CN219877648U - Silencing structure and blowing device - Google Patents

Abstract

The utility model discloses a silencing structure of a blowing device and the blowing device, wherein the silencing structure comprises a flow guiding part and a connecting part, a plurality of flow guiding channels are arranged on the flow guiding part, the flow guiding channels are arranged on the flow guiding part side by side and are mutually separated, the flow guiding channels extend along the axial direction of the flow guiding part, the connecting part is connected with the flow guiding part and extends along the circumferential direction of the flow guiding part, an airflow channel is arranged on the inner side of the connecting part, and a hollowed-out structure is arranged on the peripheral wall of the connecting part. According to the silencing structure provided by the embodiment of the utility model, the air flow can flow uniformly through the flow guide part, so that the noise in the blowing device is reduced, and the noise generated by the air flow can be absorbed through the connecting part, so that the noise in the blowing device is further reduced.

Description

Silencing structure and blowing device

Technical Field

The utility model relates to the technical field of blowing devices, in particular to a silencing structure and a blowing device.

Background

The blowing device is a device which can facilitate the user to dry and care the hair by driving the air to flow out.

In the related art, a blower assembly is built in the blower device to drive the airflow to flow, and turbulence is easily generated upstream of the blower assembly during operation, resulting in loud noise generated by the blower device.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, an object of the present utility model is to provide a silencing structure of a blower device, which can reduce noise generated in the blower device and improve user experience.

Another object of the present utility model is to propose a blowing device comprising a silencing structure as described above.

According to the silencing structure provided by the embodiment of the utility model, the silencing structure comprises the flow guiding part and the connecting part, wherein the flow guiding part is provided with a plurality of flow guiding channels, the flow guiding channels are arranged on the flow guiding part side by side and are mutually separated, the flow guiding channels extend along the axial direction of the flow guiding part, the connecting part is connected with the flow guiding part and extends along the circumferential direction of the flow guiding part, the inner side of the connecting part is provided with an airflow channel, and the peripheral wall of the connecting part is provided with a hollowed-out structure.

According to the silencing structure provided by the embodiment of the utility model, the air flow can flow uniformly through the flow guide part, so that the noise in the blowing device is reduced, and the noise generated by the air flow can be absorbed through the connecting part, so that the noise in the blowing device is further reduced.

In addition, the silencing structure according to the above embodiment of the present utility model may further have the following additional technical features:

optionally, the connecting portion includes annular muscle and a plurality of connecting rib, annular muscle is followed the circumference extends, and with the water conservancy diversion portion is followed the axial is separated, the connecting rib connect in annular muscle with between the water conservancy diversion portion, a plurality of connecting rib are followed the circumference is spaced apart, and adjacent construct between the connecting rib hollow out construction.

Optionally, a positioning portion is provided on an outer peripheral surface of the annular rib, and the positioning portion is configured as a boss provided on the outer peripheral surface of the annular rib.

Optionally, the diversion channels are configured as polygonal holes, and two adjacent diversion channels are co-sided.

Optionally, the diversion channel is configured as a hole shape which gradually expands or has a constant size in the airflow direction.

According to the air blowing device provided by the embodiment of the utility model, the air blowing device comprises a main body, a handle assembly, a fan assembly and a silencing structure of the air blowing device, wherein the main body is provided with an air outlet, the handle assembly is connected to the main body and is provided with an air inlet, the fan assembly is arranged in the handle assembly, and the silencing structure is arranged between the fan assembly and the air inlet.

According to the air blowing device provided by the embodiment of the utility model, by applying the silencing structure, noise generated when the air blowing device is used can be reduced, so that the use experience of a user is improved.

Optionally, a minimum distance between an end of the fan assembly and the deflector in a direction of airflow within the handle assembly is H, the distance H being no less than 11mm and no more than 20mm.

Optionally, the flow guide portion is configured as a plate-like shape along a direction perpendicular to an air flow direction within the handle assembly, and the flow guide channel extends along the air flow direction.

Optionally, the blowing device further includes a silencing member, and the silencing member covers the hollow structure.

Optionally, a space corresponding to the hollow structure is provided on the inner peripheral surface of the handle assembly, and the silencing element is embedded in at least one of the hollow structure and the space.

Optionally, the inner peripheral surface of the handle assembly is provided with a step part and a positioning groove, the silencing structure is supported on the step part, and the silencing structure is provided with a positioning part embedded in the positioning groove.

Optionally, the fan assembly extends along the airflow direction, the flow guiding part extends along the airflow direction, and the axis of the fan assembly is collinear or parallel to the axis of the flow guiding part.

Optionally, the handle assembly extends along the upper and lower direction, the fan assembly has first air inlet end and first air-out end, the water conservancy diversion portion has second air inlet end and second air-out end, first air inlet end with the second air-out end is along the upper and lower direction relatively.

Optionally, the handle assembly includes shell and support, the support cover is located in the shell, wherein, the fan assembly the water conservancy diversion portion all install in on the support.

Drawings

FIG. 1 is a schematic illustration of a sound attenuating structure in some embodiments of the utility model.

Fig. 2 is a top view of a sound attenuating structure in some embodiments of the utility model.

Fig. 3 is a front view of a sound attenuating structure in some embodiments of the utility model.

Fig. 4 is a schematic view of a blower according to some embodiments of the present utility model.

Fig. 5 is a schematic view of the internal structure of a blower according to some embodiments of the present utility model (without a silencer).

Fig. 6 is a partial enlarged view a of the embodiment of fig. 5.

Fig. 7 is a schematic view of an internal structure of a blower device (mounting silencing structure) according to some embodiments of the present utility model.

Fig. 8 is a partial enlarged view B of the embodiment of fig. 7.

Fig. 9 is a schematic dimensional view of a blower in some embodiments of the utility model.

Reference numerals:

the air blowing device 1000, the silencing structure 100, the flow guiding part 10, the flow guiding channel 11, the connecting part 20, the air flow channel 21, the hollow structure 22, the annular rib 23, the connecting rib 24, the positioning part 25, the main body 200, the air outlet 210, the handle assembly 300, the air inlet filtering structure 310, the air inlet 311, the shell 320, the bracket 330, the step 331, the positioning groove 332, the fan assembly 400, the silencing piece 500, the abdication space 600 and the interval H.

Detailed Description

The utility model provides a silencing structure 100 of a blowing device 1000 and the blowing device 1000, which can reduce noise generated in the blowing device 1000 and improve the use experience of users.

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

As shown in fig. 1 to 3, according to the silencing structure 100 in the embodiment of the present utility model, the silencing structure 100 may include a flow guiding portion 10 and a connecting portion 20, a plurality of flow guiding channels 11 may be disposed on the flow guiding portion 10, the plurality of flow guiding channels 11 are disposed on the flow guiding portion 10 side by side and spaced apart from each other, the flow guiding channels 11 extend along an axial direction of the flow guiding portion 10, the connecting portion 20 is connected to the flow guiding portion 10 and extends along a circumferential direction of the flow guiding portion 10, an airflow channel 21 is disposed inside the connecting portion 20, and a hollowed-out structure 22 is disposed on a peripheral wall of the connecting portion 20.

The air blower 1000 may have an air inlet 311 and an air outlet 210, and air flow may flow from the air inlet 311 to the air outlet 210, and the silencing structure 100 may be disposed in the air blower 1000 to reduce noise generated by the air flow in the air blower 1000; in addition, the direction from the air inlet 311 to the air outlet 210 may be referred to as the air flow direction.

Specifically, when the blower 1000 works, the air flow can flow along the air flow direction and pass through the guide part 10, in the process, the air flow can respectively flow to the plurality of guide channels 11 on the guide part 10, so that the air flow can be divided into a plurality of air flows, the plurality of air flows can flow out of the air flow along the axial direction of the guide part 10 through the guide effect of the guide channels 11, and the air flows are converged to form uniform and stable air flows, thereby reducing the noise generated by the air flow in the blower 1000, in addition, the interception of the guide part 10 can reduce the air flow rate of the blower 1000, and further, the impact of the air flow on the blower 1000 can be reduced, so as to achieve the purpose of noise reduction; it can be understood that the air guiding portion 10 can reduce the turbulence of the air flow passing through the air guiding portion 10, so that the air flow can flow uniformly, i.e. the air flow is rectified, and the air guiding portion 10 can reduce the air flow rate, so as to reduce the noise.

In addition, the airflow channel 21 may have an air inlet end and an air outlet end axially opposite to each other along the flow guiding portion 10, when the airflow flows along the airflow direction, since the hollow structure 22 is disposed on the peripheral wall of the connecting portion 20, when the airflow passes through the airflow channel 21, the flow cross-sectional area of the airflow changes suddenly, and it can be understood that the flow cross-sectional area of the middle section of the airflow channel 21 is larger than the flow cross-sectional areas of the air inlet end and the air outlet end, so that the sound wave generated by the airflow is reflected in the airflow channel 21, thereby reducing the noise.

Second, the flow guiding portion 10 may be disposed upstream of the connection portion 20 in the air flow direction, for example, the air flow may pass through the flow guiding portion 10 and then the connection portion 20 to achieve noise reduction; alternatively, the flow guiding portion 10 may be disposed downstream of the connection portion 20, for example, the air flow may first pass through the connection portion 20 and then pass through the flow guiding portion 10, so as to achieve noise reduction; therefore, for convenience of description, description will be made below with the flow guiding portion 10 disposed upstream of the connecting portion 20.

It should be noted that, along the projection of the axial direction of the flow guiding portion 10, the structure of the flow guiding portion 10 may be square, circular, etc., but this is not a limitation of the protection scope of the present utility model.

Therefore, according to the silencing structure 100 of the embodiment of the present utility model, the air flow can be uniformly flowed through the flow guiding part 10 to reduce the generation of noise in the air blowing device 1000, and the generated noise can be absorbed through the connecting part 20 to further reduce the noise in the air blowing device 1000.

Of course, the hollow structure 22 disposed on the peripheral wall of the connecting portion 20 may include one or more of; for example, the hollow structure 22 may include one, so that when the air flows through the air flow channel 21, part of the air flow may enter the hollow structure 22 to change the flow cross-sectional area of the air flow channel 21, thereby reducing the noise of the blower 1000; for another example, the hollow structures 22 may include a plurality of hollow structures 22, so that when the air flow passes through the air flow channel 21, part of the air flow enters the hollow structures 22 respectively, so as to change the flow cross-sectional area of the air flow channel 21, thereby reducing the noise of the air blowing device 1000; but this is not a limitation on the scope of the utility model.

For example, as shown in fig. 3, in some embodiments of the present utility model, the connection portion 20 may include an annular rib 23 and a plurality of connection ribs 24.

Wherein, annular muscle 23 extends along circumference to can separate along the axial with water conservancy diversion portion 10, connecting rib 24 connect between annular muscle 23 and water conservancy diversion portion 10, a plurality of connecting ribs 24 are along circumference spaced apart, and constructs hollow out construction 22 between the adjacent connecting rib 24, with this production that can reduce the noise in the blast apparatus 1000, improve user's use experience.

When the blowing device 1000 works, air flow can flow along the air flow direction in the blowing device 1000 and passes through the silencing structure 100, in the process, the air flow can sequentially flow guide the part 10 and the connecting part 20, and when the air flow enters the air flow channel 21 of the connecting part 20, due to the hollow structure 22 formed between the adjacent connecting ribs 24, the flow cross section area of the middle section of the air flow channel 21 is larger than that of the air inlet end and the air outlet end, so that sound waves generated by the air flow can be reflected, and the noise is reduced.

As shown in fig. 1 to 3, in some embodiments of the present utility model, a positioning portion 25 may be provided on an outer circumferential surface of the annular rib 23, the positioning portion 25 being configured as a boss provided on the outer circumferential surface of the annular rib 23, wherein the silencing structure 100 may be installed in the blower 1000 to silence an air flow in the blower 1000, and it is understood that the installation of the silencing structure 100 in the blower 1000 may be facilitated by the positioning portion 25 provided on the outer circumferential surface of the annular rib 23, while the connection strength between the silencing structure 100 and an inner structure of the blower 1000 may be improved to ensure that the silencing structure 100 may stably operate.

In addition, the positioning portion 25 may be configured as a boss, and correspondingly, a groove may be provided in the interior of the blower 1000, and the boss may be embedded in the groove, so that the sound deadening structure 100 may be installed in the blower 1000. Further, the positioning portions 25 may be disposed in plural, and the positioning portions 25 may be disposed at intervals along the circumferential direction of the annular rib 23, and a plurality of corresponding grooves may be disposed in the blower 1000, so that the plurality of bosses are respectively embedded into the corresponding grooves one by one, thereby improving the installation strength of the silencing structure 100 in the blower 1000.

As shown in fig. 1 and 2, in some embodiments of the present utility model, the diversion channels 11 may be configured as polygonal holes, and two adjacent diversion channels 11 are co-bordered, so that the number of diversion channels 11 may be increased to improve the rectifying capability of the diversion portion 10.

In detail, the size of the silencing structure 100 installed in the blower 1000 is limited, so that the number of the guide channels 11 on the guide portion 10 can be increased as much as possible, and therefore, the space utilization rate of the guide portion 10 can be improved by configuring the guide channels 11 as polygonal holes, and the more the guide channels 11 are, the more the airflow passing through the guide portion 10 can be split into more airflows, and the more airflows can be combined to form uniform and stable airflows after being guided by the guide channels 11, so that the generation of noise of the blower 1000 can be reduced.

Wherein the polygonal hole may be hexagonal, octagonal, etc. in projection in the axial direction.

In addition, two adjacent diversion channels 11 share a side, in other words, along the orthographic projection in the axial direction, two adjacent to six channels can share the same side, so that the interval between two adjacent diversion channels 11 can be reduced, and the number of diversion channels 11 on the diversion portion 10 can be increased, so that the rectifying capability of the diversion portion 10 can be improved, namely, the capability of arranging airflow from disorder to uniformity can be improved.

In some embodiments of the present utility model, the diversion channel 11 may be configured as a hole shape that gradually expands or has a constant size in the direction of the air flow, so as to reduce noise generated from the blower 1000.

Alternatively, the guide channels 11 may be configured in a hole shape having a constant size in the direction of the air flow, so that the plurality of guide channels 11 may change the air flow from a disturbance to a uniform flow of the air flow when the air flow passes through the guide part 10, thereby reducing noise generated from the blowing device 1000.

Alternatively, the diversion channel 11 may be configured as a hole shape gradually expanding in the airflow direction, so as to reduce the flow velocity of the airflow when the airflow passes through the diversion portion 10, thereby reducing the noise generated by the blower 1000.

As shown in fig. 1 to 8, according to the blower apparatus 1000 in the embodiment of the present utility model, the blower apparatus 1000 includes the main body 200, the handle assembly 300, the blower assembly 400, and the silencing structure 100 of the blower apparatus 1000 in the above-described embodiment.

The main body 200 has an air outlet 210, the handle assembly 300 is connected to the main body 200 and has an air inlet 311, the fan assembly 400 is disposed in the handle assembly 300, and the silencing structure 100 is disposed between the fan assembly 400 and the air inlet 311, so that noise generated when the blower 1000 is used can be reduced by applying the silencing structure 100, and user experience can be improved.

Specifically, the handle assembly 300 is connected to the main body 200, and the handle assembly 300 has an air inlet 311, the main body 200 has an air outlet 210, and the direction from the air inlet 311 to the air outlet 210 may be the air flow direction, and at this time, the silencing structure 100 may be disposed in the handle assembly 300 to silence the air flow flowing from the air inlet 311 to the fan assembly 400, thereby reducing the noise of the blower 1000.

In the silencing structure 100, along the airflow direction, the flow guiding portion 10 and the connecting portion 20 may be sequentially disposed, the airflow may first pass through the flow guiding portion 10 and be split into multiple airflows by the flow guiding portion 10, the multiple airflows respectively pass through the corresponding flow guiding channels 11 one by one, and then the airflows may be combined to form uniform and stable airflows, so as to reduce the turbulence of the airflows, thereby reducing the noise generated by the airflows. The plurality of diversion channels 11 on the diversion part 10 can be configured into polygonal holes, and two adjacent diversion channels 11 are shared, so that the diversion channels 11 on the unit volume are increased, the space utilization rate of the diversion part 10 is improved, in addition, the diversion channels 11 can be configured into gradually-expanded holes along the airflow direction, so that the flow cross section area of the airflow when passing through the diversion channels 11 is gradually increased, and the flow speed of the airflow is reduced, so that the generation of airflow noise is reduced.

The air flow can enter the connecting part 20 after passing through the flow guiding part 10, and the hollow structure 22 is arranged on the peripheral wall of the connecting part 20, so that the flow cross section area of the air flow is suddenly changed when the air flow passes through the air flow channel 21, and the sound wave generated by the air flow is reflected, so that the noise is reduced; in addition, the connection part 20 includes an annular rib 23 and a plurality of connection ribs 24, and a hollow structure 22 may be configured between the adjacent connection ribs 24, in other words, a plurality of hollow structures 22 may be disposed on a peripheral wall of the connection part 20 to improve the noise reduction effect, and secondly, a positioning part 25 is disposed on an outer peripheral surface of the annular rib 23, and the positioning part 25 is configured as a boss, and a groove may be disposed at a corresponding position in the handle assembly 300, so that the boss on the annular rib 23 may be correspondingly embedded in the groove, thereby realizing the installation of the noise reduction structure 100 on the handle assembly 300. Further, a plurality of positioning portions 25 may be disposed, and a plurality of corresponding grooves may be disposed in the handle assembly 300, so that the plurality of positioning portions 25 may be respectively embedded in the plurality of grooves in a one-to-one correspondence manner, so as to improve the installation strength of the sound attenuation structure 100 on the handle assembly 300.

In addition, the air inlet 311 of the handle assembly 300 is provided with an air inlet filtering structure 310, when the air flow enters the handle assembly 300 from the air inlet 311, dust and other garbage in the air flow can be filtered through the air inlet filtering structure 310, so that the dust and other garbage are prevented from entering the handle assembly 300, and impact is caused to the internal structure of the handle assembly 300, so that noise is aggravated.

As shown in fig. 9, in some embodiments of the present utility model, a minimum distance between an end of the blower assembly 400 and the air guiding part 10 in the air flow direction in the handle assembly 300 may be H, and the distance H may be not less than 11mm and not more than 20mm, which may improve the silencing effect of the blower 1000.

In detail, in the blower 1000, since the flow rate of the air flow passing through the guide portion 10 is large, the air flow having a large flow rate may strike the blower assembly 400 located downstream, thereby generating a large noise, and thus, the minimum distance H between the end of the blower assembly 400 and the guide portion 10 may be not less than 11mm, so as to reduce the impact of the air flow on the blower assembly 400, thereby reducing the noise of the blower 1000. In addition, since the internal structure of the handle assembly 300 is not completely flat, the air flow is disturbed by the internal structure of the handle assembly 300 when flowing in the handle assembly 300, thereby forming turbulence and causing noise, and therefore, in order to reduce turbulence, the minimum distance H between the end of the fan assembly 400 and the air guiding portion 10 may be not more than 20mm, so as to reduce the formation of turbulence between the fan assembly 400 and the air guiding portion 10, thereby reducing noise generated by the air blowing device 1000. Alternatively, the distance H may be not less than 15mm and not more than 18mm to further reduce noise of the blower 1000 and improve the integration of the handle assembly 300.

Of course, according to practical situations, the minimum distance H between the end of the fan assembly 400 and the air guiding portion 10 may be less than 11mm to reduce the volume of the handle assembly 300. Alternatively, the minimum distance H between the end of the fan assembly 400 and the deflector 10 may be greater than 20 millimeters to further mitigate the impact of the airflow on the fan assembly 400.

As shown in fig. 1 to 4, 7 and 8, in some embodiments of the present utility model, the flow guiding portion 10 may be configured as a plate shape along a direction perpendicular to the air flow direction in the handle assembly 300, and the flow guiding channels 11 extend along the air flow direction, in other words, by providing the flow guiding portion 10 in the handle assembly 300, the plate-shaped flow guiding portion 10 may enable the air flow to enter the plurality of flow guiding channels 11 respectively, and after passing through the plurality of flow guiding channels 11 at the same time, may be combined to form a uniform and stable air flow.

As shown in fig. 4, in some embodiments of the present utility model, the blower 1000 may further include a silencer 500, where the silencer 500 may cover the hollow structure 22, and it is understood that when the airflow passes through the airflow channel 21, the sound wave generated by the airflow may be absorbed by the silencer 500 covered in the hollow area, so that the noise of the blower 1000 may be reduced; alternatively, when the air flows through the air flow channel 21, the silencing member 500 can expand and contract to change the flow cross-sectional area of the air flow channel 21, so that the sound waves generated by the air flow are reflected, and the purpose of reducing the noise of the blowing device 1000 is achieved.

As shown in fig. 5 to 8, in some embodiments of the present utility model, the inner peripheral surface of the handle assembly 300 may be provided with a yielding space 600 corresponding to the hollow structure 22, and the muffler 500 may be embedded in at least one of the hollow structure 22 and the yielding space 600, so that the muffler effect of the muffler 100 may be improved, and the installation stability of the muffler 500 may be ensured.

Specifically, the silencing member 500 may be embedded in at least one of the hollow structure 22 and the relief space 600, so that when the airflow passes through the airflow channel 21, the noise generated by the airflow may be absorbed by the silencing member 500 to reduce the noise of the blower 1000, and the silencing member 500 may separate the inner peripheral surface of the handle assembly 300 from the airflow channel 21, so as to further reduce the noise of the blower 1000.

In addition, the silencing member 500 may be embedded in the hollow structure 22; alternatively, the muffler 500 may be embedded in the relief space 600; or, the silencing piece 500 may be embedded in the hollow structure 22 and the abdication space 600 at the same time, so that the installation stability of the silencing piece 500 on the silencing structure 100 can be improved, and the silencing piece 500 is prevented from falling off, so as to ensure that the silencing piece 500 can work normally.

Secondly, the silencing member 500 is disposed in the relief space 600, in other words, the silencing member 500 is disposed between the peripheral wall of the silencing structure 100 and the inner peripheral surface of the handle assembly 300 to play a role of buffering vibration, thereby reducing noise of the blower 1000 and improving user experience.

As shown in fig. 5 to 8, in some embodiments of the present utility model, a stepped portion 331 and a positioning groove 332 may be provided on an inner circumferential surface of the handle assembly 300, the sound attenuating structure 100 may be supported on the stepped portion 331, and the positioning portion 25 embedded in the positioning groove 332 may be provided on the sound attenuating structure 100, so that the installation strength of the sound attenuating structure 100 may be improved.

When the silencing structure 100 is installed, the flow guiding part 10 in the silencing structure 100 can be supported on the step part 331 to support the whole silencing structure 100, meanwhile, the positioning part 25 is arranged on the outer peripheral surface of the annular rib 23 in the silencing structure 100, and the positioning part 25 can be correspondingly embedded into the positioning groove 332, so that the silencing structure 100 can be installed.

Further, the stepped portion 331 may extend along the inner circumferential surface of the handle assembly 300 to increase the contact area between the flow guiding portion 10 and the stepped portion 331, thereby improving the installation stability of the sound attenuating structure 100. In addition, a plurality of positioning grooves 332 may be formed on the inner peripheral surface of the handle assembly 300, and a plurality of positioning portions 25 may be formed on the outer peripheral surface of the annular rib 23 correspondingly, so that the plurality of positioning portions 25 are respectively and correspondingly mounted in the plurality of positioning grooves 332, thereby improving the mounting stability of the silencing structure 100.

In some embodiments of the present utility model, the fan assembly 400 extends along the airflow direction, the guide portion 10 extends along the airflow direction, and the axis of the fan assembly 400 may be collinear or parallel to the axis of the guide portion 10, it may be appreciated that when the airflow passes through the guide portion 10, the airflow may flow to the fan assembly 400 in a straight direction, or may flow to the fan assembly 400 by deflecting at a smaller angle, so as to reduce turbulence and thus reduce noise of the blower 1000.

In some embodiments of the present utility model, the handle assembly 300 extends in an up-down direction (referring to the up-down direction in fig. 4, and the up-down direction may be the same as the axial direction), the fan assembly 400 has a first air inlet end and a first air outlet end, the air guiding portion 10 has a second air inlet end and a second air outlet end, and the first air inlet end and the second air outlet end are opposite in the up-down direction, so that the air flow passing through the air guiding portion 10 may enter the fan assembly 400 along the shortest path, thereby avoiding turbulence formed between the air guiding portion 10 and the fan assembly 400, and reducing noise. In addition, the handle assembly 300 extends in the up-down direction, so that structural members such as the fan assembly 400 and the silencing structure 100 can be conveniently assembled into the handle assembly 300 in the up-down direction, and convenience in assembly is improved.

It should be added that when the air force in the handle assembly 300 flows along the air flow direction, the air force can sequentially pass through the second air inlet end, the second air outlet end, the first air inlet end and the first air outlet end.

As shown in fig. 4 to 8, in some embodiments of the present utility model, the handle assembly 300 may include a housing 320 and a bracket 330, the bracket 330 may be sleeved in the housing 320, wherein the fan assembly 400 and the air guide 10 may be mounted on the bracket 330; specifically, the holder 330 may be mounted on the inner circumferential surface of the case 320, and the holder 330 may be configured to be structurally adapted to the inner circumferential surface of the case 320 to improve the mounting strength, and further, the stepped portion 331 and the positioning groove 332 may be configured on the inner circumferential surface of the holder 330, so that the sound deadening structure 100 may be supported and mounted on the holder 330 to improve the connection strength of the holder 330 and the sound deadening structure 100.

The utility model provides a hair dryer, wherein a main body 200 of the hair dryer comprises a main body 200 and a handle assembly 300, the main body 200 comprises a first end and a second end which are oppositely arranged along the left-right direction (refer to the left-right direction in fig. 4), wherein the first end is provided with a rear cover and a lamplight display, the second end is provided with an air outlet 210, and an air inlet 311 is arranged below the handle assembly 300. The main body 200 is provided therein with a heating wire, and an air outlet structure is provided at an end of the main body 200, and an air outlet 210 is formed on the air outlet structure.

In some embodiments of the present utility model, the handle assembly 300 may include an inlet air filter section at the end of the handle, the inlet air filter section including a housing, a filter mesh within the housing, and a filter holder 330 mounted to support the filter mesh. The filter screen and filter support 330 are typically an assembly or a single, independent part.

In some specific examples of the utility model, the blower includes a deflector portion 10 (i.e., deflector portion 10) located within the handle assembly 300, the deflector portion 10 being located between the motor assembly (i.e., blower assembly 400) and the intake air filter portion, the blower assembly 400 including a fan unit. The deflector 10 is located upstream of the fan unit. The handle assembly 300 has an airflow passage 21 therein, and airflow entering the airflow path from the airflow inlet passes through the deflector 10 and enters the fan assembly 400.

In some embodiments of the present utility model, the blower further includes a positioning portion 25 and a connecting portion 20 connecting the deflector portion 10 and the positioning portion 25. The blower is provided with air inlet cotton (i.e. the silencing piece 500) which covers at least part of the space enclosed by the connecting part 20 for shock absorption and noise reduction. I.e. the structure extending upwards from the flow guiding part 10 is mainly used for pressing the air inlet cotton for positioning the air inlet cotton.

The air inlet cotton can absorb part of noise on one hand and reduce the sound feeling of the whole machine; on the other hand, the air inlet cotton is generally circumferentially arranged in a large-scale surrounding manner, and even in an annular arrangement, so that the air flow can be gathered to flow to the fan assembly 400 without causing unnecessary loss due to collision with the inner wall of the handle assembly 300.

In some specific examples of the utility model, the minimum spacing between the end of the fan assembly 400 and the deflector 10 is H, wherein the spacing H is 11mm-20mm. In a preferred embodiment, the spacing H is 15mm-18mm. When the distance H is too small, the flow velocity of the air flow passing through the flow guiding part 10 is larger, the impact force of the air flow on the fan unit is larger, larger noise can be generated, and the user experience is poor; when the distance H is too large, the air flow can easily flow after passing through the flow guide part 10, the efficiency of the air flow is affected, noise is generated due to the flow disturbance, the user experience is poor, and the length and the size requirements of the handle assembly 300 are met by 11mm-20mm, so that the air flow is well noise-reduced.

Therefore, the range of airflow is wider, the flow speed is gradually reduced, the buffer effect is realized on the airflow, on one hand, the impact of the airflow on the fan unit is weakened, on the other hand, the formation of vortex is reduced, the noise is further reduced, and the user experience is better

In some specific examples of the present utility model, the flow guiding portion 10 includes a plurality of through holes (i.e., flow guiding channels 11), and the through holes have a polygonal structure. Through the design of the flow guiding part 10, the air flow can be divided, the large air quantity is prevented from being simultaneously fed into the motor, and compared with the large air quantity which is simultaneously fed into the motor, the noise of the air flow divided by the flow guiding part 10 is smaller.

In some specific examples of the present utility model, in order to be able to lay out more polygons, two adjacent polygons are co-bordered, so that the air inlet area is increased while carding the air inlet;

in some specific examples of the present utility model, the polygon is a hexagonal structure, which is more beneficial to layout and planning of the through holes in the space.

In some specific examples of the utility model, the central axis of the fan assembly 400 is collinear or parallel with the central axis of the deflector 10. The air flow flowing through the flow guiding part 10 can flow to the fan unit along the straight line direction as far as possible, and a small part of air flow which cannot flow to the fan unit along the straight line direction can be blown to the fan unit only by deflecting a small angle, so that the flowing direction of the air flow is approximately uniform, the small vortex of the air flow formed in the air flow passage is reduced, the formation of turbulence is reduced, and the noise generated by the turbulence is reduced; and the flow efficiency of the air flow can be improved; the assembly of the fan unit and the noise reduction structure is also facilitated.

In some embodiments of the utility model, the through-hole includes a first opening proximate to the fan assembly 400 and a second opening relatively distant from the motor from the first opening, the first opening being the same size as the second opening.

In some specific examples of the present utility model, the through holes are used for the air flow to pass through the guide part 10, so that the through holes form a guiding effect on the air flow, so that the air flow can uniformly flow from the guide part 10 to the fan unit in a small form, and vortex formed in the air flow passage is reduced, thereby reducing noise;

in some specific examples of the present utility model, the area of the first opening of the through hole is larger than the area of the second opening, so that the diversion hole is in a substantially diffuse state along the airflow flowing direction, when the airflow flows out of the through hole, the airflow flowing range is wider, the flow speed is gradually reduced, the buffering effect is achieved on the airflow, on one hand, the impact of the airflow on the fan unit is weakened, on the other hand, the formation of vortex is reduced, and further noise is reduced, and the user experience is better.

In the description of the present utility model, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (13)

1. A silencing structure of a blower device, comprising:

the device comprises a flow guiding part (10), wherein a plurality of flow guiding channels (11) are arranged on the flow guiding part (10), the flow guiding channels (11) are arranged on the flow guiding part (10) side by side and are mutually separated, and the flow guiding channels (11) extend along the axial direction of the flow guiding part (10);

the connecting part (20), connecting part (20) with water conservancy diversion portion (10) link to each other, and follow the circumference extension of water conservancy diversion portion (10), connecting part (20) inboard has air current passageway (21), be equipped with hollow out construction (22) on the perisporium of connecting part (20).

2. The sound deadening structure according to claim 1, characterized in that the connecting portion (20) includes:

-an annular rib (23), said annular rib (23) extending in said circumferential direction and being spaced from said flow guide (10) in said axial direction;

the connecting ribs (24) are connected between the annular ribs (23) and the flow guide part (10), the connecting ribs (24) are circumferentially spaced apart, and hollow structures (22) are formed between the adjacent connecting ribs (24).

3. The sound attenuating structure according to claim 2, wherein a positioning portion (25) is provided on an outer peripheral surface of the annular bead (23), the positioning portion (25) being configured as a boss provided on the outer peripheral surface of the annular bead (23).

4. The sound attenuating structure according to claim 1, characterized in that the flow guiding channels (11) are configured as polygonal holes and adjacent two flow guiding channels (11) are co-bordered.

5. The sound attenuating structure according to claim 4, characterized in that the flow guiding channels (11) are configured as holes of decreasing or constant size in the direction of the air flow.

6. A blowing apparatus, characterized by comprising:

-a main body (200), the main body (200) having an air outlet (210);

a handle assembly (300), the handle assembly (300) being connected to the main body (200) and having an air inlet (311);

a fan assembly (400), the fan assembly (400) being disposed within the handle assembly (300);

the sound attenuating structure of a blowing device according to any one of claims 1-5, said sound attenuating structure being provided between said fan assembly (400) and said air intake (311).

7. A blowing device according to claim 6, characterized in that the minimum distance between the end of the fan assembly (400) and the deflector (10) in the direction of the air flow in the handle assembly (300) is H, the distance H being not less than 11mm and not more than 20mm.

8. A blowing device according to claim 6, wherein said deflector (10) is configured as a plate-like shape in a direction perpendicular to the air flow direction in said handle assembly (300), said deflector channel (11) extending in said air flow direction.

9. A blowing device according to claim 6, characterized in that the blowing device further comprises a sound damping member (500), the sound damping member (500) covering the hollow structure (22).

10. The blowing device according to claim 9, wherein a relief space (600) corresponding to the hollow structure (22) is provided on an inner peripheral surface of the handle assembly (300), and the silencing member (500) is embedded in at least one of the hollow structure (22) and the relief space (600).

11. A blowing device according to claim 6, characterized in that the handle assembly (300) is provided with a stepped portion (331) and a positioning groove (332) on its inner peripheral surface, the sound attenuating structure is supported on the stepped portion (331), and the sound attenuating structure is provided with a positioning portion (25) embedded in the positioning groove (332).

12. A blowing device according to claim 6, wherein the fan assembly (400) extends in the direction of the air flow, the flow guide (10) extends in the direction of the air flow, the axis of the fan assembly (400) being collinear or parallel with the axis of the flow guide (10);

and/or the handle assembly (300) extends along the up-down direction, the fan assembly (400) is provided with a first air inlet end and a first air outlet end, the flow guide part (10) is provided with a second air inlet end and a second air outlet end, and the first air inlet end is opposite to the second air outlet end along the up-down direction.

13. A blowing device according to claim 6, wherein said handle assembly (300) comprises:

a housing (320);

a bracket (330), wherein the bracket (330) is sleeved in the shell (320),

wherein, fan subassembly (400) the water conservancy diversion portion (10) all install on support (330).