A marker lamp circuit board mounting structure
By designing a snap-fit and anti-retraction structure on the circuit board of the sign light, the problem of unstable circuit board installation was solved, achieving an efficient and stable fixing method, which improved production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING ZHONGKE ZHICHUANG ELECTRICAL & EQUIP CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-09
AI Technical Summary
In existing all-metal casing fire emergency sign lights, the circuit board installation method has problems of low production efficiency and unstable quality. In particular, the adhesive method is greatly affected by environmental factors and has the risk of delamination and peeling.
The circuit board is fixed to the back plate using a snap-fit structure and an anti-retraction structure. The snap-fit structure includes a first snap and a second snap, and the anti-retraction structure includes an anti-retraction protrusion. These structures achieve a stable connection between the circuit board and the back plate.
It simplifies the production process, improves production efficiency and yield, avoids production bottlenecks caused by sealant curing time, and enhances the company's economic benefits.
Smart Images

Figure CN224343573U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lighting technology, and in particular to a circuit board mounting structure for a sign light. Background Technology
[0002] Existing all-metal housing fire emergency indicator lights typically use adhesives such as double-sided tape, hot melt adhesive, or silicone rubber to fix the circuit board to the light housing. This method of circuit board installation increases the amount of adhesive materials and assembly work, affecting processing time, resulting in low production efficiency and a significant impact on production capacity, making it unsuitable for large-scale mass production. Furthermore, adhesive fixing is highly susceptible to environmental factors, posing a risk of delamination or detachment, which affects product quality. Utility Model Content
[0003] This utility model proposes a circuit board mounting structure for a sign light and its mounting structure, which solves the above-mentioned problems in the prior art.
[0004] The technical solution of this utility model is implemented as follows:
[0005] A sign light circuit board mounting structure includes a circuit board and a back plate, wherein the circuit board is connected to the back plate through a snap-fit structure and an anti-retraction structure provided on the back plate.
[0006] Furthermore, the buckle structure includes a first buckle and a second buckle, with the first buckle and the second buckle being arranged opposite to each other.
[0007] Preferably, both the first and second buckles have L-shaped cross-sections.
[0008] Furthermore, the anti-retraction structure includes anti-retraction bumps that match the edge of the circuit board.
[0009] Preferably, there are two anti-retraction bumps, which are arranged symmetrically.
[0010] Preferably, the anti-retraction protrusion is a spherical notch protrusion or a screw.
[0011] Furthermore, the sign light circuit board mounting structure of this utility model also includes a panel, which is snapped together with a back plate, and the circuit board is disposed between the panel and the back plate.
[0012] Furthermore, the sign light circuit board mounting structure of this utility model also includes a diffuser plate, which is connected to the panel and disposed between the panel and the circuit board.
[0013] Furthermore, the circuit board is equipped with a light-emitting device and a power cord, and the back plate is provided with a power cord hole and a fastening ring. The fastening ring is set inside the power cord hole, and the power cord passes through the fastening ring to connect to the outside.
[0014] Furthermore, the back panel is provided with a wall-mounting hole, a connecting piece, and a baffle. One end of the connecting piece is connected to the edge of the wall-mounting hole, and the other end of the connecting piece is connected to the baffle.
[0015] The beneficial effects of this utility model are as follows:
[0016] The circuit board mounting structure for the sign light described in this utility model achieves fixation of the circuit board and the back plate through a snap-fit structure and an anti-retraction structure. The manufacturing process is simple and efficient, eliminating the need to wait for the sealant to cure and requiring no special skills from the operators. This greatly improves production efficiency and yield, bringing better economic benefits to enterprises. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the circuit board mounting structure for a sign light according to the present invention;
[0019] Figure 2 This is another structural schematic diagram of the circuit board mounting structure for a sign light according to this utility model;
[0020] Figure 3 This is another schematic diagram of the circuit board mounting structure for a sign light according to this utility model. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] like Figure 1-3 As shown, the present invention provides a circuit board mounting structure for a sign light, comprising a circuit board 3 and a back plate 4. The circuit board 3 is connected to the back plate 4 via a snap-fit structure and an anti-retraction structure provided on the back plate 4.
[0023] The sign light circuit board mounting structure of this utility model achieves fixation of the circuit board 3 and the back plate 4 through a snap-fit structure and an anti-retraction structure designed on the back plate 4. The manufacturing process is simple and efficient, eliminating the need to wait for the sealant to cure and requiring no special skills from the operators. This greatly improves production efficiency and yield, bringing better economic benefits to enterprises.
[0024] The latching structure includes a first latch 5 and a second latch 6, which are arranged opposite to each other. Specifically, the first latch 5 and the second latch 6 being arranged opposite to each other means that the first latch 5 and the second latch 6 can restrict the circuit board 3 between the first latch 5 and the second latch 6.
[0025] The first latch 5 and the second latch 6 both have L-shaped cross-sections. Specifically, one end of the first latch 5 is connected to the back plate 4, and one end of the second latch 6 is connected to the back plate 4. The other ends of the first latch 5, the other ends of the second latch 6, and the back plate 4 form an enclosing space, thereby limiting the front, left, and right sides of the circuit board 3 through the first latch 5 and the second latch 6. The back plate 4 includes a back plate body and a back plate side 15. The back plate body limits the rear side of the circuit board 3, and the back plate side 15 limits the lower side of the circuit board 3. Combined with the anti-retraction structure, the upper side of the circuit board 3 is limited, thus achieving relative fixation between the circuit board 3 and the back plate 4. Of course, the anti-retraction structure can also be used to limit the lower side of the circuit board 3.
[0026] The first buckle 5 and the second buckle 6 are integrally formed with the back plate 4.
[0027] The anti-retraction structure includes an anti-retraction bump 7, which matches the edge of the circuit board 3. Specifically, the anti-retraction bump 7 matching the edge of the circuit board 3 means that after the circuit board 3 is installed, the anti-retraction bump 7 is flush with the edge of the circuit board 3. The first latch 5 is located on one side of the circuit board 3 opposite to two sides, the second latch 6 is located on the other side of the circuit board 3 opposite to two sides, and the anti-retraction bump 7 can be located on one side of the other two sides of the circuit board 3. The anti-retraction bump 7 or the back plate side 15 can be located on the other side of the other two sides of the circuit board 3.
[0028] The circuit board 3 has two anti-reverse bumps 7, which are symmetrically arranged. The two anti-reverse bumps 7 can prevent the circuit board 3 from shaking, thus improving stability.
[0029] The anti-retraction protrusion 7 can be a spherical notch protrusion or a screw. When the anti-retraction protrusion 7 is a spherical notch protrusion, it can be integrally formed with the back plate 4; when the anti-retraction protrusion 7 is a screw, it can be threadedly connected to the back plate 4.
[0030] The sign light circuit board mounting structure of this utility model may further include a panel 1, which is snapped together with a back plate 4, and a circuit board 3 disposed between the panel 1 and the back plate 4. The snap-fit structure between the panel 1 and the back plate 4 can be a conventional technology such as a snap-fit.
[0031] The indicator light circuit board mounting structure of this utility model may further include a diffuser plate 2, which is connected to the panel 1 and disposed between the panel 1 and the circuit board 3. The diffuser plate 2 and the panel 1 are connected by adhesive.
[0032] The circuit board 3 is equipped with a light-emitting device 8 and a power cord 9. The back plate 4 has a power cord hole 10 and a fastening ring 12. The fastening ring 12 is located inside the power cord hole 10, and the power cord 9 passes through the fastening ring 12 to connect to the outside. The light-emitting device 8 can be an LED light. By setting the fastening ring 12, the risk of the power cord 9 breaking off from the circuit board 3 when pulled by external forces can be reduced.
[0033] The back panel 4 is provided with a wall-mounting hole 11, a connecting piece 13, and a baffle 14. One end of the connecting piece 13 is connected to the edge of the wall-mounting hole 11, and the other end of the connecting piece 13 is connected to the baffle 14. The shape of the baffle 14 matches the wall-mounting hole 11. The back panel 4 can be directly fixed to the wall surface through the wall-mounting hole 11. By setting the baffle 14, damage to the diffuser plate 2 can be prevented when fixing the back panel 4 to the wall surface, and objects such as conductors like metal sheets can be prevented from entering the interior and causing damage.
[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A circuit board mounting structure for a sign light, characterized in that, It includes a circuit board (3) and a back plate (4). The circuit board (3) is connected to the back plate (4) through a snap-fit structure and an anti-retraction structure provided on the back plate (4).
2. The sign light circuit board mounting structure according to claim 1, characterized in that, The buckle structure includes a first buckle (5) and a second buckle (6), with the first buckle (5) and the second buckle (6) arranged opposite to each other.
3. The sign light circuit board mounting structure according to claim 2, characterized in that, Both the first buckle (5) and the second buckle (6) have L-shaped cross sections.
4. The sign light circuit board mounting structure according to claim 1, characterized in that, The anti-retraction structure includes an anti-retraction bump (7) that matches the edge of the circuit board (3).
5. The sign light circuit board mounting structure according to claim 4, characterized in that, There are two anti-retraction bumps (7), and the two anti-retraction bumps (7) are set symmetrically.
6. The sign light circuit board mounting structure according to claim 4, characterized in that, The anti-retraction protrusion (7) is a spherical protrusion or a screw.
7. The sign light circuit board mounting structure according to claim 1, characterized in that, It also includes a panel (1), which is snapped together with a back plate (4), and a circuit board (3) is disposed between the panel (1) and the back plate (4).
8. The sign light circuit board mounting structure according to claim 7, characterized in that, It also includes a diffuser plate (2), which is connected to the panel (1) and is disposed between the panel (1) and the circuit board (3).
9. The sign light circuit board mounting structure according to claim 1, characterized in that, The circuit board (3) is provided with a light-emitting device (8) and a power cord (9). The back plate (4) is provided with a power cord hole (10) and a fastening ring (12). The fastening ring (12) is located inside the power cord hole (10), and the power cord (9) passes through the fastening ring (12) to connect to the outside.
10. The sign light circuit board mounting structure according to claim 1, characterized in that, The back panel (4) is provided with a wall-mounting hole (11), a connecting piece (13) and a baffle (14). One end of the connecting piece (13) is connected to the edge of the wall-mounting hole (11), and the other end of the connecting piece (13) is connected to the baffle (14).