CN107238628A - A kind of Heat-Insulation Test equipment - Google Patents

A kind of Heat-Insulation Test equipment Download PDF

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Publication number
CN107238628A
CN107238628A CN201710495242.6A CN201710495242A CN107238628A CN 107238628 A CN107238628 A CN 107238628A CN 201710495242 A CN201710495242 A CN 201710495242A CN 107238628 A CN107238628 A CN 107238628A
Authority
CN
China
Prior art keywords
heat
heat transfer
fixture
sleeve
testing sample
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
CN201710495242.6A
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Chinese (zh)
Inventor
陈�光
曹慧林
王湖
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.)
Beijing Automotive Research Institute Co Ltd
Original Assignee
Beijing Automotive Research Institute 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 Beijing Automotive Research Institute Co Ltd filed Critical Beijing Automotive Research Institute Co Ltd
Priority to CN201710495242.6A priority Critical patent/CN107238628A/en
Publication of CN107238628A publication Critical patent/CN107238628A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00Investigating or analyzing materials by the use of thermal means
    • G01N25/20Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
    • G01N25/48Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
    • G01N25/4846Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation for a motionless, e.g. solid sample
    • G01N25/4853Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00Thermometers giving results other than momentary value of temperature
    • G01K3/08Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
    • G01K3/14Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of space
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/007Wheeled or endless-tracked vehicles

Abstract

The present invention provides a kind of Heat-Insulation Test equipment, including:Thermal source;The heat transfer pathway for the heat for being used to transmit the thermal source is provided with heat transfer piece, the heat transfer piece, one end of the heat transfer pathway is connected with the thermal source;Fixture, the fixture is used to testing sample being located at the other end of the heat transfer pathway so that the testing sample receives the heat of thermal source transmission, and the side of the testing sample is towards the heat transfer pathway and the opposite side dorsad heat transfer pathway;First temperature sensor and second temperature sensor, first temperature sensor and the second temperature sensor are respectively provided at the both sides of the testing sample to detect the temperature of the testing sample both sides respectively.Heat-Insulation Test equipment according to embodiments of the present invention, can directly test the heat-proof quality of the inside and outside heat insulating mattress of vehicle dash panel, and the Heat-Insulation Test device structure is simple, convenient test, be easy to reading directly perceived.

Description

A kind of Heat-Insulation Test equipment
Technical field
The present invention relates to temperature testing device technical field, more particularly, to a kind of Heat-Insulation Test equipment.
Background technology
Automobile has very high requirement for the strong heat-proof quality of front wall fire prevention, usually ensures vehicle interior temperature, it is necessary to give The outer heat insulating mattress of automobile front wall arrangement front wall and heat insulating mattress in front wall.
At present, the heat-proof quality for heat insulating mattress outside automobile front wall and heat insulating mattress in front wall is entered by the way of coefficient of heat insulation Row test, it can intuitively reflect the heat conductivility of homogenous material, but can not directly reflect that this heat insulating mattress of arrangement can be reduced How many temperature.The method that this use coefficient of heat insulation tests heat-proof quality, it is impossible to reflect the outer heat insulating mattress of automobile front wall to cabin spoke The heat-proof quality of thermal source is penetrated, can not also reflect the heat-proof quality of the heat insulating mattress of composite.
The content of the invention
In view of this, the present invention provides a kind of Heat-Insulation Test equipment.
In order to solve the above technical problems, the present invention uses following technical scheme:
Heat-Insulation Test equipment according to embodiments of the present invention, including:
Thermal source;
The heat transfer pathway for the heat for being used to transmit the thermal source, the heat transfer are provided with heat transfer piece, the heat transfer piece One end of passage is connected with the thermal source;
Fixture, the fixture is used to testing sample being located at the other end of the heat transfer pathway so that described to be measured The heat that thermal source described in sample reception is transmitted, the side of the testing sample is towards the heat transfer pathway and opposite side dorsad institute State heat transfer pathway;
First temperature sensor and second temperature sensor, first temperature sensor and the second temperature sensor The both sides of the testing sample are respectively provided to detect the temperature of the testing sample both sides respectively.
Further, the heat transfer piece is formed as hollow columnar, and the thermal source is located at one end of the heat transfer piece, described solid Determine the other end that the testing sample is located at the heat transfer piece by part.
Further, the heat transfer piece includes the first sleeve and second sleeve, first sleeve and the second sleeve It is coaxially disposed and first sleeve and the second sleeve is relatively movable in the axial direction.
Further, the radial dimension of first sleeve is less than the radial dimension of the second sleeve, the first set Cylinder and the second sleeve are connected through a screw thread.
Further, the outside wall surface of first sleeve is provided with along its axially extending scale.
Further, the internal face of first sleeve is provided with aluminium foil.
Further, the fixture includes the first fixture and the second fixture, and first fixture is located at described The other end of heat transfer piece, second fixture is connected with first fixture with the fixed testing sample.
Further, first fixture and second fixture are respectively equipped with mutual corresponding fixing hole, described First fixture and second fixture are detachably connected by screw.
Further, first temperature sensor is sticked in the side of the testing sample, the second temperature sensing Device is sticked in the opposite side of the testing sample.
Further, the Heat-Insulation Test equipment also includes:
Three-temperature sensor, the three-temperature sensor is located at one end of the heat transfer piece to detect the thermal source Temperature.
The above-mentioned technical proposal of the present invention has the beneficial effect that:
Heat-Insulation Test equipment according to embodiments of the present invention, can be with simulating vehicle actual operating mode, accurate test The overall heat-proof quality of the heat-proof quality and vehicle of the inside and outside heat insulating mattress of vehicle dash panel, and its heat-proof quality can be by measuring Temperature directly represent that the Heat-Insulation Test equipment is easy to the adjustment of the inside and outside heat insulating mattress heat-proof quality of vehicle dash panel, is conducive to Cost is controlled, the Heat-Insulation Test device structure is simple, convenient test, be easy to reading directly perceived.
Brief description of the drawings
Fig. 1 is the front view of the Heat-Insulation Test equipment of the embodiment of the present invention;
Fig. 2 is the sectional view of the Heat-Insulation Test equipment of the embodiment of the present invention.
Reference:
Heat-Insulation Test equipment 100;
Thermal source 10;
Heat transfer piece 20;First sleeve 21;Second sleeve 22;Scale 23;
Fixture 30;First fixture 31;Second fixture 32;
First temperature sensor 40;
Second temperature sensor 50;
Three-temperature sensor 60;
Testing sample 70;
Screw 80.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention Accompanying drawing, the technical scheme to the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair Bright a part of embodiment, rather than whole embodiments.Based on described embodiments of the invention, ordinary skill The every other embodiment that personnel are obtained, belongs to the scope of protection of the invention.
Heat-Insulation Test equipment 100 according to embodiments of the present invention is specifically described below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, Heat-Insulation Test equipment 100 according to embodiments of the present invention includes thermal source 10, heat transfer piece 20th, fixture 30, the first temperature sensor 40 and second temperature sensor 50.
Specifically, the heat transfer pathway for the heat for being used to transmit thermal source 10 is provided with heat transfer piece 20, heat transfer pathway One end is connected with thermal source 10, and fixture 30 is used to testing sample 70 being located at the other end of heat transfer pathway so that testing sample 70 Receive the heat that thermal source 10 is transmitted, the side of testing sample 70 is towards heat transfer pathway and opposite side dorsad heat transfer pathway, the One temperature sensor 40 and second temperature sensor 50 are respectively provided at the both sides of testing sample 70 to detect testing sample 70 respectively The temperature of both sides.
In other words, Heat-Insulation Test equipment 100 according to embodiments of the present invention it is main by thermal source 10, it is heat transfer piece 20, solid Determine part 30, the first temperature sensor 40 and second temperature sensor 50 to constitute, thermal source 10 can continue to produce radiant heat, thermal source 10 Temperature can adjust, be easy to more really simulate the heat production situation of actual vehicle engine nacelle radiant heat source.Heat transfer piece The heat transfer pathway for being easy to heat transfer is machined with 20, thermal source 10 is arranged on one end of heat transfer pathway, so that thermal source 10 is produced Raw heat effectively can be conducted by heat transfer pathway, reduce heat loss, save the energy, improve testing sample 70 every The accuracy of thermal performance test.The other end of heat transfer pathway is provided with fixture 30, and fixture 30 is used to fix testing sample 70 absorb the heats that thermal source 10 is transmitted so as to testing sample 70, and testing sample 70 is towards the side of heat transfer pathway and the first temperature Sensor 40 is connected, and dorsad the side of heat transfer pathway is connected testing sample 70 with second temperature sensor 50, passes through the first temperature The difference for the temperature that degree sensor 40 and second temperature sensor 50 are measured respectively, you can draw the thermal insulation of testing sample 70 Energy.
It should be strongly noted that in the actual moving process of vehicle, the outer heat insulating mattress of vehicle dash panel can receive engine Radiant heat in cabin, there is heat insulating mattress and front wall metal plate in certain heat-blocking action, automobile front wall to the radiant heat in enging cabin Gold contact, front wall metal plate be in the direct contact heat source of heat insulating mattress in automobile front wall, automobile front wall heat insulating mattress to front wall metal plate Heat transfer has certain heat-blocking action.
Therefore, when testing the heat-proof quality of heat insulating mattress outside vehicle dash panel by Heat-Insulation Test equipment 100, testing sample 70 can be the outer heat insulating mattress exemplar of vehicle dash panel.First temperature sensor 40 is located at the outer heat insulating mattress exemplar of vehicle dash panel and passed towards heat Pass the side of passage, second temperature sensor 50 is located at the side of the outer heat insulating mattress exemplar of vehicle dash panel dorsad heat transfer pathway, root The difference for the temperature surveyed according to the first temperature sensor 40 and second temperature sensor 50, you can embody the outer heat insulating mattress of vehicle dash panel Heat-proof quality.
When testing the heat-proof quality of heat insulating mattress in vehicle dash panel by Heat-Insulation Test equipment 100, testing sample 70 can To be the sub-assembly of heat insulating mattress exemplar and steel plate in vehicle dash panel, its light plate can be modeled to the front wall metal plate of vehicle.First Temperature sensor 40 is located at side of the steel plate towards heat transfer pathway, and second temperature sensor 50 is located at heat insulating mattress in vehicle dash panel The side of exemplar dorsad heat transfer pathway, the difference for the temperature surveyed according to the first temperature sensor 40 and second temperature sensor 50 Value, you can represent the heat-proof quality of heat insulating mattress in vehicle dash panel.
Heat-Insulation Test equipment 100 may be used also except can individually test the heat-proof quality of the inside and outside heat insulating mattress of vehicle dash panel With according to the order of heat insulating mattress exemplar arranges testing sample 70, the in heat insulating mattress exemplar, steel plate and vehicle dash panel outside vehicle dash panel One temperature sensor 40 is located at the outer heat insulating mattress exemplar of vehicle dash panel towards the side of heat transfer pathway, and second temperature sensor 50 is set The side of heat insulating mattress exemplar dorsad heat transfer pathway in vehicle dash panel, the temperature that second temperature sensor 50 is measured can be represented The difference for the temperature that the vehicle interior temperature of simulation, the first temperature sensor 40 and the first temperature sensor 40 are surveyed represents that vehicle is overall Heat-proof quality.
Thus, Heat-Insulation Test equipment 100 according to embodiments of the present invention, can with simulating vehicle actual operating mode, The heat-proof quality and the overall heat-proof quality of vehicle of the accurate test inside and outside heat insulating mattress of vehicle dash panel, and the thermal insulation measured It can directly be represented by test temperature, the Heat-Insulation Test equipment 100 is simple in construction, convenient test, be easy to reading directly perceived.
According to one embodiment of present invention, heat transfer piece 20 is formed as hollow columnar, and thermal source 10 is located at the one of heat transfer piece 20 Testing sample 70 is located at the other end of heat transfer piece 20 by end, fixture 30.
That is, heat transfer piece 20 can be generally formed into hollow cylindrical structure, it is ensured that heat transmission is uniform, improve and survey The accuracy of amount, thermal source 10 be arranged on heat transfer piece 20 one end, and thermal source 10 height can be with heat transfer piece 20 radical length It is adapted, testing sample 70 can be arranged on the opposite side of heat transfer piece 20 by fixture 30, fixture 30 and testing sample 70 Height can also be adapted with the radical length of heat transfer piece 20, be easy to the heat that thermal source 10 is produced farthest by heat transfer piece 20 heat transfer pathway passes to testing sample 70, can reduce thermal loss, saves the energy, can more accurately test and treat again The heat-proof quality of test sample product 70.Fixture 30 can be detachably connected with the opposite side of heat transfer piece 20 by screw thread, improved and fixed Efficiency of assembling between part 30 and heat transfer piece 20.
In certain specific embodiments of the invention, heat transfer piece 20 includes the first sleeve 21 and second sleeve 22, first Sleeve 21 and second sleeve 22 are coaxially disposed and the first sleeve 21 and second sleeve 22 are relatively movable in the axial direction.
In other words, heat transfer piece 20 can be made up of the first sleeve 21 and second sleeve 22, the first sleeve 21 and second set Cylinder 22 on the same axis can be relatively movable, is easy to adjust the axial length of heat transfer piece 20, convenient to adjust heat according to actual conditions The distance between source 10 and testing sample 70, are conducive to improving the accuracy of the heat-proof quality of testing sample 70 test.
According to one embodiment of present invention, the radial dimension of the first sleeve 21 is less than the radial dimension of second sleeve 22, First sleeve 21 and second sleeve 22 are connected through a screw thread.
That is, second sleeve 22 can be set on the first sleeve 21, the first sleeve 21 is located at close to thermal source 10 One end, second sleeve 22 is located at close to one end of fixture 30, and the outside wall surface of the first sleeve 21 is provided with external screw thread, second sleeve 22 The internal thread that internal face is provided with and the outside wall surface of the first sleeve 21 cooperates, is conveniently adjusted the axial length of heat transfer piece 20, it is ensured that More real simulating vehicle thermal source 10 is respectively to the distance of heat insulating mattress in heat insulating mattress in vehicle dash panel or vehicle dash panel, and raising is treated The accuracy of the heat-proof quality of test sample product 70 test.
In certain specific embodiments of the invention, the outside wall surface of the first sleeve 21 is provided with along its axially extending scale 23.By being machined with the outside wall surface of the first sleeve 21 along its axially extending scale 23, thermal source 10 can be accurately adjusted and to be measured The distance between sample 70, reduces the error of the heat-proof quality of testing sample 70 test.
According to one embodiment of present invention, the internal face of the first sleeve 21 is provided with aluminium foil.By in the first sleeve 21 Internal face sets aluminium foil, is conducive to the heat reflected in the first sleeve 21, reduces scattering and disappearing for heat, and the heat for improving thermal source 10 is passed Defeated efficiency, the effectively save energy improves the accuracy of the heat-proof quality of testing sample 70 test.
In certain specific embodiments of the invention, fixture 30 includes the first fixture 31 and the second fixture 32, First fixture 31 is located at the other end of heat transfer piece 20, and the second fixture 32 is connected to fix testing sample with the first fixture 31 70。
In other words, fixture 30 is mainly made up of the first fixture 31 and the second fixture 32, and the first fixture 31 is pacified Mounted in the other end of heat transfer piece 20, the first fixture 31 and the second fixture 32 can be formed as exemplar folder, and testing sample 70 can To be clipped in the middle of the first fixture 31 and the second fixture 32, the testing sample 70 of convenient test different-thickness is applied widely.
According to one embodiment of present invention, the first fixture 31 and the second fixture 32 are respectively equipped with mutually corresponding solid Determine hole, the first fixture 31 and the second fixture 32 are detachably connected by screw 80.
That is, the two ends of the first fixture 31 and the second fixture 32 are machined with mutually correspondence fixing hole, spiral shell respectively Nail 80 can be detachably connected through fixing hole with the first fixture 31 and the second fixture 32, improved fixture and treated test sample Efficiency of assembling between product 70, and the attended operation of screw 80 is easy, and fixed effect is notable.
In certain specific embodiments of the invention, the first temperature sensor 40 is sticked in the side of testing sample 70, Second temperature sensor 50 is sticked in the opposite side of testing sample 70.
In other words, the first temperature sensor 40 can be sticked in testing sample 70 towards a side surface of thermal source 10, Two temperature sensors 50 can be sticked in a side surface of the dorsad thermal source 10 of testing sample 70, pass through the He of the first temperature sensor 40 The difference for the temperature that second temperature sensor 50 is measured, you can draw the heat-proof quality of testing sample 70, test is simple, is easy to straight See and read, reliability is high.
According to one embodiment of present invention, Heat-Insulation Test equipment 100 also includes three-temperature sensor 60.
Specifically, three-temperature sensor 60 is located at one end of heat transfer piece 20 to detect the temperature of thermal source 10.Ensure simulation Authenticity, improve measurement accuracy.
Sum it up, Heat-Insulation Test equipment 100 according to embodiments of the present invention, can be with simulating vehicle actual motion work Condition, the heat-proof quality and the overall heat-proof quality of vehicle of the accurate test inside and outside heat insulating mattress of vehicle dash panel, and measure it is heat-insulated Performance can directly represent that the Heat-Insulation Test equipment 100 is easy to the inside and outside heat insulating mattress thermal insulation of vehicle dash panel by test temperature The adjustment of energy, is conducive to controlling cost, the Heat-Insulation Test equipment 100 is simple in construction, convenient test, is easy to reading directly perceived.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (10)

1. a kind of Heat-Insulation Test equipment, it is characterised in that including:
Thermal source;
The heat transfer pathway for the heat for being used to transmit the thermal source, the heat transfer pathway are provided with heat transfer piece, the heat transfer piece One end connected with the thermal source;
Fixture, the fixture is used to testing sample being located at the other end of the heat transfer pathway so that the testing sample Receive the heat of thermal source transmission, the side of the testing sample is towards the heat transfer pathway and the opposite side dorsad heat Transmission channels;
First temperature sensor and second temperature sensor, first temperature sensor and second temperature sensor difference The both sides of the testing sample are located to detect the temperature of the testing sample both sides respectively.
2. Heat-Insulation Test equipment according to claim 1, it is characterised in that the heat transfer piece is formed as hollow posts Shape, the thermal source is located at one end of the heat transfer piece, and the testing sample is located at the another of the heat transfer piece by the fixture End.
3. Heat-Insulation Test equipment according to claim 2, it is characterised in that the heat transfer piece include the first sleeve and Second sleeve, first sleeve and the second sleeve are coaxially disposed and first sleeve and the second sleeve are in axial direction On it is relatively movable.
4. Heat-Insulation Test equipment according to claim 3, it is characterised in that the radial dimension of first sleeve is small In the radial dimension of the second sleeve, first sleeve and the second sleeve are connected through a screw thread.
5. Heat-Insulation Test equipment according to claim 4, it is characterised in that the outside wall surface of first sleeve is provided with Along its axially extending scale.
6. Heat-Insulation Test equipment according to claim 3, it is characterised in that the internal face of first sleeve is provided with Aluminium foil.
7. Heat-Insulation Test equipment according to claim 1, it is characterised in that the fixture includes the first fixture With the second fixture, first fixture is located at the other end of the heat transfer piece, and second fixture is consolidated with described first Determine part to be connected with the fixed testing sample.
8. Heat-Insulation Test equipment according to claim 7, it is characterised in that first fixture and described second Fixture is respectively equipped with mutual corresponding fixing hole, first fixture and second fixture by screw removably It is connected.
9. Heat-Insulation Test equipment according to claim 1, it is characterised in that first temperature sensor is sticked The side of the testing sample, the second temperature sensor is sticked in the opposite side of the testing sample.
10. Heat-Insulation Test equipment according to claim 1, it is characterised in that also include:
Three-temperature sensor, the three-temperature sensor is located at one end of the heat transfer piece to detect the temperature of the thermal source Degree.
CN201710495242.6A 2017-06-26 2017-06-26 A kind of Heat-Insulation Test equipment Pending CN107238628A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710495242.6A CN107238628A (en) 2017-06-26 2017-06-26 A kind of Heat-Insulation Test equipment

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Application Number Priority Date Filing Date Title
CN201710495242.6A CN107238628A (en) 2017-06-26 2017-06-26 A kind of Heat-Insulation Test equipment

Publications (1)

Publication Number Publication Date
CN107238628A true CN107238628A (en) 2017-10-10

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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111077179A (en) * 2019-12-13 2020-04-28 蒋国政 Environment-friendly material heat-proof quality check out test set

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111077179A (en) * 2019-12-13 2020-04-28 蒋国政 Environment-friendly material heat-proof quality check out test set

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Application publication date: 20171010