CN201315538Y

CN201315538Y - Minitype linear vibrator

Info

Publication number: CN201315538Y
Application number: CNU2008201246117U
Authority: CN
Inventors: 陆勤; 高宜杭
Original assignee: ZHEJIANG LUFA MICRO MOTOR CO Ltd
Current assignee: Zhejiang Lufa Micro Motor Co., Ltd.
Priority date: 2008-12-12
Filing date: 2008-12-12
Publication date: 2009-09-23
Anticipated expiration: 2018-12-12

Abstract

The utility model provides a minitype linear vibrator provided, which comprises a housing, in which a concave iron core, a coil, a vibrating body, two steel magnets and a leaf spring are assembled. The steel magnets are symmetrically fixed on the vibrating body, and face the concave iron core by the same pole; the vibrating body is fixed on the inner wall of the housing through the leaf spring; and leads are drawn out from both ends of the coil. The leaf spring comprises an n-shaped body and a pair of integrated connected sheets, wherein the body is welded with the vibrating body; and the pair of connected sheets is respectively welded with the inner walls of both sides of the housing. The minitype linear vibrator has the following advantages: the structure is simple; the weight is light; the fabrication cost is low; because the prior motor with the electric brush and the commutator is dispensed with, abrasion is greatly reduced, the service life is prolonged, meanwhile, no commutation spark is produced, and no electromagnetic interference is generated. Meanwhile, the controllability of the minitype linear vibrator is good, and when alternating current with different voltages and frequencies is applied on both ends of the coil, different forms of vibration can be obtained in order to meet the different requirements of different groups of people.

Description

The micro linear vibrator

Technical field

The utility model relates to vibrating device, particularly relates to a kind of micro linear vibrator.

Background technology

Usually need to use mini vibrator in mobile phone technique, it is as noiseless signal source element; Also have some other need use mini vibrator the field as game machine, electric massage utensil etc.Traditional noiseless signal source all is to adopt the micro-vibration motor usually.No matter the micro-vibration motor is columniform, still pancake, all is made up of motor and eccentrically mounted weight piece, by the rotation drive eccentrically mounted weight piece rotation of motor, thereby produces vibration.And these d.c. motors generally have bearing, brush and commutator, tungsten alloy eccentric wheel, and under the abominable operating state of uneven rotation at a high speed, it is had relatively high expectations to the material of bearing, brush and commutator with eccentric rotor.Even like this, the problem that has the motor maximum of brush and commutator is easy wearing and tearing, and the life-span is short, is easy to generate commutation spark simultaneously, and the electromagnetic interference phenomenon is arranged.

The utility model content

The purpose of this utility model is exactly in order to overcome the defective of prior art, and a kind of simple in structure, in light weight, low cost of manufacture, long service life are provided, and the micro linear vibrator of non-commutation spark and electromagnetic interference.

For achieving the above object, the micro linear vibrator that the utility model provides, comprise shell, it is unshakable in one's determination and be sleeved in the heart coil of described channel, vibrating body, 2 magnet steel and reed that spill is housed in the described shell, described magnet steel is fixed on the described vibrating body symmetrically, and with identical polarity towards described spill iron core, described vibrating body is fixed on by described reed on the inwall of described shell, draw with lead at described coil two ends.

The utility model micro linear vibrator, wherein said spill iron core is formed by the butt joint unshakable in one's determination of 2 sections " L " shapes.

The utility model micro linear vibrator, wherein said reed comprises the brace that the body of " Π " shape and a pair of lower end and described body fuse, described body and described vibrating body weld together, and the inwall of the upside of described brace and described shell both sides welds together respectively.

The utility model micro linear vibrator, wherein said vibrating body is provided with groove, and described magnet steel adopts glue to be fixed in the described groove.

This practical micro linear vibrator has the following advantages and effect:

One. owing to cancelled the motor that has brush and commutator in the prior art, significantly reduce wearing and tearing, prolonged the life-span, do not produced spark simultaneously, do not had electromagnetic interference to produce.

Two. because the micro linear vibrator mainly is made up of the vibrating body and the reed of coil, iron core, band magnet steel, it is simple in structure, and is in light weight, has also reduced manufacturing cost.

Three. controllability is good, when the coil two ends apply the alternating current of different voltages and frequency, can obtain the multi-form sense of shaking, to satisfy all kinds of crowds' different needs.

The utility model is elaborated with reference to accompanying drawing below in conjunction with embodiment.

Description of drawings

Fig. 1 is the cutaway view of the utility model micro linear vibrator;

Fig. 2 is the structure chart of reed.

Embodiment

In the accompanying drawing of the utility model micro linear vibrator:

1. coil 2. spills 3. magnet steel, 4. shells unshakable in one's determination 5. reeds 6. vibrating bodies

With reference to Fig. 1, spill unshakable in one's

determination

2 and 6,2 magnet steel 3 of coil 1, vibrating body and the reed 5 that are sleeved on the spill iron core 2 are housed in the shell 4 of the utility model micro linear vibrator.

Wherein, spill unshakable in one's determination 2 adopts glue and shell 4 to bond together.Magnet steel 3 is fixed on the vibrating body 6 symmetrically, and with identical polarity, the N utmost point for example, and towards spill iron core 2, vibrating body 6 is fixed on by reed 5 on the inwall of shell 4, and draw with lead at coil 1 two ends.

In preferred enforcement of the present utility model, spill iron core 2 is formed by 2 sections " L " shapes of placing with central shaft symmetry butt joint unshakable in one's determination.Vibrating body 6 is provided with groove, and the one side of magnet steel 3 adopts glue to be fixed in the groove.

With reference to Fig. 2, reed 5 comprises the brace 52 that the body 51 of " Π " shape and a pair of lower end and body 51 fuse, and body 51 welds together with vibrating body 6, and the inwall of the upside of brace 52 and shell 4 both sides welds together respectively.

In other embodiment of the utility model micro linear vibrator, the reed 5 that connects vibrating body 6 and shell 4 also can adopt other various forms, can support with rhombus, curved body 51.Reed 5 also can adopt silicon rubber to pour into to substitute.Reed 5 of the present utility model only is a kind of mode, as long as can connect vibrating body 6 and shell 4 and produce the jockey of linear oscillator, all belongs to version of the present utility model.

In the embodiment of the utility model micro linear vibrator, coil 1 two ends link to each other with ac control power supply, and the frequency of ac control power supply is to make vibrating body 6 and magnet steel 3 produce the frequency of resonance.

Below the course of work of the utility model micro linear vibrator is explained.

When this practical micro linear vibrator applies the alternating current of certain voltage and frequency (can make vibrating body and magnet steel produce the frequency of resonance or approaching resonance) when the two ends at coil 1, magnet steel 3 and vibrating body 6 can move by left and right sides commute above spill iron core 2, produce vibration force, and vibration force is passed by reed 5 and shell 4.It is simple in structure, and is in light weight, long service life, and low cost of manufacture owing to cancelled the motor that has brush and commutator in the prior art, has significantly reduced wearing and tearing, has prolonged the life-span, does not produce commutation spark simultaneously, does not have electromagnetic interference to produce.

In addition, the controllability of this practical micro linear vibrator is good, when the coil two ends apply the alternating current of different voltages and frequency, can obtain the multi-form sense of shaking, and to satisfy all kinds of crowds' different needs, has shown good performance.

Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; relate under the prerequisite of spirit not breaking away from the utility model; various distortion and improvement that the common engineers and technicians in this area make the technical solution of the utility model all should fall in the definite protection range of claims of the present utility model.

Claims

1, a kind of micro linear vibrator, comprise shell (4), it is characterized in that: spill iron core (2) is housed in the described shell (4) and is sleeved on coil (1), vibrating body (6), 2 magnet steel (3) and reed (5) on the described spill iron core (2), described magnet steel (3) is fixed on the described vibrating body (6) symmetrically, and with identical polarity towards described spill iron core (2), described vibrating body (6) is fixed on the inwall of described shell (4) by described reed (5), and draw with lead at described coil (1) two ends.

2. micro linear vibrator according to claim 1 is characterized in that: wherein said spill iron core (2) is formed by the butt joint unshakable in one's determination of 2 sections " L " shapes.

3. micro linear vibrator according to claim 1 and 2, it is characterized in that: wherein said reed (5) comprises the brace (52) that the body (51) of " ∏ " shape and a pair of lower end and described body (51) fuse, described body (51) welds together with described vibrating body (6), and the inwall of the upside of described brace (52) and described shell (4) both sides welds together respectively.

4. micro linear vibrator according to claim 3 is characterized in that: wherein said vibrating body (6) is provided with groove, and described magnet steel (3) adopts glue to be fixed in the described groove.