KR100923982B1 - LED fluorescent lamp type fluorescent lamp - Google Patents

Abstract

The present invention relates to a fluorescent lamp type LED lighting lamp, and more particularly, mounted on a luminaire equipped with a DC power supply for supplying a direct current power supply for driving the LED, and includes a non-polar bridge circuit in the LED module therein, the light and the amount of heat generated It is small and can be conveniently installed in a luminaire without considering polarity, and includes a reflecting plate for condensing the light emitted from the LED module to the front and a light transmitting case for uniformly spreading the light of the LED module in a wide area through the recess formed in the inner surface. The present invention relates to a fluorescent lamp type LED lighting lamp.

The present invention for this purpose is to form the same shape as the fluorescent lamp body body 110, the light transmitting case 150 and the electrode terminal portion 160 is configured to embed the heat sink 130, LED module 120 and reflecting plate 140 The body case 110 is provided with a window 111 for heat dissipation, and the LED module 120 has a non-polar bridge circuit unit for matching the polarity of the DC power input through the electrode terminal 160 to the polarity of the LED ( 123 is mounted and a plurality of recesses 151 are formed in the light transmission case 150 such that a radius of curvature gradually increases from the center to the outside.

Description

LED lighting lamp of fluorescent lamp type {LIGHT EMITTING DIODE ILLUMINATION LAMP}

The present invention relates to a fluorescent lamp type LED lighting lamp, and more particularly, mounted on a luminaire equipped with a DC power supply for supplying a direct current power supply for driving the LED, and includes a non-polar bridge circuit in the LED module therein, the light and the amount of heat generated It is small and can be conveniently installed in a luminaire without considering polarity, and includes a reflecting plate for condensing the light emitted from the LED module to the front and a light transmitting case for uniformly spreading the light of the LED module in a wide area through the recess formed in the inner surface. The present invention relates to a fluorescent lamp type LED lighting lamp.

Lighting devices using general LEDs (Light Emitting Diodes) are widely used in various fields because of their low electricity consumption and semi-permanent lifetime. In particular, fluorescent lamps formed to irradiate light due to the excitation of the discharge gas enclosed inside the vacuum glass tube among the lighting devices have the advantage of less glare and higher luminous efficiency than incandescent bulbs, but have a difficulty in manufacturing the vacuum glass tube to be sealed and have a long service life. There is a problem in that it is not constant and has to be replaced after a certain period of time and flickering occurs or the color of the light is irradiated when the end of life.

Recently, various fluorescent lamp type LED lighting lamps have been developed to solve the problems of the conventional fluorescent lamp described above. Conventional fluorescent type LED lighting lamp has a structure in which a plurality of LED mounted circuit modules are built in a housing of the same type as a conventional fluorescent lamp, and connects a power terminal for supplying power to a circuit module to a luminaire to which power is supplied. The light is irradiated. In addition, the LED lighting lamp is to form a housing and a power terminal in the same form as a fluorescent lamp to utilize the conventional fluorescent lamps in order to eliminate the inconvenience of designing and using a new lighting device and a power device connected thereto. Is being developed. Conventional fluorescent lamps have a body for supporting the lamp, the body includes a ballast for driving the lamp, the body is physically coupled to the terminal pin of the lamp and a socket for electrically connecting the ballast and the lamp Is provided.

In the above-described conventional fluorescent lamp type LED lighting lamp, the power module for supplying the LED driving DC power is installed together inside the lamp, but the lamp is deteriorated due to the driving heat of the power module, and the design of the lamp structure is limited. In addition, when a power module for supplying a DC power source for driving an LED is installed in the luminaire body, the terminal of the lamp and the socket of the luminaire should be designed in consideration of the polarity of the DC power source, and this should be taken into consideration when connecting the lamp and the luminaire. There is a problem in that the replacement of the lamp becomes inconvenient.

In addition, the conventional LED lighting lamp has a problem that it is difficult to replace it with bare hands because the lamp is easily deteriorated due to long-term driving such as emergency exit or underground parking lot. A heat sink for preventing this is commonly used, but the heat sink is sealed from the case of the lamp to reduce heat dissipation efficiency, or on the contrary, the heat sink is completely exposed to the outside, thereby making it difficult to protect a user's hand from deterioration.

On the other hand, in a place where the installation interval of the lighting device is wide, such as an emergency exit or an underground parking lot, light should be irradiated over a wide area. Conventional LED lighting lamps include a function for diffusing light over a wide area for this purpose, but due to uniform diffusion without considering the amount of light irradiated in all directions of the lamp and the amount of light irradiated in the lateral direction There is a problem that the illumination of the emergency exit or underground parking lot is not formed uniformly.

The present invention is to solve the above-mentioned problems, in particular, is configured to be mounted on a luminaire equipped with a DC power supply for supplying a direct current power supply for the LED drive, the same as the conventional straight fluorescent lamp without checking the polarity of the lamp The present invention can be easily mounted, and has a purpose to provide a fluorescent type LED lighting lamp which is lighter and generates less heat than a conventional fluorescent type LED lamp.

In addition, the present invention includes a reflective plate for condensing the light irradiated from the LED module to the front surface and a light transmitting case for uniformly diffusing the light of the LED module in a wide area through a recess formed in the inner surface, a wide gap between the lighting device is formed Even if installed in the underground parking lot is another object to provide a fluorescent type LED lighting lamp that can illuminate the parking lot with a uniform illumination.

In addition, the present invention by installing a heat sink in the lower portion of the LED module and forming a window opened in the body case to facilitate heat dissipation according to the driving of the LED module for a long time, and integrally formed a net protective frame on the window It is another object of the present invention to provide a fluorescent lamp type LED lighting lamp that prevents the hand injury due to deterioration of the heat sink by the partial sealing of the opening of the window, thereby making it easy to replace.

The present invention for achieving the above object, the first lamp socket 211 is electrically connected to both ends of the output terminal of the DC power supply 220 and the DC power supply 220 converts the AC power input to the DC power output; And a fluorescent lamp type mounted on the luminaire 200 having the second lamp socket 212 and fitted to the first lamp socket 211 and the second lamp socket 212 to receive DC power and light the lamp. In the LED lighting lamp 1 of the window 111 is formed in the center of the opening is formed a protective frame 114 of the net-shaped crossing across the window 111, the slide groove 112 in the longitudinal direction on the inner surface 113 is formed, the body case 110 is formed integrally with the protective frame 114 of the mesh-shaped window (111); A heat sink 130 assembled to be seated on the window 111 of the body case 110; Printed circuit is fixed to the upper surface of the heat sink 130, a plurality of LEDs 121, the plurality of LEDs 121 is mounted and a circuit pattern is printed to supply power to the plurality of LEDs 121 An LED module 120 having a substrate 122; The upper and lower surfaces are formed in an open hexahedral shape, and the upper end 141 is fitted into the slide grooves 112 and 113, respectively, and the lower end 142 is formed to be narrower than the upper end 141. An inclined surface 143 which is seated on the upper end 141 and the lower end 142 is formed to surround the plurality of LEDs 121 in all directions, and condenses the light emitted from the plurality of LEDs 121 to the front. Reflecting plate 140 to make; A light transmitting case 150 assembled to the body case 110 to cover the LED module 120 and the reflecting plate 140, and having a plurality of recesses 151 formed in a groove on an inner surface thereof; And a circular cap 161 coupled to both ends of the assembly of the body case 110 and the light transmitting case 150 to surround the both ends, and detachable to the first lamp socket 211 and the second lamp socket 212. It is provided to be exposed from the circular cap 161 so as to be coupled to the electrical power to deliver the DC power supplied through the first lamp socket 211 and the second lamp socket 212 to the LED module 120 It characterized in that it comprises a; electrode terminal 160 made of a terminal pin 162 to be connected.

The LED module 120 is mounted on one end of the printed circuit board 122, and the input terminals (a, b) are electrically connected to the terminal pins 162 of the circular cap 161 provided at both ends, and the output terminal. (c, d) is electrically connected to the plurality of LEDs 121 through the printed pattern of the printed circuit board 122, even if the polarity of the DC power input through the input terminals (a, b) is changed to output (c) And, the polarity of the DC power output to the d) is a non-polar bridge circuit unit 123 to be the same;

The concave portion 151 formed on the inner surface of the light transmitting case 150 has a radius of curvature gradually formed from the center to the outer portion, and thus the concave portion 151b closer to the center than the concave portion 151a close to the outer portion. It is characterized in that the light diffusion angle of.

The nonpolar bridge circuit unit 123 connects the diode pairs D1 and D3 connected in series and the other diode pairs D2 and D4 connected in series between the output terminals c and d, respectively. D2, D3, and D4 are forward biased in the same direction from one output terminal (d) to the other output terminal (c), and each series connection point of the series-connected diode pairs is input (a, b). It is characterized by consisting of.

LED lighting lamp of the fluorescent lamp type according to the present invention is configured to be mounted to a luminaire having a DC power supply including a power module for driving the LED module, a plurality of LEDs of the DC power supply through a non-polar bridge circuit installed therein Since the power is supplied, the LED lighting lamp can be conveniently installed and replaced without considering the polarity of the electrode terminal part. Since the lamp does not have a module or a smoothing circuit for driving the LED module, it has a light and low heat generation rate. .

In addition, it includes a reflector plate surrounding a plurality of LEDs and a light-transmitting case formed with a recess on the inner surface, respectively, and condenses the light emitted from the plurality of LEDs to the front and diffuses the condensed light back to a large area to widen the distance between the lighting devices It is possible to form a uniform illuminance in a wide area such as underground parking lot to be formed.

In addition, further comprising a heat sink to the LED module, a body case for exposing a portion of the heat sink to dissipate the driving heat to the outside, and a side cover thermally in contact with the terminal pin to improve the heat dissipation performance LED The lighting lamp is prevented from being deteriorated, thereby making it easy to replace the LED lighting lamp.

Hereinafter, a fluorescent lamp type LED lighting lamp according to the present invention will be described in detail with reference to the accompanying drawings and embodiments. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

First, a fluorescent lamp type LED lighting lamp according to an embodiment of the present invention will be described.

1 is a combined perspective view showing a fluorescent lamp type LED lighting lamp 1 according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing an exploded view of the LED lighting lamp 1 of FIG. have. 3 is a cross-sectional view of the LED lighting lamp 1 of FIG. 1 taken along the line A-A ', and FIG. 4 is illustrated of the LED lighting lamp 1 of FIG. 1 along the line B-B'. A cut partial cross section is shown.

1 to 4, the fluorescent lamp type LED lighting lamp 1 according to an embodiment of the present invention is the body case 110, the light transmitting case 150 and the electrode terminal unit 160 combined The LED module 120, the heat sink 130, the reflection plate 140 and the side cover 170 is built in the interior.

The fluorescent lamp type LED lighting lamp 1 configured as described above is mounted to a luminaire. In this case, the luminaire to which the fluorescent lamp type LED lighting lamp 1 is mounted includes a DC power supply 220 for converting an AC power input into a DC power and outputting the electrical power to both ends of an output terminal of the DC power supply 220. And a first lamp socket and a second lamp socket connected to each other. That is, the LED lighting lamp 1 is coupled to the electrode terminal portion 160 provided at both ends disposed between the first lamp socket and the second lamp socket of the luminaire, so that the electrode terminal portion 160 is the first lamp socket and It is mounted in electrical contact with the second lamp socket.

The luminaire used in the present invention is designed to be modified to include a power module for driving the LED module 120 in the ballast used in the conventional fluorescent lamp, the fluorescent lamp type LED lighting lamp (1) to supply the DC power from the DC power supply It is driven by receiving.

First, the body case 110 seals the inside of the LED lighting lamp 1 through a combination of a light transmitting case 150 and an electrode terminal unit 160 to be described below as a case having a vertical cross section having a half arc shape. In more detail, the body case 110 includes a window 111, slide grooves 112 and 113, and a protective frame 114. The window 111 is a rectangular window opened at the center of the body case 110, and a fastening groove 111a into which the heat sink 130 to be described below is inserted is formed at the circumference. The window 111 exposes one surface of the heat sink 130 from the fluorescent type LED lighting lamp 1 to the outside to help drive heat of the LED module 120 to be discharged to the outside of the window 111 through the heat sink 130. Play a role. Slide grooves 112 and 113 are formed in the longitudinal direction on the inner surface of the body case 110 and are formed for fastening and fixing the reflective plate 140 to be described later. In this case, the body case 110 and the reflector plate 140 may be fastened using a hook or a screw, but the present invention is not limited thereto. The protective frame 114 is formed in a mesh shape and is integrally formed inside the window 111. On the other hand, the outer end of the body case 110 may be further formed with a hook projection (110a) for coupling with the light transmitting case 150 to be described later. As such, the protective frame 114 partially closes the window 111 to provide an area within which the hand can reach the window 111, and thus, the hand near the window 111 due to the deterioration of the heat sink 130. It serves to prevent injury.

The LED module 120 is disposed in a sealed space by the body case 110, the light transmission case 150, and the electrode terminal unit 160 to irradiate light through the light transmission case 150. In more detail, the LED module 120 includes a plurality of LEDs 121 and LEDs, a nonpolar bridge circuit unit 123, and a printed circuit board 122. The plurality of LEDs 121 are mounted on the printed circuit board 122 and electrically connected to each other in series or parallel form and are driven by a power provided through the electrode terminal unit 160 to irradiate light. In addition, the non-polar bridge circuit 123 is mounted on one end of the printed circuit board 122 to provide the LED 121 with a constant polarity power regardless of the polarity of the DC power supplied through the electrode terminal 160. Regardless of whether the electrode terminal 160 can be connected to the luminaire. The LED module 120 will be described in more detail with reference to other drawings below.

The heat sink 130 is installed to interview the lower surface of the LED module 120 in order to cool the driving heat of the LED module 120. The heat dissipation plate 130 may be formed in a substantially square plate shape and may be assembled such that the protrusion 131 formed at the side end portion is seated in the fastening groove 111a of the window 111. Accordingly, the heat dissipation plate 130 may discharge the driving heat conducted from the LED module 120 to the outside through the side cover 170 to be described below with the opened window 111 of the body case 110.

The reflector plate 140 is assembled to be disposed above the LED module 120. In more detail, the reflector plate 140 has a hexahedron shape having an open top and bottom surfaces, and includes a rectangular upper end 141 and a rectangular lower end 142 narrower than the upper end 141 and the inclined surface 143 connecting them. . In this case, the reflective plate 140 may be coupled to the slide grooves 112 and 113 in the longitudinal direction of the upper end 141, respectively, and may be fixed to the inside of the LED lighting lamp 1. In this case, the lower end portion 142 of the reflector plate 140 is seated on the printed circuit board 122 and the inclined surface 143 surrounds a plurality of LED 121 modules mounted on the printed circuit board 122 at equal intervals. The reflective plate 140 serves to condense the light emitted from the plurality of LEDs 121 to the front side (upper direction). The reflector plate 140 may be made of reflective glass, aluminum or stainless material, but is not limited thereto.

The floodlight case 150 is a case having an approximately half arc-shaped cross section detachably coupled to the body case 110. The interior of the LED lighting lamp 1 is combined with the body case 110 and the electrode terminal unit 160. Seal it. That is, the light transmission case 150 is formed so that the hook protrusion (110a) of the body case 110 is removable by forming a coupling groove (150a) on the inner end.

In addition, the light transmitting case 150 has a plurality of recesses 151 having a groove shape on the inner surface thereof so that the light emitted from the LED module 120 is spread evenly and uniformly. According to the present invention, the light transmitting case 150 has a concave portion 151b having a width w1 of a concave portion 151a (hereinafter, referred to as an “outer portion”) formed at the outer side of the plurality of concave portions 151 at the center. It is formed relatively wider than the width w2 of the center. In addition, the plurality of concave portions 151: 151a and 151b have a concave lens shape in which the curvature gradually decreases from the center to the outside (that is, the radius of curvature increases). That is, the curvature of the concave portion 151a formed at the outer side is smaller than that of the concave portion 151b formed at the center.

Since the central portion 151b of the concave portion 151 has a larger curvature (that is, a smaller radius of curvature) than the outer portion 151a, the refractive index of transmitted light is relatively high, so the light collected from the reflector 140 is light. It can be spread wider than the outer portion (151a). The amount of light irradiated from the plurality of LEDs 121 and condensed through the reflector plate 140 is typically greater in the central portion 151b than in the outer portion 151a. Accordingly, the light transmitting case 150 diffuses the light of the side surface of the LED 121 having less light than the central portion 151b through the outer portion 151a, but the light in front of the LED 121 having more light than the outer portion 151a. Diffuses more widely through the central portion 151b so that the light is uniformly radiated over a wide area as a whole. Accordingly, the fluorescent lamp type LED lighting lamp 1 can form a more uniform illuminance than the conventional LED lighting apparatus in which a predetermined area is spotlighted.

The electrode terminal 160 is installed in the luminaire to supply power to the LED module 120. In more detail, the electrode terminal 160 includes a circular cap 161 and a terminal pin 162. The circular cap 161 is fitted to surround both ends of the body case 110 and the light transmitting case 150, and a stepped portion 161a may be formed on the inner surface to accommodate the side cover 170 to be described below. In addition, one end of the terminal pin 162 is located inside the circular cap 161 is electrically connected to the LED module 120 and the other end exposed to the outside of the circular cap 161 is the first and second lamps of the DC power supply It is mounted on the socket and electrically connected to the DC power supply of the luminaire. Since the electrode terminal unit 160 of the present invention drives a plurality of LEDs 121 regardless of the polarity of the power supplied from the terminal pin 162 due to the non-polar bridge circuit unit 123, it can be used without distinguishing the polarity. That is, one electrode terminal portion 160a and the other electrode terminal portion 160b are mounted to the first lamp socket and the second lamp socket, respectively, and the polarity of the first lamp socket and the second lamp socket is connected to the electrode terminal portion 160. May be excluded from consideration.

The side cover 170 is installed to separate the internal space in which the electrode terminal unit 160 and the LED module 120 to the reflector plate 140 are installed. That is, the side cover 170 has a disc shape and is seated on the stepped portion 161a of the circular cap 161. In addition, the side cover 170 includes at least one through-hole 171 formed, so that the air inside the LED lighting lamp 1 is circulated to the outside through the through-hole 171. At this time, the side cover 170 is in thermal contact with the terminal pin 162 to block heat from being discharged from the terminal pin 162 into the LED lighting lamp (1). As such, the side cover 170 may be made of a plastic or alloy material having excellent heat dissipation performance, but is not limited thereto. In addition, the side cover 170 may be provided in the form of a printed circuit board electrically connected to the terminal pin 162 and the LED module 120, but is not limited thereto.

Next, the LED module 120 according to an embodiment of the present invention will be described in detail.

5, when the LED lighting lamp 1 according to the embodiment of the present invention is mounted on the luminaire 200, the electrical connection structure between the components of the LED lighting lamp 1 and the components of the luminaire 200 Is a schematic circuit diagram.

FIG. 6 is a circuit diagram showing an example of a detailed configuration of the DC power supply 220 provided in the lamp 200 in FIG. 5.

FIG. 7 shows the circuit diagram of FIG. 6 when the LED lighting lamp 1 is mounted on the luminaire 200 such that the electrical contact poles between the terminal pins 162a and 162b and the lamp sockets 211 and 212 are changed. It is a circuit diagram.

Referring to FIG. 5, the LED lighting lamp 1 according to the embodiment of the present invention includes a nonpolar bridge circuit unit 123 electrically connected to terminal pins 162a and 162b at both ends and the terminal pins 162a and 162b. And a plurality of LEDs 121 connected to the non-polar bridge circuit unit 123 to constitute an electrical circuit.

In addition, the lamp 200 to which the LED lighting lamp 1 is mounted may include a DC power supply 220 that receives AC power from an external power supply 300, and a first electrically connected to the DC power supply 220. The lamp socket 211 and the second lamp socket 212 constitute an electrical circuit. In addition, when the LED lighting lamp 1 is mounted such that the terminal pins 162a and 162b come into contact with the first lamp socket 211 and the second lamp socket 212, the luminaire 200 may be discharged from the external power source 300. The supplied AC power is converted into DC power using the DC power supply 220 and supplied to the LED lighting lamp 1 through the lamp sockets 211 and 212.

The DC power supply 220, according to the specific embodiment shown in FIG. 6, the AC power input from the power stabilizer 221 and the power stabilizer 221 for outputting a stabilized AC power to the DC power It includes a rectifier 223 to convert. The power stabilizer 221 converts an AC power supplied from the external power source 300 to obtain an AC power source necessary for the LED lighting lamp 1 to be turned on, that is, a power source having a voltage required for the LED 121 to be turned on. Alternatively, it serves to supply stable AC power to the rectifier 223 by preventing overcurrent and removing noise of the power supply.

The rectifier 223 substantially serves to provide a DC power required to drive the LED module 120, and is converted by the rectifier circuit 223a and the rectifier circuit 223a to convert the AC power into DC power. And a smoothing circuit 223b for smoothing the DC power supply. The rectifier circuit 223a has a structure in which four diodes D21 to D24 are bridged, and the AC input terminals e and f of the rectifier circuit 223a are electrically connected to the power stabilizer 221 and the anode output terminal ( h) and the negative output terminal g are configured to be electrically connected to the smoothing circuit 223b to convert AC power into DC power. The smoothing circuit 223b is composed of a capacitor C1 to remove the ripple of the DC power output from the rectifier circuit 223a, and the DC power source having the ripple removed has the first lamp socket 211 as a (+) pole. The DC lamp is supplied to the LED lighting lamp 1 using the second lamp socket 212 as the negative pole. Although the smoothing circuit 223b according to FIG. 6 is illustrated to include only the capacitor C1, the smoothing circuit 223b may also be a known circuit configuration further including a reactor or a resistor to improve the smoothness of the DC power.

When the LED lighting lamp 1 is mounted to the luminaire 200 configured as described above, as shown in FIG. 6, the LED lighting lamp 1 is connected to the first lamp socket 211 through the first terminal pin 162a. It is connected to the (+) pole and is connected to the (-) pole of the second lamp socket 212 through the second terminal pin 162b is supplied with a DC power.

The nonpolar bridge circuit unit 123 of the LED lighting lamp 1 energizes the LED 121 to supply the DC power supplied through the first and second terminal pins 162a and 162b.

At this time, the non-polar bridge circuit unit 123 is connected to the diode pair (D1, D3) connected in series and the other diode pair (D2, D4) connected in series between the output terminals (c, d), each diode (D1) , D2, D3, and D4 are forward biased in the same direction from one output terminal (d) to the other output terminal (c), and each series connection point of the series-connected diode pairs is input (a, b). ). In more detail, the first diode D1 of the nonpolar bridge circuit unit 123 has an anode electrically connected to the first terminal pin 162a and a cathode electrically connected to one end of the plurality of LEDs 121. . The second diode D2 has an anode electrically connected to the second terminal pin 162b so as to be electrically connected to the second lamp socket 212, and a cathode of the second diode D2 is electrically connected to one end of the plurality of LEDs 121. In addition, the third diode D3 has a cathode electrically connected to the first terminal pin 162a and an anode electrically connected to the other ends of the plurality of LEDs 121, and the fourth diode D4 has a cathode of the second diode D4. It is electrically connected to the terminal pin 162b and an anode is electrically connected to the other ends of the plurality of LEDs 121. Here, the first diode D1 and the second diode D2 are electrically connected to the cathodes, and the third diode D3 and the fourth diode D4 are electrically connected to the anodes.

Therefore, the non-polar bridge circuit unit 123 uses the first diode D1 and the fourth diode to supply a DC power source having the positive polarity of the first terminal pin 162a and the negative polarity of the second terminal pin 162b. It is transmitted to the LED 121 by the turn-on operation of D4 to be turned on. At this time, the second diode D2 and the third diode D3 are in a turn-off state due to reverse bias.

On the other hand, Figure 7, the first terminal pin 162a in contact with the second lamp socket 212 and the second terminal pin 162b in contact with the first lamp socket 211, LED lighting It is a circuit diagram which shows the state which attached the lamp 1 to the light fixture 200. FIG. Therefore, the first terminal pin 162a is connected to the negative polarity and the second terminal pin 162b is connected to the positive polarity.

At this time, the non-polar bridge circuit portion 123 of the LED lighting lamp 1, the second diode (D2) and the third diode (D3) is turned on (turn-on), the first diode (D1) and the fourth diode (D4). ) Is turned off, and the LED 121 is supplied with a DC power having the same polarity as that of FIG. 6.

That is, as shown in FIGS. 6 and 7, regardless of the shape in which the LED lighting lamp 1 is mounted to the lamp 200, the LED 121 is supplied with a DC power having the same polarity to reverse bias the LED 121. The voltage is applied to the forward bias voltage so that the voltage is not applied.

As described above, the LED lighting lamp 1 of the fluorescent lamp type according to an embodiment of the present invention is a separate luminaire (not shown) is provided with a DC power supply 220 for supplying DC power for driving the LED module 120 Since it is provided in the overall light and heat generation is reduced. Particularly, the present invention includes the first and second lamp sockets including the non-polar bridge circuit unit 123 and the electrode terminal unit 160 having the terminal pins 162 regardless of the polarity of the DC power provided from the rectifying unit 223. 211, 212 can be mounted. The non-polar bridge circuit unit 123 bridges the DC power supplied from the rectifying unit 223 according to the polarity so that the power of the same polarity is always supplied to the plurality of LEDs 121. Therefore, the fluorescent lamp type LED lighting lamp 1 according to the present invention is irrespective of the polarity of the power supplied to the first lamp socket 211 and the second lamp socket 212, the lamp 200 and the terminal pin (162: 162a) And electrical connection of 162b) facilitates replacement and installation of the lamp.

In addition, the LED lighting lamp 1 includes a reflecting plate 140 surrounding the plurality of LEDs 121 and a light transmitting case 150 having recesses 151 formed on the inner surface thereof, and irradiated from the plurality of LEDs 121. By condensing the light to the front and spreading the collected light uniformly over a large area so as not to generate spotlights, it is possible to form an efficient illuminance in a wide area space such as an underground parking lot having a wide interval between lighting devices.

In addition, the present invention is the heat sink 130 to the lower portion of the LED module 120, the body case 110 and the through-hole 171 to expose a portion of the heat sink 130 to dissipate the driving heat to the outside Including the formed side cover 170 may increase the heat dissipation performance of the LED lighting lamp (1). Therefore, the fluorescent lamp type LED lighting lamp 1 can be prevented from being deteriorated for a long time and the user's hand can be protected from the driving heat, so that the fluorescent lamp type LED lighting lamp 1 can be easily replaced and managed. Can be.

The present invention is not limited to the above specific preferred embodiments, and any person skilled in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention as claimed in the claims. Of course, such changes are within the scope of the claims.

1 is a perspective view of a combined fluorescent lamp type LED lighting lamp according to an embodiment of the present invention.

Figure 2 is an exploded perspective view of the LED lighting lamp according to an embodiment of the present invention.

3 is a cross-sectional view taken along the line AA ′ of the LED lighting lamp of FIG. 1.

4 is a partial cross-sectional view taken along line B-B 'of the LED lighting lamp of FIG.

Figure 5 is a circuit diagram schematically showing the electrical connection structure of the LED lighting lamp and the luminaire according to an embodiment of the present invention.

6 is a circuit diagram showing in more detail the DC power supply of FIG.

FIG. 7 is a circuit diagram when the contact state between the lampholders 211 and 212 and the terminal pins 162a and 162b in FIG. 6 is changed.

<Description of Symbols for Main Parts of Drawings>

1: LED lighting lamp 110: body case 120: LED module

121: LED 123: non-polar bridge circuit

130: heat sink 140: reflector 150: floodlight case

160, 160a, 160b: electrode terminal portion 162: terminal pin

162a: first terminal pin 162b: second terminal pin 170: side cover

200: lamp 211: first lamp socket 212: second lamp socket

220: DC power supply 221: power stabilizer 223: rectifier

223a: rectification circuit 223b: smoothing circuit

Claims (3)

The first lamp socket 211 and the second lamp socket 212 electrically connected to both ends of the output terminal of the DC power supply 220 and the DC power supply 220 and converts the AC power input to the DC power output; In the fluorescent lamp type LED lighting lamp (1), which is mounted to the luminaire 200 provided therein, and is coupled to the first lamp socket 211 and the second lamp socket 212 to be supplied with a DC power supply, A window 111 opened at the center is formed, and a net-shaped protection frame 114 intersecting the window 111 is formed, and slide grooves 112 and 113 are formed in an inner surface thereof, and the window ( A body case 110 in which a mesh-shaped protection frame 114 is integrally formed on the 111; A heat sink 130 assembled to be seated on the window 111 of the body case 110; Printed circuit is fixed to the upper surface of the heat sink 130, a plurality of LEDs 121, the plurality of LEDs 121 is mounted and a circuit pattern is printed to supply power to the plurality of LEDs 121 An LED module 120 having a substrate 122; The upper and lower surfaces are formed in an open hexahedral shape, and the upper end 141 is fitted into the slide grooves 112 and 113, respectively, and the lower end 142 is formed to be narrower than the upper end 141. An inclined surface 143 which is seated on the upper end 141 and the lower end 142 is formed to surround the plurality of LEDs 121 in all directions, and condenses the light emitted from the plurality of LEDs 121 to the front. Reflecting plate 140 to make; A light transmitting case 150 assembled to the body case 110 to cover the LED module 120 and the reflecting plate 140, and having a plurality of recesses 151 formed in a groove on an inner surface thereof; And The caps 161 are fitted to both ends of the assembly of the body case 110 and the light transmitting case 150 to surround the both ends, and are detachably attached to the first lamp socket 211 and the second lamp socket 212. It is provided to be exposed from the circular cap 161 to be coupled and electrically connected to the DC power supplied through the first lamp socket 211 and the second lamp socket 212 to the LED module 120 An electrode terminal 160 formed of terminal pins 162; It is configured to include, The LED module 120, Mounted at one end of the printed circuit board 122, the input terminals (a, b) are electrically connected to the terminal pins 162 of the circular cap 161 is provided at both ends, the output terminals (c, d) are the printing Directly connected to the plurality of LEDs 121 through the printed pattern of the circuit board 122, even if the polarity of the DC power input through the input terminal (a, b) is changed to the DC power output to the output terminal (c, d) The polarity of the non-polar bridge circuit portion 123; LED lighting lamp of the fluorescent lamp type, characterized in that it further comprises. The method of claim 1, The concave portion 151 formed on the inner surface of the light transmission case 150, The radius of curvature gradually increases from the center to the outside, so that the light diffusion angle of the concave portion 151b close to the center is larger than the concave portion 151a close to the outer side. The method of claim 2, The nonpolar bridge circuit unit 123, The diode pairs D1 and D3 connected in series and the other diode pairs D2 and D4 connected in series are connected in parallel between the output terminals c and d, and each diode D1, D2, D3 and D4 is any one. Fluorescent lamp type, characterized in that the forward bias connection in the same direction from the output terminal (d) of the other to the other output terminal (c), and each series connection point of the series-connected diode pair is configured as the input terminals (a, b) LED lighting lamps.

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