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WO2022042270A1 - 一种喷嘴结构、添加剂投放装置及洗衣机 - Google Patents

一种喷嘴结构、添加剂投放装置及洗衣机 Download PDF

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Publication number
WO2022042270A1
WO2022042270A1 PCT/CN2021/111396 CN2021111396W WO2022042270A1 WO 2022042270 A1 WO2022042270 A1 WO 2022042270A1 CN 2021111396 W CN2021111396 W CN 2021111396W WO 2022042270 A1 WO2022042270 A1 WO 2022042270A1
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WO
WIPO (PCT)
Prior art keywords
water
outlet
water supply
additive
nozzle structure
Prior art date
Application number
PCT/CN2021/111396
Other languages
English (en)
French (fr)
Inventor
黄涛
周炳衡
张华成
Original Assignee
重庆海尔滚筒洗衣机有限公司
海尔智家股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202010897286.3A external-priority patent/CN114108259A/zh
Priority claimed from CN202010919601.8A external-priority patent/CN114134683A/zh
Application filed by 重庆海尔滚筒洗衣机有限公司, 海尔智家股份有限公司 filed Critical 重庆海尔滚筒洗衣机有限公司
Priority to EP21860109.4A priority Critical patent/EP4190960A4/en
Priority to JP2023514009A priority patent/JP2023541130A/ja
Priority to US18/043,543 priority patent/US20230347359A1/en
Publication of WO2022042270A1 publication Critical patent/WO2022042270A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/06—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in annular, tubular or hollow conical form
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3426—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels emerging in the swirl chamber perpendicularly to the outlet axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3463—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels extending outwardly, e.g. radially from the inside to the outside
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/37—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of metering of detergents or additives
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/022—Devices for adding soap or other washing agents in a liquid state
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/42—Detergent or additive supply
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/266—Gaskets mounted between tub and casing around the loading opening
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the invention belongs to the technical field of clothing treatment equipment, and in particular relates to an additive dispensing device for a washing machine, in particular to a nozzle structure for dispensing an additive solution of a washing machine.
  • Existing washing machines are generally provided with an outer cylinder for containing washing water, a rotatable inner cylinder is arranged in the outer cylinder, and a dehydration hole connecting the inside and the outside is provided on the inner cylinder, so that the washing water flowing into the outer cylinder can use the dehydration hole inside.
  • the inside and outside of the tank are alternately flowed, so as to achieve the effect that the washing water is in contact with the load to be treated put into the inner cylinder, and the load is treated with the washing water.
  • the additive injection method of the above-mentioned existing washing machine is as follows: the additive injection device is used to inject the additive into the pipeline connected to the outer tub of the washing machine, and then the injected additive flows into the outer tub of the washing machine along the pipeline. Therefore, the additive put in the existing method is inside the outer tub and outside the inner tub of the washing machine, and cannot directly contact the load placed in the inner tub.
  • the added additive is mixed with the washing water flowing into the outer tub, and part of the washing water mixed with the additive flows into the inner tub through the dehydration hole and contacts the load to be treated in the tub, so that the washing water can be mixed with the washing water.
  • a small part of the additive in the water is in contact with the load and has an effect on the load. Therefore, the traditional way of adding additives has the problems of low efficiency in using the additives and waste of additives.
  • the existing additive injection device is generally provided with a casing that constitutes a water box, and the water box is connected to the water inlet pipe of the washing machine in series;
  • the additives to be put in the water box are flushed out, and the flushed additives to be put in flow into the outer tub of the washing machine and out of the inner tub together with the incoming water, so as to realize the purpose of adding the additives.
  • Additives need to flow through the water box for delivery, which increases the delivery path of additives, increases the residue of additives in the delivery path, and reduces the actual delivery amount;
  • the additive flows through the water box and is flushed into the outer cylinder. Since the cross section of the water box is larger than that of the waterway, the flow velocity of the water flowing through the water box will be slowed down, and it is easy to cause the water flow through the water to be unable to flush the additives in time, and the additives in the water Problems left in the box.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an additive injecting device, so as to realize the purpose of injecting the additive directly through the water supply waterway.
  • the invention provides an additive injection device, which comprises: a water supply channel; an injection unit for injecting the additive into the water supply channel; the outlet of the water supply channel is connected with a nozzle structure, and the nozzle structure sprays the additive supplied by the water supply channel.
  • the water supply channel is integrated on the shell of the throwing device, the outlet of the water supply channel is arranged outside the outer shell, the nozzle structure is arranged outside the outer shell, and the outlet of the water supply channel is communicated with the nozzle structure through a conduit.
  • the top of the casing of the throwing device is an upper cover
  • the water supply waterway is arranged inside the upper cover, and the outlet of the water supply waterway is exposed on the outer peripheral side of the upper cover
  • a conduit is independently provided outside the casing, and the inlet end of the conduit is connected with the outlet of the water supply waterway.
  • the outlet end of the conduit is communicated with the nozzle structure arranged outside the casing;
  • the upper cover includes a first part and a second part that are mutually fastened up and down, and the first part and the second part are spliced relative to each other to form a water supply channel at the joint surface.
  • the injection unit includes a liquid storage cavity for storing the additive, and the liquid storage cavity is communicated with the water supply channel; the injection device is also provided with a power unit to provide power for the additive in the liquid storage cavity to be pumped into the water supply channel.
  • the power unit is a pump arranged on the flow channel connecting the liquid storage cavity and the water supply water channel, and provides a driving force for the liquid in the flow channel to flow from the liquid storage cavity to the direction of the water supply water channel;
  • the power unit is a suction pump, and the suction port of the suction pump is communicated with the water supply waterway, so that a negative pressure is formed in the water supply waterway, and the additive in the liquid storage cavity is pumped to the water supply waterway through the flow channel;
  • the power unit is a Venturi tube arranged on the water supply waterway, the Venturi tube has a negative pressure area for forming a negative pressure by flowing through the water flow, and a suction port is provided at the negative pressure area of the Venturi tube, and the suction port is provided. It communicates with the liquid storage chamber through the flow channel.
  • the additive injection device includes a plurality of liquid storage chambers, and a control device is arranged on the injection device to control each liquid storage chamber to communicate with the water supply water channel by one or a combination;
  • each liquid storage cavity is communicated with the water supply water channel through a flow channel provided with a control valve;
  • each liquid storage cavity is in a one-to-one correspondence with different inlets of the same reversing valve
  • the outlet of the reversing valve is communicated with the water supply waterway
  • a rotatable valve core is arranged in the reversing valve, which is used to control any one Or combined inlet and outlet are connected.
  • liquid storage box is arranged in the shell of the injection device, and at least one liquid storage cavity for additive storage is arranged in the liquid storage box.
  • the water supply waterway is provided with a liquid suction port which is communicated with the feeding unit for the inflow of the additive, and the liquid suction port is arranged close to the inlet of the water supply waterway.
  • Another object of the present invention is to provide a washing machine equipped with the above-mentioned additive dispensing device, so as to realize the purpose of directly injecting the additive into the inner cylinder, so as to achieve that the injected detergent directly contacts the load to be treated in the inner cylinder, Improve the utilization of detergents.
  • the invention also discloses a washing machine, which comprises an inner cylinder for holding loads to be treated, any one of the above-mentioned additive feeding device, the inlet of the water supply water channel of the additive feeding device is communicated with the water inlet pipe of the washing machine, and the additive feeding device is in communication with the water inlet pipe of the washing machine.
  • the nozzle structure of the device sprays toward the inner tub of the washing machine.
  • the nozzle structure is arranged on the shell of the washing machine, and/or the door body, and/or the outer cylinder, and/or the window pad, the injection outlet of the nozzle structure is opened toward the interior of the inner cylinder, and the additive solution sprayed by the nozzle structure is directly sprayed into the inner cylinder. inside the barrel.
  • the nozzle structure connected to the outlet of the water supply channel of the additive injection device adopts the following nozzle structure.
  • the spray outlet of the nozzle structure is opened toward the inside of the inner cylinder.
  • the inner cylinder is sleeved in the outer cylinder, the outer cylinder and the inner cylinder are coaxially arranged, and a cylinder opening is opened on the same side, and the cylinder opening of the outer cylinder is connected with a window pad that protrudes and extends to the outside of the cylinder; the nozzle structure is arranged on the window pad, and the nozzle The jet pipe of the structure passes through the window pad, the jet head is located on the inner peripheral side of the window pad, and the axis of the jet pipe is inclined downward and is arranged on the inner side of the inner tub of the washing machine.
  • the nozzle structure is arranged at the top of the annular window gasket; 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 to 60 degrees.
  • the present invention enables the additive to be dispensed directly through the water channel set on the dispensing device, which avoids the additive flowing through the water box, not only reduces the flow path of the additive, but also reduces the amount of flushing water required for additive dispensing, greatly improving the utilization of additives.
  • the additive solution flowing out of the water channel is directly sprayed through the nozzle structure, which can increase the coverage area of the sprayed additive solution, so that the additive solution can be directly sprayed onto the load to be treated deep in the inner cylinder.
  • the present invention has the following beneficial effects compared with the prior art:
  • the above-mentioned device enables the additive to be directly dispensed through the water channel provided on the dispensing device, which prevents the additive from flowing through the water box, not only reduces the flow path of the additive, but also reduces the amount of flushing water required for the additive to be dispensed.
  • the utilization rate of additives is greatly improved.
  • the additive solution flowing out of the water channel is directly sprayed through the nozzle structure, which can increase the coverage area of the sprayed additive solution, so that the additive solution can be directly sprayed onto the load to be treated deep in the inner cylinder.
  • the additive of the washing machine directly flows to the nozzle structure through the water supply water channel, and is directly sprayed into the inner cylinder from the nozzle structure, thereby realizing that the additive of the washing machine does not pass through the water box and the inner cylinder.
  • the outer cylinder outside the cylinder directly flows into the inner cylinder through the water channel of the injection device, and is sprayed to the load to be treated, thereby realizing the purpose of directly spraying the additive solution to the load to be treated in the inner cylinder.
  • the washing machine equipped with the above-mentioned additive feeding device can realize that the additive solution formed by mixing the additive with a small amount of water in the water supply channel is directly sprayed onto the load to be treated in the inner cylinder, thereby making all The utilization rate of the additives put in has been significantly improved.
  • the present invention provides a nozzle structure to achieve the purpose of increasing the spray coverage area.
  • the invention provides a nozzle structure, which comprises: a spray pipe, the outlet end of the spray pipe is provided with a spray head, the spray head is provided with a spray outlet, and the spray head is provided with a nozzle to divert the water in the spray pipe to the spray outlet, and to increase the water flow at the spray outlet Tangential acceleration of the runner.
  • a water outlet cavity is arranged inside the spray head, and the water outlet end of the spray pipe is provided with a joint that protrudes outward and is correspondingly inserted into the water outlet cavity. There is a gap between the outer wall of the joint and the inner wall of the water outlet cavity. It is connected with the injection pipe through the joint, and also directly communicated with the injection outlet.
  • the insertion end of the joint is closed, and the other end is communicated with the jet pipe, the outer side wall of the joint, the closed end and the inner wall of the water outlet cavity are all spaced apart, and the interval constitutes a flow channel, and the side wall of the joint close to the closed end is provided with a passage. a water hole, which connects the internal channel of the joint with the flow channel;
  • a plurality of water passage holes are arranged at intervals on the side wall of the joint.
  • the inner diameter of the jet pipe is larger than the inner diameter of the joint, the inner diameter of the joint is larger than the width of the water passage, and the width of the water passage is larger than the width of the flow channel;
  • the aperture of the jet outlet is smaller than the inner diameter of the joint and larger than the width of the flow channel.
  • the spray head includes an end cover, and the center of the end cover is provided with a spray outlet; the outer circumference of the end cover is provided with a ring of annular folded edges that are bent to the side of the spray pipe and extend along the axial direction of the spray pipe, and the extended end of the annular folded edge is provided It is sealed and connected with the water outlet end of the jet pipe, and the inside of the annular fold forms a water outlet cavity;
  • the end of the folded edge is correspondingly attached to the end face of the outlet end of the injection pipe, and the attached part is sealed and connected by a welding process;
  • the injection outlet is a circular hole whose radial dimension is smaller than the inner diameter of the injection pipe.
  • the outlet end of the jet pipe is provided with a corresponding joint inserted into the water outlet cavity, and the joint is arranged coaxially with the jet pipe;
  • the radial dimension of the outer circumference of the joint is larger than the pipe diameter of the outlet end of the jet pipe and smaller than the inner circumference diameter of the annular fold, and the diameter of the joint is
  • the radial dimension of the inner circumference is smaller than the pipe diameter of the outlet end of the jet pipe, so that at least part of the end face of the joint and the end face of the outlet end of the jet pipe are coincident in the axial direction of the jet pipe, and the overlapped places are correspondingly fitted and sealed, so that the water in the jet pipe can only be The effect of flowing into the water outlet cavity through the joint, pressurized by the flow channel set in the water outlet cavity, and then ejected through the jet outlet;
  • the joint is provided integrally with the injection pipe.
  • the nozzle structure of the present invention has the following beneficial effects:
  • the tangential velocity of the water flow in the nozzle structure to the jet outlet can be increased, so that the effluent water flow at the jet outlet diverges to the surrounding, so as to realize the effect of the conical divergent jet of the water flow from the jet outlet of the nozzle structure, thereby achieving Significant technological advancement in increasing the water coverage area of the nozzle structure.
  • the above-mentioned nozzle structure can increase the spray area of the sprayed additive solution, so that the additive solution injected into the inner cylinder by the additive injection device through the nozzle structure can fully contact the load in the cylinder, thereby improving washing machine washing.
  • Significant technological advancement in effect can be increased, so that the additive solution injected into the inner cylinder by the additive injection device through the nozzle structure can fully contact the load in the cylinder, thereby improving washing machine washing.
  • the invention has simple structure and remarkable effect, and is suitable for popularization and use.
  • 1 to 3 are schematic structural diagrams of a washing machine from different perspectives in an embodiment of the present invention.
  • Fig. 4 is the A-A sectional structure schematic diagram of Fig. 3 in the embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of the washing machine after the first part of the upper cover is removed in the embodiment of the present invention
  • FIG. 6 is a schematic top-view structural diagram of the washing machine after the first part of the upper cover is removed in the embodiment of the present invention
  • FIG. 7 and 8 are schematic structural diagrams of the washing machine after the additive delivery device explodes in the embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a nozzle structure in an embodiment of the present invention.
  • Figure 10 is a schematic diagram of the cross-sectional structure of Figure 9 in the embodiment of the present invention.
  • FIG. 11 and FIG. 12 are schematic diagrams of the explosion structure of the nozzle structure from different viewing angles in the embodiment of the present invention.
  • a washing machine is also introduced in the embodiment of the present invention, which includes: an outer tub 200 for holding water, and a rotatable container for storing loads to be processed is installed in the outer tub 200
  • the inner cylinder 300 is an additive injecting device 100 for directly injecting additives into the inner cylinder 300 .
  • the additive injection device 100 described in the embodiment of the present invention includes: a water supply channel 1 for the influent water entering the additive injection device 100 to flow through; an injection unit for supplying the water supply channel 1 Add additives; nozzle structure 500, the outlet 11 of the water supply channel 1 is connected to the nozzle structure 500, and the nozzle structure 500 is disposed toward the inner tub 300 of the washing machine.
  • a small amount of incoming water flows into the water supply water channel, so that the additive solution is formed by mixing the additive with a small amount of incoming water in the water supply water channel 1.
  • the additive solution supplied by the water supply water channel 1 can be directly sprayed to the inner cylinder through the nozzle structure 500. On the load to be processed within 300, the utilization rate of the additives put in is significantly improved.
  • the additive is directly injected through the water channel provided on the injection device 100 to avoid the additive flowing through the water box, which not only reduces the flow path of the additive, but also reduces the amount of flushing water required for the additive injection, which greatly improves the Additive utilization.
  • a nozzle structure is introduced in this embodiment, which includes: a spray pipe 51 , an outlet end of the spray pipe 51 is provided with a spray head 52 , a spray outlet 53 is opened on the spray head 52 , and the inside of the spray head 52 is A flow channel 56 is provided for diverting the water in the jet pipe 51 to the jet outlet 53 and increasing the tangential acceleration of the water flow to the jet outlet 53 .
  • the tangential velocity of the water flow in the nozzle structure to the jet outlet can be increased, so that the effluent water flow at the jet outlet can diverge to the surrounding, so as to realize the effect of conical divergent jetting of the water flow from the jet outlet of the nozzle structure, and then Remarkable technological progress to increase the water coverage area of the nozzle structure.
  • the above-mentioned nozzle structure can increase the spray area of the sprayed additive solution, so that the additive solution injected into the inner cylinder by the additive injection device through the nozzle structure can fully contact the load in the cylinder, thereby improving the washing machine washing.
  • the spray head 52 is correspondingly fastened to the outlet end of the spray pipe 51 , and the joint of the spray head 52 and the spray pipe 51 is sealed by a welding process, so that the spray head 52 is sealed by a welding process.
  • 52 and the spray pipe 51 are connected together by the welding process, and can improve the overall strength of the nozzle structure.
  • the nozzle 52 is provided with a water outlet cavity 54, and the water outlet end of the jet pipe 51 is provided with a joint 55 that protrudes outward and is correspondingly inserted into the water outlet cavity.
  • a gap between the outer wall of the joint 55 and the inner wall of the water outlet cavity 54.
  • the gap constitutes a flow channel 56 , and the flow channel 56 is connected with the injection pipe 51 via the joint 55 and also directly communicated with the injection outlet 53 .
  • the insertion end of the joint 55 is closed, and the other end is communicated with the injection pipe 51.
  • the outer side wall of the joint 55, the closed end and the inner wall of the water outlet cavity 54 are all spaced apart, and the space constitutes a flow channel 56, and the joint 55
  • a water passage hole 59 is opened on the side wall near the closed end, and the water passage hole 59 communicates the inner channel of the joint 55 with the flow channel 56 .
  • the effluent water of the nozzle structure flows through the side wall of the joint and flows into the water channel, so that the effluent water can flow to the jet outlet through the flow channel part perpendicular to the axis of the jet outlet, avoiding the direct outflow of the outlet water along the axis of the jet pipe, and realizing the lifting of the jet outlet.
  • a plurality of water passage holes 59 are arranged at intervals on the side wall of the joint 55, and the spacing between adjacent water passage holes 59 is set to be equal. So that the water in the joint 55 can flow into the flow channel 56 from the water passage holes 59 in different directions, so as to realize the effect of flowing from a plurality of different radial directions to the jet outlet 53 and increasing the radial acceleration of the water flow in different directions at the jet outlet 53, thereby achieving Significant technological progress is made to improve the divergence of the water flow from the jet outlet 53 and increase the coverage area of the jetted water.
  • the inner diameter of the jet pipe 51 is larger than the inner diameter of the joint 55
  • the inner diameter of the joint 55 is larger than the width of the water passage hole 59
  • the width of the water passage hole 59 is larger than the width of the flow channel 56 .
  • the width of the flow channel 56 is the cross-sectional width of the water supply flow; the flow channel 56 is divided into two parts, the first part is the gap between the outer peripheral wall of the joint 55 and the inner peripheral wall of the water outlet cavity 54, and the above-mentioned gap is in the spraying
  • the distance in the radial direction of the 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 joint 55 and the lower end surface of the water outlet cavity 54, and the distance of the above gap in the axial direction of the injection pipe 51 is the flow channel 56
  • the width of the second part is the width of the second part.
  • the aperture of the jet outlet 53 is smaller than the inner diameter of the joint 55 and larger than the width of the flow channel 56 to ensure that the water flow from the flow channel 56 to the jet outlet 53 can be sprayed radially from the jet outlet 53 to the surrounding radial direction, reaching the jet outlet 53 The effect of spraying a cone-shaped diverging stream of water outward.
  • the spray head 52 includes an end cover 57, and the center of the end cover 57 is provided with a spray outlet 53;
  • the annular folded edge 58, the extending end of the annular folded edge 58 is sealedly connected with the water outlet end of the jet pipe 51, and the inside of the annular folded edge 58 constitutes a water outlet cavity 54.
  • the end of the annular folded edge 58 is correspondingly attached to the end face of the outlet end of the injection pipe 51 , and the attached part is sealed and connected by a welding process.
  • the injection outlet 53 is a circular hole whose radial dimension is smaller than the inner diameter of the injection pipe 51 , and the injection outlet 53 and the joint 55 are coaxially arranged with the injection pipe 51 .
  • the outlet end of the injection pipe 51 is provided with a joint 55 correspondingly inserted into the water outlet cavity 54, and the joint 55 is coaxially arranged with the injection pipe 51;
  • the diameter of the inner circumference of the annular flange 58 and the radial dimension of the inner circumference of the joint 55 are smaller than the diameter of the outlet end of the injection pipe 51, so that at least part of the end face of the joint 55 and the end face of the outlet end of the injection pipe 51 coincide in the axial direction of the injection pipe 51
  • the overlapped places are correspondingly attached and sealed to achieve the effect that the water in the jet pipe 51 can only flow into the water outlet cavity 54 through the joint, pressurized through the flow channel 56 set in the water outlet cavity 54, and then sprayed out through the jet outlet 53.
  • the joint 55 and the injection pipe 51 are integrally provided.
  • this embodiment introduces an additive injecting device for a washing machine, which includes: a water supply channel 1 ; an injecting unit for injecting additives into the water supply channel 1 ; the outlet of the water supply channel 1 is connected to any of the above
  • the nozzle structure 500 is connected, and the nozzle structure 500 sprays the additive solution supplied by the water supply channel into the inner tub 300 of the washing machine.
  • the water supply channel 1 is integrated on the casing 2 of the additive injection device 100 , the outlet 11 of the water supply channel 1 is arranged outside the casing 2 , the nozzle structure is arranged outside the casing 2 , and the outlet 11 of the water supply channel 1 is connected to the outer casing 2 through the conduit 600 .
  • the nozzle structure is connected.
  • the top of the casing 2 of the additive injection device 100 is the upper cover 3
  • the water supply channel 1 is provided inside the upper cover 3
  • the outlet 11 of the water supply channel 1 is exposed on the surface of the upper cover 3 .
  • the inlet end of the conduit 600 is communicated with the outlet 11 of the water supply channel 1, and the outlet end of the conduit 600 is communicated with the nozzle structure 500 provided outside the housing 2; 31 and the second part 32, the first part 31 and the second part 32 are spliced relative to each other, and the water supply channel 1 is formed at the interface.
  • the first part 31 and the second part 32 of the upper cover 3 are connected by a welding process, so as to form a closed and pressure-bearing waterway structure inside.
  • the water supply channel 1 of the additive injection device 100 is integrated on the upper cover 3 , so that the inlet water and the additives of the injection device 100 are directly injected through the water supply channel 1 inside the upper cover 3 , so that the additive can be directly injected from the outer periphery of the upper cover 3 .
  • the outlet 11 on the side flows out to the outside and performs the effect of throwing.
  • the feeding unit includes a liquid storage chamber 4 for storing additives, and the liquid storage chamber 4 is communicated with the water supply channel 1; the feeding device 100 is also provided with a power unit, which pumps the additives in the liquid storage chamber 4 into the water supply Waterway provides power.
  • the power unit is a pump 6 arranged on the liquid pumping channel 8 connected with the liquid storage chamber 4 and the water supply channel 1 to provide self-storage for the liquid in the pumping channel 8 The driving force for the liquid chamber 4 to flow in the direction of the water supply channel 1 .
  • the pumping channel 8 is also integrally arranged inside the upper cover 3 , the inlet 81 of the pumping channel 8 is communicated with the liquid storage chamber 4 through the connector 7 , and the outlet 82 of the pumping channel 8 is connected to the pump The inlet of the pump 6 is communicated with, and the outlet of the pump 6 is communicated with the liquid suction port 13 provided on the water supply channel 1 .
  • the power unit can also be provided with other existing structures.
  • the power unit is a suction pump, and the suction port of the suction pump is communicated with the water supply channel 1, so that the water supply channel 1 Negative pressure is formed inside, and the additive in the liquid storage chamber 4 is pumped to the water supply channel 1 through the liquid pumping channel 8;
  • the power unit can also be a Venturi tube arranged on the water supply waterway 1, and the Venturi tube is provided with a negative pressure area with a sudden change in pipe diameter, and the negative pressure area can utilize the flow through the water to form a negative pressure here.
  • the negative pressure area of the venturi tube is provided with a suction port, and the suction port is communicated with the liquid storage cavity 4 through the liquid suction channel 8 (not indicated in the accompanying drawings).
  • the additive delivery device 100 includes a plurality of liquid storage chambers 4, and each liquid storage chamber 4 can respectively hold different types of additives, such as detergents, softeners, fragrances, disinfectants, etc.; the delivery device 100 is provided with a control device, and the control device is used to control each liquid storage chamber 4 to be connected to the water supply channel 1 by one or a combination thereof, so as to put any one or a variety of combined types of additives into the water supply channel 1 correspondingly at the same time. .
  • control device may be set to any existing structure that can realize the above functions; for example:
  • each liquid storage chamber 4 can be communicated with the water supply channel 1 through a flow channel provided with a control valve, so as to control the opening and closing of each control valve to realize the separate or combined communication of each flow channel.
  • each liquid storage chamber 4 with the different inlets of the same reversing valve in a one-to-one correspondence. Any or combination of the inlet and the outlet is connected, and the purpose of adding any type of additive independently, or adding multiple types of additives at the same time can also be achieved (not indicated in the drawings).
  • a liquid storage box 5 is provided in the casing 2 of the dispensing device 100 , and the liquid storage box 5 can be pulled out and installed in the casing 2 of the additive dispensing device 100 .
  • the liquid storage box 5 is provided with at least one liquid storage cavity 4 for additive storage, and each liquid storage cavity 4 on the liquid storage box 5 is connected with the water supply waterway 1 through the communication device 7, and the communication device 7 is provided with a control The device is used to control each liquid storage chamber 4 to be connected with the water supply water circuit 1 in a controllable on-off state or a combination thereof.
  • the inlet 12 of the water supply channel 1 is provided on the outer wall of the housing 2 , and the inlet 12 of the water supply channel 1 is connected with the water inlet pipe of the washing machine, so that the washing water can flow into the water supply channel 1 through the inlet 12 .
  • the shell 2 of the additive feeding device 100 is provided with a water inlet joint, and the two ends of the water inlet joint are respectively connected with the inlet 12 of the water supply water channel 1 and the water inlet pipe of the washing machine; further preferably, the water inlet joint is installed with a control water channel on-off. Control valve.
  • a liquid suction port 13 is provided in the middle of the water supply channel 1 , and the liquid suction port 13 is communicated with the injection unit, so that the additive is drawn into the water supply channel 1 from the liquid suction port 13 . .
  • the suction port 13 is communicated with the outlet of the pump 6, the inlet of the pump 6 is communicated with the outlet 82 of the pumping channel 8, the inlet 81 of the pumping channel 8 is communicated with the outlet of the connector 7, and the connector
  • the multiple inlets of 7 are in one-to-one correspondence with each liquid storage chamber 4, so that the additive in the liquid storage chamber 4 can be pumped into the water supply channel 1 through the above-mentioned flow channel and driven by the pump 6.
  • the part of the water supply channel 1 downstream of the liquid suction port 13 can mix the additive flowing into the water supply channel 1 with the incoming water to form an additive solution.
  • the liquid suction port 13 is arranged close to the inlet 12 of the water supply water path 1 to extend the length of the water supply water path 1 downstream of the liquid suction port 13 as much as possible, so that the space in the downstream part of the water supply water path 1 where the co-additives and the water are mixed increases, thereby increasing the additives. Mixing uniformity with incoming water.
  • this embodiment also introduces a washing machine equipped with the additive dispensing device 100 described in the second embodiment above, which includes: an outer tub 200 , and the outer tub 200 is sleeved with the same outer tub as the outer tub.
  • the inner cylinder 300 with a cylinder opening is provided on the side, the cylinder opening of the outer cylinder 200 is connected with a window pad 400 that protrudes and extends to the outside of the cylinder.
  • the additive solution is sprayed on the peripheral side toward the barrel opening of the inner barrel 300 .
  • a window gasket 400 is installed at the opening of the outer cylinder 200.
  • the window gasket 400 is in the shape of a cylinder.
  • One end of the cylindrical window gasket 400 is connected to the opening of the outer cylinder 200, and the other end is connected to the shell of the washing machine.
  • the opening of the inner cylinder 300 is relatively connected to one end of the above-mentioned channel, the washing machine shell is provided with a clothing drop corresponding to the other end of the above-mentioned channel, and the washing machine shell is equipped with a corresponding opening and closing of the clothes drop port.
  • the door body after the door body is closed, a closed space is formed inside the outer cylinder 200; there is a clearance space between the door body and the window pad 400, and the clearance space is directly connected with the interior of the inner cylinder 300 through the cylinder mouth of the inner cylinder 300; the nozzle structure 500 Installed on the top of the window pad 400, the nozzle structure 500 passes through the window pad 400, the part of the nozzle structure 500 on the inner peripheral side of the window pad 400 has a jet outlet, the part on the outer peripheral side of the window pad 400 has an inlet, and the nozzle structure 500 has a flow inside.
  • the two ends of the flow channel are respectively connected with the inlet and the injection outlet, and the injection outlet is arranged towards the cylinder mouth of the inner cylinder 300, so that the additive solution sprayed from the nozzle structure 500 can be directly sprayed into the inner cylinder 300, so as to realize the direct injection of the additive Significant technological progress to improve the efficiency of adding additives to the load to be treated in the inner cylinder 300.
  • the nozzle structure 500 can be any existing spray structure, and the spray outlet can be set as a plurality of spray holes arranged at intervals, or can be set as a single opening; preferably Yes, the nozzle structure 50 adopts the nozzle structure 500 described in the first embodiment.
  • the window pad 400 is an annular structure extending along the circumference of the outer cylinder 200; the nozzle structure 500 is arranged on the top of the annular window pad 400, so that the additive solution sprayed by the nozzle structure 500 can be sprayed as much as possible distance, thereby increasing the coverage area of the additive solution.
  • the spray pipe 51 of the nozzle structure 500 passes through the window pad 400, the spray head 52 is located on the inner peripheral side of the window pad ring 400, and the axis of the spray pipe 51 faces downward and is inclined to the inner side of the inner tub 300 of the washing machine.
  • the extension line of the axis of the injection pipe 51 intersects the inner cylinder bottom of the inner cylinder 300 or the lower end of the inner cylinder side wall near the inner cylinder bottom, so as to maximize the injection coverage area of the nozzle structure.
  • the axis of the injection pipe 51 and the axis of the inner tub 300 of the washing machine are in the same plane, so that the nozzle structure 500 is located at the center of the inner tub 300 in the horizontal direction, thereby ensuring that the nozzle structure 500 can align the left and right sides of the inner tub 300.
  • the additive solution is sprayed uniformly on the side, and the contact between the load and the additive solution is improved.
  • the included angle between the axis of the spray pipe 51 and the axis of the inner tub 300 of the washing machine is 20 degrees to 60 degrees, so as to maximize the coverage area of the additive solution sprayed by the nozzle structure.
  • the washing machine is provided with an independent conduit 600 located outside the casing of the additive dispensing device 100 and outside the outer cylinder 200.
  • the two ends of the conduit 600 are respectively opposite to the inlet of the nozzle structure 500 and the outlet 11 of the water supply channel 1. Plug and connect, so that the additive solution supplied by the water supply channel 1 can be directly drained to the nozzle structure 500 through the conduit 600 to achieve the effect of directly spraying into the inner tub 300 of the washing machine.
  • the above-mentioned conduit 600 is made of materials such as rubber, which can be bent and deformed.
  • the above-mentioned additive feeding device 100 is provided on the washing machine, so that the additive of the washing machine flows directly to the nozzle structure 500 through the water supply water channel 1, and is directly sprayed into the inner cylinder 300 from the nozzle structure 500, thereby realizing that the additive of the washing machine does not pass through the water box or through the nozzle structure 500.
  • the outer cylinder 200 outside the inner cylinder 300 directly flows into the inner cylinder 300 through the waterway of the injection device 100 and is sprayed to the load to be treated, thereby realizing the purpose of directly spraying the additive solution to the load to be treated in the inner cylinder 300 .
  • the washing machine equipped with the above-mentioned additive feeding device 100 can realize that the additive solution formed by mixing the additive with a small amount of inlet water in the water supply water circuit 1 is directly sprayed onto the load to be treated in the inner cylinder 300, so that all The utilization rate of the additives put in has been significantly improved.
  • the nozzle structure 500 may also be provided on the shell, and/or the door body, and/or the outer tub 200, and/or the window pad 400 of the washing machine, and the spray outlet of the nozzle structure 500 faces the inner tub 300 The inside is opened, and the additive sprayed by the nozzle structure 500 is directly sprayed into the inner cylinder 300 .

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Abstract

本发明提供了一种添加剂投放装置，包括：供水水路；投放单元，用于向供水水路投放添加剂；供水水路的出口与喷嘴结构相连。本发明还公开了一种洗衣机，其包括，用于待处理负载盛放的内筒，上述的添加剂投放装置；添加剂投放装置的供水水路的进口与洗衣机进水管相连通，添加剂投放装置的喷嘴结构朝向洗衣机的内筒内喷射添加剂溶液。本发明通过上述设置，使得洗衣机的添加剂直接经供水水路流向喷嘴结构、由喷嘴结构直接喷入内筒内，令洗衣机的添加剂不经水盒、不经内筒外部的外筒，进而实现了向内筒内待处理负载直接喷射添加剂溶液、提升添加剂利用率的显著技术进步。

Description

一种喷嘴结构、添加剂投放装置及洗衣机 技术领域
本发明属于衣物处理设备的技术领域，具体涉及一种洗衣机的添加剂投放装置，尤其涉及一种洗衣机添加剂溶液投放用的喷嘴结构。
背景技术
现有的洗衣机一般设有供洗涤水盛放的外筒，外筒内设置可旋转的内筒，内筒上开设连通内外的脱水孔，使得流入外筒内的洗涤水可利用脱水孔在内筒内外进行交互流动，以实现洗涤水与内筒内投放的待处理负载相接触、利用洗涤水对负载进行处理的效果。
上述现有洗衣机的添加剂投放方式如下：通过添加剂投放装置，将添加剂投放到与洗衣机外筒相连通的管路中，然后投放的添加剂沿管路流入洗衣机外筒中。因此，现有方式所投放的添加剂是处于洗衣机的外筒内、内筒外，而无法直接与内筒内投放的负载相接触。
然后，在洗衣机执行洗涤程序时，投放的添加剂与流入外筒内的洗涤水相混合，部分混合有添加剂的洗涤水经脱水孔流入内筒中、与筒内待处理负载相接触，才能使得混入洗涤水中的一小部分添加剂与负载相接触、对负载产生作用。因此，传统的添加剂投放方式存在投放的添加剂使用效率低、添加剂浪费的问题。
同时，传统的添加剂投放方式中，为了保证投放至外筒与内筒之间的添加剂与内筒内待处理负载相接触，需要向外筒内流入大量的水，直至外筒内洗涤水的水位高于内筒后，才能保证洗涤水经脱水孔流入内筒内、添加剂与内筒内负载相接触的目的。因此，传统的添加剂投放方式还存在，添加剂投放用水过多的问题。
还有，现有的添加剂投放装置，普遍是设置一构成水盒的外壳，水盒串接于洗衣机进水管上；待投放的添加剂经水路流入水盒后，洗衣机进水流经水盒时，将水盒内的待投放添加剂冲出，冲出的待投放添加剂随进水一并流至洗衣机外筒内、内筒外，以实现对添加剂进行投放的目的。
但是，上述结构的添加剂投放装置存在问题：
1、添加剂需流经水盒进行投放，使得添加剂的投放路径增长，使得添加剂在投放路径中的残留增多、实际投放量减少；
2、添加剂经水盒中流经进水冲至外筒中，由于水盒相较水路的截面较大，流经水盒的水流流速会变缓，容易产生流经水流无法及时冲洗添加剂、添加剂在水盒内残留的问题。
有鉴于此，特提出本发明。
发明内容
本发明要解决的技术问题在于克服现有技术的不足，提供一种添加剂投放装置，以实现添加剂直接经供水水路向外投放的目的。
为实现上述发明目的，本发明采用技术方案的基本构思是：
本发明提供了一种添加剂投放装置，其包括：供水水路；投放单元，用于向供水水路投放添加剂；供水水路的出口与喷嘴结构相连，喷嘴结构将供水水路供给的添加剂喷出。
进一步，供水水路集成于投放装置的外壳上，供水水路的出口设于外壳的外侧，喷嘴结构设于外壳外部，供水水路的出口经导管与喷嘴结构相连通。
进一步，投放装置的外壳的顶部为上盖，供水水路设于上盖内部，供水水路的出口裸露于上盖的外周侧；外壳外部独立的设有一导管，导管的进口端与供水水路的出口相连通、导管的出口端与设于外壳外部的喷嘴结构相连通；
优选的，上盖包括上下相互扣合的第一部分和第二部分，第一部分和第二部分相对拼接、在相接面处形成供水水路。
进一步，投放单元包括供添加剂存储的储液腔，储液腔与供水水路相连通；投放装置上还设有动力单元，对储液腔内的添加剂抽入供水水路提供动力。
进一步，动力单元为设于储液腔与供水水路相连流道上的泵，为流道内液体提供自储液腔向供水水路方向流动的驱动力；
和/或，动力单元为抽吸泵，抽吸泵的抽吸口与供水水路相连通，使供水水路内形成负压、将储液腔内的添加剂经流道抽至供水水路；
和/或，动力单元为设于供水水路上的文丘里管，文丘里管具有利用流经水流形成负压的负压区域，文丘里管的负压区域处设有抽吸口，抽吸口经流道与储液腔相连通。
进一步，添加剂投放装置包括多个储液腔，投放装置上设有控制装置，控制各储液腔择一、或组合的与供水水路相连通；
优选的，各储液腔分别经设有控制阀的流道与供水水路相连通；
优选的，各储液腔与同一换向阀的不同进口相一一对应的连通，换向阀的出口与供水水路相连通，换向阀内设有可旋转的阀芯，用于控制任一或组合的进口与出口相连通。
进一步，投放装置的外壳内设有储液盒，储液盒内设有供添加剂存储的至少一个储液腔，储液盒上的各储液腔与供水水路分别相连通。
进一步，供水水路上设有与投放单元相连通的、供添加剂流入的吸液口，吸液口靠近供水水路的进口设置，供水水路的吸液口下游部分供抽取的添加剂与进水相混合。
本发明的再一目的在于提供了一种安装有上述添加剂投放装置的洗衣机，以实现向内筒内直接投放添加剂的目的，进而达到所投放的洗涤剂直接与内筒内待处理负载相接触、提升洗涤剂的利用率。
为实现上述发明目的，本发明采用技术方案的基本构思是：
本发明还公开了一种洗衣机，其包括，用于待处理负载盛放的内筒，上述任一所述的添加剂投放装置，添加剂投放装置的供水水路的进口与洗衣机进水管相连通，添加剂投放装置的喷嘴结构朝向洗衣机的内筒内喷射。
进一步，喷嘴结构设于洗衣机的壳体、和/或门体、和/或外筒、和/或窗垫上，喷嘴结构的喷射出口朝向内筒内部开设，喷嘴结构喷出的添加剂溶液直接喷入内筒内。
进一步，添加剂投放装置的供水水路的出口相连的喷嘴结构采用下述的喷嘴结构。
进一步，喷嘴结构的喷射出口朝向内筒内部开设。本发明通过上述设置，使得装有上述添加剂投放装置的洗衣机，可以实现添加剂在供水水路内与少量进水相混合形成的添加剂溶液直接喷至内筒内待处理负载上，进而使得所投放的添加剂利用率得到显著提升。
进一步，内筒套装于外筒中，外筒与内筒同轴设置、并在同侧开设筒口，外筒的筒口处连接有向筒外凸出延伸的窗垫；喷嘴结构设于窗垫上，喷嘴结构的喷射管穿过窗垫，喷头处于窗垫内周侧，喷射管的轴线朝向下方、洗衣机内筒内部一侧倾斜设置。
进一步，喷嘴结构设于环形窗垫的最顶部；喷射管的轴线与内筒的轴线处于同一平面中，喷射管轴线与内筒轴线之间的夹角为20度至60度。
本发明通过上述装置，使得添加剂直接经投放装置上设置的水路向外投放，避免了添加剂流经水盒，不仅缩减了添加剂的流经路径，还减少了添加剂投放所需的冲洗水量，大大提升了添加剂利用率。同时，由水路流出的添加剂溶液直接经喷嘴结构喷出，可使得喷出的添加剂溶液的覆盖面积增大，使得添加剂溶液可直接喷射至内筒深处的待处理负载上。
采用上述技术方案后，本发明与现有技术相比具有以下有益效果：
1、本发明通过上述装置，使得添加剂直接经投放装置上设置的水路向外投放，避免了添加剂流经水盒，不仅缩减了添加剂的流经路径，还减少了添加剂投放所需的冲洗水量，大大提升了添加剂利用率。同时，由水路流出的添加剂溶液直接经喷嘴结构喷出，可使得喷出的添加剂溶液的覆盖面积增大，使得添加剂溶液可直接喷射至内筒深处的待处理负载上。
2、同时，本发明通过在洗衣机上设置上述添加剂投放装置，使得洗衣机的添加剂直接经供水水路流向喷嘴结构、由喷嘴结构直接喷入内筒内，进而实现洗衣机的添加剂不经水盒、不经内筒外部的外筒，而是直接由投放装置的水路流入内筒内、喷射至待处理负载，进而实现了向内筒内待处理负载直接喷射添加剂溶液的目的。
3、还有，通过上述设置，使得装有上述添加剂投放装置的洗衣机，可以实现添加剂在供水水路内与少量进水相混合形成的添加剂溶液直接喷至内筒内待处理负载上，进而使得所投放的添加剂利用率得到显著提升。
同时，本发明为了提升洗涤剂的利用率，最好是将添加剂直接投放至洗衣机内桶中，使添加剂直接与内桶中的洗涤负载相接触；但是现有喷嘴结构的喷射出口处的水流切向力较小，使得喷射出水发散距离较短、无法对内桶内部进行全面覆盖。因此，本发明为了要解决上述技术问题、克服现有技术的不足，提供一种喷嘴结构，以实现增大喷射覆盖面积的目的。
为实现上述发明目的，本发明采用技术方案的基本构思是：
本发明提供了一种喷嘴结构，其包括：喷射管，喷射管的出口端设有喷头，喷头上开设有喷射出口，喷头内设有将喷射管内水引流至喷射出口、增大喷射出口处水流切向加速度的流道。
进一步，喷头内部设有出水腔，喷射管的出水口端设有向外凸出、对应插入出水腔内的接头，接头外壁与出水腔内壁之间具有间隙，所述间隙构成流道，流道经接头与喷射管相连、还直接与喷射出口相连通。
进一步，接头的插入端封闭、另一端与喷射管相连通，接头外侧壁、封闭端与出水腔内壁之间均间隔设置，所述间隔处构成流道，接头靠近封闭端的侧壁上开设有过水孔，所述过水孔将接头内部通道与流道相连通；
优选的，接头的侧壁上间隔排布有多个过水孔。
进一步，喷射管的内周管径大于接头的内径、接头内径大于过水孔的宽度、过水孔的宽度大于流道的宽度；
优选的，喷射出口的孔径小于接头内径、大于流道宽度。
进一步，喷头包括端盖，端盖的中心处设有喷射出口；端盖的外周设有向喷射管侧弯折的、沿喷射管轴向延伸的一圈环形折边，环形折边的延伸端与喷射管的出水端相密封连接，环形折边内部构成出水腔；
优选的，折边的端部与喷射管出口端的端面对应贴合，贴合处经熔敷工艺处理密封相连；
优选的，喷射出口为一径向尺寸小于喷射管内径的圆孔。
进一步，喷射管的出口端设有对应插入出水腔内的接头，接头与喷射管同轴设置；接头的外周径向尺寸大于喷射管出口端的管径、小于环形折边的内周直径，接头的内周径向尺寸小于喷射管出口端的管径，使得接头的至少部分端面与喷射管出口端的端面在喷射管轴向方向上相重合、重合处对应贴合并密封连接，以实现喷射管内水仅能经接头流入出水腔、经出水腔内所设流道进行加压处理后再经喷射出口喷出的效果；
优选的，接头与喷射管一体设置。
采用上述技术方案后，本发明所述的喷嘴结构具有以下有益效果：
通过上述设置，可提升喷嘴结构内流向喷射出口水流的切向速度，使得喷射出口处的出水水流向四周发散，以实现自喷嘴结构喷射出口流出水流呈锥形发散状喷出的效果，进而达到增大喷嘴结构出水覆盖面积的显著技术进步。更特别的在于，上述喷嘴结构可使得喷出的添加剂溶液的喷射面积增大，进而使得添加剂投放装置经喷嘴结构向内筒内投放的添加剂溶液可与筒内负载充分接触、进而达到提升洗衣机洗涤效果的显著技术进步。
同时，本发明结构简单，效果显著，适宜推广使用。
下面结合附图对本发明的具体实施方式作进一步详细的描述。
附图说明
附图作为本发明的一部分，用来提供对本发明的进一步的理解，本发明的示意性实施例及其说明用于解释本发明，但不构成对本发明的不当限定。显然，下面描述中的附图仅仅是一些实施例，对于本领域普通技术人员来说，在不付出创造性劳动的前提下，还可以根据这些附图获得其他附图。在附图中：
图1至图3是本发明实施例中洗衣机的不同视角的结构示意图；
图4是本发明实施例中图3的A-A断面结构示意图；
图5是本发明实施例中上盖的第一部分去除后的洗衣机结构示意图；
图6是本发明实施例中上盖的第一部分去除后的洗衣机俯视结构示意图；
图7和图8是本发明实施例中添加剂投放装置爆炸后的洗衣机结构示意图；
图9是本发明实施例中喷嘴结构的结构示意图；。
图10是本发明实施例中图9的B-B断面结构示意图；
图11和图12是本发明实施例中喷嘴结构不同视角的爆炸结构示意图。
图中主要元件说明：
100、投放装置；200、外筒；300、内筒；400、窗垫；500、喷嘴结构；600、导管；1、供水水路；2、外壳；3、上盖；31、第一部分；32、第二部分；4、储液腔；5、储液盒；6、泵；7、连通器；8、抽液流道；11、出口；12、进口；13、吸液口；51、喷射管；52、喷头；53、喷射出口；54、出水腔；55、接头；56、流道；57、端盖；58、环形折边；59、过水孔；81、进口；82、出口。
需要说明的是，这些附图和文字描述并不旨在以任何方式限制本发明的构思范围，而是通过参考特定实施例为本领域技术人员说明本发明的概念。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对实施例中的技术方案进行清楚、完整地描述，以下实施例用于说明本发明，但不用来限制本发明的范围。
在本发明的描述中，需要说明的是，术语“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
如图1至图8所示，本发明实施例中还介绍了一种洗衣机，其包括：用于盛水的外筒200，外筒200内安装有可旋转的、用于待处理负载盛放的内筒300，用于向内筒300内直接投放添加剂的添加剂投放装置100。通过上述设置，使得洗衣机可实现添加剂直接向内筒300内进行投放、所投放的添加剂直接喷射至内筒300内待处理负载上的使用效果，进而达到提升添加剂使用率的显著技术进步。
如图1至图8所示，本发明实施例中所述的添加剂投放装置100，包括：供水水路1，用于供进入添加剂投放装置100的进水流经；投放单元，用于向供水水路1投放添加剂；喷嘴结构500，供水水路1的出口11与喷嘴结构500相连，喷嘴结构500朝向洗衣机内筒300内设置。在添加剂进行投放时，向供水水路中流入少量进水，使得添加剂在供水水路1内与少量进水相混合形成的添加剂溶液，供水水路1供给的添加剂溶液可经喷嘴结构500直接喷至内筒300内待处理负载上，进而使得所投放的添加剂利用率得到显著提升。
通过上述装置，使得添加剂直接经投放装置100上设置的水路向外投放，避免了添加剂流经水盒，不仅缩减了添加剂的流经路径，还减少了添加剂投放所需的冲洗水量，大大提升了添加剂利用率。
实施例一
如图1至图12所示，本实施例中介绍了一种喷嘴结构，其包括：喷射管51，喷射管51的出口端设有喷头52，喷头52上开设有喷射出口53，喷头52内设有将喷射管51内水引流至喷射出口53、增大流向喷射出口53处水流切向加速度的流道56。
通过上述设置，可提升喷嘴结构内流向喷射出口水流的切向速度，使得喷射出口处的出水水流向四周发散，以实现自喷嘴结构的喷射出口流出水流呈锥形发散状喷出的效果，进而达到增大喷嘴结构出水覆盖面积的显著技术进步。更特别的在于，上述喷嘴结构可使得喷出的添加剂溶液的喷射面积增大，进而使得添加剂投放装置经喷嘴结构向内筒内投放的添加剂溶液可与筒内负载充分接触、进而达到提升洗衣机洗涤效果的显著技术进步。
如图9至图12所示，本实施例中，喷头52对应扣合于喷射管51的出口端，喷头52与喷射管51的扣合相接处经熔敷工艺进行密封处理，以使得喷头52和喷射管51径熔敷工艺相连为一体，并可提升喷嘴结构的整体强度。
本实施例中，喷头52内部设有出水腔54，喷射管51的出水口端设有向外凸出、对应插入出水腔内的接头55，接头55外壁与出水腔54内壁之间具有间隙，所述间隙构成流道56，流道56经接头55与喷射管51相连、还直接与喷射出口53相连通。
本实施例中，接头55的插入端封闭、另一端与喷射管51相连通，接头55外侧壁、封闭端与出水腔54内壁之间均间隔设置，所述间隔处构成流道56，接头55靠近封闭端的侧壁上开设有过水孔59，所述过水孔59将接头55内部通道与流道56相连通。
通过将喷头结构的出水水流经接头侧壁流入水道，使得出水水流可经与喷射出口轴线相垂直的流道部流向喷射出口，避免了出水沿喷射管轴线直接流出，还实现了提升喷射出口处切向水流加速度的效果。
优选的，本实施例中，为了实现出水水流的发散效果进行如下设置：接头55的侧壁上间隔排布有多个过水孔59，相邻过水孔59之间的间距等大设置，使得接头55中水可自不同方向的过水孔59流入流道56中，以实现自多个不同径向方向流向喷射出口53、提升喷射出口53处不同方向水流径向加速度的效果，进而达到提升喷射出口53出水水流发散程度、增大喷射出水覆盖面积的显著技术进步。
本实施例中，喷射管51的内周管径大于接头55的内径、接头55内径大于过水孔59的宽度、过水孔59的宽度大于流道56的宽度。通过上述设置，使得喷嘴结构的内部水路径向宽度逐渐递减，利用各收窄部对流经水流进行加压处理，以进一步提升喷射出口处的水流发散效果、增大喷射覆盖面积。本实施例中，所述的流道56宽度为供水流流动的截面宽度；流道56分为两部分，第一部分为接头55外周壁与出水腔54内周壁之间的间隙，上述间隙在喷射管51径向方向的距离为流道56第一部分的宽度；第二部分为接头55封闭端与出水腔54下端面之间的间隙，上述间隙在喷射管51轴向方向的距离为流道56第二部分的宽度。
本实施例中，喷射出口53的孔径小于接头55内径、大于流道56宽度，以保证自流道56流至喷射出口53处的水流可自喷射出口53向四周径向发散喷射，达到喷射出口53向外喷射锥形发散状出水水流的效果。
本实施例中，喷头52包括端盖57，端盖57的中心处设有喷射出口53；端盖57的外周设有向喷射管51侧弯折的、沿喷射管51轴向延伸的一圈环形折边58，环形折边58的延伸端与喷射管51的出水端相密封连接，环形折边58内部构成出水腔54。
本实施例中，环形折边58的端部与喷射管51出口端的端面对应贴合，贴合处经熔敷工艺处理密封相连。
本实施例中，喷射出口53为一径向尺寸小于喷射管51内径的圆孔，喷射出口53、接头55均与喷射管51共轴设置。
本实施例中，喷射管51的出口端设有对应插入出水腔54内的接头55，接头55与喷射管51同轴设置；接头55的外周径向尺寸大于喷射管51出口端的管径、小于环形折边58的内周直径，接头55的内周径向尺寸小于喷射管51出口端的管径，使得接头55的至少部分端面与喷射管51出口端的端面在喷射管51轴向方向上相重合、重合处对应贴合并密封连接，以实现喷射管51内水仅能经接头流入出水腔54、经出水腔54内所设流道56进行加压处理后再经喷射出口53喷出的效果。
优选的，本实施例中，接头55与喷射管51一体设置。
实施例二
如图1至图8所示，本实施例中介绍了一种洗衣机用添加剂投放装置，其包括：供水水路1；投放单元，用于向供水水路1投放添加剂；供水水路1的出口与上述任一所述的喷嘴结构500相连，喷嘴结构500将供水水路供给的添加剂溶液喷射至洗衣机的内筒300中。
本实施例中，供水水路1集成于添加剂投放装置100的外壳2上，供水水路1的出口11设于外壳2的外侧，喷嘴结构设于外壳2外部，供水水路1的出口11经导管600与喷嘴结构相连通。通过在添加剂投放装置100的外壳2上集成设置供水水路1，供水水路1的出口11直接与喷嘴结构相连，以将经供水水路1抽出的添加剂及进水共同喷出，进而实现添加剂投放装置100不经投放装置100的水盒部分、而直接由喷嘴结构向外进行喷射投放的目的。
如图7和图8所示，本实施例中，添加剂投放装置100的外壳2的顶部为上盖3，供水水路1设于上盖3内部，供水水路1的出口11裸露于上盖3的外周侧，导管600的进口端与供水水路1的出口11相连通、导管600的出口端与设于外壳2外部的喷嘴结构500相连通；优选的，上盖3包括上下相互扣合的第一部分31和第二部分32，第一部分31和第二部分32相对拼接、在相接面处形成供水水路1。进一步优选的，上盖3的第一部分31和第二部分32经熔敷工艺相连，以在内部形成封闭的、可承压的水路结构。
从而，使得添加剂投放装置100的供水水路1集成设置于上盖3上，使得投放装置100的进水和添加剂直接经上盖3内部的供水水路1进行投放，进而实现添加剂直接由上盖3外周侧的出口11向外流出、进行投放的效果。
本发明实施例中，投放单元包括供添加剂存储的储液腔4，储液腔4与供水水路1相连通；投放装置100上还设有动力单元，对储液腔4内的添加剂抽入供水水路提供动力。
如图1至图8所示，本实施例中，动力单元为设于储液腔4与供水水路1相连的抽液流道8上的泵6，为抽液流道8内液体提供自储液腔4向供水水路1方向流动的驱动力。本发明实施例中，抽液流道8也集成设置于上盖3内部，抽液流道8的进口81经连通器7与储液腔4相连通，抽液流道8的出口82与泵6的进口相连通，泵6的出口与供水水路1上设置的吸液口13相连通。通过控制泵6的启停，以实现将储液腔4内的添加剂抽送至供水水路1中进行投放的目的。
本发明实施例中，所述的动力单元还可以设置现有的其他结构，例如：所述的动力单元为抽吸泵，抽吸泵的抽吸口与供水水路1相连通，使供水水路1内形成负压、将储液腔4内的添加剂经抽液流道8抽至供水水路1；
和/或，所述的动力单元还可以为设于供水水路1上的文丘里管，文丘里管上设有管径突变的负压区域，负压区域可利用流经水流在此形成负压，文丘里管的负压区域设有抽吸口，抽吸口经抽液流道8与储液腔4相连通(未在附图中注明)。
本实施例中，添加剂投放装置100包括多个储液腔4，各储液腔4可分别盛放不同类别的添加剂，例如：洗涤剂、柔顺剂、添香剂、消毒剂等等；投放装置100上设有控制装置，控制装置用于控制各储液腔4择一、或组合的与供水水路1相连通，以向供水水路1内对应投放任一、或同时投放多种组合类别的添加剂。
本发明实施例中，所述的控制装置可以设置为现有任一可实现上述功能的结构；例如：
本发明实施例中，可以将各储液腔4分别经设有控制阀的流道与供水水路1相连通，以通过控制各控制阀的开闭，实现各流道的分别、或组合的通断控制的效果，进而实现对任一类别添加剂独立投放、或多种类别添加剂同时投放的目的；
还可以将各储液腔4与同一换向阀的不同进口相一一对应的连通，换向阀的出口与供水水路1相连通，换向阀内设有可旋转的阀芯，用于控制任一或组合的进口与出口相连通，同样可实现对任一类别添加剂独立投放、或多种类别添加剂同时投放的目的(未在附图中注明)。
如图1至图8所示，本实施例中，投放装置100的外壳2内设有储液盒5，所述储液盒5可向外抽拉的安装于添加剂投放装置100的外壳2内；储液盒5内设有供添加剂存储的至少一个储液腔4，储液盒5上的各储液腔4均经连通器7与供水水路1的相连通，连通器7上设有控制装置用于控制各储液腔4择一或组合的、可控通断的与供水水路1相连通。
本实施例中，供水水路1的进口12设于外壳2的外壁上，供水水路1的进口12与洗衣机进水管相连通，以使得洗涤进水可经进口12流入供水水路1中。添加剂投放装置100的外壳2上设有进水接头，进水接头的两端分别与供水水路1的进口12、洗衣机进水管相连通；进一步优选的，进水接头处安装有控制水路通断的控制阀。
如图6至图8所示，本实施例中，供水水路1的中部设置吸液口13，所述吸液口13与投放单元相连通，使得添加剂自吸液口13抽入供水水路1中。优选的，吸液口13与泵6的出口相连通、泵6的进口与抽液流道8的出口82相连通、抽液流道8的进口81与连通器7的出口相连通、连通器7的多个进口与各储液腔4相一一对应的连通，以实现储液腔4内的添加剂经上述流道、在泵6的驱动作用下被抽入供水水路1的目的。
如图6所示，本实施例中，吸液口13下游的供水水路1部分可对流入供水水路1中的添加剂与进水进行混合、以形成添加剂溶液。优选的，吸液口13靠近供水水路1的进口12设置，以尽量延长吸液口13下游的供水水路1长度，使得供水水路1共添加剂与水相混合的下游部分空间增大、进而提升添加剂与进水之间的混合均匀度。
实施例三
如图1至图12所示，本实施例中还介绍了一种安装有上述实施例二所述添加剂投放装置100的洗衣机，其包括：外筒200，外筒200内套装有与外筒同侧设置筒口的内筒300，外筒200的筒口处连接有向筒外凸出延伸的窗垫400，喷嘴结构500安装于窗垫400处，喷嘴结构500的喷射出口53处于窗垫400的内周侧、朝向内筒300的筒口喷射添加剂溶液。
如图1至图8所示，外筒200的筒口处安装有一圈窗垫400，窗垫400呈筒状，筒状窗垫400的一端与外筒200筒口相连、另一端与洗衣机壳体相连，以形成通道；内筒300的筒口与上述通道的一端相对连通，洗衣机壳体上设有与上述通道另一端对应连通的衣物投放口，洗衣机壳体上安装有可对应开闭衣物投放口的门体，门体闭合后使得外筒200内部形成封闭空间；门体与窗垫400之间具有间隙空间，间隙空间直接经内筒300筒口与内筒300内部相连通；所述的喷嘴结构500安装于窗垫400的顶部，喷嘴结构500穿过窗垫400，喷嘴结构500处于窗垫400内周侧的部分具有喷射出口、处于窗垫400外周侧的部分具有进口，喷嘴结构500内部具有流道，流道两端分别与进口和喷射出口相连通，所述喷射出口朝向内筒300筒口方向设置，使得自喷嘴结构500喷出的添加剂溶液可直接喷入内筒300内，以实现添加剂直接喷射至内筒300内待处理负载上、提升添加剂投放效率的显著技术进步。
本发明实施例中，所述的喷嘴结构500可以为现有的任一的喷射结构，所述的喷射出口可以设置为间隔排布的多个喷射小孔、也可以设置为单一的开口；优选的，喷嘴结构50采用上述实施例一所述的喷嘴结构500。
本实施例中，窗垫400为一沿外筒200筒口周向延伸一圈的环形结构；喷嘴结构500设于环形窗垫400的顶部，以使得喷嘴结构500喷射出的添加剂溶液可尽量增长喷射距离、进而增大添加剂溶液的覆盖面积。本实施例中，喷嘴结构500的喷射管51穿过窗垫400，喷头52处于窗垫环形400内周侧，喷射管51的轴线朝向下方、洗衣机内筒300内部一侧倾斜设 置。优选的，喷射管51的轴线延长线与内筒300的内筒底、或靠近内筒底处的内筒侧壁下端部相交，以使得喷嘴结构的喷射覆盖面积最大化。
本实施例中，喷射管51轴线与洗衣机内筒300的轴线处于同一平面中，以使得喷嘴结构500处于内筒300水平方向的中心部位，进而保证喷嘴结构500可对内筒300中的左右两侧进行均匀喷射添加剂溶液、提升负载与添加剂溶液的接触度。优选的，喷射管51轴线与洗衣机内筒300轴线之间的夹角为20度至60度，以最大化的提升喷嘴结构喷出的添加剂溶液覆盖面积。
本实施例中，洗衣机内设有一独立设置的、处于添加剂投放装置100的外壳外部、外筒200外部的导管600，导管600的两端分别与喷嘴结构500的进口和供水水路1的出口11相对插接连通，以使得供水水路1供给的添加剂溶液可直接经导管600引流至喷嘴结构500处，实现向洗衣机内筒300内直接进行喷射投放的效果。优选的，上述的导管600为橡胶等材质构成的，其本身可产生弯折变形。
本发明通过在洗衣机上设置上述添加剂投放装置100，使得洗衣机的添加剂直接经供水水路1流向喷嘴结构500、由喷嘴结构500直接喷入内筒300内，进而实现洗衣机的添加剂不经水盒、不经内筒300外部的外筒200，而是直接由投放装置100的水路流入内筒300内、喷射至待处理负载，进而实现了向内筒300内待处理负载直接喷射添加剂溶液的目的。同时，通过上述设置，使得装有上述添加剂投放装置100的洗衣机，可以实现添加剂在供水水路1内与少量进水相混合形成的添加剂溶液直接喷至内筒300内待处理负载上，进而使得所投放的添加剂利用率得到显著提升。
.本发明实施例中，喷嘴结构500还可以设于洗衣机的壳体、和/或门体、和/或外筒200、和/或窗垫400上，喷嘴结构500的喷射出口朝向内筒300内部开设，喷嘴结构500喷出的添加剂直接喷入内筒300内部。
以上所述仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专利的技术人员在不脱离本发明技术方案范围内，当可利用上述提示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明方案的范围内。

Claims (20)

  1. 一种喷嘴结构，其包括：喷射管，其特征在于：喷射管的出口端设有喷头，喷头上开设有喷射出口，喷头内设有将喷射管内水引流至喷射出口、增大喷射出口处水流切向加速度的流道。
  2. 根据权利要求1所述的一种喷嘴结构，其特征在于，喷头内部设有出水腔，喷射管的出水口端设有向外凸出、对应插入出水腔内的接头，接头外壁与出水腔内壁之间具有间隙，所述间隙构成流道，流道经接头与喷射管相连、还直接与喷射出口相连通。
  3. 根据权利要求2所述的一种喷嘴结构，其特征在于，接头的插入端封闭、另一端与喷射管相连通，接头外侧壁、封闭端与出水腔内壁之间均间隔设置，所述间隔处构成流道，接头靠近封闭端的侧壁上开设有过水孔，所述过水孔将接头内部通道与流道相连通；
    优选的，接头的侧壁上间隔排布有多个过水孔。
  4. 根据权利要求3所述的一种喷嘴结构，其特征在于，喷射管的内周管径大于接头的内径、接头内径大于过水孔的宽度、过水孔的宽度大于流道的宽度；
    优选的，喷射出口的孔径小于接头内径、大于流道宽度。
  5. 根据权利要求1至4任一所述的一种喷嘴结构，其特征在于，喷头包括端盖，端盖的中心处设有喷射出口；端盖的外周设有向喷射管侧弯折的、沿喷射管轴向延伸的一圈环形折边，环形折边的延伸端与喷射管的出水端相密封连接，环形折边内部构成出水腔；
    优选的，环形折边的端部与喷射管出口端的端面对应贴合，贴合处经熔敷工艺处理密封相连；
    优选的，喷射出口为一径向尺寸小于喷射管内径的圆孔。
  6. 根据权利要求5所述的一种喷嘴结构，其特征在于，喷射管的出口端设有对应插入出水腔内的接头，接头与喷射管同轴设置；接头的外周径向尺寸大于喷射管出口端的管径、小于环形折边的内周直径，接头的内周径向尺寸小于喷射管出口端的管径；优选的，接头与喷射管一体设置。
  7. 一种添加剂投放装置，其包括：供水水路；投放单元，用于向供水水路投放添加剂；其特征在于：供水水路的出口与喷嘴结构相连。
  8. 根据权利要求7所述的一种添加剂投放装置，其特征在于，供水水路集成于投放装置的外壳上，供水水路的出口设于外壳的外侧，喷嘴结构设于外壳外部，供水水路的出口经导管与喷嘴结构相连通。
  9. 根据权利要求8所述的一种添加剂投放装置，其特征在于，投放装置的外壳的顶部为上盖，供水水路设于上盖内部，供水水路的出口裸露于上盖的外周侧；外壳外部设有一独立的导管，导管的进口端与供水水路的出口相连通、导管的出口端与设于外壳外部的喷嘴结构相连通。
  10. 根据权利要求7至9任一所述的一种添加剂投放装置，其特征在于，投放单元包括供添加剂存储的储液腔，储液腔与供水水路相连通；投放装置上还设有动力单元，对储液腔内的添加剂抽入供水水路提供动力。
  11. 根据权利要求10所述的一种添加剂投放装置，其特征在于，动力单元为设于储液腔与供水水路相连流道上的泵，为流道内液体提供自储液腔向供水水路方向流动的驱动力；
    和/或，动力单元为抽吸泵，抽吸泵的抽吸口与供水水路相连通，使供水水路内形成负压、将储液腔内的添加剂经流道抽至供水水路；
    和/或，动力单元为设于供水水路上的文丘里管，文丘里管具有可利用流经水流形成负压的负压区域，负压区域设有抽吸口，抽吸口经流道与储液腔相连通。
  12. 根据权利要求10所述的一种添加剂投放装置，其特征在于，包括多个储液腔，投放装置上设有控制装置，控制各储液腔择一、或组合的与供水水路相连通；
    优选的，各储液腔分别经设有控制阀的流道与供水水路相连通；
    优选的，各储液腔与同一换向阀的不同进口相一一对应的连通，换向阀的出口与供水水路相连通，换向阀内设有可旋转的阀芯，用于控制任一或组合的进口与出口相连通。
  13. 根据权利要求7至12任一所述的一种添加剂投放装置，其特征在于，投放装置的外壳内设有储液盒，储液盒内设有供添加剂存储的至少一个储液腔，储液盒上的各储液腔与供水水路分别相连通。
  14. 根据权利要求7至13任一所述的一种添加剂投放装置，其特征在于，供水水路上设有与投放单元相连通的、供添加剂流入的吸液口，吸液口靠近供水水路的进口设置。
  15. 根据权利要求7至14任一所述的一种添加剂投放装置，其特征在于，供水水路的出口相连的喷嘴结构采用上述权利要求1至6任一所述的喷嘴结构。
  16. 一种洗衣机，其包括，用于待处理负载盛放的内筒，其特征在于：还包括上述权利要求7至15任一所述的添加剂投放装置，添加剂投放装置的供水水路的进口与洗衣机进水管相连通，添加剂投放装置的喷嘴结构朝向洗衣机的内筒内喷射。
  17. 根据权利要求16所述的一种洗衣机，其特征在于，喷嘴结构设于洗衣机的壳体、和/或门体、和/或外筒、和/或窗垫上，喷嘴结构的喷射出口朝向内筒内部开设。
  18. 根据权利要求16所述的一种洗衣机，其特征在于，喷嘴结构安装于内筒筒口处，喷嘴结构的喷射出口朝向内筒内部开设。
  19. 根据权利要求18所述的一种洗衣机，其特征在于，内筒套装于外筒中，外筒与内筒同轴设置、并在同侧开设筒口，外筒的筒口处连接有向筒外凸出延伸的窗垫；喷嘴结构设于窗垫上，喷嘴结构的喷射管穿过窗垫，喷头处于窗垫内周侧，喷射管的轴线朝向下方、洗衣机内筒内部一侧倾斜设置。
  20. 根据权利要求19所述的一种洗衣机，其特征在于，喷嘴结构设于环形窗垫的最顶部；喷射管的轴线与内筒的轴线处于同一平面中。
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