CN201608617U

CN201608617U - Transverse vibration motor

Info

Publication number: CN201608617U
Application number: CN2009202613122U
Authority: CN
Inventors: 令狐荣林
Original assignee: Ruisheng Acoustic Technology Changzhou Co ltd; AAC Acoustic Technologies Shenzhen Co Ltd
Current assignee: Ruisheng Acoustic Technology Changzhou Co ltd; AAC Technologies Holdings Shenzhen Co Ltd
Priority date: 2009-12-07
Filing date: 2009-12-07
Publication date: 2010-10-13
Anticipated expiration: 2019-12-07

Abstract

The utility model provides a transverse vibration motor, which comprises a first magnetic body, a second magnetic body, a first coil, and a housing, wherein the first magnetic body and the second magnetic body are arranged in the housing, and the first coil is plated on the inner surface of the housing. The transverse vibration motor provided by the utility model has the advantages of large driving force and effective utilization of design space.

Description

The transverse vibration motor

Technical field

The utility model relates to a kind of transverse vibration motor, relates in particular to a kind of transverse vibration motor that is used for the electronic sound device.

Background technology

In the process of portable communication device fast developments such as mobile phone, more and more higher to the requirement that is installed in electro-acoustic element wherein.

The purpose that save the space in order to reach, promotes quality, electro-acoustic element progressively develops to extra small ultra-thin direction, thus, the also corresponding quickening of development of the transverse vibration motor of electro-acoustic element part.Under extra small ultra-thin direction development trend, also more and more higher to the requirement of transverse vibration motor vibrations amount at the transverse vibration motor, this has proposed stern challenge to existing vibratory output Design Mode.

Usually the enhancing of unicoil vibratory output all is to adopt increase coil thickness and increasing magnet grade to realize, but this mode can reduce the duty ratio of coil, simultaneously also extra small ultra-thin unfavorable to the transverse vibration motor, so under the situation that vibratory output is had relatively high expectations, this mode can not satisfy the requirement that improves day by day.

Seeing also Fig. 1, is a kind of generalized section of transverse vibration motor 1, and described transverse vibration motor 1 comprises a pair of magnets 10 and a coil 12.Please consulting Fig. 2 again, is the schematic cross-section of coil 12 shown in Figure 1, and described coil 12 is the single coiled wire-wound coils that form with circular enamelled wire coiling.

Mainly there is following problem in described transverse vibration motor 1: at first, because described coil 12 is single coiled wire-wound coil, cause the magnetic field of the magnet 10 that cooperates with described coil 12 only to have half to be utilized, and also have half to slattern, determined that the actuating force of described transverse vibration motor 1 is less; Secondly, because described coil 12 forms for circular enamelled wire coiling,, wasted the design space so the duty ratio of its coiling is less relatively.

The utility model content

Problems such as the actuating force at the existence of prior art transverse vibration motor is less, waste design space, the utility model provides a kind of actuating force more greatly, effectively to utilize the transverse vibration motor of design space.

A kind of transverse vibration motor comprises first magnet, second magnet, first coil and shell.Described first magnet and described second magnet are arranged in the described shell.Described first coil is coated on the inner surface of described shell.

As the further improvement of above-mentioned transverse vibration motor, described shell comprises upper casing and lower casing, and described upper casing and described lower casing cooperate the described shell of formation.

As the further improvement of above-mentioned transverse vibration motor, described first coil is coated on the inner surface of described upper casing.

Further improvement as above-mentioned transverse vibration motor further comprises second coil, and described second coil is coated on the inner surface of described lower casing.

As the further improvement of above-mentioned transverse vibration motor, be arranged in the described shell about described first magnet and described second magnet.

As the further improvement of above-mentioned transverse vibration motor, described first coil and described second coil are individual layer coating loop construction.

As the further improvement of above-mentioned transverse vibration motor, described first coil and described second coil are at least three layers of coating loop construction, and are provided with the insulating barrier that usefulness is isolated in insulation between the adjacent coating.

As the further improvement of above-mentioned transverse vibration motor, the electrical current direction of described first coil and described second coil is identical, and the magnetizing direction of described first magnet and described second magnet is opposite.

Compared to prior art, transverse vibration motor of the present utility model is by being coated on described coil the inner surface of described transverse vibration motor, the duty ratio of described coil-winding can be effectively improved, thereby, the design space can be saved effectively driving under the identical situation of described coil resistance.Secondly, transverse vibration motor of the present utility model has adopted two coil configuration, and the electrical current direction of described two coil is identical, can make full use of the double-edged magnetic field of described two magnets, under the situation that does not increase the oscillating component quality, improved the vibratory output of described transverse vibration motor.

Description of drawings

Fig. 1 is a kind of generalized section of the transverse vibration motor relevant with the utility model.

Fig. 2 is the loop construction schematic cross-section of transverse vibration motor shown in Figure 1.

Fig. 3 is the generalized section of the utility model transverse vibration motor one better embodiment.

Fig. 4 is the structures of copper lines floor map of the coil of transverse vibration motor shown in Figure 3.

Embodiment

Below in conjunction with accompanying drawing transverse vibration motor of the present utility model is described.

See also Fig. 3, it is the generalized section of the utility model transverse vibration motor one better embodiment, described transverse vibration motor 2 comprises two magnets 20, two coil 22, lower casing 24 and upper casing 25, and described lower casing 24 and described upper casing 25 cooperate the shell (not shown) that forms described transverse vibration motor 2.Described two magnets 20 and described two coil 22 all are arranged in the described shell 24, and described two magnets 20 are permanent magnet, and it is got by the higher metallic of multiple hardness usually, as iron, aluminium, nickel and cobalt etc., perhaps copper, niobium and tantalum etc., according to the difference of composition, its magnetic property is also to should be differentiated.Described two magnets 20 are provided with about being, and its magnetizing direction is opposite, that is, wherein a magnet 20 upwards magnetizes, and another magnet 20 magnetizes downwards.

Described two coil 22 lays respectively at two interior surface opposing of described transverse vibration motor 2, concretely, wherein a coil 22 is positioned at the inner surface 242 of described lower casing 24, another coil 22 is positioned at the inner surface 252 of described upper casing 25, and promptly described two coil 22 lays respectively at the both sides up and down at described two magnets 20.Described coil 22 is lattice coils, is generally three to four layers, as required, also can correspondingly reduce or the increase number of plies, even be single layer structure, and have insulating barrier to isolate between the adjacent lines ring layer of described coil 22, prevents short circuit.Described two coil 22 can be coated on the described inner surface 242 of described lower casing 24 and the described inner surface 252 of described upper casing 25 respectively by electroplating technology.Seeing also Fig. 4, is the wherein schematic diagram of an individual layer coating coil of described coil 22.Because described coil 22 is to be coated on the described inner surface 242 of described lower casing 24 and the described inner surface 252 of described upper casing 25, so coil that forms compared to the circular enamelled wire coiling of prior art, the duty ratio of described coil 22 coilings of present embodiment is much smaller, so can comparatively significantly reduce the volume of described coil 22, the corresponding actuating force that effectively improves.

Further, the electrical current direction of described two coil 22 is identical, can make full use of described two magnets 20 double-edged magnetic fields like this, further improves actuating force.

Compared to prior art, transverse vibration motor 2 of the present utility model is by being coated on described coil 22 the described inner surface 242 of described lower casing 24 and the described inner surface 252 of described upper casing 25, can effectively improve the duty ratio of described coil 22 coilings, thereby, can save the design space effectively driving under the identical situation of described coil 22 resistance.Secondly, transverse vibration motor 2 of the present utility model has adopted twin coil 22 structures, and the electrical current direction of described two coil 22 is identical, can make full use of described two magnets 20 double-edged magnetic fields, under the situation that does not increase the oscillating component quality, improved the vibratory output of described transverse vibration motor 2.

Only be preferred case study on implementation of the present utility model below, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.

Claims

1. a transverse vibration motor comprises first magnet, second magnet, first coil and shell, and described first magnet and described second magnet are arranged in the described shell, and it is characterized in that: described first coil is coated on the inner surface of described shell.

2. transverse vibration motor according to claim 1 is characterized in that: described shell comprises upper casing and lower casing, and described upper casing and described lower casing cooperate the described shell of formation.

3. transverse vibration motor according to claim 2 is characterized in that: described first coil is coated on the inner surface of described upper casing.

4. transverse vibration motor according to claim 2 is characterized in that: further comprise second coil, described second coil is coated on the inner surface of described lower casing.

5. transverse vibration motor according to claim 4 is characterized in that: be arranged in the described shell about described first magnet and described second magnet.

6. transverse vibration motor according to claim 4 is characterized in that: described first coil and described second coil are individual layer coating loop construction.

7. transverse vibration motor according to claim 1 is characterized in that: described first coil and described second coil are at least three layers of coating loop construction.

8. transverse vibration motor according to claim 7 is characterized in that: be provided with the insulating barrier that usefulness is isolated in insulation between the adjacent coating of described first coil and described second coil.

9. transverse vibration motor according to claim 4 is characterized in that: the electrical current direction of described first coil and described second coil is identical.

10. transverse vibration motor according to claim 9 is characterized in that: the magnetizing direction of described first magnet and described second magnet is opposite.