Flexible film temperature sensor

Abstract

The utility model relates to the technical field of temperature sensors, in particular to a flexible film temperature sensor. The device comprises a thin film assembly, a thermocouple is fixedly communicated in the thin film assembly, positive and negative end portions of the thermocouple penetrate out of the same end portion of the thin film assembly, and the top and bottom of the thin film assembly are fixedly connected with protection assemblies. A folding assembly is movably connected between the end portions of the ends, penetrating out of the thin film assembly, of the two protection assemblies, and a fixing assembly is movably communicated between the end portions of the other ends, penetrating out of the thin film assembly, of the two protection assemblies. The thermocouple is fixed through the thin film assembly, the thermocouple can conveniently detect temperatures of different environments, the two protection assemblies are driven to rotate through the folding assembly, the thin film assembly and the thermocouple are clamped between the two protection assemblies, the position between the two protection assemblies is fixed by adjusting the fixing assembly, and therefore the thermocouple can be conveniently detected. The thin film assembly is protected and prevented from being interfered by the external environment.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature sensors, and more specifically to a flexible film temperature sensor. Background Art

[0002] Flexible thin film temperature sensors use thin film materials that change in size when the temperature changes, which in turn causes a change in resistance. The sensor uses this change in resistance to measure temperature. Thin film materials are usually made of metal or semiconductor materials, such as platinum, nickel, iron, copper, etc. These materials have good thermal sensitivity and stability.

[0003] The biggest feature of the flexible film temperature sensor is its flexibility and bendability. This makes it particularly suitable for thermal environment monitoring of tiny devices with small spaces and large curvatures. For example, in the fields of rechargeable batteries, micro-satellites, medical devices, etc., flexible film temperature sensors can easily cope with complex installation environments and space constraints, providing an effective solution for temperature monitoring of these devices. Secondly, the flexible film temperature sensor also has the advantages of high sensitivity, fast response speed and simple structure. Due to the characteristics of its thermosensitive material, it can very sensitively sense the temperature changes on the surface of an object, and due to the small size of the film, the response speed is very fast. At the same time, this sensor has a simple structure, is easy to produce and maintain, and reduces the cost of use.

[0004] At present, when most of the existing flexible thin film temperature sensors are used in scenarios that require high-precision measurement, their measurement accuracy may be affected by the material. At the same time, their measurement process is also easily affected by the surrounding environment, causing interference to the measurement structure. It is not convenient to place the sensor in a closed environment to isolate interference from the external environment.

[0005] In view of this, the utility model provides a flexible thin film temperature sensor. Utility Model Content

[0006] The utility model provides a flexible thin film temperature sensor, which includes a thin film component, wherein a thermocouple is fixedly connected inside the thin film component, and the positive and negative ends of the thermocouple are both passed through the same end of the thin film component, and the top and bottom of the thin film component are fixedly connected with a protective component;

[0007] A folding component is movably connected between one end of the two protective components passing through the film component, and a fixing component is movably connected between the other end of the two protective components passing through the film component.

[0008] As a further improvement of the present technical solution, the film assembly includes a polyvinyl chloride film layer, a thermocouple is fixedly connected between the two polyvinyl chloride film layers, a polyimide film layer is fixedly connected at the top and bottom between the two polyvinyl chloride film layers, and the outer walls of the two polyimide film layers are movably connected with a protective assembly, and the film assembly is used to meet the needs of sensors in different fields.

[0009] As a further improvement of the present technical solution, the protective component includes a bellows, and the two bellows are movably connected to the outer walls of the two polyimide film layers respectively. One end of the bellows is fixedly connected to a support block, and the other end of the bellows is fixedly connected to a support plate. The two support blocks are clamped on the outer wall of the thermocouple, and the two support blocks are movably connected to a fixed component near both ends, and the two support plates are movably connected to a folding component, and the protective component is used to protect the sensor.

[0010] As a further improvement of the present technical solution, the folding assembly includes a middle plate, which is movably connected between two support plates. Hinges are fixedly connected between the middle plate and the outer walls of the two support plates. The folding assembly is used to drive the two bellows to be clamped on the film assembly.

[0011] As a further improvement of the present technical solution, the fixing assembly includes a support rod, which is movably connected between the two support blocks near both ends. The support rod passes through the outer walls of the two support blocks and is movably connected with a nut. The fixing assembly is used to fix the position between the two bellows.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The thermocouple is fixed by the film component, which makes it convenient for the thermocouple to detect the temperature of different environments. The two protective components are driven to rotate by the folding component, so that the film component and the thermocouple are clamped between the two protective components. The position between the two protective components is fixed by adjusting the fixing component to protect the film component from being disturbed by the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is described in more detail below by way of example with reference to the accompanying drawings, in which:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the sensor structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the protection structure of the utility model.

[0019] The meanings of the numbers in the figure are as follows: 1. thermocouple; 11. film assembly; 110. polyimide film layer; 111. polyvinyl chloride film layer; 12. protective assembly; 120. bellows; 121. support block; 122. support plate; 13. folding assembly; 130. middle plate; 131. hinge; 14. fixing assembly; 140. support rod; 141. nut. DETAILED DESCRIPTION

[0020] like Figure 1-4 As shown, the device includes a thin film component 11, and a thermocouple 1 is fixedly connected inside the thin film component 11, and the positive and negative ends of the thermocouple 1 are both passed through the same end of the thin film component 11, and the top and bottom of the thin film component 11 are fixedly connected to a protective component 12;

[0021] A folding component 13 is movably connected between one end of the two protective components 12 passing through the film component 11, and a fixing component 14 is movably connected between the other end of the two protective components 12 passing through the film component 11;

[0022] First, the specific structure of the film component 11 is disclosed. The film component 11 includes a polyvinyl chloride film layer 111. A thermocouple 1 is fixedly connected between two polyvinyl chloride film layers 111. A polyimide film layer 110 is fixedly connected at the top and bottom between the two polyvinyl chloride film layers 111. The outer walls of the two polyimide film layers 110 are movably connected with a protective component 12. The film component 11 is used to meet the needs of sensors in different fields. The thermocouple 1 is clamped and fixed by the two polyvinyl chloride film layers 111. At the same time, the polyvinyl chloride film layer 111 has excellent tensile strength and toughness, as well as good durability and light transmittance, and the polyimide film layer 110 has high temperature resistance. The polyvinyl chloride film layer 111 is protected by the two polyimide film layers 110, so that it is convenient to use in a high temperature environment.

[0023] According to the above disclosure of the specific structure of the protection component 12, the protection component 12 includes a bellows 120, two bellows 120 are movably connected to the outer walls of the two polyimide film layers 110, one end of the bellows 120 is fixedly connected to a support block 121, and the other end of the bellows 120 is fixedly connected to a support plate 122, the two support blocks 121 are clamped on the outer wall of the thermocouple 1, and the two support blocks 121 are movably connected to the fixing component 14 near both ends, and the two support plates 122 are movably connected to the folding component 13, and the protection component 12 is used to protect the sensor, and the distance between the support plate 122 and the support block 121 is stretched, thereby stretching the bellows 120, and stretching the length of the bellows 120 to be consistent with the film component 11, and the film component 11 is protected by the two bellows 120, and when the film component 11 is folded and bent, the bellows 120 can bend accordingly, so as to facilitate the flexible use of the sensor;

[0024] According to the above disclosure of the specific structure of the folding assembly 13, the folding assembly 13 includes a middle plate 130, which is movably connected between the two support plates 122, and a hinge 131 is fixedly connected between the middle plate 130 and the outer walls of the two support plates 122. The folding assembly 13 is used to drive the two bellows 120 to be clamped on the film assembly 11, and the hinge 131 is driven to rotate by pulling the support plate 122, so that the support plate 122 is folded at the outer wall of the middle plate 130, which is convenient for opening and closing the two bellows 120, thereby facilitating the fixing of the sensor between the two bellows 120;

[0025] According to the above disclosure of the specific structure of the fixing component 14, the fixing component 14 includes a support rod 140, and the support rod 140 is movably connected between the two support blocks 121 near both ends. The support rod 140 passes through the outer walls of the two support blocks 121 and is movably connected with a nut 141. The fixing component 14 is used to fix the position between the two bellows 120, by inserting the support rod 140 between the two support blocks 121, and by tightening the nut 141 on the outer wall of the support rod 140 passing through the two ends of the support block 121, thereby fixing the position between the support rod 140 and the support block 121, and connecting and fixing the two support blocks 121, thereby fixing the protective position of the two bellows 120.

[0026] The improvement of this embodiment is that the thermocouple 1 is clamped and fixed by two polyvinyl chloride film layers 111. At the same time, the polyvinyl chloride film layer 111 has excellent tensile strength and toughness, as well as good durability and light transmittance, and the polyimide film layer 110 has high temperature resistance. The polyvinyl chloride film layer 111 is protected by two polyimide film layers 110, which is convenient for use in high temperature environments. The support plate 122 is pulled to drive the hinge 131 to rotate, so that the support plate 122 is folded at the outer wall of the middle plate 130, which is convenient for opening and closing the two bellows 120, so that the sensor is conveniently fixed between the two bellows 120. By inserting the support rod 140 Inserted between the two support blocks 121, the position between the support rod 140 and the support block 121 is fixed by tightening the nut 141 on the outer wall of the support rod 140 passing through the two ends of the support block 121, and the two support blocks 121 are connected and fixed, so as to fix the protection position of the two bellows 120, and the distance between the support plate 122 and the support block 121 is stretched, so as to stretch the bellows 120, and stretch the length of the bellows 120 to be consistent with the film assembly 11, and the film assembly 11 is protected by the two bellows 120, and when the film assembly 11 is folded and bent, the bellows 120 can be bent accordingly, so as to facilitate the flexible use of the sensor;

[0027] In summary, the working principle of this solution is as follows:

[0028] The thermocouple 1 is fixed by the film component 11, so that the thermocouple 1 can detect the temperature of different environments. The film component 11 clamps and fixes the thermocouple 1 by two polyvinyl chloride film layers 111. At the same time, the polyvinyl chloride film layer 111 has excellent tensile strength and toughness, as well as good durability and light transmittance, and the polyimide film layer 110 has high temperature resistance. The polyvinyl chloride film layer 111 is protected by the two polyimide film layers 110, so that it is convenient to use it in a high temperature environment. The two protective components 12 are driven to rotate by the folding component 13, so that the film component 11 and the thermocouple 1 are clamped between the two protective components 12. The folding component 13 drives the hinge 131 to rotate by pulling the support plate 122, so that the support plate 122 is folded at the outer wall of the middle plate 130, which is convenient for opening and closing the two bellows 120, so as to facilitate fixing the sensor between the two bellows 120. The position between the two protection components 12 is fixed by adjusting the fixing component 14, so as to protect the film component 11 from being disturbed by the external environment, wherein the fixing component 14 inserts the support rod 140 between the two support blocks 121, and tightens the nut 141 on the outer wall of the support rod 140 passing through the two ends of the support block 121, thereby fixing the position between the support rod 140 and the support block 121, and connecting and fixing the two support blocks 121, so as to fix the protection position of the two bellows 120, wherein the protection component 12 stretches the distance between the support plate 122 and the support block 121, thereby stretching the bellows 120, stretching the length of the bellows 120 to be consistent with the film component 11, and protecting the film component 11 by the two bellows 120, and at the same time, when the film component 11 is folded and bent, the bellows 120 can bend accordingly, so as to facilitate the flexible use of the sensor.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A flexible thin film temperature sensor, comprising a thin film assembly (11), characterized in that: The film assembly (11) is fixedly connected to a thermocouple (1) inside, the positive and negative terminals of the thermocouple (1) are both inserted through the same end of the film assembly (11), and the top and bottom of the film assembly (11) are fixedly connected to a protective assembly (12); A folding component (13) is movably connected between one end of the two protective components (12) passing through the film component (11), and a fixing component (14) is movably connected between the other end of the two protective components (12) passing through the film component (11).

2. The flexible thin film temperature sensor according to claim 1, characterized in that: The film assembly (11) comprises a polyvinyl chloride film layer (111), a thermocouple (1) is fixedly connected between two polyvinyl chloride film layers (111), a polyimide film layer (110) is fixedly connected at the top and bottom between the two polyvinyl chloride film layers (111), and a protective assembly (12) is movably connected to the outer walls of the two polyimide film layers (110), and the film assembly (11) is used to meet the needs of sensors in different fields.

3. The flexible thin film temperature sensor according to claim 1, characterized in that: The protective component (12) comprises a bellows (120), wherein the two bellows (120) are respectively movably connected to the outer walls of the two polyimide film layers (110), one end of the bellows (120) is fixedly connected to a support block (121), and the other end of the bellows (120) is fixedly connected to a support plate (122), the two support blocks (121) are clamped on the outer wall of the thermocouple (1), a fixing component (14) is movably connected between the two support blocks (121) near both ends, and a folding component (13) is movably connected between the two support plates (122), and the protective component (12) is used to protect the sensor.

4. The flexible thin film temperature sensor according to claim 3, characterized in that: The folding assembly (13) comprises a middle plate (130), the middle plate (130) is movably connected between the two support plates (122), and hinges (131) are fixedly connected between the middle plate (130) and the outer walls of the two support plates (122). The folding assembly (13) is used to drive the two bellows (120) to be clamped on the film assembly (11).

5. The flexible thin film temperature sensor according to claim 3, characterized in that: The fixing assembly (14) comprises a support rod (140), the support rod (140) being movably connected between the two support blocks (121) near both ends, the support rod (140) passing through the outer walls of the two support blocks (121) and being movably connected with a nut (141), and the fixing assembly (14) is used to fix the position between the two bellows (120).

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