TW201305483A - Electrical connection structure of LED lamp - Google Patents

Abstract

This invention provides an electrical connection structure of an LED lamp disposed between circuit boards at different planes in an LED lamp for being used by an LED lamp with different light emission surfaces. The electrical connection structure comprises a first substrate formed by conductors and a second substrate pivoted with the first substrate. The pivotability between the first and second substrates allows electrical connection between circuit boards at different planes without the presence of conductive wires. Thus, this invention can enable the lamp to produce more stereoscopic light source and achieve better manufacturing speed and stable structures. In addition, the thermal tolerance and heat dissipation effect of the lamp can be further enhanced, so as to make the lamp particularly suitable for vehicle lamps with a variety of appearances.

Description

LED lamp electrical connection structure

The invention relates to an electrical connection technology of a light-emitting device, in particular to a circuit board disposed in different planes of an LED lamp, so that the LED lamp can exhibit an electrical connection structure of a multi-face light source.

Conventional LED warning or lighting fixtures are used to interpose or glue multiple LEDs on a circuit board to utilize multiple LEDs to create large-area multi-point source warning or illumination effects.

In recent years, the functions of LED warning and lighting have gradually matured in the automobile and locomotive industries. In addition to the overall visual image presented by the vehicle body, the design of the illumination and warning angle is more and more complicated.

For example, a multi-point array light source with two or more faces, a multi-point light source with a step shape, a multi-point light source with a spherical shape, and even a side strip-shaped irregular multi-point light source used for an auxiliary lamp surrounding the outer ring of the main lamp .

Due to the implementation of the LED, it must be erected, fixed on the circuit board or the reflector to obtain the positioning effect, and the power is obtained through the circuit board; if multiple LEDs are to be arranged at different angles or steps, then a plurality of pieces must be set. The circuit boards located in different planes (different angles or stepped arrangement) adjust the angle of the light source, or use the wires to connect the LEDs of different angles one by one to achieve the desired positioning effect, and let the LEDs obtain The power required to operate.

As shown in the first and second figures, the LEDs 100 are connected to the sockets 102. The sockets 102 are pre-configured to be held in the reflector 103. The upper clamping structure is connected to each other by the wires 104, and then the sockets 102 are respectively mounted on the reflector 103, and finally all the sockets 102 are electrically connected to the circuit by the wires 104. On the board 105.

It can be seen from the above-mentioned assembly manner that the manner in which the wire 104 is inserted into the socket 102 in series must obviously be manually operated, which is quite time-consuming and labor-intensive. In particular, between the wire 104 and each of the sockets 102, it is necessary to manually weld one by one. Not only the production speed is slow, but also a lot of labor costs are incurred, and there are problems such as wire chaos and difficulty in soldering to affect the heat dissipation of the lamp.

Another conventional technique, as shown in the third figure and the domestic patent M316193, is to form a stepped fixing seat 106 in accordance with the required shape, and to press a plurality of metal conductive sheets 107 into the shape of the stepped fixing seat 106. The LEDs 101 are soldered and fixed on the metal conductive sheets 107, and the series connection between the LEDs 101 can be completed by the metal conductive sheets 107.

The above-mentioned luminaire can complete the assembly of the LEDs 101 by the fixing base 106 and the metal conductive sheet 107, which can save man-hours and shorten the process. However, the fixing base 106 must be integrally formed by plastic injection, and can only be used for the specific styling lamps. When used in the manufacture of lamps of various shapes at the same time, the problem of high mold opening cost is encountered, and the metal conductive sheet 107 must also be integrally stamped and formed by a steel mold, compared with the above-mentioned way of using the wires, in terms of manufacturing cost. Adding a large amount of mold opening costs does not have economic advantages.

In view of the shortcomings of the above two conventional techniques, the inventors have researched and developed inventions for LED lamp connection technology; in the development process, the first problem to be overcome is the wire and the mold problem, and it is expected that the mold is not required to be used and the wire is used. In the case of the desired shape and position, a plurality of LEDs are positioned on the circuit board and the electrical connections of the LEDs are completed. Therefore, the inventors have designed at least two structures in order to achieve the above effects: as shown in the fourth figure. First, the corresponding electrical pin 108 and the groove 109 are directly extended on the circuit board 105. When combined, the LEDs 101 are first disposed on each circuit board 105, and then the circuit boards 105 are arranged in a desired step shape, and After the electrical pins 108 extending from each of the circuit boards 105 are fitted into the recesses 109 of the other circuit board 105, the electrical pins 108 and the recesses 109 are soldered, so that the circuit board 105 can be matched. The shapes are arranged and the electrical connections of the LEDs 101 are completed.

The advantage of the above manner is that the circuit board 105 extends the electrical pin 108 and the recess 109 as a technically easy and cost-effective cutting process, and the LED 101 can be fixed on the circuit board 105 by surface adhesion, except during the assembly process. In addition to opening the mold, it also eliminates the trouble of using wires or metal conductive sheets.

However, in the above process, the position of the electrical pin 108 and the recess 109 extending from the circuit board 105 must be arranged in accordance with the arrangement of the circuit boards 105 to a desired fixed position. If the shape of the circuit board 105 is slightly changed, it is necessary to redesign the electrical. The pins 108 and the grooves 109 are not applicable to the lamps of different shapes, and the angle between the electrical pins 108 and the grooves 109 of each of the two circuit boards 105 must be manually soldered. Therefore, there is still considerable room for improvement in design.

As shown in the fifth figure, in order to solve the problem that the electrical pins and the grooves are disposed between the respective circuit boards, the inventors further design an external conductive positioning piece 110; the conductive positioning piece 110 has a bent shape, one end It can be soldered and positioned on one of the circuit boards 105, and the other end can be soldered and positioned on the adjacent circuit board 105. By bending the angle of the conductive positioning piece 110, the plurality of circuit boards 105 can be positioned and formed. The stepped shape is required, and the respective circuit boards 105 and the LEDs 101 provided on the circuit board 105 are electrically connected.

Since the conductive positioning piece 110 is simple in shape, it can be simply punched at an angle, in addition to overcoming the limitation of the position of the electric pin 108 and the groove 109 in the fourth figure, and compared with the foregoing The three drawings and the domestic patent M316193 structure do not require a fixed seat for injection molding, so the practicality is greatly improved.

Although the conductive positioning piece 110 is low in cost, the disadvantage is that the angle after stamping can not be adjusted, even if the production is easy, if the LED angle of the lamp is changed, the fine adjustment can not be performed immediately, and the bending angle will be When the conductive positioning piece 110 is soldered between the two circuit boards 105, there is still a problem of difficulty in manual soldering, and thus the design is still not perfect.

The main object of the present invention is to provide an LED lamp electrical connection structure, so that the LED lamp can present a three-dimensional light source, and can obtain a better manufacturing speed and a stable electrical connection structure, and can further improve the heat resistance of the lamp. The effect of heat dissipation.

The LED lamp electrical connection structure of the present invention is disposed between the circuit boards of different planes in the LED lamp, and comprises: a first substrate, which is composed of a conductor, and one end of which is provided with a first electrical connection end connected to the circuit board The other end is provided with a first pivoting portion; and a second substrate is formed by a conductor, one end of which is provided with a second electrical connection end connected to the other circuit board, and the other end of the second substrate is provided with a second a pivoting portion, the second pivoting portion is pivotally connected to the first pivoting portion to enable relative pivoting between the first substrate and the second substrate, so that the two circuit boards are electrically positioned when they are positioned on different planes The connection, in turn, causes the LED luminaire to exhibit a stereoscopic light source effect.

In implementation, the circuit board is respectively provided with a soldering hole, and the first and second electrical connecting ends are respectively provided with corresponding engaging portions, and the engaging portion is embedded in the soldering hole, thereby facilitating soldering positioning, and A better adhesion between the substrate and the second substrate and the corresponding two circuit boards can be achieved.

Alternatively, solder paste is respectively disposed on the soldering position of the circuit board, so that the first and second electrical connecting ends are directly soldered and fixed by the SMT technology (surface adhesion technology) through the tin furnace, so that the process can be quickly completed by an automated process.

In addition, by the relative pivoting between the first substrate and the second substrate, when connecting two circuit boards, whether using conventional welding or SMT technology, the first plane can be operated first, and then The two boards are bent into the desired angle with the shape of the lampshade, thereby greatly increasing the speed of manufacturing.

In the implementation, the first pivoting portion and the second pivoting portion are butted hollow cylindrical bodies, and are connected in series between the first pivoting portion and the second pivoting portion by a rotating shaft having a conductive effect. The first pivoting portion and the second pivoting portion have a stable connection, a pivoting, and a conductive effect.

The first pivoting portion and the second pivoting portion may also be directly pivoted crimping structures, so that the first pivoting portion and the second pivoting portion are provided with simple and rapid connection, pivoting and conductive effects. .

The circuit board is provided with an LED, which is a surface-adhesive LED (SMD LED) or a plug-in type LED. When the plug-in type LED is used, the circuit board is further provided with a plurality of sockets for facilitating plugging and unplugging of the plug-in type LEDs.

The luminaire is a vehicular luminaire to enhance the durability of the luminaire by utilizing the unique connection, pivoting and conducting effects of the electrical connection of the present invention, so that the luminaire can be used under more severe environmental conditions.

In addition, the LED lamp electrical connection structure of the present invention provides another similar technical means, and is disposed between the circuit boards of different planes in the LED lamp to achieve the effect of electrical connection, including: a first The substrate is composed of a conductor, one end of which is provided with a first electrical connection end connected to the circuit board, and the other end is provided with a first pivoting portion; a second substrate is formed by a conductor, one end of which is connected to the other a second electrical connection end of the circuit board, the second end of the second substrate is provided with a second pivoting portion; and a relay substrate is formed by the conductor, and one end thereof is provided with a pivotal connection with the first pivoting portion The third pivoting portion has a fourth pivoting portion pivotally connected to the second pivoting portion.

Thereby, the circuit boards arranged in a stepwise manner or having a high and low drop difference can be electrically connected to the first substrate and the second substrate, respectively, and the first substrate and the second substrate are made by the longitudinal extension effect of the relay substrate. Electrical connection.

In implementation, the first pivoting portion and the third pivoting portion, the second pivoting portion and the fourth pivoting portion are abutting hollow cylindrical bodies, and between the first pivoting portion and the third pivoting portion The second pivoting portion and the fourth pivoting portion are respectively connected in series by a rotating shaft having a conductive effect, so that the first pivoting portion and the third pivoting portion, the second pivoting portion and the fourth pivoting portion There is a solid connection, pivoting and electrical conduction between the parts.

Alternatively, a beading structure is directly pivoted between the first pivoting portion and the third pivoting portion, and a crimping structure is directly pivoted between the second pivoting portion and the fourth pivoting portion. A simple and rapid connection, pivoting and conducting effect between the pivoting portion and the third pivoting portion and between the second pivoting portion and the fourth pivoting portion.

Compared with the prior art, the implementation of the invention has the advantages that the luminaires of the non-planar multi-point light source can be more easily modularized and assembled, and the circuit boards of different planes can be electrically connected without the wire arrangement, so that The luminaire exhibits a more stereoscopic light source effect; in addition to obtaining a better manufacturing speed and a stable structure, the luminaire can further improve the heat resistance and heat dissipation effect of the luminaire, and eliminate the setting of the conventional wire.

Hereinafter, in accordance with the technical means of the present invention, an embodiment suitable for the present invention will be listed and described with reference to the following:

Please refer to the perspective view and the perspective exploded view of the LED lamp of the first embodiment of the present invention shown in the sixth and seventh figures. The luminaire 100 is a vehicular luminaire 100, wherein the luminaire 100 has at least two circuit boards 10 on different planes, the edges of the two circuit boards 10 are adjacent to each other, and an angled arrangement is provided. The electrical connection structure 30 is disposed between the two circuit boards 10; in addition, the circuit board 10 is provided with a plurality of sockets 11 for plugging and fixing the plug-in type LEDs 20, respectively. For the surface-adhesive type component, it is not necessary to provide the socket 11.

Referring to the eighth and ninth drawings, a side view and a three-dimensional external view of the first embodiment of the present invention are disclosed. The figure shows that the LED lamp electrical connection structure 30 is disposed between the circuit boards 10 of different planes in the LED lamp. It comprises a first substrate 40 composed of a conductor and a second substrate 50 composed of a conductor.

One end of the first substrate 40 is provided with a first electrical connection end 41 connected to the circuit board 10, and the other end of the first substrate 40 is provided with a first pivoting portion 42. One end of the second substrate 50 is provided with a second electrical connection end 51 connected to the other circuit board 10. The other end of the second substrate 50 is provided with a second pivotal pivotal connection with respect to the first pivoting portion 42. The rotating portion 52 is configured to enable relative pivoting between the first substrate 40 and the second substrate 50 to electrically connect the two circuit boards 10 when they are positioned on different planes, thereby causing the LED lamps to exhibit a three-dimensional light source effect.

In the figure, the first pivoting portion 42 and the second pivoting portion 52 are butted hollow cylindrical bodies, and the first pivoting portion 42 and the second pivoting portion 52 are connected with a rotating shaft having a conductive effect. 60 series connection, so that the first pivoting portion 42 and the second pivoting portion 52 have a stable connection, pivoting and conductive effect.

In addition, the circuit board 10 is respectively provided with a soldering hole 12, and the first electrical connecting end 41 is provided with a first engaging portion 411 embedded in the soldering hole 12 of one of the circuit boards 10, and the second electrical connecting end The second engaging portion 511 is inserted into the soldering hole 12 of the other circuit board 10 to provide a better soldering effect between the first substrate 40 and the second substrate 50 and the corresponding circuit board 10.

Alternatively, solder paste is provided at each of the connection positions of the circuit board 10 and the first and second substrates 40 and 50 to replace the soldering holes and the second engaging portions, so that the first and second electrical connecting ends 41 and 51 can be directly utilized. The SMT technology (surface adhesion technology) is soldered and fixed on the circuit board 10 through a tin furnace, so that the process can be completed quickly by an automated process.

Referring to the tenth and eleventh figures, a perspective view and a side view of another embodiment of the first embodiment of the present invention are shown; the embodiment is a spherical multi-point light source LED lamp 100, which includes multiple A circuit board 10 having different planes and angles is disposed, and surface-mounting LEDs 20 are directly disposed on each of the circuit boards 10, and electrical connections are made between the adjacent circuit boards 10 by the aforementioned electrical connection structure 30. Because the electrical connection structure 30 of the present invention has the functions of connection, pivoting and conduction, the complicated spherical multi-point source LED lamp 100 can be modularized and assembled quickly.

Please refer to the schematic diagram of the first embodiment of the present invention applied to the stepped circuit board shown in FIG. 12; since the LED lamp is likely to be arranged in a stepped multi-point source, it is necessary for the circuit board 10 to be vertically connected. The electrical connection can also be made through the implementation of the electrical connection structure 30, so that the LED lamp can perform multi-angle light source presentation in a more stereoscopic manner.

As shown in the thirteenth figure, the circuit boards 10 arranged in a stepped manner may be arranged in more than one column, but extend in a plurality of directions to form a three-dimensional state arrangement, and each of the circuit boards 10 must be electrically connected to each other. When used here, the first substrate 40 and the second substrate 50 of the electrical connection structure 30 can be pivotally connected to each other, and the electrical connection between the circuit boards 10 arranged in various shapes, levels, and angles can be easily completed.

As shown in the fourteenth and fifteenth figures, the first substrate 40 and the second substrate 50 are relatively pivotable. When the two circuit boards 10 are connected, whether by conventional welding or SMT technology, It can be operated on the same plane first, and then the two circuit boards 10 are bent into a desired angle with the shape of the lampshade, thereby modularizing the production and greatly increasing the manufacturing speed.

For example, the fourteenth figure shows a plurality of circuit boards 10 arranged in a stepped manner. The expanded state of the plurality of circuit boards 10 arranged in a stepped manner is as shown in the fifteenth figure, that is, when manufacturing and assembling, the complex circuit can be first used. The panel 10 is unfolded to operate on the same plane, and after the electrical connection structure 30 is disposed between each two of the circuit boards 10, the soldering is directly performed by SMT technology, and then bent into a shape as shown in Fig. 14.

As shown in the sixteenth and seventeenth aspects, the above-mentioned plurality of circuit boards 10 are unfolded on the same plane and then bent into a desired shape, and the application range thereof is quite wide, whether as a steam or a locomotive light eyebrow. (16th), either one side of the steam, the locomotive side light, the other side as a warning light or a license plate light (figure 17), which also highlights the applicability of the present invention. It is very extensive.

Referring to the perspective view of the second embodiment of the present invention shown in FIG. 18, the operation mode and the embodiment of the electrical connection structure 30 shown in this embodiment are substantially the same as those of the first embodiment, and the difference is that The pivoting portion 42 and the second pivoting portion 52 are directly connected crimping structures, so that the first pivoting portion 42 and the second pivoting portion 52 provide a simple and rapid connection, pivoting, and conductive effect.

19 and 20 are a perspective view of a third embodiment of the present invention and a schematic view of an embodiment, which is different from the first embodiment in that a relay substrate composed of a conductor is further included. 70. The relay substrate 70 is provided with a third pivoting portion 71 connected to the first pivoting portion 42 at one end and a fourth pivoting portion 72 connected to the second pivoting portion 52 at the other end. Thereby, the first substrate 40 can be electrically connected to the first substrate 40 and the second substrate 50 by the circuit boards 10 arranged in a stepwise manner or having a height difference, and the first substrate 40 can be made by the longitudinal extension effect of the relay substrate 70. The second substrate 50 is electrically connected to each other.

In implementation, the first pivoting portion 42 and the third pivoting portion 71, the second pivoting portion 52 and the fourth pivoting portion 72 are abutting hollow cylindrical bodies, and the first pivoting portion 42 and the third pivoting portion Between the rotating portions 71, the second pivoting portion 52 and the fourth pivoting portion 72 are respectively connected in series by a rotating shaft 60 having a conductive effect, so as to have a stable connection, pivoting and conducting effect therebetween.

In addition, between the first pivoting portion 42 and the third pivoting portion 71 and between the second pivoting portion 52 and the fourth pivoting portion 72, the second embodiment can be as shown in the eighteenth embodiment. The crimping structures are directly pivotally connected to each other for simple and quick connection, pivoting and electrical conduction. The other detailed embodiments of the first substrate 40, the second substrate 50, and the circuit board 10 are the same as those of the previous embodiment, and will not be further described herein.

In summary, according to the implementation of the present invention, the stereo multi-point light source shape of the LED lamp is not limited by the shape, and is advantageous for modular assembly and production to provide good electrical connection and heat dissipation effect. Significantly improve the durability of LED luminaires, enabling LED luminaires to be used under more severe environmental conditions, especially for vehicle luminaires with more diverse appearance.

However, the above description of the preferred embodiments of the present invention is not intended to limit the present invention; it should be approximated or identical to the structure, device, features, etc. of the present invention. The inventive object of the invention is within the scope of the patent application.

100. . . LED light fixture

10. . . Circuit board

11. . . Socket

12. . . Welding hole

20. . . led

30. . . Electrical connection structure

40. . . First substrate

41. . . First electrical connection

411. . . First engagement

42. . . First pivot

50. . . Second substrate

51. . . Second electrical connection

511. . . Second engagement

52. . . Second pivoting

60. . . Rotating shaft

70. . . Relay substrate

71. . . Third pivoting

72. . . Fourth pivot

The first figure is a schematic diagram of a conventional use of a wire in series with an LED and a socket.

The second figure is a schematic view of the first figure socket mounted on the lamp reflector.

The third figure is a schematic view of a conventional use of a stepped mount and a metal conductive sheet.

The fourth figure is a schematic diagram of the electrical pins and the groove joints on the circuit board.

The fifth figure is a schematic diagram of providing a conductive positioning piece between two circuit boards.

Fig. 6 is a perspective view showing the appearance of an LED lamp according to a first embodiment of the present invention.

Figure 7 is a perspective exploded view of the LED lamp of the first embodiment of the present invention.

Figure 8 is a side elevational view of the first embodiment of the present invention.

The ninth drawing is a perspective view of the first embodiment of the present invention.

Figure 11 is a perspective view showing another embodiment of the first embodiment of the present invention.

Figure 11 is a schematic side view showing the construction of the circuit board connection in the tenth figure.

Figure 12 is a side view showing the application of the present invention to a stepped circuit board.

The thirteenth picture is a schematic view showing the three-dimensional state of the stepped circuit board of the twelfth figure.

Figure 14 is a perspective view of the present invention applied to a stepped circuit board.

The fifteenth figure is a schematic diagram of the fourteenth circuit board unfolded for the SMT process.

The sixteenth figure is a schematic diagram (1) of the invention applied to a more complicated modeling lamp.

The seventeenth figure is a schematic diagram (2) of the invention applied to a more complicated modeling lamp.

Figure 18 is a perspective view of a second embodiment of the present invention.

Fig. 19 is a perspective view showing a third embodiment of the present invention.

Figure 20 is a schematic view showing an embodiment of the third embodiment of the present invention.

30. . . Electrical connection structure

40. . . First substrate

41. . . First electrical connection

411. . . First engagement

42. . . First pivot

50. . . Second substrate

51. . . Second electrical connection

511. . . Second engagement

52. . . Second pivoting

60. . . Rotating shaft

Claims (14)

The LED lamp electrical connection structure is disposed between the circuit boards of different planes in the LED lamp, and comprises: a first substrate, which is composed of a conductor, and one end of which is provided with a first electrical connection end connected to the circuit board, The other end is provided with a first pivoting portion; and a second substrate is formed by a conductor, one end of which is provided with a second electrical connection end connected to the other circuit board, and the other end is provided with a second pivoting portion. The pivoting portion of the pivoting portion is pivotally connected to the first pivoting portion. The LED lamp electrical connection structure of claim 1, wherein the first pivoting portion and the second pivoting portion are butted hollow cylindrical bodies, and between the first pivoting portion and the second pivoting portion It is connected in series with a rotating shaft with conductive effect. The LED lamp electrical connection structure of claim 1, wherein the first pivoting portion and the second pivoting portion are pivoted structures that are pivotally connected to each other. The LED lamp electrical connection structure is disposed between the circuit boards of different planes in the LED lamp, and comprises: a first substrate, which is composed of a conductor, and one end of which is provided with a first electrical connection end connected to the circuit board, The other end is provided with a first pivoting portion; a second substrate is formed by a conductor, one end of which is provided with a second electrical connection end connected to the other circuit board, and the other end is provided with a second pivoting portion; The substrate is composed of a conductor, and has a third pivoting portion pivotally connected to the first pivoting portion at one end and a fourth pivoting portion pivotally connected to the second pivoting portion at the other end. The LED lamp electrical connection structure of claim 4, wherein the first pivoting portion and the third pivoting portion, the second pivoting portion and the fourth pivoting portion are butted hollow columns, and Between a pivoting portion and a third pivoting portion, and between the second pivoting portion and the fourth pivoting portion are respectively connected in series by a rotating shaft having a conductive effect. The LED lamp electrical connection structure of claim 4, wherein the first pivoting portion and the third pivoting portion are directly connected to the crimping structure, the second pivoting portion and the fourth pivoting portion. The crimping structure is pivoted to each other. The LED lamp electrical connection structure according to any one of claims 1 to 6, wherein each of the circuit boards is provided with a soldering hole, and the first electrical connecting end is provided with a solder embedded in one of the circuit boards. a first engaging portion of the hole, the second electrical connecting end being provided with a second engaging portion embedded in the welding hole of the other circuit board. The LED lamp electrical connection structure of claim 7, wherein the circuit board is provided with an LED. The LED lamp electrical connection structure according to claim 8, wherein the LED is of a surface adhesion type. The LED lamp electrical connection structure according to claim 8, wherein the LED is a plug-in type LED, and the circuit board is provided with a plurality of plug sockets for plugging and unplugging. The LED lamp electrical connection structure according to any one of claims 1 to 6, wherein each of the circuit boards is provided with a solder paste, and the first and second electrical connection ends are soldered and fixed by surface adhesion technology. Corresponding circuit board. The LED lamp electrical connection structure of claim 11, wherein the circuit board is provided with an LED. The LED lamp electrical connection structure according to claim 12, wherein the LED is of a surface-adhesive type. The LED lamp electrical connection structure according to claim 12, wherein the LED is a plug-in type LED, and the circuit board is provided with a plurality of plug-in sockets for plugging and unplugging.