CN112323431A

CN112323431A - Heat pump shell and washing machine

Info

Publication number: CN112323431A
Application number: CN202011147264.1A
Authority: CN
Inventors: 卢松; 钱伟; 苗雨来
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2017-04-28
Filing date: 2017-04-28
Publication date: 2021-02-05
Anticipated expiration: 2037-04-28
Also published as: CN112323431B; CN108797054A; CN108797054B

Abstract

The invention relates to the technical field of washing machines and discloses a heat pump shell and a washing machine, wherein the heat pump shell comprises a heat pump bottom shell and a heat pump cover plate, the heat pump bottom shell comprises an air channel with an air suction opening, and a filter screen mounting part is formed in the air channel; a water inlet channel is formed on the heat pump cover plate, and a water inlet structure is arranged on the water inlet channel; wherein, the structure of intaking is close to the setting of filter screen installation department for the filter screen of installing on the filter screen installation department can be washd to the hydroenergy of intake structure spun. Because the heat pump apron is last to be formed with the water course of intaking, and the inlet structure of water course of intaking is close to the filter screen installation department and sets up, like this, in the in-service use, inlet structure spun hydroenergy can be enough to wash the filter screen of installing on the filter screen installation department to washing machine when intaking, can make into water and carry out the self-cleaning to the filter screen, and this has guaranteed that the filter screen can obtain timely effectual clearance.

Description

Heat pump shell and washing machine

The application is a divisional application of Chinese patent application with the application date of 2017, 28/04, the application number of 201710297061.2, and the names of heat pump housings and washing machines.

Technical Field

The invention relates to the technical field of washing machines, in particular to a heat pump shell and a washing machine.

Background

Along with the improvement of life quality of people, the popularity of various intelligent household appliances such as washing machines is higher and higher. Meanwhile, various types of washing machines such as a drum type washing machine have also appeared. At present, the drying modes of the conventional drum type washing and drying integrated washing machine are classified into a heat pump type and a condensing type.

The water inlet system of the conventional drum-type heat pump washing and drying integrated machine is relatively independent and can only realize the water inlet function of the washing machine.

In addition, the drum-type heat pump washing and drying all-in-one machine needs to be cleaned of the flock after the drying procedure is completed each time or after the machine is used for a period of time, namely, the flock filter screen is manually taken out of the machine, then the flock on the filter screen is cleaned, and the filter screen is installed back to the original position after the cleaning is completed. If the filter screen is not cleaned timely and effectively, the air quantity of the drying external circulation is influenced, and the drying efficiency is reduced.

Disclosure of Invention

The invention provides a heat pump shell, which can automatically clean a filter screen when water enters a washing machine, and ensures that the filter screen can be cleaned timely and effectively.

In order to achieve the above object, the present invention provides a heat pump housing, which includes a heat pump bottom shell and a heat pump cover plate, wherein the heat pump bottom shell includes an air duct having an air suction opening, and a filter screen mounting portion is formed in the air duct; a water inlet channel is formed on the heat pump cover plate, and a water inlet structure is arranged on the water inlet channel; wherein, the structure of intaking is close to the filter screen installation department sets up, makes the structure spun hydroenergy of intaking can be right install filter screen on the filter screen installation department washs.

Through this technical scheme, because be formed with the water course of intaking on the heat pump apron, and the structure of intaking in water course is close to the filter screen installation department and sets up, like this, in the in-service use, the filter screen of installing on the filter screen installation department can be washd to the structure spun hydroenergy of intaking to washing machine when intaking, can make into water and carry out the self-cleaning to the filter screen, this has guaranteed that the filter screen can obtain timely effectual clearance.

Further, the water inlet structure is formed in the water inlet channel towards the spraying holes in the water channel wall of the filter screen installation part.

Furthermore, a plurality of rows of the spraying holes are formed in the height direction of the water inlet channel, and the number of the spraying holes in each row is multiple.

Further, the water inlet channel is obliquely arranged towards the channel wall of the filter screen mounting part.

In addition, it is close to go up to arrange the spray hole the filter screen installation department sets up to be able to installing filter screen on the filter screen installation department from the top down washes, and lower row spray hole is kept away from the filter screen installation department sets up to being able to installing the well lower part of the filter screen on the filter screen installation department washes.

Further, the angle between the lower side surface of the upper row of spray holes and the horizontal plane is smaller than the angle between the lower side surface of the lower row of spray holes and the horizontal plane.

In addition, the water inlet channel is a U-shaped water channel, and the water inlet structures are arranged on two straight water channels of the U-shaped water channel.

In addition, a water channel groove is formed in the outer plate surface of the heat pump cover plate, and a water channel cover plate covers the water channel groove to form the water inlet channel.

Furthermore, the filter screen installation department includes first filter screen installation department, wherein, being located in the wind channel be formed with the backward flow water entry on the wind channel wall of first filter screen installation department one side, and being located in the wind channel be formed with the backward flow water export on the wind channel wall of first filter screen installation department opposite side, be provided with on the heat pump casing with the backward flow water entry with the return channel of backward flow water export intercommunication.

Further, the wind channel be formed with first filter screen installation department interval arrangement's second filter screen installation department, wherein, the backward flow water entry forms first filter screen installation department with between the second filter screen installation department.

Furthermore, the air duct is located the bottom wall portion between the first filter screen installation portion and the second filter screen installation portion and the backflow channel continuously extends downwards in an inclined mode along the direction of backflow water.

Further, the return passage is located outside the air duct.

Still further, the duct wall of the duct includes an outwardly projecting protrusion, and the return passage is formed in the protrusion.

Still further, a one-way baffle is arranged at the return water outlet, wherein the one-way baffle is arranged to open the return water outlet only under the action of return water returning through the return channel.

Finally, the invention provides a washing machine, which comprises any one of the heat pump shells, wherein a filter screen of the washing machine is arranged on a corresponding filter screen installation part, and an air suction opening of the air duct is connected with an air suction pipe connected with a drum outer cylinder of the washing machine. Like this, as mentioned above, washing machine can make into water and carry out the self-cleaning to the filter screen when intaking, and this has guaranteed that the filter screen can obtain timely effectual clearance.

Drawings

Fig. 1 is a partial perspective view of a bottom shell of a heat pump according to an embodiment of the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a schematic structural view of the bottom shell of the heat pump of FIG. 1 with a filter screen, a one-way baffle and an air suction pipe;

FIG. 4 is a bottom perspective view of FIG. 3;

FIG. 5 is a schematic view of the one-way baffle of FIG. 3 closing the return outlet;

FIG. 6 is a schematic view of the one-way flapper of FIG. 3 opening the return outlet;

FIG. 7 is a schematic partial perspective view of a heat pump housing according to an embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of FIG. 7;

FIG. 9 is an enlarged view of a portion of the structure of FIG. 8;

FIG. 10 is a schematic diagram of a heat pump cover plate of a heat pump housing according to an embodiment of the present invention;

fig. 11 is a partial schematic top view of the heat pump cover plate of fig. 10.

Description of the reference numerals

1-an air suction opening, 2-an air duct, 3-a first filter screen mounting part, 4-a return water inlet, 5-a return water outlet, 6-a return channel, 7-a second filter screen mounting part, 8-a bottom wall part, 9-a protruding part, 10-an air duct bottom wall, 11-a one-way baffle and 12-an air suction pipe; 13-heat pump bottom shell, 14-heat pump cover plate, 15-water inlet channel, 16-channel wall, 17-spray hole, 18-straight channel, 19-outer plate surface, 20-channel groove and 21-channel cover plate.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

Referring to the structures shown in fig. 7 and 8, the heat pump housing provided by the present invention includes a heat pump bottom case 13 and a heat pump cover plate 14, wherein the heat pump bottom case 13 includes an air duct 2 having an air suction opening 1, and a filter screen mounting portion, such as a first filter screen mounting portion 3 and a second filter screen mounting portion 7, is formed in the air duct 2; a water inlet channel 15 is formed on the heat pump cover plate 14, and a water inlet structure is arranged on the water inlet channel 15; wherein, the structure of intaking is close to the setting of filter screen installation department for the filter screen of installing on the filter screen installation department can be washd to the hydroenergy of intake structure spun.

In this technical scheme, because be formed with water inlet channel 15 on the heat pump apron 14, and water inlet channel 15's the structure of intaking is close to the filter screen installation department and sets up, like this, in the in-service use, water inlet structure spun hydroenergy can be enough to wash the filter screen of installing on the filter screen installation department to washing machine when intaking, can make into water and carry out the self-cleaning to the filter screen, and this has guaranteed that the filter screen can obtain timely effectual clearance.

In the heat pump housing of the present invention, the water inlet structure may have various structural forms, for example, in one structural form, the water inlet structure may be a nozzle disposed in the air duct 2 and connected to the water inlet passage 15, so that the nozzle can clean the filter screen.

Alternatively, in another configuration, in order to simplify the structure and to make full use of the channel wall of the water inlet channel 15, it is preferable that the water inlet structure is a shower hole 17 formed in the channel wall 16 of the water inlet channel 15 facing the screen mounting portion, as shown in fig. 8 and 9. Thus, under the self pressure of tap water, water in the water inlet channel 15 is sprayed out from the spraying holes 17 to spray on the filter screen so as to self-clean the filter screen, and meanwhile, the arrangement of the spraying holes 17 can avoid that other spraying parts are arranged in the air duct 2 to influence the air suction area in the air duct 2.

Further, the number and arrangement of the spray holes 17 may be selected according to actual requirements, for example, as shown in fig. 7, 9, 10 and 11, in the height direction of the inlet water channel 15, a plurality of rows of spray holes 17 are formed, and the number of each row of spray holes is plural. Thus, through the multiple rows of spraying holes and the multiple spraying holes on each row, the filter screen can be more effectively self-cleaned from top to bottom.

Further, in order to enable the rows of shower holes 17 to sufficiently clean the filter screen, it is preferable that the water channel wall 16 of the water inlet channel 15 toward the filter screen mounting portion is arranged obliquely as shown in fig. 8 and 9. In this way, the spray water flow sprayed from each row of spray holes 17 will directly spray on the mesh surface of the filter mesh for more effective cleaning.

In addition, in the plural rows of the spray holes, each row of the spray holes has a different spray position in order to clean the filter net more comprehensively, for example, in one configuration, as shown in fig. 8, the upper row of the spray holes is close to the filter net mounting portion and is set to be able to wash down the filter net mounted on the filter net mounting portion from the uppermost portion, and the lower row of the spray holes is far from the filter net mounting portion and is set to be able to wash down the middle portion of the filter net mounted on the filter net mounting portion. Therefore, the spraying positions of the multiple rows of spraying holes are different in point, and the filter screen is sprayed and cleaned more comprehensively.

Of course, this can be achieved by adjusting the size of the spray holes, or the inclination angle, for example, as shown in fig. 9, the angle between the lower side surface of the upper row of spray holes 17 and the horizontal plane is smaller than the angle between the lower side surface of the lower row of spray holes 17 and the horizontal plane. Thus, the spray water of the upper row of spray holes 17 is easier to clean from the upper part of the filter screen downwards, and the lower row of spray holes 17 is easier to clean the middle lower part of the filter screen by spraying.

In addition, the heat pump cover plate 14 may form the water inlet channel 15 in various forms, for example, in one structural form, a water inlet pipe may be fixedly disposed on an outer plate surface or an inner plate surface of the heat pump cover plate 14, and then the water inlet pipe is connected with a nozzle;

alternatively, as shown in fig. 10 and 11, the water inlet passage 15 is a U-shaped passage, and the two straight passages 18 of the U-shaped passage are provided with water inlet structures, for example, a plurality of rows of shower holes 17 are formed on the passage walls 16 of the straight passages 18 arranged obliquely, so that the filter net can be more easily cleaned all over the straight passages 18. Further, as shown in fig. 8, 10 and 11, a water channel groove 20, for example, a U-shaped water channel, is formed on the outer plate surface 19 of the heat pump cover plate 14, and a water channel cover plate 21 is covered on the water channel groove 20 to form the water inlet channel 15.

Of course, as shown in fig. 11, the starting end of the water inlet channel 15 is formed with a water inlet, and the end is formed with a spray column which can extend into the corner of the confluence channel between the filter screens in the bottom shell of the heat pump, and the spray column is formed with a water outlet hole facing the corner to clean the corner, so as to prevent the flock from accumulating in the dead angle.

In addition, as shown in fig. 1, the filter screen mounting portion on the heat pump bottom case 13 includes a first filter screen mounting portion 3, wherein a backflow water inlet 4 is formed on the air duct wall of the air duct 2 located on one side of the first filter screen mounting portion 3, a backflow water outlet 5 is formed on the air duct wall of the air duct 2 located on the other side of the first filter screen mounting portion 3, and a backflow passage 6 communicating the backflow water inlet 4 and the backflow water outlet 5 is provided on the heat pump bottom case 13.

Thus, because the air duct walls of the air duct 2 located at the two sides of the first filter mounting portion 3 are respectively formed with the return water inlet 4 and the return water outlet 5, and the return water inlet 4 and the return water outlet 5 are communicated through the return channel 6, after the heat pump bottom shell is assembled with the washing machine, the washing machine water inlet system, such as the multiple rows of spraying holes 17 on the heat pump cover plate 14, can wash the first filter screen mounted on the first filter mounting portion 3, as shown in fig. 8, at this time, the washing water at one side of the first filter mounting portion (for example, seeps into one side of the first filter screen when washing the first filter screen, and/or washes the second filter screen) can flow back through the return water inlet 4, the return channel 6 and the return water outlet 5, such as flows back to the air suction opening 1, and then enters into the drum through the air suction pipe 12, while the washing water at the other side of the first filter mounting, and then enters the drum through the suction duct 12, thereby preventing the washing water from being accumulated at one side of the first screen mounting part 3.

It should be noted that the first filter mounting portion 3 is not limited to the one shown in fig. 1, and it should be understood that the first filter mounting portion 3 may be a plurality of first filters arranged at intervals along the air duct 2, so that a plurality of first filters, for example, two first filter mounting portions 3, may be arranged, so that two first filters may be mounted, so that the return water on one side of each first filter, for example, between two first filters, may flow to the return channel 6 through the respective return water inlet 4.

Further, as shown in fig. 1, 2 and 3, the air duct 2 is formed with a second filter mounting portion 7 arranged at a distance from the first filter mounting portion 3, wherein the return water inlet 4 is located between the first filter mounting portion 3 and the second filter mounting portion 7. Thus, the water washed by the second filter installed on the second filter installation part 7 can flow back through the backflow water inlet 4 and the backflow passage 6, and at this time, the second filter installation part 7 may be one, so that the second filter is located at the downstream side of one first filter (as shown in fig. 3) or a plurality of first filters arranged at intervals along the suction direction. Thus, the water inlet system of the washing machine can simultaneously clean the multiple layers of filter screens while water is supplied, or can specifically simultaneously clean the multiple layers of filter screens, and wash water on the downstream side can flow to the return channel 6 through the return inlet 4 to be returned.

Further, in order to facilitate the quick return of the washing water on the side of the first filter mounting portion 3, it is preferable that a bottom wall portion 8 of the air duct 2 between the first filter mounting portion 3 and the second filter mounting portion 7 is formed as a U-shaped water collection tank as shown in fig. 1. Thus, by the collecting action of the U-shaped water collection sump, the flushing water for flushing the second filter and/or the flushing water that has permeated from the first filter when flushing the first filter will be collected by the U-shaped water collection sump and subsequently flow into the return channel 6 through the return water inlet 4.

Further, in order to further facilitate the backflow of the washing water, it is preferable that the bottom wall portion 8 of the air duct 2 between the first filter mounting portion 3 and the second filter mounting portion 7 and the backflow passage 6 continuously extend obliquely downward in the direction of the backflow water. In this way, due to the continuously inclined arrangement, the flushing water in the bottom wall portion 8, such as a U-shaped water collection sump, will quickly pass back down through the return channel 6 and then be discharged from the return water outlet 5.

In addition, in order not to occupy the inner space of the bottom case of the heat pump, it is preferable that the return channel 6 is located outside the air duct 2 as shown in fig. 1. Thus, the backflow channel 6 is positioned outside the air duct 2, thereby not occupying any internal space of the air duct 2, not affecting the heat exchange area of the heat exchange unit of the drying system of the washing machine, and not affecting the ventilation area of the filter screen.

Of course, in the heat pump bottom case of the present invention, the return channel 6 may be formed by a pipe located outside the heat pump bottom case, for example, one end of the pipe is connected to the return water inlet 4, and the other end is connected to the return water outlet 5;

alternatively, in order to improve the structural stability, as shown in fig. 1 and 4, the duct side wall of the duct 2 includes an outwardly protruding protrusion 9, and the return passage 6 is formed in the protrusion 9. Thus, the extension part 9 is a part of the air duct side wall of the air duct 2, so that the heat pump bottom shell and the backflow channel 6 can be integrally formed by injection molding, and the backflow channel 6 is prevented from being formed by an external pipeline.

In addition, the return passage 6 may also be formed directly inside the duct side wall of the duct 2, that is, the duct side wall of the duct 2 does not protrude outward, but the return passage 6 is formed inside.

Of course, the return channel 6 can have various structures, such as a U-shaped channel, so as to facilitate the return of the return water in time.

In addition, in order to facilitate backflow and water inlet of the washing machine, as shown in fig. 2, the air suction opening 1 is formed in the air duct bottom wall 10 of the air duct 2 on the other side of the first filter screen mounting portion 3, and the backflow water outlet 5 is communicated with the air suction opening 1. Thus, the return water passing through the return water outlet 5 flows into the bottom wall 10 of the air duct and into the drum of the washing machine through the air suction opening 1, and the washing water of the first filter screen at the most upstream side can directly and smoothly flow back through the air suction opening 1.

In addition, as shown in fig. 3, since the plurality of first filter screens or the first filter screen and the second filter screen are connected in series, when the drying system of the washing machine is operated, the external circulation air must be filtered through the respective filter screens in sequence, and therefore, in order to improve the filtering effect, as shown in fig. 3, a one-way baffle 11 is provided at the backflow water outlet 5, wherein the one-way baffle 11 is configured to open the backflow water outlet 5 only under the effect of the backflow water that flows back through the backflow channel 6. Thus, as shown in fig. 5, when the drying system operates, the air inlet 1 starts to enter air under the action of the fan of the drying system, the one-way baffle 11 can close the backflow water outlet 5 under the action of self-weight closing and the flow direction pressure of the external circulation air to prevent the external circulation air from passing through each filter screen in sequence, and prevent part of the external circulation air from bypassing the upstream filter screen through the return channel 6; in the washing stage or the filter screen washing stage, as shown in fig. 6, the filter screens are washed while the water inlet system of the washing machine is supplying water, and the one-way baffle 11 can be opened under the flowing direction pressure of the return water to open the return water outlet 5, so as to allow the return water to be smoothly guided out and flow into the drum through the air suction inlet 1.

In addition, on the basis of any one of the heat pump bottom cases, the invention provides a washing machine comprising any one of the heat pump housings, wherein the filter screens of the washing machine are mounted on the corresponding filter screen mounting parts, for example, the first filter screen and the second filter screen are respectively mounted on the corresponding filter screen mounting parts, as shown in fig. 3, and the air suction opening 1 is connected with an air suction pipe 12 serving as a backflow water inlet pipe and connected with the drum outer cylinder of the washing machine.

Like this, washing machine is when intaking, can utilize the water intake system for example the intaking of structure of intaking to carry out the self-cleaning to the filter screen to need not the manual work to take out the clearance with the filter screen from the machine, that is, all can carry out the self-cleaning to the filter screen when intaking at every turn, this has guaranteed that the filter screen can obtain timely effectual clearance, ensures the amount of wind of stoving extrinsic cycle, has promoted drying efficiency.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the individual specific technical features in any suitable way. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.

Claims

1. A heat pump shell is characterized by comprising a heat pump bottom shell (13) and a heat pump cover plate (14), wherein the heat pump bottom shell (13) comprises an air duct (2) with an air suction opening (1), and a filter screen mounting part is formed in the air duct (2); a water inlet channel (15) is formed on the heat pump cover plate (14), a water inlet structure is arranged on the water inlet channel (15), a water channel groove (20) is formed on an outer plate surface (19) of the heat pump cover plate (14), and a water channel cover plate (21) is covered on the water channel groove (20) to form the water inlet channel (15);

wherein, the structure of intaking is close to the filter screen installation department sets up, makes the structure spun hydroenergy of intaking can be right install filter screen on the filter screen installation department washs.

2. The heat pump housing as claimed in claim 1, characterized in that the water inlet structure is a spray hole (17) formed in a water channel wall (16) of the water inlet channel (15) facing the screen mounting.

3. The heat pump housing as claimed in claim 2, characterized in that a plurality of rows of the shower holes (17) are formed in the height direction of the water intake channel (15), and the number of the shower holes in each row is plural.

4. The heat pump housing as claimed in claim 3, characterized in that the water channel wall (16) of the water inlet channel (15) facing the screen mounting is arranged obliquely.

5. The heat pump housing of claim 3, wherein the upper row of spray holes is proximate to the screen mounting portion and is configured to enable flushing of a screen mounted on the screen mounting portion from an uppermost portion down, and the lower row of spray holes is distal from the screen mounting portion and is configured to enable flushing of a lower middle portion of a screen mounted on the screen mounting portion.

6. The heat pump housing of claim 5, wherein the angle between the lower surface of the upper row of spray holes and the horizontal plane is less than the angle between the lower surface of the lower row of spray holes and the horizontal plane.

7. The heat pump housing according to claim 1, wherein the water inlet channel (15) is a U-shaped channel, and the water inlet structure is provided on two straight channels (18) of the U-shaped channel.

8. The heat pump housing of claim 1, wherein the filter screen mounting portion comprises a first filter screen mounting portion (3), wherein the air duct (2) is located on an air duct wall on one side of the first filter screen mounting portion (3) to form a backflow water inlet (4), the air duct (2) is located on an air duct wall on the other side of the first filter screen mounting portion (3) to form a backflow water outlet (5), and a backflow channel (6) communicating the backflow water inlet (4) with the backflow water outlet (5) is arranged on the heat pump bottom shell (13).

9. The heat pump housing as claimed in claim 8, characterized in that the air duct (2) is formed with a second filter mounting (7) arranged at a distance from the first filter mounting (3), wherein the return water inlet (4) is formed between the first filter mounting (3) and the second filter mounting (7).

10. The heat pump housing as claimed in claim 9, characterized in that the bottom wall (8) of the air duct (2) between the first filter mount (3) and the second filter mount (7) and the return channel (6) extend continuously obliquely downwards in the direction of the return water.

11. The heat pump housing as claimed in claim 8, characterized in that the return channel (6) is located outside the air duct (2).

12. The heat pump housing as claimed in claim 11, characterized in that the air duct wall of the air duct (2) comprises an outwardly projecting protrusion (9), the return channel (6) being formed in the protrusion (9).

13. The heat pump housing according to any one of claims 8 to 12, characterized in that a one-way flap (11) is provided at the return water outlet (5), wherein the one-way flap (11) is arranged to open the return water outlet (5) only under the influence of return water returning through the return channel (6).

14. A washing machine, characterized in that it comprises a heat pump housing according to any one of claims 1-13, wherein the filter screen of the washing machine is mounted on the corresponding filter screen mounting portion, and the suction inlet (1) of the air duct (2) is connected with a suction duct (12) connected with the drum outer cylinder of the washing machine.