CN216432222U

CN216432222U - Air exhaust assembly and refrigerator

Info

Publication number: CN216432222U
Application number: CN202122574588.XU
Authority: CN
Inventors: 刘飞; 唐义亭; 魏建; 孟祥琨; 江磊
Original assignee: TCL Home Appliances Hefei Co Ltd
Current assignee: TCL Home Appliances Hefei Co Ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-05-03
Anticipated expiration: 2031-10-25

Abstract

The application discloses subassembly and refrigerator bleed, the subassembly of bleeding includes shell, vacuum pump and amortization pad. The housing includes a plurality of mounting portions configured to mount the housing to an external carrier. The vacuum pump is installed inside the shell, and the amortization pad sets up between vacuum pump and shell, and the installation department has elasticity. The subassembly of bleeding in this application embodiment has set up the amortization pad between shell and vacuum pump, and the amortization pad can slow down the vibration of vacuum pump and absorb the noise that produces in the vacuum pump working process. Meanwhile, the elastic mounting part can change the hard collision between the vacuum pump and the external bearing part into elastic collision, so that the noise generated between the vacuum pump and the external bearing part is reduced. The subassembly of bleeding in this application embodiment utilizes the amortization pad with have elastic installation department, has reduced the noise of vacuum pump in the use.

Description

Air exhaust assembly and refrigerator

Technical Field

The application belongs to the refrigeration plant field, especially relates to an air exhaust subassembly and refrigerator.

Background

Vacuum preservation is used as a new technology in the field of refrigerators, and the principle is to form a sealed cavity in a low vacuum environment so as to reduce the physiological activity of microorganisms in the sealed cavity and finally achieve the effect of improving the preservation of food in the sealed cavity. The vacuum pump is generally used to pump out the gas in the sealed cavity to form a low vacuum environment, but the vacuum pump generates strong vibration during operation, which may affect the operation of the components in the refrigerator and cause large noise.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a refrigerator, can reduce the noise in the vacuum pump use.

In a first aspect, an embodiment of the present application provides a gas exhaust assembly, including:

a housing comprising a plurality of mounting portions configured to mount the housing to an external carrier, the mounting portions having elasticity;

a vacuum pump installed inside the housing;

and the silencing pad is arranged between the vacuum pump and the shell.

Optionally, the housing includes:

the vacuum pump is arranged in the main body part, the silencing pad is arranged between the main body part and the main body part, and the mounting part is connected with the main body part;

the external bearing piece is provided with a hook, the installation part is provided with a hanging hole, and the hook is arranged in the hanging hole so that a gap is formed between the main body part and the external bearing piece.

Optionally, the housing further comprises:

a stretching portion through which the mounting portion is connected with the main body portion, the stretching portion being elastically deformable to increase a gap between the main body portion and the external carrier.

Optionally, the number of the mounting portions is plural, the number of the stretching portions is also plural, each mounting portion is connected to one stretching portion, and the housing further includes:

and a reinforcing part having one side connected to the main body part and the other side connected to the plurality of stretching parts, the stretching parts being provided at intervals.

Optionally, the housing is made of an elastic material.

Optionally, the air exhaust assembly further comprises:

the trachea, the trachea with vacuum pump connection, still be provided with the via hole on the main part, the trachea wears to locate in the via hole.

In a second aspect, embodiments of the present application provide a refrigerator including an air extracting assembly as described above.

Optionally, the external carrier comprises:

the air duct cover plate is provided with a suspension hole, the hook is arranged at the edge of the suspension hole, and the installation part is hung on the hook so that the main body part is opposite to the suspension hole.

Optionally, the refrigerator further comprises a drawer assembly, the drawer assembly comprising:

a drawer;

the sealed box is provided with a sealed cavity, the drawer is accommodated in the sealed cavity, an air exhaust hole is formed in the sealed box, the air exhaust assembly is provided with an air pipe, and the air pipe penetrates through the air exhaust hole to exhaust air in the sealed cavity.

Optionally, the drawer assembly further comprises:

the first sealing piece is arranged between the drawer and the sealing box, the sealing box is provided with an opening, the opening is communicated with the sealing cavity, and the first sealing piece is arranged around the periphery of the opening.

In one embodiment of the present application, the pumping assembly includes a housing, a vacuum pump, and a sound damping pad. The housing includes a plurality of mounting portions configured to mount the housing to an external carrier. The vacuum pump is installed inside the shell, and the amortization pad sets up between vacuum pump and shell. Compare in the correlation technique, the vacuum pump direct mount has set up the amortization pad in the subassembly of bleeding in this application embodiment between shell and vacuum pump in the shell, and the amortization pad can slow down the vibration of vacuum pump and absorb the noise that produces in the vacuum pump working process. Meanwhile, the installation part has elasticity, and the installation part with elasticity can change the hard collision between the vacuum pump and the external bearing part into elastic collision, so that the noise generated between the vacuum pump and the external bearing part is reduced. The subassembly of bleeding in this application embodiment utilizes the amortization pad with have elastic installation department, has reduced the noise of vacuum pump in the use.

Drawings

The technical solutions and advantages of the present application will become apparent from the following detailed description of specific embodiments of the present application when taken in conjunction with the accompanying drawings.

Fig. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present application.

Fig. 2 is a partial structural schematic view of the refrigerator shown in fig. 1.

Fig. 3 is an exploded schematic view of a part of components of a refrigerator according to an embodiment of the present disclosure.

Figure 4 is an exploded view of a pumping assembly according to an embodiment of the present disclosure.

Fig. 5 is a schematic structural view of the housing in fig. 4.

Figure 6 is an assembled view of the pumping assembly of figure 4.

Fig. 7 is a partially enlarged view of a in fig. 3.

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. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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 application.

Vacuum preservation is a new technology in the field of refrigerators, and the principle of the technology is to form a sealed cavity in a low vacuum environment, so that the physiological activity of microorganisms in the sealed cavity is reduced, and the preservation effect of food in the sealed cavity is finally improved.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present disclosure. The refrigerator 100 may be a double-door refrigerator, or may be a single-door refrigerator or a triple-door refrigerator, which is not limited herein. The refrigerator 100 has an evaporative refrigeration system forming a closed loop, the refrigeration system including at least a compressor, a condenser, a throttle device, and an evaporator. Since such a refrigeration system is well known in the art, further description thereof is omitted. Of course, other forms of refrigeration systems may be used with the refrigerator 100, such as absorption refrigeration systems, thermoelectric refrigeration systems, and the like.

Referring to fig. 2, fig. 2 is a schematic view of a portion of the refrigerator shown in fig. 1. The refrigerator 100 includes a drawer assembly 5, and the drawer assembly 5 may be disposed at the bottom of the refrigerating chamber of the refrigerator 100, supported on the bottom wall of the refrigerating chamber. It will be appreciated that the drawer assembly 5 may also be provided in other storage compartments, such as a temperature-changing compartment whose temperature range is switchable between a refrigerated temperature zone and a frozen temperature zone. The drawer assembly 5 may be constructed independently of the cabinet and then assembled inside the refrigerator 100. Illustratively, the refrigerator 100 may include a connector 8 and a frame 1, wherein one end of the connector 8 is connected to the drawer assembly 5, and the other end of the connector 8 is engaged with the frame 1. The connecting element 8 may be disposed on a side of the sealed box 51 close to the frame 1 and extend out of the frame 1. Then, a foaming liquid is poured outside the frame 1, and the foaming liquid is solidified to form a foaming layer, so that the other end of the connecting member 8 is fixedly connected in the foaming layer.

Referring to fig. 3, fig. 3 is an exploded view of some components of a refrigerator according to an embodiment of the present disclosure. The refrigerator 100 further includes a pumping assembly 3, and the pumping assembly 3 can pump gas out of the drawer assembly 5. The drawer assembly 5 includes a sealed box 51, the sealed box 51 having a sealed cavity 512, the sealed cavity 512 being used for storing articles. For convenient storage and access by a user, the drawer assembly 5 further includes a drawer 52, the drawer 52 being received in the sealed cavity 512. In use, a user can place an object in the drawer 52, push the drawer 52 into the sealed box 51, and then the air-extracting assembly 3 starts to extract air from the sealed box 51, so as to make the object in a low-vacuum environment. Air in the sealed cavity 512 can be pumped out through the air pumping assembly 3, so that a low vacuum environment is formed in the sealed cavity 512. For example, the air pumping assembly 3 pumps 20% of the air in the sealed cavity 512, so that a low vacuum environment of 0.8 atm is formed in the sealed cavity 512, although the air pumping ratio may also be 15% or 25% of the air in the sealed cavity 512 according to different food storage requirements, and is not limited thereto.

Referring to fig. 4, fig. 4 is an exploded schematic view of an air pumping assembly according to an embodiment of the present disclosure. The pumping assembly 3 comprises a housing 37, a vacuum pump 31 and a sound-deadening pad 35. The housing 37 comprises a plurality of mounting portions 372, the mounting portions 372 being configured to mount the housing 37 to the external carrier 2. The vacuum pump 31 is mounted inside the housing 37, and the sound-deadening pad 35 is disposed between the vacuum pump 31 and the housing 37. The mounting portion 372 is configured to mount the housing 37 to the external carrier 2, the mounting portion 372 having elasticity.

It should be noted that, in the related art, the noise of the air exhaust assembly usually comes from two sources, the first is the vacuum pump itself, the noise generated by the parts inside the vacuum pump when the vacuum pump is in operation, and the noise generated by the collision friction between the air flow and the parts. The second is the noise generated by the impact between the vacuum pump, the housing and the external bearing. In the prior art, the vacuum pump is usually directly installed in the housing, the housing is usually made of plastic, and the noise reduction pump wrapped by the plastic housing is fixed on the external bearing piece through screws. It will be appreciated that the screw connection is a rigid connection and that vibrations of the vacuum pump can be transmitted to the external carrier through the rigid connection of the outer casing and the external carrier, thereby causing the external carrier to vibrate, causing collisions between the external carrier, the outer casing and the external carrier, and generating noise. Therefore, the vibration can be reduced from the source, and the noise can be reduced. The transmission of noise can also be blocked, which in turn brings about the effect of noise reduction.

The subassembly 3 of bleeding in this application embodiment has set up amortization pad 35 between shell 37 and vacuum pump 31, and amortization pad 35 can slow down the vibration of vacuum pump 31 itself, and amortization pad 35 can also absorb the noise that produces in the vacuum pump 31 working process, and the setting of amortization pad 35 still makes the relative motion between vacuum pump 31 and the shell 37 reduce, and then has reduced the collision of vacuum pump 31 and shell 37 to the noise abatement.

At the same time, the mounting portion 372 has elasticity, and the connection between the outer shell 37 and the external carrier 2 is an elastic connection, not a hard connection by screws. Compared to a stiff connection, an elastic connection has a lower transmission efficiency for vibrations than a stiff connection, i.e. the vibrations of the vacuum pump 31 are more difficult to transmit to the external carrier 2. The less the vibration of the external carrier 2, the less noise is generated. In addition, the elastic mounting portion 372 can change a hard collision between the vacuum pump 31 and the external carrier 2 into an elastic collision, thereby reducing noise generated between the vacuum pump 31 and the external carrier 2. The air exhaust assembly 3 in the embodiment of the present application reduces the noise of the vacuum pump 31 in the using process by using the silencing pad 35 and the mounting portion 372 having elasticity.

Referring to fig. 5, fig. 5 is a schematic structural diagram of the housing in fig. 4. The housing 37 includes a main body 371, the vacuum pump 31 is installed in the main body 371, the sound-absorbing pad 35 is installed between the main body 371 and the main body 371, and the installation part 372 is connected to the main body 371. Be provided with couple 23 on the external carrier 2, be provided with hanging hole 3721 on the installation department 372, couple 23 set up in hanging hole 3721 so that main part 371 with have the clearance between the external carrier 2. It should be noted that when the outer casing 37 is rigidly connected to the external carrier 2, the vibration of the vacuum pump 31 is transmitted to the external carrier 2 through the rigid connection, which causes the external carrier 2 to vibrate. If the body portion 371 does not have a gap with the external carrier 2, vibrations of the vacuum pump 31 may be transmitted through other contact points of the outer casing 37 and the external carrier 2 than the rigid connection. Therefore, the gap between the main body 371 and the external carrier 2 can reduce the transmission of vibration, thereby reducing noise.

It should be noted that the mounting portion 372 may be elastically deformed so that the main body portion 371 may be "kept away" from the external carrier 2, and in order to increase the distance between the main body portion 371 and the external carrier 2, the outer shell 37 may further be provided with a stretching portion 373. The mounting portion 372 is connected to the main body portion 371 through the stretching portion 373, and the stretching portion 373 can be elastically deformed to increase a gap between the main body portion 371 and the external carrier 2, thereby further reducing the impact and vibration transmission between the housing 37, the vacuum pump 31, and the external carrier 2.

It can be understood that, after the outer shell 37 and the external carrier 2 are mounted, the stretching portion 373 is in a deformed state, the vacuum pump 31 may vibrate during operation, and in addition, the vacuum pump 31, the body portion 371, and the sound absorbing cotton have too large mass, which may cause fatigue failure or fracture of the stretching portion 373 during operation. Therefore, the housing 37 may be provided with a reinforcing portion 374 to reinforce the connection of the stretching portion 373 and the body portion 371. The housing 37 may also be provided with a plurality of mounting portions 372 and a plurality of stretching portions 373, each of the mounting portions 372 is connected to one of the stretching portions 373, one side of the reinforcing portion 374 is connected to the main body portion 371, the other side of the reinforcing portion 374 is connected to a plurality of the stretching portions 373, and the stretching portions 373 are spaced apart from each other to reinforce the connection among the mounting portions 372, the stretching portions 373, and the main body portion 371. For example, two stretching portions 373 may be disposed at two ends of the main body 371, the two stretching portions 373 may be disposed at an interval, one side of the reinforcing portion 374 is connected to the main body 371, and the other side of the reinforcing portion 374 is connected to the two stretching portions 373. For ease of manufacture, the housing 37 may be integrally formed. The housing 37 may be made of an elastic material, for example, a plastic with better elasticity, such as silicone.

Referring to fig. 6 and 7, fig. 6 is an assembly view of the pumping assembly of fig. 4, and fig. 7 is a partial enlarged view of a in fig. 3. The external carrier 2 may include a duct cover 21 to form a duct inside the refrigerator 100. The vacuum pump 31 pumps out the air in the sealed cavity and then exhausts the air through the air duct. Wind channel apron 21 is provided with suspension hole 25, couple 23 set up in suspension hole 25 edge, installation department 372 hangs and establishes on the couple 23, so that main part 371 with suspension hole 25 is relative. Illustratively, the suspending hole 25 is rectangular, and four hooks 23 are provided on the periphery of the suspending hole 25. The main body 371 is a cylinder, and four mounting portions 372 are provided on the periphery of the main body 371. The housing 37 is hung on the air duct cover plate 21 through the four mounting portions 372, so that the main body portion 371, the silencing cotton and the vacuum pump 31 are in a similar suspended state, the transmission of vibration of the vacuum pump 31 and the collision between the housing 37 and the air duct cover plate 21 are reduced as much as possible, and further noise is reduced.

The air exhaust assembly 3 further comprises an air pipe 32, the air pipe 32 is connected with the vacuum pump 31, a via hole 3715 is further arranged on the main body part 371 of the shell 37, and the air pipe 32 penetrates through the via hole 3715. The sealing box 51 is provided with an air suction hole 514, and the air pipe 32 is arranged in the air suction hole 514 in a penetrating manner so as to suck air in the sealing cavity. The refrigerator 100 is further provided with a control unit for controlling the air extraction assembly 3 to vacuumize the drawer assembly 5, so as to realize automatic control of the vacuumizing of the drawer assembly 5. For convenience of wiring, the control unit may also be connected to the duct cover 21.

In order to improve the air extraction efficiency and the fresh-keeping effect, the drawer assembly 5 further comprises a first sealing member 54 disposed between the drawer 52 and the sealing box 51, the sealing box 51 is provided with an opening 513, the opening 513 is communicated with the sealing cavity, and the first sealing member 54 is disposed around the opening 513. It can be understood that the arrangement of the first sealing element 54 makes the sealing performance of the sealing cavity better, avoids air leakage of the sealing cavity, and can effectively improve the sealing efficiency and the fresh-keeping effect.

The inside of the sealed box 51 is in a low vacuum environment, and the inside and outside pressures of the sealed box 51 are different, which may cause the sealed box 51 to be deformed by pressure, thereby damaging the articles inside the sealed box 51. Therefore, the outer surface of the seal box 51 is provided with a plurality of reinforcing structures to improve the strength of the seal box 51 and prevent the deformation of the seal box 51 caused by the pressure difference between the inside and the outside of the seal box 51. For the convenience of manufacturing, the sealing case 51 is generally manufactured by dividing into an upper part and a lower part, and then the upper part and the lower part are integrally manufactured by ultrasonic welding after the divided parts are manufactured. It will be appreciated that the outer surface of the sealed box 51 has a reinforcing structure that is not suitable for holding items. Therefore, the refrigerator 100 further comprises a shelf 7, and the shelf 7 is connected with the sealing box 51, so that the surface of the sealing box 51 can be used for placing articles, and the beautifying function can be achieved.

For use, the user needs to depressurize the drawer assembly 5 to allow the sealed chamber 512 to be equalized with the external air pressure, and then pull the drawer 52 out of the sealed box 51. Drawer 52 is typically provided with a pressure relief vent 522. The pressure relief hole 522 is used to communicate the sealed cavity 512 with the external environment, so as to balance the sealed cavity 512 with the external air pressure. Drawer assembly 5 further includes a second seal 55, second seal 55 being conformable to drawer 52 to close pressure relief aperture 522. Before evacuation, second seal 55 seals pressure relief hole 522. When the article is to be removed, the second seal 55 is removed to equalize the air pressure inside and outside the chamber 512. Subsequently, the user can smoothly draw the drawer 52 out of the sealed box 51. The drawer 52 is usually provided with a handle 53, and a user can pull out the drawer 52 by holding the handle 53.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The air extraction assembly and the refrigerator provided by the embodiment of the application are introduced in detail, a specific example is applied in the description to explain the principle and the implementation of the application, and the description of the embodiment is only used for helping to understand the method and the core idea of the application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A gas evacuation assembly, comprising:

a vacuum pump installed inside the housing;

and the silencing pad is arranged between the vacuum pump and the shell.

2. The suction assembly of claim 1, wherein the housing comprises:

3. The suction assembly of claim 2, wherein the housing further comprises:

4. A pumping assembly according to claim 3, wherein the mounting portion is plural in number and the tension portion is plural in number, each mounting portion being connected to a tension portion, the housing further comprising:

5. A pumping assembly according to any of claims 2 to 4, wherein the housing is formed from a resilient material.

6. The gas evacuation assembly of any of claims 2 or 4, further comprising:

7. A refrigerator comprising a pumping assembly according to any of claims 2 to 6.

8. The refrigerator of claim 7, wherein the external carrier comprises:

9. The refrigerator according to claim 7 or 8, further comprising a drawer assembly, the drawer assembly comprising:

a drawer;

10. The refrigerator of claim 9, wherein the drawer assembly further comprises: