CN206990483U - A kind of heat conduction coefficient tester - Google Patents
A kind of heat conduction coefficient tester Download PDFInfo
- Publication number
- CN206990483U CN206990483U CN201720477826.6U CN201720477826U CN206990483U CN 206990483 U CN206990483 U CN 206990483U CN 201720477826 U CN201720477826 U CN 201720477826U CN 206990483 U CN206990483 U CN 206990483U
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- measuring unit
- thermally conductive
- conductive sheet
- heat conduction
- frame
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Abstract
The utility model discloses a kind of heat conduction coefficient tester, including frame, measuring unit and the lower measuring unit being arranged at immediately below measuring unit are provided with the frame, the upper measuring unit and/or lower measuring unit are slidably arranged in frame, the upper measuring unit is disposed with heated at constant temperature source from top to bottom, the first thermally conductive sheet being bonded with heated at constant temperature source, the lower measuring unit is disposed with to install the mounting groove of part to be measured from top to bottom, second thermally conductive sheet, be bonded with second thermally conductive sheet and thermal conductivity factor known to standard component, the 3rd thermally conductive sheet being bonded with the standard component, the mounting groove, second thermally conductive sheet, standard component and the 3rd thermally conductive sheet cross section are identical, the lower measuring unit, which is wrapped circumferentially around, is provided with thermal insulation layer.The utility model is simple in construction, and cost is low, and measurement efficiency is higher, and precision is preferable, is well positioned to meet the needs used.
Description
Technical field
Test equipment field is the utility model is related to, particularly a kind of heat conduction coefficient tester.
Background technology
Thermal conductivity factor, also known as thermal conductivity, refer under the conditions of steady heat transfer, material thick 1m, and the temperature difference of both side surface is 1
Degree, in 1 second, passes through the heat of 1 square metre of area transmission.Thermal conductivity factor is one of thermal physical property parameter of material, Ye Shigu
The most important thermal physical property parameter of body.Low heat conductivity energy material conducts heat rate is as characterizing the important of building energy conservation and insulation material physical property
Parameter, the accurate measurement of its parameter value have very important theoretical and use value.The measure of existing thermal conductivity factor according to
Thermal conduction mechanism is different, is broadly divided into steady state method and Transient Method, Transient Method by different measured material specific heat capacity differentia influences due to being surveyed
It is larger to measure error；Steady state method is the Measured Results of Thermal Conductivity method of classical insulation material, so far still by extensive use, its principle
It is that rate of heat transfer is equal to the poised state of rate of heat dispation, according to Fourier's one-dimensional stable heat transfer during utilizing steady heat transfer
Model, by the heat flow density, temperature difference and thickness by sample, thermal conductivity factor is calculated.It is existing mainly have it is following several
Measuring method：First, heat-flow meter method, it is that what is obtained is heat conduction system by the hot-fluid of sample with the measurement of corrected heat flow transducer
Several absolute values, during measurement, between the certain sample of thickness is inserted in into two flat boards, certain thermograde is set, uses school
The heat flow transducer just crossed measures the hot-fluid by sample, and sensor contacts between flat board and sample with sample, measures sample
Thickness, the thermograde between upper and lower plates and by the hot-fluid of sample can calculation of thermal conductivity, because heat-flow meter cost is higher,
This measuring method can not be popularized well；2nd, flat plate heat method is protected, its operation principle is similar with heat flow method, is conventional method
One of, available for the demarcation of authentic specimen and the calibration of other instruments, experimental provision uses double-test-piece structure more, and thermal source is positioned at same
Among two pieces of samples of one material, be using two pieces of samples in order to obtain upwards with symmetrical hot-fluid, and make heating in downward direction
The energy of device is tested sample and fully absorbed, and in measurement process, accurate setting is input to the energy on hot plate, is inputted by adjusting
Energy on to auxiliary heater, the measurement temperature between thermal source and accessory plate and thermograde are adjusted, around hot plate
Protection heater and the modes of emplacement hot-fluid that ensures from hot plate to auxiliary heater of sample be linear, one-dimensional, auxiliary
It is radiator after heater, radiator and auxiliary heater contact are good, it is ensured that the removal of heat is controlled with improving, and measurement is added to
The thickness of energy, thermograde and two panels sample on hot plate, the heat conduction system of material just can be calculated using Fourier equations
Number, this measuring method need longer time, and measurement efficiency is too low.Now it is badly in need of a kind of low cost, good measuring accuracy and measurement
The heat conduction coefficient tester of efficiency high meets use demand.
Utility model content
The utility model is intended to one of above-mentioned technical problem at least solving in correlation technique to a certain extent, there is provided one
Kind heat conduction coefficient tester, simple in construction, cost is low, and measurement accuracy and efficiency can meet to use needs well.
Technical scheme is used by the utility model solves its technical problem：
A kind of heat conduction coefficient tester, including frame, measuring unit is provided with the frame and is arranged at measurement
Lower measuring unit immediately below unit, the upper measuring unit and/or lower measuring unit are slidably arranged in frame, it is described on
Measuring unit is disposed with heated at constant temperature source, the first thermally conductive sheet being bonded with heated at constant temperature source, the lower measurement from top to bottom
Unit is disposed with to install the mounting groove of part to be measured, the second thermally conductive sheet from top to bottom, is bonded with second thermally conductive sheet
And standard component, the 3rd thermally conductive sheet being bonded with the standard component known to thermal conductivity factor, the mounting groove, the second thermally conductive sheet, mark
Quasi- part and the 3rd thermally conductive sheet cross section are identical, and the lower measuring unit, which is wrapped circumferentially around, is provided with thermal insulation layer, first thermally conductive sheet,
Temperature sensor is provided with second thermally conductive sheet and the 3rd thermally conductive sheet.
Further, the heated at constant temperature source is electrically connected with controller, and the controller can adjust the heated at constant temperature source
Temperature.
Further, the lower measuring unit is fixed in frame by some support columns.
Further, some leads being vertically arranged are fixed with the frame, the lead is set with can be upper and lower
The installing plate of slip, the upper measuring unit are fixed on the lower surface of the installing plate.
Further, the upper surface of the installing plate is connected with the drive device of its up and down action of driving, the driving dress
Put and be fixed in frame.
Further, the upper rack is provided with fixed plate, and the drive device is fixed in fixed plate.
Further, the drive device is cylinder, and the cylinder stroke is adjustable.
Further, altimeter is fixedly installed on the installing plate, location-plate is fixedly installed on the lead.
Further, the bottom of the frame is provided with some adjustable seats.
The beneficial effects of the utility model are：
The utility model provides a kind of heat conduction coefficient tester, is provided with constant temperature thermal source, places the groove and mark of part to be measured
Quasi- part, and to ensure the uniformity of the precision of measurement and thermo parameters method, be all provided with and lead in the both sides of part to be measured and standard component
Backing, because cross-sectional area is identical, same heat supply, when reaching stable state, contrasted with standard component, according to measurable temperature difference
The thermal conductivity factor of part to be measured is calculated with thickness.Simple in construction, cost is low, and measurement efficiency is higher, and precision is preferable, can be well
Meet the needs used.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is main structure diagram of the present utility model；
Fig. 2 is overlooking the structure diagram of the present utility model.
Embodiment
Referring to figs. 1 to Fig. 2, a kind of heat conduction coefficient tester of the present utility model, including frame 1, set in the frame 1
The lower measuring unit 3 for being equipped with measuring unit 2 and being arranged at immediately below measuring unit 2, the upper measuring unit 2 and/or under
Measuring unit 3 is slidably arranged in frame 1, and the abutting of upper measuring unit 2 and lower measuring unit 3 is realized by sliding, from
And heat transfer occurs and carries out follow-up measurement, the upper measuring unit 2 is disposed with heated at constant temperature source 21 and perseverance from top to bottom
The first thermally conductive sheet 22 that warm heating source 21 is bonded, the lower measuring unit 3 are disposed with to install part to be measured from top to bottom
Mounting groove 31, the second thermally conductive sheet 32, be bonded with second thermally conductive sheet 32 and thermal conductivity factor known to standard component 33, with it is described
The 3rd thermally conductive sheet 34 that standard component 33 is bonded, the mounting groove 31, the second thermally conductive sheet 32, the thermally conductive sheet 34 of standard component 33 and the 3rd
Cross section is identical, and the lower measuring unit 3, which is wrapped circumferentially around, is provided with thermal insulation layer 4.Specifically, first described in the utility model
Thermally conductive sheet 22, the second thermally conductive sheet 32 and the 3rd thermally conductive sheet 34 are all made up of the higher material of thermal conductivity factor.During specific measurement, it will treat
Part to be surveyed to be arranged in the mounting groove 31 of lower measuring unit 3, measuring unit 2 and/or lower measuring unit 3 abut both in driving,
Begun to warm up in the presence of heated at constant temperature source 21, when the temperature of the 3rd thermally conductive sheet 34 tends towards stability, measure part and mark to be measured
The temperature difference and thickness of the quasi- both sides of part 33, you can the thermal conductivity factor of part to be measured is calculated.During calculating, according to Fourier equation formula：
Q=KA Δ T/d, in formula, Q is the heat transmitted, and K is thermal conductivity factor, and A is the cross-sectional area of direction of heat transfer, and Δ T is material two
The temperature difference of side, d are the thickness of material, in the present embodiment, because the thermal source using constant temperature is to the stable state for reaching heat transfer, and
Part to be measured and mark part periphery are provided with thermal insulation layer 4 to prevent scattering and disappearing for heat, so heated at constant temperature source 21 is transmitted to part to be measured
Heat, part to be measured can only be transmitted to standard component 33, and Q equal, and then cross-sectional area A is also equal in the present embodiment, temperature difference Δ T
With thickness is measurable draws, so as to which the standard component 33 according to known to thermal conductivity factor can calculate the thermal conductivity factor of part to be measured.
Further, temperature biography is provided with first thermally conductive sheet 22, the second thermally conductive sheet 32 and the 3rd thermally conductive sheet 34
Sensor, temperature sensor is also associated with temperature display component in the present embodiment, is easy to user clearly to read temperature value.
Further, the heated at constant temperature source 21 is electrically connected with controller, and the controller can adjust the heated at constant temperature
The temperature in source 21, different temperature can be set according to the part to be measured of different materials.The controller can control constent temperature heater
Action, when constent temperature heater heat time long temperature is higher than the design temperature, then controller can control closing heated at constant temperature
Device, it is again turned on when temperature will be less than design temperature, so realizes lasting holding constant temperature.
As a kind of preferred embodiment, in the present embodiment, the lower measuring unit 3 is fixed on by some support columns
In frame, some leads 11 being vertically arranged are fixed with the frame 1, the lead 11, which is set with, can slide up and down
Installing plate 12, the upper measuring unit 2 are fixed on the lower surface of the installing plate 12, by drive upper measuring unit 2 realize with
The contact of lower measuring unit 3.In other embodiments, measuring unit 2 can be taken to fix, the mode that lower measuring unit 3 acts
Or both simultaneously action mode all may be used.
Further, the upper surface of the installing plate 12 is connected with the drive device 5 of its up and down action of driving, the driving
Device 5 is fixed in frame 1.Further, the top of frame 1 is provided with fixed plate 13, and the drive device 5 is fixed
In fixed plate 13.Specifically, in the present embodiment, the drive device 5 is cylinder, and the cylinder stroke is adjustable.Can basis
Upper measuring unit 2 and the stroke of the regulation cylinder of the spacing adaptability of lower measuring unit 3.
Further, altimeter 6 is fixedly installed on the installing plate 12, it is fixed to be fixedly installed on the lead 11
Position plate 7.The thickness of part to be measured can be measured by the altimeter 6 and location-plate 7.During specific measurement, can be not equipped with it is to be measured
In the case of component, upper measuring unit 2 is abutted into lower measuring unit 3, records the reading on the respective heights instrument 6 of location-plate 7 now
Number, after loading onto part to be measured, the part to be measured is abutted by upper measuring unit 2, again reads off the reading on the respective heights instrument 6 of location-plate 7
Number, both differences are the thickness of part to be measured.Specifically, in the present embodiment, the altimeter 6 uses height dial gauge.
Further, the bottom of the frame 1 is provided with some adjustable seats 14, can the regulation of according to circumstances adaptability can
Adjust the height of bearing 14.
Above concrete structure and sized data are that preferred embodiment of the present utility model is illustrated, but this reality
The embodiment is not limited to new creation, those skilled in the art are in the premise without prejudice to the utility model spirit
A variety of equivalent variations or replacement can be also made down, and these equivalent deformations or replacement are all contained in the application claim and limited
In fixed scope.
Claims (9)
1. a kind of heat conduction coefficient tester, including frame (1), it is characterised in that：Measuring unit is provided with the frame (1)
(2) and the lower measuring unit (3) that is arranged at immediately below measuring unit (2), the upper measuring unit (2) and/or lower measurement are single
First (3) are slidably arranged in frame (1), the upper measuring unit (2) be disposed with from top to bottom heated at constant temperature source (21),
The first thermally conductive sheet (22) being bonded with heated at constant temperature source (21), the lower measuring unit (3) be disposed with from top to bottom to
The mounting groove (31) of part to be measured, the second thermally conductive sheet (32) are installed, are bonded with second thermally conductive sheet (32) and thermal conductivity factor known to
Standard component (33), the 3rd thermally conductive sheet (34) that is bonded with the standard component (33), the mounting groove (31), the second thermally conductive sheet
(32), standard component (33) is identical with the 3rd thermally conductive sheet (34) cross section, first thermally conductive sheet (22), the second thermally conductive sheet (32) and
Temperature sensor is provided with 3rd thermally conductive sheet (34), the lower measuring unit (3), which is wrapped circumferentially around, is provided with thermal insulation layer (4).
A kind of 2. heat conduction coefficient tester according to claim 1, it is characterised in that：The heated at constant temperature source (21) is electrically connected
Controller is connected to, the controller can adjust the temperature of the heated at constant temperature source (21).
A kind of 3. heat conduction coefficient tester according to claim 1, it is characterised in that：The lower measuring unit (3) passes through
Some support columns are fixed in frame.
A kind of 4. heat conduction coefficient tester according to claim 1, it is characterised in that：The frame (1) if on be fixed with
The dry lead (11) being vertically arranged, the lead (11) are set with the installing plate that can slide up and down (12), the upper measurement
Unit (2) is fixed on the lower surface of the installing plate (12).
A kind of 5. heat conduction coefficient tester according to claim 4, it is characterised in that：The upper surface of the installing plate (12)
The drive device (5) of its up and down action of driving is connected with, the drive device (5) is fixed in frame (1).
A kind of 6. heat conduction coefficient tester according to claim 5, it is characterised in that：Frame (1) top is provided with
Fixed plate (13), the drive device (5) are fixed in fixed plate (13).
A kind of 7. heat conduction coefficient tester according to claim 5, it is characterised in that：The drive device (5) is cylinder,
The cylinder stroke is adjustable.
A kind of 8. heat conduction coefficient tester according to claim 4, it is characterised in that：Fixation is set on the installing plate (12)
Altimeter (6) is equipped with, location-plate (7) is fixedly installed on the lead (11).
A kind of 9. heat conduction coefficient tester according to claim 1, it is characterised in that：The bottom of the frame (1) is set
There are some adjustable seats (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720477826.6U CN206990483U (en) | 2017-04-28 | 2017-04-28 | A kind of heat conduction coefficient tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720477826.6U CN206990483U (en) | 2017-04-28 | 2017-04-28 | A kind of heat conduction coefficient tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206990483U true CN206990483U (en) | 2018-02-09 |
Family
ID=61392221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720477826.6U Expired - Fee Related CN206990483U (en) | 2017-04-28 | 2017-04-28 | A kind of heat conduction coefficient tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206990483U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030553A (en) * | 2018-07-19 | 2018-12-18 | 芜湖籁余新能源科技有限公司 | A kind of material thermal conductivity detector support device |
| CN109507229A (en) * | 2018-12-12 | 2019-03-22 | 上海卫星装备研究所 | Thin plate thin-film material heat conductivity measuring device and measurement method |
| CN114043393A (en) * | 2021-11-10 | 2022-02-15 | 首都航天机械有限公司 | Small-sized part comparison detection clamping device and method |
-
2017
- 2017-04-28 CN CN201720477826.6U patent/CN206990483U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030553A (en) * | 2018-07-19 | 2018-12-18 | 芜湖籁余新能源科技有限公司 | A kind of material thermal conductivity detector support device |
| CN109507229A (en) * | 2018-12-12 | 2019-03-22 | 上海卫星装备研究所 | Thin plate thin-film material heat conductivity measuring device and measurement method |
| CN114043393A (en) * | 2021-11-10 | 2022-02-15 | 首都航天机械有限公司 | Small-sized part comparison detection clamping device and method |
| CN114043393B (en) * | 2021-11-10 | 2023-08-11 | 首都航天机械有限公司 | Small part comparison detection clamping device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 Termination date: 20200428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |