WO2019227753A1 - 一种防着火阻燃塑封电机 - Google Patents

一种防着火阻燃塑封电机 Download PDF

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Publication number
WO2019227753A1
WO2019227753A1 PCT/CN2018/103761 CN2018103761W WO2019227753A1 WO 2019227753 A1 WO2019227753 A1 WO 2019227753A1 CN 2018103761 W CN2018103761 W CN 2018103761W WO 2019227753 A1 WO2019227753 A1 WO 2019227753A1
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WO
WIPO (PCT)
Prior art keywords
injection
fire
molded
flame
hole
Prior art date
Application number
PCT/CN2018/103761
Other languages
English (en)
French (fr)
Inventor
陈金强
张淼
林海奇
梁德志
Original Assignee
中山大洋电机股份有限公司
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
Priority claimed from CN201820814288.XU external-priority patent/CN208285108U/zh
Priority claimed from CN201820815104.1U external-priority patent/CN208424016U/zh
Application filed by 中山大洋电机股份有限公司 filed Critical 中山大洋电机股份有限公司
Publication of WO2019227753A1 publication Critical patent/WO2019227753A1/zh

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/02Casings or enclosures characterised by the material thereof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes

Definitions

  • the utility model relates to an anti-fire flame-retardant plastic-sealed motor.
  • the existing plastic-molded motor includes a rotating shaft, a rotor component, a plastic-molded stator component, and a bearing support frame.
  • the plastic-molded stator component includes a stator iron core, a stator winding, and an injection-molded casing.
  • the first cavity, the rotor assembly is installed in the first cavity, the two ends of the first cavity are provided with steps, the bearing support frame is installed on the steps, the bearing support frame is provided with a bearing chamber, the bearings are installed inside the bearing chamber, and the injection molding housing
  • the two ends are respectively covered with fire hoods.
  • the fire hood and the injection-molded housing are closely fitted together. Due to the vibration of the motor during operation, the fire-proof hood and the injection-molded housing are easily loosened only by close fitting under long-term work. As a result, the motor will lose its fire protection effect, and it may ignite the external load after the fire.
  • the injection-molded casing is provided with a cable outlet clip, and two ends of the injection-molded casing are respectively covered with a fire protection cover.
  • One of the fire protection covers is provided with a gap.
  • the vicinity of the cable output clip is provided. It is not exposed by the fire hood, and when the outlet clip catches fire, it may ignite the external load, and the fire retardant effect of the whole machine is poor.
  • the purpose of the utility model is to provide a fire-proof and flame-retardant plastic-sealed motor, which can solve the vibration generated by the existing motors during operation.
  • the fireproof cover and the injection-molded shell can be easily loosened only by close fitting, causing the motor to lose fire resistance. As a result, there is a possibility of igniting an external load after a fire.
  • a further object of the present utility model is to provide a fire-proof flame-retardant plastic-sealed motor, which solves the problem that the vicinity of the outlet clamp of the existing motor is not covered by a fireproof cover and is exposed outside, which may ignite an external load after the motor fires.
  • An anti-fire flame-retardant plastic-encapsulated motor includes a rotating shaft, a rotor assembly, a plastic-encapsulated stator assembly, a front bearing support frame, and a rear bearing support frame.
  • the plastic-encapsulated stator assembly includes a stator core, a coil winding, an end insulation, and an injection-molded housing.
  • the injection-molded shell insulates the stator core, the coil winding and the end into a single body.
  • the rotating shaft is installed on the rotor assembly.
  • a plastic cavity is provided with a first cavity in the middle, and a first cavity is provided on the top of the first cavity.
  • the first through hole is in communication with the first cavity.
  • the rotor assembly is installed in the first cavity.
  • the front bearing support frame and the rear bearing support frame are respectively provided with a bearing chamber.
  • a bearing the rotating shaft is supported on the bearing, and it further comprises a front fire hood and a rear fire hood, the front fire hood is installed on one end surface of the injection molding casing, and the rear fire hood encloses the other end surface and the outer wall of the injection molding casing,
  • the rear fire hood is provided with a connector. When the rear fire hood is sleeved on the injection-molded casing, the connector of the rear fire hood is snapped on the top surface of the front fire hood.
  • the front fire cover includes a first end panel, and a second through hole is opened in the middle of the first end panel.
  • the second through hole is bent inward to form a first flange.
  • the rear fire hood includes a second end panel and a first annular outer ring protruding from the second end panel.
  • the first annular outer ring forms a second cavity
  • the bottom of the first annular outer ring forms a plurality of connections.
  • the connecting piece is a rivet.
  • a third through hole is provided in the middle of the second end panel, and the third through hole is bent outward to form a second flange, and a gap is formed between the second flange and the rear bearing support frame, and the length of the gap is L ⁇ 5mm.
  • a plurality of mounting feet are provided on the outer side wall of the injection-molded shell, and a plurality of first notches are provided on the first annular outer ring of the rear fire hood, and the first notches are corresponding to the mounting feet.
  • the first notch passes through the mounting feet, which extend out of the rear fire shield.
  • a cable outlet is provided on the outer side wall of the injection-molded housing, and a second notch is provided on the first annular outer ring.
  • the second notch is corresponding to the cable outlet.
  • An annular protrusion is provided on one end surface of the injection-molded housing, the front bearing support frame is injection-molded integrally with the plastic stator assembly, and the rear bearing support frame is mounted on the annular protrusion of the injection-molded housing.
  • the thickness of the front fire shield and the thickness of the rear fire shield are greater than 0.25 mm and less than 3 mm.
  • the front fire hood and the rear fire hood are made of metal or refractory material.
  • An anti-fire flame-retardant plastic-encapsulated motor includes a rotating shaft, a rotor assembly, a plastic-encapsulated stator assembly, a front bearing support frame, and a rear bearing support frame.
  • the plastic-encapsulated stator assembly includes a stator core, a coil winding, an end insulation, and an injection-molded housing.
  • the injection-molded shell insulates the stator core, the coil winding and the end into a single body.
  • the rotating shaft is installed on the rotor assembly.
  • a plastic cavity is provided with a first cavity in the middle, and a first cavity is provided on the top of the first cavity.
  • the first through hole is in communication with the first cavity.
  • the rotor assembly is installed in the first cavity.
  • the rear bearing support frame is injection-molded into the injection housing and is located at the bottom of the injection housing.
  • Bearing housing with bearing chamber; the front bearing support frame is detachably installed on the top of the injection-molded housing.
  • the front bearing support frame is provided with a bearing housing of the bearing chamber.
  • the bearings are placed in the bearing chamber, and the rotating shaft is supported on the bearing.
  • the outer side wall of the injection-molded shell is provided with a wire outlet clip, and it further includes a front fire hood and a rear fire hood, and the front fire hood and the rear fire hood are respectively set at two ends of the injection-molded shell.
  • a third notch is provided on the rear fire hood, and the cable outlet clip passes through the third notch and is located at the bottom of the third notch.
  • a card slot is installed with a baffle, and the baffle is supported on the outlet clamp
  • the cross section of the baffle is arc-shaped, and the baffle is attached to the round outer wall of the injection-molded shell.
  • the front fire cover includes a third end plate and a second annular outer ring protruding from the third end plate.
  • the second annular outer ring forms a third cavity.
  • a fourth through hole is opened in the middle of the third end plate.
  • the fourth through hole is bent outward to form a third flange.
  • the rear fire cover includes a fourth end plate and a third annular outer ring protruding from the fourth end plate, the third annular outer ring forms a fourth cavity, and a third annular outer ring is provided with a third A notch, the inner diameter of the protrusion is larger than the outer diameter of the third annular outer ring, and a groove is formed between the protrusion and the injection-molded housing. It is pressed on the bottom end surface of the injection-molded casing, and the inner wall of the third annular outer ring surrounds the outer sidewall of the injection-molded casing.
  • the front bearing bracket is provided with a water outlet hole, and the third flange is provided with a fourth notch, and the fourth notch and the water outlet hole are correspondingly formed channels for forming water outlet.
  • a groove is provided on the outer side of the bearing seat of the rear bearing bracket, and a fifth through hole is opened in the middle of the fourth end plate.
  • the fifth through hole is bent inward to form a fourth flange.
  • a plurality of mounting feet are provided on the outer side wall of the injection-molded shell, and a number of fifth notches are provided on the second annular outer ring of the front fire protection cover.
  • the mounting feet pass through The fifth notch allows the mounting feet to protrude out of the second annular outer ring.
  • the front fire hood, rear fire hood and baffle are made of metal or refractory material.
  • the front fire hood and the rear fire hood are in interference fit with the injection-molded shell, respectively.
  • the utility model includes a rotating shaft, a rotor assembly, a plastic-encapsulated stator assembly, a front bearing support frame, and a rear bearing support frame.
  • the plastic-encapsulated stator assembly includes a stator core, a coil winding, an end insulation, and an injection-molded housing. The stator core, the coil winding and the end are insulated and injection-molded into one body.
  • the rotating shaft is mounted on the rotor assembly.
  • a plastic cavity is provided with a first cavity in the middle, and a first through hole is provided on the top of the first cavity. The first through hole is in communication with the first cavity, and the rotor assembly is installed in the first cavity.
  • the front bearing support frame and the rear bearing support frame are respectively provided with a bearing chamber, and a bearing is placed in the bearing chamber.
  • On the bearing it also includes a front fire hood and a rear fire hood.
  • the front fire hood is installed on one end face of the injection molded shell.
  • the rear fire hood encloses the other end face and the outer side wall of the injection molded shell.
  • the cover is provided with a connector.
  • the front fire cover includes a first end panel, and a second through hole is opened in the middle of the first end panel, and the second through hole is bent inward to form a first flange.
  • the rear fire cover includes a second end panel and an annular outer ring protruding from the second end panel, the annular outer ring forms a second cavity, and the bottom of the annular outer ring forms a plurality of connecting members.
  • a third through hole is provided in the middle of the second end panel, and the third through hole is bent outward to form a second flange, and a gap is formed between the second flange and the rear bearing support frame, and the length of the gap is L ⁇ 5mm, which can effectively prevent the motor from igniting an external load after the fire caused by the abnormal operation of the motor.
  • the utility model includes a rotating shaft, a rotor assembly, a plastic-encapsulated stator assembly, a front bearing support frame and a rear bearing support frame.
  • the plastic-encapsulated stator assembly includes a stator core, a coil winding, an end insulation, and an injection-molded housing. The stator core, the coil winding and the end are insulated and injection-molded into one body.
  • the rotating shaft is mounted on the rotor assembly.
  • a plastic cavity is provided with a first cavity in the middle, and a first through hole is provided on the top of the first cavity. The first through hole is in communication with the first cavity.
  • the rotor assembly is installed in the first cavity.
  • the rear bearing support frame is injection-molded into the injection housing and is located at the bottom of the injection housing.
  • the rear bearing support frame is provided with a bearing chamber.
  • the front bearing support frame is detachably installed on the top of the injection-molded housing.
  • the front bearing support frame is provided with a bearing housing of a bearing room. The bearings are placed in the bearing room, and the rotating shaft is supported on the bearing.
  • the injection-molded housing The outer side wall is provided with a wire outlet clip, which further includes a front fire hood and a rear fire hood, the front fire hood and the rear fire hood are respectively set at two ends of the injection molding shell, and the rear fire hood is provided on the There is a third notch, and the outlet clip passes through the third notch and is located at the bottom of the third notch.
  • baffle is installed in the slot, and the baffle is supported on the outlet clamp and covers the third gap, which can effectively prevent an abnormal load during the operation of the motor, which may ignite an external load after a fire near the outlet clamp, and has a good fire and flame retardant effect;
  • the front bearing bracket is provided with a water outlet hole, and the third flange is provided with a fourth notch, and the fourth notch and the water outlet hole are correspondingly formed water outlet channels, which play a role of installation and positioning and prevent Incorrect installation for easy drainage;
  • a groove is provided on the outer side of the bearing seat of the rear bearing bracket.
  • a fifth through hole is provided in the middle of the fourth end plate, and the fifth through hole is bent inward to form a fourth flange.
  • a plurality of mounting feet are provided on the outer side wall of the injection-molded shell, and a number of fifth notches are provided on the second annular outer ring of the front fire protection cover. Passing through the fifth notch and extending the mounting foot out of the second annular outer ring can strengthen the structural strength of the first fire hood and prevent deformation.
  • FIG. 1 is a perspective view of a first embodiment
  • FIG. 2 is another perspective view of the first embodiment
  • Embodiment 4 is another perspective perspective exploded view of Embodiment 1;
  • Fig. 6 is a sectional view taken along A-A in Fig. 5;
  • FIG. 7 is a partially enlarged view of B in FIG. 6;
  • FIG. 8 is a partially enlarged view of C in FIG. 6.
  • FIG. 9 is a perspective view of a second embodiment
  • Embodiment 11 is another perspective exploded view of Embodiment 2;
  • FIG. 12 is a partially enlarged view of D in FIG. 11; FIG.
  • FIG. 13 is a front view of the second embodiment
  • Fig. 14 is a sectional view taken along E-E in Fig. 13;
  • FIG. 15 is a partially enlarged view of F in FIG. 14;
  • 16 is a sectional view taken along the line G-G in FIG. 13;
  • FIG. 17 is a partially enlarged view of H in FIG. 16
  • this embodiment is a fire-proof and flame-retardant plastic encapsulated motor, which includes a rotating shaft 1, a rotor assembly 2, a plastic-encapsulated stator assembly 3, a front bearing support frame 4, and a rear bearing support frame 5.
  • the stator assembly 3 includes a stator core 31, a coil winding 32, an end insulation 33, and an injection-molded casing 34.
  • the injection-molded casing 34 injection-molds the stator core 31, the coil winding 32, and the end insulation 33, and the rotating shaft 1 is installed on the rotor.
  • a plastic cavity 35 is provided with a first cavity 35 in the middle, and a first through hole 351 is provided on the top of the first cavity 35.
  • the first through hole 351 is in communication with the first cavity 35.
  • the rotor assembly 2 is installed in the first cavity 35.
  • the front bearing support frame 4 and the rear bearing support frame 5 are respectively provided with bearing chambers 41 and 51, the bearing chambers 41 and 51 are provided with bearings 6, and the rotating shaft 1 Supported on the bearing 6, it also includes a front fire hood 7 and a rear fire hood 8, the front fire hood 7 is installed on one end face of the injection molding housing 34, and the rear fire hood 8 connects the other end face and the outside of the injection molding housing 34
  • the rear fire cover 8 is provided with a connecting member 80, and the rear fire cover 8 is sheathed in an injection-molded casing. At 3400 hours, the connecting member 80 of the rear fire hood 8 is snapped on the top surface of the front fire hood 7.
  • the front fire cover 7 includes a first end panel 71, and a second through hole 72 is opened in the middle of the first end panel 71.
  • the second through hole 72 bends inward to form a first flange 73.
  • the current fire cover 7 is installed in injection molding.
  • the bottom surface of the first end plate 71 is pressed against the end surface of the injection-molded case 34, the first flange 73 extends into the first through hole 351, and the first flange 73 is closely attached to the first through hole 351 on the inner wall surface.
  • the rear fire cover 8 includes a second end panel 81 and an annular outer ring 82 protruding from the second end panel 81.
  • the annular outer ring 82 forms a second cavity 83.
  • the bottom of the annular outer ring 82 forms several
  • the connecting member 80 when the rear fireproof cover 8 is installed on the injection-molded casing 34, the bottom surface of the second end panel 81 is pressed against the end surface of the injection-molded casing 34, and the inner surface of the annular outer ring 82 is in close contact with the injection-molded casing 34.
  • the connecting member 80 is buckled on the top surface of the front fire cover 7.
  • the connecting member 80 is a rivet.
  • a third through hole 84 is provided in the middle of the second end panel 81, and the third through hole 84 is bent outward to form a second flange 85, and a gap 86 is formed between the second flange 85 and the rear bearing support frame 5, The length L of the gap is less than 5 mm.
  • a number of mounting feet 36 are provided on the outer side wall of the injection-molded casing 34, and a plurality of first notches 821 are provided on the annular outer ring 82 of the rear fire hood 8.
  • the first notches 821 are correspondingly provided to the mounting feet 36.
  • a cable outlet clamp 37 is provided on the outer side wall of the injection-molded casing 34, and a second notch 822 is provided on the annular outer ring 82.
  • the second notch 822 and the cable exit clamp 37 are correspondingly arranged.
  • the second notch 822 passes through the outlet clip 37, and the outlet clip 37 extends out of the rear fire cover 8.
  • An annular protrusion 341 is provided on one end surface of the injection-molded housing 34, the front bearing support frame 4 is injection-molded integrally with the plastic-molded stator assembly 3, and the rear bearing support frame 5 is installed on the annular protrusion of the injection-molded housing 34 From 341.
  • the thickness of the front fire hood 7 and the thickness of the rear fire hood 8 are greater than 0.25 mm and less than 3 mm.
  • the front fire shield 7 and the rear fire shield 8 are made of metal or refractory material.
  • a fire-proof flame-retardant plastic encapsulated motor includes a rotating shaft 1, a rotor assembly 2, a plastic-encapsulated stator assembly 3, a front bearing support frame 4, and a rear bearing support frame 5.
  • the plastic-encapsulated stator assembly 3 includes The stator core 31, the coil winding 32, the end insulation 33 and the injection-molded casing 34 are injection-molded into the stator core 31, the coil winding 32 and the end insulation 33, and the rotating shaft 1 is installed on the rotor assembly 2.
  • a first cavity 35 is provided in the middle of the molded stator assembly 3, and a first through hole 351 is provided on the top of the first cavity 35. The first through hole 351 is in communication with the first cavity 35.
  • the rotor assembly 2 is installed in the first cavity 35, the rear bearing support frame 5 is injection-molded with the injection-molded casing 34 and is located at the bottom of the injection-molded casing 34; the rear bearing support frame 5 is provided with a bearing seat 52 with a bearing chamber 51; the front bearing support The frame 4 is detachably mounted on the top of the injection-molded housing 34.
  • the front bearing support frame 4 is provided with a bearing housing 42 of a bearing chamber 41. Bearings 41 and 51 are respectively placed with a bearing 6, and the rotating shaft 1 is supported on the bearing 6.
  • a cable outlet 37 is provided on the outer side wall of the injection-molded casing 34, and it also includes a front fireproof 7 and rear fire hood 8, the front fire hood 7 and the rear fire hood 8 are respectively sleeved at two ends of the injection molding casing 34, the rear fire hood 8 is provided with a third notch 87, and the outlet clip 37 passes through the first
  • the three notches 87 are located at the bottom of the third notch 87.
  • Two protrusions 88 are provided on both sides of the third notch 87.
  • a protrusion 89 is formed between the protrusion 88 and the injection-molded housing 34.
  • the baffle 10 is supported on the outlet clip 37 and covers the third cutout 87.
  • the cross section of the blocking piece 10 is arc-shaped, and the curved blocking piece 10 is affixed to the circular outer wall of the injection-molded casing 34.
  • the front fire cover 7 includes a third end plate 74 and a second annular outer ring 75 protruding from the third end plate 74.
  • the second annular outer ring 75 forms a third cavity 821, and the third end plate 74 is in the middle.
  • a fourth through hole 76 is provided, and the fourth through hole 76 is bent outward to form a third flange 77.
  • the rear fire shield 8 includes a fourth end plate 811 and a third annular outer ring 812 protruding from the fourth end plate 811.
  • the third annular outer ring 812 forms a fourth cavity 8121, and the third annular outer ring
  • a third notch 87 is provided on the ring 812.
  • the inner diameter of the protrusion 88 is larger than the outer diameter of the third annular outer ring 812.
  • a groove 89 is formed between the protrusion 88 and the injection-molded housing 34.
  • the front bearing bracket 4 is provided with a water outlet hole 43, and the third flange 77 is provided with a fourth notch 771.
  • the fourth notch 771 and the water outlet hole 43 are correspondingly formed channels for forming water outlet.
  • a groove 53 is provided on the outer side of the bearing seat 52 of the rear bearing bracket 5.
  • a fifth through hole 813 is formed in the middle of the fourth end plate 811, and the fifth through hole 813 is bent inward to form a fourth flange 814.
  • a number of mounting legs 36 are provided on the outer side wall of the injection-molded casing 34, and a number of fifth notches 751 are provided on the second annular outer ring 75 of the front fire protection cover 7.
  • the mounting foot 36 passes through the fifth notch 751, so that the mounting foot 36 projects out of the second annular outer ring 75.
  • the front fire cover 7, the rear fire cover 8 and the baffle 10 are made of metal or a refractory material.
  • the front fire hood 7 and the rear fire hood 8 are in interference fit with the injection-molded casing 34, respectively.

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Abstract

本实用新型公开了一种防着火阻燃塑封电机,包括转轴、转子组件、塑封定子组件、前轴承支撑架和后轴承支撑架,塑封定子组件包括定子铁芯、线圈绕组、端部绝缘和注塑外壳,所述注塑外壳将定子铁芯、线圈绕组和端部绝缘注塑成一体,转轴安装在转子组件上,它还包括前防火罩和后防火罩,前防火罩安装在注塑外壳的一端面,后防火罩将注塑外壳的另一端面和外侧壁包裹住,可以有效防止电机运行时发生异常导致起火,起火后有可能引燃外部负载,防火阻燃效果好,后防火罩上设有连接件,当后防火罩套装在注塑外壳后,所述后防火罩的连接件卡扣在前防火罩的顶面,组装简单方便,连接牢靠。

Description

一种防着火阻燃塑封电机 技术领域:
本实用新型涉及一种防着火阻燃塑封电机。
背景技术:
现有的塑封电机包括包括转轴、转子组件、塑封定子组件和轴承支撑架,所述的塑封定子组件包括定子铁芯、定子绕组和注塑外壳,转轴安装在转子组件上,塑封定子组件中间设有第一空腔,转子组件安装在第一空腔里,第一空腔的两端设有台阶,轴承支撑架安装在台阶上,轴承支撑架设置轴承室,轴承安装在轴承室里面,注塑外壳的两端分别套设有防火罩,防火罩与注塑外壳之间紧密贴合在一起,由于电机运行时产生振动,长时间工作下,防火罩与注塑外壳之间单单通过紧密贴合容易松脱,导致电机失去防火效果,起火后有可能引燃外部负载。
另外,所述注塑外壳上设有出线夹,注塑外壳的两端分别套设有防火罩,其中一防火罩上设有缺口,为了防止防火罩和出线夹之间受到干涉,使出线夹附近范围没有受到防火罩包裹裸露在外,当出线夹起火时有可能会引燃外部的负载,整机的防火阻燃效果差
发明内容:
本实用新型的目的是提供一种防着火阻燃塑封电机,解决现有电机运行时产生振动,长时间工作下,防火罩与注塑外壳之间单单通过紧密贴合容易松脱,导致电机失去防火效果,起火后有可能引燃外部负载的问题。
本实用新型的进一步目的是提供一种防着火阻燃塑封电机,解决现有电机的出线夹附近范围没有受到防火罩包裹裸露在外导致电机起火后有可能引燃外部的负载的问题。
本实用新型的目的是通过下述技术方案予以实现的。
一种防着火阻燃塑封电机,包括转轴、转子组件、塑封定子组件、前轴承支撑架和后轴承支撑架,所述塑封定子组件包括定子铁芯、线圈绕组、端部绝 缘和注塑外壳,所述注塑外壳将定子铁芯、线圈绕组和端部绝缘注塑成一体,转轴安装在转子组件上,塑封定子组件中间设有第一空腔,所述第一空腔的顶部上设有第一通孔,所述第一通孔与第一空腔是连通的,转子组件安装在第一空腔里,所述前轴承支撑架和后轴承支撑架上分别设置有轴承室,轴承室里放置有轴承,转轴支承在轴承上,它还包括前防火罩和后防火罩,所述前防火罩安装在注塑外壳的一端面,所述后防火罩将注塑外壳的另一端面和外侧壁包裹住,所述后防火罩上设有连接件,当后防火罩套装在注塑外壳时,所述后防火罩的连接件卡扣在前防火罩的顶面。
前防火罩包括第一端面板,第一端面板中间开设有第二通孔,所述第二通孔往内折弯出第一翻边,当前防火罩安装在注塑外壳时,所述第一端面板的底面压在注塑外壳的端面上,所述第一翻边伸入第一通孔内,第一翻边紧贴在第一通孔的内壁面上。
所述后防火罩包括第二端面板和从第二端面板凸出的第一环形外圈,所述第一环形外圈形成第二空腔,所述第一环形外圈的底部形成若干连接件,当后防火罩安装在注塑外壳时,所述第二端面板的底面压在注塑外壳的端面上,所述第一环形外圈的内侧面紧贴着注塑外壳的外侧壁,所述连接件卡扣在前防火罩的顶面。
所述连接件是铆扣。
第二端面板中间开设有第三通孔,所述第三通孔往外折弯出第二翻边,所述第二翻边与后轴承支撑架之间形成间隙,所述间隙的长度L<5mm。
所述注塑外壳的外侧壁上设有若干安装脚,所述后防火罩的第一环形外圈上设有若干个第一缺口,所述第一缺口与安装脚对应设置,当后防火罩套装在注塑外壳时,第一缺口穿过安装脚,所述安装脚伸出后防火罩外。
所述注塑外壳的外侧壁上设有出线夹,所述第一环形外圈上设有第二缺口,所述第二缺口与出线夹是对应设置,当后防火罩套装在注塑外壳时,第二缺口穿过出线夹,所述出线夹伸出后防火罩外。
所述注塑外壳的一端面上设有环形凸起,所述前轴承支撑架是与塑封定子组件是注塑成一体的,所述后轴承支撑架安装在注塑外壳的环形凸起上。
所述前防火罩的厚度和后防火罩的厚度大于0.25mm,且小于3mm。
所述前防火罩和后防火罩是由金属或耐火材料制造而成。
一种防着火阻燃塑封电机,包括转轴、转子组件、塑封定子组件、前轴承支撑架和后轴承支撑架,所述塑封定子组件包括定子铁芯、线圈绕组、端部绝缘和注塑外壳,所述注塑外壳将定子铁芯、线圈绕组和端部绝缘注塑成一体,转轴安装在转子组件上,塑封定子组件中间设有第一空腔,所述第一空腔的顶部上设有第一通孔,所述第一通孔与第一空腔是连通的,转子组件安装在第一空腔里,后轴承支撑架与注塑外壳注塑成一体且位于注塑外壳的底部,后轴承支撑架上设置带有轴承室的轴承座;前轴承支撑架可拆装地安装在注塑外壳的顶部,前轴承支撑架上设置有轴承室的轴承座,轴承室里分别放置有轴承,转轴支承在轴承上,所述注塑外壳的外侧壁上设有出线夹,它还包括前防火罩和后防火罩,所述前防火罩和后防火罩分别套装在注塑外壳的两端,所述后防火罩上设有第三缺口,所述出线夹穿过第三缺口并处于第三缺口的底部,所述第三缺口的两侧设有凸起,所述凸起与注塑外壳之间形成一卡槽,卡槽里卡装挡片,所述挡片支承在出线夹上并遮盖第三缺口。
挡片的横截面是弧形,弧形的挡片贴在注塑外壳的圆形的外侧壁。
所述前防火罩包括第三端板和从第三端板凸出的第二环形外圈,第二环形外圈形成第三空腔,所述第三端板中间开设有第四通孔,所述第四通孔往外折弯出第三翻边,当前防火罩安装在注塑外壳时,所述第三端板的底面压在注塑外壳的顶端面上,所述第二环形外圈包裹注塑外壳的外侧壁,所述第三翻边套在前轴承支架的外侧。
所述后防火罩包括第四端板和从第四端板凸出的第三环形外圈,所述第三环形外圈形成第四空腔,所述第三环形外圈上设有第三缺口,所述凸起的内径比第三环形外圈的外径大,所述凸起与注塑外壳之间形成卡槽,当后防火罩安装 在注塑外壳时,所述第四端板的底面压在注塑外壳的底端面上,所述第三环形外圈的内壁包裹注塑外壳的外侧壁。
所述前轴承支架上设有出水孔,所述第三翻边上开设有第四缺口,所述第四缺口和出水孔是对应设置的形成出水的通道。
所述后轴承支架的轴承座外侧设有一凹槽,所述第四端板中间开设有第五通孔,所述第五通孔往内折弯出第四翻边,当后防火罩安装在注塑外壳时,所述第四端板的底面压在注塑外壳的另一端面上,所述第四翻边伸入到后轴承支架的凹槽里。
所述注塑外壳的外侧壁上设有若干安装脚,所述前防火罩的第二环形外圈上设有若干个第五缺口,当前防火罩安装在注塑外壳上时,所述安装脚穿过第五缺口,使安装脚伸出第二环形外圈外。
所述前防火罩、后防火罩和挡片是由金属或耐火材料制造而成。
所述前防火罩和后防火罩分别与注塑外壳过盈配合。
本实用新型与现有技术相比,具有如下效果:
1)本实用新型包括转轴、转子组件、塑封定子组件、前轴承支撑架和后轴承支撑架,所述塑封定子组件包括定子铁芯、线圈绕组、端部绝缘和注塑外壳,所述注塑外壳将定子铁芯、线圈绕组和端部绝缘注塑成一体,转轴安装在转子组件上,塑封定子组件中间设有第一空腔,所述第一空腔的顶部上设有第一通孔,所述第一通孔与第一空腔是连通的,转子组件安装在第一空腔里,所述前轴承支撑架和后轴承支撑架上分别设置有轴承室,轴承室里放置有轴承,转轴支承在轴承上,它还包括前防火罩和后防火罩,所述前防火罩安装在注塑外壳的一端面,所述后防火罩将注塑外壳的另一端面和外侧壁包裹住,所述后防火罩上设有连接件,当后防火罩套装在注塑外壳时,所述后防火罩的连接件卡扣在前防火罩的顶面,组装简单方便,连接牢靠;
2)前防火罩包括第一端面板,第一端面板中间开设有第二通孔,所述第二 通孔往内折弯出第一翻边,当前防火罩安装在注塑外壳时,所述第一端面板的底面压在注塑外壳的端面上,所述第一翻边伸入第一通孔内,第一翻边紧贴在第一通孔的内壁面上,组装简单方便,连接牢固;
3)所述后防火罩包括第二端面板和从第二端面板凸出的环形外圈,所述环形外圈形成第二空腔,所述环形外圈的底部形成若干连接件,当后防火罩安装在注塑外壳时,所述第二端面板的底面压在注塑外壳的端面上,所述环形外圈的内侧面紧贴着注塑外壳的外侧壁,所述连接件卡扣在前防火罩的顶面,组装简单方便,连接牢固;
4)第二端面板中间开设有第三通孔,所述第三通孔往外折弯出第二翻边,所述第二翻边与后轴承支撑架之间形成间隙,所述间隙的长度L<5mm,可以有效防止电机运行时发生异常导致起火后有可能引燃外部负载,防火阻燃效果好。
5)本实用新型包括转轴、转子组件、塑封定子组件、前轴承支撑架和后轴承支撑架,所述塑封定子组件包括定子铁芯、线圈绕组、端部绝缘和注塑外壳,所述注塑外壳将定子铁芯、线圈绕组和端部绝缘注塑成一体,转轴安装在转子组件上,塑封定子组件中间设有第一空腔,所述第一空腔的顶部上设有第一通孔,所述第一通孔与第一空腔是连通的,转子组件安装在第一空腔里,后轴承支撑架与注塑外壳注塑成一体且位于注塑外壳的底部,后轴承支撑架上设置带有轴承室的轴承座;前轴承支撑架可拆装地安装在注塑外壳的顶部,前轴承支撑架上设置有轴承室的轴承座,轴承室里分别放置有轴承,转轴支承在轴承上,所述注塑外壳的外侧壁上设有出线夹,它还包括前防火罩和后防火罩,所述前防火罩和后防火罩分别套装在注塑外壳的两端,所述后防火罩上设有第三缺口,所述出线夹穿过第三缺口并处于第三缺口的底部,所述第三缺口的两侧设有凸起,所述凸起与注塑外壳之间形成一卡槽,卡槽里卡装挡片,所述挡片支承在出线夹上并遮盖第三缺口,可以有效防止电机运行时发生异常导致出线夹附近起火后可能引燃外部负载,防火阻燃效果好;
6)所述前轴承支架上设有出水孔,所述第三翻边上开设有第四缺口,所述 第四缺口和出水孔是对应设置的形成出水的通道,起到安装定位作用且防止安装错误,便于排水;
7)所述后轴承支架的轴承座外侧设有一凹槽,所述第四端板中间开设有第五通孔,所述第五通孔往内折弯出第四翻边,当后防火罩安装在注塑外壳时,所述第四端板的底面压在注塑外壳的另一端面上,所述第四翻边伸入到后轴承支架的凹槽里,安装第二防火罩时可以防止与后轴承支架发生干涉;
8)所述注塑外壳的外侧壁上设有若干安装脚,所述前防火罩的第二环形外圈上设有若干个第五缺口,当前防火罩安装在注塑外壳上时,所述安装脚穿过第五缺口,使安装脚伸出第二环形外圈外,可以加强第一防火罩结构强度,防止变形。
附图说明:
图1是实施例一的立体图;
图2是实施例一的另一角度立体图;
图3是实施例一的立体分解图;
图4是实施例一的另一角度立体图分解图;
图5是实施例一的正视图;
图6是图5中A-A的剖视图;
图7是图6中B的局部放大图;
图8是图6中C的局部放大图。
图9是实施例二的立体图;
图10是实施例二的分解图;
图11是实施例二的另一角度分解图;
图12是图11中D的局部放大图;
图13是实施例二的正视图;
图14是图13中E-E的剖面图;
图15是图14中F的局部放大图;
图16是图13中G-G的剖面图;
图17是图16中H的局部放大图
具体实施方式:
下面通过具体实施例并结合附图对本实用新型作进一步详细的描述。
实施例一:
如图1至图8所述,本实施例是一种防着火阻燃塑封电机,包括转轴1、转子组件2、塑封定子组件3、前轴承支撑架4和后轴承支撑架5,所述塑封定子组件3包括定子铁芯31、线圈绕组32、端部绝缘33和注塑外壳34,所述注塑外壳34将定子铁芯31、线圈绕组32和端部绝缘33注塑成一体,转轴1安装在转子组件2上,塑封定子组件3中间设有第一空腔35,所述第一空腔35的顶部上设有第一通孔351,所述第一通孔351与第一空腔35是连通的,转子组件2安装在第一空腔35里,所述前轴承支撑架4和后轴承支撑架5上分别设置有轴承室41、51,轴承室41、51里放置有轴承6,转轴1支承在轴承6上,它还包括前防火罩7和后防火罩8,所述前防火罩7安装在注塑外壳34的一端面,所述后防火罩8将注塑外壳34的另一端面和外侧壁包裹住,所述后防火罩8上设有连接件80,当后防火罩8套装在注塑外壳34时,所述后防火罩8的连接件80卡扣在前防火罩7的顶面。
前防火罩7包括第一端面板71,第一端面板71中间开设有第二通孔72,所述第二通孔72往内折弯出第一翻边73,当前防火罩7安装在注塑外壳34时,所述第一端面板71的底面压在注塑外壳34的端面上,所述第一翻边73伸入第一通孔351内,第一翻边73紧贴在第一通孔351的内壁面上。
所述后防火罩8包括第二端面板81和从第二端面板81凸出的环形外圈82,所述环形外圈82形成第二空腔83,所述环形外圈82的底部形成若干连接件80,当后防火罩8安装在注塑外壳34时,所述第二端面板81的底面压在注塑外壳 34的端面上,所述环形外圈82的内侧面紧贴着注塑外壳34的外侧壁,所述连接件80卡扣在前防火罩7的顶面。
所述连接件80是铆扣。
第二端面板81中间开设有第三通孔84,所述第三通孔84往外折弯出第二翻边85,所述第二翻边85与后轴承支撑架5之间形成间隙86,所述间隙的长度L<5mm。
所述注塑外壳34的外侧壁上设有若干安装脚36,所述后防火罩8的环形外圈82上设有若干个第一缺口821,所述第一缺口821与安装脚36对应设置,当后防火罩8套装在注塑外壳34时,第一缺口821穿过安装脚36,所述安装脚36伸出后防火罩8外。
所述注塑外壳34的外侧壁上设有出线夹37,所述环形外圈82上设有第二缺口822,所述第二缺口822与出线夹37是对应设置,当后防火罩8套装在注塑外壳34时,第二缺口822穿过出线夹37,所述出线夹37伸出后防火罩8外。
所述注塑外壳34的一端面上设有环形凸起341,所述前轴承支撑架4是与塑封定子组件3是注塑成一体的,所述后轴承支撑架5安装在注塑外壳34的环形凸起341上。
所述前防火罩7的厚度和后防火罩8的厚度大于0.25mm,且小于3mm。
所述前防火罩7和后防火罩8是由金属或耐火材料制造而成。
实施例二:
如图9至图17所示,一种防着火阻燃塑封电机,包括转轴1、转子组件2、塑封定子组件3、前轴承支撑架4和后轴承支撑架5,所述塑封定子组件3包括定子铁芯31、线圈绕组32、端部绝缘33和注塑外壳34,所述注塑外壳34将定子铁芯31、线圈绕组32和端部绝缘33注塑成一体,转轴1安装在转子组件2上,塑封定子组件3中间设有第一空腔35,所述第一空腔35的顶部上设有第一通孔351,所述第一通孔351与第一空腔35是连通的,转子组件2安装在第一 空腔35里,后轴承支撑架5与注塑外壳34注塑成一体且位于注塑外壳34的底部,后轴承支撑架5上设置带有轴承室51的轴承座52;前轴承支撑架4可拆装地安装在注塑外壳34的顶部,前轴承支撑架4上设置有轴承室41的轴承座42,轴承室41、51里分别放置有轴承6,转轴1支承在轴承6上,所述注塑外壳34的外侧壁上设有出线夹37,它还包括前防火罩7和后防火罩8,所述前防火罩7和后防火罩8分别套装在注塑外壳34的两端,所述后防火罩8上设有第三缺口87,所述出线夹37穿过第三缺口87并处于第三缺口87的底部,所述第三缺口87的两侧设有凸起88,所述凸起88与注塑外壳34之间形成一卡槽89,卡槽89里卡装挡片10,所述挡片10支承在出线夹37上并遮盖第三缺口87。
挡片10的横截面是弧形,弧形的挡片10贴在注塑外壳34的圆形的外侧壁。
所述前防火罩7包括第三端板74和从第三端板74凸出的第二环形外圈75,第二环形外圈75形成第三空腔821,所述第三端板74中间开设有第四通孔76,所述第四通孔76往外折弯出第三翻边77,当前防火罩7安装在注塑外壳34时,所述第三端板74的底面压在注塑外壳34的顶端面上,所述第二环形外圈75包裹注塑外壳34的外侧壁,所述第三翻边77套在前轴承支架4的外侧。
所述后防火罩8包括第四端板811和从第四端板811凸出的第三环形外圈812,所述第三环形外圈812形成第四空腔8121,所述第三环形外圈812上设有第三缺口87,所述凸起88的内径比第三环形外圈812的外径大,所述凸起88与注塑外壳34之间形成卡槽89,当后防火罩8安装在注塑外壳34时,所述第四端板811的底面压在注塑外壳34的底端面上,所述第三环形外圈812的内壁包裹注塑外壳34的外侧壁。
所述前轴承支架4上设有出水孔43,所述第三翻边77上开设有第四缺口771,所述第四缺口771和出水孔43是对应设置的形成出水的通道。
所述后轴承支架5的轴承座52外侧设有一凹槽53,所述第四端板811中间开设有第五通孔813,所述第五通孔813往内折弯出第四翻边814,当后防火罩8安装在注塑外壳34时,所述第四端板811的底面压在注塑外壳34的另一端面 上,所述第四翻边814伸入到后轴承支架5的凹槽53里。
所述注塑外壳34的外侧壁上设有若干安装脚36,所述前防火罩7的第二环形外圈75上设有若干个第五缺口751,当前防火罩7安装在注塑外壳34上时,所述安装脚36穿过第五缺口751,使安装脚36伸出第二环形外圈75外。
所述前防火罩7、后防火罩8和挡片10是由金属或耐火材料制造而成。
所述前防火罩7和后防火罩8分别与注塑外壳34过盈配合。
以上实施例为本发明的较佳实施方式,但本发明的实施方式不限于此,其他任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化,均为等效的置换方式,都包含在本发明的保护范围之内

Claims (18)

  1. 一种防着火阻燃塑封电机,包括转轴(1)、转子组件(2)、塑封定子组件(3)、前轴承支撑架(4)和后轴承支撑架(5),所述塑封定子组件(3)包括定子铁芯(31)、线圈绕组(32)、端部绝缘(33)和注塑外壳(34),所述注塑外壳(34)将定子铁芯(31)、线圈绕组(32)和端部绝缘(33)注塑成一体,转轴(1)安装在转子组件(2)上,塑封定子组件(3)中间设有第一空腔(35),所述第一空腔(35)的顶部上设有第一通孔(351),所述第一通孔(351)与第一空腔(35)是连通的,转子组件(2)安装在第一空腔(35)里,所述前轴承支撑架(4)和后轴承支撑架(5)上分别设置有轴承室(41、51),轴承室(41、51)里放置有轴承(6),转轴(1)支承在轴承(6)上,其特征在于:它还包括前防火罩(7)和后防火罩(8),所述前防火罩(7)安装在注塑外壳(34)的一端面,所述后防火罩(8)将注塑外壳(34)的另一端面和外侧壁包裹住,所述后防火罩(8)上设有连接件(80),当后防火罩(8)套装在注塑外壳(34)时,所述后防火罩(8)的连接件(80)卡扣在前防火罩(7)的顶面。
  2. 根据权利要求1所述的一种防着火阻燃塑封电机,其特征在于:前防火罩(7)包括第一端面板(71),第一端面板(71)中间开设有第二通孔(72),所述第二通孔(72)往内折弯出第一翻边(73),当前防火罩(7)安装在注塑外壳(34)时,所述第一端面板(71)的底面压在注塑外壳(34)的端面上,所述第一翻边(73)伸入第一通孔(351)内,第一翻边(73)紧贴在第一通孔(351)的内壁面上。
  3. 根据权利要求1或2所述的一种防着火阻燃塑封电机,其特征在于:所述后防火罩(8)包括第二端面板(81)和从第二端面板(81)凸出的第一环形外圈(82),所述第一环形外圈(82)形成第二空腔(83),所述第一环形外圈(82)的底部形成若干连接件(80),当后防火罩(8)安装在注塑外壳(34) 时,所述第二端面板(81)的底面压在注塑外壳(34)的端面上,所述第一环形外圈(82)的内侧面紧贴着注塑外壳(34)的外侧壁,所述连接件(80)卡扣在前防火罩(7)的顶面。
  4. 根据权利要求3所述的一种防着火阻燃塑封电机,其特征在于:所述连接件(80)是铆扣。
  5. 根据权利要求3所述的一种防着火阻燃塑封电机,其特征在于:第二端面板(81)中间开设有第三通孔(84),所述第三通孔(84)往外折弯出第二翻边(85),所述第二翻边(85)与后轴承支撑架(5)之间形成间隙(86),所述间隙的长度L<5mm。
  6. 根据权利要求3所述的一种防着火阻燃塑封电机,其特征在于:所述注塑外壳(34)的外侧壁上设有若干安装脚(36),所述后防火罩(8)的第一环形外圈(82)上设有若干个第一缺口(821),所述第一缺口(821)与安装脚(36)对应设置,当后防火罩(8)套装在注塑外壳(34)时,第一缺口(821)穿过安装脚(36),所述安装脚(36)伸出后防火罩(8)外。
  7. 根据权利要求6所述的一种防着火阻燃塑封电机,其特征在于:所述注塑外壳(34)的外侧壁上设有出线夹(37),所述第一环形外圈(82)上设有第二缺口(822),所述第二缺口(822)与出线夹(37)是对应设置,当后防火罩(8)套装在注塑外壳(34)时,第二缺口(822)穿过出线夹(37),所述出线夹(37)伸出后防火罩(8)外。
  8. 根据权利要求7所述的一种防着火阻燃塑封电机,其特征在于:所述注塑外壳(34)的一端面上设有环形凸起(341),所述前轴承支撑架(4)是与塑封定子组件(3)是注塑成一体的,所述后轴承支撑架(5)安装在注塑外壳(34)的环形凸起(341)上。
  9. 根据权利要求8所述的一种防着火阻燃塑封电机,其特征在于:所述前防火罩(7)的厚度和后防火罩(8)的厚度大于0.25mm,且小于3mm。
  10. 根据权利要求9所述的一种防着火阻燃塑封电机,其特征在于:所述 前防火罩(7)和后防火罩(8)是由金属或耐火材料制造而成。
  11. 一种防着火阻燃塑封电机,包括转轴(1)、转子组件(2)、塑封定子组件(3)、前轴承支撑架(4)和后轴承支撑架(5),所述塑封定子组件(3)包括定子铁芯(31)、线圈绕组(32)、端部绝缘(33)和注塑外壳(34),所述注塑外壳(34)将定子铁芯(31)、线圈绕组(32)和端部绝缘(33)注塑成一体,转轴(1)安装在转子组件(2)上,塑封定子组件(3)中间设有第一空腔(35),所述第一空腔(35)的顶部上设有第一通孔(351),所述第一通孔(351)与第一空腔(35)是连通的,转子组件(2)安装在第一空腔(35)里,后轴承支撑架(5)与注塑外壳(34)注塑成一体且位于注塑外壳(34)的底部,后轴承支撑架(5)上设置带有轴承室(51)的轴承座(52);前轴承支撑架(4)可拆装地安装在注塑外壳(34)的顶部,前轴承支撑架(4)上设置有轴承室(41)的轴承座(42),轴承室(41、51)里分别放置有轴承(6),转轴(1)支承在轴承(6)上,所述注塑外壳(34)的外侧壁上设有出线夹(37),其特征在于:它还包括前防火罩(7)和后防火罩(8),所述前防火罩(7)和后防火罩(8)分别套装在注塑外壳(34)的两端,所述后防火罩(8)上设有第三缺口(87),所述出线夹(37)穿过第三缺口(87)并处于第三缺口(87)的底部,所述第三缺口(87)的两侧设有凸起(88),所述凸起(88)与注塑外壳(34)之间形成一卡槽(89),卡槽(89)里卡装挡片(10),所述挡片(10)支承在出线夹(37)上并遮盖第三缺口(87)。
  12. 根据权利要求11所述的一种防着火阻燃塑封电机,其特征在于:挡片(10)的横截面是弧形,弧形的挡片(10)贴在注塑外壳(34)的圆形的外侧壁。
  13. 根据权利要求11或12所述的一种防着火阻燃塑封电机,其特征在于:所述前防火罩(7)包括第三端板(74)和从第三端板(74)凸出的第二环形外圈(75),第二环形外圈(75)形成第三空腔(821),所述第三端板(74)中间开设有第四通孔(76),所述第四通孔(76)往外折弯出第三翻边(77), 当前防火罩(7)安装在注塑外壳(34)时,所述第三端板(74)的底面压在注塑外壳(34)的顶端面上,所述第二环形外圈(75)包裹注塑外壳(34)的外侧壁,所述第三翻边(77)套在前轴承支架(4)的外侧。
  14. 根据权利要求13所述的一种防着火阻燃塑封电机,其特征在于:所述后防火罩(8)包括第四端板(811)和从第四端板(811)凸出的第三环形外圈(812),所述第三环形外圈(812)形成第四空腔(8121),所述第三环形外圈(812)上设有第三缺口(87),所述凸起(88)的内径比第三环形外圈(812)的外径大,所述凸起(88)与注塑外壳(34)之间形成卡槽(89),当后防火罩(8)安装在注塑外壳(34)时,所述第四端板(811)的底面压在注塑外壳(34)的底端面上,所述第三环形外圈(812)的内壁包裹注塑外壳(34)的外侧壁。
  15. 根据权利要求14所述的一种防着火阻燃塑封电机,其特征在于:所述前轴承支架(4)上设有出水孔(43),所述第三翻边(77)上开设有第四缺口(771),所述第四缺口(771)和出水孔(43)是对应设置的形成出水的通道。
  16. 根据权利要求14所述的一种防着火阻燃塑封电机,其特征在于:所述后轴承支架(5)的轴承座(52)外侧设有一凹槽(53),所述第四端板(811)中间开设有第五通孔(813),所述第五通孔(813)往内折弯出第四翻边(814),当后防火罩(8)安装在注塑外壳(34)时,所述第四端板(811)的底面压在注塑外壳(34)的另一端面上,所述第四翻边(814)伸入到后轴承支架(5)的凹槽(53)里。
  17. 根据权利要求16所述的一种防着火阻燃塑封电机,其特征在于:所述注塑外壳(34)的外侧壁上设有若干安装脚(36),所述前防火罩(7)的第二环形外圈(75)上设有若干个第五缺口(751),当前防火罩(7)安装在注塑外壳(34)上时,所述安装脚(36)穿过第五缺口(751),使安装脚(36)伸出第二环形外圈(75)外。
  18. 根据权利要求17所述的一种防着火阻燃塑封电机,其特征在于:所述前防火罩(7)、后防火罩(8)和挡片(10)是由金属或耐火材料制造而成。 根据权利要求18所述的一种防着火阻燃塑封电机,其特征在于:所述前防火罩(7)和后防火罩(8)分别与注塑外壳(34)过盈配合。
PCT/CN2018/103761 2018-05-29 2018-09-03 一种防着火阻燃塑封电机 WO2019227753A1 (zh)

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CN201256336Y (zh) * 2008-09-04 2009-06-10 中山大洋电机股份有限公司 一种塑封电机温度传感器的安装结构
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