A wind valve structure

Abstract

The application relates to a wind valve structure, which comprises a wind valve shell and a valve plate arranged in the wind valve shell, a motor is arranged on the wind valve shell, the wind valve shell is provided with an air inlet, a first air outlet and a second air outlet, under the drive of the motor, the valve plate can rotate to the position of opening the first air outlet or the second air outlet, characterized in that the air inlet is arranged at the bottom of the wind valve shell, the first air outlet is arranged at the side of the wind valve shell, and the second air outlet is arranged at the top of the wind valve shell; under the state that the valve plate rotates to close the second air outlet, the airflow flowing from the air inlet flows to the valve plate and flows out from the first air outlet under the guide of the valve plate. The wind valve structure can make the airflow flowing from the air inlet flow to the valve plate and flow out from the first air outlet under the guide of the valve plate under the state that the valve plate rotates to close the second air outlet, the arc-shaped valve plate is adopted, the airflow guiding effect is better, and the noise reduction is better. In addition, the claw-shaped shaft sleeve tightly holds the rotating shaft, the abnormal sound generated in the rotating process of the rotating shaft can be prevented, and the working noise is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a wind valve structure. BACKGROUND

[0002] The kitchen is the main place for people to cook. In order to improve the cooking experience, people have invented various kitchen air conditioners to cool the air in the kitchen in summer, and to provide warm air to the kitchen in winter to improve the cooking comfort. In order to improve the integration, people have invented air conditioner type range hood, that is, adding air conditioner components on the basis of range hood platform, which can realize all the functions of range hood, and also can realize the function of air conditioner. In order to improve the energy efficiency of air conditioner, people have invented double-channel structure of air conditioner type range hood, one channel is straight exhaust channel, the other channel is heat dissipation channel, the condenser is installed in the heat dissipation channel, only when the range hood works, the oil fume is discharged through the straight exhaust channel, when the range hood and the air conditioner are turned on at the same time, the oil fume is discharged through the heat dissipation channel, in order to switch the air duct, a wind valve needs to be installed inside the range hood. The wind valve generally includes a wind valve shell, a motor is arranged outside the wind valve shell, a valve plate is arranged in the wind valve shell, and the output shaft of the motor is connected with the valve plate through a rotating shaft.

[0003] During the operation of the range hood, the airflow will produce a lot of noise. At present, the method of sticking sound-absorbing cotton is generally used for noise reduction treatment. On the one hand, the use of sound-absorbing cotton will increase the cost, and on the other hand, the sound-absorbing cotton is difficult to stick, which brings some inconvenience to the installation. Moreover, the sound-absorbing cotton may also come into contact with the condensate water generated by the air conditioning system, which is not conducive to the discharge of the air conditioning condensate water. Therefore, it is necessary to use other noise reduction structures, such as improving the structure of the wind valve, which can also reduce the noise. In addition, after the wind valve rotating shaft and the wind valve shell are assembled, the rotating shaft may emit a creaking sound when rotating, and the rotation is not smooth. In order to solve the above problems, bearings are usually used in cooperation with the wind valve rotating shaft at present, but the use of bearings will increase the cost on the one hand, and the installation of bearings and the wind valve shell is complex, and the interference fit is difficult to assemble. SUMMARY

[0004] The first technical problem to be solved by the present application is to provide a wind valve structure capable of guiding the airflow flowing into the wind valve and having low working noise in view of the above-mentioned prior art.

[0005] The second technical problem to be solved by the present application is to provide a wind valve structure capable of preventing the generation of rotating abnormal sound and having low working noise in view of the above-mentioned prior art.

[0006] The technical scheme adopted by the present application to solve the first technical problem is as follows: the air valve structure comprises an air valve shell and a valve plate arranged in the air valve shell, a motor is arranged on the air valve shell, the air valve shell has an air inlet, a first air outlet and a second air outlet, under the driving of the motor, the valve plate can rotate to a position for opening the first air outlet or the second air outlet, and the air inlet is arranged at the bottom of the air valve shell, the first air outlet is arranged at the side of the air valve shell, and the second air outlet is arranged at the top of the air valve shell, and under the state that the valve plate rotates to close the second air outlet, the airflow flowing from the air inlet flows to the valve plate and flows out from the first air outlet under the guidance of the valve plate.

[0007] Preferably, a rotating shaft is arranged on the upper part of the air valve shell and rotates under the driving of the motor, the upper part of the valve plate is fixed on the rotating shaft, under the driving of the motor, the valve plate rotates downward to a vertical position to close the first air outlet, and the valve plate rotates upward to abut against the inner wall of the air valve shell to close the second air outlet. In this way, under the driving of the motor, the first air outlet or the second air outlet can be opened by rotating the valve plate upward and downward.

[0008] Further preferably, under the state that the second air outlet is closed, the valve plate is in an inclined position, and the rotation angle of the valve plate from the vertical position to the inclined position is an acute angle.

[0009] In order to better guide the airflow from the air inlet to the first air outlet, the valve plate is an arc-shaped valve plate, and under the state that the second air outlet is closed, the arc-shaped concave surface of the valve plate faces downward to form an airflow guide surface. After the arc-shaped valve plate is adopted, not only a better guiding effect can be achieved, but also noise can be reduced.

[0010] In order to guide the airflow flowing out of the first air outlet, a guide plate is arranged on the outer side of the upper part of the valve plate, the guide plate has a strip-shaped structure arranged in a transverse direction, the two side edges of the guide plate in the length direction are adjacent to the corresponding side walls of the air valve shell, and the lower part of the guide plate is fixed on the valve plate so that the guide plate can rotate synchronously with the valve plate.

[0011] The guide plate can have various structures, and preferably, the guide plate comprises a mounting portion, a guide portion and a wind blocking portion, the mounting portion is arranged on the valve plate, the upper edge of the mounting portion extends outward from the plane of the mounting portion to form the guide portion, and the upper edge of the guide portion extends inward from the plane of the guide portion to form the wind blocking portion.

[0012] Further preferably, in the state that the first air outlet is closed, the wind blocking part of the flow guide plate is adjacent to or abuts against the air valve shell, in the state that the second air outlet is closed, the flow guiding part of the flow guide plate is in a horizontal position, the wind blocking part of the flow guide plate is horizontally upturned and a gap is formed between the wind blocking part and the air valve shell, and the upturned wind blocking part can prevent the air flow blown from the first air outlet from entering the air valve shell through the gap. In this way, under the action of the flow guide plate, the air flow can be prevented from entering the air valve shell through the gap, so that the air flow can not hit the components inside the air valve shell, and the air flow can be made to flow out of the first air outlet more uniformly, thereby being beneficial to reducing noise.

[0013] The motor has various installation structures, and preferably, a motor support is installed on the outer side of the air valve shell, the motor is installed on the outer side of the motor support, the outer end of the rotating shaft is provided with a motor shaft installation hole, the output shaft of the motor is installed in the motor shaft installation hole, and the inner end of the rotating shaft is connected and fixed with the valve plate.

[0014] The technical scheme adopted by the application to solve the second technical problem is that: the air valve structure is provided with an installation hole in the side wall of the air valve shell, a claw type shaft sleeve is installed in the installation hole, the claw type shaft sleeve is sleeved on the outer end of the rotating shaft, the inner end of the claw type shaft sleeve has a claw part that tightly holds the rotating shaft, the end part of the claw part has a circumferential outwardly turned flange, and the flange is arranged inside the air valve shell and is invertedly buckled on the edge of the installation hole. In this way, the claw type shaft sleeve has a certain elasticity, and after tightly holding the rotating shaft, the claw type shaft sleeve can prevent abnormal sound from being generated during rotation, thereby further reducing the noise of the air valve.

[0015] In order to avoid air leakage, in the state that the first air outlet or the second air outlet is closed, the valve plate is rotated to a position that is tightly sealed with the air valve shell.

[0016] Compared with the prior art, the air valve structure has the advantages that: the air inlet of the air valve structure is arranged at the bottom of the air valve shell, the first air outlet is arranged at the side of the air valve shell, and the second air outlet is arranged at the top of the air valve shell, in the state that the valve plate is rotated to open the first air outlet and close the second air outlet, the air flow flowing in from the air inlet flows to the valve plate and flows out of the first air outlet under the flow guiding of the valve plate, and the arc-shaped valve plate is adopted, so that the flow guiding effect on the air flow is better, and noise reduction is more beneficial. In addition, the claw type shaft sleeve that has a certain elasticity tightly holds the rotating shaft, so that abnormal sound can be prevented from being generated during rotation of the rotating shaft, thereby further reducing noise. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of an embodiment of the application (the first air outlet is closed);

[0018] Figure 2 is Figure 1 is a structural schematic view from another angle;

[0019] Figure 3 This is a schematic diagram of the structure of an embodiment of the present invention (with the first air outlet open);

[0020] Figure 4 This is a structural cross-sectional view of an embodiment of the present invention (with the first air outlet open);

[0021] Figure 5 This is a schematic diagram of the structure of the guide plate according to an embodiment of the present invention;

[0022] Figure 6 This is an exploded view of an embodiment of the present invention;

[0023] Figure 7 This is a partial exploded view of an embodiment of the present invention. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] like Figures 1 to 4 As shown, the damper structure of this embodiment includes main components such as a damper housing 1, a valve plate 2, a motor 3, a rotating shaft 4, a guide plate 5, and a motor bracket 6. The valve plate 2 is located inside the damper housing 1, the motor bracket 6 is mounted on the outer wall of the damper housing 1, and the motor 3 is mounted on the outer side of the motor bracket 6. The rotating shaft 4 is located at the upper part of the damper housing 1 and passes through the damper housing 1. (See [reference]). Figure 7 As shown, the outer end of the rotating shaft 4 has a motor shaft mounting hole 41. The output shaft 31 of the motor 3 is inserted into and fixed in the motor shaft mounting hole 41. The inner end of the rotating shaft 4 is connected and fixed to the upper part of the valve plate 2. The guide plate 5 has a transversely arranged strip structure. The guide plate 5 is fixed to the outer side of the upper part of the valve plate 2, and the two sides of the guide plate 5 in the length direction are adjacent to the corresponding side walls of the air valve housing 1. Under the drive of the motor 3, the valve plate 2 and the guide plate 5 rotate synchronously.

[0026] The damper housing 1 has a square structure. An air inlet 11 is located at the bottom of the damper housing 1, a first air outlet 12 is located on the side of the damper housing 1, and a second air outlet 13 is located at the top of the damper housing 1. For example... Figure 1 and Figure 2 As shown, driven by motor 3, when valve plate 2 rotates downward to a vertical position, the edge of valve plate 2 abuts against air valve housing 1, the first air outlet 12 closes, and the second air outlet 13 opens. Figure 3 and Figure 4 As shown, when the valve plate 2 is rotated upward to the inclined position, the edge of the valve plate 2 abuts against the inner wall of the air valve housing 1, the first air outlet 12 opens, and the second air outlet 13 closes. Furthermore, the rotation angle of the valve plate 2 from the vertical position to the inclined position is an acute angle; that is, when the first air outlet 12 is open and the second air outlet 13 is closed, the angle between the valve plate 2 and the vertical plane is an acute angle.

[0027] In this embodiment, the valve plate 2 is an arc-shaped valve plate. In the state that the first air outlet 12 is open and the second air outlet 13 is closed, the arc-shaped concave surface of the valve plate 2 faces downward, i.e. toward the air inlet 11. The arc-shaped concave surface of the valve plate 2 forms a flow guide surface. The air flow flowing upward from the air inlet 11 flows toward the arc-shaped concave surface of the valve plate 2 (i.e. the outer surface of the valve plate in the vertical state), and then flows out from the first air outlet 12 through the valve plate 2. The air flow is guided by the arc-shaped concave surface, which is conducive to reducing the noise of the air flow.

[0028] In order to prevent air leakage of the air valve, in the state that the first air outlet 12 or the second air outlet 13 is closed, the valve plate 2 is rotated to a position that is sealed with the air valve housing 1.

[0029] As shown in Figure 5 , the flow guide plate 5 comprises a mounting portion 51, a flow guide portion 52 and a wind blocking portion 53. The lower portion of the flow guide plate 5 is the mounting portion 51, which is mounted on the valve plate 2. The upper edge of the mounting portion 51 extends outwardly from the plane on which the mounting portion 51 is located to form the flow guide portion 52. The upper edge of the flow guide portion 52 extends inwardly from the plane on which the flow guide portion 52 is located to form the wind blocking portion 53.

[0030] As shown in Figure 1 , in the state that the first air outlet 12 is closed and the second air outlet 13 is open, the wind blocking portion 53 of the flow guide plate 5 is adjacent to or abuts against the air valve housing 1. As shown in Figure 4 , in the state that the first air outlet 12 is open and the second air outlet 13 is closed, the flow guide portion 52 of the flow guide plate 5 is in a horizontal position, and the wind blocking portion 53 of the flow guide plate 5 is horizontally upturned and forms a gap 7 with the air valve housing 1. During the process that the air flow flows from the air inlet 11 and then flows out from the first air outlet 12, the wind blocking portion 53 can prevent the air flow from flowing into the inside of the air valve housing 1 through the gap 7. Since the upper edge of the valve plate 2 is located at the rear side of the gap, if the air flow enters the inside of the air valve housing from the gap 7, the air flow will impact the upper edge of the valve plate 2 and generate a large noise. Therefore, after the wind blocking portion 53 is provided, the air flow no longer enters the inside of the air valve housing 1 through the gap 7, so that the noise can be effectively reduced.

[0031] As shown in Figure 6 and Figure 7 , a mounting hole 14 is formed in the side wall of the air valve housing 1, and a claw-shaped shaft sleeve 8 is mounted in the mounting hole 14. The claw-shaped shaft sleeve 8 is sleeved on the outer end of the rotating shaft 4. The inner end of the claw-shaped shaft sleeve 8 has a claw portion 81 that tightly holds the rotating shaft 4. The end portion of the claw portion 81 has a circumferential outwardly turned flange 82. The flange 82 is arranged inside the air valve housing 1 and is invertedly buckled on the edge of the mounting hole 14. Since the claw-shaped shaft sleeve 8 has a certain elasticity, after tightly holding the rotating shaft 4, the claw-shaped shaft sleeve 8 can prevent abnormal sound from being generated during the rotation of the rotating shaft 4, and further reduce the noise of the air valve in operation.

Claims

1. A damper structure, comprising a damper housing (1) and a valve plate (2) disposed within the damper housing, wherein a motor (3) is mounted on the damper housing (1), the damper housing (1) having an air inlet (11), a first air outlet (12), and a second air outlet (13), wherein, driven by the motor (3), the valve plate (2) can rotate to a position where the first air outlet (12) or the second air outlet (13) is opened, characterized in that: The air inlet (11) is located at the bottom of the valve housing (1), the first air outlet (12) is located on the side of the valve housing (1), and the second air outlet (13) is located at the top of the valve housing (1). When the valve plate (2) is rotated to close the second air outlet (13), the airflow flowing in from the air inlet (11) flows to the valve plate (2) and flows out from the first air outlet (12) under the guidance of the valve plate (2). A rotating shaft (4) driven by a motor (3) is installed on the upper part of the valve housing (1). The upper part of the valve plate (2) is fixed on the rotating shaft (4). Under the drive of the motor (3), the valve plate (2) rotates downward to the vertical position to close the first air outlet (12). The valve plate (2) rotates upward. The valve plate (2) is rotated to abut against the inner wall of the valve housing (1) to close the second air outlet (13). An installation hole (14) is opened on the side wall of the valve housing (1). A claw-shaped bushing (8) is installed in the installation hole (14). The claw-shaped bushing (8) is sleeved on the outer end of the rotating shaft (4). The inner end of the claw-shaped bushing (8) has a claw part (81) that hugs the rotating shaft. The end of the claw part (81) has a circumferentially outward-turned flange (82). The flange (82) is located inside the valve housing (1) and is turned upside down on the edge of the installation hole (14). When the first air outlet (12) or the second air outlet (13) is closed, the valve plate (2) is rotated to a position that seals against the valve housing (1).

2. The damper structure according to claim 1, characterized in that: When the second air outlet (13) is closed, the valve plate (2) is in an inclined position, and the angle of rotation of the valve plate (2) from the vertical position to the inclined position is an acute angle.

3. The air valve structure according to claim 2, characterized in that: The valve plate (2) is an arc-shaped valve plate. When the second air outlet (13) is closed, the arc-shaped concave surface of the valve plate (2) faces downward to form an airflow guiding surface.

4. The damper structure according to claim 2, characterized in that: A guide plate (5) is installed on the outer side of the upper part of the valve plate (2). The guide plate (5) is a horizontally arranged strip structure. The two sides of the guide plate (5) in the length direction are adjacent to the corresponding side walls of the air valve housing (1). The lower part of the guide plate (5) is fixed on the valve plate (2) so that the guide plate (5) can rotate synchronously with the valve plate (2).

5. The air valve structure according to claim 4, characterized in that: The guide plate (5) includes a mounting part (51), a guide part (52) and a windproof part (53). The mounting part (51) is mounted on the valve plate (2). The upper edge of the mounting part (51) extends outward from the plane where the mounting part is located to form the guide part (52). The upper edge of the guide part (52) extends inward from the plane where the guide part is located to form the windproof part (53).

6. The air valve structure according to claim 5, characterized in that: When the first air outlet (12) is closed, the wind-blocking part (53) of the guide plate (5) is adjacent to or against the air valve housing (1). When the second air outlet (13) is closed, the guide part (52) of the guide plate (5) is in a horizontal position, and the wind-blocking part (53) of the guide plate (5) is horizontally upturned and forms a gap (7) with the air valve housing (1). The upturned wind-blocking part (53) can prevent the airflow blown out from the first air outlet (12) from entering the air valve housing (1) through the gap (7).

7. The damper structure according to any one of claims 1 to 6, characterized in that: A motor bracket (6) is installed on the outside of the air valve housing (1), the motor (3) is installed on the outside of the motor bracket (6), the outer end of the rotating shaft (4) has a motor shaft mounting hole (41), the output shaft (31) of the motor (3) is installed in the motor shaft mounting hole (41), and the inner end of the rotating shaft (4) is connected and fixed to the valve plate (2).

Images