CN209217923U

CN209217923U - A kind of linear viberation exciter

Info

Publication number: CN209217923U
Application number: CN201821966585.2U
Authority: CN
Inventors: 王海涛; 王海童
Original assignee: Gettop Acoustic Co Ltd
Current assignee: Gettop Acoustic Co Ltd
Priority date: 2018-11-27
Filing date: 2018-11-27
Publication date: 2019-08-06
Anticipated expiration: 2028-11-27

Abstract

The utility model relates to a kind of linear viberation exciters, shape is cuboid, including upper casing, lower casing, two long side walls and two short side walls, the inside of the linear viberation exciter is respectively equipped with first coil, tertiary coil, the second coil, the first magnet is equipped between second coil and tertiary coil, the second magnet is equipped between second coil and first coil, the utility model can make full use of the magnetic induction line that magnet steel distributes, it increases operation rate, driving force is improved, and then is enhanced product performance under the premise of not increasing product thickness.

Description

A kind of linear viberation exciter

Technical field

The utility model relates to a kind of linear viberation exciters, belong to vibration mechanics technical field.

Background technique

Currently, mobile phone, which shields, has become the bright spot that major cell phone manufacturer promotes product comprehensively, the driver on existing market is more Seismaesthesia for mobile phone is experienced, and driver substitutes the traditional receiver of mobile phone, is placed on mobile phone screen, by pushing screen vibration And realize screen sounding, therefore the product is directed not only to vibration mechanics field and also relates to field of acoustics.

Driver working principle: hot-wire coil is passed through by the magnetic induction line that permanent magnet exhales and generates Ampere force, ampere masterpiece With on hot-wire coil, since coil is fixed, magnet drives oscillator vibration under the action of reaction force.

In existing line driver structure, unicoil magnetic structure is generallyd use, this structure is to magnetic induction line utilization efficiency Lower, driving force is lower, and overall performance is limited；In addition, under the state of the art, in order to improve performance, increase can only be passed through Magnetic circuit volume is reached, but in this way, its height dimension is bigger than normal, installation occupies biggish interior of mobile phone space, is unable to satisfy client " ultrathin " requirement.

Summary of the invention

The technical problems to be solved in the utility model is against the above deficiency, to provide a kind of linear viberation exciter, can The magnetic induction line that magnet steel distributes is made full use of, is increased operation rate, improves driving force, and then mention under the premise of not increasing product thickness High product performance.

In order to solve the above technical problems, the technical solution adopted in the utility model is as follows: a kind of linear viberation exciter, Shape is cuboid, including upper casing, lower casing, two long side walls and two short side walls, the inside of the linear viberation exciter It is respectively equipped with first coil, tertiary coil, the second coil, the first magnet, the second line are equipped between the second coil and tertiary coil The second magnet is equipped between circle and first coil.

As a further improvement of the above technical scheme:

The first coil and tertiary coil are separately positioned on the inner wall of two long side walls, and the second coil is arranged linear The center of vibration exciter.

The center of the first coil and tertiary coil is equipped with the boss of strip.

The boss is arranged on the inner wall of long side wall.

First magnet is identical as the second magnet arrangement, magnetic opposite.

The first coil is identical with tertiary coil structure, length is identical.

The length of second coil is identical as first coil, the length of tertiary coil.

The upper casing is equipped with several long stripes through holes, is equipped with elastic slice in long stripes through hole.

One end of the elastic slice is connect with upper casing, and the other end of elastic slice stretches to inside linear viberation exciter.

Identical as the structure of the upper casing and central axes along linear viberation exciter of the lower casing are symmetrical arranged.

The utility model takes above technical scheme, has the advantage that

1. magnetic structure is three-winding parallel-connection structure, magnet " Z " is to magnetizing and magnetizing direction is placed in three-winding on the contrary Between, make the magnetic induction line at left and right sides of magnet that can also pass through coil, magnetic strength utilization rate is effectively improved, thus not increasing product height The electromagnetic driving force for increasing product under the premise of degree improves the seismaesthesia of product and the acoustical behavior of entirety；

2. elastic slice, upper casing, lower casing three in one and housing sidewall rush a boss, boss substitution iron core is placed on the inside of coil, Play the role of magnetic conduction, while improving magnetic strength line use ratio, reduce Material Cost, simplifies manufacturing process, effectively promote producing line efficiency.

3. three-winding realizes parallel connection by flexible circuit board cabling, and two lateral coils are placed in housing sidewall, effectively improve sharp Device inner space utilization rate is encouraged, under the premise of guaranteeing excellent acoustical behavior, product can be made to tend to " more thinning ".

The utility model is described in further detail with reference to the accompanying drawings and examples.

Detailed description of the invention

Attached drawing 1 is a kind of structural schematic diagram of linear viberation exciter in the utility model embodiment；

Attached drawing 2 be in attached drawing 1 A-A to cross-sectional view；

Attached drawing 3 is the structural schematic diagram of boss in the utility model embodiment.

In figure, 1- upper casing, 2- long side wall, 3- long stripes through hole, 4- elastic slice, 5- lower casing, the second coil of 6-, 7- First Line Circle, 8- tertiary coil, the first magnet of 9-, 10- boss, the second magnet of 11-, 12- short side wall.

Specific embodiment

Embodiment, as illustrated in the accompanying drawings from 1 to 3, a kind of linear viberation exciter, shape is cuboid, including upper casing 1, lower casing 5, two long side walls 2 and two short side walls 12, upper casing 1 are equipped with several long stripes through holes 3, are two in the present embodiment, strip Elastic slice 4 is equipped in shape through-hole 3, one end of elastic slice 4 is connect with upper casing 1, and the other end of elastic slice 4 stretches in linear viberation exciter Portion, identical as the structure of the upper casing 1 and central axes along linear viberation exciter of lower casing 5 are symmetrical arranged；

First coil 7 and tertiary coil 8, first coil 7 and tertiary coil 8 are respectively equipped on the inner wall of two long side walls 2 Structure is identical, length is identical, and the center of first coil 7 and tertiary coil 8 is equipped with the boss 10 of strip, and boss 10 is set It sets on the inner wall of long side wall 2, the center of linear viberation exciter is equipped with the second coil 6, the length of the second coil 6 and the One coil 7, the length of tertiary coil 8 are identical, are equipped with the first magnet 9 between the second coil 6 and tertiary coil 8, the second coil 6 with The second magnet 11 is equipped between first coil 7, the first magnet 9 is identical as 11 structure of the second magnet, magnetic opposite.

Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this Utility model, the citing of embodiment, wherein the part that do not address in detail is the common knowledge of those of ordinary skill in the art, For those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or Person's equivalent replacement of some of the technical features.Within the spirit and principle of the utility model, made any to repair Change, equivalent replacement, improvement etc., should be included within the scope of protection of this utility model.

Claims

1. a kind of linear viberation exciter, it is characterised in that: shape is cuboid, including upper casing (1), lower casing (5), two long Side wall (2) and two short side walls (12), the inside of the linear viberation exciter are respectively equipped with first coil (7), tertiary coil (8), the second coil (6) are equipped with the first magnet (9) between the second coil (6) and tertiary coil (8), the second coil (6) and first The second magnet (11) are equipped between coil (7).

2. a kind of linear viberation exciter as described in claim 1, it is characterised in that: the first coil (7) and third line Circle (8) is separately positioned on the inner wall of two long side walls (2), and the centre bit of linear viberation exciter is arranged in the second coil (6) It sets.

3. a kind of linear viberation exciter as claimed in claim 2, it is characterised in that: the first coil (7) and third line The center of circle (8) is equipped with the boss (10) of strip.

4. a kind of linear viberation exciter as claimed in claim 3, it is characterised in that: the boss (10) is arranged in long side wall (2) on inner wall.

5. a kind of linear viberation exciter as described in claim 1, it is characterised in that: first magnet (9) and the second magnetic Iron (11) structure is identical, magnetic opposite.

6. a kind of linear viberation exciter as described in claim 1, it is characterised in that: the first coil (7) and third line Circle (8) structure is identical, length is identical.

7. a kind of linear viberation exciter as described in claim 1, it is characterised in that: the length of second coil (6) with First coil (7), the length of tertiary coil (8) are identical.

8. a kind of linear viberation exciter as described in claim 1, it is characterised in that: the upper casing (1) is equipped with several length Strip through-hole (3), long stripes through hole (3) is interior to be equipped with elastic slice (4).

9. a kind of linear viberation exciter as claimed in claim 8, it is characterised in that: one end of the elastic slice (4) and upper casing (1) it connects, the other end of elastic slice (4) stretches to inside linear viberation exciter.

10. a kind of linear viberation exciter as described in claim 1, it is characterised in that: the lower casing (5) and upper casing (1) The identical and central axes along linear viberation exciter of structure are symmetrical arranged.