WO2013067739A1 - 洗衣机排水泵装置及其洗衣机 - Google Patents

洗衣机排水泵装置及其洗衣机 Download PDF

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Publication number
WO2013067739A1
WO2013067739A1 PCT/CN2011/084821 CN2011084821W WO2013067739A1 WO 2013067739 A1 WO2013067739 A1 WO 2013067739A1 CN 2011084821 W CN2011084821 W CN 2011084821W WO 2013067739 A1 WO2013067739 A1 WO 2013067739A1
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WO
WIPO (PCT)
Prior art keywords
pump chamber
water
washing machine
filter
pump device
Prior art date
Application number
PCT/CN2011/084821
Other languages
English (en)
French (fr)
Inventor
梁海山
吕佩师
许升
李海涛
Original Assignee
海尔集团公司
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 海尔集团公司, 青岛海尔洗衣机有限公司 filed Critical 海尔集团公司
Priority to KR1020147011889A priority Critical patent/KR101748473B1/ko
Priority to US14/355,294 priority patent/US9683572B2/en
Priority to JP2014540290A priority patent/JP5915914B2/ja
Priority to EP11875490.2A priority patent/EP2778272B1/en
Publication of WO2013067739A1 publication Critical patent/WO2013067739A1/zh

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Classifications

    • 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
    • D06F39/085—Arrangements or adaptations of pumps
    • 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 
    • D06F39/10—Filtering arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/02—Multi-stage pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
    • F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps

Definitions

  • the present invention relates to a washing machine, and more particularly to a washing machine using a drain pump device and a low noise drain pump device of the washing machine.
  • Household electric washing machines are divided into pulsator washing machines, drum washing machines, and mixing washing machines.
  • the drum washing machines were first used in Europe. With the changes in people's consumption levels and concepts, drum washing machines are more and more accepted by Asians.
  • Household appliance noise has also become one of the important issues solved by various home appliance manufacturers, among which the quietness index of washing machines is constantly improving.
  • the drum washing machine adopts the upper drainage mode, and the water in the cylinder is discharged outside the machine through the drain pump device and the drain pipe.
  • the circulating noise of the drain pump unit caused by the water flow in the water pipe during the drainage cannot be completely solved.
  • the drain pump device has a head of about 1.2 meters, the water in the water pipe cannot be discharged, but under the action of gravity, the impeller of the drain pump device is continuously impacted downward, and The impeller is thrown out, which causes a "squeaky” noise.
  • Water level switch devices are used in the existing low-end washing machines. The drain pump device can only work continuously during the entire drying process, even on high-end washing machines.
  • the water level sensor can determine the minimum water level at low water level and stop the drain pump device.
  • the signal of the sensor is usually disturbed and drifted, which is easy to be misjudged.
  • the result is still noisy, or the drainage is not clean enough to meet the user's low noise demand.
  • the Chinese patent application CN200920230820. 4 discloses a low-noise pump casing of a washing machine drain pump device, which mainly comprises an explosion-proof hole on the inner wall end surface of the pump between the pump chamber and the filter chamber near the water outlet of the pump casing,
  • the explosion-proof port is lower than the outlet pipe, that is, a water-gas mixture is still formed in the pump chamber, and the noise generated by the impact impeller when the water in the drain pipe is recirculated cannot be completely solved.
  • the present invention has been made in view of the above.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and to provide a washing machine drain pump device capable of reducing noise.
  • Another object of the present invention is to provide a washing machine having the drain pump device.
  • the basic idea of adopting the technical solution of the present invention is: a washing machine drain pump device, including a drain motor, a pump casing, a water-leaf blade, a filter, and a water inlet port and a water outlet port on the pump casing
  • the inside of the pump casing includes the front pump chamber and the rear pump chamber in the order of the inlet and outlet water, and the water-removing water is disposed in the rear pump chamber, and is coaxially installed with the rotating shaft of the drainage motor, and the filter is disposed in front In the pump chamber, the filter outlet of the filter is integrally provided with a pressure relief plate with a pressure relief hole on one side of the water-spraying leaf.
  • the outlet pipe is disposed on the pump casing of the rear pump chamber along the water-removing blade, and the inlet pipe is disposed on the pump casing of the front pump chamber perpendicular to the axial direction of the front pump chamber.
  • the front end of the front pump chamber communicates with the rear pump chamber, and the other end is an open port through which the filter is installed in the front pump chamber, and the open port is closed by installing the end cover.
  • the mounting end cover and the filter are of a unitary structure, the mounting end cover and the filter are relatively rotatable, and the mounting end cover is threadedly sealed with the front pump chamber.
  • the filter is a frame structure of a column, one end is a support plate, the other end is the filter outlet, and the support plate and the filter outlet are connected by a support piece, and the filter outlet is a hollow cylinder structure, a hollow cylinder
  • the pressure release plate is integrally provided coaxially with one end of the water transfer blade.
  • the pressure relief plate has a ring structure, and the inner diameter of the ring is the same as the inner diameter of the filter outlet, and is smaller than the outer diameter of the water-leaf blade, and the pressure relief hole is evenly arranged on the ring.
  • the outer diameter of the filter outlet is smaller than the diameter of the support plate, and the support piece has an L-shaped structure.
  • the length of the hollow cylinder is smaller than the distance between the support plate and the pressure release plate.
  • the length of the hollow cylinder does not completely block the inlet pipe. Inlet path.
  • the support piece is provided with a positioning protrusion corresponding to one side of the inner wall of the front pump chamber, and the inner wall of the front pump chamber is provided with a positioning chute corresponding to the positioning protrusion in the axial direction of the front pump chamber from the opening port, the positioning The chute is not in the same axial line as the inlet port.
  • the support sheets are 2-4 sets, preferably 2 sets.
  • the washing machine of the present invention comprises a water inlet system and a drainage system including a drain pump device.
  • the drain pump device comprises a drain motor, a pump casing, a water-leaf blade, a filter, and a water inlet port and a water outlet port on the pump casing.
  • the sequence of the effluent includes a front pump chamber and a rear pump chamber, wherein the water-removing water is disposed in the rear pump chamber, coaxially mounted with the rotating shaft of the drain motor, and the filter is disposed in the front pump chamber,
  • the filter outlet of the filter is integrally provided with a pressure relief plate with a pressure relief hole on one side of the water transfer blade.
  • Pressure relief plate for pressure relief holes for pressure relief holes.
  • the drain pump when the drain pump drains the water, the drain pump does not stop working because the water in the clothes is continuously sucked out in the subsequent dehydration process; Under the action of gravity, the water impacts the air in the pump chamber with a large impact force, because the air in the pump chamber can be discharged through the pressure relief hole, thereby avoiding the "boom-boom" noise generated when the washing machine is dried.
  • the improved structure of the invention is simple and reliable, realizes low-cost noise reduction effect, has low failure rate, solves the problem of noise annoyed consumers in the laundry process, and is more humanized.
  • FIG. 1 is a schematic view of a drainage device according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the pressure release plate of Figure 1;
  • Figure 3 is a cross-sectional view of the filter of Figure 3;
  • Figure 4 is a D-D view of Figure 3;
  • the drawings are marked as follows: 1. Pump casing, 2. Inlet pipe, 3. Pressure relief plate, 31. Pressure relief hole, 4. Water blade, 5. Drain motor, 6. Outlet pipe, 7. Positioning convex Block, 8. Filter, 81. Support, 82. Filter outlet, 83. Mounting end cap, 84. Support plate, 9. Open port, 91. Rear pump chamber, 92. Front pump chamber, 93. Reinforced concrete embodiment
  • the washing machine of the present invention comprises a water inlet system and a drainage system including a drain pump device.
  • the washing machine drain pump device comprises a pump casing 1, and the inside of the pump casing 1 includes the same in the order of water inlet and outlet.
  • the front pump chamber 92 and the rear pump chamber 91 that is, the right pump chamber and the left pump chamber shown in the drawing, and the annular rib 93 are provided between the front pump chamber 92 and the rear pump chamber 91.
  • the water-spraying blade 4 is disposed in the rear pump chamber 91, and is coaxially mounted with the rotating shaft of the drain motor 5, and the filter 8 is disposed in front of the In the pump chamber 92, the water outlet port 6 is radially disposed on the pump casing of the rear pump chamber 91 along the water-repellent vane 4, and the inlet port 2 is disposed in the axial direction perpendicular to the front pump chamber 92.
  • the pump chamber is on the pump casing; the front pump chamber 92 is connected to the rear pump chamber 91, and the other end is an open port 9, through which the filter 8 is mounted in the front pump chamber 92, the open port 9 It is closed by installing the end cap 83.
  • the mounting end cap 83 is a separate detachable individual mechanism mounted on the opening 9.
  • the mounting end cap 83 is connected to the filter 8 as a unitary structure, and the mounting end cap 83 and the filter 8 are relatively rotatable.
  • the mounting end cap is threadedly sealed with the open port 9 of the 83 front pump chamber 92, or bolts and other detachable connections.
  • the filter 8 of the present invention is a frame structure of a column, one end is a support plate 84, and the other end is the filter outlet 82.
  • the support plate 84 and the filter outlet 82 are connected by a support piece 81, and the filter outlet 82 is a hollow cylindrical structure, the hollow cylinder is integrally provided with a pressure relief plate 3 coaxially with one end of the water-leaching blade 4; if the installation end cover 83 is connected with the filter 8, the installation end cover 83 and the support plate 84 are axially extendable Connected in a relatively rotational manner.
  • the pressure relief plate 3 is a ring structure, and the inner diameter of the ring is the same as the inner diameter of the filter outlet 82, and is smaller than the outer diameter of the water-leaching blade 4.
  • the pressure relief hole 31 is evenly arranged on the ring; the shape of the pressure relief hole 31 is circular 2-1 ⁇
  • the cross-sectional area of the outlet of the water outlet 6 is 0. 2-1 times.
  • the outer diameter of the filter outlet 82 is smaller than the diameter of the support plate 84; the support piece 81 has an L-shaped structure, and the length of the hollow cylinder, that is, the filter outlet 82 is smaller than the distance between the support plate 81 and the pressure release plate 3, preferably The length of the filter outlet 82 does not completely block the water inlet path of the inlet 2 .
  • the support piece 81 is provided with a positioning protrusion 7 on the side of the inner wall of the front pump chamber 92, and the inner wall of the front pump chamber 92.
  • a positioning chute (not shown) corresponding to the positioning protrusion 7 is disposed in the axial direction of the front pump chamber from the opening port 9, and the positioning slip is prevented in order to prevent the supporting piece 81 from blocking the water inlet path of the inlet pipe 2
  • the groove and the inlet port are not in the same axial line.
  • the support piece 81 is 2-4 sets, preferably 2 sets.
  • Pressure relief hole 31 is shorter The time enters the front pump chamber 92. Since the front pump chamber 92 and the water inlet port 2 are in communication with the washing tub, the air in the rear pump chamber can smoothly discharge the pressure to the front pump chamber through the pressure releasing hole 31. In the connected barrels, the noise of "bang-bang" is reduced.
  • the pressure relief hole 31 is provided at a portion where the rear pump chamber has pressure, as shown in Fig. 2, thus ensuring that when the water in the rear pump chamber 91 is recirculated from the outlet port 6, There is not much resistance and the pressure can be vented to the front pump chamber 92 and the connected barrel.
  • the outer diameter C of the water-repellent blade matches the inner diameter B of the annular rib 93, matching the outer diameter and the ring of the finger-leaf
  • the inner diameter of the ribs is equal, or slightly larger or slightly smaller; the inner diameter of the filter outlet 82 of the filter 8 is smaller than the outer diameter of the water-repellent blade (: If the inner diameter of the filter outlet 82 is too large, the rear pump chamber 91 does not have The space for forming pressure is not conducive to the drainage of the drain pump; the outer diameter of the pressure relief plate 3 is larger than the inner diameter B of the annular rib 93, and the filter is prevented from being swayed by the blocking of the annular rib 93.
  • the washing machine drain pump device comprises a pump chamber and a right end cover of the filter to form a closed pump chamber, and a pressure relief hole for removing gas is arranged on the end surface of the left end of the filter, no additional components are added, and the fault is simple and reliable.
  • the low rate does not increase any cost, ensuring that the water-air mixture in the pump casing can flow between the pump chamber and the filter chamber during the draining process, effectively reducing noise pollution during drying of the washing machine.
  • the present invention is not limited to the above examples, and various modifications and changes can be made to the present invention without departing from the spirit and scope of the invention.
  • the technical solution is not only applicable to a drum washing machine, but also to an upper drain washing machine with a drain pump device, a stirring washing machine, and the present invention covers such modifications and changes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General 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

一种洗衣机排水泵装置及其洗衣机，洗衣机包括进水系统、含有排水泵装置的排水系统，排水泵装置包括排水电机（5）、泵壳（1）、拨水叶（4）、过滤器（8），泵壳（1）上还设有进水管口（2）、出水管口（6），泵壳（1）内部按照进出水的先后顺序包括相通的前泵腔室（92）和后泵腔室（91），所述的拨水叶（4）设于后泵腔室（91）内，与排水电机（5）的转轴同轴安装，过滤器（8）设于前泵腔室（92）内，所述过滤器（8）的过滤出口对应拨水叶（4）的一侧一体设有带泄压孔（31）的泄压板（3）。本发明结构简单，故障率低，确保排水过程中泵壳内水气混合物可以在泵腔和过滤腔之间流动，在洗衣机排水脱水期间，有效降低噪音污染。

Description

洗衣机排水泵装置及其洗衣机 技术领域
本发明涉及一种洗衣机， 特别是涉及使用排水泵装置的洗衣机以及该洗衣机的低噪音 排水泵装置。
背景技术
家用电动洗衣机分为波轮式洗衣机、 滚筒洗衣机、 搅拌洗衣机， 滚筒洗衣机最早应用 于欧洲， 随着人们消费水平和观念的变化， 滚筒洗衣机也越来越广泛的被亚洲人们所接受。 同时随着社会生活环境的不断改善， 洗衣机用户家庭生活品质的不断提高， 安静的居住环 境越来越受到大家的重视。 家电噪音也成了各家电生产商解决的重要问题之一， 其中洗衣 机的静音指标在不断提高。
滚筒洗衣机均采用上排水方式， 筒内的水通过排水泵装置、 排水管排出机外。 在排水 时排水泵装置受到水管内水流冲击而产生的 "嗡一 -嗡"的循环噪音无法彻底解决。 滚筒洗 衣机内的水排空后， 因为排水泵装置有一个 1. 2米左右的扬程， 这段水管内存的水无法排 出， 反而在重力的作用下， 不断向下冲击排水泵装置叶轮， 又被叶轮甩出， 如此便造成"嗡 一嗡" 的噪音， 在现有低端洗衣机上都采用水位开关器件， 排水泵装置只能在整个甩干过 程中一直工作， 即便是在高端洗衣机上采用了水位传感器， 虽可以在低水位时判断到最低 水位， 停止排水泵装置工作。 但传感器的信号通常会受到干扰而漂移， 极易误判， 其结果 要么仍然有噪音， 要么排水不干净， 不能满足用户的低噪音需求。
申请为 CN200920230820. 4的中国专利公开了一种洗衣机排水泵装置的低噪声泵壳， 主 要包括在泵壳靠近出水口处的泵腔与过滤腔之间的泵内内壁端面上增设一个防爆孔， 但是 此防爆口低于出水管口， 即在泵室内仍然会形成水气混合体， 并不能完全解决排水管内水 回流时冲击叶轮产生的噪音。
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， 提供一种能够降低噪音的洗衣机 排水泵装置。 本发明的另一目的在于提供具有该排水泵装置的洗衣机。 为解决上述技术问题， 本发明采用技术方案的基本构思是： 一种洗衣机排水泵装置， 包括排水电机、 泵壳、 拨水叶、 过滤器， 泵壳上还设有进水管口、 出水管口， 泵壳内部按 照进出水的先后顺序包括相通的前泵腔室和后泵腔室， 所述的拨水叶设于后泵腔室内， 与 排水电机的转轴同轴安装， 过滤器设于前泵腔室内， 所述过滤器的过滤出口对应拨水叶的 一侧一体设有带泄压孔的泄压板。 所述的出水管口沿拨水叶径向设于后泵腔室的泵壳上， 进水管口垂直于前泵腔室的轴 向方向设于前泵腔室的泵壳上。 所述的前泵腔室一端与后泵腔室相通， 另一端为开放口， 过滤器通过该开放口安装于 前泵腔室内， 该开放口通过安装端盖以封闭。 所述的安装端盖与过滤器为一体结构， 安装端盖与过滤器之间相对可转动， 安装端盖 与前泵腔室螺纹密封连接。 所述的过滤器为柱体的框架结构， 一端为支撑板， 另一端为所述的过滤出口， 支撑板 和过滤出口之间通过支撑片连接， 过滤出口为一中空圆筒结构， 中空圆筒相对拨水叶的一 端同轴一体设有所述的泄压板。 所述的泄压板为一圆环结构， 圆环内径与过滤出口内径相同， 小于所述拨水叶的外径， 圆环上均匀设有泄压孔。 所述的过滤出口外径小于支撑板的直径， 支撑片为 L形结构， 中空圆筒的长度小于支 撑板和泄压板之间的距离， 优选为中空圆筒的长度不完全阻挡进水管口的进水路径。 所述的支撑片对应前泵腔室内壁的一侧设有定位凸块， 前泵腔室内壁自开放口沿前泵 腔室轴向设有与定位凸块对应匹配的定位滑槽， 该定位滑槽与进水管口不在同一轴向直线 上。 所述的支撑片为 2-4组， 优选的为 2组。 所述的前泵腔室和后泵腔室之间设有支撑泄压板的环状凸筋， 所述泄压板的最大直径 大于环状凸筋的内径， 拨水叶的外径与环状凸筋的内径相匹配。 所述的泄压孔的形状为圆形、 椭圆形、 方形或者条状的通孔中的至少一种， 所述泄压 孔的总面积为出水管口截面面积的 0. 2-1倍。 本发明所述的洗衣机， 包括进水系统、 含有排水泵装置的排水系统， 排水泵装置包括 排水电机、 泵壳、 拨水叶、 过滤器， 泵壳上还设有进水管口、 出水管口， 泵壳内部按照进 出水的先后顺序包括相通的前泵腔室和后泵腔室， 所述的拨水叶设于后泵腔室内， 与排水 电机的转轴同轴安装， 过滤器设于前泵腔室内， 所述过滤器的过滤出口对应拨水叶的一侧 一体设有带泄压孔的泄压板。 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。 本发明所述的排水泵装置， 泵壳内部按照进出水的先后顺序包括相通的前泵腔室和后 泵腔室， 在排水泵过滤器的过滤出口对应拨水叶的一侧一体设有带泄压孔的泄压板。 本发 明所述的上述改进， 排水时， 当排水泵将水排尽后， 由于在后面脱水程序中衣服里的水会 不断地甩出来， 所以排水泵不会停止工作； 此时排水管回流的水在重力的作用下以较大的 冲击力冲击泵腔内空气， 由于泵腔内的空气可以通过泄压孔排出， 从而避免了洗衣机甩干 时产生的"轰-轰 "的噪音。本发明改进的结构简单可靠， 实现低成本降噪效果， 故障率低， 解决了洗衣过程中噪音烦扰消费者的问题， 更加人性化。
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
图 1为本发明实施例排水装置示意图；
图 2为图 1中泄压板的 A-A向视图； 图 3为本发明所述过滤器的剖视图； 图 4为图 3的 D-D向视图； 图 5为本发明所述的过滤器结构示意图。 图中所示标注为： 1.泵壳， 2.进水管口， 3.泄压板， 31.泄压孔， 4.拨水叶， 5.排水电 机， 6.出水管口， 7. 定位凸块， 8.过滤器， 81.支撑片， 82.过滤出口， 83.安装端盖， 84. 支撑板， 9.开放口， 91.后泵腔室， 92.前泵腔室， 93.环状凸筋 具体实施方式
本发明所述的洗衣机， 包括进水系统、 含有排水泵装置的排水系统， 如图 1和图所示， 洗衣机排水泵装置包括泵壳 1、 泵壳 1 内部按照进出水的先后顺序包括相通的前泵腔室 92 和后泵腔室 91， 也即图中所示的右泵腔室和左泵腔室， 前泵腔室 92和后泵腔室 91之间设 有环状凸筋 93。 所述的拨水叶 4设于后泵腔室 91内， 与排水电机 5的转轴同轴安装， 过滤器 8设于前 泵腔室 92内， 所述的出水管口 6沿拨水叶 4径向设于后泵腔室 91的泵壳上， 进水管口 2 垂直于前泵腔室 92的轴向方向设于前泵腔室的泵壳上； 前泵腔室 92—端与后泵腔室 91相 通， 另一端为开放口 9， 过滤器 8通过该开放口安装于前泵腔室 92内， 该开放口 9通过安 装端盖 83以封闭。 该安装端盖 83为一独立的可拆卸的安装在开放口 9上的个体机构， 或者， 安装端盖 83 与过滤器 8连接为一体结构， 安装端盖 83与过滤器 8之间相对可转动， 安装端盖与 83前 泵腔室 92的开放口 9螺纹密封连接， 或者螺栓及其它可拆卸连接方式。 本发明所述的过滤器 8为柱体的框架结构， 一端为支撑板 84， 另一端为所述的过滤出 口 82， 支撑板 84和过滤出口 82之间通过支撑片 81连接， 过滤出口 82为一中空圆筒结构， 中空圆筒相对拨水叶 4的一端同轴一体设有泄压板 3; 若安装端盖 83与过滤器 8连接， 则 安装端盖 83与支撑板 84在轴向上可相对转动地连接。
所述泄压板 3为一圆环结构，圆环内径与过滤出口 82内径相同，小于拨水叶 4的外径， 圆环上均匀设有泄压孔 31 ; 泄压孔 31的形状为圆形、椭圆形、 方形或者条状的通孔中的至 少一种， 所述泄压孔 31的总面积为出水管口 6出水截面面积的 0. 2-1倍。 优选的， 所述的过滤出口 82外径小于支撑板 84的直径； 支撑片 81为 L形结构， 中空 圆筒即过滤出口 82的长度小于支撑板 81和泄压板 3之间的距离， 优选为过滤出口 82的长 度不完全阻挡进水管口 2的进水路径。 本发明为了防止过滤器 8在前泵腔室 92 内转动而影响排水效率， 在所述的支撑片 81 对应前泵腔室 92内壁的一侧设有定位凸块 7，前泵腔室 92内壁自开放口 9沿前泵腔室轴向 设有与定位凸块 7对应匹配的定位滑槽 （图中未示出） ， 为了避免支撑片 81阻挡进水管口 2的进水路径， 该定位滑槽与进水管口不在同一轴向直线上。 所述的支撑片 81为 2-4组， 优选的为 2组。 当洗衣机排水时， 洗衣机桶内洗涤水从泵壳进水管口 2进入， 充满到前泵腔室 92、 后 泵腔室 91， 在拨水叶 4的作用下将水从出水管口 6经排水管排出洗衣机外。 洗涤水从前泵 腔室 92进入后泵腔室 91时， 通过过滤器口 82， 将硬币或杂物挡在过滤器口外部的前泵腔 室 92， 避免进入到后泵腔室 91中损坏拨水叶 4。 当桶内洗涤水接近排空时， 进水管口 2很 少水进入前泵腔室 92， 此时， 出水管口 6和洗衣机排水管 （图中未示出） 内的水在重力作 用下回流， 以较高的速度冲击后泵腔室 91， 此时后泵腔室 91内的空气由于拨水叶转动离心 力的作用具有一定的压力后泵腔室 91 内的压力可以通过泄压板 3上的泄压孔 31在较短的 时间内进入到前泵腔室 92， 由于前泵腔室 92、 进水管口 2与洗衣桶是连通的， 后泵腔室中 的空气通过泄压孔 31 能够顺利将压力排到前泵腔室及相连通的桶中， 减少了 "轰 -轰" 的 噪音。
本发明的最佳实施例中， 泄压孔 31设置在后泵腔室具有压力的部位， 如图 2所示， 这 样保证后泵腔室 91中在有水从出水管口 6回流时， 也不会有太大的阻力， 并且可以将压力 排到前泵腔室 92及相连通的桶中。
为了让过滤器 8正好堵住后泵腔室 91的一侧形成相对密闭的空间， 拨水叶的外径 C与 环状凸筋 93的内径 B相匹配， 相匹配指拨水叶外径与环状凸筋的内径相等， 或略大于或略 小于均可； 过滤器 8的过滤出口 82的内径小于拨水叶的外径 (：。若过滤出口 82内径过大的 话， 后泵腔室 91没有形成压力的空间， 不利于排水泵的排水； 所述泄压板 3的外径大于环 状凸筋 93的内径 B， 通过环状凸筋 93的阻挡防止过滤器窜动。 综上所述， 通过采用上述的技术方案， 洗衣机排水泵装置由泵壳和过滤器右端盖组成 封闭的泵腔， 过滤器左端的端面上设置有可以排除气体的泄压孔， 不再外加零部件， 简单 可靠， 故障率低， 不会增加任何成本， 确保排水过程中泵壳内水气混合物可以在泵腔和过 滤腔之间流动， 在洗衣机甩干期间， 有效降低噪音污染。 当然， 本发明并不限于上述举例， 对于本领域技术人员来说显而易见的技术方案， 在 不脱离本发明的精神或范围的情况下， 对本发明做各种修改和改变在本发明权利要求及其 等同替换的范围内， 此技术方案不仅适用于滚筒洗衣机， 同时还适用于带排水泵装置的上 排水波轮洗衣机、 搅拌洗衣机， 则本发明涵盖这样的修改和改变。

Claims

权 利 要 求 书
1、 一种洗衣机排水泵装置， 包括排水电机、 泵壳、 拨水叶、 过滤器， 泵壳上还设有进 水管口、 出水管口， 泵壳内部按照进出水的先后顺序包括相通的前泵腔室和后泵腔室， 所 述的拨水叶设于后泵腔室内， 与排水电机的转轴同轴安装， 过滤器设于前泵腔室内， 其特 征在于： 所述过滤器的过滤出口对应拨水叶的一侧一体设有带泄压孔的泄压板。
2、 根据权利要求 1所述的洗衣机棑水泵装置， 其特征在于： 所述的出水管口沿拨水叶 径向设于后泵腔室的泵壳上， 进水管口垂直于前泵腔室的轴向方向设于前泵腔室的泵壳上。
3、 根据权利要求 1所述的洗衣机排水泵装置， 其特征在于： 所述的前泵腔室一端与后 泵腔室相通， 另一端为开放口， 过滤器通过该开放口安装于前泵腔室内， 该开放口通过安 装端盖以封闭。
4、 根据权利要求 3所述的洗衣机排水泵装置， 其特征在于： 所述的安装端盖与过滤器 为一体结构， 安装端盖与过滤器之间相对可转动， 安装端盖与前泵腔室螺纹密封连接。
5、 根据权利要求 1-4任一所述的洗衣机排水泵装置， 其特征在于： 所述的过滤器为柱 体的框架结构， 一端为支撑板， 另一端为所述的过滤出口， 支撑板和过滤出口之间通过支 撑片连接， 过滤出口为一中空圆筒结构， 中空圆筒相对拨水叶的一端同轴一体设有所述的 泄压板。
6、 根据权利要求 5所述的洗衣机排水泵装置， 其特征在于： 所述的泄压板为一圆环结 构， 圆环内径与过滤出口内径相同， 小于所述拨水叶的外径， 圆环上均匀设有泄压孔。
7、 根据权利要求 5所述的洗衣机排水泵装置， 其特征在于： 所述的过滤出口外径小于 支撑板的直径， 支撑片为 L形结构， 中空圆筒的长度小于支撑板和泄压板之间的距离。
8、 根据权利要求 7所述的洗衣机排水泵装置， 其特征在于： 所述的支撑片对应前泵腔 室内壁的一侧设有定位凸块， 前泵腔室内壁自开放口沿前泵腔室轴向设有与定位凸块对应 匹配的定位滑槽， 该定位滑槽与进水管口不在同一轴向直线上。
9、 根据权利要求 7或 8所述的洗衣机排水泵装置， 其特征在于： 所述的支撑片为 2-4 组。
10、 根据权利要求 1或 6所述的洗衣机排水泵装置， 其特征在于： 所述的前泵腔室和 后泵腔室之间设有支撑泄压板的环状凸筋， 所述泄压板的最大直径大于环状凸筋的内径， 拨水叶的外径与环状凸筋的内径相匹配。
11、 根据权利要求 1或 6所述的洗衣机排水泵装置， 其特征在于： 所述的泄压孔的形 状为圆形、 椭圆形、 方形或者条状的通孔中的至少一种， 所述泄压孔的总面积为出水管口 截面面积的 0. 2-1倍。
12、 一种洗衣机， 包括进水系统、 含有排水泵装置的排水系统， 其特征在于： 所述排 水系统采用如权利要求 1-11任一所述的排水泵装置。
PCT/CN2011/084821 2011-11-08 2011-12-28 洗衣机排水泵装置及其洗衣机 WO2013067739A1 (zh)

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