阅读说明：本技术 过滤装置、判断其堵塞程度的方法、清洗方法和洗衣机 (Filter device, method for judging blockage degree of filter device, cleaning method and washing machine ) 是由 龙斌华 刘剑 毛建平 于 2019-08-30 设计创作，主要内容包括：本申请涉及洗涤设备技术领域,具体而言,涉及一种用于洗衣机烘干风道的过滤装置、判断该过滤装置堵塞程度的方法、该过滤装置的清洗方法,还涉及包括该过滤装置的洗衣机。过滤装置包括第一过滤器、第一静压测量装置和第二静压测量装置,第一过滤器设置于冷凝端的进风口处；第一静压测量装置用于检测冷凝端进风口处的静压值,且测压点位于第一过滤器的进风侧；第二静压测量装置用于检测冷凝端出风口处的静压值。通过检测第一过滤器进风侧和冷凝端出风口处的静压值来判断洗干一体机烘干风道中的过滤装置是否需要清洗,简化并缩短系统判断过滤装置清洗的时间,同时也更为精确,与系统自动清洗过滤装置相比,节约了系统运行用水量。(The application relates to the technical field of washing equipment, in particular to a filtering device for a drying air duct of a washing machine, a method for judging the blocking degree of the filtering device, a cleaning method of the filtering device and the washing machine comprising the filtering device. The filtering device comprises a first filter, a first static pressure measuring device and a second static pressure measuring device, and the first filter is arranged at an air inlet of the condensation end; the first static pressure measuring device is used for detecting a static pressure value at an air inlet of the condensation end, and a pressure measuring point is positioned on the air inlet side of the first filter; and the second static pressure measuring device is used for detecting a static pressure value at an air outlet of the condensation end. Whether filter equipment in the drying air duct of the washing and drying all-in-one machine needs to be cleaned or not is judged by detecting static pressure values at the air inlet side of the first filter and the air outlet of the condensation end, the cleaning time of the filter equipment is simplified and shortened, meanwhile, the system is more accurate, and compared with an automatic cleaning filter equipment of the system, the water consumption for running the system is saved.)

1. The utility model provides a filter equipment for washing machine stoving wind channel, stoving wind channel is including barrel (1), condensation end (2) and the heating end (3) that set gradually, its characterized in that, filter equipment includes:

the first filter (4) is arranged at an air inlet of the condensation end (2);

the first static pressure measuring device (5) is used for detecting a static pressure value at an air inlet of the condensation end (2), and a pressure measuring point is positioned on the air inlet side of the first filter (4);

and the second static pressure measuring device (6) is used for detecting the static pressure value at the air outlet of the condensation end (2).

2. The filtering device according to claim 1, further comprising a second filter (7) disposed at the air outlet of the cylinder (1), wherein the air outlet of the cylinder (1) is connected with the air inlet of the condensation end (2) through a hose (8).

3. A filter device as claimed in claim 2, characterised in that the hose (8) is a flexible rubber tube.

4. A filter device as claimed in claim 2, characterised in that the first filter (4) and the second filter (7) are both filter screens.

5. The filtering device according to claim 2, characterized in that the first filter (4) and the second filter (7) are detachably mounted on the drying air duct.

6. A method for judging the clogging degree of the filtering device according to any one of claims 1 to 5, wherein before the drying program is run, the static pressure values of the air inlet side of the first filter and the air outlet of the condensation end are respectively detected, the clogging degree of the filtering device is judged according to the change of the static pressure values, and the change is fed back to a user to prompt the user to clean or replace the filtering device.

7. The method of claim 6, wherein the first static pressure measuring device and the second static pressure measuring device transmit the static pressure values of the air inlet side of the first filter and the air outlet of the condensation end to a main control board of the washing machine, respectively, and the main control board compares the difference value of the measured static pressure values with a standard value and judges the clogging degree of the lint filter.

8. The method for judging the clogging degree of a filtering apparatus according to claim 6, comprising the steps of:

after the washing program is finished and before the drying program is started, detecting to obtain a static pressure value P1 at the air inlet side of the first filter, and detecting to obtain a static pressure value P2 at the air outlet of the condensation end;

and comparing the static pressure value P1 with the static pressure value P2, and if P1-P2 are more than or equal to K delta P, the filtering device is seriously blocked and reminds a user of cleaning or replacing, wherein K is an adjustment coefficient, K is more than or equal to 1.1, and delta P is the difference of the static pressure values of the air inlet side of the first filter and the air outlet of the condensation end measured when the washing machine leaves the factory.

9. The method for judging the clogging degree of a filtering apparatus according to claim 8, wherein the adjustment coefficient K has a value of 1.2.

10. A cleaning method of a filtering device for a drying air duct of a washing machine is characterized by comprising the following steps:

determining the degree of clogging of a filtration device using the method of any one of claims 6 to 9;

and if the user is prompted to clean the filtering device, cleaning the filtering device after the drying program is finished.

11. The method of claim 10, wherein the method of cleaning the filter device comprises removing the first filter and manually cleaning the first filter, and if the filter device has a second filter, removing the second filter and manually cleaning the second filter.

12. The method of cleaning a filter device according to claim 11, further comprising, after cleaning the filter device: and the filter is replaced into the unit, and then the washing machine is shut down after the filter is heated and dried by utilizing the circulating hot air in the drying air duct and the dehumidification effect of the condensation end.

13. A washing machine characterized by comprising the filtering device for a drying duct of a washing machine according to any one of claims 1 to 5.

Technical Field

The application relates to the technical field of washing equipment, in particular to a filtering device for a drying air duct of a washing machine, a method for judging the blocking degree of the filtering device, a cleaning method of the filtering device and the washing machine comprising the filtering device.

Background

At present, most of condensation phase change ends of the electric heating washing and drying integrated drying air channel are in a rear-mounted type, a good flock filtering scheme is not available temporarily, and a part of merchants do not adopt filtering directly. The drying system inevitably sucks the fluff and the thread ends of the clothes due to long-time drying of the clothes, so that the drying effect is poor. And the accumulated dirt such as the burrs, the thread ends and the like is blocked in the whole air duct system, and is circularly baked for a long time, so that peculiar smell in an air duct is caused, the washing and the use of a user are influenced, and the unit failure is caused when the condition is more serious. The cleaning of the drying system mainly depends on the unscheduled manual cleaning of users or after-sales personnel, which is time-consuming and labor-consuming.

Patent No. CN201410218989.3 discloses a filtering structure for washing and automatic cleaning, which needs to add an additional water inlet and an electric cleaning device, and increases the structural complexity, operation time and cost; patent No. CN201811296515.5 discloses a transposition device for exchanging filter screens, but it has a complicated driving device, occupies a large space, and cannot achieve light weight of the housing; the mode of judging whether the filter screen needs to be cleaned in some technical schemes is drying time, but the judging mode is indirect judgment.

Disclosure of Invention

In order to solve the technical problem, the application provides a filtering device for a drying air duct of a washing machine, a method for judging the blockage degree of the filtering device, a cleaning method of the filtering device and the washing machine comprising the filtering device.

In order to achieve the above object, according to one aspect of the present invention, there is provided a filter device for a drying duct of a washing machine.

According to the filter equipment who is used for washing machine stoving wind channel according to this application embodiment, stoving wind channel is including barrel, condensation end and the heating end that sets gradually, filter equipment includes:

the first filter is arranged at an air inlet of the condensation end;

the first static pressure measuring device is used for detecting a static pressure value at an air inlet of the condensation end, and a pressure measuring point is positioned on the air inlet side of the first filter;

and the second static pressure measuring device is used for detecting the static pressure value at the air outlet of the condensation end.

Furthermore, the filtering device further comprises a second filter arranged at the air outlet of the cylinder body, and the air outlet of the cylinder body is connected with the air inlet of the condensation end through a hose.

Further, the hose is a telescopic rubber tube.

Furthermore, the first filter and the second filter are both filter screens.

Furthermore, the first filter and the second filter are detachably mounted on the drying air duct.

In order to achieve the above object, according to a second aspect of the present invention, there is provided a method for judging a clogging degree of a filter device.

According to the method provided by the embodiment of the present application, the method for judging the clogging degree of the filtering device provided by the present application specifically includes: before the drying program runs, static pressure values of the air inlet side of the first filter and the air outlet of the condensation end are respectively detected, the blocking degree of the filtering device is judged according to the change of the static pressure values, and the blocking degree is fed back to a user to prompt the user to clean or replace the filtering device.

Further, the first static pressure measuring device and the second static pressure measuring device respectively transmit static pressure values of the air inlet side of the first filter and the air outlet of the condensation end to a main control board of the washing machine, and the main control board compares a difference value of the measured static pressure values with a standard value and judges the blocking degree of the lint filter.

Further, after the washing program is finished and before the drying program is started, detecting to obtain a static pressure value P1 at the air inlet side of the first filter, and detecting to obtain a static pressure value P2 at the air outlet of the condensation end;

and comparing the static pressure value P1 with the static pressure value P2, and if P1-P2 are more than or equal to K delta P, the filtering device is seriously blocked and reminds a user of cleaning or replacing, wherein K is an adjustment coefficient, K is more than or equal to 1.1, and delta P is the difference of the static pressure values of the air inlet side of the first filter and the air outlet of the condensation end measured when the washing machine leaves the factory.

Further, the value of the adjustment coefficient K is 1.2.

In order to achieve the above object, according to a third aspect of the present invention, there is provided a method for cleaning a filter device of a drying duct of a washing machine.

According to the embodiment of the application, the cleaning method of the filtering device for the drying air duct of the washing machine comprises the following steps:

judging the blockage degree of the filtering device by adopting the method for judging the blockage degree of the filtering device provided by the technical scheme of the application;

and if the user is prompted to clean the filtering device, cleaning the filtering device after the drying program is finished.

Further, the method for cleaning the filtering device is that the first filter is detached and the first filter is cleaned manually, and if the filtering device is provided with the second filter, the second filter is detached and the second filter is cleaned manually at the same time.

Further, after the filtering device is cleaned, the method further comprises the following steps: and the filter is replaced into the unit, and then the washing machine is shut down after the filter is heated and dried by utilizing the circulating hot air in the drying air duct and the dehumidification effect of the condensation end.

In order to achieve the above object, according to a fourth aspect of the present invention, there is provided a washing machine.

The washing machine according to the embodiment of the application comprises the filtering device for the drying air duct of the washing machine provided by the technical scheme of the application.

The technical scheme that this application embodiment provided can judge through the static pressure value that detects first filter air inlet side and condensation end air outlet department whether filter equipment in the all-in-one stoving wind channel of washing and drying needs wash, simplifies and shortens the abluent time of system judgement filter equipment, and is also more accurate simultaneously, compares with system self-cleaning filter equipment, has practiced thrift the system operation water consumption.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

fig. 1 schematically shows a simplified rear view of a washing machine according to the present solution;

FIG. 2 schematically illustrates a simplified side view of the washing machine of the present solution;

FIG. 3 is a schematic view of a filter partially disposed in a canister;

FIG. 4 is a schematic view of a dryer end placement filter;

FIG. 5 is a schematic overall view showing the placement of the filter in the drying section and the drum;

FIG. 6 is a partial enlarged view of portion A of FIG. 5;

FIG. 7 is a block diagram schematically illustrating a control structure of the inside of the washing machine;

FIG. 8 is a flow chart that schematically illustrates a method for determining the degree of clogging of a filter device;

and

fig. 9 is a flow chart schematically illustrating a method for cleaning a filter device of a drying duct of a washing machine.

In the figure:

1. a barrel; 2. a condensing end; 3. a heating end; 4. a first filter; 5 a first static pressure measuring device; 6. a second static pressure measuring device; 7. a second filter; 8. a hose; 9. a side plate; 10. a main control board; 11. a door body; 12. and a working hole.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying examples and figures 1-9.