A noise reduction structure and an electric device

Abstract

The embodiment of the present application provides a noise reduction structure and an electric device. The noise reduction structure comprises a first structural member and a second structural member. The first structural member is provided with a first assembly surface and a first connecting portion. The second structural member is provided with a second assembly surface and a second connecting portion. The first structural member and the second structural member are connected through the first connecting portion and the second connecting portion, and the first assembly surface and the second assembly surface are arranged in a spaced manner. At least one of the first structural member and the second structural member is an injection molding member. The noise reduction structure provided by the embodiment of the present application is connected through the first connecting portion and the second connecting portion, so that the first assembly surface and the second assembly surface are arranged in a spaced manner, space is provided for deformation of the first structural member and the second structural member, and the first assembly surface and the second assembly surface can be prevented from contacting and generating noise due to deformation to a certain extent.

Description

Technical Field

[0001] This application relates to the field of noise reduction structure technology, and in particular to a noise reduction structure and an electrical device. Background Technology

[0002] Taking air conditioners as an example, air conditioners include injection molded parts, which have the characteristics of thermal expansion and contraction. In addition, injection molded parts may be easily deformed. In related technologies, the injection molded parts may deform after thermal expansion and contraction, which may put pressure on the assembly surfaces of adjacent parts, and may lead to noise problems. Utility Model Content

[0003] To address the aforementioned technical problems, embodiments of this application provide a noise reduction structure and an electrical device, which are beneficial for reducing noise.

[0004] The embodiments of this application are implemented through the following technical solutions.

[0005] This application provides a noise reduction structure, including:

[0006] A first structural component, the first structural component being provided with a first mounting surface and a first connecting portion;

[0007] The second structural component is provided with a second mounting surface and a second connecting part. The first structural component and the second structural component are connected by the first connecting part and the second connecting part, and the first mounting surface and the second mounting surface are spaced apart.

[0008] Wherein, at least one of the first structural component and the second structural component is an injection molded part.

[0009] In some embodiments, the first structural member and the second structural member are mated along a first direction, and both the first mounting surface and the second mounting surface are inclined relative to the first direction.

[0010] In some embodiments, the tilt angle between the first mounting surface and the second mounting surface relative to the first direction is in the range of 30° to 60°.

[0011] In some embodiments, the first mounting surface is parallel to the second mounting surface.

[0012] In some embodiments, the distance between the first mounting surface and the second mounting surface is greater than or equal to 0.3 mm.

[0013] In some embodiments, the noise reduction structure includes a lubricating insulating membrane.

[0014] The lubricating isolation film is disposed on the first assembly surface and / or the second assembly surface.

[0015] In some embodiments, the lubricating barrier is constructed by coating a noise-absorbing agent onto the first and / or second mounting surfaces.

[0016] In some embodiments, the first connecting portion and the second connecting portion are snap-fitted, fastened, or plugged into each other; and / or, both the first structural component and the second structural component are injection molded parts.

[0017] In some embodiments, the first connecting portion has a first fastening hole, the second connecting portion has a second fastening hole, and the noise reduction structure includes a fastener that passes through the first fastening hole and the second fastening hole to fasten the first structural member and the second structural member.

[0018] Wherein, the first connecting portion protrudes from the first mounting surface, and / or the second connecting portion protrudes from the second mounting surface.

[0019] A second aspect of this application provides an electrical device, which includes the noise reduction structure described above.

[0020] In some embodiments, the electrical appliance includes an air conditioner;

[0021] The air conditioner includes a chassis and a front frame, the chassis constituting the first structural member and the front frame constituting the second structural member; and / or,

[0022] The air conditioner includes a frame and a panel, the panel being configured as the first structural member, and the frame being configured as the second structural member; and / or,

[0023] The air conditioner includes a chassis and a volute, the chassis being configured as the first structural component and the volute being configured as the second structural component.

[0024] The noise reduction structure provided in this application includes a first structural component and a second structural component. The first structural component and the second structural component are connected by a first connecting portion and a second connecting portion, so that the first mounting surface and the second mounting surface are spaced apart. This provides space for the deformation of the first and second structural components, and to a certain extent avoids the first mounting surface from contacting the second mounting surface and generating noise due to deformation. The noise reduction structure provided in this application is beneficial for reducing noise. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the noise reduction structure according to the first embodiment of this application;

[0026] Figure 2 This is a partial structural diagram of the noise reduction structure according to the second embodiment of this application;

[0027] Figure 3 This is a partial structural diagram of the noise reduction structure according to the third embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the structure of the air conditioner according to the first embodiment of this application;

[0029] Figure 5 This is a schematic diagram of the structure of an air conditioner according to the second embodiment of this application;

[0030] Figure 6 This is a partial structural diagram of an air conditioner according to the third embodiment of this application.

[0031] Explanation of reference numerals in the attached figures

[0032] 10. First structural component; 11. First assembly surface; 12. First connecting part; 20. Second structural component; 21. Second assembly surface; 22. Second connecting part; 30. Lubricating isolation membrane; 100. Noise reduction structure; 200. Air conditioner; 210. Chassis; 220. Face frame; 230. Panel; 240. Volute tongue. Detailed Implementation

[0033] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms “comprising” and “having”, and any variations thereof, in the specification and the foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0035] In the description of the embodiments of this application, technical terms such as "first," "second," "third," and "fourth" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0036] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. Unless otherwise specified, all embodiments and optional embodiments of this application may be combined with each other to form new technical solutions. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described herein can be combined with other embodiments. Unless otherwise specified, all technical features and optional technical features of this application may be combined with each other to form new technical solutions.

[0037] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0038] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0039] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0040] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0041] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "projection" refers to an orthographic projection in which parallel projection lines are perpendicular to the projection plane.

[0042] The following is a detailed description of this application.

[0043] This application provides an electrical device, which includes a noise reduction structure 100 according to any embodiment of this application.

[0044] For example, the electrical appliance includes, but is not limited to, an air conditioner 200, a refrigerator, a microwave oven, or a clothing handling device.

[0045] It is understood that air conditioner 200 can include various forms. Air conditioner 200 can be the indoor unit of a split air conditioner, air conditioner 200 can also be the outdoor unit of a split air conditioner, air conditioner 200 can also be an integrated air conditioner, etc. There are no specific restrictions on the types of air conditioner 200 that can be applied to the packaging components.

[0046] Please see Figures 1 to 3 This application provides a noise reduction structure 100, which includes a first structural member 10 and a second structural member 20. The first structural member 10 is provided with a first mounting surface 11 and a first connecting portion 12. The second structural member 20 is provided with a second mounting surface 21 and a second connecting portion 22. The first structural member 10 and the second structural member 20 are connected by the first connecting portion 12 and the second connecting portion 22, and the first mounting surface 11 and the second mounting surface 21 are spaced apart. At least one of the first structural member 10 and the second structural member 20 is an injection molded part.

[0047] For example, the first connecting portion 12 is disposed on the first mounting surface 11.

[0048] For example, the second connecting portion 22 is disposed on the second mounting surface 21.

[0049] One of the first structural component 10 and the second structural component 20 may be an injection molded part, and the other may be a non-injection molded part, such as a sheet metal part. Alternatively, both the first structural component 10 and the second structural component 20 may be injection molded parts.

[0050] For example, the first connecting portion 12 and the second connecting portion 22 correspond one-to-one. That is, the number of first connecting portions 12 and second connecting portions 22 are the same.

[0051] It should be noted that the first connecting part 12 and the second connecting part 22 have multiple structural forms, that is, there are multiple ways to connect the first structural member 10 and the second structural member 20.

[0052] For example, the first structural member 10 and the second structural member 20 are connected by a first connecting part 12 and a second connecting part 22, and the first mounting surface 11 and the second mounting surface 21 are spaced apart.

[0053] For example, the first connecting part 12 and the second connecting part 22 can be a snap-fit ​​connection, a fastening connection, or a plug-in connection.

[0054] For example, one of the first connecting part 12 and the second connecting part 22 can be a buckle, and the other can be a slot. The buckle is engaged in the slot to achieve a snap-fit ​​between the first structural member 10 and the second structural member 20.

[0055] For example, one of the first connecting part 12 and the second connecting part 22 can be a plug-in part, and the other can be a plug-in groove. The plug-in part is inserted into the plug-in groove to realize the plug-in engagement between the first structural member 10 and the second structural member 20.

[0056] For example, please refer to Figure 1 The first connecting part 12 has a first fastening hole, the second connecting part 22 has a second fastening hole, and the noise reduction structure 100 includes a fastener, which passes through the first fastening hole and the second fastening hole to fasten the first structural member 10 and the second structural member 20.

[0057] For example, fasteners can be screws, bolts, or rivets.

[0058] For example, please refer to Figures 1 to 2 The first connecting portion 12 protrudes from the first mounting surface 11, and / or the second connecting portion 22 protrudes from the second mounting surface 21.

[0059] In other words, the first connecting part 12 can protrude from the first mounting surface 11, while the second connecting part 22 does not protrude from the second mounting surface 21. In this way, the first connecting part 12 can abut against the second mounting surface 21, so that the first mounting surface 11 and the second mounting surface 21 are spaced apart.

[0060] Alternatively, the second connecting part 22 can protrude from the second mounting surface 21, while the first connecting part 12 does not protrude from the first mounting surface 11. In this way, the second connecting part 22 can abut against the first mounting surface 11, so that the first mounting surface 11 and the second mounting surface 21 are spaced apart.

[0061] Alternatively, the first connecting part 12 can protrude from the first mounting surface 11, and the second connecting part 22 can protrude from the second mounting surface 21. In this way, the first connecting part 12 can abut against the second connecting part 22, so that the first mounting surface 11 and the second mounting surface 21 are spaced apart.

[0062] For example, the first mounting surface 11 is provided with a first screw post protruding from it, the first screw post constitutes the first connecting portion 12, and the interior of the first screw post has a first fastening hole.

[0063] For example, the second mounting surface 21 is provided with a second screw post protruding outwards, the second screw post constitutes the second connecting portion 22, and the interior of the second screw post has a second fastening hole.

[0064] By protruding the first connecting portion 12 onto the first mounting surface 11, and / or protruding the second connecting portion 22 onto the second mounting surface 21, the first mounting surface 11 and the second mounting surface 21 are spaced apart. Thus, the first connecting portion 12 and the second connecting portion 22 can contact and bear force, and the areas of the first mounting surface 11 other than the first connecting portion 12 and the areas of the second mounting surface 21 other than the second connecting portion 22 are spaced apart to provide space for the deformation of the first structural member 10 and the second structural member 20.

[0065] The noise reduction structure 100 provided in this embodiment includes a first structural member 10 and a second structural member 20. The first structural member 10 has a first connecting portion 12 on a first mounting surface 11, and the second structural member 20 has a second connecting portion 22 on a second mounting surface 21. The first structural member 10 and the second structural member 20 are connected by the first connecting portion 12 and the second connecting portion 22, so that the first mounting surface 11 and the second mounting surface 21 are spaced apart. This provides space for the deformation of the first structural member 10 and the second structural member 20, and to a certain extent avoids the first mounting surface 11 and the second mounting surface 21 from contacting each other and generating noise due to deformation. The noise reduction structure 100 provided in this embodiment is beneficial for reducing noise.

[0066] Injection molded parts may deform due to thermal expansion and contraction, which may compress the assembly surfaces of adjacent parts and potentially cause noise. In related technologies, velvet is pasted between the assembly surfaces to reduce the noise caused by thermal expansion and contraction. However, pasting velvet has little effect on improving thermal expansion and contraction, and the use of velvet is limited. It is inconvenient to paste velvet on some complex structures and it is easy to fall off. The production efficiency of pasting velvet is slow and cannot achieve automated production.

[0067] The noise reduction structure 100 of this application embodiment, by spaced apart the first assembly surface 11 and the second assembly surface 21, provides space for the deformation of the first structural member 10 and the second structural member 20. Even if the first structural member 10 or the second structural member 20 deforms, the first assembly surface 11 of the first structural member 10 and the second assembly surface 21 of the second structural member 20 can move freely for a certain distance. That is, to a certain extent, the first assembly surface 11 and the second assembly surface 21 will not come into contact, and naturally no friction noise will be generated. Furthermore, it avoids the limitations of using velour cloth, improves the problems of velour cloth being inconvenient to attach and easy to fall off, and is conducive to realizing automated production and improving production efficiency.

[0068] In some embodiments, please refer to Figure 2The first structural component 10 and the second structural component 20 are connected along the first direction, and the first assembly surface 11 and the second assembly surface 21 are both inclined relative to the first direction.

[0069] First direction Figure 2 X represents the middle.

[0070] In other words, the first structural component 10 and the second structural component 20 are assembled along the first direction. In other words, the first direction is the assembly direction of the first structural component 10 and the second structural component 20.

[0071] Here, the angles at which the first assembly surface 11 and the second assembly surface 21 are inclined relative to the first direction can be the same or different.

[0072] For example, the first mounting surface 11 is parallel to the second mounting surface 21. That is, the first mounting surface 11 and the second mounting surface 21 are inclined at the same angle relative to the first direction. This facilitates relative sliding between the first structural member 10 and the second structural member 20 when they come into contact.

[0073] Taking the first direction as the vertical direction as an example, both the first assembly surface 11 and the second assembly surface 21 are inclined relative to the vertical direction.

[0074] In related technologies, positive pressure assembly is performed between adjacent assembly surfaces, that is, the assembly surfaces are perpendicular to the assembly direction. In this way, after the adjacent structural components are deformed, they will be positively squeezed. When the adjacent structural components expand and contract with heat, it is difficult for them to slide at the squeezing point (i.e., the friction is large). The positive squeezing after the deformation of the adjacent structural components will accumulate energy. When the adjacent structural components slide against each other when heated / cooled, obvious abnormal noise is generated.

[0075] In this embodiment, by tilting both the first mounting surface 11 and the second mounting surface 21 relative to the first direction, even if the first structural member 10 and the second structural member 20 deform and the first mounting surface 11 and the second mounting surface 21 come into contact, the first structural member 10 and the second structural member 20 can slide relative to each other within a certain range, thereby reducing noise. In other words, by tilting both the first mounting surface 11 and the second mounting surface 21 relative to the first direction, the energy accumulated between the first mounting surface 11 and the second mounting surface 21 can be reduced, thereby reducing the energy released instantaneously during relative movement of the mounting surfaces, reducing the noise intensity to a level that is not perceptible to humans, thus improving the noise caused by thermal expansion and contraction. Furthermore, tilting both the first mounting surface 11 and the second mounting surface 21 relative to the first direction can also cover the gap between the first mounting surface 11 and the second mounting surface 21, thereby improving the aesthetics of the noise reduction structure 100.

[0076] In some embodiments, please refer to Figure 2The distance between the first assembly surface 11 and the second assembly surface 21 is greater than or equal to 0.3 mm.

[0077] This helps to further reduce the contact between the first assembly surface 11 and the second assembly surface 21, and the noise generated due to deformation.

[0078] In some embodiments, the width of the first mounting surface 11 and / or the second mounting surface 21 is in the range of 1.8 mm to 3 mm.

[0079] In some embodiments, the inclination angle between the first mounting surface 11 and the second mounting surface 21 relative to the first direction is in the range of 30° to 60°.

[0080] The tilt angle between the first assembly surface 11 and the second assembly surface 21 relative to the first direction can be any one of 30°, 33°, 35°, 38°, 40°, 42°, 45°, 48°, 50°, 53°, 55°, 57°, 60° or any value between two of them.

[0081] By setting the tilt angle between the first assembly surface 11 and the second assembly surface 21 relative to the first direction to be in the range of 30° to 60°, it is beneficial to enable the first structural component 10 and the second structural component 20 to slide relative to each other when they come into contact, while also enabling the first structural component 10 and the second structural component 20 to have a certain structural strength. That is, it can take into account the structural strength, sliding performance and noise reduction performance of the first structural component 10 and the second structural component 20.

[0082] In some embodiments, please refer to Figure 3 The noise reduction structure 100 includes a lubricating isolation membrane 30, which is disposed on the first mounting surface 11 and / or the second mounting surface 21.

[0083] The lubricating isolation film 30 can be provided on the first assembly surface 11, the second assembly surface 21, or both the first assembly surface 11 and the second assembly surface 21. This helps to reduce the static friction between the first assembly surface 11 and the second assembly surface 21.

[0084] For example, after the first mounting surface 11 and / or the second mounting surface 21 are provided with a lubricating isolation film 30, the coefficient of friction of the first mounting surface 11 and / or the second mounting surface 21 can be as low as 0.05.

[0085] The lubricating separator 30 provides excellent isolation and lubrication, effectively mitigating the thermal expansion and contraction issues of the first structural component 10 and the second structural component 20. It also helps reduce the friction between the first assembly surface 11 and / or the second assembly surface 21. Thus, when the first assembly surface 11 and the second assembly surface 21 come into contact, the superior lubricity of the lubricating separator 30 reduces the friction between the first structural component 10 and the second structural component 20, facilitating relative sliding between them. The lubricating separator 30 also exhibits good adhesion and wear resistance, effectively reducing noise caused by thermal expansion and contraction and frictional noise between plastic parts.

[0086] It should be noted that the specific type of the lubricating separator 30 is not limited here.

[0087] In some embodiments, the lubricating isolation film 30 is configured to be formed by coating a noise-absorbing agent onto the first mounting surface 11 and / or the second mounting surface 21.

[0088] For example, the noise-absorbing agent may be a fluorinated noise-absorbing agent.

[0089] After the noise-absorbing agent is applied to the first assembly surface 11 and / or the second assembly surface 21, the solvent evaporates, forming a dense, nano-thickness lubricating isolation film 30 on the first assembly surface 11 and / or the second assembly surface 21. This lubricating isolation film 30 has good adhesion and an extremely low coefficient of friction.

[0090] For example, the sound damping agent can be applied using tools such as a brush, spray bottle, or robotic arm.

[0091] The sound-absorbing agent has excellent eco-friendly properties, is insoluble in water, volatile, odorless, and non-flammable, and its solvent contains fluoride components.

[0092] The noise-absorbing agent has good compatibility with common plastic parts and can be widely used in various common plastic materials, such as PP, PC, ABS, PS, and leather.

[0093] After applying a sound-dampening agent to plastic parts, its superior lubricity is unaffected by external humidity. The coating will not fail within the temperature range of -50 to 250°C. Its excellent lubrication performance can also be applied to moving parts, such as louvers, connecting rods, air guides, motors, and other moving shafts, replacing lubricating grease.

[0094] In some embodiments, please refer to Figures 4 to 6 The electrical appliance includes an air conditioner 200. The air conditioner 200 includes a chassis 210 and a front frame 220. The chassis 210 is configured as a first structural member 10, and the front frame 220 is configured as a second structural member 20.

[0095] In related technologies, during the cooling or heating process of an air conditioner, the temperature difference between the indoor unit and the ambient temperature is large. When the air conditioner is turned on or off, the temperature of the plastic parts near the air outlet changes rapidly, and the plastic parts expand or contract. Due to assembly constraints, adjacent mating parts cannot deform completely freely, and there may be squeezing, sliding, or impact on the assembly contact surface, resulting in abnormal noise.

[0096] Please see Figures 4 to 5 Since the chassis 210 is configured as the first structural member 10 and the face frame 220 is configured as the second structural member 20, that is, the chassis 210 has a first mounting surface 11 and a first connecting part 12 disposed on the first mounting surface 11, and the face frame 220 has a second mounting surface 21 and a second connecting part 22 disposed on the second mounting surface 21. The chassis 210 and the face frame 220 are connected through the first connecting part 12 and the second connecting part 22, so that the first mounting surface 11 and the second mounting surface 21 are spaced apart. In this way, space can be provided for the deformation of the chassis 210 and the face frame 220, and to a certain extent, the first mounting surface 11 and the second mounting surface 21 can be prevented from contacting each other and generating noise due to deformation.

[0097] In other embodiments, please refer to Figure 6 The air conditioner 200 includes a frame 220 and a panel 230. The panel 230 constitutes a first structural member 10, and the frame 220 constitutes a second structural member 20.

[0098] Since the panel 230 is configured as the first structural member 10 and the frame 220 is configured as the second structural member 20, that is, the panel 230 has a first mounting surface 11 and a first connecting portion 12 disposed on the first mounting surface 11, and the frame 220 has a second mounting surface 21 and a second connecting portion 22 disposed on the second mounting surface 21. The panel 230 and the frame 220 are connected through the first connecting portion 12 and the second connecting portion 22, so that the first mounting surface 11 and the second mounting surface 21 are spaced apart. In this way, space can be provided for the deformation of the panel 230 and the frame 220, and to a certain extent, the first mounting surface 11 and the second mounting surface 21 can be avoided from contacting each other and generating noise due to deformation.

[0099] In other embodiments, please refer to Figure 4 The air conditioner 200 includes a chassis 210 and a volute 240. The chassis 210 constitutes a first structural member 10, and the volute 240 constitutes a second structural member 20.

[0100] Since the chassis 210 is configured as the first structural member 10 and the volute 240 is configured as the second structural member 20, that is, the chassis 210 has a first mounting surface 11 and a first connecting portion 12 disposed on the first mounting surface 11, and the volute 240 has a second mounting surface 21 and a second connecting portion 22 disposed on the second mounting surface 21. The chassis 210 and the volute 240 are connected through the first connecting portion 12 and the second connecting portion 22, so that the first mounting surface 11 and the second mounting surface 21 are spaced apart. In this way, space can be provided for the deformation of the chassis 210 and the volute 240, and to a certain extent, the first mounting surface 11 and the second mounting surface 21 can be prevented from contacting each other and generating noise due to deformation.

[0101] For example, by setting the first mounting surface 11 and the second mounting surface 21 at an interval, i.e., the first mounting surface 11 and the second mounting surface 21 are not in complete contact, the risk of abnormal noise caused by the interaction of thermal expansion and contraction of the plastic parts is reduced, and the influence of plastic part deformation on thermal expansion and contraction is increased. The first mounting surface 11 and the second mounting surface 21 are at a certain angle, which helps to cover the gap between the first mounting surface 11 and the second mounting surface 21, so that no obvious gap is visible in appearance, improving the aesthetics of the noise reduction structure 100. Moreover, the first mounting surface 11 and the second mounting surface 21 are at a certain angle, so when the plastic part deforms, the first mounting surface 11 and the second mounting surface 21 will not be in direct pressure contact and pressed together, dispersing the pressure in the direct pressure direction of the first mounting surface 11 and the second mounting surface 21, and structurally allowing the contact point to slide freely.

[0102] The noise levels of test machine 1 and test machine 2 were tested below. Test machine 1 was tested before and after applying the noise-absorbing agent, and test machine 2 was tested before and after applying the noise-absorbing agent. The test results are shown in the table below.

[0103]

[0104] According to the test data in the table, compared with the data before applying the sound-absorbing agent, the lubricating isolation film 30 has a significant effect on improving thermal expansion and contraction. The plastic parts of the air conditioner 200 have small and long assembly contact surfaces with corners, making it difficult to completely cover them with felt. There are also cases of detachment, adhesion exceeding the assembly area, and affecting the appearance. However, the structural size and shape of the assembly surface have less impact on the application of the sound-absorbing agent, and automated application or spraying can be achieved.

[0105] The abnormal noise produced by plastic parts due to thermal expansion and contraction is caused by the difference in the coefficient of thermal expansion between the plastic parts and the mating parts under temperature changes.

[0106] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0107] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A noise reduction structure, characterized in that, include: A first structural component, the first structural component being provided with a first mounting surface and a first connecting portion; The second structural component is provided with a second mounting surface and a second connecting part. The first structural component and the second structural component are connected by the first connecting part and the second connecting part, and the first mounting surface and the second mounting surface are spaced apart. Wherein, at least one of the first structural component and the second structural component is an injection molded part.

2. The noise reduction structure according to claim 1, characterized in that, The first structural component and the second structural component are connected along a first direction, and both the first assembly surface and the second assembly surface are inclined relative to the first direction.

3. The noise reduction structure according to claim 2, characterized in that, The inclination angle between the first mounting surface and the second mounting surface relative to the first direction is in the range of 30° to 60°; and / or, The first assembly surface is parallel to the second assembly surface.

4. The noise reduction structure according to claim 1, characterized in that, The distance between the first assembly surface and the second assembly surface is greater than or equal to 0.3 mm.

5. The noise reduction structure according to any one of claims 1-4, characterized in that, The noise reduction structure includes a lubricating insulating membrane. The lubricating isolation film is disposed on the first assembly surface and / or the second assembly surface.

6. The noise reduction structure according to claim 5, characterized in that, The lubricating isolation membrane is formed by coating a noise-absorbing agent onto the first and / or the second assembly surfaces.

7. The noise reduction structure according to any one of claims 1-4, characterized in that, The first connecting part and the second connecting part are snap-fitted, fastened, or plugged into each other; and / or, both the first structural component and the second structural component are injection molded parts.

8. The noise reduction structure according to any one of claims 1-4, characterized in that, The first connecting part has a first fastening hole, the second connecting part has a second fastening hole, and the noise reduction structure includes a fastener, which passes through the first fastening hole and the second fastening hole to fasten the first structural member and the second structural member. Wherein, the first connecting portion protrudes from the first mounting surface, and / or the second connecting portion protrudes from the second mounting surface.

9. An electrical device, characterized in that, The electrical device includes the noise reduction structure according to any one of claims 1 to 8.

10. The electrical appliance according to claim 9, characterized in that, The electrical appliances include air conditioners; The air conditioner includes a chassis and a front frame, the chassis being configured as the first structural member and the front frame being configured as the second structural member; And / or, The air conditioner includes a frame and a panel, the panel being configured as the first structural member, and the frame being configured as the second structural member; and / or, The air conditioner includes a chassis and a volute, the chassis being configured as the first structural component and the volute being configured as the second structural component.

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