Washing machine

Abstract

The application relates to the household electrical appliance technical field and discloses a washing machine which comprises a shell and a soft water module. A washing inner drum is arranged in the shell; the soft water module is arranged in the shell and located at one side of the washing inner drum; a water inlet end of the soft water module is communicated with an external water source through a water inlet pipe; and a water outlet end of the soft water module is communicated with the washing inner drum through a soft water outlet pipe; wherein water supply of the external water source can flow into the soft water module, and the softened water can flow into the washing inner drum for washing. In the application, the washing water flowing into the washing inner drum can be softened by the soft water module, the content of calcium and magnesium ions in the washing water is reduced, the damage of the washing water to close-fitting clothes such as underwear is reduced, and the dressing experience of a user is improved.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, and more particularly to a washing machine. Background Technology

[0002] Currently, with the improvement of living standards, users have higher requirements for the washing and care of clothing, especially intimate apparel such as underwear. Underwear washing machines were born to meet these needs; however, existing underwear washing machines on the market only achieve separate washing for inner and outer garments, failing to guarantee effective washing and sterilization of underwear, thus affecting the user experience.

[0003] A related technology includes a washing structure for an underwear washing machine, comprising an inner tub installed inside the washing machine casing. The inner tub includes a pulsator, a spin-drying tub, and a washing tub that houses the spin-drying tub. The inner tub is equipped with a heating element that directly contacts the water in the inner tub for heating. It also includes an electrolysis element disposed in the water inlet pipe of the inner tub. Clean water is purified and disinfected by the electrolysis element in the water inlet pipe, and then enters the inner tub for high-temperature disinfection by the heating element.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] Boiling and washing can improve the sterilization effect of underwear. However, underwear and other intimate clothing are made of materials such as pure cotton and silk. Due to the presence of calcium and magnesium ions in the washing water, the fabric of intimate clothing can be damaged to a certain extent, affecting the wearing experience.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a washing machine that uses a water softening module to soften the washing water flowing into the washing process, reducing the content of calcium and magnesium ions in the washing water, minimizing damage to underwear and other intimate clothing, and improving the user's wearing experience.

[0009] In some embodiments, the washing machine includes: a housing and a water softening module. The housing contains an inner washing drum; the water softening module is disposed inside the housing and located on one side of the inner washing drum. The water inlet of the water softening module is connected to an external water source via an inlet pipe, and the water outlet of the water softening module is connected to the inner washing drum via a water softening outlet pipe. The external water supply can flow into the water softening module, be softened, and then flow into the inner washing drum for washing purposes.

[0010] Optionally, the water softening module includes a water softening resin tank. The water softening resin tank has an inlet and a drain. The inlet is connected to an external water source via an inlet pipe, and the drain is connected to the inner washing drum via a water softening outlet pipe.

[0011] Optionally, the water softening module also includes a brine tank. The brine tank is located on one side of the water softening resin tank and has a brine inlet pipe that connects to the water softening resin tank. The water softening resin tank also has a drain outlet, through which the brine in the brine tank flows into the water softening resin tank to regenerate the resin, and the resulting wastewater is discharged through the drain outlet.

[0012] Optionally, the soft water resin tank includes: a tank body, a control valve, and a central pipe. The control valve is located at the top of the tank body, and the inlet, outlet, sewage outlet, and brine inlet pipe are all connected to the control valve; the central pipe is located inside the tank body, with its lower end at the bottom of the tank body and its upper end connected to the control valve.

[0013] Optionally, under the action of the control valve, the external water source flowing in through the inlet can flow from top to bottom into the tank to be softened. The softened water flows from the lower end of the central pipe into the central pipe, and then from bottom to top into the control valve, and finally flows into the soft water outlet pipe through the drain outlet.

[0014] Optionally, under the action of the control valve, the brine flowing in along the brine inlet pipe can flow from top to bottom into the tank to regenerate the resin. The generated wastewater flows from the lower end of the central pipe into the central pipe, and then from bottom to top into the control valve, and finally is discharged through the drain outlet.

[0015] Optionally, the washing machine also includes a protective shell. The protective shell is disposed inside the housing, and the water softening module is disposed within the protective shell.

[0016] Optionally, the upper end of the protective shell is provided with a cover plate, which is detachably placed on the upper end of the protective shell, and the upper side wall of the protective shell is provided with a maintenance opening corresponding to the position of the cover plate.

[0017] Optionally, the washing machine also includes a distributor. The distributor is located inside the housing and above the washing drum, and a soft water outlet pipe is connected to the washing drum through the distributor.

[0018] Optionally, the washing machine also includes a direct water supply pipe. One end of the direct water supply pipe is connected to an external water source, and the other end is connected to the washing drum.

[0019] The washing machine provided in this embodiment can achieve the following technical effects:

[0020] By incorporating a water softening module, the wash water from an external water source first flows into the softening module to be softened before flowing into the inner drum to wash underwear and other intimate apparel. This softening module reduces the calcium and magnesium ion content in the wash water, minimizing damage to underwear and other intimate apparel and improving the user's wearing experience.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a schematic diagram of the structure of a washing machine provided in an embodiment of this disclosure;

[0024] Figure 2 This is a schematic diagram showing the installation positions of the water softening module and the washing inner drum provided in the embodiments of this disclosure;

[0025] Figure 3 This is a schematic diagram of the structure of the water softening module provided in the embodiments of this disclosure;

[0026] Figure 4 This is a schematic diagram of the structure of the soft water resin tank provided in an embodiment of this disclosure;

[0027] Figure 5 This is a top view of the control valve provided in an embodiment of this disclosure;

[0028] Figure 6 This is a schematic diagram of the structure of another washing machine provided in an embodiment of this disclosure.

[0029] Figure label:

[0030] 100. Housing; 200. Soft water module; 210. Soft water outlet pipe; 220. Soft water resin tank; 221. Inlet; 222. Outlet; 223. Sewage outlet; 230. Salt tank; 231. Salt water inlet pipe; 232. Water pump; 240. Box body; 250. Control valve; 251. First flow path; 252. Second flow path; 253. Third flow path; 254. Fourth flow path; 260. Central pipe; 300. Washing inner drum; 400. Inlet pipe; 500. Protective shell; 600. Distributor; 700. Direct water supply pipe. Detailed Implementation

[0031] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0032] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0033] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0034] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0035] Unless otherwise stated, the term "multiple" means two or more.

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0037] Combination Figure 1-6As shown, in some embodiments, the washing machine includes a housing 100 and a water softening module 200. The housing 100 houses a washing drum 300. The water softening module 200 is disposed inside the housing 100 and located on one side of the washing drum 300. The water inlet of the water softening module 200 is connected to an external water source via an inlet pipe 400, and the water outlet of the water softening module 200 is connected to the washing drum 300 via a water softening outlet pipe 210. Water supplied from the external water source can flow into the water softening module 200, be softened, and then flow into the washing drum 300 for washing.

[0038] The washing machine provided in this embodiment of the present disclosure incorporates a water softening module 200. This allows wash water from an external water source to first flow into the water softening module 200 and be softened. The softened wash water then flows into the inner drum 300 to wash underwear and other intimate apparel. By softening the wash water flowing into the washing drum through the water softening module 200, the content of calcium and magnesium ions in the wash water is reduced, minimizing damage to underwear and other intimate apparel and improving the user's wearing experience.

[0039] Optionally, the housing 100 has a rectangular structure, and the washing drum 300 is rotatably disposed inside the housing 100. The front side wall of the housing 100 has a loading / unloading port, and the front end of the washing drum 300 communicates with the loading / unloading port. A sealing cover is provided at the loading / unloading port. This rectangular structure of the housing 100 facilitates the placement of the washing machine and increases its stability. The user places underwear and other intimate clothing into the washing drum 300 for washing through the loading / unloading port, and then seals the loading / unloading port with the sealing cover to improve the sealing performance of the washing drum 300. After washing, the sealing cover is opened to remove the clothing from the washing drum 300 through the loading / unloading port.

[0040] Optionally, the sealing cap is made of a transparent material. This allows the sealing cap and the loading / unloading port to form a viewing window, enabling the user to observe the washing process of the clothes in the inner drum 300 through the sealing cap.

[0041] Optionally, the external water source is a municipal water supply pipeline, and the inlet of the water softening module 200 is connected to the municipal water supply pipeline through an inlet pipe 400. In this way, supplying water to the water softening module 200 through the municipal water supply pipeline can ensure the stability of the water supply and provide a large water volume.

[0042] Optionally, a counterweight base is provided at the bottom of the housing 100. This counterweight base improves the stability of the washing machine and reduces shaking during operation.

[0043] Optionally, the water softening module 200 is located at the rear of the washing drum 300. This makes better use of the space inside the housing 100, and the placement of the water softening module 200 shifts the overall center of gravity of the housing 100 inward, further improving the stability of the washing machine.

[0044] Understandably, the side wall of the housing 100 with the loading and unloading port is the front side wall, and the side wall of the housing 100 opposite to the front side wall is the rear side wall. The direction of the washing inner drum 300 towards the front side wall is its front side, and the direction of the washing inner drum 300 towards the rear side wall is its rear side.

[0045] Optionally, the washing machine also includes a distributor 600. The distributor 600 is disposed inside the housing 100 and above the washing drum 300, and the soft water outlet pipe 210 is connected to the washing drum 300 through the distributor 600. In this way, the distributor 600 can rationally distribute the incoming soft water, ensuring that the amount of soft water flowing into the washing drum 300 matches the current washing needs, thus reducing soft water waste.

[0046] Optionally, the washing machine also includes a protective shell 500. The protective shell 500 is disposed inside the housing 100, and the water softening module 200 is disposed within the protective shell 500. In this way, the protective shell 500 can provide protection for the water softening module 200 and reduce the risk of damage to the water softening module 200.

[0047] Optionally, the protective shell 500 is located at the rear of the washing inner drum 300. In this way, since the protective shell 500 is used to house the soft water module 200, placing the protective shell 500 at the rear of the washing inner drum 300 makes reasonable use of the space inside the shell 100, while also shifting the overall center of gravity of the shell 100 inward, thus improving stability.

[0048] Specifically, the protective shell 500 is located between the rear end of the washing inner drum 300 and the rear side wall of the shell 100.

[0049] Optionally, the upper end of the housing 500 is provided with a cover plate, which is detachably installed on the upper end of the housing 500. A maintenance port is provided on the upper side wall of the housing 500 corresponding to the position of the cover plate. In this way, when maintenance and repair of the water softener module 200 are required, the cover plate can be opened to operate through the maintenance port. When maintenance is not required, the maintenance port can be sealed by the cover plate, reducing the risk of contamination of the water softener module 200.

[0050] Optionally, the water softening module 200 includes a water softening resin tank 220. The water softening resin tank 220 has an inlet 221 and a drain 222. The inlet 221 is connected to an external water source via an inlet pipe 400, and the drain 222 is connected to the washing drum 300 via a softened water outlet pipe 210. In this way, tap water from the external water source flows into the inlet 221 of the water softening resin tank 220 through the inlet pipe 400, and then into the water softening resin tank 220. The water softening resin tank 220 stores ion exchange resin. When tap water passes through the resin in the water softening resin tank 220, calcium and magnesium ions in the tap water are adsorbed by the resin, thereby reducing the concentration of calcium and magnesium ions in the water and generating soft water. The soft water flows into the softened water outlet pipe 210 through the drain 222, and then into the washing drum 300 for washing, reducing damage to underwear and other intimate clothing and improving the user's wearing experience.

[0051] Optionally, the water softening module 200 also includes a brine tank 230. The brine tank 230 is located on one side of the water softening resin tank 220 and has a brine inlet pipe 231 connected to the water softening resin tank 220. The water softening resin tank 220 also has a drain outlet 223. The brine in the brine tank 230 flows into the water softening resin tank 220 through the brine inlet pipe 231 to regenerate the resin, and the resulting wastewater is discharged through the drain outlet 223. In this way, the brine in the brine tank 230 can flow into the water softening resin tank 220 through the brine inlet pipe 231. The brine in the water softening resin tank 220 reacts with the resin, and the resin that has adsorbed calcium and magnesium ions is replaced and regenerated by concentrated brine. The resulting wastewater is discharged through the drain outlet 223. The regenerated resin can continue to adsorb calcium and magnesium ions from the incoming tap water to soften the tap water and produce soft water, thus reducing the cost of soft water.

[0052] Optionally, the brine inlet pipe 231 extends from top to bottom into the brine tank 230, with its lower end extending to the bottom of the brine tank 230. This allows the brine inlet pipe 231 to draw brine from the bottom of the brine tank 230, enabling more brine in the brine tank 230 to be drawn into the soft water resin tank 220.

[0053] Optionally, the salt tank 230 is also located inside the protective shell 500, and is arranged side by side with the soft water resin tank 220. In this way, the salt tank 230 and the soft water resin tank 220 are concentrated inside the protective shell 500, which protects the salt tank 230 and the soft water resin tank 220. At the same time, the soft water resin tank 220 and the salt tank 230 work together to form a counterweight, which shifts the overall center of gravity of the shell 100 inward, thereby improving stability.

[0054] Optionally, the height of the salt tank 230 is the same as the height of the soft water resin tank 220. This allows the brine in the salt tank 230 to flow evenly into the soft water resin tank 220, and facilitates the reasonable arrangement of the salt tank 230 and the soft water resin tank 220 inside the protective shell 500.

[0055] For example, external tap water flows into the water softening resin tank 220. The resin in the water softening resin tank 220 can adsorb calcium and magnesium ions in the tap water to soften the water. The softened water flows into the washing inner drum 300 for washing. After the water softening process is completed, the brine in the salt tank 230 can flow into the water softening resin tank 220. The brine can replace the calcium and magnesium ions in the resin that has adsorbed a large number of calcium and magnesium ions. The brine is discharged through the drain outlet 223 with the brine to realize resin regeneration. This process requires adding salt to the salt tank 230 regularly to ensure the resin regeneration process.

[0056] Optionally, the soft water resin tank 220 includes: a tank body 240, a control valve 250, and a central pipe 260. The control valve 250 is located at the upper end of the tank body 240, and the inlet 221, outlet 222, drain 223, and brine inlet pipe 231 are all connected to the control valve 250. The central pipe 260 is located inside the tank body 240, with its lower end at the bottom of the tank body 240 and its upper end connected to the control valve 250. Thus, the soft water resin tank 220 is divided into the tank body 240, the control valve 250, and the central pipe 260. The tank body 240 is used to hold the soft water resin, the control valve 250 is used to control the opening and closing of the inlet 221, outlet 222, drain 223, and brine inlet pipe 231, and the central pipe 260 restricts the flow path of the incoming tap water, allowing the tap water to contact the resin over a larger area, thereby improving the softening effect.

[0057] Optionally, the cross-section of the tank 240 is centered, and the cross-section of the central pipe 260 is located at the center of the cross-section of the tank 240. In this way, with the central pipe 260 positioned at the center of the tank 240, when tap water flows into the tank 240 through the inlet 221, it can make more thorough contact with the resin inside the tank 240, thereby improving the water softening effect.

[0058] Optionally, under the action of the control valve 250, external water flowing in through the inlet 221 can flow from top to bottom into the tank 240 and be softened. The softened water flows from the lower end of the central pipe 260 into the central pipe 260, then flows from bottom to top into the control valve 250, and finally flows through the drain outlet 222 into the soft water outlet pipe 210. In this way, the tap water flowing in from the upper end of the tank 240 diffuses downwards along the outer periphery of the central pipe 260 inside the tank 240, gradually contacting the resin inside the tank 240. The calcium and magnesium ions in the tap water are adsorbed by the resin, and the tap water is softened to form soft water. The soft water flows from the lower end of the central pipe 260, flows from bottom to top into the control valve 250, and then flows through the drain outlet 222 into the soft water outlet pipe 210 for washing. Tap water flows into the tank 240 from top to bottom and then flows out from bottom to top along the bottom of the tank 240, which allows the tap water to fully contact the resin and improve the water softening effect.

[0059] Optionally, under the action of control valve 250, the brine flowing in through brine inlet pipe 231 can flow from top to bottom into tank 240 to regenerate the resin. The generated wastewater flows from the lower end of central pipe 260 into central pipe 260, then from bottom to top into control valve 250, and finally is discharged through drain port 223. In this way, the brine flowing in from the upper end of tank 240 diffuses downwards along the outer periphery of central pipe 260 inside tank 240, gradually reacting with the resin in tank 240 that has adsorbed calcium and magnesium ions, displacing the adsorbed calcium and magnesium ions from the resin. As the brine flows downwards, the resin is regenerated. The brine that has replaced the calcium and magnesium ions flows from the bottom of tank 240 into central pipe 260, and then is discharged through drain port 223. The brine flowing from top to bottom into tank 240 and then flowing from bottom to top out of tank 240 allows for sufficient contact between the brine and the resin that has adsorbed calcium and magnesium ions, more fully displacing the adsorbed calcium and magnesium ions from the resin, thus improving the resin regeneration effect.

[0060] Optionally, the control valve 250 has a disc-shaped plate structure. The control valve 250 is installed on the upper end of the housing 240. The control valve 250 has a first flow path 251, a second flow path 252, a third flow path 253 and a fourth flow path 254 inside. The first flow path 251 connects the water inlet 221 and the inside of the housing 240. The second flow path 252 connects the drain outlet 222 and the upper end of the central pipe 260. The third flow path 253 connects the brine inlet pipe 231 and the inside of the housing 240. The fourth flow path 254 connects the sewage outlet 223 and the upper end of the central pipe 260. The first flow path 251 is equipped with a first valve, the second flow path 252 is equipped with a second valve, the third flow path 253 is equipped with a third valve, and the fourth flow path 254 is equipped with a fourth valve. In this way, by controlling the opening and closing of the first valve, second valve, third valve and fourth valve on the first flow path 251, the second flow path 252, the third flow path 253 and the fourth flow path 254, the opening and closing of different flow paths can be realized, and the soft water and resin regeneration process can be controlled more stably.

[0061] For example, during the water softening process, the first and second valves are opened, the third and fourth valves are closed, the first flow path 251 and the second flow path 252 are in a passable state, and the third flow path 253 and the fourth flow path 254 are in a closed state. Tap water flows into the first flow path 251 through the inlet 221, and then flows into the tank 240 through the first flow path 251. The softened water at the bottom of the tank 240 flows into the second flow path 252 from the lower port of the central pipe 260, flows into the second flow path 252 along the upper end of the central pipe 260, and then is discharged through the drain outlet 222.

[0062] In another example, during the regeneration process, the first and second valves are closed, while the third and fourth valves are open. The first flow path 251 and the second flow path 252 are closed, while the third flow path 253 and the fourth flow path 254 are open. The brine in the brine tank 230 flows into the third flow path 253 through the brine inlet pipe 231, and then flows into the tank body 240 along the third flow path 253. The wastewater generated during regeneration flows in from the lower port of the central pipe 260, flows into the fourth flow path 254 along the upper end of the central pipe 260, and then is discharged through the drain outlet 223.

[0063] Optionally, a water pump 232 is connected to the brine inlet pipe 231. The water pump 232 provides power to draw brine from the brine tank 230 into the tank body 240. Since the tank body 240 is sealed, the inflow of brine increases the pressure within it. Consequently, the resulting wastewater flows into the lower end of the central pipe 260 under pressure and is then discharged through the drain outlet 223. Similarly, tap water itself has pressure. During the softening process, the tap water flows into the tank body 240 under its own pressure. This increases the pressure within the tank body 240, causing the resulting softened water to flow into the lower end of the central pipe 260 under pressure and then out through the drain outlet 222.

[0064] Combination Figure 6 As shown, in one embodiment, the washing machine further includes a direct water supply pipe 700. One end of the direct water supply pipe 700 is connected to an external water source, and the other end is connected to the washing drum 300.

[0065] In this embodiment, an external water source can directly supply tap water to the washing drum 300 via a direct water supply pipe 700 for washing purposes. When washing silk or cotton underwear is not required, tap water can be supplied via the direct water supply pipe 700 for washing. When washing silk or cotton underwear is required, soft water is supplied via the soft water module 200 for washing, reducing washing costs and minimizing the consumption of the soft water module 200.

[0066] Optionally, valves are connected to both the direct water supply pipe 700 and the inlet water pipe 400. This allows the user to control the opening and closing of valve 250 according to washing needs. When washing silk or cotton underwear, the user opens the valve on the inlet water pipe 400 and closes the valve on the direct water supply pipe 700. When not washing silk or cotton underwear, the user opens the valve on the direct water supply pipe 700 and closes the valve on the inlet water pipe 400.

[0067] Optionally, the direct water supply pipe 700 is connected to the washing drum 300 via a distributor 600. In this way, when the direct water supply pipe 700 is selected to provide washing water, the distributor 600 can reasonably distribute the incoming tap water so that the amount of tap water flowing into the washing drum 300 matches the current washing needs, reducing tap water waste.

[0068] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A washing machine, characterized in that, include: The housing (100) has an inner washing drum (300) inside; A soft water module (200) is installed inside the housing (100) and located on one side of the washing drum (300). The water inlet of the soft water module (200) is connected to an external water source through a water inlet pipe (400), and the water outlet of the soft water module (200) is connected to the washing drum (300) through a soft water outlet pipe (210). The water supplied from the external water source can flow into the water softening module (200), be softened and then flow into the washing inner drum (300) for washing.

2. The washing machine according to claim 1, characterized in that, Soft water module (200), including: The soft water resin tank (220) has an inlet (221) and a drain (222). The inlet (221) is connected to an external water source through an inlet pipe (400), and the drain (222) is connected to the washing inner drum (300) through a soft water outlet pipe (210).

3. The washing machine according to claim 2, characterized in that, The water softening module (200) also includes: A salt tank (230) is located on one side of a soft water resin tank (220). The salt tank (230) has a brine inlet pipe (231) that is connected to the soft water resin tank (220). The soft water resin tank (220) also has a drain outlet (223). The brine in the salt tank (230) can flow into the soft water resin tank (220) through the brine inlet pipe (231) to regenerate the resin, and the wastewater generated is discharged through the drain outlet (223).

4. The washing machine according to claim 3, characterized in that, Soft water resin tank (220), including: Box (240); The control valve (250) is located at the upper end of the housing (240), and the water inlet (221), drain outlet (222), sewage outlet (223) and brine inlet pipe (231) are all connected to the control valve (250); The central tube (260) is located inside the housing (240). The lower end of the central tube (260) is located at the bottom of the housing (240), and the upper end of the central tube (260) is connected to the control valve (250).

5. The washing machine according to claim 4, characterized in that, Under the action of the control valve (250), the external water source flowing in through the inlet (221) can flow from top to bottom into the tank (240) to be softened. The softened water flows from the lower end of the central pipe (260) into the central pipe (260), and then flows from bottom to top into the control valve (250), and finally flows into the soft water outlet pipe (210) through the drain (222).

6. The washing machine according to claim 4, characterized in that, Under the action of the control valve (250), the brine flowing in through the brine inlet pipe (231) can flow from top to bottom into the tank (240) to regenerate the resin. The wastewater generated flows from the lower end of the central pipe (260) into the central pipe (260), and then flows from bottom to top into the control valve (250), and finally is discharged through the drain port (223).

7. The washing machine according to claim 1, characterized in that, Also includes: A protective shell (500) is disposed inside the housing (100), and a soft water module (200) is disposed in the protective shell (500).

8. The washing machine according to claim 7, characterized in that, The upper end of the protective shell (500) is provided with a cover plate, which is detachably placed on the upper end of the protective shell (500). The upper side wall of the protective shell (500) is provided with a maintenance port corresponding to the position of the cover plate.

9. The washing machine according to any one of claims 1 to 8, characterized in that, Also includes: A distributor (600) is located inside the housing (100) and above the washing tub (300). The soft water outlet pipe (210) is connected to the washing tub (300) through the distributor (600).

10. The washing machine according to any one of claims 1 to 8, characterized in that, Also includes: The direct water supply pipe (700) is connected to an external water source at one end and to the inner drum of the washing machine (300) at the other end.

Images