembly is arranged in the air duct housing 100, so that the vibration energy generated by the fan 210 during operation is absorbed by the vibration damping assembly, so that the vibration will not be transmitted to the wind. The duct housing 100 and other components in the air duct housing 100 will not cause the overall vibration of the air duct structure, thereby reducing noise.

Please continue to refer to Figures 3 to 6B.

In the refrigerator provided in the present application, the vibration damping assembly includes a fan support 240 and a buffer member 220 disposed on the fan support 240. The fan support 240 is used to support the fan 210, and the buffer member 220 includes a body and a first extending along the thickness direction of the body. The buffer portion 221 and the first buffer portion 221 are pressed against the air duct housing 100 .

In one embodiment of the present application, the buffer member 220 may be a rubber pad with elastic properties.

In an embodiment of the present application, the buffer member 220 may also be an air cushion with elastic properties.

In the present application, the vibration damping assembly includes a fan support 240 and a buffer 220 disposed on the fan support 240. The fan 210 is supported on the fan support 240, so that when the fan 210 is running, the fan support 240 is accompanied by the fan 210. Vibration, because the buffer member 220 is provided on the fan bracket 240, and the first buffer portion 221 on the buffer member 220 abuts on the air duct housing 100, so that the vibration of the fan 210 and the fan bracket 240 is transmitted on the buffer member 220. Blocking will not cause vibration of the air duct housing 100 , and thus will not amplify the noise generated when the fan 210 is running.

Please continue to refer to Figure 6A.

In the refrigerator provided by the present application, the body of the buffer member 220 may be cylindrical, and the first buffer portion 221 of the buffer member 220 may be provided with an elastic protrusion 222 . In actual effect, the elastic protrusions 222 can reduce the vibration transmission efficiency of the fan 210 along the thickness direction of the buffer member 220 , thereby reducing the vibration of the fan 210 to the air duct housing 100 in the direction perpendicular to the air duct housing 100 . transfer.

In the present application, the body of the buffer member 220 may be in the shape of a cylinder or a square column.

In one embodiment of the present application, the elastic protrusions 222 may be configured as elastic bosses.

In an embodiment of the present application, the elastic protrusions 222 may also be configured as hemispherical protrusions.

In an embodiment of the present application, the number of the elastic protrusions 222 may be one, and when the number of the elastic protrusions 222 is one, the elastic protrusions 222 may be provided at the center of the first buffer portion 221 .

In an embodiment of the present application, the number of the elastic protrusions 222 may also be multiple. When the number of the elastic protrusions 222 is multiple, the multiple elastic protrusions 222 may be symmetrically arranged on the first buffer portion. 221.

Please continue to refer to Figure 4, Figure 5 and Figure 6B.

In the refrigerator provided by the present application, the buffer member 220 is provided with a through hole 226 along the thickness direction of the body, the second buffer portion 224 is arranged in the through hole 226, and the air duct housing 100 is provided with a limiting column 123, and the through hole 226 is used for It is placed on the limiting post 123 .

In the present application, the through hole 226 may be opened at an intermediate position of the buffer member 220 along the thickness direction of the body.

In the present application, the limiting column 123 provided on the air duct housing 100 is inserted into the through hole 226 provided with the second buffer portion 224 , so that the vibration of the fan 210 and the fan bracket 240 can be transmitted to the buffer member 220 Being blocked, the vibration of the air duct housing 100 will not be caused, so that the noise generated when the fan 210 is running will not be amplified.

By fitting the through hole 226 of the buffer member 220 on the limiting column 123 , the fan 210 can also be fixed on the air duct housing 100 with the fan bracket 240 .

In addition, the limiting post 123 can also prevent the buffer member 220 from being crushed.

Please continue to refer to Figure 4 and Figure 5.

In the refrigerator provided by the present application, the air duct housing 100 is further provided with a limiting piece 125 , the limiting piece 125 and the limiting column 123 are enclosed to form a limiting groove 124 , and the buffer member 220 is limited in the limiting groove 124 .

In an embodiment of the present application, the limiting piece 125 may be closed and disposed on the air duct housing 100 . When the limiting piece 125 is closed and disposed on the air duct housing 100 , the space between the limiting piece 125 and the limiting post 123 is closed. The annular limiting groove 124 is formed together.

In an embodiment of the present application, the limiting piece 125 may be arranged on the air duct housing 100 half-open and half-closed. The pillars 123 are enclosed to form a semi-annular limiting groove 124 .

In the present application, the shape of the limiting groove 124 matches the actual contour of the buffer member 220. Therefore, limiting the buffer member 220 in the limiting groove 124 can prevent the buffer member 220 from moving in the air duct housing 100. Therefore, the fixing of the fan 210 and the fan bracket 240 on the air duct housing 100 is further strengthened.

Please continue to refer to Figure 6B.

In the refrigerator provided by the present application, the second buffer portion 224 is provided with a plurality of elastic ribs 225 arranged at intervals and protruding from the wall of the through hole 226 toward the inside of the through hole 226 .

In the present application, the shape of the through hole 226 may be a circle, a square, or other shapes.

In one embodiment of the present application, the elastic rib 225 may be provided in a semi-cylindrical shape.

In an embodiment of the present application, the elastic rib 225 may also be arranged in a square column shape.

In an embodiment of the present application, a plurality of elastic ribs 225 may be spaced and symmetrically arranged on the second buffer portion 224 .

In the present application, arranging a plurality of spaced elastic ribs 225 in the through hole 226 can reduce the vibration transmission efficiency of the fan 210 in the direction perpendicular to the thickness of the buffer member 220, so as not to cause vibration of the air duct housing 100, Therefore, the noise generated when the fan 210 is running will not be amplified.

Please continue to refer to Figure 5 and Figure 6A.

In the refrigerator provided in the present application, the body of the buffer member 220 is provided with an annular groove 223 in the circumferential direction. The fan bracket 240 includes a mounting portion 241 and a clip 242 disposed outside the mounting portion 241. The mounting portion 241 is used for mounting the fan 210 , the clamping feet 242 are clamped in the annular groove 223 .

In the present application, the body of the buffer member 220 is provided with an annular groove 223 in the circumferential direction, so that the side view of the body of the buffer member 220 is I-shaped.

In an embodiment of the present application, the shape of the clip 242 may be a C-shape.

In an embodiment of the present application, the shape of the clip 242 may also be an O-shape.

In the present application, the buffer member 220 can be nested on the clamping feet 242 . In this way, the fan 210 is installed on the mounting portion 241 of the fan bracket 240 , and the clamping legs 242 of the fan bracket 240 are clamped in the annular shape of the buffer member 220 . In the groove 223, the buffer member 220 is limited in the limit groove 124 formed by the limit post 123 and the limit piece 125, which can fix the fan 210. More importantly, the buffer member 220 can block the The fan 210 transmits vibrations to the air duct housing 100 during operation, so as not to cause vibration of the air duct housing 100 , and thus not to amplify the noise generated by the fan 210 during operation.

In the present application, the number of buffer members 220 may be set to multiple, for example, it may be set to two, three, or four, which is not specifically limited in this application.

For those skilled in the art, it should be understood that the same number of the clamping feet 242 , the limiting posts 123 and the limiting pieces 125 should be provided correspondingly to the buffer members 220 .

Please continue to refer to Figure 3 to Figure 5.

In the refrigerator provided in the present application, the vibration damping assembly further includes a buffering member pressing ring 230, the buffering member pressing ring 230 is provided with a first snap 231, the air duct housing 100 is provided with a second snapping 126, and the buffering member presses The ring 230 is connected with the air duct housing 100 through the first snap 231 and the second snap 126 , so that the buffer member 220 is pressed against the inner side of the air duct housing 100 .

In the present application, the punching ring and the air duct housing 100 are snap-connected with the first snap 231 and the second snap 126 to squeeze the buffer 220 on the inside of the air duct housing 100. The advantages are: On the one hand, the displacement of the buffer member 220 can be limited, and the fixation of the buffer member 220 in the air duct housing 100 can be strengthened, thereby indirectly strengthening the fixation of the fan 210 in the air duct housing 100 . On the other hand, the fixing of the fan 210 in the air duct housing 100 is strengthened, so that the fan 210 will not vibrate greatly due to loose installation, thereby preventing the generation of loud noise.

Proceed to Figure 7.

In the refrigerator provided by the present application, the inner side of the air duct housing 100 is further provided with a gas guide plate 113 .

In the present application, the air duct housing 100 is enclosed by the first cover plate 110 and the second cover plate 120 , and the gas guide plate 113 may be disposed inside the first cover plate 110 through which the airflow passes.

In the present application, the gas deflector 113 disposed inside the air duct housing 100 can guide the airflow and reduce eddy currents, thereby reducing aerodynamic noise and realizing a quiet air duct.

Please continue to refer to Figures 2 to 4.

In the refrigerator provided in the present application, the refrigerator further includes a fixing plate 300 . The fixing plate 300 is fixedly arranged in the air duct chamber. The fixing plate 300 is provided with a mounting hole 310 , and the mounting hole 310 is used to fix the fan device 200 to the fixing plate 300 . superior.

In the present application, when the air duct housing 100 is enclosed by the first cover plate 110 and the second cover plate 120 , the fixing plate 300 can be fixedly disposed between the first cover plate 110 and the second cover plate 120 .

Specifically, the first cover plate 110 may be provided with a first screw hole 111 , the second cover plate 120 may be provided with a second screw hole 122 , the fixing plate may be provided with a third screw hole 320 , and the mounting nut 112 may pass through the first screw hole 111 . The screw holes 111 , the second screw holes 122 , and the third screw holes 320 fix the first cover plate 110 , the fixing plate 300 , and the second cover plate 120 into one body.

In the present application, by fixing the fan device 200 on the fixing plate 300 through the mounting holes 310, the fixing of the fan 210 in the air duct housing 100 can be strengthened, so that the fan 210 will not vibrate greatly due to loose installation, and further Prevent loud noise.

In the present application, the fixing plate 300 may also be provided with ventilation holes 330. Specifically, the fixing plate 300 may be provided with ventilation holes 330 corresponding to the air inlets 121 on the air duct housing 100 one-to-one. In this way, The low-temperature airflow can directly enter the air duct chamber through the air inlet 121 and the ventilation opening. Under the action of the fan 210, the low-temperature airflow is blown into the refrigerator compartment through the air outlet 114, and finally achieves cooling and ensures low noise. .

As can be seen from the above technical solutions, the present application at least has the following advantages and positive effects:

The refrigerator in the present application includes an air duct housing 100 and a fan device 200 arranged in an air duct chamber formed by the air duct housing 100 , and the fan device 200 is provided with a vibration damping component, and the fan device 200 is provided with a damping component. The vibration damping assembly can reduce the vibration transmission efficiency of the fan 210 , that is, can reduce the structure noise generated by the fan 210 transmitting the vibration to the air duct structure.

Specifically, when the air-cooled refrigerator is refrigerating, the large vibration generated by the fan 210 during the operation can be buffered by the vibration damping component, thereby preventing the vibration of the parts in contact with the fan 210, thereby reducing the refrigerator as a whole. noise.

In addition, the gas deflector 113 disposed inside the tunnel casing can guide the airflow, reduce eddy currents, and thereby reduce aerodynamic noise.

It should be noted that the inventor of the present application has obtained the following experimental results through experiments: in the refrigerator proposed in the present application, the novel air duct structure compared with the air duct structure in the prior art, the new air duct structure reduces the noise by 35.9dB The drop is 33.3dB, and the noise is improved by 2.7dB.

It can be seen that the transmission of the vibration of the fan to the air duct can be reduced by the above structure, the structural noise and aerodynamic noise of the air duct can be reduced, and the silent air duct can be realized.

In the foregoing description of the embodiments, the particular features, structures, materials or characteristics may be combined in any suitable manner in any one or more of the embodiments or examples.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered. within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

A refrigerator, characterized in that the refrigerator comprises:

an air duct housing, the air duct housing is provided with an air inlet and an air outlet, and an air duct chamber is formed in the air duct housing;

A fan device, the fan device is disposed in the air duct chamber, the fan device includes a fan and a vibration damping assembly, the fan is fixed on the vibration damping assembly, and the vibration damping assembly is fixed on the Inside the casing, the vibration damping assembly is used to reduce the vibration transmission efficiency of the fan.
The refrigerator according to claim 1, wherein the vibration damping assembly comprises a fan bracket and a buffer member disposed on the fan bracket, the fan bracket is used to support the fan, and the buffer member includes a body and a first buffer portion extending along the thickness direction of the body, the first buffer portion abuts on the air duct housing.
The refrigerator according to claim 2, wherein the body is cylindrical, and the first buffer portion is provided with elastic protrusions.
The refrigerator according to claim 2, wherein the buffer member is provided with a through hole along the thickness direction of the body, the through hole is provided with a second buffer portion, and the air duct housing is provided with a limiting column , the through hole is used to be sleeved on the limit post.
The refrigerator according to claim 4, characterized in that, the air duct housing is further provided with a limit piece, and a limit groove is formed between the limit piece and the limit column, and the buffer member limits the limit. located in the limiting groove.
The refrigerator according to claim 4, wherein the second buffer portion is provided with a plurality of spaced elastic ribs protruding from the through-hole wall toward the through-hole.
The refrigerator according to claim 2, characterized in that, the body of the buffer member is provided with an annular groove in the circumferential direction, the fan bracket includes a mounting portion, and a clip disposed on the outside of the mounting portion, and the mounting portion is provided with an annular groove. When installing the fan, the clamping feet are clamped in the annular groove.
The refrigerator according to claim 2, wherein the vibration damping assembly further comprises a buffer member pressure ring, the buffer member pressure ring is provided with a first buckle, and the air duct housing is provided with a second buckle Buckle, the buffer member pressing ring and the air duct housing are connected with the second clip through the first buckle, and the buffer member is pressed on the inner side of the air duct housing .
The refrigerator according to claim 1, characterized in that, a gas guide plate is further provided on the inner side of the air duct housing.
The refrigerator according to claim 1, wherein the refrigerator further comprises: a fixing plate, the fixing plate is fixedly arranged on the air duct chamber, the fixing plate is provided with a mounting hole, the mounting hole for fixing the fan device on the fixing plate.