TW201535866A - Lighting device - Google Patents

Abstract

A lighting device includes a light tube, at least one light-emitting element, a circuit board, at least one conductive elastic piece, at least one endcap, at least one support member, and at least one terminal. The light-emitting element is disposed in the light tube. The circuit board is disposed in the light tube, and the circuit board has a first end and a second end opposite to the first end. The circuit board has a drive circuit, and the drive circuit is electrically connected to the light-emitting element. The conductive elastic piece is connected to the first end and electrically connected to the drive circuit. The endcap has an inner end wall, and the endcap is sleeved over one end of the light tube. The terminal passes the endcap, and the terminal has an undercut. The undercut removably interlocks with and is electrically connected to the conductive elastic piece.

Description

Lamp

The invention relates to a luminaire.

In recent years, Light-Emitting Diode (LED) The improvement of technology, high-power, high-luminosity LEDs are on the market, and the advantages of LEDs as long-life bulbs have made these bulbs gradually replace other traditional light sources. LEDs can be used in many fixtures such as fluorescent, street or flashlights.

JEL801 is the specification standard of the Japan Electric Ball Industry Association for straight-tube type LED lamps with L-type lamp caps (power terminals). JEL801 refers to JEL907 (Nippon Electric Ball Industry Association for lamp heads, lamp holders and their dimensions) Dimensional specifications for DC power terminals. Since JEL801 stipulates that the power supply terminal of the straight tube type LED lamp must have an L shape, the terminal must be at least partially buried in the insulating end cover during manufacture. Because the shape of the L-shaped terminal in the insulating end cover is a rectangular strip metal, when the input end of the driving circuit is to be connected, if the conventional welding method is used, the inner wall of the end cover will be damaged to make the appearance and insulation. Damaged. In addition, since the L-type terminal is solid, it is also impossible to use the riveting method and the drive circuit. Incoming connection.

At present, another connector is used in the industry to connect the L-type terminal and the input end of the driving circuit, but this method not only has high assembly cost, low sharing efficiency, but also takes a long time to develop related lighting products.

The invention provides a lamp for quickly and easily assembling a connection terminal and a circuit board.

According to an embodiment of the invention, a lamp includes a lamp tube, at least one light emitting element, a circuit board, at least one conductive elastic piece, at least one end cover, at least one support member, and at least one terminal. The light emitting element is disposed in the light tube. The circuit board is disposed in the lamp tube, and the circuit board has a first end and a second end located on different sides, and the circuit board is electrically connected to the light emitting element. The conductive elastic piece is connected to the first end of the circuit board and electrically connected to the circuit board. The end cap has an inner end wall, and the end cap is sleeved at one end of the lamp tube. The support member physically connects the end cap and supports the first end of the circuit board. The terminal passes through the end cover, and the terminal has a barb, and the barb is detachably fitted with the conductive elastic piece and electrically connected to each other.

In one or more embodiments of the present invention, the conductive elastic piece includes a base, a engaging portion, and a connecting portion. The base is connected to the first end of the circuit board. The engaging portion is above the base, and the engaging portion is detachably fitted to the barb. The connecting portion connects the base and the engaging portion.

In one or more embodiments of the present invention, the engaging portion electrically contacts the terminal.

In one or more embodiments of the present invention, the connecting portion and the engaging portion The joint has a surface.

In one or more embodiments of the present invention, the base has a first end surface adjacent to the inner end wall and a second end surface remote from the inner end wall, and the connecting portion connects the first end surface of the base.

In one or more embodiments of the invention, the conductive dome is Z-shaped.

In one or more embodiments of the present invention, the conductive elastic piece further includes a support portion. The connecting portion and the supporting portion are respectively connected to opposite end faces of the engaging portion, and the end faces of the supporting portions are opposed to the side faces of the connecting portion.

In one or more embodiments of the present invention, the barb includes a beveled edge that can hook the conductive elastic piece and a beveled edge of the opposite mating side.

In one or more embodiments of the invention, the beveled edge and the mating edge have an included angle θ and 30 degrees < θ < 90 degrees.

In one or more embodiments of the invention, the light emitting element comprises a plurality of light emitting diodes.

In one or more embodiments of the invention, the circuit board is a driver circuit board.

In one or more embodiments of the present invention, the luminaire has a virtual equal grading surface, and the lamp tube is divided into an upper portion and a lower portion, wherein the mating edge and the circuit board are respectively located at the upper portion and the lower portion.

In one or more embodiments of the present invention, the terminals are integrally formed with the end cap in a burying manner.

In one or more embodiments of the present invention, the support member includes at least one pair of baffles, the baffle defines a sliding groove therebetween, and the circuit board is slidably coupled to slide groove.

The above-mentioned embodiment of the present invention can be assembled and electrically connected to the terminal quickly and simply by the special design that the barbs on the terminal and the conductive elastic piece can be mutually fitted, thereby saving the cost of the connector and improving the cost of the lamp. The assembly speed and thus the time required to develop the associated luminaire product.

100‧‧‧Lights

200‧‧‧ boards

201‧‧‧ first end

202‧‧‧second end

220‧‧‧Electrical shrapnel

221‧‧‧Base

221f‧‧‧ first end face

221s‧‧‧second end face

223‧‧‧Connecting Department

224‧‧‧Clock Department

224c‧‧‧ surface

226‧‧‧Support Department

230‧‧‧ Drive components

300‧‧‧End cover

312‧‧‧ inner end wall

320‧‧‧Support

321‧‧ ‧ baffle

322‧‧‧Chute

330‧‧‧ terminals

331‧‧‧ Terminal first end

332‧‧‧ Terminal second end

333‧‧‧

334‧‧‧Fitting side

335‧‧‧ oblique side

400‧‧‧Lighting elements

410‧‧‧Lighting diode

420‧‧‧Light strip substrate

500‧‧‧ lamps

P‧‧‧Virtual equal plane

Θ‧‧‧ angle

1 is a cross-sectional view of a luminaire in accordance with an embodiment of the present invention.

Fig. 2 is a partial enlarged view of Fig. 1.

Figure 3 is an exploded view of the end cap, circuit board, and conductive shrapnel of Figure 1.

Fig. 4A is a perspective view showing the terminal of Fig. 1.

Fig. 4B is an enlarged side view showing a portion 4 of Fig. 4A.

Fig. 5 is a partial perspective view showing the end cover, the circuit board, and the conductive elastic piece of Fig. 1.

Figure 6 is a cross-sectional view of a luminaire in accordance with another embodiment of the present invention.

The embodiments of the present invention are disclosed in the following drawings, and the details of However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the present invention, these practices The details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified schematic manner in order to simplify the drawings.

Please refer to FIG. 1 , FIG. 2 and FIG. 3 simultaneously. FIG. 1 is a cross-sectional view of a lamp 100 according to an embodiment of the present invention, and FIG. 2 is a partial enlarged view of FIG. 1 , FIG. An exploded view of the end cap 300, the circuit board 200, and the conductive elastic piece 220 of Fig. 1 is shown. The terminal 330 of the lamp 100 of the present embodiment is mainly of the GX16 type. The GX16 was developed by the Japan Electric Ball Industry Association, and the GX16 complies with the specifications of JEL801 and JEL907. In addition, the conductive elastic piece 220 can conform to existing public regulations.

As shown in FIG. 1 , FIG. 2 and FIG. 3 , the lamp 100 includes a circuit board 200 , at least one conductive elastic piece 220 , at least one end cover 300 , at least one supporting member 320 , at least one terminal 330 , and at least one light emitting element 400 . And a lamp tube 500. The light emitting element 400 is disposed in the bulb 500. The circuit board 200 is disposed in the lamp tube 500, and the circuit board 200 has a first end 201 and a second end 202 on different sides. The first end 201 faces the end cover 300 and the second end 202 faces the lamp tube 500. And the circuit board 200 has a driving circuit (not shown), and the driving circuit is electrically connected to the light emitting element 400. The conductive elastic piece 220 is connected to the first end 201 of the circuit board 200 and electrically connected to the driving circuit 210. The end cap 300 has an inner end wall 312, and the end cap 300 is sleeved at one end of the bulb 500. The support member 320 physically connects the end cap 300 and supports the first end 201 of the circuit board 200. In one embodiment, the support member 320 is a two sliding slot 322 disposed on the inner end wall 312 of the end cover 300, and the terminal 330 passes through the end cover 300, and the terminal 330 has a barb 333, and the barb 333 is The conductive elastic pieces 220 are detachably fitted and electrically connected to each other, and the other of the terminals 330 One end protrudes from the outside of the end cover 300 and is electrically connected to an external power source.

By the design that the conductive elastic piece 220 and the barb 333 of the terminal 330 can be fitted to each other, the first end 201 of the circuit board 200 can be quickly and simply placed on the support member 320 and slid into the end cover 300, after which the circuit board 200 The conductive elastic piece 220 is automatically engaged with the barb 333 of the terminal 330 and electrically connected to electrically connect the terminal 330 to the driving circuit 210.

By the above assembly method, the circuit board 200 can be quickly and easily assembled with the terminal 330, and the terminal 330 is electrically connected to the driving circuit 210 without additionally providing a connector to connect the circuit board 200 and the terminal 330. In this way, not only can additional connector costs be saved, but also the assembly speed of the luminaire 100 can be increased, thereby reducing the time required to develop the associated luminaire product.

FIG. 4A is a perspective view of the terminal 330 of FIG. 1. As shown in FIG. 3 and FIG. 4A , the terminal 330 may include a terminal first end 331 and a terminal second end 332 , wherein the barb 333 is disposed at the terminal second end 332 , and the terminal first end 331 may be an L-shaped shape. To meet the specifications JEL801 or JEL907.

As shown in FIG. 2 and FIG. 4A, the terminal 330 can be integrally formed with the end cap 300 in a manner of being buried and formed. Since the terminal 330 has a solid structure, the driving circuit 210 cannot be connected by riveting. By the design that the conductive elastic piece 220 and the barb 333 of the terminal 330 can be fitted to each other, the circuit board 200 can still be assembled quickly and simply with the terminal 330, and the terminal 330 is electrically connected to the driving circuit 210.

As shown in FIG. 2 and FIG. 3, the support member 320 includes two pairs of baffles 321 defining a sliding slot 322 therebetween, and the circuit board 200 is slidable. The chute 322 is coupled to the ground. It should be understood that the specific embodiments of the support member 320 are merely illustrative and not intended to limit the present invention. Those skilled in the art to which the present invention pertains may flexibly select the specificity of the support member 320 according to actual needs. Implementation.

The material of the conductive elastic piece 220 may be metal, such as copper, and the material of the terminal 330 may be metal, such as copper. It should be understood that the materials of the conductive elastic piece 220 and the terminal 330 are merely exemplified, and are not intended to limit the present invention. Those having ordinary knowledge in the technical field of the present invention can flexibly select the conductive elastic piece 220 and the actual needs. The material of the terminal 330.

FIG. 5 is a partial perspective view of the end cap 300, the circuit board 200, and the conductive elastic piece 220 of FIG. As shown in FIGS. 2 and 5 , the conductive elastic piece 220 includes a base 221 , an engaging portion 224 , and a connecting portion 223 . The base 221 is connected to the first end 201 of the circuit board 200. The engaging portion 224 is located above the base 221, and the engaging portion 224 is detachably fitted with the barb 333. The connecting portion 223 connects the base 221 and the engaging portion 224.

Specifically, the conductive elastic piece 220 may be of a Z shape. It should be understood that the specific embodiments of the conductive elastic piece 220 are merely illustrative, and are not intended to limit the present invention. Those having ordinary knowledge in the technical field of the present invention can flexibly select the specificity of the conductive elastic piece 220 according to actual needs. Implementation.

Specifically, the base 221 has a first end surface 221f adjacent to the inner end wall 312 and a second end surface 221s away from the inner end wall 312. The connecting portion 223 is connected to the first end surface 221f of the base 221 .

Specifically, the barb 333 includes a mating edge 334 that can hook the conductive elastic piece 220 and a beveled edge 335 that is opposite to the fitting edge 334. It should be understood that the above The specific embodiment of the barb 333 is merely illustrative and not intended to limit the present invention. Those skilled in the art to which the present invention pertains may flexibly select a specific embodiment of the terminal 330 according to actual needs.

When assembling the terminal 330 and the circuit board 200, the first end 201 of the circuit board 200 is first slid into the sliding slot 322, and then the engaging portion 224 of the conductive elastic piece 220 will contact the oblique side 335 of the barb 333 and beveled. The 335 is pressed, so that the engaging portion 224 of the conductive elastic piece 220 and the connecting portion 223 will be bent toward the second end surface 221s of the base 221, thereby lowering the overall height of the conductive elastic piece 220. Then, as the circuit board 200 continues to slide in the direction of the terminal 330, the conductive elastic piece 220 can pass through the barb 333, and after the engaging portion 224 passes the barb 333, the engaging portion 224 and the connecting portion 223 stop bending. The original shape is restored, and thus the conductive elastic piece 220 and the barb 333 of the terminal 330 are fitted to each other. Specifically, the fitting edge 334 will catch the engaging portion 224 to fit the conductive elastic piece 220 and the barb 333 of the terminal 330 to each other.

Fig. 4B is an enlarged side view showing a portion 4 of Fig. 4A. As shown in FIG. 2 and FIG. 4B, the oblique side 335 and the fitting edge 334 have an angle θ between 30 degrees < θ < 90 degrees. When the engaging portion 224 and the connecting portion 223 are pressed by the oblique portion 335, the engaging portion 224 and the connecting portion 223 can be appropriately bent toward the second end surface 221s of the base 221, so that the conductive elastic piece 220 can be smoothly smoothed. The ground passes through the barb 333 and is fitted to the barb 333 of the terminal 330.

As shown in FIGS. 2 and 5 , the engaging portion 224 electrically contacts the terminal 330 . The shape of the engaging portion 224 may correspond to the shape of the second end 332 of the terminal, thereby making the engaging portion 224 and the second end 332 of the terminal as large as possible. The contact area allows the current between the engaging portion 224 and the terminal 330 to flow smoothly. In the present embodiment, the engaging portion 224 has a flat sheet shape corresponding to the rectangular structure of the terminal 330, and thus has a large contact area.

The conductive elastic piece 220 may further include a support portion 226. The connecting portion 223 and the supporting portion 226 are respectively connected to opposite end faces of the engaging portion 224, and the end faces of the supporting portions 226 are opposed to the side faces of the connecting portion 223. In this manner, the support portion 226 can support the shape of the engaging portion 224 such that the engaging portion 224 can correspond to the shape of the terminal second end 332 to maintain a large contact area. In addition, the engaging portion 224 and the supporting portion 226 can both be in a sheet-like structure. By using the above-mentioned structural configuration, the conductive elastic piece 220 can make the engaging portion 224 and the terminal 330 can be barbed 333 with very little material. They are fitted to each other while maintaining a large contact area with the shape of the second end 332 of the terminal.

Specifically, the connection portion of the connecting portion 223 and the engaging portion 224 may have a curved surface 224c. It should be understood that the specific embodiments of the connecting portion 223 and the engaging portion 224 are merely illustrative, and are not intended to limit the present invention. Those skilled in the art to which the present invention pertains may be flexibly selected according to actual needs. A specific embodiment of the connecting portion 223 and the engaging portion 224.

Circuit board 200 can be a driver circuit board. It is to be understood that the specific embodiments of the circuit board 200 are merely illustrative and are not intended to limit the present invention. Those having ordinary knowledge in the technical field of the present invention may flexibly select the specificity of the circuit board 200 according to actual needs. Implementation.

As shown in FIG. 2, the luminaire 100 can have a virtual equal plane F, The lamp tube 500 (see FIG. 1) is divided into an upper portion and a lower portion, wherein the mating edge 334 and the circuit board 200 are respectively located at the upper portion and the lower portion. The height of the conductive elastic piece 220 can be changed according to the design requirements, so that the height of the circuit board 200 can be adjusted according to the design requirements without changing the terminal 330 (the support member 320 must also be correspondingly adjusted at the same time). Thus, when it is necessary to provide some space-consuming components (such as the driving component 230) above the circuit board 200, the mounting height of the circuit board 200 can be lowered to accommodate the components without changing the design of the other components such as the terminal 330.

As shown in FIG. 1 , the light emitting element 400 can include a plurality of light emitting diodes 410 and a light bar substrate 420 . The light emitting diodes 410 are disposed on the light bar substrate 420, and the light emitting diodes 410 are arranged on the light bar substrate 420.

Figure 6 is a cross-sectional view of a luminaire 100 in accordance with another embodiment of the present invention. As shown in FIG. 6, the light-emitting element 400 is disposed on the circuit board 200. The light-emitting element 400 can include a plurality of light-emitting diodes 410. In other words, the light-emitting diode 410 is disposed on the circuit board 200, and the driving circuit is It can be disposed outside the lamp tube 500. Since the light emitting diode 410 is disposed on the circuit board 200, the height of the light emitting diode 410 will vary with the height of the circuit board 200. If the height of the circuit board 200 is lowered, the height of the LEDs 410 in the lamp tube 500 is also lowered, so that the LEDs 410 will diffuse light for a longer distance, and then pass through the lamps 500 and emit them. The luminaire 100, and thus the light exiting the luminaire 100, will appear more uniform.

The above-mentioned embodiment of the present invention can be assembled and electrically connected to the terminal 330 quickly and simply by the special design that the barb 333 and the conductive elastic piece 220 of the terminal 330 can be mutually engaged, thereby saving extra money. The connector cost also increases the assembly speed of the luminaire 100 and thus reduces the time required to develop the associated luminaire product.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

100‧‧‧Lights

200‧‧‧ boards

201‧‧‧ first end

202‧‧‧second end

220‧‧‧Electrical shrapnel

221‧‧‧Base

221f‧‧‧ first end face

221s‧‧‧second end face

223‧‧‧Connecting Department

224‧‧‧Clock Department

224c‧‧‧ surface

226‧‧‧Support Department

300‧‧‧End cover

312‧‧‧ inner end wall

320‧‧‧Support

321‧‧ ‧ baffle

322‧‧‧Chute

330‧‧‧ terminals

331‧‧‧ Terminal first end

332‧‧‧ Terminal second end

333‧‧‧

334‧‧‧Fitting side

335‧‧‧ oblique side

P‧‧‧Virtual equal plane

Claims (14)

A lamp comprising: a lamp tube; at least one light-emitting element disposed in the lamp tube; a circuit board disposed in the lamp tube, the circuit board having a first end and a first position on the opposite side a second end, the circuit board is electrically connected to the light emitting element; at least one conductive elastic piece is connected to the first end of the circuit board and electrically connected to the circuit board; at least one end cover has an inner end wall, and the end cover Is disposed at one end of the lamp tube; at least one support member physically connecting the end cover and supporting the first end of the circuit board; and at least one terminal passing through the end cover, and the terminal has a barb The barbs are detachably fitted to the conductive elastic sheets and electrically connected to each other. The luminaire of claim 1, wherein the conductive elastic piece comprises: a base connected to the first end of the circuit board; a latching portion located above the base, and the engaging portion and the barb can be The disassembling ground is fitted; and a connecting portion is connected to the base and the engaging portion. The luminaire of claim 2, wherein the engaging portion electrically contacts the terminal. The luminaire of claim 3, wherein the connection between the connecting portion and the engaging portion has a curved surface. The luminaire of claim 4, wherein the base has a first end surface adjacent to one of the inner end walls and a second end surface away from the inner end wall, the connecting portion connecting the first end surface of the base. The luminaire of claim 5, wherein the conductive shrapnel is Z-shaped. The illuminating device of claim 6, wherein the conductive elastic piece further comprises: a supporting portion, the connecting portion and the supporting portion are respectively connected to opposite end faces of the engaging portion, and an end surface of the supporting portion and the connecting portion are One side is opposite. The luminaire of any one of claims 1 to 7, wherein the barb includes a mating edge that can hook the conductive elastic piece and a bevel edge that is opposite to the kneading edge. The luminaire of claim 8, wherein the hypotenuse has an angle θ with the mating edge and 30 degrees < θ < 90 degrees. The luminaire of claim 1, wherein the illuminating element comprises a plurality of illuminating diodes. The luminaire of claim 1, wherein the circuit board is a drive circuit board. The luminaire of claim 8, wherein the luminaire has a virtual equal-plane, the lamp is divided into an upper portion and a lower portion, wherein the mating edge and the circuit board are respectively located at the upper portion and the lower portion Part. The luminaire of claim 1, wherein the terminal is integrally formed with the end cap in a buried manner. The luminaire of claim 1, wherein the support member comprises: two pairs of baffles defining a chute therebetween, the circuit board slidably coupling the chute.