CN220494999U - Drying structure of household appliance - Google Patents

Abstract

A drying structure of a home appliance, comprising: a housing chamber; the air duct pipe is provided with an inlet communicated with the atmosphere and an outlet communicated with the accommodating chamber; the flow guide assembly comprises at least one flow guide sheet which is restrained at the outlet of the air duct pipe in a swinging manner; the method is characterized in that: the air inlet device also comprises an impeller which is accommodated in the air duct pipe and can rotate freely, and the impeller is connected with each guide vane in a transmission way, so that the air inlet direction of the accommodating cavity can be adjusted by the drying structure of the household appliance without additional power.

Description

Drying structure of household appliance

Technical Field

The utility model relates to a household appliance, in particular to a drying structure of the household appliance.

Background

In household appliances such as dishwashers, washing machines, mopping machines, steamers, ironing machines, dryers, drying structures are often provided to speed up the drying rate of the inner cavity or the articles contained therein, so that bacterial growth can be reduced.

Taking a dish washer as an example, the Chinese patent application with the application number ZL201910227304.4 (with the publication number CN 111728564A) discloses an air duct structure of the dish washer, which comprises an air inlet duct and an air outlet duct, wherein the inlet of the air inlet duct is communicated with the atmosphere and is provided with a fan unit, the fan unit is used for guiding air flow outside the air duct into the air duct, the air outlet of the air inlet duct is communicated with a containing cavity of the dish washer and is provided with a grid, and a plurality of grid sheets capable of rotating around a shaft are arranged on the grid at intervals, so that the air outlet angle of the grid sheets is adjusted; the inlet of the air outlet duct is communicated with the accommodating chamber of the dish washer, and the outlet of the air outlet duct is communicated with the atmosphere, so that the air in the accommodating chamber is discharged.

The air duct structure of the dish washer inputs the outside air into the accommodating chamber through the air inlet duct and discharges the moisture in the accommodating chamber through the air outlet duct so as to accelerate the drying rate of the accommodating chamber and the tableware, fruits and vegetables and the like in the accommodating chamber, and the rotatable grid plate is arranged at the air outlet of the air inlet duct, so that the air outlet direction of the air inlet duct (namely the air inlet direction of the accommodating chamber) can be adjusted, the uniformity of the air flow distribution of the accommodating chamber can be improved, and the drying effect is improved. However, the above-described tub structure of the dishwasher does not disclose a power source for the rotation of the grill.

Disclosure of Invention

The first technical problem to be solved by the present utility model is to provide a drying structure of a household appliance capable of adjusting the air inlet direction of a containing chamber without additional power.

The second technical problem to be solved by the utility model is to provide a drying structure of a household appliance capable of accelerating rotation of an impeller.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: a drying structure of a home appliance, comprising:

a housing chamber;

the air duct pipe is provided with an inlet communicated with the atmosphere and an outlet communicated with the accommodating chamber;

the flow guide assembly comprises at least one flow guide sheet which is restrained at the outlet of the air duct pipe in a swinging manner;

the method is characterized in that: and also comprises

The impeller is accommodated in the air duct pipe and can rotate freely, and the impeller is connected with each guide vane in a transmission way.

The impeller is accommodated in the air duct pipe and can freely rotate, and is in transmission connection with each guide vane, so that the impeller can rotate under the action of air flow in the air duct pipe, each guide vane is driven to swing, the guide vanes can be rotated by the drying structure of the household appliance without additional power, and the air inlet direction of the accommodating cavity is regulated; by directing the air inlet of the casing to the circumferential direction side of the impeller, the driving force of the air flow to the impeller can be concentrated to the circumferential direction side of the impeller, and the rotation of the impeller can be accelerated.

The utility model solves the second technical problem by adopting the technical proposal that: the inside of wind channel pipe is equipped with the casing, and the inside cavity of this casing for the impeller holding is in wherein and can freely rotate, the casing have air inlet and gas outlet, just the air inlet of casing orientation one side of the circumference of impeller can make the air current concentrate on one side of the circumference of impeller to the driving force of impeller, thereby can accelerate the impeller rotation.

In order to increase the air inlet rate inside the shell, the area of the air inlet is smaller than the cross-sectional area of the air duct pipe at the corresponding position.

In order to balance the air inlet speed and the air inflow, the area of the air inlet is 1/5-1/3 of the cross section area of the air duct pipe at the corresponding position.

In order to be convenient for carry the air current to holding the cavity in, the wind channel pipe on be equipped with the fan, the air intake and the atmosphere intercommunication of this fan, the air outlet of fan with the entry of wind channel pipe is linked together fluid.

In order to reduce the pressure loss of the air flow, the air outlet of the fan is opposite to the air inlet of the shell.

In order to enable each guide vane to synchronously rotate, the air duct pipe is restrained with a connecting rod capable of moving along the length direction of the air duct pipe, the rotation axis of each guide vane is basically perpendicular to the length direction of the connecting rod, each guide vane is provided with a restraining structure at a position deviating from the rotation axis of the guide vane, and each restraining structure restrains the corresponding guide vane and the connecting rod together.

In order to facilitate the rotation of the impeller to be converted into the movement of the connecting rod, the axial direction of the impeller is basically perpendicular to the length direction of the connecting rod, one end of the impeller is provided with a connecting part, a convex column extends on the connecting part along the axial direction of the impeller or along the direction parallel to the axial direction of the impeller, one end of the connecting rod is connected with a transmission part, a strip-shaped groove for the convex column to be inserted therein is formed in the transmission part, and the length direction of the strip-shaped groove is perpendicular to the length direction of the connecting rod.

Further designed, the connecting rod and the transmission piece are integrated.

Further designed, the constraint structure is a notch arranged at the side edge of the guide vane, each notch is used for the connecting rod to be inserted into, and two limiting convex parts are respectively arranged at two sides of each guide vane by the connecting rod.

In order to prolong the length of the air duct pipe and facilitate arrangement of parts inside the air duct pipe, the air duct pipe comprises an air inlet section and an air outlet section which are connected, the inlet is arranged on the air inlet section, the outlet is arranged on the air outlet section, and the extending direction of the air inlet section is intersected with the extending direction of the air outlet section.

Because the inertia effect of air current, the air current gathers in the junction outside through air inlet section and air-out section easily in the junction of air inlet section and air-out section, causes the wind channel intraduct to be in the air current inequality of junction of air inlet section and air-out section, in order to make the wind channel intraduct be in the air current of junction of air inlet section and air-out section more even, the inside of wind channel intraduct is in the junction of air inlet section and air-out section, and the position that corresponds the axis of rotation of each guide vane is equipped with a reposition of redundant personnel piece respectively, makes the reposition of redundant personnel piece divide into a plurality of regions with the inside of wind channel intraduct the space of junction of air inlet section and air-out section into with the air-out flow channel one-to-one that the guide vane separated into, and the air current can flow along the reposition of redundant personnel piece based on the wall effect to can make the inside of wind channel intraduct be more even at the junction of air inlet section and air-out section.

In order to avoid the inside of wind channel pipe to take place the series flow at the air inlet section and the air-out different regional air current of junction of section, wind channel pipe have relative first wall portion and second wall portion, first wall portion is adjacent hold the cavity, second wall portion keep away from hold the cavity, and each splitter plate with the internal surface of first wall portion, the internal surface of second wall portion all links up to make each region that the splitter plate separates mutually independent, avoid causing the air current disorder between the different regions.

Further designed, the air duct pipe is arranged on the side wall of the accommodating chamber, and each guide vane is vertically arranged at the outlet of the air duct pipe.

Compared with the prior art, the utility model has the advantages that: the impeller is accommodated in the air duct pipe and can freely rotate, and is in transmission connection with each guide vane, so that the impeller can rotate under the action of air flow in the air duct pipe, each guide vane is driven to swing, the guide vanes can be rotated by the drying structure of the household appliance without additional power, and the air inlet direction of the accommodating cavity is regulated; by directing the air inlet of the casing to the circumferential direction side of the impeller, the driving force of the air flow to the impeller can be concentrated to the circumferential direction side of the impeller, and the rotation of the impeller can be accelerated.

Drawings

FIG. 1 is a first perspective view of the embodiment 1 of the present utility model;

FIG. 2 is a second perspective view of the embodiment 1 of the present utility model;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is a perspective view showing the structure of embodiment 1 of the present utility model with the accommodating chamber removed;

FIG. 5 is a top view of embodiment 1 of the present utility model with the receiving chamber removed;

FIG. 6 is a cross-sectional view in the direction B-B in FIG. 5;

FIG. 7 is a cross-sectional view taken along the direction C-C in FIG. 5;

FIG. 8 is a front view of embodiment 1 of the present utility model with the receiving chamber removed;

fig. 9 is an enlarged view of D in fig. 8;

FIG. 10 is a cross-sectional view of the structure shown in FIG. 8;

FIG. 11 is a second front view of embodiment 1 of the present utility model with the receiving chamber removed;

FIG. 12 is an enlarged view at E in FIG. 11;

FIG. 13 is a front view III of embodiment 1 of the present utility model with the receiving chamber removed;

fig. 14 is an enlarged view of F in fig. 13;

FIG. 15 is a cross-sectional view of the structure shown in FIG. 13;

FIG. 16 is a perspective view of the impeller, the driving member, the connecting rod and the flow guiding assembly according to embodiment 1 of the present utility model;

fig. 17 is a perspective view of the duct in embodiment 1 of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

Example 1

As shown in fig. 1-17, is a first preferred embodiment of the present utility model.

As shown in fig. 2, 4, 7 and 8, the drying structure of the household appliance in this embodiment includes main components such as a receiving chamber 1, an air duct 2, a diversion assembly, an impeller 4, a housing 5, a fan 6, a connecting rod 71, and a transmission member 72. The household appliance is a washing machine capable of washing tableware, fruits and vegetables, etc., and the accommodating chamber 1 is a washing chamber for placing the tableware, fruits and vegetables, etc.

As shown in fig. 1, 7 and 17, the side wall of the housing chamber 1 is provided with an interface (not shown). The duct tube 2 is provided on a side wall of the accommodating chamber 1 and has an inlet 211 and an outlet 221. The inlet 211 of the air duct pipe 2 is provided with a fan 6, the air inlet 61 of the fan 6 is communicated with the atmosphere, and the air outlet 62 of the fan 6 is communicated with the inlet 211 of the air duct pipe 2, so that the fan 6 can convey external air to the inside of the air duct pipe 2 through the inlet 211 of the air duct pipe 2. The outlet 221 of the duct tube 2 is interfaced with an interface (not shown) of the receiving chamber 1 such that the outlet 221 of the duct tube 2 communicates with the receiving chamber 1, thereby allowing the gas inside the duct tube 2 to enter the interior of the receiving chamber 1.

As shown in fig. 1, 4, 7, 10 and 15-17, the outlet 221 of the duct 2 is in a strip shape, and the flow guiding assembly comprises five flow guiding sheets 3 distributed at intervals along the length direction of the outlet 221 of the duct 2, and each flow guiding sheet 3 is vertically arranged. The middle parts of the two ends of each guide vane 3 are respectively provided with a rotating shaft part 32 in a protruding mode, the inner surface of the outlet 221 of the air duct pipe 2 is provided with a shaft hole 2211 corresponding to each rotating shaft part 32, and the rotating shaft parts 32 on each guide vane 3 are respectively connected with the corresponding shaft holes 2211, so that each guide vane 3 can swing relative to the outlet 221 of the air duct pipe 2, the angle of the guide vane 3 can be adjusted, and the air inlet direction of the accommodating chamber 1 can be adjusted.

As shown in fig. 7 and 17, the duct 2 includes an air inlet section 21 and an air outlet section 22 connected to each other, the air inlet section 21 extends horizontally, and an inlet 211 is provided at the left end of the air inlet section 21; the air outlet section 22 extends vertically, and the outlet 221 is disposed at the lower end of the air outlet section 22. The extending direction of the air inlet section 21 and the extending direction of the air outlet section 22 are intersected, so that the length of the air duct pipe 2 can be prolonged, and parts can be conveniently arranged inside the air duct pipe 2. The inside of the air duct pipe 2 is provided with a splitter plate 23 at the joint of the air inlet section 21 and the air outlet section 22 and corresponding to the rotation axis of each guide vane 3, so that the splitter plate 23 divides the space of the inside of the air duct pipe 2 at the joint of the air inlet section 21 and the air outlet section 22 into a plurality of areas, each area corresponds to the air outlet flow passage formed by the guide vanes 3 by separating the outlet 221 of the air duct pipe 2 one by one, and air flow can flow along the splitter plate 23 based on the coanda effect, thereby enabling the air flow of the inside of the air duct pipe 2 at the joint of the air inlet section 21 and the air outlet section 22 to be more uniform. The duct 2 has a first wall portion 2a and a second wall portion 2b opposite to each other, the first wall portion 2a is adjacent to the accommodating chamber 1, the second wall portion 2b is far away from the accommodating chamber 1, and each of the flow dividing sheets 23 is engaged with the inner surface of the first wall portion 2a and the inner surface of the second wall portion 2b, so that each of the areas separated by the flow dividing sheets 23 is independent from each other, and air flow disturbance between the different areas is avoided.

As shown in fig. 7, 10 and 15, the air duct tube 2 is provided with a casing 5 inside, the casing 5 is hollow, so that the impeller 4 is accommodated therein and can rotate freely, and the impeller 4 is in transmission connection with each guide vane 3, so that the impeller 4 rotates under the action of air flow in the air duct tube 2, and each guide vane 3 can be driven to swing, so that the drying structure of the household appliance can rotate the guide vanes 3 without additional power, and the air inlet direction of the accommodating chamber 1 is adjusted. The casing 5 has an air inlet 51 and an air outlet 52, and the air inlet 51 of the casing 5 faces the circumferential side of the impeller 4, so that the driving force of the air flow to the impeller 4 can be concentrated on the circumferential side of the impeller 4, and the rotation of the impeller 4 can be accelerated. The area of the air inlet 51 is smaller than the cross-sectional area of the duct tube 2 at the corresponding position, so that the air intake rate inside the housing 5 can be increased. The area of the air inlet 51 is 1/5 to 1/3 of the cross-sectional area of the duct tube 2 at the corresponding position, so that the air inlet rate and the air inlet amount can be balanced. The air outlet 62 of the blower 6 is opposed to the air inlet 51 of the housing 5, so that the pressure loss of the air flow can be reduced.

As shown in fig. 3 to 17, a through hole 24 is arranged on the side wall of the air outlet section 22 of the air duct pipe 2, and a connecting rod 71 capable of moving along the length direction of the through hole 24 is penetrated and arranged in the through hole; the rotation axis of each guide vane 3 is substantially perpendicular to the length direction of the connecting rod 71, and each guide vane 3 is provided with a constraint structure at a position deviated from the rotation axis, and each constraint structure constrains the corresponding guide vane 3 and the connecting rod 71 together, so that each guide vane 3 can be synchronously rotated by moving the connecting rod 71. The upper end of each guide vane 3 is provided with a convex part 31, each constraint structure is a notch 311 arranged at the side edge of the corresponding convex part 31, each notch 311 is provided for the connecting rod 71 to be inserted therein, and the two sides of each guide vane 3 of the connecting rod 71 are respectively provided with a limit convex part 711.

As shown in fig. 3 and 6 to 16, the axial direction of the impeller 4 is substantially perpendicular to the length direction of the connecting rod 71, and one end of the impeller 4 passes through the outside of the duct 2 and is provided with a connecting portion 41, and the connecting portion 41 is provided with a protrusion 411 extending in a direction parallel to the axial direction of the impeller 4. One end of the link 71 is connected to a transmission member 72, and the transmission member 72 is provided with a bar-shaped groove 721 into which the boss 411 is inserted, and the length direction of the bar-shaped groove 721 is perpendicular to the length direction of the link 71. The link 71 and the transmission member 72 are one piece. When the impeller 4 rotates to the far right side of the convex column 411 (see fig. 9), the transmission piece 72 drives the connecting rod 71 to move rightwards, so as to drive each guide vane 3 to swing leftwards (see fig. 10); when the impeller 4 rotates until the boss 411 is located in the middle (see fig. 3 and 12), the transmission member 72 drives the connecting rod 71 to move until each guide vane 3 is in a centered state (see fig. 4 and 7); when the impeller 4 rotates until the boss 411 is positioned at the leftmost side (see fig. 14), the driving member 72 drives the link 71 to move leftwards, thereby driving each guide vane 3 to swing rightwards (see fig. 15).

Example 2

This embodiment differs from embodiment 1 in that: the household appliance is a steam box, and the accommodating chamber is a cooking chamber.

Example 3

This embodiment differs from embodiment 1 in that: the household appliance is a dryer, and the accommodating chamber is a drying chamber for placing clothes.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

The term "fluid communication" as used herein refers to a spatial positional relationship between two components or parts (hereinafter collectively referred to as a first part and a second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow along a flow path from the first part to the second part or/and be transported to the second part, or the first part and the second part may be directly communicated with each other, or the first part and the second part may be indirectly communicated with each other through at least one third party, and the third party may be a fluid channel such as a pipe, a channel, a conduit, a flow guiding member, a hole, a groove, or the like, or a chamber allowing the fluid to flow through, or a combination thereof.

Claims (14)

1. A drying structure of a home appliance, comprising:

a housing chamber (1);

an air duct pipe (2), wherein the inlet (211) is communicated with the atmosphere, and the outlet (221) is communicated with the accommodating chamber (1);

a deflector assembly comprising at least one deflector (3) which is constrained in a swingable manner at the outlet (221) of the duct tube (2);

the method is characterized in that: and also comprises

The impeller (4) is accommodated in the air duct pipe (2) and can rotate freely, and the impeller is connected with each guide vane (3) in a transmission way.

2. The drying structure according to claim 1, characterized in that: the inside of wind channel pipe (2) is equipped with casing (5), and the inside cavity of this casing (5) is in order to supply impeller (4) holding wherein and can freely rotate, casing (5) have air inlet (51) and gas outlet (52), just air inlet (51) of casing (5) orientation one side in the circumference of impeller (4).

3. The drying structure according to claim 2, characterized in that: the area of the air inlet (51) is smaller than the cross-sectional area of the air duct pipe (2) at the corresponding position.

4. A drying structure according to claim 3, wherein: the area of the air inlet (51) is 1/5-1/3 of the cross section area of the air duct pipe (2) at the corresponding position.

5. The drying structure according to claim 2, characterized in that: the air duct pipe (2) on be equipped with fan (6), the air intake (61) and the atmosphere intercommunication of this fan (6), the air outlet (62) of fan (6) with the entry (211) fluid communication of air duct pipe (2).

6. The drying structure according to claim 5, wherein: an air outlet (62) of the fan (6) is opposite to the air inlet (51) of the shell (5).

7. The drying structure according to claim 1, characterized in that: the air duct pipe (2) is restrained with a connecting rod (71) capable of moving along the length direction of the air duct pipe, the rotation axis of each guide vane (3) is basically perpendicular to the length direction of the connecting rod (71), each guide vane (3) is provided with a restraining structure at a position deviating from the rotation axis of the guide vane, and each restraining structure restrains the corresponding guide vane (3) and the connecting rod (71) together.

8. The drying structure according to claim 7, wherein: the axial direction of impeller (4) is basically perpendicular to the length direction of connecting rod (71), and the one end of impeller (4) is equipped with connecting portion (41), and this connecting portion (41) are gone up to follow the axial direction of impeller (4) or along being parallel to impeller (4) axial direction extension have projection (411), the one end of connecting rod (71) is connected with driving medium (72), is equipped with on this driving medium (72) and supplies projection (411) are inserted bar groove (721) wherein, and the length direction of this bar groove (721) is perpendicular to the length direction of connecting rod (71).

9. The drying structure according to claim 8, wherein: the connecting rod (71) and the transmission piece (72) are integrated.

10. The drying structure according to claim 7, wherein: the constraint structure is a notch (311) arranged at the side edge of each guide vane (3), each notch (311) is used for the connecting rod (71) to be inserted into, and the two sides of each guide vane (3) of the connecting rod (71) are respectively provided with a limit convex part (711).

11. The drying structure of a household appliance according to any one of claims 1 to 10, wherein: the air duct pipe (2) comprises an air inlet section (21) and an air outlet section (22) which are connected, the inlet (211) is arranged on the air inlet section (21), the outlet (221) is arranged on the air outlet section (22), and the extending direction of the air inlet section (21) is intersected with the extending direction of the air outlet section (22).

12. The drying structure according to claim 11, characterized in that: the inside of the air duct pipe (2) is provided with a splitter plate (23) at the joint of the air inlet section (21) and the air outlet section (22) and at the position corresponding to the rotation axis of each guide vane (3).

13. The drying structure according to claim 12, characterized in that: the air duct pipe (2) is provided with a first wall part (2 a) and a second wall part (2 b) which are opposite, the first wall part (2 a) is adjacent to the accommodating cavity (1), the second wall part (2 b) is far away from the accommodating cavity (1), and each flow dividing piece (23) is connected with the inner surface of the first wall part (2 a) and the inner surface of the second wall part (2 b).

14. The drying structure of a household appliance according to any one of claims 1 to 10, wherein: the air duct pipe (2) is arranged on the side wall of the accommodating chamber (1), and each guide vane (3) is vertically arranged at the outlet (221) of the air duct pipe (2).