KR20130055466A

KR20130055466A - Led lighting apparatus of fluorescent lamp including a function of light projecting angle control

Info

Publication number: KR20130055466A
Application number: KR1020110121227A
Authority: KR
Inventors: 이승국; 이재욱; 이인호; 김동환
Original assignee: 한솔라이팅 (주)
Priority date: 2011-11-18
Filing date: 2011-11-18
Publication date: 2013-05-28

Abstract

The present invention relates to an LED lighting apparatus, and in particular, the present invention relates to a plurality of LEDs arranged in a row and a light emitting unit having a predetermined length for irradiating light in a predetermined direction for the supplied power, at both ends of the light emitting unit in the longitudinal direction of the light emitting unit. A first connector cap disposed at both ends of the light emitting part and connected to an external power source, wherein the connection part is connected to the light emitting part and has a first gear formed therein, and is inserted into the external power source; Disclosed is a configuration of a fluorescent lamp type LED lighting device having a light irradiation angle adjustment function coupled to the first connector cap, but including a second connector cap including a second gear coupled to the first gear.

Description

LED lighting apparatus of fluorescent lamp including a function of Light Projecting Angle control}

The present invention relates to a fluorescent lamp LED lighting device, and more particularly to a fluorescent lamp LED lighting device having a light irradiation angle adjustment function.

Compared to incandescent bulbs, there is less glare, high luminous efficiency, and long life, so one of the lighting fixtures used is fluorescent lamp. This fluorescent lamp uses light from gas or gas discharge as a light source. A small amount of mercury vapor and argon gas for easy discharge are sealed in a vacuum glass tube, and then electrodes are attached to both ends. Such a fluorescent lamp is a kind of mercury discharge tube having negative resistance characteristics. When the power supply is only supplied, the fluorescent lamp is provided with a ballast to induce lighting and stably supply power after the lighting. That is, a ballast was installed to initially apply a high discharge start voltage required for lighting a fluorescent lamp, and then a stable voltage and a current were supplied after lighting.

As described above, the conventional fluorescent lamp is configured by using a vacuum glass tube, so that the manufacturing of the vacuum glass tube should be sufficiently sealed, and thus, there are many difficulties in manufacturing, and there is a case where it does not turn on unexpectedly and flickers when the life is near. There was. In addition, since the light generated by the conventional fluorescent lamp contains ultraviolet light that fades or deteriorates, there is a problem of deteriorating food when used in a refrigerator or the like. In addition, if the frequent switching operation is made, the life is drastically shortened, there is a problem that requires a lot of power consumption. In addition, since the conventional fluorescent lamp emits light in all directions, there is a problem that the light efficiency is inefficient due to the light output to the part that does not require illumination, and the light efficiency is lowered.

On the other hand, LED (Light Emitting Diode), which is made on the principle that the change of current can be used as a change in intensity of light, has the advantage that it can be used for a long time with a stable lighting effect and a life of about 40000 hours. However, such LED lighting is widely used for advertisements and stages, but is not properly used in homes or general buildings. As a reason, the conventional LED lighting apparatus has a disadvantage in that it is not easy to process heat generated by the LED lighting and is difficult to use as an indoor lighting device due to its unique optical straightness.

In order to solve the heat dissipation problem, the conventional fluorescent type LED lighting device is provided in the form of disposing a heat dissipation structure on the back of the LED module arranged in a line. However, the conventional fluorescent type LED lighting device having such a structure has the highest illuminance of the bottom surface perpendicular to the LED lamp, and the illuminance is lowered in proportion to the distance from the radial direction. In particular, the conventional fluorescent type LED lighting device is not equipped with a means for adjusting the irradiation angle of the LED has no situation that can provide a higher illuminance at a specific position. This problem has a disadvantage in that the utilization of the fluorescent type LED lighting device that does not adjust the light irradiation angle when the illumination of a higher illumination in a specific location, such as a reading room or a high visibility.

Therefore, in order to solve the above problems, the present invention provides a fluorescent lamp type LED lighting device having a light irradiation angle adjustment function that supports the light irradiation angle can be adjusted according to the user operation and to maintain a solid angle even after the light irradiation angle adjustment. Is in.

In order to achieve the above object, the present invention is a light emitting unit having a predetermined length for irradiating light in a predetermined direction for a plurality of LEDs and a power supply arranged in a line, disposed at both ends of the light emitting portion in the longitudinal direction A first connector cap which wraps both ends of the light emitting part and is connected to an external power source, wherein the connecting part is connected to the light emitting part and has a first gear formed therein; Disclosed is a configuration of a fluorescent lamp type LED lighting device having a light irradiation angle adjustment function that includes a second connector cap coupled to a connector cap but including a second gear coupled to the first gear.

The first connector cap may include a module connection case surrounding an outer circumferential surface of one end of the light emitting unit, a gear support extending from one surface of the module connection case, the first gear formed on the gear support, the first gear and the It may include a fastening groove provided on the outer peripheral surface between the gear support, and a fixing ring inserted into the fastening groove.

The second connector cap may further include a connector pin inserted into the external power source, a pin connection case surrounding the connector pin, a second gear formed inside the pin connection case and engaged with the first gear, and inside the pin connection case. It may include a fastening protrusion is formed and fitted to the fixing ring.

The fluorescent LED lighting device may further include a cable configured to connect the connector pin and the control box provided in the light emitting part and constitute a rotary structure.

In addition, the first gear may be formed along the edge of the end of the gear support, the second gear may be formed around the inner wall of the pin connection case.

The first connector cap may further include an insertion protrusion protruding from the inside of the module connection case in the direction of inserting the light emitting part to be inserted into and fixed to the heat radiation structure of the light emitting module of the light emitting part.

The light emitting unit is a circuit board mounted so that LED modules arranged side by side to irradiate light in one direction, a heat dissipation structure is mounted on the circuit board and radiates heat generated by the LED module, the LED module is coupled to one side of the heat dissipation structure It may include a cover housing surrounding the mounted circuit board.

According to the present invention, the fluorescent type LED lighting device having a light irradiation angle adjusting function of the present invention supports the light can be irradiated at a desired radiation angle of the user.

In addition, the present invention can reduce the production cost by supporting a light irradiation angle adjustment function by adopting a simpler structure.

1 is a view schematically showing a part of the exterior of a fluorescent LED lighting device according to an embodiment of the present invention.
2 is an exploded perspective view of the fluorescent LED lighting device of the present invention.
Figure 3 is a perspective view of the structure of the first connector cap according to an embodiment of the present invention from another side.
4 is a front view of a second connector cap according to an embodiment of the present invention.
5 is a perspective view of a second connector cap according to an embodiment of the present invention.
6 is a view showing a state in which the second connector cap is separated and coupled to the first connector cap according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, only parts necessary for understanding the operation according to the embodiment of the present invention will be described, it should be noted that the description of other parts will be omitted so as not to distract from the gist of the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor is not limited to the meaning of the terms in order to describe his invention in the best way. It should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It is to be understood that equivalents and modifications are possible.

1 is a view schematically showing a part of the exterior of a fluorescent LED lighting device 10 according to an embodiment of the present invention, Figure 2 is an exploded perspective view of the fluorescent LED lighting device 10 of FIG.

1 and 2, the fluorescent type LED lighting device 10 of the present invention includes an LED module 212 and surrounds both ends of the light emitting unit 200 and the light emitting unit 200 to emit light. It may include a connection portion 100 is inserted into the socket for supplying power. That is, one connection part 100 may be provided at each end of each side of the light emitting part 200.

Fluorescent lamp type LED lighting device 10 of the present invention having the configuration as described above is made in the form of gears corresponding to the two connector caps (110, 120) constituting the connection portion 100 mutually light emitting unit 200 at a predetermined angle Can be adjusted to Accordingly, the fluorescent type LED lighting device 10 of the present invention can support the direction of the light emitting unit 200 at an angle desired by the user.

The light emitting unit 200 includes a circuit board 211 including an LED module 212 that emits light by power supplied from the connection unit 100, and a heat dissipation structure provided to radiate heat generated from the LED module 212. It may include a light emitting module 210 including a 217, and a cover housing 220 coupled to the heat dissipation structure 217 and provided to surround the LED module 212.

The circuit board 211 supports supplying the power transferred through the connector pin 129 to the LED module 212. The circuit board 211 may dissipate heat generated in this process. That is, the circuit board 211 collects heat generated while transferring power supplied from the connector pin 129 to the LED module 212 and heat generated while the LED module 212 emits light to radiate heat. May be delivered to structure 217. To this end, the circuit board 211 may be made of a metal material. One side of the circuit board 211 may be provided with a control box 213 for controlling the LED module 212 power. The control box 213 may receive power through a cable that may be electrically connected to the connector pin 129, and transmit the supplied power to the LED module 212. The circuit board 211 may further include a connection circuit connecting the respective LEDs and the control box 213 to supply the power of the control box 213 to the LED module 212.

On the other hand, the circuit board 211 may be disposed to face the flat plate 215 provided in a rail shape on the heat dissipation structure 217. Accordingly, the circuit board 211 may be provided to have a width similar to the width of the flat plate 215 of the heat dissipation structure 217. In addition, the circuit board 211 may be seated and fixed using a double-sided tape made of metal in the process of being seated on the flat plate 215. In this case, the width of the circuit board 211 may be smaller than the width of the flat plate portion 215. The light emitting unit 200 of the present invention may be inserted into and fixed to the connection unit 100, and the length of the circuit board 211 may be provided to match the end of the heat dissipation structure 217.

In addition, a reflection plate may be further provided at the bottom of the circuit board 211, that is, the heat dissipation structure 217 in which the LED module 212 is disposed, to maximize the reflection effect. The reflecting plate may be distributed over the entire bottom surface except for the region where the LED modules 212 are provided on the bottom surface of the circuit board 211, and the light generated by the LED module 212 may be viewed through the cover housing 220. It can support high brightness and dimming.

The LED module 212, which is provided with a plurality of LEDs on one surface of the circuit board 211, is formed to protrude to a predetermined height toward the dimming surface direction of the cover housing 220, and a lower surface of the circuit board 211 is made of a metal material. In contact with each other, the circuit board 211 is controlled, for example, on / off to brightness adjustment, and only a selective LED among a plurality of LEDs is controlled. Since LEDs included in the LED module 212 are located on the circuit board 211, heat generated from the LEDs may be directly radiated through the circuit board 211, and additionally, a heat radiating structure 217 may be used. It can radiate heat through.

The heat dissipation structure 217 may be manufactured in the form of a semi-cylindrical pipe having an empty center. The circuit board 211 in which the LED module 212 is mounted may be disposed on the flat plate 215 of the heat dissipation structure 217. The heat dissipation structure 217 may include a rectangular flat plate portion 215 facing the circuit board 211 and a bent portion 216 formed on the opposite side of the flat plate portion 215.

To this end, the heat dissipation structure 217 extends in the direction in which the cover housing 220 is connected at both horizontal sides of the rectangular flat plate portion 215 and the flat plate portion 215 facing the circuit board 211 to cover the cover housing ( The first housing connection part and the second housing connection parts 218 and 219 are respectively formed in a ring shape so that the 220 is connected.

The first housing connecting portion 218 is a first rail extending perpendicular to the front surface of the flat plate portion 215 at a position pulled by a predetermined width from the lower horizontal edge of the flat plate portion 215 toward the center of the flat plate portion 215. At the end of the first rail may include a second rail extending in the outward direction relative to the center of the flat plate portion 215 by the pulled width. The first housing connection part 218 may be provided in a "-" shape based on the front surface of the flat plate part 215. The second housing connector 219 may also be provided in a similar shape to the first housing connector 218. However, the second housing connector 219 may be disposed in a direction opposite to the direction of the first housing connector 218. Meanwhile, the second rail ends of the first housing connecting portion 218 and the second housing connecting portions 219 may be provided in a ring shape for stable connection and support of the cover housing 220.

On the other hand, the heat dissipation structure 217 may include a bent portion 216 formed in the rear portion direction of the flat plate portion 215. The curved portions 216 may be provided in a round roof shape when the curved portions 216 have a predetermined curvature in the direction of the rear portion at both edges of the flat plate portion 215. The inside of the bent portion () is empty, and thus may be provided in a hollow semi-cylindrical shape. At this time, the inside of the bent portion 216 may be flattened. The outer side of the bend 216 may be wrinkled to efficiently dissipate more heat.

The cover housing 220 is formed to have a predetermined width and length, and a cross section thereof may be provided in a ring shape having one side opened. The cover housing 220 may include a curved circular plate portion 221 having a predetermined width and length, and engaging portions 222 formed at the open end of the circular plate portion 221. That is, the open ring-shaped circular plate portion 221 may be provided with two ends, respectively, and the engaging portions 222 may be formed at each of the two ends.

The circular plate member 221 serves to protect the LED module 212 and the circuit board 211 arranged in a line on the circuit board 211, respectively. The circular plate portion 221 may be formed of a transparent material so that light of the LED module 212 disposed on the circuit board 211 may be dimmed to the outside. In particular, the circular plate portion 221 may be formed of a glass material, a transparent PC material or a transparent acrylic material. In addition, the inner surface of the circular plate portion 221 can be manufactured to be formed ruggedly according to a predetermined rule. Accordingly, the cover housing 220 may cause diffuse reflection when the light beam by the LED module 212 arrives to promote light diffusion so that the light beam may be diffused in a wider width and angle.

The locking portions 222 may be provided to protrude inwardly from a horizontal edge end of the circular plate member 221 by a predetermined height. The locking portions 222 are fastened to the first housing connecting portion 218 and the second housing connecting portion 219 formed in the heat dissipation structure 217, respectively.

Meanwhile, when the cover housing 220 is fastened to the heat dissipation structure 217, the cross section may have a circular shape, and the diameter of the circular shape is similar to or smaller than the diameter of the first connector cap 110 constituting the connection part 100. Can be formed. The light emitting unit 200 coupled with the smaller cover housing 220 and the light emitting module 210 may be inserted into and fixed inside the first connector cap 110.

The connection part 100 may include a first connector cap 110 fastened to the light emitting part 200 and a second connector cap 120 connected to the first connector cap 110 and inserted into a socket (not shown). have.

Herein, the first connector cap 110 will be described in more detail with reference to FIG. 3. The first connector cap 110 includes a module connection case 111 and a module connection case in which one end of the light emitting part 200 is inserted and fixed. A gear support 112 extending from the front surface of the 111, a fastening groove 113 formed on the gear support 112, a first gear 114 successively formed on the fastening groove 113, and a fastening groove 113. It may be configured to include a fixing ring 116 coupled to).

The module connection case 111 may be formed larger than the circular cross-sectional diameter in the state in which the cover housing 220 and the light emitting module 210 are coupled so that one end of the light emitting unit 200 may be inserted. In addition, the module connection case 111 may be formed to have a predetermined width so that one end of the light emitting unit 200 can be sufficiently inserted and fixed. The module connection case 111 surrounds the outer peripheral surface of the end of the light emitting unit 200 to which the cover housing 220 and the light emitting module 210 are coupled.

When the cover housing 220 and the light emitting module 210 are inserted in a combined state, a specific structure may be provided inside the module connection case 111 so that the corresponding components may be firmly bound. That is, after the cover housing 220 and the light emitting module 210 are inserted into the module connection case 111, the first connector cap 110 may rotate at a predetermined angle according to a worker's work method. In this case, when the first connector cap 110 is rotated at a predetermined angle, the light emitting module 210 and the cover housing 220 are also rotated according to the corresponding operation, so that the light irradiation angle adjustment function is supported. As a result, the light emitting module 210 and the cover housing 220 are more firmly bound to the inside of the module connection case 111, so that the corresponding structures may be supported while the light irradiation angle is adjusted.

To this end, an insertion protrusion 115 corresponding to the shape of the bent portion 216 of which the center is empty may be provided inside the module connection case 111. The insertion protrusion 115 is inserted into the bent portion 216 of the light emitting module 210 in the process of inserting the light emitting module 210 and the cover housing 220 into the module connection case 111 to form a first connector cap ( The light emitting module 210 may be supported to rotate together in the axial direction while the 110 rotates about the axis. The insertion protrusion 115 may be provided in a semi-cylindrical shape corresponding to the hollow shape of the hollow semi-cylindrical shape of the bent portion 216. The shape of the insertion protrusion corresponds to the hollow shape of the bent portion 216 and is not limited to the semi-cylindrical shape. That is, the insertion protrusion of the present invention fixes the bent portion 216 to fix the light emitting module 210 with respect to the rotation direction together with the first connector cap 110.

The gear support part 112 extends perpendicularly to the corresponding surface on the opposite surface of the module connection case 111 into which the light emitting part 200 is inserted. Accordingly, the gear support 112 may be provided in a band shape having a predetermined thickness. The gear support 112 has a diameter smaller than the diameter of the module connection case 111 and may be formed by a predetermined height.

The fastening groove 113 is disposed on the gear support 112. The fastening groove 113 is substantially formed on one side of the gear support 112 and may be provided as a strip-shaped groove on the edge of the circular columnar gear support 112. The fastening groove 113 may be provided on an outer circumferential surface between the first gear 114 and the gear support part 112.

The fixing ring 116 is coupled to the fastening groove 113. The role of the fixing ring 116 is to the fastening protrusion 123 formed in the second connector cap 120 while the first gear 114 is engaged with the second gear 124 formed in the second connector cap 120. It plays a role of fitting. Accordingly, the fixing ring 116 supports the first connector cap 110 and the second connector cap 120 not to be easily separated and provide airtightness.

The first gear 114 may be provided so as to be connected to the fastening groove 113. The first gear 114 is formed along the edge of the end of the gear support 112, it may be provided in a form including a circular pillar, and the concave-convex provided on the circular pillar. The diameter of the circular column may have a diameter similar to the diameter of the gear support 112. The number of irregularities and the shape of the irregularities are related to the adjustment angle step of the light emitting unit 200. Accordingly, the number of irregularities formed on the first gear 114 may be determined according to the environment in which the fluorescent type LED lighting device 10 of the present invention is applied. That is, at least two hills and valleys may be provided in the unevenness. In the illustrated figure shows the unevenness having two or more peaks and valleys for adjusting the various light irradiation angles. The first gear 114 may be made of a non-conductive material, for example, plastic or reinforced plastic.

4 is a front view of the inside of the second connector cap 120 according to an embodiment of the present invention, and FIG. 5 is a perspective view of the second connector cap 120 according to the embodiment of the present invention. 6 is a view showing a state in which the second connector cap 120 is separated and coupled to the first connector cap 110 according to an embodiment of the present invention.

4 to 6, the second connector cap 120 of the present invention includes a connector pin 129, a pin connection case 121, a second gear 124, and a fastening protrusion 123. Can be.

Herein, the connector pin 129 is inserted into a socket (not shown) and receives power from a power supply connected to the socket and transmits the power to the light emitting unit 200. The connector pin 129 may be composed of two pins as shown. The connector pin 129 may be formed of a conductive material for power supply.

The pin connection case 121 includes two through holes into which the connector pin 129 is inserted and fixed, and a second gear 124 and a fastening protrusion 123 are formed inside the pin connection case 121. The pin connection case 121 may be formed of a non-conductive material, for example, a plastic material. The entire diameter of the pin connection case 121 may be formed to the same diameter as the diameter of the module connection case 111 of the first connector cap 110.

The second gear 124 is formed on the inner wall of the pin connection case 121 and may be provided in a concave-convex shape corresponding to the first gear 114. That is, when two peaks and valleys are provided in the first gear 114, the second gear 124 may also be manufactured in the form of peaks and valleys corresponding thereto. In particular, the peak of the first gear 114 may be provided in a shape corresponding to each other in a configuration that is inserted into the valley of the second gear 124. The diameter of the second gear 124 may be the same as or similar to the diameter of the first gear 114, and may be formed larger if necessary. For example, the diameter of the second gear 124 May have a diameter similar to that of the module connection case 111 of the first connector cap 110.

The fastening protrusion 123 is provided in the form of a strip on the inner wall of the pin connection case 121 and may be formed to protrude by a predetermined height from the inner wall. The fastening protrusion 123 may be formed at a distance spaced apart from the second gear 124 by a predetermined interval. The fastening protrusion 123 may be provided at a position spaced apart by a predetermined width from the end of the pin connection case 121 to the inside. In this case, the width from the forming point of the fastening protrusion 123 to the end of the pin connection case 121 may be formed to have the same width as that of the gear support part 112. Substantially, the fastening protrusion 123 is fitted and fixed to the fixing ring 116 of the first gear 114. If a predetermined force is applied after the fastening protrusion 123 is fitted to the fixing ring 116, the second connector cap 120 may be separated from the first connector cap 110.

Meanwhile, in the above description, the fixing ring 116 is installed in the first gear 114 and the fastening protrusion 123 is provided in the second gear 124. However, the present invention is not limited thereto. That is, the fastening protrusion may be provided in the first gear 114, and the fastening groove and the fixing ring corresponding to the fastening protrusion may be provided in the second gear 124. In addition, in the above description, the fixing ring 116 and the fastening protrusion 123 have been described as being provided in an annular band shape, but are not limited thereto.

Although not shown, a cable connecting the connector pin 129 and the control box 213 of the light emitting unit 200 may be provided through the second connector cap 120 and the first connector cap 110. The cable may be provided as a rigid fastening structure so that the connection with the control box 213 is not easily separated even when the second connector cap 120 is rotated by a predetermined angle or more. For example, the cable may include a rotatable structure that is rotatable in the same direction while the second connector cap 120 is rotating. The rotatable structure may be provided in such a way that the connector pins 129 and the control box 213 may be electrically connected while being rotated together in the rotation direction when the second connector cap 120 or the first connector cap 110 is rotated. Can be. For example, the rotatable structure may be connected to a hook provided on a cable side connected to the connector pin 129 and a control box 213, and a hook provided on a cable side connected to the hook on the connector pin 129 side and any one of the hooks. Supporting the ring in one may include a support provided in a rotatable form. Such a rotatable structure is configured to prevent the twisting of the cable more than a certain angle even if the cable rotates, and thus, various types of structures may be applied according to various forms of rotatable supports.

Meanwhile, although the shape of the first gear 114 and the second gear 124 according to the embodiment of the present invention is illustrated as a gear having a hill and a valley in the form of a square wave, the present invention is not limited thereto. That is, the first gear 114 and the second gear 124 of the present invention can be configured in the form of a gear having a hill and a valley in the form of a triangular wave, respectively. In addition, the first gear 114 and the second gear 124 of the present invention may be configured in the form having a semi-circular peaks and valleys.

As described above, the fluorescent lamp type LED lighting device 10 having a light irradiation angle adjusting function according to an embodiment of the present invention is provided in a form in which the first connector cap 110 and the second connector cap 120 are detachable. By allowing the first connector cap 110 to rotate at a predetermined angle, the light irradiation angle of the light emitting unit 200 can be easily adjusted to a desired angle. In general, in the case of the fluorescent type LED lighting device 10, the first gear 114 of the first connector cap 110 and the second gear of the second connector cap 120 are not easily changed once installed. The 124 may be adjusted to a predetermined angle when the lighting device is installed to obtain a desired light irradiation angle. The fluorescent type LED lighting device 10 having the light irradiation angle adjusting function is a device for adjusting the light irradiation angle by separating the first gear 114 and the second gear 124 and then engaging the gears at a desired angle. The structure of is very simple and the production cost can be drastically reduced. Accordingly, the fluorescent type LED lighting device 10 of the present invention may be equipped with a light irradiation angle adjustment function to support a cheaper and more practical installation in installing the lighting device to face the desired angle at a desired place.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described embodiments without departing from the spirit of the present invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such modifications are intended to fall within the scope of the appended claims.

10: fluorescent type LED lighting device 100: connection
110: first connector cap 111: module connection case
112: gear support 113: fastening groove
114: first gear 120: second connector cap
121: pin connection case 123: fastening protrusion
124: second gear 129: connector pin
200: light emitting unit 210: light emitting module;
211: circuit board 212: LED module
213: control box 214: heat dissipation structure
215: plate portion 216: bend portion
220: cover housing 221: circular plate portion
222: engaging dome portion 115: insertion projection

Claims

A light emitting unit having a predetermined length irradiating light in a predetermined direction for a plurality of LEDs arranged in a row and supplied power;
It is disposed on both ends of the light emitting portion in the longitudinal direction and wraps both ends of the light emitting portion and is connected to an external power source;
The connecting portion
A first connector cap connected to the light emitting part and having a first gear formed therein;
A second connector cap inserted into the external power source and coupled to the first connector cap, the second connector cap including a second gear coupled to the first gear;
Fluorescent lamp type LED lighting device having a light irradiation angle adjustment function comprising a.

The method of claim 1,
The first connector cap is
A module connection case surrounding an outer circumferential surface of one end of the light emitting unit;
A gear support extending from one surface of the module connection case;
The first gear formed on the gear support;
A fastening groove provided on an outer circumferential surface between the first gear and the gear support;
A fixing ring inserted into the fastening groove;
Fluorescent lamp type LED lighting device having a light irradiation angle adjustment function comprising a.

The method of claim 2,
The second connector cap is
A connector pin inserted into the external power source;
A pin connection case surrounding the connector pins;
A second gear formed inside the pin connection case and engaged with the first gear;
A fastening protrusion formed inside the pin connection case and fitted to the fixing ring;
Fluorescent lamp type LED lighting device having a light irradiation angle adjustment function comprising a.

The method of claim 3,
The first gear is formed along the edge of the end of the gear support,
The second gear is a fluorescent lamp type LED lighting device having a light irradiation angle adjustment function, characterized in that formed around the inner wall of the pin connection case.

The method of claim 3,
A cable connecting the connector pin to the circuit board of the light emitting unit and having a rotatable structure rotating according to the rotation of the first connector cap;
Fluorescent lamp type LED lighting device having a light irradiation angle adjustment function characterized in that it further comprises.

The method of claim 2,
The first connector cap is
An insertion protrusion protruding in the light emitting unit insertion direction from the inside of the module connection case to be inserted into and fixed to the heat radiation structure of the light emitting module of the light emitting unit;
Fluorescent lamp type LED lighting device having a light irradiation angle adjustment function characterized in that it further comprises.

The method of claim 1,
The light-
A circuit board on which side-by-side LED modules are mounted to irradiate light in one direction;
A heat dissipation structure in which the circuit board is mounted and dissipates heat generated from the LED module;
A cover housing coupled to one side of the heat dissipation structure to surround a circuit board on which the LED module is mounted;
Fluorescent lamp type LED lighting device having a light irradiation angle adjustment function comprising a.