KR100979774B1 - Lighting apparatus using optical cable - Google Patents

Abstract

The present invention is a lighting device that can be safely used in explosion hazardous places, such as maintenance work of chemical plants handling flammable materials or coating process of ships. Specifically, the lamp box is disposed in a non-explosive safety place and accommodates a light source and a power supply for supplying power to the light source, and is sealed to prevent external air from penetrating. In addition, the optical cable is connected to the lamp box to transmit the light of the light source. In addition, the hand lamp unit is connected to the other side of the optical cable has a housing which is moved to the explosion risk location and a concave lens for scattering and irradiating the light of the light source accommodated in the housing and transmitted through the optical cable. Therefore, according to the present invention, the hand lamp unit disposed in the explosion hazardous location is connected to the optical cable and irradiated with light, so that the possibility of explosion can be completely suppressed by using no electrical energy at the explosion hazardous location. In addition, by using the optical cable having a small size and weight, the hand lamp itself is dramatically reduced in size, which makes it super lightweight and easy to carry, and the flexible characteristics of the optical cable can be easily used by field workers in any space. .

Optical cable, lamp box, convex lens, concave lens, explosion hazardous location

Description

Lighting device using optical cable {LIGHTING APPARATUS USING OPTICAL CABLE}

The present invention relates to a lighting apparatus using an optical cable that can be safely used in explosion hazardous places, such as maintenance work of chemical plants handling flammable materials or coating processes of ships.

In general, various industrial accidents occur at sites such as repair work of chemical factories handling flammable materials or coating processes of ships. In particular, when looking at the death patterns of shipbuilding industry, various accidents such as falls, stenosis and fire explosions occur. have. Due to the frequent deaths caused by fire explosions, various solutions to the fire explosions have been disclosed.

For example, a special lighting device should be used in a place where explosion danger, such as maintenance work of a chemical plant that handles flammable materials, or painting a ship. The reason is that the use of a conventional lighting device is a risk of explosion due to the possibility of explosion of flammable dust and electrical spark by radiation heat, light radiation.

As described above, a special lighting device is used in an explosion danger place, and a representative explosion-proof hand lamp may be used. The portable explosion-proof hand lamps used in Korea until now are mostly explosion-proof and safety proof explosion-proof structures among the explosion-proof application technologies of electrical equipment, and their biggest disadvantage is heavy. Many studies are being done.

Specifically, when explaining the application example of the explosion-proof technology of the conventional hand lamp, the explosion-proof and explosion proof structure is a hand lamp that is currently used the most in the country, which has the advantage that it is convenient to manufacture, while putting the ignition source in a durable container Because it must be managed, its weight is 2 ~ 3㎏ has a disadvantage.

Therefore, there is a problem that it is not easy for a worker to easily carry and move the hand lamp in the field.

In addition, in order to improve the shortcomings of the explosion proof structure and the explosion proof safety structure, an intrinsically safe explosion proof structure using a high frequency power source should be applied so as not to be ignited by an explosive gas or a vapor by an electric flame or an arc generated during a normal and an accident.

On the other hand, looking at the LED hand lamp started for the application to the intrinsically safe explosion-proof type using a light-emitting diode (LED), LED for signal has been used for a long time in the past, but in recent years aka Power LED has been developed for lighting I'm getting it.

Since the LED emits light using a semiconductor, it has a feature of having a longer life and a lower power consumption than a general light bulb, while being expensive, and causing heat and color problems.

In addition, since the capacity of the Power LED developed so far is about 5W or less, there is no problem in applying the intrinsically safe explosion-proof structure by itself, but many Power LEDs must be used for application to hand lamps.

Therefore, a heat dissipation structure must be provided to dissipate heat generated from the power LED, and since the volume and weight are increased, there is a limitation in that the light weight, which is the original purpose of the hand lamp, cannot be achieved.

Therefore, the present invention has been made to solve the above problems, the object of the present invention is to provide a lighting device that is safely used in an explosion risk location, and is easily portable by an operator by minimizing the weight of a hand lamp.

In addition, it is possible to maintain the brightness of the light source by transmitting the light of the light source without loss, and finally to provide a lighting device that can extend the range of irradiation by scattering the light when the light of the light source is irradiated to the subject. There is another purpose.

The lighting apparatus using the optical cable of the present invention for achieving the above object is disposed in a non-explosive safety place, and accommodates a light source including a halogen lamp and a power supply for supplying power to the light source, so that external air does not penetrate. Sealed lamp box; An optical cable connected to the lamp box to transmit light of the light source; And a hand lamp having a housing connected to the other side of the optical cable and moving to an explosion danger location, and having a concave lens accommodated in the housing and scattering and irradiating light of the light source transmitted through the optical cable. .

As an example, the lamp box may further include a convex lens disposed in front of the light source to collect light emitted from the light source and transmit the light to the optical cable.

As one example, the lamp box is formed with one or more air inlet to the air or inert gas is introduced into a predetermined portion, is connected to the air inlet to introduce air or inert gas into the lamp box explosive mixture material Characterized in that it further comprises a supply for preventing the included external air penetrates.

As an example, the lamp box may include at least two light sources and at least two convex lenses disposed in front of the light source, and at least two optical cables may be provided to correspond to each light source and the convex lenses. It is characterized by being connected.

As one example, the optical cable is connected to at least two by using a photo coupler is characterized in that the length is extended.

As an example, at least two optical cables may be connected by using an optical splitter to distribute light.

The lighting apparatus according to the present invention arranges the convex lens in front of the light source to collect the light emitted from the light source into one place and transmits the light to the optical cable without losing the light and maintains the brightness of the light source to the subject through the optical cable. Can be investigated.

In addition, the hand lamp unit disposed in the explosion risk location is connected to the optical cable and irradiated with light, there is an effect that can completely suppress the possibility of explosion by using no electrical energy at the explosion danger place.

 In addition, by using the optical cable having a small size and weight, the hand lamp itself is dramatically reduced in size, which makes it super lightweight and easy to carry, and the flexible characteristics of the optical cable can be easily used by field workers in any space. .

On the other hand, the hand lamp unit has the effect of being able to irradiate a large area by scattering the light emitted through the narrow inner diameter of the optical cable through the concave lens for scattering the light emitted through the optical cable.

Hereinafter, a lighting apparatus using an optical cable according to preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the following embodiments, and has a general knowledge in the art. It will be apparent to those skilled in the art that the present invention may be embodied in various other forms without departing from the spirit of the invention. In the accompanying drawings, the dimensions of each component is shown in an enlarged scale than actual for clarity of the invention. In the present invention, where one component is referred to as being formed on, above, or under another component, the one component is formed on or below the other component. It is meant to be positioned, or further components may be additionally formed on the other components. In addition, it is to be noted that the respective components are referred to as "first", "second", and / or "third", not merely to limit each component. Thus, "first", "second" and / or "third" may be used selectively or interchangeably for each component.

The present invention relates to a lighting device that can be safely carried and used by an operator in an explosion danger place, and has a feature that the operator can easily carry and use the light weight by improving the weight of the conventional hand lamp.

1 is a view for conceptually illustrating a lighting apparatus using the optical cable of the present invention, Figure 2 is a view for explaining a lighting apparatus using the optical cable of the present invention. In addition, Figure 3 is a view for explaining the handle according to the lighting device using the optical cable of the present invention, Figure 4 is a view for explaining a supply unit according to the lighting device using the optical cable of the present invention.

As shown in FIG. 1, the lighting apparatus according to the present invention is disposed at a lamp box 10 and an explosion danger place disposed at a non-explosive safety place, and is connected through the lamp box 10 and an optical cable 20. It is composed of a hand lamp unit 30 receives the light from the 100 is irradiated to the subject.

Referring to FIG. 2, the lamp box 10 receives a light source 100 for providing light. In this case, the light source 100 receives power from a power supply (not shown) to emit light, and any one of an incandescent lamp, a fluorescent lamp, a light emitting diode (LED) device, and a halogen lamp may be used.

Among them, it is preferable to use, as the light source 100, a halogen lamp having excellent brightness or a surface mounting type LED device having small brightness and low power consumption.

In addition, the convex lens 110 is accommodated in the lamp box 10 together with the light source 100. The convex lens 110 is disposed in front of the light source 100 in the lamp box 10, and collects light emitted from the light source 100. The convex lens 110 used at this time is a condensing lens commonly used in an optical machine, and is used to simply collect light.

Therefore, according to the present invention, the light of the light source 100 can be irradiated to the subject through the optical cable 20 while maintaining the brightness of the light source 100 without losing the light of the light source 100 using the convex lens 110.

The light condensed into one portion by the convex lens 110 is diverted to the outside of the lamp box 10, so that the lamp box 10 has a first portion in which the light of the convex lens 110 is condensed. Opening holes (not shown) are formed.

On the other hand, the power supply is for supplying power to the light source 100 by receiving an external power, the switching element for the ON / OFF control of the light source 100 and for a stable power supply to the light source 100 Ballast stabilizers and the like.

In addition, since the operating power that the light source can emit light is different depending on the type of the light source 100, the power supply unit and the inverter (inverter) or converter (converter) for the conversion of the external power DC-AC and AC-DC The same power converter is included.

According to the present invention, as shown in FIGS. 1 to 4, the light of the light source 100 is transmitted to the hand lamp unit 30 through an optical cable 20.

In general, the optical cable 30 is a new material that greatly contributed to dramatically increasing the transmission speed in the information technology (IT) technology, and because of the light and electric disturbance characteristics, such as endoscopes with observation cameras It is widely used in the medical field.

In particular, since the size and weight are small without being affected by external interference such as impact noise and crosstalk, the size of the hand lamp itself can be dramatically reduced by using the optical cable in the lighting device, thereby providing light weight.

Therefore, even when light is irradiated through the optical cable 20 connected to the hand lamp unit 30 disposed at an explosion danger location, the possibility of explosion can be completely suppressed by using no electrical energy at the explosion danger location. In addition, the flexible characteristics of the optical cable has a feature that can be easily used by field workers in any space.

Specifically, the optical cable 20 is connected to the first opening hole (not shown) which is a space through which the light flows out through the lamp box 10. That is, one side of the optical cable 20 is connected to a position corresponding to the convex lens 110 accommodated in the lamp box 10 to transmit the light of the light source 100 condensed from the convex lens 110. Done.

In addition, the other side of the optical cable 20 is connected to the hand lamp unit 30, and transmits the light flowing through the convex lens 110 of the lamp box 10 to be irradiated to the subject.

On the other hand, the hand lamp unit 30 is substantially transmitted from the lamp box 10 through the optical cable 20. Referring to the drawings, the hand lamp unit 30 is composed of a housing 300 and a concave lens 310 accommodated in the housing 300.

The housing 300 is connected to the other side of the optical cable 20, the light is transmitted through the optical cable 20. In addition, the concave lens 310 is accommodated in the housing 300 and scatters the light flowing into the housing 300.

Therefore, the large area can be irradiated by scattering light emitted through the narrow inner diameter of the optical cable 20.

Here, the housing 300 has a second opening hole (not shown) to the front to irradiate the light scattered by the concave lens 310 to the outside. Therefore, the light emitted from the light source is finally scattered through the concave lens 310 of the hand lamp unit 30, and the light scattered through the second opening hole is irradiated.

In this case, the hand lamp unit 30 is connected to the housing 300 connected to the other side of the optical cable 20, as shown in Figure 3, the handle portion formed to surround the other side of the optical cable 20 It further includes 40. The handle part 40 is connected to the housing 300 to which light is irradiated so that the field worker easily grips the hand lamp part 30, thereby providing convenience to the worker.

On the other hand, Figure 4 is for explaining the lamp box 10 according to the present invention, the lamp box 10 according to the present invention is sealed so as not to penetrate the outside air containing explosive mixtures or flammable gas, etc. . According to FIG. 4, the lamp box 10 has at least one air inlet 120 formed at a predetermined portion, and is connected to the air inlet 120 to supply air or an inert gas through the air inlet 120. The supply unit 60 for inflow is further included.

The supply unit 60 is to prevent the infiltration of external air containing the explosive mixture by forming an air film by introducing air or inert gas into the lamp box 10.

In other words, the inside of the lamp box 10 that the explosive mixture or combustible gas contained in the outside air is infiltrated by the pressure of air or inert gas flowing from the supply unit 60 through the air inlet 120. It can prevent.

That is, the supply unit 60 may be applied to prevent the explosion risk when the lamp box 10 is inevitably moved into the explosion danger place.

5 is a view for explaining a first embodiment of the lighting apparatus using the optical cable of the present invention, Figure 6 is a view for explaining a second embodiment of the lighting apparatus using the optical cable of the present invention.

According to the embodiments, at least two optical cables for transmitting the light of the light source may be provided so that light may be irradiated through each optical cable.

Example 1

First, referring to the first embodiment, as shown in FIG. 5, a plurality of optical cables 20, 21, 22 are connected through one lamp box 10.

Specifically, at least two light sources (not shown) including a halogen lamp and convex lenses (not shown) disposed in front of the light source are accommodated in the lamp box 10. In addition, the lamp box 10 has a first opening (not shown) is formed in each of the light source and the convex lens is located at least two or more.

That is, the first opening is formed in the number corresponding to the position corresponding to the light source provided in the lamp box.

At least two optical cables 20, 21, and 22 are also provided to correspond to the light source and the convex lens. In addition, the optical cables 20, 21, and 22 are connected to first openings respectively formed at positions corresponding to the light sources, and receive light individually from each light source.

Accordingly, at least one optical cable 20, 21, 22 is connected to the lamp box 10 as shown in the drawing, and a hand lamp unit having a housing in which concave lenses are accommodated on the other side of each optical cable 20, 21, 22, respectively. Since 30, 31, and 32 are connected to each other to irradiate light individually, a single lighting device can be used by multiple field workers.

At this time, the power supply unit for supplying power to the lamp box 10 should be configured with a circuit and a switch so as to turn on / off by supplying power to each light source individually.

Example 2

According to the present embodiment, it is possible to extend the length of the optical cable or to distribute the light by using a photocoupler 50 providing a connection of the optical cable to the optical cable or an optical splitter 70 providing the distribution of light.

In other words, the optical cable is connected to at least two or more using the photo coupler 50 to extend the length.

In addition, the optical cable may distribute the light transmitted by connecting at least two or more using the optical splitter 70.

Referring to FIG. 6, FIG. 6 (a) shows that at least two optical cables 20, 21, 22 are connected, and the photo coupler between each optical cable for connection of the optical cables 20, 21, 22. 50 is disposed, and the optical cables 20, 21, 22 are connected to one side and the other side of the photo coupler 50, respectively.

Accordingly, the optical cable can extend the total length through the photo coupler 50, so that when the work site is remote, the hand lamp unit 30 can be carried in the field as described above.

At this time, if the total length of the optical cable exceeds 30m may cause a loss, it is preferable to connect the length extension of the optical cable within a maximum of 30m in order to minimize the transmission loss of light.

On the other hand, Figure 6 (b) is for distributing the light into several branches, through a single optical splitter 70 to distribute the light to a plurality of optical cables (21, 22, 23). In other words, as shown in FIG. 6B, the light of the light source accommodated in the lamp box 10 is connected to the first optical cable 20 connected to one side of the lamp box 10.

The first optical cable 20 is connected to the optical splitter 70 for distributing light, and the light flowing through the first optical cable 20 is distributed through the optical splitter 70. In addition, at least two or more second optical cables 21, 22, and 23 may be connected to the optical splitter 70 to receive individually distributed light.

On the other hand, each of the second optical cable (21, 22, 23) is connected to each of at least two hand lamps 30, 31, 32 each having a housing in which the concave lens is accommodated, respectively, each hand lamp (30, 31, 32) ) Can be individually irradiated with light so that a single lighting device can be used by multiple field workers.

Although the present invention described above has been described in detail only with respect to the specific examples described, it will be apparent to those skilled in the art that various changes and modifications are possible within the technical scope of the present invention, and such modifications and modifications belong to the appended claims. .

1 is a view for conceptually explaining a lighting device using the optical cable of the present invention.

2 is a view for explaining a lighting device using the optical cable of the present invention.

3 is a view for explaining a handle according to the lighting apparatus using the optical cable of the present invention.

Figure 4 is a view for explaining a supply unit according to the lighting apparatus using the optical cable of the present invention.

5 is a view for explaining a first embodiment of the lighting apparatus using the optical cable of the present invention.

6 is a view for explaining a second embodiment of the lighting apparatus using the optical cable of the present invention.

*** Brief description of the reference numerals for the main parts of the drawings ***

10: lamp box 20: optical cable

30 housing 40 handle

50: photo coupler 60: supply unit

70: light splitter

100: light source 110: convex lens

120: air inlet 300: housing

310: concave lens

Claims (6)

A lamp box disposed at a non-explosion safe place and accommodating a light source including a halogen lamp and a power supply for supplying power to the light source, and closed to prevent external air from penetrating; An optical cable connected to the lamp box to transmit light of the light source; And And a hand lamp having a housing connected to the other side of the optical cable and moving to an explosion danger location, and having a concave lens accommodated in the housing and scattering and irradiating light of the light source transmitted through the optical cable. Lighting device using optical cable. The method of claim 1, wherein the lamp box And a convex lens disposed in front of the light source for condensing the light emitted from the light source and transmitting the light to the optical cable. The method of claim 1, wherein the lamp box At least one air inlet is formed so that air or an inert gas is introduced into a predetermined portion, and connected to the air inlet to introduce air or an inert gas into the lamp box to prevent external air containing an explosive mixture from penetrating. Lighting device using an optical cable, characterized in that it further comprises a supply for. The lamp box of claim 1, wherein the lamp box includes at least two convex lenses disposed in front of the light source and the light source, and at least two optical cables are provided to correspond to each light source and convex lenses. Lighting device using an optical cable, characterized in that connected to. The apparatus of claim 1, wherein the optical cable is connected to at least two by using a photo coupler to extend the length of the optical cable. The apparatus of claim 1, wherein at least two optical cables are connected by using an optical splitter to distribute light.

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