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 the priority of a Chinese patent application with the patent application number 202210777701.0, the filing date of July 4, 2022, and the invention title of "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] Current mood lamps, when assembled, attach the light - guiding block 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, it is necessary to separately install the corresponding heating rivet tool and also arrange the heating rivet equipment. 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 existing mood lamp must attach the light - guiding block to the circuit board in the form of a hot rivet when assembled.

Means for Solving the Problems

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

[0007] According to the present invention, there is provided a mood lamp including 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 engaging groove is formed, and through the engaging groove, it is engaged with the auxiliary circuit board, and includes at least one light guide block having at least one light incident surface installed opposite to the light source structure.

Advantages of the Invention

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

[0009] According to the mood lamp of the present invention, at least one engaging groove matching the auxiliary circuit board is formed on the light guide block, so that the light guide block can be directly engaged with the auxiliary circuit board. Also, by making the light incident surface of the light guide block correspond to the light source structure on the auxiliary circuit board, 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, and there is no need to use other tools for clamping and positioning. It is also not necessary 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.

[0010] To clearly explain the technical solutions of the embodiments of the present invention, the drawings necessary for the following description of the embodiments are briefly described. However, the drawings described below are only a part of the embodiments of the present application, and it goes without saying that those skilled in the art can obtain other drawings from these drawings without the need for creative actions.

Brief Description of the Drawings

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Embodiments for Carrying Out the Invention

[0012] Hereinafter, with reference to the drawings related to the embodiments of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described. It goes without saying that the embodiments described here are only a part, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained without the need for creative acts by those skilled in the art are included in the protection scope of the present invention.

[0013] As shown in FIGS. 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 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. Here, in order to briefly explain the positional relationship between each structure, it is described with reference to the directions shown in FIGS. 1 and 7. The height direction described 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 engaging groove 4 adapted to the auxiliary circuit board 2 is formed in the light guide block 3, so that the light guide block 3 can be directly engaged with the auxiliary circuit board 2. By making the light incident surface 31 of the light guide block 3 correspond to the light source structure 23 on the auxiliary circuit board 2, the light rays emitted from the light source structure 23 are guided to be emitted along a specific path by using the light guide block 3. The structure is simple, and there is no need to use other tools for clamping and positioning. There is no need to process rivet posts on the light guide block 3 or drill holes in the auxiliary circuit board 2 for hot riveting. Therefore, the assembly efficiency is high and the cost is low.

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

[0016] As shown in FIGS. 4, 5 and 9, in an embodiment of the present invention, at least one engaging claw 41 and at least one first protrusion 42 are provided on the light guide block 3. The first protrusion 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 protrusion 42 to form the engaging groove 4. By providing the first protrusion 42, there is a space for mounting the light source structure 23 between the light incident surface 31 and the auxiliary circuit board 2. By the first protrusion 42 and the engaging claw 41 cooperating to form the engaging groove 4, it is ensured that the light guide block 3 is firmly engaged with the auxiliary circuit board 2, and relative movement in the width direction of the engaging groove 4 between the light guide block 3 and the auxiliary circuit board 2, that is, in the width direction X between the auxiliary circuit board 2 and the light guide block 3, does not occur.

[0017] Specifically, the engaging claw 41 and the first protruding portion 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 protruding portion 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. 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 protruding portions 42. 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 a first groove 24 and a 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 in 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 a third groove 26 and a 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 that the light guide block 3 cannot be engaged with the auxiliary circuit board 2, and the mounting error of the light guide block 3 can be avoided.

[0023] 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 FIGS. 7, 9, and 10, in other embodiments, the lateral stopper groove 51 is disposed close to one engaging claw 41, and the light guide block 3 has an asymmetric structure. Both the third groove 26 and the fourth groove 27 are stepped grooves, but 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, so the auxiliary circuit board 2 has an asymmetric structure.

[0025] As shown in FIGS. 1 and 7, in an embodiment of the present invention, a longitudinal stopper structure 6 is disposed between the light guide block 3 and the auxiliary circuit board 2, and the longitudinal stopper structure 6 restricts the auxiliary circuit board 2 from disengaging from the engaging groove 4. By installing the longitudinal stopper structure 6, after the light guide block 3 is engaged with the auxiliary circuit board 2 downward, relative movement in the height direction Z between the light guide block 3 and the auxiliary circuit board 2 does not occur, thereby preventing the auxiliary circuit board 2 from disengaging from the engaging groove 4.

[0026] As shown in FIGS. 1, 5, 6, 7, 9, and 10, the longitudinal stopper structure 6 includes a longitudinal stopper block 62 and a longitudinal stopper groove 61. The engaging claw 41 has an inner surface facing the auxiliary circuit board 2. The longitudinal stopper block 62 is disposed on the inner surface of the engaging claw 41, and the longitudinal stopper groove 61 is disposed on the auxiliary circuit board 2 and adapted to the longitudinal 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 longitudinal stopper block 62 restricts the upward movement of the light guide block 3 relative to the auxiliary circuit board 2. Specifically, various groove structures on the auxiliary circuit board 2 are all formed by cutting from the edge portions on the auxiliary circuit board 2, and there is no need to open holes or form grooves at the central portion, making processing and manufacturing easy.

[0027] As shown in FIGS. 3, 5, 7, and 9, a guiding inclined surface 621 is formed on the vertical stopper block 62. The guiding inclined surface 621 is inclined and installed outward of the engaging groove 4 along the mounting direction of the light guiding block 3 (i.e., downward along the direction Z). When the light guiding block 3 moves downward and engages with the auxiliary circuit board 2, guided by the guiding inclined surface 621, the auxiliary circuit board 2 penetrates through the vertical stopper block 62 and engages with the engaging groove 4, and the vertical stopper block 62 is engaged with the vertical stopper groove 61 on the auxiliary circuit board 2.

[0028] As shown in FIG. 3, in this embodiment, a stopper inclined surface 622 is further formed on the vertical stopper block 62. The stopper inclined surface 622 is inclined and installed toward the inside of the vertical stopper groove 61 along the engaging direction of the vertical stopper block 62. The vertical stopper block 62 is engaged into the vertical stopper groove 61 along the thickness direction of the auxiliary circuit board 2. By providing the stopper inclined surface 622, even when there is a certain height difference between the vertical stopper block 62 and the vertical stopper block 62, an interference fit between the vertical stopper block 62 and the vertical stopper groove 61 is ensured, and upward movement of the light guiding block 3 is restricted.

[0029] As shown in FIGS. 3 and 7, in an embodiment of the present invention, a support structure 7 is installed on the light guiding block 3. The support structure 7 abuts against the main circuit board 1 along the mounting direction of the light guiding block 3. By supporting the light guiding block 3 with the main circuit board 1, the mounting stability of the light guiding block 3 is improved, and flipping of the light guiding block 3 is avoided.

[0030] As shown in FIGS. 5 and 9, the support structure 7 includes a plurality of second protruding portions 71. The plurality of second protruding portions 71 are symmetrically installed with respect to the center of gravity of the light guiding block 3. Specifically, the support structure 7 includes two second protruding portions 71. The second protruding portion 71 has a generally cylindrical structure. The second protruding portion 71 is integrally formed on the bottom surface of the light guiding 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 FIGS. 1 and 7, in the embodiment of the present invention, the auxiliary circuit board 2 has a first end and a second end facing each other. The first end of the auxiliary circuit board 2 is connected to the main circuit board 1 and installed perpendicular thereto. The light guide block 3 is engaged with the auxiliary circuit board 2 from the second end of the auxiliary circuit board 2 through the engagement groove 4. The auxiliary circuit board 2 can be more stably attached to the main circuit board 1, and the auxiliary circuit board 2 does not interfere with other electronic elements on the main circuit board 1.

[0032] As shown in FIG. 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 conducted by the connector 8. The plurality of auxiliary circuit boards 2 are respectively attached to the corresponding plurality of main circuit boards 1, and the plurality of light guide blocks 3 are respectively attached to the corresponding plurality of auxiliary circuit boards 2. By connecting the plurality of main circuit boards 1 with the connector 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 FIGS. 7 and 10, in other embodiments, a plurality of auxiliary circuit boards 2 are installed on the same main circuit board 1. The plurality of light guide blocks 3 are respectively attached to the corresponding plurality of auxiliary circuit boards 2.

[0034] The above are only some embodiments of the present invention. Those skilled in the art can make various improvements or modifications to the embodiments of the present invention based on the content disclosed in the application documents within the spirit and scope of the present invention.

Explanation of Reference Numerals

[0035] 1 Main circuit board 11 Mounting groove 2 Auxiliary circuit board 21 Mounting block 22 Welding leg 23 Light source structure 24 First groove 25 Second groove 26 Third groove 27 Fourth groove 3 Light guide block 31 Light incident surface 4 Engagement groove 41 Engagement claw 42 First protrusion 5 Lateral stopper structure 51 Lateral stopper groove 52 Lateral stopper block 53 Connection 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 protrusion 8 Connector

Claims

1. A mood lamp, comprising: At least one main circuit board; At least one auxiliary circuit board 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, engaged with the auxiliary circuit board through the engagement groove, and having at least one light incident surface disposed opposite to the light source structure; Including: A mood lamp.

2. The light guide block is provided with at least one engagement claw and at least one first protrusion; The first protrusion and the light incident surface are located on the same side of the light guide block; The engagement claw and the first protrusion together form the engagement groove; The mood lamp according to Claim 1.

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

4. The lateral stopper structure includes a lateral stopper block provided on the auxiliary circuit board and adapted to a lateral stopper groove; The light guide block includes a plurality of the engagement claws, a lateral stopper groove is formed between two adjacent engagement claws, or two adjacent engagement claws are connected through a connection plate provided with the lateral stopper groove; The mood lamp according to Claim 3.

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

6. A longitudinal stopper structure for restricting detachment of the auxiliary circuit board from the engagement groove is provided between the light guide block and the auxiliary circuit board; The mood lamp according to Claim 2.

7. The longitudinal stopper structure includes a longitudinal stopper block and a longitudinal stopper groove; The engagement claw has an inner surface facing the auxiliary circuit board; The longitudinal stopper block is provided on the inner surface of the engagement claw, and the longitudinal stopper groove is provided on the auxiliary circuit board and adapted to the longitudinal stopper block; The mood lamp according to Claim 6.

8. The vertical stopper block is provided with a guide inclined surface formed to incline outward of the engaging groove along the mounting direction of the light guide block, and a stopper inclined surface formed to incline inward of the vertical stopper groove along the engaging 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 abuts against 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 symmetrically installed with respect to the center of gravity of the light guide block. The mood lamp according to claim 9.

11. The auxiliary circuit board has a first end portion and a second end portion facing each other. The first end portion of the auxiliary circuit board is vertically connected to the main circuit board. The light guide block is engaged with the auxiliary circuit board at the second end portion of the auxiliary circuit board through the engaging groove. The mood lamp according to claim 1.

12. The mood lamp includes a plurality of the main circuit boards connected and electrically conducted by a connector, a plurality of auxiliary circuit boards respectively attached to the plurality of the main circuit boards correspondingly, and a plurality of light guide blocks respectively attached to the plurality of the auxiliary circuit boards correspondingly. The mood lamp according to claim 1.

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