KR20230123371A - Vibration generator assembly of one body - Google Patents

Abstract

The vibration generator of the integrated body of the present invention is formed in a plate shape, a support plate having grooves dug inward on both sides thereof, a first vibration unit coupled to the support plate and located inside the groove, one end of which is higher than the groove in the support plate. coupled to an inner portion, the other end including an elastic part extending from one end toward the groove part and a second vibration part coupled to the other end of the elastic part and spaced apart from the first vibration part, wherein the first vibration part includes an electromagnet and a magnetic body, wherein the second vibrating unit includes an electromagnet and the other one of a magnetic body, wherein vibration is generated by an interaction between the electromagnet and the magnetic body.

Description

Vibration generator having an integral body {Vibration generator assembly of one body}

The present invention relates to a vibration generator composed of an integral body and generating vibrations.

In recent electronic devices, there are many cases in which the device is operated by touch using a sensed object (eg, a finger). In the case of operation through a touch of a sensing object, there is an advantage in that an input and an operation can be performed on a device without using a mouse or keyboard, and is widely used in recent electronic devices.

Electronic devices of the past only sensed the movement or motion of a sensing object through a touch sensor, but did not provide separate feedback for this. However, recent electronic devices may provide vibration feedback according to manipulation of a sensing object by mounting a vibration generator therein. Accordingly, the user may receive haptic feedback corresponding to his/her touch manipulation.

However, the feedback through the conventional touch sensor generates a constant vibration regardless of the strength of the user's touch pressure applied to the touch manipulation. This is because the user does not recognize the vibration feedback as a natural repulsive action according to the intensity of the pressure applied by the user, and feels a sense of difference in the vibration feedback. In addition, there is a problem in that the strength or direction of the vibration is not transmitted strongly enough to be felt by the user depending on the internal coupling position of the vibration generator.

Accordingly, there is an increasing demand for improving the satisfaction of the haptic experience by improving the coupling position of the vibration generator and the intensity or direction of the generated vibration.

Republic of Korea Patent Publication No. 10-2013-0122699 (published date: November 07, 2013, title of invention: touch pad with force sensors and actuator feedback)

An object of the present invention, a vibration generator having an integral body, effectively provides haptic response vibration according to the motion of a sensing object.

In addition, the purpose of the vibration generator having an integral body according to the present invention is to transmit vibrations strongly and effectively through an integral coupling structure.

The vibration generator of the integrated body of the present invention is formed in a plate shape, a support plate having grooves dug inward on both sides, a first vibration unit coupled to the support plate and located inside the groove, one end of which is higher than the groove in the support plate. coupled to an inner portion, the other end including an elastic part extending from one end toward the groove part and a second vibration part coupled to the other end of the elastic part and spaced apart from the first vibration part, wherein the first vibration part includes an electromagnet and a magnetic body, wherein the second vibrating part includes the other one of an electromagnet and a magnetic body, and vibration is generated by an interaction between the electromagnet and the magnetic body.

In one embodiment of the present invention, a frame coupled to the support plate, one end coupled to one end of the elastic part, and the other end coupled to the first vibrating unit may be further included.

In one embodiment of the present invention, the frame is formed in the shape of a closed curve, and a portion of the frame may be positioned to cross the groove.

In one embodiment of the present invention, one end of the frame may be located between the support plate and one end of the elastic part.

In one embodiment of the present invention, the elastic part may be coupled to a lower surface of the support plate, and the second vibrating part may be coupled to a lower surface of the other end of the elastic part.

In one embodiment of the present invention, an end of the second vibrating unit in the direction of the groove may protrude more toward the groove than the other end of the elastic part.

In one embodiment of the present invention, the first vibration unit may be located above the second vibration unit.

In one embodiment of the present invention, a square-shaped opening may be formed inside the elastic part.

In one embodiment of the present invention, it may include a coupling member that is located between the elastic part and the support plate, couples the elastic part and the support plate, and is formed of a flexible material.

In one embodiment of the present invention, a frame coupled to the support plate and positioned to cross the groove part may be further included, and the first vibrating part may be a coil wound around a part of the frame as a core.

In one embodiment of the present invention, the core may include a plurality of stacked metal plates.

In one embodiment of the present invention, the frame may include a base plate coupled to the support plate and a laminated plate stacked and coupled to the base plate and spaced apart from the support plate.

In one embodiment of the present invention, the laminate plate may be coupled to the lower surface of the base plate.

In one embodiment of the present invention, the second vibrating unit is located lower than the core, and a portion of the first vibrating unit located below the core may face the second vibrating unit in a horizontal direction.

In one embodiment of the present invention, when vibration is generated by the interaction between the first vibrating unit and the second vibrating unit, the upper surface of the elastic part is spaced apart from the lower surface of the support plate and hits the lower surface of the support plate. doing can be repeated.

The vibration generator having an integrated body according to the present invention can effectively provide haptic response vibration according to the motion of a sensing object.

In addition, the vibration generator having an integral body according to the present invention has the advantage of being able to transmit vibrations strongly and effectively through an integral coupling structure.

1 is an exploded perspective view of a vibration generator of an integral body according to an embodiment of the present invention.
Figure 2 is a plan view of a part of the vibration generator of the integral body according to an embodiment of the present invention.
Figure 3 is a cross-sectional view of a part of the vibration generator of the integral body according to an embodiment of the present invention.
Figure 4 is a cross-sectional view of a part for explaining the vibration state of the vibration generator of the integral body according to an embodiment of the present invention.
Figure 5 is a cross-sectional view of a part of the vibration generator of the integral body according to another embodiment of the present invention.

Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings, but the same or similar elements are given the same reference numerals regardless of reference numerals, and redundant description thereof will be omitted. In addition, in describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiment disclosed in this specification, the detailed description thereof will be omitted.

Terms including ordinal numbers, such as first and second, may be used to describe various components, but the components are not limited by the terms. These terms are only used for the purpose of distinguishing one component from another.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, each step described can be performed regardless of the listed order, except for the case where it must be performed in the listed order due to a special causal relationship.

In this application, terms such as "comprise" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Hereinafter, an embodiment of the present invention will be described with reference to FIG. 1 .

1 is an exploded perspective view of a vibration generator of an integral body according to an embodiment of the present invention.

Referring to FIG. 1 , the vibration generator of the present invention includes a support plate 100 , a first vibrating unit 200 , an elastic unit 300 , a second vibrating unit 400 and a frame 500 .

The support plate 100 corresponds to a configuration forming the uppermost part of the vibration generator of the integral body. The support plate 100 is formed in a plate shape. Support plate 100 is grooved inward on both sides. Components may be coupled to the lower surface of the support plate 100 . A touch sensor may be positioned on the upper surface of the support plate 100 . The touch sensor is a part that is in contact with the sensing object. A position of a sensing object such as a finger or an operation such as movement and pressing may be sensed through the touch sensor.

The first vibration unit 200 is located inside the groove 110 formed by the support plate 100 . The first vibration unit 200 is coupled to the frame 500 coupled to the support plate 100 . The frame 500 may be formed to cross the groove 110 , and the first vibrating unit 200 may be connected to the support plate 100 through the frame 500 . In FIG. 1, the first vibration unit 200 is shown as an electromagnet 200. Specifically, the first vibrator 200 may include a coil wound around the core using a portion of the frame 500 as a core. Here, the core may protrude in the direction of the second vibrating unit 400 to be described later, and the coil may be wound around the protruding direction as an axis. Accordingly, the first vibrator 200 may generate a magnetic field in the direction of the second vibrator 400 to be described later.

In the accompanying drawings, four coils each wound on four independent cores are shown. Through this, the first vibration unit 200 may function as four electromagnets 200 . In the present invention, the number of electromagnets 200 is not limited. In some cases, the coil may be formed in a conductive pattern on a portion of the frame 500 .

The elastic part 300 is located below the supporting plate 100 . The elastic part 300 may have a rectangular opening formed therein. One end of the elastic part 300 is coupled to an inner portion of the support plate 100 than the groove part 110, and the other end extends from one end toward the groove part 110. The second vibration unit 400 is coupled to the other end. Specifically, only one end of the elastic part 300 is coupled to the support plate 100, and a portion other than one end is minutely spaced apart from the support plate 100. Since the elastic part 300 has an elastic force, the spaced part can be moved by an external force. Accordingly, vibration generated by interaction between the first vibrating unit 200 and the second vibrating unit 400 to be described later may be amplified or attenuated.

The second vibrating part 400 is located at the other end of the elastic part 300 in the direction of the groove part 110 formed by the support plate 100 . The second vibrating part 400 is coupled to the elastic part 300 . The second vibrating unit 400 is spaced apart from the first vibrating unit 200 . In FIG. 1, the second vibrating unit 400 is shown as a magnetic body 400. Specifically, the magnetic body 400 may be formed of an iron core, ferrite, or permanent magnet. In the accompanying drawings, the magnetic body 400 is shown as one, but the present invention is not limited to the number of the magnetic body 400.

The frame 500 is located between the elastic part 300 and the support plate 100 . The frame 500 is formed in the shape of a closed curve. The frame 500 is coupled to the elastic part 300 , the support plate 100 and the first vibrating part 200 . The frame 500 is coupled to the lower surface of the support plate 100 . Specifically, one end of the frame 500 is coupled to one end of the elastic part 300 and the other end of the frame 500 is coupled to the first vibrating unit 200 . The frame 500 may be formed as an integral module by combining the first vibrating unit 200 and the elastic unit 300 to which the second vibrating unit 400 is coupled before being coupled to the lower surface of the support plate 100 . Therefore, by combining the integral module to the lower surface of the support plate 100, a vibration generator having an integral body is configured.

In FIG. 1 , the first vibrating unit 200 is an electromagnet 200 and the second vibrating unit 400 is a magnetic body 400, but the first vibrating unit 200 and the second vibrating unit 400 are can be reversed from each other. In this configuration, when an alternating current is applied to the coil of the electromagnet 200, vibration occurs due to an interaction between the electromagnet 200 and the magnetic body 400. These vibrations can be separately fixed due to the structure in which the support plate 100 and the integrated module are combined into one, and can minimize vibrations escaping to each fixed position compared to when they are driven. Therefore, the vibration can be concentrated and transmitted to the support plate 100 . These vibrations are transmitted to the user who manipulates the vibration generator of the integral body, so that the user can sense the vibration according to the manipulation. In addition, a natural haptic response can be expressed by the elastic part 300 naturally amplifying or damping vibration by vibration. The elastic part 300 is spaced apart from the support plate 100 and one end, and may hit the lower surface of the support plate 100 after being spaced apart from the lower surface of the support plate 100 during vibration.

Hereinafter, an embodiment of the present invention will be described with reference to FIG. 2 . For convenience of explanation, the embodiment described with reference to FIG. 2 will be described focusing on different points from the embodiment described in FIG. 1 .

Figure 2 is a plan view of a part of the vibration generator of the integral body according to an embodiment of the present invention.

Referring to FIG. 2 , the coupling member 310 is positioned between the support plate 100 and the elastic part 300 . A part of the support plate 100 in the groove part 110 direction and a part of the elastic part 300 in the direction of the other end are coupled through the coupling member 310 . Coupling member 310 is formed of a flexible material. The shape of the coupling member 310 may be deformed by an external force. Changes in the shape of the elastic part 300 due to the weight of the second vibrating part 400 coupled to the other end of the elastic part 300 through the coupling member 310 can be minimized. Since only a portion of the elastic portion 300 is coupled to the coupling member 310, the rest of the elastic portion 300 except for one end coupled to the support plate 100 and a portion coupled to the coupling member 310 may be spaced apart. there is. When the elastic part 300 moves upward due to the vibration due to the interaction between the first vibrating part 200 and the second vibrating part 400, the coupling member 310 becomes compressed in the vertical direction, and the elastic part 310 becomes elastic. When the unit 300 moves downward, the coupling member 310 is extended in the vertical direction to form an elongated shape. Nevertheless, the coupling member 310 should maintain the coupling between the elastic part 300 and the support plate 100 . In addition, one end of the elastic part 300 must be maintained in combination with the support plate 100 . In the vibration generator having an integral body, the stronger the mutual magnetic force between the first vibrating unit 200 and the second vibrating unit 400, the greater the number of turns of the coil, the greater the strength of the current applied to the coil, As the magnetization force of the magnetic material 400 increases, greater vibration can be generated.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 3 and 4 .

For convenience of description, the embodiment described with reference to FIGS. 3 and 4 will be described focusing on differences from the embodiment described in FIGS. 1 and 2 .

Figure 3 is a cross-sectional view of a part of the vibration generator of the integral body according to an embodiment of the present invention.

Referring to FIG. 3 , the electromagnet 200 as the first vibration unit 200 is coupled to the support plate 100 . The electromagnet 200 may be coupled to the frame 500 coupled to the support plate 100 and positioned inside the groove 110 of the support plate 100 . The core constituting the electromagnet 200 is a part of the frame 500 positioned to cross the groove 110 . A portion of the frame 500 constituting the core includes a base plate coupled to the support plate 100 and a laminated plate spaced apart from the support plate 100 . The laminated plate is coupled to the lower surface of the base plate. The laminated plate may be formed of a plurality of laminated metal plates. Eddy current flowing through the electromagnet 200 may be reduced through the stacked structure 210 .

The magnetic material 400, which is the second vibrating part 400, is coupled to the elastic part 300. The magnetic material 400 is coupled to protrude toward the groove portion 110 more than the other end of the elastic portion 300 . Specifically, the magnetic body 400 is located lower than the core of the electromagnet 200 and faces a portion located below the core of the electromagnet 200 in a horizontal direction. A portion of the upper surface of the magnetic body 400 is coupled to the lower surface of the elastic part 300 . Therefore, the magnetic material 400 may be coupled to protrude. Due to the structure in which the magnetic body 400 protrudes and is coupled, a part of the protruding magnetic body 400 vibrates in vertical and horizontal directions. The electromagnet 200 and the magnetic body 400 are spaced apart.

The coupling member 310 is located between the support plate 100 and the elastic part 300 . Since the coupling member 310 is coupled between the support plate 100 and the elastic portion 300, the shape of the coupling member 310 may be deformed when the elastic portion 300 moves by an external force. Since the elastic part 300 is spaced apart from the support plate 100 except for the coupling member 310 and one end, a natural haptic response can be expressed by naturally amplifying or damping the vibration.

Through this configuration, when vibration occurs due to the interaction between the electromagnet 200 and the magnetic body 400, the magnetic body 400 vibrates not only in the horizontal direction but also in the vertical direction, thereby generating stronger vibration. The generated strong vibration is intensively transmitted to the support plate 100 due to a coupling structure in which the support plate 100, the electromagnet 200, and the magnetic body 400 are connected as one. The concentrated vibration is transferred to the user who manipulates the vibration generator of the integral body, so that the user can more reliably sense the vibration according to the manipulation.

Figure 4 is a cross-sectional view of a part for explaining the vibration state of the vibration generator of the integral body according to an embodiment of the present invention.

Referring to FIG. 4 , when the magnetic material 401 vibrates, the coupling structure with the elastic part 300 is maintained, but a part biased toward one axis vibrates in vertical and horizontal directions. The elastic part 300 is spaced apart from the one end coupled to the support plate 100 and the part coupled to the coupling member 310, and is spaced apart from the lower surface of the support plate 100 during vibration and then the lower surface of the support plate 100. can hit

In this configuration, the magnetic body 400 functions as a target metal 401 for the electromagnet 200 . The target metal 401 may be specifically formed of an iron core, ferrite or permanent magnet. When vibration occurs due to the interaction between the electromagnet 200 and the target metal 401, the target metal 401 vibrates not only in the horizontal direction but also in the vertical direction, thereby generating stronger vibration. The generated strong vibration is transferred to the support plate 100 due to the coupling structure between the support plate 100 and the elastic part 300 in which the electromagnet 200 and the target metal 401 are coupled. These vibrations are transmitted to the user who manipulates the vibration generator of the integral body, so that the user can more reliably sense the vibration according to the manipulation.

Hereinafter, another embodiment of the present invention will be described with reference to FIG. 5 .

Figure 5 is a cross-sectional view of a part of the vibration generator of the integral body according to another embodiment of the present invention. For convenience of explanation, the embodiment described with reference to FIG. 5 will be described focusing on differences from the embodiment described above with reference to FIGS. 1 to 4 .

In FIG. 5 , the first vibrating unit 420 is a magnetic body 420 and the second vibrating unit 220 is an electromagnet 220 . Specifically, the magnetic body 420 of the first vibrating unit 420 may be formed of an iron core, ferrite, or a permanent magnet. The magnetic material 420 is coupled to the lower surface of the support plate 100 .

The first vibration unit 420 is formed of a magnetic material 420 . The magnetic material 420 may be coupled to the frame 500 coupled to the support plate 100 and positioned inside the groove 110 of the support plate 100 . The magnetic material 420 is coupled to the frame 500 positioned to cross the groove 110 .

The electromagnet 220 of the second vibrating unit 220 is formed of a core and a coil. The core may be formed of laminated plates. Since the core is formed as a stacked structure 210 , eddy currents may be reduced. A part of the lower surface of the electromagnet 220 is coupled to a part of the upper surface of the elastic part 300 . Therefore, the electromagnet 220 is coupled to protrude toward the groove portion 110 more than the other end of the elastic portion 300 . Specifically, the electromagnet 220 is located lower than the magnetic body 420, and a portion located below the core of the electromagnet 220 faces the magnetic body 420 in a horizontal direction. When a current is applied to the coil of the electromagnet 220, vibration is generated by interaction with the magnetic body 420. The electromagnet 220 and the magnetic body 420 are spaced apart. Due to the structure in which the electromagnet 220 protrudes and is coupled, a part of the protruding electromagnet 220 vibrates in vertical and horizontal directions. The electromagnet 220 and the magnetic body 420 are spaced apart.

Through this configuration, when vibration occurs due to the interaction between the magnetic body 420 and the electromagnet 220, the electromagnet 220 vibrates not only in the horizontal direction but also in the vertical direction, thereby generating stronger vibration. The generated strong vibration is transferred to the support plate 100 due to a coupling structure in which the support plate 100, the magnetic material 420, and the electromagnet 220 are connected. These vibrations are transmitted to the user who manipulates the vibration generator of the integral body, so that the user can more reliably sense the vibration according to the manipulation.

In the vibration generator of the above-described integral body, all components except for the support plate may be formed as a single module. Specifically, the first vibrating unit 200 is coupled to the other end of the frame 500, and the elastic unit 300 to which the second vibrating unit 400 is coupled is coupled to one end of the frame 500 to have an integral body. can By coupling the integral body to the support plate 100, it is possible to construct a vibration generator of the integral body. Through this, there is an advantage in that it is not necessary to separately adjust the distance and position between each other when combining each component.

In the above, embodiments of the vibration generator of the present invention have been described. The technical features disclosed in each embodiment of the present invention are not limited to the corresponding embodiment, and unless incompatible with each other, the technical features disclosed in each embodiment may be merged and applied to other embodiments.

Therefore, in each embodiment, each technical feature is mainly described, but each technical feature may be merged and applied to each other unless incompatible with each other.

The present invention is not limited to the above-described embodiments and accompanying drawings, and various modifications and variations will be possible from the viewpoint of those skilled in the art to which the present invention belongs. Therefore, the scope of the present invention should be defined by not only the claims of this specification but also those equivalent to these claims.

100: support plate
110: groove part
200: first vibration unit (electromagnet)
210: layered structure (laminated structure of core)
220: second vibration unit (electromagnet)
300: elastic part
310: coupling member
400: second vibration unit (magnetic body)
401: Operation of the second vibration unit (target metal)
420: first vibration unit (magnetic body)
500: frame

Claims (15)

A support plate formed in a plate shape and formed with grooves dug inward on both side surfaces;
a first vibrating unit coupled to the support plate and located inside the groove;
an elastic part having one end coupled to an inner portion of the support plate than the groove part and the other end extending from the one end toward the groove part; and
A second vibrating unit coupled to the other end of the elastic unit and spaced apart from the first vibrating unit;
The first vibrating unit includes one of an electromagnet and a magnetic body, the second vibrating unit includes the other one of an electromagnet and a magnetic body, and vibration is generated by an interaction between the electromagnet and the magnetic body.
Vibration generator in one-piece body. According to claim 1,
Further comprising a frame coupled to the support plate, one end coupled to one end of the elastic part, and the other end coupled to the first vibrating unit
Vibration generator in one-piece body. According to claim 2,
The frame is formed in the shape of a closed curve, and a portion of the frame is positioned to cross the groove.
Vibration generator in one-piece body. According to claim 2,
One end of the frame is located between the support plate and one end of the elastic part
Vibration generator in one-piece body. According to claim 1,
The elastic part is coupled to the lower surface of the support plate,
The second vibrating part is coupled to the lower surface of the other end of the elastic part
Vibration generator in one-piece body. According to claim 5,
The end of the second vibrating unit in the direction of the groove protrudes in the direction of the groove more than the other end of the elastic part.
Vibration generator in one-piece body. According to claim 1,
The first vibrating unit is located above the second vibrating unit.
Vibration generator in one-piece body. According to claim 1,
The elastic part has a square-shaped opening formed therein.
Vibration generator in one-piece body. According to claim 1,
A coupling member positioned between the elastic part and the support plate, coupling the elastic part and the support plate, and formed of a flexible material
Vibration generator in one-piece body. According to claim 1,
Further comprising a frame coupled to the support plate and positioned to cross the groove,
The first vibrating unit is a coil wound around a part of the frame as a core.
Vibration generator in one-piece body. According to claim 10,
The core includes a plurality of stacked metal plates
Vibration generator in one-piece body. According to claim 11,
the frame,
a base plate coupled to the support plate; and
Doedoe stacked and combined with the base plate, including a laminated plate spaced apart from the support plate
Vibration generator in one-piece body. According to claim 12,
The laminated plate is coupled to the lower surface of the base plate
Vibration generator in one-piece body. According to claim 10,
The second vibrating part is located lower than the core,
Of the first vibrating unit, a portion positioned below the core faces the second vibrating unit in a horizontal direction.
Vibration generator in one-piece body. According to claim 1,
When vibration is generated by the interaction between the first vibrating unit and the second vibrating unit, the upper surface of the elastic part is spaced apart from the lower surface of the support plate and then hitting the lower surface of the support plate is repeated.
Vibration generator in one-piece body.