WO2022110292A1 - 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
WO2022110292A1
WO2022110292A1 PCT/CN2020/134680 CN2020134680W WO2022110292A1 WO 2022110292 A1 WO2022110292 A1 WO 2022110292A1 CN 2020134680 W CN2020134680 W CN 2020134680W WO 2022110292 A1 WO2022110292 A1 WO 2022110292A1
Authority
WO
WIPO (PCT)
Prior art keywords
base
annular
upper cover
water pump
groove
Prior art date
Application number
PCT/CN2020/134680
Other languages
English (en)
French (fr)
Inventor
许德涛
凌芳华
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 WO2022110292A1 publication Critical patent/WO2022110292A1/zh

Links

Classifications

    • 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
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
    • 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
    • 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
    • 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
    • F04D29/42—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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
    • F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
    • 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
    • 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
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • 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
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/80—Size or power range of the machines
    • F05D2250/82—Micromachines
    • 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 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 this application is to provide a miniature water pump with a better sealing effect between the base and the upper cover.
  • 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 outside of the inner cavity, and the sealing ring is sandwiched between the base and the upper cover and partially embedded in the first annular groove, the first annular groove includes a groove bottom wall facing the base or the upper cover, and the sealing ring faces the groove bottom wall At least two first annular protrusions are protruded from one side of the sealing ring, and at least one second annular protrusion is protruded from the side of the sealing ring facing away from the first annular protrusions.
  • the other of the base and the upper cover is provided with a second annular groove opposite to the first annular groove, and the second annular protrusion is embedded in the second annular groove Inside.
  • the cross-sectional profile of the first annular protrusion is gradually reduced toward the direction of the bottom wall of the groove; and/or,
  • the cross-sectional profile of the second annular protrusion tapers away from the bottom wall of the groove.
  • 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 third annular groove, and the stator is embedded in the third 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 side of the base facing away from the upper cover is provided with a wiring groove, the wiring groove is connected to the third annular groove and the installation groove, and the cables are arranged on the in the wireway.
  • one of the base and the upper cover is provided with a positioning column
  • the other of the base and the upper cover is provided with a positioning hole
  • the positioning column is embedded in the positioning holes to form the positioning of the base and the upper cover.
  • An electronic device includes a liquid-cooled heat dissipation system, and the liquid-cooled heat dissipation system includes the above-mentioned micro water pump.
  • the sealing ring of this embodiment can be more compressed and achieve a better sealing effect, and at least two first annular protrusions can form two to multiple seals, and the sealing effect is good.
  • the arrangement of the first annular protrusion and the second annular protrusion can extend the water flow channel, increase the resistance of the liquid in the inner cavity to leak to the outside, and achieve a better sealing effect.
  • 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 , and the sealing ring 13 is sandwiched between the base 11 and the upper cover 12 and partially embedded in the first annular groove 121 .
  • the first annular groove 121 includes a groove bottom wall 1211 facing the base 11, and at least two first annular protrusions 131 are protruded from the side of the sealing ring 13 facing the groove bottom wall 1211, and the sealing ring 13 faces away from the first annular groove 121.
  • At least one second annular protrusion 132 is protruded from one side of an annular protrusion 131 .
  • the upper cover 12 squeezes the first annular protrusion 131, and the base 11 squeezes the second annular protrusion 132, forming a seal between the upper cover 12 and the base 11, preventing the inner cavity 101 from being damaged.
  • the liquid leaks out from the gap between the upper cover 12 and the base 11 .
  • first annular protrusions 131 are protruded from the side of the sealing ring 13 facing the bottom wall 1211 of the groove, and at least one second annular protrusion 131 is protruded from the side of the sealing ring 13 facing away from the first annular protrusion 131
  • the annular protrusion 132, the sealing ring 13 of this embodiment can be more compressed, and achieve a better sealing effect, and at least two first annular protrusions 131 can form two to multiple seals, and the sealing effect is good.
  • the arrangement of the first annular protrusion 131 and the second annular protrusion 132 can extend the water flow channel, increase the resistance of the liquid in the inner cavity 101 to leak out, and achieve a better sealing effect.
  • the cross-sectional profile of the first annular groove 121 is rectangular, and the bottom wall 1211 of the groove is flat.
  • first annular groove 121 is not limited to being disposed on the upper cover 12 , the first annular groove 121 can also be disposed on the base 11 . When the first annular groove 121 is disposed on the base 11 , the bottom wall 1211 of the groove faces upwards. Cover 12.
  • the number of the first annular protrusions 131 is two
  • the number of the second annular protrusions 132 is one
  • the vertex of the second annular protrusion 132 is located between the vertexes of the two first annular protrusions 131
  • the sealing The ring 13 forms a three-pointed sealing structure.
  • the base 11 is provided with a second annular groove 111 opposite to the first annular groove 121 , and the second annular protrusion 132 is embedded in the second annular groove 111 .
  • the base 11 may also not be provided with the second annular groove 111 .
  • the first annular groove 121 may be disposed on the base 11 , and in this embodiment, the second annular groove 111 is correspondingly disposed on the upper cover 12 .
  • the cross-sectional profile of the first annular protrusion 131 is gradually reduced toward the direction of the groove bottom wall 1211 .
  • the cross-sectional profile of the first annular protrusion 131 is V-shaped.
  • the cross-sectional profile of the second annular protrusion 132 is gradually reduced toward the direction away from the groove bottom wall 1211 .
  • the cross-sectional profile of the second annular protrusion 132 is V-shaped.
  • the cross-sectional contour of the second annular groove 111 is V-shaped, which matches the shape of the second annular protrusion 132 .
  • 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.
  • a third annular groove 112 is provided on the side of the base 11 facing away from the upper cover 12 , and the stator 22 is embedded in the third 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 .
  • the 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 cable routing slot 114 , the cable routing slot 114 communicates with the third annular slot 112 and the installation slot 113 , and the cable 40 is arranged in the cable routing 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 .
  • the base 11 is provided with positioning posts 115
  • the upper cover 12 is provided with positioning holes 122
  • the positioning posts 115 are embedded in the positioning holes 122 to form the positioning of the base 11 and the upper cover 12 .
  • the positions of the positioning posts 115 and the positioning holes 122 can be interchanged, that is, the positioning posts 115 can be provided on the upper cover 12 and the positioning holes 122 can be provided on the base 11 .
  • the positioning of the base 11 and the upper cover 12 is achieved by arranging the positioning posts 115 and the positioning holes 122 , and the assembly accuracy between the base 11 and the upper cover 12 can be improved.
  • 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)
  • Microelectronics & Electronic Packaging (AREA)
  • Thermal Sciences (AREA)
  • Geometry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种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），驱动机构安装于泵体以驱动液体从进液口进入内腔并从出液口排出；泵体包括底座（11）、上盖（12）及密封圈（13），底座和上盖中的一者设有环绕于内腔外侧的第一环形槽（121），密封圈夹设于底座与上盖之间并部分嵌于第一环形槽内，第一环形槽包括朝向底座或者上盖的槽底壁（1211），密封圈朝向槽底壁的一侧凸设至少两个第一环形凸起（131），密封圈背对第一环形凸起的一侧凸设至少一个第二环形凸起（132）。微型水泵的密封圈可以形成两重至多重密封，密封效果好，且密封圈可以延长水流通道，增加内腔中的液体往外渗漏的阻力，实现较佳的密封效果。

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，其底座和上盖之间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于所述内腔外侧的第一环形槽，所述密封圈夹设于所述底座与所述上盖之间并部分嵌于所述第一环形槽内，所述第一环形槽包括朝向所述底座或者所述上盖的槽底壁，所述密封圈朝向所述槽底壁的一侧凸设至少两个第一环形凸起，所述密封圈背对所述第一环形凸起的一侧凸设至少一个第二环形凸起。
作为一种改进方式，所述底座和所述上盖中的另一者设有与所述第一环形槽相对的第二环形槽，所述第二环形凸起嵌于所述第二环形槽内。
作为一种改进方式，所述第一环形凸起的横截面轮廓朝向所述槽底壁的方向逐渐缩小；且/或，
所述第二环形凸起的横截面轮廓朝远离所述槽底壁的方向逐渐缩小。
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三环形槽，所述定子嵌于所述第三环形槽内。
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三环形槽和所述安装槽，所述线缆布置在所述走线槽中。
作为一种改进方式，所述底座和所述上盖中的一者设有定位柱，所述底座和所述上盖中的另一者设有定位孔，所述定位柱嵌于所述定位孔中以形成所述底座和所述上盖的定位。
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，通过设置密封圈朝向槽底壁的一侧凸设至少两个第一环形凸起，密封圈背对第一环形凸起的一侧凸设至少一个第二环形凸起，该实施方式的密封圈可以得到更多的压缩，起到更好的密封效果，且至少两个第一环形凸起可以形成两重至多重密封，密封效果好，此外，第一环形凸起和第二环形凸起的设置，可以延长水流通道，增加内腔中的液体往外渗漏的阻力，实现较佳的密封效果。
 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，密封圈13夹设于底座11与上盖12之间并部分嵌于第一环形槽121内，第一环形槽121包括朝向底座11的槽底壁1211，密封圈13朝向槽底壁1211的一侧凸设至少两个第一环形凸起131，密封圈13背对第一环形凸起131的一侧凸设至少一个第二环形凸起132。上盖12与底座11连接时，上盖12挤压第一环形凸起131，底座11挤压第二环形凸起132，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。
本实施例中，通过设置密封圈13朝向槽底壁1211的一侧凸设至少两个第一环形凸起131，密封圈13背对第一环形凸起131的一侧凸设至少一个第二环形凸起132，该实施方式的密封圈13可以得到更多的压缩，起到更好的密封效果，且至少两个第一环形凸起131可以形成两重至多重密封，密封效果好，此外，第一环形凸起131和第二环形凸起132的设置，可以延长水流通道，增加内腔101中的液体往外渗漏的阻力，实现较佳的密封效果。
示例性地，第一环形槽121的截面轮廓为矩形，槽底壁1211为平面。
需要说明的是，第一环形槽121不局限于设置在上盖12，第一环形槽121设置在底座11也是可以的，当第一环形槽121设于底座11时，槽底壁1211朝向上盖12。
示例性地，第一环形凸起131的数量为两个，第二环形凸起132的数量为一个，第二环形凸起132的顶点位于两个第一环形凸起131的顶点之间，密封圈13形成三尖式的密封结构。
可选地，底座11设有与第一环形槽121相对的第二环形槽111，第二环形凸起132嵌于第二环形槽111内。在一些实施例中，底座11也可以不设有第二环形凹槽111。
由上文的描述可知，第一环形凹槽121可以设置于底座11，在该实施例中，第二环形凹槽111对应地设于上盖12。
第一环形凸起131的横截面轮廓朝向槽底壁1211的方向逐渐缩小。示例性地，第一环形凸起131的横截面轮廓呈V型。
第二环形凸起132的横截面轮廓朝远离槽底壁1211的方向逐渐缩小。示例性地，第二环形凸起132的横截面轮廓呈V型。
可选地，第二环形槽111的截面轮廓为V型，与第二环形凸起132的形状相适配。
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的一侧设有第三环形槽112，定子22嵌于第三环形槽112内。通过设置第三环形槽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连通第三环形槽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。
可选地，底座11设有定位柱115，上盖12中设有定位孔122，定位柱115嵌于定位孔122中以形成底座11和上盖12的定位。当然，定位柱115和定位孔122的位置可以互换，即，定位柱115设于上盖12，而定位孔122设于底座11也是可以的。通过设置定位柱115和定位孔122实现底座11和上盖12的定位，可以提高底座11与上盖12之间的装配精度。
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 (12)

  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，所述密封圈夹设于所述底座与所述上盖之间并部分嵌于所述第一环形槽内，所述第一环形槽包括朝向所述底座或者所述上盖的槽底壁，所述密封圈朝向所述槽底壁的一侧凸设至少两个第一环形凸起，所述密封圈背对所述第一环形凸起的一侧凸设至少一个第二环形凸起。
  2. 根据权利要求1所述的微型水泵，其特征在于，所述底座和所述上盖中的另一者设有与所述第一环形槽相对的第二环形槽，所述第二环形凸起嵌于所述第二环形槽内。
  3. 根据权利要求2所述的微型水泵，其特征在于，所述第一环形凸起的横截面轮廓朝向所述槽底壁的方向逐渐缩小；且/或，
    所述第二环形凸起的横截面轮廓朝远离所述槽底壁的方向逐渐缩小。
  4. 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。
  5. 根据权利要求4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。
  6. 根据权利要求5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。
  7. 根据权利要求4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三环形槽，所述定子嵌于所述第三环形槽内。
  8. 根据权利要求7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。
  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安装槽，所述电路板嵌于所述安装槽内。
  10. 根据权利要求9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三环形槽和所述安装槽，所述线缆布置在所述走线槽中。
  11. 根据权利要求1所述的微型水泵，其特征在于，所述底座和所述上盖中的一者设有定位柱，所述底座和所述上盖中的另一者设有定位孔，所述定位柱嵌于所述定位孔中以形成所述底座和所述上盖的定位。
  12. 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11任一项所述的微型水泵。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2069946U (zh) * 1990-08-29 1991-01-23 何理泉 空腔自紧式o型密封圈
TWI308941B (en) * 2006-09-22 2009-04-21 Foxconn Tech Co Ltd Pump
CN210460890U (zh) * 2019-08-05 2020-05-05 浙江新柴股份有限公司 一种气缸盖罩的密封垫结构
CN210484096U (zh) * 2019-08-21 2020-05-08 深圳市欣普斯科技有限公司 微型泵
CN211082299U (zh) * 2019-10-14 2020-07-24 华中科技大学 一种具有陶瓷轴系的超薄微型泵
CN211599023U (zh) * 2020-01-20 2020-09-29 汉宇集团股份有限公司 一种盘式叶轮转子组件及应用该组件的微型离心泵

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5205721A (en) * 1991-02-13 1993-04-27 Nu-Tech Industries, Inc. Split stator for motor/blood pump
US6036194A (en) * 1996-09-16 2000-03-14 Cummins Engine Company, Inc. Combustion gas seal for an internal combustion engine
JP3349132B2 (ja) * 1999-04-12 2002-11-20 三菱電線工業株式会社 低荷重シール
FR2817301A1 (fr) * 2000-11-29 2002-05-31 Cyclam Sa Garniture monobloc d'etancheite pour pompe a liquide de refroidissement de vehicule automobile
TW561226B (en) * 2001-09-25 2003-11-11 Matsushita Electric Ind Co Ltd Ultra-thin pump and cooling system including the pump
JP3978021B2 (ja) * 2001-11-21 2007-09-19 三菱重工業株式会社 シールリング並びに複合材タンク、及び配管等のフランジ継手のシール構造
JP2003161284A (ja) * 2001-11-27 2003-06-06 Matsushita Electric Ind Co Ltd 薄型渦流ポンプとこれを備えた冷却システム
JP4592355B2 (ja) * 2004-03-31 2010-12-01 株式会社東芝 送液ポンプ、冷却システム、及び電気機器
JP2005315159A (ja) * 2004-04-28 2005-11-10 Toshiba Corp ポンプ及び電子機器
US7213814B2 (en) * 2004-07-28 2007-05-08 Federal-Mogul Worldwide, Inc. Seal assembly
CN101087083B (zh) * 2007-05-25 2010-09-08 奇瑞汽车股份有限公司 一种电动汽车电机的冷却水套
EP2017507B1 (en) * 2007-07-16 2016-06-01 Tenaris Connections Limited Threaded joint with resilient seal ring
JP2009074433A (ja) * 2007-09-20 2009-04-09 Panasonic Electric Works Co Ltd ポンプ
AT505550B1 (de) * 2007-10-31 2009-02-15 Hoerbiger Kompressortech Hold Mehrteiliger packungsring
JP3161327U (ja) * 2010-05-14 2010-07-29 全冠企業有限公司 双パッキン式電源ケーブル及び波管防水固定ヘッド
JP6034069B2 (ja) * 2011-07-25 2016-11-30 日本電産サンキョー株式会社 カスケードポンプ装置
CN202561038U (zh) * 2012-04-10 2012-11-28 上海乐研电气科技有限公司 用于密闭型的充有气体或液体的仪表的密封圈
CN102635570B (zh) * 2012-04-26 2013-08-21 张家港市恩达泵业有限公司 泵用整体式机械密封装置
EP3029332B1 (de) * 2014-12-05 2019-05-01 Sulzer Management AG Axial geteilte pumpe
CN105134563B (zh) * 2015-09-25 2018-01-02 珠海凯邦电机制造有限公司 稳压泵及其泵壳密封结构、净水机
DE202016103729U1 (de) * 2016-07-12 2016-07-25 Asia Vital Components Co., Ltd. Flüssigkeitskühlvorrichtung
CN108343635B (zh) * 2017-01-22 2023-11-07 襄阳五二五化工机械有限公司 一种适用于高含固量高结晶工位的泵用机械密封
CN206917915U (zh) * 2017-07-24 2018-01-23 段艳青 一种离心泵的机械密封结构
CN109356856B (zh) * 2018-12-19 2020-05-19 华中科技大学 一种超薄离心式微型泵

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2069946U (zh) * 1990-08-29 1991-01-23 何理泉 空腔自紧式o型密封圈
TWI308941B (en) * 2006-09-22 2009-04-21 Foxconn Tech Co Ltd Pump
CN210460890U (zh) * 2019-08-05 2020-05-05 浙江新柴股份有限公司 一种气缸盖罩的密封垫结构
CN210484096U (zh) * 2019-08-21 2020-05-08 深圳市欣普斯科技有限公司 微型泵
CN211082299U (zh) * 2019-10-14 2020-07-24 华中科技大学 一种具有陶瓷轴系的超薄微型泵
CN211599023U (zh) * 2020-01-20 2020-09-29 汉宇集团股份有限公司 一种盘式叶轮转子组件及应用该组件的微型离心泵

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