A circuit board assembly and a lighting device

Abstract

This utility model discloses a circuit board assembly and a lighting device, relating to the field of lighting device technology. The circuit board assembly includes a bracket, a first sub-board, and a second sub-board. The bracket is installed in the mounting cavity of the lighting device by a snap-fit ​​mechanism, and the shape of the outer side wall of the bracket matches the shape of the inner side wall of the mounting cavity. The bracket has a first mounting position and a second mounting position. The first sub-board is fixedly installed in the first mounting position by a first connector. The second sub-board is fixedly installed in the second mounting position by a second connector. The second sub-board has conductive wires that are electrically connected to the lighting components of the lighting device. The circuit board assembly provided by this utility model, by fixing both the first and second sub-boards on the bracket and then installing the bracket in the mounting cavity of the lighting device, thereby stabilizing the relative positions of each sub-board and the main control board, improving the fixing reliability of each sub-board, and improving the operational reliability of the lighting device.

Description

Technical Field

[0001] This utility model relates to the field of lighting equipment technology, and in particular to a circuit board assembly and a lighting device. Background Technology

[0002] In the current market environment, the internal PCBA (Printed Circuit Board Assembly) design of various flashlights and other lighting devices generally follows a certain structural layout. Specifically, these PCBAs typically consist of a main printed circuit board (i.e., the main PCBA board) forming the core framework, upon which multiple secondary printed circuit boards (sub-boards) are then assembled through soldering or other connection methods to achieve the integration and expansion of more functions. However, this design pattern has revealed some problems that cannot be ignored in practical applications.

[0003] The primary problem is the excessive number of sub-boards mounted on the main PCBA board, which directly leads to a significant reduction in the space utilization of the main PCBA board. Since the main PCBA board itself needs to house numerous critical electronic components, such as driver chips, capacitors, and resistors, the increased number of sub-boards further compresses the layout space for these components. In some extreme cases, the main PCBA board may be unable to mount any additional sub-boards due to the excessive density of electronic components, or may only be able to mount one sub-board. This space constraint undoubtedly severely restricts the design flexibility and functional expandability of the PCBA circuit board, thereby directly affecting the overall performance of lighting products. For example, brightness adjustment range, battery life, and heat dissipation efficiency may all be negatively impacted to varying degrees.

[0004] Furthermore, a technical challenge regarding panel stability exists in the PCBA panelization process of the lighting industry. Typically, only one side of a PCBA panel is securely fixed to the lamp holder or other supporting structure, while the other side is suspended. This single-sided fixing method makes the panel highly susceptible to deformation or damage when subjected to external vibrations, impacts, or temperature changes, thus affecting the reliability and lifespan of the lighting equipment. To address this issue, a common practice is to drill holes in the lamp holder to secure the other side of the panel with additional fasteners. However, while this approach improves panel stability to some extent, it introduces new challenges—drilling holes in the lamp holder causes some light to be scattered or absorbed as it passes through the holes, increasing light loss and reducing lighting efficiency. Utility Model Content

[0005] In view of this, the purpose of this utility model is to overcome the shortcomings in related technologies. This utility model provides a circuit board assembly and a lighting device.

[0006] This utility model provides the following technical solution:

[0007] A circuit board assembly includes a bracket and a sub-board.

[0008] The bracket is installed in the mounting cavity of the lighting equipment by snap-fit, and the shape of the outer side wall of the bracket matches the shape of the inner side wall of the mounting cavity; the bracket is provided with multiple mounting positions; the sub-plate is set correspondingly to the mounting positions, and the sub-plate is installed on the mounting positions by connectors, and the sub-plate is electrically connected to the lighting components and the main circuit board of the lighting equipment respectively.

[0009] As a further improvement to the above technical solution, the mounting position includes at least a first mounting position and a second mounting position, and the sub-board includes at least a first sub-board and a second sub-board. The first sub-board is fixedly mounted on the first mounting position by a first connector; the second sub-board is fixedly mounted on the second mounting position by a second connector; the second sub-board is provided with conductive wires, and the conductive wires are electrically connected to the lighting components of the lighting equipment; the first sub-board is electrically connected to the second sub-board and the main circuit board respectively.

[0010] As a further improvement to the above technical solution, the first mounting position and the second mounting position are respectively disposed on opposite end faces of the bracket, and the first sub-plate and the second sub-plate are parallel to each other when mounted on the bracket.

[0011] As a further improvement to the above technical solution, the first connecting member is a first buckle corresponding to the first sub-plate, the buckle being disposed on the first mounting position for securing the first sub-plate to the first mounting position; the second connecting member is a second buckle corresponding to the second sub-plate, the second buckle being disposed on the second mounting position for securing the second sub-plate to the second mounting position.

[0012] As a further improvement to the above technical solution, the second mounting position is provided with a spacer boss, which is located between the second mounting position and the second sub-plate, so that there is a gap between the second sub-plate and the second mounting position.

[0013] As a further improvement to the above technical solution, at least two first positioning posts are provided on the spacer protrusion, and a first positioning hole corresponding to the first positioning post is provided on the second sub-plate, with the first positioning post passing through the first positioning hole.

[0014] As a further improvement to the above technical solution, the first sub-board is electrically connected to the second sub-board through a first conductive element; the first sub-board is electrically connected to the main circuit board through a second conductive element.

[0015] As a further improvement to the above technical solution, the first conductive element and the second conductive element are respectively located at opposite ends of the first sub-plate.

[0016] As a further improvement to the above technical solution, both the first conductive component and the second conductive component are composed of a pre-mounted base and a connecting pin. The connecting pin is disposed on the pre-mounted base, and the bracket is provided with a pre-mounted groove corresponding to the pre-mounted base. The pre-mounted base is installed in the pre-mounted groove.

[0017] As a further improvement to the above technical solution, the bracket is provided with at least two second positioning posts at the end near the main circuit board, and the main circuit board is provided with second positioning holes corresponding to the second positioning posts, with the second positioning posts passing through the second positioning holes.

[0018] The present invention also provides a lighting device, including a circuit board assembly as described in any one of the above-described embodiments.

[0019] Compared with related technologies, the beneficial effects of this utility model are:

[0020] The circuit board assembly provided by this utility model, during the installation and use of lighting equipment, firstly uses connectors to sequentially install multiple sub-boards with various electronic components on the corresponding mounting positions of the bracket. Through these steps, the multiple sub-boards and the bracket together form a fixed and integrated structure.

[0021] Subsequently, the bracket, whose outer shape precisely matches the shape of the inner wall of the lighting equipment mounting cavity, is securely installed in the corresponding mounting cavity of the lighting equipment using a snap-fit ​​method. This snap-fit ​​design not only facilitates installation but also effectively prevents the bracket from shaking or shifting within the mounting cavity, further improving the stability of the assembly structure. After the bracket is installed in place, a stable and reliable electrical connection between the sub-board and the main circuit board is ensured through welding or other reliable electrical connection methods.

[0022] Finally, the sub-board is electrically connected to the lighting components of the lighting equipment using conductive wires. This step provides power to the light source in the lighting equipment and is crucial for its proper functioning. The conductive wires should be made of materials with good conductivity, wear resistance, and high temperature resistance to ensure stable electrical performance during long-term use.

[0023] Throughout the assembly process, by pre-integrating and fixing each sub-board to the bracket, the assembly efficiency of the lighting equipment is greatly improved, and the entire assembly process becomes more orderly and controllable. Simultaneously, configuring the relative positions of multiple mounting positions on the bracket according to actual needs effectively improves the space utilization of the mounting cavity for each sub-board and other electronic components, thereby saving installation space. Furthermore, the snap-fit ​​design of the bracket relative to the mounting cavity further enhances its support reliability and stability between the sub-boards, ensuring that the lighting equipment can resist the influence of external factors during subsequent use, thus improving the reliability and shock resistance of the lighting equipment.

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 An exploded view of the structure of a lighting device according to one embodiment of the present invention is shown.

[0027] Figure 2 This is a schematic diagram of a circuit board assembly from one perspective in one embodiment of the present invention;

[0028] Figure 3 The diagram shows a schematic view of the support structure in one embodiment of the present invention.

[0029] Explanation of key component symbols:

[0030] 100-Bracket; 110-First mounting position; 111-First buckle; 120-Second mounting position; 121-Second buckle; 122-Spacer boss; 123-First positioning post; 130-Second positioning post; 140-Pre-installation slot; 210-Mounting cavity; 220-Lighting component; 230-Main circuit board; 231-Second positioning hole; 300-First sub-board; 400-Second sub-board; 410-First positioning hole; 420-Conductive wire; 510-First conductive component; 511-Pre-installation base; 512-Connecting pin header; 520-Second conductive component. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] like Figure 1 , Figure 2 As shown, an embodiment of the present invention provides a circuit board assembly, including a bracket 100, a first sub-board 300, and a second sub-board 400.

[0037] The bracket 100 is installed in the mounting cavity 210 of the lighting equipment by snap-fit. The shape of the outer side wall of the bracket 100 matches the shape of the inner side wall of the mounting cavity 210. The bracket 100 is provided with multiple mounting positions. The sub-plate is set corresponding to the mounting positions. The sub-plate is installed on the mounting positions by connectors. The sub-plate is electrically connected to the lighting component 220 and the main circuit board 230 of the lighting equipment, respectively.

[0038] In the installation and use of the lighting equipment, the circuit board assembly provided in this embodiment first uses connectors to install multiple sub-boards with various electronic components in sequence on the corresponding mounting positions of the bracket 100. Through these steps, the multiple sub-boards and the bracket 100 together form a fixed and integrated structure.

[0039] Subsequently, the bracket 100, whose outer shape precisely matches the shape of the inner wall of the lighting equipment mounting cavity 210, is securely installed in the corresponding mounting cavity 210 of the lighting equipment using a snap-fit ​​method. This snap-fit ​​design not only facilitates installation but also effectively prevents the bracket 100 from shaking or shifting within the mounting cavity 210, further improving the stability of the assembly structure. After the bracket 100 is installed in place, a stable and reliable electrical connection between the sub-board and the main circuit board 230 is ensured through welding or other reliable electrical connection methods.

[0040] Finally, the sub-board is electrically connected to the lighting component 220 of the lighting equipment using conductive wire 420. This step provides power to the light source in the lighting equipment and is a crucial step for the normal operation of the lighting equipment. The conductive wire 420 should be made of a material with good conductivity, wear resistance, and high temperature resistance to ensure stable electrical performance during long-term use.

[0041] Throughout the assembly process, by pre-integrating and fixing each sub-board to the bracket 100, the assembly efficiency of the lighting equipment is greatly improved, and the entire assembly process becomes more orderly and controllable. Simultaneously, configuring the relative positions of multiple mounting positions on the bracket 100 according to actual needs effectively improves the space utilization of the mounting cavity 210 for each sub-board and other electronic components, thereby saving installation space. Furthermore, the snap-fit ​​design of the bracket 100 relative to the mounting cavity 210 further enhances its support reliability and stability between the sub-boards, ensuring that the lighting equipment can resist the influence of external factors during subsequent use, thus improving the reliability and shock resistance of the lighting equipment.

[0042] In some specific embodiments, the mounting positions include at least a first mounting position 110 and a second mounting position 120, and the sub-plates include at least a first sub-plate 300 and a second sub-plate 400. The first sub-plate 300 is fixedly mounted on the first mounting position 110 via a first connector; the second sub-plate 400 is fixedly mounted on the second mounting position 120 via a second connector; the second sub-plate 400 is provided with a conductive wire 420, which is electrically connected to the lighting element 220 of the lighting device; the first sub-plate 300 is electrically connected to the second sub-plate 400 and the main circuit board 230 respectively. Specifically, in the design of lighting devices under the prior art, by reasonably setting one main circuit board 230 and two sub-plates for use, most functional usage requirements can be met. Therefore, in this embodiment, we only restrict and standardize the structure of the bracket 100 with two mounting positions to ensure that this structure can meet the normal usage requirements of the lighting device. Such a design is both simple and efficient, ensuring the functionality of the lighting device while reducing manufacturing costs and maintenance difficulty.

[0043] In some specific embodiments, the first mounting position 110 and the second mounting position 120 are respectively disposed on opposite end faces of the bracket 100. When the first sub-plate 300 and the second sub-plate 400 are mounted on the bracket 100, they are parallel to each other, which facilitates further reduction of their space occupation and improvement of component assembly integration when the first sub-plate 300 and the second sub-plate 400 are mounted in the mounting cavity 210.

[0044] In some specific embodiments, the first connecting member is a first buckle 111 corresponding to the first sub-plate 300, the buckle being disposed on the first mounting position 110 for securing the first sub-plate 300 to the first mounting position 110; the second connecting member is a second buckle 121 corresponding to the second sub-plate 400, the second buckle 121 being disposed on the second mounting position 120 for securing the second sub-plate 400 to the second mounting position 120; both the first buckle 111 and the second buckle 121 are made of elastic material, which facilitates the clamping of each sub-plate to the corresponding mounting position, and also facilitates the quick assembly and disassembly of the first sub-plate 300 and the second sub-plate 400 relative to the first mounting position 110 and the second mounting position 120, thereby improving the assembly production efficiency of this embodiment and reducing the difficulty of subsequent maintenance of the lighting equipment.

[0045] like Figure 3As shown, in some specific embodiments, the second mounting position 120 is provided with a spacer boss 122. The spacer boss 122 is located between the second mounting position 120 and the second sub-plate 400, so that there is a gap between the second sub-plate 400 and the second mounting position 120. This facilitates the heat dissipation effect of each sub-plate during the use of the lighting equipment, and also avoids short circuit problems caused by the two sub-plates being too close together, thereby improving the safety of use in this embodiment.

[0046] In some specific embodiments, the spacer boss 122 is provided with at least two first positioning posts 123, and the second sub-plate 400 is provided with a first positioning hole 410 corresponding to the first positioning post 123. The first positioning post 123 passes through the first positioning hole 410. The first positioning post 123 is used to restrict the installation position of the second sub-plate 400 on the second mounting position 120, thereby improving the installation accuracy and efficiency of the second sub-plate 400. Of course, in other embodiments of this utility model, corresponding positioning posts can also be provided on the mounting positions of the first sub-plate 300 or other sub-plates to further improve the installation efficiency of the sub-plates.

[0047] In some specific embodiments, the first sub-board 300 is electrically connected to the second sub-board 400 via a first conductive element 510; the first sub-board 300 is electrically connected to the main circuit board 230 via a second conductive element 520. By using conductive elements to connect the first sub-board 300, the second sub-board 400, and the main circuit board 230, the reliability of the connections between the various components is effectively ensured. This connection method not only simplifies the circuit layout and reduces assembly difficulty, but also improves the overall stability and durability of the lighting equipment. In practical applications, this connection method ensures that the lighting equipment can work stably in various environments, providing users with reliable and efficient lighting services.

[0048] In some specific embodiments, the first conductive element 510 and the second conductive element 520 are respectively located at opposite ends of the first sub-plate 300, in order to avoid short circuits between the first conductive element 510 and the second conductive element 520 due to being too close, and to ensure the safety of use in this embodiment.

[0049] In some specific embodiments, the first conductive element 510 and the second conductive element 520 are both composed of a pre-mount base 511 and a connecting pin 512. The connecting pin 512 is disposed on the pre-mount base 511. The bracket 100 is provided with a pre-mount groove 140 corresponding to the pre-mount base 511. The pre-mount base 511 is installed in the pre-mount groove 140. The position of the pre-mount base 511 is restricted by the pre-mount groove 140 to ensure that the connecting pin 512 will not move arbitrarily during the assembly stage of this embodiment, so as to ensure the rapid welding connection of the connecting pin 512 to the connection contacts on each motherboard and sub-board, thereby improving the assembly and processing efficiency of this embodiment.

[0050] In some specific embodiments, the bracket 100 is provided with at least two second positioning posts 130 at the end near the main circuit board 230, and the main circuit board 230 is provided with second positioning holes 231 corresponding to the second positioning posts 130. The second positioning posts 130 are inserted into the second positioning holes 231 to restrict the relative position of the main circuit board 230, the bracket 100 and each sub-board, thereby improving the overall installation efficiency.

[0051] The present invention also provides a lighting device, which can be divided into various models according to different usage scenarios, including the circuit board assembly in the above embodiments. The circuit board assembly is installed in the mounting cavity 210 of the lighting device, and the lighting device has all the beneficial effects of the circuit board assembly, which will not be described in detail here.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A circuit board assembly, characterized in that, include: The bracket (100) is installed in the mounting cavity (210) of the lighting equipment by snap-fit. The shape of the outer side wall of the bracket (100) matches the shape of the inner side wall of the mounting cavity (210). The bracket (100) is provided with multiple mounting positions. A sub-board is provided corresponding to the mounting position. The sub-board is installed on the mounting position through a connector. The sub-board is electrically connected to the lighting component (220) of the lighting equipment and the main circuit board (230) of the lighting equipment.

2. The circuit board assembly according to claim 1, characterized in that, The mounting position includes at least a first mounting position (110) and a second mounting position (120), and the sub-board includes at least a first sub-board (300) and a second sub-board (400). The first sub-board (300) is fixedly mounted on the first mounting position (110) by a first connector; the second sub-board (400) is fixedly mounted on the second mounting position (120) by a second connector; the second sub-board (400) is provided with a conductive wire (420), and the conductive wire (420) is electrically connected to the lighting component (220) of the lighting device; the first sub-board (300) is electrically connected to the second sub-board (400) and the main circuit board (230) respectively.

3. The circuit board assembly according to claim 2, characterized in that, The first mounting position (110) and the second mounting position (120) are respectively disposed on opposite end faces of the bracket (100), and the first sub-plate (300) and the second sub-plate (400) are parallel to each other when mounted on the bracket (100).

4. The circuit board assembly according to claim 3, characterized in that, The first connector is a first buckle (111) corresponding to the first sub-plate (300), the buckle is disposed on the first mounting position (110) and is used to snap and fix the first sub-plate (300) in the first mounting position (110); the second connector is a second buckle (121) corresponding to the second sub-plate (400), the second buckle (121) is disposed on the second mounting position (120) and is used to snap and fix the second sub-plate (400) in the second mounting position (120).

5. The circuit board assembly according to claim 4, characterized in that, The second mounting position (120) is provided with a spacer boss (122), which is located between the second mounting position (120) and the second sub-plate (400) to create a gap between the second sub-plate (400) and the second mounting position (120).

6. The circuit board assembly according to claim 5, characterized in that, The spacer boss (122) is provided with at least two first positioning posts (123), and the second sub-plate (400) is provided with a first positioning hole (410) corresponding to the first positioning post (123), and the first positioning post (123) passes through the first positioning hole (410).

7. The circuit board assembly according to claim 3, characterized in that, The first sub-board (300) is electrically connected to the second sub-board (400) through the first conductive element (510); the first sub-board (300) is electrically connected to the main circuit board (230) through the second conductive element (520).

8. The circuit board assembly according to claim 7, characterized in that, The first conductive element (510) and the second conductive element (520) are both composed of a pre-mounted base (511) and a connecting pin (512). The connecting pin (512) is disposed on the pre-mounted base (511). The bracket (100) is provided with a pre-mounted groove (140) corresponding to the pre-mounted base (511). The pre-mounted base (511) is installed in the pre-mounted groove (140).

9. The circuit board assembly according to any one of claims 1 to 8, characterized in that, The bracket (100) is provided with at least two second positioning posts (130) at the end near the main circuit board (230). The main circuit board (230) is provided with a second positioning hole (231) corresponding to the second positioning post (130), and the second positioning post (130) passes through the second positioning hole (231).

10. A lighting device, characterized in that, Includes the circuit board assembly as described in any one of claims 1 to 9.

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