Negative pressure suction structure, feeding device and washing machine

Abstract

To provide a negative pressure suction structure, a loading device and a washing machine. [Solution] The present invention provides a dispenser and washing machine. The dispenser includes a dispenser case with an internal powder detergent chamber for dispensing powder detergent; a tank that uses the water flow from the automatic dispenser to flush the powder detergent from the powder detergent chamber and form a powder detergent solution; and a water supply channel equipped with a negative pressure suction mechanism that creates negative pressure using the flowing water. The negative pressure suction mechanism is connected to the tank and uses negative pressure to draw the powder detergent solution from the tank into the water supply channel. This configuration allows the water flowing through the separately installed water supply channel to extract the powder detergent solution to be dispensed, achieving the effect of automatically extracting and dispensing the powder detergent solution. This represents a significant technological advancement, allowing the powder detergent solution to be directly sprayed onto clothes in the washing machine tub ("Seika-sen") using a highly concentrated detergent solution.

Description

[Technical Field]

[0001] The present invention relates to the technical field of clothing processing equipment, and more particularly to an automatic dispenser for a washing machine, in particular to a dispenser with a powder detergent automatic dispenser function, and in particular to a negative pressure suction structure applied to the automatic dispenser, and also to a washing machine equipped with the automatic dispenser. [Background technology]

[0002] A conventional washing machine is generally provided with a water receiving tub for storing wash water, a rotatable washing tub installed inside the water receiving tub, and a dehydration hole that connects the inside and outside of the washing tub. As a result, the wash water flowing into the water receiving tub can flow alternately inside and outside the washing tub using the dehydration hole, and the wash water comes into contact with the load to be treated placed in the washing tub, thereby realizing the effect of treating the load using the wash water.

[0003] The additive dosing method for the above-mentioned conventional washing machine is as follows: an additive is dosed into a pipe connected to the washing machine's water receiving tub using an additive dosing device. The added additive then flows into the washing machine's water receiving tub along the pipe. Therefore, the additive dosing method is located inside the washing machine's water receiving tub and outside the washing tub, and cannot directly contact the load placed in the washing tub.

[0004] When the washing machine then executes a wash program, the additives mixed in mix with the wash water flowing into the water receiving tub, and some of the additive-containing wash water flows into the washing tub through the spin hole and comes into contact with the load to be treated in the tub, allowing a small portion of the additives mixed in the wash water to come into contact with the load and act on it. Therefore, the conventional additive dosing method has the problem of low additive use efficiency and additive waste.

[0005] Furthermore, in the conventional additive dispensing method, in order to ensure that the additive dispensed between the water receiving tub and the washing tub comes into contact with the load to be treated in the washing tub, a large amount of water must be poured into the water receiving tub until the water level in the water receiving tub is higher than that of the washing tub. Only then can the wash water flow into the washing tub through the spin hole and the additive come into contact with the load in the washing tub. Therefore, the conventional additive dispensing method also has the problem of requiring too much water for dispensing the additive.

[0006] In addition, conventional additive dispensers generally only have the function of automatically dispensing liquid detergents and are not equipped to dispense solid additives such as powder detergents, so conventional direct ingredient injection washing ("Seika Wash") washing machines cannot perform direct ingredient injection washing ("Seika Wash") on clothes using additives such as solid powder detergents.

[0007] In view of the above, the present invention is proposed. Summary of the Invention [Problem to be solved by the invention]

[0008] <Problem 1 to be solved by the invention> The technical problem to be solved by the present invention is to provide an automatic dispenser that overcomes the drawbacks of the prior art and realizes the object of directly dispensing additives such as powder detergent to the outside through a water supply channel. Another object of the present invention is to provide an automatic dispenser that realizes the object of extracting and dispensing an additive mixture using negative pressure. [Means for solving the problem]

[0009] <Means for solving the problem 1> In order to achieve the above-mentioned object of the invention, the basic concept of the technical idea adopted by the present invention is as follows.

[0010] The present invention provides a dispensing device comprising: a dispensing case having an internal powder detergent chamber for dispensing powder detergent; a tank that uses a water intake flow from an automatic dispensing device to draw the powder detergent from the powder detergent chamber into the tank to form a powder detergent solution; and a water supply channel equipped with a negative pressure suction mechanism that uses the flowing water to create negative pressure, the negative pressure suction mechanism communicating with the tank to draw the powder detergent solution from the tank into the water supply channel using the negative pressure.

[0011] Furthermore, the negative pressure suction structure is a Venturi tube attached to the water supply channel, and the Venturi tube has a reduced diameter section and an enlarged diameter section arranged in sequence, and a negative pressure port connecting the inside and outside of the channel is provided at the connection point between the reduced diameter section and the enlarged diameter section, and the negative pressure port is connected to a powder detergent solution outlet installed at the bottom of the tank via a suction channel.

[0012] Furthermore, a water intake structure is provided on the top of the tank and communicates with the tank water supply channel. The water intake structure has a water outlet opening toward the powder detergent chamber of the dispenser case, and uses a flow of water to flush the powder detergent from the powder detergent chamber into the tank. Preferably, the water outlet of the water intake structure opens downward and is located above the upper opening of the powder detergent chamber.

[0013] Furthermore, a partition rib is provided at the bottom of the tank to divide the lower part of the tank into a first water outlet tank and a second water outlet tank. A powder detergent solution outlet and a main wash outlet are provided at the bottom of the first water outlet tank and the second water outlet tank, respectively. The powder detergent solution outlet communicates with the negative pressure port of the negative pressure suction structure via a liquid suction pipe, and the main wash outlet communicates with the water supply channel of the automatic dispensing device.

[0014] Furthermore, the first and second water outlet tanks are arranged in front-to-back order, and the first water outlet tank is connected to the outlet of the powder detergent chamber so that the powder detergent flows in together with the water intake. Preferably, the bottom of the first water outlet tank has a slope that is inclined so that the powder detergent solution in the first water outlet tank can be gathered at the powder detergent solution outlet, and is used to guide the powder detergent solution in the first water outlet tank to flow to the powder detergent solution outlet.

[0015] The tank further includes at least one input chamber for storing detergent, and a water intake structure installed on the top of the tank is used to input the detergent in the input chamber into the second water outlet tank of the tank. Preferably, the bottom of the second water outlet tank has a slope that is inclined so that the liquid detergent water gathers at the liquid detergent water outlet, and is used to guide the liquid in the second water outlet tank to flow to the main washing outlet.

[0016] Furthermore, a drawer section that can be pulled out from the front side is provided on the tank, and the drawer section forms a supply case, and at least one powder detergent chamber for accommodating powder detergent and at least one supply chamber for accommodating detergent are provided on the supply case. Preferably, the tank has an opening on the front side for pulling out the drawer section to the outside, and the front wall of the tank is composed of a front shielding plate that is located below the opening and extends vertically, and the height of the top end of the front shielding plate is higher than the height of the top end of the partition rib.

[0017] The outlet of the water supply channel and the outlet of the input channel respectively constitute the powder detergent input port and the cleaning liquid input port of the automatic dispenser, or alternatively, the outlet of the water supply channel communicates with the input channel, and the outlet of the input channel constitutes the input port shared by the powder detergent solution and the cleaning liquid solution of the automatic dispenser.

[0018] The tank further includes a tank water supply conduit, a top cover provided on the top of the tank, a water intake structure provided on the top cover, and the tank water supply conduit communicates with the water intake structure. The water intake structure has a water outlet opening toward the powder detergent chamber below and is used to draw water into the tank via the powder detergent chamber.

[0019] Another object of the present invention is to provide a washing machine equipped with the automatic dispenser described above, which allows the dispensed additive mixture, such as detergent powder, to directly contact the load to be treated in the washing tub, thereby improving the utilization rate of the additive, such as powder detergent.

[0020] In order to achieve the above-mentioned object of the invention, the basic concept of the technical idea adopted by the present invention is as follows.

[0021] The present invention also discloses a washing machine, which includes a washing tub for accommodating a load to be treated, and further includes any of the automatic dosing devices described above, wherein the inlets of the water supply channels of the automatic dosing device are connected to the water intake pipe of the washing machine, and the dosing ports of the automatic dosing device are connected to the inside of the washing tub. [Effects of the Invention]

[0022] <Effect of the Invention 1> By adopting the above-mentioned technical idea, the present invention has the following advantageous effects compared to the prior art.

[0023] 1. By installing a water supply channel 1 with a negative pressure suction structure, the powder detergent solution to be dispensed is extracted using the water flowing through the separately installed water supply channel 1, thereby achieving the effect of automatically extracting and dispensing the powder detergent solution. In addition, by directly mixing the extracted powder detergent solution within the water supply channel 1, the powder detergent solution can be directly mixed within the water supply channel 1 and then dispensed into the washing machine's washing tub 300, thereby achieving a significant technological advancement in that the powder detergent solution can be used to directly spray highly concentrated ingredients onto the clothes in the tub ("Seika-sen").

[0024] 2. In addition, the present invention installs the additive dosing device on the washing machine, so that the additives in the washing machine form a mixed solution, which then flows directly through the water supply channel to the nozzle and is sprayed directly into the washing tub from the nozzle. This allows the additives in the washing machine to flow directly from the water channel of the dosing device into the washing tub and be sprayed onto the load to be treated, without passing through a water receiving tub outside the washing tub, thereby achieving the objective of directly spraying the additive mixed solution onto the load to be treated in the washing tub.

[0025] 3. In addition, with the above-mentioned configuration, the washing machine equipped with the above-mentioned dosing device can realize that the additives are mixed with a small amount of water in the water supply channel, and the formed additive mixture is directly sprayed onto the load to be treated in the washing tub, thereby significantly improving the utilization rate of the added additives.

[0026] <Problem 2 to be solved by the invention> The technical problem to be solved by the present invention is to provide an automatic dispenser that overcomes the drawbacks of the prior art and realizes the object of directly dispensing additives such as powder detergents to the outside through a water supply channel. Another object of the present invention is to provide a dispenser that realizes the object of dissolving, mixing, extracting and dispensing additives using water flows flowing through different water channels.

[0027] <Means for solving the problem 2> The present invention provides a dosing device. The dosing device includes at least two water supply conduits, a tank water supply conduit and an input water supply conduit, and a tank with an input case attached thereto, the input case having an input chamber therein for storing the additive to be added. The tank water supply conduit is connected to a water intake structure installed on the top of the tank and uses the water intake to flow the additive to be added in the input chamber into the tank, where it is dissolved and mixed in the tank to form a mixed liquid of the additive to be added. The input water supply conduit is connected to the outlet of the tank and uses a flowing water stream to draw out the mixed liquid of the additive to be added in the tank and to charge it outside with the flowing water stream.

[0028] The input device further includes a water intake valve with one inlet and two outlets, the inlet of which is controlled to be selectively connected to the two outlets, or to be simultaneously connected to or blocked from the two outlets, and the two outlets are respectively connected to the inlets of the tank water supply channel and the input water supply channel.

[0029] Furthermore, a removable dispenser case is provided inside the tank, a powder detergent chamber is provided on the dispenser case, an outlet is provided at the bottom of the powder detergent chamber, and the upper open port serves as an inlet. At least a water outlet section of the tank water supply conduit is integrally installed on the top cover of the tank, and the outlet of the tank water supply conduit opens toward the upper open port of the powder detergent chamber, allowing the outflow water to directly flow into the powder detergent chamber.

[0030] Furthermore, the input water supply channel is installed outside the tank, and a negative pressure suction structure is provided in the center of the input water supply channel, and the suction port of the negative pressure suction structure is connected to the powder detergent solution outlet installed at the bottom of the tank via a suction pipe line and is used to extract the powder detergent solution into the input water supply channel.

[0031] Furthermore, a pressurizing structure for pressurizing the flowing water is further provided on the input water supply conduit, and is used to form a pressurized water flow in the input water supply conduit. The pressurizing structure is installed upstream of the negative pressure suction structure, and is used to use the pressurized water flow rate to push and mix the extracted powder detergent solution at high speed.

[0032] Preferably, the pressurizing structure is a pressurizing nozzle formed of a tapered pipe whose radial dimension gradually narrows along the water flow direction.

[0033] Furthermore, the negative pressure suction structure is a Venturi tube, and a pipe section is provided on the Venturi tube to change the flow rate of the flowing water by changing the pipe diameter, and a negative pressure suction area is provided on the pipe section to generate negative pressure by using the flowing water flow, and a negative pressure port is provided to connect the inside and outside of the negative pressure suction area, and the negative pressure port is connected to a powder detergent outlet provided at the bottom of the tank via a suction pipe line.

[0034] Furthermore, the negative pressure suction structure comprises a liquid suction chamber and a Venturi tube connected in series on the input water supply channel, and a pressure nozzle is provided in the liquid suction chamber, which communicates with the inlet of the liquid suction chamber. The pressure nozzle is used to pressurize and accelerate the water flow that has flowed into the Venturi tube.

[0035] Furthermore, the pressure nozzle, the liquid suction chamber, and the Venturi tube are all arranged coaxially, with a gap between the pressure nozzle and the inner wall of the liquid suction chamber, and a negative pressure port opening on the side wall of the liquid suction chamber. The negative pressure port communicates with the Venturi tube through the gap, and allows the negative pressure generated by the Venturi tube to act on the liquid suction chamber, forming a negative pressure suction region within the liquid suction chamber where negative pressure can be generated.

[0036] Furthermore, the outlet of the input water supply channel constitutes the input port of the input device.

[0037] Another object of the present invention is to provide a washing machine equipped with the automatic dispenser described above, which allows the dispensed additive mixture, such as detergent powder, to directly contact the load to be treated in the washing tub, thereby improving the utilization rate of the additive, such as powder detergent.

[0038] In order to achieve the above-mentioned object of the invention, the basic concept of the technical idea adopted by the present invention is as follows.

[0039] The present invention also discloses a washing machine, which includes a washing tub for accommodating a load to be treated, and further includes any of the above-described dosing devices, wherein the inlets of the water supply channels of the dosing device are connected to the water intake pipe of the washing machine, and the dosing ports of the dosing device are connected to the inside of the washing tub.

[0040] <Effect of the Invention 2> By adopting the above-mentioned technical idea, the present invention has the following advantageous effects compared to the prior art.

[0041] 1. With the above-mentioned configuration, after water is drawn from two different water supply channels, the powder detergent previously added can be mixed to form a powder detergent solution, and the powder detergent solution can be extracted and dispensed, thereby achieving the effect of automatically dispensing the powder detergent added by the user. Furthermore, since the two water supply channels can be operated simultaneously, the powder detergent can be mixed and extracted simultaneously, significantly reducing the time required for the dispenser to dispense the powder detergent.

[0042] 2. In addition, the present invention installs the additive dosing device on the washing machine, so that the additives in the washing machine form a mixed solution, which then flows directly through the water supply channel to the nozzle and is sprayed directly into the washing tub from the nozzle. This allows the additives in the washing machine to flow directly from the water channel of the dosing device into the washing tub and be sprayed onto the load to be treated, without passing through a water receiving tub outside the washing tub, thereby achieving the objective of directly spraying the additive mixed solution onto the load to be treated in the washing tub.

[0043] 3. In addition, with the above-mentioned configuration, the washing machine equipped with the above-mentioned dosing device can realize that the additives are mixed with a small amount of water in the water supply channel, and the formed additive mixture is directly sprayed onto the load to be treated in the washing tub, thereby significantly improving the utilization rate of the added additives.

[0044] <Problem 3 to be solved by the invention> The technical problem to be solved by the present invention is to overcome the drawbacks of the prior art and further provide a negative pressure suction structure to achieve the purpose of efficiently extracting additive mixture liquid such as powder detergent. Another object is to provide a negative pressure suction structure and apply pressure treatment to the intake water flow to generate negative pressure, thereby improving the negative pressure suction effect and increasing the injection speed of additive mixture liquid.

[0045] <Means for solving the problem 3> In order to achieve the above-mentioned object of the invention, the basic concept of the technical idea adopted by the present invention is as follows.

[0046] The present invention provides a negative pressure suction structure comprising a liquid inlet pipe section having a liquid inlet pipe section for introducing a fluid thereinto, and a liquid outlet pipe section having a liquid outlet pipe section for discharging the fluid therein, the outlet of the liquid inlet pipe section being inserted into the inlet of the liquid outlet pipe section, the liquid inlet pipe section and the liquid outlet pipe section being connected to form a flow path for water flow. A gap between the outer wall of the outlet of the liquid inlet pipe section and the inner wall of the inlet of the liquid outlet pipe section forms a negative pressure suction region where negative pressure is generated by the water flowing through the flow path, and a negative pressure port is provided in the outer wall of the liquid outlet pipe section, connecting the negative pressure suction region to the outside.

[0047] Furthermore, the outlet of the liquid inlet pipe section is a tapered pipe whose diameter gradually decreases in the direction of water flow. The inlet of the liquid outlet pipe section is a straight pipe fitted coaxially around the outer wall of the tapered pipe, with the straight pipe's inner diameter being larger than the maximum outer diameter of the tapered pipe. The downstream portion of the straight pipe is a Venturi pipe, which is coaxially installed downstream of the tapered pipe of the liquid inlet pipe section, with the minimum outer diameter of the tapered pipe being smaller than the maximum inner diameter of the Venturi pipe.

[0048] Furthermore, the Venturi tube includes a reduced diameter section, a straight pipe section, and an expanded diameter section arranged in this order along the water flow direction, and the minimum inner diameter of the reduced diameter section is larger than the minimum inner diameter of the reduced diameter tube and smaller than the maximum inner diameter of the reduced diameter tube.

[0049] Furthermore, the upstream end of the straight pipe at the inlet portion of the liquid outlet pipe section is sealedly connected to the outlet portion of the liquid inlet pipe section, and the downstream end is connected to the inlet end of the Venturi tube, and a negative pressure port is provided on the pipe wall in the center portion to connect the inside and outside of the pipe.

[0050] Furthermore, a radially protruding annular mounting portion is provided on the outer wall of the liquid outlet section of the liquid inlet pipe section, and a radially outward protruding mounting groove is provided on the outer wall of the upstream end of the straight pipe, into which the annular mounting portion is inserted and fitted. Preferably, at least one seal ring is provided at the junction of the annular mounting portion and the mounting groove to seal the insertion connection between the liquid inlet pipe section and the liquid outlet pipe section.

[0051] Furthermore, the annular mounting portion is provided at the large diameter end of the reduced diameter pipe of the liquid inlet pipe section, and the axial length of the reduced diameter pipe is equal to or greater than the axial length of the straight pipe and is smaller than the sum of the axial lengths of the straight pipe and the expanded diameter section.

[0052] Furthermore, the inner diameter of the straight pipe is larger than the maximum inner diameter of the Venturi pipe, and the downstream end of the straight pipe and the large diameter end of the reduced diameter section are joined via a transition angle.

[0053] Furthermore, the hole diameter of the negative pressure port is smaller than the maximum inner diameter of the Venturi tube and larger than the minimum inner diameter of the reduced diameter tube.

[0054] Another object of the present invention is to provide an automatic dispenser for realizing the object of allowing additives such as powder detergent to be directly dispensed to the outside through a water supply channel.

[0055] To achieve the above-mentioned object of the invention, the basic concept of the technical idea adopted by the present invention is as follows: A dosing device including a tank for mixing additives added by a user with intake water to form a mixed liquid, further including a water supply channel equipped with the above-mentioned negative pressure suction structure, wherein the inlet of the liquid inlet pipe section of the negative pressure suction structure is connected to the upstream of the water supply channel, the outlet of the liquid outlet pipe section is connected to the downstream of the water supply channel, and the negative pressure port is connected to the outlet of the tank via a liquid suction channel, and the dosing device uses negative pressure generated by the flowing water flow to suck and charge the mixed liquid in the tank into the water supply channel.

[0056] Another object of the present invention is to provide a washing machine equipped with the automatic dispenser described above, which allows the dispensed additive mixture, such as detergent powder, to directly contact the load to be treated in the washing tub, thereby improving the utilization rate of the additives, such as powder detergent.

[0057] In order to achieve the above-mentioned object of the invention, the basic concept of the technical idea adopted by the present invention is as follows.

[0058] The present invention further discloses a washing machine having a washing tub, further comprising the above-mentioned dosing device, wherein the outlet of the water supply channel is connected to the washing tub and is used to dosing the mixed liquid into the washing tub.

[0059] <Effect 3 of the invention> By adopting the above-mentioned technical idea, the present invention has the following advantageous effects compared to the prior art.

[0060] 1. With the above-mentioned configuration, the pressurizing structure is integrated into the negative pressure suction structure, and the intake water flowing into the negative pressure suction structure is first pressurized and accelerated, significantly increasing the water pressure of the water flowing through the negative pressure suction structure. This increases the negative pressure in the negative pressure suction area, significantly improving the extraction speed of the additive mixture. In addition, with the above-mentioned configuration, negative pressure can be generated in the negative pressure suction area using the injection process of the pressurizing structure formed by the diameter-reducing pipe, further enhancing the negative pressure suction effect.

[0061] 2. In addition, the present invention installs the additive dosing device on the washing machine, so that the additives in the washing machine form a mixed solution, which then flows directly through the water supply channel to the nozzle and is sprayed directly into the washing tub from the nozzle. This allows the additives in the washing machine to flow directly from the water channel of the dosing device into the washing tub and be sprayed onto the load to be treated, without passing through a water receiving tub outside the washing tub, thereby achieving the objective of directly spraying the additive mixed solution onto the load to be treated in the washing tub.

[0062] 3. In addition, with the above-mentioned configuration, the washing machine equipped with the above-mentioned dosing device can realize that the additives are mixed with a small amount of water in the water supply channel, and the formed additive mixture is directly sprayed onto the load to be treated in the washing tub, thereby significantly improving the utilization rate of the added additives.

[0063] Furthermore, the structure of the present invention is simple, has remarkable effects, and is suitable for widespread use.

[0064] Specific embodiments of the present invention will be described in more detail below with reference to the drawings. [Brief explanation of the drawings]

[0065] The drawings constituting a part of the present invention are intended to provide a further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are intended to interpret the present invention and are not intended to unduly limit the present invention. Needless to say, the drawings in the following description are merely some examples, and those skilled in the art can derive other drawings based on these drawings without requiring creative efforts. The drawings are as follows:

[0066] [Figure 1] 1 is a diagram illustrating the principle of a feeding device according to an embodiment of the present invention. [Figure 2] 3A to 3C are structural schematic diagrams of the injection device according to the embodiment of the present invention, viewed from different angles; [Figure 3] 3A to 3C are structural schematic diagrams of the injection device according to the embodiment of the present invention, viewed from different angles; [Figure 4] 1 is a schematic exploded view of a feeding device according to an embodiment of the present invention; [Figure 5] 1 is a schematic cross-sectional view of a charging device according to an embodiment of the present invention; [Figure 6] 6 is an enlarged structural schematic diagram of part A in FIG. 5 in an embodiment of the present invention. [Figure 7] 1 is a structural schematic diagram of a tank according to an embodiment of the present invention; [Figure 8] FIG. 10 is a structural schematic diagram of an input device according to another embodiment of the present invention. [Figure 9] 4 is a flowchart of a method for controlling an input device according to an embodiment of the present invention.

[0067] It should be explained that these drawings and written description are not intended to limit the scope of the inventive concept in any way, but rather to explain the inventive concept to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION OF THE INVENTION

[0068] In order to clarify the objectives, technical ideas and advantages of the embodiments of the present invention, the technical ideas of the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. The following examples are for illustrating the present invention, but are not intended to limit the scope of the present invention.

[0069] It should be explained in the description of the present invention that the orientations or positional relationships indicated by the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "inner," "outer," etc. are based on the orientations or positional relationships shown in the drawings, and are intended merely to facilitate the description and simplification of the present invention, and do not indicate or imply that the devices or components shown necessarily have a specific orientation or are constructed and operated in a specific orientation, and should not be understood as limiting the present invention.

[0070] As should be explained in the description of the present invention, unless otherwise clearly specified or limited, the terms "attach," "connect to each other," and "connect" should be understood in a broad sense. For example, they may refer to a fixed connection, a detachable connection, or an integral connection. They may also refer to a mechanical connection or an electrical connection. They may also refer to a direct connection or an indirect connection via an intermediate medium. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0071] As shown in Figures 1 to 8, a washing machine is introduced in an embodiment of the present invention. The washing machine includes a water receiving tub 200 for storing water, a washing tub 300 rotatably mounted within the water receiving tub 200 for storing a load to be treated, and an automatic dispensing device 100 for directly dispensing an additive mixture into the washing tub 300. With the above-described configuration, the washing machine can directly dispense the additive mixture into the washing tub 300 and spray the dispensed additive mixture directly onto the load to be treated in the washing tub 300, thereby achieving a significant technological advancement in improving the additive usage rate.

[0072] In addition, in the present invention, the additive may be a liquid detergent, fabric softener, disinfectant, or the like, or may be a solid powder detergent. In the present invention, the automatic dispenser 100 can also dispense powder detergent directly into the washing tub 300. After the user manually adds powder detergent to the dispenser 100, the dispenser 100 first dissolves the powder detergent in the water to form a powder detergent solution, and then the powder detergent solution is directly sprayed onto the load to be treated in the washing tub 300 along with the water intake. As a result, the concentrated powder detergent solution is used to directly act on the clothes in the washing tub 300, achieving the effect of performing a concentrated direct injection wash ("essential washing") on the clothes. In addition, in the present invention, by directly mixing the powder detergent in the dispenser 100, the formed powder detergent solution is directly sprayed onto the clothes in the washing tub 300. This eliminates the need to refill the water receiving tub 200 when the washing machine executes a subsequent program, such as a wash cycle, thereby avoiding dilution of the powder detergent solution and significantly reducing water consumption.

[0073] In the present invention, the water outlet of the water supply channel 1 of the automatic dispensing device 100 can directly constitute the inlet of the input channel 9, or the outlet of the water supply channel 1 can be connected to a separately installed input channel 9, and the inlet of the input channel 9 is connected to a nozzle that sprays into the washing tub 300 of the washing machine. The nozzle can be provided on the housing of the washing machine, and / or the door body, and / or the water receiving tub 200, and / or the window gasket, and the spray outlet of the nozzle opens into the inside of the washing tub 300. This allows the additive mixture to be sprayed directly onto the load contained in the washing tub 300 of the washing machine through the nozzle to the maximum extent possible, thereby achieving the effect of direct ingredient spray washing ("essential washing") without immersion in the clothes. [Example]

[0074] As shown in Figures 1 to 8, an automatic dispensing device 100 with a powder detergent dispensing function described in an embodiment of the present invention includes a dispensing case 5 having a powder detergent chamber 51 therein for dispensing powder detergent, a tank 2 in which the powder detergent stored in the powder detergent chamber 51 is poured into the tank 2 using the incoming water flow, where the powder detergent comes into contact with the water and dissolves, forming a powder detergent solution, and a water supply channel 1 to which a negative pressure suction structure 4 is attached and which creates negative pressure using the water flow flowing therein, and a negative pressure port 41 of the negative pressure suction structure 4 communicates with the tank 2, and the powder detergent solution in the tank 2 is drawn into the water supply channel 1 using the negative pressure, and is dispensed together with the water flowing through the water supply channel 1.

[0075] By installing a water supply channel 1 with a negative pressure suction structure, the water flowing through the separately installed water supply channel 1 is used to extract the powder detergent solution mixture to be added, thereby achieving the effect of automatically extracting and adding the powder detergent solution. In addition, by directly mixing the extracted powder detergent solution in the water supply channel 1, the effect of directly mixing the powder detergent solution in the water supply channel 1 and then adding it to the washing machine's washing tub 300 is achieved, thereby achieving a significant technological advancement in which the powder detergent solution is used to directly spray high-concentration ingredients onto the clothes in the tub ("Seika-sen").

[0076] In this embodiment, the negative pressure suction structure 4 is a Venturi tube 40 attached to the water supply channel 1, and the Venturi tube 40 has, arranged in order, a reduced diameter section 401 in which the pipe diameter decreases, a straight pipe section 402 in which the pipe diameter is slightly smaller, and an expanded diameter section 403 in which the pipe diameter increases. A negative pressure port 41 connecting the inside and outside of the pipe is provided in the straight pipe section 402 at the connection point between the reduced diameter section 401 and the expanded diameter section 403, and the negative pressure port 41 communicates with the powder detergent solution outlet 211 installed at the bottom of the tank 2 via the suction pipe line 13.

[0077] In this embodiment, a water intake structure is provided on the top of the tank 2, and the water intake structure is connected to the tank water supply channel 11. The water intake structure has a water outlet opening toward the upper opening of the powder detergent chamber 51 of the dispenser case 5, and a flowing water stream is used to pour the powder detergent in the powder detergent chamber 51 into the tank 2. Preferably, a top lid 3 is installed to cover the top of the tank 2, and the top lid 3 is composed of a first part 31 and a second part 32 that are fitted together, and the joint surfaces of the two parts have an integrated water channel formed by a concave-convex structure, and at least a part of the integrated water channel forms the water intake structure.

[0078] In this embodiment, a partition rib 23 is provided at the bottom of the tank 2 to divide the lower part of the tank 2 into a first water outlet tank 21 and a second water outlet tank 22. A powder detergent solution outlet 211 and a main wash outlet 221 are provided at the bottom of the first water outlet tank 21 and the second water outlet tank 22, respectively. The powder detergent solution outlet 211 communicates with the negative pressure port 41 of the negative pressure suction structure 4 via the liquid suction line 13, and the main wash outlet 221 communicates with the input water channel of the input device 100.

[0079] In this embodiment, the first outlet tank 21 and the second outlet tank 22 are arranged in front-to-back order, and the first outlet tank 21 is connected to the outlet 511 of the powder detergent chamber 51 on the dispenser case so that the powder detergent solution flows in. Preferably, the bottom of the first outlet tank 21 has a slope that is inclined so that the liquid in the first outlet tank 21 can be gathered at the powder detergent solution outlet 211, and is used to guide the liquid in the first outlet tank 21 to flow to the powder detergent solution outlet 211.

[0080] In this embodiment, the dispenser case 5 is attached to the tank so as to be retractable. The dispenser case 5 has at least one dispenser chamber 52 for storing detergent, and the detergent in the dispenser case 5 is dispensed into the second water outlet tank 22 of the tank 2 using an integrated waterway installed on the top cover 3 of the tank 2, or the extracted detergent is directly dispensed from the dispenser waterway 9 of the automatic dispenser 100. Preferably, the detergent dispenser chamber 52 and the powder detergent chamber 51 are integrated and installed on the same dispenser case 5. Preferably, the bottom of the second water outlet tank 22 has a slope that is inclined to converge toward the main wash outlet 221, and is used to guide the liquid in the second water outlet tank 22 to flow to the main wash outlet 221.

[0081] In this embodiment, a drawer section that can be pulled out from the front side is provided on the tank 2, and the drawer section forms the dispenser case 5, and at least one powder detergent chamber 51 for storing powder detergent and at least one dispenser chamber 52 for storing cleaning agent or the like are provided on the drawer section. Preferably, the tank 2 has an opening on the front side for pulling the drawer section out, and the front wall of the tank 2 is made up of a front shielding plate 24 that is positioned below the opening and extends vertically, and the height of the top end of the front shielding plate 24 is higher than the height of the top end of the partition rib 23, which ensures that the powder detergent solution or the like that has flowed into the water outlet tank will not overflow from the front side of the dispenser device 100.

[0082] In this embodiment, the outlet of the water supply channel 1 and the outlet of the input channel 9 respectively constitute the powder detergent input port and the detergent solution input port of the automatic dispenser, or alternatively, the outlet of the water supply channel 1 communicates with the input channel 9, and the outlet of the input channel 9 constitutes a common input port of the automatic dispenser for both the powder detergent solution and the detergent solution. [Example]

[0083] As shown in Figures 1 to 8, in this embodiment, the automatic dispensing device includes at least two water supply conduits 1, namely, a tank water supply conduit 11 and an input water supply conduit 12, and a dispensing case 5 attached to a tank 2 and having a powder detergent chamber 51 therein for dispensing powder detergent. The tank water supply conduit 11 is connected to the water intake structure 8 of the tank 2, and uses the input water to flow the powder detergent in the powder detergent chamber 51 into the tank 2, where it is mixed to form a powder detergent solution. The input water supply conduit 12 is connected to the outlet of the tank 2, and uses a flowing water stream to draw out the powder detergent solution mixed in the tank 2 and dispense it outside together with the flowing water.

[0084] With the above-mentioned configuration, after water is drawn into two different water supply channels, the powder detergent previously added can be mixed to form a powder detergent solution, and the powder detergent solution can be extracted and dispensed, thereby achieving the effect of automatically dispensing the powder detergent added by the user.In addition, since the two water supply channels can be operated simultaneously, the powder detergent can be mixed and extracted simultaneously, significantly reducing the time required for the dispenser to dispense the powder detergent.

[0085] In this embodiment, the automatic dispensing device 100 has a water intake valve 6, which is a valve with one inlet and two outlets, and the inlet is controlled to communicate with the two outlets alternatively, simultaneously, or simultaneously shut off, and the two outlets communicate with the inlets of the tank water supply channel 11 and the input water supply channel, respectively. Alternatively, the same outlet of the water intake valve 6 communicates with the inlets of the tank water supply channel 11 and the input water supply channel 12 via a three-way joint, so that the tank water supply channel 11 and the input water supply channel 12 can only be opened and closed simultaneously. However, the technical effect of automatically dispensing additives after mixing and the technical purpose of enabling the washing machine to realize ingredient direct injection washing ("essence washing") can still be achieved.

[0086] In this embodiment, a removable dispenser case 5 is provided within the tank 2, and a powder detergent chamber 51 is provided on the dispenser case 5. An outlet is provided at the bottom of the powder detergent chamber 51, and the upper open port forms an inlet. At least the water outlet pipe section of the tank water supply conduit 11 is integrally installed on the top cover 3 at the top of the tank 2, and the outlet of the tank water supply conduit 11 opens toward the upper open port of the powder detergent chamber 51, allowing the water to flow directly into the powder detergent chamber 51. Preferably, the top cover 3 is provided on the top of the tank, and the top cover 3 is composed of a first part 31 and a second part 32 that are fitted together vertically. The first part 31 and the second part 32 are combined opposite each other to form an integrated water channel at their joint surfaces. In addition, at least a portion of the integrated water channel forms a water intake structure 8, which communicates with the outlet of the tank water supply conduit 11. The tank water supply conduit 11 is provided with a water outlet that opens toward the bottom of the top cover and is located above the upper open port of the powder detergent chamber. This allows the intake water flow from the tank water supply channel 11 to directly flow into the powder detergent chamber 51, allowing the pre-added powder detergent to flow into the outlet tub at the bottom of the tank 2 to form a powder detergent solution.More preferably, the first and second parts 31 and 32 of the top cover 3 are connected by a welding process to form an internally sealed, pressure-resistant channel structure.

[0087] In this embodiment, the input water supply channel 12 is installed below the tank 2, and the negative pressure suction structure 4 is provided in the center of the input water supply channel 12. The negative pressure port 41 of the negative pressure suction structure 4 is connected to the tank 2 via the suction pipe 13 and is used to extract the powder detergent solution into the input water supply channel 12.

[0088] In this embodiment, a pressurizing structure 7 for pressurizing the flowing water is further provided on the input water supply channel 12, and is used to form a pressurized water flow in the water supply channel 1. The pressurizing structure 7 is installed upstream of the negative pressure suction structure 4, and is used to use the pressurized water flow rate to push and mix the extracted powder detergent solution at high speed, thereby improving the mixing uniformity of the powder detergent solution and the input water flow. Preferably, the pressurizing structure 7 is a pressurizing nozzle 70 composed of a tapered tube whose radial dimension gradually narrows along the water flow direction.

[0089] In this embodiment, the negative pressure suction structure 4 is a Venturi tube 40. A pipe section is provided on the Venturi tube 40, which changes the flow rate of the flowing water by changing the pipe diameter. The pipe section has a negative pressure suction region 44 that generates negative pressure using the flowing water. A negative pressure port 41 is provided to communicate the inside and outside of the negative pressure suction region 44, and the negative pressure port 41 communicates with the powder detergent solution outlet 211 of the tank 2 via the liquid suction pipe 13. As a result, the mixed powder detergent solution is directly extracted into the water supply channel 12 by the negative pressure and is discharged to the outside together with the water flowing through the water supply channel 12. Preferably, a liquid suction chamber 45 is provided at the upstream end of the Venturi tube 40, and the negative pressure suction region 44 communicating with the Venturi tube 40 is formed within the liquid suction chamber 45. Furthermore, a negative pressure port 41 that connects the inside and outside of the liquid suction chamber 45 is provided on the side wall thereof, which allows negative pressure to be introduced directly into the liquid suction chamber 45 by the water flow through the Venturi tube, thereby greatly increasing the variety of locations in which the negative pressure port 41 can be installed.

[0090] In this embodiment, the pressurizing structure 7 is a pressurizing nozzle 70 installed on the Venturi tube 40. The pressurizing nozzle 70 is installed at the entrance of the Venturi tube 40 and is used to increase the flow rate of the liquid flowing into the Venturi tube 40 and form a high-pressure water stream. The high-pressure water stream not only pushes the powder detergent solution extracted into the Venturi tube 40 at high pressure and enhances the mixing effect, but also increases the negative pressure generated when the high-pressure water stream flows through the expanded diameter portion at the exit of the Venturi tube 40, thereby improving the extraction efficiency of the powder detergent solution in the tank by the Venturi tube 40. Preferably, the pressurizing nozzle 70 is installed within the liquid suction chamber 45, with a gap between the pressurizing nozzle 70 and the liquid suction chamber 45. The gap forms a negative pressure suction region 44 and directly communicates with the Venturi tube 40.

[0091] In this embodiment, the outlet of the water supply channel 12 is connected to the washing machine's washing tub 300 via a nozzle, and the extracted powder detergent solution is directly sprayed into the washing machine's washing tub 300 to perform a program such as a direct spray wash ("Seika Wash") with a relatively high concentration of powder detergent on the clothes in the washing tub 300. [Example]

[0092] 1 to 8, this embodiment introduces a negative pressure suction structure 4. The negative pressure suction structure includes a liquid inlet pipe section 42 having a liquid inlet pipe section 42 for introducing a fluid, and a liquid outlet pipe section 43 having a liquid outlet flow path for discharging the fluid. The outlet of the liquid inlet pipe section 42 is inserted into the inlet of the liquid outlet pipe section 43, and the liquid inlet pipe section 42 and the liquid outlet pipe section 43 are connected to form a flow path for water. The gap between the outer wall of the outlet of the liquid inlet pipe section 42 and the inner wall of the inlet of the liquid outlet pipe section 43 forms a negative pressure suction region 44 where negative pressure is generated by the water flowing through the flow path. A negative pressure port 41 is provided on the outer wall of the liquid outlet pipe section 43, connecting the negative pressure suction region 44 to the outside.

[0093] With the above-mentioned configuration, the pressurizing structure is integrated into the negative pressure suction structure, and the intake water flowing into the negative pressure suction structure is first pressurized and accelerated, significantly increasing the water pressure of the water flowing through the negative pressure suction structure. This increases the negative pressure in the negative pressure suction area, significantly improving the extraction speed of the additive mixed liquid. In addition, with the above-mentioned configuration, negative pressure can be generated in the negative pressure suction area using the injection process of the pressurizing structure formed by the diameter-reducing pipe, further enhancing the negative pressure suction effect.

[0094] In this embodiment, the outlet of the liquid inlet pipe section 42 is a tapered pipe 421 whose diameter gradually decreases in the direction of water flow, and the inlet of the liquid outlet pipe section 43 is a straight pipe 431 fitted coaxially around the outer wall of the tapered pipe, with the inner diameter of the straight pipe 431 being larger than the maximum outer diameter of the tapered pipe 421. The tapered pipe 421 of the liquid inlet pipe section 42 extends into the straight pipe 431 of the liquid outlet pipe section 43, and the gap between the tapered pipe 421 and the straight pipe 431 forms a negative pressure suction area 44, with a negative pressure port 41 opening on the pipe wall at the center of the straight pipe 431. The outlet end of the tapered pipe 421 extends straight into the straight pipe 431 or downstream of the straight pipe 431. As a result, the pressurized water stream ejected from the diameter-reducing pipe 421 enters directly into the straight pipe 431 with a larger radial dimension, and by utilizing the injection action, creates a negative pressure in the negative pressure suction area 44 between the straight pipe 431 and the diameter-reducing pipe 421, drawing the powder detergent solution into the liquid inlet pipe section 42 through the negative pressure port 41. In addition, the high-pressure water stream entering from the diameter-reducing pipe 421 pushes away the powder detergent solution drawn in by the negative pressure, and the two are stirred and mixed within the straight pipe, greatly improving the uniformity of mixing of the powder detergent solution and the intake water stream.

[0095] In this embodiment, the downstream portion of the straight pipe 431 is a Venturi tube 40, which is installed coaxially downstream of the reduced diameter pipe 421 of the liquid inlet pipe section 42, and the minimum outer diameter of the reduced diameter pipe 421 is smaller than the maximum inner diameter of the Venturi tube 40. Preferably, the minimum outer diameter of the reduced diameter pipe 421 is smaller than the minimum inner diameter of the Venturi tube 40. By additionally installing the Venturi tube 40 on the liquid outlet pipe section, the Venturi tube 40 can use the negative pressure generated by the flowing water to draw both the powder detergent solution in the upstream straight pipe drawn in from the negative pressure port 41 and the high-pressure intake water sprayed from the reduced diameter pipe 421 into the downstream pipe, thereby achieving the effect of mixing the powder detergent solution and the high-pressure intake water before charging.

[0096] In this embodiment, the Venturi pipe 40 of the liquid outlet pipe section 43 comprises a reduced diameter section 401, a straight pipe section 402, and an expanded diameter section 403, which are arranged in this order along the water flow direction, with the large diameter end of the reduced diameter section 401 being the inlet and communicating with the outlet end of the straight pipe 431, and the large diameter end of the expanded diameter section 403 being the outlet and communicating with the downstream waterway. The minimum inner diameter of the reduced diameter section 401 is larger than the minimum inner diameter of the reduced diameter pipe 421 at the outlet portion of the liquid inlet pipe section 42, but smaller than the maximum inner diameter of the reduced diameter pipe 421 at the outlet portion of the liquid inlet pipe section 42.

[0097] In this embodiment, the upstream end of the straight pipe 431 at the inlet of the liquid outlet pipe section 43 is sealed and connected to the outlet of the liquid inlet pipe section 42, and the downstream end is connected to the large-diameter end of the reduced-diameter section 401 of the Venturi tube 40, and a negative pressure port 41 is provided on the pipe wall in the center to connect the inside and outside of the pipe.

[0098] In this embodiment, a radially protruding annular mounting portion 422 is provided on the outer wall of the liquid outlet portion of the liquid inlet pipe section 42, and a mounting groove 432 is provided on the outer wall of the upstream end of the straight pipe 431, protruding radially outward, into which the annular mounting portion 422 is inserted and mounted. Preferably, at least one seal ring 433 is provided at the junction of the annular mounting portion 422 and the mounting groove 432 to seal the insertion and connection portion of the liquid inlet pipe section 42 and the liquid outlet pipe section 43. This seals and establishes a negative pressure suction area 44 formed in the gap between them, allowing stable negative pressure to be introduced to the negative pressure port 41 for extracting the powder detergent solution.

[0099] In this embodiment, the annular mounting portion 422 is provided at the large diameter end of the reduced diameter pipe 421 of the liquid inlet pipe section 42, and the axial length of the reduced diameter pipe 421 is equal to or greater than the axial length of the straight pipe 431 but is smaller than the sum of the axial lengths of the straight pipe 431 and the reduced diameter section 401 of the Venturi tube 40.

[0100] In this embodiment, the inner diameter of the straight pipe 431 is larger than the maximum inner diameter of the reduced diameter section 401, and the downstream end of the straight pipe 431 and the large diameter end of the reduced diameter section 401 are joined via a transition corner.

[0101] In this embodiment, the hole diameter of the negative pressure port 41 is smaller than the maximum inner diameter of the diameter-reducing section 401 and larger than the minimum inner diameter of the diameter-reducing tube 421 . [Example]

[0102] As shown in Figures 1 to 8, this embodiment introduces a tank structure for an automatic dispensing device. The tank structure includes a groove-shaped tank 2. The tank 2 is divided into at least two independent sections, each of which is used to receive and mix different additive mixtures. The two sections of the tank are a first water outlet 21 and a second water outlet 22, and the bottoms of the two water outlet tubs are each provided with at least one outlet for the mixed powder detergent solution or detergent water to flow out, thereby achieving the effect of dispensing the powder detergent solution and detergent water into the washing machine.

[0103] With the above-mentioned configuration, the washing machine tank can have multiple different outlet tubs, which allows different additives to be mixed in the corresponding outlet tubs, thereby avoiding problems such as mixing of different additives. Also, by installing two different outlet tubs in the tank, if overflow occurs in one of the outlet tubs, the outlet of the other outlet tub can be used to divert the flow, effectively avoiding problems such as overflow from the front of the automatic dispensing device.

[0104] In this embodiment, a partition rib 23 extending vertically upward is installed on the bottom of the tank 2, and the partition rib 23 itself or the partition rib 23 together with the side wall of the tank 2 surrounds the inside of the tank, creating an independent part that forms the first water outlet tank 21, and the other part of the tank 2 forms the second water outlet tank 22.

[0105] In this embodiment, the partition rib 23 includes a first partition 231 extending in the front-rear direction of the tank 2 and a second partition 232 extending in the left-right direction of the tank 2. The rear end of the first partition 231 is joined to the rear wall of the tank 2, the front end is connected to the right end of the second partition 232, and the left end of the second partition 232 is joined to the left wall of the tank 2. As a result, the partition rib 23 separates the left half of the central rear part of the tank 2, forming the first water outlet tank 21.

[0106] In this embodiment, the powder detergent solution outlet 211 is provided on the bottom wall of the first water outlet tub 21, and the bottom wall of the first water outlet tub 21 has a downward slope converging toward the powder detergent solution outlet 211. Preferably, the bottom of the first water outlet tub 21 has a slope that slopes gradually downward from the rear to the front, and the powder detergent solution outlet 211 is located on the front side of the first water outlet tub 21. More preferably, the first water outlet tub 21 has a downwardly recessed groove 212 on the front side close to the second partition 232, and the side wall of the groove 212 has a conical surface that slopes downward from the periphery to converge toward the center, and the powder detergent solution outlet 211 is located at the lowest point in the center of the groove 212.

[0107] In this embodiment, the front wall of the tank is made up of a tank front shielding plate 24, and a retractable supply case 5 is attached to the front side of the tank. The height of the tank front shielding plate 24 is lower than the other side walls and is located below the supply case 5, so that the supply case can be pulled out and used. There is a certain gap between the second partition 232 and the tank front shielding plate 24, and a main cleaning outlet 221 is provided on the bottom wall of the tank 2 in the gap portion, and the main cleaning outlet is located in the second water outlet tank 22. Preferably, the height of the top end of the front shielding plate 24 is higher than the height of the top end of the partition rib 23. More preferably, a notch 233 is provided at the top of the second partition 232, so that the height of at least a portion of the top end of the second partition 232 is lower than the top end of the first partition 231.As a result, all water flowing out from the first partition 231 of the first water outlet tank 21 enters the second water outlet tank 22 and can be smoothly discharged to the outside from the main washing outlet 221, and further, it is possible to effectively prevent the powder detergent solution in the first water outlet tank 21 from overflowing to the outside.

[0108] In this embodiment, the bottom of the second water outlet tub 22 is a downwardly sloping surface that converges from the periphery toward the main wash outlet. Preferably, the bottom of the second water outlet tub 22 is a surface that gradually slopes downward from rear to front and from right to left, so that the main wash outlet 221 located on the left front side is located at the lowest point of the second water outlet tub 22 and is used to guide water in the second water outlet tub 22 to the main wash outlet 221 and flow out.

[0109] In this embodiment, a removable dispenser case 5 is attached to the top of the tank 2, a powder detergent chamber 51 is provided on the dispenser case 5, and an outlet 511 is provided behind the powder detergent chamber 51, and the outlet 511 is located above the first water outlet tub 21. The powder detergent solution flowing out from the outlet 511 of the powder detergent chamber 51 enters the first water outlet tub 21 and then flows out from the powder detergent solution outlet 211.

[0110] In this embodiment, a water intake joint is provided that opens through the rear wall of the tank 2. The water intake joint is connected to a water intake structure 8 formed by an integrated water channel in the top cover 3 provided on the top of the tank 2, and is used to draw water into the water intake structure 8 on the top cover 3. The water outlet of the water intake structure 8 is located above the opening of the powder detergent chamber 51 in the dispenser case 5. As a result, the water that flows into the water intake structure 8 from the water intake joint flows into the powder detergent chamber 51 from the water outlet, mixes the powder detergent in the powder detergent chamber 51 with water, and forms a powder detergent solution, which then flows into the first water outlet tank 21 from the rear outlet 511, and is further discharged to the outside via the powder detergent solution outlet 211 before being dispensed. [Example]

[0111] As shown in Figures 1 to 8, this embodiment introduces an automatic dosing device. The automatic dosing device includes a water supply channel 1 through which a water supply flow flows, and a dosing unit that doses an additive mixed solution into the water supply channel 1. The water supply channel 1 has a pressurizing structure 7 for increasing the water pressure of the flowing water, and the pressurized water flow pushes and mixes the additive mixed solution that has been dosed into the water supply flow with high pressure.

[0112] The above-described configuration uses a pressurization structure to generate a high-pressure water flow in the water supply conduit, directly pushing the additive mixture, such as the powder detergent solution or cleaning liquid solution, drawn into the water supply conduit. This allows the high-pressure water flow to promote uniform mixing and further improve the additive dispensing efficiency. The high-pressure water flow can also be used to increase the flow rate of the water flowing into the negative pressure suction structure installed on the water supply conduit, thereby increasing the generated negative pressure and further increasing the extraction rate of the additive mixture, such as the powder detergent solution or cleaning liquid solution, in the tank.

[0113] In this embodiment, the pressurizing structure 7 is located upstream of the connection point between the input unit and the water supply channel 1, so that the high-pressure water flow formed after pressurization can be directly sprayed onto and wash away the input additive mixed liquid.

[0114] In this embodiment, the pressurizing structure 7 is a pressurizing nozzle 70 formed of a tapered tube whose diameter gradually decreases along the water flow direction.

[0115] In this embodiment, the dispensing unit includes a negative pressure suction structure 4 connected in series to the water supply channel 1, which generates negative pressure using the flowing water. The negative pressure port 41 of the negative pressure suction structure 4 is connected to the outlet of the tank 2 via the suction pipe 13, and the additive mixture liquid such as powder detergent and / or cleaning liquid formed in the tank 2 is drawn into the water supply channel 1 using negative pressure, mixed with the flowing water, and then dispensed outside.

[0116] In this embodiment, the pressurizing structure 7 is located at the entrance of the negative pressure suction structure 4. This directly pushes the powder detergent solution, cleaning liquid solution, etc. drawn into the water supply channel 1 with high pressure, thereby improving the mixing effect of adding additives, as well as increasing the flow rate of the water flowing into the negative pressure suction structure 4, thereby increasing the generated negative pressure and further increasing the extraction rate of the additive mixture, such as the powder detergent solution, cleaning liquid solution, etc., in the tank 2.

[0117] In this embodiment, the negative pressure suction structure 4 comprises a liquid suction chamber 45 and a Venturi tube 40 connected in series on the water supply channel 1, and a negative pressure port 41 is provided on the liquid suction chamber 45, which communicates with the outlet of the tank 2 via the liquid suction pipe 13. A pressurized nozzle 70 is provided within the liquid suction chamber 45, and the outlet of the pressurized nozzle 70 opens coaxially toward the inlet of the Venturi tube 40, and a gap is provided between the pressurized nozzle 70 and the Venturi tube 40, which connects the liquid suction chamber 45 to the Venturi tube 40. This allows the Venturi tube 40 to generate a relatively large negative pressure by using the high-pressure water flowing directly from the pressurized nozzle 70, and the negative pressure can act on the liquid suction chamber 45 through the gap. As a result, a negative pressure suction area 44 is formed in the liquid suction chamber 45, and furthermore, the additive mixture such as powder detergent solution, cleaning liquid solution, etc. in the tank 2 is drawn into the water supply channel 1 through the negative pressure port 41, whereby the high-pressure water flow directly performs high-pressure foaming mixing with the extracted additive mixture such as powder detergent solution, cleaning liquid solution, etc., and the uniformly mixed mixture is directly sprayed out from the downstream inlet of the water supply channel 1. [Example]

[0118] In this embodiment, a control method for an automatic feeding device is introduced.

[0119] S100: Taking water into a tank, and allowing the powder detergent and / or cleaning solution previously charged therein to flow into the tank together with the water taken in, to form a powder detergent solution;

[0120] S200 includes taking water into a water supply channel outside the tank, creating negative pressure using the flowing water, drawing the powder detergent solution in the tank into the water supply channel by the negative pressure, and discharging it outside together with the water supply flow.

[0121] With the above-mentioned configuration, additives such as powder detergent and liquid detergent can be first dissolved and mixed in the tank, and then extracted and dispensed into the water supply channel. This allows the dissolution and extraction of additives to be carried out in stages, achieving the effect of automatically mixing and dispensing additives such as powder detergent and liquid detergent, and further achieving the technical effect of enabling the washing machine to perform a high-concentration ingredient direct injection wash ("Essence Wash") using various forms of additives such as powder detergent and liquid detergent.

[0122] In this embodiment, the water flowing through the water supply channel is pressurized by the pressurizing structure to form a high-pressure water flow, which comes into contact with and mixes with the powder detergent solution drawn in by the negative pressure, improving the mixing uniformity.

[0123] In this embodiment, the powder detergent and / or cleaning liquid that has been added in advance first enters the input chamber of the input case, and the water flow taken into the tank flows directly into the input chamber. The water taken in flows into the outlet tank installed at the bottom of the tank together with the powder detergent and / or cleaning liquid, and they are mixed in the outlet tank to form a powder detergent solution.

[0124] Preferably, a mixing structure for improving the uniformity of mixing of the powder detergent and / or cleaning liquid is provided in the water outlet tub. The mixing structure may be any conventional structure capable of improving the uniformity of mixing. For example, it may be a stirring blade rotated by a drive motor, which directly stirs the water, powder detergent and / or cleaning liquid in the water outlet tub to form a powder detergent solution.

[0125] In this embodiment, step S100 of drawing water into the tank and step S200 of drawing water into the water supply channel outside the tank can be performed simultaneously or in reverse order. For example, step S100 is performed first to draw water into the tank 2 via the tank water supply channel 11, and then step S200 is performed to draw water into the input water supply channel 12 outside the tank 2 and extract and input an additive mixture such as a powder detergent solution.

[0126] As shown in FIG. 9, the control method for the automatic feeding device in this embodiment includes the following steps:

[0127] S1: Open the tank water supply channel 11 and close the input water supply channel 12. Water is drawn into the tank 2, and the powder detergent and / or cleaning solution previously placed in the input chamber 52 of the input case 5 flows into the water outlet tank at the bottom of the tank 2 together with the drawn water.

[0128] S2: When the water level in the water outlet tank (which may be the first water outlet tank 21 in the above-mentioned embodiment) reaches a set value, the tank water supply waterway 11 and the input water supply waterway 12 are simultaneously blocked, and water intake to the tank 2 is stopped.

[0129] S3, the powder detergent and / or cleaning solution in the water outlet tank is thoroughly mixed with the intake water to form a powder detergent solution.

[0130] S4: Open the input water supply channel 12 and shut off the tank water supply channel 11. Water is taken into the input water supply channel 12 outside the tank 2, and negative pressure is created using the flowing water. The negative pressure draws the powder detergent solution in the tank's water outlet tank into the input water supply channel 12 and discharges it to the outside together with the water supply flow.

[0131] In this embodiment, when performing step S3, a mixing structure installed in the water outlet tub can be simultaneously activated to promote mixing and dissolving of the powder detergent and / or cleaning liquid with water and improve uniformity, etc. The mixing structure may be a stirring blade rotated by a drive motor, which directly stirs the water, powder detergent and / or cleaning liquid in the water outlet tub to form a powder detergent solution with relatively high uniformity. Alternatively, the mixing structure may be a heating tube installed in the water outlet tub, which heats the water, powder detergent and / or cleaning liquid in the water outlet tub to improve the mixing speed, etc. (The mixing structure is not shown in the present application.)

[0132] In this embodiment, when executing the aforementioned step S3, after the time during which water intake into the tank has been stopped reaches a set value, and / or after it is detected that the uniformity of the additive mixture in the water outlet tank has reached a set value, it is determined that the additive mixture has been mixed and formed, and the execution of the subsequent step S4 is started.

[0133] 8, in this embodiment, the automatic dosing device 100 is the dosing device 100 described in any one of the above-mentioned embodiments 1 to 5, the tank water supply channel 11 is used to take water into the tank 2, the additive mixed liquid in the tank 2 is extracted by the input water supply channel 12, the inlets of the tank water supply channel 11 and the input water supply channel 12 are connected to two outlets of the water intake valve 6, each of which has one inlet and two outlets, and the inlet of the water intake valve 6 is connected to the water intake pipe of the washing machine. Thus, by using the switching control of the water intake valve 6, the control effect of selectively opening and closing the water supply to the tank water supply channel 11 and the input water supply channel 12 is realized. [Example]

[0134] In this embodiment, a washing machine is introduced. The dosing device 100 described in any one of the above-mentioned embodiments 1 to 6 is mounted on the washing machine, and the water supply source of the dosing device 100 is the washing machine's water intake pipe. The inlet of each water supply channel 1 is connected to the washing machine's water intake pipe via a water intake valve 6. This allows the washing water intake to be automatically switched and controlled via the water intake valve, and can also be controllably flowed into any one of the water supply channels 1 or a combination thereof.

[0135] In the present invention, by installing the aforementioned dosing device 100 on a washing machine, washing machine additives flow directly through the water supply channel 1 or the dosing channel 9 to a nozzle (the nozzle may have any conventional structure; preferably, a technical concept that maximizes the amount of additive mixture dispensed into the washing tub is adopted) and are sprayed directly into the washing tub 300 from the nozzle. This allows the washing machine additives to flow directly into the washing tub 300 from the water channel of the dosing device 100 without passing through the water receiving tub 200 outside the washing tub 300, and then be sprayed onto the load to be treated. As a result, the additive mixture is directly sprayed onto the load to be treated in the washing tub 300, thereby achieving the effect of direct ingredient spray washing ("refining washing"). Furthermore, with the above-mentioned configuration, a washing machine equipped with the dosing device 100 can mix the additives with a small amount of water in the water supply channel 1, and then spray the resulting additive mixture directly onto the load to be treated in the washing tub 300, thereby significantly improving the utilization rate of the dispensed additives.

[0136] The above description is merely a preferred embodiment of the present invention and does not limit the present invention in any way. The present invention has been disclosed above by way of a preferred embodiment, but is not intended to limit the present invention. Those skilled in the art may make slight changes or modifications using the technical content described above to create equivalent embodiments that are equivalently changed, without departing from the technical spirit 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 technical spirit of the present invention still fall within the spirit of the present invention. [Explanation of symbols]

[0137] Explanation of the main components in the figure: 100 dosing device, 200 water receiving tub, 300 washing tub, 1 water supply channel, 2 tank, 3 top cover, 31 first part, 32 second part, 4 negative pressure suction structure, 5 dosing case, 6 water intake valve, 7 pressurization structure, 8 water intake structure, 9 dosing channel, 11 tank water supply channel, 12 dosing water supply channel, 13 liquid suction pipe, 21 first water outlet tank, 22 second water outlet tank, 23 partition rib, 24 front shield plate, 231 first partition section, 232 second partition section, 233 notch, 211 powder detergent solution outlet, 212 groove, 221 main washing outlet, 40 Venturi tube, 41 negative pressure port, 42 liquid inlet pipe section, 43 liquid outlet pipe section, 44 negative pressure suction area, 45 Suction chamber, 421 reduced diameter pipe, 422 annular mounting portion, 431 straight pipe, 432 mounting groove, 433 seal ring, 401 reduced diameter section, 402 straight pipe section, 403 expanded diameter section, 51 powder detergent chamber, 52 charging chamber, 511 outlet, 70 pressure nozzle.

Claims

1. a dispenser case having a powder detergent chamber therein for dispensing powder detergent; A dosing device that uses a water intake stream from the dosing device to pour powder detergent in the powder detergent chamber into a tank to form a powder detergent solution, The dispensing device is a water supply channel, and is provided with a negative pressure suction structure attached to the water supply channel that creates negative pressure using the water flowing through the water supply channel, and the negative pressure suction structure is connected to a tank, and uses the negative pressure to draw the powder detergent solution in the tank into the water supply channel.

2. 2. The dispenser of claim 1, wherein the negative pressure suction structure is a Venturi tube attached to the water supply channel, the Venturi tube having a reduced diameter section and an enlarged diameter section arranged in sequence, a negative pressure port communicating the inside and outside of the channel provided at the connection point between the reduced diameter section and the enlarged diameter section, and the negative pressure port communicating with a powder detergent solution outlet installed at the bottom of the tank via a suction channel.

3. A water intake structure is provided on the top of the tank, and the water intake structure is connected to the tank water supply water channel. The water intake structure has a water outlet opening toward the powder detergent chamber of the dispenser case, and the powder detergent in the powder detergent chamber is poured into the tank using a flowing water stream. The dispenser according to claim 1, wherein the water outlet of the water intake structure is preferably opened downward and positioned above the upper opening of the powder detergent chamber.

4. The dosing device according to claim 1, characterized in that a partition rib is provided at the bottom of the tank to divide the lower part of the tank into a first water outlet tank and a second water outlet tank, and a powder detergent solution outlet and a main washing outlet are provided at the bottom of the first water outlet tank and the second water outlet tank, respectively, the powder detergent solution outlet communicates with a negative pressure port of the negative pressure suction structure via a suction pipe line, and the main washing outlet communicates with the dosing water channel of the dosing device.

5. The first and second water outlet tanks are arranged in front and behind each other, and the first water outlet tank is connected to the outlet of the powder detergent chamber so that the powder detergent flows in together with the water intake. Preferably, the bottom of the first water outlet tank has a slope that is inclined so that the powder detergent solution in the first water outlet tank flows toward the powder detergent solution outlet.

6. The tank further has at least one charging chamber on the charging case for storing a cleaning agent, and the cleaning agent in the charging chamber is charged into a second water outlet tank of the tank using a water intake structure installed on the upper part of the tank; Preferably, the bottom of the second water outlet tank has a sloped surface that is inclined to converge toward the main cleaning outlet, and is used to guide the liquid in the second water outlet tank to flow toward the main cleaning outlet.

7. a drawer section that can be pulled out from the front side is provided on the tank, the drawer section forms a supply case, and at least one powder detergent chamber for accommodating powder detergent and at least one supply chamber for accommodating a cleaning agent are provided on the supply case; Preferably, the tank has an opening at the front for pulling out the drawer portion to the outside, the front wall of the tank is composed of a front shielding plate positioned below the opening and extending vertically, and the height of the top end of the front shielding plate is higher than the height of the top end of the partition rib.

8. The outlet of the water supply channel and the outlet of the input channel respectively constitute a powder detergent input port and a cleaning liquid input port of the input device; Alternatively, the outlet of the water supply channel is connected to the input channel, and the outlet of the input channel forms an input port shared by the powder detergent solution and the cleaning liquid solution of the input device.

9. The dosing device according to any one of claims 1 to 8, further comprising a tank water supply conduit, a top lid provided on the top of the tank, a water intake structure provided on the top lid, the tank water supply conduit communicating with the water intake structure, and a water outlet of the water intake structure opening toward the powder detergent chamber below and used to draw water into the tank via the powder detergent chamber.

10. A washing machine having a washing tub for accommodating a load to be treated, further comprising the dosing device according to any one of claims 1 to 9, wherein the inlets of the water supply channels of the dosing device are connected to the water intake pipe of the washing machine, and the dosing port of the dosing device is connected to the inside of the washing tub.

11. at least two water supply lines, a tank water supply line and an input water supply line; A dosing device comprising: a tank having a dosing case attached thereto, the dosing case having a dosing chamber therein for storing the additive to be dosed; The tank water supply channel is connected to the water intake structure installed on the top of the tank, and uses the water intake to pour the target additives in the loading chamber into the tank, where they are dissolved and mixed in the tank to form a target additive mixed liquid; The water supply channel is connected to the outlet of the tank, and uses a flowing water stream to draw out the additive mixture mixed in the tank and to charge it to the outside together with the flowing water stream.

12. The input device has a water intake valve, which is a valve having one inlet and two outlets, and the inlet is controlled to be selectively connected to the two outlets, or to be simultaneously connected to the two outlets, or to be simultaneously blocked, and the two outlets are respectively connected to the inlets of the tank water supply water channel and the input water supply water channel; Alternatively, the charging device according to claim 11, characterized in that the water intake pipe of the charging device communicates with the tank water supply waterway and the inlet of the charging water supply waterway via a three-way joint.

13. 13. The dispenser of claim 12, wherein a removable dispenser case is provided within the tank, a powder detergent chamber is provided on the dispenser case, an outlet is provided at the bottom of the powder detergent chamber, and the upper opening serves as an inlet, and at least a water outlet pipe section of the tank water supply conduit is integrally installed on the top cover of the tank, and the outlet of the tank water supply conduit opens toward the upper opening of the powder detergent chamber, for allowing the outflow water to directly flow into the powder detergent chamber.

14. The dosing device according to claim 12, characterized in that the dosing water supply channel is installed outside the tank, a negative pressure suction structure is provided in the center of the dosing water supply channel, and the suction port of the negative pressure suction structure is connected to a powder detergent solution outlet installed at the bottom of the tank via a suction pipe line, and is used to extract the powder detergent solution into the dosing water supply channel.

15. a pressurizing structure for pressurizing the flowing water flow is further provided on the input water supply channel, and is used to form a pressurized water flow in the input water supply channel; the pressurizing structure is installed upstream of the negative pressure suction structure, and is used to use the pressurized water flow to push and mix the extracted powder detergent solution at a high speed; 15. The injection device according to claim 14, wherein the pressurizing structure is preferably a pressurizing nozzle formed of a tapered pipe whose radial dimension gradually narrows along the water flow direction.

16. 16. The dispenser according to claim 15, wherein the negative pressure suction structure is a Venturi tube, a pipe section is provided on the Venturi tube to change the flow rate of the flowing water by changing the pipe diameter, a negative pressure suction area is provided on the pipe section to generate negative pressure by using the flowing water, a negative pressure port is provided to communicate the inside and outside of the negative pressure suction area, and the negative pressure port is connected to a powder detergent outlet provided at the bottom of the tank via a liquid suction pipe.

17. 17. The charging device according to claim 16, wherein the negative pressure suction structure comprises a suction chamber and a Venturi tube connected in series on the charging water supply channel, a pressure nozzle provided in the suction chamber and communicating with an inlet of the suction chamber, and the pressure nozzle is used to pressurize and accelerate the water flow that has flowed into the Venturi tube.

18. 18. A dosing device according to claim 17, wherein the pressure nozzle, the suction chamber and the Venturi tube are all arranged coaxially, a gap is provided between the pressure nozzle and the inner wall of the suction chamber, a negative pressure port is opened on the side wall of the suction chamber and the negative pressure port communicates with the Venturi tube through the gap, and a negative pressure suction region capable of generating negative pressure is formed in the suction chamber by applying negative pressure generated by the Venturi tube to the suction chamber.

19. 19. The dosing device according to any one of claims 11 to 18, wherein the outlet of the dosing water supply channel constitutes the dosing inlet of the dosing device.

20. A washing machine having a washing tub for accommodating a load to be treated, further comprising the dosing device according to any one of claims 11 to 19, wherein the inlets of the water supply channels of the dosing device are connected to the water intake pipe of the washing machine, and the dosing port of the dosing device is connected to the inside of the washing tub.

21. a liquid inlet pipe section having a liquid inlet pipe section for receiving the fluid; a liquid outlet pipe section for allowing a fluid to flow out, The outlet of the liquid inlet pipe section is inserted into the inlet of the liquid outlet pipe section, and the liquid inlet pipe section and the liquid outlet pipe section are connected to form a flow path through which the feedwater flows; A negative pressure suction structure characterized in that a gap between the outer wall of the outlet portion of the liquid inlet pipe section and the inner wall of the inlet portion of the liquid outlet pipe section forms a negative pressure suction area where negative pressure is generated by the water flow through the flow path, and a negative pressure port is provided on the outer wall of the liquid outlet pipe section to connect the negative pressure suction area to the outside.

22. The outlet of the liquid inlet pipe section is a tapered pipe whose diameter gradually decreases along the water flow direction, The inlet of the liquid outflow pipe section is a straight pipe fitted coaxially on the outer wall of the diameter-reducing pipe, and the inner diameter of the straight pipe is larger than the maximum outer diameter of the diameter-reducing pipe; 22. The negative pressure suction structure according to claim 21, wherein the downstream portion of the straight pipe is a Venturi tube, the Venturi tube is coaxially arranged downstream of the reduced diameter pipe of the liquid inlet pipe section, and the minimum outer diameter of the reduced diameter pipe is smaller than the maximum inner diameter of the Venturi tube.

23. The Venturi tube has a diameter-reducing section, a straight section, and a diameter-expanding section arranged in this order along the water flow direction, 23. The negative pressure suction structure according to claim 22, wherein the minimum inner diameter of the diameter-reducing section is larger than the minimum inner diameter of the diameter-reducing tube and smaller than the maximum inner diameter of the diameter-reducing tube.

24. 23. The negative pressure suction structure according to claim 22, wherein the upstream end of the straight pipe at the inlet of the liquid outlet pipe section is sealedly connected to the outlet of the liquid inlet pipe section, and the downstream end is connected to the inlet end of the Venturi tube, and a negative pressure port communicating the inside and outside of the pipe is provided on the pipe wall at the center.

25. a radially protruding annular mounting portion is provided on an outer wall of the liquid outlet section of the liquid inlet pipe section, and a mounting groove is provided on an outer wall of the upstream end of the straight pipe, protruding radially outward, into which the annular mounting portion is inserted and mounted; The negative pressure suction structure according to claim 24, wherein at least one seal ring is provided at a joint between the annular mounting portion and the mounting groove to seal the insertion connection between the liquid inlet pipe section and the liquid outlet pipe section.

26. The negative pressure suction structure of claim 25, characterized in that the annular mounting portion is provided at the large diameter end of the reduced diameter pipe of the liquid inlet pipe section, and the axial length of the reduced diameter pipe is equal to or greater than the axial length of the straight pipe and is smaller than the sum of the axial lengths of the straight pipe and the expanded diameter section.

27. 25. The negative pressure suction structure according to claim 24, wherein the inner diameter of the straight pipe is larger than the maximum inner diameter of the Venturi tube, and the downstream end of the straight pipe and the large diameter end of the reduced diameter section are joined via a transition corner.

28. 25. The negative pressure suction structure according to claim 24, wherein the hole diameter of the negative pressure port is smaller than the maximum inner diameter of the Venturi tube and larger than the minimum inner diameter of the diameter-reducing tube.

29. A dosing device having a tank that mixes additives added by a user with intake water to form a mixed liquid, further comprising a water supply channel to which the negative pressure suction structure described in any one of claims 21 to 28 is attached, wherein the inlet of the liquid inlet pipe section of the negative pressure suction structure is connected to the upstream of the water supply channel, the outlet of the liquid outlet pipe section is connected to the downstream of the water supply channel, and the negative pressure port is connected to the outlet of the tank via the liquid suction channel, and the dosing device uses the negative pressure generated by the flowing water flow to suck and dosing the mixed liquid in the tank into the water supply channel.

30. A washing machine having a washing tub, further comprising the dosing device according to claim 29, wherein the outlet of the water supply channel is connected to the washing tub and is used to dosing the mixed liquid into the washing tub.

Images