A lighted sign

Abstract

The utility model discloses a luminous signboard, it includes conducting support layer, conducting circuit, luminous layer and plastic layer, the front side of conducting support layer is equipped with conducting circuit and luminous layer in proper order, and the back side of conducting support layer is equipped with plastic layer, conducting circuit includes circuit layer, conducting plug and a plurality of lamp pearl, and circuit layer is located on conducting support layer, and conducting plug and lamp pearl are electrically connected with circuit layer respectively, and conducting plug is inserted in conducting support layer, and extends plastic layer, luminous layer encapsulates conducting circuit, and plastic layer and conducting support layer and conducting plug are one injection molding structure, the utility model discloses including conducting support layer, conducting circuit, luminous layer and plastic layer's integral structure, and the back side of conducting support layer is equipped with the conducting plug of the plug -in of inserting, has effectively reduced the space of wire harness, makes the thickness of product whole thin, can satisfy the installation demand of close installation under limited space, and the plug -in of adopting conducting plug has the advantages, such as structural stability, convenient installation.

Description

Technical Field

[0001] This utility model relates to the field of signage technology, specifically to a luminous sign. Background Technology

[0002] Signage is an indispensable decorative component in products such as automobiles, home appliances, consumer electronics, and medical devices. Its function is to enhance the appearance and decoration while improving the brand's promotional effect. In the wave of intelligentization and electrification, in order to improve brand recognition, existing signs are increasingly being made into illuminated structures, providing users with a more three-dimensional, humanized, and intelligent interactive experience.

[0003] Many current signs are composed of rigid lamp bodies, circuit boards, and sign components (such as the prior art with application publication number CN114312597A, entitled "A Vehicle Illuminated Emblem"). The rigid lamp body contains a circuit board with printed conductive lines and soldered LED beads and other components. The circuit board is led out through a wire harness composed of ribbon cables to achieve conductive connection with external terminals. The sign components are connected to the surface of the rigid lamp body.

[0004] This sign structure requires the sequential assembly of multiple components to achieve the finished product, and also necessitates reserving space for wiring harness layout, resulting in a large overall product thickness that makes it difficult to meet the compact installation requirements within limited space. Furthermore, the method of using ribbon cables led from the edge of the circuit board to form a wiring harness for connection to external terminals requires alignment before insertion, making installation inconvenient. Additionally, the wiring harness is prone to breakage after repeated bending, affecting the stability of the connection. Utility Model Content

[0005] The purpose of this utility model is to provide a luminous sign with a thin overall thickness, which can meet the compact installation requirements in limited space, and has a stable structure and is easy to install.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A luminous signboard includes a conductive support layer, conductive circuitry, a luminous layer, and a plastic layer; The conductive support layer has the conductive circuit and the light-emitting layer arranged sequentially on the front side, and the plastic layer is arranged on the rear side of the conductive support layer; The conductive circuit includes a circuit layer, a conductive plug, and several LED beads. The circuit layer is disposed on the conductive support layer. The conductive plug and LED beads are electrically connected to the circuit layer. The conductive plug is inserted into the conductive support layer and extends out of the plastic layer. The light-emitting layer encapsulates the conductive circuit; The plastic layer, the conductive support layer, and the conductive plug are injection molded into a single structure.

[0007] Furthermore, a luminous sign also includes a reflective layer and an outer film layer, wherein the reflective layer covers the front surface of the luminous layer and the outer film layer is disposed on the reflective layer.

[0008] Furthermore, the total thickness of the conductive support layer, conductive circuit, light-emitting layer, reflective layer, outer film layer, and plastic layer is 2.5mm-5mm.

[0009] Furthermore, a luminous sign also includes a heat dissipation layer that covers the plastic layer.

[0010] Furthermore, the conductive support layer has mounting holes, the conductive plug is inserted into the mounting holes, and the conductive plug is electrically connected to the circuit layer through the conductive material at the edge of the mounting holes.

[0011] Furthermore, the conductive plug includes a connecting part and a plug-in part, the connecting part and the plug-in part are T-shaped, the connecting part abuts against the outside of the mounting hole, the conductive material of the connecting part and the edge of the mounting hole is conductive silver paste, and the plug-in part is inserted into the mounting hole.

[0012] Furthermore, the conductive circuit also includes an encapsulation layer, and the connection between the connection portion and the conductive support layer and the circuit layer is encapsulated with an adhesive to form the encapsulation layer.

[0013] Furthermore, the light-emitting layer, the plastic layer, the conductive support layer, and the conductive plug are an injection-molded structure.

[0014] Furthermore, the conductive support layer is a flexible thin film, and the circuit layer is printed on the conductive support layer.

[0015] Furthermore, the plastic layer extends rearward and is provided with a socket, a positioning post, and a plug. The socket is arranged around the conductive plug, the positioning post is connected to the positioning port of the external device, and the plug is mated with the socket of the external device.

[0016] By adopting the above technical solution, this utility model has the following advantages compared with the prior art: 1. This utility model includes an integrated structure of a conductive support layer, a conductive circuit, a light-emitting layer, and a plastic layer. A conductive plug for connecting to an external device is provided on the rear side of the conductive support layer. The conductive plug is molded into the plastic layer, which effectively reduces the space of the wire harness and makes the overall thickness of the product thin. This meets the compact installation requirements in limited space. Furthermore, the use of a conductive plug for connection has the advantages of structural stability and convenient installation.

[0017] 2. In this utility model, the light-emitting layer and the plastic layer are injection-molded structures. The injection molding of the light-emitting layer and the plastic layer is completed in one step through the mold. This not only enables the light-emitting layer, the plastic layer, the conductive support layer, and the conductive plug to be tightly integrated into one unit, improving the structural strength of the product, but also allows the semi-finished product to be directly molded in one production cycle, greatly improving the production efficiency of the product.

[0018] 3. This utility model has a heat dissipation layer on the plastic layer on the back of the sign. The heat dissipation layer can improve the heat dissipation efficiency of the sign and prevent the components on the conductive circuit from overheating and affecting their service life.

[0019] 4. The conductive support layer of this utility model is made of a flexible film, which is not only easy to process and bend, but also can adapt to different installation environments. Moreover, the circuit layer on the conductive support layer is formed by printing or etching, which is simple and low in cost.

[0020] 5. The conductive plug of this utility model achieves convenient installation while ensuring its reliability through the positioning of the positioning post and the anti-loosening design of the insertion post. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model (front view). Figure 2 This is a schematic diagram of the structure of this utility model (rear view). Figure 3 This is a schematic diagram of the structure of the present invention (partial layered structure omitted); Figure 4 This is a cross-sectional view of a partial structure of the present invention; Figure 5 for Figure 4 A magnified view of a portion of the image; Figure 6 This is a schematic diagram of the layered structure of this utility model.

[0022] Explanation of reference numerals in the attached figures: Conductive support layer 100, mounting hole 110; Conductive circuit 200, circuit layer 210, conductive plug 220, connecting part 221, plug-in part 222. LED chip 230, conductive material 240, encapsulation layer 250; 300 emissive layer; Reflective layer 400; 500 outer membrane layers; Plastic layer 600, socket 610, positioning post 620, insertion post 630; Heat dissipation layer 700. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, it should be noted that: The terms “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “inner,” and “outer” are based on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing this utility model and simplifying the description. They are not intended to indicate or imply that the device or element of this utility model must have a specific orientation and therefore should not be construed as a limitation on this utility model.

[0024] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0025] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections 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. Example

[0026] Cooperate Figure 1 , Figures 4 to 6 As shown, this utility model discloses a luminous sign, including a conductive support layer 100, a conductive circuit 200, a light-emitting layer 300, a reflective layer 400, an outer film layer 500, a plastic layer 600, and a heat dissipation layer 700.

[0027] The conductive support layer 100 has a conductive line 200 and a light-emitting layer 300 arranged sequentially on its front side, and a plastic layer 600 arranged on its rear side. A reflective layer 400 covers the front surface of the light-emitting layer 300, an outer film layer 500 is disposed on the reflective layer 400, and a heat dissipation layer 700 covers the plastic layer 600. The heat dissipation layer 700 can be made of thermally conductive ink containing metal fillers. The heat generated by the conductive line 200 during operation can be conducted through the conductive support layer 100 and the light-emitting layer 300, and can also be transferred to the heat dissipation layer 700 on the back side through the plastic layer 600, and finally efficiently dissipated into the surrounding environment. This can significantly reduce the operating temperature of the conductive line 200 and extend its service life.

[0028] In this embodiment, the total thickness of the conductive support layer 100, conductive line 200, light-emitting layer 300, reflective layer 400, appearance film layer 500 and plastic layer 600 is 2.5mm-5mm, preferably 3mm, which ensures the overall structural stability of the sign while making the sign sufficiently thin.

[0029] Cooperate Figure 1 , Figure 3 , Figures 4 to 6 As shown, the conductive circuit 200 includes a circuit layer 210, a conductive plug 220, and several LED beads 230. The circuit layer 210 is disposed on the conductive support layer 100. The conductive plug 220 and the LED beads 230 are electrically connected to the circuit layer 210. The conductive plug 220 is inserted into the conductive support layer 100 and extends out of the plastic layer 600. The conductive support layer 100 is made of a flexible film (such as polyimide film or polyester film), which can achieve a sufficiently thin thickness and is easy to process. The circuit layer 210 is formed on the conductive support layer 100 by printing conductive ink or etching copper foil, and then the LED beads 230 and other components are mounted. The LED beads 230 are preferably LEDs, and their number can be arranged according to actual needs.

[0030] The light emitted by the LED 230, scattered forward, is efficiently reflected back into the light-emitting layer 300 by the opaque reflective layer 400. It then shines evenly from the edges or specific patterned areas of the sign via total internal reflection or lateral light guidance, creating a uniform luminous effect and preventing the visibility of point light sources. This enhances the prominence of the pattern or shape of the outer film layer 500, making the sign appear more premium. Simultaneously, the outer film layer 500, covering the reflective layer 400 (e.g., bonded with adhesive), can be a transparent or semi-transparent decorative film with a brand logo, or a thin film with a metallic texture. This film layer 500 not only constitutes the final appearance of the product but also provides secondary diffuse reflection or color filtering of the emitted light, improving the product's visual quality.

[0031] A mounting hole 110 is provided on the conductive support layer 100. A conductive plug 220 is inserted into the mounting hole 110. The conductive plug 220 is conductively connected to the circuit layer 210 through the conductive material 240 at the edge of the mounting hole 110. In this embodiment, the conductive plug 220 includes a connecting portion 221 and a plug-in portion 222. The connecting portion 221 and the plug-in portion 222 are T-shaped. The connecting portion 221 abuts against the outside of the mounting hole 110. The conductive material 240 at the edge of the connecting portion 221 and the mounting hole 110 is made of conductive silver paste. The plug-in portion 222 is inserted into the mounting hole 110.

[0032] The conductive line 200 also includes an encapsulation layer 250. The connection between the connection portion 221 and the conductive support layer 100 and the line layer 210 is partially encapsulated with an adhesive (such as a UV-type adhesive) to form the encapsulation layer 250, which can improve the structural stability of the conductive plug 220.

[0033] The light-emitting layer 300, the plastic layer 600, the conductive support layer 100, and the conductive plug 220 are an integral structure formed by a two-color injection mold. This allows the light-emitting layer 300 to encapsulate the conductive circuit 200, and the plastic layer 600 to encapsulate the conductive support layer 100. The injection molding of the light-emitting layer 300 and the plastic layer 600 is completed in one step by the two-color injection mold. This not only allows the light-emitting layer 300, the plastic layer 600, the conductive support layer 100, and the conductive plug 220 to be tightly integrated into one unit, improving the structural strength of the product, but also allows the semi-finished product to be directly formed in one production cycle, greatly improving the production efficiency of the product.

[0034] Cooperate Figures 1 to 4 As shown, the plastic layer 600 extends rearward and is provided with a socket 610, a positioning post 620, and a insertion post 630. The socket 610 surrounds the conductive plug 220, the positioning post 620 connects to the positioning port of the external device, and the insertion post 630 mates with the socket 610 of the external device. By connecting the conductive plug 220 within the socket 610 to an external device (such as a vehicle power socket), the sign can be powered on. This solves the drawbacks of traditional wiring harnesses and terminals, making it more convenient and reliable. Simultaneously, when the conductive plug 220 is inserted, the positioning post 620 connects to the positioning port of the external device, ensuring accurate insertion, while the insertion post 630 mates with the socket 610 of the external device, ensuring the conductive plug 220 is not easily dislodged.

[0035] Cooperate Figures 1 to 6 As shown, the manufacturing process of this utility model is as follows: (1) Print the circuit layer 210 on the front side of the conductive support layer 100 and perform anti-oxidation treatment on the surface, and make blanking holes in the conductive support layer 100 to form mounting holes 110.

[0036] (2) The conductive plug 220 is passed through the mounting hole 110 of the conductive support layer 100, and conductive silver paste is applied between the conductive plug 220 and the conductive support layer 100. Then, UV-type adhesive is used to partially encapsulate the connection between the conductive plug 220, the conductive support layer 100 and the circuit layer 210 to form an encapsulation layer 250.

[0037] (3) After the components are mounted on the conductive support layer 100, the whole assembly is placed into a two-color injection mold for injection molding to form the light-emitting layer 300 and the plastic layer 600.

[0038] (4) After injection molding, ink is printed on the front surface of the light-emitting layer 300 to form a reflective layer 400, and then a film is covered to form an appearance film layer 500.

[0039] (5) Ink is printed on the back of the plastic layer 600 to form a heat dissipation layer 700.

[0040] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A luminous sign, characterized in that: It includes a conductive support layer, conductive circuitry, a light-emitting layer, and a plastic layer; The conductive support layer has the conductive circuit and the light-emitting layer arranged sequentially on the front side, and the plastic layer is arranged on the rear side of the conductive support layer; The conductive circuit includes a circuit layer, a conductive plug, and several LED beads. The circuit layer is disposed on the conductive support layer. The conductive plug and LED beads are electrically connected to the circuit layer. The conductive plug is inserted into the conductive support layer and extends out of the plastic layer. The light-emitting layer encapsulates the conductive circuit; The plastic layer, the conductive support layer, and the conductive plug are injection molded into a single structure.

2. A luminous sign as described in claim 1, characterized in that: It also includes a reflective layer and an appearance film layer, wherein the reflective layer covers the front surface of the light-emitting layer and the appearance film layer is disposed on the reflective layer.

3. A luminous sign as described in claim 2, characterized in that: The total thickness of the conductive support layer, conductive circuit, light-emitting layer, reflective layer, outer film layer and plastic layer is 2.5mm-5mm.

4. A luminous sign as described in claim 1, characterized in that: It also includes a heat dissipation layer that covers the plastic layer.

5. A luminous sign as described in claim 1, characterized in that: The conductive support layer has mounting holes, and the conductive plug is inserted into the mounting holes. The conductive plug is electrically connected to the circuit layer through the conductive material at the edge of the mounting holes.

6. A luminous sign as described in claim 5, characterized in that: The conductive plug includes a connecting part and a plug-in part, which are T-shaped. The connecting part abuts against the outside of the mounting hole, and the conductive material of the connecting part and the edge of the mounting hole is conductive silver paste. The plug-in part is inserted into the mounting hole.

7. A luminous sign as described in claim 6, characterized in that: The conductive circuit also includes an encapsulation layer, and the connection between the connection portion and the conductive support layer and the circuit layer is encapsulated with adhesive to form the encapsulation layer.

8. A luminous sign as described in claim 1, characterized in that: The light-emitting layer, the plastic layer, the conductive support layer, and the conductive plug are an injection-molded structure.

9. A luminous sign as described in claim 1, characterized in that: The conductive support layer is a flexible thin film, and the circuit layer is printed on the conductive support layer.

10. A luminous sign as described in claim 1, characterized in that: The plastic layer extends rearward and is provided with a socket, a positioning post, and a plug. The socket is arranged around the conductive plug, the positioning post is connected to the positioning port of the external device, and the plug is inserted into the socket of the external device.

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