KR101900789B1 - LED lamp having coupler of terminal - Google Patents

Abstract

An LED lamp according to the present invention includes: a housing; a light emitting diode covered by the housing; a substrate having the light emitting diode mounted thereon; a heat sink coming into contact with at least one of the substrate and the light emitting diode to radiate heat; an end cap provided on at least one of both ends of the housing; a socket connection terminal passing through the end cap to electrically connect the light emitting diode to an external socket; and a connection unit fixed to the substrate, electrically connected to the light emitting diode module, and coupled to the socket connection terminal. The connection unit includes a body portion (261) mounted on the substrate, a pair of fixation portions (264) fixed to the substrate, a first bent portion (2621) bent upward from one side of the body portion, and a second bent portion (2635) bent upward from the other side of the body portion. Accordingly, an influence due to the height or twisting of the socket connection terminal is minimized, so a line contact or a surface contact is implemented between the socket connection terminal and the connection unit.

Description

[0001] The present invention relates to an LED lamp having a terminal connection structure,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED lamp having a terminal connection structure, and more particularly, to an LED lamp that facilitates connection between an internal circuit such as an LED and a terminal during assembly and stably maintains a connection structure of the terminal.

In order to mount the fluorescent lamp on the ceiling, as shown in Figs. 1 and 2, a socket connecting terminal 161 protruding outside the fluorescent lamp cap 16 is attached to the fluorescent lamp socket 17 and used . The socket connection terminal 161 of the fluorescent lamp is formed in a rod shape and is inserted through from the outside to the inside of the short cap 40. As shown in FIG. 3, the single socket 17A and the single-piece cap 16A (see FIG. 3) of the one-direction socket-coupled fluorescent lamp 15A ' The socket connection terminals 161 are connected to the socket connection terminals 161. [

In the case of a light emitting diode fluorescent lamp which can be inserted into a fluorescent lamp socket instead of the conventional fluorescent lamp, the socket connection terminal protruding outwardly is provided since the fluorescent lamp has the same connection structure as a conventional fluorescent lamp. However, a structure for electrical connection of a socket-shaped terminal connection terminal and a substrate on which a light emitting diode is mounted is one of the main concerns of this type of LED lamp.

As one of prior arts in this technical field, Korean Patent Publication No. 10-2018-0012538 "connection structure and connection terminal of light emitting diode module" proposed by the present applicant (hereinafter referred to as prior art 1) is exemplified.

In the case of the prior art document 1, the U-shaped bend portion shown in the connection terminal of FIG. 7 is formed so as to coincide with the coupling direction or insertion direction of the socket connection terminal. In this case, There is a case where a point contact is made without line or surface contact, which may affect the performance of the lamp.

The present invention provides a structure that enables line contact or surface contact between a socket connecting terminal and a connecting portion by minimizing the influence of a height or a tilting of the socket connecting terminal.

An LED lamp according to the present invention includes: a housing; A light emitting diode covered by the housing; A substrate portion on which the light emitting diode is mounted; A heat dissipating plate portion which is in contact with at least one of the substrate portion and the light emitting diode and radiates heat; A cap provided on at least one of both ends of the housing; A socket connection terminal which penetrates the short cap and electrically connects the light emitting diode and the external socket; And a connection part fixed to the base part and electrically connected to the light emitting diode module and coupled with the socket connection terminal,

The connection portion includes a body portion (261) which is seated on the base portion; A pair of fixing parts 264 bent downward from the body part 261 and fixed to the base part; A first bent portion 2621 bent upward from an imaginary line parallel to a direction of connection of the socket connection terminal from one side of the body portion; And a second bent part (2635) bent upwards with respect to an imaginary line parallel to a direction of connection of the socket connection terminal from the other side of the body part,

The first bent portion 2621 and the second bent portion 2635 each have a third bent portion 2623 and a fourth bent portion 2631 that are vertically opposed to each other on the end side, The first bent portion 2623 and the second bent portion 2631 are bent into a concave shape facing each other to form a space into which the end of the socket connecting terminal is inserted, (2635) is bent in a direction to surround the outer circumferential surface of the socket connecting terminal when the socket connecting terminal is coupled.

The third bent portion 2623 and the fourth bent portion 2631 may be formed in a plate shape that is once bent.

The third bent portion 2623 and the fourth bent portion 2631 extend toward the socket connection terminal and are bent toward the opposite sides of the third bent portion 2623 and the fourth bent portion 2631, And coupling inducing parts 2625 and 2633 for inducing coupling between the third bent part 2623 and the fourth bent part 2631 and the socket connecting terminal.

The body portion is formed of a first body portion 261A and a second body portion 261B which are separated from each other and the first body portion 261A and the second body portion 261B are formed of the first And may be connected to the bent portion 2621 and the second bent portion 2635, respectively.

The pair of fixing parts 264B1 and 264B2 are provided on the first body part 261A and the first body part 261A is stacked on the second body part 261B, One of the pair of fixing portions 264B2 may be fixed to the base portion through the second body portion 261B.

The third bent portion 2623 is positioned below the fourth bent portion 2631 and the first bent portion 2623 and the body portion 261 are formed with a first insulation portion 2613 for preventing direct contact between the third bent portion 2623 and the body portion 261. [ (269).

The base portion may further include a second insulation portion 27 for preventing direct contact between the socket connection terminal and the base portion on a coupling path of the socket connection terminal at a position adjacent to the connection portion.

The second insulating portion may have a curved contact groove 271 having a radius of curvature larger than a curvature radius of the socket connecting terminal at the center side.

According to the present invention, it is possible to minimize the contact angle of the connection portion with respect to the relative height of the socket connection terminal, thereby enabling line contact or surface contact between the socket connection terminal and the connection portion.

1 to 3 are schematic views for explaining conventional fluorescence.
4 is an exploded perspective view illustrating an LED lamp according to an embodiment of the present invention.
5 is an incisional perspective view showing a single cap according to an embodiment.
FIGS. 6 and 7 are a perspective view and a front view showing a connection part according to an embodiment.
8 and 9 are a perspective view and a front view showing a connection part according to another embodiment.
FIG. 10 is a front view showing a connection portion according to another embodiment. FIG.
11 is a schematic view for explaining a second insulating portion according to an embodiment.
12 is a schematic view for explaining the functions of the connection portion and the second insulation portion according to the embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the absence of special definitions or references, the terms used in this description are based on the conditions indicated in the drawings. The same reference numerals denote the same members throughout the embodiments. For the sake of convenience, the thicknesses and dimensions of the structures shown in the drawings may be exaggerated, and they do not mean that the dimensions and the proportions of the structures should be actually set.

An LED lamp according to one embodiment will be described with reference to Figs. FIG. 4 is an exploded perspective view illustrating an LED lamp according to an exemplary embodiment of the present invention. FIG. 5 is an exploded perspective view illustrating a single cap according to an exemplary embodiment. FIGS. 6 and 7 are cross- And FIG.

The LED lamp according to the present invention includes a housing 21, a light emitting diode (not shown) covered by the housing 21, a substrate portion 22 on which the light emitting diode is mounted, a substrate portion 22, light emitting diodes A heat radiating plate portion (not shown) which contacts and radiates heat, and a short cap 23.

The housing 21 covers the light emitting diode and the substrate portion 22 so as to be separated from the outside. The heat sink part is provided on the rear surface of the substrate part 22 and is coupled with the housing 21 to function as a single housing or to be exposed to the outside through a part of the housing 21. [

The end cap is provided on at least one side of both ends of the housing 21. In the present embodiment, the single-socket type LED lamp is described as an example for the sake of convenience of description, and thus it is provided only on one side of the housing 21.

The socket connection terminal 25 functions to electrically connect the light emitting diode and the external socket through the short cap 23. At this time, the connection portion 26 is provided and functions as a contact electrically connected to the inner light emitting diode. On the other hand, the second insulating portion 27 is provided on the end side of the substrate. The second insulating portion 27 is provided on the coupling path of the socket connecting terminal 25 among the positions adjacent to the connecting portion 26 and prevents direct contact between the socket connecting terminal 25 and the base portion 22.

6 and 7, the connection portion 26 includes a body portion 261, an upper connection portion 263, a lower connection portion 262, and a fixing portion 264. There is a difference in the number of connecting portions and the direction of bending in comparison with the conventional connecting portion.

Specifically, the body portion 261 is mounted on the base portion to support the upper connection portion 263 and the lower connection portion 262. The fixing portion 264 is bent downward from the body portion 261 and fixed to the base portion.

The upper connection portion 263 and the lower connection portion 262 are each formed to have a bent shape several times. Specifically, the first bent portion 2621 is bent upward from a side of the body portion 261 with respect to an imaginary line parallel to the coupling direction of the socket connecting terminal, and the second bent portion 2635 is also bent toward the body portion 261, Is bent upward with respect to an imaginary line parallel to the connecting direction of the socket connecting terminals. The first bent portion 2621 and the second bent portion 2635 each have a third bent portion 2623 and a fourth bent portion 2631 which are vertically opposed to each other on the end side.

At this time, the third bent portion 2623 and the fourth bent portion 2631 are formed in a once bent plate shape so that the third bent portion 2623 and the fourth bent portion 2631 are concave in the direction opposite to each other . The third bent portion 2623 and the fourth bent portion 2631 form a space into which the end portion of the socket connecting terminal is inserted in directions opposite to each other. The first bent portion 2621 and the second bent portion 2635 are bent in a direction to surround the outer peripheral surface of the socket connecting terminal 25 when the socket connecting terminal 25 is engaged.

The third bent portion 2623 and the fourth bent portion 2631 may be provided with coupling inducing portions 2625 and 2633. The coupling inducing portions 2625 and 2633 extend toward the direction in which the socket connecting terminals 25 are coupled and are bent outward so that the pairs of the third bent portions 2623 and the fourth bent portions 2631 and the socket connecting terminals 25 Thereby facilitating coupling.

A connecting portion according to another embodiment will be described with reference to FIGS. 8 to 10. FIG. FIGS. 8 and 9 are a perspective view and a front view showing a connection part according to another embodiment, and FIG. 10 is a front view showing a connection part according to another embodiment.

As shown in FIGS. 8 and 9, the fixing portions 264A may be provided as a pair, but they may be formed in different directions from the previously described embodiments. Specifically, the fixing part 264A according to the present embodiment can be formed by cutting a part of the body part 261, the lower connection part 262 and the upper connection part 263. In this case, the fixing portion 264A is formed so as to be parallel to the direction of engagement of the socket connecting terminal 25 in the width direction.

In this case, the manufacturing cost can be reduced.

On the other hand, as shown in FIG. 10, the body portion can be formed in a detachable form. The body portion is formed of a first body portion 261A and a second body portion 261B. The first body portion 261A and the second body portion 261B are connected to the first bent portion 2621 and the second bent portion 2635, respectively. On the other hand, the pair of fixing portions 264B1 and 264B2 are provided only in the first body portion 261A.

The first body portion 261A is provided on the upper portion of the second body portion 261B, and one of the pair of the fixing portions 264B2 penetrates the second body portion 261B, And can be fixed to the substrate portion. The substrate may have a groove for receiving the second body portion 261B.

In this case, the second body portion 261B may be formed of a synthetic resin material or the like and may simply be fixed. In addition, the first insulating portion 269 may be provided on the first body portion 261A to prevent direct contact between the third bent portion 2623 and the body portion 261. [ When the socket connection terminal 25 has such a structure, the socket connection terminal 25 can be electrically connected to the components such as the light emitting diode module through only the lower connection portion 262, thereby reducing the electrical loss due to the formation of a plurality of unnecessary electrical paths It is effective.

The second insulating portion will be described with reference to Fig. 11 is a schematic view for explaining a second insulating portion according to an embodiment.

As described above, the second insulating portion 27 may further include a second insulating portion 27 for preventing direct contact between the socket connecting terminal and the substrate portion 22 on the coupling path of the socket connecting terminal among the positions adjacent to the connecting portion 26. Further, the second insulating portion 27 can provide a restoring force against the horizontal deflection of the socket connecting terminal by forming a curved contact groove 271 having a radius of curvature larger than the radius of curvature of the socket connecting terminal at the center side .

The functions of the connecting portion and the second insulating portion according to the embodiment will be described with reference to FIG. 12 is a schematic view for explaining the functions of the connection portion and the second insulation portion according to the embodiment.

12 (a), when assembling the LED lamp, the end cap 23 is coupled to the housing 21 side. At this time, the socket connecting terminal 25 is moved toward the connecting portion 26, The socket connecting terminal 25 is coupled to the connecting portion 26 through the second insulating portion 27 as shown in FIG. 12 (b).

At this time, the second insulating portion 27 prevents the socket connecting terminal 25 from directly coming into direct contact with the base plate portion 22 and preventing the socket connecting terminal 25 from being short-circuited. When the socket connecting terminal 25 is placed in the contact groove 271 Thereby maintaining the structural stability at the stage of assembling and transferring after completion of the product.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. have.

26: Connection
261:
262:
263: upper connection
2621: first bent portion
2623: third bend
2625:
2631: fourth bend
2633:
2635: second bend

Claims (8)

housing;
A light emitting diode covered by the housing;
A substrate portion on which the light emitting diode is mounted;
A heat dissipating plate portion which is in contact with at least one of the substrate portion and the light emitting diode and radiates heat;
A cap provided on at least one of both ends of the housing;
A socket connection terminal which penetrates the short cap and electrically connects the light emitting diode and the external socket; And
And a connection part which is fixed to the base part and is electrically connected to the light emitting diode and is coupled to the socket connection terminal,
The connecting portion
A body portion (261) for receiving the substrate portion;
A pair of fixing parts 264 bent downward from the body part 261 and fixed to the base part;
A first bent portion 2621 bent upward from an imaginary line parallel to a direction of connection of the socket connection terminal from one side of the body portion; And
And a second bent portion (2635) bent upward from an opposite side of the body portion with respect to an imaginary line parallel to a direction of connection of the socket connection terminal,
The first bent portion 2621 and the second bent portion 2635 each have a third bent portion 2623 and a fourth bent portion 2631 that are vertically opposed to each other on the end side,
The third bent portion 2623 and the fourth bent portion 2631 are bent in a concave shape facing each other to form a space into which the end portion of the socket connecting terminal is inserted,
Wherein the first bent portion (2621) and the second bent portion (2635) are bent in a direction to surround the outer circumferential surface of the socket connecting terminal when the socket connecting terminal is coupled. The method according to claim 1,
The third bent portion 2623 and the fourth bent portion 2631 are formed in a plate shape bent once. 3. The method of claim 2,
The third bent portion 2623 and the fourth bent portion 2631 extend toward the socket connection terminal side and are bent toward the opposite side of the third bent portion 2623 and the fourth bent portion 2631 And a coupling guide portion (2625, 2633) for guiding the coupling between the third bent portion (2623) and the fourth bent portion (2631) and the socket connection terminal. The method according to claim 1,
The body portion is formed of a first body portion 261A and a second body portion 261B which are separated from each other and the first body portion 261A and the second body portion 261B are formed by the first bend (2621) and the second bent portion (2635). 5. The method of claim 4,
The pair of fixing portions 264B1 and 264B2 are provided on the first body portion 261A and the first body portion 261A is stacked on the second body portion 261B, (264B2) is fixed to the substrate portion through the second body portion (261B). The method according to claim 1,
The third bent portion 2623 is positioned below the fourth bent portion 2631 and the first insulating portion 2630 is formed to prevent direct contact between the third bent portion 2623 and the body portion 261 269). ≪ / RTI > The method according to claim 1,
Wherein the base portion further includes a second insulation portion (27) for preventing direct contact between the socket connection terminal and the base portion on a coupling path of the socket connection terminal among positions adjacent to the connection portion. 8. The method of claim 7,
Wherein a curved contact groove (271) having a radius of curvature larger than a radius of curvature of the socket connecting terminal is formed at a center side of the second insulating portion.

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