KR20050100547A - A vibrator of hand phone - Google Patents

Abstract

The present invention relates to a vibration generating device of a mobile communication terminal, and more particularly, to make it easy to be mounted on the applied device by slimming the vibration generating structure in the form of a solenoid to enable surface mounting and at the same time soldering the coil terminal (Soldering) Terminals are provided on the connecting plate to be connected to facilitate external connection, while the shock and vibration of the magnetic plunger vibrating according to the magnetic change are minimized to minimize noise while using the repulsive force generated with the buffer. In addition to improving the power, the winding height of the coil wound on the bobbin is shorter than the length of the magnetic plunger. Carrying to prevent stationary malfunctions It relates to a vibration generator of the new terminal.

The present invention for this purpose is a non-magnetic material in the vibration generating apparatus of the mobile communication terminal is provided with a coil for generating a magnetic force by the applied electric signal (power source), and a magnetic plunger linearly moving inside the coil in accordance with the change of the magnetic force, And a bobbin of a tubular shape in which a coil is wound only on a part of an outer surface thereof; Yokes respectively installed at both ends of the bobbin such that elastic bodies fitted to one side thereof face each other inside the bobbin; A magnetic plunger introduced into the bobbin and installed to vibrate between the elastic bodies of the yoke; A connecting plate installed only at one side of the outer surface of the yoke; Consists of a connection terminal and a terminal having a terminal connected to the wire and the terminal is connected to the connecting terminal is provided with a soldering coupling to the terminal of the coil on one side of the package to wrap each component from the outside to enable soldering coupling It is characterized by.

Description

Vibration generator of portable communication terminal {A vibrator of hand phone}

The present invention relates to a vibration generating device of a mobile communication terminal, and more particularly, by making the vibration generating structure in the form of a solenoid and slimming the surface mounting to facilitate the mounting to the applied device and at the same time soldering the coil (Soldering) Terminals are provided on the connecting plate to be connected to facilitate external connection, while the shock and vibration of the magnetic plunger vibrating according to the magnetic change are minimized to minimize noise while using the repulsive force generated with the buffer. In addition to improving the power, the winding height of the coil wound on the bobbin is shorter than the length of the magnetic plunger, so that the magnetic plunger responds to the change of the magnetic lines generated in the conventional solenoid type at the bobbin center according to the polarity formed in the coil. Carrying to prevent stationary malfunctions It relates to a vibration generator of the new terminal.

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 generating device that generates vibration as well as sound and outputs sound in three dimensions.

The vibration generating apparatus includes a motor driving method for generating vibration by centrifugal force of a rotor eccentrically fixed to a rotating shaft of a motor, and a magnetic plunger that linearly moves inside a coil generating magnetic force by an electric signal (power source) applied thereto. The solenoid method that generates the is representative.

For reference, the solenoid has a dictionary meaning of "coil wound in a tubular", and the tubular coil is called a solenoid coil, and the solenoid represents a converter that converts electrical energy into mechanical energy by magnetic force generated in the air gap. .

Most solenoids are formed of magnetic plungers moving by magnetic force around a coil, a case surrounding the outside, and a magnetic material corresponding to the core inside the coil. When a current is applied to the inner coil, the solenoid is applied to the magnetic circuit surrounding the coil. The magnetic flux flows, and the magnetic flux in the magnetic circuit generates a magnetic force on the magnetic plunger to operate the solenoid.

Conventional vibration generating apparatus using the solenoid as described above has the advantage of less waste of vibration energy than the motor driving method and when the AC signal is applied, mechanical resonance occurs due to the physical characteristics of the magnetic circuit and the driving magnet at a specific frequency. The vibration force is changed according to the frequency, that is, the magnitude of the vibration force can be adjusted, while the heat is generated in the coil to increase the resistance, the vibration energy is lowered, and the deformation of the coil is caused by thermal expansion or thermal contraction. It is.

In addition, when the plunger is a magnet, the magnetic force generated by the application of the AC signal can be maximized according to the principle of action reaction, so that the vibration force can be maximized. However, when the magnetic plunger is located at the center of the coil during the reciprocating motion. There was a significant problem in the nature of the balance of forces that could attenuate or stop the reciprocating motion.

In addition, the magnetic plunger that moves up and down due to the change of the magnetic force directly collides with both ends of the case, so that the impact force is transmitted to the vibration generating device as well as other devices and parts, thereby affecting the overall characteristics or disintegrating the fixing force. It is.

In addition, most of the terminals to apply an external electrical signal to the coil is used to connect the wiring by soldering, there is a cumbersome problem due to the assembly and installation, such as not easily installed.

In addition, according to the recent trend of production automation in the electronics industry, there is a demand for a vibration generator that is easy to mount and has a thin thickness.

The present invention devised in consideration of the above problems and requirements is to make the vibration generating structure in the form of a solenoid while slimming to be surface-mounted to facilitate mounting on the applied device and at the same time the coil disconnection is soldered (soldering) coupled Terminals are provided on the connection plate to facilitate external connection, while the vibration force is improved by utilizing the repulsive force generated along with the buffer while minimizing noise by buffering / extending the shock of the magnetic plunger that vibrates according to the magnetic change. In addition, the winding height of the coil wound on the bobbin is shorter than the length of the magnetic plunger, which causes the magnetic plunger to stop at the center of the bobbin according to the polarity formed in the coil. Of the mobile communication terminal to prevent Samneunda to provide a copper-generating device to the technical problem.

According to an aspect of the present invention, there is provided a vibration generating apparatus of a portable communication terminal including a coil generating a magnetic force by an electric signal (power source) applied thereto, and a magnetic plunger linearly moving inside the coil according to a change in the magnetic force. A tubular bobbin made of a nonmagnetic material and a coil wound only on a portion of an outer surface thereof; Yokes respectively installed at both ends of the bobbin such that elastic bodies fitted to one side thereof face each other inside the bobbin; A magnetic plunger introduced into the bobbin and installed to vibrate between the elastic bodies of the yoke; A connecting plate installed only at one side of the outer surface of the yoke; Consists of a connection terminal and a terminal having a terminal connected to the wire and the terminal is connected to the connecting terminal is provided with a soldering coupling to the terminal of the coil on one side of the package to wrap each component from the outside to enable soldering coupling It is characterized by.

1 is a perspective view showing the configuration of the present invention, Figure 2 is an exploded perspective view showing the configuration of the present invention in more detail, Figure 3 is a cross-sectional view showing a configuration of the present invention in more detail 4 is a cross-sectional view showing an operating state of the present invention, Figure 5 is a cross-sectional view showing another embodiment of the structure of the elastic body of the present invention, Figure 6 is another embodiment of the structure of the elastic body of the present invention 7A) b) is a positive sectional view showing another embodiment of the magnetic plunger, FIG. 8A) b) is a positive sectional view showing another embodiment of the present invention, and FIG. 9 is a terminal Figure 10 is a perspective view showing another embodiment according to the configuration, Figure 10 is a perspective view showing another embodiment according to the configuration of the terminal, Figure 11 is a perspective view showing another embodiment according to the installation of the terminal, double reference numeral 100 Inventor It shows a vibration device.

1 to 3, a mobile communication terminal is provided with a coil for generating a magnetic force by an electric signal (power source) applied and a magnetic plunger linearly moving inside the coil in accordance with a change in the magnetic force. In the vibration generating device of the tubular shape of the non-magnetic material and the coil 112 is wound on only one side of the outer surface; Yokes 120 and 130 installed at both ends of the bobbin 110 so that the elastic bodies 121 and 131 fitted to one side thereof face each other inside the both ends of the bobbin 110; A magnetic plunger 140 inserted into the bobbin 110 and installed to vibrate between the elastic bodies 121 and 131 of the yokes 120 and 130; A connecting plate 160 installed only on one side of the outer surface of the yoke 120 and 130; The connecting terminal 161 and the connecting terminal 161 which are provided to be soldered and coupled to the terminal of the coil 112 on one side of the package to wrap each component from the outside can be soldered and coupled to the terminal input signal from the outside It is composed of a case 170 having a terminal 162 to be provided.

The connection terminal 161 and the terminal 162 provided in the case 170 are formed of a separate conductor when impregnated during case injection molding or when the connecting plate 160 is a PCB substrate.

In addition, the connecting terminal 161 and the terminal 162 is a thin plate conductor.

In the present invention configured as described above, as shown in (a) and (b) of FIG. 4, when an electrical signal (alternating current) is applied to the coil 112, the N pole and the S according to the change of the magnetic force line generated in the coil 112. The magnetic plunger 140 having the polarity of the pole is linearly reciprocated by the repulsion or suction force in the bobbin 110 in the axial direction, which causes the magnetic plunger 140 to collide with both yokes 120 and 130. Vibration or vibration force is generated by the action / reaction by the vibration of the magnetic plunger 140 itself.

As described above, when the magnetic plunger 140 collides directly with the yoke 120 and 130 while moving left and right, the shock impacts the entire vibration generating device 100, resulting in severe noise, and the accumulation of impact force. And the impact force does not only affect the vibration generating device 100, but also affects, for example, a connection plate or a mobile phone main body inside the mobile phone in which the vibration generating device 100 is mounted. That is, the vibration generating device 100 is a device for generating a vibration literally is not a device for generating noise, so the noise should be minimized, the elastic body fitted and fixed to each of the yoke (120) 130 of the present invention (121) (131) to alleviate the above problems by alleviating the noise generated in the collision between the magnetic plunger 140 and the yoke (120, 130) and buffer the impact force.

In addition, the present invention has a longer length of the magnetic plunger 140 than the winding length of the coil 112 wound on the bobbin 110, the force when the magnetic plunger is located in the center of the reciprocating motion within the bobbin 110 Equilibrium is achieved to solve the big problem in the characteristic of reducing or stopping the reciprocating motion.

For example, in the conventional vibration generating apparatus using a magnetic plunger, the magnetic pole is formed at both ends of the coil wound on the bobbin, and the N pole of the magnetic plunger is positioned in the N pole direction of the coil while the N pole and the S pole are in the state. When the S pole is located in the S pole direction of the coil, the magnetic plunger stops or progresses in the center of the force balance due to the repulsive force to push in opposite directions on both ends of the bobbin. .

However, the present invention solves the problem because the coil 112 wound on the outside of the bobbin 110 is wound to cover only a part of the magnetic plunger 140 accommodated inside the bobbin 110.

For example, as shown in (a) and b) of FIG. 4 again, when both ends of the coil 112 wound around the bobbin 110 have an N pole and an S pole, respectively, When the N pole is within the winding range of the coil 112, the magnetic plunger 140 repels the N pole of the coil 112, is attracted to the S pole of the coil 112, moves in the opposite direction, and moves instantaneously. The magnetic plunger 140 is moved by the elastic body 131 in the opposite direction. At this time, when the magnetic force line is changed so that the coil 112 has the polarity of the S pole and the N pole, the N pole of the magnet plunger 140 is coiled. It moves to the elastic body 121 side by the force attracted by the S pole of 112, and the force repulsed by the N pole of the coil 112. As shown in FIG.

In this case, the moving force is a force in which the magnetic plunger 140 is elastically struck from the elastic body 131, and the force sucked into the S pole of the coil 112 and the force repulsed from the N pole of the coil 112 are combined. Therefore, the moving speed is increased and the force is increased by the high speed to increase the vibration force (the force of the left and right reciprocating motion).

Furthermore, in the present invention, when the magnetic plunger 140 collides with the elastic bodies 121 and 131, the shock is absorbed and the vibration force transmitted to the outside is reduced, but the magnet collides with the elastic bodies 121 and 131. It is compensated by the repulsive force (elastic force) of the elastic bodies 121 and 131 which elasticize the plunger 140, and the vibration force is increased according to the elastic modulus of the elastic bodies 121 and 131.

In addition, according to the present invention, heat is generated in the coil 112 by the flow of an electrical signal and the vibration of the magnetic plunger 140, which causes the bobbin 110 to prevent the coil 112 from being deformed, thereby providing a constant output. It will keep the characteristics.

In addition, the present invention is mounted by a soldering operation with an external terminal through a thin conductor, which is a terminal 162 provided on the case 160.

In other words, the solder cream is marked on the mounting terminal on the main body PCB of the electronic product requiring vibration, such as a mobile communication terminal, and the solder cream is marked on the vibration generating device 100 through a mounter while being automatically transferred through the transfer device. It is completed by mounting and soldering to the part where it is made, so assembly production is facilitated.

By configuring the present invention with the above embodiment can be obtained the above-described effect, but may be modified to another embodiment to increase the effect or obtain other effects, it will be described in detail As follows.

First, as an embodiment of the elastic body 121, 131, it is preferable to apply a coil spring, as shown in the accompanying drawings, Figures 2 to 4, but as shown in Figure 5, the leaf spring (121 ') ( 131 'may be applied, and as shown in FIG. 6, it is preferable to apply spherical elastic bodies 121 "and 131" of a silicon material having a high modulus of elasticity, and the spherical elastic bodies 121 "may be applied. ) 131 ″ is a good example of better shock absorption and better repulsion than when silicon is in a planar state, so that the vibration can be improved while absorbing the impact to the maximum.

In addition, the present invention, as shown in Figure 7a) of the accompanying drawings, by coupling the heavy metal pieces 141 to both ends of the magnetic plunger 140 to increase the weight of the magnetic plunger 140 to increase the kinetic force, The power may be improved, and the same effect may be obtained by combining the metal piece 141 in the middle of the magnet plunger 140, as shown in b) of FIG. 7. Likewise, the vibration surface of the magnet plunger 140 may be magnetized (a helical magnetized magnet) to be inclined at an angle at a boundary between the N pole and the S pole.

In addition, as another embodiment of the present invention, as shown in Figure 8a) of the accompanying drawings, provided with a guide iron core 150 between the elastic body 121, 131 of the yoke 120, 130, magnet plunger It is also preferable to form a through hole 142 in the center of the 140 to move up and down on the guide iron core 150, as shown in b) of Figure 8, the guide for supporting the guide core (150) It is also preferable that the support plate 151 is integrally provided at both ends of the iron core 150 so as to be firmly supported between both yokes 120 and 130.

In addition, the present invention, as shown in the accompanying drawings, Figures 9 and 10, the terminal 162 is impregnated with the case 170 to the elastic pin 162-2 made of a plate body, or with a spring 162-3 It is also possible in one embodiment to be detachable rather than fixed by soldering.

In addition, the connection plate 160 of the present invention, as shown in the accompanying drawings, as shown in Figure 11, by providing a connection terminal 161 and the terminal 162 by configuring a printed circuit board, so as to be connected to the external power supply terminal from the side You may.

In addition, the present invention, as shown in the accompanying drawings, Figure 12, the case 170 to the upper shape of the enclosure shape, the cover 172 is also provided separately to enable mutual coupling (fitting or welding) components It may be effective in assembling and repair of the other preferred embodiment, and as shown in the accompanying drawings, Figure 13, while bending the case 170 in the shape of "형상", a pair of projections 170 at each end of the upper end (170) ') May be integrally formed and the cover 172 may be provided with a mounting auxiliary terminal 170 ″ separate from the terminal 162 so that the surface mount can be easily and firmly mounted.

That is, by forming and assembling the grooves 170 ′ and corresponding grooves on the PCB of the mobile communication terminal, the vibrations may be firmly fixed to the PCB even in the vibration of the apparatus 100.

In addition, the present invention, as shown in Figure 14, the case 170 is configured in a circular shape, the internal components may be configured to match the circular, and all other polygons and squares also the scope of the present invention Be aware that it belongs to.

As described above, when the present invention is applied in a circular form, as shown in the accompanying drawings, the guide iron core 150 is configured in the form of a screw having a gentle curve, the through hole 142 of the plunger 140 In addition, it is possible to obtain a vibration force by the centrifugal force of the plunger 140 by rotating the plunger 140 in the form of a screw to move up and down to improve the vibration force, as shown in Figure 16, the plunger 140 The through hole 142 of the eccentric configuration may further increase the centrifugal force.

In addition, as shown in FIG. 17, a flat part 171 having a predetermined width is formed on the outer circumferential surface of the case 170 which is circular, and a coil 112 provided inside one side of the flat part 171. It is also preferable to install the thin plate conductor 162-4 to which the disconnection of the wire is connected to significantly lower the installation height of the vibration generating device 100.

In the present invention as described above, the vibration generating structure has a solenoid shape and is slimmed to enable surface mounting, and at the same time, the terminal is provided on a connection plate to which coil disconnection is soldered and facilitated mounting to an applied device. By making the external connection easier, the shock absorbing and recharging of the shock of the magnetic plunger vibrating according to the magnetic change minimizes the noise and improves the vibration force by using the repulsive force generated along with the cushioning. By shortening the coiling height of the coil to be smaller than the length of the magnetic plunger, the magnetic plunger responding to the change of the magnetic force line generated in the conventional solenoid type prevents the malfunction of stopping at the bobbin center according to the polarity formed in the coil.

1 is a perspective view showing the configuration of the present invention

Figure 2 is an exploded perspective view showing in more detail the configuration of the present invention

3 is a cross-sectional view showing in more detail the configuration of the present invention

Figure 4a) b) is a cross-sectional view of the operating state showing the operating state of the present invention

Figure 5 is a front sectional view showing another embodiment of the structure of the elastic body of the present invention

Figure 6 is a cross-sectional view showing another embodiment of the structure of the elastic body of the present invention

Figure 7a) b) c) is a front cross-sectional view showing another embodiment of the magnetic plunger

Figure 8a) b) is a cross-sectional view showing another embodiment of the present invention

9 is a perspective view showing another embodiment according to the configuration of the terminal

10 is a perspective view showing another embodiment according to the configuration of the terminal

11 is a perspective view showing another embodiment according to the installation of the terminal

12 is a perspective view showing another embodiment of the case

13 is a perspective view showing another embodiment of the case

14 is a perspective view showing another embodiment according to the shape of the present invention

15 is a perspective view showing another embodiment according to FIG.

16 is a perspective view showing another embodiment according to FIG.

17 is a perspective view showing another embodiment according to FIG.

<Description of Signs of Major Parts of Drawings>

100: vibration generating device 110: bobbin

112: coil 120,130: yoke

121131: Elastic 140: Magnetic Plunger

150: guide iron core 160: connection plate

161: connecting terminal 162: terminal

170: case

Claims (21)

A vibration generating apparatus of a portable communication terminal having a coil for generating a magnetic force by an electric signal (power source) applied and a magnetic plunger linearly moving inside the coil in response to a change in the magnetic force, wherein the vibration generating device of the portable communication terminal is made of nonmagnetic material and is formed on only one side of the outer surface. A bobbin 110 having a tubular shape in which the coil 112 is wound; Yokes 120 and 130 installed at both ends of the bobbin 110 so that the elastic bodies 121 and 131 fitted to one side thereof face each other inside the both ends of the bobbin 110; A magnetic plunger 140 inserted into the bobbin 110 and installed to vibrate between the elastic bodies 121 and 131 of the yokes 120 and 130; A connecting plate 160 installed only on one side of the outer surface of the yoke 120 and 130; The connecting terminal 161 and the connecting terminal 161 which are provided to be soldered and coupled to the terminal of the coil 112 on one side of the package to wrap each component from the outside can be soldered and coupled to the terminal input signal from the outside Vibration generating device of a mobile communication terminal, characterized in that consisting of a case 170 is provided with a terminal 162. The vibration generating apparatus of claim 1, wherein the elastic bodies (121) (131) installed in the yoke (120) (130) are coil springs. The vibration generating apparatus of claim 1, wherein the elastic bodies (121) (131) installed in the yoke (120) (130) are leaf springs. The vibration generating device of claim 1, wherein the elastic bodies (121) (131) installed in the yoke (120) (130) are spherical volume bodies. The vibration generating device of claim 1, wherein a heavy metal piece (141) is coupled to both ends of the magnetic plunger (140). The vibration generating device of claim 5, wherein the metal piece (141) is coupled to the middle of the magnetic plunger (140). The vibration generator of claim 5, wherein the magnet plunger (140) is magnetized so that the N / S pole interface is inclined. The guide iron core 150 is provided between the elastic bodies 121 and 131 installed in the yokes 120 and 130, and the through hole 142 is formed in the center of the magnet plunger 140. Vibration generating device of the portable communication terminal, characterized in that configured to move left and right on the guide iron core (150). The vibration generating device of claim 8, wherein the support plate (151) is integrally provided at both ends of the guide iron core (150). The vibration generating apparatus of claim 1, wherein the connection plate (160) is a printed circuit board having a connection terminal (161) and a terminal (162) connected by conducting wires. The vibration generating apparatus of claim 1, wherein the terminal (162) is a thin plate conductor which can be directly soldered to an external terminal. The vibration generating apparatus of claim 1, wherein the terminal (162) is a plate-shaped elastic pin (162-2). The vibration generating apparatus of claim 1, wherein the terminal (162) is a coil spring (162-3). The vibration generating apparatus of claim 1, wherein the case (170) is formed in an elliptical shape having a flat upper and lower portions, and the internal components are configured to correspond to the elliptical case (170). 15. The vibration generating apparatus of claim 14, wherein the case (170) has an upper shape of an enclosure, and a cover (172) is separately provided to be coupled to each other. The method of claim 15, wherein the case 170 is bent in a "┗┛" shape, and a pair of protrusions 170 'are formed integrally at both ends of the upper end, and the cover 172 is separate from the terminal 162. Vibration generating device of a portable communication terminal, characterized in that it comprises a mounting auxiliary terminal (170 ") of the. The vibration generating apparatus of claim 1, wherein the case (170) is configured in a circular shape, and the internal components are also configured to conform to the circular case (170). 18. The method of claim 17, wherein a guide iron core 150 in the form of a screw having a gentle curve is provided between the elastic bodies 121 and 131 installed on the yokes 120 and 130, and is equal to the guide iron core 150. Vibration generating device of the mobile communication terminal, characterized in that the magnetic plunger (140) is formed in the through hole 142 of the screw type in the magnetic plunger (140) to be rotatable while moving up and down. The vibration generating apparatus of claim 18, wherein the through hole (142) of the magnetic plunger (140) is eccentrically configured. 18. The vibration generating device as set forth in claim 17, wherein a flat portion (171) having a predetermined width is formed on an outer circumferential surface of the circular case (170). 21. The vibration generating device of claim 20, wherein a thin plate conductor (162-4) to which a coil (112) terminal is connected to one side of the flat portion (171) is provided.