WO2020098519A1 - 一种洗衣机及其控制方法 - Google Patents

一种洗衣机及其控制方法 Download PDF

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Publication number
WO2020098519A1
WO2020098519A1 PCT/CN2019/115233 CN2019115233W WO2020098519A1 WO 2020098519 A1 WO2020098519 A1 WO 2020098519A1 CN 2019115233 W CN2019115233 W CN 2019115233W WO 2020098519 A1 WO2020098519 A1 WO 2020098519A1
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WO
WIPO (PCT)
Prior art keywords
water
washing machine
water level
inner tub
drainage
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PCT/CN2019/115233
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English (en)
French (fr)
Inventor
公涛
刘尊安
程宝珍
孙广彬
王玲臣
Original Assignee
青岛海尔洗衣机有限公司
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Application filed by 青岛海尔洗衣机有限公司 filed Critical 青岛海尔洗衣机有限公司
Priority to JP2021525227A priority Critical patent/JP7308941B2/ja
Publication of WO2020098519A1 publication Critical patent/WO2020098519A1/zh

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    • 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
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis
    • 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
    • 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
    • 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
    • D06F39/083—Liquid discharge or recirculation arrangements

Definitions

  • the invention belongs to the field of household appliances, and specifically relates to a washing machine and a control method thereof.
  • the inner tub is provided with a water permeable hole, the inner tub and the outer tub are connected, the inner tub is a washing tub, and the outer tub is a water tub, and the part of the water filled between the inner tub and the outer tub side wall does not participate in washing, and really participates in washing
  • the water is only the part in the inner bucket, which makes the water resources more wasteful.
  • too much water between the inner and outer buckets will also reduce the concentration of detergent / washing powder in the washing liquid.
  • washing machine without water between the buckets during washing. Only a circle of dehydration holes is provided on the top of the inner bucket, and a drain hole that can be opened and closed is provided on the top. water.
  • the above-mentioned washing machine cannot directly install a water level detection device at the inner bucket because the inner and outer buckets are not connected.
  • a flow meter is installed at the water inlet device to determine the amount of water in the inner bucket by calculating the total flow through the inlet valve. Detecting the amount of water in the inner barrel may be inaccurate, and due to water quality and other reasons, the flow rate may be invalid and the water intake cannot be stopped.
  • the above washing machine also has a dual-power setting method, that is, during the washing process, both the inner tub and the pulsator rotate, and the drain hole of the inner tub cannot be blocked by the valve plug provided in the outer tub, nor can the water level of the inner tub be detected.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a washing machine and its control method.
  • a washing machine includes an inner tub and a water collecting device.
  • the inner tub is used to hold water during the washing process.
  • a drain hole is provided at the bottom of the inner tub.
  • a water level detection device is also provided.
  • a normally closed water sealing device is provided at the drain hole.
  • a movable jack is provided at a position corresponding to the water sealing device, which can open the water sealing device to make the inner tub and the water level detecting device sealed and communicate with each other.
  • the washing machine further includes a communication pipe corresponding to the position of the drain hole, the ejector rod is disposed inside the communication pipe, one end of the communication pipe communicates with the water level detection device, and the other end is an open opening toward the drain hole.
  • the communication pipeline is a retractable pipeline / movable pipeline, and one end of the opening can be extended upward to stop against the bottom of the inner tub, and the open end of the communication pipeline is fixedly connected with the ejector rod or separately provided.
  • a water sealing ring is provided at the opening of the communication pipeline, and the diameter of the water sealing ring is larger than the diameter of the drain hole; preferably, the position of the water sealing ring is higher than the top of the ejector rod.
  • the water sealing device includes a water sealing cap and a return spring.
  • the ejector rod contacts the water seal cap and can lift the water seal cap.
  • the return spring returns the water seal cap after the ejector rod is separated from the water seal cap. Into a closed state.
  • the washing machine is further provided with a drainage pipe, and one end of the communication pipe communicating with the water level detection device is also communicated with the drainage pipe; preferably, the communication pipe is provided with a three-way structure, respectively connected to the water level detection device and the drainage pipe Road, the drainage pipeline is provided with a drainage valve to control the on-off of the drainage pipeline.
  • the jack has a first driving device, and the opening end of the communication pipeline has a second driving device, and the first driving device and the second driving device can be driven separately.
  • a control method of a washing machine The washing machine is as described above.
  • the control method includes the washing machine pushing up the water sealing device when the inner tub is stationary.
  • the inner tub is connected to the water level detecting device to perform water level detection.
  • the one end of the communication pipe of the washing machine that communicates with the water level detection device is also connected with a drainage line.
  • the communication line is provided with a three-way structure, which is respectively connected to the water level detection device and the drainage line.
  • the drainage line is provided with a drainage valve
  • the control method includes that, when the inner barrel is stationary and the water level in the inner barrel needs to be detected, with the drainage valve closed, the ejector rod and the communication pipeline move upward to open the water seal to make the inner barrel It is in sealed communication with the water level detection device.
  • the drainage valve is opened, and the ejector rod moves upward to eject the water seal.
  • the ejector rod and the communication pipeline of the washing machine can be driven separately.
  • the control method includes when the inner tub is stationary and the water level of the inner tub needs to be detected, the communication pipeline moves upward to seal the drainage hole, and the ejector rod moves upward to open the water seal to make The water in the inner tub is connected to the water level detecting device through the connecting pipeline to perform water level detection.
  • the ejector rod moves upward to open the water sealing cap, and the inner tub communicates with the water collecting device for drainage.
  • the present invention has the following beneficial effects compared with the prior art.
  • the inner bucket is provided with a normally closed water sealing device, which can achieve self-sealing without interference from other components. There is no need to provide a member for blocking the drain hole on the water collection device.
  • the inner bucket can be rotated during the washing process to achieve The dual power of the washing process;
  • the structure is simple and easy to implement, and the water level detection can be directly detected by communicating with the inner barrel to obtain more accurate detection results.
  • FIG. 1 is a schematic diagram of the washing machine of the present invention
  • FIG. 2 is a partially enlarged view of A in FIG. 1 of the present invention.
  • FIG. 3 is a schematic diagram of the control method of water level detection of the present invention.
  • FIG. 5 is a schematic diagram of the control method of water level detection of the present invention.
  • FIG. 6 is a schematic diagram of the drainage control method of the present invention.
  • connection should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly or indirectly through an intermediary.
  • connection should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly or indirectly through an intermediary.
  • the present invention relates to a washing machine including an inner tub 1 and a water collecting device 2, a drain hole 11 is provided at the bottom of the inner tub 1, and a side wall of the inner tub 1 is only provided with a circle of dehydration at the top During the dehydration process, the inner bucket rotates to remove the residual water in the inner bucket 1 through the upper dehydration hole, and the water flows into the water collecting device 2 and is discharged out of the body.
  • a valve plug is provided at the drain hole, and the valve plug is provided on the water collecting device, and the drain hole is opened and closed by the up and down movement.
  • the valve plug stops against the drain hole during the washing process, so during the washing process , The inner barrel cannot be turned. Therefore, the installation method of the valve plug restricts the movement of the inner tub. Therefore, a water sealing device is provided at the drain hole 11 of the inner tub of the present invention. The water sealing device is normally closed to ensure that the inner tub can hold water and rotate when it is washed with water. , To provide power for washing.
  • FIG. 2 is a partial enlarged view at A in FIG. 1, which can more clearly show the structure of the water sealing device and the like.
  • the water sealing device is a mechanical structure, which can be installed on the top of the water collecting device 2
  • the rod 4 is used to open the water sealing device.
  • the ejector rod 4 is provided with a driving device at the lower part to drive the ejector rod 4 to move up and down.
  • the ejector rod 4 moves away from the water sealing device, so that the water sealing device is in a closed state
  • the upward movement of the jack 4 can stop the water sealing device.
  • the washing machine of the present invention further includes a water level detection device 6, the water level detection device 6 is provided with an air chamber, the air chamber communicates with the bottom of the water container, the water pressure in the water container compresses the gas in the air chamber, and passes through the air measurement chamber To obtain the corresponding water level data.
  • the washing machine of the present invention is also provided with a communication pipeline 5.
  • the ejector 4 pushes the water sealing device
  • the water in the inner tub 1 can communicate with the water level detection device 6 through the communication pipeline 5, so that the water level in the inner tub 1 is detected.
  • the ejector rod 4 is provided inside the communication pipe 5.
  • the water sealing device can be ejected from the ejector rod 4, so that the water from the drain hole 11 can directly enter the communication
  • the pipeline 5 communicates with the water level detection device 6 again.
  • One end of the communication pipe communicates with the water level detection device 6, that is, the air chamber, and the other end is an open opening, which is used to surround the drain hole 11 after movement, so that the water in the drain hole 11 flows out along the communication pipe 5, Enter the water level detection device 6. Since the open opening needs to surround the drain hole 11, the installation position should correspond to the position of the drain hole 11, that is, the communication pipe 5 is aligned with the position of the drain hole 11. After the water sealing cover 31 provided at the drain hole 11 is opened, the communication pipe The path 5 can seal and surround the drain hole 11 so that the water in the inner tub 1 does not leak into the water collecting device 2 but flows into the communication pipe 5 to detect the water level.
  • the communication pipeline 5 may be set as a hard pipeline, so that the entire pipeline can For movement, it can also be set as a retractable pipeline at a position close to the drain hole 11, and a telescopic section 52 is provided to seal and detach the drain hole 11.
  • a telescopic section 52 is provided to seal and detach the drain hole 11.
  • the jack 4 and the communication pipe 5 both need to move upward when the water level needs to be detected, one end of the communication pipe 5 can be fixedly connected to the jack 4 and move together, but due to different drainage settings, the communication pipe 5 and The ejector rod 4 can also be provided separately and driven separately, so that the water in the inner tub 1 can also be discharged into the water collecting device 2 after the ejector rod 4 pushes the unsealing device.
  • the opening of the communication pipe 5 is further provided with a water seal ring 51.
  • the water seal ring 51 may be made of rubber.
  • the purpose of the water seal ring 51 is to connect the pipeline 5 and the inner tub When the 1 is connected, the water in the inner tub 1 is prevented from leaking through the connection and entering the water collecting device 2, which results in inaccurate water level detection results. Therefore, a water sealing ring 51 is provided, so that when the communication pipeline 5 stops against the bottom of the inner tub 1, a sealing structure is formed, which can ensure that there is no water leakage and the accuracy of the detection result.
  • the diameter of the water seal ring 51 needs to be larger than the diameter of the drain hole 11. If the water seal ring 51 and the drain hole 11 are not circular, the size of the water seal ring 51 needs to be able to enclose the drain hole 11 all inside to be sealed. effect.
  • the communication pipeline 5 should be set in place to ensure a sealed environment,
  • the ejector rod 4 is in contact with the water sealing device again, and the water sealing device is pushed open, so that the water in the inner tub 1 enters the communication pipe 5.
  • the position of the water seal ring 51 is higher than the top of the top rod 4, so that the water seal ring 51 can first contact the inner tub 1 to form a sealed structure. Since both the rubber and the pipeline have shrinkage, the water seal ring 51 After contact with the inner tub 1, the ejector rod 4 can still move upward to eject the water sealing device.
  • the water sealing device includes a water sealing cap 31.
  • the top of the water sealing cap 31 is an arc spherical surface, which is convenient for reducing the force of water on the water sealing cap when the jack 4 is lifted up.
  • the water cover 31 matches the drain hole 11 and is provided with a structure such as a seal ring to prevent water leakage.
  • the water sealing cap 31 extends from the lower end of the water sealing cap 31, and the lifting part is a position for cooperating with the top rod 4, and the top rod 4 is aligned with the top
  • the entire sealing cap 31 can be lifted up from the raised portion, so that the sealing cap 31 is separated from the inner tub 1, and the water in the inner tub 1 flows out from the drain hole 11.
  • the water sealing device Since the water sealing device is normally closed, it is also provided with a return spring 32. When there is no external force such as the ejector 4, the water sealing device is normally closed under the action of the return spring 32 to ensure Seal of the bottom of the inner barrel 1.
  • the return spring 32 is installed on the outer periphery of the jacking portion. One end of the return spring 32 abuts against the water sealing cover 31, and the other end stops at a fixed position, and is limited to a chamber by screws.
  • a drain hole is generally provided at the bottom of the inner tub, and the drain hole is generally capable of communicating with a water collecting device for discharging water in the inner tub through the water collecting device to the outside of the machine body.
  • the present invention is provided with a communication line 5 that can communicate with the water level detection device 6 at the drain hole 11 of the inner tub, there may be two embodiments for draining the inner tub.
  • the drainage of the inner barrel also flows through the connecting pipeline for drainage.
  • the communication pipeline 5 is provided with a three-way structure at one end of the water level detection device 6, so that the water from the communication pipeline 5 can flow into the water level detection device 6 to detect the water level, and can also flow into the drainage pipeline for drainage . Control the two by setting up valves and other structures to achieve the functions of water level detection and drainage.
  • the drainage pipeline is provided with a drainage valve, and the above-mentioned functions can be realized by turning on and off the drainage valve.
  • FIGS. 3 and 4 The control method of the above setting mode is shown in FIGS. 3 and 4.
  • FIG. 3 is a control method that requires water level detection in the case of the above setting
  • FIG. 4 is a control method that needs drainage in the case of the above setting.
  • the inner tub 1 of the washing machine can be set to rotate during the washing process to achieve dual-power washing, during the rotation of the inner tub 1, the ejector 4 and the communication line 5 cannot contact the inner tub 1 to avoid hindering the rotation of the inner tub.
  • the inner tub 1 stops rotating it will stop at a designated position, which enables the water sealing device to be aligned with the ejector 4 and the communication pipe 5 to achieve the purpose of opening and communication.
  • the washing machine controls the drain valve to be closed, and then performs subsequent operations.
  • the top rod 4 and the communication pipe 5 move upward (can be moved at the same time, or be driven separately), and the water seal ring 51 on the communication pipe 5 abuts against the bottom of the inner tub 1 to achieve a sealed and enclosed drainage
  • the ejector rod 4 continues to move upwards, and the water cover 31 is opened.
  • the water in the inner tub 1 can flow out from the drain hole 11, and then communicate with the water level detection device 6 through the communication pipeline 5, the inner tub
  • the water pressure in 1 acts on the gas in the air chamber, and reacts to the water level in the inner tub 1 by the air pressure in the air chamber.
  • the water level detection device 6 feeds back the data to the washing machine, and the water level detection process is completed.
  • the driving devices of the ejector rod 4 and the communication pipeline 5 may also be driven separately to satisfy the operation of first sealing the drain hole 11 and then pushing the water sealing device to open.
  • the top rod 4 and the communication line 5 move upward, the water seal ring 51 of the communication line 5 and the inner barrel 1 stop against the surrounding drainage hole 11 to form a sealed connection, Then, the top rod 4 lifts the water sealing device, so that the inner tub 1 communicates with the water supply and drainage pipeline to discharge the water in the inner tub.
  • the above-mentioned setting method can make the water in the inner bucket not need to enter the water collecting device during the drainage process, which avoids the residual washing water in the water collecting device to breed bacteria and is not conducive to cleaning.
  • the jack and the connecting pipeline are driven separately, and the drainage is still drained through the water collecting device.
  • the ejector rod 4 and the communication pipe 5 have different functions.
  • the ejector rod 4 is used to lift the water sealing device to realize the communication between the inner tub 1 and the outside, and the function of the communication pipe 5 is to drain the hole 11 Surrounded to realize the connection between the inner barrel 1 and the water level detection device 6 to realize the water level detection. Therefore, the jack 4 can be provided with a first driving device, and the communication pipe 5 can be provided with a second driving device. The two can be driven separately.
  • the inner tub 1 needs to be drained, only the jack 4 is driven to open the water sealing device, thereby The water in the inner tub 1 flows into the water collecting device 2, and the washing machine then discharges the water in the water collecting device 2 to achieve drainage.
  • the jack 4 and the communication pipeline 5 are driven, and The communication pipeline 5 can be driven to close first, and then the ejector 4 can be driven to open the water sealing device so that the water in the inner tub 1 enters the water level detection device 6 through the closed flow channel.
  • FIG. 5 is a control method that requires water level detection in this embodiment
  • FIG. 6 is a control method that needs drainage in this embodiment.
  • the jack 4 and the communication pipe 5 move upward, and the water seal ring 51 of the communication pipe 5 and the bottom of the inner bucket 1 abut and surround the drain hole 11 to form a sealed structure ,
  • the top rod 4 continues to move upward to open the water-seal cap 31, and connect the inner tub 1 to the communication pipeline 5.
  • the water in the inner tub 1 flows into the water level detection device 6 through the communication pipeline 5. Give the washing machine and the test is over.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

本发明公开了一种洗衣机及其控制方法。本发明的洗衣机包括内桶和集水装置，所述内桶在洗涤过程中用于盛水，所述内桶底部设置有排水孔，还包括水位检测装置，所述排水孔处设置有常闭封水装置，与封水装置对应的位置设置有可移动的顶杆，能够顶开封水装置使内桶与水位检测装置密封连通。所述控制方法为上述洗衣机的控制方法，洗衣机在内桶静止时顶杆顶起封水装置，内桶与水位检测装置连通进行水位检测。本发明的洗衣机洗涤时桶间无水，节约水资源且可防止桶间残留污染衣物，且封水结构不影响内桶的转动，能够实现内桶波轮双动力洗涤，水位检测装置直接与内桶连通，结果更准确。

Description

一种洗衣机及其控制方法 技术领域
本发明属于家用电器领域，具体地说，涉及一种洗衣机及其控制方法。
背景技术
通常的波轮洗衣机，内桶设置有透水孔，内外桶之间连通，内桶为洗涤桶，外桶为盛水桶，而内桶与外桶侧壁之间充满的这部分水不参与洗涤，真正参与洗涤的水仅是内桶中的那部分，这使得水资源浪费较大，另外，内外桶之间过多的水也会降低洗涤液中洗涤剂/洗衣粉的浓度。与此同时，由于水流在内桶、外桶之间频繁进出，持续使用之后，内桶与外桶的侧壁之间的区域也成了藏污纳垢的空间，自来水里的水垢、洗衣粉的游离物、衣物的纤维素、人体的有机物及衣物带入的灰尘与细菌极易滞留在内桶与外桶的侧壁之间。
现有技术中存在一种洗涤时桶间无水的洗衣机，仅在内桶顶部设置有一圈脱水孔，顶部设置有可开闭的排水孔，在洗涤时封闭排水孔，即可实现内外桶间无水。上述洗衣机由于内外桶不连通，无法直接在内桶处设置水位检测装置，通常在进水装置处设置流量计，通过计算通过进水阀的总流量来判断内桶中的水量，上述设置方式由于是间接检测内桶中的水量，可能会不准确，且由于水质等原因可能会造成流量失效而无法停止进水。
上述洗衣机还具有双动力的设置方式，即在洗涤过程中，内桶与波轮均转动，无法通过设置在外桶的阀塞对内桶对排水孔进行封堵，也无法对内桶进行水位检测。
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，提供一种洗衣机及其控制方法。
为解决上述技术问题，本发明采用技术方案的基本构思是：
一种洗衣机，包括内桶和集水装置，所述内桶在洗涤过程中用于盛水，所述内桶底部设置有排水孔，还包括水位检测装置，所述排水孔处设置有常闭封水装置，与封水装置对应的位置设置有可移动的顶杆，能够顶开封水装置使内桶与水位检测装置密封连通。
所述洗衣机还包括与排水孔位置对应的连通管路，所述顶杆设置在连通管路内部，所述连通管路一端连通水位检测装置，另一端为朝向排水孔的敞开式开口。
所述连通管路为可伸缩管路/可移动管路，开口一端可以向上伸出与内桶底部止抵，所述连通管路开口一端与顶杆固定连接或分体设置。
所述连通管路的开口处设置有封水环，所述封水环的直径大于排水孔的直径；优选地，所述封水环位置高于所述顶杆顶部。
所述封水装置包括封水盖和复位弹簧，所述顶杆与封水盖接触并能够将封水盖顶起，所述复位弹簧在顶杆与封水盖脱离后令封水盖回位成关闭状态。
所述洗衣机还设置有排水管路，所述连通管路与水位检测装置连通的一端还与排水管路连通；优选地，所述连通管路设置有三通结构，分别连接水位检测装置和排水管路，所述排水管路设置有排水阀控制排水管路的通断。
所述顶杆具有第一驱动装置，所述连通管路开口端具有第二驱动装置，所述第一驱动装置与第二驱动装置可分别驱动。
一种洗衣机的控制方法，洗衣机如上所述，控制方法包括洗衣机在内桶静止时顶杆顶起封水装置，内桶与水位检测装置连通进行水位检测。
所述洗衣机的连通管路与水位检测装置连通的一端还与排水管路连接，所述连通管路设置有三通结构，分别连接水位检测装置和排水管路，所述排水管路设置有排水阀控制排水管路的通断，所述控制方法包括，当内桶静止需要对内桶中对水位进行检测时，在排水阀关闭的状态下，顶杆与连通管路向上移动顶开封水盖，使得内桶与水位检测装置密封连通，当需要排水时，开启排水阀，顶杆向上移动顶开封水盖。
所述洗衣机的顶杆与连通管路能够分别驱动，所述控制方法包括在内桶静止需要对内桶水位进行检测时，连通管路向上移动密封包围排水孔，顶杆向上移动顶开封水盖，令内桶中的水通过连通管路与水位检测装置连通进行水位检测，当需要排水时，顶杆向上移动顶开封水盖，内桶与集水装置连通进行排水。
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)洗涤过程中桶间无水，能够节省大量水资源，还能够避免桶间积存洗涤水滋生细菌，对衣物造成污染；
(2)内桶设置有常闭式封水装置，在没有其他部件干扰的情况下能够实现自密封，无需在集水装置上设置封堵排水孔的部件，内桶在洗涤过程中可进行转动，实现了洗涤过程的双动力；
(3)通过设置顶杆对常闭式封水装置顶起，实现排水及水位检测，结构简单易于实现，且水位检测通过与内桶连通直接检测，能够得到更准确的检测结果。
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是本发明洗衣机示意图；
图2是本发明图1中A处局部放大图；
图3是本发明水位检测的控制方法示意图；
图4是本发明排水的控制方法示意图；
图5是本发明水位检测的控制方法示意图；
图6是本发明排水的控制方法示意图。
图中：1、内桶；11、排水孔；2、集水装置；31、封水盖；32、复位弹簧；4、顶杆；5、连通管路；51、封水环；52、伸缩段；6、水位检测装置。
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”、“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所示，本发明涉及一种洗衣机，所述洗衣机包括内桶1和集水装置2，所述内桶1底部设置有排水孔11，所述内桶1的侧壁仅在顶部设置有一圈脱水孔，在脱水过程中，内桶转动将内桶1中的残留水通过上部的脱水孔脱出，水流入集水装置2中排出机体外。
现有技术中，在排水孔处设置有阀塞，阀塞设置在集水装置上，通过上下运动实现排水孔的开闭，阀塞在洗涤过程中止抵在排水孔处，因而在洗涤过程中，内桶不可转动。因而阀塞的设置方式限制了内桶的运动，因而本发明内桶的排水孔11处设置有封水装置，该封水装置为常闭状态，以保证内桶在进水洗涤时能够盛水且能够转动，为洗涤提供动力。
如图2所示，图2为图1中A处的局部放大图，能够更清楚地显示封水装置等结构，所述封水装置为机械结构，可以通过设置在集水装置2处的顶杆4顶开封水装置。
所述顶杆4如图2所示，下部设置有驱动装置能够驱动顶杆4进行上下方向的运动，在内桶1需要盛水时，顶杆4远离封水装置，令封水装置呈封闭状态，在需要开启封水装置时，顶杆4向上运动能够与封水装置止抵。
本发明的洗衣机还包括水位检测装置6，所述水位检测装置6设置有气室，所述气室与盛水容器底部连通，盛水容器中水压对气室中气体压缩，通过测气室中气体的压力，来得到相应的水位数据。
本发明的洗衣机还设置有连通管路5，在顶杆4顶开封水装置时，内桶1中的水可以通过连通管路5与水位检测装置6连通，从而实现对内桶1中水位的检测。
如图2所示，所述顶杆4设置在连通管路5的内部，设置在连通管路5内部可以在顶杆4顶开封水装置时，能够使得从排水孔11处的水直接进入连通管路5中，再与水位检测装置6连通。
所述连通管路一端连通水位检测装置6，即连通气室，另一端则为敞开式开口，用于在移动后将排水孔11包围，使得排水孔11中的水沿连通管路5流出，进入水位检测装置6。敞开式开口由于需要包围排水孔11，因而设置位置应当与排水孔11的位置对应，即连通管路5对准排水孔11位置，在排水孔11处设置的封水盖31开启后，连通管路5能够密封包围排水孔11，使得内桶1中的水不会漏入集水装置2中，而是流入连通管路5中进行水位的检 测。
由于连通管路5也进行上下移动，在封水装置密封状态下，连通管路5回缩不会影响内桶1的转动，连通管路5可以设置为硬质的管路，使得整个管路可以移动，还可以在靠近排水孔11的位置设置为可伸缩的管路，通过设置有伸缩段52，来实现对排水孔11的密封和脱离。当连通管路5向上移动时能够与内桶1的底部止抵，将排水孔11的位置全部包围，令内桶1中的水只沿连通管路5流动。
由于顶杆4与连通管路5在需要检测水位的时候都需要向上移动，因而连通管路5的一端可以与顶杆4固定连接，一体移动，但由于排水设置的不同，连通管路5与顶杆4还可以分体设置并分别驱动，以便于在顶杆4顶开封装置后内桶1中的水还可以排入集水装置2中。
如图2所示，所述连通管路5的开口处还设置有封水环51，所述封水环51可以为橡胶材质，所述封水环51的目的为在连通管路5与内桶1连通时，防止内桶1中的水通过连接处而漏出，进入集水装置2中，而造成水位检测的结果不准确。因而设置有封水环51，使得连通管路5止抵在内桶1底部时，形成密封结构，既能保证不漏水还能够保证检测结果的准确性。
封水环51的直径需要大于排水孔11的直径，如果封水环51及排水孔11不是圆形，则需要封水环51的尺寸需要能够将排水孔11全部包围在内部，以得到密封的效果。
另外，连通管路5与排水孔11连通的时机和顶杆4与封水装置接触开启的时机应当具有一定的时间差，即为应当向将连通管路5设置到位，保证产生密封的环境后，顶杆4再与封水装置接触，顶开封水装置，使得内桶1中的水进入连通管路5。优选地，所述封水环51的位置高于顶杆4的顶部，这样可以使封水环51先与内桶1接触，形成密封结构，由于橡胶以及管路均具有收缩性，封水环51与内桶1接触后，顶杆4仍能够向上运动顶开封水装置。
所述封水装置包括封水盖31，所述封水盖31如图2所示，顶部呈圆弧球面，便于在顶杆4顶起时，减小水对封水盖的作用力，封水盖31与排水孔11相匹配，并设置有密封圈等结构防止漏水。
如图2所示，封水盖31除具有封水面外，从封水盖31的下端延伸出顶起部，所述顶起部即为与顶杆4配合的位置，顶杆4对准顶起部即可将封水盖31整个顶起，使得封水盖31与内桶1分离，内桶1中的水从排水孔11流出。
所述封水装置由于是常闭式封水，因而还设置有复位弹簧32，当没有顶杆4等外部力的 作用时，封水装置在复位弹簧32的作用下为常闭状态，以保证内桶1底部的密封。
复位弹簧32安装在顶起部外周，复位弹簧32一端与封水盖31止抵，另一端止抵在一固定位置，并通过螺钉限位于一腔室内。
内桶底部一般设置有一个排水孔，该排水孔一般能够与集水装置连通，用于将内桶中的水通过集水装置排出机体外部。但由于本发明在内桶的排水孔11处设置了能够与水位检测装置6连通的连通管路5，因而内桶在排水时可以有两种实施方式。
实施例一
内桶的排水也流经连通管路进行排水。
所述连通管路5在与水位检测装置6的一端设置有三通结构，使得从连通管路5中的水既可以流入水位检测装置6中进行水位的检测，又可以流入排水管路中进行排水。通过设置阀门等结构对两者进行控制，以能够分别实现水位检测和排水的功能。
所述排水管路设置有排水阀，通过排水阀的通断即可实现上述功能。
上述设置方式的控制方法如图3及图4所示，图3为上述设置的情况下需要进行水位检测的控制方法，图4为上述设置的情况下需要进行排水的控制方法。
由于洗衣机的内桶1可以设置为在洗涤过程中进行转动，以实现双动力洗涤，因而在内桶1转动过程中，顶杆4与连通管路5不能与内桶1接触，以免阻碍内桶的转动，在内桶1在停止转动时，会停止在指定位置，该位置能够使封水装置与顶杆4和连通管路5对准，以实现开启和连通的目的。
如图3所示，在内桶1需要进行水位检测时，由于连通管路5同时与水位检测装置6和排水管路连通，因而需要判断排水阀是否关闭，否则内桶1中的水随排水管路流出而无法实现水位的检测。当排水阀为开启装置时，洗衣机控制排水阀关闭后，再进行后续操作。当排水阀为关闭状态时，顶杆4和连通管路5向上移动(可以同时移动，或分别驱动)，连通管路5上的封水环51与内桶1的底部止抵，实现密封包围排水孔11，在形成密封连接后，顶杆4继续向上移动，顶开封水盖31，此时内桶1中的水可从排水孔11流出，再通过连通管路5与水位检测装置6连通，内桶1中的水压对气室中的气体产生作用，通过气室内的气压来对内桶1中的水位进行反应，水位检测装置6将数据反馈给洗衣机，水位检测过程完成。
在本实施例中，顶杆4与连通管路5的驱动装置也可以分别进行驱动，以满足先进行密封排水孔11，再讲封水装置顶开的操作。
在内桶1需要排水时，需要保证排水管路的排水阀开启，顶杆4与连通管路5向上移动，连通管路5的封水环51与内桶1止抵包围排水孔11形成密封连接，然后顶杆4将封水装置顶起，使得内桶1与给排水管路联通，将内桶中的水排出。
上述设置方式可以使得排水过程，内桶中的水无需进入集水装置，避免了集水装置中具有残留洗涤水而滋生细菌而不利于清洁。
实施例二
顶杆与连通管路分别驱动，排水仍然通过集水装置进行排水。
所述顶杆4与连通管路5分别具有不同的作用，所述顶杆4用于将封水装置顶起，以实现内桶1与外部的连通，而连通管路5的作用在于将排水孔11包围以实现内桶1与水位检测装置6的连通实现水位检测。因而可以将顶杆4设置有第一驱动装置，连通管路5设置有第二驱动装置，两者可以分别驱动，当内桶1需要进行排水时，只驱动顶杆4，顶开封水装置，从而使得内桶1中的水流入集水装置2中，洗衣机再将集水装置2中的水排出实现排水，当需要对内桶1进行水位检测时，顶杆4与连通管路5均进行驱动，还可以先驱动连通管路5实现封闭，再驱动顶杆4开启封水装置使内桶1中的水通过密闭的流道进入水位检测装置6中。
上述设置的控制方法如图5及图6所示，图5为本实施例需要进行水位检测的控制方法，图6为本实施例需要进行排水的控制方法。
如图5所示，当内桶1需要进行水位检测时，顶杆4和连通管路5向上移动，连通管路5的封水环51与内桶1底部止抵并包围排水孔11，形成密封结构，顶杆4继续向上移动顶开封水盖31，将内桶1与连通管路5连通，内桶1中的水通过连通管路5流入水位检测装置6中，水位检测装置6测得水位数据后反馈给洗衣机，检测结束。
如图6所示，当内桶1需要进行排水时，仅顶杆4向上移动顶开封水盖31，此时内桶1与集水装置2实现连通，内桶1中的洗涤水进入集水装置2后通过集水装置2设置的排水管路进行排水。
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 (10)

  1. 一种洗衣机，包括内桶和集水装置，所述内桶在洗涤过程中用于盛水，所述内桶底部设置有排水孔，其特征在于：还包括水位检测装置，所述排水孔处设置有常闭封水装置，与封水装置对应的位置设置有可移动的顶杆，能够顶开封水装置使内桶与水位检测装置密封连通。
  2. 根据权利要求1所述的洗衣机，其特征在于：还包括与排水孔位置对应的连通管路，所述顶杆设置在连通管路内部，所述连通管路一端连通水位检测装置，另一端为朝向排水孔的敞开式开口。
  3. 根据权利要求2所述的洗衣机，其特征在于：所述连通管路为可伸缩管路/可移动管路，开口一端可以向上伸出与内桶底部止抵，所述连通管路开口一端与顶杆固定连接或分体设置。
  4. 根据权利要求2所述的洗衣机，其特征在于：所述连通管路的开口处设置有封水环，所述封水环的直径大于排水孔的直径；
    优选地，所述封水环位置高于所述顶杆顶部。
  5. 根据权利要求1所述的洗衣机，其特征在于：所述封水装置包括封水盖和复位弹簧，所述顶杆与封水盖接触并能够将封水盖顶起，所述复位弹簧在顶杆与封水盖脱离后令封水盖回位成关闭状态。
  6. 根据权利要求1-5任一项所述的洗衣机，其特征在于：所述洗衣机还设置有排水管路，所述连通管路与水位检测装置连通的一端还与排水管路连通；
    优选地，所述连通管路设置有三通结构，分别连接水位检测装置和排水管路，所述排水管路设置有排水阀控制排水管路的通断。
  7. 根据权利要求1-5任一项所述的洗衣机，其特征在于：所述顶杆具有第一驱动装置，所述连通管路开口端具有第二驱动装置，所述第一驱动装置与第二驱动装置可分别驱动。
  8. 一种洗衣机的控制方法，其特征在于：所述洗衣机包括内桶和集水装置，所述内桶在洗涤过程中用于盛水，所述内桶底部设置有排水孔，还包括水位检测装置，所述排水孔处设置有常闭封水装置，与封水装置对应的位置设置有可移动的顶杆，能够顶开封水装置使内桶与水位检测装置密封连通，所述控制方法包括洗衣机在内桶静止时顶杆顶起封水装置，内桶与水位检测装置连通进行水位检测。
  9. 根据权利要求8所述的洗衣机的控制方法，其特征在于：所述洗衣机的连通管路与水 位检测装置连通的一端还与排水管路连接，所述连通管路设置有三通结构，分别连接水位检测装置和排水管路，所述排水管路设置有排水阀控制排水管路的通断，所述控制方法包括，当内桶静止需要对内桶中对水位进行检测时，在排水阀关闭的状态下，顶杆与连通管路向上移动顶开封水盖，使得内桶与水位检测装置密封连通，当需要排水时，开启排水阀，顶杆向上移动顶开封水盖。
  10. 根据权利要求8所述的洗衣机的控制方法，其特征在于：所述洗衣机的顶杆与连通管路能够分别驱动，所述控制方法包括在内桶静止需要对内桶水位进行检测时，连通管路向上移动密封包围排水孔，顶杆向上移动顶开封水盖，令内桶中的水通过连通管路与水位检测装置连通进行检测，当需要排水时，顶杆向上移动顶开封水盖，内桶与集水装置连通进行排水。
PCT/CN2019/115233 2018-11-15 2019-11-04 一种洗衣机及其控制方法 WO2020098519A1 (zh)

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