JP5665034B2 - Light source module - Google Patents

Description

  The present invention relates to a light source module, and more particularly to a light source module that can be inserted and removed.

  With the progress of science and technology, the applications of light-emitting diode light sources are becoming increasingly widespread. The basic light emission principle of a light emitting diode is to emit light as light based on the combination of electrons and holes. Light emitting diodes can be further classified into inorganic light emitting diodes and organic light emitting diodes. Light emitting diodes have advantages such as small volume, fast reaction speed, good focusing, long service life, low power consumption and good earthquake resistance.

  As one of the linear light sources of light emitting diodes that are often seen, in order to form linear light emission, a plurality of light emitting diode units are generally mounted on a strip-shaped substrate to form a linear strip light, Thereby, the light is emitted from one side of the linear strip light of the light emitting diode, and a sufficient linear light source for the light guide plate or the backlight module can be provided.

  In the linear strip light of the light emitting diode, the plurality of light emitting diodes are generally soldered to the substrate by a surface mount technology (SMT), and the substrate is further attached to a heat sink (heat sink) by a heat radiating gel or a heat radiating tape. Fix it. However, the surface mount process requires high temperature baking (240-260 ° C.), which can change the packaging material in the package and cause instability of the package.

  Therefore, in the present invention, both ends of the light emitting diode strip light are designed like plugs, the positive and negative electrodes are designed at both ends of the plug, respectively, and the board and the heat sink are designed in a pluggable manner like an outlet. And submit an improved structure that contributes to assembly and avoids damage due to high temperature solder.

  The present invention provides a light source module. The light source module includes a light emitting base and a circuit base. The light emitting base is provided with a storage groove for storing a light source. The light emitting base is provided with a first connector and a second connector that are electrically connected to the light source. On the other hand, the circuit base is provided with a third connector and a fourth connector, and there is a circuit that is electrically connected to the third connector and the fourth connector. The first connector and the third connector, and the second connector and the fourth connector are formed as plugs and outlets, respectively, and can be freely fitted and combined with each other. As a result, a light source module that can be freely inserted and removed is formed and assembled repeatedly to form a linear light source of a light emitting diode. Accordingly, it is possible to reduce the number of times the surface mount technology is used and to avoid the disadvantage that the package temperature is excessively high due to the large amount of use of the surface mount technology in the conventional light emitting diode strip light. Note that the insertable / removable design further improves the convenience in use, is advantageous for assembly, reduces the manufacturing cost, and improves the manufacturing yield.

  In order to achieve an object of the present invention, an aspect of the present invention provides a light source module. The light source module includes a light emitting base and a circuit base. The light emitting base includes a storage groove, a first conducting wire, a second conducting wire, at least one light source, and a first connector and a second connector. The circuit base includes a circuit for driving the light source, a third connector, and a fourth connector. The light emitting base has a first surface and a second surface located opposite the first surface. The storage groove is formed on the first surface. The first conducting wire and the second conducting wire are partitioned and provided in the storage groove. At least one light source is provided on the first surface in the storage groove, and has a positive electrode and a negative electrode connected to the first conductor and the second conductor, respectively. The first connector and the second connector are respectively provided on the second surface, and both are electrically connected to the first conductor and the second conductor. The third connector and the fourth connector are provided on the surface of the circuit base so as to correspond to the first connector and the second connector on the second surface, respectively, and are electrically connected to the circuit. The first connector and the third connector are fitted and combined with each other, and the second connector and the fourth connector are fitted and combined with each other to electrically connect the light emitting base and the circuit base.

  In one embodiment of the present invention, the first connector and the second connector are respectively provided protruding from the second surface on the light emitting base. Each of the first connector and the second connector includes a pair of positive and negative electrical input / output terminals, and each positive electrode and negative electrode are electrically connected to the first conductor and the second conductor, respectively. .

  The third connector and the fourth connector are provided so as to protrude from the surface of the circuit base, respectively, each including an opening, and the first connector and the second connector are separately inserted and fitted to each other. Electrical connection with 4 connectors. Each of the third connector and the fourth connector includes a pair of positive and negative electrical input / output terminals.

  The storage groove has a bottom surface formed of a first surface and two side walls adjacent to the edges of two parallel opposing long sides on the bottom surface of the storage groove. The light source may be an organic light emitting diode or an inorganic light emitting diode. In addition, the light source module may further include a reflective layer provided on the first surface in the storage groove for reflecting the light from the light source. Further, the light emitting base is manufactured by integrally molding with an aluminum strip.

  The light source module further includes a heat sink sandwiched between the light emitting base and the circuit base.

It is a disassembled perspective view which shows one Example of the light source module of this invention. It is a schematic diagram which shows one Example of the conductive arrangement system of the light source by FIG. 1A. It is a partial side sectional view showing the case where the light emission base and circuit base by Drawing 1A are combined. 1B is a schematic partial perspective view showing an embodiment of a light source according to FIG. 1A. FIG. 1B is a schematic partial perspective view showing another embodiment of the light source according to FIG. 1A. FIG. It is a fragmentary perspective exploded view which shows another Example of the light source module of this invention. It is a combination schematic diagram which shows the case where the thickness of the heat sink by FIG. 4 is equal to a space | interval. The side surface schematic diagram by FIG. 5 is shown. It is a combination schematic diagram which shows the case where the thickness of the heat sink by FIG. 4 is smaller than a space | interval. The side surface schematic diagram by FIG. 7 is shown.

  The embodiments of the present invention will be described in detail with particular reference to the accompanying drawings so that the embodiments can be clearly described.

  Please refer to FIG. 1A, FIG. 1B, and FIG. 1C. FIG. 1A is an exploded perspective view showing an embodiment of a light source module 100 of the present invention. FIG. 1B is a schematic diagram showing an embodiment of a conductive arrangement method of the light source 112 according to FIG. 1A. FIG. 1C is a partial side sectional view showing a case where the light emitting base 110 and the circuit base 120 according to FIG. 1A are combined. The light source module 100 includes a light emitting base 110 and a circuit base 120. The light emitting base 110 includes a storage groove 111, at least one light source 112, a first connector 113, a second connector 114, a first conductor 115, and a second conductor 116.

  The circuit base 120 includes a circuit, a third connector 122, and a fourth connector 123. The light emitting base 110 has a first surface 117 and a second surface 118. The first connector 113 and the second connector 114 are provided so as to protrude from the second surface 118 and are electrically connected to the light source 112. The connection method of the light source 112 is through the first conductor 115 and the second conductor 116, respectively. It is connected to the positive and negative ends and is further electrically connected to the first connector 113 and the second connector 114. The first connector 113 is provided with a pair of conductive positive and negative electrical input / output terminals 113a and 113b, and the second connector 114 is provided with conductive positive and negative electrical input / output terminals 114a and 114b. The storage groove 111 is formed on the first surface 117 and has a bottom surface 111a. The light source 112 is provided on the bottom surface 111a. The third connector 122 and the fourth connector 123 protrude from the surface 124 of the circuit base 120 and correspond to the positions of the first connector 113 and the second connector 114, respectively. The third connector 122 has an opening 122c, and the fourth connector 123 has an opening 123c. Thus, the first connector 113 and the third connector 122 are detachably fitted to each other and combined. 114 and the fourth connector 123 are combined so that they can be inserted and removed. As an embodiment of the circuit base 120, a shape such as a printed circuit board can be used, and both the third connector 122 and the fourth connector 123 are provided on the circuit base 120 and are electrically connected to each other. Conductive positive and negative electrical input / output terminals 122a and 122b are provided in the third connector 122, and conductive positive and negative electrical input / output terminals 123a and 123b are provided in the fourth connector 123. In use, the power supply supplies power to the positive and negative electrical input / output terminals 122a and 122b and the positive and negative electrical input / output terminals 123a and 123b through the circuit base 120. After the light emitting base 110 and the circuit base 120 are fitted and combined with each other, the positive and negative electrical input / output terminals 113a of the first connector 113 and the positive and negative electrical input / output terminals 122a of the third connector 122 are in contact with each other, The positive and negative electrical input / output terminals 114a of the second connector 114 and the positive and negative electrical input / output terminals 123a of the fourth connector 123 are brought into contact with each other and are electrically connected to each other. The first conductive wire 115 and the second conductive wire 116 allow Power is supplied to the light source 112 provided in the light source to emit light.

  In FIG. 1B, a light emitting diode (indicated by an electronic element symbol in the drawing) is used as the light source 112, and a plurality of light emitting diodes may be connected in series / parallel. One of the conductive arrangement methods is as shown in FIG. 1B. The first conducting wire 115 and the second conducting wire 116 are embedded on both sides of the first surface 117 of the light emitting base 110 and are used for connecting negative and positive electrodes, respectively. Each light emitting diode is connected in series to form a linear light emitting array 240. In the linear light emitting array 240, a light emitting diode at one end is electrically connected to the first conductor 115 with a negative electrode, and a light emitting diode at the other end is electrically connected to the second conductor 116 with a positive electrode. The light emitting diodes are connected in series with each other with a positive electrode and a negative electrode. The linear light source array 240 can be repeatedly extended and connected to form a linear light source. It should be understood that the arrangement of the positive electrode and the negative electrode is not limited to the type disclosed in the present embodiment, and any reasonable connection method applicable to circuit conduction can be applied to the present invention. be able to.

  Continuing to refer to FIG. FIG. 2 is a partial perspective schematic view showing an embodiment of the light source 112 according to FIG. 1A. The light source 112 is provided in the storage groove 111. The light source 112 may be composed of a plurality of inorganic light emitting diode chips. When an inorganic light emitting diode chip is used, a plurality of inorganic light emitting diode chips can be electrically connected to each other and then connected to the first conducting wire 115 and the second conducting wire 116, and the first conducting wire 115 and the second conducting wire 116 can be connected. Are electrically connected to positive and negative electrical input / output terminals 113a and 113b, respectively. On the other side of the light emitting base 110, the first conductive wire 115 and the second conductive wire 116 are electrically connected to the positive and negative electrical input / output terminals 114a and 114b, respectively, and when used, the positive and negative electrical input / output terminals 113a, The light source 112 is conducted through 113b and 114a, 114b to emit light. Furthermore, a reflection layer for reflecting the light beam from the light source 112 and increasing the light emission luminance can be additionally provided in the storage groove 111.

  Continuing to refer to FIG. FIG. 3 is a partial perspective schematic view showing another embodiment of the light source 112 according to FIG. 1A. The light source 112 may comprise an organic light emitting diode. Because of the surface emission characteristics of the organic light emitting diode, the necessary light source 112 can be formed by using a large area organic light emitting diode. The light source 112 is directly fitted in the storage groove 111 and is electrically connected to the positive and negative electrical input / output terminals 113a and 113b, and the other side is electrically connected to the positive and negative electrical input / output terminals 114a and 114b. (Refer simultaneously to FIG. 1A). In use, the light source 112 can be made to conduct light through the positive and negative electrical input / output terminals 113a, 113b and 114a, 114b.

  Continuing to refer to FIG. FIG. 4 is a partial perspective exploded view showing another embodiment of the light source module of the present invention. The light source module 200 includes a light emitting base 210, a heat sink 230, and a circuit base 220. The light emitting base 210 includes a storage groove 211, at least one light source 212, and a plurality of connectors 213. The circuit base 220 includes a light source circuit and a plurality of connectors 222. Since the connection operation relationship between each element on the light emitting base 210 and the circuit base 220 is similar to the structure of the light source module 100 shown in FIGS. 1A to 1C, it will not be described repeatedly. In the present embodiment, the difference is that a heat radiating plate 230 is provided between the light emitting base 210 and the circuit base 220. There is a through hole 231 penetrating on one side of the heat sink 230, and the connector 213 of the light emitting base 210 passes through the through hole 231, and is fitted to the connector 222 of the circuit base 220 to be combined with each other. It can be sandwiched between a light emitting base and the circuit base.

  Continuing to refer to FIGS. FIG. 5 is a combination schematic diagram showing a case where the thickness of the heat sink according to FIG. 4 is equal to the interval. FIG. 6 shows a schematic side view according to FIG. As can be seen from FIGS. 5 and 6, when the thickness d of the heat sink 230 is equal to the interval t, the light emitting base 210, the circuit base 220, and the heat sink 230 are in close contact with each other.

  With continuing reference to FIGS. FIG. 7 is a combination schematic diagram showing a case where the thickness d of the heat sink 230 according to FIG. 4 is smaller than the interval t. FIG. 8 shows a schematic side view according to FIG. When the thickness d of the heat sink 230 is smaller than the interval t, after the light emitting base 210 and the circuit base 220 are fitted and combined with each other, the heat sink 230 is brought into close contact with the light emitting base 210 to achieve a heat dissipation effect. In this case, another interval t1 is formed between the heat sink 230 and the circuit base 220. By adjusting / controlling the size of t1 by changing the thickness d of the heat sink 230 or the height t of the connector, different heat dissipation effects can be achieved.

  The present invention provides a light source module. The light source is provided on the light emitting base. The light emitting base further has a connector electrically connected to the light source. On the other hand, a connector is provided on the circuit base and is further electrically connected to a light source circuit on the circuit base. A connector provided on the light emitting base and a connector provided on the circuit base are fitted and combined so that they can be inserted and removed. After fitting and combining, the light source can emit light by conducting with each other through positive and negative electrical input / output terminals on the connector. This pluggable design reduces the number of times surface mount technology is used, avoids material destruction due to high temperatures during packaging, is advantageous for assembly, reduces manufacturing costs, and improves manufacturing yield Can be made.

100, 200: light source module 110, 210: light emitting base 111, 211: storage groove 111a: bottom surface 112, 212: light source 113: first connectors 113a, 113b, 114a, 114b, 122a, 122b, 123a, 123b: positive, negative Electrical input / output terminal 114: second connector 115: first conductor 116: second conductor 117: first surface 118: second surface 120, 220: circuit base 122: third connector 122c, 123c: opening 123: fourth Connector 124: Surface 213, 222: Connector 230: Heat sink 231: Through hole 240: Linear light emitting array d: Thickness t, t1: Interval

Claims (10)

A first surface and a second surface located on the opposite side of the first surface; a storage groove formed on the first surface; a first conductive wire provided in a partitioned manner in the storage groove; Two conductors, at least one light source provided on the first surface in the storage groove and connected to the first conductor and the second conductor, respectively, and provided on the second surface, respectively. A light emitting base comprising a first connector and a second connector that are electrically connected to the first conductor and the second conductor;
A circuit for driving the light source, and a third connector and a fourth connector, which are provided so as to correspond to the first connector and the second connector on the second surface, respectively, and are electrically connected to the circuit, respectively A circuit base comprising:
Comprising
Each of the third connector and the fourth connector is provided on the surface of the circuit base so as to correspond to the first connector and the second connector on the second surface,
Wherein said first connector and said third connector is fitted combined has been the first connector and to one another third connector and are electrically connected, fitted to the second connector and the fourth connector together to combined has been the second connector and the fourth connector that is electrically connected, a light source module for electrically connecting the circuit base and the light emitting base.   The light source module according to claim 1, wherein each of the first connector and the second connector protrudes from the second surface on the light emitting base.   Each of the first connector and the second connector includes a pair of positive and negative electrical input / output terminals, and the positive electrode and the negative electrode are electrically connected to the first conductor and the second conductor, respectively. The light source module according to claim 2.   The third connector and the fourth connector are provided so as to protrude from the surface of the circuit base, respectively, include openings, and the first connector and the second connector are inserted into the third connector and the fourth connector, respectively. The light source module according to claim 1, wherein the light source module can be fitted to each other and electrically connected to the third connector and the fourth connector.   The light source module according to claim 4, wherein each of the third connector and the fourth connector includes a pair of positive and negative electrical input / output terminals.   2. The light source module according to claim 1, wherein the storage groove has a bottom surface made of the first surface and two side walls adjacent to edges of two parallel opposing long sides on the bottom surface of the storage groove.   The light source module according to claim 1, wherein the light source is an organic light emitting diode or an inorganic light emitting diode.   2. The light source module according to claim 1, further comprising a reflective layer provided on the first surface in the storage groove and configured to reflect light from the light source.   The light source module according to claim 1, wherein the light emitting base is integrally formed with an aluminum strip.   The light source module according to claim 1, further comprising a heat sink sandwiched between the light emitting base and the circuit base.

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