Clothes cleaning equipment and impurity filtering system thereof

Abstract

The invention discloses an impurity filtering system, and relates to the technical field of electrical equipment, the impurity filtering system comprises a roller and a heat pump assembly which are mounted in a shell of clothes cleaning equipment, and further comprises a filter which is detachably arranged on an interaction surface of the shell; and the filter is communicated between the air return port of the roller and the input port of the heat pump assembly. Thus, the filter is integrally arranged between the air return opening of the roller and the input opening of the heat pump assembly, impurities in the roller are filtered out, the filter is detachably connected with the shell on the interaction face of the shell, and the interaction face of the shell needs to be reserved to conduct man-machine interaction with a user, so that the interaction face is inevitably open and exposed outside, and therefore the interaction face of the shell is not damaged. Therefore, a user can conveniently carry out maintenance operations such as mounting and dismounting on the filter on the interactive surface of the shell, and meanwhile it is guaranteed that the clothes cleaning equipment can be installed in an embedded mode. The invention further discloses clothes cleaning equipment which has the beneficial effects mentioned above.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to an impurity filtering system. The present invention also relates to a clothing cleaning device. Background Art

[0002] Clothes cleaning equipment is a common household appliance. With the development of technology, various types of clothes cleaning equipment have been widely used on the market, such as washing machines, dryers, and washer-dryers.

[0003] Traditional clothes cleaning equipment is not equipped with impurity filters. During long-term operation, hair, paper scraps, gravel and other foreign matter carried on the clothes can easily enter the air duct, pollute the heat pump assembly, and even damage the heat pump assembly and block the air duct, making it difficult to quickly dry the clothes after washing and dehydration. The impurity filter is generally set before the return air in the drum enters the evaporator in the heat pump assembly (the return air in the drum first enters the evaporator in the heat pump assembly) to protect the evaporator.

[0004] As an improvement, some clothing cleaning devices in the prior art are equipped with impurity filters, such as some heat pump dryers, some integrated washing and drying machines, etc. Among them, the impurity filter of a common heat pump dryer is generally set at the front lower part of the drum inside the door, and the installation position is relatively hidden. When cleaning and maintenance are required, the drum door must be opened first, and then the operation is performed inside the drum, which makes the operation more troublesome and the disassembly and maintenance efficiency is low. The impurity filter of a common integrated washing and drying machine is generally set at the top of the shell. When cleaning and maintenance are required, the impurity filter must be completely pulled out from the top of the shell before operation can be performed. Although its operation is more convenient than that of a common heat pump dryer, it has higher requirements for the vertical operating space, which often makes it impossible to achieve embedded installation of the entire device in a space such as a wall or a cabinet.

[0005] Therefore, how to conveniently and quickly realize the disassembly, assembly and maintenance operations of the filter while ensuring that the entire device can be embedded installed is a technical problem faced by those skilled in the art. Summary of the invention

[0006] The object of the present invention is to provide an impurity filtering system, which can realize the disassembly, assembly and maintenance of the filter conveniently and quickly, while ensuring that the whole device can be embedded. Another object of the present invention is to provide a clothing cleaning device.

[0007] In order to solve the above technical problems, the present invention provides an impurity filtering system, including a drum and a heat pump assembly installed in a shell of a clothing cleaning device, and also including a filter, which is detachably arranged on the interaction surface of the shell, and the filter is connected between the return air outlet of the drum and the input port of the heat pump assembly.

[0008] Preferably, the axial front end of the drum is sleeved with a door seal, and the return air outlet is opened on the door seal.

[0009] Preferably, an air inlet is provided at the axial rear end of the drum, and the air inlet is connected to the output port of the heat pump assembly.

[0010] Preferably, the filter comprises a handle portion and a filter element connected to the handle portion, the filter element has a filter tip, and the filter tip is connected to the return air port.

[0011] Preferably, a mounting slot is provided on the interaction surface, and the filter is slidably and pluggably arranged in the mounting slot.

[0012] Preferably, a snap-in slot is formed on the inner side wall of the installation notch, and a buckle for snap-fitting with the snap-in slot is provided on the side wall of the handle portion.

[0013] Preferably, a transition air duct is connected in the installation slot, the filter element is installed in the transition air duct, and one end of the transition air duct is connected to the input port.

[0014] Preferably, a plurality of guide ribs are protruding from each inner wall of the transition air duct to guide the return air flow.

[0015] Preferably, a seal is provided between the handle and the mounting slot, and between the filter and the return air port.

[0016] The present invention further provides a clothing cleaning device, comprising a shell and an impurity filtering system arranged in the shell, wherein the impurity filtering system is specifically any of the impurity filtering systems described above.

[0017] The impurity filtering system provided by the present invention mainly includes a drum, a heat pump assembly and a filter. Among them, the drum is installed in the housing of the clothing cleaning device, and can perform a rotational motion to roll and wash the clothes. It is also used to roll the clothes when drying them so that the clothes are dried evenly. The heat pump assembly is also installed in the housing of the clothing cleaning device, mainly including an evaporator, a condenser, a fan, etc., and is mainly used to form a circulating air duct with the drum so that the hot air can dry the clothes when passing through the drum. The filter is a core component, which is specifically arranged on the interaction surface of the housing (the interaction surface is one of the surfaces on the housing that can interact with the user, such as opening / closing the drum door, button operation, etc.), and forms a detachable connection with the interaction surface of the housing, so that the filter can be easily installed and removed on the interaction surface of the housing. At the same time, the filter is connected as a whole between the return air port of the drum and the input port of the heat pump assembly, so that before the hot air flow returns from the return air port of the drum to the heat pump assembly (evaporator), it must first pass through the filter, thereby filtering the impurities entrained in the hot air flow, preventing foreign matter from blocking the return air port or damaging the heat pump assembly. In this way, the impurity filtering system provided by the present invention arranges the filter as a whole between the return air outlet of the drum and the input port of the heat pump assembly to filter the impurities in the drum, and the filter is detachably connected with the shell on the interaction surface. Since the interaction surface of the shell needs to be reserved for human-computer interaction with the user, the interaction surface must be open and exposed to the outside, so that the user can conveniently perform maintenance operations such as installation and removal of the filter on the interaction surface of the shell; at the same time, when installing the clothes cleaning device, since the interaction surface of the shell is exposed to the outside and the filter is arranged on the interaction surface, the disassembly and assembly operation of the filter does not need to occupy the space in other positions of the shell, ensuring that the clothes cleaning device can be embedded. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1 The present invention provides a schematic diagram of the overall structure of a specific implementation method.

[0020] Figure 2 for Figure 1 Front view of.

[0021] Figure 3 Schematic diagram of the specific structure of the shell.

[0022] Figure 4Schematic diagram of the specific structure of the filter.

[0023] Figure 5 It is a schematic diagram of the specific structure of the control panel and the card slot.

[0024] Figure 6 This is the specific structural explosion diagram of the transition air duct.

[0025] Figure 7 It is a cross-sectional view of the assembly structure of the filter and the mounting notch.

[0026] in, Figure 1 — Figure 7 middle:

[0027] Shell—1, drum—2, heat pump assembly—3, filter—4, door seal—5, seal—6;

[0028] Interaction surface—1a, installation notch—11, card slot—12, transition air duct—13, guide rib—14, control panel—15, connection hole—16;

[0029] Return air outlet—21, air inlet—22;

[0030] Input port—31, output port—32, evaporator—33, condenser—34, fan—35;

[0031] Handle portion—41, filter element—42, filter tip—43. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the overall structure of a specific implementation method provided by the present invention (the arrows in the figure represent airflow).

[0034] In a specific implementation manner provided by the present invention, the impurity filtering system mainly includes a drum 2 , a heat pump assembly 3 and a filter 4 .

[0035] The drum 2 is installed in the housing 1 of the clothing cleaning device and can rotate to roll and wash the clothes. It is also used to roll the clothes when drying them so that the clothes are dried evenly.

[0036] The heat pump assembly 3 is also installed in the housing 1 of the clothing cleaning device, and mainly includes an evaporator 33, a condenser 34, a fan 35, etc., which is mainly used to form a circulating air duct with the drum 2 so that the hot air can dry the clothes when passing through the drum 2. Among them, the evaporator 33 is mainly used to dehumidify the medium-temperature and high-humidity airflow carrying the water vapor of the clothes to form low-temperature and low-humidity air. The condenser 34 is mainly used to heat the low-temperature and low-humidity air output by the evaporator 33 to form high-temperature and low-humidity air. The fan 35 is mainly used to accelerate the high-temperature and low-humidity air output by the condenser 34 to quickly enter the drum 2.

[0037] The filter 4 is a core component, which is specifically arranged on the interaction surface 1a of the housing 1 and is detachably connected to the interaction surface 1a of the housing 1, so that the filter 4 can be easily installed and removed on the interaction surface 1a of the housing 1. The interaction surface 1a is one of the surfaces on the housing 1 that can interact with the user, such as opening / closing the cylinder door, key operation, etc., and is generally the front side of the housing 1.

[0038] At the same time, the filter 4 is integrally connected between the return air port 21 of the drum 2 and the input port 31 of the heat pump assembly 3, so that before the hot air flow returns from the return air port 21 of the drum 2 to the heat pump assembly 3 (the evaporator 33), it must first pass through the filter 4, thereby filtering impurities entrained in the hot air flow to prevent foreign matter from clogging the return air port 21 or damaging the heat pump assembly 3.

[0039] In this way, the impurity filtering system provided in this embodiment arranges the filter 4 as a whole between the return air outlet 21 of the drum 2 and the input port 31 of the heat pump assembly 3 to filter the impurities in the drum, and the filter 4 is detachably connected with the shell 1 on the interaction surface 1a. Since the interaction surface 1a of the shell 1 needs to be reserved for human-computer interaction with the user, the interaction surface 1a must be open and exposed to the outside, so that the user can conveniently perform maintenance operations such as installation and removal of the filter 4 on the interaction surface 1a of the shell 1; at the same time, when installing the clothes cleaning device, since the interaction surface 1a of the shell 1 is exposed to the outside and the filter 4 is arranged on the interaction surface 1a, the disassembly and assembly operation of the filter 4 does not need to occupy the space in other positions of the shell 1, ensuring that the clothes cleaning device can be embedded.

[0040] like Figure 2 As shown, Figure 2 for Figure 1 Front view of.

[0041] In an optional embodiment of the return air outlet 21, a door seal 5 is sleeved at the axial front end position of the drum 2, such as the axial front end edge position of the drum 2, and the door seal 5 is mainly used to cooperate with the drum door to achieve the sealing effect of the drum 2. The specific structure of the door seal 5 is similar to a sealing ring and is annular. It is important that the return air outlet 21 of the drum 2 is specifically opened on the door seal 5, so that the hot air flow can flow back to the heat pump assembly 3 from the front side of the drum 2 through the return air outlet 21 after drying the clothes in the drum 2.

[0042] Generally, the return air vent 21 is specifically opened in the top area of ​​the door seal 5, such as the top middle area, the top right area, or the top left area of ​​the door seal 5. The specific position is not limited and can be adjusted according to the actual installation space. Of course, considering that the filter 4 is generally set on one side of the control panel 15 on the housing 1, the specific opening position of the return air vent 21 is also determined according to the setting orientation of the filter 4. For example, if the filter 4 is set on the right side of the control panel 15, the return air vent 21 is correspondingly opened in the top right area of ​​the door seal 5.

[0043] Correspondingly, an air inlet 22 is also provided on the drum 2. In the present embodiment, the air inlet 22 of the drum 2 is specifically provided at the rear end of the axial direction thereof, opposite to the return air inlet 21, and respectively located at the two ends of the axial direction of the drum 2. The air inlet 22 is connected with the output port 32 of the heat pump assembly 3 to introduce the dry hot air flow into the drum 2. In this arrangement, the hot air flow is introduced from the air inlet 22 at the rear end of the drum 2, flows along the axial direction of the drum 2 to the return air inlet 21 at the front end, dries the clothes in the middle, and then flows back to the heat pump assembly 3, thereby forming a circulating flow.

[0044] Furthermore, in order to extend the contact time and contact area of ​​the hot air flow with the clothes in the drum 2 as much as possible, in this embodiment, the circumferential position (or angular position) of the return air port 21 on the drum 2 is staggered with the circumferential position (or angular position) of the air inlet 22 on the drum 2. Such an arrangement can avoid the hot air flow from the air inlet 22 to form an axial straight flow channel and directly reach the return air port 21, but make the hot air flow from the air inlet 22 to form a spiral flow channel along the circumference of the drum 2 to reach the return air port 21, thereby greatly extending the contact time and contact area of ​​the hot air flow with the clothes in the drum 2, and improving the clothes drying efficiency.

[0045] like Figure 3 As shown, Figure 3 It is a schematic diagram of the specific structure of the housing 1.

[0046] In order to facilitate the assembly and disassembly operation of the filter 4 on the interaction surface 1a of the housing 1, in this embodiment, a mounting notch 11 is provided on the interaction surface 1a, and the filter 4 is inserted into the mounting notch 11 to form a movable plug-in connection. With such a configuration, when installing the filter 4, the filter 4 only needs to be slid as a whole to the depth of the mounting notch 11 to complete the insertion; when removing the filter 4, the filter 4 only needs to be gradually pulled outwards so that the filter 4 slides out of the mounting notch 11 as a whole.

[0047] Of course, the detachable connection between the filter 4 and the interaction surface 1a of the housing 1 is not limited to the above-mentioned sliding plug-in connection, and other methods such as snap-on connection, fastener connection, etc. can also be used.

[0048] like Figure 4 As shown, Figure 4 It is a schematic diagram of the specific structure of the filter 4.

[0049] In an optional embodiment of the filter 4, the filter 4 mainly includes a handle portion 41 and a filter element 42. The handle portion 41 is mainly used for the user to grasp and apply force to pull the filter 4 out of the mounting slot 11 as a whole. The filter element 42 is connected to the handle portion 41 and is installed deep inside the mounting slot 11, and is mainly used to filter the air to intercept impurities. A filter nozzle 43 is provided at one end of the filter element 42, and the filter nozzle 43 is connected to the return air port 21 to introduce the return air flow into the filter element 42 for filtration, and the filtered return air flow naturally flows out from the other end of the filter element 42 and is sent to the input port 31 of the heat pump assembly 3.

[0050] like Figure 6 As shown, Figure 6 It is a specific structural explosion diagram of the transition air duct 13.

[0051] Furthermore, in order to facilitate the flow of the filtered return air to the input port 31 of the heat pump assembly 3, a transition air duct 13 is added in this embodiment. One end of the transition air duct 13 is connected to the inner end of the installation slot 11, and the other end of the transition air duct 13 is connected to the input port 31 of the heat pump assembly 3. After the filter element 42 in the filter 4 is inserted into the installation slot 11, it is located in the transition air duct 13. In this way, when the return air flows out from the other end of the filter element 42, it can enter the input port 31 of the heat pump assembly 3 along the transition air duct 13.

[0052] Furthermore, considering that the filter air duct is generally installed in the top area of ​​the shell 1 and is usually installed in a horizontal posture, vertical and horizontal curved flow channels are formed between the return air port 21 and the transition air duct 13. In order to reduce wind resistance and noise, in this embodiment, the inner wall of the filter element 42 facing the filter mouth 43 is specifically arc-shaped, so that the return air flow can flow smoothly along the inner wall into the transition air duct 13, thereby realizing the turning flow of the return air flow.

[0053] Moreover, the present embodiment also has a plurality of guide ribs 14 protruding from each inner wall of the transition air duct 13. Each guide rib 14 is triangular, wedge-shaped, streamlined or arc-shaped, and is mainly used to guide the return air flow out of the filter element 42. It can also be used to achieve the limited installation of the filter element 42, such as supporting the bottom of the filter element 42, clamping the side wall of the filter element 42, etc.

[0054] Taking into account that there is a certain distance between the return air outlet 21 on the door seal 5 and the filter tip 43 of the filter element 42, in order to facilitate the connection between the two, this embodiment provides a connecting hole 16 extending downward by a preset distance at the bottom of the front end of the transition air duct 13 (the end close to the installation slot 11), the filter tip 43 of the filter element 42 is connected to the connecting hole 16, and the bottom extending end of the connecting hole 16 is connected to the return air outlet 21 on the door seal 5 through a hose or the like.

[0055] like Figure 5 As shown, Figure 5 It is a schematic diagram of the specific structure of the control panel 15 and the card slot 12.

[0056] In addition, in order to improve the installation stability of the filter 4 in the installation slot 11, in this embodiment, a clamping slot 12 is provided on the inner side wall of the installation slot 11, and a buckle is provided on the side wall of the handle portion 41 of the filter 4, so that the filter 4 is fixed in the installation slot 11 through the clamping fit formed between the buckle and the buckle. At the same time, the buckle can be adjusted to adjust the clamping degree between the clamping slot 12, and then adjust the sliding tightness of the filter 4 in the installation slot 11.

[0057] like Figure 7 As shown, Figure 7 It is a cross-sectional view of the assembly structure of the filter 4 and the mounting notch 11 .

[0058] In addition, in order to improve the air duct sealing after the filter 4 is installed, the present embodiment provides a seal 6, such as a sealing ring, a sealant, etc., between the side wall of the handle portion 41 of the filter 4 and the inner wall of the installation slot 11, and between the outer wall of the filter tip 43 of the filter element 42 and the inner wall of the return air port 21, so as to achieve double sealing. Among them, the sealing between the outer wall of the filter tip 43 of the filter element 42 and the inner wall of the return air port 21 can be achieved by providing a seal 6 between the outer wall of the filter tip 43 of the filter element 42 and the inner wall of the connection hole 16 of the transition air duct 13. At the same time, through the cooperation between the aforementioned buckle and the slot 12, each seal 6 can also be pressed at the same time to enhance the sealing performance.

[0059] The present embodiment also provides a clothing cleaning device, which mainly includes a housing 1 and an impurity filtering system disposed in the housing 1, wherein the impurity filtering system is the same as the above-mentioned related content and is not repeated here. It should be noted that the impurity filtering system provided in the present embodiment is particularly suitable for heat pump type washing and drying machines, and can also be used for equipment such as drying machines.

[0060] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An impurity filtering system, comprising a drum (2) and a heat pump assembly (3) installed in a housing (1) of a clothes cleaning device, characterized in that: It also comprises a filter (4), the filter (4) being detachably arranged on the interaction surface (1a) of the shell (1), and the filter (4) being connected between the return air port (21) of the drum (2) and the input port (31) of the heat pump assembly (3).

2. The impurity filtering system according to claim 1, characterized in that: The axial front end of the drum (2) is sleeved with a door seal (5), and the return air port (21) is opened on the door seal (5).

3. The impurity filtering system according to claim 2, characterized in that: An air inlet (22) is provided at the axial rear end of the drum (2), and the air inlet (22) is connected to the output port (32) of the heat pump assembly (3).

4. The impurity filtering system according to any one of claims 1 to 3, characterized in that: The filter (4) comprises a handle portion (41) and a filter element (42) connected to the handle portion (41); the filter element (42) has a filter tip (43); and the filter tip (43) is in communication with the return air port (21).

5. The impurity filtering system according to claim 4, characterized in that: The interaction surface (1a) is provided with a mounting slot (11), and the filter (4) is slidably inserted and removed in the mounting slot (11).

6. The impurity filtering system according to claim 5, characterized in that: The inner side wall of the installation slot (11) is provided with a clamping slot (12), and the side wall of the handle portion (41) is provided with a buckle for forming a clamping fit with the clamping slot (12).

7. The impurity filtering system according to claim 5, characterized in that: The installation slot (11) is connected to a transition air duct (13), the filter element (42) is installed in the transition air duct (13), and one end of the transition air duct (13) is connected to the input port (31).

8. The impurity filtering system according to claim 7, characterized in that: A plurality of guide ribs (14) are protrudingly provided on each inner wall of the transition air duct (13) for guiding the return air flow.

9. The impurity filtering system according to claim 5, characterized in that: A sealing member (6) is provided between the handle portion (41) and the installation slot (11), and between the filter (43) and the return air port (21).

10. A clothes cleaning device, comprising a housing (1) and an impurity filtering system arranged in the housing (1), characterized in that: The impurity filtering system is specifically the impurity filtering system according to any one of claims 1-9.

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