CN217354902U - Air blower and automobile - Google Patents
Air blower and automobile Download PDFInfo
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- CN217354902U CN217354902U CN202221248126.7U CN202221248126U CN217354902U CN 217354902 U CN217354902 U CN 217354902U CN 202221248126 U CN202221248126 U CN 202221248126U CN 217354902 U CN217354902 U CN 217354902U
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Abstract
The application relates to the technical field of transportation equipment, in particular to an air blower and an automobile, wherein the air blower comprises a volute part, an air inlet part and a sound absorption part, the air inlet part is arranged on the volute part, an air inlet channel is formed in the air inlet part, and the air inlet channel is communicated with the volute part; the silencing part is arranged in the air inlet channel. According to the air blower and the automobile, the noise generated under the impact action of the air flow of the air inlet part is effectively reduced by arranging the silencing part on the air inlet channel.
Description
Technical Field
The application relates to the technical field of transportation equipment, in particular to an air blower and an automobile.
Background
With the development of the market, the requirements on the noise standard in the vehicle are gradually strict, which makes the noise reduction design of the vehicle air conditioner more challenging.
However, the air blower of the present vehicle air conditioner generally adopts an air inlet arranged perpendicular to the impeller shaft, and when the airflow enters the impeller through the air inlet, the airflow is turned, so that the airflow generates a vortex at the side of the air intake box (see an airflow simulation diagram of the air intake box of the existing air blower shown in fig. 3), and under the effect of the vortex repeatedly impacting the wall of the air intake box, the noise is large during the operation of the air blower.
In addition, the intake efficiency of the blower inlet is low because of the generation of the vortex.
SUMMERY OF THE UTILITY MODEL
The utility model provides an aim at provides a blower and car to solve the vortex that exists among the prior art to a certain extent and strike the box wall of inlet box repeatedly making the blower working process in, the great technical problem of noise.
According to a first aspect of the present application, there is provided a blower comprising:
the worm-gear part is arranged on the worm-gear part,
the air inlet part is arranged on the volute part, an air inlet channel is formed on the air inlet part, and the air inlet channel is communicated with the volute part;
and the silencing part is arranged on the air inlet channel.
Preferably, the air inlet portion is disposed at one side of the volute portion in an axial direction of the volute portion, the air inlet portion extends in a predetermined direction, the predetermined direction is perpendicular to the axial line, one end of the air inlet portion in the predetermined direction forms an air inlet, and the sound attenuation portion is disposed opposite to the air inlet.
According to the technical characteristics, the silencing part is arranged opposite to the air inlet, so that the air flow entering the air inlet directly flows to the silencing part, and the silencing effect of the silencing part is improved.
Preferably, in the predetermined direction, from one end of the air inlet far away from the air inlet, the width of the sound-deadening portion is tapered, so that one end of the sound-deadening portion close to the air inlet forms a wind-breaking tip.
According to the technical characteristics, the airflow forming the vortex is broken and scattered through the wind breaking tip under the action of the wind breaking tip, so that the probability of the vortex is effectively reduced.
Preferably, the volute part is formed with an air outlet, and the air outlet is arranged on one side of the volute part, which is far away from the air inlet, in the predetermined direction;
defining a plane passing through the axis in the predetermined direction as an interface;
the sound eliminating part and the air outlet are respectively arranged on two sides of the interface.
According to the technical characteristics, a part of airflow is convenient to be guided to flow to the air outlet.
Preferably, the sound deadening portion is curved to a side away from the interface as viewed in the axial direction.
According to the above technical feature, the flow of the part toward the air outlet is further increased.
Preferably, viewed in the axial direction;
a first edge of one side of the sound attenuation part far away from the interface is formed into a first circular arc, and the first circular arc is bent to one side far away from the interface;
the second edge of the sound attenuation part on the side close to the interface comprises a second circular arc and a third circular arc which are in inscribed connection with each other, and the second circular arc and the third circular arc are both bent towards the side away from the interface.
According to the technical characteristics, the airflow is further guided to the air outlet, and the other part of the airflow split by the wind breaking tip is guided to flow to the impeller part, so that the impact of the airflow on the impeller part is reduced.
Preferably, the blower further comprises an impeller part, the impeller part is arranged on the volute part, the impeller part is coaxially arranged with the volute part, and the volute part is communicated with the air inlet channel through the impeller part.
Preferably, the sound deadening portion includes a first plate portion provided along the first edge and a second plate portion provided along the second edge.
Preferably, the sound-absorbing filling part is arranged in a space surrounded by the first plate part, the second plate part and the air inlet part;
the first plate part and the second plate part are both formed into perforated plates, the perforated plates are formed into plates with the aperture of 1-3mm, and the perforation rate of the perforated plates is 25% -50%.
According to the technical characteristics, the sound attenuation effect of the sound attenuation part is further enhanced, and meanwhile, the perforated plate with the perforation rate of 25% -50% can effectively adsorb medium-high frequency noise generated by the air inlet box.
According to a second aspect of the present application, there is provided an automobile including the blower according to any one of the above technical solutions, so that all the beneficial technical effects of the blower are achieved, and the details are not repeated herein.
Compared with the prior art, the beneficial effect of this application is:
the application provides an air-blower, through set up noise reduction portion at inlet air duct, reduced the noise that produces under the air inlet portion air current impact effectively.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic axial view of a blower according to an embodiment of the present disclosure;
fig. 2 is a schematic axial structure diagram of an air inlet box of a blower according to an embodiment of the present disclosure;
FIG. 3 is a simulation diagram of airflow simulation of an inlet box of a conventional blower;
fig. 4 is an air flow simulation diagram of an air inlet box of the blower provided by the present application.
Reference numerals:
100-an air inlet box; 110-an air inlet; 200-a sound-deadening part; 201-a wind breaking tip; 202-a first edge; 203-a second edge; 210-a first plate; 220-a second plate; 230-sound absorbing filling part; 300-an impeller; 400-volute; 410-an air outlet; 411-volute tongue.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments.
The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
A blower and an automobile according to some embodiments of the present application are described below with reference to fig. 1 and 2.
Referring to fig. 1 and 2, an embodiment of the present application provides a blower including a scroll 400, an inlet box 100, and a sound-deadening portion 200. Specifically, the inlet box 100 is disposed in the volute 400, the inlet box 100 is formed with an inlet channel, the inlet channel is communicated with the volute 400, and the muffling portion 200 is disposed in the inlet channel, so that noise generated by the inlet box 100 in the working process of the blower is effectively reduced under the effect of the muffling portion 200 disposed in the inlet channel.
Preferably, as shown in fig. 1, the air inlet box 100 may be disposed at one side of the scroll case 400 in an axial direction of the scroll case 400, the air inlet box 100 extends in a predetermined direction, the predetermined direction is perpendicular to the axial line, and one end of the air inlet box 100 in the predetermined direction forms an air inlet 110.
Further, as shown in fig. 1, the blower may further include an impeller 300, the impeller 300 is disposed on the volute 400, the impeller 300 is disposed coaxially with the volute 400, and the volute 400 is communicated with the air intake passage via the impeller 300.
In an embodiment, as shown in fig. 1 and 2, the sound-deadening portion 200 may be disposed opposite to the air inlet 110, such that the sound-deadening portion 200 is disposed opposite to the air inlet 110, so that the air flow entering the air inlet 110 directly flows to the sound-deadening portion 200, thereby improving the sound-deadening effect of the sound-deadening portion 200.
Preferably, as shown in fig. 1 and fig. 2, in the predetermined direction, from one end of the air inlet 110 far away from the air inlet 110, the width of the sound-deadening portion 200 is tapered, so that one end of the sound-deadening portion 200 close to the air inlet 110 forms a breaking tip 201, and thus, the breaking tip 201 is arranged opposite to the air inlet 110, so that the air flow entering the air inlet 110 is divided under the action of the breaking tip 201 (taking the orientation shown in fig. 1 as an example, the air flow flowing to the upper side of the breaking tip 201 is a first part of air flow, and the air flow flowing to the lower side of the breaking tip 201 is a second part of air flow).
In an embodiment, as shown in fig. 1, the volute 400 is formed with an air outlet 410, and the air outlet 410 is disposed on a side of the volute 400 facing away from the air inlet 110 in the predetermined direction. Fig. 1 is only an example in which the air outlet is disposed along a predetermined direction (i.e., the predetermined angle described below is 180 °), but is not limited thereto, and not shown, and the position direction of the air outlet may also form a predetermined angle with the predetermined direction depending on the structure of the blower arrangement, for example, the predetermined angle may be 0 °, 90 °, an acute angle, an obtuse angle, or the like.
A plane passing through the axis in the predetermined direction is defined as an interface.
Preferably, as shown in fig. 1, the sound-deadening portion 200 and the air outlet 410 are respectively disposed at two sides of the interface, so as to guide the first portion of the air flow to the air outlet 410.
Preferably, as shown in fig. 1, the sound-deadening portion 200 is curved to the side away from the interface as viewed in the axial direction, so that the flow rate of the first partial flow is increased to further prevent the generation of the vortex.
Optionally, the volute 400 may further include a volute tongue 411, the structure of the volute tongue 411 is the existing structure of the volute 400, and a person skilled in the art can know the specific position and structure of the volute 400 where the volute tongue 411 is disposed by the name of the volute tongue 411, which is not described in detail. Taking the orientation shown in fig. 1 as an example, the tip of the volute tongue 411 may be formed as the lower side edge of the outlet 410. The interface passes over the tip of the volute tongue 411. In other words, the end of the second edge 203 close to the air outlet 410 is located at the lower portion of the tip of the volute tongue 411 to prevent the sound-deadening portion 200 from blocking the air outlet 410, so that the first portion of the airflow can better flow out of the air outlet 410, and the probability of backflow of the airflow when the airflow passes through the volute tongue 411 is effectively reduced.
Specifically, as shown in fig. 1, a first edge 202 of the sound-deadening portion 200 on the side away from the interface is formed as a first circular arc which is curved to the side away from the interface (i.e., to the lower left of the curved axis shown in fig. 1), so that the second partial airflow is guided to the blades of the impeller 300 along the first circular arc, so as to reduce the impact of the airflow on the blades and further reduce the noise generated by the impact of the airflow on the blades.
Preferably, the second edge 203 of the sound-deadening portion 200 on the side close to the interface includes a second circular arc and a third circular arc which are inscribed and connected with each other, the second circular arc and the third circular arc are both curved to the side away from the interface, and by the arrangement of the second circular arc and the third circular arc which are inscribed and connected with each other, the curvature of the second edge 203 which is curved to the lower left is increased, and the airflow volume of the first partial airflow is further increased, as shown in fig. 4, so that the first partial airflow flows more uniformly in the circumferential direction of the impeller 300.
Referring to fig. 3 and 4, the air flow distribution of the air inlet box is respectively shown in two states of not providing the sound-deadening portion 200 (fig. 3) and providing the sound-deadening portion 200 (fig. 4) under the same test environment, and it can be seen from comparison in the figures that the air inlet box provided with the sound-deadening portion 200 significantly reduces the generation of the eddy flow in the air inlet box 100 under the action of the air flow guidance of the sound-deadening portion 200.
In an embodiment, as shown in fig. 2, the illustrated silencer component 200 may include a first plate 210 and a second plate 220, the first plate 210 being disposed along the first edge 202 and the second plate 220 being disposed along the second edge 203.
Preferably, as shown in the figure, the sound-absorbing filling part 230 may be further included in the sound-absorbing filling part 200, and the sound-absorbing filling part 230 is disposed in a space surrounded by the first plate 210, the second plate 220 and the air inlet box 100, so as to further improve the sound-absorbing effect of the sound-absorbing part 200.
Preferably, the sound-absorbing filling part 230 may be formed of a sound-absorbing material such as rock wool, glass wool, or the like.
Preferably, as shown in fig. 2, the first plate 210 and the second plate 220 may be formed as perforated plates so that air flow, sound waves, or the like penetrates the first plate 210 and the second plate 220 to prevent the air flow from striking the noise-canceling part 200 to generate noise.
Preferably, the perforated plate may be formed as a plate having a thickness of 1-3mm to ensure sufficient impact strength of the noise-canceling portion 200.
Preferably, the perforated plate is formed with a plurality of uniformly distributed through holes, and the diameter of each through hole is 3-7 mm.
Preferably, the perforated plate has a perforation rate of 25% to 50%, so that the adsorption capacity of the medium and high frequency noise generated by the air inlet 110 is further improved, and the noise reduction effect of the noise reduction part 200 is further improved.
The embodiment of the application further provides an automobile which comprises the blower in any one of the embodiments, so that all the beneficial technical effects of the blower are achieved, and the details are not repeated herein.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A blower, characterized in that the blower comprises:
the worm-gear part is arranged on the worm-gear part,
the air inlet part is arranged on the volute part and is provided with an air inlet channel which is communicated with the volute part;
and the silencing part is arranged on the air inlet channel.
2. The blower according to claim 1, wherein the air inlet portion is provided at one side of the volute portion in an axial direction of the volute portion, the air inlet portion extends in a predetermined direction, the predetermined direction is perpendicular to the axial line, one end of the air inlet portion in the predetermined direction forms an air inlet, and the sound deadening portion is provided opposite to the air inlet.
3. The blower according to claim 2, wherein the width of the sound-deadening portion is tapered from an end of the air intake opening away from the air intake opening in the predetermined direction such that an end of the sound-deadening portion near the air intake opening forms a blowing tip.
4. The blower according to claim 3, wherein the volute portion is formed with an outlet disposed on a side of the volute portion facing away from the inlet in the predetermined direction;
defining a plane passing through the axis in the predetermined direction as an interface;
the sound eliminating part and the air outlet are respectively arranged on two sides of the interface.
5. The blower according to claim 4, wherein the sound deadening portion is curved to a side away from the interface as viewed in the axial direction.
6. The blower according to claim 5, wherein, viewed in the axial direction;
a first edge of one side of the sound attenuation part far away from the interface is formed into a first circular arc, and the first circular arc is bent to one side far away from the interface;
a second edge of the sound-deadening portion on a side close to the interface includes a second circular arc and a third circular arc that are inscribed and connected to each other, and both the second circular arc and the third circular arc are curved to a side away from the interface.
7. The blower according to any one of claims 2-6, further comprising an impeller portion disposed in the volute portion, the impeller portion being disposed coaxially with the volute portion, the volute portion being in communication with the air inlet channel via the impeller portion.
8. The blower of claim 6, wherein the sound attenuating portion includes a first plate portion disposed along the first edge and a second plate portion disposed along the second edge.
9. The blower according to claim 8,
the sound absorption filling part is arranged in a space surrounded by the first plate part, the second plate part and the air inlet part;
the first plate part and the second plate part are both formed into perforated plates, the perforated plates are formed into plates penetrated by apertures of 1-3mm, and the perforation rate of the perforated plates is 25% -50%.
10. An automobile, characterized by comprising the blower according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221248126.7U CN217354902U (en) | 2022-05-23 | 2022-05-23 | Air blower and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221248126.7U CN217354902U (en) | 2022-05-23 | 2022-05-23 | Air blower and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217354902U true CN217354902U (en) | 2022-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221248126.7U Active CN217354902U (en) | 2022-05-23 | 2022-05-23 | Air blower and automobile |
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| CN (1) | CN217354902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116123148A (en) * | 2023-02-20 | 2023-05-16 | 扬州大学 | Novel bulb body structure with regular pits on surface based on energy conservation and noise reduction |
-
2022
- 2022-05-23 CN CN202221248126.7U patent/CN217354902U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116123148A (en) * | 2023-02-20 | 2023-05-16 | 扬州大学 | Novel bulb body structure with regular pits on surface based on energy conservation and noise reduction |
| CN116123148B (en) * | 2023-02-20 | 2023-09-29 | 扬州大学 | Novel bulb body structure with regular pits on surface based on energy conservation and noise reduction |
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