Low-noise forced exhaust mechanism of gas water heater

Abstract

The utility model relates to a low-noise gas water heater forced exhaust mechanism which comprises a volute and a motor, an air inlet is formed in one side of the volute, the motor is installed on the other side of the volute through a plurality of supports, and a rotating shaft of the motor penetrates through the wall of the volute to be connected with a wind wheel shaft in the volute. A first mounting plate and a second mounting plate are arranged at the two ends of the support respectively, the first mounting plate is fixed to the volute through screws, a clamping hole is formed in the second mounting plate, a horn mouth communicated with the clamping hole is formed in the side face of the second mounting plate, an elastic rubber sleeve is clamped to the clamping hole, a mounting hole coaxial with the clamping hole is formed in the elastic rubber sleeve, and the mounting hole is communicated with the horn mouth. And the motor is connected with the mounting hole through a connecting piece so as to be fixed on the second mounting plate. The elastic rubber sleeve is arranged on the bracket of the motor, and the vibration caused by the motor is counteracted by using the elastic vibration buffering effect of the elastic rubber sleeve, so that the noise influence caused by the vibration of the motor is solved; in addition, the elastic rubber sleeve is connected with the support in a clamping mode, and later replacement can be facilitated.

Description

Technical Field

[0001] The utility model relates to a low-noise forced exhaust mechanism for a gas water heater. Background Art

[0002] When gas water heaters are working, they will produce a lot of smoke, which contains carbon monoxide. In order to ensure the safety of users, these gas water heaters will be equipped with a strong exhaust fan to extract the smoke and send it to the outside to avoid carbon monoxide accumulation in the shower room. However, the problem that arises is that the strong exhaust fan will produce a lot of noise when working. The main source of noise is the vibration generated by the motor, which causes other parts inside the gas water heater to vibrate and produce noise. For this reason, some people install sound insulation cotton inside the gas water heater, or reduce the power of the strong exhaust fan to reduce noise, but the effect is not very ideal.

[0003] Therefore, it is necessary to make further improvements. Utility Model Content

[0004] The purpose of the utility model is to overcome the above problems and provide a low-noise gas water heater forced exhaust mechanism, which cushions the vibration of the motor by installing an elastic rubber sleeve on the bracket of the motor, thereby fundamentally solving the noise problem.

[0005] To achieve the above-mentioned purpose, the utility model provides a low-noise gas water heater forced exhaust mechanism, which includes a volute and a motor, wherein an air inlet is provided on one side of the volute, and the motor is installed on the other side of the volute through a plurality of brackets, and the rotating shaft of the motor passes through the shell wall of the volute and is connected to the wind wheel shaft inside the volute, and a first mounting plate and a second mounting plate are respectively provided at both ends of the bracket, the first mounting plate is fixed to the volute by screws, and the second mounting plate has a clamping hole, and a bell mouth connected to the clamping hole is provided on the side of the second mounting plate, an elastic rubber sleeve is clamped on the clamping hole, and a mounting hole coaxially arranged with the clamping hole is opened on the elastic rubber sleeve, and the motor is connected to the mounting hole through a connecting piece to be fixed to the second mounting plate.

[0006] In one or more embodiments, the elastic rubber sleeve includes an upper rubber pad layer, a column and a lower rubber pad layer. The upper rubber pad layer is arranged on the upper end surface of the second mounting plate, and the lower rubber pad layer is arranged on the lower end surface of the second mounting plate. The column connects the upper rubber pad layer and the lower rubber pad layer and is clamped in the clamping hole.

[0007] In one or more embodiments, the connecting member includes a bolt and a nut, the bolt passes through the motor, the upper rubber pad layer, the column and the lower rubber pad layer in sequence, and the nut is arranged on the lower end surface of the lower rubber pad layer and connected to the bolt.

[0008] In one or more embodiments, the bell mouth is wide outside and narrow inside, and the stud diameter of the bolt is larger than the narrow mouth width of the bell mouth.

[0009] In one or more embodiments, a soft gasket is provided between the first mounting plate and the volute, and the soft gasket is bonded to the first mounting plate.

[0010] In one or more embodiments, the rotating shaft of the motor is connected to a heat dissipation fan blade, and the heat dissipation fan blade is located between the volute and the motor.

[0011] Compared with the background technology, the utility model has the following effects: by installing an elastic rubber sleeve on the bracket of the motor, the elastic vibration-absorbing effect of the elastic rubber sleeve is used to offset the vibration caused by the motor, thereby solving the noise impact caused by the vibration of the motor; in addition, the elastic rubber sleeve is connected to the bracket in a snap-on manner, which can be convenient for later replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the installation structure of the motor and the volute of the utility model embodiment;

[0013] Figure 2 This is a cross-sectional view of the connection between the motor, the bracket and the elastic rubber sleeve of the embodiment of the utility model;

[0014] Figure 3 It is a schematic diagram of the structure of the bracket of the embodiment of the utility model. DETAILED DESCRIPTION

[0015] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0016] Please see attached Figure 1-3 The present application provides a low-noise gas water heater forced exhaust mechanism, which includes a volute 1 and a motor 2. One side of the volute 1 is provided with an air inlet. The motor 2 is installed on the other side of the volute 1 through a plurality of brackets 3. The number of the brackets is preferably three and evenly distributed circumferentially. The rotating shaft 21 of the motor 2 passes through the shell wall of the volute 1 and is connected to the wind wheel shaft inside the volute. The two ends of the bracket 3 are respectively provided with a first mounting plate 31 and a second mounting plate 32. The first mounting plate 31 is fixed to the volute 1 by screws. The second mounting plate 32 has a clamping hole 4. The second mounting plate 32 has a A bell mouth 5 connected to the card hole is provided on the side, and an elastic rubber sleeve 6 is clamped on the card hole 4. The elastic rubber sleeve is clamped into the card hole with the help of the bell mouth and fixed. The elastic rubber sleeve is provided with a mounting hole coaxially arranged with the card hole. The motor 2 is connected to the mounting hole through a connecting piece to be fixed on the second mounting plate 32. After the elastic rubber sleeve is provided, after the vibration generated by the motor is transmitted to the elastic rubber sleeve, the elastic rubber sleeve offsets most of the vibration through its own elastic deformation, thereby isolating the vibration of the motor, so that other components of the gas water heater are not affected by the vibration of the motor to generate noise.

[0017] Specifically, the elastic rubber sleeve 6 includes an upper rubber pad layer 61, a column 62 and a lower rubber pad layer 63. The upper rubber pad layer 61 is arranged on the upper end surface of the second mounting plate 32, and the lower rubber pad layer 63 is arranged on the lower end surface of the second mounting plate 32. The column 62 connects the upper rubber pad layer and the lower rubber pad layer and is clamped in the clamping hole 4.

[0018] The connecting part includes a bolt 7 and a nut 8. The bolt passes through the motor 2, the upper rubber pad 61, the column 62 and the lower rubber pad 63 in sequence. The nut 8 is arranged on the lower end surface of the lower rubber pad 63 and is connected to the bolt 7. The upper rubber pad 61 separates the motor from the second mounting plate 32, and the lower rubber pad separates the second mounting plate from the nut, so that the vibration generated by the motor is separated by the elastic rubber sleeve and is difficult to be transmitted to the bracket, and therefore cannot be transmitted to other components of the gas water heater.

[0019] The bell mouth 5 is wide outside and narrow inside, and the stud diameter of the bolt 7 is larger than the narrow mouth width of the bell mouth. The bell mouth can facilitate the elastic rubber sleeve to be inserted into the hole, and the larger diameter of the bolt can prevent it from escaping from the hole.

[0020] A soft gasket is provided between the first mounting plate 31 and the volute 1 , and the soft gasket is bonded to the first mounting plate. The provision of the soft gasket can further improve the vibration damping performance and further reduce the vibration transmitted from the motor to the volute.

[0021] The internal temperature of the gas water heater is relatively high when it is working. In order to dissipate the heat for the motor, the rotating shaft of the motor 2 is connected with a heat dissipation fan blade 9, and the heat dissipation fan blade is located between the volute and the motor.

[0022] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A low-noise gas water heater forced exhaust mechanism, characterized by: The invention comprises a volute (1) and a motor (2), wherein an air inlet is provided on one side of the volute (1), and the motor (2) is mounted on the other side of the volute (1) via a plurality of brackets (3), and a rotating shaft (21) of the motor (2) passes through the shell wall of the volute (1) and is connected to the wind wheel shaft inside the volute, and a first mounting plate (31) and a second mounting plate (32) are respectively provided at two ends of the bracket (3), and the first mounting plate (31) is fixed to the volute (1) via screws, and the second mounting plate (32) has a clamping hole (4), and a bell mouth (5) connected to the clamping hole is provided on the side of the second mounting plate (32), and an elastic rubber sleeve (6) is clamped on the clamping hole (4), and a mounting hole coaxially arranged with the clamping hole is opened on the elastic rubber sleeve, and the motor (2) is connected to the mounting hole via a connecting piece so as to be fixed on the second mounting plate (32).

2. A low-noise forced exhaust mechanism for a gas water heater according to claim 1, characterized in that: The elastic rubber sleeve (6) comprises an upper rubber pad layer (61), a column (62) and a lower rubber pad layer (63); the upper rubber pad layer (61) is arranged on the upper end surface of the second mounting plate (32); the lower rubber pad layer (63) is arranged on the lower end surface of the second mounting plate (32); the column (62) connects the upper rubber pad layer and the lower rubber pad layer and is clamped in the clamping hole (4).

3. A low-noise forced exhaust mechanism for a gas water heater according to claim 2, characterized in that: The connecting member comprises a bolt (7) and a nut (8), wherein the bolt passes through the motor (2), the upper rubber pad layer (61), the column (62) and the lower rubber pad layer (63) in sequence, and the nut (8) is arranged on the lower end surface of the lower rubber pad layer (63) and connected to the bolt (7).

4. A low-noise forced exhaust mechanism for a gas water heater according to claim 3, characterized in that: The bell mouth (5) is wide outside and narrow inside, and the stud diameter of the bolt (7) is larger than the narrow mouth width of the bell mouth.

5. A low-noise forced exhaust mechanism for a gas water heater according to any one of claims 1 to 4, characterized in that: A soft gasket is provided between the first mounting plate (31) and the volute (1), and the soft gasket is bonded to the first mounting plate.

6. A low-noise forced exhaust mechanism for a gas water heater according to any one of claims 1 to 4, characterized in that: The rotating shaft of the motor (2) is connected with a heat dissipation fan blade (9), and the heat dissipation fan blade is located between the volute and the motor.

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