Washing machine dispensing system and control method therefor

Abstract

A washing machine dispensing system and a control method therefor. The washing machine dispensing system comprises a washing machine and an external dispensing device that can communicate with each other. The washing machine at least comprises a built-in liquid storage box, a dispensing module, a monitoring module, and a processing module. The external dispensing device at least comprises a liquid storage box (301) and a dispensing pump (302). The monitoring module is configured to monitor a detergent amount of the built-in liquid storage box to generate an internal liquid storage amount. The processing module is configured to be communicatively connected to the monitoring module, send a liquid feeding request signal to the external dispensing device on the basis of the received internal liquid storage amount, and control a detergent stored in the built-in liquid storage box to flow into the dispensing module. The external dispensing device is configured to, upon reception of the liquid feeding request signal, control to start the dispensing pump (302), so that the liquid storage box (301) conveys, by means of the dispensing pump (302), the detergent or a water flow mixed with the detergent to the dispensing module. According to the structure, during the last washing action, no small amount of detergent will remain in the built-in liquid storage box of the washing machine, thereby avoiding detergent waste.

Description

Washing machine dispensing system and control method thereof Technical Field

[0001] The present invention belongs to the technical field of washing machines, and in particular relates to a washing machine dispensing system and a control method thereof. Background Art

[0002] Detergent placement is an essential component of washing machine operation. Existing washing machines typically require the user to manually add detergent to the drum before washing, or alternatively, the user can add detergent to a removable detergent box within the drum's built-in liquid reservoir. When the washing machine begins washing, the detergent in the built-in liquid reservoir mixes with the water in the built-in dispensing box before being flushed into the drum assembly to wash the clothes in the drum assembly. However, due to the relatively small volume of the detergent box, both of these methods require the user to add detergent before each wash cycle, creating inconvenience for the user.

[0003] Therefore, the existing external dispensing device and the ink cartridge type detergent box of the washing machine can store a large amount of detergent for directly feeding the detergent into the drum assembly or mixing the detergent with water.

[0004] However, there are two situations in which the detergent is delivered to the drum assembly: one is when the detergent box, especially the built-in liquid storage box of the cartridge-type detergent box, has an insufficient amount of detergent to support the last washing action, and an external delivery device is directly used, resulting in the detergent in the built-in liquid storage box not entering the distribution box, and further resulting in a small amount of detergent remaining in the detergent box, causing detergent waste.

[0005] The other is that no matter how much detergent is left in the built-in liquid storage box of the cartridge-type detergent box, the remaining detergent in the built-in liquid storage box is used, and the washing process is carried out under the condition of insufficient detergent, resulting in unclean washing of the clothes load.

[0006] Furthermore, the existing connection structure between the external dispensing device and the washing machine does not allow the external dispensing device and the detergent box to be used simultaneously, because two streams of mixed detergent will flow into the drum assembly, making it difficult to control the water level in the drum assembly.

[0007] In view of this, the present invention is proposed. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a washing machine dispensing system and a control method thereof. When the detergent stored in the built-in liquid storage box in the washing machine is small, the detergent stored in the built-in liquid storage box and the detergent or mixed detergent water flow of the external dispensing device are simultaneously input into the dispensing module of the washing machine, thereby ensuring that there is no detergent residue in the built-in liquid storage box, and achieving that during the last washing action, a small amount of detergent will not remain in the built-in liquid storage box of the washing machine, thereby causing waste.

[0009] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0010] The present invention provides a washing machine dispensing system, comprising a washing machine and an external dispensing device capable of communicating with each other;

[0011] The washing machine dispensing system includes a washing machine and an external dispensing device that can communicate with each other;

[0012] The washing machine comprises at least a built-in liquid storage box, a dispensing module, a detection module and a processing module, and the external dispensing device comprises at least a liquid storage box and a dispensing pump;

[0013] The detection module is used to detect the amount of detergent in the built-in liquid storage box and generate the internal liquid storage volume;

[0014] The processing module is in communication with the detection module and is used to control the washing machine to send a liquid delivery request signal to the external dispensing device according to the received internal liquid storage amount, and control the detergent stored in the built-in liquid storage box to flow into the dispensing module;

[0015] After receiving the liquid delivery request signal, the external delivery device controls the delivery pump to start, so that the liquid storage box delivers detergent or water mixed with detergent to the delivery module through the delivery pump.

[0016] The present invention ensures that no detergent remains in the built-in liquid storage box when the built-in liquid storage box in the washing machine stores less detergent. This ensures that no small amount of detergent will remain in the built-in liquid storage box during the last washing operation, thereby preventing waste.

[0017] A further solution of the present invention is that: the delivery module further comprises a built-in distribution box connected to the built-in liquid storage box, and the external delivery device further comprises a distribution box connected to the liquid storage box;

[0018] After the detergent is mixed with water in the distribution box, it flows into the built-in distribution box through the delivery pump;

[0019] The processing module controls the conduction of the built-in distribution box and the drum assembly after the washing machine receives the liquid delivery completion signal.

[0020] In the above solution, it is achieved that when the external dispensing device and the built-in liquid storage box are used at the same time, only one stream of water entering the washing machine or the external dispensing device is required to enter the drum assembly.

[0021] A further solution of the present invention is that the external delivery device further includes a detection member;

[0022] The detection member is used to detect the amount of detergent in the liquid storage box and obtain the external liquid storage amount;

[0023] The external delivery device controls the delivery pump to start according to the external liquid storage amount.

[0024] A further solution of the present invention is that the washing machine further includes a dosage alarm indicator light;

[0025] The external dispensing device controls the external dispensing device to send dosage alarm signals and release alarm signals to the washing machine according to the external liquid storage amount;

[0026] The processing module is further used to transmit an electrical signal to the alarm indicator light according to the dosage alarm signal and the alarm release signal received by the washing machine, so as to control the turning on and off of the alarm indicator light.

[0027] In the above solution, it is convenient for the user to know when it is necessary to refill the external dispensing device with detergent through the alarm indicator light of the washing machine.

[0028] The present invention also provides a method for controlling a washing machine dispensing system, comprising:

[0029] Detect the amount of detergent stored in the built-in liquid storage box to obtain the internal liquid storage volume;

[0030] If the internal liquid storage volume is less than the internal set volume, the detergent stored in the built-in liquid storage box is controlled to flow out, and the delivery pump is turned on to allow the liquid storage box to deliver detergent or mixed detergent water to the delivery module.

[0031] A further solution of the present invention is that the internal set amount is the amount of detergent added to the washing machine for one washing action.

[0032] In the above solution, when the detergent stored in the washing machine's built-in liquid reservoir is insufficient for the final wash cycle, the detergent stored in the built-in liquid reservoir and the detergent or mixed detergent flow from the external dispensing device are simultaneously fed into the washing machine's dispensing module, ensuring that no detergent remains in the built-in liquid reservoir.

[0033] A further solution of the present invention is: detecting the amount of detergent in the liquid storage box to obtain the external liquid storage amount;

[0034] If the internal liquid storage volume is less than the internal set volume and the external liquid storage volume is greater than the external set volume, the detergent stored in the built-in liquid storage box is controlled to flow out and the dispensing pump is turned on.

[0035] In the above solution, it is ensured that the detergent stored in the external dispensing device is sufficient for washing.

[0036] A further solution of the present invention is that if the internal liquid storage volume is less than the internal set volume, the washing machine sends a liquid delivery request signal to the external dispensing device and controls the detergent stored in the built-in liquid storage box to flow out;

[0037] After the external delivery device receives the liquid delivery request signal, if it determines that the external liquid storage volume is greater than the external set volume, the external delivery device controls the delivery pump to turn on for a set time and then turns off the delivery pump.

[0038] In the above solution, the detergent stored in the built-in liquid storage box and the detergent or mixed detergent water of the external dispensing device are further implemented to pass through the dispensing module of the washing machine and enter the drum assembly at the same time.

[0039] A further solution of the present invention is that after the external dispensing device receives the liquid delivery request signal, if it is determined that the external liquid storage amount is less than or equal to the external set amount, a liquid replenishment prompt is issued through the external dispensing device and / or the washing machine.

[0040] A further solution of the present invention is that: a dosage alarm indicator light is provided on the washing machine, and a dosage alarm indicator light is provided on the washing machine, and the rehydration prompt includes turning on the dosage alarm indicator light;

[0041] The control method includes: after the external dispensing device receives a liquid delivery request signal, if it is determined that the external liquid storage amount is less than or equal to the external set amount, it sends a dosage alarm signal to the washing machine, continuously detects the amount of detergent stored in the liquid storage box, obtains the real-time external liquid storage amount, and if it is determined that the external liquid storage amount is greater than the external set amount, sends a release alarm signal to the washing machine;

[0042] After receiving the dosage alarm signal, the washing machine controls to turn on the dosage alarm indicator light;

[0043] After receiving the alarm release signal, the washing machine controls to turn off the dosage alarm indicator light.

[0044] In the above solution, it is convenient for the user to know when it is necessary to refill the external dispensing device with detergent through the alarm indicator light of the washing machine.

[0045] A further solution of the present invention is: obtaining the time interval between the end of the last washing and the start of the next washing in the washing machine; if the time interval is greater than the set time, executing the emptying procedure of the detergent in the delivery box before the next washing starts, wherein the delivery box includes a liquid storage box and a built-in liquid storage box.

[0046] A further solution of the present invention is: the washing machine is provided with a water inlet valve and a drain valve for controlling water flow, and the emptying procedure includes: opening the water inlet valve and the drain valve, flushing the detergent in the delivery box into the washing machine through the water inlet valve to form a mixed liquid, and discharging the mixed liquid to the outside through the drain valve.

[0047] A further solution of the present invention is that the way in which the water inlet valve flushes the detergent in the delivery box includes: the water inlet valve flushes the detergent from the delivery box into the washing machine to form a mixed liquid, or the water inlet valve flushes the detergent in the delivery box into the washing machine to form a mixed liquid during the process of flowing through the delivery box.

[0048] A further solution of the present invention is to determine whether the detergent in the dispenser box has been emptied according to the opening time or the number of times the water inlet valve is opened;

[0049] When the opening time of the water inlet valve reaches the set opening time or the opening times reach the set opening times, it is determined that the detergent in the delivery box has been emptied. After the detergent in the delivery box is emptied, the water inlet valve and the drain valve are closed.

[0050] A further solution of the present invention is to determine at least one of the opening time and number of openings of the water inlet valve and the opening and closing modes of the water inlet valve and the drain valve according to the remaining amount and / or viscosity of the detergent in the dispenser box.

[0051] A further solution of the present invention is: if the remaining amount of detergent in the delivery box is less than or equal to the set remaining amount, and the viscosity of the detergent is less than or equal to the set viscosity, the water inlet valve and the drain valve are opened at the same time when the emptying program is executed. After the water inlet valve is opened for the first time, the water inlet valve and the drain valve are closed at the same time.

[0052] A further solution of the present invention is: if the remaining amount of detergent in the dispensing box is greater than the set remaining amount and the viscosity of the detergent is less than or equal to the set viscosity, the water inlet valve and the drain valve are opened at the same time when the emptying program is executed. After the water inlet valve is opened for a second time greater than the first time, the water inlet valve is closed first, and then the drain valve is closed after the water inlet valve is closed for a third time.

[0053] A further solution of the present invention is: if the remaining amount of detergent in the dispensing box is greater than the set remaining amount and the viscosity of the detergent is greater than the set viscosity, then when the emptying program is executed, the water inlet valve is opened and the motor of the washing machine is controlled to rotate. After the water inlet valve is opened for a fourth time greater than the second time, the water inlet valve is closed, the motor is controlled to stop rotating, and the drain valve is opened to drain the mixed liquid in the washing machine and then the drain valve is closed.

[0054] A further solution of the present invention is: if the time interval is less than or equal to the set time, or if the time interval is greater than the set time, and the remaining amount of detergent in the delivery box is less than or equal to the set minimum remaining amount, then there is no need to execute the emptying program before the next washing starts, and the washing program is executed directly.

[0055] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0056] When the detergent stored in the built-in liquid storage box in the washing machine is less, the detergent stored in the built-in liquid storage box and the detergent or mixed detergent water flow of the external dispensing device are simultaneously input into the dispensing module of the washing machine, thereby ensuring that there is no detergent residue in the built-in liquid storage box, and achieving that during the last washing action, there will be no small amount of detergent left in the built-in liquid storage box of the washing machine, thereby causing waste.

[0057] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The accompanying drawings are part of the present invention and 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, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0059] FIG1 is a schematic diagram of a washing machine delivery system according to an embodiment of the present invention;

[0060] FIG2 is a schematic diagram of the water connection structure between the external dispensing device and the washing machine in some embodiments of the present invention;

[0061] FIG3 is a rear view schematic diagram of a washing machine delivery system according to an embodiment of the present invention;

[0062] FIG4 is a front view schematic diagram of a washing machine delivery system according to an embodiment of the present invention;

[0063] FIG5 is a flow chart of a control method of a washing machine delivery system in some embodiments of the present invention;

[0064] FIG6 is a flow chart of a control method of a washing machine delivery system in other embodiments of the present invention;

[0065] FIG7 is a schematic diagram of the water connection structure between the external dispensing device and the washing machine in other embodiments of the present invention;

[0066] FIG8 is a schematic diagram of the overall structure of the base platform in an embodiment of the present invention;

[0067] FIG9 is a schematic structural diagram of the bottom platform when the drawer is open according to an embodiment of the present invention;

[0068] FIG10 is a schematic diagram of the internal structure of the base platform according to an embodiment of the present invention;

[0069] FIG11 is a schematic diagram of the overall structure of a drawer according to an embodiment of the present invention;

[0070] FIG12 is a flow chart of a control method for a washing machine delivery system in other embodiments of the present invention.

[0071] Description of the main components in the figure: 1. Washing machine body; 101. Drum assembly; 102. First water inlet; 103. Second water inlet; 2. Base; 201. Base body; 2011. Support frame; 202. Drawer; 2021. Panel; 2022. Storage part; 203. Connector; 2031. First connector; 2032. Second connector; 204. Hose; 2041. First pipeline; 2042. Second pipeline; 205. IPC line; 206. Base; 207. Mounting slot; 208. Folding arm; 2081. Accommodating slot; 2082. Limiting rib; 209. Valve; 210. Line; 212. Dispensing pipeline; 301. Liquid storage box; 3011. Adding port; 3012. First pressure profile; 3013. Second pressure profile; 3014. Suction pipe; 3015. Bottle mouth; 302, dispensing pump; 303, distribution box; 30310, water retaining rib; 304, input end; 305, output end; 4, connecting groove.

[0072] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0073] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0074] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0075] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0076] Example 1

[0077] As shown in Figures 1 to 4, this embodiment provides a washing machine dispensing system, which includes a washing machine and an external dispensing device that can communicate with each other; the washing machine includes at least a built-in liquid storage box, a dispensing module, a detection module and a processing module, and the external dispensing device includes at least a liquid storage box 301 and a dispensing pump 302; the detection module is used to detect the amount of detergent in the built-in liquid storage box and generate an internal liquid storage volume; the processing module is communicatively connected to the detection module and is used to control the washing machine to send a liquid delivery request signal to the external dispensing device based on the received internal liquid storage volume, and control the detergent stored in the built-in liquid storage box to flow into the dispensing module; after receiving the liquid delivery request signal, the external dispensing device controls the dispensing pump 302 to start, so that the liquid storage box 301 delivers detergent, or a water flow mixed with detergent, to the dispensing module through the dispensing pump 302.

[0078] Since a small amount of detergent is likely to remain in the cartridge-type detergent box after the washing process, the built-in liquid storage box is preferably arranged in the cartridge-type detergent box.

[0079] In some possible embodiments, the external dispensing device can be installed on the washing machine or on an additional device of the washing machine, such as the washing machine base 2, as long as the external dispensing device can dispense the detergent stored therein into the dispensing module of the washing machine. The dispensing module is a built-in, automatic dispensing module of the washing machine, and can include a built-in dispensing pump and a built-in dispensing box. The built-in dispensing pump is arranged between the built-in liquid storage box and the built-in dispensing box, and is used to extract the detergent in the built-in liquid storage box and squeeze it into the built-in dispensing box.

[0080] In a possible embodiment, as shown in FIG2 , the built-in dispensing box is connected to the external dispensing device, and the built-in dispensing box is fed into the external dispensing device, and / or the detergent in the built-in dispensing box is diluted and then flushed into the drum assembly 101 .

[0081] In another possible embodiment, as shown in FIG2 , the built-in dispensing box is connected to an external dispensing device, which includes a liquid storage box 301, an extraction pump, and a dispensing box 303. The liquid storage box 301 and the dispensing box 303 are connected via the extraction pump, which can extract the detergent stored in the liquid storage box 301 and squeeze it into the dispensing box 303. The dispensing box 303 of the external dispensing module is connected to the water inlet pipe of the washing machine. The inlet water flows through the dispensing box 303 and flushes the detergent temporarily stored therein into the built-in dispensing box of the washing machine, and then into the drum assembly 101 through the built-in dispensing box, completing the detergent dispensing.

[0082] Furthermore, as shown in FIG3 , in the above-described possible embodiment, by connecting the liquid outlet of the external dispensing device to the first water inlet 102 of the washing machine for supplying water to the dispensing module, or by connecting it to a portion of the first water inlet 102 for supplying water to the dispensing module through a pipe-in-pipe structure, the external dispensing device can dispense the detergent stored therein into the dispensing module of the washing machine. Preferably, the washing machine and the external dispensing device communicate via Bluetooth. Therefore, when the Bluetooth communication devices of both the washing machine and the external dispensing device are turned on, the external dispensing device will automatically connect to the washing machine when it is brought close to the washing machine, so that the user only needs to complete the installation of the external dispensing device's piping and power cord, greatly facilitating the user's installation of the external dispensing device.

[0083] Furthermore, the detection module is preferably a water level sensor, and the processing module can record the maximum liquid storage volume of the built-in liquid storage box detected by the water level sensor and set an internal set volume based on the maximum liquid storage volume. Before the washing process begins, if the water level sensor detects that the liquid level in the built-in liquid storage box is lower than the internal set volume, the washing machine is controlled to send a liquid delivery request signal to the external dispensing device via Bluetooth communication. Furthermore, the internal set volume is preferably one-tenth of the maximum liquid storage volume. The processing module is an electronic device with memory storage and logical judgment functions, including a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), etc. The general-purpose processor can be a microprocessor or any conventional processor. The logical judgment performed by the processing module can be performed by a hardware processor or a combination of hardware and software modules in the processor.

[0084] Therefore, in this embodiment, when the detergent stored in the built-in liquid storage box in the washing machine is less, the detergent stored in the built-in liquid storage box and the detergent or mixed detergent water flow of the external dispensing device are simultaneously input into the dispensing module of the washing machine, thereby ensuring that there is no detergent residue in the built-in liquid storage box, and achieving that during the last washing action, no small amount of detergent will remain in the built-in liquid storage box of the washing machine, so that the user does not need to worry about the deterioration of the residual detergent and the breeding of bacteria.

[0085] In this embodiment, the dispensing module further includes an internal dispensing box connected to the internal liquid reservoir, and the external dispensing device further includes a dispensing box 303 connected to the liquid reservoir 301. After detergent is mixed with water in the dispensing box 303, it flows through the dispensing pump 302 into the internal dispensing box. Upon receiving a liquid delivery completion signal from the washing machine, the processing module controls the connection between the internal dispensing box and the drum assembly 101. This ensures that when both the external dispensing device and the internal liquid reservoir are used simultaneously, only one flow of water, from either the washing machine or the external dispensing device, enters the drum assembly 101.

[0086] In this embodiment, the external dispensing device further includes a detection element; the detection element is used to detect the amount of detergent in the liquid storage box 301 and obtain the external liquid storage volume; the external dispensing device controls the activation of the dispensing pump 302 based on the external liquid storage volume. Furthermore, the detection element is preferably a water level sensor. The external dispensing device further includes a control module, which can record the maximum liquid storage volume of the liquid storage box 301 detected by the water level sensor and set an external set volume based on the maximum liquid storage volume. Before the washing process begins, if the water level sensor detects that the liquid level in the liquid storage box 301 is greater than or equal to the external set volume and receives a liquid delivery request signal from the washing machine, the dispensing pump 302 is controlled to be activated. Furthermore, the external set volume is preferably one-tenth of the maximum liquid storage volume of the liquid storage box 301. The control module, like the processing module, is an electronic device with memory storage and logical judgment functions.

[0087] In this embodiment, the washing machine further includes a dosage alarm indicator; the external dispensing device controls the external dispensing device to transmit dosage alarm signals and alarm release signals to the washing machine based on the external liquid storage level; and the processing module is further configured to transmit an electrical signal to the alarm indicator based on the dosage alarm signals and alarm release signals received by the washing machine, thereby controlling the alarm indicator to turn on and off. It will be appreciated that when the external dispensing device is a base 2, the washing machine is mounted on the base 2 and is elevated, making it easier for the user to view the washing machine's alarm indicator from a higher position. This allows the user to easily identify when the external dispensing device needs to be refilled with detergent. In summary, this embodiment ensures that no detergent remains in the internal liquid storage box by simultaneously feeding the detergent stored in the internal liquid storage box and the detergent or mixed detergent from the external dispensing device into the dispensing module when the detergent storage in the washing machine is low. This ensures that no small amount of detergent remains in the internal liquid storage box during the last wash cycle, eliminating the need for the user to worry about the deterioration or bacterial growth of residual detergent.

[0088] Example 2

[0089] As shown in Figures 1 to 5, this embodiment provides a control method for the washing machine dispensing system as described in Example 1, which at least includes: detecting the amount of detergent stored in the built-in liquid storage box to obtain the internal liquid storage volume; if the internal liquid storage volume is less than the internal set volume, controlling the outflow of the detergent stored in the built-in liquid storage box, and turning on the dispensing pump 302 to allow the liquid storage box 301 to deliver detergent or a mixed detergent water flow to the dispensing module. The difference from the internal set volume in Example 1 is that the internal set volume described in this embodiment is the amount of detergent dispensed by the washing machine for one wash operation. In one possible embodiment, the internal set volume is derived based on the set value of the washing program built into the washing machine. In another possible embodiment, through a big data survey of the internal set volume, it was found that during the dispensing process of the washing machine, a single dispense of 10 grams of detergent accounts for more than half of the total dispensed situation, so the internal set volume is set to 10 grams.

[0090] In the above solution, when the detergent stored in the built-in liquid storage box in the washing machine is not enough to support the last washing action, the detergent stored in the built-in liquid storage box and the detergent or mixed detergent water flow of the external dispensing device are simultaneously input into the dispensing module of the washing machine to ensure that there is no detergent residue in the built-in liquid storage box.

[0091] In this embodiment, the amount of detergent in the liquid storage box 301 is detected to obtain the external liquid storage amount. If the internal liquid storage amount is less than the internal set amount, and the external liquid storage amount is greater than the external set amount, the detergent stored in the internal liquid storage box is controlled to flow out and the dispensing pump 302 is turned on. This ensures that the detergent stored in the external dispensing device is sufficient for washing.

[0092] In this embodiment, if the internal liquid storage volume is less than the internal set volume, the washing machine sends a liquid delivery request signal to the external dispensing device and controls the flow of detergent stored in the internal liquid storage box. After receiving the liquid delivery request signal, if the external dispensing device determines that the external liquid storage volume is greater than the external set volume, the external dispensing device controls dispensing pump 302 to turn on for a set period of time and then turn off dispensing pump 302. This further enables the detergent stored in the internal liquid storage box and the detergent or mixed detergent from the external dispensing device to flow simultaneously through the dispensing module of the washing machine and into drum assembly 101. In this embodiment, if the external dispensing device receives the liquid delivery request signal and determines that the external liquid storage volume is less than or equal to the external set volume, a liquid refill prompt is issued through the external dispensing device and / or the washing machine.

[0093] In this embodiment, the washing machine is provided with a dosage alarm indicator, and the refill prompt includes turning on the dosage alarm indicator. The control method includes: upon receiving a liquid delivery request signal, if the external dispensing device determines that the external liquid storage amount is less than or equal to the external set amount, sending a dosage alarm signal to the washing machine, continuously detecting the amount of detergent stored in the liquid storage box 301 to obtain the real-time external liquid storage amount, and if the external liquid storage amount is greater than the external set amount, sending a release alarm signal to the washing machine; upon receiving the dosage alarm signal, the washing machine controls the dosage alarm indicator to turn on; and upon receiving the release alarm signal, the washing machine controls the dosage alarm indicator to turn off. This facilitates the user to know when to refill the external dispensing device with detergent through the washing machine's alarm indicator. The specific control process of this embodiment is shown in Figure 5, which includes: before the washing machine is started and the washing action is performed, the liquid level of the detergent in the built-in liquid storage box is detected to obtain the internal liquid storage volume, and it is determined whether the internal liquid storage volume is less than one tenth of the maximum liquid storage volume of the built-in liquid storage box. If not, the detergent in the built-in liquid storage box is controlled to flow into the built-in distribution box of the dispensing module. If so, the washing machine sends a liquid delivery request signal to the external dispensing device via Bluetooth; after the external dispensing device receives the liquid delivery request signal, it detects the liquid level of the detergent in the liquid storage box 301, obtains the external liquid storage volume, and determines whether the external liquid storage volume is greater than one tenth of the maximum liquid storage volume of the liquid storage box 301. If not, the user is prompted to replenish the liquid of the external dispensing device. If so, the external dispensing device controls to start the dispensing pump 302 to draw the water flow of detergent or mixed detergent into the dispensing module, and controls the detergent stored in the built-in liquid storage box to flow into the built-in distribution box of the dispensing module; the set time is made longer than the outflow time of the water flow of detergent or mixed detergent dispensed by the external dispensing device into the washing machine. When the dispensing pump 302 is turned on for the set time, the built-in distribution box of the dispensing module stops flowing with liquid, and the dispensing module is controlled to be connected with the drum assembly 101, and automatic dispensing is started, so that the water flow of mixed detergent enters the drum assembly 101 for washing clothes.

[0094] Example 3

[0095] As shown in Figures 1 to 7, this embodiment provides a control method for a washing machine dispensing system. The difference between the washing machine dispensing system described in this embodiment and those of the first and second embodiments is that (as shown in Figure 7), an external dispensing device can dispense its stored detergent directly into the drum assembly 101 without passing through the dispensing module of the washing machine. The difference between the control method described in this embodiment and that of the second embodiment is that if the internal liquid storage volume is less than the internal set volume, the dispensing pump 302 is controlled to be activated, causing the liquid storage box 301 to deliver a flow of mixed detergent to the drum assembly 101. Furthermore, as shown in Figure 6, the specific control flow of this embodiment differs from that of the second embodiment in that after receiving a liquid delivery request signal, the external dispensing device detects the detergent liquid level in the liquid storage box 301, obtains the external liquid storage volume, and determines whether the external liquid storage volume is greater than one-tenth of the maximum liquid storage volume of the liquid storage box 301. If so, the external dispensing device activates the dispensing pump 302 to pump the mixed detergent into the drum assembly 101.

[0096] Example 4

[0097] As shown in Figures 1 to 11, this embodiment provides the specific internal structure of the washing machine and external dispensing device described in Example 1. The difference between the washing machine dispensing system described in this embodiment and Examples 1 and 2 is that the external dispensing device can generate a water flow mixed with detergent and directly dispense this water flow into the drum assembly without passing through the dispensing module of the washing machine. The washing machine dispensing system described in this embodiment can apply the control method of the washing machine dispensing system described in Example 3. In some possible embodiments, the external dispensing device can be installed on the washing machine or on an additional device of the washing machine, such as the washing machine base 5, as long as the external dispensing device can dispense the detergent stored therein into the drum assembly of the washing machine. The washing machine can be a drum washing machine or a pulsator washing machine. This embodiment specifically uses a drum washing machine as an example for description.

[0098] The washing machine includes a washing machine body 1 and a drum assembly 101 installed in the washing machine body 1. One end of the drum assembly 101 is provided with a drum opening for taking clothes in and out, and the other end is closed to form a drum bottom. Preferably, the inner drum opening faces the front side of the washing machine to facilitate users to take clothes in and out. A clothing loading port is provided on the front panel of the washing machine body 1. The clothing loading port is coaxially opened with the drum opening to form a channel for putting clothes into the drum assembly 101 or taking clothes out of the drum assembly 101. The drum assembly 101 is installed in the washing machine body 1 horizontally or gradually tilted downward from the drum opening to the drum bottom. The drum bottom of the drum assembly 101 is connected to the drive motor via an axis, so that the drum assembly 101 can rotate around its own axis under the drive motor.

[0099] In the embodiment of the present invention, the drum assembly 101 can be the inner drum of an existing drum washing machine. An outer drum can be further mounted on the outside of the inner drum. The inner drum can be rotatably mounted in the outer drum, with the outer drum opening and the inner drum opening facing the same side. The outer drum is connected to the washing machine body 1 via shock-absorbing rods, hanging springs and other shock-absorbing components to achieve the installation of the inner drum in the washing machine body 1 in a manner that the inner drum can be installed ...

[0100] In this embodiment, the washing machine body 1 is further provided with a built-in dispensing module, which is in communication with the drum assembly 101 within the washing machine body 1. The dispensing module can be a water inlet assembly that requires the user to manually add detergent before each wash, or it can be an automatic dispensing module. This embodiment uses the automatic dispensing module within the washing machine body 1 as an example for discussion.

[0101] Specifically, the built-in dispensing module includes a built-in dispensing pump and a built-in dispensing box. The built-in liquid reservoir stores a certain amount of detergent. The built-in dispensing pump is located between the built-in liquid reservoir and the built-in dispensing box and is used to extract detergent from the built-in liquid reservoir and squeeze it into the built-in dispensing box. The built-in dispensing box is connected to the water inlet pipeline. The incoming water flow impacts the detergent dispensed into the built-in dispensing box, diluting the detergent before flushing it into the drum assembly 101.

[0102] Preferably, the built-in liquid storage box includes multiple boxes for storing the same or different types of detergents, and each built-in liquid storage box is connected to the built-in distribution box through a built-in delivery pump, or multiple built-in liquid storage boxes are connected to a built-in delivery pump through a third switching valve, that is, multiple built-in liquid storage boxes can be set to share a built-in delivery pump and selectively connected to the distribution box 303 to reduce costs.

[0103] As shown in FIG4 , in this embodiment, an external dispensing device is further provided on the side of the washing machine. The external dispensing device includes a liquid storage box 301, a dispensing pump 302, and a distribution box 303. The liquid storage box 301 and the distribution box 303 are connected via the dispensing pump 302. The dispensing pump 302 can extract the detergent stored in the liquid storage box 301 and squeeze it into the distribution box 303. The distribution box 303 of the external dispensing device is connected to the water inlet pipe of the washing machine. The inlet water flows through the distribution box 303 and flushes the detergent temporarily stored therein into the drum assembly 101 of the washing machine, completing the dispensing of the detergent.

[0104] In this embodiment, by providing an external dispensing device, the washing machine can store a certain type and weight of detergent on the basis of storing detergent in the built-in dispensing module. The type of detergent stored in the external dispensing device can be the same as the type of detergent stored in the built-in dispensing module, or it can be different from the type of detergent stored in the built-in dispensing module. During the operation of the washing machine, the types of detergents that can be automatically dispensed and the amount of detergent that can be stored are expanded, thereby improving the user experience.

[0105] Preferably, in this embodiment, the liquid storage box 301 includes multiple liquid storage boxes for storing the same or different types of detergents, each liquid storage box 301 is connected to the distribution box 303 via a dispensing pump 302, or multiple liquid storage boxes 301 are connected to a dispensing pump 302 via a second switching valve, and are connected to the distribution box 303 via the dispensing pump 302. The external dispensing device can control any one or more liquid storage boxes 301 to communicate with the dispensing pump 302 by controlling the second switching valve, thereby dispensing one or more detergents into the distribution box 303. Further preferably, in this embodiment, each time the dispensing pump 302 is operated, it is connected to only one liquid storage box 301 via the second switching valve, thereby ensuring the dispensing accuracy of various detergents and improving the cleaning effect of the washing machine. Preferably, in this embodiment, the built-in dispensing module in the washing machine body 1 and the external dispensing device are connected in series or in parallel. Specifically, when the washing machine body 1 has only one water inlet, the built-in dispensing module in the washing machine body 1 and the external dispensing device of the washing machine are connected in series. The water inlet pipe of the washing machine is connected to an external dispensing device and a built-in dispensing module in sequence, and the external dispensing device and / or the built-in dispensing module selectively dispense detergent into the inlet water flow in the water inlet pipe.

[0106] In this embodiment, the water inlet pipeline is connected in sequence to the distribution box 303 of the external dispensing device, the water inlet, and the built-in distribution box of the built-in dispensing module, that is, the distribution box 303 and the built-in distribution box are arranged in sequence on the water inlet pipeline, and the inlet water flows through the distribution box 303 and the built-in distribution box in sequence. During the operation of the washing machine, the dispensing pump 302 of the external dispensing device and / or the built-in dispensing pump of the built-in dispensing module are operated to dispense detergent into the distribution box 303 and / or the built-in distribution box, and the detergent in the distribution box 303 and / or the built-in distribution box is flushed into the drum assembly 101 through the inlet water flow. When two water inlets are provided on the washing machine, the external dispensing device can be set to be connected in series with the built-in dispensing module in the washing machine body 1, or it can be set to be connected in parallel.

[0107] In this embodiment, the water inlet includes a first water inlet 102 and a second water inlet 103. The first water inlet 102 sequentially connects the built-in dispensing module and the drum assembly 101 in the washing machine body 1. One end of the second water inlet 103 connects to the output end 305 of the external dispensing device, and the other end connects to the drum assembly 101. When the water inlet pipe is configured to connect to the first water inlet 102 and the input end 304 of the external dispensing device, respectively, the built-in dispensing module and the external dispensing device are connected in parallel. When the water inlet pipe is configured to connect to the external dispensing device and one of the first water inlet 102, the built-in dispensing module and the external dispensing device are connected in series. Preferably, in this embodiment, a first switching valve is provided on the outside of the washing machine, and the water source is selectively connected to the first water inlet 102 and / or the input end 304 of the external dispensing device through the first switching valve. The first switching valve includes at least a first interface connected to the tap water pipeline, a second interface for connecting to the first water inlet 102, and a third interface for connecting to the input end 304 of the external delivery device. By moving the valve core of the first switching valve, the tap water pipeline can be controlled to be connected to the first water inlet 102 and / or the input end 304 of the external delivery device.

[0108] In this embodiment, the external dispensing device can be provided as one or more. If there is one external dispensing device, it can be installed on any side of the washing machine body 1, as long as it can ensure that the external dispensing device can communicate with the washing machine's water inlet pipe. If there are multiple external dispensing devices, the multiple external dispensing devices can be installed on the same side of the washing machine body 1, or on different sides of the washing machine body 1. Preferably, the external dispensing device can be attached to the side wall of the washing machine body 1, or installed on the top of the washing machine body 1, or installed on the bottom of the washing machine body 1 to increase the height of the washing machine body 1. This embodiment is discussed using the example of the external dispensing device being installed below the washing machine body 1.

[0109] In this embodiment, a base 2 is provided at the bottom of the washing machine body 1. The shape of the base 2 matches the shape of the bottom of the washing machine body 1. The base 2 can raise the overall height of the washing machine, thereby raising the laundry loading port of the washing machine, making it more convenient for loading and unloading clothes. The external loading device is disposed within the base 2, and the base 2 is detachably mounted below the washing machine body 1.

[0110] Specifically, a first connector 2031 for connecting to a water source and a second connector 2032 for connecting to the water inlet of a washing machine are provided on the side wall of the base 2. One end of the first connector 2031 and the second connector 2032 extend to the interior of the base 2 and are respectively connected to the input end 304 and the output end 305 of the external dispensing device. The other ends of the first connector 2031 and the second connector 2032 at least partially extend to the exterior of the base 2 and are respectively used to connect to the water source and the water inlet of the washing machine. Preferably, the pipelines provided on the exterior of the base 2 are detachably connected to the first connector 2031 and the second connector 2032. In this embodiment, the pipelines on the exterior of the base 2 can be plug-in connected to the first connector 2031 and the second connector 2032, or can be threaded connected, as long as the sealing between the pipelines and the first connector 2031 and the second connector 2032 is ensured.

[0111] Preferably, in this embodiment, the peripheral wall of the base 2 is flush with the peripheral wall of the washing machine body 1, and the first connector 2031 and the second connector 2032 are located on the rear side of the base 2, thereby improving the overall aesthetics of the washing machine. Preferably, in this embodiment, a power unit is provided between the external dispensing device and the washing machine body 1. The power unit is provided between the output end 305 of the external dispensing device and the water inlet of the washing machine body 1 to accelerate the water inlet speed of the washing machine.

[0112] In this embodiment, the power unit is installed within the base 2, positioned between the output end 305 of the external delivery device and the second connector 2032. Specifically, it can be configured as a pump assembly or a negative pressure module such as a venturi tube. Preferably, in this embodiment, a one-way valve is also provided between the first connector 2031 and the input end 304 of the external delivery device.

[0113] In this embodiment, the base 2 is also provided with a printed circuit board (PCB) for controlling the operation of the external dispensing device and interconnected with the washing machine's control computer board. Specifically, the PCB is electrically connected to the dispensing pump 302, the second switching valve, the power unit, and the liquid level sensor within the liquid reservoir 301. The PCB is electrically connected to the washing machine's control computer board via an IPC cable 205. The two ends of the IPC cable 205 are pluggable connections to the base 2 and the washing machine body 1, respectively. This allows the washing machine's control computer board to control the PCB, thereby controlling the external dispensing device to automatically dispense liquids. In this embodiment, the base 2 is also provided with a power board for powering the various electrical components within the base 2. The power board is connected to the washing machine's built-in power board, which in turn powers the power board within the base 2, and thus the various electrical components within the base 2. This allows the washing machine to be powered by a single power plug even after the base 2 is installed, improving user experience. Specifically, the power board in the base 2 is electrically connected to the PCB board in the base 2, the dosing pump 302, the second switching valve, the power device, and the liquid level sensor.

[0114] Example 5

[0115] As shown in Figures 1 to 11, this embodiment provides an external dispensing device as described in Examples 1 to 4. The external dispensing device is a washing machine base 2. The washing machine base 2 is installed below the washing machine and includes a base body 201 and a drawer 202. The base body 201 is adapted to the shape of the bottom of the washing machine. One side of the base body 201 is provided with an opening, the shape of the opening being adapted to the drawer 202. The drawer 202 is retractable from the opening and is arranged within the base body 201. By providing the base 2, the height of the washing machine can be raised to a certain extent, making it easier for users to put and take clothes in and out. At the same time, it can also provide additional storage space for the washing machine, facilitating the storage of items such as laundry liquid and laundry powder. In this embodiment, the opening can be provided on either side of the washing machine base 2. Preferably, the opening is provided on the front side of the washing machine base 2 to facilitate the user to pull out the drawer 202. Of course, it can also be provided on the left, right, or back side of the base 2, and can be adjusted according to the actual needs of the user. This embodiment uses the opening on the front side of the base 2 as an example for description.

[0116] The washing machine base 2 can be applied to a drum washing machine, a pulsator washing machine, or a clothes dryer with a washing function. This embodiment is described by taking a drum washing machine as an example. In this embodiment, the drawer 202 includes a panel 2021 and a storage portion 2022. The shape of the panel 2021 is adapted to the shape of the front side of the base body 201. The storage portion 2022 is a groove-shaped groove with a notch facing upward. The front end of the storage portion 2022 is connected to the inner middle part of the panel 2021. The left and right sides of the storage portion 2022 are connected to the left and right inner walls of the base body 201 through slide rails and slide together. When the drawer 202 is pushed in, the panel 2021 abuts against the front end of the base body 201. Preferably, in this embodiment, after the drawer 202 is pushed in, the front side of the panel 2021 is coplanar with the front side of the washing machine, thereby improving the integrity and aesthetics of the washing machine.

[0117] In this embodiment, an external dispensing module is installed within the base 2, and the output end 305 of the external dispensing module is connected to the drum assembly 101 of the washing machine. By installing the external dispensing module within the base 2 and connecting the output end 305 of the external dispensing module to the drum assembly 101 of the washing machine, the washing machine can add an automatic dispensing function to washing machines without a built-in dispensing module by installing the base 2, and expand the types and weights of detergents that can be stored in washing machines with a built-in dispensing module, eliminating the need for users to frequently add detergent to the washing machine, thereby improving the user experience.

[0118] In this embodiment, the external dispensing module is specifically installed on the drawer 202 of the base 2, and includes a liquid storage box 301 for storing detergent and a dispensing pump 302 for extracting detergent. The external dispensing module can directly dispense detergent into the drum assembly 101, or it can be dispensed into the water inlet pipe, so that the detergent is mixed with the incoming water flow and then dispensed into the drum assembly 101. In this embodiment, the internal dispensing module is used to dispense detergent into the incoming water flow as an example. In this embodiment, the liquid storage box 301 is detachably installed inside the storage portion 2022, and the dispensing pump 302 of the external dispensing module is installed outside the storage portion 2022. By installing the liquid storage box 301 in the drawer 202 of the base 2 and arranging the liquid storage box 301 to be detachably installed in the storage portion 2022 of the drawer 202, when the detergent in the liquid storage box 301 is used up, the user can first take out the liquid storage box 301 and then add detergent to the liquid storage box 301, thereby reducing the difficulty of the user filling the liquid storage box 301 with detergent and improving the user's usage experience.

[0119] In this embodiment, the liquid storage box 301 is positioned along the direction in which the drawer 202 is pulled out. The length of the liquid storage box 301 is the same as the distance between the front and rear inner walls of the storage portion 2022. The front and rear ends of the liquid storage box 301 are respectively aligned with the front and rear inner walls of the storage portion 2022. Preferably, the left and right side walls of the liquid storage box 301 can be aligned with the left and right inner walls of the storage portion 2022, that is, the liquid storage box 301 occupies the entire interior space of the storage portion 2022 to ensure the storage capacity of detergent. Alternatively, the liquid storage box 301 can only occupy a portion of the interior space of the storage portion 2022, leaving a certain amount of space in the storage portion 2022 for storing other items. In this embodiment, the reserved space in the storage portion 2022 can be provided on the left side, right side, or both sides of the liquid storage box 301. That is, the liquid storage box 301 can be provided on the right side, right side, or center of the storage portion 2022, as long as the storage portion 2022 can still store other items.

[0120] In this embodiment, the liquid storage box 301 can be provided in plurality, each used to store the same or different types of detergents. The plurality of liquid storage boxes 301 can be arranged side by side inside the storage portion 2022 to fill the internal space of the storage portion 2022. Reserved space can also be provided on the left and / or right side of the plurality of liquid storage boxes 301 arranged side by side for storing other sundries.

[0121] Preferably, the base 2 can be equipped with multiple liquid storage boxes 301 to fill the internal space of the storage part 2022. When the storage part 2022 needs to be used to store other sundries, one or more liquid storage boxes 301 can be selectively removed to facilitate users to make adjustments according to actual needs.

[0122] In this embodiment, the delivery pump 302 of the external delivery module is arranged at the end of the storage part 2022 away from the panel 2021, that is, the delivery pump 302 is installed on the rear side of the storage part 2022, and the delivery pump 302 is connected to the liquid storage box 301 in the storage part 2022 through the delivery pipeline 212.

[0123] Specifically, one end of the dispensing line 212 is connected to the dispensing pump 302, and the other end passes through the rear side wall of the storage portion 2022 to communicate with the liquid storage box 301 within the storage portion 2022. Preferably, one end of the dispensing line 212 is connected to the dispensing pump 302, and the other end extends from the bottom of the rear side wall of the storage portion 2022 through the rear side wall of the storage portion 2022 into the storage portion 2022, and bends upward. The bottle mouth 3015 of the liquid storage box 301 is positioned downward and corresponds to the position of the dispensing line 212. The bottle mouth 3015 of the liquid storage box 301 is equipped with an on-off valve that cooperates with the dispensing line 212. When the liquid storage box 301 is placed from top to bottom in the storage portion 2022, the end of the dispensing line 212 presses against the valve core of the on-off valve, opening it and establishing communication between the liquid storage box 301 and the dispensing pump 302.

[0124] In this embodiment, an on-off valve is provided in the bottle mouth 3015 of the liquid storage box 301, and the on-off valve includes a drainage channel, and a piston for opening or closing the drainage channel is provided in the drainage channel. A connecting structure is provided at the end of the delivery pipeline 212, and the connecting structure can be provided as a protruding structure, which can extend into the bottle mouth 3015 of the liquid storage box 301 and cooperate with the piston. The protruding structure pushes the piston open, thereby opening the on-off valve. Preferably, the connecting structure is provided at the end of the delivery pipeline 212, and the on-off valve is opened by pushing the piston. A sealing element is provided in the bottle mouth 3015 of the liquid storage box 301 or the drainage channel of the on-off valve, for sealing the connection between the bottle mouth 3015 of the liquid storage box 301 and the delivery pipeline 212. Preferably, in this embodiment, the storage portion 2022 further includes a connecting groove 4 with an upwardly facing notch that matches the shape of the bottle mouth 3015 of the liquid storage box 301. The end of the dispensing pipe 212, away from the dispensing pump 302, extends upward through the bottom of the connecting groove 4. When the liquid storage box 301 is installed, the bottle mouth 3015 of the liquid storage box 301 is embedded in the connecting groove 4. This not only improves the sealing effect of the bottle mouth 3015, but also improves the positioning effect and installation stability of the liquid storage box 301.

[0125] Preferably, in this embodiment, the connecting slot 4 is disposed on the rear side of the storage portion 2022, and the bottle opening 3015 is disposed at the rear end of the liquid storage box 301. This prevents the connecting slot 4 from obstructing the user's ability to insert other items after the liquid storage box 301 is removed, thereby improving user experience. The bottom wall of the liquid storage box 301 is configured as a sloped surface sloping downward from front to back. A suction tube 3014 is also disposed within the liquid storage box 301, extending from the bottle opening 3015 toward the bottom of the liquid storage box 301. The end of the suction tube 3014, away from the bottle opening 3015, extends to the very bottom of the liquid storage box 301.

[0126] Preferably, in this embodiment, the suction tube 3014 is configured as a hard tube, which can be a glass tube or a plastic tube. The end of the suction tube 3014 away from the bottle mouth 3015 abuts the inner wall of the bottom of the liquid storage box 301. The end of the suction tube 3014 is configured in a concave-convex shape, so that detergent enters the suction tube 3014 through the notch at the end of the suction tube 3014, ensuring suction force and improving the stability of the installation of the suction tube 3014. Further preferably, in this embodiment, a downwardly concave circular groove is provided on the bottom wall of the liquid storage box 301, and the circular groove corresponds to the end of the suction tube 3014, and the end of the suction tube 3014 abuts the bottom of the circular groove.

[0127] In this embodiment, the top or front end of the liquid storage box 301 is provided with an addition port 3011, through which a user can add detergent to the liquid storage box 301. That is, the bottle opening 3015 of the liquid storage box 301 is only used to dispense detergent, and the user does not need to open the bottle opening 3015 during the process of adding detergent, thereby preventing damage to the suction tube 3014 and other structures within the liquid storage box 301. A cover is provided at the addition port 3011 of the liquid storage box 301, which is used to open or close the addition port 3011. The cover can be hinged to the liquid storage box 301 or snap-fitted to the addition port 3011.

[0128] Preferably, in this embodiment, to facilitate user disassembly and assembly of the liquid storage box 301, a press profile is provided on the top of the liquid storage box 301. Specifically, the top of the liquid storage box 301 is provided with a first press profile 3012 that is recessed inward from both sides and extends along the length of the liquid storage box 301. The first press profile 3012 includes vertical surfaces recessed inward from both sides of the liquid storage box 301, as well as a horizontal surface recessed inward from the top of the first press profile 3012. This creates a gap between the top of the liquid storage box 301 and the inner wall of the storage portion 2022, as well as between the tops of two adjacent storage boxes, making it easier for the user to grip. The middle portion of the first press profile 3012 is also provided with a second press profile 3013 that is recessed inward. The inner wall of the second press profile 3013 is configured to be arc-shaped or flat, conforming to the ergonomic handle design and convenient for the user to grip and extract.

[0129] In this embodiment, the second pressure profile 3013 is configured as a strip extending along the length of the liquid storage box 301. The second pressure profile 3013 extends from the middle of the first pressure profile 3012 in an obliquely downward direction inside the liquid storage box 301. The bottom wall of the second pressure profile 3013 is configured in an arc shape, making the liquid storage box 301 more convenient for the user to hold. In this embodiment, the external dispensing device is connected to the water inlet pipe of the washing machine to dispense detergent into the inlet water flow of the washing machine. Specifically, the external dispensing module also includes a distribution box 303, one end of which is connected to the water source and constitutes the input end 304 of the external dispensing module, and the other end of the distribution box 303 is connected to the water inlet of the washing machine and constitutes the output end 305 of the external dispensing module. The dispensing pump 302 is connected to the middle of the distribution box 303 and dispenses detergent into the distribution box 303. The inlet water flows through the distribution box 303, flushing the detergent in the distribution box 303 into the drum assembly 101.

[0130] Preferably, the chamber of the dispensing box 303 is provided with water retaining ribs 30310 extending from the left and right side walls of the dispensing box 303 toward the middle of the dispensing box 303. The water retaining ribs 30310 on the left and right sides are arranged in a staggered manner to improve the dissolution efficiency of the detergent and prevent damage to the clothes caused by direct contact of excessively concentrated detergent. In this embodiment, the dispensing box 303 is disposed outside the storage portion 2022. Specifically, the dispensing box 303 is installed on the rear side of the storage portion 2022 and above the dispensing pump 302. The dispensing pump 302 is connected to the dispensing box 303 from the bottom of the dispensing box 303.

[0131] In this embodiment, there are multiple liquid storage boxes 301, each of which is connected to a dispensing pump 302. Each of the dispensing pumps 302 is connected to a distribution box 303. The dispensing pumps 302 draw detergent from the liquid storage box 301 and squeeze it into the distribution box 303. In this embodiment, each of the multiple dispensing pumps 302 is connected to a single distribution box 303. Alternatively, there are multiple distribution boxes 303, each of which is connected to one or more dispensing pumps 302. Preferably, in this embodiment, the multiple distribution boxes 303 are connected in series and connected to the water inlet pipe of the washing machine.

[0132] In this embodiment, the rear sidewall of the base body 201 is provided with a first connector 2031 and a second connector 2032. One end of the first connector 2031 is connected to a water source, and the other end is connected to the input end 304 of the external dispensing module via a first pipe 2041. One end of the second connector 2032 is connected to the water inlet of the washing machine via a pipe, and the other end is connected to the output end 305 of the external dispensing module. Preferably, to ensure that the drawer 202 can be properly extended, the first and second pipes 2041, 2042 are configured as hoses 204. Both the first and second pipes 2041, 2042 have a margin to allow the drawer 202 to be pulled out. The second connector 2032 is also provided with a valve 209 for opening and closing the second connector 2032. Preferably, this embodiment further includes a folding arm 208. The folding arm 208 is a hard member that is sleeved over the first conduit 2041 and / or the second conduit 2042 and includes a first guide tube and a second guide tube that are hinged to each other, with the angle between the first guide tube and the second guide tube always being greater than or equal to 0° and less than 180°. By providing the folding arm 208 on the first conduit 2041 and / or the second conduit 2042, the normal extension and retraction of the drawer 202 can be ensured while preventing the conduit and circuit 210 from being squeezed during the extension and retraction of the drawer 202, which could cause the external dispensing module to malfunction.

[0133] In this embodiment, each of the first and second guide tubes includes a receiving slot 2082 and a limiting rib 2081. The notches of the receiving slots 2082 of the first and second guide tubes are arranged relative to each other. The first pipeline 2041 and / or the second pipeline 2042 are disposed within the receiving slot 2082. The limiting rib 2081 is disposed at the notch of the receiving slot 2082 to confine the first pipeline 2041 and / or the second pipeline 2042 within the receiving slot 2082. After the folding arm 208 is installed, the first pipeline 2041 and / or the second pipeline 2042 can move axially relative to the folding arm 208, thereby ensuring relative rotation between the first and second guide tubes. Preferably, in this embodiment, the first pipeline 2041 and / or the second pipeline 2042 is fixedly connected to one of the first and second guide tubes and axially movable with the other of the first and second guide tubes, thereby ensuring the reliability of the folding arm 208.

[0134] Preferably, in this embodiment, the first pipeline 2041 and the second pipeline 2042 are arranged in parallel. Specifically, the first guide tube and the second guide tube are each provided with two receiving grooves 2082 arranged in parallel and connected as one body, and the first pipeline 2041 and the second pipeline 2042 are respectively arranged in the two receiving grooves 2082 arranged in parallel with each other, so as to make the pipelines in the base 2 more tidy and prevent the first pipeline 2041 and the second pipeline 2042 from interfering with each other. In this embodiment, the bottom of the receiving groove 2082 can be any shape such as a plane or an arc. Preferably, the bottom of the receiving groove 2082 is set to an arc shape that fits the outer peripheral walls of the first pipeline 2041 and the second pipeline 2042, thereby improving the tightness of the folding arm 208 with the first pipeline 2041 and the second pipeline 2042.

[0135] In other possible embodiments, the first conduit 2041 and the second conduit 2042 may be configured as telescopic tubes, which can automatically extend or shorten as the drawer 202 is pulled out, thereby eliminating the folding arm 208 and simplifying the internal structure of the base 2. Preferably, in this embodiment, a power device is further provided on the rear inner wall of the base body 201. The power device may be a pump assembly. The connector 203 includes a first connector 2031 and a second connector 2032. The pump assembly is provided between the second connector 2032 and the second conduit 2042 and is used to pump the inlet water mixed with detergent in the external dispensing module into the drum assembly 101 of the washing machine.

[0136] Preferably, in this embodiment, the storage portion 2022 is further provided with a water retaining portion. The water retaining portion extends from the top of the sidewall of the storage portion 2022 on the side away from the panel 2021, and has a downwardly curved hem on the end away from the panel 2021. The water retaining portion can shield the dispensing pump 302 and the dispensing box 303 located at the rear of the storage portion 2022, preventing water flowing through the gap between the drawer 202 and the base body 201 from soaking the dispensing pump 302, thereby improving the waterproofness of the device. Furthermore, when the user opens the drawer 202, only the liquid storage box 301 is visible, and the dispensing box 303 and the dispensing pump 302 are not visible, thereby enhancing the user's visual experience. Preferably, in this embodiment, a liquid level sensor is provided in the liquid storage box 301 for real-time detection of the remaining detergent in the liquid storage box 301, and an alarm device is communicatively connected to the liquid level sensor. When it is detected that the detergent level in the liquid storage box 301 is lower than a preset level, the alarm device starts to alarm to remind the user to add detergent.

[0137] In this embodiment, the base body 201 includes a support frame 2011 and a shell covering the outside of the support frame 2011. The overall shape of the support frame 2011 is compatible with the shape of the bottom of the washing machine, and includes a front ring beam, a rear ring beam, and a bottom beam connected therebetween. The front ring beam and the rear ring beam have the same shape, both including a U-shaped beam with an opening facing downward and a connecting beam arranged at the opening of the U-shaped beam. At least two bottom beams are provided, and the two ends of the bottom beam are respectively connected to the connecting beams of the front ring beam and the rear ring beam to form the support frame 2011. The edges of the front ring beam, the rear ring beam, and the bottom beam are provided with inwardly recessed reinforcement grooves to increase the strength of the support frame 2011 and prevent the support frame 2011 from deforming.

[0138] Preferably, the rear end of the connecting beam of the front ring beam and the front end of the connecting beam of the rear ring beam are respectively provided with an upwardly concave profile, and the two ends of the bottom beam are respectively installed at the profiles of the connecting beams on the front and rear sides. The shell includes a first shell coated on the top and left and right sides of the support frame 2011, a second shell arranged on the rear side of the rear ring beam, and a third shell arranged at the bottom of the support frame 2011, and the first shell, and / or the second shell, and / or the third shell are provided with a profile for improving the shell strength. Preferably, in this embodiment, the slide rail between the drawer 202 and the base body 201 is connected to the support frame 2011. Specifically, the front and rear ends of the slide rail are respectively connected to the front ring beam and the rear ring beam.

[0139] In this embodiment, mounting grooves 207 corresponding to the support feet of the washing machine are provided at the four corners of the top of the base body 201, and the four support feet at the bottom of the washing machine are respectively embedded in the mounting grooves 207 on the base body 201. Preferably, the mounting grooves 207 are all provided on the support frame 2011. The bottom of the base body 201 is also provided with feet 206 and rollers for supporting the base 2. There are four feet 206, which are respectively installed at the four corners of the bottom of the support frame 2011; there are at least four rollers, which are respectively installed on the bottom of the support frame 2011 in a flip-able manner through brackets, and the multiple rollers are evenly arranged along the circumference. The rollers include a first position where the support height is greater than the height of the feet 206, and a second position where the support height is less than the height of the feet 206. In this embodiment, the bracket is hingedly connected to the bottom of the support frame 2011. When the bracket is flipped to a first position, the rollers contact the ground, and the feet 206 are separated from the ground. When the bracket is flipped to a second position, the rollers are retracted, at which point the rollers are separated from the ground and the feet 206 contact the ground. Preferably, the rollers include at least two rows extending along the direction of drawer 202 withdrawal, and the brackets of each row of rollers flip synchronously. Specifically, the bottom of the bracket is used to mount the rollers, the middle portion is hingedly connected to the support frame 2011, and the top portion is transmission-connected to the brackets in the same row via a linkage rod.

[0140] In this embodiment, the bottom beam of the frame is configured as a U-shape, with the opening of the bottom beam facing downward, and the rollers are mounted within the bottom beam. In this embodiment, the bottom beams are provided in two pieces, one on each left and right side of the bottom of the support frame 2011, and the rollers are arranged in two rows, with two rollers in each row, mounted at the front and rear ends of the two bottom beams. The brackets are configured as triangular shapes, with the rollers mounted at the bottom of the brackets via a first rotating shaft. The middle portion of the brackets is mounted between the left and right sidewalls of the U-shaped bottom beam via a second rotating shaft. Each bottom beam is provided with a linkage rod, and the top of the brackets is hinged to the linkage rod via a third rotating shaft. This allows one bracket in the same row to flip, which in turn drives the other bracket in the same row to flip, causing the rollers in the same row to move synchronously. Preferably, in this embodiment, the sidewalls of the bottom beams are provided with guide grooves that match the movement path of the bracket tops, and the top sidewalls of the brackets are provided with positioning blocks that slide in conjunction with the guide grooves. When the brackets flip to the first position, the positioning blocks abut against the first end of the guide grooves, and when the brackets flip to the second position, the positioning blocks abut against the second end of the guide grooves.

[0141] Example 6

[0142] The present invention provides a control method for a washing machine dispensing system, which obtains the time interval between the end of the last wash and the start of the next wash on the washing device. If the time interval is greater than the set time, a detergent emptying procedure is executed before the next wash starts. The dispensing box includes the built-in liquid storage box and liquid storage box 301 in Example 1.

[0143] In an embodiment of the present invention, the above-described arrangement allows the detergent that has been in the dispenser for a long time and has reduced activity to be emptied before the next washing cycle of the washing machine begins, allowing the dispenser to be refilled with fresh, more active detergent, thereby avoiding the situation in which the washing effect on clothes is reduced due to reduced detergent activity, thereby improving the user experience. The washing machine can be a washing machine. When the washing machine is a drum washing machine, the drum washing machine includes a housing, an outer drum, and an inner drum rotatably disposed within the outer drum. During washing, the inner drum serves as a water storage drum or the outer drum serves as a water storage drum. The dispenser is disposed within the housing for internal dispensing, and is connected to the water storage drum via a pipeline. Alternatively, the dispenser is disposed outside the housing for external dispensing, and is connected to the water storage drum via a pipeline that runs through the housing.

[0144] A dispenser box refers to a device for storing detergents. When a drum washing machine is running, the corresponding detergent in the dispenser box can be dispensed into the washing tub through an automatic dispensing device to wash clothes. Detergents can include laundry detergent, softener, special agent and other detergents needed in the clothing washing process. Usually, there can be multiple slots in the dispenser box, each of which is used to store a corresponding detergent. For example, there are two slots in the dispenser box, namely a first slot and a second slot, wherein the first slot is used to store laundry detergent and the second slot is used to store softener. Then, during the washing stage of the clothes, the washing machine dispenses the laundry detergent in the first slot into the washing tub, and during the rinsing stage of the clothes, the softener in the second slot is dispensed into the washing tub. Emptying the dispenser box refers to emptying the detergent in each slot in the dispenser box. For example, when there is laundry detergent remaining in the first slot and rinse agent remaining in the second slot, the laundry detergent in the first slot is emptied first, and then the softener in the second slot is emptied.

[0145] If the time interval between the end of the last wash cycle and the start of the next wash cycle is less than or equal to the set time, the washing process will proceed directly without executing the emptying process before the next wash cycle begins. If the time interval is greater than the set time, the washing process will first check whether there is any clothing in the washing machine before executing the emptying process. If there is any clothing, the clothing will be removed from the washing machine before the emptying process is executed.

[0146] In an embodiment of the present invention, the washing device is provided with a water inlet valve and a drain valve, and the emptying procedure includes: opening the water inlet valve and the drain valve, flushing the detergent in the delivery box into the washing device through the water inlet valve to form a mixed liquid, and discharging the mixed liquid to the outside through the drain valve.

[0147] In an embodiment of the present invention, a water drum of a washing machine is provided with a water inlet pipe and a drain pipe, the water inlet pipe is provided with a water inlet valve, the drain pipe is provided with a drain valve, a liquid outlet of a dispensing box is provided with a liquid outlet pipe, the liquid outlet pipe is provided with a dispensing pump, the liquid outlet of the liquid outlet pipe is connected to the water inlet pipe between the water inlet pipe and the water outlet of the water inlet pipe, and the water outlet of the water inlet pipe is connected to the water drum; during dispensing, the dispensing pump sucks detergent in the dispensing box into the water inlet pipe, and at the same time, water flowing through the water inlet valve flushes the detergent in the water inlet pipe into the water drum to form a mixed liquid;

[0148] In another embodiment of the present invention, the water inlet pipe of the washing machine is connected to the water inlet of the dispensing box, and the liquid outlet of the dispensing box is provided with a liquid outlet pipe, the liquid outlet of the liquid outlet pipe being connected to the water storage drum. During dispensing, the water inlet valve flows through the dispensing box, flushing the detergent in the dispensing box through the liquid outlet pipe into the water storage drum to form a mixed liquid. To accelerate the entry of water and detergent into the water storage drum through the liquid outlet pipe, a dispensing pump can be provided on the liquid outlet pipe. It should be noted that in the above two embodiments, the opening and closing of the water inlet valve and the dispensing pump are synchronized when dispensing detergent.

[0149] In an embodiment of the present invention, whether the detergent in the delivery box has been emptied is determined based on the opening time or the number of times the water inlet valve is opened; when the opening time of the water inlet valve reaches the set opening time or the number of times the water inlet valve is opened reaches the set opening number, it is determined that the detergent in the delivery box has been emptied. After the detergent in the delivery box is emptied, the water inlet valve and the drain valve are closed.

[0150] In the embodiment of the present invention, whether the detergent in the dispenser box is completely emptied is determined by whether the opening time of the water inlet valve reaches the set opening time or the number of times the water inlet valve is opened reaches the set opening number. This can avoid the situation where the water inlet valve is opened for too long or too many times, resulting in wasting water resources, and the detergent is not completely emptied, resulting from the water inlet valve being opened for too short a time or too few times.

[0151] During dispensing, if the water inlet valve is continuously opened, whether the detergent in the dispensing box is completely emptied is judged by whether the opening time of the water inlet valve reaches the set opening time; if the water inlet valve is opened intermittently, whether the detergent in the dispensing box is completely emptied is judged by whether the opening times of the water inlet valve reach the set opening times. When the water inlet valve is opened intermittently, the opening time of the water inlet valve is the same each time.

[0152] In an embodiment of the present invention, at least one of the opening time and number of openings of the water inlet valve, and the opening and closing modes of the water inlet valve and the drain valve is determined according to the remaining amount and / or viscosity of the detergent in the dispenser box.

[0153] In an embodiment of the present invention, the remaining amount and / or viscosity of detergent in the delivery box are different, so the opening time of the water inlet valve, the number of times the water inlet valve is opened, and the opening and closing methods of the water inlet valve and the drain valve are different. Selecting the appropriate opening time of the water inlet valve, the number of times the water inlet valve is opened, and the opening and closing methods of the water inlet valve and the drain valve can reduce water waste and detergent residue in the delivery box or the water storage drum. Generally speaking, the greater the remaining amount of detergent and the greater the viscosity, the more washing water is required to rinse the detergent, and the longer the opening time of the water inlet valve will be, or the more times the water inlet valve will be opened. It should be noted that if the time interval is greater than the set time and the remaining amount of detergent in the delivery box is less than or equal to the set remaining amount, then there is no need to execute the emptying program before the next washing begins, and the washing program will be executed directly.

[0154] When there is residual laundry liquid in the first tank and residual rinse agent in the second tank in the delivery box, the opening time of the water inlet valve is determined by the remaining amount and / or viscosity of the laundry liquid in the first tank and the remaining amount and / or viscosity of the rinse agent in the second tank. For example, the opening time of the water inlet valve obtained according to the remaining amount and / or viscosity of the laundry liquid in the first tank is the first opening time, and the opening time of the water inlet valve obtained according to the remaining amount and / or viscosity of the rinse agent in the second tank is the second opening time. Then, the opening time of the water inlet valve when emptying the detergent in the delivery box is the sum of the first opening time and the second opening time. Similarly, the number of times the water inlet valve is opened is also determined by the remaining amount of laundry liquid in the first tank and the remaining amount of rinse agent in the second tank.

[0155] As one embodiment of the present invention, if the remaining amount of detergent in the dispenser is less than or equal to a set remaining amount and the viscosity of the detergent is less than or equal to a set viscosity, the water inlet valve and the drain valve are opened simultaneously when the emptying procedure is executed. After the water inlet valve is opened for an initial period, the water inlet valve and the drain valve are closed simultaneously. When the remaining amount of detergent in the dispenser is relatively small and the viscosity of the detergent is relatively low, the detergent is easier to rinse and less rinse water is required. In this case, the water inlet valve and the drain valve can be opened simultaneously, allowing water to be flushed while draining, which can speed up the emptying of the detergent while also ensuring a cleaner emptying of the detergent.

[0156] As another embodiment of the present invention, if the remaining amount of detergent in the dispenser is greater than a set remaining amount and the viscosity of the detergent is less than or equal to the set viscosity, the water inlet valve and the drain valve are opened simultaneously when the emptying procedure is executed. After the water inlet valve is opened for a second time greater than the first time, the water inlet valve is first closed, and then the drain valve is closed after the water inlet valve is closed for a third time. If the remaining amount of detergent in the dispenser is relatively large and the viscosity of the detergent is relatively low, the detergent is easily rinsed out, but more rinse water is required. In this case, the water inlet valve and the drain valve can be opened simultaneously, allowing water to be flushed and drained at the same time, but the flushing time will be extended. This can also speed up the emptying of the detergent while also ensuring a more clean emptying of the detergent.

[0157] Since there is a lot of residual detergent, a lot of foam is formed in the water tank. Too much foam will affect the drainage of the drain valve. Therefore, close the water inlet valve for a while and then close the drain valve to allow the mixed liquid in the water tank to be discharged more cleanly.

[0158] As another embodiment of the present invention, if the remaining amount of detergent in the dispenser is greater than a set remaining amount and the viscosity of the detergent is greater than a set viscosity, when executing the emptying procedure, the water inlet valve is opened and the motor of the washing device is controlled to rotate. After the water inlet valve is opened for a fourth time greater than the second time, the water inlet valve is closed, the motor is controlled to stop rotating, and the drain valve is opened to drain the mixed liquid in the washing device before closing the drain valve. The rotation of the motor of the washing device can drive the inner drum of the washing device to rotate, and the rotation of the inner drum can cause the detergent and water to be agitated.

[0159] When there is a lot of detergent remaining in the dispenser and the viscosity of the detergent is relatively high, the detergent is not easy to be rinsed off and more rinse water is required. In this case, when the water inlet valve is opened, the motor is controlled to rotate so that the detergent and water are fully mixed in the water tank and the rinse time is extended. After the rinse is completed, the drain valve is opened again to allow the detergent and water to stay in the water tank for a period of time to be fully mixed. After they are fully mixed, they are discharged. This can also speed up the emptying of the detergent while making the detergent emptied more cleanly.

[0160] Because foam is generated within the water drum during motor rotation, heating the inner drum wall can eliminate the foam within the drum or between the inner and outer drums, while also improving the detergent's solubility in water. The heated inner drum wall heats the foam stirred up by the rotation, increasing the internal pressure of the foam, which then breaks and breaks the foam, eliminating it and preventing overflow.

[0161] During the process of opening the water inlet valve, the inner tube wall is heated and the temperature of the inner tube wall is detected. If the temperature of the inner tube wall is lower than the set temperature, the inner tube wall is heated. When the temperature of the inner tube wall is equal to the set temperature, the heating of the inner tube wall is stopped to keep the inner tube wall at a certain temperature to heat the inlet water.

[0162] The heating temperature of the inner drum wall and the motor speed are determined by the viscosity of the detergent. The higher the detergent viscosity, the higher the heating temperature of the inner drum wall and the motor speed. For example, if the detergent viscosity is a first viscosity, the heating temperature of the inner drum wall is the first temperature, and the motor speed is the first speed. If the detergent viscosity is a second viscosity greater than the first viscosity, the heating temperature of the inner drum wall is the second temperature greater than the first temperature, and the motor speed is the second speed greater than the first speed.

[0163] The inner drum wall is heated by providing a heating device on the inner drum wall. The heating device may be an electromagnetic heating device, an infrared heating device, etc. In addition, if the remaining amount of detergent in the dispenser is less than or equal to a set remaining amount and the viscosity of the detergent is greater than the set viscosity, when the emptying procedure is executed, the water inlet valve is opened and the motor of the washing device is controlled to rotate. After the water inlet valve is opened for a fifth time that is greater than the second time and less than the fourth time, the motor is controlled to stop rotating, the drain valve is opened, the mixed liquid in the washing device is drained, and the drain valve is closed.

[0164] After the detergent is emptied, the washing machine can enter standby mode, allowing the user to choose to enter clothing wash mode. If the user wishes to end the emptying process while the washing machine is emptying the dispenser, they can do so by triggering the corresponding operation. In other words, in response to the detergent drawer's end-of-wash trigger operation, the washing machine will end the process and return to standby mode. Furthermore, while the dispenser is emptying, the washing machine's status display area can display an indicator indicating that the dispenser is being cleaned. If a particular dispenser slot is being cleaned, the washing machine's status display area can also display an indicator indicating that the corresponding slot is being cleaned.

[0165] As shown in FIG12 , the specific steps of the control method of the washing equipment of the present invention are as follows:

[0166] S1. Obtain the time interval between the end of the last wash and the start of the next wash on the washing device, and execute step S2;

[0167] S2. Determine whether the time interval is greater than the set time. If so, go to step S3; if not, go to step S9;

[0168] S3, determining whether the remaining amount of detergent is greater than the set minimum remaining amount, if so, executing step S4, if not, executing step S9;

[0169] S4. Determine whether the remaining amount of detergent in the dispenser box is greater than the set remaining amount. If so, proceed to step S5 or S6; if not, proceed to step S7 or S8;

[0170] S5: If the viscosity of the detergent is greater than the set viscosity, the water inlet valve is opened, the motor is controlled to rotate, and after the water inlet valve is opened for the fourth time, the water inlet valve is closed, the motor stops rotating, and the drain valve is opened;

[0171] S6. When the viscosity of the detergent is less than or equal to the set viscosity, the water inlet valve and the drain valve are opened. After the water inlet valve is opened for the second time, the water inlet valve is closed first, and then the drain valve is closed after the water inlet valve is closed.

[0172] S7: When the viscosity of the detergent is greater than the set viscosity, the water inlet valve is opened, the motor rotates, and after the water inlet valve is opened for the fifth time, the water inlet valve is closed, the motor stops rotating, and the drain valve is opened;

[0173] S8: When the viscosity of the detergent is less than or equal to the set viscosity, the water inlet valve and the drain valve are opened. After the water inlet valve is opened for the first time, the water inlet valve and the drain valve are closed at the same time.

[0174] S9. Do not empty the detergent in the dispenser before the next washing.

[0175] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A washing machine delivery system, characterized in that: The washing machine delivery system comprises a washing machine and an external delivery device that can communicate with each other; The washing machine at least comprises a built-in liquid storage box, a dispensing module, a detection module and a processing module, and the external dispensing device at least comprises a liquid storage box and a dispensing pump; The detection module is used to detect the amount of detergent in the built-in liquid storage box to obtain the internal liquid storage amount; The processing module is in communication with the detection module and is used to control the washing machine to send a liquid delivery request signal to the external delivery device according to the received internal liquid storage amount, and control the detergent stored in the built-in liquid storage box to flow into the delivery module; After receiving the liquid delivery request signal, the external delivery device controls the delivery pump to start, so that the liquid storage box delivers detergent or water mixed with detergent to the delivery module through the delivery pump.

2. A washing machine delivery system according to claim 1, characterized in that: The delivery module includes a built-in distribution box connected to the built-in liquid storage box, and the external delivery device also includes a distribution box connected to the liquid storage box; After the detergent is mixed with water in the distribution box, it flows into the built-in distribution box through the delivery pump.

3. A washing machine delivery system according to claim 1 or 2, characterized in that: The external delivery device also includes a detection component; The detection element is used to detect the amount of detergent in the liquid storage box to obtain the external liquid storage amount; The external delivery device controls the delivery pump to start according to the external liquid storage amount.

4. A washing machine delivery system according to claim 3, characterized in that: The washing machine also includes a dosage alarm indicator light; The external dispensing device controls the external dispensing device to send a dosage alarm signal and a release alarm signal to the washing machine according to the external liquid storage amount; The processing module is also used to transmit an electrical signal to the alarm indicator light according to the dosage alarm signal and the alarm release signal received by the washing machine, so as to control the turning on and off of the alarm indicator light.

5. A control method for a washing machine dispensing system according to any one of claims 1 to 4, characterized in that, include: Detect the amount of detergent stored in the built-in liquid storage box to obtain the internal liquid storage amount; If the internal liquid storage volume is less than the internal set volume, the detergent stored in the built-in liquid storage box is controlled to flow out, and the delivery pump is turned on to allow the liquid storage box to deliver detergent or mixed detergent water to the delivery module.

6. A control method for a washing machine delivery system according to claim 5, characterized in that: The internal set amount is the amount of detergent added to the washing machine for one washing action.

7. A control method for a washing machine delivery system according to claim 5 or 6, characterized in that: Detecting the detergent amount in the liquid storage box to obtain the external liquid storage amount; If the internal liquid storage volume is less than the internal set volume, and the external liquid storage volume is greater than the external set volume, the detergent stored in the built-in liquid storage box is controlled to flow out and the dispensing pump is turned on.

8. A control method for a washing machine delivery system according to claim 7, characterized in that: If the internal liquid storage volume is less than the internal set volume, the washing machine sends a liquid delivery request signal to the external delivery device and controls the detergent stored in the built-in liquid storage box to flow out; After the external delivery device receives the liquid delivery request signal, if it is determined that the external liquid storage volume is greater than the external set volume, the external delivery device controls the delivery pump to be turned on for a set period of time and then turns off the delivery pump.

9. A control method for a washing machine delivery system according to claim 8, characterized in that: After the external dispensing device receives the liquid delivery request signal, if it is determined that the external liquid storage amount is less than or equal to the external set amount, a liquid replenishment prompt is issued through the external dispensing device and / or the washing machine.

10. The control method of a washing machine dispensing system according to claim 9, characterized in that, The washing machine is provided with a dosage alarm indicator light, and the liquid replenishment prompt includes turning on the dosage alarm indicator light; The control method comprises: after the external dispensing device receives the liquid delivery request signal, if it is determined that the external liquid storage amount is less than or equal to the external set amount, then after sending a dosage alarm signal to the washing machine, continuously detecting the detergent amount stored in the liquid storage box to obtain the real-time external liquid storage amount, if it is determined that the external liquid storage amount is greater than the external set amount, then sending a release alarm signal to the washing machine; After receiving the dosage alarm signal, the washing machine controls to turn on the dosage alarm indicator light; After receiving the alarm release signal, the washing machine controls to turn off the dosage alarm indicator light.

11. A control method for a washing machine delivery system according to any one of claims 5 to 10, characterized in that: The time interval between the end of the last washing and the start of the next washing of the washing machine is obtained. If the time interval is greater than the set time, a procedure for emptying the detergent in the delivery box is executed before the next washing starts, wherein the delivery box includes a liquid storage box and a built-in liquid storage box.

12. The control method of a washing machine dispensing system according to claim 11, characterized in that, The washing machine is provided with an inlet valve and a drain valve for controlling the water flow. The emptying procedure includes: opening the inlet valve and the drain valve, flushing the detergent in the delivery box into the washing machine through the water inlet valve to form a mixed liquid, and discharging the mixed liquid to the outside through the drain valve.

13. The control method of a washing machine dispensing system according to claim 12, characterized in that, The water inlet valve flushes the detergent in the delivery box in the following ways: the water inlet valve flushes the detergent from the delivery box into the washing machine to form a mixed liquid, or the water inlet valve flushes the detergent in the delivery box into the washing machine to form a mixed liquid during the process of flowing through the delivery box.

14. The control method of a washing machine dispensing system according to claim 13, characterized in that, Judging whether the detergent in the dispenser box has been emptied according to the opening time or number of times the water inlet valve is opened; When the opening time of the water inlet valve reaches the set opening time or the opening times reaches the set opening times, it is determined that the detergent in the delivery box has been emptied. After the detergent in the delivery box is emptied, the water inlet valve and the drain valve are closed.

15. The control method of a washing machine dispensing system according to claim 14, characterized in that, According to the remaining amount and / or viscosity of the detergent in the delivery box, at least one of the opening time and the number of openings of the water inlet valve and the opening and closing methods of the water inlet valve and the drain valve is determined.

16. The control method of a washing machine dispensing system according to claim 15, characterized in that, If the remaining amount of detergent in the dispenser box is less than or equal to the set remaining amount, and the viscosity of the detergent is less than or equal to the set viscosity, the water inlet valve and the drain valve are opened at the same time when the emptying program is executed. After the water inlet valve is opened for the first time, the water inlet valve and the drain valve are closed at the same time.

17. The control method of a washing machine dispensing system according to claim 15, wherein, If the remaining amount of detergent in the dispenser box is greater than the set remaining amount and the viscosity of the detergent is less than or equal to the set viscosity, the water inlet valve and the drain valve are opened at the same time when the emptying program is executed. After the water inlet valve is opened for a second time greater than the first time, the water inlet valve is closed first, and then the drain valve is closed after the water inlet valve is closed for a third time.

18. The control method of a washing machine dispensing system according to claim 15, characterized in that, If the remaining amount of detergent in the dispensing box is greater than the set remaining amount and the viscosity of the detergent is greater than the set viscosity, when the emptying program is executed, the water inlet valve is opened and the motor of the washing machine is controlled to rotate. After the fourth time when the water inlet valve has been opened for more than the second time, the water inlet valve is closed, the motor is controlled to stop rotating, and the drain valve is opened. After the mixed liquid in the washing machine is emptied, the drain valve is closed.

19. The control method of a washing machine dispensing system according to claim 11, wherein, If the time interval is less than or equal to the set time, or if the time interval is greater than the set time and the remaining amount of detergent in the dispensing box is less than or equal to the set minimum remaining amount, the emptying program does not need to be executed before the next laundry starts, and the washing program is directly executed.

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