WO2022110293A1 - 微型水泵及电子设备 - Google Patents

微型水泵及电子设备 Download PDF

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Publication number
WO2022110293A1
WO2022110293A1 PCT/CN2020/134681 CN2020134681W WO2022110293A1 WO 2022110293 A1 WO2022110293 A1 WO 2022110293A1 CN 2020134681 W CN2020134681 W CN 2020134681W WO 2022110293 A1 WO2022110293 A1 WO 2022110293A1
Authority
WO
WIPO (PCT)
Prior art keywords
annular
base
upper cover
water pump
inner cavity
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2020/134681
Other languages
English (en)
French (fr)
Inventor
许德涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Technologies Holdings Shenzhen Co Ltd
AAC Microtech Changzhou Co Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
AAC Microtech Changzhou Co Ltd
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 AAC Acoustic Technologies Shenzhen Co Ltd, AAC Microtech Changzhou Co Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Publication of WO2022110293A1 publication Critical patent/WO2022110293A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of 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
    • 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
    • F04D13/0686—Mechanical details of the pump control unit
    • 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
    • F04D29/086—Sealings 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
    • F04D29/18—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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • 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
    • F04D29/24—Vanes
    • F04D29/242—Geometry, shape
    • 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
    • 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
    • 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
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
    • H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds

Definitions

  • the present application relates to the field of fluid machinery, in particular to micro water pumps and electronic equipment.
  • a sealing ring is usually sandwiched between the base of the pump body and the upper cover to achieve sealing.
  • the existing sealing ring between the base and the upper cover of the water pump has poor sealing effect and is prone to leakage problems.
  • One of the objectives of the present application is to provide a miniature water pump, which has better sealing effect.
  • the second purpose of this application is to provide an electronic device, which adopts the above-mentioned micro water pump.
  • a miniature water pump comprising a pump body and a driving mechanism, the pump body has an inner cavity, a liquid inlet communicating with the inner cavity, and a liquid outlet communicating with the inner cavity, and the driving mechanism is mounted on the pump body to drive the liquid into the inner cavity from the liquid inlet and discharge from the liquid outlet;
  • the pump body includes a base, an upper cover and a sealing ring, one of the base and the upper cover is provided with a first annular groove surrounding the inner cavity, and the other of the base and the upper cover is provided with a first annular groove surrounding the inner cavity.
  • There is at least one annular waterproof step the annular waterproof step is embedded in the first annular groove, and the sealing ring is arranged in the first annular groove and sandwiched between the base and the upper cover. between.
  • the number of the annular waterproof step is one, and the sealing ring surrounds the outer circumference of the annular waterproof step.
  • the driving mechanism includes an impeller, a stator and a rotor, the impeller is arranged in the inner cavity, the base or the upper cover is provided with a rotating shaft, and the impeller is rotatably connected to the rotating shaft,
  • the rotor is mounted on the impeller, the stator is mounted on the base, and the stator is used to drive the rotor to rotate.
  • the impeller includes a mounting portion, an annular portion and a blade, the mounting portion is arranged on the inner side of the annular portion, the mounting portion is rotatably connected to the rotating shaft, and the blade is arranged on the annular portion the outer side wall of the part;
  • the rotor is an annular magnet mounted on the annular portion or the mounting portion.
  • the rotor is fixed to the inner side wall of the annular portion or the outer side wall of the mounting portion by gluing.
  • a side of the base facing away from the upper cover is provided with a second annular groove, and the stator is embedded in the second annular groove.
  • the micro water pump further includes a circuit board mounted on the base, and the circuit board is electrically connected to the stator through a cable.
  • a side of the base facing away from the upper cover is provided with an installation groove, and the circuit board is embedded in the installation groove.
  • a wiring groove is provided on the side of the base facing away from the upper cover, and the wiring groove communicates with the second annular groove and the installation groove, and the cables are arranged on the in the wireway.
  • An electronic device includes a liquid-cooled heat dissipation system, and the liquid-cooled heat dissipation system includes the above-mentioned micro water pump.
  • one of the base and the upper cover is provided with a first annular groove surrounding the inner cavity, and the other of the base and the upper cover is provided with at least one annular waterproof step , the annular waterproof step is embedded in the first annular groove, the annular waterproof step can not only increase the water flow resistance, reduce the risk of water leakage when the sealing ring is not well sealed, and the cooperation between the annular waterproof step and the first annular groove can be used for The positioning between the base and the upper cover is realized, which is convenient for the assembly of the pump body.
  • FIG. 1 is a schematic structural diagram of a micro water pump proposed in an embodiment of the application from a top perspective;
  • FIG. 2 is a schematic structural diagram of a micro water pump proposed in an embodiment of the application from a bottom perspective;
  • Fig. 3 is A-A cross-sectional schematic diagram in Fig. 1;
  • Fig. 4 is the exploded schematic diagram of the structure shown in Fig. 3;
  • FIG. 5 is a schematic exploded view of a micro water pump proposed in an embodiment of the application from a top perspective;
  • FIG. 6 is an exploded schematic diagram of a micro water pump proposed in an embodiment of the application from a bottom perspective
  • FIG. 7 is a schematic structural diagram of a rotating shaft proposed by an embodiment of the application.
  • FIG. 8 is a schematic structural diagram of a micro water pump proposed by another embodiment of the application.
  • FIG. 9 is a schematic connection diagram of a partial structure of an electronic device according to an embodiment of the present application.
  • an embodiment of the present application proposes a miniature water pump, including a pump body 10 and a driving mechanism 20 .
  • the pump body 10 has an inner cavity 101 , a liquid inlet 102 communicating with the inner cavity 101 , and a communication cavity with the inner cavity 101 .
  • the driving mechanism 20 is installed on the pump body 10 to drive the liquid to enter the inner cavity 101 from the liquid inlet 102 and discharge from the liquid outlet 103 .
  • the pump body 10 includes a base 11, an upper cover 12 and a sealing ring 13, the upper cover 12 is provided with a first annular groove 121 surrounding the inner cavity 101, the base 11 is provided with an annular waterproof step 111, and the annular waterproof step 111 is embedded in the first annular groove 121.
  • the sealing ring 13 is disposed in the first annular groove 121 and sandwiched between the base 11 and the upper cover 12 .
  • first annular groove 121 and the annular waterproof step 111 can be interchanged, that is, the first annular groove 121 can be provided on the base 11 and the annular waterproof step 111 can be provided on the upper cover 12 . It should also be noted that the number of annular waterproof steps 111 is not limited to one, and may also be more than one, which is specifically determined according to actual design requirements.
  • one of the base 11 and the upper cover 12 is provided with a first annular groove 121 surrounding the inner cavity 101
  • the other of the base 11 and the upper cover 12 is provided with at least one annular waterproof step 111
  • the annular waterproof step 111 is embedded in the first annular groove 121
  • the annular waterproof step 111 can not only play the role of increasing the water flow resistance, reduce the risk of water leakage when the sealing ring 13 is poorly sealed, but also the annular waterproof step 111 and the first annular groove.
  • the cooperation of 121 can be used to realize the positioning between the base 11 and the upper cover 12 , so as to facilitate the assembly of the pump body 10 .
  • the sealing ring 13 surrounds the outer circumference of the annular waterproof step 111 .
  • This design is convenient for the installation of the sealing ring 13.
  • the sealing ring 13 can be sleeved on the outer circumference of the annular waterproof step 111, and then the sealing ring 13 and the annular waterproof step 111 can be advanced together into the first annular groove 121, and the installation is simple.
  • the sealing ring 13 may also be provided on the inner side of the annular waterproof step 111 .
  • the sealing ring 13 is sleeved on the outer circumference of one of the annular waterproof steps 111 .
  • both the first annular groove 121 and the annular waterproof step 111 are circular.
  • the first annular groove 121 and the annular waterproof step 111 may also have other shapes, which are determined according to actual design requirements.
  • the annular waterproof step 111 is integrally formed with the base 11 .
  • the driving mechanism 20 includes an impeller 21, a stator 22 and a rotor 23.
  • the impeller 21 is arranged in the inner cavity 101, the base 11 is provided with a rotating shaft 14, the impeller 21 is rotatably connected to the rotating shaft 14, and the rotor 23 is installed on the impeller 21.
  • the stator 22 is installed on the base 11, and the stator 22 is used to drive the rotor 23 to rotate.
  • the stator 22 is supplied with alternating current.
  • the stator 22 generates a rotating magnetic field
  • the rotor 23 rotates under the action of ampere force in the rotating magnetic field
  • the rotating rotor 23 drives the impeller 21 to rotate.
  • the liquid enters the inner cavity 101 from the liquid inlet 102, rotates at a high speed under the impeller 21 and performs centrifugal motion.
  • the liquid is thrown out from the liquid outlet 103.
  • stator 22 and the rotor 23 interact with each other through electromagnetic force, no direct connection is required, so there is no need to open a mounting hole communicating with the inner cavity 101 , which can prevent the fluid in the inner cavity 101 from leaking through the mounting hole.
  • a motor can also be installed in the pump body 10, the output shaft of the motor extends into the inner cavity 101 and is connected to the impeller 21, and the motor drives the impeller 21 to rotate through the output shaft.
  • the rotating shaft 14 is not limited to be provided on the base 11 , and the rotating shaft 14 can also be provided on the upper cover 12 .
  • the rotating shaft 14 is formed on the base 11 by secondary injection molding.
  • the connection between the rotating shaft 14 and the base 11 is firm, and the rotational operation of the impeller 21 is stable.
  • the impeller 21 includes a mounting portion 211 , an annular portion 212 and a vane 213 .
  • the mounting portion 211 is arranged on the inner side of the annular portion 212
  • the mounting portion 211 is rotatably connected to the rotating shaft 14
  • the vane 213 is arranged on the outer side wall of the annular portion 212
  • the rotor 23 is mounted on Ring magnet of ring portion 212 .
  • the rotor 23 is fixed to the inner side wall of the annular portion 212 by gluing.
  • the rotor 23 is not limited to be fixed on the inner side wall of the annular portion 212 by gluing, for example, the rotor 23 can also be embedded in the annular portion 212 by over-molding.
  • the side of the base 11 facing away from the upper cover 12 is provided with a second annular groove 112 , and the stator 22 is embedded in the second annular groove 112 .
  • the stator 22 will not increase the overall thickness of the pump body 10, so that the size of the pump body 10 is small.
  • the micro water pump further includes a circuit board 30 mounted on the base 11 , and the circuit board 30 is electrically connected to the stator 22 through a cable 40 .
  • a side of the base 11 facing away from the upper cover 12 is provided with an installation groove 113 , and the circuit board 30 is embedded in the installation groove 113 .
  • the circuit board 30 is accommodated in the installation groove 113 and is not exposed, which can prevent the components on the circuit board 30 from being knocked and damaged in the subsequent installation process.
  • the circuit board 30 is accommodated in the installation groove 113 .
  • the circuit board 30 will not increase the overall thickness of the pump body 10 , so that the size of the pump body 10 is small.
  • the base 11 may not be provided with the mounting groove 113 , and the circuit board 30 is directly mounted on the outer surface of the base 11 .
  • the side of the base 11 facing away from the upper cover 12 is provided with a wiring slot 114 .
  • the wiring slot 114 communicates with the second annular slot 112 and the installation slot 113 , and the cable 40 is arranged in the wiring slot 114 .
  • the cable 40 is routed in the cable groove 114 and is not exposed, so that the cable 40 can be prevented from being pulled by external force and broken.
  • the cable 40 is routed in the cable groove 114, and the cable 40 will not increase the pump.
  • the overall thickness of the body 10 makes the size of the pump body 10 small.
  • the base 11 may also not be provided with the wiring groove 114 , and the cables 40 are directly routed on the outer surface of the base 11 .
  • a recess 141 is provided on the outer side wall of one end of the rotating shaft 14 connected to the base 11 .
  • the recess 141 is used for injection molding of the rotating shaft 14 and the base 11 , and the base 11 can be partially embedded in the recess 141 , so that the rotating shaft The connection between 14 and the base 11 is stronger.
  • a plurality of recesses 141 are provided, and the plurality of recesses 141 are arranged at intervals around the axis of the rotating shaft 14 .
  • the micro water pump proposed in another embodiment of the present application is different from the micro water pump proposed in the above embodiment in that: in this embodiment, the rotor 23 ′ is installed in the Section 211'.
  • the rotor 23' is fixed to the outer side wall of the mounting portion 211' by gluing.
  • the rotor 23' can also be embedded in the mounting portion 211' by means of secondary injection molding.
  • an embodiment of the present application further proposes an electronic device, including a liquid-cooled heat dissipation system, the liquid-cooled heat dissipation system includes the above-mentioned micro water pump, and the micro water pump is used for conveying cooling liquid.
  • the electronic device further includes a controller 200 and a temperature sensor 300, the temperature sensor 300 and the circuit board 30 are electrically connected to the controller 200, the temperature sensor 300 is installed on the object that needs to be dissipated, and the temperature sensor 300 is used to detect the temperature of the object that needs to be dissipated.
  • the detected temperature value is transmitted to the controller 200, and the controller 200 controls the circuit board 30 to adjust the pulse width of the input stator 22 according to the data detected by the temperature sensor 300, thereby adjusting the rotational speed of the impeller 21 to change the flow rate of the cooling liquid, so as to achieve for better cooling effect.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

微型水泵及电子设备，其中微型水泵包括泵体(10)和驱动机构(20)，泵体(10)具有内腔(101)、连通内腔的进液口(102)及连通内腔的出液口(103)，驱动机构(20)安装于泵体(10)以驱动液体从进液口(102)进入内腔(101)并从出液口(103)排出；泵体(10)包括底座(11)、上盖(12)及密封圈(13)，底座(11)和上盖(12)中的一者设有环绕内腔(101)的第一环形槽(121)，底座(11)和上盖(12)中的另一者设有至少一个环形防水台阶(111)，环形防水台阶(111)嵌于第一环形槽(121)内，密封圈(13)设于第一环形槽(121)内且夹设于底座(11)与上盖(12)之间。环形防水台阶(111)嵌于第一环形槽(121)内，环形防水台阶(111)起到增加水流阻力的作用，降低密封圈(13)密封不良时出现漏水的风险，环形防水台阶(111)和第一环形槽(121)的配合可以实现底座(11)和上盖(12)之间的定位，便于泵体(10)的组装。

Description

微型水泵及电子设备 技术领域
本申请涉及流体机械领域，尤其涉及微型水泵及电子设备。
 背景技术
水泵泵体的底座和上盖之间通常通过夹设密封圈以实现密封，现有的水泵的底座和上盖之间的密封圈，密封效果不好，容易出现泄漏问题。
因此有必要研究一种新型的微型水泵来解决上述问题。
 技术问题
现有的水泵的底座和上盖之间的密封圈密封效果不好，容易出现泄漏。
 技术解决方案
本申请的目的之一提出一种微型水泵，其具有较好的密封效果。本申请的目的之二提出一种电子设备，该电子设备采用上述的微型水泵。
本申请的目的之一采用如下技术方案实现：
一种微型水泵，包括泵体和驱动机构，所述泵体具有内腔、连通所述内腔的进液口及连通所述内腔的出液口，所述驱动机构安装于所述泵体以驱动液体从所述进液口进入所述内腔并从所述出液口排出；
所述泵体包括底座、上盖及密封圈，所述底座和所述上盖中的一者设有环绕所述内腔的第一环形槽，所述底座和所述上盖中的另一者设有至少一个环形防水台阶，所述环形防水台阶嵌于所述第一环形槽内，所述密封圈设于所述第一环形槽内且夹设于所述底座与所述上盖之间。
作为一种改进方式，所述环形防水台阶的数量为一个，所述密封圈环绕于所述环形防水台阶的外周。
作为一种改进方式，所述驱动机构包括叶轮、定子及转子，所述叶轮设于所述内腔内，所述底座或所述上盖设有转轴，所述叶轮与所述转轴转动连接，所述转子安装于所述叶轮，所述定子安装于所述底座，所述定子用于驱动所述转子转动。
作为一种改进方式，所述叶轮包括安装部、环形部及叶片，所述安装部设于所述环形部的内侧，所述安装部与所述转轴转动连接，所述叶片设于所述环形部的外侧壁；
所述转子为安装于所述环形部或安装部的环形磁钢。
作为一种改进方式，所述转子通过胶合固定于所述环形部的内侧壁或安装部的外侧壁。
作为一种改进方式，所述底座背对所述上盖的一侧设有第二环形槽，所述定子嵌于所述第二环形槽内。
作为一种改进方式，所述微型水泵还包括安装于所述底座的电路板，所述电路板通过线缆电连接所述定子。
作为一种改进方式，所述底座背对所述上盖的一侧设有安装槽，所述电路板嵌于所述安装槽内。
作为一种改进方式，所述底座背对所述上盖的一侧设有走线槽，所述走线槽连通所述第二环形槽和所述安装槽，所述线缆布置在所述走线槽中。
本申请的目的之二采用如下技术方案实现：
一种电子设备，包括液冷散热系统，所述液冷散热系统包括上述的微型水泵。
 有益效果
本申请实施方式相对于现有技术而言，通过在底座和上盖中的一者设有环绕内腔的第一环形槽，在底座和上盖中的另一者设有至少一个环形防水台阶，环形防水台阶嵌于第一环形槽内，环形防水台阶不仅可以起到增加水流阻力的作用，降低密封圈密封不良时出现漏水的风险，而且环形防水台阶和第一环形槽的配合可以用于实现底座和上盖之间的定位，便于泵体的组装。
 附图说明
图1为本申请一实施例提出的微型水泵的顶部视角的结构示意图；
图2为本申请一实施例提出的微型水泵的底部视角的结构示意图；
图3为图1中A-A截面示意图；
图4为图3中所示结构的爆炸示意图；
图5为本申请一实施例提出的微型水泵的顶部视角的爆炸示意图；
图6为本申请一实施例提出的微型水泵的底部视角的爆炸示意图；
图7为本申请一实施例提出的转轴的结构示意图；
图8为本申请另一实施例提出的微型水泵的结构示意图；
图9为本申请一实施例提出的电子设备的部分结构的连接示意图。
 本发明的实施方式
下面结合附图和实施方式对本申请作进一步说明。
需要说明的是，本申请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。
如图1-4所示，本申请的一实施例提出一种微型水泵，包括泵体10和驱动机构20，泵体10具有内腔101、连通内腔101的进液口102及连通内腔101的出液口103，驱动机构20安装于泵体10以驱动液体从进液口102进入内腔101并从出液口103排出。
泵体10包括底座11、上盖12及密封圈13，上盖12设有环绕内腔101的第一环形槽121，底座11设有一个环形防水台阶111，环形防水台阶111嵌于第一环形槽121内，密封圈13设于第一环形槽121内且夹设于底座11与上盖12之间。上盖12与底座11连接时，上盖12与底座11挤压密封圈，形成上盖12和底座11之间的密封，防止内腔101中的液体从上盖12与底座11之间的缝隙泄漏出去。
需要说明的是，第一环形槽121和环形防水台阶111的位置可以互换，即第一环形槽121设于底座11，而环形防水台阶111设于上盖12也是可以的。还需要说明的是，环形防水台阶111的数量不局限为一个，也可以是一个以上的数量，具体根据实际设计需要而定。
本实施例中，通过在底座11和上盖12中的一者设有环绕内腔101的第一环形槽121，在底座11和上盖12中的另一者设有至少一个环形防水台阶111，环形防水台阶111嵌于第一环形槽121内，环形防水台阶111不仅可以起到增加水流阻力的作用，降低密封圈13密封不良时出现漏水的风险，而且环形防水台阶111和第一环形槽121的配合可以用于实现底座11和上盖12之间的定位，便于泵体10的组装。
可选地，密封圈13环绕于环形防水台阶111的外周。该设计方式便于密封圈13的安装，安装时可以先将密封圈13套设在环形防水台阶111的外周，再将密封圈13和环形防水台阶111一起前进第一环形槽121内，安装简单。当然，密封圈13设于环形防水台阶111的内侧也是可以的。当环形防水台阶111的数量为多个时，密封圈13套设在其中一个环形防水台阶111的外周。
示例性地，第一环形槽121和环形防水台阶111均为圆形。第一环形槽121和环形防水台阶111也可以为其他形状，具体根据实际设计需要而定。
可选地，环形防水台阶111与底座11一体成型。
如图3-6所示，驱动机构20包括叶轮21、定子22及转子23，叶轮21设于内腔101内，底座11设有转轴14，叶轮21与转轴14转动连接，转子23安装于叶轮21，定子22安装于底座11，定子22用于驱动转子23转动。
运行时，给定子22通交流电，根据电磁感应原理，定子22产生旋转磁场，转子23在旋转磁场中受安培力的作用发生旋转，旋转的转子23带动叶轮21旋转。液体从进液口102进入内腔101，在叶轮21的推动下高速旋转并做离心运动，液体到达出液口103时从出液口103甩出，液体被甩出后，内腔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进液口102补充进内腔101中，重复地实现上述的动作，实现液体的输送。
由于定子22和转子23之间通过电磁力相互作用，不需要直接连接，因而不需要开设连通内腔101的安装孔，可以避免内腔101中的流体通过安装孔发生泄漏。
当然，也可以通过在泵体10安装电机，电机的输出轴延伸进内腔101中与叶轮21连接，电机通过输出轴驱动叶轮21转动。
转轴14不局限于设于底座11，转轴14设于上盖12也是可以的。
可选地，转轴14通过二次注塑成型于底座11。以该实施方式，转轴14与底座11之间连接牢固，叶轮21的转动运行稳定。
叶轮21包括安装部211、环形部212及叶片213，安装部211设于环形部212的内侧，安装部211与转轴14转动连接，叶片213设于环形部212的外侧壁，转子23为安装于环形部212的环形磁钢。可选地，转子23通过胶合固定于环形部212的内侧壁。
当然，转子23不局限于通过胶合的方式固定在环形部212的内侧壁，例如，转子23也可以通过二次注塑的方式内嵌于环形部212内。
底座11背对上盖12的一侧设有第二环形槽112，定子22嵌于第二环形槽112内。通过设置第二环形槽112收容定子22，定子22不会增加泵体10整体的厚度，使得泵体10的尺寸小。
微型水泵还包括安装于底座11的电路板30，电路板30通过线缆40电连接定子22。底座11背对上盖12的一侧设有安装槽113，电路板30嵌于安装槽113内。以该实施方式，电路板30收容于安装槽113内，不外露，可以避免在后续的安装工序中，电路板30上的元器件受到磕碰而损坏，而且，电路板30收容于安装槽113内，电路板30不会增加泵体10整体的厚度，使得泵体10的尺寸小。当然，底座11也可以不设置有安装槽113，电路板30直接安装于底座11的外表面。
底座11背对上盖12的一侧设有走线槽114，走线槽114连通第二环形槽112和安装槽113，线缆40布置在走线槽114中。以该实施方式，线缆40布线在走线槽114内，不外露，可以避免线缆40遭受外力拉扯而断裂，而且，线缆40布线在走线槽114内，线缆40不会增加泵体10整体的厚度，使得泵体10的尺寸小。当然，底座11也可以不设有走线槽114，线缆40直接布线在底座11的外表面。
如图7所示，可选地，转轴14与底座11连接的一端的外侧壁设有凹陷141，该凹陷141用于转轴14与底座11注塑时，底座11可以部分嵌进凹陷141，使得转轴14与底座11之前的连接更为牢固。示例性地，凹陷141设有多个，多个凹陷141环绕转轴14的轴间隔设置。
如图8所示，本申请的另一实施例提出的微型水泵，本实施例提出的微型水泵与上文实施例提出的微型水泵不同的地方在于：本实施例中，转子23’安装于安装部211’。
可选地，转子23’通过胶合固定于安装部211’的外侧壁。当然，转子23’也可以通过二次注塑的方式内嵌于安装部211’。本实施例提出的微型水泵的其他部件及连接关系可以参照上述实施例，在此不做赘述。
如图9所示，本申请的一实施例还提出一种电子设备，包括液冷散热系统，液冷散热系统包括上述的微型水泵，微型水泵用于输送冷却液。
该电子设备还包括控制器200和温度传感器300，温度传感器300和电路板30与控制器200电连接，温度传感器300安装于需要散热的物件，温度传感器300用于检测需要散热的物件的温度，并将检测的温度值传输给控制器200，控制器200根据温度传感器300检测的数据，控制电路板30调节输入定子22的脉冲宽度，从而调节叶轮21的转速以改变冷却液的流速，以起到较好的散热效果。
以上所述的仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。

Claims (10)

  1. 一种微型水泵，其特征在于，包括泵体和驱动机构，所述泵体具有内腔、连通所述内腔的进液口及连通所述内腔的出液口，所述驱动机构安装于所述泵体以驱动液体从所述进液口进入所述内腔并从所述出液口排出；
    所述泵体包括底座、上盖及密封圈，所述底座和所述上盖中的一者设有环绕所述内腔的第一环形槽，所述底座和所述上盖中的另一者设有至少一个环形防水台阶，所述环形防水台阶嵌于所述第一环形槽内，所述密封圈设于所述第一环形槽内且夹设于所述底座与所述上盖之间。
  2. 根据权利要求1所述的微型水泵，其特征在于，所述环形防水台阶的数量为一个，所述密封圈环绕于所述环形防水台阶的外周。
  3. 根据权利要求1所述的微型水泵，其特征在于，所述驱动机构包括叶轮、定子及转子，所述叶轮设于所述内腔内，所述底座或所述上盖设有转轴，所述叶轮与所述转轴转动连接，所述转子安装于所述叶轮，所述定子安装于所述底座，所述定子用于驱动所述转子转动。
  4. 根据权利要求3所述的微型水泵，其特征在于，所述叶轮包括安装部、环形部及叶片，所述安装部设于所述环形部的内侧，所述安装部与所述转轴转动连接，所述叶片设于所述环形部的外侧壁；
    所述转子为安装于所述环形部或安装部的环形磁钢。
  5. 根据权利要求4所述的微型水泵，其特征在于，所述转子通过胶合固定于所述环形部的内侧壁或安装部的外侧壁。
  6. 根据权利要求3所述的微型水泵，其特征在于，所述底座背对所述上盖的一侧设有第二环形槽，所述定子嵌于所述第二环形槽内。
  7. 根据权利要求6所述的微型水泵，其特征在于，所述微型水泵还包括安装于所述底座的电路板，所述电路板通过线缆电连接所述定子。
  8. 根据权利要求7所述的微型水泵，其特征在于，所述底座背对所述上盖的一侧设有安装槽，所述电路板嵌于所述安装槽内。
  9. 根据权利要求8所述的微型水泵，其特征在于，所述底座背对所述上盖的一侧设有走线槽，所述走线槽连通所述第二环形槽和所述安装槽，所述线缆布置在所述走线槽中。
  10. 一种电子设备，其特征在于，包括液冷散热系统，所述液冷散热系统包括权利要求1至9任一项所述的微型水泵。
PCT/CN2020/134681 2020-11-27 2020-12-08 微型水泵及电子设备 Ceased WO2022110293A1 (zh)

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