KR102472391B1 - Light source apparatus - Google Patents

Abstract

A light source device according to an embodiment of the present invention includes a light source unit, a sensing unit disposed adjacent to the light source unit, and a blocking unit disposed between the light source unit and the sensing unit, wherein the sensing unit opens a partial area of the sensing unit to the outside. and a sensing element disposed in the opening to generate a sensing signal for detecting entry and exit of an object, wherein the blocking unit includes a safety film that blocks the sensing unit and the light source unit, and the safety film includes the sensing element. It drives in response to the detection signal generated by

Description

Light source device {LIGHT SOURCE APPARATUS}

The present invention relates to a light source device. More specifically, it relates to a light source device installed on an escalator rail to perform a sterilization function.

A light emitting diode (LED) is a compound semiconductor device that converts electrical energy into light energy, and various colors can be realized by adjusting the composition ratio of the compound semiconductor.

In addition, light emitting diodes consume significantly less power than conventional light sources such as fluorescent lights or incandescent lights, and have semi-permanent lifespan, fast response speed, stability, and environment-friendly advantages. replaced by speed.

On the other hand, recent attempts to use light emitting diodes for sterilization of public objects have continued. As escalators frequently installed in subway stations or high-rise buildings are public objects frequently touched by users, the need for sterilization is very high.

Conventional escalator sterilization is carried out in a way that a service employee sprays sterilizing chemicals on the escalator rail and wipes it directly at night or early morning when users are rarely using it. Therefore, there is a problem that sterilization chemicals harmful to the human body may come out on the hands of users, and additional expenses are incurred for hiring service personnel.

In order to solve this problem, a sterilization device capable of automatically sterilizing escalator rails without borrowing human hands has been developed. Since this sterilization device is fixedly installed on the escalator rail that circulates periodically, the installation itself can sterilize the entire area of the escalator rail, and a more complete sterilization effect can be obtained than the sterilization work done directly by human hands. maintenance cost of the escalator can be saved because it does not require the employment of However, the escalator sterilization device is fixedly installed, and the escalator rail periodically cycles. As shown in FIG. , In the case of infants with small hands, the possibility of a personal injury accident is overwhelmingly higher than that of adults.

Therefore, in the escalator sterilization device fixedly installed on the escalator rail, a new technology is required to prevent personnel accidents by preventing users from sucking their hands inside even if they put their hands on the escalator rail. The present invention relates to this.

Republic of Korea Patent Publication No. 10-2006-0018333 (2006.03.02)

A technical problem to be solved by the present invention is to provide a light source device capable of preventing personal accidents by preventing users from sucking their hands into the interior even if they put their hands on the escalator rail.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

A light source device according to an embodiment of the present invention for achieving the above technical problem includes a light source unit, a detection unit disposed adjacent to the light source unit, and a blocking unit disposed between the light source unit and the detection unit, wherein the detection unit includes the detection unit. An opening for opening a partial area of the unit to the outside and a sensing element disposed in the opening to generate a sensing signal for detecting the entry and exit of an object, wherein the blocking unit includes a safety film that blocks the sensing unit and the light source unit, The safety film is driven in response to a sensing signal generated by the sensing element.

According to an embodiment, the distance from the opening to the safety membrane may be 4 cm or more and 6 cm or less.

According to an embodiment, the light source device is installed on a rail of the escalator, and the safety curtain may contact or not contact the rail of the escalator when the motor descends maximally.

According to one embodiment, the sensing element transmits the generated sensing signal to the control unit of the escalator, and the escalator may start or stop driving according to the sensing signal.

According to an embodiment, the arm of the motor maintains a state in which the safety curtain is raised to the maximum level when the detection signal generated by the detection element is not received, and when the detection signal generated by the detection element is received. , the safety curtain can be maximally lowered by rotating it clockwise or counterclockwise by up to 90°.

According to one embodiment, the safety membrane may be made of rubber.

According to one embodiment, the light source unit includes a plurality of light emitting elements, and at least one of the plurality of light emitting elements may be a UV LED.

According to one embodiment, the plurality of light emitting elements may be turned ON or OFF in response to a detection signal generated by the sensing element.

According to an embodiment, one or more of the plurality of light emitting devices may be disposed at a position where light of a predetermined wavelength does not reach the safety layer.

According to an embodiment, the light source device may further include a notification unit outputting a notification signal in response to a detection signal generated by the sensing element.

According to the present invention as described above, even if a user puts his/her hand on the escalator rail, the light source device detects this and the safety curtain descends before the hand is sucked into the inside, so there is an effect of preventing a personal accident in advance.

In addition, when the light source device detects the user's hand, the light emitting element is turned off, and when the light emitting element is a UV LED, there is an effect that adverse effects on the human body can be fundamentally blocked.

In addition, when the light source device detects the user's hand, it generates a signal for stopping the driving of the escalator, and thus has an effect of preventing additional damage.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 is a view showing a user's hand being sucked into the sterilization device.
2 is a side perspective view of a light source device according to an embodiment of the present invention.
3 is a cross-sectional perspective view of a light source device according to an embodiment of the present invention.
4 is a view showing a state in which a blocking film is installed in an opening.
5 is a diagram illustrating a normal state of a light source device according to an embodiment of the present invention.
6 is a diagram illustrating a state in which a user's hand is sucked in through an opening of a light source device according to an embodiment of the present invention.
7 is a view showing a state in which the user's hand is caught between the safety curtain and the rail of the escalator.
8 and 9 are diagrams illustrating how a notification signal is output through a notification unit.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Advantages and features of the present invention, and methods for achieving them, will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms, but only the present embodiments allow the disclosure of the present invention to be complete, and the common knowledge in the art to which the present invention belongs. It is provided to fully inform the holder of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used in a meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless explicitly specifically defined. Terms used in this specification are for describing embodiments and are not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase.

As used herein, "comprises" and/or "comprising" means that a stated component, step, operation, and/or element is the presence of one or more other components, steps, operations, and/or elements. or do not rule out additions.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

2 is a side perspective view of the light source device 100 according to an embodiment of the present invention, and FIG. 3 is a cross-sectional perspective view.

The light source device 100 according to an embodiment of the present invention includes a light source unit 10, a sensing unit 20, and a blocking unit 30, and the sensing unit 20 includes an opening 21 and a sensing element 22. For example, the blocking unit 30 may include a safety film 31 .

In addition, the light source device 100 according to an embodiment of the present invention may include not only the aforementioned components but also all other additional components required for achieving the object of the present invention. For example, the light source device 100 according to an embodiment of the present invention may further include a cover part 50 to prevent the aforementioned components from being exposed to the outside by being installed therein.

Meanwhile, the light source device 100 according to an embodiment of the present invention is installed on the rail 200 of the escalator and is most often used for sterilizing it, but is not limited thereto, and the light source device 100 Of course, by implementing some different sizes and other configurations, it is possible to perform sterilization by installing on the escalator rail 200 as well as other public objects. Hereinafter, the light source unit 10 will be described.

The light source unit 10 includes a plurality of light emitting elements 11 .

Here, at least one of the plurality of light emitting devices 11 may be a UV LED, through which the surface of the rail 200 of the escalator may be sterilized.

Here, the plurality of light emitting elements 11 may be turned ON or OFF in response to a detection signal generated by a detection element 22 to be described later. For example, when the sensing element 22 detects the user's hand, the light emitting element 11 is turned off to prevent exposure to harmful wavelengths of light on the user's hand, and the user's hand is not detected. The sterilization operation of the escalator rail 200 can be performed only in the state.

A plurality of light emitting elements 11 may be disposed at a predetermined height from the escalator rail 200, and the height and number of the arrangement may be set in consideration of the light emitting area that each light emitting element 11 can cover. have. For example, when the arrangement height is low, each light emitting element 11 will have a relatively small light emitting area, and a relatively large number of light emitting elements 11 will have to be placed, and when the arrangement height is high, each light emitting element Since (11) will have a relatively large light emitting area, a relatively small number of light emitting elements 11 may be disposed. However, the arrangement height of the plurality of light emitting elements 11 is about 3 cm or more and 10 cm or less from the escalator rail 200, and the number is preferably 4 or more and 10 or less in preventing damage to the escalator rail 200. Furthermore, although FIG. 3 shows that the plurality of light emitting elements 11 are arranged in two stages within the light source unit 10, it is not limited thereto and may be arranged in one or three stages as needed. Of course.

Matters to be considered in arranging the plurality of light emitting devices 11 in the light source unit 10 include not only the above-described arrangement height and number, but also the arrangement position. Specifically, the plurality of light emitting elements 11 should be disposed at a position where light of a predetermined wavelength does not reach the safety film 31 to be described later, and at least one of the plurality of light emitting elements 11 is a UV LED. This is because the safety film 31 may be damaged in this case. Referring to FIG. 2 as an example, when at least one of the plurality of light emitting elements 11 is a UV LED, it is placed at the second stage, which is a position as far away from the safety film 31 as possible, to prevent damage to the safety film 31. It can be prevented.

Meanwhile, any one or more of the plurality of light emitting devices 11 may be UV LEDs, and the other light emitting devices 11 are implemented as colored LEDs different from those of the other light emitting devices 11 to achieve the light source device 100 according to an embodiment of the present invention. When driving, it is possible to implement an aesthetic effect of allowing soft light to leak out.

The sensing unit 20 is disposed adjacent to the light source unit 10 .

Here, the adjacently disposed means disposed in front of the light source unit 10. Referring to FIGS. 2 and 3, it can be seen that the sensing unit 20 is disposed in front of the light source unit 10. Here, a case where the sensing unit 20 is disposed on the rear side of the light source unit 10 may be considered, but since the sensing unit 20 serves to detect objects entering and exiting through the opening 21, one embodiment of the present invention is performed. It should be disposed at both ends of the light source device 100 according to the example, and there will be no room for consideration when the sensing unit 20 is disposed on the rear side of the light source unit 10.

On the other hand, the sensing unit 20 includes an opening 21 opening a partial area of the sensing unit 20 to the outside and a sensing element 22 disposed in the opening 21 to generate a sensing signal for detecting the entry and exit of an object. can include

Here, as mentioned above, the opening 21 can be a passage through which objects can come in and out, and a case where the opening 21 is not separately provided can be considered, but the light source device 100 according to an embodiment of the present invention If ) is installed on the escalator rail 200 without including the opening 21, circulation of the escalator rail 200 may be rather hindered. When you get on the actual escalator and put your hand on the rail 200, you can feel that the rail 200 of the escalator does not circulate smoothly, but circulates unevenly as if passing through some irregularities, and the rail 200 of the escalator is only for a moment. Even so, it rises to a certain height. In this case, if the light source device 100 is installed without including the opening 21, it can cover a predetermined elevated height, and comes into direct contact with the light source device 100, thereby obstructing the circulation of the escalator rail 200. may be damaged, and the light source device 100 may also be damaged. Therefore, the opening 21 can be regarded as a kind of essential component.

Since the opening 21 opens a partial area of the sensing unit 20 to the outside, it may be implemented in a form spaced apart from the rail 200 of the escalator at a predetermined height. Here, the predetermined height may be 2 cm or more and 5 cm or less in consideration of the height at which the escalator rail 200 rises. In this case, the height of the opening 21 may be such that a user's hand can be sucked in, and a solution to this will be described later in the description of the safety membrane 31.

On the other hand, even if the user's hand is sucked into the opening 21, the safety curtain 31, which will be described later, can be lowered to prevent a personnel accident, but a secondary auxiliary means for preventing a personnel accident can be implemented in the opening 21 can For example, as shown in FIG. 4 , when a blocking film 24 such as a tent, vertical, blind, etc. made of rubber material is installed in the opening 21, the user feels that his/her hand touches the tent from the side of the light source device. Before being sucked into (100), the hand can be taken out, and since the inside of the light source device 100 can be covered, the effect of killing two birds with one stone can be obtained.

The sensing element 22 is disposed in the opening 21 to generate a sensing signal for sensing the entry and exit of an object.

Here, the object means all types of objects irrespective of the type, and is a concept in a broad sense including all hands of users using the escalator.

In this case, the sensing element 22 may be implemented as an infrared sensor that detects the entry/exit of an object by emitting infrared rays. In addition, any known sensor may be used, but at least it should be a sensor capable of detecting the entry/exit of an object. will be.

Referring to FIG. 3, it can be seen that the sensing element 22 is installed on a printed circuit board 23, and the sensing signal generated by the sensing element 22 by the printed circuit board 23 may be transmitted to the motor 32 to be described later.

On the other hand, it is preferable that the sensing element 22 be disposed as close as possible to the opening 21. As it is disposed as close as possible to the opening 21, the entry and exit of an object can be detected more quickly than when it is disposed farther away. because it can However, this will be different depending on the size and placement position of the printed circuit board 23 .

The blocking unit 30 is disposed between the light source unit 10 and the sensing unit 20 .

2, it can be seen that the blocking unit 30 is disposed between the light source unit 10 on the right side and the sensing unit 20 on the left side, and the blocking unit 30 is the light source unit 10 and the sensing unit ( 20) may include a safety film 31 blocking it.

Here, the safety film 31 is a configuration capable of preventing entry and exit of objects from the opening 21, more specifically, the escalator user's hand from being sucked into the light source device 100, 4 cm or more, 6 cm from the opening 21. It is preferable to install at the following distance, and in this case, it is possible to prevent a user's hand sucked in through the opening 21 from entering a deeper area of the light source device 100.

On the other hand, the safety film 31 is driven in response to the detection signal generated by the sensing element 22, and more specifically, repeats up and down movement by the motor 32. 5 is a normal state of the light source device 100 according to an embodiment of the present invention, and FIG. 6 is a light source device 100 according to an embodiment of the present invention when a user's hand is sucked through the opening 21 As shown in the state of, when the user's hand is detected by the sensing element 22 and a sensing signal is generated, the motor 32 connected thereto is driven by the printed circuit board 23, and accordingly the motor ( The arm 33 of 32) causes the safety membrane 31 to move up and down.

More specifically, when receiving the detection signal generated by the detection element 22, the arm 33 of the motor 32 rotates clockwise or counterclockwise by up to 90 ° to lower the safety curtain 31 to the maximum, , When the detection signal generated by the detection element 22 is not received, the state in which the safety curtain 31 is raised to the maximum is maintained. Here, the maximum of 90° is an exemplary value, and may vary depending on the location where the blocking unit 30, more specifically, the safety membrane 31 is disposed. In addition, when the safety film 31 descends to the maximum, the safety film 31 may contact or not contact the rail 200 of the escalator. Here, when the safety film 31 is in contact with the rail 200 of the escalator, there is no gap between the safety film 31 and the rail 200 of the escalator. Although it does not occur, problems may arise in the operation of the escalator due to contact. In addition, when the safety film 31 does not come into contact with the escalator rail 200, a gap is formed between the safety film 31 and the escalator rail 200, which will be described later. may occur, but this can be solved by setting the gap very finely, and there is no problem in driving the escalator due to non-contact. Therefore, even when the safety film 31 is maximally descended, it is desirable to make it non-contact with the escalator rail 200, but it is not limited thereto.

The safety curtain 31, which has descended to the maximum by receiving the detection signal generated by the detection element 22, then descends by receiving the detection signal for this when the detection element 22 no longer detects the user's hand. rises as much as That is, the vertical movement is repeated in response to the detection signal.

Meanwhile, FIG. 6 shows a case in which a user's hand is sucked in through the opening 21, but the hand does not touch the safety membrane 31 and the safety membrane 31 has already descended to the maximum. However, when the hand is quickly sucked in, as shown in FIG. 7 , the user's hand may be caught between the safety curtain 31 and the escalator rail 200 . In this case, the safety membrane 31 will continue to apply force toward the user's hand in order to descend to the maximum descending position, and the user's hand can be crushed accordingly. It can be implemented with a material to prevent the user's hand from being crushed.

So far, the light source device 100 according to an embodiment of the present invention has been described. According to the present invention, even if a user puts his/her hand on the escalator rail 200, the light source device 100 detects this and the safety curtain 31 descends before the hand is sucked into the interior, thereby preventing a personal accident in advance. When the light source device 100 detects the user's hand, the light emitting element 11 is turned off, and if the light emitting element is a UV LED, adverse effects on the human body can be fundamentally blocked.

In addition, in the light source device 100 according to an embodiment of the present invention, a mode in which the blocking film 31 is maximally lowered or the escalator is stopped by the sensing element 22 generating a sensing signal is selected as a mode. It is possible to promote the convenience of the escalator manager, and of course, the two functions can be selected at the same time.

On the other hand, as described above, when the hand of the user is caught between the safety curtain 31 and the rail 200 of the escalator, and the rail 200 of the escalator continues to drive, the hand penetrates deeper into the light source device 100. There is a possibility that the damage may be sucked into the area, and in this case, the detection signal generated by the detection element 22 is transmitted to the control unit (not shown) of the escalator to start or stop the operation of the escalator according to the detection signal. expansion can be prevented. That is, when the sensing element 22 detects the user's hand, the escalator stops driving, and the escalator's driving stop must be made as quickly as possible from the time the user's hand is detected to prevent damage from expanding, Transmission of the detection signal should be performed through a communication means having a high signal transmission speed.

Furthermore, the light source device 100 according to an embodiment of the present invention may further include a notification unit 40 outputting a notification signal in response to a detection signal generated by the sensing element 22, The type may be visual, auditory, and the like. 8 shows a state in which a notification signal in the form of a voice is output through a notification unit 40 in the form of a speaker, and FIG. Through this, other escalator users will be able to request rescue to 119 or other rescue agencies by recognizing the occurrence of a personnel accident.

Meanwhile, a plurality of light emitting elements 22 according to the present invention described above may be arrayed on a substrate, and optical members such as a light guide plate, a prism sheet, a diffusion sheet, and the like may be disposed on a light path of a light source device.

In addition, it may be implemented as a light source device 100 including the light emitting element 22 according to the present invention.

In addition, the light source device 100 processes or converts a light source module including a substrate and the light emitting device 22 according to the present invention, a radiator for dissipating heat from the light source module, and an electrical signal received from the outside to form a light source module. It may include a power supply unit that provides. For example, the light source device 100 may include a lamp, a head lamp, or a street light. In addition, the light source device according to the embodiment may be variously applied to products requiring output light.

In addition, the light source device 100 includes a bottom cover, a reflector disposed on the bottom cover, a light emitting module including a semiconductor device emitting light, and a light emitting module disposed in front of the reflector and guiding light emitted from the light emitting module forward. A light guide plate, an optical sheet including prism sheets disposed in front of the light guide plate, a display panel disposed in front of the optical sheet, an image signal output circuit connected to the display panel and supplying image signals to the display panel, A color filter disposed on the front side may be included. Here, the bottom cover, the reflector, the light emitting module, the light guide plate, and the optical sheet may form a backlight unit.

As another example of the light source device 100, the headlamp includes a light emitting module including a light emitting element 11 disposed on a substrate, a reflector for reflecting light emitted from the light emitting module in a predetermined direction, for example, forward, It may include a lens that refracts light reflected by the reflector forward, and a shade that blocks or reflects a part of the light reflected by the reflector and directed to the lens to form a light distribution pattern desired by a designer.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features of the present invention. you will be able to understand Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

100: light source device
10: light source
20: sensing unit
21: opening
22: sensing element
23: printed circuit board
24: barrier
30: blocking part
31: safety curtain
32: motor
33: motor arm
40: notification unit
50: cover part
200: escalator rail

Claims (10)

light source;
a sensing unit disposed adjacent to the light source unit; and
a blocking unit disposed between the light source unit and the sensing unit;
Including,
the sensor,
an opening opening a partial region of the sensing unit to the outside; and
a sensing element disposed in the opening to generate a sensing signal for sensing entry and exit of an object;
including,
The blocking part,
a safety film disposed between the sensing unit and the light source unit; and
a motor for moving the safety film in a vertical direction;
Including,
the safety barrier,
Driven up and down in response to the sensing signal generated by the sensing element,
light source device. delete According to claim 1,
The light source device,
It is installed on the rail of the escalator,
the safety barrier,
When descending to the maximum by the motor, contact or non-contact with the rail of the escalator,
The sensing element is
Transmitting the generated detection signal to the control unit of the escalator,
According to the detection signal, the escalator starts or stops driving. delete According to claim 1,
The arm of the motor,
When the detection signal generated by the detection element is not received, maintaining the state in which the safety curtain is raised to the maximum level;
When the detection signal generated by the detection element is received, the safety membrane is maximally lowered by rotating up to 90 ° clockwise or counterclockwise.
light source device. delete According to claim 1,
The light source unit includes a plurality of light emitting elements,
At least one of the plurality of light emitting elements is a UV LED,
The plurality of light emitting elements,
A light source device that is turned ON or OFF in response to a detection signal generated by the detection element. delete According to claim 7,
Any one or more of the plurality of light emitting elements,
Arranged at a position where light of a predetermined wavelength does not reach the safety film,
light source device. delete

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