CN201083918Y - Light source device for backlight module - Google Patents

Abstract

The utility model relates to a light source device with a backlight module, comprising at least two circuit boards, and a plurality of light sources positioned on the circuit boards, a first conductive component and a second conductive component capable of mutual combination and electrical connection are arranged on the edges of various positions of the circuit boards, every two circuit boards can be connected in series or in parallel through the mutual combination of the first conductive component and the second conductive component. The utility model has the advantages of producing certain mini circuit boards only, and positioning a plurality of light sources on the circuit boards with small area, while more light sources are needed, connecting the combination circuit boards directly, so as to realize the aim of expanding the light sources.

Description

Light source device for backlight module

technical field

The utility model relates to a backlight module, in particular to a light source device of the backlight module.

Background technique

Due to its small size and low power consumption, LEDs (light emitting diodes) have already become indispensable optoelectronic components in daily life. In the era of high informatization and advanced materials that make the brightness of LEDs higher, the application fields of LEDs are becoming wider and wider, no longer limited to indoors, and then moving towards the development of outdoor displays, such as the third brake light, traffic lights, etc. Signs and outdoor billboards, etc.

The basic structure of the LED is an electroluminescent semiconductor material placed on a leaded shelf, then sealed with epoxy resin around it to protect the inner core wire. At present, there are many types of LEDs, such as light bulb type, flat type, ... and so on; because the brightness of a single LED for lighting or warning purposes is limited, it is usually used as the above-mentioned purposes, it is necessary to gather many LEDs together to produce enough Brightness and visual effects.

Backlight modules in the prior art use LEDs as light source devices. When a large number of LEDs are assembled together, the pins of the LEDs are inserted into the conductive contacts of the circuit board. The more LEDs there are, the required circuit The larger the board area, but the manufacturing difficulty and cost of large-sized circuit boards are higher, and the stability is also poorer.

Contents of the invention

The technical problem to be solved by the utility model is to provide a light source device of a backlight module, aiming at solving the above-mentioned problems.

In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

The utility model comprises: at least two circuit boards, and a plurality of light sources arranged on the circuit boards. The edges of different positions of the circuit boards are respectively provided with a first conductive component and a second conductive component that can be combined and electrically connected to each other. The two circuit boards can be connected in series or/and in parallel through the combination of the first conductive component and the second conductive component.

Compared with the prior art, the beneficial effect of the utility model is that only a small-area circuit board of a specific specification needs to be manufactured, and multiple light sources are arranged on the small-area circuit board. Connect the combined circuit board to achieve the purpose of amplifying the light source.

Description of drawings

Fig. 1 is a plane exploded schematic diagram showing the embodiment of the utility model in which multiple circuit boards with light sources are connected in series with conductive metal rods and conductive metal holes;

Figure 2 is a schematic diagram of the assembled components of Figure 1;

Fig. 3 is an exploded schematic diagram showing an embodiment of the utility model in which a plurality of circuit boards provided with light sources are connected in series with complementary connectors;

Fig. 4 is a schematic diagram of the assembled components of Fig. 3;

Fig. 5 is an exploded plan view showing one embodiment of the utility model connected in series with an interface connector between two circuit boards;

Fig. 6 is an exploded plan view showing another embodiment of the utility model connected in series with an interface connector between two circuit boards;

Fig. 7 is a plane exploded view showing yet another embodiment of the utility model connected in series with an interface connector between two circuit boards;

Fig. 8 shows an embodiment of the serially connected light source device of the present invention installed on the side of the light guide plate;

FIG. 9 is a schematic diagram showing an embodiment of the present invention in which a first conductive component and a second conductive component are respectively arranged at corresponding positions on one side of two circuit boards so that the two circuit boards can be connected in parallel.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

The main purpose of this utility model is to solve the problem of the light source device of the backlight module in the prior art. If a large number of light sources are needed, a circuit board with a larger area must be produced in accordance with the need, so that the difficulty and difficulty of manufacturing the circuit board are increased. Cost, while reducing the stability of the circuit board and other issues.

The utility model is characterized in that a small-area circuit board with specific specifications is manufactured, and then at least two sides of the circuit board are provided with first and second conductive components that can be electrically connected to each other, and the first and second conductive components are connected to each other. , to expand the area of the circuit board and increase the number of light sources at the same time; or additionally provide an interface connector that can be electrically connected to the first and second conductive components, and use the interface connector to connect two small-area circuit boards to obtain Light source devices of any length and area can be connected in series to achieve the purpose of reducing manufacturing costs and improving the stability of the circuit board.

The utility model is that when the circuit boards can be directly connected, the first conductive component and the second conductive component can be respectively a conductive metal rod extending a length and a conductive metal hole extending a depth; they can also be mutually assembled connector. Based on the purpose of connecting the circuit boards in series in a long strip shape, the first conductive component and the second conductive component are arranged on two symmetrical sides of the circuit board.

The utility model is that when the circuit board is connected by an interface connector, the first conductive component and the second conductive component of the circuit board can respectively be a conductive metal rod extending a certain length and a conductive metal hole extending a certain depth. The conductive part is respectively a conductive metal hole and a conductive metal rod that can be complementary to the conductive metal rod and the conductive metal hole; or the first conductive component and the second conductive component of the circuit board can both be conductive metal rods extending a length, The conductive parts on both sides of the connector are conductive metal holes that can be complementary to the conductive metal rod; or the first conductive component and the second conductive component of the circuit board can be conductive metal holes that extend to a certain depth. The conductive parts on the side are all conductive metal rods that can complement the conductive metal hole.

It can be seen from FIG. 1 that conductive metal rods 11 extending a length as the first conductive component and conductive metal holes 12 extending a depth as the second conductive component can be provided on opposite sides of the circuit board 1 combined with a plurality of light sources 2. , the conductive metal rod 11 and the conductive metal hole 12 have the effect of complementary insertion and electrical connection, so the conductive metal rod 11 and the conductive metal hole 12 of the two circuit boards can be inserted into each other and connected in series (as shown in Figure 2 ). The conductive metal rod 11 can be a conductive terminal (commonly known as a gold finger) located on the edge of the circuit board; the conductive metal hole 12 can be an electrical connection located on the edge of the circuit board for plugging in with the conductive terminal .

It can be seen from FIG. 3 that connectors 13A and 13B that can be electrically connected to each other can be respectively provided on opposite sides of the circuit board 1 combined with a plurality of light sources 2, so that the connectors 13A and 13B of the two circuit boards can be connected in series (such as Figure 4), to expand the number of light sources.

The third embodiment of the present utility model can be connected between two circuit boards 1 through another independent interface connector 3 to be connected in series to form a light source device of a backlight module; there can be several implementations, for example, as shown in FIG. 5 As shown, conductive metal rods 11 and conductive metal holes 12 can be respectively provided on opposite sides of the circuit board 1, and conductive metal rods 11 and conductive metal holes 12 that can be electrically connected to the conductive metal rods 11 and conductive metal holes 12 are provided on both sides of the interface connector 3 The hole 32 and the conductive metal rod 31 are connected in series between the two circuit boards 1 through the interface connector 3 .

It can be seen from FIG. 6 that conductive metal rods 11 extending a certain length can be provided on opposite sides of the circuit board 1, and conductive metal holes 32 that can be electrically connected to the conductive metal rods 11 are provided on both sides of the interface connector 3. , connected between the two circuit boards 1 through the interface connector 3 and connected in series.

Fig. 7 shows yet another method, conductive metal holes 12 extending to a certain depth can be provided on opposite sides of the circuit board 1, and the two sides of the interface connector 3 are provided with electrical connections to the conductive metal holes 12. The conductive metal rod 31 is connected between the two circuit boards 1 through the interface connector 3 and connected in series.

Fig. 8 shows the serially connected light source device of the present invention, which is installed on the side of the light guide plate 4, and the light can be injected into the light guide plate and guided.

In addition, FIG. 9 shows that the utility model can respectively set the above-mentioned first conductive component and second conductive component that can be complementary connected at corresponding positions on one side of the two circuit boards 1, so that the two circuit boards can be connected in parallel. Even, the present utility model can also arrange the first conductive component and the second conductive component on both symmetrical sides of a circuit board 1, and simultaneously set the first conductive component or the second conductive component on the other side, and another circuit The second conductive component and the first conductive component are arranged on the symmetrical sides of the board respectively, and the second conductive component or the first conductive component is arranged on the other side, so that two circuit boards can be connected in series and in parallel at the same time.

The above descriptions are only preferred embodiments for explaining the utility model, and are not intended to limit the utility model in any form; so any modifications or changes made under the same creative spirit of the utility model , all should still be included in the intended protection scope of the present utility model.

Claims (10)

1. A light source device of a backlight module, comprising at least two circuit boards, and a plurality of light sources arranged on the circuit boards, characterized in that: The edges of different positions of the circuit board are respectively provided with a first conductive component and a second conductive component that can be combined and electrically connected to each other, and two circuit boards can be connected in series through the combination of the first conductive component and the second conductive component. connected or/and connected in parallel. 2 . The light source device of a backlight module according to claim 1 , wherein the first conductive component and the second conductive component are complementary conductive metal rods and conductive metal holes, respectively. 3. The light source device of a backlight module according to claim 1, wherein the first conductive component and the second conductive component are respectively complementary connectors. 4. The light source device of a backlight module according to claim 1, 2 or 3, wherein the first conductive component and the second conductive component are arranged on two symmetrical sides of the circuit board. 5. The light source device of a backlight module according to claim 1, 2 or 3, wherein the first conductive component and the second conductive component are respectively arranged at corresponding positions on one side of the two circuit boards. 6. The light source device of the backlight module according to claim 1, 2 or 3, characterized in that: the first conductive component and the second conductive component are respectively arranged on two symmetrical sides of the two circuit boards that can be connected in series, and One side of the two circuit boards that can be connected in parallel. 7. The light source device of the backlight module according to claim 1, further comprising at least one interface connector, the two sides of the interface connector are respectively provided with the first conductive component and the second conductive component. A conductive part that is electrically connected. 8. The light source device of the backlight module according to claim 7, wherein the first conductive component and the second conductive component are respectively a conductive metal rod extending a certain length and a conductive metal hole extending a certain depth. The conductive parts on both sides of the interface connector are respectively a conductive metal hole and a conductive metal rod complementary to the conductive metal rod and the conductive metal hole. 9. The light source device of the backlight module according to claim 7, wherein the first conductive component and the second conductive component are both conductive metal rods extending a certain length, and the conductive parts on both sides of the interface connector , are all conductive metal holes that can complement the conductive metal rod. 10. The light source device of the backlight module according to claim 7, wherein the first conductive component and the second conductive component are both conductive metal holes extending to a certain depth, and the conductive parts on both sides of the interface connector , are all conductive metal rods that can complement the conductive metal hole.

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