CN207819613U

CN207819613U - A kind of high stable permanent-magnet DC brush micro machine

Info

Publication number: CN207819613U
Application number: CN201820010972.2U
Authority: CN
Inventors: 陈沾富; 王振兴; 余于金
Original assignee: Jiangxi Pengfei Mechanical And Electrical Manufacturing Co Ltd
Current assignee: Jiangxi Pengfei Mechanical And Electrical Manufacturing Co Ltd
Priority date: 2018-01-04
Filing date: 2018-01-04
Publication date: 2018-09-04
Anticipated expiration: 2028-01-04

Abstract

The utility model discloses a kind of high stable permanent-magnet DC brush micro machines, including protecgulum, the protecgulum is fixed on casing one end, the casing other end is connected with rear cover, it is embedded with positioning sleeve at the protecgulum port, the positioning sleeve is fixed with armature spindle one end, the armature spindle other end is movably connected in bearing, the bearing is arranged among rear cover, periphery is connected with rotor pressing ring among the armature spindle, it is fixedly connected with rotor core between the rotor pressing ring, it is connected with rotor windings in the rotor core, the casing internal is equipped with magnetic shoe corresponding with rotor core, the magnetic shoe is placed in limit card slot；The motor lead-out wire through-hole that the utility model passes through setting, motor wire is connected across motor lead-out wire through-hole with the external world, in through hole, conducting wire is fixed by conducting wire geometrical clamp, conducting wire is avoided to be squeezed or led by external force to drag and cause lead-out wire deformation damaged, the disengaging with motor itself is even resulted in, the stability in use of motor is improved.

Description

A kind of high stable permanent-magnet DC brush micro machine

Technical field

The utility model is related to motor device technical field, specially a kind of high stable permanent-magnet DC brush micro machine.

Background technology

Magneto is the general designation of a major class product, wherein electronic comprising permanent-magnet DC brush motor, permanent-magnet DC brushless Machine, permanent magnet synchronous motor, these three motors are all known products, are widely used in the every aspect of life.Motor is according to farad Electromagnetic induction principle is converted into a kind of device of mechanical energy by electric energy.Direct current generator is that stator provides magnetic field by permanent magnetism, magnetic shoe A kind of motor.The fixation of existing motor vehicle DC motor stator magnetic shoe has only used glue, unstable and electric because of technique Fatigue vibrations during machine entrucking use, there are the risk that magnetic shoe falls off, it is whole that motor lead-out wire from motor is assembled to motor entrucking During a, it is existing that the risk for causing lead-out wire deformation damaged is squeezed by external force, and electric leakage or motor can be caused idle Hidden danger.And it is existing to have brush microelectromechanical structure complex, efficiency of assembling is reduced, stability when motor being caused to work It is poor so that rotating speed and torque when motor works cannot be satisfied the use demand of user.Therefore we make this improvement, It is proposed a kind of high stable permanent-magnet DC brush micro machine.

Utility model content

The purpose of this utility model is to provide a kind of high stable permanent-magnet DC brush micro machines, to solve above-mentioned background skill The problem of being proposed in art.

To achieve the above object, the utility model provides the following technical solutions：A kind of micro- electricity of high stable permanent-magnet DC brush Machine, including protecgulum, the protecgulum are fixed on casing one end, and the casing other end is connected with rear cover, embedding at the protecgulum port Equipped with positioning sleeve, the positioning sleeve is fixed with armature spindle one end, and the armature spindle other end is movably connected in bearing, the axis It holds and is arranged among rear cover, periphery is connected with rotor pressing ring among the armature spindle, is fixedly connected between the rotor pressing ring Rotor core, rotor windings are connected in the rotor core, and the casing internal is equipped with magnetic shoe corresponding with rotor core, institute It states magnetic shoe to be placed in limit card slot, offers motor lead-out wire through-hole on the outside of the casing, in the motor lead-out wire through-hole The heart is equipped with conducting wire geometrical clamp, and the casing internal is equipped with commutator, and the commutator side is connected with brush.

Preferably, it is connected through a screw thread between the protecgulum and rear cover and casing.

Preferably, the limit card slot is symmetrically arranged with four pairs along casing inner wall, and limit card slot is integrated into casing Type structure.

Preferably, it is evenly distributed with ventilation hole in the rotor pressing ring.

Preferably, it is fixed by screws between the conducting wire geometrical clamp and motor lead-out wire through-hole, and conducting wire is fixed Folder inner wall is fitted with rubber pad.

Compared with prior art, the utility model has the beneficial effects that：

1, the utility model is by the motor lead-out wire through-hole of setting, and motor wire is across motor lead-out wire through-hole and the external world It is connected, in through hole, conducting wire is fixed by conducting wire geometrical clamp, avoids conducting wire from being squeezed by external force or lead to drag and lead-out wire is caused to become Shape is damaged, even results in the disengaging with motor itself, improves the stability in use of motor.

2, the utility model has only used glue by the limit card slot of setting, the fixation of most DC motor stator magnetic shoe Water, because of fatigue vibrations during the unstable and motor entrucking use of technique, there are the risks that magnetic shoe falls off, by consolidating magnetic shoe It is scheduled on inside limit card slot, it is simple in structure, further increase the stability in use of motor.

3, the utility model sets positioning sleeve by the positioning sleeve and bearing of setting, protecgulum inner sleeve, and one end of armature spindle passes through Bearing installation is set in rear cover, and installation positioning is convenient, effectively increases efficiency of assembling, reduces abrasion journey when armature spindle rotation Degree, extends service life.

Description of the drawings

Fig. 1 is the utility model overall structure diagram；

Fig. 2 is the utility model magnetic shoe and casing connecting structure schematic diagram；

In figure：1- protecgulums；2- positioning sleeves；3- rotor pressing rings；4- rotor cores；5- conducting wire geometrical clamps；6- motor lead-out wires Through-hole；7- rear covers；8- commutators；9- bearings；10- armature spindles；11- casings；12- magnetic shoes；13- rotor windings；14- brushes；15- Limit card slot；16- ventilation holes.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

- 2 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of high stable permanent-magnet DC brush micro machine, Including protecgulum 1, the protecgulum 1 is fixed on 11 one end of casing, and 11 other end of the casing is connected with rear cover 7,1 port of the protecgulum Place is embedded with positioning sleeve 2, and the positioning sleeve 2 is fixed with 10 one end of armature spindle, and 10 other end of the armature spindle is movably connected in axis It holds in 9, the bearing 9 is arranged among rear cover 7, and 10 centre periphery of the armature spindle is connected with rotor pressing ring 3, the rotor pressure It is fixedly connected with rotor core 4 between circle 3, rotor windings 13 are connected in the rotor core 4, the casing 11 is internally provided with Magnetic shoe 12 corresponding with rotor core 4, the magnetic shoe 12 are placed in limit card slot 15, and 11 outside of the casing offers motor Line three-way hole 6 is drawn, 6 center of motor lead-out wire through-hole is equipped with conducting wire geometrical clamp 5, commutator is equipped with inside the casing 11 8,8 side of the commutator is connected with brush 14.

It is connected through a screw thread between protecgulum 1 and rear cover 7 and casing 11, dismounting is convenient；Limit card slot 15 is along casing 11 Wall is symmetrically arranged with four pairs, and limit card slot 15 is an integral molding structure with casing 11, facilitates the stability in use of magnetic shoe 12；Turn It is evenly distributed with ventilation hole 16 in sub- trim ring 3, is conducive to the ventilation and heat inside motor；Conducting wire geometrical clamp 5 and motor lead-out wire It is fixed by screws between through-hole 6, and 5 inner wall of conducting wire geometrical clamp is fitted with rubber pad, increases conducting wire geometrical clamp 5 and conducting wire The frictional resistance of contact, clamping fastener.

Operation principle：The utility model fixes magnetic shoe 12, most DC motor stator magnetic by the limit card slot 15 of setting Watts 12 fixation has only used glue, and because of fatigue vibrations during the unstable and motor entrucking use of technique, there are magnetic shoes 12 Magnetic shoe 12 is fixed on inside limit card slot 15 by the risk to fall off, simple in structure, improves the stability in use of motor, in protecgulum 1 It is arranged positioning sleeve 2, one end of armature spindle 10 is set to by the installation of bearing 9 in rear cover 7, and installation positioning is convenient, effectively increases dress With efficiency, reducing degree of wear when armature spindle 10 rotates, 10 side of armature spindle is equipped with brush 14, extends service life, Motor wire is connected across motor lead-out wire through-hole 6 with the external world, and in through hole, conducting wire is fixed by conducting wire geometrical clamp 5, is avoided Conducting wire, which is squeezed or led by external force to drag, causes lead-out wire deformation damaged, even results in the disengaging with motor itself, using effect is good.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims

1. a kind of high stable permanent-magnet DC brush micro machine, including protecgulum（1）, which is characterized in that the protecgulum（1）It is fixed on machine Shell（11）One end, the casing（11）The other end is connected with rear cover（7）, the protecgulum（1）Positioning sleeve is embedded at port（2）, The positioning sleeve（2）With armature spindle（10）One end is fixed, the armature spindle（10）The other end is movably connected in bearing（9）It is interior, institute State bearing（9）It is arranged in rear cover（7）Centre, the armature spindle（10）Intermediate periphery is connected with rotor pressing ring（3）, the rotor pressure Circle（3）Between be fixedly connected with rotor core（4）, the rotor core（4）Inside it is connected with rotor windings（13）, the casing （11）It is internally provided with and rotor core（4）Corresponding magnetic shoe（12）, the magnetic shoe（12）It is placed on limit card slot（15）It is interior, it is described Casing（11）Outside offers motor lead-out wire through-hole（6）, the motor lead-out wire through-hole（6）Center is equipped with conducting wire geometrical clamp （5）, the casing（11）Inside is equipped with commutator（8）, the commutator（8）Side is connected with brush（14）.

2. a kind of high stable permanent-magnet DC brush micro machine according to claim 1, it is characterised in that：The protecgulum（1） And rear cover（7）With casing（11）Between be connected through a screw thread.

3. a kind of high stable permanent-magnet DC brush micro machine according to claim 1, it is characterised in that：The limit card slot （15）Along casing（11）Inner wall is symmetrically arranged with four pairs, and limit card slot（15）With casing（11）It is an integral molding structure.

4. a kind of high stable permanent-magnet DC brush micro machine according to claim 1, it is characterised in that：The rotor pressing ring （3）In be evenly distributed with ventilation hole（16）.

5. a kind of high stable permanent-magnet DC brush micro machine according to claim 1, it is characterised in that：The conducting wire is fixed Folder（5）With motor lead-out wire through-hole（6）Between be fixed by screws, and conducting wire geometrical clamp（5）Inner wall is fitted with rubber pad.