Temperature sensor for internal interlayer of multi-layer glass
By embedding different metal wires in the inner interlayer of multi-layered glass to measure temperature through thermoelectric effects, the problems of poor contact and space occupation of traditional sensors are solved, and the accuracy of temperature measurement and structural stability are achieved.
Patent Information
- Application Number
- CN202522151896.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-11
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-10-11
AI Technical Summary
Traditional automotive glass temperature sensors occupy a large space and are prone to poor contact, leading to large measurement errors.
Different metal wires are embedded in a sandwich of two insulating films. The temperature is measured by utilizing the thermoelectric effect of the metal wires. The wires are kept in close contact to reduce measurement errors and space occupation.
It achieves accurate temperature measurement and structural stability, while reducing the contact problems and space occupation of traditional sensors.
Smart Images
Figure CN223581207U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of glass temperature sensors, and in particular to a temperature sensor for a multi-layer glass internal interlayer. BACKGROUND
[0002] At present, the temperature sensor of the automobile glass is mainly used for providing the environmental temperature data for the automatic air conditioning system, the automatic headlight system (detecting the environmental temperature and humidity, and assisting in judging whether to fog) and the rain sensor (often integrated with the temperature sensor) of the vehicle. The traditional automobile glass sensor is mainly attached to the surface of the glass to measure the temperature, and has the problems of large occupied space and large temperature measurement error caused by poor contact. CONTENT OF THE UTILITY MODEL
[0003] The present application provides a temperature sensor for a multi-layer glass internal interlayer, which has a stable structure, reduces the occupied space, and solves the problem of large temperature measurement error caused by poor contact of the traditional temperature sensor.
[0004] The temperature sensor for a multi-layer glass internal interlayer provided by the present application adopts the following technical scheme:
[0005] A temperature sensor for a multi-layer glass internal interlayer comprises two layers of insulating films attached and compressed to each other, a first metal wire and a second metal wire are fixed and compressed between the two layers of insulating films, the first metal wire and the second metal wire are made of different metal materials, the wiring ends of the first metal wire and the second metal wire are stretched out to the outside of the insulating film, and the wiring ends of the first metal wire and the second metal wire are arranged in a forked manner.
[0006] Preferably, the total thickness of the two layers of insulating films is less than or equal to 0.4 mm.
[0007] Preferably, the first metal wire and the second metal wire are twisted and form a flattened end, and the flattened end is arranged between the two layers of insulating films.
[0008] Preferably, the insulating film is made of one of polyimide material and PET material.
[0009] Preferably, the material of the first metal wire is copper, and the material of the second metal wire is constantan.
[0010] In summary, the present application has at least one of the following beneficial technical effects:
[0011] Since the metal materials of the first metal conductor and the second metal conductor are different, when there is a temperature difference between the connecting point of the first metal conductor and the second metal conductor and the terminal, a thermoelectric potential will be generated in the circuit, and at this time, the generated potential is measured by the external measuring instrument, so that the temperature of the measuring end in the insulating film can be calculated.
[0012] By arranging the insulating film between the laminated glass, the first metal conductor and the second metal conductor can be closely attached between the laminated glass, ensuring the accuracy of temperature measurement, reducing measurement error, and reducing the occupied space. The structure is more stable and reliable, and solves the problem of poor surface contact of the traditional sensor. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;
[0014] Figure 2 is a schematic diagram of the front structure of Figure 1 .
[0015] Reference signs: 1, insulating film; 2, first metal conductor; 23, flattened end; 3, second metal conductor. DETAILED DESCRIPTION
[0016] The present application will be further described in detail below with reference to the accompanying drawings.
[0017] The embodiment of the present application discloses a temperature sensor for internal interlayer of multi-layer glass.
[0018] Referring to Figure 1 , Figure 2 , the temperature sensor for internal interlayer of multi-layer glass comprises two layers of insulating films 1 which are attached and tightly fixed to each other, and the first metal conductor 2 and the second metal conductor 3 which are tightly fixed between the two layers of insulating films 1 and are wound around each other.
[0019] As shown in Figure 1 , Figure 2 , the first metal conductor 2 and the second metal conductor 3 are made of different metal materials. In one embodiment, the first metal conductor 2 can be made of copper alloy, and the second metal conductor 3 can be made of nickel alloy. In another embodiment, the first metal conductor 2 can be made of copper, and the second metal conductor 3 can be made of constantan. In other embodiments, the first metal conductor 2 and the second metal conductor 3 can be made of two different nickel alloys respectively. Among them, the combination of the first metal conductor 2 made of copper and the second metal conductor 3 made of constantan is better. The insulating film 1 is made of one of polyimide material or PET material.
[0020] As shown in Figure 1 , Figure 2As shown, the terminal ends of the first metal wire 2 and the second metal wire 3 extend outside the insulating film 1, and the terminal ends of the first metal wire 2 and the second metal wire 3 are bifurcated. Since the metal materials of the first metal wire 2 and the second metal wire 3 are different, when there is a temperature difference between the connecting point and the terminal end of the first metal wire 2 and the second metal wire 3, a thermoelectric potential will be generated in the circuit. The generated potential is measured by an external measuring instrument, and the temperature of the measuring end located in the insulating film 1 can be calculated. The terminal ends of the first metal wire 2 and the second metal wire 3 are bifurcated, which facilitates subsequent wiring with the measuring instrument.
[0021] As shown in Figure 1 , Figure 2 , the first metal wire 2 and the second metal wire 3 that are intertwined are provided with flattened ends 23, which are flattened and arranged between the two layers of insulating films 1, so as to further reduce the overall thickness, and the total thickness of the two layers of insulating films 1 is ≤0.4mm. By arranging the insulating film 1 between the laminated glass, the first metal wire 2 and the second metal wire 3 can be closely attached between the laminated glass, ensuring the accuracy of temperature measurement, reducing measurement error, and also reducing the occupied space, and the structure is more stable and reliable, solving the problem of poor surface contact of the traditional sensor.
[0022] The implementation principle is: since the metal materials of the first metal wire 2 and the second metal wire 3 are different, when there is a temperature difference between the connecting point and the terminal end of the first metal wire 2 and the second metal wire 3, a thermoelectric potential will be generated in the circuit. At this time, the generated potential is measured by an external measuring instrument, and the temperature of the measuring end located in the insulating film 1 can be calculated. The terminal ends of the first metal wire 2 and the second metal wire 3 are bifurcated, which facilitates subsequent wiring with the measuring instrument. By arranging the insulating film 1 between the laminated glass, the first metal wire 2 and the second metal wire 3 can be closely attached between the laminated glass, ensuring the accuracy of temperature measurement, reducing measurement error, and also reducing the occupied space, and the structure is more stable and reliable, solving the problem of poor surface contact of the traditional sensor.
[0023] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made on the basis of the structure, shape, principle of the present application should be covered within the protection scope of the present application.
Claims
1. A temperature sensor for use in the internal interlayer of multilayer glass, characterized in that: It includes two layers of insulating film (1) that are pressed together. A first metal wire (2) and a second metal wire (3) are pressed and fixed between the two layers of insulating film (1). The first metal wire (2) and the second metal wire (3) are made of different metal materials. The terminals of the first metal wire (2) and the second metal wire (3) extend to the outside of the insulating film (1). The terminals of the first metal wire (2) and the second metal wire (3) are bifurcated.
2. The temperature sensor for the internal interlayer of multilayer glass according to claim 1, characterized in that: The total thickness of the two insulating films (1) is ≤0.4mm.
3. The temperature sensor for the internal interlayer of multilayer glass according to claim 1, characterized in that: The first metal wire (2) and the second metal wire (3) that are intertwined form a flattened end (23), which is flattened and disposed between two insulating films (1).
4. The temperature sensor for the internal interlayer of multilayer glass according to claim 1, characterized in that: The insulating film (1) is either a polyimide material or a PET material.
5. The temperature sensor for the internal interlayer of multilayer glass according to claim 1, characterized in that: The first metal wire (2) is made of copper, and the second metal wire (3) is made of constantan.