CN104634480A - Constant-temperature detection device for temperature sensor - Google Patents

Constant-temperature detection device for temperature sensor Download PDF

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Publication number
CN104634480A
CN104634480A CN201510026039.5A CN201510026039A CN104634480A CN 104634480 A CN104634480 A CN 104634480A CN 201510026039 A CN201510026039 A CN 201510026039A CN 104634480 A CN104634480 A CN 104634480A
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China
Prior art keywords
lid
temperature detection
detection box
constant temperature
box
Prior art date
Application number
CN201510026039.5A
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Chinese (zh)
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CN104634480B (en
Inventor
高凤谊
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安徽瑞鑫自动化仪表有限公司
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Publication of CN104634480A publication Critical patent/CN104634480A/en
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Publication of CN104634480B publication Critical patent/CN104634480B/en

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Abstract

The invention discloses a constant-temperature detection device for a temperature sensor. The constant-temperature detection device comprises a constant-temperature detection box, a first box cover, a second box cover, a third box cover, a to-be-detected temperature sensor and a thermocouple sensor, wherein the opening of the constant-temperature detection box is formed upwards; the upper end of one side of the constant-temperature detection box is provided with a hot air inlet; the lower end of the other side of the constant-temperature detection box is provided with an air outlet; a heat preserving sleeve which sticks close to a box wall is arranged in the constant-temperature detection box; the thermocouple sensor penetrates through the constant-temperature detection box and the heat preserving sleeve in sequence from the bottom surface of the constant-temperature detection box, and extends into the heat preserving sleeve; the opening of the constant-temperature detection box is enclosed through the first box cover; the third box cover, the second box cover and the first box cover are connected with the constant-temperature detection box through first fasteners; the to-be-detected temperature sensor penetrates through the third box cover, the second box cover and the first box cover in sequence; a pressing part for fixing the to-be-detected temperature sensor on the second box cover is arranged on the third box cover. The constant-temperature detection device is simple in structure, the production cost is reduced, the detection accuracy is increased, and the detection efficiency is increased.

Description

A kind of Thermostatic detection device for temperature sensor

Technical field

The present invention relates to temperature sensor detection technique field, particularly relate to a kind of Thermostatic detection device for temperature sensor.

Background technology

In the middle of multiple sensors, temperature sensor uses maximum a kind of sensors.The proportion of temperature sensor in society greatly exceed the sensor of other type, wherein the sensitive element of most temperature sensor is semiconductor thermistor, because within the scope of perform region, semiconductor thermistor has the sensitivity that other element does not have.

In temperature sensor, thermistor resistance can reduce along with the increase of external temperature.To traditional detection method mainly water inspection or the oily inspection method (temperature range heated as required is selected) of this type of temperature sensor, be placed on the fluid conditions of different temperatures by temperature sensor under, use the resistance value under different temperatures environment between multimeter detected temperatures sensor two-terminal simultaneously, then standard value is compared with the resistance value detected, and then reach the object of detection.Because tank or sump capacity are large, thermal capacity is high, and warming and cooling rate is comparatively slow, and often need the wait long period when therefore utilizing the method to detect, and the equal control of water temperature is more difficult, measuring accuracy can not ensure, can not meet the demands in actual production.

Summary of the invention

In order to solve the technical matters existed in background technology, the present invention proposes a kind of Thermostatic detection device for temperature sensor, structure is simple, reduces production cost, improves accuracy of detection, improve detection efficiency.

A kind of Thermostatic detection device for temperature sensor that the present invention proposes, comprises Constant Temperature Detection box, the first lid, the second lid, the 3rd lid, temperature sensor to be detected and thermocouple sensor, the opening up setting of Constant Temperature Detection box, upper end, Constant Temperature Detection box side is provided with hot air inlet, Constant Temperature Detection box opposite side lower end is provided with exhaust outlet, the muff being close to box wall is provided with in Constant Temperature Detection box, upper end, muff side is provided with the hot air intake port corresponding with hot air inlet, muff opposite side lower end is provided with the air draft port corresponding with exhaust outlet, hot blast pipe is enclosed within hot air intake port and is fixed on Constant Temperature Detection box by the first chuck, exhaust duct sleeve is at air draft port and be fixed on Constant Temperature Detection box by the second chuck, thermocouple sensor runs through Constant Temperature Detection box successively from Constant Temperature Detection box bottom surface, muff also stretches in muff, the opening of Constant Temperature Detection box is closed by the first lid, the second lid and the 3rd lid is provided with successively above first lid, 3rd lid, the second lid, the first lid are connected with Constant Temperature Detection box by the first securing member, temperature sensor to be detected runs through the 3rd lid, the second lid, the first lid successively, and the test side of temperature sensor to be detected is stretched in muff, the 3rd lid is provided with the compressing member be fixed on by temperature sensor to be detected on second lid.

Preferably, thermocouple sensor is positioned at the middle part of Constant Temperature Detection box bottom surface, and temperature sensor to be detected and thermocouple sensor are positioned on same vertical curve.

Preferably, the first lid being positioned at Constant Temperature Detection box side is provided with the closure gate of closed temperature sensor perforation to be detected, and closure gate is connected on the first lid by torsion spring.

Preferably, the 3rd lid is provided with the stage clip be fixed on by temperature sensor to be detected on second lid.

Preferably, the first chuck, the second chuck are all connected with Constant Temperature Detection box by the second securing member.

Preferably, be provided with projection in Constant Temperature Detection box bottom surface, projection is provided with the 3rd securing member of stationary heat thermocouple sensor.

Preferably, the first securing member, the second securing member, the 3rd securing member all adopt screw.

A kind of Thermostatic detection device for temperature sensor provided by the invention, Constant Temperature Detection box is according to the configuration design of temperature sensor to be detected, volume is little, ensures to prevent local heating from affecting accuracy of detection by hot blast homogeneous temperature in Constant Temperature Detection box that hot blast pipe blows into; Hot blast pipe sends hot blast to Constant Temperature Detection box, and the real time temperature of Constant Temperature Detection box is detected by thermocouple sensor, and regulate hot air flow or the hot blast temperature of hot blast pipe according to the real time temperature in Constant Temperature Detection box.When detecting, temperature sensor to be detected runs through the 3rd lid successively, second lid, first lid and its test side is stretched in Constant Temperature Detection box, and by stage clip, temperature sensor to be detected is fixed on the second lid, simultaneously the test side of temperature sensor to be detected and stifled air door offset and stifled air door can be made to decline, to be detected complete after taking-up temperature sensor to be detected, the effect Regression original position of stifled air door Niu Yellow also closes the first lid, prevent heat from distributing from Constant Temperature Detection box, ensure that the stable of temperature in Constant Temperature Detection box, reduce production cost, improve accuracy of detection and detection efficiency.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of Thermostatic detection device for temperature sensor that the present invention proposes.

Embodiment

As shown in Figure 1, Fig. 1 is the structural representation of a kind of Thermostatic detection device for temperature sensor that the present invention proposes.

With reference to Fig. 1, a kind of Thermostatic detection device for temperature sensor that the present invention proposes, comprises Constant Temperature Detection box 1, first lid 11, second lid 12, the 3rd lid 13, temperature sensor to be detected 2 and thermocouple sensor 3, the opening up setting of Constant Temperature Detection box 1, upper end, Constant Temperature Detection box 1 side is provided with hot air inlet, Constant Temperature Detection box 1 opposite side lower end is provided with exhaust outlet, the muff 14 being close to box wall is provided with in Constant Temperature Detection box 1, upper end, muff 14 side is provided with the hot air intake port corresponding with hot air inlet, muff 14 opposite side lower end is provided with the air draft port corresponding with exhaust outlet, hot blast pipe 4 is enclosed within hot air intake port and is fixed on Constant Temperature Detection box 1 by the first chuck, exhaust duct 5 is enclosed within air draft port and is fixed on Constant Temperature Detection box 1 by the second chuck, first chuck, second chuck is all connected with Constant Temperature Detection box 1 by trip bolt.Thermocouple sensor 3 runs through Constant Temperature Detection box 1, muff 14 stretch in muff 14 successively from Constant Temperature Detection box 1 bottom surface; Be provided with projection in Constant Temperature Detection box 1 bottom surface, thermocouple sensor 3 is fixed in projection by trip bolt.

The opening of Constant Temperature Detection box 1 is closed by the first lid 11, the second lid 12 and the 3rd lid 13 is provided with successively above first lid 11, 3rd lid 13, second lid 12, first lid 11 is connected with Constant Temperature Detection box 1 by trip bolt, temperature sensor 2 to be detected runs through the 3rd lid 13 successively, second lid 12, first lid 11, and the test side of temperature sensor 2 to be detected is stretched in muff 14, 3rd lid 13 is provided with the compressing member be fixed on by temperature sensor 2 to be detected on second lid 12, compressing member adopts the stage clip being arranged on the 3rd lid 13, stage clip blocks temperature sensor 2 to be detected in a free state thus is fixed on the second lid by temperature sensor 2 to be detected.

The first lid 11 being positioned at Constant Temperature Detection box 1 side is provided with the closure gate 15 of closed temperature sensor perforation to be detected, and closure gate 15 is connected on the first lid 11 by torsion spring; The test side of temperature sensor 2 to be detected and stifled air door 15 offset and stifled air door 15 can be made to decline, to be detected complete after taking-up temperature sensor 2 to be detected, the effect Regression original position of stifled air door 15 Niu Yellow also closes the first lid 11, prevent heat from distributing from Constant Temperature Detection box 1, ensure that the stable of temperature 1 in Constant Temperature Detection box.

In a particular embodiment, thermocouple sensor 3 is positioned at the middle part of Constant Temperature Detection box 1 bottom surface, and temperature sensor 2 to be detected and thermocouple sensor 3 are positioned on same vertical curve; The temperature that the temperature that temperature sensor 2 to be detected is gathered gathers closest to thermocouple sensor 3, improves accuracy of detection.

In the present invention, the air intake of hot blast pipe adopts blower fan to blow resistive heater and forms hot blast, and hot blast pipe is provided with stop valve, and hot blast pipe sends hot blast to Constant Temperature Detection box 1, and the real time temperature of Constant Temperature Detection box 1 is detected by thermocouple sensor 3; When in Constant Temperature Detection box 1, temperature is greater than preset temperature, the stop valve on hot blast pipe can be closed, when temperature is less than preset temperature in Constant Temperature Detection box 1, the heating power of resistance wire can be improved, ensure the temperature stabilization in Constant Temperature Detection box 1, improve detection efficiency and precision.

The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.

Claims (6)

1. the Thermostatic detection device for temperature sensor, it is characterized in that, comprise Constant Temperature Detection box (1), the first lid (11), the second lid (12), the 3rd lid (13), temperature sensor to be detected (2) and thermocouple sensor (3), the opening up setting of Constant Temperature Detection box (1), Constant Temperature Detection box (1) upper end, side is provided with hot air inlet, Constant Temperature Detection box (1) opposite side lower end is provided with exhaust outlet, the muff (14) being close to box wall is provided with in Constant Temperature Detection box (1), muff (14) upper end, side is provided with the hot air intake port corresponding with hot air inlet, muff (14) opposite side lower end is provided with the air draft port corresponding with exhaust outlet, hot blast pipe (4) is enclosed within hot air intake port and is fixed on Constant Temperature Detection box (1) by the first chuck, exhaust duct (5) is enclosed within air draft port and is fixed on Constant Temperature Detection box (1) by the second chuck, thermocouple sensor (3) runs through Constant Temperature Detection box (1) successively from Constant Temperature Detection box (1) bottom surface, muff (14) also stretches in muff (14), the opening of Constant Temperature Detection box (1) is closed by the first lid (11), first lid (11) top is provided with the second lid (12) and the 3rd lid (13) successively, 3rd lid (13), second lid (12), first lid (11) is connected with Constant Temperature Detection box (1) by the first securing member, temperature sensor to be detected (2) runs through the 3rd lid (13) successively, second lid (12), first lid (11), and the test side of temperature sensor to be detected (2) is stretched in muff (14), 3rd lid (13) is provided with the compressing member be fixed on by temperature sensor to be detected (2) on the second lid (12).
2. the Thermostatic detection device for temperature sensor according to claim 1, it is characterized in that, thermocouple sensor (3) is positioned at the middle part of Constant Temperature Detection box (1) bottom surface, and temperature sensor to be detected (2) and thermocouple sensor (3) are positioned on same vertical curve.
3. the Thermostatic detection device for temperature sensor according to claim 1, it is characterized in that, the first lid (11) being positioned at Constant Temperature Detection box (1) side is provided with the closure gate (15) of closed temperature sensor perforation to be detected, and closure gate (15) is connected on the first lid (11) by torsion spring.
4. the Thermostatic detection device for temperature sensor according to claim 1, is characterized in that, the 3rd lid (13) is provided with the stage clip be fixed on by temperature sensor to be detected on second lid (12).
5. the Thermostatic detection device for temperature sensor according to claim 1, is characterized in that, the first chuck, the second chuck are all connected with Constant Temperature Detection box (1) by the second securing member.
6. the Thermostatic detection device for temperature sensor according to claim 1, is characterized in that, is provided with projection in Constant Temperature Detection box (1) bottom surface, and projection is provided with the 3rd securing member of stationary heat thermocouple sensor (2).
CN201510026039.5A 2015-01-19 2015-01-19 A kind of Thermostatic detection device for temperature sensor CN104634480B (en)

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CN201510026039.5A CN104634480B (en) 2015-01-19 2015-01-19 A kind of Thermostatic detection device for temperature sensor

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CN104634480B CN104634480B (en) 2018-05-04

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107101748A (en) * 2017-06-07 2017-08-29 安徽海盛智能测控科技有限公司 A kind of device for being used to detect cooling-water temperature transmitter
CN108593144A (en) * 2018-03-13 2018-09-28 安徽瑞鑫自动化仪表有限公司 A kind of temperature sensor quality detecting system
CN108827497A (en) * 2018-03-13 2018-11-16 安徽瑞鑫自动化仪表有限公司 A kind of temperature detecting precision method of inspection of temperature sensor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738174A (en) * 1972-03-01 1973-06-12 King Nutronics Corp Temperature calibration system
CN101354294A (en) * 2008-09-08 2009-01-28 王长勋 Cylinder-shaped air medium high temperature constant temperature bath
CN203365021U (en) * 2013-03-18 2013-12-25 中国兵器工业集团第五三研究所 Portable temperature calibrator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738174A (en) * 1972-03-01 1973-06-12 King Nutronics Corp Temperature calibration system
CN101354294A (en) * 2008-09-08 2009-01-28 王长勋 Cylinder-shaped air medium high temperature constant temperature bath
CN203365021U (en) * 2013-03-18 2013-12-25 中国兵器工业集团第五三研究所 Portable temperature calibrator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107101748A (en) * 2017-06-07 2017-08-29 安徽海盛智能测控科技有限公司 A kind of device for being used to detect cooling-water temperature transmitter
CN108593144A (en) * 2018-03-13 2018-09-28 安徽瑞鑫自动化仪表有限公司 A kind of temperature sensor quality detecting system
CN108827497A (en) * 2018-03-13 2018-11-16 安徽瑞鑫自动化仪表有限公司 A kind of temperature detecting precision method of inspection of temperature sensor

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