CN114215721A

CN114215721A - Noise reduction device and refrigerator

Info

Publication number: CN114215721A
Application number: CN202111583158.2A
Authority: CN
Inventors: 刘飞; 唐义亭; 魏建; 孟祥琨; 刘庆华; 谢进杰
Original assignee: TCL Home Appliances Hefei Co Ltd
Current assignee: TCL Home Appliances Hefei Co Ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-03-22
Anticipated expiration: 2041-12-22
Also published as: CN114215721B

Abstract

The application provides a noise reduction device and a refrigerator, wherein an accommodating space for accommodating a pump body is formed on the inner side of a first shell of the noise reduction device; the second shell is sleeved on the outer side of the first shell, at least part of the second shell is integrally connected with at least part of the first shell, a sealing space is formed between the second shell and the first shell, and the sealing space is used for blocking propagation of vibration generated by the pump body. Based on this, the noise reduction device of this application, the noise that pump body vibration produced is difficult for on installing component such as refrigerator from second casing conduction, and the noise reduction device can be very big the noise that the pump body vibration produced, and the noise reduction device has better noise reduction performance.

Description

Noise reduction device and refrigerator

Technical Field

The application relates to the field of noise reduction of refrigerators, in particular to a noise reduction device and a refrigerator.

Background

When the refrigerator realizes the refrigeration and fresh-keeping functions, the vacuum pump is often needed to realize the compression of gas and the control of gas pressure. The vacuum pump generates a large noise due to eccentric vibration when operating.

In the refrigerator noise reduction scheme in the related art, the periphery of the vacuum pump is often filled with noise reduction materials and then fixed on a refrigerator body. However, the noise reduction effect of this solution is not good, and the noise generated by the vacuum pump is still large.

Disclosure of Invention

The application provides a noise reduction device and a refrigerator, the noise reduction device can effectively reduce the noise generated by the vibration of a vacuum pump,

in a first aspect, the present application provides a noise reduction apparatus comprising:

the pump comprises a first shell, a second shell and a pump body, wherein an accommodating space for accommodating the pump body is formed on the inner side of the first shell; and

the second casing is sleeved outside the first casing, at least part of the second casing is connected with at least part of the first casing in an integrated forming mode, a sealing space is formed between the second casing and the first casing, and the sealing space is used for blocking propagation of vibration generated by the pump body.

In some embodiments, the second housing is provided with a communication hole which is communicated with the first housing and the pump body, and the communication hole is arranged at a distance from the sealed space.

In some embodiments, the first housing includes first and second oppositely disposed housing portions, the second housing including:

the third shell part is sleeved on the outer side of the first shell part and is integrally connected with the first shell part, and a first cavity is formed between the third shell part and the first shell part; and

the fourth shell portion is sleeved on the outer side of the second shell portion and is integrally connected with the second shell portion, a second cavity is formed between the fourth shell portion and the second shell portion, and the second cavity is communicated with the first cavity and forms the sealing space.

In some embodiments, the third housing portion includes a first end portion and the fourth housing portion includes a second end portion, the first end portion having a diameter greater than a diameter of the second end portion, the first end portion being sleeved outside the second end portion.

In some embodiments, a buckle is disposed on the second end portion, a clamping groove is disposed on the first end portion, and the buckle is limited in the clamping groove.

In some embodiments, the noise reducer further comprises a seal disposed at and sealing the junction of the third housing portion and the fourth housing portion.

In some embodiments, the noise reduction device further includes one or more spacers, each of the spacers is disposed between and integrally connected to the first casing and the second casing, and the one or more spacers are used to divide the sealed space into at least two sealed chambers.

In some embodiments, the noise reducer further comprises a sound absorbing member disposed within the sealed space.

In some embodiments, the first housing is made of an elastic material.

In a second aspect, the present application further provides a refrigerator, which includes a pump body and a noise reduction device, where the noise reduction device is as described above, and the pump body is disposed in an accommodating space formed by the noise reduction device.

The utility model provides a device and refrigerator of making an uproar falls, the inboard of the first casing of the device of making an uproar falls is formed with the accommodation space of the holding pump body, and the vibration of the pump body can be received to first casing, and the second casing cover is established in the outside of first casing and is connected with first casing integrated into one piece, can form the sealed space that sealing performance is more excellent between second casing and the first casing, and sealed space can block the propagation of the vibration that the pump body produced. Based on this, the device of making an uproar of falling of this application can solve the device of making an uproar of falling among the correlation technique and fall the not good problem of performance of making an uproar, the sealed space between the first casing of the device of making an uproar of falling this application and the second casing can block the propagation of pump body vibration, the second casing is difficult along with the pump body vibration, the noise that the pump body vibration produced is difficult to conduct to installation parts such as refrigerator from the second casing on, thereby the noise that the device of making an uproar of falling of this application can be very big reduction pump body vibration produces, the device of making an uproar of falling has the better performance of making an uproar of falling.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.

For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts in the following description.

Fig. 1 is a schematic structural diagram of a noise reduction apparatus according to an embodiment of the present disclosure.

Fig. 2 is a schematic cross-sectional view of the noise reducer shown in fig. 1 along a direction P1-P2.

Fig. 3 is a schematic cross-sectional view of the noise reducer shown in fig. 1 along a direction M1-M2.

Fig. 4 is a partial structural schematic view of the first housing and the second housing shown in fig. 1.

Fig. 5 is a schematic connection diagram of the noise reduction device and the pump body according to the embodiment of the present application.

Fig. 6 is an exploded view of the noise reducer and pump body of fig. 5.

Fig. 7 is an exploded view of the noise reducer and the pump body shown in fig. 5 in another direction.

Fig. 8 is a schematic structural diagram of a refrigerator according to an embodiment of the present application.

Detailed Description

The technical solution in the embodiment of the present application will be clearly and completely described below with reference to fig. 1 to 8 in the embodiment 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.

The embodiment of the application provides a noise reduction device 100, and the noise reduction device 100 can block the propagation of vibration generated by a pump body 200 such as a vacuum pump in the working process, so that the vibration noise generated by the pump body 200 is reduced, and the noise reduction of the pump body 200 is realized. Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a noise reducer 100 according to an embodiment of the present disclosure, fig. 2 is a schematic sectional view of the noise reducer 100 shown in fig. 1 along a direction P1 to P2, fig. 3 is a schematic sectional view of the noise reducer 100 shown in fig. 1 along a direction M1 to M2, and fig. 4 is a schematic partial structural diagram of the first housing 110 and the second housing 120 shown in fig. 1. The noise reducer 100 may include a first housing 110 and a second housing 120.

The first housing 110 may include at least an inner wall 111 and an outer wall 112, an inner side of the inner wall 111 (i.e., a side of the inner wall 111 away from the outer wall 112) may form an accommodating space 101, and a pump body 200 such as a vacuum pump may be accommodated in the accommodating space 101. The second shell 120 may be sleeved outside the outer wall 112 of the first shell 110 (i.e. the side of the outer wall 112 away from the inner wall 111), and the second shell 120 and the first shell 110 may form an inner shell structure and an outer shell structure, which may form a concentric ring structure. Wherein, a sealed space 102 may be formed between the second housing 120 and the outer wall 112 of the first housing 110, the sealed space 102 may block the transmission of the vibration generated by the pump body 200 from the inner wall 111 and the outer wall 112 of the first housing 110 to the second housing 120, and the sealed space 102 may block the transmission of the vibration of the pump body 200.

The first housing 110 and the second housing 120 may both be in an annular structure or a groove structure, and the first housing 110 and the second housing 120 may share a partial structure. For example, as shown in fig. 1 and fig. 2, at least a portion of the first housing 110 and at least a portion of the second housing 120 may share a bottom wall 121, at least a portion of the first housing 110 may include a sidewall structure extending from the bottom wall 121 along a first direction H1, at least a portion of the second housing 120 may also include a sidewall structure extending from the bottom wall 121 along a first direction H1, at least a portion of the first housing 110 and at least a portion of the second housing 120 may be integrally formed and connected, and the first housing 110 and the second housing 120 may form a housing structure that is nested inside and outside.

It is understood that, during the production process, at least a portion of the first housing 110 and at least a portion of the second housing 120 may be manufactured by an integral molding process, so that at least a portion of the first housing 110 and at least a portion of the second housing 120 may be formed as a single body, and the two housings do not need to be connected by screws, rivets, or the like. At this time, since at least a part of the first housing 110 and at least a part of the second housing 120 are integrally connected, the sealing performance of the sealed space 102 formed between the first housing 110 and the second housing 120 is better, and the propagation performance of the vibration of the pump body 200 blocked by the sealed space 102 is better.

When the pump body 200 such as a vacuum pump is disposed inside the inner wall 111 of the first housing 110, the pump body 200 such as a vacuum pump can be closely attached to the first housing 110, and the first housing 110 can receive the vibration of the pump body 200. However, since the sealed space 102 is formed between the first casing 110 and the second casing 120, the sealed space 102 is not communicated with the outside of the noise reduction device 100, the sealed space 102 may be a vacuum region, the vibration on the first casing 110 is not easily transmitted to the second casing 120, and the second casing 120 is not easily vibrated. When the noise reduction device 100 is mounted to the cabinet 300 of the refrigerator 10 through the second housing 120, the second housing 120 is less likely to transmit vibration to the cabinet 300 of the refrigerator 10, and the cabinet 300 of the refrigerator 10 is less likely to generate vibration.

In the noise reduction device 100 of the embodiment of the application, the inner side of the inner wall 111 of the first casing 110 is formed with the accommodating space 101 for accommodating the pump body 200, the first casing 110 can receive the vibration of the pump body 200, the second casing 120 is sleeved on the outer side of the outer wall 112 of the first casing 110 and is integrally connected with the first casing 110, the sealing space 102 with better sealing performance can be formed between the second casing 120 and the outer wall 112 of the first casing 110, the sealed space 102 can block the transmission of the vibration of the pump body 200, the vibration generated by the pump body 200 is not easily transmitted to the second housing 120 through the sealed space 102, the second housing 120 is not easily vibrated along with the pump body 200, the noise generated by the vibration of the pump body 200 is not easily transmitted to the installation components such as the refrigerator 10 from the second housing 120, therefore, the noise reduction device 100 of the embodiment of the present application can greatly reduce the noise generated by the vibration of the pump body 200, and the noise reduction device 100 has a better noise reduction performance.

In order to further improve the noise reduction performance of the noise reduction device 100, the first housing 110 may be made of an elastic material or a soft material, for example, the first housing 110 may be made of, but not limited to, a rubber material. When the pump body 200 such as a vacuum pump is disposed inside the inner wall 111 of the first housing 110, on the one hand, the elastic first housing 110 may absorb part of the vibration of the pump body 200 to reduce noise generated by the vibration of the pump body 200; on the other hand, the first housing 110 can elastically deform and tightly surround the pump body 200, so that there is no air gap between the inner wall 111 of the first housing 110 and the pump body 200, and noise generated by vibration of the pump body 200 is not transmitted in the air gap to generate additional noise, thereby further improving the noise reduction performance of the noise reduction device 100.

It is understood that when the first housing 110 and the second housing 120 are integrally formed and connected, the second housing 120 may be made of an elastic material or a soft material for simplifying the production process, and the elastic second housing 120 may absorb part of the vibration of the pump body 200 to reduce the noise generated by the vibration of the pump body 200. Of course, the second housing 120 may also be made of other hard or steel materials, and the specific material of the first housing 110 and the second housing 120 is not limited in the embodiment of the present application.

As shown in fig. 1, the second housing 120 may further include a mounting portion 122, and the second housing 120 may be mounted on other mounting components through the mounting portion 122, for example, the noise reducing device 100 may be mounted on the cabinet 300 of the refrigerator 10 through the mounting portion 122.

It is understood that when the second housing 120 is made of an elastic material, the noise reducer 100 may further include a reinforcement member 130 in order to enhance the stability of the connection between the mounting portion 122 and other mounting components. The reinforcing member 130 may be, but not limited to, a structure having a certain rigidity, such as a gasket, the reinforcing member 130 may increase the rigidity of the mounting portion 122, and a connecting member, such as an external screw, may be connected to other mounting components through the mounting portion 122 and the reinforcing member 130.

Referring to fig. 5 to 7, fig. 5 is a schematic connection diagram of a noise reduction device 100 and a pump body 200 according to an embodiment of the present disclosure, fig. 6 is a schematic diagram of an explosive structure of the noise reduction device 100 and the pump body 200 shown in fig. 5, and fig. 7 is a schematic diagram of an explosive structure of the noise reduction device 100 and the pump body 200 shown in fig. 5 in another direction. The second housing 120 may be provided with one or more communication holes 123 communicating with the pump body 200, the communication holes 123 may communicate with the inside of the inner wall 111 of the first housing 110 (the bottom wall of the first housing 110 may be provided with through holes corresponding to the communication holes 123 so as to communicate with each other), the communication holes 123 may be provided at intervals from the sealed space 102, and the communication holes 123 may communicate with the receiving space 101 provided inside the inner wall 111 of the first housing 110 so as to connect the communication holes 123 with the pump body 200 such as a vacuum pump.

It is understood that the pump body 200 such as a vacuum pump generally includes an air inlet and an air outlet, and the pump body 200 compresses air and controls air pressure by sucking and discharging air. The second housing 120 may be provided with one or a communication hole 123 corresponding to the gas inlet and the gas outlet, and the communication hole 123 may communicate with at least one of the gas inlet and the gas outlet, so that the vacuum pump may communicate with the external gas through the first housing 110 and the second housing 120.

It is understood that the communication hole 123 may also be disposed corresponding to a shaft, a piston rod, and the like of the pump body 200 such as a vacuum pump, and the shaft and the piston rod of the pump body 200 may extend out of the first housing 110 and the second housing 120 through the communication hole 123, and the first housing 110 and the second housing 120 do not affect the movement of the shaft and the piston rod of the pump body 200.

It is understood that the projection of the communication hole 123 on the bottom wall 121 of the second housing 120 is spaced from the projection of the sealed space 102 on the bottom wall 121 of the second housing 120, the communication hole 123 on the second housing 120 may be disposed corresponding to the receiving space 101 inside the inner wall 111 of the first housing 110, and the communication hole 123 may not be disposed corresponding to the sealed space 102, so that the communication hole 123 and the sealed space 102 may not communicate with each other, and the sealed space 102 may be in a completely sealed state.

According to the noise reduction device 100 of the embodiment of the application, the communication hole 123 communicated with the pump body 200 is arranged at an interval with the sealed space 102, the communication hole 123 does not affect the sealing performance of the sealed space 102, the sealing performance of the sealed space 102 is better, and therefore the noise reduction performance of the noise reduction device 100 is better.

Referring to fig. 5 to 7 again, the first housing 110 may include a first housing portion 113 and a second housing portion 114, and the second housing 120 may include a third housing portion 124 and a fourth housing portion 125.

The first housing portion 113 and the second housing portion 114 may be disposed opposite to each other, and end portions of the first housing portion 113 and the second housing portion 114 may abut against each other, and an inner wall of the first housing portion 113 and an inner wall of the second housing portion 114 may form an inner wall whole (i.e., the inner wall 111 of the first housing 110). The inner side of the inner wall of the first housing portion 113 and the inner side of the inner wall of the second housing portion 114 may form the accommodating space 101 of the foregoing embodiment, and the pump body 200 such as a vacuum pump may be disposed in the accommodating space 101 formed by the first housing portion 113 and the second housing portion 114. The outer wall of the first housing portion 113 and the outer wall of the second housing portion 114 may form an outer wall integral body (i.e., the outer wall 112 of the first housing 110).

The third housing portion 124 may be sleeved outside the first housing portion 113 and integrally connected to the first housing portion 113, the third housing portion 124 and the first housing portion 113 may form a first whole 103, a first cavity 1021 may be formed between the third housing portion 124 and the first housing portion 113, the first cavity 1021 may be a partial region of the accommodating space 101, and a region of the accommodating space 101 between the first housing portion 113 and the third housing portion 124 is the first cavity 1021. Similarly, the fourth housing portion 125 may be sleeved outside the second housing portion 114 and integrally connected with the second housing portion 114, the fourth housing portion 125 and the second housing portion 114 may form a second whole 104, a second cavity 1022 may be formed between the fourth housing portion 125 and the second housing portion 114, the second cavity 1022 may be a partial region of the accommodating space 101, and a region of the accommodating space 101 between the second housing portion 114 and the fourth housing portion 125 is the second cavity 1022. When the first body 103 is connected to the second body 104, the first chamber 1021 and the second chamber 1022 can communicate and form the sealed space 102 in the previous embodiment.

It is understood that, since the first housing portion 113 is integrally connected to the third housing portion 124, and the second housing portion 114 is integrally connected to the fourth housing portion 125, when the third housing portion 124 is detachably connected to the fourth housing portion 125, the first unit 103 formed by the third housing portion 124 and the first housing portion 113 is detachably connected to the second unit 104 formed by the fourth housing portion 125 and the second housing portion 114, and when the first unit 103 and the second unit 104 are detached, the pump body 200 such as a vacuum pump can be placed in the accommodating space 101 inside the first housing portion 113 and the second housing portion 114. When the first body 103 and the second body 104 are connected in a snap-fit manner, the pump body 200 can be limited in the accommodating space 101.

Of course, in other embodiments, the third housing portion 124 and the fourth housing portion 125 may also be non-detachably connected after the pump body 200 is assembled into the accommodating space 101, for example, the third housing portion 124 and the fourth housing portion 125 may be non-detachably connected by bonding, welding, or the like. The embodiment of the present application does not limit the specific connection mode between the third casing 124 and the fourth casing 125.

The first shell 110 and the second shell 120 of the embodiment of the application respectively comprise two shell parts to form a first whole 103 and a second whole 104, the pump body 200 such as a vacuum pump can be placed in the accommodating space 101 to be assembled with the noise reduction device 100 when the first whole 103 and the second whole 104 are not connected into a whole, the assembling difficulty of the pump body 200 is low, and the pump body 200 is more easily assembled in the accommodating space 101 inside the noise reduction device 100.

It should be noted that, in addition to the first housing 110 and the second housing 120 of the embodiment of the present application including two housing portions to facilitate assembly of the pump body 200, the pump body 200 may be assembled into the accommodating space 101 in other manners, for example, an opening may be disposed on the bottom wall 121 of the second housing 120, so that the pump body 200 is disposed in the accommodating space 101 through the opening. The present embodiment does not limit the specific assembly method of the pump body 200.

Referring again to fig. 5-7, the third housing part 124 may include a first end 1241, the fourth housing part 125 may include a second end 1251, and the diameter of the first end 1241 may be larger than that of the second end 1251, so that the first end 1241 may be sleeved outside the second end 1251 when the third housing part 124 and the fourth housing part 125 are assembled.

The first end 1241 may be an open end of the third housing part 124, and the diameter of the first end 1241 may be larger than the diameter of other areas of the third housing part 124, so that the first end 1241 may form a ledge structure of the third housing part 124. At this time, the length of third housing part 124 in first direction H1 may be greater than the length of first housing part 113 in first direction H1, and the difference in length between them may be the length of first end 1241 in first direction H1. The first direction H1 may be the length direction of the noise reducer 100. Second end 1251 may be an open end of fourth housing portion 125, second end 1251 may be disposed opposite and interconnected to first end 1241, other areas of fourth housing portion 125 may have a diameter similar or identical to the diameter of second end 1251, and fourth housing portion 125 may be cylindrical. At this time, the length of the fourth housing portion 125 in the first direction H1 may be approximately equal to the length of the second housing portion 114 in the first direction H1.

When the third housing part 124 and the fourth housing part 125 are connected to each other, the first housing part 113 and the second housing part 114 may be disposed to face each other and abut against each other, and the first end 1241 of the third housing part 124 may be sleeved outside the second end 1251 of the fourth housing part 125. When viewed from the outside, the first end portion 1241 may cover the second end portion 1251, and the first end portion 1241 also covers the first housing portion 113 and the second housing portion 114, so that the first end portion 1241 may cover a junction between the first chamber 1021 and the second chamber 1022, and the first end portion 1241 may improve the sealing performance of the sealed space 102 formed by the first chamber 1021 and the second chamber 1022.

The third housing part 124 of the embodiment of the present application is provided with the first end portion 1241 having a larger diameter, when the first end portion 1241 is sleeved on and covers the outside of the second end portion 1251, the first end portion 1241 may shield the connection portion between the third housing part 124 and the fourth housing part 125, and the first end portion 1241 may improve the sealing performance of the sealed space 102, so as to further improve the noise reduction performance of the noise reduction device 100.

Referring to fig. 5 to 7 again, a second end 1251 of the fourth housing portion 125 may be provided with a buckle 1252, a first end 1241 of the third housing portion 124 may be provided with a clamping slot 1242, when the third housing portion 124 is connected to the fourth housing portion 125, the buckle 1252 may be limited in the clamping slot 1242, and the third housing portion 124 and the fourth housing portion 125 may be clamped together.

It will be appreciated that when first end 1241 has a diameter greater than the diameter of second end 1251, catch 1252 on second end 1251 may protrude out of second end 1251 to mate with catch 1242 on first end 1241.

It will be appreciated that one or more snaps 1252 may be provided on second end 1251 and one or more slots 1242 may be provided on corresponding first end 1241. The number of the snaps 1252 and the card slots 1242 is not limited in the embodiment of the present application.

According to the embodiment of the application, the third housing part 124 and the fourth housing part 125 are clamped through the clamping groove 1242 and the buckle 1252, and the third housing part 124 and the fourth housing part 125 can be detachably connected, so that on one hand, the pump body 200 such as a vacuum pump is easily placed in the accommodating space 101, and the assembly difficulty of the pump body 200 is low; on the other hand, when the third housing portion 124 or the fourth housing portion 125 is damaged, it is also convenient to replace the damaged component.

Referring again to fig. 5-7, the noise reducer 100 may further include a seal 140. A seal 140 may be provided at the junction of the third housing portion 124 and the fourth housing portion 125, and the seal 140 may seal the junction. For example, the seal 140 may be disposed outside of the first end 1241 and the second end 1251. The seal 140 may prevent air from entering the sealed space 102 to affect the sealing performance of the sealed space 102.

It is understood that the sealing member 140 may be, but is not limited to, a cloth based sealing tape. In this case, the sealing member 140 may seal the third case portion 124 and the fourth case portion 125, or may further fix the third case portion 124 and the fourth case portion 125, so that the third case portion 124 and the fourth case portion 125 are connected more firmly. Of course, the sealing member 140 may also be other structures having properties, such as but not limited to a sealing tape, a sealing sponge, a sealing foam, etc., and the specific structure of the sealing member 140 is not limited in the embodiments of the present application.

The noise reducer 100 of the embodiment of the present application is provided with the sealing member 140, and the sealing member 140 may further improve the sealing performance of the sealed space 102, so that the noise reduction performance of the noise reducer 100 may be further improved.

Referring again to fig. 1-7, the noise reducer 100 may further include one or more spacers 150.

The partition 150 may be disposed between the outer wall 112 of the first housing 110 and the second housing 120, that is, the partition 150 may be disposed within the sealed space 102. The partition 150 may be integrally formed with the outer wall 112 of the first housing 110 and the second housing 120, and the partition 150 may divide the sealed space 102 into at least two sealed chambers (a first chamber 1021 or a second chamber 1022) spaced apart from each other. Of course, the spacers 150 may be directly or indirectly connected to the first and

second housings

110 and 120, respectively, without being integrally formed with the first and

second housings

110 and 120. The embodiment of the present application does not limit the specific structure of the separator 150.

It is understood that the partition 150 may be disposed in a flange structure between the outer wall 112 of the first casing 110 and the second casing 120, and a plurality of partitions 150 may be uniformly disposed in the sealed space 102 to divide the sealed space 102 into a plurality of closed chambers at equal intervals.

It is understood that when the first housing 110 and the second housing 120 respectively include two housing portions, one or more partitions 150 may be disposed between the first housing portion 113 and the third housing portion 124, so that the first chamber 1021 may be partitioned or equally spaced into a plurality of first sub-chambers 10211. One or more spacers 150 may be disposed between second housing portion 114 and fourth housing portion 125 such that second chamber 1022 may be partitioned or equally spaced into a plurality of second sub-chambers 10221. Each first sub-chamber 10211 may be directly opposite and in communication with one second sub-chamber 10221, such that a plurality of first sub-chambers 10211 and a plurality of second sub-chambers 10221 may form a plurality of closed chambers.

In the noise reduction device 100 of the embodiment of the application, the sealed space 102 is divided into a plurality of sealed chambers arranged at intervals by the partition 150, on one hand, each sealed chamber can block the transmission of the vibration of the pump body 200 to improve the noise reduction performance of the noise reduction device 100; on the other hand, the plurality of sealed chambers are spaced from each other, and when the sealing performance of a certain sealed chamber is poor, the sealing performance of other sealed chambers is not affected, and compared with the scheme of arranging the whole sealed space 102, the sealing performance of the plurality of sealed chambers is better. Also, one or more spacers 150 may also support the first and

second housings

110 and 120, and the spacers 150 may improve structural strength between the first and

second housings

110 and 120.

The noise reducer 100 according to the embodiment of the present disclosure may further include a sound absorbing member (not shown), which may be disposed in the sealed space 102.

The sound absorbing member may be, but is not limited to, an organic fiber sound absorbing material, an electrodeless foam sound absorbing material, a foam plastic sound absorbing material, or the like. Wherein, the organic fiber sound absorption material can but not limited to include antenna plant fiber; the non-polar fibrous sound absorbing material may include, but is not limited to, metal fibers, mineral fibers; the electrodeless foam sound absorbing material may include, but is not limited to, foam glass, foam metal; the foam sound absorbing material may include, but is not limited to, polyurethane sponge (PU sponge).

It is understood that the sound-absorbing member may be filled in a portion of the sealed space 102 between the first casing 110 and the second casing 120. The sound absorbing member may be completely filled in the sealed space 102, and in this case, the sound absorbing member may better absorb the vibration noise transmitted from the first housing 110.

The noise reduction device 100 of the embodiment of the present application includes the sound absorbing member disposed in the sealed space 102, and the sound absorbing member can absorb and slow down the vibration transmitted from the pump body 200 to the first housing 110, so as to further improve the noise reduction performance of the noise reduction device 100.

Referring to fig. 8 based on the noise reduction device 100, fig. 8 is a schematic structural diagram of a refrigerator 10 according to an embodiment of the present disclosure. The refrigerator 10 may include, but is not limited to, a cabinet 300, one or more storage compartments 400, the pump body 200 of the foregoing embodiment, and the noise reduction device 100.

The storage compartment 400 may include a refrigerating compartment 410 and a freezing compartment 420. The pump body 200 may be connected to the noise reducer 100 and disposed in the receiving space 101 inside the first housing 110 of the noise reducer 100, and the pump body 200 may perform a vacuum pumping operation to control the temperature and pressure of the refrigerating chamber 410 and the freezing chamber 420. Noise reducer 100 may block the transmission of the vibration of pump body 200 to casing 300, and noise reducer 100 may attenuate the noise generated by the operation of pump body 200.

It is understood that the above is only an exemplary example of the refrigerator 10 according to the embodiment of the present application, and the refrigerator 10 may further include, but is not limited to, a motor device, a drawer device, an ice crushing device, and the like, and the structures of these devices may be referred to the description of the related art and will not be described in detail herein.

It is to be understood that, in the description of the present application, terms such as "first", "second", and the like are used merely to distinguish similar objects and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

The noise reduction device and the refrigerator provided by the embodiment of the application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present 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 noise reducing device, comprising:

2. The noise reduction device according to claim 1, wherein a communication hole communicating with the first housing and the pump body is provided in the second housing, and the communication hole is provided at a distance from the sealed space.

3. The noise reducer of claim 1, wherein the first housing includes oppositely disposed first and second housing portions, the second housing including:

4. The noise reducer of claim 3, wherein the third housing portion includes a first end and the fourth housing portion includes a second end, the first end having a diameter greater than a diameter of the second end, the first end being positioned outside of the second end.

5. The noise reducer according to claim 4, wherein a buckle is disposed on the second end portion, a slot is disposed on the first end portion, and the buckle is limited by the slot.

6. The noise reducer of claim 3, further comprising a seal disposed at and sealing the junction of the third and fourth housing portions.

7. The noise reducer according to any one of claims 1 to 6, further comprising one or more spacers, each of which is disposed between and integrally connected to the first housing and the second housing, the one or more spacers being configured to divide the sealed space into at least two closed chambers.

8. The noise reducer according to any one of claims 1 to 6, further comprising a sound absorbing member provided in the sealed space.

9. The noise reducer according to any one of claims 1 to 6, wherein the first housing is made of an elastic material.

10. A refrigerator, comprising a pump body and a noise reducing device, wherein the noise reducing device is the noise reducing device according to any one of claims 1 to 9, and the pump body is disposed in a receiving space formed by the noise reducing device.