CN213180401U

CN213180401U - Temperature sensor of diesel engine

Info

Publication number: CN213180401U
Application number: CN202021071565.6U
Authority: CN
Inventors: 施远强
Original assignee: Fortrust Power Control Technology Qidong Co ltd
Current assignee: Fortrust Power Control Technology Qidong Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-05-11
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses a diesel engine temperature sensor, including sensor housing, arrange the thermistor in the casing in, the contact pin of being connected with thermistor, the connector of being connected with the contact pin. The brass sensor shell, the thermistor, the contact pin and the connector are tightly connected in an injection molding manner, so that the structure is simple, and the brass sensor has the characteristics of reliable performance and low cost; secondly, the connector part adopts the whole injection moulding of high strength nylon, has effectually reached waterproof, temperature resistant and corrosion-resistant effect.

Description

Temperature sensor of diesel engine

Technical Field

The utility model relates to a sensor technical field, concretely relates to diesel engine temperature sensor.

Background

Along with the development of society and industrial technology, people pay more and more attention to temperature factors, a plurality of products have a strictly required temperature range, a temperature sensor in a market is a structure formed by adding heat-conducting silicone grease into a shell and then assembling, and the temperature conduction speed is low; meanwhile, the volume of the assembly structure is large, and the heat dissipation of the sensor is too fast, so that the temperature measurement deviation of the sensor is too large.

Therefore, the invention provides a temperature sensor with simple structure and high accuracy, which is a problem to be solved in the field.

SUMMERY OF THE UTILITY MODEL

To there being the structure complicacy in prior art, the unstable problem of performance, the utility model aims to provide a diesel engine temperature sensor, the effectual problem that exists of having solved prior art.

In order to achieve the purpose, the utility model provides a diesel engine temperature sensor, which comprises a brass sensor shell, a thermistor arranged in the shell, a contact pin connected with the thermistor and a connector connected with the contact pin; the brass sensor shell, the thermistor and the contact pin are sequentially and tightly connected through an integral injection molding type connector.

Further, the sensing end of the thermistor is positioned in the brass sensor shell; and the pin of the thermistor lead is connected with the contact pin.

Furthermore, two pins of the thermistor are electrically welded with contact pins through resistors.

Further, both ends of the brass sensor shell are provided with small-section toothed edges.

Furthermore, clamping grooves are formed in two ends of the brass sensor shell.

The utility model provides a diesel engine, it is through passing through the formula zonulae occludens of moulding plastics with whole spare part, and its simple structure has the characteristics of dependable performance.

Drawings

The invention is further described with reference to the following drawings and detailed description.

FIG. 1 is a schematic structural diagram of the present temperature sensor;

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

Referring to fig. 1, a schematic diagram of the temperature sensor is shown, and it can be seen that the temperature sensor includes a thermistor 10, a sensor housing 20, a pin 30 and a connector 40.

Specifically, the sensor housing 20 is preferably made of brass, and has the characteristics of corrosion resistance, wear resistance and the like.

The edges of the two ends of the sensor shell 20 are symmetrically provided with small-segment teeth 60; the end symmetry of sensor housing 20 is equipped with the bulge, respectively is equipped with two draw-in grooves 70 on the bulge, and the outside of bulge has injection mold 80 to be connected with draw-in groove 70, and better closely fixed sensor housing 20 prevents that sensor housing 20 from droing.

The sensing end of the thermistor 10 is placed at the end part inside the sensor shell 20, the thermistor 10 is provided with two pins 50, the two pins 50 penetrate through the sensor shell 20, and the ports of the pins 50 are positioned outside the sensor shell 20 and welded with the contact pins 30 through resistance welding.

The connector 40 is located outside the sensor housing 20 and connected to the pin 30, and is partially formed by injection molding of high-strength nylon. Has good water resistance, temperature resistance and corrosion resistance.

The connector 40 is connected with the thermistor pin 50 through the pin 30, and the signal connection between the inside and the outside is realized.

The components are connected together and placed in a plastic mold 80 to injection mold the connector, while the components are held together tightly by the outer mold 80.

In the specific application, when the sensing end of the sensor is subjected to temperature change, the resistance output by the thermistor 10 of the sensor changes along with the temperature change, and the signal of the internal resistance is transmitted to the connector 40 through the contact pin 30 to be transmitted out, so that the temperature change of the diesel engine is sensed.

The temperature sensor formed according to the scheme is used for detecting water temperature and oil temperature in the field of diesel engines. According to the scheme, all parts are tightly connected together in an injection molding manner, so that the device is simple in structure, and has the characteristics of reliable performance, quick response time, accurate measurement and low cost; secondly, the connector part adopts the whole injection moulding of high strength nylon, has effectually reached waterproof, temperature resistant and corrosion-resistant effect.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A diesel engine temperature sensor comprises a brass sensor shell, a thermistor arranged in the shell, a contact pin connected with the thermistor and a connector connected with the contact pin; the brass sensor is characterized in that the brass sensor shell, the thermistor and the contact pin are sequentially and tightly connected through an integral injection molding type connector; two ends of the brass sensor shell are provided with small-section toothed edges.

2. The diesel engine temperature sensor of claim 1, wherein the sensing end of the thermistor is located in a brass sensor housing; and the pin of the thermistor lead is connected with the contact pin.

3. The diesel engine temperature sensor of claim 1, wherein two pins of the thermistor are electrically connected to the contact pin through a resistor.

4. The diesel engine temperature sensor of claim 1, wherein the brass sensor housing has a slot at each end.