JP7458320B2 - washing machine - Google Patents

Description

FIELD OF THE INVENTION The present invention is in the field of cleaning equipment, and in particular relates to washing machines and filtration devices, and in particular to drainable washing machine filtration devices and washing machines.

In general, a conventional fully automatic pulsator washing machine is composed of an inner tub, an outer tub, a damper, and a power system. During washing and spin-drying, the inner tub rotates relative to the outer tub, creating an interaction between the clothes and the washing water, thereby achieving the purpose of washing or spin-drying the clothes. The outer tub is attached to the outside of the inner tub to support the inner tub. The outer tub also serves as a water tank. The side wall of the inner tub has drainage holes evenly arranged to connect the inner tub and the outer tub. During the washing process, clothes are placed in the inner tub, and the water levels in the two tubs are at the same height, but the outer tub does not come into contact with the clothes. In addition, since the outer tub of a conventional washing machine has a larger volume than the inner tub, a large amount of washing water is stored between the inner tub and the outer tub, but the washing liquid between these tubs cannot be fully utilized. As a result, the amount of water used during washing increases, the concentration of the washing liquid during washing decreases, and the overall volume of the washing machine becomes excessively large. In addition, after a certain period of use, dirt accumulates on the inner walls of the outer tub and the outer walls of the inner tub, eventually causing mold to grow, contaminating the laundry. In addition, the tub walls are difficult to clean.

Some manufacturers are making improvements in response to this situation. In order to conserve water resources, many washing machines use an inner tank without holes, and by separating the inner and outer tanks, water is stored only in the inner tank without being present in the outer tank. ing. In addition, a drainage hole is provided near the upper end of the side wall of the inner tank. In this case, when the washing machine spins water, the water is swung toward the inner wall of the inner tub by centrifugal force, moves upward along the inner wall of the inner tub, and is then discharged from the drain hole at the top of the inner tub. This improves the water-saving effect of the washing machine and also reduces the amount of detergent used.

However, the above solution has the following problems. That is, since the washing machine rotates at high speed during spin-drying, when the water in the clothes is shaken out from the drain hole in the side wall of the inner tub, it collides with the side wall of the outer tub and is easily scattered in all directions. As a result, water remains on the inner wall of the outer tank for a long period of time, making it easy for bacteria to grow, making it less environmentally friendly.

In addition, in order to increase the washing capacity of a washing machine, a larger inner tub is required. That is, it is necessary to increase the height or diameter of the inner tank. Moreover, if the inner tank has a larger size, the outer tank and housing that accommodate the inner tank must also be enlarged as the inner tank expands.

However, the expansion of the washing machine housing is restricted by the space available for installing the washing machine. In a typical user's home, there is a limit to where a washing machine can be installed, so it is not very realistic to achieve the goal of increasing the capacity of the washing tub by expanding the housing. Therefore, how to increase the capacity of the inner tub without expanding the washing machine housing is a major challenge that plagues designers.

Patent Document 1 discloses a one-tub type water-saving washing machine. In this washing machine, a water collection device is provided at the mouth of the washing tank, and the water collection port of the water collection device surrounds the mouth of the washing tank along the washing tank. A water collection chamber located at the tank mouth portion of the water collection device is connected to a plurality of drain pipes arranged symmetrically from top to bottom along the outer wall of the washing tank. During dewatering, a water collection device collects the water flow centrifuged by high-speed rotation, guides it downward, and discharges it. Although the outer tank is omitted in this structure, when the washing machine spins water, the washing water first enters the water collection device. However, the water collection device has an annular structure, and the downward drainage speed of the cleaning water accumulated inside the device is different, which impairs the balance when the cleaning tank rotates at high speed. In addition, the washing water enters the water collection device, is guided to the lower part of the washing tank, and is collected at the center before being discharged, which is disadvantageous for drainage. For this reason, it is difficult to drain the water concentrated in the water collection chamber due to the action of centrifugal force, and as a result, the washing water concentrates at the upper end of the washing tank, which increases the weight of the upper part of the washing tank, further impairing the balance. In particular, if there is a large amount of water remaining in the cleaning tank, most of the cleaning water will be concentrated in the water collection chamber and will not be discharged, which will raise the center of gravity of the cleaning tank and the outer tank, causing extremely large vibrations and noise. occurs. Furthermore, the operating load on the dewatering motor increases, making the motor more likely to be damaged. Finally, the water collecting device is installed at the top of the cleaning tank, and the radial displacement is the largest when the top eccentrically rotates when the cleaning tank rotates during dewatering. Therefore, in order to avoid collision between the water collection device and the washing machine casing, a safe distance must be maintained between the water collection device and the casing, making it impossible to truly achieve the purpose of increasing capacity. Can not.

In view of the above, the present invention is proposed.

China Patent Application No. 99230455.5

The technical problem to be solved by the present invention is to provide a filtration device for a washing machine that eliminates the defects of the prior art, quickly guides and discharges water, and reduces eccentricity during dewatering of the washing tank. It is.

Another object of the present invention is to provide a washing machine that is equipped with the filtration device and achieves a capacity increase effect.

In order to solve the above technical problems, the basic idea of the technical solution adopted in the present invention is as follows. In other words, it is a filtration device for a washing machine, and is located on the inner peripheral wall of the washing tank, and defines a water guide path that guides water in the washing tank and discharges it to the outside of the washing tank, and a circulation path for water in the washing tank. a mounting base having a filtration path; and a filter located on the mounting base and communicating with the filtration path. The water introduction path and the filtration path are installed apart from each other.

Further, the water introduction path has an upper part as a water inlet end and a lower part as a water discharge end communicating with the first drain port of the peripheral wall and/or bottom wall of the cleaning tank, and guides and discharges water from the top to the bottom. The filtration path has a lower portion that communicates with the inside of the cleaning tank and serves as a water inlet end that guides water from the bottom to the top, and an upper portion that communicates with the filter.

In a further embodiment, the water guiding path and the filtering path are distributed in the radial direction of the cleaning tank on the mounting base, and the water guiding path is provided between the filtering path and the inner circumferential wall of the cleaning tank.

Furthermore, the water guide path is defined by the mounting base alone, or by the mounting base together with the inner peripheral wall of the cleaning tank.

Alternatively, as an alternative to the above, the water guiding path and the filtration path may be distributed in the circumferential direction of the cleaning tank on the mounting base, and a water channel at the same height as the filtration path in the water guiding path is located on one side of the filtration path. are doing.

Alternatively, the water guide path and the filtration path are distributed in the circumferential direction of the cleaning tank on the mounting base, and the water guide path has two branches located on both sides of the filtration path at the same height as the filtration path. has a road.

Alternatively, the water introduction path and the filtration path are distributed in the circumferential direction of the cleaning tank, and the filtration path has two branch paths located on both sides of the water introduction path.

The washing machine described in the present invention includes a housing and a washing tank rotatably installed in the housing. The washing tank is arranged to form a tank structure that stores water during washing, and the above-mentioned filtration device is attached to the inner peripheral wall of the washing tank.

Furthermore, at least one first drain port is provided at a lower portion of the peripheral wall of the cleaning tank. Moreover, the number of the mounting bases is at least one. A lower portion of each mounting base covers at least one first drain port, and a water channel communicates with the first drain port.

Preferably, the first drain ports are plural and are installed at intervals in the circumferential direction of the cleaning tank. Moreover, the mounting bases are plural and are installed at intervals in the circumferential direction of the cleaning tank. Each mounting base covers at least one corresponding first drain port.

The washing machine further includes a water receiving device installed in the housing to collect water discharged from the washing tub. The water receiving device includes a water collection chamber and at least one second drainage port for draining the water to the outside.

Furthermore, a guide portion is provided at the upper part of the inner circumferential wall of the cleaning tank to guide the water into the water introduction path.

Preferably, the guide section includes a guide unit that guides the wash water that has risen to a height at which the water inlet of the water guide path is located along the circumferential direction to the water inlet.

Furthermore, at least a portion of the guide unit and the water inlet are located on the same circumference on the inner peripheral wall of the cleaning tank. The guide unit in this part extends from the water inlet along the circumferential direction of the cleaning tank during spin-drying rotation, and the distance from the center of the cleaning tank gradually decreases.

Furthermore, the guide unit includes a curved structure that is provided along the circumferential direction on the inner circumferential wall of the cleaning tank and whose size gradually changes from the center of the cleaning tank. In the curved structure, the distance between one end adjacent to the water inlet and the center of the cleaning tank is maximum. Moreover, it extends along the direction in which the cleaning tank is rotated for dewatering, and the distance between the curved surface and the center of the cleaning tank becomes smaller as the distance from the water inlet increases.

Preferably, it further includes a sloped structure that is provided from bottom to top along the axial direction of the cleaning tank and whose size from the center of the cleaning tank gradually increases.

Furthermore, the guide unit extends from the water inlet side of the water inlet along the circumferential direction of the cleaning tank during dewatering rotation, and extends to the other mounting base, or extends from the water inlet side to the other mounting base, or extends from the water inlet side to the other mounting base, or the guide unit extends from the water inlet side of the water inlet along the circumferential direction when the cleaning tank is rotated for dewatering. Stretch it almost all the way around until it reaches the side wall.

Furthermore, the guide unit is an auxiliary structure attached to the inner peripheral wall of the washing tank, or a circumferential stamping structure on the peripheral wall of the washing tank where at least the water inlet of the water guide path is located.

By using the above technical solution, the present invention has the following beneficial effects compared with the prior art.

Since the washing tank of the washing machine according to the present invention can be used to store water during the washing process, the washing tank has a "cleaning tank without holes" structure. In addition, the design of the outer tank is omitted, and a water receiving device is used instead of the outer tank to receive water and drain water. As a result, the present invention has the following technical effects.

1. Since the capacity of the washing tank can be increased without changing the volume of the casing of the washing machine, the effect of increasing the capacity of the washing machine can be realized.

2. During the washing process, water exists only in the washing tank, so water exists between the inner and outer tubs like in a conventional washing machine, causing dirt and grime to build up on the inner wall of the outer tub and the outer wall of the washing tank. The problem of "sticking" is avoided. Therefore, it has an even better cleaning effect.

3. By omitting the outer tank and using the cleaning tank as a water storage tank, there is no water between the inner tank and the outer tank during the cleaning process, which reduces the amount of cleaning water and saves on cleaning water. .

4. By utilizing the water guide path that runs from top to bottom inside the filtration device and draining water from the first drain outlet at the lower position of the peripheral wall of the cleaning tank, it is possible to avoid the situation in which the water guide structure attached to the upper part of the outer peripheral wall of the cleaning tank occupies the space between the cleaning tank and the housing, as in the conventional technology. In addition, it is also possible to avoid the situation in which a separate water guide structure is attached to the inner peripheral wall of the cleaning tank, which occupies the internal space of the cleaning tank. This provides a true capacity increase effect.

5. By providing a guide section and guiding the wash water into the water guide path and discharging it during dehydration and drainage, rapid dewatering can be achieved.

6. The guide unit is designed as a radius-changing structure in which the radius of the inner wall of the washing tank from the center of the washing tank gradually decreases along the direction of rotation during spin-drying. The radius-changing part guides the washing water to the point where the radius increases, and then discharges it from the water guide path, achieving rapid drainage.

Hereinafter, specific embodiments of the present invention will be described in more detail in combination with the drawings.

The drawings are part of the invention and are used for a further understanding of the invention. Moreover, the schematic embodiments of the present invention and their descriptions are used for the interpretation of the present invention, but are not intended to unduly limit the present invention. It goes without saying that the drawings described below are only part of the embodiments, and those skilled in the art can derive further drawings from these drawings without any creative effort.

FIG. 1 is a diagram showing the structure of a filtration device for a washing machine according to the present invention. FIG. 2 is a diagram showing a filtration device for a washing machine according to the present invention. FIG. 3 is a diagram showing the embodiment in the AA direction in FIG. 2. FIG. 4 is a diagram showing another embodiment in the AA direction in FIG. 2. FIG. 5 is a diagram showing another embodiment in the AA direction in FIG. 2. FIG. 6 is a diagram showing another embodiment in the AA direction in FIG. 2. FIG. 7 is a diagram showing the structure of the washing machine of the present invention. FIG. 8 is a diagram showing a water guide path of the filtration device of the washing machine according to the present invention. FIG. 9 is a plan view of the washing machine of the present invention. FIG. 10 is a diagram showing a guide section of a washing machine according to the present invention. FIG. 11 is an enlarged view of portion B in FIG. 10.

It should be noted that these drawings and written descriptions are not intended to limit the scope of the inventive concept in any way, but rather to explain the inventive concept to those skilled in the art with reference to specific embodiments. It is something.

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments will be clearly and concisely described by combining the drawings of the embodiments of the present invention. In addition, the following examples are for explaining the present invention, and are not intended to limit the scope of the present invention.

In the description of the present invention, terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "inside", "outside", etc. should be explained. The direction or positional relationship indicated by is a direction or positional relationship based on the illustration, and is only for the convenience of describing the present invention and for simplifying the description. There is no representation or implication that the invention must be constructed or operated in any particular manner. Therefore, it should not be construed as limiting the invention.

In describing the present invention, it should be noted that the terms "attached," "coupled," and "connected" should be interpreted in a broad sense unless otherwise clearly defined and limited. For example, it may be a fixed connection, a removable connection, or an integral connection. Further, it may be a direct connection or an indirect connection via an intermediate medium. Those skilled in the art can interpret the specific meanings of the above terms in the present invention depending on the specific situation.

As shown in FIGS. 1 to 11, a washing machine filtration device 1 described in the present invention includes a mounting base 3 mounted on an inner peripheral wall of a washing tank 2. As shown in FIGS. The mounting base 3 includes a water guide path 4 that guides water in the cleaning tank 2 and discharges it to the outside of the cleaning tank 2, and a filtration path 5 that defines a circulation path for the water in the cleaning tank 2. A filter 6 is provided on the mounting base 3 and communicates with the filtration path 5. The water introduction path 4 and the filtration path 5 are installed apart from each other. Further, the cleaning tank to which the filtration device is attached has a structure of an "inner tank without holes", and the cleaning tank has a water storage function during cleaning.

The water introduction path 4 in the present invention has a water inlet end 41 at the top and a water discharge end 42 at the bottom that communicates with the first drain port 21 on the peripheral wall and/or bottom wall of the cleaning tank 2, and flows water from top to bottom. guide and discharge (see Figure 8). Further, the filtration path 5 has a lower portion communicating with the inside of the cleaning tank 2 and serves as a water inlet end 51 that guides water from the bottom to the top, and an upper portion communicating with the filter 6. The two channels are spaced apart from each other (see Figure 1), each forming an independent water supply and filtration channel. Filtration of lint is achieved by the water in the washing tank passing through the filter while repeatedly circulating along the filtration waterway.

As shown in FIG. 3, the water introduction path 4 and the filtration path 5 described in this embodiment are distributed in the radial direction of the cleaning tank 2 on the mounting base 3. The water guide path 4 is provided between the filtration path 5 and the inner circumferential wall of the cleaning tank 2 . That is, the filtration path 5 is provided at a position closer to the center of the cleaning tank 2 on the mounting base, and the water guide path 4 is provided at a position closer to the inner circumferential wall of the cleaning tank 2.

The water guide path 4 described in this embodiment can be defined by the mounting base 3 alone. That is, a path is provided inside the mounting base 3 to guide water vertically. Alternatively, the water guide path 4 is defined by matching the mounting base 3 and the inner circumferential wall of the cleaning tank 2. That is, a path for guiding water vertically is formed by a gap between the side wall of the mounting base near the inner peripheral wall of the cleaning tank and the inner peripheral wall of the cleaning tank.

As shown in FIGS. 4 to 6, the water introduction path 4 and the filtration path 5 described in this embodiment are distributed in the circumferential direction of the cleaning tank 2 on the mounting base. Since the water guide path 4 guides water from top to bottom, and the filtration path 5 filters water from bottom to top, the water guide path 4 necessarily has a water channel at the same height as the filtration path 5. Specifically, it may be installed as follows.

Plan 1: The water guide path 4 has a water channel at the same height as the filtration path 5, and is located on one side of the filtration path 5 (see FIG. 4).

Method 2: The water conduction path 4 has two branch paths 43, 44 located on either side of the filtration path 5 at the same height as the filtration path 5 (see Figure 5).

Alternatively, as a further structure, as shown in FIG. 6, the water introduction path 4 and the filtration path 5 are distributed in the circumferential direction of the cleaning tank, and the filtration path 5 is two branch paths located on both sides of the water introduction path 4. It has 52 and 53.

As shown in FIGS. 7 and 8, the washing machine of the present invention includes a casing 7 and a washing tank 2 rotatably installed in the casing 7. The cleaning tank 2 is arranged to form a tank structure that stores water during cleaning. The filtration device 1 of the above embodiment is attached to the inner peripheral wall of the cleaning tank 2. The washing machine further includes a water receiving device 8 installed in the housing 7 to collect water discharged from the washing tank. The water receiving device 8 is installed at the lower part of the cleaning tank 2 and includes a water collection chamber 81 and at least one second drain port 82 for draining water to the outside. The water collection chamber 81 can collect the cleaning water discharged from the cleaning tank 2. Further, the peripheral wall 83 defining the water collection chamber surrounds at least the lower peripheral wall of the cleaning tank 2 . In order to enhance the capacity increase effect, the lower the height of the upward extension of the peripheral wall 83 that defines the water collection chamber, the better, while satisfying the condition that water does not scatter or overflow during drainage. . This is because the center of the bottom of the cleaning tank is used as the fulcrum when rotating, so when the rotation of the cleaning tank loses its balance, the upper peripheral wall of the water receiving device may collide with the casing or the cleaning tank and be damaged. In order to avoid this situation, the peripheral wall of the water receiving device, the casing, and the cleaning tank need to be designed to have a certain safe distance, but this is because such a design does not have the effect of increasing capacity.

Furthermore, at least one first drain outlet 21 is provided in the lower part of the peripheral wall of the cleaning tank 2. Also, there is at least one mounting base 3. The lower part of each mounting base 3 covers at least one first drain outlet 21, and the water guide path 4 communicates with the first drain outlet 21. Preferably, there are multiple first drain outlets 21, and they are installed at intervals in the circumferential direction of the cleaning tank. Also, there are multiple mounting bases 3, and they are installed at intervals in the circumferential direction of the cleaning tank 4. Each mounting base 3 covers at least one corresponding first drain outlet 21.

Conventional holeless inner tanks are designed to have equal circumferential diameters. Therefore, during the dehydration stage, water is uniformly distributed on the tank wall with approximately equal thickness due to the action of high-speed centrifugal force, which is disadvantageous for quickly draining the water in the inner tank.

As shown in FIG. 9, the upper part of the inner wall of the cleaning tank 2 described in this embodiment is provided with a guide portion 9 that guides water to enter the water guide path 4. The guide portion 9 includes a guide unit 91 that guides cleaning water that has risen to the height where the water inlet 45 of the water guide path 4 is located, along the circumferential direction to the water inlet 45. By providing the guide portion 9 and guiding the cleaning water with the guide portion 9 to quickly enter the water guide path 4 from the water inlet 45 at the top of the mounting base, the cleaning water in the cleaning tank can be quickly discharged during spin-drying. This improves the spin-drying efficiency and effect, and shortens the spin-drying time.

As shown in FIGS. 9 to 11, at least a portion of the guide unit 91 and the water inlet described in this embodiment are located on the same circumference on the inner peripheral wall of the cleaning tank. The guide unit 91 in this part extends from the water inlet 45 along the circumferential direction of the cleaning tank 2 during spin-drying rotation, and the distance from the center of the cleaning tank 2 gradually decreases.

Furthermore, the guide unit 91 includes a curved structure that is provided along the circumferential direction on the inner peripheral wall of the cleaning tank 2 and whose size gradually changes from the center of the cleaning tank 2. In the curved structure, the distance D between one end adjacent to the water inlet 45 and the center of the cleaning tank 2 is maximum. Further, it extends along the direction in which the cleaning tank 2 is rotated for dewatering, and the distance d between the curved surface and the center of the cleaning tank 45 becomes smaller as the distance from the water inlet 45 increases.

Preferably, the cleaning tank 2 further includes an inclined structure that is provided from bottom to top along the axial direction of the cleaning tank 2 and gradually increases in size from the center of the cleaning tank 2. The cleaning water in the cleaning tank 2 first rises along the inner circumferential wall of the cleaning tank 2 to a height where the water inlet 45 is located due to the action of centrifugal force. Then, along the circumferential direction, the guide unit 91 quickly moves toward the side with the larger size from the center of the cleaning tank to the mounting base 3, enters the water introduction path 4 through the water inlet 45, and is discharged. . More preferably, an annular water stop portion (not shown) is provided at the upper edge of the water inlet 45. This prevents the cleaning water that has risen along the inner circumferential wall of the cleaning tank to the water inlet from rising any further.

When at least two mounting bases 3 are provided in the cleaning tank 2, the guide unit 91 extends from the water inlet side of the water inlet 45 along the circumferential direction during the dehydration rotation of the cleaning tank, and extends to the other mounting base.

When one mounting base is provided in the cleaning tank, the guide unit extends from the water inlet side of the water inlet along the circumferential direction of the cleaning tank during dewatering rotation, and extends from the water inlet side of the mounting base on which the water inlet is arranged. Stretch almost all the way around until you reach the opposite side wall.

The water inlet 45 is provided on a radial side wall of the mounting base 3 that corresponds to the rotational direction of the cleaning tank 2 during dewatering. The opening direction of the water inlet 45 faces the direction of rotation of the cleaning tank 2 during dewatering. Further, the direction of the water flow that enters the water guide path 4 of the mounting base 3 along the circumferential direction of the cleaning tank 2 is opposite to the direction of rotation of the cleaning tank 2 during dewatering.

The guide unit 91 described in the present invention is an auxiliary structure attached to the inner peripheral wall of the cleaning tank. The auxiliary structure has the above-mentioned gradually changing curved structure on the inner wall facing the center of the cleaning tank. Alternatively, the guide unit 91 is a push-type structure on the circumference of the peripheral wall of the cleaning tank, in which at least the water inlet of the water introduction path is arranged. At least the inner wall of the cleaning tank on the circumference where the water inlet is arranged has a structure in which the size from the center of the cleaning tank gradually changes as described above.

The above are merely preferred embodiments of the present invention and are not intended to limit the invention to any form. Although the present invention has been disclosed above in terms of preferred embodiments, it is not intended to limit the invention. Within the scope of the technical solution of the present invention, any slight modification or supplementation that can be implemented by a person skilled in the art using the technical content presented above shall be considered as an equivalent embodiment that is equivalently modified, and any such modifications or supplements may be considered as equivalent embodiments of the present invention. This does not deviate from the content of the technical plan. In addition, any simple modifications, equivalent variations, and supplements made to the above embodiments based on the technical essence of the present invention are all considered to be within the scope of the present invention.

Claims (10)

A washing machine including a casing and a washing tank rotatably installed in the casing,
The cleaning tank is arranged to form a tank structure that stores water during cleaning, and at least two filtration devices are attached to the inner peripheral wall of the cleaning tank,
The filtration device includes:
a mounting base located on an inner circumferential wall of a cleaning tank and comprising a water guide path for guiding water in the cleaning tank and discharging it to the outside of the cleaning tank; and a filtration path for defining a circulation path for water in the cleaning tank; ,
a filter disposed in the filtration path to allow water in the filtration path to circulate through the filter and into the wash tank;
The water introduction path and the filtration path are installed apart from each other, and the upper part of the water introduction path is a water inlet end arranged on the side wall of the mounting base, and the lower part is a water outlet end, and the opening direction of the water inlet is directed toward the washing tank. It faces the direction of rotation during dehydration.
A guide portion is provided at the upper part of the inner circumferential wall of the cleaning tank, and the guide portion guides water to enter the water introduction path.
The guide section includes a guide unit that guides the cleaning water that has risen to a height at which the water inlet of the water guide path is located along the circumferential direction to the water inlet,
The water guide path and the filtration path are distributed in the radial direction of the cleaning tank on the mounting base, and the water guide path is provided between the filtration path and an inner peripheral wall of the cleaning tank,
The guide unit includes a curved structure that is provided along the circumferential direction on the inner circumferential wall of the cleaning tank and whose size gradually changes from the center of the cleaning tank, and the curved structure has one end adjacent to the water inlet. The distance from the center of the cleaning tank is maximum, and the curved surface extends along the direction of rotation of the cleaning tank for dewatering, and the distance between the curved surface and the center of the cleaning tank decreases as the distance from the water inlet increases. and
The guide unit extends from the water inlet of the water guide path along the circumferential direction of the cleaning tank during dewatering rotation, and extends to the other mounting base,
The washing machine is characterized in that the guide unit further includes an inclined structure that is provided from bottom to top along the axial direction of the washing tank and gradually increases in size from the center of the washing tank. A washing machine including a housing and a washing tub rotatably installed in the housing,
The cleaning tank is arranged to form a tank structure that stores water during cleaning, and one filtration device is attached to the inner peripheral wall of the cleaning tank,
The filtration device includes:
a mounting base located on an inner circumferential wall of a cleaning tank and comprising a water guide path for guiding water in the cleaning tank and discharging it to the outside of the cleaning tank; and a filtration path for defining a circulation path for water in the cleaning tank; ,
a filter disposed in the filtration path to allow water in the filtration path to circulate through the filter and into the wash tank;
The water introduction path and the filtration path are installed apart from each other, and the upper part of the water introduction path is a water inlet end arranged on the side wall of the mounting base, and the lower part is a water outlet end, and the opening direction of the water inlet is directed toward the washing tank. It faces the direction of rotation during dehydration.
A guide portion is provided at the upper part of the inner circumferential wall of the cleaning tank, and the guide portion guides water to enter the water introduction path.
The guide section includes a guide unit that guides the cleaning water that has risen to a height at which the water inlet of the water guide path is located along the circumferential direction to the water inlet,
The water guide path and the filtration path are distributed in the radial direction of the cleaning tank on the mounting base, and the water guide path is provided between the filtration path and an inner peripheral wall of the cleaning tank,
The guide unit includes a curved structure that is provided along the circumferential direction on the inner circumferential wall of the cleaning tank and whose size gradually changes from the center of the cleaning tank, and the curved structure has one end adjacent to the water inlet. The distance from the center of the cleaning tank is maximum, and the curved surface extends along the direction of rotation of the cleaning tank for dewatering, and the distance between the curved surface and the center of the cleaning tank decreases as the distance from the water inlet increases. and
The guide unit extends from the water inlet of the water guide path along the circumferential direction of the cleaning tank during dewatering rotation, and extends until it reaches a side wall on the opposite side of the mounting base where the water inlet is arranged,
The washing machine, further characterized in that the guide unit includes an inclined structure provided from bottom to top along the axial direction of the washing tub, the size of which gradually increases from the center of the washing tub. The water introduction path has an upper part as a water inlet end and a lower part as a water discharge end that communicates with a first drain port on the peripheral wall and/or bottom wall of the cleaning tank, and guides and discharges water from the top to the bottom,
2. The filtering path according to claim 1, wherein a lower part of the filtration path communicates with the inside of the cleaning tank and serves as the water input end that guides water from the bottom to the top, and an upper part communicates with the filter. 2. The washing machine according to item 2 . The washing machine according to claim 1 or 2 , wherein the water guide path is defined by the mounting base alone or by a combination of the mounting base and an inner circumferential wall of the washing tank. The water introduction path and the filtration path are distributed in the circumferential direction of the cleaning tank on the mounting base, and a water channel in the water introduction path at the same height as the filtration path is located on one side of the filtration path. The washing machine according to claim 1 or 2 , characterized in that: The water introduction path and the filtration path are distributed in the circumferential direction of the cleaning tank on the mounting base, and the water introduction path is located at the same height as the filtration path and on both sides of the filtration path. The washing machine according to claim 1 or 2 , characterized in that it has two branch paths. Claim 1, wherein the water introduction path and the filtration path are distributed in the circumferential direction of the cleaning tank, and the filtration path has two branch paths located on both sides of the water introduction path. Or the washing machine described in 2 . At least one first drain port is provided in the lower part of the peripheral wall of the cleaning tank, the number of the mounting bases is one , and the lower part of each of the mounting bases covers the at least one first drain port, The washing machine according to claim 2 , wherein the water guide path communicates with the first drain port. A plurality of first drain ports are provided at a lower part of the peripheral wall of the cleaning tank, the plurality of first drain ports are installed at intervals in the circumferential direction of the cleaning tank, and the mounting base is plural, and installed at intervals in the circumferential direction of the cleaning tank, each of the mounting bases covering at least one corresponding first drain port, and the water guide path communicating with the first drain port. The washing machine according to claim 1 , characterized in that: Furthermore, the water receiving device includes a water receiving device installed in the housing to collect water discharged from the washing tank, and the water receiving device includes a water collecting chamber and at least one second drain port for discharging water to the outside. The washing machine according to claim 1 or 2 , characterized in that it includes: