Heating sealing strip and automobile

The heating sealing strip, made of conductive polymer, utilizes its self-limiting temperature properties to heat and defrost car windows and doors, solving the problem of inconvenient use of sealing strips in extremely cold conditions and achieving a fast and uniform de-icing effect.

CN223934522UActive Publication Date: 2026-02-24HENNIGES (CHINA) AUTOMOTIVE SEALING SYST CO LTD +3
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Patent Information

Application Number
CN202520664198.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-02-24
Estimated Expiration
2035-04-09

AI Technical Summary

Technical Problem

Existing automotive weatherstripping cannot effectively defrost side windows and doors in extremely cold conditions, causing inconvenience in use.

Method used

The heating sealing strip, made of conductive polymer, is heated by electricity. It utilizes the property that the resistance of the conductive polymer increases with temperature to achieve self-limiting heating, resulting in a significant de-icing effect.

Benefits of technology

It enables rapid defrosting of glass and car doors under extremely cold conditions, reduces costs, eliminates the need for temperature controllers and sensors, and provides uniform and constant heating.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of vehicle parts, and discloses a heating sealing strip and an automobile, the heating sealing strip is used on the automobile, and the heating sealing strip comprises a conductive polymer; the two wires are arranged in the conductive polymer at intervals; one ends of the two wires are suitable for being connected with a positive electrode and a negative electrode of a power supply; and the insulating layer is wrapped outside the conductive polymer. According to the application, the conductive polymer with the resistor is electrified, so that the heating sealing strip has a heating function, and unfreezing is realized by heating easy-to-freeze areas such as glass or a vehicle door, so that the deicing effect is achieved. And moreover, the heating sealing strip is self-heated in a power-on state, is uniform in heating, has a self-temperature-limiting function, can keep constant after being heated to a certain temperature, can realize constant-temperature heating without using a temperature controller and a temperature sensor, is convenient to use, and remarkably reduces the cost.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, specifically to a heating sealing strip and an automobile. Background Technology

[0002] Existing automotive sealing strip products are generally required to operate at a minimum temperature of -40℃. In extremely cold conditions, car side windows are easily frozen, making it difficult or even impossible to raise or lower them; car doors are also easily frozen, making them difficult to open. Current practices involve waiting for natural warming or using other heating methods to thaw the glass or doors, making it extremely inconvenient to use a car in extremely cold conditions. Utility Model Content

[0003] In view of this, the present invention provides a heating sealing strip to solve the problem that the existing methods for defrosting glass or car doors under extremely cold conditions are extremely inconvenient.

[0004] Firstly, this utility model provides a heating sealing strip for use in automobiles, the heating sealing strip comprising:

[0005] Conductive polymers;

[0006] Two wires are spaced apart within the conductive polymer; one end of each wire is adapted to be connected to the positive and negative terminals of a power source, respectively.

[0007] An insulating layer is wrapped around the outside of the conductive polymer. Beneficial effects: This application employs the above technical solution, which, by passing electricity through a conductive polymer with resistance, enables the heating sealing strip to have a heating function. By heating areas prone to icing, such as glass or car doors, it achieves defrosting, thereby achieving a de-icing effect. Furthermore, the heating sealing strip of this application is self-heating when energized, provides uniform heating, and has a self-limiting temperature function. After reaching a certain temperature, it remains constant, eliminating the need for a temperature controller and temperature sensor to achieve constant temperature heating, making it convenient to use and significantly reducing costs.

[0008] Optionally, the resistance of the conductive polymer increases with increasing temperature.

[0009] Optionally, the wire is a metal wire.

[0010] Optionally, the insulating layer is a rubber layer or an insulating coating.

[0011] Optionally, the conductive polymer, the two wires, and the insulating layer are integrally molded.

[0012] Secondly, this utility model also provides an automobile, including: the aforementioned heating sealing strip.

[0013] Optionally, it also includes:

[0014] The power source is connected to one end of the two wires;

[0015] A switch is disposed between the power source and the wires, and the switch is adapted to control whether to energize the two wires.

[0016] Optionally, the heating sealing strip is fixedly disposed on the outer waistline sealing strip along the length direction; or the heating sealing strip and the outer waistline sealing strip are integrally formed along the length direction.

[0017] Optionally, the outer waistline sealing strip is adapted to seal the side window glass.

[0018] Optionally, the heating sealing strip is disposed along the length of the door sealing strip, trunk sealing strip, frameless door top strip, door frame strip, or frameless door pillar strip. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram illustrating the principle of the heating sealing strip provided in the embodiments of this utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of the heating sealing strip provided in the embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram showing the connection between the heating sealing strip and the electronic control module provided in this embodiment of the utility model;

[0023] Figure 4 This is a cross-sectional structural diagram of the heating sealing strip fixed to the outer waistline sealing strip according to an embodiment of the present utility model.

[0024] Figure 5 This is a cross-sectional structural diagram of the integrated heating sealing strip and outer waistline sealing strip provided in this embodiment of the utility model.

[0025] Figure 6 This is a schematic diagram of the structure of the heating sealing strip provided in the embodiment of the present utility model, which is disposed on the door sealing strip;

[0026] Figure 7This is a schematic diagram of the structure of the heating sealing strip provided in the embodiment of the present utility model, which is disposed on the luggage sealing strip.

[0027] Figure 8 This is a schematic diagram of the structure of the heating sealing strip provided in the embodiment of the present utility model, which is disposed on the top strip and the door frame strip of the frameless car door.

[0028] Figure 9 This is a schematic diagram of the structure of the heating sealing strip provided in this embodiment of the invention, which is set on the frameless door pillar strip. Figure 1 ;

[0029] Figure 10 This is a schematic diagram of the structure of the heating sealing strip provided in this embodiment of the invention, which is set on the frameless door pillar strip. Figure 2 .

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Conductive polymer; 2. Wire; 3. Power supply; 4. Insulation layer; 5. Heating sealing strip; 6. Outer waistline sealing strip; 7. Side window glass; 8. Electrical control module. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] like Figures 1 to 2 One specific embodiment of the heating sealing strip shown includes: a conductive polymer 1, two wires 2, and an insulating layer 4. The heating of the heating sealing strip described in this application does not rely on electric heating wires or heating plates, but rather on the self-heating of the heating sealing strip when energized. The heating is uniform, and it has a self-limiting temperature function, maintaining a constant temperature after reaching a certain temperature. It achieves constant-temperature heating without the need for a temperature controller or temperature sensor. The heating sealing strip described in this application is used in automobiles. The resistance of the conductive polymer 1 in this application increases with increasing temperature.

[0034] like Figure 2 As shown, two wires 2 are spaced apart within the conductive polymer 1; the insulating layer 4 surrounds the outside of the conductive polymer 1. Figure 1 As shown, one end of each of the two wires 2 is adapted to be connected to the positive and negative terminals of the power supply 3, respectively. Figure 1 The arrows in the diagram indicate the direction of the current, and the curved line between the two wires 2 indicates heating.

[0035] Specifically, the conductor 2 is a metal conductor, more specifically, a nickel-plated copper conductor; the conductive polymer 1 and the nickel-plated copper conductor are manufactured by extrusion molding; after energization, the conductive polymer 1 between the two nickel-plated copper conductors acts as a resistor, forming a current, thereby achieving uniform heating. The heating sealing strip described in this application has a self-limiting temperature function, eliminating the need for temperature adjustment via a controller. Due to the material properties of the conductive polymer 1, when heated to a specific temperature, the resistance of the conductive polymer 1 increases, preventing further heating. The material properties of the conductive polymer 1 are: resistivity increases sharply with increasing temperature. When the temperature of the conductive polymer 1 reaches a certain level, it will break the circuit, achieving automatic temperature control without the need for thermocouples. Appropriate conductive polymer 1 materials can be selected according to the product's temperature requirements to achieve different temperature specifications. The conductive polymer 1 has excellent heat transfer performance.

[0036] The length of the heating sealing strip described in this application can be freely cut, and after cutting, only one end of the two wires 2 needs to be connected to electricity to generate heat normally. The other end of the two wires 2 does not need to be specially treated, and the two wires 2 do not need to be connected to form a circuit.

[0037] The insulating layer 4 is a rubber layer or an insulating coating.

[0038] Furthermore, the conductive polymer 1, the two wires 2, and the insulating layer 4 described in this application are integrally formed.

[0039] In an environment of 0 degrees Celsius, the heating temperature range of the heating sealing strip is 10 degrees Celsius to 70 degrees Celsius; in an environment of 0 degrees Celsius, the output power per meter of heating sealing strip ranges from 10 watts to 20 watts.

[0040] This application also provides an automobile, including: the aforementioned heating sealing strip 5.

[0041] The vehicle described in this application also includes: a power source 3 and a switch. For example... Figure 3 As shown, the power supply 3 and the switch together form the electronic control module 8.

[0042] refer to Figure 1 The power supply 3 is connected to one end of each of the two wires 2. A switch is positioned between the power supply 3 and the wires 2. This switch controls whether power is supplied to the two wires 2; no temperature sensor is required, only an on / off state setting is needed. The voltage of the power supply 3 is 12 volts or 24 volts.

[0043] like Figure 4As shown, in winter, the exterior of the side window glass 7 freezes due to snow or water accumulation at low temperatures. After freezing, the side window glass 7 may not be able to rise or fall normally or may have difficulty rising or falling. Therefore, the heating sealing strip 5 is fixedly installed on the outer waistline sealing strip 6 along the length direction, and the heating is turned on to defrost, thereby solving the problem of rising and falling of the side window glass 7.

[0044] Or, such as Figure 5 As shown, the heating sealing strip 5 and the outer waistline sealing strip 6 are integrally formed along their length. The outer waistline sealing strip 6 is suitable for sealing the side window glass 7.

[0045] like Figure 6 As shown, the heating sealing strip 5 is arranged along the length of the door sealing strip for de-icing the door; as Figure 7 As shown, the heating sealing strip 5 is arranged along the length of the luggage compartment sealing strip for de-icing the luggage compartment; as Figure 8 As shown, the heating sealing strip 5 is installed along the length of the frameless door top strip and door frame strip, and is used for de-icing the top of the frameless door side window glass. Figure 9 and Figure 10 As shown, the heating sealing strip 5 is arranged along the length direction on the frameless door pillar strip for de-icing the side of the frameless door side window glass.

[0046] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A heating sealing strip for use in automobiles, characterized in that, include: Conductive polymer (1); Two wires (2) are spaced apart within the conductive polymer (1); one end of each wire (2) is adapted to be connected to the positive and negative terminals of the power supply (3); An insulating layer (4) is wrapped around the outside of the conductive polymer (1).

2. The heating sealing strip according to claim 1, characterized in that, The conductor (2) is a metal conductor.

3. The heating sealing strip according to claim 1, characterized in that, The resistance of the conductive polymer (1) increases with increasing temperature.

4. The heating sealing strip according to claim 1, characterized in that, The insulating layer (4) is a rubber layer or an insulating coating.

5. The heating sealing strip according to claim 1, characterized in that, The conductive polymer (1), the two wires (2), and the insulating layer (4) are integrally formed.

6. A car, characterized in that, include: The heating sealing strip (5) according to any one of claims 1-5.

7. The automobile according to claim 6, characterized in that, Also includes: The power supply (3) is connected to one end of the two wires (2); A switch is provided between the power source (3) and the wires (2), and the switch is adapted to control whether to energize the two wires (2).

8. The automobile according to claim 6 or 7, characterized in that, The heating sealing strip (5) is fixedly installed on the outer waistline sealing strip (6) along the length direction; or the heating sealing strip (5) and the outer waistline sealing strip (6) are an integral structure along the length direction.

9. The automobile according to claim 8, characterized in that, The outer waistline sealing strip (6) is suitable for sealing the side window glass (7).

10. The automobile according to claim 6 or 7, characterized in that, The heating sealing strip (5) is installed along the length of the door sealing strip, trunk sealing strip, frameless door top strip, door frame strip, or frameless door pillar strip.