Light source assembly and vehicle-mounted lamp

Abstract

The utility model relates to a light source assembly and a vehicle-mounted lamp, and belongs to the technical field of vehicle lamps. A light source assembly includes: a circuit board; the output light source is arranged on the circuit board; the power assembly and the output light source are arranged on the same circuit board, and the power assembly is in communication connection with the control assembly through a connecting cable so as to drive the output light source to be turned on or off. By arranging the control assembly and the power assembly in a dispersed mode, heat dissipation can be conducted on the light source assembly independently, the size of the light source assembly is effectively reduced, the heat dissipation effect is improved, and the heat dissipation cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle lamps, in particular to a light source assembly and a vehicle-mounted lamp. BACKGROUND

[0002] In recent years, with the electrification and intelligentization trend of the whole vehicle, the electronic devices of the whole vehicle are becoming more and more complex, and people's requirements for the modeling of the whole vehicle are also becoming higher and higher. As the vehicle lamps related to the modeling, the vehicle lamps are becoming more and more diversified, resulting in the increase of the overall cost of the vehicle lamps.

[0003] The existing vehicle lamp structure usually integrates the control assembly, the power component and the light source on a unified circuit board, which leads to the problem of too large volume of the whole vehicle lamp structure, which is not convenient for installation. Moreover, due to the integrated arrangement of the control assembly and the power component, a larger heat dissipation device needs to be used, which not only has high cost, but also has poor heat dissipation effect. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the embodiment of the present application is to provide a light source assembly and a vehicle-mounted lamp to solve the above technical problems.

[0005] The embodiment of the present application provides a light source assembly applied to a vehicle-mounted lamp, which comprises: a circuit board; an output light source arranged on the circuit board; and a power assembly arranged on the same circuit board as the output light source, wherein the power assembly is in communication connection with a control assembly through a connecting cable to drive the output light source to turn on and off.

[0006] Optionally, the light source assembly further comprises a heat dissipation assembly connected to the circuit board to dissipate heat for the circuit board.

[0007] Optionally, the heat dissipation assembly comprises a plurality of heat dissipation fins arranged at intervals.

[0008] Optionally, the light source assembly further comprises a mounting bracket, the circuit board and the heat dissipation assembly are connected, the circuit board is detachably connected with the mounting bracket, and the connection part of the circuit board and the mounting bracket is coated with heat dissipation glue.

[0009] Optionally, the power assembly comprises a first signal processing module and a driving module, the input end of the driving module is in communication connection with the control assembly through the first signal processing module, and the output end of the driving module is connected to the output light source.

[0010] Optionally, the first signal processing module and the driving module are located on both sides of the circuit board with the output light source.

[0011] Optionally, the driving module comprises a Boost circuit and / or a Buck circuit.

[0012] Optionally, the control assembly comprises a control circuit board, a central control module, a power supply driving module and a second signal processing module, the central control module, the power supply driving module and the signal processing module are arranged on the control circuit board, the power supply driving module is connected with the central control module and the power assembly respectively, and the central control module is connected with an external control unit and the power assembly through the second signal processing module.

[0013] Optionally, the control assembly further comprises a filter module, and the filter module is used for adjusting the current of the power supply driving module.

[0014] In another aspect, the utility model embodiment further provides a vehicle-mounted lamp, which comprises the light source assembly.

[0015] The utility model provides a light source assembly, it includes: circuit board, output light source is arranged on the circuit board, power assembly is arranged on the same circuit board with output light source, wherein, power assembly is connected with control assembly communication through connecting cable, to drive output light source bright and dark. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiment of the present application, the following will briefly introduce the drawings needed to be used in the embodiment of the present application, it should be understood that the following drawings only show some embodiments of the present application, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0017] Figure 1 The light source assembly of the light source assembly provided in the embodiment of the present application is exploded;

[0018] Figure 2 The control module diagram of the light source assembly provided in the embodiment of the present application is one of them;

[0019] Figure 3 The control module diagram of the light source assembly provided in the embodiment of the present application is two.

[0020] Icon: 100-control assembly;201-mounting frame;202-circuit board;203-output light source;204-power assembly;2011-radiating fin;2021-wiring head;2012-positioning column;2022-positioning hole;300-connecting cable. DETAILED DESCRIPTION

[0021] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0022] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms "inner", "outer" and the like are based on the positions or location relationships shown in the drawings, or the positions or location relationships commonly placed when the products of the present application are used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated devices or elements must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0024] The embodiment provides a light source assembly applied to a vehicle-mounted lamp, which comprises a circuit board 202, an output light source 203 arranged on the circuit board 202, and a power assembly 204 arranged on the same circuit board 202 as the output light source 203, wherein the power assembly 204 is in communication connection with a control assembly 100 through a connecting cable 300 to drive the output light source 203 to turn on and off.

[0025] Please refer to Figure 2 The control module and the power assembly 204 are independent of each other, and the control module is connected with the power assembly 204 through the connecting cable 300 to supply power for the power assembly 204 and control the working state of the output light source 203. Please refer to Figure 1The circuit board 202 can be a printed circuit board 202, which replaces the wires with printed circuits to reduce the volume of the circuit board 202 and reduce the risk of falling of the connection points. The output light source 203 is arranged on the circuit board 202 and connected with the connection cable 300 through the printed circuit on the circuit board 202 to realize the power-on and signal connection with the control assembly 100. The control assembly 100 is completely separated from the power assembly 204, and the volume of the power assembly 204 is smaller, so that the installation mode and installation position of the entire circuit board 202 and the output light source 203 are more flexible, and the circuit board 202, the power assembly 204 and the output light source 203 can be fixed on the vehicle body according to the requirements. Specifically, the output light source 203 is arranged on the circuit board 202, and when installed, only the mounting bracket 201 needs to be fixed on the vehicle body, and the light emitting direction of the output light source 203 is towards the illumination direction. Since the control assembly 100 is completely separated from the power assembly 204, the power assembly 204 can be individually cooled, thereby improving the cooling efficiency, reducing the cooling cost, and prolonging the service life of the power assembly 204.

[0026] Optionally, in some possible embodiments, the circuit board 202 is provided with a heat dissipation assembly for dissipating heat of the circuit board 202.

[0027] Please refer to Figure 2 It can be understood that the circuit of the circuit board 202 or the output light source 203 will generate heat during use, and the circuit board 202 needs to be cooled, otherwise the high temperature of the circuit board 202 may cause the output light source 203 to malfunction, and in severe cases, the electronic components may be damaged, affecting the service life of the circuit board 202, the output light source 203 and the power assembly 204. Therefore, the heat dissipation assembly is directly arranged on the mounting bracket 201 to improve the heat dissipation efficiency, thereby achieving the purpose of dissipating heat for the circuit board 202.

[0028] Optionally, in some possible embodiments, the heat dissipation assembly includes a plurality of heat dissipation fins 2011 which are arranged on the mounting bracket 201 at intervals.

[0029] Please refer to Figure 2As shown, the circuit board 202 is fixed on the mounting rack 201, and one side of the circuit board 202 is attached to the mounting rack 201. The mounting rack 201 and the circuit board 202 exchange heat through direct contact. The mounting rack 201 is provided with a plurality of heat dissipation fins 2011 arranged at intervals, which can be arranged around or on both sides of the circuit board 202. The heat dissipation fins 2011 can increase the surface area of the mounting rack 201, thereby improving the heat exchange efficiency between the mounting rack 201 and the surrounding air. When the circuit board 202 generates heat, the heat is quickly conducted to the mounting rack 201 through direct contact, and then conducted to the surrounding air through the heat exchange fins on the mounting rack 201, thereby cooling the circuit board 202. Since the control assembly 100 and the power assembly 204 are separated, only the circuit board 202 needs to be cooled, so the mounting rack 201 can be attached to the circuit board 202 to improve the cooling efficiency. At the same time, the heat dissipation fins 2011 can be directly arranged around the circuit board 202 to improve the cooling efficiency. The entire cooling assembly only covers the circuit board 202, which can effectively reduce the size of the heat sink and reduce the production cost.

[0030] Optionally, in some possible embodiments, the circuit board 202 is detachably connected to the mounting rack 201, and the connection between the circuit board 202 and the mounting rack 201 is coated with heat dissipation glue.

[0031] Please refer to Figure 2 As shown, the circuit board 202 can be fixed on the mounting rack 201 by a plurality of studs, and the bottom of the circuit board 202 is in contact with the mounting surface of the mounting rack 201 to improve the heat conduction efficiency. At the same time, heat dissipation glue is coated between the mounting rack 201 and the circuit board 202, and the heat dissipation glue is made of insulating material. On the one hand, the heat dissipation glue can assist in fixing the circuit board 202, ensure the connection strength between the circuit board 202 and the mounting rack 201, and improve the stability of the circuit board 202. On the other hand, the heat dissipation glue can fill the mounting gap between the circuit board 202 and the mounting rack 201, and discharge the gas between the circuit board 202 and the mounting rack 201, thereby improving the cooling effect.

[0032] Optionally, in some possible embodiments, the power assembly 204 includes a first signal processing module and a power regulation module, the input end of the power regulation module is electrically connected to the control assembly 100 through the first signal processing module, and the output end of the power regulation module is connected to the output light source 203.

[0033] Optionally, in some possible embodiments, the driving module includes a Boost circuit and / or a Buck circuit.

[0034] Please refer to Figure 2 and Figure 3As shown, the power component 204 comprises a power regulating module for regulating the input current and voltage to power the output light source 203 to ensure normal operation of the output light source 203. Optionally, the power regulating module can be a control chip integrated with a BOOST constant voltage and a BUCK constant current circuit. The signal input end of the power regulating module is connected with the control component 100 through the first signal processing module, and the control component 100 sends a control signal to the first signal processing module to control the power regulating module to turn on or off, i.e. to control the output light source 203 to be bright or dark.

[0035] Optionally, in some possible embodiments, the signal processing module and the power regulating module are arranged on the circuit board 202, and the signal processing module and the power regulating module are located on two sides of the circuit board 202 with the output light source 203.

[0036] Please refer to Figure 2 As shown, the signal processing module and the power regulating module are arranged at the lower end of the circuit board 202, and when the circuit board 202 is installed, the signal processing module and the power regulating module are directed towards the mounting frame 201, so as to facilitate the contact and heat exchange between the signal processing module and the power regulating module and the mounting frame 201, thereby improving the heat dissipation effect. It can be understood that the most heat-emitting component of the power component 204 is the power regulating module, and therefore the power regulating module needs to be cooled. The power regulating module is arranged on the side close to the mounting frame 201, so as to facilitate heat dissipation through the mounting frame 201 and the heat dissipation fins 2011 on the mounting frame 201, thereby improving the heat dissipation effect. The output light source 203 can adopt LED lamp beads, and the output light source 203 is arranged on the other side of the circuit board 202 to avoid the electronic components of the power regulating module blocking the output light source 203 and affecting the light output effect of the output light source 203. At the same time, the power regulating module is located between the circuit board 202 and the mounting frame 201, and the mounting frame 201 and the circuit board 202 play a packaging role to protect the power regulating module and avoid damage of the power regulating module caused by external impact.

[0037] Optionally, in some possible embodiments, the control component 100 comprises a control circuit board, a central control module, a power supply driving module and a second signal processing module, the central control module, the power supply driving module and the signal processing module are arranged on the control circuit board, the power supply driving module is connected with the central control module and the power component 204 respectively, and the central control module is connected with the external control unit and the power component 204 through the second signal processing module.

[0038] Please refer to Figure 3As shown, the control assembly 100 comprises a central control module, a power supply driving module and a second signal processing module, and the central control module, the power supply driving module and the second signal processing module are arranged on a control circuit board. Like the circuit board 202, the control circuit board can also adopt a printed circuit board 202. The control circuit board and the printed circuit board 202 are completely independent, and the control circuit board and the printed circuit board 202 can be respectively installed at different parts of the vehicle body, which is more convenient and flexible. The power supply driving module is electrically connected with the central control module and the power assembly 204, thereby supplying power for the central control module and the power assembly 204. The central control module can adopt an existing programmable control chip, and the central control module is signal connected with the external control unit and the first signal processing module of the power assembly 204 through the second signal processing module. The second signal processing module is used for receiving the control signal of the external control unit, and the control signal is sent to the first signal processing module after being processed by the central control module. After the first signal processing module receives the signal, the power adjustment module is turned on or off, thereby realizing the bright-dark control of the output light source 203. Through one external control unit, the first signal processing modules of multiple power assemblies 204 can be connected, and the control part has a high resource utilization rate, and one control operation can realize the vehicle lamp control of the whole vehicle.

[0039] Optionally, in some possible embodiments, the control assembly 100 further comprises a filtering module, and the filtering module is used for adjusting the current of the power supply driving module.

[0040] The filtering module can adopt any existing form of filtering circuit, and the filtering module is used for adjusting the driving circuit to ensure the stability of power supply. The voltage change is avoided to affect the lighting effect.

[0041] Optionally, in some possible embodiments, the circuit board 202 and the control circuit board are both provided with a wiring head 2021, and the two ends of the connecting cable 300 are detachably connected with the wiring heads 2021.

[0042] Please refer to Figure 1 As shown, the circuit board 202 and the control circuit board are provided with the same standard wiring head 2021, and the two ends of the connecting cable 300 are respectively provided with corresponding plugs. The connecting cable 300 can be directly installed by plug-in connection, thereby realizing the electrical connection between the control assembly 100 and the power assembly 204. The control assembly 100 and the power assembly 204 are independent of each other and can be separately disassembled and replaced, thereby facilitating maintenance. In use, different brightness and color power assemblies 204 can be replaced according to actual use requirements. Since the control assembly 100 can be separately disassembled, program development can be separately performed on the control assembly 100, thereby meeting different control effects and reducing subsequent development work. The unified standard wiring head 2021 is plug-and-play flexible and convenient to use.

[0043] Optionally, in some possible embodiments, the mounting frame 201 is provided with a positioning column 2012, and the circuit board 202 is provided with a positioning hole 2022, and the positioning column 2012 is clamped in the positioning hole 2022. The positioning hole 2022 plays a positioning and auxiliary fixing role, and guarantees the stability and anti-interference ability of the circuit board 202.

[0044] In conclusion, the utility model embodiment provides a light source assembly, which comprises: a control assembly 100, a connecting cable 300 and a power assembly 204, the control assembly 100 is electrically connected with the power assembly 204 through the connecting cable 300, the power assembly 204 comprises a mounting frame 201, a circuit board 202 and an output light source 203, the output light source 203 is arranged on the circuit board 202, and the circuit board 202 is arranged on the mounting frame 201. By dispersing the control assembly 100 and the power assembly 204, the power assembly 204 can be cooled separately, the volume of the power assembly 204 is effectively reduced, the cooling effect is improved, and the cooling cost is reduced.

[0045] The embodiment also provides a vehicle-mounted lamp, which comprises the light source assembly provided in the above embodiment, the power assembly 204 and the control assembly 100 are independent of each other, and installation is more flexible and convenient. The power assembly 204 and the control assembly 100 can be cooled separately, the cooling effect is good, and therefore the service life of the entire vehicle-mounted lamp is improved.

[0046] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0047] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A light source assembly for use in automotive lighting, characterized in that, include: Circuit board (202); An output light source (203) is disposed on the circuit board (202); The power component (204) and the output light source (203) are disposed on the same circuit board (202). The power component (204) is connected to the control component (100) via a connecting cable (300) to drive the output light source (203) to turn on and off.

2. The light source assembly according to claim 1, characterized in that, Also includes: A heat dissipation component is connected to the circuit board (202) to dissipate heat from the circuit board (202).

3. The light source assembly according to claim 2, characterized in that, The heat dissipation assembly includes a plurality of heat dissipation fins (2011), which are spaced apart.

4. The light source assembly according to any one of claims 2-3, characterized in that, Also includes: Mounting bracket (201), the circuit board (202) and the heat dissipation component are connected, the mounting bracket (201), the circuit board (202) and the mounting bracket (201) are detachably connected, and the connection between the circuit board (202) and the mounting bracket (201) is coated with heat dissipation adhesive.

5. The light source assembly according to claim 1, characterized in that, The power component (204) includes a first signal processing module and a driving module. The input end of the driving module is communicatively connected to the control component (100) via the first signal processing module, and the output end of the driving module is connected to the output light source (203).

6. The light source assembly according to claim 5, characterized in that, The first signal processing module and the driving module are located on both sides of the output light source (203) on the circuit board (202).

7. The light source assembly according to claim 6, characterized in that, The drive module includes a Boost circuit and / or a Buck circuit.

8. The light source assembly according to claim 1, characterized in that, The control component (100) includes a control circuit board, a central control module, a power drive module, and a second signal processing module. The central control module, the power drive module, and the signal processing module are all mounted on the control circuit board. The power drive module is connected to the central control module and the power component (204) respectively. The central control module is connected to the external control unit and the power component (204) via the second signal processing module.

9. The light source assembly according to claim 8, characterized in that, The control component (100) further includes a filtering module for adjusting the current of the power drive module.

10. A vehicle-mounted lighting fixture, characterized in that, Includes the light source assembly as described in any one of claims 1 to 9.

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