CN100456106C - Backlight structure - Google Patents

Abstract

The invention discloses a backlight structure comprising a frame, a circuit board and a connector. An opening is formed on the frame. A through hole is formed on the circuit board, and the through hole and the opening are located at the same axial position. The connector through hole and the through hole protrude from the surface of the frame. In addition, a backlight structure includes an insulating part, a frame, a circuit board, a first conductive part and a second conductive part. A first opening is formed on the insulating member. A second opening is formed on the frame. A through hole is formed on the circuit board, and the first opening, the second opening and the through hole are located at the same axial position. The first conductive element protrudes from the surface of the insulating element through the first opening and the second opening, and the second conductive element is electrically connected to the first conductive element through the first opening, the second opening and the through hole.

Description

Backlight structure

technical field

The present invention relates to a backlight structure, in particular to a backlight structure with a combination of a connector and a conductive element or a combination of a first conductive element and a second conductive element.

Background technique

FIG. 1 is a schematic diagram of a backlight structure in the prior art, FIG. 2 is an enlarged view of the section A-A of FIG. 1 , and FIG. 3 is an exploded view of a lamp tube and a fixing member in the prior art. Please refer to FIG. 1 , FIG. 2 and FIG. 3 at the same time. The prior art backlight structure 20 includes a frame 201 , a circuit board 202 , a fixing member 203 , a supporting seat 204 and a connector male end 205 . Each component is described as follows:

The frame 201 has a hole 210; the circuit board 202 has a connector female end 206, and is arranged below the frame 201; the fixing member 203 has a power line channel 211, a lamp tube placement groove 212 and at least one groove 213, the power supply The wire channel 211 and the tube slot 212 communicate with each other, and the groove 213 is disposed on the side of the fixing member 203 ; In addition, the lamp tube 207 is placed in the lamp tube placement groove 212 of the fixing member 203 .

The assembly process of the backlight structure of the prior art is as follows:

First, the fixing part 203 is passed through the hole 210 of the frame 201, and the groove 213 is tightly fitted with the frame 201, so that the fixing part 203 is fixed on the frame 201, and then the power cord 208 of the connector male end 205 of the circuit board 202 After passing through the power cord channel 211 of the fixing member 203 and passing through the lamp tube placement groove 212, the power cord 208 is joined to the lamp tube 207 by welding technology to form an electrical connection, and the welded lamp tube 207 is placed in the lamp tube placement groove 212.

In addition, the connector male end 205 is electrically connected to the connector female end 206 to complete a series of electrical connections between the lamp tube 207 and the circuit board 202 .

Finally, the circuit board 202 is fixed on the frame 201 through the support base 204 disposed between the circuit board 202 and the frame 201 and locked with screws 209 , and then the assembly process of the prior art backlight components is completed.

However, in the existing backlight structure, the assembly and disassembly of the circuit board, frame and lamp must go through complicated assembly procedures and manual welding techniques, thus deriving many cost, labor and technical problems, and seriously reducing the backlight structure. assembly and production efficiency.

Contents of the invention

The technical problem to be solved by the present invention is to provide a backlight structure that is easy to assemble and disassemble, which can simplify assembly procedures, reduce costs and effectively improve production efficiency.

To achieve the above object, the present invention provides a backlight structure, which includes a frame, a circuit board and a connector. An opening is formed on the frame. A through hole is formed on the circuit board, and the through hole and the opening are located at the same axial position. The connector through hole and the through hole protrude from the surface of the frame.

Moreover, to achieve the above object, the present invention provides a backlight structure, which includes an insulating element, a frame, a circuit board, a first conductive element and a second conductive element. A first opening is formed on the insulating member. A second opening is formed on the frame. A through hole is formed on the circuit board, and the first opening, the second opening and the through hole are located at the same axial position. The first conductive element protrudes from the surface of the insulating element through the first opening and the second opening, and the second conductive element is electrically connected to the first conductive element through the first opening, the second opening and the through hole.

Therefore, the backlight structure of the present invention uses a connector or a combination of the first conductive member and the second conductive member to simplify the complicated assembly process in the prior art, and replaces the electrical connection between the components in the prior art. The advanced welding technology can completely improve the problems of disassembly, assembly, welding, labor and cost, and then improve the overall assembly efficiency and production efficiency.

In order to make the above-mentioned objects, features, and advantages of the present invention more comprehensible, preferred embodiments are specifically cited below and described in detail with the accompanying drawings.

Description of drawings

FIG. 1 shows a schematic diagram of a backlight structure in the prior art;

FIG. 2 shows an enlarged cross-sectional view of A-A of the backlight structure of the prior art;

Fig. 3 shows the exploded view of the lamp tube and the fixture of the prior art;

Fig. 4 shows the schematic diagram of the first embodiment of the present invention;

Fig. 5 shows the first embodiment B-B sectional enlarged view of the present invention;

Figure 6 shows an overall exploded view of the first embodiment of the present invention;

Figure 7 shows an exploded view of the connector of the first embodiment of the present invention;

Fig. 8 shows the bottom schematic view of the first embodiment of the present invention;

Fig. 9 shows the schematic diagram of the second embodiment of the present invention;

Figure 10 shows an overall exploded view of the second embodiment of the present invention;

FIG. 11 shows an exploded view of the first conductive element and the second conductive element of the second embodiment of the present invention;

Fig. 12 shows a schematic diagram of the bottom of the second embodiment of the present invention;

Fig. 13 shows the combined diagram of the second embodiment of the present invention;

FIG. 14 shows an exploded view of the first conductive element and the second conductive element of the third embodiment of the present invention;

Fig. 15 shows the combined diagram of the third embodiment of the present invention;

FIG. 16 shows an exploded view of the first conductive element and the second conductive element of the fourth embodiment of the present invention.

Among them, reference signs:

current technology:

20: Backlight structure 201: Frame

202: Circuit board 203: Fixing parts

204: Support seat 205: Connector male end

206: Connector female end 207: Light tube

208: Power cord 209: Screw

210: hole 211: power line channel

212: Light tube placement groove 213: Groove embodiment of the present invention

30, 40: Backlight structure 301: Frame

302: circuit board 302a: bottom surface of circuit board

303: Connector 303a: Connector bottom

304: Conductive parts 305: Lamp tube

306: Through hole 307: Open hole

308: Clamping part 309: Penetrating part

310: Stopping part 311: Lamp placement slot

312: Conductive part engaging part 313: Conductive part placement slot

314: Positioning parts 401: Insulation parts

402: Frame 403: The first circuit board

403a: the bottom surface of the first circuit board 404, 504, 604: the first conductive member

405, 505, 605: the second conductive part 406: the first opening

407: Second opening 408: First through hole

409, 509: the second circuit board 409a: the surface of the second circuit board

410: Second through hole 411: Lamp tube

412, 512, 612: first clamping part 413, 513, 613: support

414, 514: the first clamped part 418, 518: the second clamping part

420, 617: stop part 421, 521: bottom

509b: side of the second circuit board 522, 618: holding part

615: The third clamping part 616: The second clamped part.

Detailed ways

4 is a schematic diagram of the first embodiment of the backlight structure of the present invention, FIG. 5 is an enlarged view of the B-B section of the first embodiment of the backlight structure of the present invention, and FIG. 6 is an exploded view of the first embodiment of the backlight structure of the present invention. Please refer to FIG. 5 and FIG. 6 at the same time. The backlight structure 30 of the present invention includes a frame 301 , a circuit board 302 and a connector 303 . An opening 307 is formed on the frame 301 , and a through hole 306 is also formed on the circuit board 302 and located below the frame 301 . The through hole 306 and the opening 307 are substantially located at the same axial position. The connector 303 passes through the through hole 306 and the opening 307 and protrudes from the surface of the frame 301 . In this embodiment, the connector 303 is preferably a plastic part, and the connector 303 has a conductive part 304 and at least one positioning part 314. The conductive part 304 is located inside the connector 303 and extends through the bottom of the connector 303 and the circuit. The board 302 is electrically connected, and the positioning member 314 extends from the bottom of the connector 303 and is attached to the bottom surface 302 a of the circuit board 302 .

FIG. 7 is an exploded view of the connector 303 of the first embodiment of the present invention, and FIG. 8 is a schematic bottom view of the first embodiment of the backlight structure of the present invention. Please refer to FIG. 7 and FIG. 8 at the same time. The connector 303 further has a lamp tube placement groove 311, at least one conductive member engaging portion 312 and a conductive member placement groove 313. The lamp tube placement groove 311 is located on the top of the connector 303, and the conductive member snaps The engaging portion 312 and the conductive element placement groove 313 are disposed on two sides of the light tube placement groove 311 , and the conductive element engaging portion 312 is located between the conductive element placement groove 313 and the light tube placement groove 311 . The conductive part 304 of the connector 303 has a clamping part 308, a through part 309 and a stop part 310. The clamping part 308 is located at the top of the conductive part 304. When the assembly is completed, the clamping part 308 will contact the engaging part 312 of the conductive part. , the stop portion 310 is located at the bottom end of the conductive member 304, when the clamping portion 308 is in contact with the engaging portion 312 of the conductive member, the stop portion 310 protrudes from the bottom 303a of the connecting portion 303, at this time the protruding stop portion can be 310 is bent, so when the assembly is completed, the stopper 310 will be attached to the bottom 302a of the circuit board 302, and the extension direction of the bent stopper 310 is preferably in line with the extension of the positioning member 314 of the connector 303 The directions are perpendicular to each other. The through portion 309 connects the clamping portion 308 and the blocking portion 310 , and the through portion 309 is located in the conductive part placement groove 313 when the assembly is completed. In this embodiment, the clamping portion 308 is preferably wave-shaped to increase the ability to clamp the lamp tube. However, the clamping portion 308 may also be, for example, arc-shaped, and the present invention does not limit the shape of the clamping portion 308 .

The assembly process of the backlight structure 30 of the present invention is as follows: Firstly, the stop portion 310 and the penetration portion 309 of the conductive element 304 are inserted through the conductive element placement groove 313 of the connector 303 in sequence, wherein the combined penetration portion 309 accommodates The stopper 310 penetrates the conductive part placement groove 313 and protrudes from the bottom 303a of the connector 303, and the clamping part 308 of the conductive part 304 is engaged with the conductive part of the connector 303 312 engage with each other, so that the conductive element 304 is fixed on the connector 303 .

In addition, the above-mentioned assembled connector 303 and conductive member 304 are sequentially passed through the opening 307 of the frame 301 and the through hole 306 of the circuit board 302, and attached to the After the circuit board 302, the stop portion 310 of the conductive member is bent and attached to the bottom surface 302a of the circuit board, and the bent stop portion 310 is formed using, for example, surface mount technology (Surface Mount Technology, SMT). Adhere closely to the bottom surface 302a of the circuit board, so that the conductive member 304 can be fixed on the circuit board 302 and form an electrical connection with the circuit board 302 .

Finally, the lamp tube 305 is placed in the lamp tube placement groove 311 of the connector 303, and the lamp tube 305 is clamped by the clamping portion 308 of the conductive member 304, so that the lamp tube 305 can pass through the clamping portion 308 of the conductive member 304 It is electrically connected with the circuit board 302 to complete the assembly process of a row of backlight components.

It can be seen from the above description that the backlight structure of the present invention uses a combination of connectors and conductive parts to simplify the complicated assembly process in the prior art, and replaces the soldering technology in the prior art through the electrical connection between components. Thoroughly improve the problems of disassembly, assembly, welding, labor and cost, and then improve the overall assembly efficiency and production efficiency.

FIG. 9 shows a schematic diagram of the second embodiment of the backlight structure of the present invention, and FIG. 10 shows an overall exploded view of the enlarged E-E section of the second embodiment of the backlight structure of the present invention. Please refer to FIG. 9 and FIG. 10 at the same time. In this embodiment, the backlight structure 40 includes an insulating member 401 , a frame 402 , a first circuit board 403 , a second circuit board 409 , a first conductive member 404 and a second conductive member 405 . Each component is described as follows: the insulator 401 is formed with a first opening 406, and the frame 402 is arranged under the insulator 401 and is formed with a second opening 407, and the first circuit board 403 is arranged under the frame 402, also A first through hole 408 is formed, and a second circuit board 409 is disposed above the insulator 401 and has a second through hole 410. The first through hole 408, the first opening 406 and the second opening 407 are substantially at the same axial position. The first conductive member 404 passes through the second through hole 410 , the first opening 406 and the second opening 407 from top to bottom, and protrudes from the surface of the insulating member 401 and the second circuit board 409 for clamping the lamp. 411, and is electrically connected with the lamp tube 411, the second conductive member 405 penetrates the first through hole 408 of the first circuit board 403 from bottom to top, the second opening 407 of the frame 402 and the first opening of the insulating member 401 406 , electrically connected to the first conductive member 404 . And the second conductive member 405 can be attached to the bottom surface of the first circuit board 403 by using the stop portion 420 extending from the bottom 421 (indicated in FIG. 11 ).

FIG. 11 shows an exploded view of the first conductive element 404 and the second conductive element 405 according to the second embodiment of the present invention. FIG. 12 shows a bottom schematic view of the second embodiment of the backlight structure of the present invention. Please refer to FIG. 11 and FIG. 12 at the same time, the first conductive member 404 has a first clamping portion 412 , a supporting portion 413 and a first clamped portion 414 . The first clamping portion 412 is located above the supporting portion 413 , and the first clamped portion 414 is located on two sides of the supporting portion 413 . The second conductive member 405 has a second clamping portion 418 extending upward from the bottom 421 . When the assembly is completed, the second clamping portion 418 is engaged with the outside of the first clamped portion 414 . In this embodiment, the second conductive member 405 is used to engage the first conductive member 404, and the first clamped portion 414 is preferably slightly protruded from the two sides of the support portion 413 to increase the contact between the first conductive member 404 and the second conductive member. 405 , for example, when the first conductive member 404 is used to engage the second conductive member 405 , the first clamped portion 414 of the present invention can slightly protrude toward the inside of the two sides of the support portion 413 . In addition, the lamp tube 411 (marked in FIG. 13 ) is disposed in the first clamping portion 412 . The blocking portion 420 extends outward from the bottom 421 , and when the second conductive member 405 passes through the first through hole 408 of the first circuit board 403 from bottom to top, the blocking portion 420 is attached to the bottom surface 403 a of the first circuit board 403 .

The assembly process of the backlight structure 40 of the present invention is as follows: First, the second conductive member 405 is passed through the first through hole 408 of the first circuit board 403 from bottom to top, and is attached to the first through hole 408 by using the stopper 420 . The bottom surface 403a of the circuit board, and the stop portion 420 is bonded to the bottom 403a of the first circuit board by, for example, surface mount technology (SMT), so that the second conductive member 405 can be fixed on the first circuit board 403, and with The first circuit board 403 is electrically connected.

Next, pass the first clamped portion 414 of the first conductive member 404 through the second through hole 410 of the second circuit board 409 from top to bottom, and bond the first conductive member 404 to the second through hole 410 of the second circuit board 409 by surface mount technology (SMT). The surface 409a of the second circuit board, wherein the first holding portion 412 and the supporting portion 413 of the first conductive member 404 are exposed above the second circuit board 409, and then the first held portion 414 of the first conductive member 404 is sequentially placed Pass through the first opening 406 of the insulator 401 and the second opening 407 of the frame 402 .

In addition, the first clamped portion 414 of the assembled first conductive member 404 is clamped by the second clamping portion 418 of the assembled second conductive member 405, so that the first conductive member 404 can be fixed on the second The conductive element 405 is electrically connected to the second conductive element 405 .

Finally, the lamp tube 411 is placed on the first conductive member 404, and the lamp tube 411 is clamped by the first clamping portion 412, so that the lamp tube 411 can be connected to the first conductive member 404 through contact with the first The circuit board 403 is electrically connected to complete the assembly procedure of the backlight structure, that is, to form the backlight module as shown in FIG. 13 .

It needs to be further explained here that, according to the needs of actual use, circuit wiring can be made on the second circuit board 409, or the second circuit board 409 is only a plain circuit board without circuit wiring and is only regarded as being used to conduct electricity with the first circuit board. In this case, the second circuit board 409 can use a hard block-shaped board such as a plastic board or an acrylic board. Of course, the user can also omit the second circuit board 409 , and directly form the first conductive element 404 on the insulating element 401 by using, for example, an injection embedding method, so as to simplify the assembly procedure and reduce the cost.

Figure 14 is an exploded view of the first conductive member 504 and the second conductive member 505 of the third embodiment of the present invention, and Figure 15 shows the combination diagram of the third embodiment of the present invention, please refer to Figure 14 and Figure 15 at the same time, the first conductive The piece 504 has a first clamping portion 512 , a supporting portion 513 and a first clamped portion 514 . The first clamping portion 512 is located above the supporting portion 513 , and the first clamped portion 514 is located on two sides of the supporting portion 513 . The second conductive member 505 has a second clamping portion 518 extending upward from the bottom 521. In this embodiment, the support portion 513 preferably has a fixing portion 522. When the first clamping portion 512 of the first conductive member 504 and the support The portion 513 is exposed above the second circuit board 509 , and the holding portion 522 is attached to the side 509 b of the second circuit board to enhance the positioning effect of the first conductive member 504 . Other parts of this embodiment are the same as those of the above-mentioned embodiments, and will not be repeated here.

FIG. 16 is another embodiment of the first conductive member 604 and the second conductive member 605 of the present invention. The first conductive member 604 has a first clamping portion 612 , a supporting portion 613 and a third clamping portion 615 . In this embodiment, the third clamping portion 615 is located inside the supporting portion 613 . The second conductive member 605 has a second clamped portion 616 and a blocking portion 617 . Wherein, when the first conductive member 604 is combined with the second conductive member 605, the third clamping portion 615 of the first conductive member 604 engages with the periphery of the second clamped portion 616 of the second conductive member 605 and is electrically connected. , and in this embodiment, the third clamping portion 615 of the first conductive member 604 is preferably wave-shaped, and the second clamped portion 616 is preferably cylindrical, so as to increase the clamping capacity of the first conductive member 604 . Of course, the third clamping portion 615 of the first conductive member 604 can also be, for example, arc-shaped, and the second clamped portion 616 can also be, for example, a rod-shaped body, as long as the second clamped portion 616 can be connected to the first conductive member. The third clamping portion 615 of 604 is engaged (or substantially in contact with each other) and then electrically connected. The present invention does not limit the shape of the third clamping portion 615 or the second clamped portion 616 . When the assembly is completed, the blocking portion 617 is located below the second clamped portion 616 and attached to the bottom surface of the first circuit board 603 (please refer to other embodiments). Other parts of this embodiment are the same as those of the above-mentioned embodiments, and will not be repeated here.

As can be seen from the above, the backlight structure of the present invention uses the combination of the first conductive member and the second conductive member to simplify the complicated assembly process in the prior art, and replace the soldering technology in the prior art through the electrical connection between components , Thoroughly improve the problems of disassembly, assembly, welding, labor and cost, and then improve the overall assembly efficiency and production efficiency.

Certainly, the present invention also can have other various embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these Corresponding changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (6)

1. A backlight structure, characterized in that, comprising: a frame with at least one opening formed thereon; a circuit board, located below the frame, and at least one through hole is formed on it, and the through hole and the opening are located at the same axial position; and At least one connector passes through the opening and the through hole and protrudes from the surface of the frame, and is electrically connected to the circuit board; the connector further includes: a conductive element, the conductive element is located inside the connector and extends through the bottom of the connector to be electrically connected to the circuit board; A light tube placement slot, at least one conductive piece placement slot and at least one conductive piece engaging part, the light tube placement slot is used to place a light tube, the conductive piece placement slot is located on both sides of the light tube placement slot, the conductive The part engaging part is located between the conducting part placing groove and the light tube placing groove. 2 . The backlight structure according to claim 1 , wherein the connector has at least one positioning piece, the positioning piece extends from the bottom of the connector and is attached to the circuit board. 3. The backlight structure according to claim 1, wherein the conductive member has a clamping portion, a stopper portion and a through portion, the clamping portion is located at the top of the conductive member and engages with the conductive member The contact part is used to clamp the lamp tube. The stop part is located at the bottom end of the conductive part and is attached to the circuit board. The through part connects the clamp part and the stop part and is located in the slot. 4 . The backlight structure according to claim 3 , wherein the clamping portion has a wave shape or an arc shape. 5 . The backlight structure according to claim 3 , wherein the extending direction of the blocking portion and the extending direction of the positioning member are perpendicular to each other. 6. The backlight structure according to claim 1, wherein the connector is a plastic part.

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