CN114412754B - Noise reduction device and refrigerator - Google Patents
Noise reduction device and refrigerator Download PDFInfo
- Publication number
- CN114412754B CN114412754B CN202111583145.5A CN202111583145A CN114412754B CN 114412754 B CN114412754 B CN 114412754B CN 202111583145 A CN202111583145 A CN 202111583145A CN 114412754 B CN114412754 B CN 114412754B
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- China
- Prior art keywords
- housing
- shell
- noise reduction
- reduction device
- pump body
- Prior art date
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- 238000004891 communication Methods 0.000 claims description 51
- 238000007789 sealing Methods 0.000 claims description 29
- 238000005192 partition Methods 0.000 claims description 13
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000007779 soft material Substances 0.000 claims description 2
- 238000000638 solvent extraction Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 8
- 239000011358 absorbing material Substances 0.000 description 7
- 238000002955 isolation Methods 0.000 description 7
- 239000000835 fiber Substances 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011494 foam glass Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0033—Pulsation and noise damping means with encapsulations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The application provides a noise reduction device and a refrigerator.A containing space for containing a pump body is formed on the inner side of a first shell of the noise reduction device; the second casing cover is established in the outside of first casing and is connected with first casing, is formed with sealed space between second casing and the first casing, and sealed space is used for stopping the propagation of the vibration that the pump body produced. Based on the noise reduction device, the noise generated by the vibration of the pump body is not easy to be transmitted to the mounting parts such as the refrigerator and the like from the second shell, the noise generated by the vibration of the pump body can be greatly reduced, and the noise reduction device has better noise reduction performance.
Description
Technical Field
The application relates to the field of refrigerator noise reduction, in particular to a noise reduction device and a refrigerator.
Background
When the refrigerator realizes the refrigeration and fresh-keeping functions, a vacuum pump is often required to be used for realizing the compression of gas and the control of air pressure. The vacuum pump generates loud noise due to eccentric vibration when in operation.
In the noise reduction scheme of the refrigerator in the related art, noise reduction materials are often filled at the periphery of a vacuum pump and then fixed on a refrigerator body. However, the noise reduction effect of the scheme is poor, and the noise generated by the vacuum pump is still large.
Disclosure of Invention
The application provides a noise reduction device and a refrigerator, which can effectively reduce noise generated by vibration of a vacuum pump,
In a first aspect, the present application provides a noise reduction device comprising:
the inner side of the first shell is provided with an accommodating space for accommodating the pump body; and
The second shell is sleeved on the outer side of the first shell and is connected with the first shell, a sealing space is formed between the second shell and the first shell, and the sealing space is used for blocking transmission of vibration generated by the pump body.
In some embodiments, the first housing is provided with a first communication hole, the second housing is provided with a second communication hole, the first communication hole and the second communication hole are communicated with the pump body, and the first communication hole and the second communication hole are arranged at intervals with the sealing space.
In some embodiments, the first housing includes oppositely disposed first and second housing portions, the second housing including:
The third shell part is sleeved outside the first shell part and 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 part is sleeved on the outer side of the second shell part and is connected with the second shell part, a second cavity is formed between the fourth shell part and the second shell part, 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 of the second end portion.
In some embodiments, the second end portion is provided with a buckle, the first end portion is provided with a clamping groove, and the buckle is limited to the clamping groove.
In some embodiments, the noise reduction device further comprises a sound absorbing member disposed within the sealed space.
In some embodiments, one or more partitions are provided on the outside of the first housing, each of the partitions being connected to the second housing, one or more of the partitions being for partitioning the sealed space into at least two closed chambers.
In some embodiments, the first housing is provided with a first mounting portion, the second housing is correspondingly provided with a second mounting portion, and the external connection member is used for fixing the first housing and the second housing through the first mounting portion and the second mounting portion.
In some embodiments, the first housing is an elastic material.
In a second aspect, the application further provides a refrigerator, which comprises a pump body and a noise reduction device, wherein the noise reduction device is the noise reduction device, and the pump body is arranged in a containing space formed by the noise reduction device.
According to the noise reduction device, the accommodating space for accommodating the pump body is formed in the inner side of the first shell, the first shell can receive vibration of the pump body, the second shell is sleeved on the outer side of the first shell, a sealing space is formed between the second shell and the first shell, and the sealing space can prevent propagation of vibration generated by the pump body. Based on the above, the noise reduction device can solve the problem of poor noise reduction performance of the noise reduction device in the related art, the sealing space between the first shell and the second shell of the noise reduction device can block the propagation of pump body vibration, the second shell is not easy to vibrate along with the pump body, and noise generated by the pump body vibration is not easy to be conducted from the second shell to mounting parts such as a refrigerator, so that the noise reduction device can greatly reduce noise generated by the pump body vibration, and has better noise reduction performance.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the figures in the following description are only some embodiments of the application, from which other figures can be obtained without inventive effort for a person skilled in the art.
For a more complete understanding of the present application and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts throughout the following description.
Fig. 1 is a schematic structural diagram of a noise reduction device according to an embodiment of the present application.
Fig. 2 is a schematic cross-sectional view of the noise reducer shown in fig. 1 along the direction P1 to P2.
Fig. 3 is a schematic cross-sectional view of the noise reducer shown in fig. 1 along the directions M1 to M2.
Fig. 4 is a partial structural schematic view of the first and second cases shown in fig. 1.
Fig. 5 is a schematic connection diagram of a noise reducer and a pump body according to an embodiment of the present application.
Fig. 6 is a schematic diagram of an explosion structure of the noise reducer and the pump body shown in fig. 5.
Fig. 7 is a schematic structural view of a refrigerator according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to fig. 1 to 7 in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the 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, thereby reducing the vibration noise generated by the pump body 200 and realizing the noise reduction of the pump body 200. Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a noise reduction device 100 according to an embodiment of the application, fig. 2 is a schematic sectional view of the noise reduction device 100 shown in fig. 1 along the direction P1 to P2, fig. 3 is a schematic sectional view of the noise reduction device 100 shown in fig. 1 along the 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 reduction device 100 may include a first housing 110 and a second housing 120.
The first housing 110 may include a first bottom wall 111 and a first side wall 112, and the first side wall 112 may be connected to the first bottom wall 111 and disposed to extend toward a first direction H1 away from the first bottom wall 111. The inner side of the first side wall 112 and the inner side of the first bottom wall 111 of the first housing 110 may form a receiving space 101, and a pump body 200 such as a vacuum pump may be received in the receiving space 101.
The second housing 120 may be sleeved outside the first housing 110. For example, the second housing 120 may include a second bottom wall 121 and a second side wall 122, and the second side wall 122 may be connected to the second bottom wall 121 and disposed to extend toward the first direction H1 away from the second bottom wall 121. The second side wall 122 and the second bottom wall 121 may also form a receiving groove structure, and the first housing 110 and the pump body 200 may be disposed inside the receiving groove structure such that the second side wall 122 may be located outside the first side wall 112 and the second bottom wall 121 may be located outside the first bottom wall 111. The second housing 120 may form an inner and outer nested housing structure with the first housing 110, which may form a concentric ring structure.
It will be appreciated that during the manufacturing process, at least a portion of the first housing 110 and at least a portion of the second housing 120 may be manufactured using an integral molding process, such 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 piece, which may be formed without additional connection via screws, rivets, or the like.
It will be appreciated that in other embodiments, the first housing 110 and the second housing 120 may be two separate components, and the first housing 110 and the second housing 120 may be directly or indirectly coupled together. For example, the diameters of the first housing 110 and the second housing 120 may be designed so that the second housing 120 may just be clamped to the outer side of the first housing 110, and the first housing 110 and the second housing 120 may be clamped. For another example, the first housing 110 and the second housing 120 may be fixed to the external mounting member by a connecting member such as a screw, so that the first housing 110 and the second housing 120 may be fixedly connected to each other, or the noise reduction device 100 may be connected to an external object.
When the first shell 110 and the second shell 120 in the embodiment of the application are two independent components, the first shell 110 and the second shell 120 can be produced and prepared independently, so that the preparation process flow of each shell is simpler; meanwhile, when the first housing 110 or the second housing 120 is damaged, only the corresponding parts need to be replaced without replacing the entire noise reduction device 100, and the maintenance cost of the noise reduction device 100 can be saved.
As shown in fig. 2 to 4, a sealed space 102 may be formed between the second housing 120 and the first housing 110, the sealed space 102 may block transmission of vibration generated by the pump body 200 from the first housing 110 to the second housing 120, and the sealed space 102 may block transmission of vibration of the pump body 200.
When the pump body 200 such as a vacuum pump is disposed in the accommodating space 101 inside the first housing 110, the pump body 200 such as a vacuum pump may be closely attached to the first housing 110, and the first housing 110 may receive the vibration of the pump body 200. However, since the sealed space 102 is formed between the first housing 110 and the second housing 120, the sealed space 102 may be a vacuum area, and vibration on the first housing 110 is not easily transmitted to the second housing 120, and vibration is not easily generated in the second housing 120. 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 not easy to transmit vibration to the cabinet 300 of the refrigerator 10, and the cabinet 300 of the refrigerator 10 is not easy to vibrate.
According to the noise reduction device 100 provided by the embodiment of the application, the accommodating space 101 for accommodating the pump body 200 is formed at the inner side of the first shell 110, the first shell 110 can receive the vibration of the pump body 200, the second shell 120 is sleeved at the outer side of the first shell 110 and is directly or indirectly connected with the first shell 110, the sealing space 102 can be formed between the second shell 120 and the first shell 110, the sealing space 102 can prevent the transmission of the vibration of the pump body 200, the vibration generated by the pump body 200 is not easy to transmit to the second shell 120 through the sealing space 102, the second shell 120 is not easy to vibrate along with the pump body 200, and the noise generated by the vibration of the pump body 200 is not easy to be transmitted to mounting components such as the refrigerator 10 from the second shell 120, so that the noise reduction device 100 provided by the embodiment of the application can greatly reduce the noise generated by the vibration of the pump body 200, and the noise reduction device 100 has 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 first housing 110, on one hand, the elastic first housing 110 can absorb part of the vibration of the pump body 200 to reduce the noise generated by the vibration of the pump body 200; on the other hand, the first housing 110 may be elastically deformed and tightly wrap the pump body 200, so that an air gap does not exist between 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 additionally generate noise, thereby further improving noise reduction performance of the noise reduction device 100.
It is understood that the second housing 120 may be made of a hard or rigid material, for example, the second housing 120 may be made of, but not limited to, a hard plastic material. When the second housing 120 is sleeved on the outer side of the first housing 110, the second housing 120 can protect the soft first housing 110, and the second housing 120 can improve the structural strength of the noise reduction device 100. The noise reduction device 100 may be fixed to other mounting members by providing a mounting portion on the second housing 120.
With continued reference to fig. 1 to 4, the first housing 110 may be provided with a first mounting portion 113, and the second housing 120 may be provided with a second mounting portion 123, where the second mounting portion 123 may be disposed corresponding to the first mounting portion 113, so that the external connector may fix the first housing 110 and the second housing 120 with the external mounting component through the first mounting portion 113 and the second mounting portion 123 at the same time.
For example, the external connection screw may pass through the through holes of the first and second mounting parts 113 and 123 at the same time, and fix the first and second housings 110 and 120 at the same time to the cabinet 300 of the refrigerator 10.
It can be appreciated that when the first housing 110 is made of an elastic material and the second housing 120 is made of a rigid material, the second mounting portion 123 of the second housing 120 may also serve as a reinforcement member for the first mounting portion 113, and the second mounting portion 123 may enhance the structural strength of the first mounting portion 113, so that the external connection member may fix the first housing 110 through the first mounting portion 113.
Referring to fig. 3 and 4 again, the first housing 110 may have one or more first communication holes 114, and the second housing 120 may have one or more second communication holes 124.
The first communication hole 114 may communicate with the pump body 200, the second communication hole 124 may communicate with the first communication hole 114, and the second communication hole 124 may communicate with the pump body 200 through the first communication hole 114. The first communication hole 114 and the second communication hole 124 may also communicate with the accommodation space 101 inside the first housing 110. However, the first communication hole 114 and the second communication hole 124 may be provided at a distance from the sealed space 102, and neither the first communication hole 114 nor the second communication hole 124 communicates with the sealed space 102.
It will be appreciated that the pump body 200, such as a vacuum pump, generally includes an air inlet and an air outlet, and that the pump body 200 allows for compression of the gas and control of the air pressure by drawing and exhausting the gas. One or more first communication holes 114 and one or more second communication holes 124 may be provided in the first and second housings 110 and 120 corresponding to the gas inlet and outlet, and the first and second communication holes 114 and 124 may communicate with at least one of the gas inlet and outlet so that the vacuum pump may communicate with the outside air through the first and second housings 110 and 120.
It is to be understood that the first communication hole 114 and the second communication hole 124 may be provided corresponding to a shaft body, a piston rod, etc. of the pump body 200 such as a vacuum pump, etc., and the shaft body, the piston rod, etc. of the pump body 200 may extend out of the first housing 110 and the second housing 120 through the first communication hole 114 and the second communication hole 124, and the movement of the shaft body, the piston rod, etc. of the pump body 200 may not be affected by the first housing 110 and the second housing 120.
It is understood that the number, shape, etc. of the first communication holes 114 and the second communication holes 124 may be designed according to actual situations. For example, the size of the second communication holes 124 in fig. 4 is large so that one second communication hole 124 may be provided corresponding to two first communication holes 114. The specific structures of the first communication hole 114 and the second communication hole 124 are not limited in the embodiment of the present application.
It is understood that the projection of the first communication hole 114 and the second communication hole 124 on the second bottom wall 121 of the second housing 120 and the projection of the sealed space 102 on the second bottom wall 121 of the second housing 120 may be spaced apart by the first communication hole 114 and the second communication hole 124 and may not be disposed corresponding to the sealed space 102 (for example, the first communication hole 114 and the second communication hole 124 may be disposed corresponding to the accommodating space 101 inside the first housing 110), the first communication hole 114, the second communication hole 124 and the sealed space 102 may not be in communication with each other, and the sealed space 102 may be in a completely sealed state.
In the noise reduction device 100 of the embodiment of the application, the first communication hole 114 and the second communication hole 124 which are communicated with the pump body 200 are arranged at intervals with the sealing space 102, the sealing performance of the sealing space 102 is better, and thus the noise reduction performance of the noise reduction device 100 is better.
Referring to fig. 5 and fig. 6, fig. 5 is a schematic connection diagram of the noise reducer 100 and the pump body 200 according to an embodiment of the application, and fig. 6 is a schematic explosion structure diagram of the noise reducer 100 and the pump body 200 shown in fig. 5. The first housing 110 may include a first housing portion 115 and a second housing portion 116, and the second housing 120 may include a third housing portion 125 and a fourth housing portion 126.
The first housing portion 115 and the second housing portion 116 may be disposed opposite to each other, and end portions of the two may abut against each other, and an inner wall of the first housing portion 115 and an inner wall of the second housing portion 116 may form an integral body (i.e., an inner wall of the first housing 110). The inner side of the inner wall of the first housing portion 115 and the inner side of the inner wall of the second housing portion 116 may form the accommodation space 101 of the foregoing embodiment, and the pump body 200 such as a vacuum pump may be disposed in the accommodation space 101 formed by the first housing portion 115 and the second housing portion 116. The outer wall of the first housing portion 115 and the outer wall of the second housing portion 116 may form an outer wall integral (i.e., the outer wall of the first housing 110).
The third housing portion 125 may be sleeved on the outer side of the first housing portion 115 and directly, indirectly or integrally formed with the first housing portion 115, the third housing portion 125 may be integrally formed with the first housing portion 115, or the third housing portion 125 may be two separate components from the first housing portion 115. The third housing portion 125 and the first housing portion 115 may form a first whole 103. A first chamber 1021 may be formed between the third housing portion 125 and the first housing portion 115, and the first chamber 1021 may be a partial area of the accommodating space 101, and an area of the accommodating space 101 between the first housing portion 115 and the third housing portion 125 is the first chamber 1021.
Similarly, the fourth housing portion 126 may be sleeved on the outer side of the second housing portion 116 and directly, indirectly or integrally connected with the second housing portion 116, the fourth housing portion 126 may be integrally formed with the second housing portion 116, and the fourth housing portion 126 may be two independent components with the second housing portion 116. The fourth housing portion 126 and the second housing portion 116 may form a second integral body 104, and a second chamber 1022 may be formed between the fourth housing portion 126 and the second housing portion 116, where the second chamber 1022 may be a partial area of the accommodating space 101, and an area of the accommodating space 101 between the second housing portion 116 and the fourth housing portion 126 is the second chamber 1022. When the first body 103 is connected with the second body 104, the first chamber 1021 may communicate with the second chamber 1022 and form the sealed space 102 in the foregoing embodiment.
It will be appreciated that, since the first housing portion 115 is directly, indirectly or integrally connected with the third housing portion 125, and the second housing portion 116 is directly, indirectly or integrally connected with the fourth housing portion 126, when the third housing portion 125 is detachably connected with the fourth housing portion 126, the first unit 103 formed by the third housing portion 125 and the first housing portion 115 may be detachably connected with the second unit 104 formed by the fourth housing portion 126 and the second housing portion 116, and when the first unit 103 and the second unit 104 are detached and separated, the pump body 200 such as a vacuum pump may be placed in the accommodation space 101 inside the first housing portion 115 and the second housing portion 116. When the first unit 103 and the second unit 104 are fastened together, the pump body 200 can be limited in the accommodating space 101.
Of course, in other embodiments, the third housing portion 125 and the fourth housing portion 126 may be connected in a non-detachable manner after the pump body 200 is assembled to the accommodating space 101, for example, the third housing portion 125 and the fourth housing portion 126 may be connected in a non-detachable manner by bonding, welding, or the like. The embodiment of the present application is not limited to a specific connection manner of the third housing portion 125 and the fourth housing portion 126.
The first housing 110 and the second housing 120 in the embodiment of the application respectively include two housing parts to form the first whole 103 and the second whole 104, and 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, so that the assembly difficulty of the pump body 200 is low, and the pump body 200 is easier to be assembled into 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 may include two housing portions to facilitate the assembly of the pump body 200, the pump body 200 may be assembled into the accommodating space 101 in other manners, for example, the second bottom wall 121 of the second housing 120 and the first bottom wall 111 of the first housing 110 may be provided with openings so that the pump body 200 is disposed in the accommodating space 101 through the openings. The specific assembly mode of the pump body 200 is not limited in the embodiment of the present application.
Referring again to fig. 5 and 6, the third housing portion 125 may include a first end portion 1251, the fourth housing portion 126 may include a second end portion 1261, and the first end portion 1251 may have a larger diameter than the second end portion 1261, such that the first end portion 1251 may be sleeved outside the second end portion 1261 when the third housing portion 125 is assembled with the fourth housing portion 126.
The first end 1251 may be an open end of the third housing portion 125, and the diameter of the first end 1251 may be greater than the diameter of other areas of the third housing portion 125, such that the first end 1251 may form a ledge structure of the third housing portion 125. At this time, the length of the third housing portion 125 in the first direction H1 may be greater than the length of the first housing portion 115 in the first direction H1, and the difference in length may be the length of the first end portion 1251 in the first direction H1. The first direction H1 may be a longitudinal direction of the noise reducer 100.
The second end portion 1261 may be an open end of the fourth housing portion 126, the second end portion 1261 may be disposed opposite the first end portion 1251 and interconnected, the diameter of other areas of the fourth housing portion 126 may be approximately or the same as the diameter of the second end portion 1261, and the fourth housing portion 126 may be cylindrical in shape. At this time, the length of the fourth housing portion 126 in the first direction H1 may be approximately equal to the length of the second housing portion 116 in the first direction H1.
When the third housing portion 125 and the fourth housing portion 126 are connected to each other, the first housing portion 115 and the second housing portion 116 may be disposed opposite to and abut against each other, and the first end portion 1251 of the third housing portion 125 may be sleeved outside the second end portion 1261 of the fourth housing portion 126. From the outside, the first end 1251 may cover the second end 1261, and the first end 1251 may also cover the first housing part 115 and the second housing part 116, so that the first end 1251 may cover the junction of the first chamber 1021 and the second chamber 1022, and the first end 1251 may improve the sealing performance of the sealed space 102 formed by the first chamber 1021 and the second chamber 1022.
In the embodiment of the present application, the third housing portion 125 is provided with the first end portion 1251 with a larger diameter, when the first end portion 1251 is sleeved and covered on the outer side of the second end portion 1261, the first end portion 1251 can shield the connection portion between the third housing portion 125 and the fourth housing portion 126, and the first end portion 1251 can improve the sealing performance of the sealing space 102, so that the noise reduction performance of the noise reduction device 100 can be further improved.
Referring to fig. 5 and 6 again, a buckle 1262 may be provided on the second end 1261 of the fourth housing portion 126, a slot 1252 may be provided on the first end 1251 of the third housing portion 125, when the third housing portion 125 is connected with the fourth housing portion 126, the buckle 1262 may be limited in the slot 1252, and the third housing portion 125 and the fourth housing portion 126 may be clamped.
It will be appreciated that when the diameter of the first end 1251 is greater than the diameter of the second end 1261, the catch 1262 on the second end 1261 may protrude from the second end 1261 to mate with the catch 1252 on the first end 1251.
It is appreciated that one or more snaps 1262 may be provided on the second end 1261 and one or more detents 1252 may be provided on the corresponding first end 1251. The number of snaps 1262 and detents 1252 is not limited by the embodiments of the application.
According to the embodiment of the application, the third shell part 125 and the fourth shell part 126 are clamped through the clamping groove 1252 and the clamping buckle 1262, and the third shell part 125 and the fourth shell part 126 can be detachably connected, so that on one hand, the pump body 200 such as a vacuum pump is easy to be placed into the accommodating space 101, and the assembly difficulty of the pump body 200 is low; on the other hand, when the third housing portion 125 or the fourth housing portion 126 is damaged, replacement of the damaged parts is also facilitated.
The noise reduction device 100 according to the embodiment of the present application may further include a sealing member (not shown). A seal may be provided at the junction of the third housing portion 125 and the fourth housing portion 126, which may seal. For example, seals may be provided outside of the first end 1251 and the second end 1261. The seal may prevent air from entering the sealed space 102 to affect the sealing performance of the sealed space 102.
It is understood that the seal may be, but is not limited to, a cloth-based sealing tape. In this case, the sealing material may seal the third housing portion 125 and the fourth housing portion 126, or may further fix the third housing portion 125 and the fourth housing portion 126, and the third housing portion 125 and the fourth housing portion 126 may be connected more firmly.
Of course, the seal may also be other structures with performance, such as, but not limited to, sealing belts, sealing sponges, etc., and the embodiments of the present application are not limited to the specific structure of the seal.
The noise reduction device 100 of the embodiment of the present application is provided with a sealing member, which can further improve the sealing performance of the sealing space 102, so that the noise reduction performance of the noise reduction device 100 can be further improved.
Referring again to fig. 1 to 6, one or more spacers 117 may be further disposed on the outer side of the first housing 110.
One end of the isolation portion 117 may be connected to the first bottom wall 111, the other end may be disposed away from the first bottom wall 111 toward the first direction H1, the isolation portion 117 may be disposed between the first housing 110 and the second housing 120, and the isolation portion 117 may be disposed in the sealed space 102. The isolation portion 117 may be integrally connected with the outer wall of the first housing 110, or the isolation portion 117 may abut against the second housing 120, and the isolation portion 117 may partition the sealed space 102 into at least two sealed chambers (e.g., the first chamber 1021 or the second chamber 1022) that are spaced apart from each other.
It is understood that the partition 117 may be one or more flange structures disposed outside the first housing 110, and the plurality of partitions 117 may be uniformly disposed in the sealed space 102 to divide the sealed space 102 into a plurality of sealed chambers with equal intervals.
It will be appreciated that when the first housing 110 and the second housing 120 each comprise two housing parts, one or more partitions 117 may be provided on the outside of the first housing part 115 so that the first chamber 1021 may be divided or equally spaced into a plurality of first sub-chambers 10211. One or more partitions 117 may be provided on the outside of the second housing part 116 so that the second chamber 1022 may be divided or equally spaced into a plurality of second sub-chambers 10221. Each first sub-chamber 10211 may be disposed opposite to and in communication with one second sub-chamber 10221 such that the plurality of first sub-chambers 10211 and the plurality of second sub-chambers 10221 may form a plurality of closed chambers.
In the noise reduction device 100 of the embodiment of the present application, the sealed space 102 is divided into a plurality of sealed chambers arranged at intervals by the isolation portion 117, on one hand, each sealed chamber can block the propagation of the vibration of the pump body 200 so as to improve the noise reduction performance of the noise reduction device 100; on the other hand, the sealing performance of one sealed chamber is not affected when the sealing performance of the other sealed chambers is poor, and compared with the scheme of arranging the whole sealed space 102, the sealing performance of the plurality of sealed chambers is better. Also, the one or more partitions 117 may also support the first and second housings 110 and 120, and the partitions 117 may improve structural strength between the first and second housings 110 and 120.
The noise reduction device 100 according to the embodiment of the present application 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 not limited to, a structure of an organic fiber sound absorbing material, an electrodeless foam sound absorbing material, a foam sound absorbing material, or the like. Wherein the organic fiber sound absorbing material may include, but is not limited to, antenna plant fibers; the electrodeless fiber 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 and foam metal; the foamed 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 housing 110 and the second housing 120. The sound absorbing member may be completely filled in the sealed space 102, and at this time, the sound absorbing member may better absorb the vibration noise conducted by the first housing 110.
The noise reduction device 100 according to the embodiment of the present application includes a sound absorbing member disposed in the sealed space 102, and the sound absorbing member can absorb and slow down the vibration transferred from the pump body 200 to the first housing 110, thereby further improving the noise reduction performance of the noise reduction device 100.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a refrigerator 10 according to an embodiment of the present application. 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 accommodating space 101 inside the first housing 110 of the noise reducer 100, and the pump body 200 may perform a vacuum operation to control the temperature and pressure of the refrigerating chamber 410 and the freezing chamber 420. The noise reduction device 100 can block the vibration of the pump body 200 from being transmitted to the box 300, and the noise reduction device 100 can reduce the noise generated by the operation of the pump body 200.
It should be appreciated that the above is merely an exemplary example of the refrigerator 10 according to the embodiment of the present application, and the refrigerator 10 may also include, but is not limited to, a motor device, a drawer device, an ice crushing device, etc., and the structure of these devices may be referred to the description of the related art and will not be described in detail herein.
It should be understood that in the description of the present application, terms such as "first," "second," and the like are used merely to distinguish between similar objects and are not to be construed as indicating or implying a 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. Specific examples are set forth herein to illustrate the principles and embodiments of the present application and are provided to aid in the understanding of the present application. Meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.
Claims (8)
1. A noise reduction device, comprising:
the first shell is made of elastic materials or soft materials and is used for elastically deforming and tightly wrapping the pump body, so that an air gap does not exist between the first shell and the pump body; and
A second shell sleeved on the outer side of the first shell and connected with the first shell, a sealing space is formed between the second shell and the first shell and used for blocking the transmission of vibration generated by the pump body, the second shell is made of hard or rigid materials,
The first shell is provided with a first installation part, the second shell is correspondingly provided with a second installation part, and the external connecting piece is used for fixing the first shell and the second shell through the first installation part and the second installation part.
2. The noise reduction device according to claim 1, wherein a first communication hole is provided in the first housing, a second communication hole is provided in the second housing, the first communication hole and the second communication hole are communicated with the pump body, and the first communication hole and the second communication hole are disposed at a spacing from the sealed space.
3. The noise reduction device of claim 1, wherein the first housing comprises oppositely disposed first and second housing portions, the second housing comprising:
The third shell part is sleeved outside the first shell part and 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 part is sleeved on the outer side of the second shell part and is connected with the second shell part, a second cavity is formed between the fourth shell part and the second shell part, and the second cavity is communicated with the first cavity and forms the sealing space.
4. A noise reducer according to claim 3, wherein the third housing part comprises a first end portion and the fourth housing part comprises a second end portion, the first end portion having a larger diameter than the second end portion, the first end portion being sleeved outside the second end portion.
5. The noise reducer of claim 4, wherein the second end portion is provided with a clip, and the first end portion is provided with a clip groove, and the clip is limited to the clip groove.
6. The noise reduction device according to any one of claims 1 to 5, further comprising a sound absorbing member provided in the sealed space.
7. A noise reduction device as defined in any one of claims 1 to 5, wherein one or more partitions are provided on an outer side of the first housing, each of the partitions being connected to the second housing, one or more of the partitions being for partitioning the sealed space into at least two closed chambers.
8. A refrigerator, characterized by comprising a pump body and a noise reduction device, wherein the noise reduction device is the noise reduction device according to any one of claims 1 to 7, and the pump body is arranged in a containing space formed by the noise reduction device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111583145.5A CN114412754B (en) | 2021-12-22 | 2021-12-22 | Noise reduction device and refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111583145.5A CN114412754B (en) | 2021-12-22 | 2021-12-22 | Noise reduction device and refrigerator |
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| CN114412754A CN114412754A (en) | 2022-04-29 |
| CN114412754B true CN114412754B (en) | 2024-06-04 |
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| CN114412754A (en) | 2022-04-29 |
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