Novel electronic license plate body and electronic license plate
By employing ultrasonic welding and sealing ring design, combined with PC material and transparent plate, the problem of poor sealing in electronic license plates has been solved, achieving dual sealing and structural stability, adapting to various installation positions and environments, and supporting high-precision recognition.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI DINGSHANGMINGXING TECH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-12
AI Technical Summary
Existing electronic license plates suffer from insufficient waterproofing due to poor sealing during welding or gluing, which can easily lead to defects on the welded or glued surfaces, affecting the product's lifespan and the safety of its components.
The design employs ultrasonic welding combined with a sealing ring. The first seal is formed by ultrasonic welding of the first and second convex edges, and the sealing ring forms the second seal. The uniformity of welding and the limiting effect are ensured by setting a fourth convex edge, a raised part and a groove. PC material and PC transparent sheet are used to improve structural strength and durability.
It achieves a dual-sealing function, enhances waterproofing, ensures welding quality and overall structural stability of the product, adapts to different installation positions and harsh environments, and supports long-distance identification and high-precision positioning.
Smart Images

Figure CN224354933U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electronic license plate technology, and in particular to a novel electronic license plate body and electronic license plate. Background Technology
[0002] With the increasing number of two-wheeled electric vehicles and motorcycles in cities, traffic violations are also on the rise. Even at intersections with traffic signals, these vehicles frequently engage in illegal driving behaviors such as running red lights and using motor vehicle lanes, leading to frequent traffic accidents in densely populated areas. Therefore, to regulate the driving behavior of non-motorized vehicle drivers, electronic license plates have been introduced to the market. These electronic license plates can be combined with RFID (Radio Frequency Identification) technology to achieve intelligent traffic management. However, existing electronic license plates, when connected using ultrasonic welding or adhesive bonding, have difficulty controlling the connection quality of the welded or adhesive surfaces, which can easily lead to defects such as poor sealing. Utility Model Content
[0003] To address the aforementioned problems, this application provides a novel electronic license plate body and electronic license plate. The novel electronic license plate body features an ingenious design and simple structure. This application also boasts excellent sealing performance and strong waterproofing capabilities. The technical solution adopted in this application is as follows:
[0004] A novel electronic license plate body includes an upper cover and a lower cover. The upper cover includes an upper cover body with a first protruding edge located on one side of the upper cover body and disposed along its edge, and the first protruding edge is closed circumferentially around the upper cover body. The lower cover includes a lower cover body with a second protruding edge located on one side of the lower cover body and disposed along its edge, and the second protruding edge is closed circumferentially around the lower cover body. The first and second protruding edges are directly opposite each other, and their top surfaces are ultrasonically welded together. The side of the lower cover body with the second protruding edge also has a first groove for installing a sealing ring, the first groove being located within the space enclosed by the second protruding edge. The side of the upper cover body with the first protruding edge also has a third protruding edge, the third protruding edge being directly opposite the first groove.
[0005] By incorporating a first groove and a third protruding edge, when a sealing ring is placed in the first groove, the top surface of the third protruding edge presses against and compresses the sealing ring, causing it to deform. This improves the sealing effect and enhances the product's waterproof capability. The ultrasonic welding of the first and second protruding edges forms the first seal, while the sealing ring forms the second seal, meaning the product has a dual-sealing function. Even if the first seal is damaged or has quality issues, the presence of the second seal ensures the product's sealing function, preventing damage to internal components.
[0006] In some embodiments, the lower cover body has a fourth protruding edge on the side where the second protruding edge is located. The fourth protruding edge is located between the second protruding edge and the first groove, and the fourth protruding edge is higher than the second protruding edge. When the first protruding edge and the second protruding edge are ultrasonically welded, the fourth protruding edge abuts against the upper cover body.
[0007] By providing a fourth protruding edge, when the first and second protruding edges are ultrasonically welded, the fourth protruding edge abuts against the upper cover body. The abutment between the fourth protruding edge and the upper cover body serves as a limiting function, which can control the distance between the upper cover body and the lower cover body during the ultrasonic welding process of the first and second protruding edges. This, in turn, controls the degree of fit between the top surfaces of the first and second protruding edges, ensuring a uniform connection between the first and second protruding edges, and thus ensuring the quality of ultrasonic welding.
[0008] In some embodiments, when the first and second protruding edges are not ultrasonically welded, the top surface of the second protruding edge is provided with a protrusion, which is closed along the extending direction of the second protruding edge. The top surface of the first protruding edge is provided with a groove, which is closed along the extending direction of the first protruding edge. The protrusion and the groove are positioned opposite each other. When the first and second protruding edges are ultrasonically welded, the protrusion melts into the groove.
[0009] By setting up protrusions and grooves, the protrusions can be fully melted during ultrasonic welding, and the melted protrusions will first fill the grooves. This ensures the uniformity of ultrasonic welding between the first and second protrusions, ensuring the quality of ultrasonic welding, and reducing the risk of poor sealing between the first and second protrusions.
[0010] In some embodiments, the upper cover body has a recessed platform on the side away from the first convex edge, and the recessed platform is used to place a sign.
[0011] By setting a recessed platform, the sign can be placed in the recessed platform, which reduces the risk of the sign falling off the top cover, while ensuring the overall aesthetics of the product after the sign is installed on the top cover.
[0012] In some embodiments, two waist-shaped holes are provided near the long edge of the upper cover and near the long edge of the lower cover, and the waist-shaped holes of the upper cover and the lower cover are directly opposite each other.
[0013] By setting the waist-shaped hole, the electronic license plate body's ability to adapt to different spacing installation positions is improved, enhancing the versatility of the electronic license plate body.
[0014] In some embodiments, both the upper cover and the lower cover are made of PC material.
[0015] PC material has excellent properties such as high strength, impact resistance, and aging resistance. Using PC material to make the top and bottom covers can ensure that the overall structure of the license plate is not easily damaged under vehicle bumps and vibrations and different harsh weather conditions, and can play a good role in protecting the internal components of the license plate, while meeting the license plate warranty requirements.
[0016] On the other hand, this application also provides an electronic license plate, including an RFID module and the aforementioned novel electronic license plate body, wherein the RFID module is housed within the novel electronic license plate body.
[0017] In some implementations, the RFID module is an active RFID module.
[0018] Active RFID modules can actively transmit signals and support long-distance identification, while passive RFID modules rely on the electromagnetic waves of the reading and writing device for power and can only passively respond to signals. Their identification distance is shorter than that of active RFID modules. Active RFID modules are more suitable for scenarios that require real-time tracking and high-precision positioning.
[0019] In some embodiments, a nameplate is provided on the side of the upper cover body away from the first protruding edge. The main body of the nameplate is a PC transparent plate. The PC transparent plate is ultrasonically welded to the upper cover body. Text markings are provided on the inner side of the PC transparent plate. The text markings are formed using a UV printing process.
[0020] By using transparent PC sheets as the main body of the signage, high transparency is ensured, making it resistant to breakage and suitable for long-term outdoor use. UV printing technology is used to create the text, ensuring strong adhesion and preventing the text from easily peeling off.
[0021] The novel electronic license plate body and electronic license plate provided in this application have at least one of the following beneficial effects:
[0022] 1. This application provides a novel electronic license plate body. By providing a first groove and a third protruding edge, when a sealing ring is placed in the first groove, the top surface of the third protruding edge presses against the sealing ring and compresses it, causing the sealing ring to deform, thereby improving the sealing effect and enhancing the waterproof capability of the product. The ultrasonic welding of the first and second protruding edges forms the first seal of the product, and the sealing ring forms the second seal, meaning that the product has a dual sealing function. Even if the first seal is damaged or has quality problems, the presence of the second seal ensures the sealing function of the product and prevents damage to the internal components.
[0023] 2. The novel electronic license plate body provided in this application, by setting a fourth protruding edge, when the first protruding edge and the second protruding edge are ultrasonically welded, the fourth protruding edge abuts against the upper cover body. The abutment between the fourth protruding edge and the upper cover body plays a limiting role, which can control the distance between the upper cover body and the lower cover body during the ultrasonic welding process of the first protruding edge and the second protruding edge, thereby controlling the degree of fit between the top surface of the first protruding edge and the top surface of the second protruding edge, ensuring that the first protruding edge and the second protruding edge are uniformly connected, thereby ensuring the quality of ultrasonic welding.
[0024] 3. The novel electronic license plate body provided in this application, by setting a protrusion and a groove, allows the protrusion to fully melt during ultrasonic welding, and the melted protrusion first fills the groove. This ensures the uniformity of ultrasonic welding between the first and second protrusions, ensuring the quality of ultrasonic welding, and reducing the risk of poor sealing between the first and second protrusions.
[0025] 4. The present application provides a novel electronic license plate body in which the license plate is placed in a recessed platform, which can reduce the risk of the license plate falling off the top cover, while ensuring the overall aesthetics of the product after the license plate is installed on the top cover.
[0026] 5. The new type of electronic license plate body provided in this application improves the ability of the electronic license plate body to adapt to different spacing installation positions by setting waist-shaped holes, thereby enhancing the versatility of the electronic license plate body.
[0027] 6. The new electronic license plate body provided in this application uses PC material, which has excellent properties such as high strength, impact resistance, and aging resistance. The upper and lower covers are made of PC material, which can ensure that the overall structure of the license plate is not easily damaged under vehicle bumps and vibrations and different harsh weather conditions, and provides good protection for the internal components of the license plate, and meets the license plate warranty requirements.
[0028] 7. The electronic license plate provided in this application has an active RFID module that can actively transmit signals and support long-distance identification, while the passive RFID module relies on the electromagnetic waves of the reading and writing device for power and can only passively respond to signals. Its identification distance is shorter than that of the active RFID module. The active RFID module is more suitable for scenarios that require real-time tracking and high-precision positioning.
[0029] 8. The electronic license plate provided in this application, by using a transparent PC sheet as the main body of the sign, ensures high transparency, is not easily broken, and is suitable for long-term outdoor use. The text markings are produced using UV printing technology, ensuring strong adhesion between the text markings and the transparent PC sheet, preventing the text markings from easily falling off. Attached Figure Description
[0030] The preferred embodiments will be described below in a clear and easy-to-understand manner, with reference to the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of a novel electronic license plate body and electronic license plate:
[0031] Figure 1 This is a schematic diagram of the inner structure of the lower cover of this application;
[0032] Figure 2 This is a schematic diagram of the inner structure of the cover of this application;
[0033] Figure 3 This is a schematic diagram of the product after the top and bottom covers are assembled, with the outer side of the top cover facing upwards.
[0034] Explanation of icon numbers:
[0035] Upper cover 1, upper cover body 11, first raised edge 12, groove 121, third raised edge 13, concave platform 14, lower cover 2, lower cover body 21, second raised edge 22, protrusion 221, first groove 23, fourth raised edge 24, waist-shaped hole 3. Detailed Implementation
[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.
[0037] To keep the drawings concise, each drawing only schematically shows the parts relevant to this application, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."
[0038] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0039] In this document, it should be noted that, unless otherwise explicitly 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0040] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0041] refer to Figures 1-3 This application provides a novel electronic license plate body, including an upper cover 1 and a lower cover 2. The upper cover 1 includes an upper cover body 11, which has a first protruding edge 12 located on one side of the upper cover body 11 and disposed at the edge of the upper cover body 11, and the first protruding edge 12 is closed around the circumference of the upper cover body 11. The lower cover 2 includes a lower cover body 21, which has a second protruding edge 22 located on one side of the lower cover body 21 and disposed at the edge of the lower cover body 21, and the second protruding edge 22 is closed around the circumference of the upper cover body 11. Part 22 is closed around the circumference of the lower cover body 21; the first protruding edge 12 and the second protruding edge 22 are directly opposite each other, and the top surface of the first protruding edge 12 and the top surface of the second protruding edge 22 are ultrasonically welded; the side of the lower cover body 21 with the second protruding edge 22 is also provided with a first groove 23 for installing a sealing ring, and the first groove 23 is located in the space enclosed by the second protruding edge 22; the side of the upper cover body 11 with the first protruding edge 12 is also provided with a third protruding edge 13, and the third protruding edge 13 is directly opposite the first groove 23.
[0042] Specifically, both the upper cover 1 and the lower cover 2 are made of non-metallic materials and are injection molded. It is easy to understand that by setting the first groove 23 and the third protruding edge 13, when a sealing ring (not shown in the figure) is placed in the first groove 23, the top surface of the third protruding edge 13 presses against the sealing ring and compresses it, causing the sealing ring to deform, thereby improving the product's sealing effect and enhancing its waterproof capability. The ultrasonic welding of the first protruding edge 12 and the second protruding edge 22 forms the product's first seal, and the sealing ring forms the product's second seal, meaning the product has a dual sealing function. Even if the first seal is damaged or has quality problems, the existence of the second seal ensures the product's sealing function and prevents damage to the internal components.
[0043] refer to Figure 1 , Figure 2 In one embodiment, the lower cover body 21 is provided with a fourth protruding edge 24 on the side where the second protruding edge 22 is provided. The fourth protruding edge 24 is located between the second protruding edge 22 and the first groove 23, and the fourth protruding edge 24 is higher than the second protruding edge 22. When the first protruding edge 12 and the second protruding edge 22 are ultrasonically welded, the fourth protruding edge 24 abuts against the upper cover body 11.
[0044] It is worth noting that by providing a fourth protruding edge 24, when the first protruding edge 12 and the second protruding edge 22 are ultrasonically welded, the fourth protruding edge 24 abuts against the upper cover body 11. The abutment between the fourth protruding edge 24 and the upper cover body 11 plays a limiting role, which can control the distance between the upper cover body 11 and the lower cover body 21 during the ultrasonic welding process of the first protruding edge 12 and the second protruding edge 22, thereby controlling the degree of fit between the top surface of the first protruding edge 12 and the top surface of the second protruding edge 22, ensuring that the first protruding edge 12 and the second protruding edge 22 are uniformly connected, thereby ensuring the quality of ultrasonic welding.
[0045] refer to Figure 1 , Figure 2 In one embodiment, when the first protruding edge 12 and the second protruding edge 22 are not ultrasonically welded, the top surface of the second protruding edge 22 is provided with a protrusion 221, which is closed along the extending direction of the second protruding edge 22. The top surface of the first protruding edge 12 is provided with a groove 121, which is closed along the extending direction of the first protruding edge 12. The protrusion 221 and the groove 121 are directly opposite each other. When the first protruding edge 12 and the second protruding edge 22 are ultrasonically welded, the protrusion 221 melts into the groove 121.
[0046] It is important to note that by providing the protrusion 221 and the groove 121, the protrusion 221 can be fully melted during ultrasonic welding, and the melted protrusion 221 will first fill the groove 121. This ensures the uniformity of ultrasonic welding between the first protruding edge 12 and the second protruding edge 22, ensuring the quality of ultrasonic welding. In other words, it reduces the risk of poor sealing between the first protruding edge 12 and the second protruding edge 22.
[0047] refer to Figure 3 In one embodiment, a recessed platform 14 is provided on the side of the upper cover body 11 away from the first protruding edge 12. The recessed platform 14 is used to place the label. It is easy to understand that by providing the recessed platform 14, the label is placed in the recessed platform 14, which reduces the risk of the label falling off the upper cover 1, while ensuring the overall aesthetics of the product after the label is installed on the upper cover 1.
[0048] refer to Figures 1-3 In one embodiment, two waist-shaped holes 3 are provided near the long edge of the upper cover 1 and near the long edge of the lower cover 2, and the waist-shaped holes 3 of the upper cover 1 and the waist-shaped holes 3 of the lower cover 2 are directly opposite each other.
[0049] Understandably, compared to round holes, the addition of the oblong hole 3 enhances the electronic license plate's ability to adapt to different installation positions, thereby improving its versatility.
[0050] In one embodiment, both the upper and lower covers are made of PC (polycarbonate) material. PC material possesses excellent properties such as high strength, impact resistance, and aging resistance. Using PC material to make the upper and lower covers ensures that the overall structure of the license plate is not easily damaged by vehicle bumps and vibrations, as well as various harsh weather conditions, and provides good protection for the internal components of the license plate, meeting the license plate warranty requirements. In other embodiments, the materials used to make the upper and lower covers can also be polymethyl methacrylate (PMMA), polystyrene (GPPS), styrene-acrylonitrile (AS), styrene-methyl methacrylate copolymer (MS), etc.
[0051] On the other hand, this application also provides an electronic license plate, including an RFID module and the aforementioned novel electronic license plate body, wherein the RFID module is housed within the novel electronic license plate body. The specific structure of the novel electronic license plate body is as described in the foregoing embodiments. Since this electronic license plate adopts the technical solutions of the foregoing embodiments, it at least has the beneficial effects brought about by the technical solutions of the foregoing embodiments, which will not be elaborated further here.
[0052] In one embodiment, the RFID module is an active RFID module. It is understood that an active RFID module can actively transmit signals and support long-distance identification, while a passive RFID module relies on the electromagnetic waves of the reader / writer for power and can only passively respond to signals. Its identification distance is shorter compared to active RFID modules. Active RFID modules are more suitable for scenarios requiring real-time tracking and high-precision positioning.
[0053] In one embodiment, a nameplate is provided on the side of the top cover body away from the first protruding edge. The main body of the nameplate is a PC transparent plate, which is ultrasonically welded to the top cover body. Text markings are provided on the inner side of the PC transparent plate, and the text markings are formed using UV printing technology.
[0054] Understandably, using a transparent PC sheet as the main body of the sign ensures high transparency, reduces the risk of breakage, and makes it suitable for long-term outdoor use. Using UV printing to create the text ensures strong adhesion of the text to the transparent PC sheet, preventing it from easily detaching. In other embodiments, the material used to make the main body of the sign can also be polymethyl methacrylate (PMMA), polystyrene (GPPS), styrene-acrylonitrile (AS), styrene-methyl methacrylate copolymer (MS), etc.
[0055] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A novel electronic license plate body, characterized in that, The device includes an upper cover and a lower cover. The upper cover includes an upper cover body with a first protruding edge located on one side of the upper cover body and disposed along its edge, and the first protruding edge is closed circumferentially around the upper cover body. The lower cover includes a lower cover body with a second protruding edge located on one side of the lower cover body and disposed along its edge, and the second protruding edge is closed circumferentially around the lower cover body. The first and second protruding edges are directly opposite each other, and their top surfaces are ultrasonically welded together. The lower cover body also has a first groove for installing a sealing ring on the side with the second protruding edge, and the first groove is located within the space enclosed by the second protruding edge. The upper cover body also has a third protruding edge on the side with the first protruding edge, and the third protruding edge is directly opposite the first groove.
2. The novel electronic license plate body according to claim 1, characterized in that, The lower cover body has a fourth protruding edge on one side of the second protruding edge. The fourth protruding edge is located between the second protruding edge and the first groove, and the fourth protruding edge is higher than the second protruding edge. When the first protruding edge and the second protruding edge are ultrasonically welded, the fourth protruding edge abuts against the upper cover body.
3. The novel electronic license plate body according to claim 1, characterized in that, When the first protruding edge and the second protruding edge are not ultrasonically welded, the top surface of the second protruding edge is provided with a protrusion, which is closed along the extension direction of the second protruding edge. The top surface of the first protruding edge is provided with a groove, which is closed along the extension direction of the first protruding edge. The protrusion and the groove are directly opposite each other. When the first protruding edge and the second protruding edge are ultrasonically welded, the protrusion melts into the groove.
4. A novel electronic license plate body according to any one of claims 1-3, characterized in that, The upper cover body has a recessed platform on the side away from the first convex edge, and the recessed platform is used to place a sign.
5. A novel electronic license plate body according to claim 4, characterized in that, Two waist-shaped holes are provided near the long edge of the upper cover and near the long edge of the lower cover, and the waist-shaped holes of the upper cover and the lower cover are directly opposite each other.
6. A novel electronic license plate body according to claim 4, characterized in that, Both the upper cover and the lower cover are made of PC material.
7. An electronic license plate, characterized in that, The system includes an RFID module and a novel electronic license plate body as described in any one of claims 1-6, wherein the RFID module is housed within the novel electronic license plate body.
8. An electronic license plate according to claim 7, characterized in that, The RFID module is an active RFID module.
9. An electronic license plate according to claim 8, characterized in that, A nameplate is provided on the side of the upper cover body away from the first protruding edge. The main body of the nameplate is a PC transparent board. The PC transparent board is ultrasonically welded to the upper cover body. Text markings are provided on the inner side of the PC transparent board. The text markings are formed using UV printing technology.