Ventilation air conditioner noise reduction device

Abstract

The invention relates to the technical field of air conditioners, and discloses a ventilation air conditioner noise reduction device which comprises a torque balance heat dissipation mechanism, a wrapping sound absorption mechanism is arranged on the surface of the torque balance heat dissipation mechanism, and a ventilation sound absorption mechanism is arranged on the inner wall of the air inlet side of the wrapping sound absorption mechanism. An echo reflection mechanism is arranged on one side of the ventilation sound absorption mechanism, a copper pipe damping mechanism is arranged on one side of the torque balance heat dissipation mechanism, and a ventilation damping mechanism is arranged on the inner wall of the exhaust side of the wrapping sound absorption mechanism. According to the noise reduction device for the ventilation air conditioner, when the noise reduction device is used, periodic torque generated when the two heat dissipation fan blades rotate can form self-balance through the torque balance heat dissipation mechanism, torque loads are prevented from being output outwards, the arranged radial anti-vibration rings serve as supports for the edges of the heat dissipation fan blades, radial constraint is formed on the heat dissipation fan blades, and the noise reduction effect is improved. Therefore, vibration noise is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a ventilation and air conditioning noise reduction device. Background Art

[0002] Air conditioning, also known as air conditioner, refers to a device that uses artificial means to partially or completely adjust the temperature, humidity, flow rate and cleanliness of the air in a closed space so that the air parameters of the target environment meet the requirements. It generally includes cold and heat source equipment, cold and hot medium systems, terminal devices and other auxiliary equipment, mainly including compressors, fans and piping systems.

[0003] During the operation of the air-conditioning system, the significant vibration noise generated by the outdoor unit is mainly due to the working characteristics of its internal heat dissipation fan. Specifically, when the fan blades implement forced convection heat dissipation on the condenser copper tube during rotation, the blade edges of the conventional design are in a cantilever support state and lack radial constraints. In addition, the periodic torque generated during unidirectional rotation cannot achieve self-balancing. This incompletely offset torque load is transmitted to the outdoor unit casing through the transmission mechanism, causing structural vibration. Among them, the combined effect of the flutter effect of the blade edges and the residual torque causes the casing to vibrate forcedly, forming broadband mechanical noise. This noise source becomes the main contributor to the vibration noise of the air-conditioning outdoor unit, thereby causing significant noise pollution to the indoor sound environment. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a ventilation and air-conditioning noise reduction device, which solves the problems mentioned in the above background.

[0005] The present invention provides the following technical solution: a ventilation and air conditioning noise reduction device, comprising: a torque balancing heat dissipation mechanism, the surface of the torque balancing heat dissipation mechanism is provided with a covering sound-absorbing mechanism, the inner wall of the air inlet side of the covering sound-absorbing mechanism is provided with a ventilation sound-absorbing mechanism, one side of the ventilation sound-absorbing mechanism is provided with an echo reflection mechanism, one side of the torque balancing heat dissipation mechanism is provided with a copper tube shock-absorbing mechanism, the inner wall of the exhaust side of the covering sound-absorbing mechanism is provided with a ventilation shock-absorbing mechanism, the torque balancing heat dissipation mechanism comprises a heat dissipation motor, an active inner shaft, a driven outer shaft, an active bevel gear, a transmission bevel gear, a heat dissipation fan blade, a radial anti-vibration ring and a driven bevel gear, the active inner shaft is fixedly mounted on the output end of the heat dissipation motor through a coupling The driven outer shaft is rotatably connected to the surface of the active inner shaft through a bearing, the active bevel gear is fixedly sleeved on the surface of the active inner shaft, the driven bevel gear is fixedly sleeved on the surface of the driven outer shaft, the transmission bevel gear is arranged between the active bevel gear and the driven bevel gear, the number of the heat dissipation fan blades is two, and the two heat dissipation fan blades are coaxially and reversely distributed, the radial anti-vibration rings are respectively integrally arranged on the edges of the two heat dissipation fan blades, the covering sound-absorbing mechanism includes an outer machine inner shell, a sound-absorbing sponge lining and a sound-absorbing sponge lining plate, the sound-absorbing sponge lining and the sound-absorbing sponge lining plate are covered on the surface of the outer machine inner shell, the echo reflection mechanism includes a reflection cover, and the reflection cover is fixedly installed inside the outer machine inner shell.

[0006] Preferably, the torque balancing heat dissipation mechanism also includes a first support frame, a second support frame, an air guide cylinder, a first sound-absorbing sponge sleeve, a first connecting seat and a first buffer pad, the number of the first connecting seats is four, and each two first connecting seats form a group, and the two groups of first connecting seats are fixedly connected to the inner wall of the outer machine inner shell, the first support frame and the second support frame are respectively fixedly installed between the two first connecting seats of each group, the first buffer pad is respectively fixedly connected to the surface of the first support frame and the surface of the second support frame, the air guide cylinder is fixedly connected between the first support frame and the second support frame, and the inner wall of the air guide cylinder is rotatably connected to the surfaces of the two radial anti-vibration rings through bearings, the heat dissipation motor is fixedly installed on one side of the first support frame, the surface of the active inner shaft is rotatably connected to the inner wall of the second support frame through bearings, the surface of the driven outer shaft is rotatably connected to the inner wall of the first support frame through bearings, and the first sound-absorbing sponge sleeve is fixedly sleeved on the surface of the air guide cylinder.

[0007] Preferably, the torque balancing heat dissipation mechanism also includes an internal frame of the docking column and a transmission shaft. There are two internal frames, and both internal frames are fixedly inserted into the inside of the air guide cylinder. The transmission shaft is rotatably connected to one end of the internal frame through a bearing. The transmission bevel gear is fixedly sleeved on one end of the transmission shaft, and the surface of the transmission bevel gear is respectively meshed with the surface of the driving bevel gear and the surface of the driven bevel gear, and the driving bevel gear and the driven bevel gear are connected through the transmission bevel gear.

[0008] Preferably, the wrapped sound-absorbing mechanism further includes an outer shell, an outer shell cover, a mounting seat and a buffer gasket, the outer shell is fixedly sleeved on the surface of the outer inner shell, the sound-absorbing sponge lining is located between the outer inner shell and the outer shell, the outer shell cover is fixedly covered on the upper surface of the outer shell, the sound-absorbing sponge lining is located between the outer shell cover and the outer inner shell, the mounting seat is fixedly connected to the lower surface of the outer shell, and the buffer gasket is fixedly fitted to the bottom of the mounting seat.

[0009] Preferably, the wrapped sound-absorbing mechanism further includes an inner shell main cover plate and an inner shell auxiliary cover plate, and a heat exchange chamber and a compression chamber are respectively provided inside the inner shell of the outer machine, and the inner walls of the heat exchange chamber are respectively fixedly connected to one side of the four first connecting seats, the inner shell main cover plate is fixedly connected to the inner wall of the heat exchange chamber, the inner shell auxiliary cover plate is fixedly connected to the inner wall of the compression chamber, and the reflector is located inside the heat exchange chamber.

[0010] Preferably, the ventilation and sound-absorbing mechanism includes an air inlet frame, a sound-absorbing sponge deflection plate, a bending hole and an air inlet protective net. The air inlet frame is fixedly connected to the inside of one side of the inner shell of the outer machine, the sound-absorbing sponge deflection plate is arranged inside the air inlet frame, the bending hole is penetrated and opened on the surface of the sound-absorbing sponge deflection plate, the number of the air inlet protective nets is two, and the two air inlet protective nets are fixedly connected to the inside of the air inlet frame, and the sound-absorbing sponge deflection plate is located between the two air inlet protective nets.

[0011] Preferably, the echo reflection mechanism further includes a second sound-absorbing sponge sleeve and a first buffer sleeve, the second sound-absorbing sponge sleeve is fixedly sleeved on the surface of the reflection cover, and the first buffer sleeve is fixedly connected between the second sound-absorbing sponge sleeve and the air inlet frame and the outer machine inner shell.

[0012] Preferably, the echo reflection mechanism further includes a diffusion cover and an intercepting tube, the diffusion cover is fixedly connected to one side of the reflection cover, and the inner surface of the diffusion cover and the inner surface of the reflection cover are both smooth curved surfaces, and the intercepting tube is integrally arranged in the middle of the reflection cover.

[0013] Preferably, the copper tube shock-absorbing mechanism includes a second connecting seat, a stabilizing frame, a second buffer pad, a heat exchange copper tube, a buffer sleeve and an anti-vibration heat sink. The number of the second connecting seats is two, and the two second connecting seats are fixedly connected to the inner wall of the outer machine inner shell. The stabilizing frame is fixedly connected between the two second connecting seats, the second buffer pad is fixedly connected between the stabilizing frame and the two second connecting seats, the heat exchange copper tube is fixedly inserted into the inside of the stabilizing frame, the buffer sleeve is fixedly connected between the heat exchange copper tube and the stabilizing frame, and the anti-vibration heat sink is fixedly sleeved on the surface of the heat exchange copper tube.

[0014] Preferably, the ventilation and shock absorption mechanism includes an exhaust frame, a sound-absorbing sponge straight-through plate, an exhaust protection net, and a second buffer sleeve. The exhaust frame is fixedly connected to the inside of the outer machine inner shell, and the sound-absorbing sponge straight-through plate is arranged inside the exhaust frame. There are two exhaust protection nets, and both exhaust protection nets are fixedly connected to the inside of the exhaust frame, and the sound-absorbing sponge straight-through plate is located between the exhaust protection nets. The second buffer sleeve is fixedly connected between the exhaust frame and the outer machine inner shell.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The ventilation and air-conditioning noise reduction device, through the torque balancing heat dissipation mechanism, the covering sound absorption mechanism, the ventilation sound absorption mechanism, the echo reflection mechanism, the copper tube shock absorption mechanism and the ventilation shock absorption mechanism, can, when in use, use the torque balancing heat dissipation mechanism to make the periodic torque generated when the two heat dissipation blades rotate self-balanced, thereby avoiding the torque load from being output outward, and the radial anti-vibration ring is provided as a support for the edge of the heat dissipation fan blade, thereby forming radial constraints on the heat dissipation fan blades, thereby reducing vibration noise.

[0016] The ventilation and air-conditioning noise reduction device, through the heat dissipation motor, active inner shaft, driven outer shaft, active bevel gear, transmission bevel gear, heat dissipation fan blades, radial anti-vibration ring, first support frame, second support frame, air guide cylinder, first sound-absorbing sponge sleeve, first connecting seat, first buffer pad, internal frame, transmission shaft and driven bevel gear, can form self-balancing when in use through the coaxially reversed heat dissipation fan blades to avoid the torque load being output outward, and use the radial anti-vibration ring to support and fix the edges of the heat dissipation fan blades to prevent them from forming radial vibration, thereby reducing the vibration noise source of the device.

[0017] The ventilation and air-conditioning noise reduction device, through the outer machine inner shell, sound-absorbing sponge lining, sound-absorbing sponge lining plate, outer machine outer shell, outer shell cover plate, mounting seat, buffer gasket, inner shell main cover plate and inner shell auxiliary cover plate, can form a large-scale sound-absorbing layer on the surface of the device through the sound-absorbing sponge lining and the sound-absorbing sponge lining plate, thereby absorbing and intercepting the external noise output of the device on a large scale.

[0018] The ventilation and air conditioning noise reduction device, through the set air inlet frame, sound-absorbing sponge refraction plate, bending hole and air inlet protection net, can ensure that the air inlet ball can smoothly pass through the bending hole during use, and can also intercept most of the noise output through the bending characteristics of the bending hole.

[0019] The ventilation and air conditioning noise reduction device, through the provided reflection cover, second sound-absorbing sponge cover, first buffer sleeve and diffusion cover, can reflect most of the noise transmitted toward the indoor direction of the device when in use, thereby ensuring the ventilation effect while reducing the amount of noise transmitted into the room.

[0020] The ventilation and air-conditioning noise reduction device, through the provision of a second connecting seat, a stabilizing frame, a second buffer pad, a heat exchange copper tube, a buffer sleeve and an anti-vibration heat sink, can effectively reinforce and buffer the heat exchange copper tube through the stabilizing frame and the buffer sleeve, thereby reducing the vibration generated by the heat exchange copper tube.

[0021] The ventilation and air-conditioning noise reduction device, through the provision of an exhaust frame, a sound-absorbing sponge straight-through plate, an exhaust protection net and a second buffer bushing, can use the sound-absorbing sponge straight-through plate as a support buffer between two exhaust protection nets to prevent the exhaust protection nets from vibrating and generating noise. At the same time, the sound-absorbing sponge straight-through plate absorbs part of the noise while ensuring that the airflow and a small amount of noise are discharged outward in a direction to prevent them from remaining inside the device and causing air resonance, thereby ensuring the indoor noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the inner shell of the outer machine of the present invention; Figure 3 It is a cross-sectional view of the present invention; Figure 4 This is a schematic structural diagram of the torque balancing heat dissipation mechanism of the present invention; Figure 5 This is a cross-sectional view of the torque balancing heat dissipation mechanism of the present invention; Figure 6 This is a schematic diagram of the explosion structure at the location of the ventilation and sound absorption mechanism of the present invention; Figure 7 This is a schematic diagram of the explosion structure at the location of the ventilation and shock absorption mechanism of the present invention; Figure 8 This is a schematic structural diagram of the copper tube shock absorbing mechanism of the present invention; Figure 9 This is a structural diagram of the gas guide cylinder of the present invention; Figure 10 This is a schematic diagram of the structure of the heat dissipation fan blades of the present invention; Figure 11 It is a structural schematic diagram of the active inner shaft position of the present invention.

[0023] In the figure: 101, heat dissipation motor; 102, driving inner shaft; 103, driven outer shaft; 104, driving bevel gear; 105, transmission bevel gear; 106, heat dissipation fan blade; 107, radial anti-vibration ring; 108, first support frame; 109, second support frame; 110, air guide cylinder; 111, first sound-absorbing sponge sleeve; 112, first connecting seat; 113, first buffer pad; 114, internal frame; 115, transmission shaft; 116, driven bevel gear; 201, outer shell; 202, sound-absorbing sponge lining; 203, sound-absorbing sponge lining board; 204, outer shell; 205, shell cover; 206, installation Seat; 207, cushioning gasket; 208, inner shell main cover; 209, inner shell auxiliary cover; 301, air inlet frame; 302, sound-absorbing sponge deflection plate; 303, bending hole; 304, air inlet protection net; 401, reflection cover; 402, second sound-absorbing sponge sleeve; 403, first cushioning bushing; 404, diffusion cover; 405, intercepting tube; 501, second connecting seat; 502, stabilizing frame; 503, second cushioning pad; 504, heat exchange copper tube; 505, cushioning sleeve; 506, anti-vibration heat sink; 601, exhaust frame; 602, sound-absorbing sponge straight-through plate; 603, exhaust protection net; 604, second cushioning bushing. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-11A ventilation and air conditioning noise reduction device includes: a torque balancing heat dissipation mechanism, a surface of the torque balancing heat dissipation mechanism is provided with a covering sound absorbing mechanism, an inner wall of the covering sound absorbing mechanism on the air inlet side is provided with a ventilation sound absorbing mechanism, one side of the ventilation sound absorbing mechanism is provided with an echo reflection mechanism, one side of the torque balancing heat dissipation mechanism is provided with a copper tube shock absorbing mechanism, the inner wall of the covering sound absorbing mechanism on the exhaust side is provided with a ventilation shock absorbing mechanism, the torque balancing heat dissipation mechanism includes a heat dissipation motor 101, an active inner shaft 102, a driven outer shaft 103, an active cone Gear 104, transmission bevel gear 105, heat dissipation fan blade 106, radial anti-vibration ring 107 and driven bevel gear 116, the active inner shaft 102 is fixedly mounted on the output end of the heat dissipation motor 101 through a coupling, the driven outer shaft 103 is rotatably connected to the surface of the active inner shaft 102 through a bearing, the active bevel gear 104 is fixedly sleeved on the surface of the active inner shaft 102, the driven bevel gear 116 is fixedly sleeved on the surface of the driven outer shaft 103, and the transmission bevel gear 105 is arranged between the active bevel gear 104 and the driven bevel gear 116. There are two heat dissipation blades 106 between the bevel gears 116, and the two heat dissipation blades 106 are coaxially and reversely distributed. The radial anti-vibration rings 107 are respectively integrally arranged on the edges of the two heat dissipation blades 106. The covering sound-absorbing mechanism includes an outer machine inner shell 201, a sound-absorbing sponge lining 202 and a sound-absorbing sponge lining plate 203. The sound-absorbing sponge lining 202 and the sound-absorbing sponge lining plate 203 are covered on the surface of the outer machine inner shell 201. The echo reflection mechanism includes a reflection cover 401, and the reflection cover 401 is fixedly installed inside the outer machine inner shell 201. Through the torque balancing heat dissipation mechanism, the covering sound absorption mechanism, the ventilation sound absorption mechanism, the echo reflection mechanism, the copper tube shock absorption mechanism and the ventilation shock absorption mechanism, the periodic torque generated when the two heat dissipation blades 106 rotate can be self-balanced through the torque balancing heat dissipation mechanism during use, thereby avoiding the torque load from being output outward, and the radial anti-vibration rings 107 are used as supports for the edges of the heat dissipation blades 106 to form radial constraints on the heat dissipation blades 106, thereby reducing vibration noise.

[0026] Among them, the torque balancing heat dissipation mechanism also includes a first support frame 108, a second support frame 109, an air guide 110, a first sound-absorbing sponge cover 111, a first connecting seat 112 and a first buffer pad 113. The number of the first connecting seats 112 is four, and every two first connecting seats 112 form a group, and the two groups of first connecting seats 112 are fixedly connected to the inner wall of the outer machine inner shell 201. The first support frame 108 and the second support frame 109 are respectively fixedly installed between the two first connecting seats 112 of each group, and the first buffer pad 113 is respectively fixedly connected to the surface of the first support frame 108. The surface of the first support frame 108 and the surface of the second support frame 109, the air guide cylinder 110 is fixedly connected between the first support frame 108 and the second support frame 109, and the inner wall of the air guide cylinder 110 is rotatably connected to the surfaces of the two radial anti-vibration rings 107 through bearings, the heat dissipation motor 101 is fixedly installed on one side of the first support frame 108, the surface of the active inner shaft 102 is rotatably connected to the inner wall of the second support frame 109 through bearings, the surface of the driven outer shaft 103 is rotatably connected to the inner wall of the first support frame 108 through bearings, and the first sound-absorbing sponge cover 111 is fixedly sleeved on the surface of the air guide cylinder 110.

[0027] Among them; the torque balancing heat dissipation mechanism also includes a docking column internal frame 114 and a transmission shaft 115, the number of the internal frames 114 is two, and the two internal frames 114 are fixedly inserted into the interior of the air guide cylinder 110, the transmission shaft 115 is rotatably connected to one end of the internal frame 114 through a bearing, the transmission bevel gear 105 is fixedly sleeved on one end of the transmission shaft 115, and the surface of the transmission bevel gear 105 is respectively meshed with the surface of the active bevel gear 104 and the surface of the driven bevel gear 116, and the active bevel gear 104 and the driven bevel gear 116 are connected by transmission through the transmission bevel gear 105, through the heat dissipation motor 101, the active internal frame 114 and the transmission shaft 115. The shaft 102, the driven outer shaft 103, the driving bevel gear 104, the transmission bevel gear 105, the heat dissipation fan blades 106, the radial anti-vibration ring 107, the first support frame 108, the second support frame 109, the air guide cylinder 110, the first sound-absorbing sponge sleeve 111, the first connecting seat 112, the first buffer pad 113, the internal frame 114, the transmission shaft 115 and the driven bevel gear 116 can form self-balancing when in use through the coaxially reversed heat dissipation fan blades 106 to avoid the torque load from being output outward, and the radial anti-vibration ring 107 is used to support and fix the edges of the heat dissipation fan blades 106 to avoid radial vibration, thereby reducing the source of vibration noise of the device.

[0028] Among them, the wrapped sound-absorbing mechanism also includes an outer shell 204, an outer shell cover 205, a mounting seat 206 and a buffer gasket 207. The outer shell 204 is fixedly sleeved on the surface of the outer inner shell 201, the sound-absorbing sponge lining 202 is located between the outer inner shell 201 and the outer shell 204, the outer shell cover 205 is fixedly covered on the upper surface of the outer shell 204, the sound-absorbing sponge lining 203 is located between the outer shell cover 205 and the outer inner shell 201, the mounting seat 206 is fixedly connected to the lower surface of the outer shell 204, and the buffer gasket 207 is fixedly attached to the bottom of the mounting seat 206.

[0029] Among them; the wrapped sound-absorbing mechanism also includes an inner shell main cover plate 208 and an inner shell auxiliary cover plate 209, and the interior of the outer machine inner shell 201 is respectively provided with a heat exchange chamber and a compression chamber, and the inner wall of the heat exchange chamber is fixedly connected to one side of the four first connecting seats 112, the inner shell main cover plate 208 is fixedly connected to the inner wall of the heat exchange chamber, and the inner shell auxiliary cover plate 209 is fixedly connected to the inner wall of the compression chamber. The reflective cover 401 is located inside the heat exchange chamber, and through the outer machine inner shell 201, the sound-absorbing sponge lining 202, the sound-absorbing sponge lining plate 203, the outer machine outer shell 204, the outer shell cover plate 205, the mounting seat 206, the buffer gasket 207, the inner shell main cover plate 208 and the inner shell auxiliary cover plate 209, a large-scale sound-absorbing layer can be formed on the surface of the device through the sound-absorbing sponge lining 202 and the sound-absorbing sponge lining plate 203, thereby absorbing and intercepting the noise output of the device to the outside.

[0030] Among them; the ventilation and sound absorption mechanism includes an air inlet frame 301, a sound-absorbing sponge deflection plate 302, a bending hole 303 and an air inlet protection net 304, the air inlet frame 301 is fixedly connected to the inside of one side of the outer machine inner shell 201, the sound-absorbing sponge deflection plate 302 is arranged inside the air inlet frame 301, the bending hole 303 runs through the surface of the sound-absorbing sponge deflection plate 302, the number of the air inlet protection nets 304 is two, and the two air inlet protection nets 304 are fixedly connected to the inside of the air inlet frame 301, and the sound-absorbing sponge deflection plate 302 is located between the two air inlet protection nets 304, through the set air inlet frame 301, the sound-absorbing sponge deflection plate 302, the bending hole 303 and the air inlet protection net 304, it can ensure that the air inlet ball can smoothly pass through the bending hole 303 during use, and can also intercept most of the noise output through the bending characteristics of the bending hole 303.

[0031] Among them; the echo reflection mechanism also includes a second sound-absorbing sponge cover 402 and a first buffer sleeve 403. The second sound-absorbing sponge cover 402 is fixedly sleeved on the surface of the reflector 401, and the first buffer sleeve 403 is fixedly connected between the second sound-absorbing sponge cover 402 and the air inlet frame 301 and the outer machine inner shell 201.

[0032] Among them, the echo reflection mechanism also includes a diffusion cover 404 and an intercepting tube 405. The diffusion cover 404 is fixedly connected to one side of the reflection cover 401, and the inner surface of the diffusion cover 404 and the inner surface of the reflection cover 401 are both smooth curved surfaces. The intercepting tube 405 is integrally arranged in the middle of the reflection cover 401. Through the arranged reflection cover 401, the second sound-absorbing sponge cover 402, the first buffer sleeve 403 and the diffusion cover 404, most of the noise propagated toward the indoor direction of the device can be reflected when in use, thereby ensuring the ventilation effect while reducing the amount of noise propagated into the room.

[0033] Among them; the copper tube shock absorption mechanism includes a second connecting seat 501, a stable frame 502, a second buffer pad 503, a heat exchange copper tube 504, a buffer sleeve 505 and an anti-vibration heat sink 506, the number of the second connecting seat 501 is two, and the two second connecting seats 501 are fixedly connected to the inner wall of the outer machine inner shell 201, the stable frame 502 is fixedly connected between the two second connecting seats 501, the second buffer pad 503 is fixedly connected between the stable frame 502 and the two second connecting seats 501, the heat exchange copper tube 504 is fixed Inserted into the inside of the stabilizing frame 502, the buffer sleeve 505 is fixedly connected between the heat exchange copper tube 504 and the stabilizing frame 502, and the anti-vibration heat sink 506 is fixedly sleeved on the surface of the heat exchange copper tube 504. Through the arrangement of the second connecting seat 501, the stabilizing frame 502, the second buffer pad 503, the heat exchange copper tube 504, the buffer sleeve 505 and the anti-vibration heat sink 506, the heat exchange copper tube 504 can be reinforced and buffered by the stabilizing frame 502 and the buffer sleeve 505, thereby reducing the vibration generated by the heat exchange copper tube 504.

[0034] Among them, the ventilation and shock absorption mechanism includes an exhaust frame 601, a sound-absorbing sponge straight-through plate 602, an exhaust protection net 603, and a second buffer bushing 604. The exhaust frame 601 is fixedly connected to the inside of the outer inner shell 201, the sound-absorbing sponge straight-through plate 602 is arranged inside the exhaust frame 601, the number of exhaust protection nets 603 is two, and the two exhaust protection nets 603 are fixedly connected to the inside of the exhaust frame 601, and the sound-absorbing sponge straight-through plate 602 is located between the exhaust protection nets 603, the second buffer bushing 604 is fixedly connected to the exhaust Between the wind frame 601 and the outer machine inner shell 201, the exhaust frame 601, the sound-absorbing sponge straight-through plate 602, the exhaust protection net 603 and the second buffer sleeve 604 are arranged. The sound-absorbing sponge straight-through plate 602 can be used as a support buffer between the two exhaust protection nets 603 to prevent the exhaust protection net 603 from vibrating and generating noise. At the same time, the sound-absorbing sponge straight-through plate 602 absorbs part of the noise while ensuring that the airflow and a small amount of noise are discharged in a direction outward to prevent them from remaining inside the device and causing air resonance, thereby ensuring the noise reduction effect in the room.

[0035] Working principle: During use, the heat dissipation motor 101 drives the active inner shaft 102 to rotate. The active inner shaft 102 drives the transmission bevel gear 105 through the active bevel gear 104 on the surface. The transmission bevel gear 105 drives the driven bevel gear 116 to reverse coaxially with the active bevel gear 104, causing the two heat dissipation blades 106 to reverse coaxially, thereby balancing the periodic torque generated by the rotation of the two, preventing the torque load from being transmitted outward, and reducing vibration noise. The radial anti-vibration ring 107 serves as a support for the edge of the heat dissipation blade 106, providing radial constraints, further reducing the vibration noise of the heat dissipation blade 106. The buffer sleeve 505 acts as a buffer between the stabilizing frame 502 and the heat exchange copper tube 504, and the second buffer pad 503 acts as a buffer between the stabilizing frame 502 and the second connecting seat 501, reducing the vibration noise of the heat exchange copper tube 504, thereby reducing the noise of the vibration source; Among the remaining vibration source noise and the noise transmitted outward by the compressor, the sound-absorbing sponge lining 202 and the sound-absorbing sponge lining plate 203 form a covering sound-absorbing structure, which limits the noise to the air flow channel and the mechanical transmission path. The air inlet end of the air flow channel is ventilated through the bent hole 303, allowing the intake air to enter normally. When the airborne noise propagates along the air flow channel: Most of the noise will first be reflected and intercepted by the reflector 401 and the interceptor tube 405; A small amount of noise passes through the interceptor tube 405 and is diffused by the diffusion cover 404; Most of the remaining noise will be absorbed by the sound-absorbing sponge refraction plate 302, and a small part will be absorbed when passing through the bending hole 303; The second sound-absorbing sponge cover 402 absorbs the mechanical vibration generated by the reflective cover 401 and the diffuser cover 404 to prevent noise from propagating; This reduces the noise on the air inlet side of the device facing away from the room to a very low level; The exhaust end of the airflow channel uses a sound-absorbing sponge straight-through plate 602 for exhaust. The mechanical vibration of the two exhaust protection nets 603 will be absorbed by the sound-absorbing sponge straight-through plate 602, and most of the noise that passes through the sound-absorbing sponge straight-through plate 602 will also be absorbed. A small amount of noise is directly discharged from the sound-absorbing sponge straight-through plate 602, so that the noise is released in a targeted manner, avoiding it from remaining inside the device and causing air resonance, ensuring the noise reduction effect in the back room, thereby absorbing and releasing the noise in the output path of the airflow channel in a targeted manner. The buffer pad 207 serves as an absorption and buffering structure to reduce the vibration transmitted outward by the mechanical transmission and prevent the noise from being transmitted into the room through the building.

[0036] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A ventilation and air conditioning noise reduction device, characterized in that: include: A torque balancing heat dissipation mechanism, wherein the surface of the torque balancing heat dissipation mechanism is provided with a covering sound-absorbing mechanism, the inner wall of the covering sound-absorbing mechanism on the air inlet side is provided with a ventilation sound-absorbing mechanism, one side of the ventilation sound-absorbing mechanism is provided with an echo reflection mechanism, one side of the torque balancing heat dissipation mechanism is provided with a copper tube shock-absorbing mechanism, and the inner wall of the covering sound-absorbing mechanism on the air outlet side is provided with a ventilation shock-absorbing mechanism; The torque balancing heat dissipation mechanism comprises a heat dissipation motor (101), an active inner shaft (102), a driven outer shaft (103), an active bevel gear (104), a transmission bevel gear (105), a heat dissipation fan blade (106), a radial anti-vibration ring (107) and a driven bevel gear (116), wherein the active inner shaft (102) is fixedly mounted on the output end of the heat dissipation motor (101) through a coupling, the driven outer shaft (103) is rotatably connected to the surface of the active inner shaft (102) through a bearing, the active bevel gear (104) is fixedly sleeved on the surface of the active inner shaft (102), the driven bevel gear (116) is fixedly sleeved on the surface of the driven outer shaft (103), and the transmission bevel gear (105) is fixedly sleeved on the surface of the driven outer shaft (103). ) is arranged between the active bevel gear (104) and the driven bevel gear (116), the number of the heat dissipation fan blades (106) is two, and the two heat dissipation fan blades (106) are coaxially and counter-rotatingly distributed, the radial anti-vibration rings (107) are respectively and integrally arranged on the edges of the two heat dissipation fan blades (106), the covering sound absorption mechanism comprises an outer machine inner shell (201), a sound-absorbing sponge lining (202) and a sound-absorbing sponge lining board (203), the sound-absorbing sponge lining (202) and the sound-absorbing sponge lining board (203) covering the surface of the outer machine inner shell (201), the echo reflection mechanism comprises a reflection cover (401), and the reflection cover (401) is fixedly installed inside the outer machine inner shell (201).

2. A ventilation and air conditioning noise reduction device according to claim 1, characterized in that: The torque balancing heat dissipation mechanism further comprises a first support frame (108), a second support frame (109), an air guide cylinder (110), a first sound-absorbing sponge sleeve (111), a first connecting seat (112) and a first buffer pad (113), wherein the number of the first connecting seats (112) is four, and each two first connecting seats (112) form a group, and the two groups of first connecting seats (112) are fixedly connected to the inner wall of the outer machine inner shell (201), the first support frame (108) and the second support frame (109) are respectively fixedly installed between the two first connecting seats (112) of each group, and the first buffer pad (113) is respectively fixedly connected to the surface of the first support frame (108). The surface of the first support frame (108) and the surface of the second support frame (109), the air guide cylinder (110) is fixedly connected between the first support frame (108) and the second support frame (109), and the inner wall of the air guide cylinder (110) is rotatably connected to the surfaces of the two radial anti-vibration rings (107) through bearings, the heat dissipation motor (101) is fixedly installed on one side of the first support frame (108), the surface of the active inner shaft (102) is rotatably connected to the inner wall of the second support frame (109) through bearings, the surface of the driven outer shaft (103) is rotatably connected to the inner wall of the first support frame (108) through bearings, and the first sound-absorbing sponge sleeve (111) is fixedly sleeved on the surface of the air guide cylinder (110).

3. A ventilation and air conditioning noise reduction device according to claim 2, characterized in that: The torque balancing heat dissipation mechanism further comprises a docking column internal frame (114) and a transmission shaft (115), wherein the number of the internal frames (114) is two, and the two internal frames (114) are fixedly inserted into the interior of the air guide cylinder (110), the transmission shaft (115) is rotatably connected to one end of the internal frame (114) via a bearing, the transmission bevel gear (105) is fixedly sleeved on one end of the transmission shaft (115), and the surface of the transmission bevel gear (105) is respectively meshed with the surface of the driving bevel gear (104) and the surface of the driven bevel gear (116), and the driving bevel gear (104) and the driven bevel gear (116) are transmission-connected via the transmission bevel gear (105).

4. A ventilation and air conditioning noise reduction device according to claim 1, characterized in that: The wrapped sound-absorbing mechanism further comprises an outer shell (204), an outer shell cover (205), a mounting seat (206) and a buffer gasket (207); the outer shell (204) is fixedly sleeved on the surface of the outer shell (201); the sound-absorbing sponge lining (202) is located between the outer shell (201) and the outer shell (204); the outer shell cover (205) is fixedly covered on the upper surface of the outer shell (204); the sound-absorbing sponge lining (203) is located between the outer shell cover (205) and the outer shell (201); the mounting seat (206) is fixedly connected to the lower surface of the outer shell (204); and the buffer gasket (207) is fixedly attached to the bottom of the mounting seat (206).

5. A ventilation and air conditioning noise reduction device according to claim 4, characterized in that: The wrapped sound-absorbing mechanism further comprises an inner shell main cover plate (208) and an inner shell auxiliary cover plate (209); a heat exchange chamber and a compression chamber are respectively provided inside the outer machine inner shell (201); the inner wall of the heat exchange chamber is fixedly connected to one side of each of the four first connecting seats (112); the inner shell main cover plate (208) is fixedly connected to the inner wall of the heat exchange chamber; the inner shell auxiliary cover plate (209) is fixedly connected to the inner wall of the compression chamber; and the reflector (401) is located inside the heat exchange chamber.

6. The ventilation and air conditioning noise reduction device according to claim 1, characterized in that: The ventilation and sound absorption mechanism comprises an air inlet frame (301), a sound-absorbing sponge deflection plate (302), a bending hole (303) and an air inlet protection net (304); the air inlet frame (301) is fixedly connected to the inside of one side of the outer machine inner shell (201); the sound-absorbing sponge deflection plate (302) is arranged inside the air inlet frame (301); the bending hole (303) is penetrated and opened on the surface of the sound-absorbing sponge deflection plate (302); the number of the air inlet protection nets (304) is two, and the two air inlet protection nets (304) are both fixedly connected to the inside of the air inlet frame (301), and the sound-absorbing sponge deflection plate (302) is located between the two air inlet protection nets (304).

7. A ventilation and air conditioning noise reduction device according to claim 6, characterized in that: The echo reflection mechanism further comprises a second sound-absorbing sponge sleeve (402) and a first buffer sleeve (403), wherein the second sound-absorbing sponge sleeve (402) is fixedly sleeved on the surface of the reflection cover (401), and the first buffer sleeve (403) is fixedly connected between the second sound-absorbing sponge sleeve (402) and the air inlet frame (301) and the outer machine inner shell (201).

8. The ventilation and air conditioning noise reduction device according to claim 1, characterized in that: The echo reflection mechanism further comprises a diffusion cover (404) and an intercepting tube (405); the diffusion cover (404) is fixedly connected to one side of the reflection cover (401); the inner surface of the diffusion cover (404) and the inner surface of the reflection cover (401) are both smooth curved surfaces; the intercepting tube (405) is integrally arranged in the middle of the reflection cover (401).

9. The ventilation and air conditioning noise reduction device according to claim 1, characterized in that: The copper tube shock-absorbing mechanism comprises a second connecting seat (501), a stabilizing frame (502), a second buffer pad (503), a heat exchange copper tube (504), a buffer sleeve (505) and an anti-vibration heat sink (506). The number of the second connecting seats (501) is two, and the two second connecting seats (501) are fixedly connected to the inner wall of the outer machine inner shell (201). The stabilizing frame (502) is fixedly connected between the two second connecting seats (501). The second buffer pad (503) is fixedly connected between the stabilizing frame (502) and the two second connecting seats (501). The heat exchange copper tube (504) is fixedly plugged into the inside of the stabilizing frame (502). The buffer sleeve (505) is fixedly connected between the heat exchange copper tube (504) and the stabilizing frame (502). The anti-vibration heat sink (506) is fixedly sleeved on the surface of the heat exchange copper tube (504).

10. The ventilation and air conditioning noise reduction device according to claim 1, characterized in that: The ventilation and shock absorption mechanism comprises an exhaust frame (601), a sound-absorbing sponge straight-through plate (602), an exhaust protection net (603), and a second buffer sleeve (604); the exhaust frame (601) is fixedly connected to the interior of the outer machine inner shell (201); the sound-absorbing sponge straight-through plate (602) is arranged inside the exhaust frame (601); there are two exhaust protection nets (603), and both exhaust protection nets (603) are fixedly connected to the interior of the exhaust frame (601); the sound-absorbing sponge straight-through plate (602) is located between the exhaust protection nets (603); and the second buffer sleeve (604) is fixedly connected between the exhaust frame (601) and the outer machine inner shell (201).

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