CN201722529U

CN201722529U - Drainage pump of washing machine

Info

Publication number: CN201722529U
Application number: CN2010202937389U
Authority: CN
Inventors: 王胜; 夏长植; 沈玉明; 贺寅; 邵韦; 肖楠
Original assignee: CHANGZHOU LEILI ELECTRICAL EQUIPMENT Co Ltd
Current assignee: CHANGZHOU LEILI ELECTRICAL EQUIPMENT Co Ltd
Priority date: 2010-08-16
Filing date: 2010-08-16
Publication date: 2011-01-26
Anticipated expiration: 2020-08-16

Abstract

The utility model discloses a drainage pump of a washing machine, which comprises a motor, a pump casing, an impeller, a drainage pipeline and a circulation pipeline; the motor is fixed at the bottom of the pump casing; the lower part of the pump casing is provided with a pump cavity, and the upper part of the pump casing is provided with a water inlet; the impeller is positioned in the pump cavity of the pump casing and is fixed on a motor shaft of the motor; and the drainage pipeline and the circulation pipeline are arranged in the same direction, are respectively fixed at both sides of the pump casing and are both tangential with the inner wall of the pump cavity. In the utility model, water circulation or drainage is controlled by controlling the rotation direction of the motor, thereby realizing the functions of water circulation and water drainage by means of one pump casing.

Description

A kind of drainage pump of washing machine

Technical field

The utility model relates to a kind of drainage pump of washing machine.

Background technology

The existing employed motor of drainage pump of washing machine is the single-phase permanent synchronous motor, and this motor belongs to " uncontrollable " motor because the restriction of himself characteristic causes turning to rotating speed of motor uncontrollable on the one hand; On the other hand, see Fig. 1, washing machine washings in the wash bucket and the washing back that finishes of will realizing circulating is discharged washings two difference independently circulating pump and draining pump need be set in washing machine, furtherly, the motor that need be provided for driving the motor of circulating pump individually and be used to drive draining pump, so improved manufacturing cost, also increased the power consumption of washing machine and the complexity of internal duct simultaneously.

Chinese patent literature CN03109634.4 provides a kind of " roller washing machine ", and comprising: circulating pump, draining pump and motor, circulating pump possess centrifugal impeller is arranged, and by the fluid that centrifugal force can suck to central authorities, discharges along circumferencial direction; Draining pump is after circumferencial direction one side sucks fluid, and the rotation of the impeller by inside is discharged fluid to the another side of circumferencial direction again; Motor can make circulating pump and draining pump be rotated simultaneously.Though this roller washing machine has reduced by a motor, two water pumps use different pump cases respectively, and impeller and pump chamber structure more complicated, so the actual simplification of operation; In addition,, therefore increased the load of motor on the contrary, increased wearing and tearing, shortened the service life of motor motor owing to still there are two water pumps.

In sum, for simplifying assembly process, reduced manufacturing cost and power consumption, the utmost point need design a kind of new drainage pump of washing machine, makes it to realize simultaneously by a motor and water pump the work of existing washing machine circulating pump and draining pump.

The utility model content

The purpose of this utility model is to provide a kind of drainage pump of washing machine, and structure and operation are simple, can realize the work of existing washing machine circulating pump and draining pump by a motor and water pump simultaneously.

The technical scheme that realizes the utility model purpose is: a kind of drainage pump of washing machine, comprise motor, pump case, impeller, drainage pipeline and circulating line, and described motor is fixed on the bottom of pump case; The bottom of described pump case is a pump chamber, and top is water inlet; Described impeller is positioned at the pump chamber of pump case, and is fixed on the motor shaft of motor; Described drainage pipeline and circulating line be to the equidirectional setting, and be separately fixed at the both sides of pump case, and all tangent with the inwall of pump chamber.

A kind of drainage pump of washing machine also comprises block arc, and block arc is fixed on the junction of the inwall of drainage pipeline and pump chamber.

The brush-less permanent magnetic direct current generator of described motor for carrying out rotating.

The utlity model has following beneficial effect: (1) drainage pipeline of the present utility model and circulating line are to the equidirectional setting, and be separately fixed at the both sides of pump case, and it is all tangent with the inwall of pump chamber, so just, can come Control Circulation water or draining by the direction of rotation of control motor, thereby rely on a pump case to realize the function of recirculated water and draining.

(2) block arc of the present utility model is fixed on the junction of the inwall of drainage pipeline and pump chamber, and this structure makes that block arc blocks washings when recirculated water, guarantees that washings can not be discharged from.

Description of drawings

For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below

Fig. 1 is the draining of the washing machine of employing prior art and the simplified diagram of the circulatory system.

Fig. 2 is the draining of employing washing machine of the present utility model and the simplified diagram of the circulatory system.

Fig. 3 is a structural representation of the present utility model.

Schematic diagram when Fig. 4 realizes drain function for the utility model.

Schematic diagram when Fig. 5 realizes circulatory function for the utility model.

Label is in the accompanying drawing:

Motor 1, pump case 2, pump chamber 21, water inlet 22, impeller 3, drainage pipeline 4, circulating line 5, block arc 6.

The specific embodiment

(embodiment 1)

See Fig. 2 and Fig. 3, present embodiment comprises motor 1, pump case 2, impeller 3, drainage pipeline 4, circulating line 5 and block arc 6.

The brush-less permanent magnetic direct current generator of motor 1 for carrying out rotating.Motor 1 is fixed on the bottom of pump case 2.The bottom of pump case 2 is a pump chamber 21, and top is water inlet 22.Impeller 3 is positioned at the pump chamber 21 of pump case 2, and is fixed on the motor shaft of motor 1.Drainage pipeline 4 and circulating line 5 be to the equidirectional setting, and be separately fixed at the both sides of pump case 2, and all tangent with the inwall of pump chamber 21.Block arc 6 is fixed on the junction of the inwall of drainage pipeline 4 and pump chamber 21.

See Fig. 4, during washing machine drainage, impeller 3 is rotated in a clockwise direction under the drive of motor 1, washings are inhaled in the pump chamber 21 by water inlet 22, washings are along with the rotation of impeller 3, to drainage pipeline 4 drainings tangent with pump chamber 21 inwalls, this moment and the tangent circulating line 5 of pump chamber 21 inwalls do not have the washings that can introduce, just connect air in the pipeline.

See Fig. 5, during the washing machine cycling use of water, when impeller 3 rotates under the drive of motor 1 in the counterclockwise direction, washings are inhaled in the pump chamber 21 by water inlet 22, washings are along with the rotation of impeller 3, and to circulating line 5 drainings tangent with pump chamber 21 inwalls, and block arc 6 has avoided the washings in the pump chamber 21 to discharge outside the washing machine from drainage pipeline 4, this moment and the tangent drainage pipeline 4 of pump chamber 21 inwalls do not have the washings that can introduce, just connect air in the pipeline.

Should be appreciated that specific embodiment described above only is used to explain the utility model, and be not used in qualification the utility model.Conspicuous variation of being extended out by spirit of the present utility model or change still are among the protection domain of the present utility model.

Claims

1. drainage pump of washing machine, it is characterized in that: comprise motor (1), pump case (2), impeller (3), drainage pipeline (4) and circulating line (5), described motor (1) is fixed on the bottom of pump case (2); The bottom of described pump case (2) is pump chamber (21), and top is water inlet (22); Described impeller (3) is positioned at the pump chamber (21) of pump case (2), and is fixed on the motor shaft of motor (1); Described drainage pipeline (4) and circulating line (5) be to the equidirectional setting, and be separately fixed at the both sides of pump case (2), and all tangent with the inwall of pump chamber (21).

2. a kind of drainage pump of washing machine according to claim 1 is characterized in that: also comprise block arc (6), block arc (6) is fixed on the junction of the inwall of drainage pipeline (4) and pump chamber (21).

3. a kind of drainage pump of washing machine according to claim 2 is characterized in that: the brush-less permanent magnetic direct current generator of described motor (1) for carrying out rotating.