CN219101656U

CN219101656U - Blower with silencing function

Info

Publication number: CN219101656U
Application number: CN202320138404.1U
Authority: CN
Inventors: 蔡璐
Original assignee: Shenzhen Rixinchang Hardware Plastic Products Co ltd
Current assignee: Shenzhen Rixinchang Hardware Plastic Products Co ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-05-30
Anticipated expiration: 2033-02-07

Abstract

The utility model provides a blower with silencing function, which comprises an upper shell provided with a cavity, a lower shell provided with a cavity, a motor and fan blades, wherein the fan blades are arranged in an inner cavity of the upper shell, the motor is arranged in the inner cavity of the lower shell, one end of the motor is connected with the fan blades, the other end of the motor is connected with the bottom of the inner cavity of the lower shell, one end of the upper shell, which is far away from the lower shell, is provided with an air outlet, the side wall of the upper shell is provided with a plurality of air inlets in a surrounding manner, one end of the upper shell, which is close to the lower shell, is provided with a sealing element, the lower shell and the upper shell are sleeved through the sealing element, and the outer wall of the sealing element is provided with a fixing element. Through set up a plurality of air intakes in the upper housing ring, make the air-blower can inhale the air from a plurality of directions, reduce the velocity of flow of single air intake inhaled air to reduce wind noise and reach the purpose of amortization.

Description

Blower with silencing function

Technical Field

The utility model relates to the technical field of blower silencing, in particular to a blower with silencing function.

Background

The blower is eccentrically operated by the offset rotor and causes the volume change between the vanes in the rotor slot to draw in, compress and discharge air. When the air blower works, air at the air inlet generates vortex and turbulent flow due to the fact that air is sucked into the air blower at a high speed, and wind noise is generated.

At present, aiming at the noise problem of the blower, most of the noise problems adopt the silencer equipment additionally arranged outside the blower, so that the use cost of a user is increased, and the use space of the user equipment is increased.

Disclosure of Invention

The utility model provides a blower with silencing function, which aims to solve the technical problems that the use cost of a user is increased and the use space of user equipment is increased due to the fact that silencer equipment is additionally arranged outside the conventional blower.

The utility model provides a blower with silencing function, which comprises an upper shell provided with a cavity, a lower shell provided with a cavity, a motor and fan blades, wherein the fan blades are arranged in an inner cavity of the upper shell, the motor is arranged in an inner cavity of the lower shell, one end of the motor is connected with the fan blades, the other end of the motor is connected with the bottom of the inner cavity of the lower shell, an air outlet is formed in one end, far away from the lower shell, of the upper shell, a plurality of air inlets are formed in the side wall of the upper shell in a surrounding mode, a sealing piece is arranged at one end, close to the lower shell, of the upper shell, the lower shell is sleeved with the upper shell through the sealing piece, and a fixing piece is arranged on the outer wall of the sealing piece.

Further, the side wall of the lower shell is provided with a heat dissipation hole, the bottom of the lower shell is provided with a plurality of fixing holes, and the distance between the adjacent fixing holes is consistent with the included angle.

Further, the side wall of the lower shell is also provided with a power hole, and a power wire of the motor can penetrate through the power hole.

Further, the lower shell is further provided with a limiting ring, the limiting ring is fixedly connected with the lower shell, the limiting ring is sleeved with the motor, the limiting ring is provided with protruding points, and the position of the motor corresponding to the protruding points is provided with sliding grooves.

Further, the position of the air inlet is provided with a dust screen and a guide piece, the size of the dust screen is consistent with that of the air inlet, and one end of the guide piece is attached to the air inlet.

Further, the fan blade is provided with a shaft hole near one end of the motor, and an output shaft of the motor is fixedly connected with the fan blade through the shaft hole.

Compared with the prior art, the blower with the silencing function provided by the utility model has the following advantages:

1. the utility model provides a take air-blower of amortization, upper shell inner chamber is arranged in to the flabellum, and the lower shell inner chamber is arranged in to the motor, and motor one end is connected with the flabellum, and the chamber end in lower shell inner chamber is connected to the motor other end, and the one end that the lower shell was kept away from to the upper shell is equipped with the air outlet, and the lateral wall of upper shell encircles and is equipped with a plurality of air intakes. Through set up a plurality of air intakes in the upper housing ring, make the air-blower can inhale the air from a plurality of directions, reduce the velocity of flow of single air intake inhaled air to reduce wind noise and reach the purpose of amortization.

2. The air inlet position is provided with the dust screen, so that dust can be effectively prevented from entering the blower, and meanwhile, the guide piece is arranged at the dust screen position, so that air enters the blower along the guide piece, and mutual interference of the air entering the blower can be effectively avoided.

Drawings

FIG. 1 is a schematic view of the overall explosive structure of a blower with noise cancellation provided by the utility model;

FIG. 2 is a schematic view of another perspective explosion structure in a blower with noise reduction according to the present utility model;

FIG. 3 is a schematic diagram of a stop collar and motor in a blower with noise reduction according to the present utility model;

fig. 4 is a schematic diagram of an upper shell structure of a blower with noise reduction.

Reference numerals illustrate: 1. an upper case; 2. a lower case; 3. a fan blade; 4. a motor; 5. a seal;

11. an air outlet; 12. a guide member; 13. an air inlet; 14. a dust screen; 21. a heat radiation hole; 22. a power hole; 23. a limiting ring; 24. a fixing hole; 25. a bump; 31. a shaft hole; 41. positioning holes; 42. a chute; 51. and a fixing piece.

Detailed Description

For the purpose of making the technical solution and advantages of the present utility model more apparent, the present utility model will be further described in detail below with reference to the accompanying drawings and examples of implementation. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Referring to fig. 1 to 4, the present utility model provides a blower with noise reduction, which includes an upper case 1 with a cavity, a lower case 2 with a cavity, a motor 4 and fan blades 3, wherein the fan blades 3 are disposed in the inner cavity of the upper case 1, the motor 4 is disposed in the inner cavity of the lower case 2, one end of the motor 4 is connected with the fan blades 3, the other end of the motor 4 is connected with the bottom of the inner cavity of the lower case 2, one end of the upper case 1 far away from the lower case 2 is provided with an air outlet 11, a plurality of air inlets 13 are circumferentially arranged on the side wall of the upper case 1, one end of the upper case 1 near the lower case 2 is provided with a sealing member 5, the lower case 2 and the upper case 1 are sleeved by the sealing member 5, and the outer wall of the sealing member 5 is provided with a fixing member 51.

It will be appreciated that the motor 4 and the fan blade 3 are fixedly connected and placed in the cavity formed by the combination of the upper shell 1 and the lower shell 2, wherein one end of the lower shell 2 is placed in the cavity of the upper shell 1, and the cavity of the upper shell 1 and the cavity of the lower shell 2 are blocked by the arrangement of the sealing element 5, so that when the blower works, air in the cavity of the lower shell 2 cannot enter the cavity of the upper shell 1, and meanwhile, the sealing element 5 and the lower shell 2 are fixed by using the fixing element 51.

It can be appreciated that the sealing element 5 can be made of elastic rubber, the fixing element 51 can be made of a clamp spring, the sealing element 5 is extruded through the fixing element 51, friction force between the sealing element 5 and the lower shell 2 is increased, and the lower shell 2 is prevented from being separated from the sealing element 5. Further, the lower case 2 and the upper case 1 can be fixedly connected by using screws, so that the upper case 1 and the lower case 2 are prevented from being separated when the blower works.

It can be understood that the air blower can suck air from multiple directions by arranging the multiple air inlets 13 around the upper shell 1, so that the flow rate of air sucked by the single air inlet 13 is reduced, and the wind noise is reduced, thereby achieving the purpose of silencing.

Preferably, the side wall of the lower shell 2 is provided with a heat dissipation hole 21, the bottom of the lower shell 2 is provided with a plurality of fixing holes 24, and the distance and the included angle between the adjacent fixing holes 24 are consistent.

It will be appreciated that heat generated by the motor 4 during operation may be dissipated through the heat dissipation holes 21 provided in the side walls of the lower case 2, while the heat dissipation holes 21 are provided in plurality and circumferentially provided in the side walls of the lower case 2. Avoiding motor 4 from being sounded by high Wen Ying results in a service life reduction point.

Further, a plurality of fixing holes 24 are formed in the bottom of the lower shell 2, positioning holes 41 are formed in positions, corresponding to the fixing holes 24, of the motor 4, and the motor 4 and the lower shell 2 are fixed through the fixing holes 24 and the positioning holes 41 by using screws. The motor 4 is prevented from shaking in the cavity of the lower shell 2 during working. Meanwhile, the plurality of fixing holes 24 are symmetrically arranged, for example, when the fixing holes 24 are 3, the 3 fixing holes 24 are arranged in an equilateral triangle shape, so that the stability of the motor 4 can be improved.

Preferably, the side wall of the lower shell 2 is also provided with a power hole 22, and a power wire carried by the motor 4 can penetrate through the power hole 22.

It will be appreciated that the power cord of the motor 4 may be connected to mains supply via a power hole 22 provided through the lower housing 2, allowing for quick replacement of the motor 4 itself when the motor 4 is damaged. Avoiding the power cord setting at inferior valve 2, need to switch on motor 4 and inferior valve 2 electrical property again and weld when changing motor 4.

Preferably, the lower shell 2 is further provided with a limiting ring 23, the limiting ring 23 is fixedly connected with the lower shell 2, the limiting ring 23 is sleeved with the motor 4, the limiting ring 23 is provided with a bump 25, and a chute 42 is arranged at a position corresponding to the bump 25 of the motor 4.

It can be understood that the bump 25 is arranged on the inner side of the limiting ring 23, the motor 4 is provided with the sliding groove 42, the position of the sliding groove 42 corresponds to that of the bump 25, the motor 4 is limited by matching the sliding groove 42 with the bump 25, and the motor 4 can be installed rapidly. Meanwhile, the inner diameter size of the limiting ring 23 is consistent with the outer diameter size of the motor 4, and the limiting ring 23 is sleeved on the motor 4 to prevent the motor 4 from shaking in the lower shell 2 during working.

Preferably, the position of the air inlet 13 is provided with a dust screen 14 and a guide piece 12, the size of the dust screen 14 is consistent with that of the air inlet 13, and one end of the guide piece 12 is attached to the air inlet 13.

It can be understood that the dust screen 14 is arranged at the air inlet 13 to effectively prevent dust from entering the blower, and meanwhile, the guide piece 12 is arranged at the position of the dust screen 14, so that air enters the blower along the guide piece 12, and mutual interference of the air entering the blower can be effectively avoided.

Preferably, the fan blade 3 is provided with a shaft hole 31 near one end of the motor 4, and an output shaft of the motor 4 is fixedly connected with the fan blade 3 through the shaft hole 31.

It can be understood that the output shaft of the motor 4 is inserted into the shaft hole 31 of the fan blade 3 to be fixedly connected, so that the fan blade 3 can synchronously rotate when the motor 4 works.

Further, when the motor 4 or the fan blade 3 is damaged, the motor can be replaced independently, so that the use cost of a user is saved.

Working principle: the protruding points 25 are matched with the sliding grooves 42, so that the motor 4 is limited in the lower shell 2, the lower shell 2 and the motor 4 are locked and fixed through the positioning holes 41 and the fixing holes 24 by using screws, and the motor 4 is externally connected with commercial power. When the motor 4 works, the fan blades 3 and the output shaft of the motor 4 synchronously rotate, and the fan blades 3 rotate to drive air to flow, so that air around the blower enters the inner cavity of the upper shell 1 through the air inlet 13 and is discharged from the air outlet 11. Simultaneously, the sealing piece 5 is used for blocking air in the lower shell 2 from entering the upper shell 1, and a plurality of air inlets 13 are formed in the upper shell 1 in a surrounding mode, so that the air blower can suck air from a plurality of directions, the flow speed of air sucked by a single air inlet 13 is reduced, and the wind noise is reduced, so that the purpose of silencing is achieved. Meanwhile, dust can be effectively prevented from entering the blower by arranging the dust screen 14 at the air inlet 13, and meanwhile, air can enter the blower along the guide piece 12 by arranging the guide piece 12 at the position of the dust screen 14, so that mutual interference of the air entering the blower can be effectively avoided.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements, etc. within the principles of the present utility model should be included in the scope of the present utility model.

Claims

1. A blower with noise reduction, characterized in that: including the epitheca that is equipped with the cavity, be equipped with inferior valve, motor and the flabellum of cavity, the flabellum is arranged in the epitheca inner chamber, the motor is arranged in the inferior valve inner chamber, motor one end with the flabellum is connected, the motor other end is connected the chamber end of inferior valve inner chamber, just the epitheca is kept away from the one end of inferior valve is equipped with the air outlet, the lateral wall of epitheca encircles and is equipped with a plurality of air intakes, the epitheca is close to the one end of inferior valve is equipped with the sealing member, the inferior valve with the epitheca passes through the sealing member cup joints, the sealing member outer wall is equipped with the mounting.

2. A sound deadening blower as set forth in claim 1, wherein: the side wall of the lower shell is provided with a heat dissipation hole, the bottom of the lower shell is provided with a plurality of fixing holes, and the distance between the adjacent fixing holes is consistent with the included angle.

3. A sound deadening blower as set forth in claim 2, wherein: the side wall of the lower shell is also provided with a power hole, and a power wire of the motor can penetrate through the power hole.

4. A sound deadening blower as set forth in claim 1, wherein: the lower shell is further provided with a limiting ring, the limiting ring is fixedly connected with the lower shell, the limiting ring is sleeved with the motor, the limiting ring is provided with protruding points, and the position of the motor corresponding to the protruding points is provided with sliding grooves.

5. A sound deadening blower as set forth in claim 1, wherein: the air inlet position is provided with a dust screen and a guide piece, the dust screen is consistent with the air inlet in size, and one end of the guide piece is attached to the air inlet.

6. A sound deadening blower as set forth in claim 1, wherein: the fan blade is close to one end of the motor and is provided with a shaft hole, and an output shaft of the motor is fixedly connected with the fan blade through the shaft hole.