A noise reduction support for a cascade vibration-absorbing and sound-absorbing integrated air conditioner outdoor unit

Abstract

The utility model relates to a kind of noise reduction support of cascade vibration-absorbing sound-absorbing integrated air conditioner outdoor unit, including the mounting frame with horizontal section and vertical section, rain-shielding sound-absorbing piece and back sound-absorbing piece, the horizontal section of mounting frame is used to install air conditioner outdoor unit, and the horizontal section top of mounting frame is provided with the first shock absorber for being contacted with air conditioner outdoor unit, the vertical section of mounting frame is used to be fixed with outer wall, and two-stage shock absorber is arranged between the vertical section of mounting frame and outer wall;The rain-shielding sound-absorbing piece is arranged on the vertical section upper end of mounting frame;The back sound-absorbing piece is arranged on the vertical section front side of mounting frame.The utility model structure design is reasonable, vibration transmission path is blocked by first shock absorber and two-stage shock absorber, rain-shielding sound-absorbing piece and back sound-absorbing piece are combined to weaken aerodynamic noise, with vibration damping, sound absorption and rain-proof function, can significantly reduce vibration transmission efficiency, noise reduction effect is remarkable, effectively improve the environmental adaptability and comfort degree when air conditioner outdoor unit operates.

Description

Technical Field

[0001] This utility model relates to a cascaded vibration damping and sound absorption integrated noise reduction bracket for an air conditioner outdoor unit. Background Technology

[0002] Currently, air conditioner outdoor units generate significant vibration and noise during operation. On one hand, vibration is transmitted to the wall through rigidly connected brackets, generating structurally transmitted noise and affecting the comfort of the living environment. On the other hand, the noise from the outdoor unit's operation is transmitted through the walls and air, further exacerbating noise pollution. Existing technologies often employ single-layer rubber pads for vibration reduction and independently installed sound-absorbing covers for sound absorption. However, these solutions have the following shortcomings: limited vibration reduction effect, unable to effectively block the transmission path of vibration; the sound-absorbing and rainproof structures are separate, occupying space and causing maintenance inconvenience; the overall noise reduction effect is limited, and the service life is short. Therefore, there is an urgent need for an integrated noise-reducing bracket with a reasonable structure that combines vibration reduction, sound absorption, and rainproof functions. Utility Model Content

[0003] This utility model addresses the problems existing in the prior art by providing a cascaded vibration damping and sound absorption integrated noise reduction bracket for air conditioner outdoor units.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a cascaded vibration damping and sound absorption integrated air conditioner outdoor unit noise reduction bracket, comprising a mounting frame with a horizontal section and a vertical section, a rainproof sound-absorbing component, and a back sound-absorbing component. The horizontal section of the mounting frame is used to install the air conditioner outdoor unit, and a primary vibration damping component is provided at the top of the horizontal section of the mounting frame for contact with the air conditioner outdoor unit. The vertical section of the mounting frame is used to fix it to the exterior wall, and a secondary vibration damping component is provided between the vertical section of the mounting frame and the exterior wall. The rainproof sound-absorbing component is located at the upper end of the vertical section of the mounting frame. The back sound-absorbing component is located on the front side of the vertical section of the mounting frame.

[0005] Furthermore, the mounting bracket includes a pair of horizontal support rods spaced apart on the left and right for mounting the outdoor unit of the air conditioner. Each horizontal support rod has a vertical support rod fixed to its rear end. The vertical support rod is connected to the exterior wall. The rainproof sound-absorbing component is installed at the upper end of the two vertical support rods. The back sound-absorbing component is installed on the front side of the two vertical support rods.

[0006] Furthermore, the primary shock absorber includes a pair of shock-absorbing rubber pads spaced apart on the left and right, and the pair of shock-absorbing rubber pads are respectively fixed to the top of a pair of horizontal support rods.

[0007] Furthermore, the top of the shock-absorbing rubber pad is provided with anti-slip ridges distributed along its length.

[0008] Furthermore, the height of the anti-slip ridges is 1-3mm, and the spacing is 5-10mm.

[0009] Furthermore, the lower end of each vertical support rod is secured to the exterior wall by a pair of upper and lower distributed anchor bolts; the secondary damping component is a ring-shaped damping pad, which is sleeved on the outside of the anchor bolt and located between the vertical support rod and the exterior wall.

[0010] Furthermore, the diameter of the damping pad is 3 to 5 times the diameter of the anchor bolt, and the thickness of the damping pad is 5 to 15 mm.

[0011] Furthermore, the rainproof sound-absorbing component includes a rainproof cover plate, the lower surface of which is provided with a first foamed metal sound-absorbing layer; the back sound-absorbing component includes a vertically arranged back plate, the front side of which is provided with a second foamed metal sound-absorbing layer.

[0012] Furthermore, the rain cover is inclined downward at 5° to 15° relative to the horizontal plane, and the front end of the rain cover is provided with a guide eave that bends downward at 90° to 120°.

[0013] Furthermore, a drainage groove is provided between the lower ends of the two vertical support rods, and the drainage groove has a U-shaped cross-section.

[0014] Compared with the prior art, the present invention has the following effects: The present invention has a reasonable structural design. It blocks the vibration transmission path through primary and secondary shock absorbers, and weakens aerodynamic noise by combining rainproof and sound-absorbing components and back sound-absorbing components. It has the functions of vibration reduction, sound absorption and rain protection. It can significantly reduce the vibration transmission efficiency, and the noise reduction effect is significant. It effectively improves the environmental adaptability and comfort of the air conditioner outdoor unit during operation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model; Figure 2 This is a rear view of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the connection between the mounting bracket and the exterior wall in an embodiment of this utility model.

[0016] In the picture: 1-Mounting bracket; 2-Rainproof sound-absorbing component; 3-Back sound-absorbing component; 4-Air conditioner outdoor unit; 5-Exterior wall; 6-Horizontal support rod; 7-Vertical support rod; 8-Shock-absorbing rubber pad; 9-Anchor bolt; 10-Shock-absorbing pad; 11-Rainproof cover plate; 12-First foamed metal sound-absorbing layer; 13-Back panel; 14-Second foamed metal sound-absorbing layer; 15-Guide eaves; 16-Drainage channel. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] like Figures 1-3 As shown, this utility model discloses a cascaded vibration damping and sound absorption integrated air conditioner outdoor unit noise reduction bracket. Its purpose is to overcome the shortcomings of existing air conditioner outdoor unit brackets, such as poor vibration damping and noise reduction effects and lack of rain protection. Specifically, it includes a mounting frame 1 with horizontal and vertical sections, a rain-proof sound-absorbing component 2, and a back sound-absorbing component 3. The horizontal section of the mounting frame 1 is used to install the air conditioner outdoor unit 4, and a primary vibration damping component is provided at the top of the horizontal section for contact with the air conditioner outdoor unit. The vertical section of the mounting frame 1 is used to fix it to an external wall 5, and a secondary vibration damping component is provided between the vertical section of the mounting frame 1 and the external wall 5. The rain-proof sound-absorbing component 2 is located at the upper end of the vertical section of the mounting frame 1, above the air conditioner outdoor unit 4, and serves to provide rain protection and sound absorption. The back sound-absorbing component 3 is located on the front side of the vertical section of the mounting frame 1, behind the air conditioner outdoor unit, and serves to absorb sound. By blocking the vibration transmission path through primary and secondary damping components, and combining rainproof and sound-absorbing components with back sound-absorbing components to reduce aerodynamic noise, this system combines vibration reduction, sound absorption, and rain protection functions, significantly reducing vibration transmission efficiency and achieving remarkable noise reduction.

[0020] In this embodiment, the mounting frame 1 includes a pair of horizontal support rods 6 spaced apart on the left and right for mounting the outdoor unit 4 of the air conditioner. Each horizontal support rod 6 has a vertical support rod 7 fixed to its rear end. Therefore, the mounting frame has two horizontal support rods and two vertical support rods. The vertical support rods 7 are connected to the exterior wall 5. The rainproof and sound-absorbing component 2 is located at the upper end of the two vertical support rods 7. The back sound-absorbing component 3 is located on the front side of the two vertical support rods 7.

[0021] In this embodiment, the primary shock absorber includes a pair of shock-absorbing rubber pads 8 spaced apart on the left and right. The pair of shock-absorbing rubber pads 8 are respectively fixed to the top of a pair of horizontal support rods 6. The shock-absorbing rubber pads are parallel to the horizontal support rods, and the shock-absorbing rubber pads play a primary shock-absorbing role for the outdoor unit of the air conditioner.

[0022] In this embodiment, the top of the shock-absorbing rubber pad 8 is provided with anti-slip ridges distributed along its length to improve the anti-slip effect. Furthermore, the height of the anti-slip ridges is 1–3 mm, and the spacing is 5–10 mm.

[0023] In this embodiment, the lower end of each vertical support rod 7 is locked to the outer wall 5 by a pair of upper and lower distributed anchor bolts 9; the secondary damping component is a ring-shaped damping pad 10, which is sleeved on the outside of the anchor bolt 9 and located between the vertical support rod 7 and the outer wall 5, and plays a secondary damping role through the damping pad.

[0024] In this embodiment, both the damping rubber pad and the damping washer are made of EPDM rubber, which has a Shore hardness of 60±5 HA, a tensile strength of ≥15MPa, and an elongation at break of ≥300%. Preferably, the anchor bolt is a vibration damping bolt.

[0025] In this embodiment, the diameter of the damping pad 10 is 3 to 5 times the diameter of the anchor bolt, and the thickness of the damping pad 10 is 5 to 15 mm.

[0026] In this embodiment, the rainproof sound-absorbing component 2 includes a rainproof cover plate 11. The rear end of the rainproof cover plate 11 is connected to the upper end of two vertical support rods 7. A first foamed metal sound-absorbing layer 12 is provided on the lower surface of the rainproof cover plate 11. The first foamed metal sound-absorbing layer is used to absorb the operating noise of the air conditioner outdoor unit from above.

[0027] In this embodiment, the back sound-absorbing component 3 includes a vertically arranged back plate 13, which is connected to two vertical support rods 7. A second foamed metal sound-absorbing layer 14 is provided on the front side of the back plate 13, and the second foamed metal sound-absorbing layer is used to absorb the operating noise of the air conditioner outdoor unit from the back side of the air conditioner outdoor unit in a wide frequency range.

[0028] In this embodiment, the materials of the first foamed metal sound-absorbing layer and the second foamed metal sound-absorbing layer are both open-cell aluminum foam with a porosity of 75%~85% and a thickness of 10~20mm.

[0029] In this embodiment, the rain cover 11 is inclined downwards at 5° to 15° relative to the horizontal plane, with a lower front end and a higher rear end, so as to facilitate the forward diversion of rainwater.

[0030] In this embodiment, the front end of the rain cover 11 is provided with a guide eave 15 that bends downwards by 90° to 120°, and the bending length of the guide eave 15 is 20 to 40 mm, so as to improve the guiding effect of rainwater.

[0031] In this embodiment, a drainage groove 16 is provided between the lower ends of the two vertical support rods 7. The drainage groove 16 has a U-shaped cross section, a depth of 5-10 mm, and a width of 10-20 mm.

[0032] In this embodiment, both the rain cover and the back panel are detachably connected to the two vertical support rods, for example, via fasteners. In another embodiment, both the rain cover and the back panel are detachably connected to the two vertical support rods via snap-fit ​​fasteners, such as female snap-fit ​​fasteners on the vertical support rods and male snap-fit ​​fasteners on the rain cover and the back panel.

[0033] In this embodiment, in order to improve structural strength, reinforcing rods are provided between the rain cover and the back plate, and between the horizontal support rod and the vertical support rod.

[0034] Advantages of this utility model: (1) Two-stage vibration reduction design: The damping rubber pad and the damping pad form a cascaded vibration reduction system, which can significantly reduce the vibration transmission efficiency; (2) Integrated sound absorption and rainproof: The rain cover and back panel have built-in foam metal sound-absorbing layers with sound absorption and protection functions; (3) Significant noise reduction effect: The noise absorption rate can reach more than 75% in the wide frequency range of 500Hz~4000Hz.

[0035] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then, unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0036] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0037] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A cascaded vibration damping and sound absorption integrated noise reduction bracket for an air conditioner outdoor unit, characterized in that: The package includes a mounting bracket with horizontal and vertical sections, a rainproof sound-absorbing component, and a back sound-absorbing component. The horizontal section of the mounting bracket is used to install the outdoor unit of the air conditioner, and a primary vibration damping component is provided at the top of the horizontal section for contact with the outdoor unit. The vertical section of the mounting bracket is used to fix it to the exterior wall, and a secondary vibration damping component is provided between the vertical section of the mounting bracket and the exterior wall. The rainproof sound-absorbing component is located at the upper end of the vertical section of the mounting bracket. The back sound-absorbing component is located on the front side of the vertical section of the mounting bracket.

2. The cascaded vibration damping and sound absorption integrated air conditioner outdoor unit noise reduction bracket according to claim 1, characterized in that: The mounting bracket includes a pair of horizontal support rods spaced apart on the left and right for mounting the outdoor unit of the air conditioner. Each horizontal support rod has a vertical support rod fixed to its rear end. The vertical support rod is connected to the exterior wall. The rainproof and sound-absorbing component is installed at the upper end of the two vertical support rods. The back sound-absorbing component is installed on the front side of the two vertical support rods.

3. The cascaded vibration damping and sound absorption integrated air conditioner outdoor unit noise reduction bracket according to claim 2, characterized in that: The primary shock absorber includes a pair of shock-absorbing rubber pads spaced apart on the left and right, and the pair of shock-absorbing rubber pads are respectively fixed to the top of a pair of horizontal support rods.

4. The cascaded vibration damping and sound absorption integrated air conditioner outdoor unit noise reduction bracket according to claim 3, characterized in that: The top of the shock-absorbing rubber pad is provided with anti-slip ridges distributed along its length.

5. The cascaded vibration damping and sound absorption integrated air conditioner outdoor unit noise reduction bracket according to claim 4, characterized in that: The anti-slip ridges have a height of 1-3mm and a spacing of 5-10mm.

6. The cascaded vibration damping and sound absorption integrated air conditioner outdoor unit noise reduction bracket according to claim 2, characterized in that: The lower end of each vertical support rod is secured to the exterior wall by a pair of upper and lower anchor bolts; the secondary damping component is a ring-shaped damping pad, which is sleeved on the outside of the anchor bolt and located between the vertical support rod and the exterior wall.

7. The cascaded vibration damping and sound absorption integrated air conditioner outdoor unit noise reduction bracket according to claim 6, characterized in that: The diameter of the damping pad is 3 to 5 times the diameter of the anchor bolt, and the thickness of the damping pad is 5 to 15 mm.

8. The cascaded vibration damping and sound absorption integrated air conditioner outdoor unit noise reduction bracket according to claim 1, characterized in that: The rainproof sound-absorbing component includes a rainproof cover plate, the lower surface of which is provided with a first foamed metal sound-absorbing layer; the back sound-absorbing component includes a vertically arranged back plate, the front side of which is provided with a second foamed metal sound-absorbing layer.

9. The cascaded vibration damping and sound absorption integrated air conditioner outdoor unit noise reduction bracket according to claim 8, characterized in that: The rain cover is inclined downward at 5° to 15° relative to the horizontal plane, and the front end of the rain cover is provided with a guide eave that bends downward at 90° to 120°.

10. A cascaded vibration damping and sound absorption integrated air conditioner outdoor unit noise reduction bracket according to claim 2, characterized in that: A drainage groove is provided between the lower ends of the two vertical support rods, and the cross-section of the drainage groove is U-shaped.

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