WO2022110465A1 - 微型水泵 - Google Patents

微型水泵 Download PDF

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Publication number
WO2022110465A1
WO2022110465A1 PCT/CN2020/140099 CN2020140099W WO2022110465A1 WO 2022110465 A1 WO2022110465 A1 WO 2022110465A1 CN 2020140099 W CN2020140099 W CN 2020140099W WO 2022110465 A1 WO2022110465 A1 WO 2022110465A1
Authority
WO
WIPO (PCT)
Prior art keywords
water pump
rotor
fixing
impeller
stator
Prior art date
Application number
PCT/CN2020/140099
Other languages
English (en)
French (fr)
Inventor
许德涛
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声光电科技(常州)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 瑞声声学科技(深圳)有限公司, 瑞声光电科技(常州)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2022110465A1 publication Critical patent/WO2022110465A1/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
    • F04D29/40—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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0673—Units comprising pumps and their driving means the pump being electrically driven the motor being of the inside-out type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F04D13/0633—Details of the bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • 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
    • 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
    • F04D29/406—Casings; Connections of working fluid 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
    • F04D5/00—Pumps with circumferential or transverse flow
    • F04D5/002—Regenerative pumps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2211/00—Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components
    • H02K2211/03—Machines characterised by circuit boards, e.g. pcb

Definitions

  • the invention relates to the field of fluid machinery, in particular to a micro water pump.
  • Micro water pumps usually used to lift liquids, transport liquids or increase the pressure of liquid micro-devices called micro water pumps, are currently widely used in new energy vehicles, computer water cooling systems, solar fountains, desktop fountains and other fields.
  • the related art miniature water pump includes a casing, a stator fixed to the casing, an impeller disposed in the casing, a rotating shaft disposed in the casing and supporting the rotation of the impeller, and a rotor fixed on the impeller and spaced from the stator at a certain distance.
  • the rotor of the related art micro water pump is directly glued to the impeller. In this way, when the glue is not completely dry, the glue easily overflows to the inner wall of the rotor through the gap between the rotor and the impeller, thereby causing interference between the rotor and other devices.
  • the purpose of the present invention is to provide a miniature water pump that can avoid the interference of components caused by overflowing glue during the assembly process, and is more reliable.
  • a miniature water pump which includes a housing and a driving mechanism, the housing has a receiving portion, a liquid inlet communicating with the containing portion, and a liquid outlet communicating with the containing portion
  • the driving mechanism is installed on the housing to drive the liquid to enter the receiving portion from the liquid inlet and discharge from the liquid outlet
  • the driving mechanism includes a rotating shaft, an impeller disposed in the receiving portion, a The rotor of the impeller and the stator installed on the base and used to drive the rotor to rotate
  • the impeller includes a support portion with a circular cross-section, a mounting portion with a rotating shaft hole extending from the middle of the support portion part, a fixing part extending from the peripheral edge of the supporting part, a plurality of blades extending from the fixing part in a direction away from the mounting part, and a recess formed from the junction of the supporting part and the fixing part
  • the extending direction of the mounting part and the fixing part is
  • the glue storage tank includes a bottom surface of the tank
  • the rotor includes a first surface close to the support portion, and the orthographic projection of the bottom surface of the tank facing the first surface completely falls on the first surface.
  • the rotor further includes a second surface disposed opposite to the first surface, the fixing portion includes a third surface away from the support portion, and the second surface and the third surface are on the same plane .
  • the rotor further includes an inner wall surface and an outer wall surface connecting the first surface and the second surface, and the outer wall surface is fixed to the inner wall of the fixing portion by gluing.
  • the casing includes a base and an upper cover assembled with the base, one of the base and the upper cover is provided with a sealing groove surrounding the receiving portion, and the casing further includes at least a partially embedded A sealing ring arranged in the sealing groove.
  • the base includes a body portion and a stator fixing groove recessed from a surface of the body portion away from the upper cover to a direction close to the upper cover, and the stator is embedded in the stator fixing groove.
  • the base further includes a mounting groove formed by being recessed from the surface of the body portion away from the upper cover to the direction close to the upper cover near the stator fixing groove, and the micro water pump further includes a mounting groove installed on the mounting groove.
  • the circuit board in the slot is electrically connected with the stator through a cable.
  • the glue storage tank is arranged at the junction of the support part and the fixed part, and the rotor is fixedly connected with the inner wall of the fixed part, and is connected with the fixed part.
  • the supporting parts are arranged at intervals, which can effectively prevent the glue overflowing between the rotor and the fixing part from being squeezed into the inner wall of the rotor during the assembly process of the micro water pump, thereby avoiding the rotor and other devices. Interference occurs.
  • FIG. 1 is a schematic three-dimensional structure diagram of a micro water pump provided by the present invention.
  • FIG. 2 is an exploded schematic diagram of the three-dimensional structure of the micro water pump provided by the present invention.
  • FIG. 3 is a schematic exploded view of the three-dimensional structure of the micro water pump provided by the present invention from another angle.
  • FIG. 4 is a cross-sectional view of the three-dimensional structure of the impeller and the rotor in the micro water pump provided by the present invention.
  • the present invention provides a micro water pump 100 .
  • the micro water pump 100 includes a casing 10 , a driving mechanism 20 accommodated in the casing 10 , and a circuit board 30 disposed on the casing 10 .
  • the housing 10 has a housing portion 101, a liquid inlet 102 communicating with the housing portion 101, and a liquid outlet 103 communicating with the housing portion 101.
  • the driving mechanism 20 is mounted on the housing 10 to drive liquid from The liquid inlet 102 enters the receiving portion 101 and is discharged from the liquid outlet 103 .
  • the housing 10 includes a base 11 , an upper cover 12 assembled with the base 11 , and a sealing ring 13 .
  • the receiving portion 101 is jointly formed by the base 11 and the upper cover 12 .
  • one of the base 11 and the upper cover 12 is provided with a sealing groove 104 surrounding the receiving portion 101 , and the sealing ring 13 is at least partially embedded in the sealing groove 104 to prevent the The liquid in the accommodating portion 101 leaks out from the gap between the upper cover 12 and the base 11 .
  • the base 11 includes a main body portion 111 , a stator fixing slot 112 recessed from the surface of the main body portion 111 away from the upper cover 12 to the direction close to the upper cover 12 , and a stator fixing slot 112 adjacent to the stator fixing slot 112 .
  • a surface of the body portion 111 away from the upper cover 12 is recessed toward a mounting groove 113 formed in a direction close to the upper cover 12 .
  • the circuit board 30 is installed in the installation slot 113 , and the circuit board 30 is electrically connected with the driving mechanism 20 through a cable.
  • the driving mechanism 20 includes a rotating shaft 21 , an impeller 22 disposed on the receiving portion 101 , a rotor 23 mounted on the impeller 22 , and a stator 24 mounted on the base 11 and used to drive the rotor 23 to rotate.
  • the rotating shaft 21 includes a first end surface 211 and a second end surface 212 that are relatively parallel to each other, a side wall surface 213 connecting the first end surface 211 and the second end surface 212 , and a side wall surface 213 adjacent to the first end surface 213 .
  • One end of the end surface 211 is formed with a plurality of fixing grooves 214 recessed toward the axis.
  • One end of the rotating shaft 21 close to the first end surface 211 is embedded in the base 11 , and a gap is left between the second end surface 212 and the upper cover 12 .
  • the second end surface 212 may also be in contact with the upper cover 12 .
  • the fixing groove 214 is used for injection molding of the rotating shaft 21 and the base 11 , and the base 11 can be partially embedded in the fixing groove 214 , so that the connection between the rotating shaft 21 and the base 11 is more firm.
  • a plurality of the fixing grooves 214 have the same shape, and the plurality of the fixing grooves 214 are evenly distributed along the circumferential direction of the rotating shaft 21 .
  • the impeller 22 includes a support portion 221 with a circular cross-section, a mounting portion 222 with a shaft hole 2221 extending from the middle of the support portion 221, a fixing portion 223 extending from the periphery of the support portion 221, A plurality of blades 224 extend from the fixing portion 223 in a direction away from the mounting portion 222 , and a glue storage groove 225 is recessed from the junction of the supporting portion 221 and the fixing portion 223 .
  • the extending directions of the mounting portion 222 and the fixing portion 223 are the same.
  • the rotor 23 is glued and fixed to the inner wall of the fixing portion 223 and is spaced from the supporting portion 221 .
  • the rotating shaft 21 passes through the rotating shaft hole 2221 , so that the impeller 22 can rotate around the rotating shaft 21 .
  • the fixing portion 223 includes a third surface 2231 away from the supporting portion 221 .
  • the glue storage tank 225 includes a tank bottom surface 2251 .
  • the rotor 23 includes a first surface 231 close to the support portion 221 , a second surface 232 opposite to the first surface 231 , and an inner wall surface 233 connecting the first surface 231 and the second surface 232 with the outer wall surface 234.
  • the orthographic projection of the groove bottom surface 2251 to the first surface 231 completely falls on the first surface 231 .
  • This arrangement can ensure that the glue overflowing between the rotor 23 and the impeller 22 is squeezed into the glue storage tank 225 during the assembly process, which improves the reliability of the micro water pump 100 .
  • the second surface 232 and the third surface 2231 are arranged on the same plane.
  • the outer wall surface 234 is fixed to the inner wall of the fixing portion 223 by gluing.
  • the stator 24 is embedded in the stator fixing slot 112 .
  • the circuit board 30 is electrically connected to the stator 24 through cables.
  • the circuit board 30 supplies alternating current to the stator 24.
  • the stator 24 According to the principle of electromagnetic induction, the stator 24 generates a rotating magnetic field, and the rotor 23 is subjected to the action of ampere force in the rotating magnetic field. When rotation occurs, the rotating rotor 23 drives the impeller 22 to rotate.
  • the liquid enters the receiving portion 101 from the liquid inlet 102, rotates at a high speed and performs centrifugal motion under the impeller 22, and when the liquid reaches the liquid outlet 103, the liquid is thrown out from the liquid outlet 103, and the liquid is thrown away
  • the pressure in the accommodating portion 101 is reduced, which is much lower than the atmospheric pressure, and the external fluid is replenished into the accommodating portion 101 from the liquid inlet 102 under the action of atmospheric pressure, and the above-mentioned actions are repeatedly realized. , to achieve liquid transport.
  • the glue storage tank at the junction of the support portion and the fixing portion, and defining the rotor to be fixedly connected to the inner wall of the fixing portion, and to be spaced from the support portion, During the assembly process of the micro water pump, the glue overflowing between the rotor and the fixing portion can be effectively prevented from being squeezed into the inner wall of the rotor, thereby preventing the rotor from interfering with other devices.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种微型水泵（100）包括外壳（10）和驱动机构（20），外壳（10）具有收容部（101）、连通收容部（101）的进液口（102）及连通收容部（101）的出液口（103），驱动机构（20）安装于外壳（10）以驱动液体从进液口（102）进入收容部（101）并从出液口（103）排出；驱动机构（20）包括转轴（21）、设置于收容部（101）的叶轮（22）、安装于叶轮（22）的转子（23）及安装于底座（11）并用于驱动转子（23）转动的定子（24），叶轮（22）包括横截面呈圆形的支撑部（221）、自支撑部（221）的中部延伸出的具有转轴孔（2221）的安装部（222）、自支撑部（221）的周缘延伸出的固定部（223）、自固定部（223）向远离安装部（222）的方向延伸出的多个叶片（224）及自支撑部（221）与固定部（223）交界处凹陷形成的储胶槽（225），安装部（222）与固定部（223）的延伸方向相同，转子（23）与固定部（223）的内壁胶合固定并与支撑部（221）间隔设置。该微型水泵，能够避免装配过程中因溢胶造成的部件干涉，可靠性更强。

Description

微型水泵 技术领域
本发明涉及流体机械领域，尤其涉及一种微型水泵。
 背景技术
微型水泵，通常用于把提升液体、输送液体或使液体增加压力的微型装置称为微型水泵，目前被广泛应用于新能源汽车、电脑水冷系统、太阳能喷泉、桌面喷泉等领域。
相关技术的微型水泵包括外壳、固定于外壳的定子、设置于外壳内的叶轮、设置于外壳内并支撑叶轮旋转的转轴和固定于叶轮上并与定子相隔一定距离的转子。相关技术的微型水泵的转子直接胶合于叶轮。如此一来，在胶水未完全干透的情况下，胶水容易通过转子与叶轮的间隙溢至转子的内壁，进而造成转子与其他器件的干涉。
因此，有必要提供一种能够避免装配过程中因溢胶造成的部件干涉，可靠性更强的微型水泵来解决上述问题。
 技术问题
针对上述问题，本发明的目的在于提供一种能够避免装配过程中因溢胶造成的部件干涉，可靠性更强的微型水泵。
 技术解决方案
本发明的目的之一采用如下技术方案实现：一种微型水泵，其包括外壳和驱动机构，所述外壳具有收容部、连通所述收容部的进液口及连通所述收容部的出液口，所述驱动机构安装于所述外壳以驱动液体从所述进液口进入所述收容部并从所述出液口排出；所述驱动机构包括转轴、设置于所述收容部的叶轮、安装于所述叶轮的转子及安装于所述底座并用于驱动所述转子转动的定子，所述叶轮包括横截面呈圆形的支撑部、自所述支撑部的中部延伸出的具有转轴孔的安装部、自所述支撑部的周缘延伸出的固定部、自所述固定部向远离所述安装部的方向延伸出的多个叶片及自所述支撑部与所述固定部交界处凹陷形成的储胶槽，所述安装部与所述固定部的延伸方向相同，所述转子与所述固定部的内壁胶合固定并与所述支撑部间隔设置。
优选的，所述储胶槽包括槽底面，所述转子包括靠近所述支撑部的第一表面，所述槽底面向所述第一表面的正投影完全落在所述第一表面上。
优选的，所述转子还包括与所述第一表面相对设置的第二表面，所述固定部包括远离所述支撑部的第三表面，所述第二表面与所述第三表面处于同一平面。
优选的，所述转子还包括连接所述第一表面与所述第二表面的内壁面与外壁面，所述外壁面通过胶合固定于所述固定部的内壁。
优选的，所述外壳包括底座及与所述底座组配的上盖，所述底座和所述上盖中的一者设有环绕所述收容部的密封槽，所述外壳还包括至少部分嵌设于所述密封槽内的密封圈。
优选的，所述底座包括本体部及自所述本体部远离所述上盖的表面向靠近所述上盖方向凹陷形成的定子固定槽，所述定子嵌设于所述定子固定槽内。
优选的，所述底座还包括靠近所述定子固定槽自所述本体部远离所述上盖的表面向靠近所述上盖方向凹陷形成的安装槽，所述微型水泵还包括安装于所述安装槽内的电路板，所述电路板与所述定子通过线缆电连接。
 有益效果
与相关技术相比，本发明提供的微型水泵，通过在所述支撑部与所述固定部交界处设置所述储胶槽，并限定所述转子与所述固定部的内壁固定连接、与所述支撑部间隔设置，在所述微型水泵的装配过程中，能够有效避免所述转子与所述固定部之间溢出的胶水被挤入所述转子的内壁，进而避免了所述转子与其他器件发生干扰。
 附图说明
图1为本发明提供的微型水泵的立体结构示意图。
图2为本发明提供的微型水泵的立体结构分解示意图。
图3为本发明提供的微型水泵另一个角度的立体结构分解示意图。
图4为本发明提供的微型水泵中叶轮与转子的立体结构剖视图。
 本发明的实施方式
下面结合附图和实施方式对本发明作进一步说明。
需要说明的是，本发明实施例中所有方向性指示（诸如上、下、左、右、前、后、内、外、顶部、底部……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
还需要说明的是，当元件被称为“固定于”或“设置于”另一个元件上时，该元件可以直接在另一个元件上或者可能同时存在居中元件。当一个元件被称为“连接”另一个元件，它可以是直接连接另一个元件或者可能同时存在居中元件。
请结合参阅图1至图4，本发明提供了一种微型水泵100，所述微型水泵100包括外壳10、收容于所述外壳10的驱动机构20及设置于所述外壳10上的电路板30。其中，所述外壳10具有收容部101、连通所述收容部101的进液口102及连通所述收容部101的出液口103，所述驱动机构20安装于所述外壳10以驱动液体从所述进液口102 进入所述收容部101并从所述出液口103排出。
所述外壳10包括底座11、与所述底座11组配的上盖12及密封圈13。所述收容部101由所述底座11和所述上盖12共同围成。其中，所述底座11和所述上盖12中的一者设有环绕所述收容部101的密封槽104，所述密封圈13至少部分嵌设于所述密封槽104内，以防止所述收容部101中的液体从所述上盖12与所述底座11之间的缝隙泄漏出去。
所述底座11包括本体部111、自所述本体部111远离所述上盖12的表面向靠近所述上盖12方向凹陷形成的定子固定槽112、及靠近所述定子固定槽112自所述本体部111远离所述上盖12的表面向靠近所述上盖12方向凹陷形成的安装槽113。其中，所述电路板30安装于所述安装槽113内，所述电路板30与所述驱动机构20通过线缆电连接。
所述驱动机构20包括转轴21、设置于所述收容部101的叶轮22、安装于所述叶轮22的转子23及安装于所述底座11并用于驱动所述转子23转动的定子24。
所述转轴21包括相对平行设置的第一端面211与第二端面212、连接所述第一端面211与所述第二端面212的侧壁面213、及自所述侧壁面213靠近所述第一端面211的一端向轴心凹陷形成的多个固定槽214。所述转轴21靠近所述第一端面211的一端嵌设于所述底座11，所述第二端面212与所述上盖12之间留有间隙。当然，在不是对本发明的限定，所述第二端面212也可以与所述上盖12抵接。
所述固定槽214用于所述转轴21与所述底座11注塑时，底座11可以部分嵌进所述固定槽214，使得所述转轴21与所述底座11之间的连接更为牢固。
优选的，多个所述固定槽214形状相同，且多个所述固定槽214沿所述转轴21的周向均匀分布。
所述叶轮22包括横截面呈圆形的支撑部221、自所述支撑部221的中部延伸出的具有转轴孔2221的安装部222、自所述支撑部221的周缘延伸出的固定部223、自所述固定部223向远离所述安装部222的方向延伸出的多个叶片224及自所述支撑部221与所述固定部223交界处凹陷形成的储胶槽225。
所述安装部222与所述固定部223的延伸方向相同。所述转子23与所述固定部223的内壁胶合固定并与所述支撑部221间隔设置。在所述微型水泵100的装配过程中，所述转轴21穿过所述转轴孔2221，使得所述叶轮22能够绕所述转轴21进行旋转。
所述固定部223包括远离所述支撑部221的第三表面2231。
所述储胶槽225包括槽底面2251。
所述转子23包括靠近所述支撑部221的第一表面231、与所述第一表面231相对设置的第二表面232、连接所述第一表面231与所述第二表面232的内壁面233与外壁面234。
所述槽底面2251向所述第一表面231的正投影完全落在所述第一表面231上。如此设置，能够保证装配过程中，所述转子23与所述叶轮22之间的溢胶被挤入所述储胶槽225内，提升了所述微型水泵100的可靠性。
同时，为了保证所述微型水泵100的结构稳定性，节约所述微型水泵100的内部空间，在本实施方式中，设置所述第二表面232与所述第三表面2231处于同一平面。
所述外壁面234通过胶合固定于所述固定部223的内壁。
所述定子24嵌设于所述定子固定槽112内。所述电路板30与所述定子24通过线缆电连接。
在所述微型水泵100的工作过程中，所述电路板30给所述定子24通交流电，根据电磁感应原理，所述定子24产生旋转磁场，所述转子23在旋转磁场中受安培力的作用发生旋转，旋转的所述转子23带动所述叶轮22旋转。液体从所述进液口102进入所述收容部101，在所述叶轮22的推动下高速旋转并做离心运动，液体到达所述出液口103时从出液口103甩出，液体被甩出后，所述收容部101中的压强减小，远小于大气压力，外界的流体在大气压强的作用下从所述进液口102补充进所述收容部101中，重复地实现上述的动作，实现液体的输送。
本发明提供的微型水泵，通过在所述支撑部与所述固定部交界处设置所述储胶槽，并限定所述转子与所述固定部的内壁固定连接、与所述支撑部间隔设置，在所述微型水泵的装配过程中，能够有效避免所述转子与所述固定部之间溢出的胶水被挤入所述转子的内壁，进而避免了所述转子与其他器件发生干扰。
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (7)

  1. 一种微型水泵，其特征在于，其包括外壳和驱动机构，所述外壳具有收容部、连通所述收容部的进液口及连通所述收容部的出液口，所述驱动机构安装于所述外壳以驱动液体从所述进液口进入所述收容部并从所述出液口排出；所述驱动机构包括转轴、设置于所述收容部的叶轮、安装于所述叶轮的转子及安装于所述底座并用于驱动所述转子转动的定子，所述叶轮包括支撑部、自所述支撑部的中部延伸出的具有转轴孔的安装部、自所述支撑部的周缘延伸出的固定部、自所述固定部向远离所述安装部的方向延伸出的多个叶片及自所述支撑部与所述固定部交界处凹陷形成的储胶槽，所述安装部与所述固定部的延伸方向相同，所述转子与所述固定部的内壁胶合固定并与所述支撑部间隔设置。
  2. 根据权利要求1所述的微型水泵，其特征在于，所述储胶槽包括槽底面，所述转子包括靠近所述支撑部的第一表面，所述槽底面向所述第一表面的正投影完全落在所述第一表面上。
  3. 根据权利要求2所述的微型水泵，其特征在于，所述转子还包括与所述第一表面相对设置的第二表面，所述固定部包括远离所述支撑部的第三表面，所述第二表面与所述第三表面处于同一平面。
  4. 根据权利要求3所述的微型水泵，其特征在于，所述转子还包括连接所述第一表面与所述第二表面的内壁面与外壁面，所述外壁面通过胶合固定于所述固定部的内壁。
  5. 根据权利要求1所述的微型水泵，其特征在于，所述外壳包括底座及与所述底座组配的上盖，所述底座和所述上盖中的一者设有环绕所述收容部的密封槽，所述外壳还包括至少部分嵌设于所述密封槽内的密封圈。
  6. 根据权利要求5所述的微型水泵，其特征在于，所述底座包括本体部及自所述本体部远离所述上盖的表面向靠近所述上盖方向凹陷形成的定子固定槽，所述定子嵌设于所述定子固定槽内。
  7. 根据权利要求6所述的微型水泵，其特征在于，所述底座还包括靠近所述定子固定槽自所述本体部远离所述上盖的表面向靠近所述上盖方向凹陷形成的安装槽，所述微型水泵还包括安装于所述安装槽内的电路板，所述电路板与所述定子通过线缆电连接。
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