KR101268340B1 - Motion sensing switch - Google Patents

Abstract

PURPOSE: An integrated-type motion sensing switch is provided to integrate components in order to reduce the overall size, thereby being mounted in a small mounting space of a portable device. CONSTITUTION: A light receiving element(20) is mounted on a base. Multiple LED chips(30) are arranged apart from each other around the light receiving element and emit light upward. A partition wall(40) is formed between the LED chips and the light receiving element. A block cover(60) is arranged at the top of the LED chips, the light receiving element, and the partition wall. The block cover covers an adjacent part of each LED chip to the light receiving element. A cover(70) mounted at the base covers all of the LED chips, the light receiving element, the partition wall, and the block cover. A control part activates the LED chips.

Description

Integrated motion sensing switch with blocking cover {Motion sensing switch}

The present invention relates to an integrated motion detection switch equipped with a blocking cover, and to an integrated motion detection switch equipped with a blocking cover capable of controlling various devices by detecting a user's motion without contact by a user.

With the development of electronic and communication technology, mobile terminals such as mobile phones and PDAs are indispensable in modern people's lives, and these mobile terminals have new special functions and are easily operated to improve consumer attention. have.

In addition to the telephone call function, which is a unique function, the mobile terminal provides various additional functions such as an internet access function and a game function.

In addition, various functions of the mobile terminal as described above may be controlled through the screen touch.

Since the portable terminal is designed to be compact in order to ensure mobility and portability, it is not easy to accurately select and press a key button provided in a narrow space.

In particular, when the user's activity is restricted in various situations such as moving or driving, it is difficult to perform the input operation because the user must directly touch the key button or the screen of the mobile terminal.

In order to solve this problem, a technology having a control function through a user motion detection has been developed so that the function of the portable terminal can be controlled through a non-contact operation without direct contact with an input device such as a keypad.

The contactless control device that implements such a control function can be applied to various fields such as interface devices, motion recognition games, automobile panels, and kitchen appliances as well as portable terminals.

Patent No. 10-0864288 discloses a motion detection switch.

1 is a view showing a conventional motion detection switch.

As shown in FIG. 1, the conventional motion detection switch 100 includes an imaging unit 170 including an image sensor unit 110 and a light source unit 120, and a housing 180 accommodating the imaging unit 170. And a main controller provided on the housing 180 and processing image data generated by the light transmitting unit 160 and the image capturing unit 170 formed on the housing 180 to input information. Not shown).

In addition, FIG. 1 illustrates a reflector 140 on the light transmitting unit 160.

The reflector 140 is a user's finger, and the motion detection switch 100 mounted on the mouse extracts the movement of the reflector 140 and inputs information to the electronic device.

That is, when the reflector 140 moves in a predetermined direction on the light transmitting unit 160 through which light can pass, the image sensor unit 110 continuously photographs the reflector 140 and is controlled by the main controller. Information according to the movement of the reflector 140 is input.

In detail, the light emitted from the light source unit 120 is reflected from the user's finger, which is the reflector 140, is incident on the image sensor unit 110, and the image sensor unit 110 is reflected by the reflector 140. The received light may be received to generate image data corresponding thereto.

Accordingly, the movement of the reflector 140 is recognized by the main controller, so that the electronic device can perform a function corresponding to the movement of the reflector 140.

However, in order to effectively implement such a motion detection sensor, it is necessary to space the intervals between the respective light source units 120 that detect the movement of the reflector 140.

When the interval between the light source units 120 is narrowed, since the light emitted from each light source unit 120 overlaps, the position of the reflector 140 may not be accurately recognized by the main controller.

However, if the distance between the light source unit 120 is increased, it is easy to accurately recognize the position of the reflector 140, but the overall size of the motion detection switch 100 is increased.

Accordingly, when the conventional motion detection switch 100 is mounted on a small device such as a mobile phone, a navigation bezel, a switch case, and the like, the space occupied by the motion detection switch 100 increases, thereby miniaturizing the small device. There is a problem that is difficult to do.

The present invention is to solve the above-mentioned problems, while being able to control various devices conveniently, by forming each component integrally to reduce the overall size, reducing the mounting space to be mounted on the small device to increase the size of the small device It is an object of the present invention to provide an integrated motion detection switch equipped with a blocking cover that can be kept compact without making it.

An integrated motion detection switch equipped with a blocking cover of the present invention for solving the above problems, the base and; A light receiving element mounted on the base; A plurality of light emitting diode (LED) chips disposed on the base and spaced apart from the light receiving element to emit light in an upward direction; Barrier ribs formed between the LED chip and the light receiving element; A blocking cover disposed on the LED chip, the light receiving element, and the partition wall to cover a portion adjacent to the light receiving element of each of the LED chips; A transparent cover body mounted on the base and covering all of the LED chip, the light receiving element, the partition wall, and the blocking cover; A control unit for operating the LED chip; It is made, including, the light emitted from the LED chip is blocked by the blocking cover is emitted in the opposite direction of the direction in which the light receiving element is disposed, the light receiving element is emitted from each of the LED chip by the reflector Sensing the reflected light and sending an operation signal to the controller, the controller receives the operation signal and recognizes the motion of the reflector.

The blocking cover is formed in the shape of a disc, and the center of the light emitting device is disposed to match the center of the light receiving element, and the radius of the light blocking element is longer than the shortest distance between the center of the light receiving device and the LED chip. It is formed shorter than the longest distance between chips.

The cover body is formed with a lens portion protruding convexly from the upper portion of each of the LED chip, the lens portion is formed to be inclined in the opposite direction of the direction in which the light receiving element is disposed with respect to the normal of the upper surface of the base, the LED Light emitted from the chip is emitted in a direction opposite to the direction in which the light receiving element is disposed through the lens unit.

The LED chip is composed of four and disposed at intervals of 90 ° with respect to the light receiving element, and a light emitting portion for transmitting light reflected by the reflector emitted from the LED chip on the upper portion of the light receiving element in the center of the blocking cover Is formed.

The integrated motion detection switch equipped with a blocking cover according to the present invention has the following effects.

The light emitted from the LED chip is inclined in the opposite direction to the direction in which the light receiving element is placed by the blocking cover, thereby minimizing the interference interval of the light emitted from each LED chip at a long distance, thereby preventing the operation of the external reflector without contact at a long distance. Sensitively sensitive and convenient to control small devices, the cover body covers all LED chips, light receiving elements, bulkheads, and blocking covers to form an integrated size, miniaturizing the overall size, thereby reducing the mounting space for small devices. It can be kept small without increasing.

In addition, the light emitted from the LED chip is inclined in the opposite direction of the light-receiving element through the lens portion, and the light emitted in the upper direction of the LED chip and the light-receiving element is blocked by the blocking cover, thereby emitting from each LED chip at a long distance. By minimizing the interference section of the light, the operation of the reflector can be sensitively detected.

1 is a view showing a conventional motion detection switch.
2 is a plan view of an integrated motion detection switch equipped with a blocking cover according to Embodiment 1 of the present invention;
3 is a vertical sectional view of an integrated motion detection switch equipped with a blocking cover according to Embodiment 1 of the present invention;
Figure 4 is a view showing the emission angle of the light emitted from the LED chip according to Example 1 of the present invention,
5 is a view showing a light emitting range of the LED chip according to the first embodiment of the present invention,
6 is a plan view of an integrated motion detection switch equipped with a blocking cover according to Embodiment 2 of the present invention;
Figure 7 is a vertical cross-sectional view of the integrated motion detection switch equipped with a blocking cover according to the second embodiment of the present invention,

2 is a plan view of the integrated motion detection switch equipped with a blocking cover according to the first embodiment of the present invention, Figure 3 is a vertical sectional view of the integrated motion detection switch equipped with a blocking cover according to the first embodiment of the present invention, 4 is a view showing the emission angle of the light emitted from the LED chip according to the first embodiment of the present invention, Figure 5 is a view showing the emission range of the LED chip according to the first embodiment of the present invention.

In the integrated motion detecting switch equipped with the blocking cover according to the first embodiment of the present invention, as shown in FIGS. 2 to 5, the base 10, the light receiving device 20, the LED chip 30, and the partition 40 are provided. , The compensation element 50, the blocking cover 60, the cover body 70, and a controller (not shown).

The base 10 is mounted to various devices operated by sensing the motion of a mobile terminal or other external object.

In particular, the motion detection switch according to the present embodiment is a device for sensing the motion of an external object more sensitively while miniaturizing the overall size, and it is more suitable to be mounted and used in a compact and slim device for easy portability. effective.

In addition, the motion detection switch can be applied to various convenience devices or safety devices installed in a vehicle.

As shown in FIGS. 2 and 3, the base 10 has the light receiving device 20, the LED chip 30, the partition 40, the compensation device 50, and the cover 70 mounted thereon. .

In addition, the blocking cover 60 is disposed on the base 10 to cover the light receiving device 20, the LED chip 30, the partition 40, and the compensation device 50.

Details of the blocking cover 60 will be described later.

The base 10 is electrically connected to the LED chip 30, the light receiving device 20, and the compensation device 50.

The light receiving element 20 is mounted at the center of the base 10, and when the light emitted from each of the LED chips 30 senses the light reflected by the reflector F, a current is generated to generate an operation signal to the controller. Send it.

The light emitting diode (LED) chip is formed in plural and is spaced apart from the light receiving element 20 on the base 10 to emit light in an upward direction.

Specifically, the LED chip 30 is composed of four are arranged on the upper portion of the base 10 at intervals of 90 degrees around the light receiving element 20 emits infrared rays.

Light emitted from the LED chip 30 is blocked by the blocking cover 60 to be emitted in the opposite direction to the direction in which the light receiving element 20 is disposed.

The number of the LED chip 30 can be varied according to the control method of the device equipped with a motion detection switch without limiting the number as in the first embodiment.

The partition wall 40 is formed between the LED chip 30 and the light receiving element 20.

Specifically, the partition 40 surrounds the light receiving element 20 and the compensation element 50 on the base 10.

Accordingly, the LED chip 30 and the light receiving device 20 are separated by the partition 40 so that the light emitted from the LED chip 30 is not reflected to the reflector F, but the light receiving device 20 Can be prevented from being detected directly.

As described above, since the light receiving device 20 is isolated from the LED chip 30 by the partition 40, the light receiving device 20 is prevented from directly detecting the light emitted from the LED chip 30. It can block sending the wrong operation signal of F).

The compensation device 50 is mounted on the base 10 to emit infrared rays to the light receiving device 20.

That is, since the compensation device 50 is mounted inside the partition 40 together with the light reception device 20 and is disposed toward the light reception device 20, the light reception device 20 is the compensation device. The light emitted from 50 can be detected directly.

As described above, the compensation device 50 emits light to the light receiving device 20, thereby being generated by the light receiving device 20 by light emitted from the LED chip 30 and reflected by the reflector F. The operation signal is corrected.

Specifically, the compensation device 50 emits light so that the light receiving device 20 detects a certain amount of light according to the brightness of the surrounding environment sensed by a separately mounted sensor (not shown).

That is, since environmental changes such as indoor lighting, outdoor weather, tunnels, and the like, cause a change in the light source that can be sensed by the light receiving device 20, the compensation device 50 may depend on the amount of external light. Let the light shine on (20).

The blocking cover 60 is mounted on the partition 40 and is disposed on the base 10 to cover the light receiving device 20 and the LED chip 30.

Specifically, the blocking cover 60 is formed in a disc shape so that the center portion of the blocking cover 60 coincides with the center portion of the light receiving element 20.

In the center of the blocking cover 60, a light transmitting portion 61 through which the light reflected by the reflector F is transmitted is formed on the light receiving element 20.

Accordingly, the light receiving element 20 detects the light reflected by the reflector F through the light transmitting portion 61.

And the radius of the blocking cover 60 is longer than the shortest distance between the center of the light receiving element 20 and the LED chip 30, and than the longest distance between the center of the light receiving element 20 and the LED chip 30. It is formed short.

Accordingly, the blocking cover 60 covers a portion of the upper portion of each LED chip 30 adjacent to the light receiving element 20.

As such, the blocking cover 60 covers a portion of the upper portion of the LED chip 30 adjacent to the light receiving element 20, so that the light emitted from the LED chip 30 is as shown in FIG. 4. Blocked by the blocking cover 60 is emitted in the direction opposite to the direction in which the light receiving element 20 is disposed.

The blocking cover 60 protrudes in the direction in which the compensation element 50 is disposed to cover the compensation element 50 together.

The cover body 70 is mounted on the base 10 to cover all of the LED chip 30, the light receiving device 20, the partition wall 40, and the blocking cover 60.

The cover 70 is made of a transparent material so that the light emitted from the LED chip 30 and the light emitted from the LED chip 30 to the outside are reflected to the reflector F.

The controller is mounted on the circuit board to operate the LED chip 30.

In detail, the controller sequentially flashes the four LED chips 30.

The light flashed by the controller and emitted from the LED chip 30 is reflected by the reflector F and enters the light receiving device 20 through the cover body 70 and the light transmitting part 61.

The light receiving element 20 detects the light reflected by the reflector F to generate a current, and sends an operation signal of the reflector F to the controller.

Accordingly, the controller receives the operation signal to recognize the motion of the reflector (F).

Hereinafter, a method of operating an integrated motion detection switch equipped with a blocking cover according to the above-described configuration will be described.

5 is a view showing a light emitting range (T) of the LED chip according to the first embodiment of the present invention and a light receiving range (R) of the light receiving element.

The control unit repeatedly flashes the LED chip 30 sequentially to emit light to the top of the motion detection switch.

By sequentially flashing the LED chip 30 in this way, it is easy to distinguish the light emitted from the four LED chip 30 in the control unit.

The light emitted from any one of the LED chip 30 is reflected by the reflector F to be detected by the light receiving element 20. The light reflected by the reflector F as the reflector F moves. The intensity changes.

As such, while the intensity of the light emitted from the LED chip 30 and reflected by the reflector F is changed, the light emitted from the remaining LED chip 30 is not reflected by the reflector F. Even if the light receiving element 20 does not detect or is reflected by the reflector F and thus detected by the light receiving element 20, the change in intensity is small, so that the controller is reflected by the reflector F to reflect the light receiving element ( According to the current generated by the light sensed by 20), ie, the change in the intensity of the operation signal, the LED chip 30 reflected by the reflector F and emitted by the light detected by the light receiving device 20 is identified and identified. Can be.

Accordingly, the controller can check the position and the horizontal and vertical movement of the reflector (F).

That is, the light receiving element 20 detects the light reflected by the reflector F and sends an operation signal to the controller, and the controller analyzes the intensity and characteristics of the operation signal based on the operation signal to detect the reflector ( The position and movement of the F) can be checked and the device equipped with the motion detection switch can be operated according to the motion of the reflector F.

In particular, as shown in FIG. 4, since the light emitted from the LED chip 30 is inclined in the opposite direction to the direction in which the light receiving element 20 is disposed by the blocking cover 60, the reflector ( Even if F) moves away from the motion detection switch, as shown in FIG. 5, the light emitting range T of each of the LED chips 30 is minimized to minimize the motion detection switch, but the distance of the reflector F can be reduced. Sensitive movement can be detected.

Accordingly, even if the motion detection switch is installed, it can be conveniently controlled at a long distance without directly contacting the small device while maintaining the size of the small device.

6 is a plan view of the integrated motion detection switch equipped with a blocking cover according to the second embodiment of the present invention, Figure 7 is a vertical cross-sectional view of the integrated motion detection switch equipped with a blocking cover according to the second embodiment of the present invention.

The integrated motion detection switch equipped with the blocking cover according to the second embodiment of the present invention will be described in detail with respect to the cover body, which is different from the cover body in comparison with the first embodiment.

6 and 7, the integrated motion detecting switch equipped with the blocking cover according to the second embodiment of the present invention includes the base 10, the light receiving device 20, the LED chip 30, and the partition 40. , The compensation element 50, the blocking cover 60, the cover body 70, and a controller (not shown).

Since the configuration other than the cover body 70 is the same as in the first embodiment, detailed description thereof will be omitted.

The cover body 70 is mounted on the base 10 to cover all of the LED chip 30, the light receiving device 20, the partition wall 40, and the blocking cover 60.

The cover 70 is made of a transparent material so that the light emitted from the LED chip 30 and the light emitted from the LED chip 30 to the outside are reflected to the reflector F.

In addition, the cover body 70 is formed with a lens portion 71 protruding convexly from the upper portion of each of the LED chip 30.

The lens unit 71 is formed such that the optical axis X is inclined in a direction opposite to the direction in which the light receiving element 20 is disposed with respect to the normal line N of the upper surface of the base 10. The emitted light is emitted in the opposite direction to the direction in which the light receiving element 20 is disposed through the lens unit 71, and the light emitted above the LED chip 30 and toward the light receiving element 20 is It is to be blocked by the blocking cover 60.

Accordingly, even when the reflector F moves away from the motion detection switch, the light emitting range of each of the LED chips 30 is minimized, thereby minimizing the motion detection switch and sensitively detecting the movement of the reflector F at a long distance. This makes it easy for the user to control the device equipped with the motion detection switch from a long distance.

The integrated motion detection switch equipped with the blocking cover of the present invention is not limited to the above-described embodiment, and may be variously modified and implemented within the allowable technical spirit of the present invention.

10: base, 20: light receiving element, 30: LED chip, 40: bulkhead, 50: compensating element, 60: blocking cover, 61: light transmitting part, 70: cover body, 71: lens part,

Claims (4)

A base;
A light receiving element mounted on the base;
A plurality of light emitting diode (LED) chips disposed on the base and spaced apart from the light receiving element to emit light in an upward direction;
Barrier ribs formed between the LED chip and the light receiving element;
A blocking cover disposed on the LED chip, the light receiving element, and the partition wall to cover a portion adjacent to the light receiving element of each of the LED chips;
A transparent cover body mounted on the base and covering all of the LED chip, the light receiving element, the partition wall, and the blocking cover;
A control unit for operating the LED chip; , ≪ / RTI >
Light emitted from the LED chip is blocked by the blocking cover is emitted in a direction opposite to the direction in which the light receiving element is disposed,
The light receiving element detects light emitted from each LED chip and reflected by the reflector and sends an operation signal to the controller.
And the control unit receives the operation signal and recognizes the motion of the reflector. The method according to claim 1,
The blocking cover is formed in the shape of a disc is disposed so that the center of the center and the center of the light receiving element,
And a radius of the blocking cover is longer than the shortest distance between the center of the light receiving element and the LED chip and shorter than the longest distance between the center of the light receiving element and the LED chip. The method according to claim 1 or 2,
The cover body is formed with a lens portion protruding convexly from the top of each LED chip,
The lens unit is formed such that the optical axis is inclined in a direction opposite to the direction in which the light receiving element is disposed with respect to the normal of the upper surface of the base, so that the light emitted from the LED chip is opposite to the direction in which the light receiving element is arranged through the lens unit. Integrated motion detection switch equipped with a blocking cover, characterized in that the emission. The method according to claim 1 or 2,
The LED chip is composed of four and arranged at intervals of 90 ° around the light receiving element,
An integrated motion detection switch equipped with a blocking cover, wherein a light transmitting part is formed at a central portion of the blocking cover to transmit light emitted from the LED chip and reflected by the reflector.

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