阅读说明：本技术 一种温度传感器 (Temperature sensor ) 是由 申江涛 于 2019-09-25 设计创作，主要内容包括：一种温度传感器,涉及传感器技术领域,本发明通过在引线A(5)和引线B(6)与传感器连接线(9)的接头处分别套接有绝缘护管(8),然后在壳体(2)的下端设置裙边(7),有效的提高了其耐温、耐压性能,本发明具有体积小、防护等级高等特点,并且可根据不同的安装需要设置不同外形形状的壳体和不同长度的绝缘护管,既增强耐压又起到降低传感器连接线的摩擦风险等,适合大范围的推广和应用。(A temperature sensor relates to the technical field of sensors, wherein an insulating protective pipe (8) is respectively sleeved at the joint of a lead A (5), a lead B (6) and a sensor connecting wire (9), and then a skirt edge (7) is arranged at the lower end of a shell (2), so that the temperature resistance and the pressure resistance of the temperature sensor are effectively improved.)

1. The utility model provides a temperature sensor, includes chip (1), plastic tube (3), baffle (4), lead wire A (5), lead wire B (6) and insulating pillar (8), characterized by: the utility model discloses a temperature sensor, including chip (1) the below interval of chip (1) be equipped with lead wire A (5) and lead wire B (6), be equipped with below chip (1) in the middle of lead wire A (5) and lead wire B (6) baffle (4) of downwardly extending, cup jointed plastic pipe (3) in the periphery of chip (1) filling packaging glue (10) make plastic pipe (3) and chip (1) form the integral type structure, sensor connecting wire (9) are connected respectively to the lower end of lead wire A (5) and lead wire B (6), cup jointed insulating pillar (8) respectively in the joint department of lead wire A (5) and lead wire B (6) and sensor connecting wire (9) and form temperature sensor.

2. The temperature sensor of claim 1, wherein: the periphery of the plastic pipe (3) is sleeved with a shell (2), and the lower end of the shell (2) is provided with a skirt edge (7) which extends downwards and has a small upper port and a large lower port.

3. The temperature sensor of claim 2, wherein: the lower end face of the skirt edge (7) extends to the middle lower part of the insulating protective tube (8).

4. The temperature sensor of claim 1, wherein: the plastic pipe (3) is filled with heat conduction powder, and the upper end and the lower end of the plastic pipe (3) are respectively sealed by packaging glue (10).

5. The temperature sensor of claim 4, wherein: the heat conducting powder is one or the combination of two or more of boron nitride, aluminum nitride, silicon carbide, aluminum, copper and silver.

6. The temperature sensor of claim 1, wherein: the replacement structure of the partition board (4) is that an insulating tube (11) is sleeved on the lead A (5) or the lead B (6).

7. The temperature sensor of claim 1, wherein: the insulating protective tube (8) is a heat shrinkable tube.

8. the temperature sensor of claim 1, wherein: the plastic pipe (3) is a transparent heat-shrinkable pipe.

9. The temperature sensor of claim 1, wherein: the packaging adhesive (10) is Teflon adhesive.

10. The temperature sensor of claim 2, wherein: the shell (2) is a transparent heat shrinkable tube.

Technical Field

The invention relates to the technical field of sensors, in particular to a temperature sensor.

Background

As is known, with the rapid development of science and technology, the demand of temperature sensors in the fields of electronics, communication, new energy vehicles and the like is increasing, and taking new energy vehicles as an example, the motor is a key component of the new energy vehicles, and the continuous work makes the internal temperature rise continuously. In order to ensure safe and normal and stable operation of the components, a temperature sensor is required to be installed inside the motor to detect the internal temperature. Meanwhile, in order to improve the charging stability of the electric automobile, a temperature sensor needs to be arranged at the position of a charging seat to monitor the heating condition of a terminal in the charging process, and the like, but the existing temperature sensor cannot realize high temperature resistance and high voltage resistance due to the limitations of packaging materials and manufacturing processes, is rough and clumsy in appearance structure, is not small and attractive enough, is manufactured to be high and the like, and the protection level of some temperature sensors is lower.

disclosure of Invention

In order to overcome the defects in the background art, the invention provides the temperature sensor, and the temperature sensor effectively improves the temperature resistance and the pressure resistance and simultaneously improves the protection grade and the like by respectively sleeving the insulating protective tubes at the joints of the lead A and the lead B and the sensor connecting wire and arranging the skirt at the lower end of the shell.

In order to achieve the above purpose, the invention adopts the following technical scheme:

The utility model provides a temperature sensor, includes chip, plastic pipe, baffle, lead wire A, lead wire B and insulating pillar the interval is equipped with lead wire A and lead wire B below the chip, is equipped with downwardly extending's baffle below the chip in the middle of lead wire A and lead wire B, has cup jointed the plastic pipe in the periphery of chip the plastic intraductal filling encapsulation glue of moulding makes plastic pipe and chip formation integral type structure, lead wire A and lead wire B's lower terminal is connected the sensor connecting wire respectively, has cup jointed insulating pillar formation respectively in lead wire A and lead wire B and sensor connecting wire's joint department temperature sensor.

The temperature sensor, the casing has been cup jointed to the periphery of plastic tube the lower extreme of casing is equipped with downwardly extending and the big shirt rim of lower port is little.

And the lower end surface of the skirt edge of the temperature sensor extends to the middle lower part of the insulating protective tube.

The temperature sensor, moulding intraductal packing has heat conduction powder, the upper and lower both ends mouth of moulding pipe is respectively with the shutoff of encapsulation glue.

The heat conducting powder of the temperature sensor is one or any combination of two or more of boron nitride, aluminum nitride, silicon carbide, aluminum, copper and silver.

The temperature sensor, the replacement structure of baffle be in lead wire A or lead wire B cup joint insulating tube.

the temperature sensor, insulating pillar is the pyrocondensation pipe.

the temperature sensor, the plastic pipe is a transparent heat shrink pipe.

The packaging glue of the temperature sensor is Teflon glue.

The shell of the temperature sensor is a transparent heat-shrinkable tube.

By adopting the technical scheme, the invention has the following advantages:

The invention has the characteristics of small volume, high protection grade and the like, can be provided with shells with different shapes and insulating protection pipes with different lengths according to different installation requirements, not only enhances the voltage resistance, but also reduces the friction risk of the sensor connecting wire and the like, and is suitable for large-scale popularization and application.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is another schematic structural view of the present invention;

In the figure: 1. a chip; 2. a housing; 3. a shaping tube; 4. a partition plate; 5. a lead A; 6. a lead B; 7. a skirt edge; 8. an insulating protective tube; 9. a sensor connecting wire; 10. packaging glue; 11. an insulating tube.

Detailed Description

The present invention will be explained in more detail by the following examples, which are not intended to limit the invention;

it should be noted that the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., used in describing the structure of the present invention are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

Combine fig. 1 ~ 2 a temperature sensor, including chip 1, plastic tube 3, baffle 4, lead wire A5, lead wire B6 and insulating protective tube 8, below chip 1 in the middle of chip 1 the interval be equipped with lead wire A5 and lead wire B6, be equipped with downwardly extending below chip 1 in the middle of lead wire A5 and lead wire B6 and be used for keeping apart lead wire A5 and lead wire B6 baffle 4, can effectually avoid the mutual influence between lead wire A5 and lead wire B6 and take place the condition such as line short circuit through setting up baffle 4, cup jointed plastic tube 3 in chip 1's periphery the plastic tube 3 is filled encapsulation glue 10 in the plastic tube 3 makes plastic tube 3 and chip 1 form the integral type structure, encapsulation glue 10 is Teflon glue, and Teflon glue can guarantee chip 1's temperature and pressure resistance characteristic etc. simultaneously can also improve application scenario greatly, during concrete implementation, plastic tube 3 is transparent pyrocondensation pipe, then form a heat fusion of transparent pyrocondensation pipe and the chip 1 after sealing glue together more one kind of a firm occasion, through the heating, and firm The integrated structure is that the shaping tube 3 and the chip 1 are more firmly integrated in a hot melting mode after being sealed, the lower ends of the lead A5 and the lead B6 are respectively connected with the sensor connecting wire 9, and the joints of the lead A5 and the lead B6 with the sensor connecting wire 9 are respectively sleeved with the insulating protection tube 8 for protection and insulation to form the temperature sensor.

Further, a shell 2 is sleeved on the periphery of the plastic pipe 3, a skirt 7 which extends downwards and has a small upper port and a large lower port is arranged at the lower end of the shell 2, the lower end face of the skirt 7 extends to the middle lower part of the insulating protection pipe 8, the insulating protection pipe 8 is a heat shrinkable pipe, when the sensor is specifically implemented, the shell 2 is a transparent heat shrinkable pipe, the upper part of the shell 2 and the plastic pipe 3 are fused together by heating to form an integrated structure, so that the appearance of the sensor is more attractive, the cross section of the appearance is more close to a circle, the sensor is convenient to install and fix at a later stage and the like, after the upper end of the shell 2 is fused, the diameter of the lower end of the shell 2 is larger than that of the upper end when the lower end is not heated, and the skirt 7 is further formed, the temperature resistance of the sensor is effectively improved through the arrangement of the skirt 7 and the insulating protection pipe 8, the detailed structure is shown in figures 1-2; when the method is specifically implemented, the shaping pipe 3 and the shell 2 are made of high-temperature-resistant polytetrafluoroethylene, the waterproof grade can reach IP68, the working temperature range is-40-200 ℃, and the insulation resistance is more than or equal to 300 MOmega @500 VDC; the withstand voltage is more than or equal to 3.0KV @ AC & 60S.

Further, in order to improve the detection sensitivity of the invention, the plastic tube 3 is filled with heat conducting powder, the upper and lower ports of the plastic tube 3 are respectively sealed by packaging glue 10, and the heat conducting powder is one or any combination of two or more of boron nitride, aluminum nitride, silicon carbide, aluminum, copper and silver.

Further, the alternative structure of the partition board 4 is that an insulating tube 11 is sleeved on the lead A5 or the lead B6; or the outer edge surfaces of the lead A5 and the lead B6 are sleeved with the insulating tubes 11 respectively.

When the invention is implemented, the cross section can be melted into various shapes, such as round, oval and the like, so that the installation range and the use range of the invention are effectively improved.

When the temperature sensor is implemented specifically, the temperature sensor is directly arranged in the DC/AC high-voltage terminal by taking monitoring of the temperature of the charging seat of the new energy automobile as an example, so that the heating condition of the terminal in the charging process is accurately and timely monitored, and accidents caused by open fire due to overheating are effectively prevented. The application environment has very high requirements on the sensor, not only has sensitive requirements, but also has high pressure and high temperature resistance and high-grade protection.

Further, when the temperature of the coil in the high-voltage electric driver of the engine of the new energy automobile is monitored, the motor can generate heat in the electrifying working process, and in order to enable the motor to work efficiently in the most appropriate temperature range, the temperature sensor completely meets the high-performance requirement of the high-voltage electric driver on the temperature sensor.

The invention has the following advantages:

1. The invention has small volume and is convenient for assembly;

2. the invention has the pressure resistance and temperature resistance, and is suitable for wide electrical environment;

3. the invention has high protection level, is not selected to the surrounding environment, and can meet the requirements of chemical liquid of water, oil, acid and alkali, dust and the like;

4. The invention has high plasticity and low cost, and can flexibly adjust the size of the appearance structure according to different assembly environment requirements so as to meet different requirements of different customers and the like.

The present invention is not described in detail in the prior art.

The embodiments selected for the purpose of disclosing the invention, are presently considered to be suitable, it being understood, however, that the invention is intended to cover all variations and modifications of the embodiments which fall within the spirit and scope of the invention.