KR200403543Y1 - A vibrator - Google Patents

Abstract

The present invention relates to a vibration generating device, the aim of which is to minimize the components of the vibration generating device, while simplifying the coupling structure, while increasing the vibration, reducing noise, as well as the area including the volume To provide a vibration generating device with a minimum.

The present invention for achieving this purpose and the case for hermetically receiving the component; A driving body fixed to one side of the case and generating a magnetic field by an AC signal applied from the outside; A vibrating body pendulum-moved by the electromagnetic field generated by the above-mentioned driving body; In the vibration generating apparatus including a support for supporting the above-mentioned case so that the above-mentioned vibrating body pendulum moves within the region of the electromagnetic field generated by the above-mentioned driving body, the cover for opening and closing the above-mentioned case and the case opening is circular, respectively. Forming a fitting hole into which the above-mentioned driving body is fitted and fixed at a position biased toward one side of the facing surface, and the above-described support body is a ring-shaped leaf spring, and one end of the outer peripheral surface is fixed to the inner peripheral surface of the case described above, and the above-mentioned driving body And a fitting protrusion fitted to correspond to the above-described fitting holes of the case and the cover, and partially coupled to the inner circumferential surface of the support body so as to be positioned at a predetermined distance on one side of the driving body. do.

The present invention configured as described above minimizes the components of the vibration generating device and at the same time, simplifies the coupling structure to facilitate the manufacturing process, while improving manufacturability and using the "e" type core to improve magnetic field utilization. At the same time, the vibration force is obtained from the pendulum movement to increase vibration and reduce noise, thereby improving vibration force and vividness of the vibration, and by forming a circular shape in the form of use of an electroacoustic device. The effect of minimizing area and volume is obtained.

Description

Vibration Generator {A vibrator}

The present invention relates to a vibration generating device, and more particularly to a small vibration generating device embedded in an electronic device that requires the generation of vibration sound, such as a mobile phone.

In general, portable communication terminals such as mobile phones (cellular phones and PCS phones), PDAs, and notebook computers are equipped with an electronic acoustic transducer to enable sound output.

The electro-acoustic transducer includes a speaker receiver buzzer capable of outputting voice and sound, and is largely classified into a vibration generator that generates vibration force and outputs vibration sound.

The vibration generating device is a motor driving method for generating vibration by the centrifugal force of the rotary pin eccentrically fixed to the rotation axis of the motor, and a rotational or linear reciprocating motion in response to the coil generating the electromagnetic force by the applied electric signal (power) A magnetic circuit driving method in which a vibrator generates vibration may be representative. Examples of the magnetic circuit driving method described above include a coin type and a cylinder type.

Looking at the characteristic part of the conventional configuration of the coin-type vibration generating apparatus described above, first, the vibrator is configured to be eccentrically rotated about an axis.

This is because the vibration force proceeds from side to side, there is a problem that the vibration force is low.

In addition, since the vibrator is configured to rotate, a brush or other connecting means is provided in the case so as to apply current to the coil provided in the vibrator, so that the connection with the terminal provided in the vibrator is made.

However, in such a structure, the brush or the connecting means is worn while rubbing against the terminal of the vibrator, and there is a problem in operation, such as not performing an accurate operation when used for a long time.

On the other hand, in the case of the cylindrical type of the magnetic circuit driving system, the vibrator has a structure that collides with the case while linearly reciprocating, which is closer to the impact sound than the vibration sound, and may be damaged by direct collision with the case. There were many problems.

In order to improve the problems of the conventional vibration generating device, the present applicant has filed an application for a vibration generating device (Korean Patent Application No. 2005-0083546 (September 8, 2005 filed)).

However, the vibration generating device, which the applicant has previously applied for, has a large occupied area (for the part to be installed), and is large in volume, contrary to the trend of the parts industry that is aimed at light and small size, Contrary to the commercially available prototype, there was a problem of poor compatibility.

The present invention for solving such problems minimizes the components of the vibration generating device and at the same time simplifies the coupling structure, increases the vibration, reduces the noise, as well as minimizes the area including the volume of vibration The purpose is to provide a generator.

The present invention for achieving this object, and a case for hermetically receiving the component; A driving body fixed to one side of the case and generating a magnetic field by an AC signal applied from the outside; A vibrating body pendulum-moved by the electromagnetic field generated by the above-mentioned driving body; In the vibration generating apparatus including a support for supporting the above-mentioned case so that the above-mentioned vibrating body pendulum moves within the region of the electromagnetic field generated by the above-mentioned driving body, the cover for opening and closing the above-mentioned case and the case opening is circular, respectively. Forming a fitting hole into which the above-mentioned driving body is fitted and fixed at a position biased toward one side of the facing surface, and the above-described support body is a ring-shaped leaf spring, and one end of the outer peripheral surface is fixed to the inner peripheral surface of the case described above, and the above-mentioned driving body And a fitting protrusion fitted to correspond to the above-described fitting holes of the case and the cover, and partially coupled to the inner circumferential surface of the support body so as to be positioned at a predetermined distance on one side of the driving body. do.

When the electromagnetic field is formed in the driving body by an AC signal applied from the outside, the present invention is supported by the support fixed to the case, and the pendulum moves according to the alternating electromagnetic field located in the space. The vibration is transmitted to the case through the support.

The case described above of the present invention, for example, is an enclosure that is opened by a cover, for example.

Here, for example, the cover may be provided with a heat sink for dissipating heat generated by the aforementioned drive body.

In this case, the above-described heat sink may be, for example, a through hole or may be a heat sink.

On the other hand, the above-described driving body of the present invention may be a magnetic circuit, for example.

Here, the above-described magnetic circuit includes, for example, a coil for generating an electromagnetic force in accordance with an applied AC signal; It may comprise a core in which the coil is wound.

In this case, the core described above may be, for example, an "E" type core, a "I" type core, or a core in which an "E" type and an "I" type are combined, or may be in the form of a yoke, It satisfies any size, length, or shape that can act the maximum on the vibrating body.

In addition, the above-described vibrating body of the present invention may be, for example, a metal block responding to a magnetic field, or may be a magnet.

On the other hand, the above-described support in the present invention, for example, as a ring-shaped leaf spring, may be a closed curve, the closed curve may be cut may be formed on both sides of the cutting end.

In this case, the support may be, for example, swivel welded to the case or adhesively fixed to the case, to form a bend extension formed by bending the cutting end of the support to the outside to impregnate the case integrally to the case during injection. Can also be.

Here, the above-described support and the vibrating body may be attached and fixed by an adhesive, may be screwed, or may be coupled by welding.

If described with reference to the accompanying drawings an embodiment of the present invention may be configured as follows.

First, the present invention, as shown in the accompanying drawings, Figures 1 to 3, and a case 11 for hermetically receiving a component; A driver 12 fixed to one side of the case 11 and generating a magnetic field by an AC signal applied from the outside; A vibrating body 13 pendulum-moving by the electromagnetic field generated in the above-described driving body 12; In the vibration generating apparatus including the support body 14 which supports the case 11 mentioned above so that the above-mentioned vibrating body 13 may pendulum-move within the area | region of the electromagnetic field which generate | occur | produces in the said drive body 12 mentioned above, The cover 11a for opening and closing the case 11 and the case opening part is formed in a circular shape, and the fitting body 11c in which the above-described driving body 12 is fitted is fixed at a position biased to one side of the facing surface, respectively, The support 14 described above is a ring-shaped leaf spring, and one end of the outer circumferential surface is fixed to the inner circumferential surface of the case 11, and the case 11 and the cover 11a are fitted to the aforementioned drive body 12. On the inner circumferential surface of the support body 14 described above, a fitting protrusion 12c is formed to correspond to the hole 11c, and the vibrating body 13 is positioned at one side of the driving body 12 at a predetermined interval. Partially combined.

As described above, the case 11 of the present invention is a housing that is opened by the cover 11a.

Here, the cover 11a is provided with a through hole 11b as a heat sink for dissipating heat generated by the above-described driving body 12.

On the other hand, the above-described drive body 12 is a magnetic circuit, the coil 12a for generating an electromagnetic force in accordance with the applied AC signal; The coil 12a mentioned above is comprised including the core 12b by which it is wound.

At this time, the above-mentioned core 12b is an "E" type core.

On the other hand, the above-described vibrating body 13 of the present invention is a metal block in response to the magnetic field.

In addition, the support body 14 mentioned above in this invention is a ring-shaped leaf spring, and the ring is cut | disconnected so that welding may be carried out to the inner peripheral surface of the case 11, and the cutting end part 14a is formed in both sides.

At this time, the support body 14 is welded to the case 11 described above.

According to the present invention, when the AC signal is not applied to the coil 12a, the magnetic field is not formed in the driving body 12 as shown in FIG.

However, when the AC signal is applied to the coil 12a, as shown in FIG. 3B, an electromagnetic field is formed in the coil 12a and the core 12b, which are the driving bodies 12, wherein the electromagnetic field is an AC signal. As the direction of the magnetic force is changed according to the alternation of the driving force, that is, the driving body 12 and the vibrating body 13 are mutually attracting force and repulsive force alternately acting, pushing or pulling the vibrating body 13, vibrating body 13 The support body 14 having an elastic force to support) also vibrates from side to side along the vibrating body 13.

At this time, the heat generated from the drive body 12 is discharged to the outside through the through-hole that is the heat sink (11b) formed in the cover (11a), to prevent the deterioration of electrical characteristics, and to extend the life.

In addition, as another embodiment of the present invention, as shown in the accompanying drawings, the bent extension portion 14b is formed by bending the cut end portion 14a of the support body 14 to form the case 11 during injection. It is also preferable to impregnate and fix the case 11 integrally.

Thus, the fixing for fixing the support body 14 to the case 11 is omitted, thereby improving productivity.

As another embodiment of the present invention, as shown in FIG. 6, the bending extension part 14b is further extended, and the case 11 has a side through-hole 11d through which the bending extension part 14b can pass. It can be configured to be bent and fixed to the end of the bending extension portion 14b penetrating through the through hole (11d), as shown in the accompanying drawings, Figure 7, the fixed body at the end of the bending extension portion 14b It is also possible to fix it by fixing 14c.

In addition, as shown in FIG. 8, the one end of the above-mentioned vibrating body 13 is protruded, and the fixing surface 13a is formed and this part can be fixed to the support body 14. As shown in FIG.

The present invention as described above is to minimize the components of the vibration generating device, while simplifying the coupling structure to facilitate the manufacturing process, while improving the manufacturability, while utilizing the magnetic field using the "e" type core In addition to improving the performance, the vibration force is obtained from the pendulum movement to increase the vibration and reduce the noise, thereby improving the vibration force and improving the vividness of the vibration. Thus, the effect of minimizing the overall area and volume is obtained.

1 is a perspective view of the cover open showing the configuration of the subject innovation.

Figure 2 is an exploded perspective view showing the configuration of the present invention.

Figure 3 a, b is a cross-sectional view showing the configuration and operating state of the subject innovation.

Figure 4 is a cross-sectional view showing an operating state of the present invention.

5 to 8 is an exemplary view showing another embodiment of the present invention.

<Description of Signs of Major Parts of Drawings>

10: vibration generating device 11: case

11a: cover 11b: heat sink

11c: fitting hole 12: drive body

12a: coil 12c: core

12c: fitting protrusion 13: vibrating body

14 support body 14a cutting end

14b: bending extension 15: fixed body

Claims (4)

A case 11 for hermetically receiving the component; A driver 12 fixed to one side of the case 11 to generate a magnetic field by an AC signal applied from the outside; A vibrating body 13 pendulum-moved by an electromagnetic field generated by the driving body 12; In the vibration generating device comprising a support 14 for supporting the case 11 so that the vibrating body 13 pendulum movement in the region of the electromagnetic field generated by the drive body 12, the case 11 To a circular shape, the support body 14 is a ring-shaped leaf spring, and one end of the outer circumferential surface is welded to the case 11, and the drive body 12 is biased to one side inside the ring-shaped support body 14. It is fixed so that the vibration generating device, characterized in that the vibration generating device is configured by partially engaging the inner circumferential surface of the support 14 in a semi-ellipse so as to be located on one side of the drive body (12). The bending end portion 14a of the support body 14 is bent to the outside to form a bending extension portion 14b, and is formed by impregnating and fixing the case 11 integrally with the case 11 when the case 11 is ejected. Vibration generating device characterized in that. The bending extension portion 14b is further extended, and the case 11 has a through hole 11d through which the bending extension portion 14b can penetrate, and penetrates the through hole 11d. Vibration generating device characterized in that the bent configuration by bending the end of the extension portion (14b). 3. The vibration generating device according to claim 2, wherein the fixing body (14c) is fixed to an end of the bending extension part (14b).