Outdoor soundproofing shell of an integrated air conditioning unit

Abstract

This utility model relates to the field of air conditioning equipment protection technology, and in particular to an outdoor soundproof protective shell for an integrated air conditioning unit. It includes a protective shell frame, a base, a shock-absorbing plate, a soundproof cover, a basalt sound-absorbing cotton layer, a polymer damping sound insulation layer, an aramid fiber flame-retardant buffer layer, and a silicone rubber inner sealing layer. The base is fixedly connected to the bottom of the protective shell frame, and the shock-absorbing plate is installed above the base. Multiple sets of mounting holes are opened on the top of the shock-absorbing plate for assembling the air conditioning unit. The protective shell frame is composed of two layers of corrosion-resistant aluminum-zinc plates, forming a hollow layer in the middle, constituting a hollow soundproof structure. Soundproof covers are installed on the left, right, and rear walls of the inner cavity of the protective shell frame. The soundproof covers, from the outside in, sequentially include a basalt sound-absorbing cotton layer, a polymer damping sound insulation layer, an aramid fiber flame-retardant buffer layer, and a silicone rubber inner sealing layer. This utility model, through the double-layer structure of the protective shell frame forming a hollow sound insulation layer, significantly improves the overall sound insulation performance and achieves a highly efficient noise reduction effect.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment protection technology, and in particular to an outdoor soundproof protective shell for an integrated air conditioning unit. Background Technology

[0002] Integrated air conditioning units are widely used in commercial buildings, industrial plants, and outdoor equipment rooms. Their compressors, fans, and other components generate significant noise and vibration during operation. When installed outdoors, this noise not only affects the surrounding acoustic environment but can also cause disturbances to residents. Furthermore, prolonged vibration can lead to loose connections and structural fatigue, affecting the unit's lifespan. Currently, most outdoor air conditioning units use metal protective casings for basic protection, primarily focusing on rain, dust, and theft prevention, lacking targeted sound insulation and vibration reduction designs. Ordinary casings have limited ability to isolate mid-to-high frequency noise, and since the unit is usually directly fixed to a base, vibration is transmitted directly to the mounting foundation through rigid connections, creating structural sound transmission and further exacerbating the noise problem.

[0003] Some improvement solutions involve adding sound-absorbing materials, such as glass wool or foam plastic, to the inner wall of the casing to enhance sound absorption performance. However, these materials suffer from low fire resistance, poor weather resistance, and are prone to aging and detachment after long-term use, making it difficult to meet the requirements for long-term stable outdoor operation. Furthermore, existing structures generally lack effective elastic support devices, failing to effectively mitigate mechanical vibrations during unit operation. Other solutions attempt to increase sound insulation by increasing casing thickness or using composite panels, but this often leads to increased overall weight, installation difficulties, and limited noise reduction effectiveness as it does not isolate the vibration source. Simultaneously, the conflict between ventilation and noise control is significant; excessive enclosure, while beneficial for sound insulation, hinders condenser heat dissipation, potentially causing equipment overheating and shutdown.

[0004] Therefore, it is necessary to design an outdoor soundproof enclosure for an integrated air conditioning unit to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of existing outdoor protective shell frames for air conditioning units, such as poor sound insulation performance, insufficient vibration reduction effect, poor fire resistance and weather resistance, and difficulty in balancing heat dissipation and noise reduction, this utility model provides an integrated outdoor sound insulation protective shell for air conditioning units.

[0006] An outdoor soundproof protective shell for an integrated air conditioning unit includes a protective shell frame, a base, a shock-absorbing plate, a soundproof cover, a basalt sound-absorbing cotton layer, a polymer damping sound insulation layer, an aramid fiber flame-retardant buffer layer, and a silicone rubber inner sealing layer. The base is fixedly connected to the bottom of the protective shell frame, and a shock-absorbing plate is installed above the base. Multiple sets of mounting holes are opened on the top of the shock-absorbing plate for assembling the air conditioning unit. The protective shell frame is composed of two layers of corrosion-resistant aluminum-zinc plates, forming a hollow layer in the middle, which constitutes a hollow soundproof structure. Soundproof covers are installed on the left, right, and rear side walls of the inner cavity of the protective shell frame. The soundproof covers include, from the outside to the inside, a basalt sound-absorbing cotton layer, a polymer damping sound insulation layer, an aramid fiber flame-retardant buffer layer, and a silicone rubber inner sealing layer.

[0007] To further explain, it also includes connecting ears and extension mounting plates. Connecting ears are fixedly connected to the inner side of the soundproof cover, and multiple extension mounting plates are fixedly connected to the inner frame of the protective shell. The soundproof cover is aligned with the extension mounting plates through the connecting ears and fastened with bolts to achieve detachable installation.

[0008] To further explain, it also includes dampers and seismic springs. Multiple dampers are connected between the base and the seismic plate. The fixed end of the damper is connected to the top of the base, and the telescopic end is connected to the bottom of the seismic plate. Multiple seismic springs are also connected between the base and the seismic plate. The seismic springs are sleeved around the dampers to form an elastic support structure.

[0009] To further explain, it also includes a top cover, which is fixedly connected to the top of the protective shell frame, and the top surface of the top cover forms a sloping surface of 10° to 30° around its perimeter.

[0010] To further explain, it also includes an inspection door, with the inspection door hinged to the front of the protective shell frame. The protective shell frame, inspection door, and top cover are all made of corrosion-resistant aluminum-zinc sheet.

[0011] To further explain, it also includes louvers, with louvers opened on the lower part of the left and right side walls of the protective shell frame, and dustproof nets installed at the connection between the louvers and the protective shell frame.

[0012] The beneficial effects of this utility model are as follows: 1. This utility model forms a hollow sound insulation layer through the double-layer structure of the protective shell frame, and sets a multi-layer composite sound insulation cover in the inner cavity, which is composed of a basalt sound-absorbing cotton layer, a polymer damping sound insulation layer, an aramid fiber flame-retardant buffer layer and a silicone rubber inner sealing layer. This achieves sound absorption, vibration isolation, sealing and fire prevention functions in a coordinated manner, significantly improving the overall sound insulation performance and achieving a highly efficient noise reduction effect.

[0013] 2. This utility model forms an elastic support structure by setting a damper and an anti-vibration spring between the base and the anti-vibration plate, so that the air conditioning unit can be fixed to the anti-vibration plate through the mounting holes, effectively isolating the transmission of operating vibration to the external structure, thereby reducing structural noise transmission and improving equipment stability.

[0014] 3. This utility model uses corrosion-resistant aluminum-zinc plate to make the protective shell frame and inspection door, and the top cover is set at 10°.

[0015] The 30° sloping surface is used for drainage, and the lower sides are equipped with louvers with dustproof nets to ensure heat dissipation. At the same time, the soundproof cover is detachable and installable by bolt connection, achieving a comprehensive effect of strong weather resistance, dustproof and waterproof, reliable heat dissipation and easy maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first three-dimensional structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the protective shell frame, extension mounting plate, and silicone rubber inner sealing layer of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the soundproof cover, connecting ear, and silicone rubber inner sealing layer of this utility model.

[0020] Figure 5 This is a schematic diagram of the planar structure of this utility model.

[0021] Figure 6 This is a three-dimensional structural diagram of the anti-seismic plate, damper, and anti-seismic spring components of this utility model. The markings in the attached diagram are: 1: Protective shell frame; 11: Inspection door; 12: Louver; 101: Top cover; 102: Base; 103: Anti-seismic plate; 104: Damper; 105: Anti-seismic spring; 106: Mounting hole; 2: Extension mounting plate; 3: Soundproof cover; 4: Connecting ear; 5: Basalt sound-absorbing cotton layer; 6: Polymer damping sound insulation layer; 7: Aramid fiber flame-retardant buffer layer; 8: Silicone rubber inner sealing layer. Detailed Implementation

[0022] Example: An outdoor soundproof protective shell for an integrated air conditioning unit, such as... Figures 1-6As shown, the system includes a protective shell frame 1, a base 102, a shock-absorbing plate 103, a soundproof cover 3, a basalt sound-absorbing cotton layer 5, a polymer damping sound insulation layer 6, an aramid fiber flame-retardant buffer layer 7, and a silicone rubber inner sealing layer 8. The bottom of the protective shell frame 1 is connected to the base 102 by bolts. The shock-absorbing plate 103 is installed above the base 102. Multiple sets of mounting holes 106 are opened on the top of the shock-absorbing plate 103 for assembling the air conditioning unit. The protective shell frame 1 is composed of two layers of corrosion-resistant aluminum-zinc plates, forming a hollow layer in the middle, which constitutes a hollow sound insulation structure. The left, right, and rear walls of the inner cavity of the protective shell frame 1 are equipped with the soundproof cover 3. The soundproof cover 3 includes, from the outside to the inside, a basalt sound-absorbing cotton layer 5, a polymer damping sound insulation layer 6, an aramid fiber flame-retardant buffer layer 7, and a silicone rubber inner sealing layer 8, which are used to absorb noise, suppress vibration, and seal and prevent dust.

[0023] like Figure 3 and Figure 4 As shown, it also includes connecting ears 4 and extension mounting pieces 2. The inner side of the soundproof cover 3 is connected to the connecting ears 4 by welding. The inner side frame of the protective shell frame 1 is connected to multiple extension mounting pieces 2 by welding. The soundproof cover 3 is aligned with the extension mounting pieces 2 through the connecting ears 4 and fastened with bolts to achieve detachable installation.

[0024] like Figure 6 As shown, it also includes a damper 104 and an anti-seismic spring 105. Multiple dampers 104 are connected between the base 102 and the anti-seismic plate 103. The fixed end of the damper 104 is connected to the top of the base 102, and the telescopic end is connected to the bottom of the anti-seismic plate 103. Multiple anti-seismic springs 105 are also connected between the base 102 and the anti-seismic plate 103. The anti-seismic springs 105 are sleeved around the damper 104 to form an elastic support structure.

[0025] like Figure 1 and Figure 2 As shown, it also includes a top cover 101, an inspection door 11, and louvers 12. The top of the protective shell frame 1 is connected to the top cover 101 by welding. The top surface of the top cover 101 forms a sloping surface of 10° to 30° around its perimeter for drainage. The inspection door 11 is hinged to the front side of the protective shell frame 1. The protective shell frame 1, the inspection door 11, and the top cover 101 are all made of corrosion-resistant aluminum-zinc plates. Louvers 12 are opened at the lower part of the left and right side walls of the protective shell frame 1. Dustproof nets are installed at the connection between the louvers 12 and the protective shell frame 1.

[0026] During operation, the integrated air conditioning unit is fixed to the anti-vibration plate 103 through the mounting holes 106 on the top of the anti-vibration plate 103. The vibration generated during the operation of the unit is transmitted through the anti-vibration plate 103 to the damper 104 and the anti-vibration spring 105 below. The damper 104 absorbs high-frequency vibration energy, and the anti-vibration spring 105 provides elastic support. The two work together to form a buffer structure, which effectively reduces the transmission of vibration to the base 102 and the external foundation, reduces structural sound transmission, and improves the stability of equipment operation.

[0027] Noise radiates outward from the surface of the unit and first encounters the hollow sound insulation structure of the protective shell frame 1. This structure consists of two layers of corrosion-resistant aluminum-zinc plates with an air layer in between, which uses the principle of air sound insulation to block some of the low- and mid-frequency noise from propagating outward.

[0028] Soundproof covers 3 are provided on the left, right and rear walls of the inner cavity of the protective shell frame 1. The soundproof covers 3 include, from the outside to the inside, a basalt sound-absorbing cotton layer 5, a polymer damping sound insulation layer 6, an aramid fiber flame-retardant buffer layer 7 and a silicone rubber inner sealing layer 8. The basalt sound-absorbing cotton layer 5 absorbs mid-to-high frequency sound energy; the polymer damping sound insulation layer 6 suppresses panel vibration through material internal friction and enhances sound insulation performance; the aramid fiber flame-retardant buffer layer 7 improves structural strength and has fireproof function; the silicone rubber inner sealing layer 8 is attached to the outer wall of the unit, seals gaps, prevents noise leakage, and blocks water vapor and dust from entering.

[0029] The soundproof cover 3 is aligned with the extension mounting plate 2 inside the protective shell frame 1 via the connecting ear 4 and is fastened with bolts. The installation is stable and easy to disassemble and maintain. Louvers 12 are opened on the lower part of the left and right sides of the protective shell frame 1 to ensure internal ventilation and heat dissipation and meet the heat dissipation requirements of the air conditioner condenser. Dustproof nets are provided at the connection between the louvers 12 and the shell to prevent dust, insects and other foreign objects from entering.

[0030] The access door 11 is hinged to the front of the protective housing frame 1 and can be opened to facilitate the inspection, debugging or maintenance of the air conditioning unit. The top cover 101 is fixed to the top of the protective housing frame 1 and has a 10° to 30° inclined slope around its perimeter, allowing rainwater or snow to slide down the slope and preventing water seepage. The protective housing frame 1, access door 11 and top cover 101 are all made of corrosion-resistant aluminum-zinc plate, which has good weather resistance and corrosion resistance and is suitable for long-term outdoor use.

Claims

1. An outdoor soundproof protective shell for an integrated air conditioning unit, characterized in that: The protective shell frame (1), base (102), anti-vibration plate (103), soundproof cover (3), basalt sound-absorbing cotton layer (5), polymer damping sound insulation layer (6), aramid fiber flame-retardant buffer layer (7) and silicone rubber inner sealing layer (8) are included. The base (102) is fixedly connected to the bottom of the protective shell frame (1). The anti-vibration plate (103) is set above the base (102). Multiple sets of mounting holes (106) are opened on the top of the anti-vibration plate (103). The mounting holes (106) are used to assemble the air conditioning unit. The protective shell frame (1) is composed of two layers of anti-corrosion aluminum-zinc plates, forming a hollow layer in the middle, which constitutes a hollow sound insulation structure. The left, right and rear walls of the inner cavity of the protective shell frame (1) are equipped with soundproof cover (3). The soundproof cover (3) includes, from the outside to the inside, the basalt sound-absorbing cotton layer (5), polymer damping sound insulation layer (6), aramid fiber flame-retardant buffer layer (7) and silicone rubber inner sealing layer (8).

2. The outdoor soundproof protective shell of an integrated air conditioning unit according to claim 1, characterized in that: It also includes connecting ears (4) and extension mounting pieces (2). The inner side of the soundproof cover (3) is fixedly connected to the connecting ears (4). The inner side frame of the protective shell frame (1) is fixedly connected to multiple extension mounting pieces (2). The soundproof cover (3) is aligned with the extension mounting pieces (2) through the connecting ears (4) and fastened with bolts to achieve detachable installation.

3. The outdoor soundproof protective shell of an integrated air conditioning unit according to claim 2, characterized in that: It also includes a damper (104) and a seismic spring (105). Multiple dampers (104) are connected between the base (102) and the seismic plate (103). The fixed end of the damper (104) is connected to the top of the base (102), and the telescopic end is connected to the bottom of the seismic plate (103). Multiple seismic springs (105) are also connected between the base (102) and the seismic plate (103). The seismic springs (105) are sleeved around the damper (104) to form an elastic support structure.

4. The outdoor soundproof protective shell of an integrated air conditioning unit according to claim 3, characterized in that: It also includes a top cover (101), the top of which is fixedly connected to the protective shell frame (1), and the top surface of the top cover (101) forms a sloping surface of 10° to 30° around its perimeter.

5. The outdoor soundproof protective shell of an integrated air conditioning unit according to claim 4, characterized in that: It also includes an inspection door (11), a front hinged inspection door (11) on the protective shell frame (1), and the protective shell frame (1), the inspection door (11) and the top cover (101) are all made of corrosion-resistant aluminum-zinc plate.

6. The outdoor soundproof protective shell of an integrated air conditioning unit according to claim 5, characterized in that: It also includes louvers (12), with louvers (12) opened on the lower part of the left and right side walls of the protective shell frame (1), and a dustproof net is installed at the connection between the louvers (12) and the protective shell frame (1).

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