A precision temperature sensor

Abstract

The utility model relates to a kind of precision temperature sensors, comprising: shell, the shell is equipped with connection high temperature line, one end of connection high temperature line is inserted into shell interior;The shell is equipped with measurement chip, and the measurement chip is connected with connection high temperature line;The shell is injected with the acid and alkali resistant filling material from the end where measurement chip is equipped with;The end of the measurement chip and shell has buffer space, the acid and alkali resistant filling material is filled in buffer space, and the measurement chip is sealed in shell. By implementing the above technical scheme, the following technical effects are achieved: the precision temperature sensor provided by the utility model realizes small size, and has corrosion resistance, high temperature wire resistance and other functions.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to a precision temperature sensor. Background Technology

[0002] Existing temperature sensors often struggle to simultaneously achieve optimal performance in terms of corrosion resistance, miniaturization, and high-temperature resistance. In some chemical environments, corrosive substances such as acids and alkalis are present, easily corroding and damaging ordinary sensors, leading to inaccurate measurements or shortened sensor lifespan. Simultaneously, with the trend towards miniaturization in modern equipment, the demand for small-sized temperature sensors that can be installed in confined spaces is increasing. Furthermore, in high-temperature environments, the high-temperature resistance of the sensor's wiring and overall design is also crucial. Utility Model Content

[0003] This invention provides a precision temperature sensor that solves the problems of existing temperature sensors being susceptible to acid and alkali corrosion and having inaccurate measurements.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A precision temperature sensor includes: a housing, wherein a high-temperature wire is provided on the housing, and one end of the high-temperature wire extends into the interior of the housing;

[0006] The housing contains a measuring chip, which is connected to a high-temperature wire.

[0007] An acid and alkali resistant filling material is injected into the housing from the end where the measuring chip is located.

[0008] The measuring chip and the housing have a buffer space at their ends, which is filled with the acid and alkali resistant filling material to seal the measuring chip inside the housing.

[0009] Preferably, the shell is made of metal and its overall size does not exceed 2.0mm*12mm.

[0010] Preferably, the housing is made of an acid and alkali resistant insulating material.

[0011] Preferably, the high-temperature connecting wire is made of Teflon.

[0012] By implementing the above technical solutions, the following technical effects are achieved: The precision temperature sensor provided by this utility model achieves a small size while also taking into account multiple functions such as corrosion resistance and high-temperature resistant wires. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a precision temperature sensor provided by this utility model. Detailed Implementation

[0014] To better understand the technical solution of this utility model, the embodiments provided by this utility model are described in detail below with reference to the accompanying drawings.

[0015] like Figure 1 As shown, this embodiment provides a precision temperature sensor comprising: a housing 1, wherein a high-temperature connecting wire 2 is provided on the housing 1, one end of the high-temperature connecting wire 2 extending into the interior of the housing 1; a measuring chip 3 is provided inside the housing 1, the measuring chip 3 being connected to the high-temperature connecting wire 2; an acid and alkali resistant filling material 4 is injected into the housing 1 from the end where the measuring chip 3 is located; a buffer space is provided between the measuring chip 3 and the end of the housing 1, the buffer space being filled with the acid and alkali resistant filling material 4, thereby sealing the measuring chip 3 inside the housing 1.

[0016] In this embodiment, the temperature sensor is a two-wire sensor. The sensor internally employs a miniature measuring chip 3, which accurately senses temperature changes and converts them into a measurable resistance signal. The chip is designed using advanced semiconductor technology, ensuring high accuracy in temperature measurement. The measuring chip 3 is connected to a high-temperature connection wire 2, transmitting the temperature data measured by the measuring chip 3 to the high-temperature connection wire 2. Notably, in this embodiment, an acid- and alkali-resistant filling material 4 is injected into the front end of the sensor (the end with the measuring chip 3). This material effectively protects the sensor's critical components, such as the measuring chip 3 and the high-temperature connection wire 2, when the sensor comes into contact with corrosive substances like acids and alkalis, significantly improving the sensor's lifespan and measurement stability in corrosive environments.

[0017] In this embodiment, an acid- and alkali-resistant filler material 4 is injected into the front end. During injection, a distance is maintained between the temperature-sensing end resistor and the bottom of the housing 1. The temperature probe hardware is encapsulated with the acid- and alkali-resistant filler material 4 to ensure a tight seal within the sensor housing 1. This differs from traditional overall wrapping or coating methods. This injection method provides more precise protection for the sensor's core components, ensuring acid and alkali resistance while also guaranteeing the product's airtightness and reducing the impact of additional materials on the sensor's heat dissipation and other performance characteristics. In chemical production processes, where large amounts of corrosive substances such as acids and alkalis are present, this sensor can accurately measure the temperature of pipes and other components without being corroded. In small, precision instruments, its compact size allows for convenient installation in confined spaces to monitor the temperature of critical components, such as the heat dissipation module of microelectronic devices.

[0018] Furthermore, the housing 1 is made of metal, and its overall size does not exceed 2.0mm*12mm. The sensor housing 1 in this embodiment has a very small overall size, only 2.0mm*12mm, and is a metal shell. This small size allows it to be widely used in equipment or environments with strict space requirements.

[0019] Furthermore, the housing 1 is made of an acid- and alkali-resistant insulating material. To prevent the housing 1 from being corroded by acidic or alkaline substances, the housing 1 is also made of an acid- and alkali-resistant insulating material.

[0020] In this embodiment, the high-temperature connecting wire 2 is made of Teflon. The sensor's wires are made of high-temperature resistant Teflon. Teflon material has excellent high-temperature resistance, chemical stability, and a low coefficient of friction. In high-temperature environments, Teflon wires can ensure the normal circuit connection of the sensor, avoid measurement failures caused by wire damage, and also resist a certain degree of chemical corrosion.

[0021] The above provides a detailed description of a precision temperature sensor provided by the embodiments of this utility model. For those skilled in the art, based on the ideas of the embodiments of this utility model, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A precision temperature sensor, comprising: A housing (1) is provided with a high-temperature wire (2) connected to it, one end of which extends into the interior of the housing (1); The housing (1) is provided with a measuring chip (3), which is connected to a high-temperature wire (2); The feature is that an acid and alkali resistant filling material (4) is injected into the housing (1) from the end where the measuring chip (3) is located; The measuring chip (3) and the housing (1) have a buffer space at their ends, and the buffer space is filled with the acid and alkali resistant filling material (4) to seal the measuring chip (3) inside the housing (1).

2. The precision temperature sensor according to claim 1, characterized in that, The shell (1) is made of metal and its overall size does not exceed 2.0mm*12mm.

3. The precision temperature sensor according to claim 1, characterized in that, The shell (1) is made of an acid and alkali resistant insulating material.

4. The precision temperature sensor according to claim 1, characterized in that, The high-temperature connecting wire (2) is made of Teflon.

Images