CN104964752A - Temperature sensor applied to automotive engine cooling system and potting method of temperature sensor potting adhesive - Google Patents

Temperature sensor applied to automotive engine cooling system and potting method of temperature sensor potting adhesive Download PDF

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Publication number
CN104964752A
CN104964752A CN201510372815.7A CN201510372815A CN104964752A CN 104964752 A CN104964752 A CN 104964752A CN 201510372815 A CN201510372815 A CN 201510372815A CN 104964752 A CN104964752 A CN 104964752A
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CN
China
Prior art keywords
sensor
chip
potting
temperature sensor
sensor housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510372815.7A
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Chinese (zh)
Inventor
丁志阳
洪玉蓉
朱静
吴玉胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SuZhou Industrial Park Elion Technology Co Ltd
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SuZhou Industrial Park Elion Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SuZhou Industrial Park Elion Technology Co Ltd filed Critical SuZhou Industrial Park Elion Technology Co Ltd
Priority to CN201510372815.7A priority Critical patent/CN104964752A/en
Publication of CN104964752A publication Critical patent/CN104964752A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a temperature sensor which comprises a sensor casing body, a nut seat, a connector, a transparent heat shrink tubing, a heat protection heat shrink tubing and a wire harness. The connector comprises an AMP male end, an AMP jacket, a KST terminal and a KST waterproof plug. A PCB board is arranged in the sensor casing body. A chip, a capacitor, a power supply wire, a ground wire and a signal wire are arranged on the PCB board. The nut seat of the sensor is fixed on the sensor casing body to form a closed space. Potting adhesive of epoxy resin is arranged in the closed space. A potting method of the potting adhesive mainly comprises the steps of transparent heat shrink tubing heating, heat conduction silicone grease coating, power supply wire, ground wire and signal wire setting and epoxy resin potting. The temperature sensor can quickly and accurately measure the temperature of a water tank, an intercooler and an air outlet of an engine cooling system, can be connected with a liquid crystal display to display temperature data on the liquid crystal display, and has a long service life. Through the potting method of the potting adhesive, the accuracy of the sensor can be improved.

Description

The glue-pouring method of a kind of temperature sensor for car engine cooling system and this temperature sensor casting glue
Technical field
The present invention relates to a kind of temperature sensor, particularly relate to a kind of temperature sensor for car engine cooling system.
Background technology
Along with the development of car engine cooling system, more and more need to monitor the temperature relevant to cooling system to ensure the normal operation of cooling system.But at present, the temperature sensor that car engine cooling system uses mostly is analog temperature sensor, and this sensor utilizes the relation of platinum resistance thermometer sensor, resistance and temperature variation to record the temperature of related substances.This temperature sensor generally main comprise thermistor, chip and A D modular converter, thermistor records the resistance of object and resistance is converted into temperature data, again by A D modular converter and chip abstract temperature data is converted into concrete Temperature numerical, be shown on liquid crystal display.This sensor can be the object reaching measuring tempeature, but in measuring process, thermistor is too responsive to temperature, easily generates heat, and damages thermistor, reduces the serviceable life of temperature sensor.
Summary of the invention
For solving short problem in existing temperature sensor serviceable life, the present invention proposes a kind of temperature sensor measuring water tank and charge air cooler temperature.Temperature sensor of the present invention comprises sensor housing, nut seat, connector, the transparent heat draw, thermal resistance heat-shrink tube and wire harness, connector comprises AMP male end, AMP sheath, KST terminal and KST waterproof plug, pcb board is comprised in sensor housing, pcb board there are chip, electric capacity and power lead, ground wire and signal wire, the nut seat of this sensor is fixed on the space that on sensor housing, formation one is airtight, and this confined space comprises casting glue.
Temperature sensor of the present invention have employed the structure of temperature sensor different from the past, do not use thermistor on the one hand, improve the serviceable life of this temperature sensor, on the other hand, the application of pcb board and casting glue substantially increases sensitivity and the degree of accuracy of this sensor, enables this temperature sensor obtain the temperature of water tank and charge air cooler fast and accurately.
Present invention also offers a kind of glue-pouring method of casting glue, the method has following two kinds: a kind of step is as follows: one, heating transparent heat-shrink tube; Two, heat-conducting silicone grease is coated in the top of chip; Three, power lead, ground wire, signal wire are placed on the chip of painting heat-conducting silicone grease, and chip is put into sensor housing; Four, epoxy resin is poured into sensor housing; Five, nut seat is screwed on sensor housing.
Another kind of glue-pouring method comprises following several steps: one, heating transparent heat-shrink tube; Two, heat-conducting silicone grease is coated in the top of chip; Three, epoxy resin is poured into sensor housing; Four, power lead, ground wire, signal wire are placed on the chip of painting heat-conducting silicone grease, and chip is put into sensor housing; Five, nut seat is screwed on sensor housing.
These two kinds of glue-pouring method steps are simple, are easy to operation, and play important effect to the sensitivity and degree of accuracy aspect improving this temperature sensor.
Accompanying drawing explanation
Fig. 1 is the structural drawing of this temperature sensor.In figure, 1 is sensor housing, and 2 is nut seat, and 3 is connector, and 4 is wire harness, and 5 is thermal resistance heat-shrink tube, and 6 is the transparent heat draw, and 11 is chip, and 12 is electric capacity.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are explained.Find out from accompanying drawing, the present invention includes sensor housing 1, nut seat 2, connector 3, wire harness 4, thermal resistance heat-shrink tube 5, the transparent heat draw 6.Comprise chip 11, electric capacity 12 in sensor housing 1, also comprise power lead, ground wire and signal wire, chip 11, electric capacity 12, power lead, ground wire and signal wire are arranged on a pcb board in sensor housing 1.The sensor housing 1 of this sensor and nut seat 2 define an airtight space, and this confined space has poured into a kind of casting glue of epoxy resin.
The glue-pouring method of this sensor has following two kinds: a kind of step is as follows: one, heating transparent heat-shrink tube; Two, heat-conducting silicone grease is coated in the top of chip; Three, power lead, ground wire, signal wire are placed on the chip of painting heat-conducting silicone grease, and chip is put into sensor housing; Four, epoxy resin is poured into sensor housing; Five, nut seat is screwed on sensor housing.
Another kind of glue-pouring method comprises following several steps: one, heating transparent heat-shrink tube; Two, heat-conducting silicone grease is coated in the top of chip; Three, epoxy resin is poured into sensor housing; Four, power lead, ground wire, signal wire are placed on the chip of painting heat-conducting silicone grease, and chip is put into sensor housing; Five, nut seat is screwed on sensor housing.
Epoxy resin embedding adhesive filling in this temperature pick-up shell substantially increases the susceptibility of temperature sensor to temperature and temperature variation, this temperature sensor is made to sense temperature rapidly, chip in housing 1 on pcb board processes the temperature data obtained, and pass to connector 3 by wire harness 4, in conjunction with power lead, temperature is passed to the liquid crystal display be connected with temperature sensor.The transparent heat draw and thermal resistance heat-shrink tube add the high-temperature capability of this temperature sensor, improve the serviceable life of temperature sensor.
By reference to the accompanying drawings embodiments of the present invention are described above, but the invention is not restricted to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from present inventive concept.

Claims (3)

1. the temperature sensor for car engine cooling system, comprise sensor housing, nut seat, connector, the transparent heat draw, thermal resistance heat-shrink tube and wire harness, it is characterized in that, pcb board is comprised in sensor housing, pcb board there are chip, electric capacity and power lead, ground wire and signal wire, the nut seat of this sensor is fixed on the space that on sensor housing, formation one is airtight, and this confined space comprises a kind of epoxy resin embedding adhesive.
2. temperature sensor as claimed in claim 2, it is characterized in that, the encapsulating step of described casting glue is as follows: one, heating transparent heat-shrink tube; Two, heat-conducting silicone grease is coated in the top of chip; Three, power lead, ground wire, signal wire are placed on the chip of painting heat-conducting silicone grease, and chip is put into sensor housing; Four, epoxy resin is poured into sensor housing; Five, nut seat is screwed on sensor housing.
3. temperature sensor as claimed in claim 2, it is characterized in that, the encapsulating step of described casting glue is as follows: one, heating transparent heat-shrink tube; Two, heat-conducting silicone grease is coated in the top of chip; Three, epoxy resin is poured into sensor housing; Four, power lead, ground wire, signal wire are placed on the chip of painting heat-conducting silicone grease, and chip is put into sensor housing; Five, nut seat is screwed on sensor housing.
CN201510372815.7A 2015-06-29 2015-06-29 Temperature sensor applied to automotive engine cooling system and potting method of temperature sensor potting adhesive Pending CN104964752A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510372815.7A CN104964752A (en) 2015-06-29 2015-06-29 Temperature sensor applied to automotive engine cooling system and potting method of temperature sensor potting adhesive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510372815.7A CN104964752A (en) 2015-06-29 2015-06-29 Temperature sensor applied to automotive engine cooling system and potting method of temperature sensor potting adhesive

Publications (1)

Publication Number Publication Date
CN104964752A true CN104964752A (en) 2015-10-07

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105527037A (en) * 2015-12-31 2016-04-27 广东爱晟电子科技有限公司 Temperature sensor with novel insulated packaging structure and packaging method thereof
CN106052897A (en) * 2016-07-18 2016-10-26 南京时恒电子科技有限公司 Temperature sensor and production technology thereof
CN110906220A (en) * 2018-08-28 2020-03-24 苏州固本电子有限公司 Suspension wire assembly for household decorative lamp

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08334418A (en) * 1995-06-09 1996-12-17 Nippondenso Co Ltd Thermistor type temperature detector
CN201772940U (en) * 2010-06-25 2011-03-23 西安铁路信号工厂 Steel rail temperature sensor
CN202329861U (en) * 2011-11-21 2012-07-11 肇庆市金龙宝电子有限公司 Temperature sensor adopting special-shaped NTC (negative temperature coefficient) thermistor and used in water dispensers and small household appliances
CN202937328U (en) * 2012-11-19 2013-05-15 上海叶盛电气有限公司 Engine oil temperature sensor of engine
CN203259264U (en) * 2013-05-14 2013-10-30 杨永鎏 Packaging structure of heat-sensitive temperature sensor
CN103398795A (en) * 2013-08-14 2013-11-20 肇庆爱晟电子科技有限公司 Water-proof and damp-proof temperature sensor
CN203643045U (en) * 2013-11-21 2014-06-11 深圳市科敏传感器有限公司 High-reliability temperature sensor for water heater
CN203643048U (en) * 2013-12-09 2014-06-11 深圳市科敏传感器有限公司 Highly reliable temperature sensor for electric heating pot

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08334418A (en) * 1995-06-09 1996-12-17 Nippondenso Co Ltd Thermistor type temperature detector
CN201772940U (en) * 2010-06-25 2011-03-23 西安铁路信号工厂 Steel rail temperature sensor
CN202329861U (en) * 2011-11-21 2012-07-11 肇庆市金龙宝电子有限公司 Temperature sensor adopting special-shaped NTC (negative temperature coefficient) thermistor and used in water dispensers and small household appliances
CN202937328U (en) * 2012-11-19 2013-05-15 上海叶盛电气有限公司 Engine oil temperature sensor of engine
CN203259264U (en) * 2013-05-14 2013-10-30 杨永鎏 Packaging structure of heat-sensitive temperature sensor
CN103398795A (en) * 2013-08-14 2013-11-20 肇庆爱晟电子科技有限公司 Water-proof and damp-proof temperature sensor
CN203643045U (en) * 2013-11-21 2014-06-11 深圳市科敏传感器有限公司 High-reliability temperature sensor for water heater
CN203643048U (en) * 2013-12-09 2014-06-11 深圳市科敏传感器有限公司 Highly reliable temperature sensor for electric heating pot

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105527037A (en) * 2015-12-31 2016-04-27 广东爱晟电子科技有限公司 Temperature sensor with novel insulated packaging structure and packaging method thereof
CN106052897A (en) * 2016-07-18 2016-10-26 南京时恒电子科技有限公司 Temperature sensor and production technology thereof
CN106052897B (en) * 2016-07-18 2020-02-14 南京时恒电子科技有限公司 Temperature sensor and production process thereof
CN110906220A (en) * 2018-08-28 2020-03-24 苏州固本电子有限公司 Suspension wire assembly for household decorative lamp

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Application publication date: 20151007