Sealing strip special for electromagnetic protection of vehicle and vehicle

By designing an electrical connection between the sealing strip substrate and the conductive coating at the vehicle door seam, the problem of electromagnetic leakage in vehicles is solved, achieving good electromagnetic shielding, rainproofing, sound insulation, and shock absorption effects.

CN223574186UActive Publication Date: 2025-11-21BEIJING ZHONGSHI ZHENGQI TECH CO LTD +1
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Patent Information

Application Number
CN202423289968.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-11-21
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Electromagnetic leakage exists in the gaps between vehicle doors, causing reduced functionality and performance of electronic devices or causing them to malfunction.

Method used

A special sealing strip for electromagnetic protection of vehicles has been designed, including a sealing strip base, an adhesive backing layer and a conductive coating. The sealing strip base surrounds the car door and forms an electrical connection with the car door and the car body frame through the conductive coating, thereby preventing electromagnetic wave leakage.

Benefits of technology

It effectively prevents electromagnetic waves from entering the vehicle body through the door seams, improving the electromagnetic shielding effect. It also has rainproof, sound insulation and shock absorption functions, and is easy to install and low in cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a special sealing strip for electromagnetic protection of a vehicle and the vehicle, relates to the technical field of sealing parts, and solves the technical problem of electromagnetic leakage at a seam of a vehicle door in the prior art. The device comprises a sealing strip base body, a back adhesive layer and a conductive coating, the back adhesive layer is arranged on the bottom side face of the sealing strip base body, the remaining side faces of the sealing strip base body are all coated with the conductive coating, the back adhesive layer is pasted to the edge end of a vehicle door, and the sealing strip base body surrounds the vehicle door by a circle.
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Description

Technical Field

[0001] This utility model relates to the field of sealing parts technology, and in particular to a special sealing strip for electromagnetic protection of vehicles and a vehicle. Background Technology

[0002] In recent years, with the rapid development of electronics, information, and communication technologies, electronic equipment has been widely used, especially in field equipment such as communication vehicles, command vehicles, and monitoring vehicles, which are equipped with a large number of electronic devices. Due to the complex electromagnetic environment in which vehicles operate under special working conditions, electromagnetic leakage can occur at the seams of vehicle doors, potentially leading to a reduction or complete failure of the functionality and performance of some or all of the electronic equipment installed in the vehicle. Utility Model Content

[0003] The purpose of this utility model is to provide a special sealing strip for electromagnetic protection of vehicles and a vehicle in general, so as to solve the technical problem of electromagnetic leakage at the seams of car doors in the prior art. The various technical effects of the preferred technical solutions provided by this utility model are described in detail below.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This utility model provides a special sealing strip for electromagnetic protection of vehicles, including a sealing strip base, an adhesive backing layer and a conductive coating. The adhesive backing layer is provided on the bottom side of the sealing strip base, and the conductive coating is applied to the remaining side of the sealing strip base. The adhesive backing layer is adhered to the edge of the car door, and the sealing strip base surrounds the car door.

[0006] Optionally, the sealing strip substrate has at least one hollow cavity inside.

[0007] Optionally, at least one set of exhaust groups is provided on the top side of the sealing strip substrate, the number of exhaust groups being consistent with the number of hollow cavities, and the exhaust groups being connected to the hollow cavities.

[0008] Optionally, the exhaust assembly includes multiple exhaust holes, all of which are arranged along the length of the sealing strip base, and all of which are connected to the corresponding hollow cavity.

[0009] Optionally, the top corners of the sealing strip substrate are rounded.

[0010] Optionally, the conductive coating may be made of a single conductive metal or a mixture of conductive metals.

[0011] Optionally, the left and right sides of the sealing strip substrate are provided with flow retention grooves, which are close to the bottom side of the sealing strip substrate.

[0012] Optionally, the adhesive backing layer is provided with an easy-tear strip.

[0013] This utility model provides a vehicle, including a door, a door frame, and a special sealing strip for vehicle electromagnetic protection. The door has a slot on its edge, and the special sealing strip for vehicle electromagnetic protection is located in the slot and adhered to the slot. The door frame has a conductive protrusion on its edge, which can contact and press against the top side of the special sealing strip for vehicle electromagnetic protection.

[0014] This utility model provides a special sealing strip for electromagnetic protection of vehicles. The sealing strip base is bonded to the edge of the car door through an adhesive layer and surrounds the car door. When the car door is closed, the sealing strip base seals the joint between the car door and the car body frame. The side of the sealing strip base is coated with a conductive coating, which comes into contact with the car door and the car body frame. This allows the car door and the car body frame to form a good electrical connection through the conductive coating, thereby effectively preventing electromagnetic waves from entering the car body from the joint of the car door, thus playing a shielding role and solving the technical problem of electromagnetic leakage at the joint of the car door in the prior art. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a partial structural diagram of the vehicle provided in an embodiment of the present utility model;

[0017] Figure 2 This is a cross-sectional view of a special sealing strip for electromagnetic protection of vehicles provided in an embodiment of this utility model;

[0018] Figure 3 This is a partial top view of a special sealing strip for electromagnetic protection of vehicles provided in an embodiment of this utility model.

[0019] In the diagram: 1. Sealing strip base; 11. Hollow cavity; 12. Exhaust hole; 13. Flow stabilization groove;

[0020] 2. Adhesive backing layer;

[0021] 3. Conductive coating;

[0022] 4. Car door; 41. Card slot;

[0023] 5. Vehicle body door frame; 51. Conductive protrusion. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] This utility model provides a special sealing strip for electromagnetic protection of vehicles, including a sealing strip base 1, an adhesive backing layer 2, and a conductive coating 3. The adhesive backing layer 2 is provided on the bottom side of the sealing strip base 1, and the conductive coating 3 is coated on the remaining side of the sealing strip base 1. The adhesive backing layer 2 is pasted to the edge of the car door 4 and the sealing strip base 1 surrounds the car door 4. This utility model provides a special sealing strip for electromagnetic protection of vehicles. The sealing strip base 1 is bonded to the edge of the car door 4 through the adhesive layer 2 and surrounds the car door 4. When the car door 4 is closed, the sealing strip base 1 will seal the joint between the car door 4 and the car body frame 5. The side of the sealing strip base 1 is coated with a conductive coating 3, and the conductive coating 3 will contact the car door 4 and the car body frame 5, so that the car door 4 and the car body frame 5 form a good electrical connection through the conductive coating 3. This can effectively prevent electromagnetic waves from entering the car body from the joint of the car door 4, thus playing a shielding role and solving the technical problem of electromagnetic leakage at the joint of the car door in the prior art.

[0028] As an optional implementation, the sealing strip base 1 has at least one hollow cavity 11 inside. The cross-sectional shape of the hollow cavity 11 can be rectangular, which can effectively reduce the hardness of the vehicle electromagnetic protection sealing strip, improve resilience, play a good rainproof sealing role, and reduce the resistance when closing the door.

[0029] As an optional implementation, at least one set of exhaust groups is provided on the top side of the sealing strip base 1, the number of exhaust groups being consistent with the number of hollow cavities 11, and the exhaust groups being connected to the hollow cavities 11.

[0030] As an optional implementation, the exhaust assembly includes a plurality of exhaust holes 12, all of which are arranged along the length of the sealing strip base 1 and are connected to a corresponding hollow cavity 11. When the sealing strip base 1 is compressed, the gas inside the hollow cavity 11 is discharged from the exhaust holes 12, thereby reducing the resistance to closing the door.

[0031] As an optional implementation, the top corner of the sealing strip base 1 is set to a rounded corner structure, which can improve the durability of the sealing strip base 1.

[0032] As an optional implementation, the conductive coating 3 is made of a single conductive metal or a mixture of conductive metals. The top, left, and right sides of the sealing strip substrate 1 are all provided with the conductive coating 3. The conductive coating 3 is made of common conductive metal materials such as aluminum, silver, nickel, and copper, or a mixture of metal materials. The metal material is adhered to the sealing strip substrate 1 through a vulcanization process. The conductive coating 3 formed by the vulcanization process has a uniform texture, strong adhesion, and low manufacturing cost.

[0033] As an optional implementation, both the left and right sides of the sealing strip substrate 1 are provided with flow retention grooves 13. The length of the flow retention grooves 13 is the same as the length of the sealing strip substrate 1, and the flow retention grooves 13 are close to the bottom side of the sealing strip substrate 1. During the vulcanization process, the flow retention grooves 13 can prevent the conductive slurry from diffusing to the bottom side of the sealing strip substrate 1, thereby improving the uniformity and adhesion of the conductive coating 3 and reducing the waste of conductive material.

[0034] As an optional implementation, the adhesive backing layer 2 is provided with an easy-tear strip. By tearing off the easy-tear strip, the adhesive backing layer 2 can be adhered to the edge of the car door 4. The easy-tear strip is used to protect the adhesive surface of the adhesive backing layer 2 from dust and other contaminants, thus protecting the adhesive performance of the adhesive backing layer 2.

[0035] This utility model provides a vehicle, including a door 4, a door frame 5, and a special sealing strip for vehicle electromagnetic protection. A groove 41 is provided on the edge of the door 4, and the special sealing strip for vehicle electromagnetic protection is located in and adhered to the groove 41. The groove 41 is used to limit the lateral displacement of the special sealing strip. Conductive protrusions 51 are provided on the edge of the door frame 5. The conductive protrusions 51 can contact and compress the top side of the special sealing strip for vehicle electromagnetic protection. The number of conductive protrusions 51 is the same as the number of hollow cavities 11, and there are two conductive protrusions 51. When the door is closed, the conductive protrusions 51 press against the corresponding top side of the hollow cavity 11, thereby compressing and deforming the special sealing strip for vehicle electromagnetic protection, and changing the shape of the hollow cavity 11. At the same time, the gas in the hollow cavity 11 is discharged from the exhaust port 12. The conductive protrusions 51 also serve to better contact the conductive coating 3. Vehicles operating in complex electromagnetic environments can significantly improve their electromagnetic shielding effect by installing special electromagnetic protection sealing strips. These strips also provide rain protection, sound insulation, and vibration damping. The special electromagnetic protection sealing strips are characterized by simple installation, reliable performance, and low cost.

[0036] The above description is merely a specific 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 protection scope of the claims.

Claims

1. A special sealing strip for electromagnetic protection of vehicles, characterized in that, It includes a sealing strip substrate (1), an adhesive backing layer (2), and a conductive coating (3), wherein, The bottom side of the sealing strip substrate (1) is provided with the adhesive layer (2), and the remaining sides of the sealing strip substrate (1) are coated with the conductive coating (3). The adhesive layer (2) is pasted to the edge of the car door (4), and the sealing strip substrate (1) surrounds the car door (4) for a period of time.

2. The vehicle electromagnetic protection sealing strip according to claim 1, characterized in that, The sealing strip substrate (1) has at least one hollow cavity (11) inside.

3. The vehicle electromagnetic protection sealing strip according to claim 2, characterized in that, At least one set of exhaust groups is provided on the top side of the sealing strip base (1), the number of exhaust groups is consistent with the number of hollow cavities (11), and the exhaust groups are connected to the hollow cavities (11).

4. A special sealing strip for vehicle electromagnetic protection according to claim 3, characterized in that, The exhaust assembly includes multiple exhaust holes (12), all of which are arranged along the length of the sealing strip base (1), and all of which are connected to the corresponding hollow cavity (11).

5. A special sealing strip for vehicle electromagnetic protection according to claim 1, characterized in that, The top corner of the sealing strip base (1) is set as a rounded corner structure.

6. A special sealing strip for vehicle electromagnetic protection according to claim 1, characterized in that, The conductive coating (3) is made of a single conductive metal or a mixture of conductive metals.

7. A special sealing strip for vehicle electromagnetic protection according to claim 1, characterized in that, The sealing strip base (1) is provided with a flow retention groove (13) on both the left and right sides, and the flow retention groove (13) is close to the bottom side of the sealing strip base (1).

8. A special sealing strip for vehicle electromagnetic protection according to claim 1, characterized in that, The adhesive backing layer (2) is provided with an easy-tear strip.

9. A vehicle, characterized in that, The vehicle includes a door (4), a door frame (5), and a special sealing strip for electromagnetic protection of vehicles as described in any one of claims 1-8. A slot (41) is provided on the edge of the door (4), and the special sealing strip for electromagnetic protection of vehicles is located in the slot (41) and adhered to the slot (41). A conductive protrusion (51) is provided on the edge of the door frame (5), and the conductive protrusion (51) can contact and press against the top side of the special sealing strip for electromagnetic protection of vehicles.