CN2496181Y

CN2496181Y - Mini-motor structure

Info

Publication number: CN2496181Y
Application number: CN 01259565
Authority: CN
Inventors: 周万顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-27
Filing date: 2001-08-27
Publication date: 2002-06-19
Anticipated expiration: 2011-08-27

Abstract

The utility model provides a micro-miniature motor structure, which comprises a casing body, a rotor, a magnet, a rectification terminal and an electric brush fixing seat, wherein a bearing seat is arranged at the front end of the casing body, the rotor is arranged in the casing body, the rotor is connected with the bearing seat through an axle center, the magnet is arranged on the inner wall of the casing body, the magnet and the rotor assume the relative position with a gap, the rectification terminal is arranged at one end of the inner axle center of the casing body, the electric brush fixing seat is arranged at the other end of the inner axle center of the casing body, an electric brush is provided, and the electric brush is glidingly connected with the rectification terminal. The utility model has the advantages that the outputting twisting force is strong, the current consuming is small, and the service life is long.

Description

The microminiature motor configuration

Technical field

The utility model is a kind of microminiature motor configuration, particularly about a kind of a kind of microminiature motor that is used for Communication Equipment or portable type electronic product.

Background technology

Motor is of a great variety, can be DC motor and AC motor according to its supply power mode, and the volume difference in size is also very big, and the vibrations of mobile phone source mainly is by means of the microminiature motor at present, and its consumed power is about below the 3w, and external diameter is almost also all accomplished below the 10mm.The microminiature motor has the low characteristic of compact power consumption, also extensively applies to various portable type electronic products except being used in mobile phone, and the microminiature motor brings more convenience for our life.

As shown in Figure 1, it is a regular micro motor, comprise a housing 1a, one axle center 2a, one sleeve 3a, one magnet 4a, one cylinder type rotor 5a, an one commutator 6a and a brush 7a form, wherein this housing 1a front end is provided with a bearing pedestal 11a, and in bearing pedestal 11a, be arranged with lining 12a, this axle center 2a is coupling in this lining 12a, partly be arranged with a sleeve 3a in the middle of the 2a of axle center, this sleeve 3a outside is provided with a magnet 4a, the magnet 4a outside is provided with a cylinder type rotor 5a, and be formed with a gap with housing 1a inwall, this commutator 6a is coupling between cylinder type rotor 5a and axle center 2a, the end of axle center 2a is provided with a brush 7a, and this brush 7a is slidably connected to commutator 6a.

By above-mentioned member, twine with coil at cylinder type rotor 5a external diameter, and by brush 7a through commutator 6a input current to coil, make magnetic field induction to produce the magnetic flux phenomenon with magnet 4a, drive the rotation of cylinder type rotor 5a, at an end sheathed one eccentric yaw 8a of axle center 2a,, and can originate in addition as the vibrations of mobile phone in order to the generation vibrating effect.

Above-mentioned regular micro motor, though can produce a vibrating effect, but it is in the process of vibrations, cylinder type rotor 5a rotates and to cause that easily coil or magnet 4a pitch etc. and influence the problem of motor life, if attach to sleeve 3a cylinder type rotor 5a rotation because this magnet 4a goes up by the agent of ining succession, and coil stationary is in cylinder type rotor 5a external diameter, the said fixing effect is all bad, for a long time promptly can produce the phenomenon that part comes off service time one, bear too much weight when this axle center 2a rotates in addition, to such an extent as to outputting torsion is big inadequately and institute's consumed current is also too high during revolution.

Therefore as from the foregoing, above-mentioned common microminiature motor obviously has inconvenience and remains to be improved with shortcoming on reality is used.

Summary of the invention

In order to improve above-mentioned every shortcoming of regular micro motor configuration, main purpose of the present utility model is to provide a kind of microminiature motor configuration, and its consumed current is less, and it is big that motor rotary speed reaches outputting torsion soon, and uses the longevity long.

In order to achieve the above object, the utility model mainly provides a kind of microminiature motor configuration, comprise a housing, one rotor, one magnet, an one rectification terminal and a brush carrier block, wherein this housing front end is provided with bearing pedestal, this rotor is located at enclosure interior, and be coupling in bearing pedestal with an axle center, this magnet is fixedly arranged on inner walls, and be the relative position in a gap with rotor, this rectification terminal is located at housing inner axes one end, and this brush carrier block is located at the other end of housing inner axes, and is provided with a brush, this brush is slidably connected to the rectification terminal, be located at rotor exterior by magnet, alleviate the burden of rotor rotation, in order to output and the consumption less current that improves motor torsion, and reduce the motor failure rate, improve useful life.

After adopting microminiature motor configuration of the present utility model, have that the motor outputting torsion is big, the motor current sinking is little, motor life is long and be difficult for beneficial effect such as fault.

Description of drawings

Fig. 1 is the generalized section that the regular micro motor combines with eccentric yaw.

Fig. 2 is the utility model generalized section.

Fig. 3 is the floor map of the utility model rotor.

Fig. 4 is another embodiment schematic diagram of the utility model.

1a: housing

11a: bearing pedestal 12a: lining

2a: axle center 3a: sleeve

4a: magnet 5a: cylinder type rotor

6a: commutator 7a: brush

8a: eccentric yaw

1: housing

11: urceolus 12: bonnet

13: bearing pedestal 14: lining

15: recess 16: pad

17: lead

2: rotor

21: axle center 22: sleeve

23: coiling arm 24: coil

3: magnet 4: the rectification terminal

5: brush carrier block

51: brush

6: eccentric yaw

Embodiment

See also Fig. 2 and Fig. 3, be the utility model generalized section and the utility model rotor plane schematic diagram, comprise a housing 1, a rotor 2, a magnet 3, a rectification terminal 4 and a brush carrier block 5, wherein:

The cylindric ducted body of this housing 1 for combining by urceolus 11 and bonnet 12, its external diameter is less than 10mm, and housing 1 front end is provided with a bearing pedestal 13, is arranged with lining 14 in this bearing pedestal 13; This rotor 2 is located at housing 1 inside, be coupling in the lining 14 of bearing pedestal 13 inside with an axle center 21, in order to fix this axle center 21, axle center 21 is provided with a sleeve 22 adjacent to rotor 2 one sides, this rotor 2 is combined by a plurality of silicon steel sheets, rotor 2 itself has at least three and is the coiling arm 23 that equal portions distribute, coil 24 twines on it and can obtain preferable fixed effect, and produce the magnetic field intensity of the last one with magnet 3, this magnet 3 is fixedly arranged on housing 1 inwall, and is the relative position in a gap with rotor 2, and this rectification terminal 4 is located at an end of housing 1 inner axes 21, this brush carrier block 5 is located at the end in addition of housing 1 inner axes 21, and be provided with a brush 51, and this brush 51 is slidably connected to rectification terminal 4, and this bonnet 12 is provided with a recess 15, in order to the fixing rear end in axle center 21, be provided with a pad 16 in the recess 15, it is constituted by a rub resistance material, in order to alleviate the frictional resistance that is caused when rotate in axle center 21, and being provided with one group of lead 17 in bonnet 12 1 sides, it is electrically connected with brush 51.

Form by above-mentioned member, on the coiling usefulness arm 23 of rotor 2, twine with suitable number of turn coil 24, and pass to electric current by lead 17, through rectification terminal 4 electric current is introduced into coil 24 by brush 51, to form a magnetic field, and with the magnet 3 excitatory formation magnetic fluxs in rotor 2 outsides, to drive the rotation of whole rotor 2, so, rotor 2 has not only lacked the burden of magnet 3 when rotating, the torsion of motor output can greatly improve, and institute's current sinking is extremely low, what is more, magnet 3 must not follow rotor 2 to rotate again, and it is of a specified duration service time one also to have solved common rotation, the shortcoming that magnet 3 promptly might pitch, magnet 3 then can continue to be fixed in housing 1 inwall always and can not come off in the utility model, and coil 24 also is like this.

See also Fig. 4, be another embodiment schematic diagram of the utility model, this axle center 21 is at front end sheathed one eccentric yaw 6, when rotor 2 rotates, drives axle center 21 runnings, take advantage of a situation and also drive eccentric 6 rotations, by the imbalance design of eccentric yaw 6 centers of gravity, poor in order to produce certain centrifugal force, further produce the effect of vibrations, and pass through the external diameter of motor own less than 10mm, be applied to Communication Equipment or portable type electronic product and can integrate.

Claims

1, a kind of microminiature motor configuration comprises:

One housing, front end are provided with a bearing pedestal; One rotor, a magnet is characterized in that:

Described rotor is located at enclosure interior, is coupling in bearing pedestal with an axle center;

Described magnet is fixedly arranged on inner walls, and and rotor between be the relative position in a gap; This structure also comprises:

One rectification terminal, it is located at axle center one end; And

One brush carrier block, it is located at the axle center other end, and is provided with a brush, and this brush is slidably connected to the rectification terminal.

2, microminiature motor configuration as claimed in claim 1 is characterized in that, this housing external diameter is less than 10mm.

3, microminiature motor configuration as claimed in claim 1 is characterized in that, this housing is combined by urceolus and bonnet.

4, microminiature motor configuration as claimed in claim 3 is characterized in that, is covered with a recess after this, in order to the fixing rear end in axle center.

5, microminiature motor configuration as claimed in claim 3 is characterized in that, this bonnet one side is provided with one group of lead, and is electrically connected with brush.

6, microminiature motor configuration as claimed in claim 4 is characterized in that, is provided with a pad in this recess.

7, microminiature motor configuration as claimed in claim 1 is characterized in that, is arranged with lining in this bearing pedestal.

8, microminiature motor configuration as claimed in claim 1 is characterized in that, this rotor is to be combined by a plurality of silicon steel sheets.

9, microminiature motor configuration as claimed in claim 1 is characterized in that, this rotor itself has at least three and is the coiling arm that equal portions distribute.

10, microminiature motor configuration as claimed in claim 1 is characterized in that, the axle center is provided with a sleeve adjacent to rotor one side.