WO2018202210A1 - 顶开式滚筒洗衣机及其定位装置 - Google Patents

顶开式滚筒洗衣机及其定位装置 Download PDF

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Publication number
WO2018202210A1
WO2018202210A1 PCT/CN2018/086750 CN2018086750W WO2018202210A1 WO 2018202210 A1 WO2018202210 A1 WO 2018202210A1 CN 2018086750 W CN2018086750 W CN 2018086750W WO 2018202210 A1 WO2018202210 A1 WO 2018202210A1
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WO
WIPO (PCT)
Prior art keywords
washing machine
locking
pulley
positioning device
drum washing
Prior art date
Application number
PCT/CN2018/086750
Other languages
English (en)
French (fr)
Inventor
于明亮
王开明
翟清明
牛艳娟
陈涛
王文文
Original Assignee
青岛海尔洗衣机有限公司
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
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 EP18794135.6A priority Critical patent/EP3620567B1/en
Priority to US16/610,199 priority patent/US20210087736A1/en
Publication of WO2018202210A1 publication Critical patent/WO2018202210A1/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
    • D06F37/30—Driving arrangements 
    • D06F37/302—Automatic drum positioning
    • 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
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/02—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis
    • D06F23/025—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis with a rotatable imperforate tub
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/04—Signal transfer or data transmission 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • 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
    • D06F37/30—Driving 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/24—Spin speed; Drum movements
    • 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
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/02—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis

Definitions

  • the invention belongs to the field of laundry washing equipment, and particularly provides a top-opening drum washing machine and a positioning device thereof.
  • the commonly used drum washing machines are all side-opening type, but when the side-opening type washing machine is used, the user needs to bend or squat down to put the laundry from the side door of the washing machine into the drum or take out the clothes in the drum, thereby affecting the user (especially For the elderly) experience.
  • a top-opening drum type washing machine (such as the drum washing machine disclosed in the patent application filed in the publication No. CN1244730C) is used.
  • the drum is also provided with a drum door in the circumferential direction, and the drum is locked by the drum locking device when the washing machine stops rotating and the drum door corresponds to the top opening door of the washing machine.
  • the locking of the drum by the drum locking device is achieved by inserting the locking bolt of the drum locking device into the groove of the pulley.
  • the groove corresponding to the bolt is usually disposed on the rim of the pulley, and the edge of the groove of the groove causes a certain degree of wear on the belt during the operation of the washing machine, at the edge of the groove.
  • the belt may even be cut, which reduces the service life of the belt and increases the failure rate of the washing machine.
  • the present invention provides a top open roller.
  • a positioning device for a washing machine comprising an outer cylinder, an inner cylinder disposed in the outer cylinder, and a pulley connected to the inner cylinder, the positioning device comprising: a locking provided on a spoke of the pulley a locking device disposed on the outer cylinder, the locking device including a lock body and a locking tongue; a position of the locking device corresponding to a rotation path of the locking position to stop rotation in the inner cylinder
  • the locking tongue can form a latching engagement with the locking position.
  • the locking position is a groove provided on the spoke.
  • the locking tongue is a rocker type locking tongue whose one end is connected to the lock body.
  • the positioning device further comprises detecting means for detecting the rotational position of the inner cylinder.
  • the detecting device comprises a signal transmitting device and a signal receiving device, the signal transmitting device is disposed on the pulley, and the signal receiving device is disposed in the outer cylinder or the washing machine On the body.
  • the signal transmitting device is arranged on the rim of the pulley.
  • the detecting device includes a signal transmitting device and a signal receiving device, and the signal transmitting device is disposed on the outer cylinder or the body of the washing machine, and the signal receiving device is disposed at the On the pulley.
  • the signal transmitting device is a magnet and the signal receiving device is a Hall element.
  • the present invention provides a top-opening drum washing machine, the top-opening drum washing machine comprising the positioning device according to any one of the above aspects.
  • the locking position corresponding to the locking device is disposed on the rim of the pulley, and the present invention sets the locking position corresponding to the locking device on the spoke of the pulley, so that the locking can be changed by changing
  • the position in the length direction of the spokes allows the locking means fixed to the outer cylinder to have more positional choices along the length of the spoke.
  • the pulley has a plurality of spokes, as long as the drum door of the inner cylinder can be made to correspond to the position of the washing machine door, the locking device can be disposed at any projection position of each spoke on the outer cylinder.
  • the locking device is in the slanting piece by providing the locking tongue of the locking device in a slanting structure and having the slat type locking tongue have a small thickness in the axial direction of the pulley.
  • the lock tongue has a smaller thickness in the direction of the axis of the pulley when it is received into the lock body. Therefore, when the blade lock tongue is received into the lock body, the locking device fixed to the outer cylinder does not come into contact with the rotating pulley, and the structure is very compact.
  • Figure 1 is a schematic view of a pulley portion of a top-opening drum washing machine in an embodiment of the present invention
  • Figure 2 is a side elevational view of the pulley portion of Figure 1 of the present invention.
  • the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed connections, for example, or It is a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the top-opening drum washing machine of the present invention mainly includes an outer cylinder, an inner cylinder, a positioning device, a pulley, and a motor that drives the pulley to rotate.
  • the inner cylinder is disposed in the outer cylinder, and one end of the inner cylinder is coaxially fixed with the pulley, and the motor rotates through the belt driving pulley.
  • the washing machine door of the drum washing machine of the present invention is disposed at the top of the drum washing machine, and the inner cylinder is provided with a side opening type drum door corresponding to the washing machine door.
  • the positioning device locks the inner cylinder, and the user can put the laundry into the inner cylinder through the washing machine door or the drum door, or take out the laundry from the inner cylinder.
  • the positioning device of the present invention includes a locking device 1 and a detecting device.
  • the locking device 1 consists essentially of a lock body 11 and a locking tongue 12.
  • the lock body 11 is fixed to the outer cylinder, and the lock tongue 12 can abut against the pulley 2 when it protrudes from the lock body 11.
  • the spokes 21 of the pulley 2 are provided with a latching position (not shown) capable of accommodating the bolt 12.
  • the locking tongue 12 is a rocker type locking tongue having a sheet-like structure, and when the locking tongue 12 is received in the locking body 1, the thickness direction of the locking tongue 12 is The axes of the pulleys 2 are parallel or nearly parallel.
  • One end of the locking tongue 12 is pivotally connected to the lock body 11, and the other end of the locking tongue 12 can be screwed out of the lock body 11 or screwed into the lock body 11 around the pivotal joint of the lock tongue 12 and the lock body 11.
  • the driving means for driving the rotation of the locking tongue 12 may be a micro motor provided in the lock body 11.
  • the micromotor is connected to the pivot end of the bolt 12, and when the micromotor rotates, the bolt 12 can be rotated by the gear or the belt to drive the bolt 12 out of the lock body 11 or rotate.
  • a cam is fixed on the output shaft of the micro motor, and the micro motor can eject the free end of the bolt 12 through the cam, and the free end of the bolt 12 needs to be retracted to
  • the micro motor drives the cam to rotate to the original position, and the lock tongue 12 is pulled into the lock body 11 by a spring provided in the lock body 12.
  • the free end of the bolt 12 can be rotated out of the lock body 11 or into the lock body 11 by other feasible driving methods such as a solenoid valve.
  • the bolt 12 (curved tongue) of the above structure enables the lock body 11 to have a thinner structure. Therefore, when the locking device 1 is fixed to the outer cylinder and the locking tongue 12 is received in the lock body 1, no part of the locking device 1 comes into contact with the pulley 2. Therefore, the locking device 1 of the present invention can make full use of the space between the pulley 2 and the outer tub.
  • the latching position is a recess provided in the spoke 21 of the pulley 2 to prevent the latching tongue 12 from extending too long and the free end of the latching tongue 12 to eject the spokes 21 of the pulley 2.
  • the person skilled in the art can also set the locking position as a through hole on the spoke 21 of the pulley 2 as needed.
  • the detecting device is for monitoring the position of the drum door.
  • the detecting device mainly comprises a magnet 3 as a signal transmitting device and a Hall element 4 as a signal receiving device.
  • the magnet 3 is disposed on the pulley 2
  • the Hall element 4 is disposed on the outer cylinder.
  • the magnet 3 is disposed on the rim 22 of the pulley 2, and the position of the Hall element 4 on the outer cylinder corresponds to the rotational path of the magnet 3 so that the Hall element 4 can clearly receive the signal of the magnet 3.
  • the rotation path of the magnet 3 is a circular path in which the magnet 3 rotates one round around the axis of the pulley 2, and the Hall element 4 is located on the circular path, so that the magnet 3 is always rotated during one rotation. A position is reached that is aligned with the Hall element 4.
  • the magnet 3 can be replaced by any other form of magnet, such as an electromagnetic coil.
  • the person skilled in the art can also place the magnet 3 at other positions on the pulley 2, such as the spokes 21, as needed.
  • the person skilled in the art can also arrange the Hall element 4 on the pulley 2, the magnet 3 on the outer cylinder, and the magnet 3 to correspond to the rotation path of the Hall element 4.
  • the rotation path of the Hall element 4 is a circular path in which the Hall element 4 is rotated one revolution around the axis of the pulley 2, and the magnet 3 is located on the circular path, and therefore, during the rotation of the Hall element 4 It will always reach a position aligned with the magnet 3.
  • the detecting device may be a combination of the illuminating member and the photosensitive sensor, an angle sensor disposed on the pulley 2, or disposed on the pulley 2 or outside.
  • the top-opening drum type washing machine of the present invention further includes a washing machine controller and a motor controller, which are in communication connection with the motor controller and the Hall element 4, respectively.
  • the washing machine controller can send an instruction to the motor controller, and after the motor controller receives the command, the motor controller can control the motor drive pulley 2 to rotate.
  • the washing machine controller sends an instruction to the motor controller, according to which the motor controller reduces the rotational speed of the motor connected to the pulley 2 and maintains the low-speed operation.
  • the Hall element 4 detects the magnet 3
  • the Hall element 4 sends a signal to the washing machine controller, and the washing machine controller issues an instruction to the motor controller based on the signal, and the motor controller stops the motor from rotating.
  • the washing machine controller controls the locking device 1 to cause the free end of the bolt 12 to snap into the groove on the spoke 21 of the pulley 2.
  • the inner cylinder is locked, at which time the positions of the washing machine door and the drum door coincide or nearly coincide.
  • the locking device 1 is disposed on the outer cylinder at a position corresponding to the rotational path of the groove by providing a groove on the spoke 21 of the pulley 2 Therefore, the pulley 2 can block the locking device 1, thereby making the structure of the washing machine more compact.
  • the rotation path of the groove is a circular path in which the groove rotates around the axis of the pulley 2, and the locking device 1 is located on the circular path, so that the groove will always arrive during one rotation of the groove. A position aligned with the locking device 1 to enable the locking tongue 12 to be inserted into the recess.
  • the present invention provides a solution in which the groove corresponding to the bolt 12 of the locking device 1 is disposed on the spoke 21 of the pulley 2, and the prior art is disposed on the rim 22 of the pulley 2 with respect to the prior art.
  • the groove of the groove is prevented from coming into contact with the belt on the pulley 2, thereby causing the belt to be worn.
  • the locking position corresponding to the locking device 1 is disposed on the rim 22 of the pulley 2, and the present invention sets the locking position corresponding to the locking device 1 on the spokes 21 of the pulley 2, It is therefore possible to make the locking device 1 fixed to the outer cylinder more positional in the longitudinal direction of the spoke 21 by changing the position of the locking position in the longitudinal direction of the spoke 21.
  • the pulley 2 has a plurality of spokes 21, the locking device 1 can be disposed at any projection position of each spoke 21 on the outer cylinder as long as the position of the drum door of the inner cylinder can be made to correspond to the position of the washing machine door, further improving The optional position of the locking device 1 on the outer cylinder is fixed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

一种顶开式滚筒洗衣机及其定位装置，属于衣物清洗设备领域，旨在解决现有技术中皮带轮上与滚筒锁定装置的锁舌相对应的凹槽边缘容易磨损皮带以及锁定装置的位置布局不够灵活的问题。为此目的，所述的用于顶开式滚筒洗衣机的定位装置包括：设置在皮带轮（2）的轮辐（21）上的卡止位；设置在外筒上的锁定装置（1），所述锁定装置（1）具有锁舌（12）；所述锁定装置（1）的位置与所述卡止位的旋转路径相对应，以便在滚筒停止转动时，所述锁舌（12）能够与所述卡止位形成卡锁配合。由于具有上述结构，本方案能够避免皮带轮（2）上的皮带与卡止位的端口接触，从而避免皮带磨损，增加皮带的使用寿命，同时使锁定装置（1）的位置选择具有很大的灵活性。

Description

顶开式滚筒洗衣机及其定位装置 技术领域
本发明属于衣物清洗设备领域，具体提供一种顶开式滚筒洗衣机及其定位装置。
背景技术
目前常用的滚筒洗衣机都是侧开门式，但是该侧开门式洗衣机在使用时，需要用户弯腰或蹲下从洗衣机的侧门向滚筒内投放衣物或者将滚筒内的衣物取出，影响用户(尤其是对于老人)的使用体验。
为此，顶开门式滚筒洗衣机(如公开号为CN1244730C的专利申请文件中公开的滚筒洗衣机)应用而生。与洗衣机的顶开门相对应的，滚筒的周向也设置有滚筒门，在洗衣机停止转动且滚筒门与洗衣机的顶开门相对应时，通过滚筒锁定装置对滚筒进行锁定。具体地，通过将滚筒锁定装置的锁舌插进皮带轮的凹槽内，实现滚筒锁定装置对滚筒的锁定
但是，在现有的技术中与锁舌相对应的凹槽通常被设置在皮带轮的轮缘上，在洗衣机工作过程中凹槽的槽口边缘会对皮带造成一定程度的磨损，在凹槽边缘毛刺尖锐时甚至会割伤皮带，降低了皮带的使用寿命，增加了洗衣机的故障率。
相应地，本领域需要一种新的顶开式滚筒洗衣机来解决上述问题。
发明内容
为了解决现有技术中的上述问题，即为了解决现有技术中皮带轮上与滚筒锁定装置的锁舌相对应的凹槽边缘容易磨损皮带的问题，本发明提供了一种用于顶开式滚筒洗衣机的定位装置，所述洗衣机包括外筒、设置于所述外筒内的内筒和与所述内筒相连接的皮带轮，所述定位装置包括：设置在所述皮带轮的轮辐上的卡止位；设置在所述外筒上的锁定装置，所述锁定装置包括锁体和锁舌；所述锁定装置的位置与所 述卡止位的旋转路径相对应，以便在所述内筒停止转动时，所述锁舌能够与所述卡止位形成卡锁配合。
在上述定位装置的优选技术方案中，所述卡止位是设置在所述轮辐上的凹槽。
在上述定位装置的优选技术方案中，所述锁舌是一端与所述锁体相连的翘片式锁舌。
在上述定位装置的优选技术方案中，所述定位装置还包括用于检测内筒转动位置的检测装置。
在上述定位装置的优选技术方案中，所述检测装置包括信号发送装置和信号接收装置，所述信号发送装置设置在所述皮带轮上，所述信号接收装置设置在所述外筒或所述洗衣机的机体上。
在上述定位装置的优选技术方案中，所述信号发送装置设置在所述皮带轮的轮缘上。
在上述定位装置的优选技术方案中，所述检测装置包括信号发送装置和信号接收装置，所述信号发送装置设置在所述外筒或所述洗衣机的机体上，所述信号接收装置设置在所述皮带轮上。
在上述定位装置的优选技术方案中，所述信号发送装置是磁体，所述信号接收装置是霍尔元件。
在另一方面，本发明提供了一种顶开式滚筒洗衣机，所述顶开式滚筒洗衣机包括上述技术方案中任一项所述的定位装置。
本领域技术人员能够理解的是，在本发明的优选技术方案中，通过将与锁定装置对应的卡止位设置在皮带轮的轮辐上，能够避免皮带轮上的皮带与卡止位的端口接触，从而避免了皮带的磨损，增加了皮带的使用寿命。
进一步，不同于现有技术中将与锁定装置对应的卡止位设置在皮带轮的轮缘上，本发明将与锁定装置对应的卡止位设置在皮带轮的轮辐上，因此，能够通过改变卡止位在轮辐长度方向上的位置，使固定到外筒上的锁定装置沿轮辐长度方向具有更多的位置选择。并且，由于皮带轮具有多根轮辐，只要能使内筒的滚筒门与洗衣机门的位置相对应，锁定装置能够被设置在每根轮辐在外筒上的任意投影位置。
更进一步，由于皮带轮与外筒之间的间隙非常小，所以现有技术中的锁栓装置不能被安装到皮带轮与外筒之间。然而，在本发明的 优选技术方案中，通过将锁定装置的锁舌设置成翘片式结构，并使该翘片式锁舌沿皮带轮的轴线方向具有较小的厚度，使得锁定装置在翘片式锁舌被收入到锁体内时沿皮带轮的轴线方向具有较小的厚度。因此，在翘片式锁舌被收入到锁体内时，固定到外筒上的锁定装置不会与转动的皮带轮发生接触，结构非常紧凑。
附图说明
图1是本发明实施例中顶开式滚筒洗衣机的皮带轮部分的示意图；
图2是本发明图1中皮带轮部分的侧视图。
附图标记列表：
1、锁定装置；11、锁体；12、锁舌；2、皮带轮；21、轮缘；22、轮辐；3、磁铁；4、霍尔元件。
具体实施方式
下面参照附图来描述本发明的优选实施方式。本领域技术人员应当理解的是，这些实施方式仅仅用于解释本发明的技术原理，并非用于限制本发明的保护范围。例如，虽然附图中的各部件之间是按一定比例关系绘制的，但是这种比例关系并非一成不变，本领域技术人员可以根据需要对其作出调整，以便适应具体的应用场合，调整后的技术方案仍将落入本发明的保护范围。
需要说明的是，在本发明的描述中，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述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。
此外，还需要说明的是，在本发明的描述中，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，可以是两个元件内部的连通。对于本领域技术人员而言，可根据具体情况理解上述术语在本发明中的具体含义。
进一步，需要说明的是，虽然图中未示出，但是本发明的顶开式滚筒洗衣机主要包括：外筒、内筒、定位装置、皮带轮和驱动该皮带轮转动的电机。其中，内筒设置在外筒内，且内筒的一端与皮带轮同轴固定，电机通过皮带驱动皮带轮旋转。此外，本发明滚筒洗衣机的洗衣机门设置在滚筒洗衣机的顶部，与该洗衣机门相对应的，内筒上设置有侧开式的滚筒门。在内筒停止转动且滚筒门朝上时，定位装置将内筒锁定，用户能够通过洗衣机门、滚筒门向内筒内投放衣服，或从内筒内将衣物取出。
如图1和图2所示，本发明的定位装置包括锁定装置1和检测装置。该锁定装置1主要由锁体11和锁舌12组成。锁体11固定到外筒上，锁舌12在从锁体11内伸出时能够与皮带轮2相抵。优选地，皮带轮2的轮辐21上设置有能够容纳该锁舌12的卡止位(图中未示出)。在锁舌12从锁体11内伸出后，锁舌12的一端能够卡入该卡止位内，进而锁定装置1能够通过锁舌12将皮带轮2进行锁定，从而与皮带轮2同轴固定的内筒被锁定。
如图2所示，在本发明的优选技术方案中，锁舌12是具有片状结构的翘片式锁舌，并且在锁舌12被收入锁体1中时，锁舌12的厚度方向与皮带轮2的轴线平行或接近平行。锁舌12的一端与锁体11枢转连接，锁舌12的另一端能够绕锁舌12和锁体11的枢转连接处旋出锁体11或被旋入锁体11中。进一步，驱动锁舌12转动的驱动装置可以是设置在锁体11内的微型电机。在一种可行的实施例中，该微型电机与锁舌12的枢转端连接，当微型电机旋转时能够通过齿轮或者皮带驱动锁舌12旋转，进而使锁舌12转出锁体11或转入锁体11中。在另一种可行的实施例中，该微型电机的输出轴上固定有凸轮，该微型电机能够通过该凸轮将锁舌12的自由端顶出，在锁舌12的自由端需要被缩回至锁体12内时，微型电机驱动凸轮旋转至原来的位置，并且通过设置在锁体12内的弹簧将锁舌12拉入锁体11中。此外，本领域技术人员还可以通过电磁阀等其他可行的驱动方式使锁舌12的自由端转出锁体11或转入锁体11中。
本领域技术人员能够理解的是，上述结构的锁舌12(翘片式锁舌)能够使锁体11也具有较薄的结构。因此在锁定装置1被固定到外筒上且锁舌12被收入锁体1内时，锁定装置1的任何部位都不会与皮 带轮2发生接触。所以，本发明的锁定装置1能够充分利用皮带轮2和外桶之间的空间。
在本发明的优选实施方案中，该卡止位是设置在皮带轮2的轮辐21上凹槽，用以防止锁舌12伸出过长，锁舌12的自由端顶出皮带轮2的轮辐21。或者本领域技术人员还可以根据需要，将该卡止位设置为皮带轮2的轮辐21上的通孔。
如图1所示，检测装置用于监测滚筒门的位置，该检测装置主要包括作为信号发送装置的磁铁3和作为信号接收装置的霍尔元件4，优选地，磁铁3设置在皮带轮2上，霍尔元件4设置在外筒上。进一步优选地，磁铁3设置在皮带轮2的轮缘22上，霍尔元件4在外筒上的位置与磁铁3的旋转路径相对应，以便霍尔元件4能够清晰地接收磁铁3的信号。需要说明的是，磁铁3的旋转路径是磁铁3绕皮带轮2轴心旋转一圈的圆形路径，霍尔元件4位于该圆形路径上，因此，在磁铁3旋转一圈的过程中总会到达与霍尔元件4对准的一个位置。并且，磁铁3还可以被其他任何形式磁体替代，例如电磁线圈。
此外，本领域技术人员还可以根据需要，将磁铁3设置在皮带轮2上的其它位置，如轮辐21上。或者本领域技术人员还可以根据需要，将霍尔元件4设置在皮带轮2上，将磁铁3设置在外筒上，并且使磁铁3与霍尔元件4的旋转路径相对应。类似地，霍尔元件4的旋转路径是霍尔元件4绕皮带轮2轴心旋转一圈的圆形路径，磁铁3位于该圆形路径上，因此，在霍尔元件4旋转一圈的过程中总会到达与磁铁3对准的一个位置。
本领域技术人员能够理解的是，检测装置除了磁铁3和霍尔元件4的组合外，还可以是发光件与光敏传感器的组合、设置在皮带轮2上的角度传感器、设置在皮带轮2上或外筒的接近开关等。
此外，虽然附图中并未示出，但是本发明的顶开式滚筒洗衣机还包括洗衣机控制器和电机控制器，该洗衣机控制器分别与电机控制器、霍尔元件4通信连接。洗衣机控制器能够向电机控制器发送指令，在电机控制器接收到指令后，电机控制器能够控制电机驱动皮带轮2转动。
下面结合图1和图2来对本发明的顶开式滚筒洗衣机内筒的锁定过程进行详细说明。
当顶开式滚筒洗衣机的内筒静止时，锁定装置1的锁舌12的自由端卡入皮带轮2的轮辐21上的凹槽内，洗衣机门和滚筒门的位置重合或接近重合，以便用户能通过洗衣机门和滚筒门向洗衣机内投放衣物，或从内筒洗衣机将衣物取出。
当顶开式滚筒洗衣机完成脱水程序时，洗衣机控制器向电机控制器发送指令，电机控制器根据该指令使与皮带轮2相连的电机的转速降低并保持低速运行。当霍尔元件4检测到磁铁3时，霍尔元件4发送信号给洗衣机控制器，洗衣机控制器根据该信号向电机控制器下达指令，电机控制器使电机停止转动。在洗衣机控制器向电机控制器下达电机停止转动指令的同时或之后(例如延时0.5S)，洗衣机控制器控制锁定装置1使锁舌12的自由端卡入皮带轮2的轮辐21上的凹槽内。内筒被锁定，此时洗衣机门和滚筒门的位置重合或接近重合。
本领域技术人员能够理解的是，在本发明的优选技术方案中，通过在皮带轮2的轮辐21上设置凹槽，将锁定装置1设置在外筒上与该凹槽的旋转路径相对应的位置处，使得皮带轮2能够对锁定装置1进行遮挡，进而使洗衣机的结构更加紧凑。需要说明的是，凹槽的旋转路径是凹槽绕皮带轮2轴心旋转一圈的圆形路径，锁定装置1位于该圆形路径上，因此，在凹槽旋转一圈的过程中总会到达与锁定装置1对准的一个位置，从而使锁舌12能够插入凹槽中。
进一步，本发明将与锁定装置1的锁舌12对应的凹槽设置在皮带轮2的轮辐21上的技术方案，相对于现有技术将凹槽设置在皮带轮2的轮缘22上的技术方案而言，避免了凹槽的槽口与皮带轮2上的皮带发生接触进而导致皮带被磨损的现象。
更进一步，不同于现有技术中将与锁定装置1对应的卡止位设置在皮带轮2的轮缘22上，本发明将与锁定装置1对应的卡止位设置在皮带轮2的轮辐21上，因此能够通过改变卡止位在轮辐21长度方向上的位置，使固定到外筒上的锁定装置1沿轮辐21的长度方向具有更多的位置选择。并且，由于皮带轮2具有多根轮辐21，所以，只要能使内筒的滚筒门和洗衣机门的位置相对应，锁定装置1能够被设置在每根轮辐21在外筒上的任意投影位置，进一步提高了锁定装置1在外筒上固定位置的可选性。
至此，已经结合附图所示的优选实施方式描述了本发明的技术方案，但是，本领域技术人员容易理解的是，本发明的保护范围显然不局限于这些具体实施方式。在不偏离本发明的原理的前提下，本领域技术人员可以对相关技术特征作出等同的更改或替换，这些更改或替换之后的技术方案都将落入本发明的保护范围之内。

Claims (9)

  1. 一种用于顶开式滚筒洗衣机的定位装置，所述洗衣机包括外筒、设置于所述外筒内的内筒和与所述内筒相连接的皮带轮，其特征在于，所述定位装置包括：
    设置在所述皮带轮的轮辐上的卡止位；
    设置在所述外筒上的锁定装置，所述锁定装置包括锁体和锁舌；
    所述锁定装置的位置与所述卡止位的旋转路径相对应，以便在所述内筒停止转动时，所述锁舌能够与所述卡止位形成卡锁配合。
  2. 根据权利要求1所述的用于顶开式滚筒洗衣机的定位装置，其特征在于，所述卡止位是设置在所述轮辐上的凹槽。
  3. 根据权利要求2所述的用于顶开式滚筒洗衣机的定位装置，其特征在于，所述锁舌是一端与所述锁体相连的翘片式锁舌。
  4. 根据权利要求1至3中任一项所述的用于顶开式滚筒洗衣机的定位装置，其特征在于，所述定位装置还包括用于检测内筒转动位置的检测装置。
  5. 根据权利要求4所述的用于顶开式滚筒洗衣机的定位装置，其特征在于，所述检测装置包括信号发送装置和信号接收装置，所述信号发送装置设置在所述皮带轮上，所述信号接收装置设置在所述外筒或所述洗衣机的机体上。
  6. 根据权利要求5所述的用于顶开式滚筒洗衣机的定位装置，其特征在于，所述信号发送装置设置在所述皮带轮的轮缘上。
  7. 根据权利要求4所述的用于顶开式滚筒洗衣机的定位装置，其特征在于，所述检测装置包括信号发送装置和信号接收装置，所述信号发送装置设置在所述外筒或所述洗衣机的机体上，所述信号接收装置设置在所述皮带轮上。
  8. 根据权利要求5所述的用于顶开式滚筒洗衣机的定位装置，其特征在于，所述信号发送装置是磁体，所述信号接收装置是霍尔元件。
  9. 一种顶开式滚筒洗衣机，其特征在于，所述顶开式滚筒洗衣机包括权利要求1至9中任一项所述的定位装置。
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