A mother-and-child washing machine

Abstract

The present invention provides a mother-and-child washing machine, a mother-and-child washing machine, the mother-and-child washing machine comprises a washing unit, a drying unit and a control unit, the washing unit is configured to wash clothes, the drying unit is configured to dry clothes, the control unit can control the washing unit to wash clothes, the control unit can also control the drying unit to dry clothes, the washing unit and the drying unit share a drainage system, the mother-and-child washing machine described in the present invention has the advantages of simple structure, convenient installation, good clothing washing effect, high washing efficiency, and high water resource and heat utilization rate.

Description

Technical Field

[0001] The present invention relates to the technical field of washing machines, and in particular to a mother-and-child washing machine. Background Art

[0002] At present, mother-and-child washing machines with functions such as washing and drying are gradually being used by many users. A mother-and-child washing machine is generally considered to be a washing machine with two or more spaces for accommodating clothes, at least one of which is used to wash clothes, and the remaining space can be used to wash clothes, or other operations other than washing can be performed on clothes, such as spinning, drying, and disinfecting clothes. The most commonly used is a mother-and-child washing machine with washing and drying functions. This mother-and-child washing machine has a washing part and a drying part. The washing part is configured to wash clothes, and the drying part is configured to dry clothes. The washing part and the drying part have corresponding control parts and inlet, drainage or air structures respectively. Commonly, the washing part generally has two structures: a drum washing machine and a pulsator washing machine. The drying part generally dries clothes by passing high-temperature, dry air into it.

[0003] Although through continuous improvement, the above-mentioned traditional mother-and-child washing machines have achieved good washing effects and drying efficiency so far, they still have the following defects: First: for pulsator washing machines, during the washing process, the pollutants attached to the clothes are removed by the driving effect of the water flow and the pulsator as well as the effect of the detergent, and the efficiency of the washing operation is limited; Second: for drum washing machines, during the washing process, the pollutants attached to the clothes are removed only by the throwing and falling movement of the clothes and the effect of the detergent, and the efficiency of the washing operation is also very limited; Third: in the process of washing clothes, the rinsing stage (especially when high water level and multiple rinsings are selected) and the dehydration stage, the discharged water is relatively clean in most cases. If it is discharged directly, it will cause a waste of water resources; Fourth: in the stage of drying clothes, the temperature of the wastewater and exhaust gas discharged from the drying section is relatively high, and they are directly discharged outside the drying section, resulting in a waste of energy.

[0004] The Chinese patent with the announcement number CN 101187123B provides a clothing processing system, which includes a first body for washing, a second body installed on one side of the first body and performing drying, a water supply line formed in the first body or the second body, and a water supply control method for controlling the opening and closing state or the connection state of the water supply line. Warm water and cold water supplied from an external warm water supply source and a cold water supply source are supplied to the first body after passing through the second body, making it possible to perform warm water washing using high-temperature waste water generated after drying or dehumidification. Therefore, the invention can save water used in warm water washing and can save energy consumed for producing warm water. However, it was found during use that this solution still has the following defects: First, it has multiple drainage outlets, a complex structure, and is inconvenient to install; Second, the improvement of the washing effect by relying solely on water temperature is very limited, and the clothing washing effect and efficiency still need to be further improved; Third, although the use of cooling water in the drying process has improved the problem of high water consumption to a certain extent, the overall utilization rate of water resources is still low; Fourth, the cooling water generated in the drying process is used for warm water washing, and the heat utilization rate is low.

[0005] Therefore, providing a mother-and-child washing machine with a simple structure, convenient installation, good clothing washing effect, high washing efficiency, and high water resource and heat utilization is one of the technical problems that technical personnel in this field need to solve urgently. Summary of the invention

[0006] In view of this, the present invention aims to propose a mother-and-child washing machine to solve the technical problems of existing mother-and-child washing machines, such as complex structure, poor clothing washing effect, low washing efficiency, and low water resource and heat utilization.

[0007] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0008] A mother-and-child washing machine comprises a washing unit, a drying unit and a control unit, wherein the washing unit is configured to wash clothes, and the drying unit is configured to dry clothes, the control unit can control the washing unit to wash clothes, and the control unit can also control the drying unit to dry clothes, and the washing unit and the drying unit share a drainage system.

[0009] Furthermore, the drying section includes a hot air supply device, a drying cylinder and a condensing device, the drying cylinder is provided with a first air inlet and a first exhaust port, the first air inlet is connected to the hot air supply device through a first pipeline, and the first exhaust port is connected to the condensing device through a tenth pipeline.

[0010] Furthermore, the condensing device is connected to an external cold water source through a fourth pipeline, so that water in the cold water source can be injected into the condensing device to condense the high-temperature and high-humidity steam discharged into the condensing device through the tenth pipeline into low-temperature dry steam.

[0011] Furthermore, the condensing device is connected to the hot air supply device through an eleventh pipeline to re-inject the low-temperature dried steam into the hot air supply device.

[0012] Furthermore, the washing unit includes a washing tub having a water inlet and a water outlet, and the water inlet is connected to a bypass port arranged on the fourth pipeline through a seventh pipeline.

[0013] Furthermore, the drain port is connected to a drain pump through an eighth pipeline, and the outlet of the drain pump is connected to a water outlet on the fuselage.

[0014] Furthermore, the condensing device is connected to the water outlet on the fuselage through a twelfth pipeline.

[0015] Furthermore, a fourth valve is provided at the bypass port on the fourth pipeline, and the fourth valve is a three-way valve.

[0016] Furthermore, a bypass port is provided on the eighth pipeline, and the bypass port on the eighth pipeline is connected to the twelfth pipeline, so that the condensed water discharged through the twelfth pipeline can be discharged outside the mother-and-child machine through the eighth pipeline, the drainage pump and the water outlet.

[0017] Furthermore, a tenth valve is provided in the eighth pipeline, and the tenth valve is a stop valve.

[0018] Compared with the prior art, the mother-and-child washing machine of the present invention has the following advantages:

[0019] (1) The mother-and-child washing machine of the present invention shares a drainage system with the washing part and the drying part, so that the structure of the mother-and-child washing machine is simpler and the installation is more convenient.

[0020] (2) The mother-and-child washing machine of the present invention uses the high-temperature and high-humidity steam generated during the clothes drying process directly in the clothes washing process, thus realizing direct exchange of heat energy. Compared with the prior art, the utilization rate of heat energy is higher. The water in the high-temperature and high-humidity steam discharged from the drying drum can also be utilized at the same time.

[0021] (3) The mother-and-child washing machine of the present invention passes the high-temperature and high-humidity steam generated during the drying process of clothes into the condensing device for heat exchange when the washing part is not washing, and stores the steam through the condensing device, so that the utilization rate of thermal energy is further improved.

[0022] (4) The mother-and-child washing machine described in the present invention introduces the high-temperature and high-humidity steam generated during the clothes drying process into the washing drum to participate in the washing process. On the one hand, it exchanges heat with the washing water and clothes in the washing drum to improve the washing temperature and washing efficiency; on the other hand, a large number of bubbles are generated in the washing drum, so that the clothes are constantly lifted, tumbled and dropped under the action of the bubbles, further improving the washing effect of the clothes; further, the clothes in the washing drum will be easy to lift and not easy to be entangled under the action of the bubbles, which can also reduce the wear of the clothes during the washing process. In addition, the detergent will be able to dissolve more quickly and better exert the decontamination effect under the action of the bubbles.

[0023] (5) The mother-and-child washing machine of the present invention can further pass the gas discharged from the washing tub into the condensing device, so as to reutilize the temperature of the gas discharged from the washing tub, thereby further improving the utilization rate of thermal energy.

[0024] Therefore, the mother-and-child washing machine of the present invention has the advantages of simple structure, convenient installation, good clothing washing effect, high washing efficiency, and high water resource and heat utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 This is a schematic structural diagram of a mother-and-child washing machine according to an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the first internal structure of the mother-and-child washing machine according to an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of a second internal structure of the mother-and-child washing machine according to an embodiment of the present invention;

[0029] Figure 4 A third internal structure schematic diagram of the mother-and-child washing machine according to an embodiment of the present invention;

[0030] Figure 5 A fourth internal structure schematic diagram of the mother-and-child washing machine according to an embodiment of the present invention;

[0031] Figure 6 It is a structural schematic diagram of a condensing device of a mother-and-child washing machine according to an embodiment of the present invention;

[0032] Figure 7 It is a schematic structural diagram of a pulse steam generating device of a mother-and-child washing machine according to an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1-washing section, 101-washing drum, 1011-second air inlet, 1012-second exhaust port, 1013-drain port, 1014-water inlet, 102-temperature measuring device, 103-drain pump, 104-water outlet, 2-drying section, 201-hot air supply device, 202-drying drum, 2021-first air inlet, 2022-first exhaust port, 203-pulse steam generating device, 2031-main line, 2032-branch line, 2033-first pressure transmitter, 2034-second pressure transmitter, 204-condensing device, 2041-return air port, 2042-return air exhaust port, 2043-cold water inlet, 2044-warm water outlet, 2045-partition, 205-water level detection device, 206-air outlet, 3-control section, 4-cold water source, 5-warm water source, L1-first pipeline, L2-second pipeline, L3-third pipeline, L4-fourth pipeline, L5-fifth pipeline, L6-sixth pipeline, L7-seventh pipeline, L8-eighth pipeline, L9-ninth pipeline, L10-tenth pipeline, L11-eleventh pipeline, L12-twelfth pipeline, L13-thirteenth pipeline, F1-first valve, F2-second valve, F3-third valve, F4-fourth valve, F5-fifth valve, F6-sixth valve, F7-seventh valve, F8-eighth valve, F9-ninth valve, F10-tenth valve, F11-eleventh valve, F12-twelfth valve. DETAILED DESCRIPTION

[0035] In order to make the technical means, objectives and effects of the present invention easy to understand, the embodiments of the present invention are described in detail below with reference to specific drawings.

[0036] It should be noted that all the terms used in the present invention for directional and positional indications, such as "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "top", "low", "lateral", "longitudinal", "center", etc., are only used to explain the relative positional relationship and connection status between the components in a certain state (as shown in the accompanying drawings), and are only for the convenience of describing the present invention, rather than requiring the present invention to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes, and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; 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 the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0039] Example 1

[0040] like Figure 1-7 As shown, a mother-and-child washing machine comprises a washing unit 1, a drying unit 2 and a control unit 3. The washing unit 1 is configured to wash clothes, the drying unit 2 is configured to dry clothes, the control unit 3 can control the washing unit 1 to wash clothes, and the control unit 3 can also control the drying unit 2 to dry clothes. The washing unit 1 and the drying unit 2 share a drainage system.

[0041] Specifically, Figure 2 As shown, the drying section 2 includes a hot air supply device 201 , a drying drum 202 and a condensing device 204 . The hot air supply device 201 is configured to deliver high-temperature dry air to the drying drum 202 to dry the clothes in the drying drum 202 .

[0042] Further, the drying drum 202 is provided with a first air inlet 2021 and a first air outlet 2022. The first air inlet 2021 is connected to the hot air supply device 201 through a first pipeline L1. One end of the first pipeline L1 is connected to the first air inlet 2021, and the other end of the first pipeline L1 is connected to the hot air supply device 201. The high-temperature dry air generated by the hot air supply device 201 enters the drying drum 202 through the first pipeline L1 and the first air inlet 2021, and after drying the clothes in the drying drum 202, it becomes high-temperature and high-humidity steam, and the high-temperature and high-humidity steam is discharged from the drying drum 202 through the first air outlet 2022. The first air outlet 2022 is connected to the condensing device 204 through a tenth pipeline L10. One end of the tenth pipeline L10 is connected to the first air outlet 2022, and the other end of the tenth pipeline L10 is connected to the return air outlet 2041 on the condensing device 204. The high-temperature and high-humidity steam discharged from the drying drum 202 becomes low-temperature and dry air after passing through the condensing device 204, and is discharged into the eleventh pipeline L11 from the return air discharge port 2042 on the condensing device 204. One end of the eleventh pipeline L11 is connected to the return air discharge port 2042 on the condensing device 204, and the other end of the eleventh pipeline L11 is connected to the hot air supply device 201. After passing through the condensing device 204 and the eleventh pipeline L11 and entering the hot air supply device 201 again, it is heated again by the hot air supply device 201 and discharged into the drying drum 202 to heat the clothes.

[0043] Furthermore, the condensing device 204 also has a cold water inlet 2043 and a warm water outlet 2044. The cold water inlet 2043 is connected to the cold water source 4 through the fourth pipeline L4, so that the cold water source 4 can inject condensed water into the condensing device 204 through the fourth pipeline L4.

[0044] Further, the warm water outlet 2044 is connected to the water outlet 104 through the twelfth pipeline L12. Specifically, the washing tub 101 has a water inlet 1014 and a drain outlet 1013, and the water inlet 1014 is connected to a bypass port provided on the fourth pipeline L4 through the seventh pipeline L7. Preferably, a fourth valve F4 is provided at the bypass port on the fourth pipeline L4, and the fourth valve F4 is a three-way valve, and the inlet of the fourth valve F4 is connected to the side of the fourth pipeline L4 close to the cold water source 4, and one outlet of the fourth valve F4 is connected to the side of the fourth pipeline L4 close to the condensing device 204, and the other outlet of the fourth valve F4 is connected to the seventh pipeline L7.

[0045] Furthermore, one end of the eighth pipeline L8 is connected to the drain port 1013 provided on the washing tub 101, and the other end of the eighth pipeline L8 is connected to the drain pump 103, and the outlet of the drain pump 103 is connected to the water outlet 104 on the machine body. The arrangement of the drain pump 103 enables the washing water in the washing tub 101 to be discharged to the outside of the mother-child machine via the drain port 1013, the eighth pipeline L8, the drain pump 103 and the water outlet 104 in sequence.

[0046] Furthermore, a bypass port is provided on the eighth pipeline L8, and the bypass port on the eighth pipeline L8 is connected to the twelfth pipeline L12, so that the condensed water discharged through the twelfth pipeline L12 can be discharged outside the mother-child machine through the eighth pipeline L8, the drainage pump 103 and the water outlet 104.

[0047] Preferably, a tenth valve F10 is provided in the eighth pipeline L8, and the tenth valve F10 is a stop valve, and the tenth valve F10 can control the on-off of the eighth pipeline L8. The tenth valve F10 is connected to the control unit 3, and the control unit 3 can control the opening and closing of the tenth valve F10. More preferably, the tenth valve F10 is located between the drain port 1013 and the bypass port on the eighth pipeline L8.

[0048] The mother-and-child washing machine shares a drainage system through the washing part 1 and the drying part 2, so that the structure of the mother-and-child washing machine is simpler and the installation is more convenient.

[0049] As some embodiments of the present application, the condensing device 204 may be an air cooling device or an electric heating and drying device in addition to the above-mentioned water cooling device. The high-temperature and high-humidity steam in the tenth pipeline L10 is cooled by the external cold air to become low-temperature dry air, or the high-temperature and high-humidity steam in the tenth pipeline L10 is heated by the electric heating device to become high-temperature dry air. The condensed water generated by the condensation of the high-temperature and high-humidity steam in the tenth pipeline L10 is discharged through the twelfth pipeline L12.

[0050] As some embodiments of the present application, further, Figure 3As shown, one end of the twelfth pipeline L12 is connected to the condensing device 204, and the other end of the twelfth pipeline L12 is connected to the eleventh valve F11. The eleventh valve F11 is a three-way valve, the inlet of the eleventh valve F11 is connected to the twelfth pipeline L12, one outlet of the eleventh valve F11 is connected to the water inlet 1014 on the washing tub 101, and the other outlet of the eleventh valve F11 is connected to the thirteenth pipeline L13. The eleventh valve F11 is connected to the control unit 3, and the control unit 3 can control the opening and closing of the eleventh valve F11. One end of the thirteenth pipeline L13 is connected to the eleventh valve F11, and the other end of the thirteenth pipeline L13 is connected to the bypass port on the eighth pipeline L8. When the washing section 1 and the drying section 2 are in working state at the same time, the control section 3 can control the outlet on one side of the eleventh valve F11 connected to the water inlet 1014 to open, so that the high-temperature condensed water in the twelfth pipeline L12 can enter the washing drum 101 to wash clothes, which not only improves the washing efficiency but also saves water.

[0051] As some embodiments of the present application, further, Figure 4 As shown, the mother-and-child washing machine is also connected to the warm water source 5. Specifically, one end of the twelfth pipeline L12 is connected to the condensing device 204, and the other end of the twelfth pipeline L12 is connected to the twelfth valve F12. The twelfth valve F12 is a four-way valve, one inlet of the twelfth valve F12 is connected to the twelfth pipeline L12, the other inlet of the twelfth valve F12 is connected to the warm water source 5 through the sixth pipeline L6, one outlet of the twelfth valve F12 is connected to the thirteenth pipeline L13, and the other outlet of the twelfth valve F12 is connected to the water inlet 1014 on the washing tub 101. The twelfth valve F12 is connected to the control unit 3, and the control unit 3 can control the opening and closing of the twelfth valve F12. The mother-and-child washing machine can regulate the twelfth valve F12 through the control unit 3, so that the condensed water in the twelfth pipeline L12 can be directly injected into the washing drum 101 or directly discharged from the outside of the mother-and-child washing machine; in addition, the mother-and-child washing machine can also regulate the twelfth valve F12 through the control unit 3 to directly inject warm water into the washing drum 101 through the warm water source 5.

[0052] Example 2

[0053] like Figure 1 and 5-7 shows a mother-and-child washing machine, which includes a washing unit 1, a drying unit 2 and a control unit 3. The washing unit 1 is configured to wash clothes, and the drying unit 2 is configured to dry clothes. The control unit 3 can control the washing unit 1 to wash clothes, and the control unit 3 can also control the drying unit 2 to dry clothes.

[0054] Furthermore, the drying section 2 includes a hot air supply device 201 , a drying drum 202 and a condensing device 204 . The hot air supply device 201 is configured to deliver high-temperature dry air to the drying drum 202 to dry the clothes in the drying drum 202 .

[0055] In some embodiments of the present invention, an electric heating device is provided in the hot air supply device 201, and the hot air supply device 201 is connected to the external air. The hot air supply device 201 can absorb the external air thereinto, heat it, and transmit the heated high-temperature dry air to the drying drum 202 to dry the clothes in the drying drum 202.

[0056] Further, the drying drum 202 is provided with a first air inlet 2021 and a first air outlet 2022. The first air inlet 2021 is connected to the hot air supply device 201 through a first pipeline L1. One end of the first pipeline L1 is connected to the first air inlet 2021, and the other end of the first pipeline L1 is connected to the hot air supply device 201. The high-temperature dry air generated by the hot air supply device 201 enters the drying drum 202 through the first pipeline L1 and the first air inlet 2021, dries the clothes in the drying drum 202, and then becomes high-temperature and high-humidity steam. The high-temperature and high-humidity steam is discharged from the drying drum 202 through the first air outlet 2022. The first air outlet 2022 is connected to the washing drum 101 through a second pipeline L2. One end of the second pipeline L2 is connected to the first air outlet 2022, and the other end of the second pipeline L2 is connected to the second air inlet 1011 on the washing drum 101.

[0057] In some embodiments of the present invention, the first air inlet 2021 and the first exhaust port 2022 are relatively arranged on both sides of the drying drum 202, so that the high-temperature dry air can fully contact the clothes and take away the moisture on the clothes. Preferably, the first air inlet 2021 and the first exhaust port 2022 are respectively arranged at the two ends of a diagonal line of the drying drum 202. More preferably, when the drying drum 202 is placed in a use state, the first air inlet 2021 is located at the lower part of the drying drum 202, and the first exhaust port 2022 is located at the upper part of the drying drum 202.

[0058] Further, the condensing device 204 has a cavity capable of storing water, and a heat preservation layer is provided inside the cavity. Preferably, the cavity is a cylindrical cavity. Further, a return air port 2041 and a warm water outlet 2044 are provided at the bottom of the cavity, a return air discharge port 2042 and a cold water inlet 2043 are provided at the top of the cavity, a bypass port is provided on the second pipeline L2, the return air port 2041 is connected to the bypass port on the second pipeline L2, a first valve F1 is provided at the bypass port on the second pipeline L2, the first valve F1 is a three-way valve, the side of the first valve F1 connected to the first exhaust port 2022 is an inlet, the side of the first valve F1 connected to the washing tub 101 is an outlet, and the side of the first valve F1 connected to the return air port 2041 is another outlet. The first valve F1 is connected to the control unit 3, and the control unit 3 can control the opening and closing of the first valve F1. When the washing section 1 and the drying section 2 are both in working state, the outlet connected to the washing drum 101 by the first valve F1 will be opened under the control of the control section 3, and the first exhaust port 2022 will be connected to the washing drum 101. The high-temperature and high-humidity steam discharged from the first exhaust port 2022 can enter the washing drum 101 through the second pipeline L2 to participate in the washing process of the washing section 1. On the one hand, it can exchange heat with the washing water and clothes in the washing drum 101 to improve the washing temperature and washing efficiency; on the other hand, a large number of bubbles are generated in the washing drum 101, so that the clothes are constantly lifted, tumbled and dropped under the action of the bubbles, further improving the washing effect of the clothes; further, the clothes in the washing drum 101 will be easily lifted and not easily entangled under the action of the bubbles, which can reduce the wear of the clothes during the washing process. In addition, the detergent will be able to dissolve more quickly and better play a decontamination effect under the action of the bubbles. Compared with the prior art, the present invention uses the high-temperature and high-humidity steam discharged from the first exhaust port 2022 to directly exchange heat with the washing water in the washing tub 101. On the one hand, the heat exchange efficiency is better, and on the other hand, the moisture in the high-temperature and high-humidity steam discharged from the first exhaust port 2022 can be used at the same time. When the washing part 1 is in the standby state and the drying part 2 is in the working state, the outlet connected to the first valve F1 and the return air port 2041 is opened, so that the first exhaust port 2022 is connected to the condensing device 204, and the high-temperature and high-humidity steam discharged from the first exhaust port 2022 can enter the condensing device 204 through the bypass port on the second pipeline L2, and after heat exchange with the cold water pre-stored in the cavity, it is discharged from the return air discharge port 2042 at the top of the condensing device 204, and the heat and moisture in the high-temperature and high-humidity steam discharged from the first exhaust port 2022 are absorbed and stored by the condensing device 204.

[0059] Furthermore, the warm water outlet 2044 is connected to the water inlet 1014 provided on the washing tub 101 through the fifth pipeline L5, the return air outlet 2042 is connected to the air outlet 206, and the air outlet 206 is connected to the atmosphere outside the mother-child washing machine. One end of the fifth pipeline L5 is connected to the warm water outlet 2044, and the other end of the fifth pipeline L5 is connected to the fifth valve F5. The cold water inlet 2043 is connected to the external cold water source 4 through the fourth pipeline L4, one end of the fourth pipeline L4 is connected to the cold water source 4, and the other end of the fourth pipeline L4 is connected to the cold water inlet 2043.

[0060] Furthermore, the fourth pipeline L4 has a bypass port, and the bypass port on the fourth pipeline L4 is connected to the water inlet 1014 on the washing tub 101.

[0061] Furthermore, a fourth valve F4 is provided at the bypass port on the fourth pipeline L4, and the fourth valve F4 is a three-way valve, and the side of the fourth valve F4 connected to the cold water source 4 is an inlet, the side of the fourth valve F4 connected to the cold water inlet 2043 is an outlet, and the side of the fourth valve F4 connected to the water inlet 1014 is another outlet. The fourth valve F4 is connected to the control unit 3, and the control unit 3 can control the opening and closing of the fourth valve F4. When it is necessary to directly inject cold water into the washing tub 101, the outlet of the fourth valve F4 connected to the water inlet 1014 is opened, so that the water in the cold water source 4 can be directly injected into the washing tub 101. When it is necessary to inject cold water into the condensing device 204, the outlet of the fourth valve F4 connected to the cold water inlet 2043 is opened, so that the water in the cold water source 4 can be directly injected into the condensing device 204.

[0062] Furthermore, the condensing device 204 is provided with a water level detection device 205, and the water level detection device 205 can regularly detect the water level in the condensing device 204 and transmit the detection result to the control unit 3. The control unit 3 will compare the water level in the condensing device 204 with the preset water level. When the water level in the condensing device 204 is lower than the preset water level, the control unit 3 will control the opening and closing of the fourth valve F4 and the third valve F3 to add water to the condensing device 204. When the water level in the condensing device 204 is equal to or higher than the preset water level, the control unit 3 will stop adding water to the condensing device 204 by controlling the opening and closing of the fourth valve F4 and the third valve F3.

[0063] Preferably, a plurality of partitions 2045 are provided in the cavity of the condensing device 204, and the partitions 2045 are plate-like structures obliquely arranged in the cavity. The partitions 2045 are cross-arranged to form a tortuous gas flow channel in the cavity. When the gas enters the condensing device 204 through the return air port 2041, it will be transmitted to the top of the condensing device 204 along the gas flow channel formed by the partitions 2045. In this process, the gas can fully contact with the water pre-stored in the condensing device 204, thereby realizing heat exchange between high-temperature gas and low-temperature water.

[0064] Furthermore, the water inlet 1014 is also connected to the external warm water source 5 through the sixth pipe L6, so that the washing tub 101 can directly obtain warm water from the external warm water source 5. One end of the sixth pipe L6 is connected to the warm water source 5, and the other end of the sixth pipe L6 is connected to the fifth valve F5.

[0065] Furthermore, a fifth valve F5 is provided at one end of the fifth pipeline L5 and the sixth pipeline L6 near the water inlet 1014. The fifth valve F5 is a three-way valve. The side of the fifth valve F5 connected to the water inlet 1014 is an outlet, the side of the fifth valve F5 connected to the fifth pipeline L5 is an inlet, and the side of the fifth valve F5 connected to the sixth pipeline L6 is another inlet. The fifth valve F5 is connected to the control unit 3, and the control unit 3 can control the opening and closing of the fifth valve F5. When the side of the fifth valve F5 connected to the fifth pipeline L5 is opened, the warm water stored in the condensing device 204 can enter the washing drum 101 via the fifth pipeline L5, the fifth valve F5 and the water inlet 1014; when the side of the fifth valve F5 connected to the sixth pipeline L6 is opened, the washing drum 101 can directly obtain warm water through the external warm water source 5, the sixth pipeline L6, the fifth valve F5 and the water inlet 1014.

[0066] Furthermore, a temperature sensor is provided in the condensing device 204, and the temperature sensor can measure the water temperature stored in the condensing device 204. The temperature sensor is connected to the control unit 3, and the temperature sensor can transmit the measured water temperature data to the control unit 3. The control unit 3 stores the preset water temperature value of the condensing device 204, and the water temperature is the optimal washing temperature. Preferably, the water temperature is 30-50°C, and more preferably, the preset water temperature value is 40°C.

[0067] Furthermore, the control unit 3 can compare the water temperature data measured by the temperature sensor with the preset water temperature value. If the water temperature in the condensing device 204 is higher than the preset water temperature, the control unit 3 can simultaneously open the side of the fourth valve F4 connected to the water inlet 1014 and the side of the fifth valve F5 connected to the fifth pipeline L5, so that the warm water in the condensing device 204 and the cold water in the cold water source 4 can be injected into the washing drum 101 at the same time. The control unit 3 can adjust the water temperature injected into the washing drum 101 by controlling the opening and closing time of the fifth valve F5 and the fourth valve F4.

[0068] Further, the washing unit 1 includes a washing tub 101, a temperature measuring device 102 and a drain pump 103. The washing tub 101 is provided with a second air inlet 1011 and a second air outlet 1012. The second air inlet 1011 is connected to the first air outlet 2022 through a second pipeline L2, and the gas entering the washing tub 101 through the second pipeline L2 and the first air outlet 2022 can be discharged from the washing tub 101 through the second air outlet 1012. The second air outlet 1012 is connected to the return air outlet 2041 on the condensing device 204 through a third pipeline L3, so that the low-temperature gas discharged from the washing tub 101 can enter the condensing device 204 through the third pipeline L3 and the return air outlet 2041. One end of the third pipeline L3 is connected to the bypass port on the eighth pipeline L8, and the other end of the third pipeline L3 is connected to the return air outlet 2041.

[0069] Furthermore, the return air discharge port 2042 is connected to the air outlet 206 through the ninth pipeline L9, the third pipeline L3 is connected to the ninth pipeline L9, the third pipeline L3 is connected to the ninth pipeline L9 through the second valve F2, and the second valve F2 is a four-way valve. The side of the second valve F2 connected to the return air discharge port 2042 is an inlet, the side of the second valve F2 connected to the second exhaust port 1012 is another inlet, the side of the second valve F2 connected to the air outlet 206 is an outlet, the side of the second valve F2 connected to the return air port 2041 is another outlet, and the second valve F2 is connected to the control unit 3, and the control unit 3 can control the opening and closing of the second valve F2.

[0070] Furthermore, the third pipeline L3 is provided with a temperature measuring device 102, and the temperature measuring device 102 can measure the temperature of the return air discharged from the second exhaust port 1012 into the third pipeline L3. The temperature measuring device 102 is connected to the control unit 3, and the temperature measuring device 102 can transmit the return air temperature data measured by the temperature measuring device 102 to the control unit 3, and the control unit 3 can compare the return air temperature measured by the temperature measuring device 102 with the temperature of the water in the condensing device 204. If the return air temperature measured by the temperature measuring device 102 is higher than the temperature of the water in the condensing device 204, the control unit 3 will control the second valve F2 to open the side connected to the return air port 2041, so that the gas discharged from the second exhaust port 1012 can enter the condensing device 204 through the third pipeline L3, the second valve F2 and the return air port 2041, and perform heat exchange with the water stored in the condensing device 204. If the return air temperature measured by the temperature measuring device 102 is lower than or equal to the temperature of the water in the condensing device 204, the control unit 3 will control the second valve F2 to open the side connected to the air outlet 206, so that the gas discharged from the second exhaust port 1012 into the third pipeline L3 can be discharged to the outside of the mother-child machine through the second valve F2, the ninth pipeline L9 and the air outlet 206.

[0071] Preferably, the second air inlet 1011 is arranged at the bottom of the washing drum 101, and the second exhaust port 1012 is arranged at the top of the washing drum 101, so that after the gas enters the washing drum 101 through the second air inlet 1011, it can flow from top to bottom to the top of the washing drum 101, and then be discharged from the washing drum 101 through the second exhaust port 1012.

[0072] Furthermore, the second exhaust port 1012 is connected to the third pipeline L3 through a bypass port provided on the third pipeline L3, one end of the third pipeline L3 is connected to the return air port 2041, and the other end is connected to the eighth pipeline L8. One end of the eighth pipeline L8 is connected to a drain port 1013 provided on the washing tub 101, and the other end of the eighth pipeline L8 is connected to a drain pump 103. The arrangement of the drain pump 103 enables the washing water in the washing tub 101 to be discharged to the outside of the mother-child machine via the drain port 1013, the eighth pipeline L8, the drain pump 103 and the water outlet 104 in sequence.

[0073] Furthermore, a third valve F3 is provided at the connection between the eighth pipeline L8 and the third pipeline L3. The third valve F3 is a three-way valve. The side of the third valve F3 connected to the drain port 1013 is an inlet, the side of the third valve F3 connected to the third pipeline L3 is an outlet, and the side of the third valve F3 connected to the drain pump 103 is another outlet. The third valve F3 is connected to the control unit 3, and the control unit 3 can control the opening and closing of the third valve F3. When the washing water in the washing tub 101 is dirty or the water level in the condensing device 204 is higher than or equal to the preset water level, the washing water in the washing tub 101 needs to be directly discharged to the outside of the mother-and-child machine, the control unit 3 controls the side of the third valve F3 connected to the drain pump 103 to open, so that the washing water discharged from the washing tub 101 can be directly discharged to the outside of the mother-and-child machine through the drain port 1013, the eighth pipeline L8, the drain pump 103 and the water outlet 104. When the washing water in the washing drum 101 is relatively clean and the water level in the condensing device 204 is lower than the preset water level, the control unit 3 controls the side of the third valve F3 connected to the third pipeline L3 to open, so that the washing water discharged from the washing drum 101 can enter the condensing device 204 through the drain port 1013, the eighth pipeline L8, the third valve F3, the third pipeline L3 and the return air port 2041.

[0074] In some embodiments of the present invention, a pulse steam generator 203 is provided on the second pipeline L2, and the pulse steam generator 203 is located between the first valve F1 and the second air inlet 1011. The pulse steam generator 203 delivers pulse steam with adjustable intensity and frequency into the washing tub 101. Compared with delivering uniform steam into the washing tub 101, the pulse steam can drive the clothes to be thrown up and down to a greater extent, effectively preventing the clothes from being entangled, and improving the washing efficiency and cleaning effect.

[0075] Specifically, the pulse steam generating device 203 includes a main pipeline 2031 and a branch pipeline 2032, the air inlet end of the main pipeline 2031 is connected to the first exhaust port 2022, the air outlet end of the main pipeline 2031 is connected to the second air inlet 1011, the branch pipeline 2032 is connected in parallel to both ends of the main pipeline 2031, the main pipeline 2031 is provided with a first pressure transmitter 2033, a sixth valve F6 and a second pressure transmitter 2034 in sequence along the direction of gas discharge, and the branch pipeline 2032 is provided with a seventh valve F7, an eighth valve F8 and a ninth valve F9 in sequence along the direction of gas discharge. The first pressure transmitter 2033, the sixth valve F6, the second pressure transmitter 2034, the seventh valve F7, the eighth valve F8 and the ninth valve F9 are all connected to the control unit 3 and controlled by the control unit 3.

[0076] Furthermore, the sixth valve F6 , the seventh valve F7 , the eighth valve F8 and the ninth valve F9 are electric regulating valves, and the first pressure transmitter 2033 and the second pressure transmitter 2034 can transmit their pressure signals to the control unit 3 .

[0077] Specifically, the process of generating pulse steam by the pulse steam generating device 203 is as follows: first, the seventh valve F7, the eighth valve F8 and the ninth valve F9 are in a closed state, the sixth valve F6 is in an open state, steam is delivered to the pulse steam generating device 203 through the second air inlet 1011, the control unit 3 compares the pressure signals collected by the first pressure transmitter 2033 and the second pressure transmitter 2034, and adjusts the pressure difference on both sides of the sixth valve F6 by adjusting the opening degree of the sixth valve F6 according to the required intensity of the pulse steam, thereby adjusting the intensity of the pulse steam. Then, the seventh valve F7 is opened, and the timing of opening and closing of the eighth valve F8 and the ninth valve F9 is adjusted to realize the generation of pulse steam and control the frequency of pulse steam.

[0078] Example 3

[0079] like Figure 1 and 5 -7, a mother-and-child washing machine, the mother-and-child washing machine has the structure described in the above embodiment 2, and the water supply control method of the mother-and-child washing machine is described below in combination with the operating states of the drying part 2 and the washing part 1, specifically:

[0080] The drying section 2 of the mother-and-child washing machine performs a drying operation, and the washing section 1 performs a washing operation at the same time: before starting the machine, the control section 3 will first detect the working status of the drying section 2. If the drying section 2 needs to perform a drying operation, the hot air supply device 201 will continuously deliver high-temperature dry air to the drying drum 202 through the first pipeline L1 and the first air inlet 2021 to dry the clothes in the drying drum 202. The high-temperature dry air intersects with the clothes in the drying drum 202, takes away the moisture on the clothes, and becomes high-temperature and high-humidity air, which is discharged through the first exhaust port 2022. At the same time, the control unit 3 will determine whether the washing unit 1 needs to perform a washing operation. If the washing unit 1 needs to perform a washing operation, the control unit 3 will inject water into the washing tub 101 according to the user's choice. If the user chooses to inject cold water, the control unit 3 will control the fourth valve F4 to open and inject cold water into the washing tub 101 through the cold water source 4; if the user chooses to inject warm water, the control unit 3 will control the fifth valve F5 to open and inject warm water into the washing tub 101 through the condensing device 204 or the warm water source 5. Preferably, the control unit 3 will preferentially use the condensing device 204 to inject warm water into the washing tub 101. When there is no warm water in the condensing device 204, the control unit 3 will inject warm water into the washing tub 101 through the warm water source 5.

[0081] In addition, as some embodiments of the present application, the control unit 3 can also open the fifth valve F5 and the fourth valve F4 at the same time, and adjust the temperature of water injected into the washing tub 101 by controlling the opening and closing time of the fifth valve F5 and the fourth valve F4.

[0082] While water is being poured into the washing tub 101, the control unit 3 controls the first valve F1 to open the outlet on one side of the first valve F1 connected to the washing tub 101, so that the high-temperature and high-humidity air discharged through the first exhaust port 2022 can enter the washing tub 101 from the lower part of the washing tub 101 through the second pipeline L2, the first valve F1 and the second air inlet 1011. The high-temperature and high-humidity air moves upward in the washing tub 101, heats the washing water, and drives the clothes to be thrown up and dropped, thereby improving the washing efficiency and cleaning effect. After passing through the washing water, the high-temperature and high-humidity air becomes low-temperature and low-humidity return air, which is discharged from the second exhaust port 1012 on the upper part of the washing tube 101 and enters the third pipeline L3. At this time, the temperature measuring device 102 on the third pipeline L3 will measure the temperature of the return air in the third pipeline L3 under the control of the control unit 3, and compare it with the temperature of the water in the condensing device 204. If the return air temperature measured by the temperature measuring device 102 is higher than the temperature of the water in the condensing device 204, it means that the water in the condensing device 204 can be heated by the return air. At this time, the control unit 3 will control the second valve F2 to open the side connected to the return air port 2041, so that the gas discharged from the second exhaust port 1012 can enter the condensing device 204 through the third pipeline L3, the second valve F2 and the return air port 2041, and perform heat exchange with the water stored in the condensing device 204. If the return air temperature measured by the temperature measuring device 102 is lower than or equal to the temperature of the water in the condensing device 204, it means that the water in the condensing device 204 cannot be heated by the return air. The control unit 3 will control the second valve F2 to open the side connected to the air outlet 206, so that the gas discharged from the second exhaust port 1012 into the third pipeline L3 can be discharged to the outside of the mother-and-child machine through the second valve F2, the ninth pipeline L9 and the air outlet 206.

[0083] The drying section 2 of the mother-and-child washing machine performs a drying operation, while the washing section 1 is in a standby state: before starting the machine, the control section 3 will first detect the working state of the drying section 2. If the drying section 2 needs to perform a drying operation, the hot air supply device 201 will continuously deliver high-temperature dry air to the drying drum 202 through the first pipeline L1 and the first air inlet 2021 to dry the clothes in the drying drum 202. The high-temperature dry air intersects with the clothes in the drying drum 202, takes away the moisture on the clothes, and becomes high-temperature and high-humidity air. At the same time, the control unit 3 will determine whether the washing unit 1 is performing a washing operation. If the washing unit 1 is in a standby state, the control unit 3 will control the first valve F1 to open the outlet on one side connected to the first valve F1 and the return air port 2041, so that the high-temperature and high-humidity air discharged from the drying drum 202 can enter the condensing device 204 through the first exhaust port 2022, the second pipeline L2, the first valve F1 and the return air port 2041, and perform heat exchange with the water stored in the condensing device 204, and then be discharged from the return air discharge port 2042 at the upper part of the condensing device 204. At this time, the control unit 3 will control the outlet on one side connected to the second valve F2 and the outlet 206 to open, so that the air discharged from the return air discharge port 2042 can be discharged to the outside of the mother-child machine through the second valve F2, the ninth pipeline L9 and the outlet 206.

[0084] The drying section 2 of the mother-and-child washing machine is in a standby state, while the washing section 1 performs a washing operation: before starting up, the control section 3 will detect the working state of the drying section 2. If the drying section 2 is in a standby state, the control section 3 will detect the working state of the washing section 1. If the washing section 1 needs to perform a washing operation, the control section 3 will obtain the water temperature stored in the condensing device 204 through the temperature sensor. If the water temperature in the condensing device 204 is higher than the preset water temperature, the control section 3 will simultaneously open the side of the fourth valve F4 connected to the water inlet 1014 and the side of the fifth valve F5 connected to the fifth pipeline L5, so that the warm water in the condensing device 204 and the cold water in the cold water source 4 can be injected into the washing tub 101 at the same time. The control section 3 can adjust the water temperature injected into the washing tub 101 by controlling the opening and closing time of the fifth valve F5 and the fourth valve F4. If the water temperature in the condensing device 204 is equal to the preset water temperature, the control unit 3 will open the side of the fifth valve F5 connected to the fifth pipeline L5, so that the warm water in the condensing device 204 can be injected into the washing tub 101. If the water temperature in the condensing device 204 is lower than the preset water temperature, the control unit 3 will open the side of the fifth valve F5 connected to the sixth pipeline L6, so that the water in the warm water source 5 can be injected into the washing tub 101. During the washing process, when the washing tub 101 is draining water outward through the drain port 1013, the control unit 3 will identify the washing process. If the washing process is the washing stage, the control unit 3 will control the side of the third valve F3 connected to the drain pump 103 to open, so that the water in the washing tub 101 can be discharged from the outside of the mother-child machine through the drain port 1013, the eighth pipeline L8, the third valve F3, the drain pump 103 and the water outlet 104. If the washing process is in the rinsing stage or the spin-drying stage, the control unit 3 controls the side of the third valve F3 connected to the third pipeline L3 to open, and controls the side of the second valve F2 connected to the air return port 2041 to open, so that the water in the washing tub 101 can enter the condensing device 204 through the drain port 1013, the eighth pipeline L8, the third valve F3, the third pipeline L3 and the air return port 2041. At the same time, the control unit 3 detects the water level in the condensing device 204 through the water level detection device 205. When the water level in the condensing device 204 is lower than the preset water level, the control unit 3 controls the opening and closing states of the third valve F3 and the second valve F2 to replenish water in the condensing device 204.When the water level in the condensing device 204 is equal to or higher than the preset water level, the control unit 3 will control the side of the third valve F3 connected to the drain pump 103 to open, so that the water in the washing drum 101 can be directly discharged to the outside of the mother-and-child machine through the drain port 1013, the eighth pipeline L8, the third valve F3, the drain pump 103 and the water outlet 104.

[0085] The drying section 2 and the washing section 1 of the mother-and-child washing machine are both in a standby state: before starting up, the control section 3 detects the working state of the drying section 2. If the drying section 2 is in a standby state, the control section 3 will detect the working state of the washing section 1. If the washing section 1 is also in a standby state, the control section 6 will regularly detect the water level in the condensing device 204 through the water level detection device 205. If the water level in the condensing device 204 is lower than the preset water level, the control section 3 will control the opening and closing of the fourth valve F4 to replenish water into the condensing device 204. When the water level in the condensing device 204 is equal to or higher than the preset water level, the control section 3 will stop replenishing water into the condensing device 204 by controlling the opening and closing of the fourth valve F4 and the third valve F3.

[0086] As some embodiments of the present application, when the drying section 2 and the washing section 1 of the mother-and-child washing machine are both in standby state, the control section 3 can start the drying program of the mother-and-child washing machine according to the user's selection. Specifically, the drying program of the mother-and-child washing machine is: after receiving the user's instruction, the control section 3 controls the hot air supply device 201 of the drying section 2 to start, and delivers high-temperature dry air to the drying drum 202. At the same time, the control section 3 controls the side of the first valve F1 connected to the washing drum 101 to open, so that the high-temperature dry air can enter the washing drum 101 through the valve F1. The control section 3 controls the side of the second valve F2 connected to the air outlet 206 to open, so that the air in the washing drum 101 can be discharged from the outside of the mother-and-child washing machine through the air outlet 206. The setting of the drying program of the mother-and-child washing machine enables the mother-and-child washing machine to dry the drying drum 202, the washing drum 101 and the connecting pipes through the high-temperature dry air generated by the hot air supply device 201 according to the user's choice when it is not used for a long time, so that the inside of the mother-and-child washing machine can maintain a dry environment and reduce the growth of bacteria in the mother-and-child washing machine.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mother-and-child washing machine, characterized in that: The mother-and-child washing machine comprises a washing unit (1), a drying unit (2) and a control unit (3); the washing unit (1) is configured to wash clothes, the drying unit (2) is configured to dry clothes, the control unit (3) can control the washing unit (1) to wash clothes, and the control unit (3) can also control the drying unit (2) to dry clothes; the washing unit (1) and the drying unit (2) share a drainage system; The washing section (1) comprises a washing drum (101), and the drying section (2) comprises a hot air supply device (201), a drying drum (202) and a condensing device (204); the drying drum (202) is provided with a first air inlet (2021) and a first air outlet (2022); the first air outlet (2022) is connected to the washing drum (101) via a second pipeline (L2); the high-temperature and high-humidity steam discharged from the first air outlet (2022) can enter the washing drum (101) via the second pipeline (L2) to participate in the washing process of the washing section (1); The condensing device (204) is provided with an air return port (2041), an air return discharge port (2042), a cold water inlet (2043), and a warm water outlet (2044); A bypass port is provided on the second pipeline (L2), the return port (2041) is connected to the bypass port on the second pipeline (L2), and a first valve (F1) is provided at the bypass port on the second pipeline (L2); the second exhaust port (1012) of the washing tub (101) is connected to the return port (2041) via a third pipeline (L3), so that low-temperature gas discharged from the washing tub (101) can enter the condensing device (204) via the third pipeline (L3) and the return port (2041); The return air discharge port (2042) is connected to the air outlet (206), and the air outlet (206) is connected to the atmosphere outside the mother-and-child washing machine; The cold water inlet (2043) is connected to an external cold water source (4) via a fourth pipeline (L4), so that water in the cold water source (4) can be injected into the condensing device (204); The warm water outlet (2044) is connected to a water inlet (1014) provided on the washing tub (101) via a fifth pipeline (L5).

2. The mother-and-child washing machine according to claim 1, characterized in that: The first air inlet (2021) is connected to the hot air supply device (201) via a first pipeline (L1).

3. The mother-and-child washing machine according to claim 1, characterized in that: The washing tub (101) has a water inlet (1014) and a water outlet (1013); the water inlet (1014) is connected to a bypass port provided on the fourth pipeline (L4) via a seventh pipeline (L7).

4. The mother-and-child washing machine according to claim 3, characterized in that: The drainage port (1013) is connected to the drainage pump (103) via an eighth pipeline (L8), and the outlet of the drainage pump (103) is connected to the water outlet (104) on the fuselage.

5. The mother-and-child washing machine according to claim 3, characterized in that: A fourth valve (F4) is provided at the bypass port on the fourth pipeline (L4), and the fourth valve (F4) is a three-way valve.

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