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Water temperature sensor

A water temperature sensor and a combination of technology, applied in the field of sensors, can solve the problems of cumbersome assembly process of water temperature sensor, failure to meet the needs of automobile manufacturers, poor contact of thermistor, etc., and achieve the effect of avoiding wire breakage, ensuring reliability, and preventing poor connection

Active Publication Date: 2012-05-09
无锡盛邦电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual manufacturing process, the thermistor is often in poor contact with the ground, resulting in no signal output and poor reliability, which cannot meet the requirements of automobile manufacturers.
In addition, the assembly process of the water temperature sensor of this structure is cumbersome

Method used

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Embodiment Construction

[0018] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0019] Such as figure 1 As shown, a water temperature sensor includes a skeleton 1, a magnetic switch 5, a grounding piece I6, a thermistor 8, a grounding piece II10 and a casing 4. The skeleton 1 is installed in the casing 4, and its top and both sides are provided with terminals 9 , There is a bayonet 11 on the top of the terminals 9 on both sides, its function is to prevent the grounding piece from falling off from the frame, the top of the bayonet 11 is installed with the grounding piece II10, and the grounding piece II10 is welded together with two points of the shell 4. A sealing ring 2 is installed on the ground sheet II10. The grounding piece I6 wraps the l...

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Abstract

The invention discloses a water temperature sensor which comprises a framework, a magnetic switch, a grounding lug I, a thermistor, a grounding lug II and a shell, wherein the framework is arranged in the shell, the grounding lug II and the grounding lug I are arranged on the framework, the grounding lug II is electrically connected with the shell, the grounding lug I is electrically connected with the grounding lug II, the magnetic switch is arranged in the framework and is electrically connected with the grounding lug I, the other end of the magnetic switch is electrically connected with one of terminals which are positioned at the two sides of the framework, the thermistor is arranged under the framework, one end of the thermistor is electrically connected with the other one of the terminals positioned at the two sides of the framework, and the other end of the thermistor is electrically connected with the grounding lug II. With the arrangement of the grounding lug I and the grounding lug II, the thermistor and the shell are electrically connected together, a guide line and a spring are not required to be used, so that defects of guide line breakage or thermistor crushing are overcome, meanwhile, the assembly process is also simplified; and the grounding lugs are used for direct connection, so that the thermistor is ensured to be effectively grounded, and the measuring reliability is ensured.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a water temperature sensor. Background technique [0002] At present, the water temperature sensor is widely used in the field of automobile coolant detection. The existing water temperature sensor uses a spring to exert a pressure on the thermal sheet to ensure that the thermal sheet is in contact with the ground of the shell. At the same time, the thermal sheet and the transmission wire are connected The plug is connected, and then the temperature signal is output through the plug. The water temperature sensor with this structure has high requirements on the flexibility and temperature resistance of the wire because the wire is easy to break. In addition, the water temperature sensor with this structure not only needs to ensure reliable contact between the thermistor and the shell, but also needs to avoid the thermistor being crushed due to excessive pressure, so the requirements for th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/22
Inventor 周健韩伟
Owner 无锡盛邦电子有限公司
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