WO2020034654A1 - 一种带有电机固定圈的充气机 - Google Patents

一种带有电机固定圈的充气机 Download PDF

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Publication number
WO2020034654A1
WO2020034654A1 PCT/CN2019/083085 CN2019083085W WO2020034654A1 WO 2020034654 A1 WO2020034654 A1 WO 2020034654A1 CN 2019083085 W CN2019083085 W CN 2019083085W WO 2020034654 A1 WO2020034654 A1 WO 2020034654A1
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WO
WIPO (PCT)
Prior art keywords
motor
fixing ring
driving motor
inflator
motor fixing
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PCT/CN2019/083085
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English (en)
French (fr)
Inventor
杨琪
Original Assignee
东莞瑞柯电子科技股份有限公司
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Filing date
Publication date
Application filed by 东莞瑞柯电子科技股份有限公司 filed Critical 东莞瑞柯电子科技股份有限公司
Priority to EP19850004.3A priority Critical patent/EP3767805A4/en
Priority to JP2020550643A priority patent/JP7000592B2/ja
Priority to KR1020207026827A priority patent/KR102458365B1/ko
Priority to US15/733,573 priority patent/US20210071652A1/en
Publication of WO2020034654A1 publication Critical patent/WO2020034654A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F04B39/066—Cooling by ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • 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
    • F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid 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
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid 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
    • F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
    • 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
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/12—Kind or type gaseous, i.e. compressible
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
    • 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 invention relates to the technical field of inflator, and particularly discloses an inflator with a motor fixed ring.
  • the inflator is one of the common equipment for inflating various pneumatic tires. Most of the inflators include a housing, a motor and a movement. During the use of the inflator, a motor-driven movement is used to inflate the pneumatic tire. In the prior art, The structure design of the inflator is unreasonable. The heat generated when the motor is running cannot be diffused out of the casing in time, which often causes the motor to burn out due to excessive temperature.
  • the object of the present invention is to provide an inflator with a fixed ring of a motor.
  • the cooling fan of the inflator causes air along the outer surface of the driving motor.
  • the air-gap flow between the housing and the inner surface of the casing removes the heat from the drive motor, improves the heat dissipation efficiency of the drive motor, and improves the performance of the inflator.
  • an inflator with a motor fixed ring of the present invention includes a casing, a movement installed in the casing, and a drive motor, and the drive motor is used to drive the movement to inflate external objects;
  • the motor fixing ring is also provided.
  • the motor fixing ring is sleeved on the outside of the driving motor.
  • the motor fixing ring is clamped between the driving motor and the casing, and there is an air gap between the outer surface of the driving motor and the inner surface of the casing.
  • the motor fixing ring has a ring body and two lugs, the two lugs are protruded from two sides away from each other of the ring body, the two lugs are respectively disposed on the casing, and the ring body is sleeved on There is an over-air gap between the outer surface of the ring body and the inner surface of the casing on the outside of the drive motor.
  • one of the lugs is provided with a limiting protrusion
  • the casing is provided with a limiting groove for receiving the limiting protrusion
  • the driving motor is provided with an annular blind groove
  • the annular blind groove is recessed from the outer surface of the driving motor
  • the motor fixing ring is accommodated in the annular blind groove
  • the drive motor is provided with an anti-rotation groove which communicates with the annular blind groove
  • the motor fixing ring is provided with an anti-rotation piece
  • the anti-rotation piece protrudes into the anti-rotation groove
  • the motor fixing ring is made of soft rubber.
  • the lug is provided with a clamping blind groove
  • the casing is provided with two clamping blocks, and the two clamping blocks are used to protrude into the clamping blind blind grooves of the two lugs, respectively.
  • the beneficial effect of the present invention is that in the manufacturing process of the inflator, the motor fixing ring is first set on the outside of the driving motor, and then the driving motor is connected to the motor fixing ring and installed in the casing, so that the motor fixing ring is clamped on the driving motor.
  • the cooling fan of the inflator causes air to flow along the over-air gap between the outer surface of the drive motor and the inner surface of the case, thereby taking away the heat of the drive motor and improving The heat dissipation efficiency of the driving motor improves the performance of the inflator.
  • FIG. 1 is a schematic view of a three-dimensional structure of the present invention
  • FIG. 2 is a schematic diagram of an exploded structure of the present invention
  • FIG. 3 is a front view of a driving motor of the present invention.
  • FIG. 4 is a schematic perspective view of a three-dimensional structure of a motor fixing ring according to the present invention.
  • FIG. 5 is a perspective view of the motor fixing ring of the present invention from another perspective.
  • an inflator with a motor fixing ring includes a casing 1, a movement 2 installed in the casing 1, and a driving motor 3.
  • the driving motor 3 is used for The driving movement 2 inflates external objects (such as pneumatic tires, balloons, etc.); it also includes a motor fixing ring 4, which is generally annular, and the motor fixing ring 4 is set on the outside of the driving motor 3.
  • the motor The fixing ring 4 is clamped between the driving motor 3 and the casing 1, and there is an over-air gap between the outer surface of the driving motor 3 and the inner surface of the casing 1.
  • the motor fixing ring 4 is set on the outside of the driving motor 3, and then the driving motor 3 and the motor fixing ring 4 are installed in the casing 1 so that the motor fixing ring 4 is clamped on the drive.
  • the cooling fan of the inflator causes air to flow along the over-air gap between the outer surface of the driving motor 3 and the inner surface of the casing 1, and flows through the air gap The flowing air takes away the heat on the drive motor 3, improves the heat dissipation efficiency of the drive motor 3, and improves the performance of the inflator.
  • the motor fixing ring 4 has a ring body (not labeled in the figure) and two lugs 5.
  • the two lugs 5 are protruded from the sides of the ring body away from each other in a direction away from each other, and the ring body is sleeved on There is an over-air gap between the outer surface of the ring body and the inner surface of the casing 1 on the outside of the driving motor 3.
  • the two lugs 5 are respectively fixed on the casing 1.
  • the cooling fan makes the air flow along the air gap between the drive motor 3 and the casing 1, and between the ring body and the casing 1. The air gap flow further assists in improving the heat dissipation effect of the drive motor.
  • the motor fixing ring 4 is an integrated structure, that is, the ring body and the two lugs 5 are an integral structure.
  • the two lugs 5 are provided with a clamping blind groove 6, and the motor fixing ring 4 is made of plastic.
  • the setting of the blind holding groove 6 is used to reduce the thickness of the lugs 5.
  • a solid core is used to avoid the thicker thickness of the lugs 5 and the poor manufacturing of the lugs 5 due to the shrinkage of the plastic.
  • the casing 1 is provided with two clamping blocks (not shown in the figure), and the two clamping blocks are used to protrude into the two holding blind grooves 6, respectively. At this time, the clamping blocks of the casing 1 protrude.
  • one of the lugs 5 is provided with a limited-position bump 7, and the housing 1 is provided with a limiting groove (not shown in the figure) for receiving the limiting bump 7;
  • the limiting protrusion 7 is first aligned with the limiting groove, and then the housing 1 and the motor fixing ring 4 are assembled so that the limiting protrusion 7 is inserted into the limiting groove to realize The accurate alignment of the motor fixed ring 4 and the casing 1 prevents the motor fixed ring 4 from being assembled incorrectly due to an incorrect installation position.
  • the driving motor 3 is provided with an annular blind groove 8.
  • the annular blind groove 8 is recessed from the outer surface of the driving motor 3.
  • the ring body of the motor fixing ring 4 is accommodated in the annular blind groove 8.
  • the annular blind groove 8 is used.
  • the side wall of the motor stop ring 4 prevents the motor ring 4 from moving relative to the drive motor 3.
  • the ring body of the motor ring 4 does not protrude from the outer surface of the drive motor 3, that is, the The ring body is completely submerged into the annular blind groove 8. In this way, when the cooling fan makes air flow along the air gap between the drive motor 3 and the casing 1, the ring body will not block the air flowing in the air gap, ensuring air gap
  • the air flowing inside quickly takes the heat of the drive motor 3 out of the casing 1.
  • the drive motor 3 is provided with an anti-rotation groove 9 communicating with the annular blind groove 8.
  • the anti-rotation groove 9 is recessed from the side wall of the annular blind groove 8.
  • the motor fixing ring 4 is provided with an anti-rotation piece 11. After the motor fixing ring 4 is set on the driving motor 3, the anti-rotation piece 11 protrudes into the anti-rotation slot 9, and the side wall of the anti-rotation slot 9 is used to abut the anti-rotation piece 11 to prevent the motor fixing ring 4 and the driving motor 3 from occurring. Relative rotation.
  • the lug 5 is connected to the motor fixing ring 4 and the anti-rotation piece 11 at the same time, so that the length of the lug 5 is extended, the length of the blind groove 6 is extended, and the clamping between the block and the lug 5 is improved. effect.
  • the motor fixing ring 4 is made of soft rubber.
  • the motor fixing ring 4 is made of silicon rubber, and the soft rubber is used to better absorb the impact on the casing 1 when the driving motor 3 is running.
  • a control module 12 is also installed in the casing 1.
  • a display screen 13 for displaying operating parameters of the inflator is installed on the casing 1.
  • the driving motor 3 and the display screen 13 are electrically connected to the control module 12, respectively.
  • the display screen 13 is provided with an inflatable progress belt.
  • the inflatable progress belt is composed of multiple display bars. The multiple display bars are spaced from each other and arranged in parallel.
  • the inflatable progress belt is used to count down the time required for the external objects to be filled. The difference between the target inflation pressure and the actual pressure is divided by the flow rate of the inflator to determine the number of display bars.
  • the casing 1 is provided with a grip handle 14, and two ends of the grip handle 14 are respectively connected to the casing 1, and a yield hole (not labeled) is formed between the grip handle 14 and the casing 1.
  • a yield hole (not labeled) is formed between the grip handle 14 and the casing 1.
  • the grasping handle 14 is further provided with a friction protrusion (not shown in the figure) for resisting the user's hand.

Abstract

一种带有电机固定圈的充气机，包括机壳(1)、装设于机壳(1)内的机芯(2)及驱动电机(3)，驱动电机(3)用于驱动机芯(2)对外界的物件进行充气，还包括电机固定圈(4)，电机固定圈(4)套设于驱动电机(3)的外侧，电机固定圈(4)夹持在驱动电机(3)与机壳(1)之间，驱动电机(3)的外表面与机壳(1)的内表面之间具有过气间隙。在充气机的制造过程中，先将电机固定圈(4)套设在驱动电机(3)的外侧，再将驱动电机(3)连同电机固定圈(4)装设在机壳(1)中，使得电机固定圈(4)夹持在驱动电机(3)与机壳(1)之间，在充气机的使用过程中，充气机的散热风扇使得空气沿驱动电机(3)的外表面与机壳(1)的内表面之间的过气间隙流动，进而带走驱动电机的热量，提升驱动电机的散热效率，提升充气机的使用性能。

Description

一种带有电机固定圈的充气机 技术领域
本发明涉及充气机技术领域，尤其公开了一种带有电机固定圈的充气机。
背景技术
充气机是对各种气胎进行充气的常用设备之一，充气机大都包括外壳，马达及机芯，在充气机的使用过程中，利用马达驱动机芯对气胎进行充气，现有技术中充气机的构造设计不合理，马达运转时所产生的热量不能被及时地扩散出机壳外，常常会导致马达因温度过高而烧坏。
发明内容
为了克服现有技术中存在的缺点和不足，本发明的目的在于提供一种带有电机固定圈的充气机，在充气机的使用过程中，充气机的散热风扇使得空气沿驱动电机的外表面与机壳的内表面之间的过气间隙流动，进而带走驱动电机的热量，提升驱动电机的散热效率，提升充气机的使用性能。
为实现上述目的，本发明的一种带有电机固定圈的充气机，包括机壳、装设于机壳内的机芯及驱动电机，驱动电机用于驱动机芯对外界的物件进行充气；还包括电机固定圈，电机固定圈套设于驱动电机的外侧，电机固定圈夹持在驱动电机与机壳之间，驱动电机的外表面与机壳的内表面之间具有过气间隙。
较佳地，所述电机固定圈具有圈体及两个凸耳，两个凸耳自圈体彼此远离的两侧突设而成，两个凸耳分别设置于机壳，圈体套设在驱动电机的外侧，圈体的外表面与机壳的内表面之间具有过气间隙。
较佳地，一个所述凸耳设有限位凸块，机壳设有用于容设限位凸块的限位凹槽。
较佳地，所述驱动电机设有环形盲槽，环形盲槽自驱动电机的外表面凹设而成，电机固定圈容设于环形盲槽内。
较佳地，所述驱动电机设有与环形盲槽连通的防转槽，电机固定圈设有防转片，防转片突伸入防转槽内。
较佳地，所述电机固定圈采用软胶制成。
较佳地，所述凸耳设置有卡持盲槽，机壳设有两个卡块，两个卡块用于分别突伸入两个凸耳的卡持盲槽内。
本发明的有益效果：在充气机的制造过程中，先将电机固定圈套设在驱动电机的外侧，再将驱动电机连通电机固定圈装设在机壳中，使得电机固定圈夹持在驱动电机与机壳之间，在充气机的使用过程中，充气机的散热风扇使得空气沿驱动电机的外表面与机壳的内表面之间的过气间隙流动，进而带走驱动电机的热量，提升驱动电机的散热效率，提升充气机的使用性能。
附图说明
图1为本发明的立体结构示意图；
图2为本发明的分解结构示意图；
图3为本发明的驱动电机的主视图；
图4为本发明的电机固定圈的立体结构示意图；
图5为本发明的电机固定圈另一视角的立体结构示意图。
附图标记包括：
1—机壳               2—机芯               3—驱动电机
4—电机固定圈         5—凸耳               6—卡持盲槽
7—限位凸块           8—环形盲槽           9—防转槽
11—防转片            12—控制模块          13—显示屏
14—抓柄。
具体实施方式
为了便于本领域技术人员的理解，下面结合实施例及附图对本发明作进一步的说明，实施方式提及的内容并非对本发明的限定。
请参阅图1至图5所示，本发明的一种带有电机固定圈的充气机，包括机 壳1、装设在机壳1内的机芯2及驱动电机3，驱动电机3用于驱动机芯2对外界的物件(如气胎、气球等)进行充气；还包括电机固定圈4，电机固定圈4大致呈圆环状，电机固定圈4套设在驱动电机3的外侧，电机固定圈4夹持在驱动电机3与机壳1之间，驱动电机3的外表面与机壳1的内表面之间具有过气间隙。
在充气机的制造过程中，先将电机固定圈4套设在驱动电机3的外侧，再将驱动电机3连同电机固定圈4装设在机壳1中，使得电机固定圈4夹持在驱动电机3与机壳1之间，在充气机的使用过程中，充气机的散热风扇使得空气沿驱动电机3的外表面与机壳1的内表面之间的过气间隙流动，流经过气间隙的流动空气带走驱动电机3上的热量，提升驱动电机3的散热效率，提升充气机的使用性能。
所述电机固定圈4具有圈体(图中未标号)及两个凸耳5，两个凸耳5自圈体彼此远离的两侧朝彼此远离的方向突设而成，圈体套设在驱动电机3的外侧，圈体的外表面与机壳1的内表面之间具有过气间隙。两个凸耳5分别固定在机壳1上，在充气机的使用过程中，散热风扇使得空气沿驱动电机3与机壳1之间的过气间隙、圈体与机壳1之间的过气间隙流动，进一步辅助提升驱动电机的散热效果。
所述电机固定圈4为一体式构造，即圈体与两个凸耳5为一体式构造，两个凸耳5上均设置有卡持盲槽6，电机固定圈4采用塑料制成，卡持盲槽6的设置用于对凸耳5进行减厚，相较于凸耳5采用实芯设置，避免凸耳5的厚度较厚而因塑料缩水率产生凸耳5制造不良。优选地，机壳1上设置有两个卡块(图中未示出)，两个卡块用于分别突伸入两个卡持盲槽6内，此时机壳1的卡块突伸入卡持盲槽6内，利用卡持盲槽6的侧壁挡止卡块，实现机壳1对电机固定圈4的限位，当充气机组装完成后，有效防止电机固定圈4相对机壳1发生移动。
本实施例中，其中一个所述凸耳5上设置有限位凸块7，机壳1上设置有 用于容设限位凸块7的限位凹槽(图中未示出)；在电机固定圈4与机壳1安装的过程中，先将限位凸块7对准限位凹槽，然后组装机壳1及电机固定圈4，使得限位凸块7插入限位凹槽内，实现电机固定圈4与机壳1的准确对位，防止电机固定圈4因安装位置错误而导致充气机组装不良。
所述驱动电机3上设置有环形盲槽8，环形盲槽8自驱动电机3的外表面凹设而成，电机固定圈4的圈体容设在环形盲槽8内，利用环形盲槽8的侧壁挡止电机固定圈4的圈体，防止电机固定圈4相对驱动电机3发生相对移动，电机固定圈4的圈体未突伸出驱动电机3的外表面，即电机固定圈4的圈体完全没入环形盲槽8中，如此，当散热风扇使得空气沿驱动电机3与机壳1之间的过气间隙流动时，圈体不会阻挡过气间隙内流动的空气，确保气间隙内流动的空气快速将驱动电机3的热量带出至机壳1外。
所述驱动电机3上设置有与环形盲槽8连通的防转槽9，防转槽9自环形盲槽8的侧壁凹设而成，电机固定圈4上设置有防转片11，当电机固定圈4套设在驱动电机3上之后，防转片11突伸入防转槽9内，利用防转槽9的侧壁抵触防转片11，防止电机固定圈4与驱动电机3发生相对转动。本实施例中，凸耳5同时与马达固定圈4及防转片11连接，延长凸耳5的长度，辅助延长卡持盲槽6的长度，提升卡块与凸耳5之间的卡持效果。
本实施例中，所述电机固定圈4采用软胶制成，例如，电机固定圈4采用硅胶制成，利用软胶更好地吸收驱动电机3运转时对机壳1造成的冲击。
所述机壳1内还装设有控制模块12，机壳1上安装有用于显示充气机的运行参数的显示屏13，驱动电机3、显示屏13分别与控制模块12电性连接。显示屏13上设置有充气进度带，充气进度带经由多个显示条构成，多个显示条彼此间隔且平行设置，充气进度带用于倒计时外界物件充满所需的时间，控制模块12根据外界物件目标充气压力与实际压力之差再除以充气机的流量以决定显示条的数量。
所述机壳1设有抓柄14，抓柄14的两端分别连接至机壳1，抓柄14与机 壳1之间形成有让位孔(图中未标号)，实际使用时，使用者将手插入让位孔内，然后用手握持住抓柄14，机壳1方便地移动充气机，提升客户的体验度。优选地，抓柄14上还设置有用于抵触使用者的手的摩擦凸起(图中未示出)。
以上内容仅为本发明的较佳实施例，对于本领域的普通技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，本说明书内容不应理解为对本发明的限制。

Claims (7)

  1. 一种带有电机固定圈的充气机，包括机壳、装设于机壳内的机芯及驱动电机，驱动电机用于驱动机芯对外界的物件进行充气；其特征在于：还包括电机固定圈，电机固定圈套设于驱动电机的外侧，电机固定圈夹持在驱动电机与机壳之间，驱动电机的外表面与机壳的内表面之间具有过气间隙。
  2. 根据权利要求1所述的带有电机固定圈的充气机，其特征在于：所述电机固定圈具有圈体及两个凸耳，两个凸耳自圈体彼此远离的两侧突设而成，两个凸耳分别设置于机壳，圈体套设在驱动电机的外侧，圈体的外表面与机壳的内表面之间具有过气间隙。
  3. 根据权利要求2所述的带有电机固定圈的充气机，其特征在于：一个所述凸耳设有限位凸块，机壳设有用于容设限位凸块的限位凹槽。
  4. 根据权利要求1所述的带有电机固定圈的充气机，其特征在于：所述驱动电机设有环形盲槽，环形盲槽自驱动电机的外表面凹设而成，电机固定圈容设于环形盲槽内。
  5. 根据权利要求4所述的带有电机固定圈的充气机，其特征在于：所述驱动电机设有与环形盲槽连通的防转槽，电机固定圈设有防转片，防转片突伸入防转槽内。
  6. 根据权利要求1所述的带有电机固定圈的充气机，其特征在于：所述电机固定圈采用软胶制成。
  7. 根据权利要求2所述的带有电机固定圈的充气机，其特征在于：所述凸耳设置有卡持盲槽，机壳设有两个卡块，两个卡块用于分别突伸入两个凸耳的卡持盲槽内。
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