WO2015186330A1 - 熱流分布測定装置 - Google Patents
熱流分布測定装置 Download PDFInfo
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- WO2015186330A1 WO2015186330A1 PCT/JP2015/002742 JP2015002742W WO2015186330A1 WO 2015186330 A1 WO2015186330 A1 WO 2015186330A1 JP 2015002742 W JP2015002742 W JP 2015002742W WO 2015186330 A1 WO2015186330 A1 WO 2015186330A1
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- Prior art keywords
- heat flow
- flow distribution
- sensor module
- flow sensor
- multilayer substrate
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- 238000009826 distribution Methods 0.000 title claims abstract description 101
- 238000005259 measurement Methods 0.000 title claims abstract description 53
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/18—Investigating or analyzing materials by the use of thermal means by investigating thermal conductivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K17/00—Measuring quantity of heat
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/01—Manufacture or treatment
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
- H10N10/17—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the structure or configuration of the cell or thermocouple forming the device
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N19/00—Integrated devices, or assemblies of multiple devices, comprising at least one thermoelectric or thermomagnetic element covered by groups H10N10/00 - H10N15/00
- H10N19/101—Multiple thermocouples connected in a cascade arrangement
Definitions
- the present disclosure relates to a heat flow distribution measuring apparatus.
- thermoelectric conversion element a thermoelectric conversion element. Specifically, a plurality of through holes are formed in the insulating base material, and first and second conductive metals of different metal materials are embedded in the plurality of through holes, and the first and second conductive metals are They are alternately connected in series.
- heat energy heat flow
- heat radiation distribution of a heat sink provided on a printed wiring board or the like.
- thermography Although there is a method of measuring the heat distribution using a thermography device, the surface temperature distribution that can be measured by the infrared wavelength can be measured by the thermography. Since the surface temperature distribution is not a heat flow distribution, in order to convert the surface temperature distribution into the heat flow distribution, it is necessary to analyze various factors in the calculation. For this reason, even with this method, it is difficult to measure the heat flow distribution with high accuracy.
- This disclosure is intended to provide a heat flow distribution measuring device capable of measuring heat flow distribution with high accuracy.
- the heat flow distribution measuring device includes a multilayer board in which a plurality of insulating layers made of a thermoplastic resin are stacked, one side having the other side and the other side, and the multilayer board.
- a sensor module having a plurality of heat flow sensor units formed therein is provided.
- Each of the plurality of heat flow sensor units is configured by an electrically independent thermoelectric conversion element, and when the sensor module is arranged with one surface facing the measurement object of the heat flow distribution, each thermoelectric conversion element An electrical output corresponding to the heat flow passing through the inside of the multilayer substrate in a direction perpendicular to the one surface is generated.
- the calculation unit that calculates the heat flow distribution based on the electrical output generated in each of the plurality of heat flow sensor units. Is provided.
- thermoelectric conversion elements constituting each heat flow sensor unit are formed inside one multilayer substrate, the same manufacturing the multilayer substrate is the same. Manufactured in the manufacturing process. For this reason, the individual performance difference of each thermoelectric conversion element can be suppressed small compared with the case where a plurality of heat flow sensors are manufactured separately.
- the heat flow distribution measuring device includes a plurality of insulating layers stacked, one multilayer substrate having one surface and the other surface opposite to the one surface, and a plurality of heat flows formed inside the multilayer substrate.
- a sensor module having a sensor unit is provided.
- Each of the plurality of heat flow sensor units is configured by an electrically independent thermoelectric conversion element, and when the sensor module is arranged with one surface facing the measurement object of the heat flow distribution, each thermoelectric conversion element Then, an electrical output corresponding to the heat flow passing through the inside of the multilayer substrate in a direction from one side to the other side of the one side and the other side is generated.
- the heat flow distribution is measured using a plurality of heat flow sensors manufactured separately for the same reason as the heat flow distribution measuring device according to the first and second aspects. Compared to the case, the heat flow distribution can be measured with high accuracy.
- FIG. 1 is a schematic diagram showing a configuration of a heat flow distribution measuring apparatus in the first embodiment.
- FIG. 2 is a plan view of the heat flow distribution measuring apparatus in the first embodiment
- FIG. 3 is a side view of the heat flow distribution measuring device in FIG.
- FIG. 4 is a plan view of one heat flow sensor unit in the sensor module in FIG.
- FIG. 5 is a cross-sectional view taken along line VV in FIG. 6 is a cross-sectional view taken along line VI-VI in FIG.
- FIG. 7 is a plan view in which the surface protection member of the sensor module in FIG. 1 is omitted, FIG.
- FIG. 8 is an enlarged view of region VIII in FIG.
- FIGS. 9A to 9H are cross-sectional views for explaining the manufacturing process of the sensor module of the first embodiment.
- FIG. 10 is a diagram illustrating an example of a heat flow distribution image displayed on the display device of the heat flow distribution measurement device according to the first embodiment.
- FIG. 11 is a plan view of the sensor module in the second embodiment
- FIG. 12 is a plan view of a heat flow distribution measuring apparatus in the second embodiment
- 13 is a side view of the heat flow distribution measuring device in FIG. 12 as viewed from the direction of arrow XIII.
- FIG. 14 is a plan view of a sensor module according to the third embodiment.
- FIG. 15 is a plan view of a sensor module according to the fourth embodiment.
- FIG. 16 is a side view of the heat flow distribution measuring apparatus in the fifth embodiment
- FIG. 17 is a side view of the heat flow distribution measuring apparatus according to the sixth embodiment.
- the heat flow distribution measuring device 1 of this embodiment includes a sensor module 2, an electronic control device 3, and a display device 4.
- the sensor module 2 is formed by integrating a plurality of heat flow sensor units 10 for measuring heat flow.
- the sensor module 2 has a flat plate shape having one surface 2a (first surface) and the other surface 2b (second surface) on the opposite side (see FIG. 3).
- the heat flow sensor units 10 are arranged in a matrix in a direction parallel to the one surface 2a.
- One square indicated by a broken line in FIG. 1 indicates a portion functioning as one heat flow sensor unit 10.
- the plurality of heat flow sensor units 10 have the same length in one direction and the other direction perpendicular thereto.
- the plurality of heat flow sensor units 10 are arranged in order in one direction and the other direction, and the positions of the heat flow sensor units 10 facing each other in the adjacent rows are the same.
- the plurality of heat flow sensor units 10 are electrically independent from each other, and are connected to the electronic control unit 3 through wiring. As will be described later, the heat flow sensor unit 10 is an area where thermoelectric conversion elements connected in series are formed in one multilayer substrate.
- the electronic control unit 3 functions as a calculation unit that calculates the heat flow distribution.
- the electronic control device 3 is constituted by, for example, a microcomputer, a memory as storage means, and its peripheral circuits, and performs predetermined arithmetic processing according to a preset program.
- the electronic control device 3 displays the heat flow distribution on the display device 4 as a two-dimensional image by calculating the heat flow distribution of the measurement object based on the detection result of the heat flow by the plurality of heat flow sensor units 10 and performing image processing. .
- the display device 4 displays a two-dimensional image of the heat flow distribution.
- a general image display device can be used.
- the heat flow distribution measuring apparatus 1 includes a sensor head 21 in which the sensor module 2 is installed, a column 22 that supports the sensor head 21, and a stage 23 in which a measurement object 31 is installed. It has.
- the sensor module 2 is installed on the lower surface of the sensor head 21. For this reason, the other surface 2 b of the sensor module 2 is fixed to the sensor head 21, and the one surface 2 a of the sensor module 2 faces the measurement object 31.
- the support column 22 has a mechanism capable of adjusting the height, and the distance between the sensor module 2 and the measurement object 31 can be adjusted.
- the sensor module 2 is obtained by forming a plurality of heat flow sensor units 10 having the same internal structure on one multilayer substrate. For this reason, the structure of the one heat flow sensor part 10 is demonstrated below.
- one heat flow sensor unit 10 includes an insulating base material 100, an insulating layer 110, a surface protection member 115, and a back surface protection member 120 which are laminated and integrated. Inside, the first and second interlayer connection members 130 and 140 are alternately connected in series.
- FIG. 4 is a plan view of one heat flow sensor unit 10, the surface protection member 115 and the insulating layer 110 are omitted for easy understanding. 4 is not a cross-sectional view, but the first and second interlayer connecting members 130 and 140 are hatched for easy understanding.
- the insulating substrate 100 is made of a thermoplastic resin film typified by polyether ether ketone (PEEK), polyether imide (PEI), liquid crystal polymer (LCP), and the like.
- a plurality of first and second via holes 101 and 102 penetrating in the thickness direction are formed in a staggered pattern so as to alternate.
- the first and second via holes 101 and 102 are through holes penetrating from one surface 100 a to the other surface 100 b of the insulating base material 100.
- the first and second via holes 101 and 102 of the present embodiment have a cylindrical shape with a constant diameter from the front surface 100a to the back surface 100b, but the diameter decreases from the front surface 100a to the back surface 100b. It may be a tapered shape. Moreover, it may be made into the taper shape where a diameter becomes small toward the surface 100a from the back surface 100b, and you may be made into the square cylinder shape.
- a first interlayer connection member 130 is disposed in the first via hole 101, and a second interlayer connection member 140 is disposed in the second via hole 102.
- the first and second interlayer connection members 130 and 140 are alternately arranged on the insulating base material 100.
- the number, the diameter, the interval, and the like of the first and second via holes 101 and 102 are set.
- the density of the first and second interlayer connection members 130 and 140 can be increased.
- the electromotive force generated in the first and second interlayer connecting members 130 and 140 alternately connected in series that is, the voltage can be increased, and the sensitivity of the heat flow sensor unit 10 can be increased.
- the first and second interlayer connection members 130 and 140 are first and second conductors made of different conductors so as to exhibit the Seebeck effect.
- the conductor is a metal or a semiconductor.
- the first interlayer connection member 130 is a metal compound obtained by solid-phase sintering so that Bi-Sb-Te alloy powder constituting the P-type maintains a crystal structure of a plurality of metal atoms before sintering. Composed.
- the second interlayer connecting member 140 is made of a metal compound obtained by solid-phase sintering so that Bi-Te alloy powder constituting N-type maintains the crystal structure of a plurality of metal atoms before sintering.
- the metal forming the first and second interlayer connection members 130 and 140 is a sintered alloy obtained by sintering a plurality of metal atoms while maintaining the crystal structure of the metal atoms. Thereby, the electromotive force generated in the first and second interlayer connection members 130 and 140 alternately connected in series can be increased, and the heat flow sensor unit 10 can be highly sensitive.
- the insulating layer 110 is disposed on the surface 100 a of the insulating base material 100.
- the insulating layer 110 is composed of a thermoplastic resin film typified by polyether ether ketone (PEEK), polyether imide (PEI), liquid crystal polymer (LCP), and the like.
- the insulating layer 110 is formed such that a plurality of surface patterns 111 in which a copper foil or the like is patterned are separated from each other on the one surface 110a side facing the insulating substrate 100. Each surface pattern 111 is appropriately electrically connected to the first and second interlayer connection members 130 and 140, respectively.
- first and second interlayer connection members 130 and 140 are set as one set 150
- the first and second of each set 150 are connected to the same surface pattern 111. That is, the first and second interlayer connection members 130 and 140 of each set 150 are electrically connected via the surface pattern 111.
- one first interlayer connection member 130 and one second interlayer connection member 140 that are adjacent along one direction (left and right direction in FIG. 5) form one set 150.
- the back surface protection member 120 is disposed on the back surface 100b of the insulating base material 100.
- the back surface protection member 120 is made of a thermoplastic resin film typified by polyetheretherketone (PEEK), polyetherimide (PEI), liquid crystal polymer (LCP), or the like.
- a plurality of back surface patterns 121 in which a copper foil or the like is patterned are formed on the back surface protection member 120 so as to be separated from each other on the one surface 120 a side facing the insulating substrate 100.
- Each back pattern 121 is appropriately electrically connected to the first and second interlayer connection members 130 and 140, respectively.
- the first interlayer connection member 130 of one set 150 and the second interlayer connection member 140 of the other set 150 are the same back surface. It is connected to the pattern 121. That is, the first and second interlayer connection members 130 and 140 are electrically connected via the same back surface pattern 121 across the set 150.
- the first adjacent to each other along the other direction (left and right direction in FIG. 4, left and right direction in FIG. 6) orthogonal to one direction.
- the second interlayer connection members 130 and 140 are connected to the same back surface pattern 121.
- each set 150 is connected in series, and is arranged in the multilayer substrate so that the one connected in one direction (up and down direction in FIG. 4) is repeatedly folded.
- a pair of the first and second interlayer connecting members 130 and 140 connected to each other constitute one thermoelectric conversion element. Therefore, one heat flow sensor unit 10 includes a plurality of thermoelectric conversion elements connected in series.
- the plurality of heat flow sensor units 10 are electrically independent from each other, and are electrically connected to the electronic control unit 3 for each heat flow sensor unit 10.
- a plurality of thermoelectric conversion elements electrically connected in series constituting one heat flow sensor unit 10 are referred to as electrically independent thermoelectric conversion elements.
- a surface protection member 115 is disposed on the other surface 110b of the insulating layer 110.
- the surface protection member 115 is composed of a thermoplastic resin film typified by polyetheretherketone (PEEK), polyetherimide (PEI), liquid crystal polymer (LCP), or the like.
- PEEK polyetheretherketone
- PEI polyetherimide
- LCP liquid crystal polymer
- the surface protection member 115 has a plurality of wiring patterns 116 in which a copper foil or the like is patterned on the one surface 115a side facing the insulating layer 110 side.
- the wiring pattern 116 is formed in the end portion of the first and second interlayer connection members 130 and 140 connected in series as described above and the interlayer connection member formed on the insulating layer 110 in one heat flow sensor unit 10. It is electrically connected via 117.
- the plurality of wiring patterns 116 extend from the position of each heat flow sensor unit 10 to the edge of the sensor module 2 as shown in FIGS. Thereby, two wires are formed from one heat flow sensor unit 10 to the edge of the sensor module 2.
- FIG. 7 is a plan view of the sensor module 2 in which the surface protection member 115 is omitted. In order to facilitate understanding, a portion that functions as a connection portion of the wiring pattern 116 is hatched. As shown in FIG. 6, a part of the wiring pattern 116 is exposed at the edge of the sensor module 2. The exposed portion of the wiring pattern 116 constitutes a connection terminal for connecting each heat flow sensor unit 10 and the electronic control unit 3.
- the wiring pattern 116 connected to each heat flow sensor unit 10 is defined as a layer in which the first and second interlayer connection members 130 and 140, the front surface pattern 111, and the back surface pattern 121 are formed. They are formed in different layers (see FIG. 7).
- a space for arranging wiring between adjacent heat flow sensors is required when a plurality of heat flow sensors are attached to the measurement object.
- a space for arranging the wiring between the adjacent heat flow sensors is not necessary, so that the plurality of heat flow sensor units 10 can be densely arranged.
- thermoelectric conversion element constituting one heat flow sensor unit 10
- the first and second interlayer connection members 130 and 140 embedded in the plurality of first and second via holes 101 and 102 are alternately connected in series. It is a thing.
- the 1st, 2nd interlayer connection members 130 and 140 which comprise each of the several heat flow sensor part 10 are formed in the same insulating base material 100.
- the plurality of heat flow sensor units 10 each output a sensor signal (electromotive force) corresponding to the temperature difference between both surfaces of the multilayer substrate to the electronic control unit 3.
- a sensor signal electromotive force
- the electromotive force generated in the first and second interlayer connection members 130 and 140 alternately connected in series changes.
- the heat flow or heat flux passing through the heat flow sensor unit 10 can be calculated from the electromotive force generated in the heat flow sensor unit 10.
- 9A to 9H one heat flow sensor unit 10 is shown and corresponds to FIG.
- an insulating base material 100 is prepared, and a plurality of first via holes 101 are formed by a drill, a laser, or the like.
- the first conductive paste 131 is filled in each first via hole 101.
- a method (apparatus) for filling the first via hole 101 with the first conductive paste 131 the method (apparatus) described in Japanese Patent Application No. 2010-50356 (Japanese Patent Laid-Open No. 2011-187619) by the present applicant is used. Adopt it.
- the insulating base material 100 is arranged on a holding table (not shown) with the suction paper 160 therebetween so that the back surface 100b faces the suction paper 160. Then, the first conductive paste 131 is filled into the first via hole 101 while the first conductive paste 131 is melted. As a result, most of the organic solvent of the first conductive paste 131 is adsorbed by the adsorption paper 160, and the alloy powder is placed in close contact with the first via hole 101.
- the adsorbing paper 160 may be made of a material that can absorb the organic solvent of the first conductive paste 131, and general high-quality paper or the like is used.
- the first conductive paste 131 is a paste obtained by adding an organic solvent such as paraffin having a melting point of 43 ° C. to a powder of Bi—Sb—Te alloy in which metal atoms maintain a predetermined crystal structure. Used. For this reason, when the first conductive paste 131 is filled, the surface 100a of the insulating substrate 100 is heated to about 43 ° C.
- a plurality of second via holes 102 are formed in the insulating base material 100 by a drill, a laser, or the like. As described above, the second via holes 102 are formed alternately with the first via holes 101 so as to form a staggered pattern together with the first via holes 101.
- the second conductive paste 141 is filled in each second via hole 102. This step can be performed in the same step as in FIG.
- the insulating substrate 100 is disposed again on the holding table (not shown) via the suction paper 160 so that the back surface 100b faces the suction paper 160, and then the second conductive paste 141 is filled in the second via hole 102. To do. As a result, most of the organic solvent of the second conductive paste 141 is adsorbed by the adsorption paper 160, and the alloy powder is placed in close contact with the second via hole 102.
- the second conductive paste 141 is a Bi-Te alloy powder in which metal atoms different from the metal atoms constituting the first conductive paste 131 maintain a predetermined crystal structure, and an organic solvent such as terpine having a melting point of room temperature. A paste made by adding is used. That is, the organic solvent constituting the second conductive paste 141 has a lower melting point than the organic solvent constituting the first conductive paste 131. And when filling the 2nd conductive paste 141, it is performed in the state by which the surface 100a of the insulating base material 100 was hold
- the state in which the organic solvent contained in the first conductive paste 131 is solidified means that the organic solvent remaining in the first via hole 101 without being adsorbed by the adsorption paper 160 in the process of FIG. 9B. Is a solidified state.
- the insulating layer 110 and the back surface protection member 120 on the one surface 110a, 120a facing the insulating substrate 100 are formed.
- a copper foil or the like is formed.
- an insulating layer 110 in which a plurality of surface patterns 111 spaced apart from each other and a back surface protection member 120 in which a plurality of back surface patterns 121 spaced apart from each other are formed are prepared.
- a surface protection member 115 on which a plurality of wiring patterns 116 are formed is prepared.
- the back surface protection member 120, the insulating base material 100, the insulating layer 110, and the surface protection member 115 are sequentially stacked to form a stacked body 170.
- the laminate 170 is disposed between a pair of press plates (not shown), and is pressurized while being heated in a vacuum state from the upper and lower surfaces in the lamination direction. Integrate. Specifically, the first and second conductive pastes 131 and 141 are solid-phase sintered to form the first and second interlayer connection members 130 and 140, and the first and second interlayer connection members 130 and 140 are formed. The laminate 170 is integrated by applying pressure while heating so that the front surface pattern 111 and the back surface pattern 121 are connected.
- a cushioning material such as rock wool paper may be disposed between the laminate 170 and the press plate. As described above, the sensor module 2 is manufactured.
- the measurement object 31 is placed on the stage 23, and the measurement object 31 is opposed to the one surface 2a of the sensor module 2.
- the height of the sensor head 21 is adjusted so that the sensor module 2 is in contact with or not in contact with the measurement object 31.
- the electronic control device 3 calculates the heat flow distribution based on the electromotive force of each heat flow sensor unit 10, whereby the heat flow distribution of the measurement object 31 is obtained. Furthermore, the electronic control device 3 performs image processing and displays a two-dimensional image of the heat flow distribution on the display device 4, whereby the heat flow distribution of the measurement object 31 can be confirmed with the two-dimensional image. For example, as shown in FIG. 10, a heat flow distribution image 4 a indicating the magnitude of the heat flow from the region corresponding to the measurement object 31 is displayed on the display device 4.
- one heat flow sensor unit 10 corresponds to one pixel (one square in FIG. 10) which is the minimum unit of the heat flow distribution image 4a.
- the heat flow distribution measuring apparatus 1 of the present embodiment uses the sensor module 2 in which a plurality of heat flow sensor units 10 are formed inside one multilayer substrate. Since the thermoelectric conversion elements constituting each heat flow sensor unit 10, that is, the first and second interlayer connecting members 130 and 140 are formed inside one multilayer substrate, the same manufacturing for manufacturing the multilayer substrate is performed. Manufactured in a process. For this reason, the individual performance difference of each thermoelectric conversion element can be suppressed small compared with the case where a plurality of heat flow sensors are manufactured separately.
- the heat flow distribution measuring apparatus 1 of the present embodiment it is possible to measure the heat flow distribution with higher accuracy than when measuring the heat flow distribution using a plurality of heat flow sensors manufactured separately. .
- the heat flow distribution measuring apparatus 1 of the present embodiment can measure the heat flow distribution in a state where the sensor module 2 is in contact with the measurement object 31 or in a non-contact state.
- the heat flow passing through one heat flow sensor unit 10 is obtained, and the heat flow distribution per area of one heat flow sensor unit 10 is measured as the heat flow distribution.
- the heat flow sensor unit 10 is measured.
- the distribution of the heat flux for each may be measured.
- the heat flow is an amount of heat energy flowing per unit time, and W is used as a unit.
- the heat flux is the amount of heat that crosses the unit area per unit time, and W / m 2 is used as the unit.
- a plurality of heat flow sensor units 10 are arranged in a row in one direction D1, and a sensor module 200 having a shape extending long in one direction D1 is used. .
- This sensor module 200 is obtained by changing the number of the plurality of heat flow sensor units 10 with respect to the sensor module 2 of the first embodiment.
- the internal structure and manufacturing method of the sensor module 200 are the same as those in the first embodiment.
- each heat flow sensor unit 10 of the sensor module 200 is connected to the electronic control unit 3 via wiring, as in the first embodiment.
- the heat flow distribution measuring apparatus 1 of this embodiment includes a sensor head 21, a uniaxial moving unit 24, and a stage 23.
- the sensor head 21 of the present embodiment has a shape that extends long in one direction D1.
- the sensor module 200 is installed on the lower surface of the sensor head 21 such that the longitudinal direction of the sensor head 21 coincides with the longitudinal direction D1 of the sensor module 2. For this reason, the other surface 200 b of the sensor module 200 is fixed to the sensor head 21, and the one surface 200 a of the sensor module 200 faces the measurement object 31.
- the uniaxial moving unit 24 is a moving device that moves the sensor head 21 in the uniaxial direction.
- the moving direction D2 of the sensor head 21 is a direction perpendicular to the longitudinal direction D1 of the sensor module 2.
- the uniaxial moving unit 24 a well-known mechanism can be adopted.
- the movement of the uniaxial moving unit 24 is controlled by the electronic control unit 3.
- the electronic control unit 3 can acquire position information of the sensor head 21.
- a sensor (not shown) for acquiring position information of the sensor head 21 is attached to the uniaxial moving unit 24, and the electronic control unit 3 determines the position of the sensor head 21 based on the sensor signal from this sensor. Get information.
- the measurement object 31 is placed on the stage 23, and the measurement object 31 is opposed to the one surface 200a of the sensor module 200.
- the height of the sensor head 21 is adjusted so that the sensor module 200 is not in contact with the measurement object 31.
- the sensor head 21 is moved when measuring the heat flow distribution.
- the sensor module 200 moves on the surface of the measurement object 31.
- the heat flow from the measurement object 31 or the heat flow toward the measurement object 31 passes through the sensor module 200 in a direction perpendicular to the one surface 200a and the other surface 200b of the sensor module 200, thereby a plurality of heat flow sensor units.
- the electromotive force generated at 10 is output to the electronic control unit 3.
- the electronic control unit 3 calculates the heat flow distribution based on the electromotive force of each heat flow sensor unit 10 and the positional information of the sensor head 21 when the electromotive force is output. Thereby, similarly to 1st Embodiment, the heat flow distribution of the measuring object 31 is obtained.
- the sensor module 200 in which the plurality of heat flow sensor units 10 are arranged in a row is used.
- the plurality of heat flow sensor units 10 are arranged in two rows.
- the sensor module 201 is used.
- the positions of the heat flow sensor units 10 facing each other in adjacent rows are shifted by a predetermined distance in one direction D1 that is the arrangement direction of the plurality of heat flow sensor units 10 in one row.
- the predetermined distance is a length L1 that is 1 ⁇ 2 of the width of one heat flow sensor unit 10.
- the heat flow distribution is measured while moving in a direction perpendicular to the one direction D1.
- the heat flow distribution can be measured in the same manner as when the width of one heat flow sensor unit 10 is set to the predetermined distance L1. For this reason, according to the present embodiment, the resolution of the heat flow distribution measurement can be increased without reducing the area of one heat flow sensor unit 10. That is, one pixel of the heat flow distribution image 4a displayed on the display device 4 can be reduced.
- This embodiment uses a sensor module 202 in which a plurality of heat flow sensor units 10 are arranged in three rows as shown in FIG. In the sensor module 202, adjacent rows are arranged with a predetermined distance shifted as in the second embodiment. In the present embodiment, this predetermined distance is set to a length L2 that is 1/3 of the width of one heat flow sensor unit 10. Thus, the resolution can be further increased by increasing the number of columns and reducing the predetermined distance.
- a heat medium flow path 25 is added to the heat flow distribution measuring apparatus 1 of FIG. 3 described in the first embodiment.
- the heat medium flow path 25 is provided inside the sensor head 21.
- a cooling heat medium 26 for cooling the sensor module 2 flows.
- a general coolant such as an antifreeze can be used.
- the heat medium passage 25 is connected to a radiator, a pump, etc. (not shown). As a result, a coolant circulation circuit for circulating a coolant at a predetermined temperature is configured.
- the measurement object 31 determines the heat flow distribution of the heat flow emitted from the measurement object 31 that is a heating element.
- the sensor module 2 is heated and the temperature of the sensor module 2 rises. For this reason, with the passage of time, the heat flow passing through each heat flow sensor unit 10 changes, and the heat flow measurement value of each heat flow sensor unit 10 changes. That is, the heat flow measurement value of each heat flow sensor unit 10 drifts.
- the heat medium flow path 25 through which the cooling heat medium 26 for cooling the sensor module 2 flows is provided on the sensor head 21, that is, the other surface 2b side of the sensor module 2. For this reason, at the time of measuring the heat flow distribution of the heat flow emitted from the measurement object 31 that is a heating element, the other surface 2b of the sensor module 2 is cooled with the cooling liquid by flowing the cooling liquid through the heat medium passage 25. Can do.
- the temperature of the sensor module 2 can be made to be constant, and the heat flow passing through each heat flow sensor unit 10 can be stabilized. As a result, the drift of the heat flow measurement value of each heat flow sensor unit 10 can be suppressed.
- the temperature of the sensor module 2 is measured by a temperature sensor (not shown), and the cooling heat medium 26 in which the electronic control unit 3 flows through the heat medium flow path 25 based on the measured temperature of the sensor module 2. It is preferable to adjust the flow rate of the sensor module 2 so as to keep the temperature of the sensor module 2 constant.
- the heat medium flow path 25 through which the cooling heat medium 26 flows is provided inside the sensor head 21, but instead of the heat medium flow path 25, other cooling bodies such as a heat radiating plate and a heat pipe. May be provided.
- the case where the measurement object 31 is a heating element has been described.
- the measurement object 31 is heated instead of the cooling heat medium 26.
- a heating medium is used.
- the temperature of the sensor module 2 can be made to be constant, and the heat flow passing through each heat flow sensor unit 10 is stabilized. be able to.
- the drift of the heat flow measurement value of each heat flow sensor unit 10 can be suppressed.
- a heating element such as an electric heater may be provided instead of the heat medium flow path 25 through which the heating heat medium flows.
- the heating body 27 is disposed on the surface of the measurement object 31 opposite to the surface on the sensor module 2 side.
- the heating body 27 heats the measuring object 31 and is constituted by an electric heater or the like.
- the measurement object 31 is measured in the state heated by the heating body 27 in the same manner as in the fifth embodiment.
- the heat flow distribution of the heat flow that is released from the heating body 27 and passes through the measurement object 31 it is possible to measure the heat flow distribution of the heat flow that is released from the heating body 27 and passes through the measurement object 31. For this reason, the heat insulation distribution of the measuring object 31 can be accurately measured, and the heat insulating performance of the measuring object 31 can be evaluated.
- the heat flow is calculated based on the electromotive force (voltage value) generated in the heat flow sensor unit, but may be calculated based on the current value instead of the voltage value. In short, the heat flow can be calculated based on an electrical output such as voltage or current generated in the heat flow sensor unit.
- the metal forming the first and second interlayer connecting members 130 and 140 is a Bi—Sb—Te alloy and a Bi—Te alloy, respectively. Also good.
- both of the metals forming the first and second interlayer connection members 130 and 140 were solid-phase sintered sintered alloys, but at least one of them was sintered by solid-phase sintering. It only has to be gold. Thereby, compared with the case where both the metals which form the 1st, 2nd interlayer connection members 130 and 140 are not the sintered metal which carried out solid phase sintering, an electromotive force can be enlarged.
- the multilayer substrate constituting the sensor module is a laminate of a plurality of insulating layers made of a thermoplastic resin, but a plurality of insulation layers other than the thermoplastic resin are laminated. It may be a thing.
- the insulating layer other than the thermoplastic resin include a thermosetting resin.
- the multilayer substrate has a configuration in which the insulating base material 100, the insulating layer 110, the surface protection member 115, and the back surface protection member 120 are stacked.
- a plurality of insulating layers may be stacked.
- the multilayer substrate may have another configuration. That is, the multilayer substrate only needs to have the insulating base material 100 in which the plurality of through holes 101 and 102 are formed as one of the plurality of insulating layers.
- the number of insulating layers arranged on both sides of the insulating substrate 100 can be arbitrarily changed.
- an electromotive force is output from each heat flow sensor unit 10 when the heat flow passes through the sensor module 2 in a direction perpendicular to the one surface 2a and the other surface 2b of the sensor module 2.
- the electromotive force is output from each heat flow sensor unit 10 not only when the heat flow passes through the sensor module 2 in a direction perpendicular to the one surface 2a and the other surface 2b of the sensor module 2.
- an electromotive force is output from each heat flow sensor unit 10. This is the same in each of the embodiments other than the first embodiment.
- an electromotive force is output from each heat flow sensor unit 10.
- the plurality of heat flow sensor units 10 are arranged in a matrix in a direction parallel to the one surface 2a.
- the arrangement direction of the plurality of heat flow sensor units 10 is one surface 2a.
- the direction may not be completely parallel to the surface 2a but may be oblique to the surface 2a.
- the direction along the one surface 2a means a direction completely parallel to the one surface 2a or a direction almost parallel to the one surface 2a.
- the moving direction of the uniaxial moving unit 24 is a direction perpendicular to the one direction D1 in which the plurality of heat flow sensor units 10 are arranged.
- the direction may not be perpendicular to the direction.
- the moving direction of the uniaxial moving unit 24 may be a direction that intersects the one direction D1.
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Abstract
Description
図1に示すように、本実施形態の熱流分布測定装置1は、センサモジュール2と、電子制御装置3と、表示装置4とを備えている。
図11に示すように、本実施形態の熱流分布測定装置1では、複数の熱流センサ部10が一方向D1に一列に配置され、一方向D1に長く延びた形状のセンサモジュール200を用いている。このセンサモジュール200は、第1実施形態のセンサモジュール2に対して、複数の熱流センサ部10の数を変更したものである。センサモジュール200の内部構造および製造方法は第1実施形態と同じである。また、センサモジュール200の各熱流センサ部10は、第1実施形態と同様に、電子制御装置3と配線を介して接続される。
第2実施形態では、複数の熱流センサ部10が一列に配置されたセンサモジュール200を用いたが、本実施形態では、図14に示すように、複数の熱流センサ部10が2列に配置されたセンサモジュール201を用いている。
本実施形態は、図15に示すように、複数の熱流センサ部10が3列に配置されたセンサモジュール202を用いている。このセンサモジュール202も、第2実施形態と同様に、隣り合う列が所定距離ずらして配置されている。本実施形態では、この所定距離を、1つの熱流センサ部10の幅の1/3の長さL2としている。このように、列の数を増やすとともに所定距離を小さくすることで、分解能をより上げることができる。
本実施形態は、図16に示すように、第1実施形態で説明した図3の熱流分布測定装置1に対して、熱媒体流路25を追加したものである。
本実施形態は、図17に示すように、第5実施形態で説明した図16の熱流分布測定装置1において、ステージ23を加熱体27に変更したものである。
本開示は上記した実施形態に限定されるものではなく、下記のように、適宜変更が可能である。
Claims (11)
- 熱可塑性樹脂で構成された絶縁層(100、110、120)が複数積層され、一面(2a、200a)とその反対側の他面(2b、200b)を有する1つの多層基板と、前記多層基板の内部に形成された複数の熱流センサ部(10)とを有するセンサモジュール(2、200、201、202)を備え、
前記複数の熱流センサ部は、それぞれ、電気的に独立した熱電変換素子で構成されており、熱流分布の計測対象物(31)に前記一面を対向させて前記センサモジュールが配置されたときに、それぞれの前記熱電変換素子によって、前記一面に垂直な方向で前記多層基板の内部を通過する熱流に応じた電気的な出力を発生する熱流分布測定装置。 - さらに、前記複数の熱流センサ部のそれぞれで発生した前記出力に基づいて、熱流分布を演算する演算部(3)を備える請求項1に記載の熱流分布測定装置。
- 前記一面に平行な方向において、前記複数の熱流センサ部は一方向に一列もしくは複数列に並んで配置されており、
前記一方向に対して垂直な方向に、前記センサモジュールを移動させる移動装置(24)を備え、
前記演算部は、前記センサモジュールを移動させたときに、前記複数の熱流センサ部のそれぞれで発生した前記出力と、前記出力が発生したときの前記センサモジュールの位置とに基づいて、熱流分布を演算する請求項2に記載の熱流分布測定装置。 - 前記複数の熱流センサ部は一方向に複数列に並んで配置されているとともに、隣り合う列において対向する前記熱流センサ部同士が前記一方向に所定距離(L1、L2)ずらして配置されている請求項3に記載の熱流分布測定装置。
- 前記一面に平行な方向において、前記複数の熱流センサ部はマトリックス状に配列されている請求項1または2に記載の熱流分布測定装置。
- 前記センサモジュールの前記他面側に設けられ、前記センサモジュールを冷却する冷却体(26)または前記センサモジュールを加熱する加熱体を備える請求項1ないし5のいずれか1つに記載の熱流分布測定装置。
- 前記多層基板は、複数の前記絶縁層の1つとしての複数の貫通孔(101、102)が形成された絶縁基材(100)と、前記複数の貫通孔に埋め込まれ、異なる導電体で構成された第1、第2導電体(130、140)とを有し、
前記熱電変換素子は、前記第1、第2導電体(130、140)が交互に直列接続されたものであり、
前記複数の熱流センサ部のそれぞれを構成する前記第1、第2導電体が、同一の前記絶縁基材に形成されている請求項1ないし6のいずれか1つに記載の熱流分布測定装置。 - 絶縁層(100、110、120)が複数積層され、一面(2a、200a)とその反対側の他面(2b、200b)を有する1つの多層基板と、前記多層基板の内部に形成された複数の熱流センサ部(10)とを有するセンサモジュール(2、200、201、202)を備え、
前記複数の熱流センサ部は、それぞれ、電気的に独立した熱電変換素子で構成されており、熱流分布の計測対象物(31)に前記一面を対向させて前記センサモジュールが配置されたときに、それぞれの前記熱電変換素子によって、前記一面と前記他面の一方から他方に向かう方向で前記多層基板の内部を通過する熱流に応じた電気的な出力を発生する熱流分布測定装置。 - さらに、前記複数の熱流センサ部のそれぞれで発生した前記出力に基づいて、熱流分布を演算する演算部(3)を備える請求項8に記載の熱流分布測定装置。
- 前記一面に沿う方向において、前記複数の熱流センサ部が一方向に一列もしくは複数列に並んで配置されており、
前記一方向に対して交差する方向に、前記センサモジュールを移動させる移動装置(24)を備え、
前記演算部は、前記センサモジュールを移動させたときに、前記複数の熱流センサ部のそれぞれで発生した前記出力と、前記出力が発生したときの前記センサモジュールの位置とに基づいて、熱流分布を演算する請求項9に記載の熱流分布測定装置。 - 前記一面に沿う方向において、前記複数の熱流センサ部がマトリックス状に配列されている請求項8または9に記載の熱流分布測定装置。
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- 2015-06-01 EP EP15804038.6A patent/EP3153832B1/en not_active Not-in-force
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI644085B (zh) * | 2016-05-25 | 2018-12-11 | 日商電裝股份有限公司 | 熱流測定裝置 |
JP2019049435A (ja) * | 2017-09-08 | 2019-03-28 | 株式会社デンソー | 回路基板の製造方法および回路基板の検査方法 |
CN109556762A (zh) * | 2018-12-07 | 2019-04-02 | 中国航天空气动力技术研究院 | 一种用于测量凹腔热流分布的探头 |
CN109556762B (zh) * | 2018-12-07 | 2023-08-29 | 中国航天空气动力技术研究院 | 一种用于测量凹腔热流分布的探头 |
Also Published As
Publication number | Publication date |
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TW201602570A (zh) | 2016-01-16 |
KR101833278B1 (ko) | 2018-03-02 |
US10261034B2 (en) | 2019-04-16 |
EP3153832A4 (en) | 2017-06-14 |
JP2016011950A (ja) | 2016-01-21 |
EP3153832A1 (en) | 2017-04-12 |
JP6485206B2 (ja) | 2019-03-20 |
KR20160143851A (ko) | 2016-12-14 |
CN106461471A (zh) | 2017-02-22 |
EP3153832B1 (en) | 2019-02-20 |
TWI583944B (zh) | 2017-05-21 |
US20170082564A1 (en) | 2017-03-23 |
CN106461471B (zh) | 2019-09-27 |
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