KR100807859B1 - Backlight module and connector thereof - Google Patents

Abstract

A backlight module and a connector thereof are provided to connect a lamp lead line electrically with a converter unit through the connector by directly inserting the lamp lead line into the connector, thereby solving problems such as heat generation, soldering joints, re-processing and high manufacturing costs. An outlet(242) is installed in the front of a case(241). On the front of the outlet, an insertion hole(242a) is installed. On the rear, a stop tank is installed. An elastic coupling piece(243) is installed within the outlet and comprises a main body(243a) and an elastic arm(243b) bent and prolonged from one end of the main body. A fixing piece(244) is installed within the outlet and includes a narrow path between the fixing piece and the elastic coupling piece. A cover(245) is installed in the rear of the case, and has a knock-out block(245a) corresponding to the stop tank in its front. A conductive terminal(246) is installed in the cover. An elastic member(247) has both ends. One end is contacted with the rear of the outlet. The other end is contacted with the front of the cover.

Description

Backlight Modules and Their Connectors {BACKLIGHT MODULE AND CONNECTOR THEREOF}

1 is a view showing a connection method between a lamp and a current transformer in a conventional backlight module,

2 is a side view showing a preferred embodiment of a backlight module and a connector according to the present invention;

3 is a perspective view showing a preferred embodiment of the backlight module and the connector according to the present invention;

4A is an exploded perspective view showing a preferred embodiment of a connector disposed in a backlight module according to the present invention;

4B is a partially assembled perspective view showing a preferred embodiment of a connector disposed in a backlight module according to the present invention;

4C is an assembled perspective view showing a preferred embodiment of the connector disposed in the backlight module according to the present invention;

4D is a perspective cross-sectional view showing a preferred embodiment of a connector disposed in a backlight module according to the present invention.

<Description of the symbols for the main parts of the drawings>

100: backlight module

110: lamp

120: lamp lead wire

130: wire rod

240: connector

150: current transformer

152: socket

160: solder

200: backlight module

210: control circuit board

220: current transformer unit

230: lamp

232: lamp lead wire

240: connector

241: Case

241a: through hole

241b: storage space

241c: Combined Hook

241d: protective arm

241e: Combined hole

242: outlet

242a: insertion hole

242b: contact surface

242c: Stop jaw

242d: first limit group

242e: second limit group

242f: first recessed groove

242g: slot

243: elastic bonding piece

243a: main body

243b: elastic arm

243c: flapper

243d: contact piece

244: fixing piece

244a: passage

245: cover

245a: knockout block

245b: combined hook

245c: second recessed groove

245d: penetrating tank

246: conductive terminal

247: elastic member

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backlight module and a connector thereof, and more particularly to a backlight module and a connector of which a lamp lead of a lamp is electrically connected to a current transformer directly through a connector.

1 is a view showing a connection method between a lamp and a current transformer in a conventional backlight module. Referring to FIG. 1, the backlight module 100 mainly includes a lamp 110, a lamp lead wire 120, a wire rod 130, a connector 140, and a current transformer 150. Among them, since the lamp lead wire 120 disposed at one end of the lamp 110 is electrically connected to the wire rod 130 by a welding method, solder 160 is present between the lamp lead wire 120 and the wire rod 130. The wire rod 130 is inserted into the corresponding socket 152 of the current transformer 150 through the connector 140 of the terminal, the lamp 110 is electrically connected to the current transformer 150 through the wire rod 130. .

The high voltage generated by the two conversions of the current transformer 150 is applied to one end of the lamp 110 through the transmission order of the connector 140, the wire rod 130, the solder 160, and the lamp lead wire 120. The potential difference generated by the voltage applied across the lamp 110 excites the discharge gas charged in the lamp 110 to emit ultraviolet light, and the ultraviolet light is applied to the tube wall of the lamp 110. When irradiated to visible light can be irradiated.

However, the connection method between the lamp and the current transformer in the backlight module has the following problem to be solved.

(1) Heat dissipation problem: Although both the lamp lead wire and the wire rod are made of copper having excellent conductivity and thermal properties, the thermal and thermal properties generated during operation of the lamp are deteriorated due to the deterioration of the conductive and thermal properties due to the solder connecting them. ) Are concentrated in front of the solder joint and can not be effectively excluded, affecting the service life of the lamp.

(2) Solder joint problems are many: Because welding is completed by manual method, manpower and time are required in manufacturing, assembly discomfort and manufacturing cost are high, and problems such as temporary welding, weld strength and tension, disconnection, etc. It is very prone to occur, affecting the yield of the backlight module, and also has a problem that it is difficult to rework the solder joint.

(3) High cost: The original length of the lamp lead wire is between about 10mm ~ 15mm. To weld the lamp lead wire and wire rod, it is necessary to cut it to 2mm ~ 3mm, which causes waste of material. In addition, when performing the connection between the lamp and the current transformer in the above manner, it is necessary to separately use a single stage wire as a bridge for electrical connection between the lamp and the current transformer. It is a burden.

(4) The power supplied by the current transformer is relatively high: The high voltage supplied by the current transformer can be transmitted to the lamp lead through the wire rod and the solder, but the high voltage generated by the current transformer is passed through the wire and the solder. ), The manufacturing cost increases because the current transformer can supply the desired voltage to one end of the lamp only by supplying higher power.

For this reason, it was a big problem to improve the connection method between the lamp and the current transformer of the conventional backlight module, and to solve the problem of the said heat dissipation, a solder joint problem, a manufacturing cost, etc. to become high.

Accordingly, the creator of the present invention was able to provide the present invention to effectively solve the conventional problems through a reasonable design according to the operation of the academic theory, and to perform the observation and research based on a long time rich practical experience.

It is an object of the present invention to provide a connector suitable for inserting a wire rod therein and capable of electrically connecting the wire rod with an electronic component through the connector.

Another object of the present invention has been brought about when the lamp lead wire of the lamp is electrically connected directly to the connector, and the lamp is electrically connected to the current transformer unit via the connector to connect the lamp lead wire and the wire rod by welding in a conventional backlight module. Provides a backlight module to solve the problem.

In order to achieve the above object, the present invention provides a connector suitable for inserting a wire rod, the case; An outlet installed at the front of the case, at an insertion hole at the front, and at the rear of the case; An elastic coupling piece installed in the outlet, the elastic coupling piece having a main body and an elastic arm formed by refraction extending from one end of the main body; A fixing piece installed in the outlet and having a narrow passage formed therebetween; A cover installed at the back of the case and having a knockout block corresponding to the stop jaw at the front; A conductive terminal provided on the cover; An elastic member having both ends, one end of which is in contact with the rear of the outlet, and the other end of which is in contact with the front of the cover; When the wire rod is inserted into the outlet, the elastic member is compressed. At this time, the knockout block of the cover is inserted into the stop jaw at the rear of the outlet, and the main body is brought into close contact with the elastic arm by contacting one end surface of the main body of the elastic coupling piece. The wire rod passes through the passage and contacts one side of the conductive terminal, and when the elastic member recovers, the wire rod is pinched in a passage between the elastic coupling piece and the fixing piece.

In order to achieve the above object, the present invention provides at least a control circuit board; A current transformer unit disposed on the control circuit board; A lamp having at least one lamp lead; An elastic coupling piece having a case, an outlet installed at the front of the case, an insertion hole installed at the front, and a stop jaw installed at the rear, a resilient arm installed in the outlet and refracted from the one end of the main body, and the outlet; A cover having a narrow passage formed between the elastic coupling piece and the elastic coupling piece, a cover having a knockout block disposed at the rear of the case and having a knockout block at the front thereof corresponding to the stop jaw; It has both ends but one end is in contact with the rear of the outlet and the other end is in contact with the front of the cover, the elastic member is compressed when the wire is inserted into the outlet, the knockout block of the cover is the back of the outlet The wire is inserted into the stopper and at the same time contacting the end surface of the main body of the elastic coupling piece to bring the main body closer to the elastic arm, the wire rod passes through the passage and contacts one side of the conductive terminal, and when the elastic member recovers, the wire rod is It provides a backlight module comprising a connector that is fitted in the passage between the elastic coupling piece and the fixing piece.

In a preferred embodiment the lamp is a cold cathode fluorescent lamp.

Reference is made to the following detailed description of the invention and the accompanying drawings, in order to provide a better understanding of the features and technical details of the invention. It is not limited to.

2 and 3 illustrate a backlight module and a connector according to the present invention. 2 and 3, the backlight module 200 mainly includes a control circuit board 210, a current transformer unit 220, a lamp 230, and a connector 240. Among them, the current transformer unit 220 is disposed on the control circuit board 210 and electrically connected to the control circuit board 210. One end of the lamp 230 is provided with a lamp lead wire 232, in this embodiment, the lamp 230 is a cold cathode fluorescent lamp. The connector 240 is disposed on the control circuit board 210 and electrically connected to the control circuit board 210, and the lamp lead wire 232 of the lamp 230 is directly connected to the connector 240. The lamp 230 is electrically connected to the current transformer unit 220 through the connector 240 and the control circuit board 210. As described above, since the current transformer unit 220 disposed on the control circuit board 210 is directly and electrically connected to the lamp 230, there is no need to mediate signal transmission with wire and solder as in the conventional backlight module. Difficulties, problems with solder joints, and increased manufacturing costs can be solved.

4A to 4D are exploded perspective views, partially assembled perspective views, assembled perspective views, and perspective cross-sectional views respectively showing preferred embodiments of a connector disposed in a backlight module according to the present invention. As shown in FIG. 4A, a wire rod may be inserted into the connector 240, and the wire rod may be electrically connected to an electronic component (not shown) through the connector 240. In this embodiment, only the lamp lead wire 232 of one end of the lamp 230 will be described as the wire rod. The connector 240 disposed in the backlight module according to the present invention includes a case 241, an outlet 242, an elastic coupling piece 243, a fixing piece 244, a cover 245, and a conductive terminal 246. ) And an elastic member 247.

The case 241 includes a through hole 241a, a storage space 241b, two coupling hooks 241c, two protective arms 241d, and two coupling holes 241e. The through hole 241a penetrates toward the front of the case 241. The storage space 241b is formed in the case 241. Two coupling hooks 241c are installed at opposite bottom edges of the case 241 and are coupled to the control circuit board 210. Two protective arms 241d protrude from both front surfaces of the case 241 facing each other. Two coupling holes 241e are provided on opposite side walls of the case 241.

The outlet 242 is installed at the rear of the case 241, the front of the outlet 242 penetrates the through hole 241a of the case 241, and a part of the outlet 242 is the storage space ( 241b). The outlet 242 includes an insertion hole 242a, a contact surface 242b, a stop jaw 242c, a first limit jaw 242d, and a second limit jaw 242e. And a first concave groove 242f and a slot 242g. The insertion hole 242a is installed through the front end of the outlet 242. The contact surface 242b is formed at the front outer circumference of the outlet 242 and is in contact with the wall surface inside the case 241, and is installed adjacent to the through hole 241a. As shown in FIG. 4B, the stop jaw 242c is recessed behind the outlet 242. The first limit jaw 242d is recessed in the rear of the outlet 242, adjacent to the stop jaw 242c, and an elastic coupling piece 243 is inserted therein. The second limit tank 242e is recessed at the rear of the outlet 242 and a fixing piece 244 is inserted therein. The first concave groove 242f is provided behind the outlet 242 and also corresponds to one end of the elastic member 247. As shown in FIG. 4A, the slot 242g is installed at the front end of the outlet 242 to communicate with the insertion hole 242a, and the lamp lead wire 232 of the lamp 230 is connected to the outlet 242. Depart from

As shown in FIG. 4B, the elastic coupling piece 243 is installed in the first limit bath 242d of the outlet 242, and the elastic coupling piece 243 is the main body 243a and the elastic arm 243b. ), A flapper 243c and a contact piece 243d. The elastic arm 243b extends refractively from one end of the main body 243a. The flapper 243c is refracted downward from the ceiling surface of the main body 243a. The contact piece 243d extends outward from the side edge of the main body 243a.

The fixing piece 244 is installed in the second limit bath 242e of the outlet 242, and a narrow passage 244a is formed between the upper fixing piece 244 and the elastic coupling piece 243. The passage 244a communicates the first limit bath 242d with the second limit bath 242e. The free end of the flapper 243c is extended into the passage 244a to secure the lamp lead wire 232 so as to stably be inserted into the insertion hole 242a.

As shown in FIG. 4A, the cover 245 is installed at the rear of the case 241. The cover 245 includes a knockout block 245a, two engaging hooks 245b, a second concave groove 245c, and a through tub 245d. The knockout block 245a corresponds to the stop jaw 242c (as shown in Fig. 4B), and the top of the knockout block 245a is a contact surface with a gradient (symbol not shown), The contact surface corresponds to the outer surface of the contact piece 243d (as shown in Fig. 4B). Coupling hooks 245b are installed on opposite sides of the cover 245, and each of the coupling hooks 245b is coupled to each coupling hole 241e of the case 241. The second concave groove 245c is provided in front of the cover 245 and corresponds to the other opposite side of the elastic member 247. The through tub 245d is also provided in front of the cover 245 and corresponds to one end of the conductive terminal 246.

The conductive terminal 246 is installed in the cover 245. One end of the conductive terminal 246 penetrates and passes through the through tub 245d, and the other end of the conductive terminal 246 is exposed to the bottom of the case 241 to be electrically connected to the control circuit board 210. Connected.

The elastic member 247 has both ends, one end of which is in contact with the rear of the outlet 242, the other end is in contact with the front of the cover 245. In this embodiment, the elastic member 247 is a compression spring. Both ends of the elastic member 247 are coupled to the first concave groove 242f (as shown in FIG. 4B) of the outlet 242 and the second concave groove 245c of the cover 245, respectively. .

As shown in FIG. 4D, the lamp 230 is inserted into the insertion hole 242a of the outlet 242, and the elastic member 247 is compressed by the outlet 242 during assembly. The knockout block 245a of the cover 245 is inserted into the rear stop jaw 242c of the outlet 242 while contacting the outer surface of the contact piece 243d of the elastic engagement piece 243 to contact the main body 243a. The lamp lead wire 232 of the lamp 230 contacts the one side of the conductive terminal 246 after passing through the passage 244a. When the elastic member 247 is restored, the lamp lead wire 232 is caught in the passage 244a between the elastic coupling piece 243 and the fixing piece 244, and the plug of the elastic coupling piece 243 is removed. The wrapper 243c fixes the lamp lead wire 232 to stably insert the lamp lead wire 232 into the insertion hole 242a. Accordingly, the lamp 230 is directly electrically connected to the connector 240, and the lamp 230 is electrically connected to the control circuit board 210 through the connector 240. In addition, the lamp 230 is electrically connected to the current transformer unit 220 through the connector 240 and the control circuit board 210.

As described above, the present invention provides a backlight module and a connector for directly connecting the lamp lead wire of the lamp to the connector and electrically connecting the current transformer unit through the connector. In such a backlight module, the lamp lead wire is a lamp of a conventional backlight module. Unlike lead wires, wires and solders do not need to be electrically connected to the current transformer unit. Therefore, the present invention can solve problems of heat dissipation, solder joint, reworking, and high manufacturing cost of conventional backlight modules. Solve.

However, each of the specific configurations disclosed above is merely an embodiment for enabling the present invention, and not for limiting the features of the present invention. Those skilled in the art can appropriately change the present invention or implement equations, which are included within the scope of the present invention.

Claims (6)

In a connector suitable for inserting wire rods, A case; An outlet installed at the front of the case, at an insertion hole at the front, and at the rear of the case; An elastic coupling piece installed in the outlet, the elastic coupling piece having a main body and an elastic arm formed by refraction extending from one end of the main body; A fixing piece installed in the outlet and having a narrow passage formed therebetween; A cover installed at the back of the case and having a knockout block corresponding to the stop jaw at the front; A conductive terminal provided on the cover; An elastic member having both ends, one end of which is in contact with the rear of the outlet, and the other end of which is in contact with the front of the cover; When the wire rod is inserted into the outlet, the elastic member is compressed. At this time, the knockout block of the cover is inserted into the stop jaw at the rear of the outlet, and the main body is brought into close contact with the elastic arm by contacting one end surface of the main body of the elastic coupling piece. The wire rod passes through the passage and contacts one side of the conductive terminal, and when the elastic member recovers, the wire rod is pinched in a passage between the elastic coupling piece and the fixing piece. The method of claim 1, The outlet has a first limit jaw provided at the rear of the outlet for inserting the elastic coupling piece, and a second limit jaw provided at the back of the outlet for inserting the fixing piece, and the passage has the first limit jaw and the second limit jaw. A connector for communicating a jaw. The method of claim 1, And the outlet is installed at a front end of the outlet and has a slot communicating with the insertion hole. The method of claim 1, A flapper is installed in the main body of the elastic coupling piece, and a free end of the flapper is inserted into the passage. The method of claim 1, A contact piece protrudes from the main body of the elastic coupling piece, and a front end of the knockout block is a gradient contact surface, and the contact surface corresponds to an outer surface of the contact piece. A control circuit board; A current transformer unit disposed on the control circuit board; A lamp having at least one lamp lead; An elastic coupling piece having a case, an outlet installed at the front of the case, an insertion hole installed at the front, and a stop jaw installed at the rear, a resilient arm installed in the outlet and refracted from the one end of the main body, and the outlet; A cover having a narrow passage formed between the elastic coupling piece and the elastic coupling piece, a cover having a knockout block disposed at the rear of the case and having a knockout block at the front thereof corresponding to the stop jaw; It has both ends but one end is in contact with the rear of the outlet and the other end is in contact with the front of the cover, the elastic member is compressed when the wire rod is inserted into the outlet, the knockout block of the cover stops behind the outlet The wire is inserted into the jaw and is in contact with one end surface of the main body of the elastic coupling piece to bring the main body to the elastic arm, and the wire rod passes through the passage to contact one side of the conductive terminal, and when the elastic member is recovered, the wire rod is the elastic member. And a connector fitted into a passage between the coupling piece and the fixing piece.

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