WO2010075655A1 - 一种带有双换向器永磁直流电动机的水泵 - Google Patents

一种带有双换向器永磁直流电动机的水泵 Download PDF

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Publication number
WO2010075655A1
WO2010075655A1 PCT/CN2009/000004 CN2009000004W WO2010075655A1 WO 2010075655 A1 WO2010075655 A1 WO 2010075655A1 CN 2009000004 W CN2009000004 W CN 2009000004W WO 2010075655 A1 WO2010075655 A1 WO 2010075655A1
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WIPO (PCT)
Prior art keywords
pump
motor
outlet
water
cover
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Application number
PCT/CN2009/000004
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English (en)
French (fr)
Inventor
陆新
Original Assignee
常州富邦电气有限公司
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Application filed by 常州富邦电气有限公司 filed Critical 常州富邦电气有限公司
Priority to PCT/CN2009/000004 priority Critical patent/WO2010075655A1/zh
Publication of WO2010075655A1 publication Critical patent/WO2010075655A1/zh

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Classifications

    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2283—Rotors specially for centrifugal pumps with special measures for reverse pumping action
    • 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
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/50—Fluid-guiding means, e.g. diffusers adjustable for reversing fluid flow
    • F04D29/506—Fluid-guiding means, e.g. diffusers adjustable for reversing fluid flow especially adapted for liquid pumps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/26—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the armature windings
    • H02K23/36—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the armature windings having two or more windings; having two or more commutators; having two or more stators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Definitions

  • the utility model relates to a centrifugal water pump for vehicles, in particular to a water pump of a permanent magnetic direct current motor with double commutators.
  • the water pump When the existing centrifugal water pump and the matching motor are used at the same time, the water pump generally has only one water outlet, and the motor matched with the water pump uses a single iron core and a single commutating structure, and only a single rotation speed can be provided under the same voltage, and two different needs are provided. At the speed, it is generally necessary to use two motors with different speeds or use an electric motor to install electronic speed control.
  • multiple water pump outlets are required and different pressure values are provided for each water outlet, multiple pumps and motors must be installed.
  • valves and control equipment which inevitably leads to an increase in the number of equipment, complicated control, increased volume and weight, resulting in increased equipment procurement costs, poor reliability of the entire system and disadvantages for vehicle installation and use.
  • the water pump has a plurality of water outlets and the pressure values of the respective water outlets are different, and the number of equipments is increased
  • the utility model provides a water pump and a water pump of a permanent magnet DC motor with a double commutator, which has complicated control, increased volume and weight, and increases equipment procurement cost, poor reliability of the whole system and disadvantages of vehicle installation and use.
  • the water outlet and the second water outlet are equipped with a motor that can achieve two different speeds and steering at the same voltage, realize the two-way high and low pressure water discharge of the water pump, and make the water pump and the matched motor simple in overall structure. light.
  • a water pump of a permanent magnet direct current motor with a double commutator comprising a water pump and an electric motor;
  • the water pump comprises a pump casing, a pump cover, an impeller, and a pump casing
  • the motor is mounted, the motor shaft and the impeller are axially mounted, the impeller is disposed in a combined cavity between the pump casing and the pump cover, and the water inlet of the impeller and the pump cover is correspondingly installed, the motor including the casing and the left end cover , the right end cover, the rotating shaft, the magnetic steel, the iron core, the inner winding, the outer winding, and the left end cover and the right end cover are disposed at the two ends of the casing, and a rotating shaft is arranged in the casing, and a core is arranged in the middle of the rotating shaft, and the core is arranged in the casing
  • the inner wall is provided with a magnetic steel opposite to the iron core, and the water pump is provided with
  • two different speed motors can be provided, and different pressures are applied to the diaphragm by different speeds of the motor, and the first water outlet and the second outlet are respectively closed by the diaphragm.
  • the nozzle thus achieving the two-way high and low water pump Press out the water.
  • the utility model provides a water pump with a permanent magnet direct current motor with a double commutator, and through the cooperation of the electric motor and the water pump, the water pump bidirectional high and low pressure water is discharged, and the water pump and the matched motor are integrated in the whole structure. It is simple and light, reduces the cost of purchasing equipment, improves the reliability of system operation, and is beneficial to the advantages and benefits of vehicle installation and use.
  • FIG. 1 is a schematic structural view of a conventional permanent magnet DC motor.
  • FIG. 2 is a left side view of a conventional permanent magnet DC motor rotor.
  • FIG. 3 is a schematic structural view of the motor of the present invention.
  • Figure 4 is a left side view of the rotor of the motor of the present invention.
  • FIG. 5 is a circuit diagram of the motor of the present invention.
  • Figure 6 is a schematic view showing the structural position of the water pump and the motor assembly of the present invention.
  • Figure 7 is a schematic view of the A-direction of the pump casing and the pump cover coupling chamber (18) of the present invention.
  • the utility model relates to a water pump of a permanent magnet direct current motor with a double commutator.
  • the motor 11 is disposed in the pump casing 12, and the water pump and the motor 11 are axially connected by the impeller 14 and the motor shaft 3, and the impeller 14 is sleeved on the motor shaft 3 through the concave and convex surface, and the motor 11 is wrapped by the pump casing 12.
  • the rear snap connection is fixed so that the motor 11 is integrated with the water pump.
  • the pump casing 12, the pump cover 13, and the impeller 14 of the water pump are made of plastic, and the motor shaft 3 is sealed with the sealing ring 15 at the axial connection with the impeller 14, in the pump casing 12 and the pump.
  • a coupling cavity 18 is formed between the cover 13, and the coupling cavity 18 is fixed by the pump casing 12 and the pump cover 13 through a snap connection.
  • the impeller 14 is disposed in the coupling cavity 18, and the impeller 14 is the same as the axial water inlet 16 on the pump cover 13.
  • the axis corresponds to the installation. As shown in FIG.
  • a first outlet 19 and a second outlet 20 are horizontally disposed in the same direction along the tangential direction on the pump casing 12 at the water pump coupling chamber 18, and the pump cover 13 corresponds to the positions of the first outlet 19 and the second outlet 20.
  • a first water outlet 21 and a second water outlet 22 are also provided.
  • the first outlet 19 and the second outlet 20 are respectively connected to the first water outlet 21 and the second water outlet 22 on the pump cover 13, and the pump cover 13 is respectively connected.
  • a diaphragm 23 is disposed between the water outlet 21 and the second water outlet 22, and the peripheral edge of the diaphragm 23 is combined with the first water outlet 21 and the second water outlet 22 of the pump cover 13, and is tightly sealed and fixed.
  • the first water outlet 21 and the second water outlet 22 are separated from each other, and the diaphragm 23 is made of a circular shape and is made of a silicone rubber material. It can also be replaced by other rubber materials.
  • the impeller 14 of the water pump is counterclockwise high speed.
  • the middle portion of the diaphragm 23 is displaced, and the normally open first water outlet 21 is closed while the normally closed second water outlet 22 is opened, so that the first water outlet 21 and the second water outlet 22 can be switched to each other.
  • the common permanent magnet DC motor uses a single core 4 and a single commutation structure, and the core 4 is wound with a winding 6, and only a single rotation speed can be provided under the same voltage, as shown in Fig. 3.
  • a permanent magnet DC motor 11 with a double commutator shown in FIG. 4 has a casing 1 , and a left end cover 2-1 and a right end cover 2-2 are disposed at both ends of the casing 1 , and the casing 1 is provided with a casing
  • the rotating shaft 3, the middle portion of the rotating shaft 3 is provided with a core 4, and the inner wall of the casing 1 is provided with a magnetic steel 5 opposite to the iron core 4, and two inner layers of different parameters are wound on the same core 4, respectively.
  • the cover 2-2 is respectively provided with a left carbon brush 8-1 and a right carbon brush 8-2, and one ends of the left commutator 7-1 and the right commutator 7-2 are worn on the left carbon brush 8-1 and the right.
  • the left end piece 2-1 and the right end cover 2-2 of the left carbon brush 8-1 and the right carbon brush 8-2 are respectively led to the left end piece 9-1 and the right end piece 2-2, respectively.
  • right lug 9-2 is a left carbon brush 8-1 and a right carbon brush 8-2, and one ends of the left commutator 7-1 and the right commutator 7-2 are worn on the left carbon brush 8-1 and the right.
  • the impeller 14 is driven to rotate at a high speed by the motor shaft 3, wherein the liquid rotates together with the impeller 14, and the centrifugal force is emitted from the impeller 14 to be emitted outward, and the emitted liquid diffuses in the pump casing, and the speed gradually becomes slow, and the pressure is gradually increased. And then flowing out from the first water outlet 21 or the second water outlet 22 of the water pump. At this time, at the center of the impeller, a vacuum low pressure zone having neither air nor liquid is formed due to the liquid being smashed to the surroundings, and the liquid in the water tank is in the pool.
  • the water inlet 16 on the pump pump cover 13 flows into the water pump, so that the liquid is continuously sucked from the water tank and continuously flows out from the first water outlet 21 or the second water outlet of the water pump. 22; wherein the first water outlet 21 of the water pump is in a normally open state and is a low pressure water outlet.
  • the motor 11 drives the impeller 14 to rotate counterclockwise, the liquid flows out of the pump body through the first water outlet 21, and the second water outlet 22 is normally closed.
  • the state is the high pressure water outlet.
  • the impeller 14 turns accordingly, because the speed is high and the pressure is high.
  • a first movable diaphragm 23 to close outlet 21 The second water outlet 22 is opened, and the liquid flows out from the second water outlet 22, thereby realizing two-way high and low pressure water discharge of the water pump; the motor 11 used with the water pump is wound on the same iron core 4 to successively wind two inner windings of different parameters.
  • inner winding 6-1 and outer winding 6-2 are respectively connected to left commutator 7-1 and right commutator 7-2 mounted on reel 3, at left end cover 2-1
  • the right end cover 2 - 2 are respectively provided with a left carbon brush 8-1 and a right carbon brush 8-2, and one ends of the left commutator 7-1 and the right commutator 7-2 are worn on the left carbon brush 8-1
  • the left end piece 2-1 and the right end cover 2-2 of the left carbon brush 8-1 and the right carbon brush 8-2 are respectively led to the left end piece 9 and the right end cover 2-2, respectively.
  • the DC power source 10 is respectively flown through the iron core 4, the inner winding 6-1, the left commutator 7-1, and the left carbon brush 8-1 through the external switch 17 of the motor 11.
  • the associated circuit or the circuit connected by the iron core 4, the outer winding 6-2, the right commutator 7-1 and the right carbon brush 8-1 is excited by the magnetic steel 5 so that the motor shaft 3 can be reversed separately Hour hand and clockwise operation, through internal and external windings ⁇ The difference in number in turn causes the motor 11 to provide two different rotational speeds.
  • the DC power source 10 is separately flowed through the iron core 4, the inner winding 6-1, and the left by the external control switch 17.
  • a circuit connecting the 7-1 and the left carbon brush 8-1 or a circuit connected by the iron core 4, the outer winding 6-2, the right commutator 7-2 and the right carbon brush 8-2, by a magnetic steel 5' provides excitation, so that the motor shaft 3 can be operated in counterclockwise and clockwise directions respectively.
  • the motor 11 can provide two different speeds through the difference of the number of turns of the inner and outer windings. High and low pressure water.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Description

一种带有双换向器永磁直流电动机的水泵 技术领域
本实用新型涉及一种车用离心水泵， 具体说是一种带有双换向器的永 磁直流电动机的水泵。
背景技术
现有的离心水泵和配套电动机同时使用时，水泵一般只有一个出水口， 与水泵配套的电动机使用单一铁芯和单一换向结构， 相同电压下只能提供 单一的转速， 在需要提供两种不同转速时， 一般要使用两个不同转速的电 动机或者使用一台电动机加装电子调速， 在需要有多个水泵出水口并使各 个出水口有不同的压力值时，必须设置多台水泵、电动机，或复杂的管路、 阀门和控制设备， 这样必然带来设备数量增加， 控制复杂， 体积、 重量增 加， 造成设备采购成本提高、 整个系统可靠性差和不利于车辆安装使用的 缺点。
实用新型内容
为了解决上述现有车用水泵和配套电动机同时使用时， 既要满足电动 机能使用两种不同的转速， 水泵有多个出水口并使各个出水口压力值不同， 又要克服因设备数量增加， 控制复杂， 体积、 重量增加， 造成设备采购成 本提高、 整个系统可靠性差和不利于车辆安装使用的这些技术问题， 本实 用新型提供一种带有双换向器的永磁直流电动机的水泵， 水泵设置有第一 出水口和第二出水口， 同时配套一种在相同电压下可以实现一台电动机达 到两种不同转速和转向的电动机， 实现水泵双向高低压出水， 并使水泵与 配套电动机在整体结构上简单和轻便。
本实用新型解决以上技术问题所采用的技术方案是： 一种带有双换向 器的永磁直流电动机的水泵， 包括水泵、 电动机； 所述水泵包括泵壳、 泵 盖、 叶轮， 泵壳内安装有电动机， 电动机转轴和叶轮轴向安装， 叶轮设置 在泵壳和泵盖之间的结合腔内， 叶轮和泵盖上的进水口同轴线对应安装， 所述电动机包括机壳、 左端盖、 右端盖、 转轴、 磁钢、 铁芯、 内绕组、 外 绕组， 在机壳两端设置左端盖和右端盖， 在机壳内设置有转轴， 转轴的中 部设置有铁芯， 在机壳的内壁设置有磁钢与铁芯相对， 其特征在于： 所述 水泵在结合腔处的泵壳上设置有第一出口和第二出口， 泵盖上对应第一出 口和第二出口位置也设置有第一出水口和第二出水口， 第一出口和第二出 口与泵盖上的第一出水口和第二出水口各自对应连接， 泵盖上第一出水口 和第二出水口之间设置一片膜片； 所述电动机在同一铁芯上先后分别绕制 两层不同参数的内绕组和外绕组， 内绕组和外绕组分别连接安装在转轴上 的左换向器和右换向器， 在左端盖和右端盖上分别设置有左碳刷与右碳刷， 左换向器和右换向器的一端穿装在左碳刷与右碳刷的中心孔内， 在左碳刷 与右碳刷的外缘圆盘面向左端盖和右端盖分别引出有左接线片和右接线 片； 水泵和电动机通过叶轮和电动机转轴轴向连接， 水泵设置有第一出水 口和第二出水口， 配合一台所述的可以逆时针和顺时针方向运转， 又能够 提供两种不同转速的电动机， 通过电动机不同的转速对膜片施加不同的压 力， 通过膜片分别闭合第一出水口和第二出水口， 从而实现水泵双向高低 压出水。
本实用新型通过提供一种带有双换向器的永磁直流电动机的水泵， 通 过所述电动机和水泵的配合， 在实现水泵双向高低压出水的同时， 还具有 使水泵与配套电动机在整体结构上简单和轻便， 减少设备采购使用成本， 提高系统运转可靠性， 利于车辆安装使用的优点和有益效果。
附图说明
下面结合附图和实施例对本实用新型进一步说明。
图 1是现有永磁直流电动机结构示意图。
图 2是现有永磁直流电动机转子左视图。
图 3是本实用新型电动机的结构示意图。
图 4是本实用新型电动机的转子左视图。
图 5是本实用新型电动机的电路示意图。
图 6是本实用新型水泵和电动机装配的结构位置示意图。
图 7是本实用新型泵壳和泵盖结合腔（18) 的 A向示意图。
图中： 1-机壳， 2-1-左端盖， 2-2-右端盖， 3-转轴， 4-铁芯， 5-磁钢， 6-绕组， 6-1-内绕组， 6-2-外绕组， 7-1-左换向器， 7- 2-右换向器， 8-1- 左碳刷， 8-2-右碳刷， 9-1-左接线片， 9-2-右接线片， 10-电源， 11-电动 机， 12-泵壳， 13-泵盖， 14-叶轮， 15-密封圈， 16-进水口， 17-开关， 18- 结合腔， 19-第一出口， 20-第二出口， 21-第一出水口， 22-第二出水口， 23-膜片 具体实施方式
本实用新型一种带有双换向器的永磁直流电动机的水泵的具体实施 例：
如图 6所示， 电动机 11设置在泵壳 12内， 水泵和电动机 11通过叶轮 14和电动机转轴 3轴向连接， 叶轮 14通过凹凸面套接在电动机转轴 3上， 电动机 11由泵壳 12包裹后卡扣连接固定， 使电动机 11与水泵成一整体。
如图 6、图 7所示，所述水泵的泵壳 12、泵盖 13、叶轮 14由塑料制成， 电动机转轴 3同叶轮 14轴向连接处用密封圈 15密封，在泵壳 12和泵盖 13 之间形成一结合腔 18， 结合腔 18由泵壳 12和泵盖 13通过卡扣连接固定， 叶轮 14设置在结合腔 18内， 叶轮 14与泵盖 13上的轴向进水口 16同轴线 对应安装。 如图 7所示， 在水泵结合腔 18处的泵壳 12上沿切线方向同方 向水平设置有第一出口 19和第二出口 20，泵盖 13上对应第一出口 19和第 二出口 20位置也设置有第一出水口 21和第二出水口 22，第一出口 19和第 二出口 20与泵盖 13上的第一出水口 21和第二出水口 22各自对应连接， 泵盖 13上第一出水口 21和第二出水口 22之间设置一片膜片 23， 膜片 23 周边缘通过泵盖 13的第一出水口 21和第二出水口 22相互组合、卡扣压紧 密封和固定， 使第一出水口 21和第二出水口 22相互分隔， 膜片 23选用圆 形， 用硅橡胶材料制成， 也可用其它橡胶材料替代， 通过电动机 11和水泵 的配合， 水泵内叶轮 14逆时针高速转动， 液体压力增加使膜片 23中部产 生位移，关闭常开的第一出水口 21同时打开常闭的第二出水口 22，使第一 出水口 21和第二出水口 22可以相互切换使用。 如图 1、图 2所示，普通永磁直流电动机使用单一铁芯 4和单一换向结 构， 铁芯 4上绕制有绕组 6， 相同电压下只能提供单一的转速， 如图 3、 图 4所示的一种带有双换向器的永磁直流电动机 11，具有机壳 1，在机壳 1两 端设置左端盖 2-1和右端盖 2-2， 在机壳 1内设置有转轴 3， 转轴 3的中部 设置有铁芯 4， 在机壳 1的内壁设置有磁钢 5与铁芯 4相对， 在同一铁芯 4 上先后分别绕制两层不同参数的内绕组 6-1和外绕组 6-2，内绕组 6-1和外 绕组 6-2分别连接安装在转轴 3上的左换向器 7-1和右换向器 7-2，在左端 盖 2-1和右端盖 2-2上分别设置有左碳刷 8-1与右碳刷 8-2， 左换向器 7-1 和右换向器 7-2的一端穿装在左碳刷 8-1与右碳刷 8-2的中心孔内， 在左 碳刷 8-1与右碳刷 8-2的外缘圆盘面向左端盖 2-1和右端盖 2-2分别引出 有左接线片 9-1和右接线片 9 - 2。
叶轮 14通过电动机转轴 3带动高速旋转， 其中的液体随着叶轮 14一 起旋转， 在离心力的作用下， 飞离叶轮 14向外射出， 射出的液体在泵壳扩 散， 速度逐渐变慢， 压力逐渐增加， 然后从水泵的第一出水口 21或第二出 水口 22流出， 此时， 在叶轮中心处由于液体被甩向周围而形成既没有空气 又没有液体的真空低压区， 水箱中的液体在池面大气压的作用下， 经水泵 泵盖 13上的进水口 16流入水泵内， 液体就是这样连续不断地从水箱中被 抽吸上来又连续不断地从水泵第一出水口 21或第二出水口流出 22; 其中， 水泵第一出水口 21为常开状态， 为低压出水口， 当电动机 11带动叶轮 14 逆时针旋转时， 液体通过第一出水口 21流出泵体， 第二出水口 22为常闭 状态， 为高压出水口， 当电动机 11转向改变为顺时针时， 叶轮 14转向随 之变化， 由于此时转速高、 压力大， 液体推动膜片 23关闭第一出水口 21， 打开第二出水口 22，液体从第二出水口 22流出，从而实现水泵双向高低压 出水； 与水泵配套使用的电动机 11通过在同一铁芯 4上先后分别绕制两层 不同参数的内绕组 6-1和外绕组 6-2,内绕组 6-1和外绕组 6-2分别连接安 装在转轴 3上的左换向器 7-1和右换向器 7-2， 在左端盖 2-1和右端盖 2 - 2 上分别设置有左碳刷 8-1与右碳刷 8-2，左换向器 7-1和右换向器 7-2的一 端穿装在左碳刷 8-1与右碳刷 8-2的中心孔内，在左碳刷 8-1与右碳刷 8 - 2 的外缘圆盘面向左端盖 2-1和右端盖 2-2分别引出有左接线片 9-1和右接 线片 9-2， 使用时， 通过电动机 11外部开关 17使直流电源 10分别流经由 铁芯 4、内绕组 6-1、左换向器 7-1和左碳刷 8-1相联的回路或者由铁芯 4、 外绕组 6-2、 右换向器 7-1和右碳刷 8-1相联的回路， 由磁钢 5提供励磁， 使得电动机转轴 3可以分别按照逆时针和顺时针方向进行运转， 通过内外 绕组匝数的不同继而又使电动机 11提供两种不同的转速， 如图 5所示，电 动机 11使用时， 通过外部控制开关 17使直流电源 10分别流经由铁芯 4、 内绕组 6-1、左换向器 7-1和左碳刷 8-1相连接的回路或者由铁芯 4、 外绕 组 6-2、右换向器 7-2和右碳刷 8-2相连接的回路， 由磁钢 5'提供励磁， 使 得电动机转轴 3可以分别按照逆时针和顺时针方向进行运转， 通过内外绕 组匝数的不同又使电动机 11能够提供两种不同的转速， 同所述水泵配合使 用后， 实现水泵双向高低压出水。

Claims

权 利 要 求
1、 一种带有双换向器的永磁直流电动机的水泵， 包括水泵、 电动机 (11)； 所述水泵包括泵壳 （12)、 泵盖 （13)、 叶轮（14)， 泵壳 （12) 内 安装电动机（11)， 电动机转轴 （3)和叶轮（14) 轴向安装， 叶轮 （14) 设置在泵壳（12)和泵盖 （13) 之间的结合腔 （18) 内， 叶轮 （14)和泵 盖 （13)上的进水口 （16) 同轴线对应安装； 所述电动机（11)包括机壳 (1)、 左端盖 （2-1)、 右端盖 （2-2)、 转轴 （3)、 磁钢 （5)、 铁芯 （4)、 内绕组（6-1)、 外绕组（6-2)， 在机壳（1)两端设置左端盖（2-1)、 右端 盖 （2-2)， 在机壳（1) 内设置有转轴（3)， 转轴 （3) 的中部设置有铁芯 (4)， 在机壳（1)的内壁设置有磁钢（5)与铁芯（4)相对； 其特征在于： 所述水泵在结合腔（18)处的泵壳（12)上设置有第一出口 （19)和 第二出口 （20)， 泵盖（13)上对应第一出口 （19)和第二出口 （20)位置 也设置有第一出水口 （21)和第二出水口 （22)， 第一出口 （19)和第二出 口 （20)与泵盖上的第一出水口 （21)和第二出水口 （22)各自对应连接， 泵盖（12)上第一出水口（21)和第二出水口（22)之间设置一片膜片（23); 所述电动机在同一铁芯（4) 上先后分别绕制两层不同参数的内绕组 (6-1)和外绕组（6-2)， 内绕组（6-1)和外绕组（6-2)分别连接安装在 转轴（3)上的左换向器（7-1)和右换向器（7-2)， 在左端盖（2-1)和右 端盖（2-2)上分别设置有左碳刷（8-1)与右碳刷（8-2)， 左换向器（7 - 1) 和右换向器（7-2) 的一端穿装在左碳刷 （8-1)与右碳刷 （8-2) 的中心孔 内， 在左碳刷 （8-1)与右碳刷 （8-2) 的外缘圆盘面向左端盖（2-1)和右 端盖（2-2)分别引出有左接线片 （9-1)和右接线片 （9-2)。
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