A nozzle structure, an additive dispensing device, and a washing machine

Abstract

This invention provides a nozzle structure comprising: a spray pipe, a nozzle at the outlet end of the spray pipe, a spray outlet on the nozzle, and a flow channel within the nozzle to guide water from the spray pipe to the spray outlet and increase the tangential acceleration of the water flow at the spray outlet. This configuration increases the tangential velocity of the water flow towards the spray outlet within the nozzle structure, causing the water flow at the spray outlet to disperse in all directions, thus achieving a significant technological advancement in increasing the water coverage area of ​​the nozzle structure. This invention also provides an additive dispensing device and a washing machine. The dispensing device includes: a water supply path; a dispensing unit for dispensing additives into the water supply path; and the outlet of the water supply path is connected to the aforementioned nozzle structure. This invention, through the aforementioned device, allows the additive solution to flow directly from the water supply path to the nozzle structure, increasing the water pressure at the nozzle structure and further expanding the coverage area of ​​the sprayed additive solution.

Description

Technical Field

[0001] This invention belongs to the technical field of clothing processing equipment, specifically relating to an additive dispensing device for a washing machine, and more particularly to a nozzle structure for dispensing additive solution in a washing machine. Background Technology

[0002] Existing washing machines generally have an outer drum for holding washing water, and a rotatable inner drum inside the outer drum. The inner drum has a dewatering hole that connects the inside and outside, so that the washing water flowing into the outer drum can flow back and forth between the inside and outside of the inner drum through the dewatering hole. This allows the washing water to come into contact with the load to be processed in the inner drum and to process the load using the washing water.

[0003] The existing method of adding additives to washing machines is as follows: The additive is added to a pipe connected to the outer drum of the washing machine via an additive dispensing device, and then flows into the outer drum along the pipe. Therefore, the additive dispensed in this method is located inside the outer drum but outside the inner drum, and cannot directly contact the load inside the inner drum.

[0004] Then, during the washing cycle, the added additive mixes with the wash water flowing into the outer drum. A portion of this additive-mixed wash water flows into the inner drum through the dehydration holes, coming into contact with the load inside. Only then can a small portion of the additive mixed in the wash water come into contact with the load and exert its effect. Therefore, traditional additive dispensing methods suffer from low additive utilization efficiency and additive waste.

[0005] To improve detergent utilization, it is best to add the additive directly into the inner drum of the washing machine so that the additive comes into direct contact with the washing load inside the drum. However, the water flow tangential force at the spray outlet of the existing nozzle structure is small, which results in a short spray distance and an inability to fully cover the inside of the drum.

[0006] In view of this, the present invention is hereby proposed. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a nozzle structure to achieve the purpose of increasing the spray coverage area.

[0008] To achieve the above-mentioned objectives, the basic concept of the technical solution adopted by this invention is as follows:

[0009] The present invention provides a nozzle structure, comprising: a jet pipe, a nozzle at the outlet end of the jet pipe, a jet outlet at the nozzle, and a flow channel inside the nozzle for guiding water in the jet pipe to the jet outlet and increasing the tangential acceleration of the water flow at the jet outlet.

[0010] Furthermore, the nozzle has a water outlet chamber inside, and the water outlet end of the spray pipe has a connector that protrudes outward and is inserted into the water outlet chamber. There is a gap between the outer wall of the connector and the inner wall of the water outlet chamber. The gap forms a flow channel, which is connected to the spray pipe via the connector and also directly connected to the spray outlet.

[0011] Furthermore, the insertion end of the connector is closed, and the other end is connected to the spray pipe. There are intervals between the outer wall of the connector, the closed end and the inner wall of the water outlet chamber. The intervals form a flow channel. A water passage hole is opened on the side wall of the connector near the closed end. The water passage hole connects the internal channel of the connector with the flow channel.

[0012] Preferably, the sidewall of the connector has multiple water passage holes arranged at intervals.

[0013] Furthermore, the inner circumferential diameter of the jet pipe is larger than the inner diameter of the connector, the inner diameter of the connector is larger than the width of the water passage hole, and the width of the water passage hole is larger than the width of the flow channel.

[0014] Preferably, the orifice diameter of the jet outlet is smaller than the inner diameter of the connector and larger than the width of the flow channel.

[0015] Furthermore, the nozzle includes an end cap, with a spray outlet at the center of the end cap; the outer periphery of the end cap is provided with an annular fold that bends toward the spray pipe and extends along the axial direction of the spray pipe, the extended end of the annular fold is sealed to the water outlet end of the spray pipe, and the interior of the annular fold forms a water outlet cavity.

[0016] Preferably, the end of the folded edge is fitted to the end face of the outlet end of the injection pipe, and the fitted area is sealed and connected by a fusion process.

[0017] Preferably, the injection outlet is a circular hole with a radial dimension smaller than the inner diameter of the injection pipe.

[0018] Furthermore, the outlet end of the jet pipe is provided with a corresponding connector that is inserted into the water outlet cavity. The connector is coaxially arranged with the jet pipe. The outer radial dimension of the connector is larger than the pipe diameter at the outlet end of the jet pipe and smaller than the inner circumferential diameter of the annular fold. The inner radial dimension of the connector is smaller than the pipe diameter at the outlet end of the jet pipe. This ensures that at least part of the end face of the connector coincides with the end face of the outlet end of the jet pipe in the axial direction of the jet pipe. The coincident part is fitted and sealed, so as to achieve the effect that the water in the jet pipe can only flow into the water outlet cavity through the connector, be pressurized through the flow channel provided in the water outlet cavity, and then be sprayed out through the jet outlet.

[0019] Preferably, the connector and the spray pipe are integrated.

[0020] After adopting the above technical solution, the nozzle structure of the present invention has the following beneficial effects:

[0021] By employing the above-described design, the tangential velocity of the water flow towards the spray outlet within the nozzle structure can be increased, causing the water flow at the spray outlet to disperse in all directions. This achieves a cone-shaped, divergent spray effect from the nozzle structure's spray outlet, resulting in a significant technological advancement in increasing the water coverage area of ​​the nozzle structure. More significantly, this nozzle structure increases the spray area of ​​the additive solution, allowing the additive solution dispensed by the additive dispensing device into the inner drum through the nozzle structure to fully contact the load within the drum, thereby achieving a significant technological advancement in improving the washing machine's washing performance.

[0022] Another object of the present invention is to provide an additive dispensing device to achieve the purpose of dispensing additives directly through a water supply channel.

[0023] To achieve the above-mentioned objectives, the technical solution adopted is as follows:

[0024] An additive dispensing device for a washing machine includes: a water supply path; a dispensing unit for dispensing an additive into the water supply path; and an outlet of the water supply path connected to the aforementioned nozzle structure.

[0025] Another objective of the present invention is to provide a washing machine equipped with the above-mentioned additive dispensing device, so as to achieve the purpose of directly dispensing additives into the inner drum of the washing machine, thereby achieving the effect of direct contact between the dispensed detergent and the load to be processed in the inner drum, and improving the detergent utilization rate.

[0026] This invention, through the aforementioned device, allows additives to be directly dispensed via a water channel on the dispensing device, avoiding the additives flowing through the water box. This not only shortens the flow path of the additives but also reduces the amount of rinsing water required for additive dispensing, significantly improving additive utilization. Simultaneously, the additive solution flowing from the water channel is directly sprayed through nozzles, increasing the coverage area of ​​the sprayed additive solution and allowing it to be directly sprayed onto the load to be treated deep within the inner cylinder.

[0027] To achieve the above-mentioned objectives, the technical solution adopted is as follows:

[0028] A washing machine equipped with the above-mentioned additive dispensing device includes: an inner drum, a nozzle structure installed at the opening of the inner drum, and the spray outlet of the nozzle structure opening towards the inside of the inner drum.

[0029] Through the above-described configuration, the present invention enables a washing machine equipped with the above-described additive dispensing device to directly spray the additive solution formed by mixing the additive with a small amount of incoming water in the water supply circuit onto the load to be processed inside the inner drum, thereby significantly improving the utilization rate of the dispensed additive.

[0030] Furthermore, the inner drum is fitted into the outer drum, the outer drum and the inner drum are coaxially arranged and have openings on the same side, and a window gasket that protrudes outward is connected to the opening of the outer drum; the nozzle structure is set on the window gasket, the spray pipe of the nozzle structure passes through the window gasket, the nozzle is located on the inner circumference of the window gasket, and the axis of the spray pipe is inclined downward and on one side inside the inner drum of the washing machine.

[0031] Furthermore, the nozzle structure is located at the very top of the annular window pad; the axis of the injection pipe and the axis of the inner cylinder are in the same plane, and the angle between the axis of the injection pipe and the axis of the inner cylinder is 20 degrees to 60 degrees.

[0032] At the same time, the present invention has a simple structure, significant effects, and is suitable for widespread use.

[0033] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0034] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0035] Figures 1 to 3 These are structural schematic diagrams of the washing machine from different perspectives in embodiments of the present invention;

[0036] Figure 4 This is an embodiment of the present invention. Figure 3 Schematic diagram of the AA cross-section structure;

[0037] Figure 5 This is a schematic diagram of the washing machine structure after the first part of the top cover has been removed in an embodiment of the present invention;

[0038] Figure 6 This is a top view of the washing machine after the first part of the top cover has been removed in an embodiment of the present invention.

[0039] Figure 7 and Figure 8 This is a schematic diagram of the washing machine structure after the additive dispensing device explodes in an embodiment of the present invention;

[0040] Figure 9 This is a schematic diagram of the nozzle structure in an embodiment of the present invention.

[0041] Figure 10 This is an embodiment of the present invention. Figure 9 Schematic diagram of the BB cross-section structure;

[0042] Figure 11 and Figure 12 These are exploded structural diagrams of the nozzle structure from different perspectives in embodiments of the present invention.

[0043] Description of main components in the diagram:

[0044] 100. Dispensing device; 200. Outer cylinder; 300. Inner cylinder; 400. Window gasket; 500. Nozzle structure; 600. Conduit; 1. Water supply path; 2. Outer shell; 3. Top cover; 31. First part; 32. Second part; 4. Liquid storage chamber; 5. Liquid storage box; 6. Pump; 7. Communicating vessel; 8. Liquid suction channel; 11. Outlet; 12. Inlet; 13. Suction port; 51. Spray pipe; 52. Nozzle; 53. Spray outlet; 54. Water outlet chamber; 55. Connector; 56. Flow channel; 57. End cap; 58. Annular folded edge; 59. Water passage hole; 81. Inlet; 82. Outlet.

[0045] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0047] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] like Figures 1 to 8As shown in the illustration, this invention also introduces a washing machine, comprising: an outer drum 200 for holding water, an inner drum 300 rotatable for holding a load to be processed installed inside the outer drum 200, and an additive dispensing device 100 for directly dispensing additives into the inner drum 300. Through the above configuration, the washing machine can achieve the effect of directly dispensing additives into the inner drum 300 and directly spraying the dispensed additives onto the load to be processed within the inner drum 300, thereby achieving a significant technological advancement in improving the utilization rate of additives.

[0050] like Figures 1 to 8 As shown, the additive dispensing device 100 in this embodiment of the invention includes: a water supply path 1 for supplying water into the additive dispensing device 100; a dispensing unit for dispensing additives into the water supply path 1; and a nozzle structure 500, with the outlet 11 of the water supply path 1 connected to the nozzle structure 500, and the nozzle structure 500 facing the inner drum 300 of the washing machine. When the additive is dispensed, a small amount of water flows into the water supply path, causing the additive to mix with the small amount of water in the water supply path 1 to form an additive solution. The additive solution supplied by the water supply path 1 can be directly sprayed onto the load to be processed inside the inner drum 300 through the nozzle structure 500, thereby significantly improving the utilization rate of the dispensed additive.

[0051] The above-mentioned device allows the additive to be directly dispensed through the water channel provided on the dispensing device 100, avoiding the additive from flowing through the water box. This not only reduces the flow path of the additive but also reduces the amount of rinsing water required for additive dispensing, greatly improving the utilization rate of the additive.

[0052] Example 1

[0053] like Figures 1 to 12 As shown in the figure, this embodiment introduces a nozzle structure, which includes: a spray pipe 51, a nozzle 52 at the outlet end of the spray pipe 51, a spray outlet 53 on the nozzle 52, and a flow channel 56 inside the nozzle 52 to guide the water in the spray pipe 51 to the spray outlet 53 and increase the tangential acceleration of the water flow to the spray outlet 53.

[0054] By employing the above-described design, the tangential velocity of the water flow towards the spray outlet within the nozzle structure can be increased, causing the water flow at the spray outlet to disperse in all directions. This achieves a cone-shaped, divergent spray effect from the nozzle structure's spray outlet, resulting in a significant technological advancement in increasing the water coverage area of ​​the nozzle structure. More significantly, this nozzle structure increases the spray area of ​​the additive solution, allowing the additive solution dispensed by the additive dispensing device into the inner drum through the nozzle structure to fully contact the load within the drum, thereby achieving a significant technological advancement in improving the washing machine's washing performance.

[0055] like Figures 9 to 12As shown, in this embodiment, the nozzle 52 is correspondingly fastened to the outlet end of the spray pipe 51. The connection between the nozzle 52 and the spray pipe 51 is sealed by a welding process, so that the nozzle 52 and the spray pipe 51 are connected as one unit by the welding process, which can improve the overall strength of the nozzle structure.

[0056] In this embodiment, the nozzle 52 is provided with a water outlet cavity 54 inside, and the water outlet end of the spray pipe 51 is provided with a connector 55 that protrudes outward and is inserted into the water outlet cavity. There is a gap between the outer wall of the connector 55 and the inner wall of the water outlet cavity 54. The gap forms a flow channel 56. The flow channel 56 is connected to the spray pipe 51 via the connector 55 and is also directly connected to the spray outlet 53.

[0057] In this embodiment, the insertion end of the connector 55 is closed, and the other end is connected to the spray pipe 51. The outer wall of the connector 55, the closed end, and the inner wall of the water outlet chamber 54 are all spaced apart, and the spaced intervals form a flow channel 56. A water passage hole 59 is opened on the side wall of the connector 55 near the closed end, and the water passage hole 59 connects the internal channel of the connector 55 with the flow channel 56.

[0058] By allowing the water from the nozzle structure to flow into the water channel through the side wall of the connector, the water can flow to the spray outlet through the flow channel section perpendicular to the spray outlet axis. This avoids the water flowing directly out along the spray pipe axis and also achieves the effect of increasing the tangential water flow acceleration at the spray outlet.

[0059] Preferably, in this embodiment, in order to achieve the dispersion effect of the water flow, the following settings are made: multiple water passage holes 59 are arranged at intervals on the side wall of the connector 55, and the spacing between adjacent water passage holes 59 is set to be equal, so that water in the connector 55 can flow into the flow channel 56 from the water passage holes 59 in different directions, so as to achieve the effect of flowing to the jet outlet 53 from multiple different radial directions, increasing the radial acceleration of the water flow in different directions at the jet outlet 53, thereby achieving a significant technical advancement in improving the dispersion degree of the water flow at the jet outlet 53 and increasing the coverage area of ​​the jet water.

[0060] In this embodiment, the inner diameter of the spray pipe 51 is larger than the inner diameter of the connector 55, the inner diameter of the connector 55 is larger than the width of the water passage 59, and the width of the water passage 59 is larger than the width of the flow channel 56. Through this arrangement, the internal water path of the nozzle structure gradually decreases in width, and the flowing water is pressurized by each narrowing section to further improve the water flow dispersion effect at the spray outlet and increase the spray coverage area. In this embodiment, the width of the flow channel 56 is the cross-sectional width for water flow; the flow channel 56 is divided into two parts: the first part is the gap between the outer peripheral wall of the connector 55 and the inner peripheral wall of the outlet cavity 54, and the distance of this gap in the radial direction of the spray pipe 51 is the width of the first part of the flow channel 56; the second part is the gap between the closed end of the connector 55 and the lower end face of the outlet cavity 54, and the distance of this gap in the axial direction of the spray pipe 51 is the width of the second part of the flow channel 56.

[0061] In this embodiment, the aperture of the spray outlet 53 is smaller than the inner diameter of the connector 55 and larger than the width of the flow channel 56, so as to ensure that the water flow from the flow channel 56 to the spray outlet 53 can be radially dispersed from the spray outlet 53 to achieve the effect of spraying a cone-shaped divergent water flow outward from the spray outlet 53.

[0062] In this embodiment, the nozzle 52 includes an end cap 57, and a spray outlet 53 is provided at the center of the end cap 57. The outer periphery of the end cap 57 is provided with an annular folded edge 58 that bends toward the spray pipe 51 and extends along the axial direction of the spray pipe 51. The extended end of the annular folded edge 58 is sealed to the water outlet end of the spray pipe 51, and the interior of the annular folded edge 58 forms a water outlet cavity 54.

[0063] In this embodiment, the end of the annular folded edge 58 is fitted to the end face of the outlet end of the spray pipe 51, and the fitted area is sealed and connected by a welding process.

[0064] In this embodiment, the injection outlet 53 is a circular hole with a radial dimension smaller than the inner diameter of the injection pipe 51, and the injection outlet 53 and the connector 55 are both coaxially arranged with the injection pipe 51.

[0065] In this embodiment, the outlet end of the spray pipe 51 is provided with a connector 55 that is inserted into the water outlet cavity 54. The connector 55 is coaxially arranged with the spray pipe 51. The outer radial dimension of the connector 55 is larger than the pipe diameter of the outlet end of the spray pipe 51 and smaller than the inner diameter of the annular fold 58. The inner radial dimension of the connector 55 is smaller than the pipe diameter of the outlet end of the spray pipe 51, so that at least a part of the end face of the connector 55 coincides with the end face of the outlet end of the spray pipe 51 in the axial direction of the spray pipe 51, and the overlapping part is correspondingly fitted and sealed. This achieves the effect that the water in the spray pipe 51 can only flow into the water outlet cavity 54 through the connector, be pressurized by the flow channel 56 provided in the water outlet cavity 54, and then be sprayed out through the spray outlet 53.

[0066] Preferably, in this embodiment, the connector 55 and the spray pipe 51 are integrally formed.

[0067] Example 2

[0068] like Figures 1 to 8 As shown in the figure, this embodiment introduces an additive dispensing device for a washing machine, which includes: a water supply line 1; a dispensing unit for dispensing additives into the water supply line 1; the outlet of the water supply line 1 is connected to any of the above-described nozzle structures 500, and the nozzle structure 500 sprays the additive solution supplied by the water supply line into the inner drum 300 of the washing machine.

[0069] In this embodiment, the water supply path 1 is integrated into the outer casing 2 of the additive dispensing device 100. The outlet 11 of the water supply path 1 is located on the outside of the outer casing 2, and the nozzle structure is located outside the outer casing 2. The outlet 11 of the water supply path 1 is connected to the nozzle structure via a conduit 600. By integrating the water supply path 1 into the outer casing 2 of the additive dispensing device 100, and directly connecting the outlet 11 of the water supply path 1 to the nozzle structure, the additive extracted through the water supply path 1 and the incoming water are sprayed out together. This achieves the purpose of the additive dispensing device 100 spraying the additive directly outward from the nozzle structure without going through the water box part of the dispensing device 100.

[0070] like Figure 7 and Figure 8 As shown, in this embodiment, the top of the outer shell 2 of the additive dispensing device 100 is a top cover 3. A water supply path 1 is located inside the top cover 3, and the outlet 11 of the water supply path 1 is exposed on the outer periphery of the top cover 3. The inlet end of the conduit 600 is connected to the outlet 11 of the water supply path 1, and the outlet end of the conduit 600 is connected to a nozzle structure 500 located outside the outer shell 2. Preferably, the top cover 3 includes a first part 31 and a second part 32 that interlock with each other. The first part 31 and the second part 32 are spliced ​​together to form the water supply path 1 at the interface. More preferably, the first part 31 and the second part 32 of the top cover 3 are connected by a welding process to form a closed, pressurized water channel structure inside.

[0071] Thus, the water supply path 1 of the additive dispensing device 100 is integrated on the upper cover 3, so that the water inlet of the dispensing device 100 and the additive are directly dispensed through the water supply path 1 inside the upper cover 3, thereby achieving the effect of the additive flowing out directly from the outlet 11 on the outer periphery of the upper cover 3 for dispensing.

[0072] In this embodiment of the invention, the dispensing unit includes a storage chamber 4 for storing additives, and the storage chamber 4 is connected to the water supply line 1; the dispensing device 100 is also provided with a power unit to provide power for pumping the additives in the storage chamber 4 into the water supply line.

[0073] like Figures 1 to 8As shown, in this embodiment, the power unit is a pump 6 located on the liquid extraction channel 8 connected to the liquid storage chamber 4 and the water supply line 1, providing driving force for the liquid in the liquid extraction channel 8 to flow from the liquid storage chamber 4 to the water supply line 1. In this embodiment, the liquid extraction channel 8 is also integrated inside the upper cover 3. The inlet 81 of the liquid extraction channel 8 is connected to the liquid storage chamber 4 via a connector 7, the outlet 82 of the liquid extraction channel 8 is connected to the inlet of the pump 6, and the outlet of the pump 6 is connected to the suction port 13 provided on the water supply line 1. By controlling the start and stop of the pump 6, the additive in the liquid storage chamber 4 is pumped to the water supply line 1 for dispensing.

[0074] In this embodiment of the invention, the power unit can also be configured with other existing structures, such as: the power unit is a suction pump, the suction port of the suction pump is connected to the water supply line 1, so that a negative pressure is formed in the water supply line 1, and the additive in the storage chamber 4 is drawn to the water supply line 1 through the suction channel 8.

[0075] And / or, the power unit may also be a venturi tube installed on the water supply line 1. The venturi tube has a negative pressure area with a sudden change in pipe diameter. The negative pressure area can be formed by the flow of water. The negative pressure area of ​​the venturi tube is provided with a suction port, which is connected to the liquid storage chamber 4 through the liquid extraction channel 8 (not shown in the figure).

[0076] In this embodiment, the additive dispensing device 100 includes multiple liquid storage chambers 4, each of which can hold different types of additives, such as detergents, fabric softeners, fragrances, disinfectants, etc. The dispensing device 100 is equipped with a control device, which is used to control one or a combination of liquid storage chambers 4 to be connected to the water supply line 1, so as to dispense any or multiple combinations of additives into the water supply line 1.

[0077] In this embodiment of the invention, the control device can be configured as any existing structure capable of achieving the above-mentioned functions; for example:

[0078] In this embodiment of the invention, each liquid storage chamber 4 can be connected to the water supply circuit 1 through a flow channel equipped with a control valve, so as to achieve the effect of separate or combined on / off control of each flow channel by controlling the opening and closing of each control valve, thereby achieving the purpose of independently adding any type of additive or adding multiple types of additives at the same time.

[0079] Each liquid storage chamber 4 can also be connected to a different inlet of the same reversing valve in a one-to-one correspondence. The outlet of the reversing valve is connected to the water supply circuit 1. The reversing valve is equipped with a rotatable valve core, which is used to control the connection between any or a combination of inlets and outlets. This can also achieve the purpose of independently adding any type of additive or adding multiple types of additives at the same time (not shown in the attached figure).

[0080] like Figures 1 to 8 As shown, in this embodiment, the outer shell 2 of the dispensing device 100 is provided with a liquid storage box 5. The liquid storage box 5 is installed in the outer shell 2 of the additive dispensing device 100 by being able to be pulled outward. The liquid storage box 5 is provided with at least one liquid storage chamber 4 for storing additives. Each liquid storage chamber 4 on the liquid storage box 5 is connected to the water supply line 1 via a connector 7. The connector 7 is provided with a control device for controlling the selective or combined connection of each liquid storage chamber 4 to the water supply line 1.

[0081] In this embodiment, the inlet 12 of the water supply path 1 is located on the outer wall of the outer casing 2. The inlet 12 of the water supply path 1 is connected to the washing machine's water inlet pipe, so that washing water can flow into the water supply path 1 through the inlet 12. The outer casing 2 of the additive dispensing device 100 is provided with a water inlet connector, and the two ends of the water inlet connector are respectively connected to the inlet 12 of the water supply path 1 and the washing machine's water inlet pipe; more preferably, a control valve for controlling the on / off of the water path is installed at the water inlet connector.

[0082] like Figures 6 to 8 As shown, in this embodiment, a suction port 13 is provided in the middle of the water supply channel 1. The suction port 13 is connected to the dispensing unit, so that the additive is drawn into the water supply channel 1 from the suction port 13. Preferably, the suction port 13 is connected to the outlet of the pump 6, the inlet of the pump 6 is connected to the outlet 82 of the liquid extraction channel 8, the inlet 81 of the liquid extraction channel 8 is connected to the outlet of the communicating vessel 7, and the multiple inlets of the communicating vessel 7 are connected one-to-one with each liquid storage chamber 4, so as to realize that the additive in the liquid storage chamber 4 is drawn into the water supply channel 1 through the above-mentioned channels under the driving action of the pump 6.

[0083] like Figure 6 As shown, in this embodiment, the portion of the water supply path 1 downstream of the suction port 13 can mix the additive flowing into the water supply path 1 with the incoming water to form an additive solution. Preferably, the suction port 13 is located close to the inlet 12 of the water supply path 1 to maximize the length of the water supply path 1 downstream of the suction port 13, thereby increasing the space in the downstream portion of the water supply path 1 where the additive and water are mixed, and thus improving the mixing uniformity between the additive and the incoming water.

[0084] Example 3

[0085] like Figures 1 to 12 As shown, this embodiment also introduces a washing machine equipped with the additive dispensing device 100 described in Embodiment 2 above, which includes: an outer drum 200, an inner drum 300 with an opening on the same side as the outer drum 200, a window gasket 400 extending outward from the opening of the outer drum 200, a nozzle structure 500 installed at the window gasket 400, and the spray outlet 53 of the nozzle structure 500 being located on the inner circumference of the window gasket 400 and spraying the additive solution toward the opening of the inner drum 300.

[0086] In this embodiment, the window gasket 400 is an annular structure extending circumferentially around the opening of the outer drum 200; the nozzle structure 500 is located on top of the annular window gasket 400, so that the additive solution sprayed by the nozzle structure 500 can maximize the spray distance and thus increase the coverage area of ​​the additive solution. In this embodiment, the spray pipe 51 of the nozzle structure 500 passes through the window gasket 400, and the nozzle 52 is located on the inner circumference of the annular window gasket 400. The axis of the spray pipe 51 is inclined downwards and towards the inside of the washing machine inner drum 300. Preferably, the extended line of the axis of the spray pipe 51 intersects the bottom of the inner drum 300 or the lower end of the inner drum sidewall near the bottom of the inner drum, so as to maximize the spray coverage area of ​​the nozzle structure.

[0087] In this embodiment, the axis of the spray pipe 51 is in the same plane as the axis of the inner drum 300 of the washing machine, so that the nozzle structure 500 is located at the center of the inner drum 300 in the horizontal direction. This ensures that the nozzle structure 500 can uniformly spray the additive solution onto both sides of the inner drum 300, improving the contact between the load and the additive solution. Preferably, the angle between the axis of the spray pipe 51 and the axis of the inner drum 300 of the washing machine is 20 degrees to 60 degrees, in order to maximize the coverage area of ​​the additive solution sprayed from the nozzle.

[0088] In this embodiment, the washing machine is equipped with an independently installed conduit 600 located outside the outer casing of the additive dispensing device 100 and outside the outer drum 200. The two ends of the conduit 600 are respectively connected to the inlet of the nozzle structure 500 and the outlet 11 of the water supply path 1, allowing the additive solution supplied by the water supply path 1 to be directly guided through the conduit 600 to the nozzle structure 500, achieving the effect of direct spraying into the inner drum 300 of the washing machine. Preferably, the conduit 600 is made of a material such as rubber, and it is capable of bending and deformation.

[0089] This invention, by incorporating the aforementioned additive dispensing device 100 into a washing machine, allows the washing machine's additive to flow directly through the water supply channel 1 to the nozzle structure 500, and then be directly sprayed into the inner drum 300 from the nozzle structure 500. This achieves the goal of directly spraying the additive solution into the inner drum 300, bypassing the water tank and the outer drum 200 outside the inner drum 300. Furthermore, this design enables the washing machine equipped with the additive dispensing device 100 to directly spray the additive solution formed by mixing the additive with a small amount of incoming water in the water supply channel 1 onto the inner drum 300, thereby significantly improving the utilization rate of the dispensed additive.

[0090] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An additive dispensing device, comprising: Water supply system; The dispensing unit is used to dispense additives into the water supply system. Its features are: The outlet of the water supply circuit is connected to the nozzle structure; the nozzle structure includes: a spray pipe, characterized in that: the outlet end of the spray pipe is provided with a nozzle, the nozzle is provided with a spray outlet, and the nozzle is provided with a flow channel to guide the water in the spray pipe to the spray outlet and increase the tangential acceleration of the water flow at the spray outlet. The top of the outer shell of the additive dispensing device is a cover, and the water supply path is located inside the cover. The outlet of the water supply path is exposed on the outer periphery of the cover. An independent conduit is set outside the outer shell of the additive dispensing device. The inlet end of the conduit is connected to the outlet of the water supply path, and the outlet end of the conduit is connected to the nozzle structure located outside the outer shell. The additive and water drawn out through the water supply path are sprayed out together, so that the additive dispensing device can spray out directly from the nozzle structure without going through the water box part of the dispensing device. The top cover consists of a first part and a second part that interlock with each other. The first part and the second part are connected by a welding process to form a closed, pressurized water supply channel inside.

2. The additive dispensing device according to claim 1, characterized in that, The radial width of the flow channel gradually decreases, and the water flow is pressurized by each narrowing section.

3. The additive dispensing device according to claim 1, characterized in that, The nozzle has a water outlet chamber inside, and the water outlet end of the spray pipe has a connector that protrudes outward and is inserted into the water outlet chamber. There is a gap between the outer wall of the connector and the inner wall of the water outlet chamber. The gap forms a flow channel. The flow channel is connected to the spray pipe through the connector and is also directly connected to the spray outlet.

4. The additive dispensing device according to claim 1, characterized in that, The flow channel is divided into two parts. The first part is the gap between the outer peripheral wall of the connector and the inner peripheral wall of the water outlet cavity. The distance of the gap in the radial direction of the jet pipe is the width of the first part of the flow channel. The second part is the gap between the closed end of the connector and the lower end face of the water outlet cavity. The distance of the gap in the axial direction of the jet pipe is the width of the second part of the flow channel.

5. An additive dispensing device according to any one of claims 1 to 4, characterized in that, The insertion end of the connector is closed, and the other end is connected to the spray pipe. There are intervals between the outer wall of the connector, the closed end and the inner wall of the water outlet chamber. The intervals form a flow channel. A water passage hole is opened on the side wall of the connector near the closed end. The water passage hole connects the internal channel of the connector with the flow channel.

6. The additive dispensing device according to claim 5, characterized in that, Multiple water passage holes are arranged at intervals on the side wall of the connector.

7. An additive dispensing device according to claim 6, characterized in that, The inner diameter of the spray pipe is larger than the inner diameter of the connector, the inner diameter of the connector is larger than the width of the water passage hole, and the width of the water passage hole is larger than the width of the flow channel.

8. The additive dispensing device according to claim 7, characterized in that, The nozzle diameter is smaller than the inner diameter of the connector but larger than the width of the flow channel.

9. An additive dispensing device according to any one of claims 1 to 4, characterized in that, The nozzle includes an end cap, with a spray outlet at the center of the end cap; the outer periphery of the end cap has an annular fold that bends toward the spray pipe and extends axially along the spray pipe, the extended end of the annular fold is sealed to the water outlet end of the spray pipe, and the inside of the annular fold forms a water outlet cavity.

10. An additive dispensing device according to claim 9, characterized in that, The end of the annular folded edge is fitted to the end face of the nozzle outlet, and the fitted area is sealed by a fusion process.

11. An additive dispensing device according to claim 9, characterized in that, The injection outlet is a circular hole with a radial dimension smaller than the inner diameter of the injection pipe.

12. An additive dispensing device according to claim 9, characterized in that, The outlet end of the jet pipe is equipped with a corresponding connector that is inserted into the water outlet cavity. The connector is coaxially arranged with the jet pipe. The outer radial dimension of the connector is larger than the pipe diameter at the outlet end of the jet pipe and smaller than the inner circumferential diameter of the annular fold. The inner radial dimension of the connector is smaller than the pipe diameter at the outlet end of the jet pipe.

13. An additive dispensing device according to claim 12, characterized in that, The connector and the spray pipe are integrated.

14. A washing machine equipped with an additive dispensing device according to any one of claims 1 to 13, comprising: The inner cylinder is characterized in that a nozzle structure is installed at the opening of the inner cylinder, and the spray outlet of the nozzle structure is opened towards the inside of the inner cylinder.

15. A washing machine according to claim 14, characterized in that, The inner drum is fitted into the outer drum. The outer drum and the inner drum are coaxially arranged and have openings on the same side. A window gasket that protrudes outward is connected to the opening of the outer drum. The nozzle structure is located on the window gasket. The spray pipe of the nozzle structure passes through the window gasket. The nozzle is located on the inner circumference of the window gasket. The axis of the spray pipe is oriented downward and is inclined to one side inside the inner drum of the washing machine.

16. A washing machine according to claim 15, characterized in that, The nozzle structure is located at the very top of the annular window pad; the axis of the injection pipe and the axis of the inner cylinder are in the same plane.

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