CN213419398U - Air duct assembly and household appliance - Google Patents
Air duct assembly and household appliance Download PDFInfo
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- CN213419398U CN213419398U CN202022440487.9U CN202022440487U CN213419398U CN 213419398 U CN213419398 U CN 213419398U CN 202022440487 U CN202022440487 U CN 202022440487U CN 213419398 U CN213419398 U CN 213419398U
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Abstract
The utility model discloses a wind channel subassembly, including the spiral case, spiral case detachable is connected with the spiral tongue, and spiral case and spiral tongue are formed with the wind channel, are provided with the wind wheel in the wind channel, and one side of wind wheel is provided with rotating-structure, still including setting up the backflow prevention structure at the wind channel both ends, and after the air current got into the wind wheel, the backflow prevention structure of wind channel both sides reduced the air input at wind wheel both ends air input increase wind wheel middle part for the whole air outlet discharge of following of gas that gets into the wind wheel. Still disclose a domestic appliance, including the casing, be provided with in the casing like above the wind channel subassembly. The utility model provides a wind channel subassembly through increasing backflow-preventing structure in through-flow wind channel air intake department, prevents that the air current from the air wheel air intake that flows back, and the pressure of increase air intake department reduces the air input at air wheel both ends, prevents that the air-out that the gas blockage caused is not smooth, effectively improves the surge phenomenon in through-flow wind channel.
Description
Technical Field
The utility model relates to the technical field of household appliances, especially, relate to a wind channel subassembly and household appliance.
Background
The cross-flow wind wheel and the air duct assembly are generally applied to household appliances such as tower fans, cooling fans, air conditioners and the like due to simple structure, small size and convenience. Due to the limitation of the appearance size, the air inlet area and the air outlet area of the whole machine are different in design structure, and the cross flow wind wheel is complex in flowing during operation, so that the size of the air inlet area and the size of the air outlet area are difficult to accurately grasp. Because the design air-out area is unreasonable, surging is easily caused, namely air-out is uneven and is suddenly reduced, and the performance of the whole machine is influenced.
Chinese patent No. CN210623187U proposes a surge-proof cross-flow fan blade and an air conditioner, which are configured with a pressure difference balancing assembly (small axial flow fan blade) at two ends of the cross-flow fan blade to compensate air volume and wind speed at two ends and balance pressure difference, so as to achieve the purpose of resisting surge of the whole air conditioner. However, the scheme is more complex in the manufacturing process of the cross-flow fan blade and higher in manufacturing cost. In addition, a pressure difference balancing piece is added in the fan blade, so that the fan blade has the function of balancing air flow, but turbulence is easily caused, and abnormal noise is generated.
Therefore, it is desirable to design an air duct assembly that can effectively prevent surge and has low manufacturing cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wind channel subassembly and domestic appliance to the wind channel subassembly operation in-process that mentions among the solution background art produces the unstable technical problem of surge phenomenon air-out easily.
In order to achieve the above object, the utility model discloses a concrete technical scheme as follows of wind channel subassembly and domestic appliance:
the utility model provides an air duct assembly, includes the spiral case, spiral case detachable is connected with the spiral tongue, and spiral case and spiral tongue are formed with the wind channel, are provided with the wind wheel in the wind channel, and one side of wind wheel is provided with rotating-structure, still including setting up the backflow prevention structure at the wind channel both ends, and after the air current got into the wind wheel, the backflow prevention structure of wind channel both sides reduced the air input at wind wheel both ends air input increase wind wheel middle part for the gas that gets into the wind wheel is whole to be discharged from the air outlet.
Furthermore, the backflow prevention structure is a flow baffle plate which is fixedly connected with the volute tongue.
Furthermore, the flow baffle comprises a mounting plate, a fixing hole is formed in the mounting plate, and the flow baffle is fixedly connected with the connecting surface of the volute tongue through a screw.
Furthermore, one side fixedly connected with of mounting panel keeps off and flows the board body, keeps off and flows the body that the board and the wind wheel of board and be provided with certain interval.
Further, the distance between the inner wall of the flow baffle and the outer wall of the wind wheel is set to be more than or equal to 5mm and less than or equal to 20 mm.
Furthermore, the flow baffle body is of a semicircular plate-shaped structure, one end of the flow baffle body is fixedly connected with the volute tongue, and the other end of the flow baffle body extends to the volute, so that the flow baffle body covers the outside of the wind wheel.
Further, the length of the flow baffle body for shielding the wind wheel in the horizontal direction is set to be more than or equal to 6mm and less than or equal to 25 mm.
Further, the longest length of the baffle for shielding the wind wheel is not more than the length of the 1/4 wind wheel.
Further, the wind wheel and the volute are arranged at intervals, and the distance between the wind wheel and the volute is set to be larger than or equal to 3mm and smaller than or equal to 5 mm.
A household appliance comprises a shell, wherein the air duct assembly is arranged in the shell.
The utility model discloses a wind channel subassembly and domestic appliance have following advantage:
the utility model provides a wind channel subassembly through increasing backflow-preventing structure in through-flow wind channel air intake department, prevents that the air current from the air wheel air intake that flows back, and the pressure of increase air intake department reduces the air input at air wheel both ends, prevents that the air-out that the gas blockage caused is not smooth, effectively improves the surge phenomenon in through-flow wind channel.
Drawings
Fig. 1 is a schematic structural view of an air duct assembly according to the present invention;
fig. 2 is a cross-sectional view a-a of fig. 1 of the present invention;
FIG. 3 is an exploded view of the air duct assembly of the present invention;
fig. 4 is a schematic structural view of the flow baffle of the present invention.
The reference numbers in the figures illustrate: 1. a volute; 2. a wind wheel; 3. a motor; 4. a flow baffle plate; 41. a flow baffle body; 42. mounting a plate; 43. a fixing hole; 44. a through groove; 5. a volute tongue.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, the following description is made in detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, the utility model provides a wind channel subassembly, including spiral case 1, spiral case 1 detachable is connected with volute tongue 5, and spiral case 1 and volute tongue 5 are formed with the wind channel, are provided with wind wheel 2 in the wind channel, and one side of wind wheel 2 is provided with rotating-structure, and the both ends in wind channel are provided with backflow prevention structure, and after the air current got into wind wheel 2, the backflow prevention structure of wind channel both sides reduced the air input at 2 both ends air input increase wind wheel 2 middle parts of wind wheel, made the whole air outlet discharges of following of the gas that gets into wind wheel 2.
Among the current wind channel subassembly, wind wheel 2 rotates, the air formation air current is inhaled on the upper portion of wind wheel 2, because the length of wind wheel 2 is longer, the both ends air input of wind wheel 2 is less, the air input at 2 middle parts of wind wheel is more, thereby make wind channel internal pressure big, simultaneously because the unstability of eccentric vortex, the inside removal of eccentric vortex can make wind channel both ends air current to the air inlet flow, cause the backward flow, the backward flow process can make whole wind channel have surge phenomenon, the air-out is unstable, neglect for a short time.
The rotating structure is a motor 3 and is fixedly connected with a rotating shaft arranged on the wind wheel 2, so that the motor 3 rotates to drive the wind wheel 2 to rotate.
As shown in fig. 4, the backflow prevention structure is a flow baffle 4, the flow baffle 4 is fixedly connected with the volute tongue 5, and the connecting surface of the flow baffle 4 and the volute tongue 5 is fixedly connected, so that the air inflow at the two ends of the wind wheel 2 is reduced, the air inflow of the part of the wind wheel 2 without the backflow prevention structure is increased, the air flow of the wind wheel 2 is balanced, and the air flow is prevented from flowing back to the inlet from the two ends. The anti-backflow structure is mainly matched with a through-flow air channel for use, and the air outlet stability of the air channel assembly is guaranteed.
The flow baffle plate 4 comprises a mounting plate 42, a fixing hole 43 is formed in the mounting plate 42, and the connecting surface of the flow baffle plate 4 and the volute tongue 5 is fixedly connected through a screw.
One side of the mounting plate 42 is fixedly connected with a flow baffle body 41, a certain distance is arranged between the body of the flow baffle 4 and the wind wheel 2, and the flow baffle body 41 is arranged outside the wind wheel 2.
The baffle body 41 is a semicircular plate-shaped structure, one end of the baffle body 41 is fixedly connected with the volute tongue 5, and the other end of the baffle 4 extends to the volute 1, so that the baffle body 41 covers the outside of the wind wheel 2.
The connection between the mounting plate 42 and the flow baffle body 41 is provided with a through groove 44, which increases the toughness of the flow baffle body 41, so that the flow baffle body 41 moves in one direction relative to the mounting plate 42, and the telescopic mobility of the flow baffle 4 is increased.
In order to enable the backflow prevention structure to generate the best backflow prevention effect on the air duct assembly, the length of the flow baffle body 41 for shielding the wind wheel 2 in the horizontal direction is set to be T1, and the value range of T1 is 6mm or more and T1 or more and 25mm or less. The wind wheel 2 is arranged in an air channel formed by enclosing the volute 1 and the volute tongue 5, a distance is arranged between the wind wheel 2 and the volute 1, the distance between the wind wheel 2 and the volute 1 is delta, and delta is more than or equal to 3mm and less than or equal to 5 mm. The shape of the baffle body 41 is the same as that of the outer wall of the wind wheel 2, the distance between any point on the baffle 4 and the outer wall of the wind wheel 2 is the same, the distance between the baffle 4 and the wind wheel 2 is d, and d is not less than 5mm and not more than 20 mm. The distance between the flow baffle 4 and the wind wheel 2 is not less than the distance between the wind wheel 2 and the volute 1, and if the distance between the flow baffle 4 and the wind wheel 2 is selected to be too small, the noise is not good; if the distance between the flow baffle 4 and the wind wheel 2 is selected to be larger than 20mm, the backflow preventing effect cannot be achieved.
The backflow preventing structure comprises two flow blocking plates 4, the two flow blocking plates 4 are similar in structure, the difference lies in that the length of the flow blocking plates 4 for blocking the wind wheel 2 in the horizontal direction can be set to be T1 in the same way, and also can be different, and specific limitation is not made here.
Other embodiments are provided for the structure of the flow baffle 4, the flow baffle 4 is an integrally formed structure and is separately installed on the volute tongue 5 as a part, and the flow baffle 4 can also be integrally formed with the volute 1 and the volute tongue 5 by injection molding, but the characteristics and the functions of the flow baffle 4 are kept unchanged.
The utility model also provides a household appliance, including the casing, be provided with more than in the casing the wind channel subassembly. The specific household appliance can be one of an air conditioner, a tower fan and a cooling fan, and only the household appliance with the through-flow air channel arranged inside can be used.
The utility model discloses increase backflow-preventing semicircle ring platelike structure at through-flow wind channel air intake, increase inlet pressure prevents the air current from 2 refluxes of wind wheel to the air intake, prevents that the air-out that the gas blockage caused is not smooth.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.
Claims (10)
1. The utility model provides an air duct assembly, including spiral case (1), spiral case (1) detachable is connected with spiral tongue (5), spiral case (1) and spiral tongue (5) are formed with the wind channel, be provided with wind wheel (2) in the wind channel, one side of wind wheel (2) is provided with rotating-structure, a serial communication port, still including setting up the backflow prevention structure at the wind channel both ends, after the air current got into wind wheel (2), the backflow prevention structure at wind channel both ends reduced the air input increase wind wheel (2) the air input at middle part of wind wheel (2) tip, make the gas that gets into wind wheel (2) all discharge from the air outlet.
2. The air duct assembly according to claim 1, wherein the backflow preventing structure is a baffle plate (4), and the baffle plate (4) is fixedly connected with the volute tongue (5).
3. The air duct assembly according to claim 2, characterized in that the baffle plate (4) comprises a mounting plate (42), the mounting plate (42) is provided with a fixing hole (43), and the connecting surface of the baffle plate (4) and the volute tongue (5) is fixedly connected through a screw.
4. The air duct assembly according to claim 3, characterized in that a baffle body (41) is fixedly connected to one side of the mounting plate (42), and the baffle body (41) and the wind wheel (2) are arranged at a certain distance.
5. The air duct assembly according to claim 4, characterized in that the distance between the inner wall of the baffle plate (4) and the outer wall of the wind wheel (2) is set to be greater than or equal to 5mm and less than or equal to 20 mm.
6. The wind channel assembly according to claim 4, wherein the baffle body (41) is configured as a semi-circular plate structure, one end of the baffle body (41) is fixedly connected with the volute tongue (5), and the other end of the baffle (4) extends to the volute (1), so that the baffle body (41) covers the outside of the wind wheel (2).
7. The air duct assembly according to claim 2, wherein the length of the baffle plate (4) for shielding the wind wheel (2) in the horizontal direction is set to be greater than or equal to 6mm and less than or equal to 25 mm.
8. The air duct assembly according to claim 2, characterized in that the longest length of the baffle plate (4) shielding the wind wheel (2) is not more than 1/4 wind wheel (2).
9. The air duct assembly according to claim 1, characterized in that the wind wheel (2) and the volute (1) are provided with a spacing, and the distance between the wind wheel (2) and the volute (1) is set to be greater than or equal to 3mm and less than or equal to 5 mm.
10. An electrical household appliance comprising a housing in which is disposed an air duct assembly as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022440487.9U CN213419398U (en) | 2020-10-28 | 2020-10-28 | Air duct assembly and household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022440487.9U CN213419398U (en) | 2020-10-28 | 2020-10-28 | Air duct assembly and household appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213419398U true CN213419398U (en) | 2021-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022440487.9U Active CN213419398U (en) | 2020-10-28 | 2020-10-28 | Air duct assembly and household appliance |
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| Country | Link |
|---|---|
| CN (1) | CN213419398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177947A (en) * | 2020-10-28 | 2021-01-05 | 珠海格力电器股份有限公司 | Air duct assembly and household appliance |
-
2020
- 2020-10-28 CN CN202022440487.9U patent/CN213419398U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177947A (en) * | 2020-10-28 | 2021-01-05 | 珠海格力电器股份有限公司 | Air duct assembly and household appliance |
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