Central air conditioner air outlet device with noise reduction function

Abstract

The utility model relates to the technical field of central air conditioners, and discloses a central air conditioner air outlet device with a noise reduction function, which comprises a mounting frame and a mounting piece, and a noise reduction mechanism is arranged on the side surface of the mounting frame; the noise reduction mechanism comprises a fixing sleeve. When vortex is generated in the air outlet of the central air conditioner and noise is large, a servo motor is started to drive a first connecting rod to rotate, drive a first gear to rotate, drive a rack belt to rotate and drive a second gear and a second connecting rod to rotate; a first adjusting plate and a second adjusting plate which are mounted on the side faces of a first connecting rod and a second connecting rod are driven to conduct angle deflection, the flowing direction of cold air above an air outlet is adjusted, then vortexes are reduced or damaged, noise is reduced or eliminated, a small part of noise can be absorbed through sound absorption cotton, noise generation is reduced again, and the noise reduction effect is improved. The problem that noise of an air outlet is large due to the internal vortex effect of a traditional central air conditioner can be solved, and the practicability and the use scene of the central air conditioner are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of central air conditioners, and particularly relates to a central air conditioner air outlet device with a noise reduction function. Background Technique

[0002] The central air conditioning system is composed of one or more cold and heat source systems and multiple air conditioning systems. Different from traditional refrigerant air conditioners, this system centrally processes air to meet comfort requirements. The principle of liquid gasification refrigeration is used to provide the required cooling capacity for the air conditioning system to offset the heat load of the indoor environment; the heating system provides the required heat for the air conditioning system to offset the cooling and heating loads of the indoor environment.

[0003] In household central air conditioners, we can often see a hollow grid at the ceiling. This grid is the so-called central air conditioner air outlet. The central air conditioner air outlet is the terminal device for air supply and return air in the central air conditioning system and is an air distribution device. The air supply outlet sends the cooled or heated air into the room, while the return air outlet sucks back the dirty air in the room. The two form a complete air cycle, ensuring both the indoor cooling and heating effects and the cooling and comfort of the indoor air.

[0004] When the existing central air conditioner is in use, due to the unreasonable setting of the internal air supply structure, the air outlet of the air conditioner will generate relatively large noise due to eddy currents and cannot be effectively eliminated.

[0005] Therefore, it is necessary to provide a central air conditioner air outlet device with a noise reduction function. Content of the Utility Model

[0006] The purpose of the utility model is to provide a central air conditioner air outlet device with a noise reduction function to solve the problem that when the existing central air conditioner is in use, due to the unreasonable setting of the internal air supply structure, the air outlet of the air conditioner will generate relatively large noise due to eddy currents and cannot be effectively eliminated as mentioned in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solution: A central air-conditioning air outlet device with a noise reduction function, comprising an installation frame and an installation member, wherein a noise reduction mechanism is provided on the side of the installation frame; the noise reduction mechanism includes a fixed sleeve, the side of the fixed sleeve is fixedly connected to the inner wall of the installation member, a servo motor is fixedly installed on the inner wall of the fixed sleeve, the transmission rod of the servo motor penetrates through the installation member and extends to the side of the installation member, a first connecting rod is fixedly installed on the end face of the transmission rod of the servo motor, a first gear is fixedly installed on the side of the first connecting rod, a rack belt is meshed and installed on the tooth surface of the first gear, a first adjusting plate is fixedly installed on the side of the first connecting rod, a second connecting rod is rotatably installed on the side of the installation member through a bearing seat, a second gear is fixedly installed on the side of the second connecting rod, the tooth surface of the second gear is meshed and connected to the tooth surface of the rack belt, and a second adjusting plate is fixedly installed on the side of the second connecting rod.

[0008] Preferably, a housing is fixedly installed on the side of the installation member, a sound-absorbing cotton is fixedly installed on the inner wall of the housing, a through hole is fixedly opened on the bottom end face of the installation frame, a diversion cover is fixedly installed on the inner wall of the through hole, and the number of the noise reduction mechanisms is four, which are respectively installed on the four sides of the installation member.

[0009] Preferably, the top end face of the installation frame is fixedly connected to the bottom end face of the installation member, a heat dissipation hole is fixedly opened on the side of the installation member, an inner frame is fixedly installed on the inner wall of the installation frame, a grid plate is fixedly installed on the inner wall of the inner frame, through holes are fixedly opened on the inner wall of the grid plate, and a flow distribution component is fixedly installed on the inner wall of the through holes.

[0010] Preferably, an air hood is fixedly installed on the top end face of the installation member, an air inlet is fixedly installed on the top end face of the air hood, and the inner wall of the air hood is meshed and connected to the side of the flow distribution component.

[0011] Preferably, a display screen is fixedly installed on the bottom end face of the flow distribution component, and the flow distribution component divides the interior of the air hood into four parts with equal volumes.

[0012] Preferably, a hoisting component is fixedly installed on the top end face of the installation member, and the number of the hoisting components is four groups, which are respectively installed at the four corners of the top surface of the installation member.

[0013] Preferably, an air inlet channel is fixedly opened on the side of the installation member, and the position of the air inlet channel corresponds to that of the first connecting rod.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1) When there is a large amount of noise caused by eddy currents inside the central air-conditioning air outlet of this central air-conditioning air outlet device with noise reduction function, turn on the servo motor, drive the first connecting rod to rotate, drive the first gear to rotate, drive the rack belt to drive, drive the second gear and the second connecting rod to rotate, drive the first adjusting plate and the second adjusting plate installed on the sides of the first connecting rod and the second connecting rod to deflect at an angle, adjust the flow direction of the cold air above the air outlet, thereby reducing or destroying the eddy currents, and then reducing or eliminating the noise. Moreover, a small part of the noise can be absorbed by the sound-absorbing cotton, further reducing the generation of noise. It can solve the problem of large noise at the air outlet caused by the eddy current effect inside the traditional central air-conditioning, and improve the practicability and usage scenarios of this central air-conditioning.

[0016] 2) For this central air-conditioning air outlet device with noise reduction function, the cold air is introduced into the air inlet through the remote control and the display screen and enters the inside of the air hood. The cold air is divided into four parts by the flow splitting component installed inside the air hood to prevent the cold air from directly hitting the air outlet and the grille board, resulting in noise generation. And the side of the eddy current component facing the air inlet is arc-shaped, which can reduce the wind resistance and make the cold air enter more smoothly. Moreover, it can guide the cold air through the air outlet, reduce the eddy currents, and then reduce the noise. The noise elimination rate is high and the applicable range is wide. When hoisting, this central air-conditioning can be hoisted on the roof through the hoisting component, and the installation is convenient and fast, with high practicability. Description of the Drawings

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a central air-conditioning air outlet device with noise reduction function in an embodiment of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the hoisting component in an embodiment of the present invention;

[0019] Figure 3 It is a sectional structural schematic diagram of the air hood in an embodiment of the present invention;

[0020] Figure 4 It is a sectional structural schematic diagram of the mounting part in an embodiment of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the servo motor in an embodiment of the present invention;

[0022] Figure 6 It is a partial structural schematic diagram of the noise reduction mechanism in an embodiment of the present invention.

[0023] In the figure: 1, mounting frame; 2, inner frame; 3, grid plate; 4, mounting member; 5, noise reduction mechanism; 501, fixed sleeve; 502, servo motor; 503, first connecting rod; 504, first gear; 505, first adjusting plate; 506, rack belt; 507, second connecting rod; 508, second gear; 509, second adjusting plate; 510, housing; 511, sound-absorbing cotton; 512, flow guide cover; 6, heat dissipation holes; 7, air hood; 8, air inlet; 9, flow splitting assembly; 10, hoisting assembly; 11, display screen. Specific implementation mode

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1

[0026] Combined with Figures 1-6 , a central air-conditioning air outlet device with a noise reduction function includes a mounting frame 1 and a mounting member 4, and a noise reduction mechanism 5 is arranged on the side of the mounting frame 1; the noise reduction mechanism 5 includes a fixed sleeve 501, the side of the fixed sleeve 501 is fixedly connected to the inner wall of the mounting member 4, a servo motor 502 is fixedly installed on the inner wall of the fixed sleeve 501, the transmission rod of the servo motor 502 penetrates through the mounting member 4 and extends to the side of the mounting member 4, a first connecting rod 503 is fixedly installed on the end face of the transmission rod of the servo motor 502, a first gear 504 is fixedly installed on the side of the first connecting rod 503, a rack belt 506 is meshed and installed on the tooth surface of the first gear 504, a first adjusting plate 505 is fixedly installed on the side of the first connecting rod 503, a second connecting rod 507 is rotatably installed on the side of the mounting member 4 through a bearing seat, a second gear 508 is fixedly installed on the side of the second connecting rod 507, the tooth surface of the second gear 508 is meshed and connected to the tooth surface of the rack belt 506, a second adjusting plate 509 is fixedly installed on the side of the second connecting rod 507, a housing 510 is fixedly installed on the side of the mounting member 4, a sound-absorbing cotton 511 is fixedly installed on the inner wall of the housing 510, a through hole is fixedly opened on the bottom end face of the mounting frame 1, a flow guide cover 512 is fixedly installed on the inner wall of the through hole, and the number of the noise reduction mechanisms 5 is four, which are respectively installed on the four sides of the mounting member 4;

[0027] Specifically, when the noise of the central air-conditioning air outlet is relatively large, first, the size of the air intake volume inside the air inlet 8 is adjusted through the remote control, so that the eddy current reaction inside the air hood 7 is reduced or eliminated. Then, the servo motor 502 is turned on to drive the first connecting rod 503 to rotate, drive the first gear 504 to rotate, and further drive the rack belt 506 to drive, drive the second gear 508 and the second connecting rod 507 to rotate, and further drive the first adjusting plate 505 and the second adjusting plate 509 installed on the sides of the first connecting rod 503 and the second connecting rod 507 to deflect at an angle, adjust the flow direction of the cold air above the air outlet, and thus reduce the noise generated by the eddy current reaction. Moreover, a small part of the noise can be absorbed by the sound-absorbing cotton 511 to further reduce the generation of noise.

[0028] Embodiment 2

[0029] Refer to Figures 1-6 , it can be further obtained that the top surface of the installation frame 1 is fixedly connected to the bottom surface of the installation part 4. Heat dissipation holes 6 are fixedly formed on the side surface of the installation part 4. An inner frame 2 is fixedly installed on the inner wall of the installation frame 1. A grid plate 3 is fixedly installed on the inner wall of the inner frame 2. Through holes are fixedly formed on the inner wall of the grid plate 3. A flow dividing component 9 is fixedly installed on the inner wall of the through hole. The top surface of the installation part 4 is fixedly installed with an air hood 7. The top surface of the air hood 7 is fixedly installed with an air inlet 8. The inner wall of the air hood 7 is meshed and connected to the side surface of the flow dividing component 9. A display screen 11 is fixedly installed on the bottom surface of the flow dividing component 9. The flow dividing component 9 divides the inside of the air hood 7 into four parts with equal volumes. The top surface of the installation part 4 is fixedly installed with a hoisting component 10. The number of the hoisting components 10 is four groups, which are respectively installed at the four corners of the top surface of the installation part 4. Air inlet channels are fixedly formed on the side surface of the installation part 4. The position of the air inlet channel corresponds to that of the first connecting rod 503;

[0030] Specifically, cold air is introduced into the air inlet 8 through the remote control and the display screen 11 and enters the inside of the air hood 7. The cold air is divided into four parts by the flow dividing component 9 installed inside the air hood 7 to prevent the cold air from directly hitting the air outlet and the grid plate 3, resulting in noise generation. Moreover, the side of the flow dividing component 9 facing the air inlet 8 is arc-shaped, which can reduce the wind resistance and make the cold air enter more smoothly. In addition, it can guide the cold air through the air outlet, reduce the eddy current, and thus reduce the noise. During hoisting, the central air conditioner can be hoisted on the roof through the hoisting component 10, which is convenient and fast for installation.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to the embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A central air-conditioning air outlet device with a noise reduction function, comprising an installation frame (1) and an installation member (4), characterized in that: A noise reduction mechanism (5) is provided on the side of the installation frame (1); The noise reduction mechanism (5) includes a fixed sleeve (501). The side of the fixed sleeve (501) is fixedly connected to the inner wall of the installation part (4). A servo motor (502) is fixedly installed on the inner wall of the fixed sleeve (501). The transmission rod of the servo motor (502) penetrates through the installation part (4) and extends to the side of the installation part (4). A first connecting rod (503) is fixedly installed on the end face of the transmission rod of the servo motor (502). A first gear (504) is fixedly installed on the side of the first connecting rod (503). A rack belt (506) is meshed with the tooth surface of the first gear (504). A first adjusting plate (505) is fixedly installed on the side of the first connecting rod (503). A second connecting rod (507) is rotatably installed on the side of the installation part (4) through a bearing seat. A second gear (508) is fixedly installed on the side of the second connecting rod (507). The tooth surface of the second gear (508) is meshed with the tooth surface of the rack belt (506). A second adjusting plate (509) is fixedly installed on the side of the second connecting rod (507).

2. The central air-conditioning air outlet device with a noise reduction function according to claim 1, characterized in that: A housing (510) is fixedly installed on the side of the installation part (4). A sound-absorbing cotton (511) is fixedly installed on the inner wall of the housing (510). A through hole is fixedly opened at the bottom end surface of the installation frame (1). A flow guide cover (512) is fixedly installed on the inner wall of the through hole. The number of the noise reduction mechanisms (5) is four, which are respectively installed on the four sides of the installation part (4).

3. The central air-conditioning air outlet device with a noise reduction function according to claim 1, characterized in that: The top end surface of the installation frame (1) is fixedly connected to the bottom end surface of the installation part (4). A heat dissipation hole (6) is fixedly opened on the side of the installation part (4). An inner frame (2) is fixedly installed on the inner wall of the installation frame (1). A grid plate (3) is fixedly installed on the inner wall of the inner frame (2). Through holes are fixedly opened on the inner wall of the grid plate (3). A flow splitting component (9) is fixedly installed on the inner wall of the through holes.

4. The central air-conditioning air outlet device with a noise reduction function according to claim 1, characterized in that: An air hood (7) is fixedly installed on the top end surface of the installation part (4). An air inlet (8) is fixedly installed on the top end surface of the air hood (7). The inner wall of the air hood (7) is meshed with the side of the flow splitting component (9).

5. The central air-conditioning air outlet device with a noise reduction function according to claim 3, characterized in that: A display screen (11) is fixedly installed on the bottom end surface of the flow splitting component (9). The flow splitting component (9) divides the inner part of the air hood (7) into four parts with equal volumes.

6. The central air-conditioning air outlet device with a noise reduction function according to claim 1, characterized in that: A hoisting component (10) is fixedly installed on the top end surface of the installation part (4). The number of the hoisting components (10) is four groups, which are respectively installed at the four corners of the top surface of the installation part (4).

7. The air outlet device of a central air conditioner with a noise reduction function according to claim 1, characterized in that: An air inlet channel is fixedly opened on the side of the installation part (4), and the position of the air inlet channel corresponds to that of the first connecting rod (503).

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