Air duct outlet structure and clothing care machine

Abstract

The present invention relates to an air duct outlet structure and a clothing care machine, wherein the air duct outlet structure includes an air inlet duct, a pressurized air duct, an induced air duct, and a jet duct connected in sequence; the flow cross-sectional area of ​​the pressurized air duct gradually increases along the air flow direction; the flow cross-sectional areas of the induced air duct and the jet duct are both smaller than the flow cross-sectional area of ​​the pressurized air duct. The air duct outlet structure makes full use of the fluid mechanics characteristics, and increases the pressure of the gas in the duct by setting the flow cross-sectional area of ​​the pressurized air duct, and widens the air outlet width in combination with the induced air duct, so that the clothing can be fully cared for along its width; in addition, the flow cross-sectional areas of the induced air duct and the jet duct are set to increase the fluid velocity, thereby effectively enhancing the speed and intensity of the airflow acting on the surface of the clothing, effectively shaping, removing odors, and sterilizing, with better care effects, shortening the care cycle, and improving user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing care machines, and in particular to an air duct outlet structure and a clothing care machine. Background Art

[0002] Clothing care machines are a new generation of consumer products that use steam, high temperature, ventilation, shaking, and drying to care for, sterilize, and deodorize clothing. They are suitable for the care and maintenance of clothes that are not resistant to washing. Existing clothing care machines include one or more air duct circulation systems. Generally, the air duct outlet is set at the top or bottom of the box, and steam and hot air are blown out from the outlet. This design structure is relatively simple and can achieve the care, ironing, and sterilization of clothes. In this setting, since the existing air duct outlet structure has no special settings, the air outlet is far away from the clothes, and the air outlet speed is low, resulting in a low air speed on the surface of the clothes and a low air utilization rate, resulting in low efficiency in clothing care, deodorization, and sterilization. Therefore, it is necessary to extend the care time, increase the humidification amount, and the drying time to achieve the desired effect. This not only consumes more energy, but also gives consumers a bad experience and accelerates the aging of the product. Summary of the Invention

[0003] Based on this, the object of the present invention is to provide an air duct outlet structure, which has the advantages of high air outlet speed, high air utilization rate and good care effect.

[0004] An air duct outlet structure is applied to a clothing care machine, wherein the air duct outlet structure is arranged in an inner cavity of the clothing care machine and is characterized in that it comprises an air inlet duct, a boost duct, an air duct and an injection duct which are connected in sequence;

[0005] A fan is provided in the air inlet duct; the flow cross-sectional area of ​​the pressurized air duct gradually increases along the air flow direction;

[0006] The induced air duct includes an air inlet and an air outlet, the air inlet is connected to the supercharged air duct; the number of the air outlets is at least 2, which are arranged along the extension direction of the induced air duct and are located on both sides of the extension direction of the induced air duct;

[0007] The number of the injection air ducts is at least 2, which are arranged on both sides of the extension direction of the induced air duct and are correspondingly connected to the air outlet of the induced air duct; the injection air ducts on both sides are close to each other along the air flow direction;

[0008] The flow cross-sectional area of ​​the induced air duct and the injection air duct are both smaller than the flow cross-sectional area of ​​the supercharging air duct, and the flow cross-sectional area of ​​the injection air duct is smaller than the flow cross-sectional area of ​​the induced air duct;

[0009] The air conditioner further comprises a flow-increasing structure; the flow-increasing structure comprises a flow-increasing plate and a stepping motor; the number of the flow-increasing plates is at least two, and the flow-increasing plates are movably arranged on both sides of the extension direction of the air-inducing duct and located outside the wall of the ejection duct; a flow-increasing duct is formed between the flow-increasing plates and the wall of the ejection duct; the flow-increasing plates can move along the direction of air flow in the ejection duct under the drive of the stepping motor, and can adjust the angle formed by the flow-increasing plates and the direction of air flow in the ejection duct;

[0010] The clothes are located between the injection air ducts on both sides, and the extension direction of the air duct is the same as the width direction of the clothes.

[0011] The air duct outlet structure described in the embodiment of the present invention is arranged in the inner cavity of the clothing care machine, which makes full use of the fluid mechanics characteristics, and increases the pressure of the gas in the air duct by gradually increasing the flow cross-sectional area of ​​the pressurized air duct along the air flow direction. The clothes to be cared for are placed in the inner cavity of the clothing care machine, and the width direction of the clothes is arranged along the extension direction of the air induced air duct and is located between the injection air ducts on both sides; the arrangement of the air induced air duct can extend and disperse the air flow in the air duct, and the arrangement of the air outlet widens the air outlet width, so that the clothes can be fully cared for along the width during operation, and combined with the arrangement of the injection air ducts on both sides, the air flow out of the duct can be blown toward the front and back surfaces of the clothes, and along the clothes Surface flow can achieve directional shaping, deodorization and sterilization effects, while improving the airflow utilization efficiency and helping to save energy; in addition, the flow cross-sectional area of ​​the induced draft duct and the injection duct is set to be smaller than the flow cross-sectional area of ​​the boost duct. After the pressurized gas in the boost duct enters the induced draft duct and the injection duct in turn, under the condition that the fan power remains unchanged and the air intake volume in the air duct outlet structure remains unchanged, the reduction in the flow cross-sectional area can increase the fluid velocity, effectively increase the air outlet velocity, and thereby effectively enhance the speed and intensity of the airflow acting on the surface of the clothes, effectively shaping, deodorizing and sterilizing effects, better care effect, shortening the care cycle, and improving user experience.

[0012] Furthermore, the inner wall surface of the air inlet duct and / or the boost duct is provided with a rectifying structure, which can effectively eliminate the vortex generated after the gas passes through the fan blades and achieve the effect of equalizing the flow.

[0013] Furthermore, the middle part of the induced air duct is connected to the bottom of the boost air duct, and its two ends extend toward the two sides of the boost air duct respectively. This setting can avoid a large pressure difference in the air at both ends of the induced air duct, which in turn leads to uneven air outlet speed and force, affecting the care effect.

[0014] Furthermore, the induced air duct includes a diverter plate; the diverter plate is a sheet-like curved surface structure with a semi-elliptical cross-section, and the two side edges of the diverter plate are fixedly connected to the inner wall surface of the side close to the injection air duct on both sides, and the focus of the semi-elliptical structure is located on the outside of the induced air duct. The diverter plate can enable the air in the induced air duct to flow evenly to the air outlets on both sides and enter the injection air duct. At the same time, the setting with a semi-elliptical cross-section can effectively reduce resistance and avoid affecting the gas flow speed and intensity in the flow channel.

[0015] Furthermore, the air duct outlet structure also includes a flow-increasing structure; the flow-increasing structure includes a flow-increasing plate and a stepping motor; the number of the flow-increasing plates is at least two, and they are movably arranged on both sides of the extension direction of the air-inducing air duct and located outside the wall of the ejection air duct; a flow-increasing air duct is formed between the flow-increasing plates and the wall of the ejection air duct; the flow-increasing plates can move along the direction of air flow in the ejection air duct under the drive of the stepping motor, and can adjust the angle formed by the flow-increasing plates and the direction of air flow in the ejection air duct. The setting of the flow-increasing structure can introduce gas outside the air duct outlet structure and can guide the external gas to be blown toward the surface of the clothing to be cared together with the air outlet in the ejection air duct, effectively increasing the circulating air volume and improving the care effect.

[0016] Furthermore, the flow cross-sectional areas of the jet duct and the flow-increasing duct gradually decrease along the air flow direction, and the ratio of the cross-sectional width at the jet duct outlet to the cross-sectional width at the inlet is in the range of 1 / 12~1. The cross-sectional width at the point where the flow cross-sectional area of ​​the flow-increasing duct is smallest is not less than 1 / 6 of the cross-sectional width at the jet duct outlet, thereby further enhancing the air outlet speed and intensity of the jet duct, and at the same time enhancing the flow increase and speed increase effects of the flow-increasing duct.

[0017] Furthermore, the jet duct includes a first jet duct, a throat, and a second jet duct, which are sequentially connected. The first jet duct is connected to the air outlet of the induced air duct. The flow cross-sectional area of ​​the first jet duct gradually decreases along the air flow direction, while the flow cross-sectional area of ​​the second jet duct gradually increases along the air flow direction. The throat is the point where the flow cross-sectional area within the jet duct is the smallest, and its cross-sectional width is not less than 1 / 6 of the cross-sectional width of the nozzle outlet. The converging and expanding shape of the jet duct can further increase the airflow velocity within the duct and enhance the care effect.

[0018] Furthermore, the ratio of the cross-sectional width at the inlet of the flow-increasing air duct to the cross-sectional width at the outlet is in the range of 1 to 12, which helps to ensure the flow-increasing and drainage effects.

[0019] Furthermore, the jet duct wall profile is a Bezier curve; the cross-sectional profile of each of the flow-increasing plates is a Bezier curve, or its cross-sectional profile is elliptical. The Bezier curve cross-sectional profile effectively reduces the resistance to gas within the duct; the elliptical cross-sectional profile enhances gas circulation around the duct outlet structure while effectively reducing resistance and weakening or even eliminating air vortices.

[0020] The air duct outlet structure described in the embodiment of the present invention is arranged in the inner cavity of the clothing care machine. It makes full use of fluid mechanics characteristics and increases the pressure of the gas in the air duct by gradually increasing the flow cross-sectional area of ​​the pressurized air duct along the air flow direction. The clothes to be cared for are placed in the inner cavity of the clothing care machine, and the width direction of the clothes is arranged along the extension direction of the air induced air duct and is located between the injection air ducts on both sides; the arrangement of the air induced air duct can extend and disperse the air flow in the duct, and the arrangement of the air outlet widens the air outlet width, so that the clothes can be fully cared for along the width during work, and combined with the arrangement of the injection air ducts on both sides, the air flow out of the duct can be blown in a direction to the front and back surfaces of the clothes and flow along the surface of the clothes, thereby achieving directional shaping, deodorization and sterilization effects, while improving the air flow utilization efficiency and helping to save energy; in addition In addition, by utilizing the setting that the flow cross-sectional area of ​​the induced draft duct and the injection air duct is smaller than the flow cross-sectional area of ​​the boost duct, after the pressurized gas in the boost duct enters the induced draft duct and the injection air duct in turn, when the fan power remains unchanged and the air intake volume in the air duct outlet structure remains unchanged, the reduction in the flow cross-sectional area can increase the fluid velocity, effectively increase the air outlet speed, and further effectively enhance the speed and intensity of the air flow acting on the surface of the clothes, effectively shaping, removing odors and sterilizing effects, better care effect, shortening the care cycle, and user experience; in a preferred embodiment, by further limiting the injection air duct, further improving the air outlet speed and intensity, and at the same time, combined with the setting of the flow-increasing structure, effectively introducing gas outside the air duct outlet structure, increasing the circulating air volume, and improving the care effect. Improve the care effects such as shaping, deodorization and sterilization; in addition, through the setting of the shape of the diverter plate and the flow-increasing plate, the resistance of the structure to the fluid is reduced, energy loss is avoided, and the air outlet speed and intensity are ensured. Combined with the setting of the rectification structure, the vortex is weakened or eliminated, and the overall gas flow in the air duct outlet structure is optimized to improve the care effect.

[0021] In addition, the present invention also provides a clothing care machine, which includes a care machine body and the air duct outlet structure described above, the air inlet duct or the boost duct passes through and is fixed to the care machine body, and a heater and a negative ion generator are provided in the boost duct and / or the injection duct.

[0022] The clothing care machine provided in the embodiment of the present invention has a reasonable air outlet structure, high air outlet speed and intensity, good gas circulation effect, high clothing care effect and care efficiency, which helps to shorten the care cycle, improve user experience and save energy.

[0023] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the air duct outlet structure described in Example 1 of the present invention;

[0025] Figure 2 for Figure 1 AA section schematic diagram shown;

[0026] Figure 3 for Figure 1 BB cross-section diagram shown;

[0027] Figure 4 for Figure 1 Schematic diagram of CC cross section shown;

[0028] Figure 5 Schematic diagram of the working process of the flow-increasing structure described in Example 1 of the present invention Figure 1 ;

[0029] Figure 6 Schematic diagram of the working process of the flow-increasing structure described in Example 1 of the present invention Figure 2 ;

[0030] Figure 7 Schematic diagram of the working process of the flow-increasing structure described in Example 1 of the present invention Figure 3 ;

[0031] Figure 8 This is a partial cross-sectional diagram of the air duct outlet structure according to Example 2 of the present invention;

[0032] Figure 9 This is a partial cross-sectional diagram of the air duct outlet structure according to Example 3 of the present invention;

[0033] Figure 10 This is a structural diagram of the clothing care machine according to embodiment 4 of the present invention;

[0034] Figure 11 This is a schematic diagram of the relationship between the air duct outlet structure and clothing described in Example 4 of the present invention. DETAILED DESCRIPTION

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0036] Example 1

[0037] Please refer to Figure 1-4 , Figure 1 This is a schematic diagram of the air duct outlet structure described in Example 1 of the present invention. Figure 2 for Figure 1 The AA cross-sectional diagram is shown. Figure 3 for Figure 1 BB cross-section diagram shown, Figure 4 for Figure 1 As shown in the CC cross-sectional diagram, in order to address the deficiencies in the prior art, the first embodiment of the present invention provides an air duct outlet structure, which includes an air inlet duct 10, a pressurized air duct 20, an air induced air duct 30 and an ejection air duct 40 connected in sequence.

[0038] A fan 16 is provided in the air inlet duct 10 , and the flow cross-sectional area of ​​the boost duct 20 gradually increases along the air flow direction.

[0039] The induced air duct 30 includes an air inlet 32 ​​and an air outlet 34, and the air inlet 32 ​​is connected to the boost air duct 20; the number of the air outlets 34 is at least 2, which are arranged along the extension direction of the induced air duct 30 and are symmetrically located on both sides of the extension direction of the induced air duct 30.

[0040] The number of the injection air ducts 30 is at least 2, which are symmetrically arranged on both sides of the extension direction of the induced air duct 30 and are correspondingly connected to the air outlet 34 of the induced air duct 30; the injection air ducts 30 on both sides are close to each other along the air flow direction.

[0041] The flow cross-sectional area of ​​the induced air duct 30 and the injection air duct 30 is smaller than the flow cross-sectional area of ​​the supercharging air duct 20 .

[0042] The air duct outlet structure described in Example 1 of the present invention is arranged in the inner cavity of the clothing care machine, which makes full use of the fluid mechanics characteristics and increases the pressure of the gas in the air duct by gradually increasing the flow cross-sectional area of ​​the pressurized air duct along the air flow direction. The clothes to be cared for are placed in the inner cavity of the clothing care machine, and the width direction of the clothes is arranged along the extension direction of the air induced air duct and is located between the injection air ducts on both sides; the arrangement of the air induced air duct can extend and disperse the air flow in the air duct, and the arrangement of the air outlet widens the air outlet width, so that the clothes can be fully cared for along the width during operation, and combined with the arrangement of the injection air ducts on both sides, the air flow out of the duct can be blown toward the front and back surfaces of the clothes and along the clothes. Surface flow can achieve directional shaping, deodorization and sterilization effects, while improving the airflow utilization efficiency and helping to save energy; in addition, the flow cross-sectional area of ​​the induced draft duct and the injection duct is set to be smaller than the flow cross-sectional area of ​​the boost duct. After the pressurized gas in the boost duct enters the induced draft duct and the injection duct in turn, under the condition that the fan power remains unchanged and the air intake volume in the air duct outlet structure remains unchanged, the reduction in the flow cross-sectional area can increase the fluid velocity, effectively increase the air outlet velocity, and thereby effectively enhance the speed and intensity of the airflow acting on the surface of the clothes, effectively shaping, deodorizing and sterilizing effects, better care effect, shortening the care cycle, and improving user experience.

[0043] As an optional implementation, in this embodiment, the inner wall surface of the air inlet duct and / or the boost duct is provided with a rectifying structure 50. The rectifying structure 50 can effectively eliminate the vortex generated after the gas passes through the fan blades 16, and has the effect of equalizing the flow. Specifically, the rectifying structure 50 can be a rectifying plate, and a number of rectifying parts are fixed on its surface. The rectifying parts are long strips or crescent-shaped, and have good rectifying and equalizing effects, and can effectively eliminate gas vortices.

[0044] As an optional embodiment, the middle portion of the induced draft duct 30 is connected to the bottom of the boost duct 20, and its two ends extend toward the two sides of the boost duct 20. This arrangement can avoid a large pressure difference in the air at both ends of the induced draft duct, which in turn leads to uneven air outlet speed and force, affecting the care effect. As an optional embodiment, in this embodiment, the number of air outlets 34 is 2, that is, the air outlets 34 are narrow slit-like structures symmetrically located on both sides of the induced draft duct 30 and extending along the extension direction of the induced draft duct 30. The number of injection ducts 30 is 2, which are correspondingly connected to the air outlet 34. This arrangement allows the gas in the duct outlet structure to evenly enter the injection duct 30 along the two narrow slit-like air outlets for acceleration, and then evenly flow to the surface of the clothing to be cared for, resulting in a better care effect.

[0045] As an optional embodiment, in this embodiment, the induced air duct 30 includes a diverter plate 36. This diverter plate 36 is a sheet-like curved surface structure with a semi-elliptical cross-section. It is located within the induced air duct 30 and extends along the extension direction of the induced air duct 30. The two sides of the diverter plate 36 are respectively connected to the inner wall surface of the side of the injection air duct 30 on both sides, and the focus of the semi-elliptical structure is located outside the induced air duct 30. The arrangement of the diverter plate 36 allows air within the induced air duct 30 to flow evenly to the injection air ducts 40 on both sides. At the same time, the semi-elliptical cross-section effectively reduces resistance, avoiding affecting the flow speed and intensity of the gas within the flow channel. Further preferably, in this embodiment, the ratio of the major axis radius L1 to the minor axis radius L2 of the semi-elliptical structure ranges from 1.0 to 5.0, which provides a better diversion effect and reduces resistance.

[0046] As an optional embodiment, in this embodiment, the air duct outlet structure further includes a flow-increasing structure 60; the flow-increasing structure 60 includes a flow-increasing plate 62 and a stepping motor (not shown); the number of the flow-increasing plates 62 is at least two, which are movably arranged on both sides of the extension direction of the air duct 30 and located outside the wall of the ejection duct; a flow-increasing duct 64 is formed between the flow-increasing plate 62 and the wall of the ejection duct. Figure 5-7 , Figure 5 Schematic diagram of the working process of the flow-increasing structure described in Example 1 of the present invention Figure 1 , Figure 6 Schematic diagram of the working process of the flow-increasing structure described in Example 1 of the present invention Figure 2 , Figure 7 Schematic diagram of the working process of the flow-increasing structure described in Example 1 of the present invention Figure 3 As shown in the figure, the flow-increasing plate 62 can be driven by the stepper motor to move along the direction of air flow within the injection duct 40, and the angle formed by the flow-increasing plate 62 with the direction of air flow within the injection duct 40 can be adjusted. By adjusting the position and angle of the flow-increasing plate 62, the air volume and flow direction within the flow-increasing duct can be adjusted, so that the introduced airflow can be better directed toward the surface of the clothing. The provision of the flow-increasing structure 60 can introduce air outside the air duct outlet structure and guide the external air to be blown toward the surface of the clothing to be cared for together with the air discharged from the injection duct 40, effectively increasing the circulating air volume and improving the care effect.

[0047] In the description of the embodiments of the present invention, the flow cross-sectional area is defined as the cross-sectional area of ​​the gas flow path within the air inlet duct, the boost duct, the induced draft duct, or the injection duct. In this embodiment, the flow cross-sectional area of ​​both the injection duct 40 and the flow-increasing duct 64 gradually decreases along the air flow direction, and the ratio (r / R) of the cross-sectional width r at the outlet of the injection duct 40 to the cross-sectional width R at the inlet is in the range of 1 / 12 to 1. The cross-sectional width of the flow-increasing duct 64 at the point of minimum flow cross-sectional area is no less than 1 / 6 of the cross-sectional width at the outlet of the injection duct 40. This further enhances the air velocity and intensity of the injection duct 40 while also increasing the flow and speed of the flow-increasing duct 64.

[0048] Further preferably, the ratio D / d of the cross-sectional width D at the inlet of the flow-increasing air duct 64 to the cross-sectional width d at the outlet is in the range of 1 to 12, which helps to ensure the flow-increasing and drainage effects.

[0049] As an optional implementation, in this embodiment, the cross-sectional profiles of the wall surface of the injection air duct 40 and the flow increaser 62 are both Bezier curves, which can effectively reduce resistance.

[0050] Example 2

[0051] Please refer to Figure 8 , Figure 8 This is a partial cross-sectional schematic diagram of the air duct outlet structure according to Example 2 of the present invention. As shown in the figure, Example 2 of the present invention provides an air duct outlet structure. This differs from Example 1 in that the injection air duct 40 includes a first injection air duct 401, a throat portion 402, and a second injection air duct 403, which are sequentially connected. The first injection air duct 401 is connected to the induced air duct 30. The flow cross-sectional area of ​​the first injection air duct 401 gradually decreases along the air flow direction, while the flow cross-sectional area of ​​the second injection air duct 403 gradually increases along the air flow direction. The throat portion 402 is the point with the smallest flow cross-sectional area within the injection air duct 40, and its cross-sectional width is no less than 1 / 6 of the cross-sectional width of the nozzle 30 outlet. As an optional embodiment, the expansion angle γ of the cross-sectional profile of the inner wall of the second jet duct 403 is not greater than 10°. In the description of the embodiment of the present invention, the expansion angle γ is defined as the angle formed by the cross-sectional profile of the inner wall of the second jet duct 403 and the cross-sectional center line of the second jet duct 403. The setting of the contraction and expansion shape of the jet duct 40 can further increase the airflow velocity in the duct and enhance the care effect.

[0052] Example 3

[0053] Please refer to Figure 9 , Figure 9This is a partial cross-sectional schematic diagram of the air duct outlet structure described in Example 3 of the present invention. As shown in the figure, Example 3 of the present invention provides an air duct outlet structure, which differs from Example 1 in that the cross-section of each flow-enhancing plate 62 is elliptical, and the long axis direction of the ellipse forms an acute angle with the air outlet direction of the injection air duct 40, which can enhance the gas circulation around the air duct outlet structure while effectively reducing resistance, and can weaken or even eliminate air vortices.

[0054] The air duct outlet structure described in Examples 1-3 of the present invention is arranged in the inner cavity of the clothing care machine, which makes full use of fluid mechanics characteristics and increases the pressure of the gas in the air duct by gradually increasing the flow cross-sectional area of ​​the pressurized air duct along the air flow direction. The clothes to be cared for are placed in the inner cavity of the clothing care machine, and the width direction of the clothes is arranged along the extension direction of the air induced air duct and is located between the injection air ducts on both sides; the arrangement of the air induced air duct can extend and disperse the air flow in the air duct, and the arrangement of the air outlet widens the air outlet width, so that the clothes can be fully cared for along the width during operation, and combined with the arrangement of the injection air ducts on both sides, the air flow out of the duct can be blown in a direction toward the front and back surfaces of the clothes and flow along the surface of the clothes, achieving directional shaping, deodorization and sterilization effects, while improving the air flow utilization efficiency and helping to save energy; In addition, by utilizing the setting that the flow cross-sectional area of ​​the induced draft duct and the injection duct is smaller than the flow cross-sectional area of ​​the boost duct, after the pressurized gas in the boost duct enters the induced draft duct and the injection duct in turn, under the condition that the fan power remains unchanged and the air intake volume in the duct outlet structure remains unchanged, the reduction in the flow cross-sectional area can increase the fluid velocity, effectively increase the air outlet velocity, and thereby effectively enhance the speed and intensity of the air flow acting on the surface of the clothing, effectively shaping, removing odors and sterilizing, etc., the care effect is better, and the care cycle can be shortened, which improves user experience; in a preferred embodiment, by further limiting the injection duct, the air outlet velocity and intensity are further improved, and at the same time, combined with the setting of the flow-increasing structure, the gas outside the duct outlet structure is effectively introduced, the circulating air volume is increased, and the care effect is improved. Improve the care effects such as shaping, deodorization and sterilization; in addition, through the setting of the shape of the diverter plate and the flow-increasing plate, the resistance of the structure to the fluid is reduced, energy loss is avoided, and the air outlet speed and intensity are ensured. Combined with the setting of the rectification structure, the vortex is weakened or eliminated, and the overall gas flow in the air duct outlet structure is optimized to improve the care effect.

[0055] Example 4

[0056] Please refer to Figure 10-11 , Figure 10 This is a structural diagram of the clothing care machine according to embodiment 4 of the present invention. Figure 11The figure is a schematic diagram of the relationship between the air duct outlet structure and clothing described in Example 4 of the present invention. As shown in the figure, Example 3 of the present invention provides a clothing care machine, which includes a care machine body 80 and the air duct outlet structure described in any of Examples 1-3. The air inlet duct 10 or the boost duct 20 is fixed to the care machine body 80, and a heater and a negative ion generator are provided in the boost duct 20 and / or the injection duct 40 (not shown in the figure). When in use, the clothing 70 to be cared for is hung and fixed in the inner cavity of the care machine body 80, and the width direction of the clothing 70 is arranged along the extension direction of the air duct 30 and is located between the injection ducts 40 on both sides. The air flow direction in the injection duct 40 forms an acute angle β with the surface of the clothing 70, so as to better care for the clothing and improve the care effects such as shaping, deodorization and sterilization.

[0057] The clothing care machine provided in Example 4 of the present invention has a reasonable air outlet structure, high air outlet speed and intensity, good gas circulation effect, high clothing care effect and care efficiency, which helps to shorten the care cycle, improve user experience and save energy.

[0058] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. An air duct outlet structure, applied to a clothing care machine, wherein the air duct outlet structure is arranged in an inner cavity of the clothing care machine, and is characterized in that: It includes an air inlet duct, a pressurized air duct, an air induced air duct and an injection air duct which are connected in sequence; A fan is provided in the air inlet duct; the flow cross-sectional area of ​​the pressurized air duct gradually increases along the air flow direction; The induced air duct includes an air inlet and an air outlet, the air inlet is connected to the supercharged air duct; the number of the air outlets is at least 2, which are arranged along the extension direction of the induced air duct and are located on both sides of the extension direction of the induced air duct; The number of the injection air ducts is at least 2, which are arranged on both sides of the extension direction of the induced air duct and are correspondingly connected to the air outlet of the induced air duct; the injection air ducts on both sides are close to each other along the air flow direction; The flow cross-sectional area of ​​the induced air duct and the injection air duct are both smaller than the flow cross-sectional area of ​​the supercharging air duct, and the flow cross-sectional area of ​​the injection air duct is smaller than the flow cross-sectional area of ​​the induced air duct; The air conditioner further comprises a flow-increasing structure; the flow-increasing structure comprises a flow-increasing plate and a stepping motor; the number of the flow-increasing plates is at least two, and the flow-increasing plates are movably arranged on both sides of the extension direction of the air-inducing duct and located outside the wall of the ejection duct; a flow-increasing duct is formed between the flow-increasing plates and the wall of the ejection duct; the flow-increasing plates can move along the direction of air flow in the ejection duct under the drive of the stepping motor, and can adjust the angle formed by the flow-increasing plates and the direction of air flow in the ejection duct; The clothes are located between the injection air ducts on both sides, and the extension direction of the air duct is the same as the width direction of the clothes.

2. The air duct outlet structure according to claim 1, characterized in that: The inner wall surface of the air inlet duct and / or the boost duct is provided with a rectification structure.

3. The air duct outlet structure according to claim 1, characterized in that: The middle portion of the air induced duct is connected to the bottom portion of the supercharging duct, and both ends thereof extend toward two sides of the supercharging duct respectively.

4. The air duct outlet structure according to claim 3, characterized in that: The induced air duct includes a diverter plate; the diverter plate is a sheet-like curved surface structure with a semi-elliptical cross-section, and the two side edges of the diverter plate are fixedly connected to the inner wall surface of the side close to the two side injection air ducts, and the focus of the semi-elliptical structure is located on the outside of the induced air duct.

5. The air duct outlet structure according to claim 1, characterized in that: The flow cross-sectional areas of the injection air duct and the flow-increasing air duct gradually decrease along the air flow direction, and the ratio of the cross-sectional width at the outlet of the injection air duct to the cross-sectional width at the inlet is in the range of 1 / 12~1, and the cross-sectional width at the point where the flow cross-sectional area of ​​the flow-increasing air duct is minimum is not less than 1 / 6 of the cross-sectional width at the outlet of the injection air duct.

6. The air duct outlet structure according to claim 1, characterized in that: The injection air duct includes a first injection air duct, a throat and a second injection air duct which are connected in sequence, and the first injection air duct is connected to the air outlet of the induced air duct; the flow cross-sectional area of ​​the first injection air duct gradually decreases along the air flow direction, and the flow cross-sectional area of ​​the second injection air duct gradually increases along the air flow direction, and the throat is the point where the flow cross-sectional area in the injection air duct is the smallest, and its cross-sectional width is not less than 1 / 6 of the cross-sectional width of the nozzle outlet.

7. The air duct outlet structure according to claim 5 or 6, characterized in that: The ratio of the cross-sectional width at the inlet of the flow-increasing air duct to the cross-sectional width at the outlet is in the range of 1 to 12.

8. The air duct outlet structure according to claim 4, characterized in that: The wall profile of the jet air duct is a Bezier curve; the cross-sectional profile of each of the flow-increasing plates is a Bezier curve, or its cross-section is elliptical.

9. A clothing care machine, characterized in that: It comprises a nursing machine body and the air duct outlet structure described in any one of claims 1-8, the air inlet duct or the boost duct is fixed through the nursing machine body, and a heater and a negative ion generator are provided in the boost duct and / or the injection duct.

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