Power supply device and lamp assembly including same

Abstract

The utility model relates to a power supply device and a lamp assembly comprising the same. The power supply device comprises a flexible board which comprises a first surface and a second surface arranged opposite to the first surface; the connection terminal is arranged on the first surface of the flexible plate; and the fixing plate is arranged on the second surface of the flexible plate and is arranged opposite to the connecting terminal.

Description

Technical Field

[0001] The utility model relates to a power supply device and a lamp assembly including the power supply device. Background Art

[0002] Generally, a lamp of a vehicle (more specifically, a headlamp of a vehicle) may include a plurality of light sources, a plurality of printed circuit boards (PCBs) coupled to the light sources to control the plurality of light sources, a plurality of wires connected to an external device to supply power to the PCBs, and a lamp housing that houses the light sources, the PCBs, and the wires.

[0003] Since the number of wires corresponds to the number of light sources, the PCB and the wires may be incorrectly assembled during the process of arranging the wires suitable for the light sources on the PCB. Due to the rearrangement of the wires, this may be time-consuming.

[0004] In addition, since a large number of wires should be used to match the number of light sources, the manufacturing cost is increased, and there is a problem of reduced productivity because the assembly process of arranging the wires on the PCB is performed for a long time.

[0005] Therefore, there is an increasing demand for a configuration that can replace many wires. Summary of the Utility Model

[0006] In one embodiment, a power supply device includes: a flexible board including a first surface and a second surface disposed opposite to the first surface; connection terminals disposed on the first surface of the flexible board; and a fixing board disposed on the second surface of the flexible board and disposed opposite to the connection terminals.

[0007] The connection terminals may be disposed at a position overlapping the fixing board in a direction from the first surface to the second surface.

[0008] The flexible board may be disposed in a rectangular shape, and the flexible board may include a first connection portion and a second connection portion. The connection terminals and the fixing board are disposed on the first connection portion, and the second connection portion protrudes from a part of the first connection portion in a direction perpendicular to the setting direction of the first connection portion, or protrudes in a layout direction the same as the setting direction of the first connection portion.

[0009] The first connection portion of the flexible board may include a first area and a second area. The connection terminals and the fixing board are disposed in the first area, and the second area is disposed between the first areas to connect the first areas.

[0010] The power supply device may further include a connection module connecting the flexible board and an external device, and the connection module may transmit the power transmitted from the external device to the flexible board.

[0011] The flexible board may include a third connection portion provided at an end of the second connection portion, and the flexible board may be connected to the connection module.

[0012] The power supply device may further include a support board, the support board is provided on a surface of the third connection portion where the connection module is not provided, and the support board may support the third connection portion.

[0013] In another embodiment, a lamp assembly includes: a rigid board on which a connection socket is provided; a radiator supporting the rigid board; and a power supply device connected to the rigid board to transmit power to the rigid board. The power supply device may include: a flexible board having a first surface and a second surface disposed opposite to the first surface; connection terminals provided on the first surface of the flexible board; and a fixing board provided on the second surface of the flexible board and disposed opposite to the connection terminals.

[0014] The connection terminals may be provided at a position overlapping the fixing board in a direction from the first surface to the second surface.

[0015] The rigid board may include a rigid printed circuit board (rigid PCB) coupled to the radiator.

[0016] The flexible board may be arranged in a rectangular shape, and the flexible board includes a first connection portion and a second connection portion. The connection terminals and the fixing board are provided on the first connection portion, and the second connection portion protrudes from a part of the first connection portion in a direction perpendicular to the setting direction of the first connection portion.

[0017] The first connection portion of the flexible board may include a first region and a second region. The connection terminals and the fixing board are provided in the first region, and the second region is provided between the first regions to connect the first regions.

[0018] The first region of the first connection portion of the flexible board may be provided on the connection socket of the rigid board.

[0019] The power supply device may further include a connection module connecting the flexible board and an external device, and the connection module may transmit the power transmitted from the external device to the flexible board.

[0020] The flexible plate may include a third connection portion provided at an end of the second connection portion, and the flexible plate may be connected to the connection module.

[0021] The rigid plate may include a light source that emits light by power transmitted from the connection socket, and the power supply device may further include an integrated circuit provided on the third connection portion to control the light source.

[0022] The integrated circuit may include a processor. The integrated circuit may be connected to a circuit formed on the third connection portion, and the processor may be configured to control turning on and off of the light source of the rigid plate connected to the power supply device. Description of the Drawings

[0023] By referring to the accompanying drawings and describing in detail the exemplary embodiments of the present invention, the above and other objects, features, and advantages of the present invention will become more apparent to those of ordinary skill in the art. In the drawings:

[0024] Figure 1 is a bottom perspective view of a lighting fixture assembly according to an embodiment of the present invention;

[0025] Figure 2 is a rear perspective view of a lighting fixture assembly according to an embodiment of the present invention;

[0026] Figure 3 is a view showing a rigid plate coupled to a radiator;

[0027] Figure 4 is an exploded perspective view of a power supply device; and

[0028] Figure 5 is a rear perspective view of a power supply device. Detailed Description of the Invention

[0029] Since various modifications can be made and various embodiments can be achieved in the present disclosure, specific embodiments are shown in the drawings and described in the following detailed description. However, it should be understood that the present disclosure is not limited to the specific embodiments and includes all modifications, equivalents, and substitutions falling within the spirit and scope of the present disclosure. The same reference numerals are used for the same elements when describing each drawing.

[0030] Terms such as "first", "second", "A", "B", etc. may be used to describe various components, but these components should not be limited by these terms. These terms are only used to distinguish one component from another. For example, without departing from the scope of the present disclosure, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term "and / or" includes combinations of multiple related items described herein or any one of the multiple related items.

[0031] When the first component is referred to as being "coupled" or "connected" to the second component, it should be understood that the first component can be directly coupled or connected to the second component, or a third component can be inserted therebetween. Conversely, when the first component is referred to as being "directly coupled" or "directly connected" to the second component, it should be understood that no component is inserted therebetween.

[0032] In the description of the embodiments, when any component is described as being formed "on (above) or under (below)" another component, "on (above) or under (below)" includes not only the case where the two components are in direct contact with each other, but also the case where one or more other components are (indirectly) disposed and formed between the two components. In addition, when expressed as "on (above) or under (below)", this can include the meaning in both the upward direction and the downward direction based on one component.

[0033] The terms used herein are only for describing certain embodiments and are not intended to limit the present disclosure. As used herein, the singular expressions are also intended to include the plural forms unless the context clearly indicates otherwise. It should be understood that when used herein, the terms "comprises" and / or "comprising" specify the presence of the described features, integers, steps, operations, elements, components, or combinations thereof, but do not preclude the presence or addition of one or more features, integers, steps, operations, elements, components, or combinations thereof.

[0034] Unless otherwise defined, all terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure pertains. Terms such as those defined in a common dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art and should not be interpreted as having an ideal or overly formal meaning unless expressly defined herein.

[0035] Hereinafter, the power supply device and the lighting fixture assembly including the power supply device will be described in more detail with reference to the accompanying drawings. The same or corresponding components will be denoted by the same reference numerals, and redundant descriptions will be omitted.

[0036] Figure 1 is a bottom perspective view of a lighting fixture assembly according to an embodiment of the present utility model. Figure 2 is a rear perspective view of a lighting fixture assembly according to an embodiment of the present utility model.Figure 3 This is a view showing a rigid plate connected to a radiator. Figure 4 This is an exploded perspective view of a power supply device. Figure 5 This is a rear perspective view of the power supply device.

[0037] Refer to Figures 1 to 5 As shown in , a lamp assembly 1 according to an embodiment of the present invention can be disposed inside a lamp, and more specifically, inside a lamp housing of a vehicle headlamp. The lamp assembly 1 includes a rigid plate 10 provided with a connection socket 12, a radiator 20 supporting the rigid plate 10, and a power supply device 100 connected to the rigid plate 10 and transmitting power to the rigid plate 10.

[0038] The rigid plate 10 may include a rigid printed circuit board (rigid PCB). The rigid plate 10 may have a rectangular shape. The rigid plate 10 may be connected to the radiator 20. As Figures 1 to 3 shown, a plurality of rigid plates 10 are provided on the radiator 20, and the plurality of rigid plates 10 may be provided on a seating surface 22 of the radiator 20, which will be described below.

[0039] The rigid plate 10 may include a connection socket 12 and a light source 14.

[0040] The connection socket 12 may be provided on one side of each rigid plate 10. The connection socket 12 may be provided on a surface of the rigid plate 10 opposite to the surface that is connected to the seating surface 22 of the radiator 20, which will be described below. The connection socket 12 may be connected to a connection terminal 120 of the power supply device 100 to be described below, and may receive power transmitted through the connection terminal 120.

[0041] The light source 14 is provided on one side of each rigid plate 10 and is spaced apart from the connection socket 12. The light source 14 may include a light emitting diode (LED). The light source 14 may emit light by the power transmitted to the connection socket 12.

[0042] The radiator 20 may support the rigid plate 10 and dissipate heat generated from the light source 14. The radiator 20 may support a plurality of rigid plates 10. In this embodiment, as Figures 1 to 3 shown, one radiator 20 is provided in the lamp housing, but the present invention is not limited thereto. Two or more radiators 20 may be provided in the lamp housing.

[0043] The radiator 20 may include a seating surface 22 and an inclined surface 24.

[0044] As Figure 1As shown, the placement surface 22 on which the rigid plate 10 is placed may have a length in the longitudinal direction. In addition, the width of the placement surface 22 may correspond to the width of the rigid plate 10. Protrusions may be formed on the placement surface 22 and coupled to the rigid plate 10 to fix the rigid plate 10. A plurality of placement surfaces 22 are provided, and the plurality of placement surfaces 22 may be spaced apart from each other.

[0045] The inclined surface 24 may be inclinedly provided from the lateral end of the placement surface 22. The inclined surface 24 may connect the placement surface 22. A plurality of inclined surfaces 24 are provided, and the plurality of inclined surfaces 24 may be spaced apart from each other, with the placement surface 22 inserted therebetween. The placement surface 22 and the inclined surface 24 may be alternately arranged in series.

[0046] In this embodiment, the heat sink 20 has been exemplified as having a shape in which the placement surface 22 and the inclined surface 24 are alternately arranged in series, but is not limited thereto. The heat sink 20 may have a shape without the inclined surface 24, such that the placement surfaces 22 are arranged collinearly. Therefore, the second region 112b of the first connection portion 112 of the flexible plate 110 to be described below may be provided on or between the placement surfaces 22.

[0047] The power supply device 100 may be connected to each of the external device and the rigid plate 10, and transmit the power transmitted from the external device to the rigid plate 10. The power supply device 100 may include a flexible plate 110, a connection terminal 120, a fixing plate 130, a connection module 140, and a support plate 150.

[0048] The flexible plate 110 may include a flexible PCB (FPCB) having a flexible material. The flexible plate 110 may be provided on one side of the rigid plate 10. The flexible plate 110 may include a first surface 110a provided with a circuit and a second surface 110b opposite to the first surface 110a and not provided with a circuit.

[0049] The flexible plate 110 may include a first connection portion 112, a second connection portion 114, and a third connection portion 116.

[0050] The first connection portion 112 may be set in a rectangular shape. The first connection portion 112 may have a length from Figure 1 the outermost placement surface 22 of the heat sink 20 shown to another outermost placement surface 22, but the present invention is not limited thereto. The connection terminal 120 and the fixing plate 130 may be provided on the first connection portion 112.

[0051] The second connection part 114 can be disposed between the first connection part 112 and the third connection part 116 and connect the first connection part 112 and the third connection part. The second connection part 114 can protrude from a part of the first connection part 112 in a direction perpendicular to the setting direction of the first connection part 112, or protrude in an arrangement direction the same as the setting direction of the first connection part.

[0052] The third connection part 116 can be disposed at an end of the second connection part 114. The third connection part 116 can be connected to the connection module 140 and transmit the power transmitted from the connection module 140 to the second connection part 114.

[0053] The connection terminal 120 can be disposed on the first surface 110a of the flexible board 110. The connection terminal 120 can be connected to the connection socket 12 in a state where the connection terminal 120 is disposed on the first surface 110a of the flexible board 110. Due to the connection between the connection terminal 120 and the connection socket 12, power is transmitted to the rigid board 10, and the light source 14 can emit light. The connection terminal 120 can be disposed on each rigid board 10. A plurality of connection terminals 120 can be disposed to be connected to a plurality of connection sockets 12. The plurality of connection terminals 120 can be spaced apart from each other on the first surface 110a of the flexible board 110. The distance between the connection terminals 120 can correspond to the distance between the connection sockets 12 of the rigid board 10.

[0054] The fixing board 130 can be disposed on the second surface 110b of the flexible board 110. In a state where the fixing board 130 is disposed on the second surface 110b, the fixing board 130 can be disposed opposite to the connection terminal 120. A plurality of fixing boards 130 can be provided, and the plurality of fixing boards 130 can be spaced apart from each other on the second surface 110b of the flexible board 110.

[0055] The fixing board 130 can support the first connection part 112 of the flexible board 110 connected to the connection terminal 120, so that the connection terminal 120 and the connection socket 12 of the rigid board 10 are smoothly connected. The fixing board 130 can suppress the movement of the first connection part 112 of the flexible board 110, and the flexible board 110 is easily bent due to its soft nature. Therefore, during the manufacturing process, the connection terminal 120 can be smoothly processed by the fixing board 130.

[0056] In addition, the fixing plate 130 may be disposed at a position overlapping with the connection terminal 120 in a direction from the first surface 110a to the second surface 110b. In addition, the connection terminal 120 and the fixing plate 130 may be spaced apart from each other, and the first connection portion 112 of the flexible plate 110 is disposed therebetween. As a result, the fixing plate 130 disposed on the second surface 110b presses the flexible plate 110 coupled to the connection socket 12 of the rigid plate 10 and the connection terminal 120 disposed on the first surface 110a.

[0057] Accordingly, the fixing plate 130 may prevent the connection terminal 120 from shaking, so that the connection socket and the connection terminal 120 may maintain a stable coupling state. In addition, in order to stably transmit the power transmitted from the flexible plate 110 through the connection module 140 to the connection terminal 120, the fixing plate 130 may prevent the flexible plate 110 from shaking.

[0058] The connection module 140 may connect the flexible plate 110 and an external device. More specifically, the connection module 140 may be disposed on the third connection portion 116 of the flexible plate 110. In addition, the connection module 140 may be in contact with the first surface 110a of the flexible plate. Accordingly, the power transmitted from the external device may be transmitted to the flexible plate 110 through the connection module 140.

[0059] The support plate 150 may be disposed on a surface of the third connection portion 116 of the flexible plate 110 where the connection module 140 is not disposed. More specifically, the support plate 150 may be coupled to the second surface 110b of the flexible plate 110. The support plate 150 may support the third connection portion 116. In addition, the support plate 150 may be coupled to the heat sink 20 in a state where the support plate 150 supports the third connection portion 116 of the flexible plate 110. Accordingly, the third connection portion 116 of the flexible plate 110 may be fixed to the heat sink 20 through the support plate 150.

[0060] Hereinafter, the first connection portion 112 of the flexible plate 110 will be described in detail.

[0061] The first connection portion 112 of the flexible plate 110 may include a first region 112a and a second region 112b.

[0062] When the connection terminal 120 of the power supply device 100 is connected to the connection socket 12 of the rigid plate 10 in the first region 112a, the first region 112a may be provided on the rigid plate 10. More specifically, the first region 112a may be provided on the connection socket 12 of the rigid plate 10. The first region 112a may be provided between the connection terminal 120 of the power supply device 100 and the fixing plate 130. The first region 112a may have a shape corresponding to the outer shape of the fixing plate 130, but the present utility model is not limited thereto. A plurality of first regions 112a are provided, and the distance between the first regions 112a may correspond to the distance between the rigid plates 10. In addition, any one of the plurality of first regions 112a may be connected to the second connection portion 114, but the present utility model is not limited thereto.

[0063] The second region 112b may be provided between the first regions 112a. The second region 112b may connect one first region 112a to another first region 112a adjacent to the one first region 112a.

[0064] The second region 112b may be provided obliquely from the end of the first region 112a, but the present utility model is not limited thereto. When the first region 112a is provided on the rigid plate 10, the second region 112b may be provided on the inclined surface 24 of the radiator 20. The width of the second region 112b may be smaller than the width of the first region 112a, but the present utility model is not limited thereto.

[0065] In addition, the second region 112b provided between the first regions 112a is fastened by the first region 112a pressed by the fixing plate 130, so that the second region 112b can be prevented from shaking. Therefore, the power transmitted to the third connection portion 116 of the flexible plate 110 through the connection module 140 can be stably transmitted to the second region 112b through the first region 112a.

[0066] Different from the conventional method of using multiple wires to supply power to the rigid plate 10 in the lamp assembly, the lamp assembly 1 according to an embodiment of the present utility model uses the integrated flexible plate 110 to transmit power to the rigid plate 10. Therefore, the cost and time for providing multiple wires can be reduced, and the assembly time for connecting multiple wires to the rigid plate 10 and external devices can be reduced.

[0067] In addition, since the lamp assembly 1 according to an embodiment of the present utility model uses the integrated flexible plate 110 instead of multiple conventional wires, misassembly that occurs when assembling multiple conventional wires to the rigid plate 10 can be prevented.

[0068] Hereinafter, the integrated circuit (IC) 160 included in the power supply device 100 will be described.

[0069] Reference Figure 5 Figure 5 , the power supply device 100 may further include an IC 160. The IC 160 is a complex electronic device having a super-small structure, in which a plurality of electronic circuit components are connected to or coupled to a single board in an inseparable state, and the IC 160 may be disposed on the third connection portion 116 of the flexible board 110. More specifically, the IC 160 may be coupled to the first surface 110a of the flexible board 110 on the third connection portion 116 of the flexible board 110. The IC 160 may be connected to a circuit formed on the third connection portion 116 and control the turning on of the light source 14 of the rigid board 10 connected to the power supply device 100.

[0070] In this embodiment, an example in which the IC 160 is coupled to the first surface 110a of the flexible board 110 on the third connection portion 116 of the flexible board 110 is described, but the present invention is not limited thereto, and the IC 160 may be integrally disposed on the third connection portion 116 of the flexible board 110.

[0071] According to an embodiment of the present invention, a plurality of connection terminals use separately arranged integrated FPCBs, which can reduce the possibility of misassembly compared to using multiple wires.

[0072] In addition, according to an embodiment of the present invention, the cost of providing multiple wires can be reduced, and the assembly process can be simplified, thereby improving productivity.

[0073] Although the above description has been made with reference to embodiments of the present disclosure, those skilled in the art will be able to understand that various modifications and changes can be made to the present disclosure without departing from the spirit and scope of the present disclosure. In addition, the differences associated with these modifications and changes should be construed as being included within the scope of the present disclosure.

[0074] Cross-reference to related applications

[0075] This application claims priority to Korean Patent Application No. 10-2022-0156124, filed on Nov. 21, 2022, the entire disclosure of which is incorporated herein by reference.

Claims

1. A power supply device, characterized in that, The power supply device includes: A flexible board, the flexible board including a first surface and a second surface disposed opposite to the first surface; Connection terminals, the connection terminals being disposed on the first surface of the flexible board; and A fixing board, the fixing board being disposed on the second surface of the flexible board and disposed opposite to the connection terminals.

2. The power supply device according to claim 1, characterized in that The connection terminals are disposed at positions overlapping with the fixing board in a direction from the first surface to the second surface.

3. The power supply device according to claim 2, wherein The flexible board is set in a rectangular shape, and Wherein, the flexible board includes: A first connection portion, the connection terminals and the fixing board being disposed on the first connection portion; and A second connection portion, the second connection portion protruding from a part of the first connection portion in a direction perpendicular to the setting direction of the first connection portion, or protruding in the same layout direction as the setting direction of the first connection portion.

4. The power supply device according to claim 3, characterized in that, The first connection portion of the flexible board includes: A first area, the connection terminals and the fixing board being disposed in the first area; and A second area, the second area being disposed between the first areas to connect the first areas.

5. The power supply device according to claim 4, characterized in that, The power supply device further includes: A connection module connecting the flexible board and an external device, Wherein, the connection module transmits the power transmitted from the external device to the flexible board.

6. The power supply device according to claim 5, wherein The flexible board includes a third connection portion disposed at an end of the second connection portion, and Wherein, the flexible board is connected to the connection module.

7. The power supply device according to claim 6, characterized in that, The power supply device further includes: A support board, the support board being disposed on a surface of the third connection portion where the connection module is not disposed, and Wherein, the support board supports the third connection portion.

8. A luminaire assembly including a power supply device, characterized in that, The lamp assembly including the power supply device includes: A rigid board, a connection socket being disposed on the rigid board; A radiator, the radiator supporting the rigid board; and A power supply device, the power supply device being connected to the rigid board to transmit power to the rigid board, Wherein, the power supply device includes: A flexible board, the flexible board having a first surface and a second surface disposed opposite to the first surface; Connection terminals, the connection terminals being disposed on the first surface of the flexible board; and A fixing board, the fixing board being disposed on the second surface of the flexible board and disposed opposite to the connection terminals.

9. The luminaire assembly including a power supply device according to claim 8, wherein, The connection terminals are disposed at positions overlapping with the fixing board in a direction from the first surface to the second surface.

10. The luminaire assembly including a power supply device according to claim 8, characterized in that, The rigid board includes a rigid printed circuit board, i.e., a rigid PCB, coupled to the radiator.

11. The luminaire assembly including a power supply device according to claim 9, characterized in that, The flexible board is set in a rectangular shape, and the flexible board includes: A first connection portion, the connection terminals and the fixing board being disposed on the first connection portion; and A second connection portion, the second connection portion protruding from a part of the first connection portion in a direction perpendicular to the setting direction of the first connection portion.

12. The luminaire assembly including a power supply device according to claim 11, wherein, The first connection portion of the flexible board includes: A first region, in which the connection terminal and the fixing plate are disposed; and A second region, which is disposed between the first regions to connect the first regions.

13. The luminaire assembly including a power supply device according to claim 12, wherein, The first region of the first connection portion of the flexible plate is disposed on the connection socket of the rigid plate.

14. The luminaire assembly including a power supply device according to claim 11, wherein The power supply device further includes a connection module connecting the flexible plate and an external device, and Wherein, the connection module transmits the power transmitted from the external device to the flexible plate.

15. The luminaire assembly including a power supply device according to claim 14, wherein The flexible plate includes a third connection portion disposed at an end of the second connection portion, and Wherein, the flexible plate is connected to the connection module.

16. The luminaire assembly including a power supply device according to claim 15, wherein The rigid plate includes a light source that emits light by the power transmitted from the connection socket, and Wherein, the power supply device further includes an integrated circuit disposed on the third connection portion to control the light source.

17. The luminaire assembly including a power supply device according to claim 16, wherein The integrated circuit includes at least one processor, Wherein, the integrated circuit is connected to a circuit formed on the third connection portion, and Wherein, the at least one processor is configured to control the turning on and off of the light source of the rigid plate connected to the power supply device.

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