Mood lamp

Abstract

The present invention discloses a mood lamp, which includes at least one main circuit board (1), at least one auxiliary circuit board (2) attached to the main circuit board (1) and electrically connected to the main circuit board (1), and the auxiliary circuit board (2) is provided with at least one light source structure (23), at least one engaging groove (4) is formed, and through the engaging groove (4), it is engaged with the auxiliary circuit board (2), and includes at least one light guide block (3) having at least one light incident surface (31) installed opposite to the light source structure (23). According to the mood lamp of the present invention, the light guide block can be directly engaged with the auxiliary circuit board, and the light rays emitted from the light source structure are guided to be emitted along a specific path by using the light guide block. The structure is simple, there is no need to use other tools for clamping and positioning, and there is no need to process rivet posts on the light guide block or drill holes in the auxiliary circuit board for hot riveting. Therefore, the assembly efficiency is high and the cost is low.

Description

Technical Field

[0001] (Cross - reference to Related Applications) This application claims priority to a Chinese patent application with patent application number 202210777701.0, filing date of July 4, 2022, and invention title "Mood Lamp".

[0002] The present invention relates to the technical field of light - emitting devices, and particularly to mood lamps.

Background Art

[0003] A mood lamp is a light - emitting device that combines a light source with a circuit board to achieve control of different brightness, gradation, and color change. Mood lamps can be installed in various places such as vehicles and buildings, and are widely used. A light - guiding block guides the light rays emitted from the light source on the circuit board to be emitted in a specific direction.

[0004] When assembling current mood lamps, the light - guiding block is attached to the circuit board in the form of a hot rivet. That is, the light - guiding block is provided with rivet posts, mounting holes are formed in the circuit board, and one end of the rivet post is heated through the mounting hole to form a rivet head to fix the light - guiding block to the circuit board. Therefore, a corresponding heating rivet tool needs to be installed separately, and heating rivet equipment also needs to be arranged. As a result, the cost is high, the process is complicated, and the assembly efficiency is low.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The purpose of the present invention is to provide a mood lamp that can solve the problems of high cost, complicated process, and low assembly efficiency because the light - guiding block must be attached to the circuit board in the form of a hot rivet when assembling existing mood lamps.

Means for Solving the Problems

[0006] The above objectives of the present invention can be achieved by the following technical solution.

[0007] The present invention provides a mood lamp comprising at least one main circuit board, at least one auxiliary circuit board attached to the main circuit board and electrically connected to the main circuit board, and provided with at least one light source structure, and at least one light guide block having at least one engagement groove formed therein, which engages with the auxiliary circuit board via the engagement groove, and which is installed facing the light source structure and has at least one light incident surface. [Effects of the Invention]

[0008] The present invention has the following features and advantages.

[0009] According to the mood lamp of the present invention, at least one engagement groove is formed in the light guide block to match the auxiliary circuit board, allowing the light guide block to be directly engaged with the auxiliary circuit board. Furthermore, by aligning the light incident surface of the light guide block with the light source structure on the auxiliary circuit board, the light rays emitted from the light source structure are guided using the light guide block so that they are emitted along a specific path. This results in a simple structure, no need to use other tools for clamping or positioning, no need to machine rivet posts into the light guide block, and no need to drill holes in the auxiliary circuit board for hot riveting, thus resulting in high assembly efficiency and low cost.

[0010] In order to clearly explain the technical concept of the embodiments of the present invention, the drawings necessary for describing the embodiments below will be briefly described. However, the drawings described below are only a part of the embodiments of the present invention, and it goes without saying that those skilled in the art can obtain other drawings from these drawings without requiring any creative work. [Brief explanation of the drawing]

[0011] [Figure 1] Perspective view of the mood lamp in this embodiment [Figure 2] Perspective view of the mood lamp in this embodiment from a different viewing angle. [Figure 3] Diagram showing the side structure of the mood lamp in this embodiment. [Figure 4] Diagram showing the structure of the light guide block in this embodiment. [Figure 5] This figure shows the lower surface of the light guide block in this embodiment. [Figure 6] This figure shows the structure of the main circuit board and auxiliary circuit board in this embodiment. [Figure 7] Perspective view of a mood lamp in another embodiment [Figure 8] Perspective view of a mood lamp from a different viewing angle in another embodiment. [Figure 9] A diagram showing the structure of the light guide block in another embodiment. [Figure 10] Figure showing the structure of the main circuit board and auxiliary circuit board in another embodiment. [Modes for carrying out the invention]

[0012] The technical concepts of embodiments of the present invention will be clearly and completely described below with reference to the drawings relating to embodiments of the present invention, although it goes without saying that the embodiments described herein are only a part of, and not all, embodiments of the present invention. All other embodiments that a person skilled in the art could obtain based on embodiments of the present invention without requiring any creative act are included within the scope of protection of the present invention.

[0013] As shown in Figures 1 and 7, the present invention provides a mood lamp which includes at least one main circuit board 1, at least one auxiliary circuit board 2 attached to the main circuit board 1 and electrically connected to the main circuit board 1, and provided with at least one light source structure 23, and at least one light guide block 3 having at least one engagement groove 4 formed therein, which engages with the auxiliary circuit board 2 via the engagement groove 4, and is installed facing the light source structure 23 and has at least one light incident surface 31. Herein, in order to briefly explain the positional relationship between each structure, the explanation will be given with reference to the directions shown in Figures 1 and 7, where the height direction in the present invention is the Z direction, the longitudinal direction is the Y direction, and the width direction is the X direction.

[0014] According to the mood lamp of the present invention, at least one engagement groove 4 is formed in the light guide block 3 so that it can be aligned with the auxiliary circuit board 2, allowing the light guide block 3 to be directly engaged with the auxiliary circuit board 2. Furthermore, by aligning the light incident surface 31 of the light guide block 3 with the light source structure 23 on the auxiliary circuit board 2, the light rays emitted from the light source structure 23 are guided using the light guide block 3 so that they are emitted along a specific path. The structure is simple, there is no need to use other tools for clamping or positioning, and there is no need to process rivet posts in the light guide block 3 or drill holes in the auxiliary circuit board 2 for hot riveting, resulting in high assembly efficiency and low cost.

[0015] Specifically, the width of the engagement groove 4 is slightly smaller than the thickness of the auxiliary circuit board 2. The light source structure 23 includes multiple LED particles. The light guide block 3 receives light rays emitted from the multiple LED particles through its light incident surface 31, and these light rays are diffusely reflected by the light guide block 3 and then transmitted to a mood lamp glass or other light-transmitting component along a specific path. As shown in Figures 2 and 8, a mounting groove 11 is formed in the main circuit board 1, and a mounting block 21 is provided in the auxiliary circuit board 2, with the mounting block 21 being inserted into the mounting groove 11, and the auxiliary circuit board 2 is welded and electrically connected to the main circuit board 1 by multiple welding legs 22. Both the main circuit board 1 and the auxiliary circuit board 2 are PCBA boards.

[0016] As shown in Figures 4, 5, and 9, in an embodiment of the present invention, the light guide block 3 is provided with at least one engaging claw 41 and at least one first projection 42, the first projection 42 and the light incident surface 31 are located on the same side of the light guide block 3, and the engaging claw 41 cooperates with the first projection 42 to form an engagement groove 4. By providing the first projection 42, there is space between the light incident surface 31 and the auxiliary circuit board 2 for mounting the light source structure 23, and the cooperation of the first projection 42 and the engaging claw 41 to form an engagement groove 4 ensures that the light guide block 3 is firmly engaged with the auxiliary circuit board 2, and no relative movement occurs in the width direction of the engagement groove 4 between the light guide block 3 and the auxiliary circuit board 2, i.e., in the width direction X between the auxiliary circuit board 2 and the light guide block 3.

[0017] Specifically, the engaging claw 41 and the first protrusion 42 are integrally formed with the light guide block 3, which is easy to process. The light guide block 3 has a light incident side surface facing the auxiliary circuit board 2 and a top surface that is separated from the main circuit board 1 and connected to the side surface. Both the light incident surface 31 and the first protrusion 42 are located on the light incident side surface of the light guide block 3. The fixed end of the engaging claw 41 is connected to the top surface of the light guide block 3. The engaging claw 41 is generally L-shaped.

[0018] As shown in FIGS. 1 and 7, in the embodiment of the present invention, a lateral stopper structure 5 is installed between the light guide block 3 and the auxiliary circuit board 2, and the lateral stopper structure 5 restricts the relative movement in the longitudinal direction of the engaging groove 4 between the light guide block 3 and the auxiliary circuit board 2. The longitudinal direction of the engaging groove 4 is the axial direction of the engaging groove 4 and is the longitudinal direction Y of the auxiliary circuit board 2 and the light guide block 3. By installing the lateral stopper structure 5, relative movement in the longitudinal direction of the engaging groove 4 between the light guide block 3 and the auxiliary circuit board 2 does not occur.

[0019] As shown in FIGS. 1, 5, 6, 7, 9, and 10, the lateral stopper structure 5 includes a lateral stopper block 52 and a lateral stopper groove 51. The lateral stopper block 52 is installed on the auxiliary circuit board 2 and is adapted to the lateral stopper groove 51. The light guide block 3 includes a plurality of engaging claws 41. A plurality of engaging grooves 4 are formed by the cooperation of the plurality of engaging claws 41 and the plurality of first protrusions 42, and the light guide block 3 is engaged with the auxiliary circuit board 2 by the plurality of engaging grooves 4, making the attachment of the light guide block 3 more stable. Specifically, two engaging claws 41 are arranged at intervals along the longitudinal direction of the auxiliary circuit board 2.

[0020] As shown in FIGS. 1, 5 and 6, in this embodiment, the lateral stopper groove 51 is formed by the cooperation between two adjacent engaging claws 41, with a simple structure and easy processing. Specifically, the top surface of the auxiliary circuit board 2 is cut to form the first groove 24 and the second groove 25, a lateral stopper block 52 is formed between the first groove 24 and the second groove 25, and the two engaging claws 41 are attached to the first groove 24 and the second groove 25.

[0021] As shown in FIGS. 7, 9 and 10, in another embodiment, two adjacent engaging claws 41 are connected via a connecting plate 53, and the lateral stopper groove 51 is formed on the connecting plate 53. By connecting two adjacent engaging claws 41 with the connecting plate 53, the structure of the two engaging claws 41 becomes more stable. Specifically, the connecting plate 53 is connected to the top surface of the light guide block 3. The top surface of the auxiliary circuit board 2 is cut to form the third groove 26 and the fourth groove 27, a lateral stopper block 52 is formed between the third groove 26 and the fourth groove 27, and the two engaging claws 41 are attached to the third groove 26 and the fourth groove 27.

[0022] As shown in FIGS. 1, 5, 6, 7, 9 and 10, the light guide block 3 has an asymmetric structure with respect to the center of the lateral stopper groove 51, and the auxiliary circuit board 2 has an asymmetric structure with respect to the center of the lateral stopper block 52. By installing both the light guide block 3 and the auxiliary circuit board 2 in an asymmetric structure, when the light guide block 3 is attached to the side where the light source structure 23 on the auxiliary circuit board 2 is not installed, the lateral stopper groove 51 on the light guide block 3 cannot be aligned with the lateral stopper block 52 on the auxiliary circuit board 2, so the light guide block 3 cannot be engaged with the auxiliary circuit board 2, and the installation error of the light guide block 3 can be avoided.

[0023] [[ID==12]]As shown in FIGS. 1, 5 and 6, in this embodiment, the first groove 24 is a stepped groove, the second groove 25 is a three-sided open groove, and the auxiliary circuit board 2 has an asymmetric structure. The two engaging claws 41 are installed asymmetrically with respect to the center of the light guide block 3, and the light guide block 3 has an asymmetric structure.

[0024] As shown in Figures 7, 9, and 10, in other embodiments, the lateral stopper groove 51 is positioned close to one of the engaging claws 41, and the light guide block 3 has an asymmetric structure. Although both the third groove 26 and the fourth groove 27 are stepped grooves, the size of the third groove 26 extending along the longitudinal direction Y of the auxiliary circuit board 2 is larger than the size of the fourth groove 27 extending along the longitudinal direction Y of the auxiliary circuit board 2, thus the auxiliary circuit board 2 has an asymmetric structure.

[0025] As shown in Figures 1 and 7, in an embodiment of the present invention, a vertical stopper structure 6 is installed between the light guide block 3 and the auxiliary circuit board 2, and the vertical stopper structure 6 restricts the auxiliary circuit board 2 from disengaging from the engagement groove 4. By installing the vertical stopper structure 6, after the light guide block 3 engages with the auxiliary circuit board 2 downward, no relative movement occurs between the light guide block 3 and the auxiliary circuit board 2 in the height direction Z, thereby preventing the auxiliary circuit board 2 from disengaging from the engagement groove 4.

[0026] As shown in Figures 1, 5, 6, 7, 9, and 10, the vertical stopper structure 6 includes a vertical stopper block 62 and a vertical stopper groove 61. The engaging claw 41 has an inner surface facing the auxiliary circuit board 2, the vertical stopper block 62 is installed on the inner surface of the engaging claw 41, and the vertical stopper groove 61 is installed on the auxiliary circuit board 2 and aligned with the vertical stopper block 62. After assembling the light guide block 3 and the auxiliary circuit board 2, the bottom surface of the engaging groove 4 restricts the downward movement of the light guide block 3 relative to the auxiliary circuit board 2, and the vertical stopper block 62 restricts the upward movement of the light guide block 3 relative to the auxiliary circuit board 2. Specifically, all of the various groove structures on the auxiliary circuit board 2 are formed by cutting from the edge portion on the auxiliary circuit board 2, eliminating the need to open holes or form grooves in the central portion, making processing and manufacturing easy.

[0027] As shown in Figures 3, 5, 7, and 9, a guide inclined surface 621 is formed on the vertical stopper block 62, and the guide inclined surface 621 is installed at an angle toward the outside of the engagement groove 4 along the mounting direction of the light guide block 3 (i.e., downward along direction Z). When the light guide block 3 moves downward and engages with the auxiliary circuit board 2, the auxiliary circuit board 2 is guided by the guide inclined surface 621, penetrates the vertical stopper block 62 and engages with the engagement groove 4, and engages the vertical stopper block 62 with the vertical stopper groove 61 on the auxiliary circuit board 2.

[0028] As shown in Figure 3, in this embodiment, a stopper inclined surface 622 is further formed on the vertical stopper block 62, and the stopper inclined surface 622 is installed at an angle toward the inside of the vertical stopper groove 61 along the engagement direction of the vertical stopper block 62. The vertical stopper block 62 is engaged in the vertical stopper groove 61 along the thickness direction of the auxiliary circuit board 2, and by installing the stopper inclined surface 622, interference fit between the vertical stopper block 62 and the vertical stopper groove 61 is ensured even when there is a certain height difference between the vertical stopper block 62 and the vertical stopper block 62, thereby restricting the upward movement of the light guide block 3.

[0029] As shown in Figures 3 and 7, in this embodiment of the present invention, a support structure 7 is installed on the light guide block 3, and the support structure 7 abuts against the main circuit board 1 along the mounting direction of the light guide block 3. By supporting the light guide block 3 with the main circuit board 1, the mounting stability of the light guide block 3 is improved and the inversion of the light guide block 3 is prevented.

[0030] As shown in Figures 5 and 9, the support structure 7 includes a plurality of second protrusions 71, which are arranged symmetrically with respect to the center of gravity of the light guide block 3. Specifically, the support structure 7 includes two second protrusions 71. The second protrusions 71 have a roughly cylindrical structure. The second protrusions 71 are integrally molded to the bottom surface of the light guide block 3 facing the main circuit board 1.

[0031] The arrangement angle between the auxiliary circuit board 2 and the main circuit board 1 is not specifically limited. As shown in Figures 1 and 7, in the embodiment of the present invention, the auxiliary circuit board 2 has opposing first and second ends. The first end of the auxiliary circuit board 2 is connected to the main circuit board 1 and is installed perpendicularly to it. The light guide block 3 is engaged with the auxiliary circuit board 2 from the second end of the auxiliary circuit board 2 via the engagement groove 4. This allows the auxiliary circuit board 2 to be attached to the main circuit board 1 more stably and prevents interference between the auxiliary circuit board 2 and other electronic elements on the main circuit board 1.

[0032] As shown in Figure 1, in this embodiment, the mood lamp includes a plurality of main circuit boards 1, a plurality of auxiliary circuit boards 2, and a plurality of light guide blocks 3. The plurality of main circuit boards 1 are connected and electrically connected by connectors 8, the plurality of auxiliary circuit boards 2 are each attached to the plurality of main circuit boards 1, and the plurality of light guide blocks 3 are each attached to the plurality of auxiliary circuit boards 2. By connecting the plurality of main circuit boards 1 with connectors 8 and installing the plurality of light guide blocks 3, it is easy to assemble the mood lamp into the required shape.

[0033] As shown in Figures 7 and 10, in other embodiments, multiple auxiliary circuit boards 2 are installed on the same main circuit board 1. Multiple light guide blocks 3 are each attached to multiple auxiliary circuit boards 2 in corresponding locations.

[0034] The above are merely some embodiments of the present invention, and those skilled in the art can make various improvements or modifications to the embodiments of the present invention within the spirit and scope of the invention based on the information disclosed in the application documents. [Explanation of Symbols]

[0035] 1 Main circuit board 11 Mounting groove 2. Auxiliary circuit board 21 Mounting block 22 Welding Legs 23 Light source structure 24 The first trench 25 The second groove 26 The third groove 27 The Fourth Groove 3. Light guide block 31 Light incidence surface 4. Engagement groove 41 Engaging claws 42 First projection 5. Lateral stopper structure 51 Lateral stopper groove 52 Lateral Stopper Block 53 Connecting Plate 6. Vertical stopper structure 61 Vertical stopper groove 62 Vertical stopper block 621 Guide inclined surface 622 Stopper Inclined Surface 7 Support structure 71 Second projection 8 connectors

Claims

1. It's a mood lamp, At least one main circuit board, At least one auxiliary circuit board, which is attached to the main circuit board, electrically connected to the main circuit board, and provided with at least one light source structure, At least one light guide block having at least one engagement groove formed therein, which engages with the auxiliary circuit board via the engagement groove, and which has at least one light incident surface positioned opposite the light source structure, Includes, The auxiliary circuit board has a first end and a second end facing each other. The first end of the auxiliary circuit board is connected perpendicularly to the main circuit board. The light guide block is engaged with the auxiliary circuit board at the second end of the auxiliary circuit board via the engagement groove. Mood lamp.

2. The light guide block is provided with at least one engaging claw and at least one first projection, The first protrusion and the light incident surface are located on the same side of the light guide block. The engaging claw and the first protrusion both form the engaging groove. The mood lamp according to claim 1.

3. A lateral stopper structure is installed between the light guide block and the auxiliary circuit board to restrict the relative movement of the engagement groove between the light guide block and the auxiliary circuit board in the longitudinal direction. The mood lamp according to claim 2.

4. The lateral stopper structure includes a lateral stopper block provided on the auxiliary circuit board and aligned with the lateral stopper groove, and the lateral stopper groove. The light guide block includes a plurality of engagement claws, with a lateral stopper groove formed between two adjacent engagement claws, or two adjacent engagement claws are connected via a connecting plate in which the lateral stopper groove is formed. The mood lamp according to claim 3.

5. The light guide block has an asymmetrical structure with respect to the center of the lateral stopper groove, The auxiliary circuit board has an asymmetrical structure with respect to the center of the lateral stopper block. The mood lamp according to claim 4.

6. A vertical stopper structure is provided between the light guide block and the auxiliary circuit board to restrict the auxiliary circuit board from disengaging from the engagement groove. The mood lamp according to claim 2.

7. The aforementioned vertical stopper structure includes a vertical stopper block and a vertical stopper groove, The engaging claw has an inner surface facing the auxiliary circuit board, The vertical stopper block is provided on the inner surface of the engaging claw, and the vertical stopper groove is provided on the auxiliary circuit board and aligned with the vertical stopper block. The mood lamp according to claim 6.

8. The vertical stopper block is provided with a guide inclined surface formed to be inclined outward from the engagement groove along the mounting direction of the light guide block, and a stopper inclined surface formed to be inward from the vertical stopper groove along the engagement direction of the vertical stopper block. The mood lamp according to claim 7.

9. The light guide block is provided with a support structure that contacts the main circuit board along the mounting direction of the light guide block. The mood lamp according to claim 1.

10. The support structure includes a plurality of second protrusions that are symmetrically positioned with respect to the center of gravity of the light guide block. The mood lamp according to claim 9.

11. The aforementioned mood lamp is Multiple main circuit boards connected and electrically connected by connectors, Multiple auxiliary circuit boards are attached to multiple main circuit boards, each corresponding to the other, Multiple light guide blocks are attached to multiple auxiliary circuit boards, each corresponding to a plurality of light guide blocks, including, The mood lamp according to claim 1.

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