Patent Publication Number: US-10774995-B2

Title: PCB module LED lamp having irradiation angle setting up function for Edison socket

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This patent application claims priority under 35 U.S.C. § 119 to Korean Patent Application No. 10-2019-0003559 filed on Jan. 10, 2019, the entire contents of which are incorporated by reference herein. 
     TECHNICAL FIELD 
     The present disclosure relates to a plate-shaped LED lamp fixture with an irradiation angle setting function for an Edison socket that is used as a security lamp or a street lamp installed on a road for a pedestrian. 
     BACKGROUND 
     A structure of a general security lamp of related art may be seen in Korean Utility Model No. 20-2008-0005178 (Title: Electric lamp for street lighting fixture; referred to as “cited invention 1”), which is illustrated in  FIG. 1 . 
     As disclosed therein, in the related art, a metal halide lamp is coupled to the Edison socket by rotating a base thereof, and if the metal halide lamp is required to replace, the base is rotated in the opposite direction to be removed and replaced with a new lamp. To this end, a diameter of the metal halide lamp has to be less than a distance D between the center of the Edison socket and a reflector, as illustrated in  FIG. 1 . However, a security lamp or a street lamp using an LED has recently been used widely, which is configured by assembling a large number of LEDs on a PCB. Specifically, the large number of LEDs are dispersed and arranged on the PCB, which gives rise to the increase in the width thereof. 
     Accordingly, a width of the plate-shaped LED is several times greater than the distance D, and thereby, the plate-shaped LED may not be mounted in the Edison socket. Thus, the Edison socket that is mounted in the existing luminaire can&#39;t be used, and thus, a problem occurs in which there is a construction work and an economic burden for replacing the luminaire itself. 
     In order to solve such a problem, an LED lamp has been manufactured in a narrow and long shape similar to an appearance of a metal halide lamp such that a socket and a housing of a security lamp or a street lamp may be used as it is, and an example thereof is illustrated in FIGS. 3 and 4 of Korean Patent No. 10-1709728 (Title of Invention: LED lighting apparatus; referred to as “cited invention 2”) and Korean Patent Publication No. 10-2018-0114476 (Title of Invention: LED lighting apparatus; referred to as “cited invention 3”). 
     In the cited inventions 2 and 3, a printed circuit board is formed to have a hollow pillar structure, and an LED chip is disposed on the printed circuit board, and the printed circuit board is put in the same cover member as a metal halide lamp to allow power to be supplied thereto, and thereby, a radius of the LED lighting device may be less than or equal to the distance D between the center of the Edison socket and the reflector. Since the existing metal halide lamp may be inserted into a socket of a housing to be used, the cited inventions 2 and 3 have an advantage that may solve an economic burden of replacing the LED lamp and the whole housing and Hassle due to a replacement construction work. Meanwhile, the cited inventions 2 and 3 have a problem in which since a space to emit heat generated during the LED lighting process is hard to secure, a failure rate is high due to a thermal damage of an LED in summer or the like. Further, since the LED has to be installed on a pillar of a limited area having a diameter smaller than the bulb of the metal halide lamp, the number of installable LEDs is limited, resulting in insufficient light quantity. In addition, the cited Invention 2 and 3 have a problem in which since the LED is installed around the hollow pillar, the LED emits light in all directions, and since the LED light has a high straightness, a light emission efficiency is reduced in the process of collecting light in a down direction which is a direction necessary for a security lamp or a street lamp. 
     SUMMARY 
     In order to solve these problems, provided is a plate-shaped LED lamp fixture capable of setting an irradiation angle for an Edison socket such that a wide plate-shaped LED may be used while still using the Edison socket. 
     Another object of the present disclosure is to provide a plate-shaped LED lamp fixture with an irradiation angle setting function for an Edison socket in which a plate-shaped LED is divided into two or more such that angles thereof may be adjusted and an irradiation angle of light may be adjusted. 
     In order to achieve the above-described objects, the present disclosure provides a plate-shaped LED lamp fixture with an irradiation angle setting function for an Edison socket including a base coupled to the Edison socket; a screw portion formed at an upper end of the base; a sphere body formed above the screw portion; an engagement member configured with a concave inlet portion in close contact with the sphere body, and a connection plate fixed to the concave inlet portion; a cover in which a pressing portion covering an outside of the concave inlet portion of the engagement member, a through-hole passing through the connection plate, and a tightening nut fastened to the screw portion of the base  100  are formed; a plate which is fixed to the connection plate of the engagement member and includes a center hole connected to a rotation axis of the plate-shaped LED and first position fixing means for fixing an angle of the plate-shaped LED; a rotation plate in which an axis hole is formed on the same axis as a center hole of the plate and includes second position fixing means fastened to the first position fixing means; and the plate-shaped LED  500  which is fixed to the rotation plate and whose rotation axis is installed coaxially with the center hole of the plate to integrally rotate with a rotation plate around the rotation axis. A plurality of the plate-shaped LEDs and a plurality of the rotation plates are provided in the plate. 
     According to the present disclosure, a plate-shaped LED lamp may be used by using a luminaire provided with an existing Edison socket as it is, an existing metal halide lamp is replaced with the plate-shaped LED lamp while minimizing a cost associated with purchase and replacement of the luminaire, and thereby, a high brightness may be obtained along with power saving. 
     In addition to this, since the present disclosure may use a plate-shaped LED having a plate width as wide as necessary by using an Edison socket, it is possible to not only solve a problem of heat dissipation occurring when LEDs are densely arranged in a pillar having a narrow diameter in the same manner as in cited inventions 2 and 3 and but also install the sufficient number of LEDs as needed. Also, since the light may be emitted in a desirable direction by first and second position fixing means, there is a useful effect that efficient lighting is optimized on the spot. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a longitudinal sectional view illustrating a structure of a luminaire using an Edison socket of a related art. 
         FIG. 2  is a perspective view of the luminaire using the Edison socket illustrated in  FIG. 1 . 
         FIGS. 3 and 4  are perspective views illustrating an LED lamp using the Edison socket of the related art. 
         FIG. 5  is a perspective view illustrating a plate-shaped LED lamp fixture for the Edison socket according to the present disclosure. 
         FIG. 6  is an exploded perspective view of  FIG. 5  according to the present disclosure. 
         FIG. 7  is a perspective view illustrating an irradiation angle setting structure of the fixture according to the present disclosure. 
         FIG. 8  is a longitudinal sectional view illustrating a structure of the fixture according to the present disclosure. 
         FIG. 9  is an explanatory diagram illustrating an angle adjustment state of the plate-shaped LED of the fixture according to the present disclosure. 
         FIG. 10  is a side view illustrating a tilting fixing state of the fixture according to the present disclosure. 
         FIG. 11  is a perspective view illustrating a plate-shaped LED lamp fixture for the Edison socket according to another embodiment. 
         FIG. 12  is an exploded perspective view of the present disclosure according to the embodiment illustrated in  FIG. 11 . 
         FIG. 13  is a perspective view illustrating an irradiation angle setting structure of the present disclosure according to the embodiment illustrated in  FIG. 11 . 
         FIG. 14  is a perspective view from below of the present disclosure according to the embodiment illustrated in  FIG. 11 . 
         FIG. 15  is a longitudinal sectional view illustrating the fixture of the present disclosure according to the embodiment illustrated in  FIG. 11 . 
         FIGS. 16A to 17B  are exemplary views of a street lamp fixture to which the plate-shaped LED lamp according to the present disclosure can be applied. 
         FIGS. 18A and 18B  are exemplary views of a tunnel lamp fixture to which the plate-shaped LED lamp according to the present disclosure can be applied. 
         FIGS. 19A and 19B  are exemplary views of a flood lamp fixture to which the plate-shaped LED lamp according to the present disclosure can be applied. 
     
    
    
     DETAILED DESCRIPTION OF THE DISCLOSURE 
     Embodiments of the present disclosure will be described in detail as follows with reference to the accompanying drawings such that those skilled in the art may easily implement the present disclosure. 
     An overall configuration of a specific embodiment according to the present disclosure is illustrated in  FIG. 5 . As can be seen in  FIG. 5 , the present disclosure includes an Edison socket  601  and a plate-shaped LED  500  in which an LED  501  is mounted on a wide PCB  502  of a known thin lamp fixture casing  600 . 
     To this end, as illustrated in the exploded perspective view of  FIG. 6 , the perspective view of  FIG. 7 , and the longitudinal sectional view of  FIG. 8 , the present disclosure includes a base  100  which is coupled to the Edison socket  601  and includes a threaded portion  104  formed around the base  100  and a terminal  101  provided at a lower end of the base  100 ; a screw portion  102  formed above the base  100 ; a sphere body  103  formed above the screw portion  102 ; an engagement member  200  configured with a concave inlet portion  201  in close contact with the sphere body  103  above the screw portion  102  and a connection plate  202  installed in the concave inlet portion  201 ; a cover  300  in which a pressing portion  301  covering the outside of the concave inlet portion  201  of the engagement member  200 , a through-hole  303  passing through the connection plate  202 , and a tightening nut  302  fastened to the screw portion  102  of the base  100  are integrally formed; a plate  400  including a center hole  403  which is fixed to the connection plate  202  of the engagement member  200  and fixes the center of the plate-shaped LED  500 , and first position fixing means  401  for fixing an angle of the plate-shaped LED  500 ; a rotation plate  450  in which an axis hole  454  is formed on the same axis as the center hole  403  of the plate  400  and includes second position fixing means fastened to the first position fixing means  401 ; and the plate-shaped LED  500  which is fixed to the rotation plate  450  and whose rotation axis is installed coaxially with the center hole  403  of the plate  400  to integrally rotate with a rotation plate  450  around the rotation axis. 
     The plat  400  may have a plurality of the plate-shape LEDs  500  and a plurality of the rotation plates  450 . 
     In the present disclosure configured as described above, an angle between the plate  400  to which the plate-shaped LED  500  is fixed and the base  100  is determined by the engagement member  200  and the sphere body  103  of the base  200 . 
     That is, in the present disclosure, by rotating the base  100  as illustrated in  FIG. 5  in a state where the tightening nut  302  of the cover  300  is separated from the screw portion  102  of the base  100 , the threaded portion  104  and the terminal  101  of the base  100  are coupled with the Edison socket  601  provided in the casing  600  of the lamp fixture. An angle of the concave inlet portion  201  of the engagement member  200  in close contact with the sphere body  103  of the base  100  is adjusted as necessary, and thereafter, the tightening nut  302  is tightened to the screw portion  102  in a state where the pressing portion  301  of the cover  300  maintains a contact state between the current concave inlet portion  201  and the sphere body  103 , and as a result, an angle of the plate  400  fixed by the connection plate  202 , a fastening screw, and the like of the bleed  200  is fixed. 
     By doing so, in the present disclosure, the base  100  may be coupled to the Edison socket  601  at any angle without rotating the plate-shaped LED ( 500 ). 
     In addition to this, in the present disclosure, the plate-shaped LED  500  may be divided into two or more to be disposed, angles thereof may be adjusted independently, and thereby, a light emission range may be appropriately adjusted according to the installation location. In the drawings, two plate-shaped LEDs  500  are illustrated as an embodiment, but the present disclosure is not limited thereto and multiple plate-shaped LEDS may be provided in the same method. A case where the plate-shaped LED  500  is divided into two will be described for the sake of clear description. The two plate-shaped LEDs  500  are separated by using a center axis bar  504  as a center depending on the installation location, angles thereof are adjusted respectively, and thereafter, the two plate-shaped LEDs  500  may be fixed to the plate  400  by using the second position fixing means and the first position fixing means  401  of the rotation plate  450 . 
     To this end, as illustrated in  FIGS. 6 to 8 , a rotation axis of the plate-shaped LED  500  is inserted into the center hole  403  of the plate  400  together with the rotation plate  450  such that the plate-shaped LED  500  is rotatable, the first position fixing means  401  may be configured to have an arc-shaped fastening hole  402 , the second position fixing means may configure a through-hole  452  passing through the rotation plate  450  and a fixing screw  453  fixed to the fastening hole  402  of the first position fixing means  401  through the through-hole  452 , the fixing screw  453  is fixed to any one position of the arc-shaped fastening hole  402  of the first position fixing means  401  through the through-hole  452  after adjusting the rotation angle by rotating the plate-shaped LED ( 500 ) with the rotation plate  450  around the rotation axis, and thereby, the rotation plate  450  may be fixed to the plate  400  at the rotated angle by the arc-shaped fixing screw  453 . 
     Further, the first position fixing means  401  may have a plurality of protrusions repeatedly formed inside the arc-shaped fastening hole  402 , the second position fixing means may be configured by a rotation plate  450  fixed to a bottom of the plate-shaped LED  500  and an elastic body protruding from the rotation plate  450  and slid between the protrusions inside the fastening hole  402 , and, when the elastic body of the rotation plate  450  inserted between the protrusions inside the fastening hole  402  rotates the rotation plate  450  or the plate-shaped LED  500  fixed to the rotation plate  450 , the elastic body is partially deformed and moved between the next protrusions inside the fastening hole  402 , and then, recovered, and thereby, a rotation angle of the plate-shaped LED  500  may be fixed. Alternatively, if the elastic body of the rotation plate  450  is pushed by a rotation force of the rotation plate  450  or the plate-shaped LED  500  fixed to the rotation plate  450  and thereby a protruding length is reduced and the rotation force disappears, the protruding length is recovered by the elastic force, and thus, the rotation angle of the plate-shaped LED ( 500 ) may be fixed. 
     Accordingly, in the present disclosure, the two plate-shaped LEDs  500  may be installed so as to have different angles from each other, and thus, the two plate-shaped LEDs  500  may be constructed in an optimized state depending on an installation location. This state is illustrated in  FIG. 9 . 
     Further, if crops are grown on the back of a street lamp, the crops are damaged by light pollution such as the street light being illuminated at night, which causes the crops to overgrow. In order to prevent the crops from overgrowing, the present disclosure may adjust an emission direction of light. 
     To this end, in the present disclosure, an irradiation angle is raised in the direction of a road such that light is not emitted towards the back. To this end, as illustrated in  FIG. 10 , an angle between the base  100  and the engagement member  200  is adjusted to couple the tightening nut  302  of the cover  300  with the screw portion  102  by rotating the tightening nut  302 , and thereby, light of the plate-shaped LED  500  is emitted in the direction of a comb teeth in the lower right of  FIG. 10 . Accordingly, the light is prevented from emitting to the back of the street lamp, and thus, growth of the crops is not disturbed. 
     Further, in the present disclosure, since a rotation angle of the plate-shaped LED  500  itself is adjustable, a metal halide lamp using the Edison socket  601  of the thin street lamp may be replaced with an LED lamp, and a light emission direction may be adjusted up, down, left, right by adjusting an intimate angle between the sphere body  103  of the base  100  and the concave inlet portion  201  of the engagement member  200 , and furthermore, the emission direction of light of the two plate-shaped LEDs  500  may be adjusted and fixed independently. Accordingly, a security lamp and a street lamp may be constructed in a state optimal for an actual situation. 
     In addition, in the present disclosure, as illustrated in  FIG. 11 , the plate-shaped LEDs  500  may perform a peristaltic operation at the same angle by allowing the rotation plate  450  fixed to the center hole  403  of the plate  400  to rotate to perform the peristaltic operation. To this end, the present disclosure, as illustrated in  FIGS. 11 to 15 , includes the threaded portion  104  and the terminal  101  on the periphery and the lower end of the base  100  coupled to the Edison socket  601 ; the cover  300  which covers the outside of the concave inlet portion  200  of the engagement member  200  and in which the screw portion  102  formed at an upper end of the base  100 , the sphere body  103  formed above the screw portion  102 , the concave inlet portion  201  in close contact with the sphere body  103  above the screw portion  102 , and the fastening nut  302  fastened to the screw portion  102  of the base  100  are integrally formed; the plate  400  which is fixed to the connection plate  202  above the engagement member  200  and includes two center holes  403  and two first position fixing means  401  for fixing the plate-shaped LEDs  500 ; the two rotation plates  450  which is installed axially in the two center holes  403  of the plate  400  respectively and have two second position fixing means; and the two plate-shaped LEDs  500  which are installed above the two rotation plates  450  and are installed coaxially with the central holes  403  and the rotation plates  450  of the plate  400  by the rotation axis. Engagement gears  455  are provided around each of the two rotation plates  450  to interlock to rotate, and upper ends of the center axis bars  504  of the two plate-shaped LEDs  500  fixed by the center axis bars  504  on the rotation plates  450  are connected by a linkage  505 . 
     In the embodiment according to the present disclosure as described above, the base  100  described with reference to  FIG. 5  is coupled to the Edison socket  601 , and an angle at which the sphere body  103  of the base  100  and the concave inlet portion  201  of the engagement inlet portion  200  are in close contact with each other is adjusted as illustrated in  FIG. 10 , and thereafter, the tightening nut  302  of the cover  300  is coupled to the screw portion  102  of the base  100 , and thereby, an installation angle is fixed. 
     If the plate-shaped LED  500  rotates after doing so, the rotation plate  450  rotates together with the LED, and thereby, the other rotation plate  450  is rotated by the engagement gears  455  of the rotation plate  450 , and the plate-shaped LEDs  500  fixed on the other rotation plates  450  perform a peristaltic operation. That is, the plate-shaped LEDs  500  rotate in opposite directions and move at symmetrical angles. 
     In the present disclosure, since the rotation plates  450  below the plate-shaped LEDs  500  are peristaltically moved by the engagement gears  455  and upper portions of the plate-shaped LEDs  500  move together with the linkage  505  at the same time, even if sizes of the plate-shaped LEDs  500  are large, the plate-shaped LEDs  500  are symmetrical in a stable state and a smooth angle adjustment thereof is possible. 
     After the angle is optimized by doing so, the through-hole  452  and the fixing screw  453  are provided as the second position fixing means, and the fixing screw  453  is fixed to any one position of the arc-shaped fastening hole  402  of the first position fixing means  401  through the through-hole  452 , and thereby, the rotation plate  450  may be fixed to the plate  400  by the fixing screw  453  at a fixed angle. 
     According to the embodiments illustrated in  FIGS. 11 to 15 , in the same manner as the embodiments illustrated in  FIGS. 5 to 10 , a metal halide lamp using the Edison socket  601  may be replaced with an LED lamp, and an light emission direction may be adjusted up, down, left, right by adjusting an intimate angle between the sphere body  103  of the base  100  and the concave inlet portion  201  of the engagement member  200 , and furthermore, the light emission direction of the two plate-shaped LEDs  500  may be adjusted and fixed by the engagement gears  455  of the rotation plate  450  at one operation and fixed independently. Accordingly, a security lamp and a street lamp may be easily constructed in a state optimal for an actual situation. 
     In addition, in the present disclosure, since the plate-shaped LED  500  emits light having a very strong straightness, it is necessary to use a diffusion plate  503  so as to prevent glare by diffusing the light, and when a diffusion configuration is installed in the casing  600  as needed, the diffusion plate  503  formed in the plate-shaped LED  500  may not be used. 
     In addition, the present disclosure may be applied to a street lamp or a security lamp to which the Edison socket is applied as illustrated in  FIGS. 16 and 17  and may be utilized for a tunnel lamp illustrated in  FIG. 18  or a flood lamp illustrated in  FIG. 19 . 
     That is,  FIGS. 16A, 16B, 17A, and 17B  are examples a side sectional view and a bottom view of a street lamp having the Edison socket,  FIGS. 18A and 18B  are examples of a front view and a side view of a tunnel lamp including the Edison socket, and  FIGS. 19A and 19B  are examples of a front view and a side view of a flood lamp including the Edison socket. As described above, a lamp configured with the plate-shaped LED  500  according to the present disclosure may be applied to various types of fixtures illustrated in  FIGS. 16A to 19B , and may also be applied to all lamp fixtures using the Edison sockets configured by various forms required by other users. 
     As such, the technical idea of the present disclosure is described with reference to the accompanying drawings, the present disclosure is described by way of the best example, the embodiment is not intended to limit the present disclosure, those skilled in the art may make various changes and imitations of a dimension, a shape, a structure, and the like without departing from the scope of the technical idea of the present disclosure, and the changes and imitations are included in the scope of the technical idea of the present disclosure.