WO2019137331A1 - 高温干体温度校验仪 - Google Patents

高温干体温度校验仪 Download PDF

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Publication number
WO2019137331A1
WO2019137331A1 PCT/CN2019/070623 CN2019070623W WO2019137331A1 WO 2019137331 A1 WO2019137331 A1 WO 2019137331A1 CN 2019070623 W CN2019070623 W CN 2019070623W WO 2019137331 A1 WO2019137331 A1 WO 2019137331A1
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WO
WIPO (PCT)
Prior art keywords
high temperature
temperature
instrument
block
dry body
Prior art date
Application number
PCT/CN2019/070623
Other languages
English (en)
French (fr)
Inventor
林建军
李学灿
吴成江
Original Assignee
北京康斯特仪表科技股份有限公司
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
Priority claimed from CN201810019512.0A external-priority patent/CN110017691B/zh
Priority claimed from CN201810019765.8A external-priority patent/CN110017916B/zh
Priority claimed from CN201820033216.1U external-priority patent/CN207866391U/zh
Priority claimed from CN201820031598.4U external-priority patent/CN207675327U/zh
Priority claimed from CN201820032809.6U external-priority patent/CN207675336U/zh
Priority claimed from CN201810019048.5A external-priority patent/CN110017915A/zh
Priority claimed from CN201820032127.5U external-priority patent/CN207675335U/zh
Priority claimed from CN201820032017.9U external-priority patent/CN207865982U/zh
Priority claimed from CN201810018505.9A external-priority patent/CN110017914B/zh
Priority to US16/960,990 priority Critical patent/US11959814B2/en
Priority to EP19737990.2A priority patent/EP3739312B1/en
Application filed by 北京康斯特仪表科技股份有限公司 filed Critical 北京康斯特仪表科技股份有限公司
Publication of WO2019137331A1 publication Critical patent/WO2019137331A1/zh

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K15/00—Testing or calibrating of thermometers
    • G01K15/005—Calibration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K15/00—Testing or calibrating of thermometers
    • G01K15/002—Calibrated temperature sources, temperature standards therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/12—Casings; Linings; Walls; Roofs incorporating cooling arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/0014—Devices for monitoring temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D9/00—Cooling of furnaces or of charges therein
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
    • G01K7/10—Arrangements for compensating for auxiliary variables, e.g. length of lead
    • G01K7/12—Arrangements with respect to the cold junction, e.g. preventing influence of temperature of surrounding air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/0005—Cooling of furnaces the cooling medium being a gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value

Definitions

  • the invention belongs to the technical field of temperature verification, and relates to a temperature calibrator, in particular to a high temperature dry body temperature calibrator.
  • the temperature calibrator is used to calibrate temperature measuring equipment such as thermometers or thermal switches, and is widely used in industrial sites, measuring places and laboratories of various industries, and has a relatively broad market.
  • the high temperature dry body temperature calibrator is used to verify the temperature measuring equipment, and a high temperature furnace body is required.
  • the temperature conditions in the vicinity of it are relatively harsh environmental conditions for other components, so it is necessary to isolate the surrounding environment from other components.
  • a core component it is often required to be debugged and maintained separately during production and use. Existing products are often locked with other components. Once a problem occurs, the whole machine needs to be disassembled. Increased maintenance costs.
  • the object of the present invention is to provide a high-temperature dry body temperature calibrator that is modularly assembled and easy to disassemble.
  • the invention provides a high temperature dry body temperature calibrator for performing temperature verification on a high temperature component to be tested, comprising:
  • the high temperature furnace body (1) and the control panel module (2) are independently assembled on an instrument lower support (5) and located in a cover of an instrument cover (6), and the instrument cover (6) is assembled in the same Above the lower support (5) of the instrument and circumferentially snapped;
  • the system board module (3) is mounted on the side of the instrument housing (6).
  • the high temperature dry body temperature calibrator further comprises a measuring board module (4), the measuring board module (4) is assembled on the instrument housing (6) and connected to the instrument lower support (5), and the measuring board module (4) There is a gap between the control board module (2).
  • the above high temperature dry body temperature calibrator further comprises a guard device (7) disposed on the top of the instrument cover (6), the top guard plate of the guard device (7) is provided with a furnace mouth and an instrument for the high temperature furnace body (1)
  • the hole of the top cover of the outer cover (6) is opposite to the hole for receiving the component to be tested, and its side is open or is a rib having an air outlet.
  • the high temperature furnace body (1) comprises:
  • the thermostatic block (13) and the heat insulating tube (14) are fixed on the base (11), and the heat insulating tube (14) is placed on the periphery of the constant temperature block (13) and cooled at a distance from the thermostatic block (13).
  • the base (11) is provided with a venting hole, and the venting hole communicates with the cooling passage (C1), and the cooling fan (16) communicates with the cooling passage (C1) through the venting hole.
  • the heat insulating cylinder (14) comprises an inner cylinder body (14-1) and an outer cylinder body (14-2) sleeved outside the inner cylinder body (14-1), the inner cylinder body being a closed double layer
  • the structure comprises a hollow insulating barrel formed by the inner wall, the outer wall and the sealing plates at both ends; the inner cylinder body (14-1) is placed outside the thermostatic block (13) at a distance from the thermostatic block (13) to form a cooling passage (C1)
  • the outer cylinder (14-2) is placed on the periphery of the inner cylinder (14-1) and the distance between the two forms a secondary cooling passage (C2), an inner cylinder (14-1) and an outer cylinder (14).
  • the end surface of the fixing heat insulating cylinder (14) of the base (11) is provided with a supporting column mounting hole (11-2) for mounting a supporting column (20) supporting the constant temperature block (13), and the top end of the supporting column (20) is
  • the thermostat block (13) is fixedly connected, and the bottom end of the support column (20) is fixed in the support post mounting hole (11-2); the lower part of the positioning block (15) is provided with an alignment groove (15-3), and the thermostat block ( 13) The upper end of the upper heating rod (12) is clamped in the alignment groove (15-3).
  • the base (11) is a box structure, and a top end surface of the fixed heat insulating tube (14) is provided with a rib bracket (11-1), and a gap region between the ribs communicates with the inner cavity of the base (11), and the rib bracket (11-1) In the shape of a bridge arch, arched from the side to the center, and the support post mounting hole (11-2) is provided on the rib bracket (11-1).
  • a plurality of strip-shaped bosses (11-5) are disposed on the end surface of the fixed heat-insulating cylinder (14) of the base (11), and the outer cylinder body (14-2) is sleeved from the top to the bottom of the strip-shaped boss (11) -5) Outside.
  • a plurality of outer cylinder limiting blocks (11-6) are uniformly or symmetrically disposed between the strip-shaped bosses (11-5), and the outer cylinder limiting blocks (11-6) are located at the outer cylinder body (14-2) Inside or outside.
  • a plurality of bumps (11-3) are disposed on an edge of the rib bracket (11-1), and the inner cylinder (14-1) is sleeved from the top to the bottom of the bump (11-3) and is convex with the bump (11-3) Fixed; a gap is left between the bump (11-3) and the strip boss (11-5), which is matched with the spacing between the outer cylinder and the inner cylinder.
  • the base (11) is provided with a through groove (11-4) communicating with the inner cavity of the base (11) corresponding to the area between the outer cylinder (14-2) and the inner cylinder (14-1), and the through groove ( 11-4) communicating the secondary cooling passage (C2).
  • the above high temperature dry body temperature calibrator further includes:
  • the damper is fixed in the inner cavity of the base of the base (11) and above the cooling fan (16).
  • the base (11) extends to a side with a plane on which one or more vents (11-7) are provided, which communicate with the outside air from the bottom of the high temperature furnace but with the cooling passage (C1) ) not connected.
  • the control board module (2) includes:
  • a trough control board bracket (21) a switching power supply (22) is assembled in the slot of the control board bracket (21), and a control board (24) is mounted on the top opening of the slot of the control board bracket (21) at the switch A partition (23) is installed between the power source (22) and the control board (24).
  • the control board module (2) is further provided with a flow guiding fan (25), and the guiding fan (25) is fixed on the top of the control board module (2) and communicates with the slot body of the control board module (2), and the control board module ( 2)
  • the lower support (5) of the instrument below has a ventilation slot.
  • the system board module (3) includes a touch screen panel (35), a touch screen foam (34), a touch liquid crystal screen (33), a touch liquid crystal screen bracket (32), and a system board (31) that are sequentially fixed from front to back.
  • the measuring board module (4) includes
  • a measuring board (41) having a TC socket member (43) and a plurality of test connection terminals (45);
  • the front panel (42) is fixedly aligned with the measuring board and is provided with a socket hole (44) and a plurality of terminal holes (46) matched with the TC socket component (43) and the test connection terminal (45).
  • the TC socket component (43) is a thermocouple cold junction temperature compensation structure, comprising:
  • the cold junction temperature sensor (01) is mounted on the upper side of any of the shrapnel (02), and the cold end of the thermocouple (05) is placed between the shrapnel (02) and the second soaking block (03) and is closely attached to the shrapnel (02). And the second soaking block (03);
  • the heat capacity of the second heat equalizing block (03) is much larger than the heat capacity of the spring piece (02) and the cold end temperature sensor (01).
  • the elastic piece (02) is an elastic body with small heat capacity and good thermal conductivity, and has an S-shaped structure, and its tail end is fixed to the tail end of the second heat equalizing block (03), and the head end of the elastic piece (02) is raised upward, close to the head.
  • the end portion is freely placed on the upper surface of the second heat equalizing block (03); a thermal conductive paste is disposed between the two second heat equalizing blocks (03).
  • thermocouple cold junction temperature compensation structure further includes:
  • the cap (04) is a square box for accommodating the cold end temperature sensor (01), the shrapnel (02) and the second soaking block (03), and the front end of the cap (04) is provided with two sockets.
  • the socket corresponds to a position between the elastic piece (02) and the second heat equalizing block (03) to insert a cold end of the thermocouple (05);
  • the lead terminal (06) has one end connected to the measuring board (41) and the other end connected to the lead line of the cold end temperature sensor (01) leading from the tail of the cap (04).
  • the cold end temperature sensor (01) mounted on the elastic piece (02) is not provided with a plastic sleeve or a heat insulating glue on the portion which is not in contact with the elastic piece (02); the cold end temperature sensor (01) is bonded to the elastic piece (02) by glue.
  • a shroud is disposed on each side of the position of the elastic piece (02) bonded to the cold end temperature sensor (01).
  • the lower end of the instrument cover (6) is open, and is integrally placed on the lower support (5) of the instrument and is fixedly coupled with the peripheral side of the lower support of the instrument; the measuring plate module (4) is mounted on the side of the instrument cover (6).
  • the system board module (3) is mounted on the side of the instrument cover.
  • a top ventilation groove group (62) is arranged on the top surface of the instrument cover (6) near the side surface; a plurality of ventilation slots are formed in the bottom surface and the side surface of the lower support (5) of the instrument.
  • the instrument cover (6) is made of plastic material.
  • the bottom surface of the lower support (5) of the instrument is provided with a plurality of assembly holes, and the assembly parts horizontally arranged with the high temperature furnace body (1), the control panel module (2), the measuring board module (4) and the instrument housing (6) (9) ) Alignment installation.
  • the control panel module (2) is longitudinally parallel to the high temperature furnace body (1), and adjacent sides thereof are connected and fixed by the furnace body side fitting member (9).
  • the left and right sides of the system board module (3) are respectively connected to the instrument cover (6) by screws, and the top of the measuring board module (4) is fixed by screws to the instrument cover (6).
  • the modules constituting the high-temperature dry body temperature calibrator of the present invention are independent from each other and can be independently disassembled for maintenance and replacement.
  • the base is used to integrate the various parts of the high-temperature furnace body into a module form, which facilitates the disassembly of the high-temperature furnace body in the temperature calibrator;
  • the design of the positioning block and the base support column in the high-temperature furnace body realizes the automatic righting of the constant temperature block, avoiding disassembly and assembly
  • the insulated cylinder is a double-tube structure, and the multi-flow passage realizes the rapid cooling of the furnace body, and the inner cylinder is a closed double-layer structure with light weight and good heat insulation.
  • the control panel module also includes Bluetooth and wifi components for wireless communication. System board touch control for more efficient operation.
  • the design of multiple gas channels in the instrument facilitates the cooling of the furnace body and the heat dissipation of the whole machine.
  • the instrument cover is made of plastic to reduce weight.
  • 1A is a perspective view showing the appearance of a high temperature dry body temperature calibrator of the present invention
  • 1B is a structural exploded view of the high temperature dry body temperature calibrator of the present invention.
  • FIG. 2A is a perspective view of a control panel module of the high temperature dry body temperature calibrator of the present invention.
  • 2B is an exploded view showing the structure of the control board module in the high-temperature dry body temperature calibrator of the present invention
  • 3A is a perspective view of a system board module in the high temperature dry body temperature calibrator of the present invention.
  • 3B is an exploded view showing the structure of the system board module in the high temperature dry body temperature calibrator of the present invention
  • FIG. 4A is a perspective view of a measuring board module in the high temperature dry body temperature calibrator of the present invention.
  • 4B is an exploded view showing the structure of the measuring board module in the high-temperature dry body temperature calibrator of the present invention
  • thermocouple cold junction in the measuring board module is a front view of the temperature compensation structure of the thermocouple cold junction in the measuring board module
  • thermocouple cold junction temperature compensation structure in the measuring board module
  • 4E is a cross-sectional view taken along line A-A of FIG. 4C in the measuring board module;
  • thermocouple cold junction temperature compensation structure 4F is a schematic structural view of a thermocouple cold junction temperature compensation structure and a thermocouple used in the measuring board module;
  • thermocouple cold junction temperature compensation structure in the measuring board module
  • Figure 5-1 is a schematic view showing the installation of the high temperature furnace body in the temperature calibrator and the peripheral components of the present invention
  • Figure 5-2A is a schematic exploded view of the structure of the high temperature furnace body of the present invention.
  • Figure 5-2B is an external view of the high temperature furnace body of the present invention.
  • Figure 5-3 is a schematic view showing the cross-sectional structure and air flow passage of the high temperature furnace body of the present invention.
  • Figure 5-4A is a top view of the base structure in the high temperature furnace body of the present invention.
  • Figure 5-4B is a bottom view of the base structure in the high temperature furnace body of the present invention.
  • 5-5 is a schematic view showing the bottom structure of the positioning block in the high temperature furnace body of the present invention.
  • 5-6 is a top view of the base of the high temperature furnace body of the present invention and the outer cylinder of the heat insulating cylinder;
  • 5-7A is a schematic view showing a specific structure of a damper used in the high temperature furnace body of the present invention.
  • 5-7B is a perspective view showing a specific structure of a damper used in the high temperature furnace body of the present invention.
  • 5-7C is another exploded structural view of the damper used in the high temperature furnace body of the present invention.
  • 5-7D is a perspective view showing still another specific structure of the damper used in the high temperature furnace body of the present invention.
  • FIG. 5-8 are schematic views of multiple gas flow passages in the high temperature furnace body of the present invention.
  • the whole machine part number high temperature furnace body 1, control board module 2, system board module 3, measuring board module 4, instrument lower support 5, instrument cover 6, protection device 7, assembly part 9;
  • Part number of high temperature furnace body 1 see the chapter introduction chapter;
  • control panel module 2 The components in the control panel module 2 are: control board bracket 21, switching power supply 22, partition 23, control board 24, flow guiding fan 25, mounting plate 26;
  • the components in the system board module 3 are: system version 31, touch screen bracket 32, touch liquid crystal screen 33, touch screen foam 34, touch screen panel 35, connection port 36, interface hole 37;
  • measuring board 41 measuring board 41, front panel 42, TC socket component 43, TC socket interface 44, electrical measuring column 45, electrical column perforation 46;
  • the components of the TC socket component 43 are: cold end temperature sensor 01, spring 02, second heat block 03, cap 04, socket 041; thermocouple 05, lead terminal 06, screw 07;
  • the component numbers in the instrument housing 6 are: a side ventilation slot group 61, and an upper ventilation slot group 62.
  • FIG. 1B shows the decomposition structure of the high temperature dry body temperature calibrator, which comprises a high temperature furnace body 1 , control board module 2, system board module 3, measuring board module 4 and instrument lower support 5, instrument cover 6, high temperature furnace body 1, control board module 2 and measuring board module 4 are assembled from the back to the front in the lower part of the instrument
  • the system board module 3 is mounted in front of the instrument housing 6
  • the instrument housing 6 is mounted above the instrument lower support 5
  • the high temperature furnace body 1, the control board module 2 and the measuring board module 4 are housed in the instrument housing 6.
  • a guard 7 is provided at the top of the instrument cover 6. The appearance of the whole machine after assembly is shown in Figure 1A.
  • high temperature furnaces are used to provide a stable temperature environment.
  • the high-temperature furnace body 1 is generally modular in design, and is adjacent to the control panel module 2 and the lower instrument support 5 of the high-temperature dry body temperature calibrator by fixing components 9 (such as using mounting screws) to make the high temperature
  • the furnace body 1 can be easily and quickly disassembled, as shown in Figure 5-1.
  • Base 11 parts number: rib bracket 11-1, support column mounting hole 11-2, bump 11-3, through groove 11-4, strip boss 11-5, outer cylinder limit block 11-6, vent 11-7, positioning pin holes 11-8;
  • Positioning block 15 part number: central hole 15-1, air flow outlet 15-2, alignment groove 15-3;
  • Air valve 17 part number: frame 17-1, blade 17-2, connecting rod 17-3, motor 17-4, motor mounting plate 17-5, mounting hole 17-6, blade crankshaft 17-7, blade shaft 17- 8, motor crankshaft 17-9, limit posts 17-10 and 17-11, hooks 17-12;
  • the damper three 19 component number the support frame 19-1, the sheet windshield 19-2.
  • the high temperature furnace body 1 includes: a base 11 placed at the bottom, a thermostatic block 13 placed on the upper portion of the base, a heating rod 12, and an insulated barrel 14 placed on the periphery of the thermostat block, and Positioning block 15 placed at the top.
  • the heating rod 12 is installed inside the thermostat block 13 and is a heating element of the furnace body;
  • the heat insulating tube 14 is placed at the periphery of the thermostatic block 13 and spaced apart from the thermostatic block;
  • the base 11 is a mounting base of the heat insulating tube 14 and the thermostatic block 13.
  • the positioning block 15 is connected to the upper portion of the heat insulating tube 14 and is aligned with the heating rod 12 in the thermostat block 13 (in conjunction with FIG. 2B).
  • the base 11 is integrally formed as a downwardly open box-like structure, and as a whole, as a mounting base of the heat insulating tube 14 and the thermostat block 13, the box body A cooling fan 16 is installed in the lower cavity.
  • a preferred mode of the furnace body of the present invention is to further provide a damper 17 in the high temperature furnace body 1 for blocking the air flow from below the furnace body (even if the cooling fan 16 is closed), and the damper 17 and the cooling fan 16 are assembled to the casing of the base 11. In the body cavity, the upward direction is the intake direction, and the damper 17 is located above the cooling fan 16.
  • the casing 11 is provided with a guiding and positioning structure for mounting the cooling fan 16 and the damper 17.
  • a plurality of (for example, six) limiting protrusions are formed on the surface of the lower cavity of the base 11.
  • the limiting protrusion is used for limiting the damper 17 during the installation of the damper 17, and can have a guiding function, so that the damper 17 is positioned at a corresponding position in the lower cavity of the base 11 (for example)
  • the position of the damper 17 and the cooling fan 16 is square, and the four corners of the frame have mounting holes, and the base 11 has four threaded holes at corresponding positions inside the base 11
  • the damper 17 and the cooling fan 16 are fixed together in the body cavity of the base 11 by screws.
  • the top end surface of the base 11 of the box-like structure is provided with a rib bracket 11-1.
  • the gap between the ribs communicates with the inner cavity of the box, and a support post mounting hole 11-2 is disposed at the center of the rib bracket 11-1.
  • the support column 20 is mounted, and the support column 20 supports the thermostat block 13.
  • the support post mounting hole 11-2 can be designed to be oblate to secure the support post 20, and the support post 20 is fixedly connected to the lower portion of the thermostat block 13.
  • the rib bracket 11-1 has a bridge arch shape and is arched from the side to the center portion to facilitate supporting and fixing the support column 20, and at the same time, the force of the rib bracket 11-1 can be improved and the deformation thereof can be reduced.
  • the structure of the rib bracket 11-1 is optimized to increase the airflow intensity, increase the airflow passage area, and reduce the air flow resistance.
  • the arching of the center portion also facilitates the distance between the center of the damper 17 and the cooling fan 16 installed at the lower portion of the bracket 11, which is advantageous for reducing the operating temperature of the damper 17, particularly the motor at the center of the cooling fan 16.
  • the rib bracket 11-1 can be provided with various ribs, and various forms need to be provided with support column mounting holes 11-2 on the rib bracket 11-1.
  • Two positioning pin holes 11-8 are horizontally arranged at the middle of the opposite sides of the bottom portion of the furnace body base 11 for guiding and accurately positioning the high temperature furnace body 1 when it is mounted to the lower support 5 of the whole machine.
  • the mounting member 9 of the base 11 and the lower base 5 of the whole instrument can be vertically disposed on both sides of the positioning pin hole 11-8, and the fitting part 9 and the lower bearing 5 of the instrument are horizontally passed through the bottom of the four bases 11. Connection (combined with Figure 5-1).
  • the insulated barrel 14 is divided into a sleeved inner cylinder 14-1 and an outer cylinder 14-2.
  • the inner cylinder 14-1 is a closed double-layer structure, which is composed of an inner wall, an outer wall and a sealing plate at both ends to form a hollow heat insulating cylinder body, and the hollow heat insulating cylinder body can utilize two layers.
  • the static air acts as a heat insulation tape, which not only has the characteristics of light weight and good heat insulation, but also effectively reduces the heat transfer of the thermostat block 13 to the surrounding components, and greatly reduces the temperature of the surrounding components;
  • the outer cylinder 14-2 It is a single-layer plate structure to facilitate rapid heat dissipation.
  • the inner cylinder 14-1 is placed outside the thermostatic block 13 with a spacing
  • the outer cylinder 14-2 is placed outside the inner cylinder 14-1 with a spacing
  • the inner cylinder 14-1 and the outer cylinder 14-2 The bottom portion is fixed to the upper surface of the furnace body base 11, and the top portion is locked by the positioning block 15, and the positioning block 15 leaves an air flow outlet 15-2 (see Figs. 5-5 and Figs. 5-6).
  • the embodiment of the present invention does not limit the specific shape of the positioning block 15, and the locking function can be realized.
  • One or two fixing holes for fixing to the high temperature furnace body 1 can be respectively disposed at both ends of the positioning block 15. As shown in FIG.
  • four strip-shaped bosses 11-5 are disposed on the outer surface of the upper surface of the furnace body base 11, and the four strip-shaped bosses 11-5 have the same length direction for guiding, positioning and fixing heat insulation.
  • the outer cylinder 14-2 of the cylinder 14 and the outer cylinder 14-2 are sleeved from the top to the bottom of the strip-shaped boss 11-5; for better guiding of the outer cylinder 14-2, the furnace can also be placed in the furnace
  • the outer cylinder limiting block 11-6 is disposed in the peripheral connecting line of the four strip-shaped bosses 11-5 on the upper surface of the body base 11, which can define and correct the deformation of the outer cylinder 14-2.
  • the outer cylinder limiting block 11-6 is disposed at an intermediate position between the adjacent two strip-shaped bosses 11-5, and is located at the inner side or the outer side of the outer cylinder 14-2, and is provided with a plurality of outer cylinder limiting blocks 11
  • the side is symmetrically disposed at -6 hours, and one portion may be located inside the outer cylinder 14-2 and the other portion may be located outside.
  • protrusions 11-3 are disposed on the edge of the upper surface rib bracket 11-1 of the furnace body base 11, and a mounting hole is formed on the outer side of each of the protrusions 11-3 for
  • the inner cylinder 14-1 of the heat insulating cylinder 14 is positioned and fixed.
  • the inner cylinder 14-1 is sleeved from the top to the bottom of the bump 11-3, and is fixed by the mounting hole formed by the fixing bolt 11-3.
  • the inner cylinder 14-1 is fixed to the base 11.
  • the projection 11-3 for fixing the positioning inner cylinder 14-1 and the strip boss 11-5 for guiding, positioning, and fixing the outer cylinder 14-2 are separated by a distance from the outer cylinder
  • the spacing between the body 14-2 and the inner cylinder 14-1 is matched.
  • a through slot 11-4 communicating with the lower cavity of the base 1 is opened.
  • the length, the number, and the position in the area of the groove 11-4 are not limited, but it is preferable to provide a plurality of uniforms.
  • the heat insulating tube 14 and the constant temperature block 13 together constitute two independent air passages, wherein the space between the inner side surface of the inner cylinder body 14-1 and the outer side surface of the thermostatic block 13 forms a cooling passage C1, when the furnace body needs to be cooled
  • the lower cooling fan 16 operates to blow a large amount of high-speed cold air through the constant temperature block 13 and the inner wall of the inner cylinder 14-1, and the heat is discharged upward from the air outlet 15-2 of the positioning block 15 via the cooling passage C1.
  • the interval between the outer side surface of the inner cylinder 14-1 and the inner side surface of the outer cylinder body 14-2 forms a secondary cooling passage C2, which is naturally convected by entering the secondary cooling passage C2 via the through groove 11-4 from the air below the furnace body.
  • the inner cylinder 14-1 is further cooled to achieve the purpose of effectively controlling the wall temperature of the outer cylinder 14-2.
  • the schematic diagram of the furnace section and the distribution of the cooling airflow are shown in Figure 5-3.
  • a preferred mode of the present invention is to install the damper 17 in the high temperature furnace body 1 shown in Fig. 5-3.
  • the function of the damper 17 is to cut off the air convection path of the rapid cooling passage C1 around the thermostat block 13 and prevent the influence of the convective air on the temperature field of the thermostat block 13.
  • Any damper structure that can achieve this function can be used in the high temperature furnace body 1 of the present invention.
  • FIGS. 5-7A and 5-7B show a specific structure of the damper 17, which is not limited to other configurations of the damper 17, for example, changing the shape according to the shape of the furnace body, changing the blade form. and many more.
  • the damper 17 shown in Figs. 5-7A and Figs. 5-7B includes a frame 17-1, a plurality of blades 17-2 which are disposed parallel to each other in the frame, a link 17-3 connected to the plurality of blades, and a joint
  • a rod-connected driving device such as an electric motor 17-4 is attached to the frame 17-1.
  • the frame 17-1 is square, and a plurality of through holes facing each other are formed on the opposite side walls thereof to allow the blades 17-2 located between the two side walls to pass through the through holes and then to be mounted on the two One of the two side walls having a through hole extends out of a motor mounting plate 17-5 for mounting the motor 17-4, and the motor mounting plate 17-5 is integral with the frame Molded or fixedly connected.
  • the four corners of the frame 17-1 are formed with mounting holes 17-6 for connection with the bottom of the high temperature furnace body 1.
  • the side length of the square frame matches the bottom frame of the high temperature furnace body 1, the frame 17-1
  • the side length of the frame is 60 mm to 120 mm, so that the damper is matched with the size of the body of the dry body temperature calibrator.
  • the bottom of the high temperature furnace body 1 is square, and the frame of the damper 17-1 is also The square shape has a side length of 92 mm; in another embodiment, as shown in FIGS. 5-7B, hooks 17 are respectively formed on the outer surfaces of one or more of the four side walls of the frame 17-1. -12, for guiding and positioning when the cooling fan 16 is installed.
  • the blade 17-2 is a rectangular thin plate, one end of the blade (one end close to the link 17-3) has a crankshaft 17-7, and the other end of the blade has a blade shaft 17-8, a blade crankshaft 17-7, a blade 17-2 and a blade
  • the shafts 17-8 are integrally formed.
  • the blade shaft 17-8 and the blade crankshaft 17-7 at both ends of each blade 17-2 are respectively engaged into the opposite through holes on the two side walls of the frame 17-1, thereby causing the blade 17-2 to be erected therein. It is described in the frame 17-1 and can be freely rotated.
  • the number of the blades 17-2 is not limited, and in a specific embodiment, the number of the blades is preferably five.
  • the link 17-3 has a plurality of through holes, the number of which is the same as the number of the blades 17-2, and the blade crankshaft 17-7 at one end of the blade is snapped into the through hole of the link.
  • the plurality of blades 17-2 are coupled to the link 17-3 in the same manner, and the movement of the link 17-3 causes the plurality of blades 17-2 to rotate together, so that the plurality of blades 17-2 move in synchronization.
  • the motor 17-4 is mounted on the motor mounting plate 17-5, and one end of the motor crankshaft 17-9 is fixed to the rotating shaft of the motor, and the other end is connected to the connecting rod 17-3.
  • the motor crankshaft 17-9 rotates around the rotating shaft of the motor, drives the connecting rod 17-3 to move, and is further driven by the plurality of blade crankshafts 17-7.
  • the blade 17-2 rotates in synchronism with the motor crankshaft 17-9.
  • damper 218 which includes a support frame 18-1, a plurality of wind deflectors disposed within the support frame, and a drive.
  • the inner edge of the support frame 18-1 is circular, and the windshield is fan-shaped, and can be divided into an alternately distributed fixed wind deflector 18-3 and a movable windshield 18-2, and a plurality of fixed windshields 18- 3 is fixed on the circular inner edge of the support frame 18-1 by its fan-shaped long side, and the plurality of movable windshields 18-2 are uniformly fixed to a central axis 18-5 with the fan-shaped short sides thereof.
  • the driving device includes a motor and a rotating shaft 18-4 connected to the motor, the rotating shaft is coupled to the rotating shaft 18-4 at the center of the movable wind deflector 18-2 and can drive the plurality of movable fan-shaped windshields The plate rotates.
  • the central shaft 18-5 and the rotating shaft 18-4 are coaxially sleeved, and the neutral area between the adjacent fixed wind deflectors 18-3 matches the sector of the movable wind deflector 18-2, and The neutral area between the adjacent movable wind deflectors 18-2 exactly matches the sector of the fixed wind deflector 18-3, and when the sector fixed wind deflector 18-3 and the sector movable wind deflector 18-2 are spliced and mutually In the unobstructed distribution, the damper two 18 is in a closed state, at which point the damper blocks the airflow through itself.
  • a damper of another configuration is provided as a damper 39, which includes a support frame 19-1, a plurality of sheet windshields 19-2 disposed inside the support frame, and a driving device.
  • the support frame 19-1 is square, and the plurality of sheet windshields 19-2 are parallel to each other and their side edges are sequentially connected, for example, hinged, so that the angle of the adjacent sheet windshield 19-2 can be from 0.
  • the degree is changed to 180 degrees to present a tiled state or a folded state.
  • the damper three 19 When closed, the inner opening of the support frame 19-1 is completely covered by the plurality of sheet-shaped wind deflectors 19-2, at which time the damper blocks the airflow through itself.
  • the angle between the plurality of sheet windshields is less than 180, that is, the plurality of sheet wind deflectors 19-2 are folded to one side, the plurality of sheet winds are blocked
  • the plate cannot completely cover the opening inside the support frame 19-1, and the support frame is formed with an opening on one side thereof. According to the opening degree of the opening, the damper 39 is fully or partially opened, and the damper allows the airflow to pass completely or partially through. itself.
  • damper 18 and the damper 19 can be assembled in the high temperature furnace body 1 shown in Figs. 5-3 and 5-4B, and will not be described again.
  • the high temperature furnace body 1 of the present invention is further optimized in the modular design based on the above form:
  • the upper portion of the base of the base 11 extends to a side with a plane on which one or more vents 11-7 are provided.
  • the port communicates with the outside air from the bottom of the furnace but does not communicate with the cooling passage C1.
  • C3 facilitates heat dissipation to reduce the influence of the high temperature furnace body 1 on other components mounted in the instrument, such as the control panel module 2.
  • one or more mounting members 9 may be horizontally disposed on the bottom side of the base of the base 11 so that the base 11 can be fixed to the lower support 5 by the assembly member 9;
  • the outer cylinder 14-2 of the heat insulating cylinder is also used as the outer casing of the high temperature furnace body 1, and the outer cylinder body 14-2 is made of an aluminum profile, and is formed by post-processing, and a plurality of lateral assembling members are provided on one side thereof. 9, for connecting with other module components adjacent thereto, such as the control panel module 2, so that in the compact space of the temperature calibrator, the outer cylinder 14-2 also serves as a support for the control panel module 2, and is convenient Disassembly.
  • the lateral fitting member 9 is preferably disposed on the side in the same direction as the vent 11-7 of the base.
  • the air flow passage C3 can be formed between the assembled high temperature furnace body 1 and the control panel module 2 to facilitate heat dissipation.
  • the positioning block 15 located at the upper portion of the high-temperature furnace body 1 is connected to the outer cylinder 14-2 and is heated by the heating rod 12
  • the block 13 performs the righting: the positioning block 15 has a matching groove 15-3 corresponding to the heating rod 12 at the bottom, and the number and position of the positioning groove 15-3 completely correspond to the number and position of the heating rod 12, so that the assembly is
  • the top of the heating rod 12 in the thermostatic block 13 can just protrude into the corresponding alignment groove 15-3, thereby defining the movement of the heating rod 12 and the thermostatic block 13 in the horizontal direction, realizing the righting of the thermostatic block;
  • the central portion of the 15 is provided with a central hole 15-1, which is coaxially aligned with the thermostat block 13, the soaking block and the middle hole of the top protective plate of the instrument casing; and the precise cooperation of the positioning block 15 with these components ensures precise assurance
  • the position of the thermostatic block 13 and the high temperature furnace body 1 is
  • the high temperature furnace body 1 no longer needs to be connected and positioned with the frame on the whole casing through the other positioning components on the top, and the top of the high temperature furnace body 1 and the outer cover do not contact, thereby disconnecting the furnace body through the top.
  • the heat transfer of the positioning assembly to the outer frame of the cast aluminum of the machine casing effectively reduces the temperature of the outer frame and the outer casing connected thereto.
  • the heat transfer of the high-temperature furnace body to the instrument cover 6 is greatly reduced, and the outer cover of the whole machine can be processed by using a plastic material, which not only reduces the material cost, but also greatly reduces the operator's contact with the metal cover. Possible burns.
  • the present invention further optimizes the auto-rightening function of the thermostat block 1 for the thermostat block 1 : for example, the base 11 and the thermostatic block 13 are mounted using a four-point cylindrical positioning, that is, the support post 20 at the lower portion of the thermostatic block 13
  • the fixing column 20 and the supporting column mounting hole 12-1 on the rib bracket 11-1 are fixed by a cylindrical flattening method (flat groove); at the same time, in the upper part of the thermostat block 13, the lower part of the positioning block 15 is opened.
  • the four alignment grooves 15-3 are nested in the upper ends of the heating bars 12 (four heating bars) on the thermostatic block 13, so that the torsional deviation between the thermostatic block 13 and the base 11 can be effectively controlled.
  • the base processing adopts a die-casting process, and the outer cylinder 14-2 is processed by an extrusion molding process, so that the flatness and parallelism precision of the mounting surface are high.
  • the outer cylinder 14-2 and the base 11 are in an upper and lower mounting form, for example, a threaded connection in the vertical direction, and the seat body 11 on the inner side of the outer cylinder 14-2 has a guiding and limiting structure such as a strip.
  • the boss 11-5, the limit block 11-6 (see Fig. 5-4A and Fig. 5-6), the assembly accuracy of the outer cylinder is basically the same as the machining precision, and the assembly error is eliminated.
  • the present invention has also been carefully designed in terms of the direction of the air flow.
  • a flow between the constant temperature block 13 and the inner cylinder 14-1 is formed by the cooling fan 16 and the damper 17 for controlling the air supply for rapidly cooling the constant temperature block 13.
  • the passage that is, the cooling passage C1
  • a second air flow passage ie, a second stage is formed.
  • the outside air entering the secondary cooling passage C2 can lower the temperature of the inner cylinder 14-1 and the outer cylinder 14-2, and reduce the heat transfer of the high temperature furnace body to the whole machine. See Figure C-8 for the C2 channel.
  • a cooling passage C3 is additionally designed.
  • the cooling passage C3 is a vent 11-7 provided on the side of the furnace body through the side of the base 11, and the heat insulating cylinder is in the high temperature furnace body 1.
  • the beneficial effects of the high temperature furnace body 1 are:
  • the inner cylinder is a closed double-layer structure, and the static air between the two layers is used as the heat insulation belt, which has the characteristics of light weight and good heat insulation.
  • the high temperature furnace body has the function of automatically adjusting the constant temperature block.
  • Modular design makes the high temperature furnace body completely independent of other parts of the product, which can effectively improve the convenience of production and maintenance, and reduce the production and maintenance costs of the product.
  • the high temperature furnace body is more compact and the application is more convenient.
  • the constant temperature block can be automatically adjusted by the structure, which reduces the assembly adjustment process and improves the production efficiency.
  • the control panel module is used to maintain a stable temperature environment of the high temperature furnace body.
  • the control board module 2 is of modular design, as shown in FIG. 2A and FIG. 2B, the control board module 2 includes a slot type control board bracket 21, and the switching power supply 22 (ESP-120-24 switching power supply) is mounted in the control.
  • a control panel 24 on which the control elements and the connection lines are disposed is mounted on the top surface of the slot of the control board bracket 21, and a partition 23 is mounted between the switching power supply 22 and the control board 24, and the switching power supply 22 is mounted on the bottom surface of the slot of the board bracket 21. It can be used to supply power to the control board 2 and the system board 3 at the same time or separately.
  • the partition 23 can block the heat from affecting the control board, and the partition 23 is also convenient.
  • the air flow flows upward by the flow guiding fan 25 (described later).
  • the control board bracket 21, the switching power supply 22, the partition 23, and the control board 24 are assembled to form an integrated control board module 2.
  • one or more horizontally arranged mounting members 9 are provided at the lowermost end of the control panel bracket 21, and the mounting holes of the mounting member 9 and the mounting holes on the lower support 5 of the instrument are provided. Positioned to fix the control board module 2 to the lower support 5 of the instrument by mounting screws; further, a plurality of mounting members 9 are extended on the bottom surface of the control plate bracket 21 to align with the assembly parts 9 of the adjacent high-temperature furnace To fix the control board module 2 to the high temperature furnace body 1 by means of mounting screws.
  • control panel module 2 further includes a flow guiding fan 25 fixed in a mounting hole of the mounting plate 26, the mounting plate 26 being fixed at the uppermost portion of the control board bracket 21; the guiding fan 25 work can make the air flow in the control panel module 2, and can also introduce outside air from below the control panel module 2 (the lower bracket of the instrument under the control panel module 2 opens a ventilation slot), thereby realizing the control panel module 2 and the instrument Other modules adjacent to it, such as heat dissipation from the periphery of the high temperature furnace body 1.
  • control board 24 of the control panel module 2 may further include a Bluetooth and wifi component for implementing wireless communication.
  • the measuring board module is used to connect the measuring line.
  • the measuring board module 4 is of a modular design. As shown in FIG. 4A and FIG. 4B, the measuring board module includes a measuring board 41 and a front panel 42 which are disposed in alignment, and the measuring board 41 is provided with a TC socket element 43. A socket hole 44 is disposed in the front panel 42 , a plurality of test connection terminals 45 are disposed on the measurement board 41 , and a plurality of terminal holes 46 are disposed on the front panel 42 .
  • the measuring board 41 and the front panel 42 are stacked on the side to form a measuring board module 4, and the measuring board module 4 is integrally assembled on the lower part of the front side of the instrument housing 6.
  • the top of the measuring board module 4 can be fixed to the instrument housing 6 by screws, and the bottom is fixed. It can also be fixed by screws to the lower support 5 of the instrument.
  • the measuring board module 4 is located before the control board module 2 and has a spacing from the control board module 2 to facilitate heat dissipation.
  • the measuring plate assembly 4 is integrated with a TC socket element 43, which is a thermocouple cold junction temperature compensation structure, and the thermocouple cold junction temperature compensation structure TC socket element 43 is fixed by measurement with a screw attached to the tail.
  • TC socket element 43 which is a thermocouple cold junction temperature compensation structure
  • the thermocouple cold junction temperature compensation structure TC socket element 43 is fixed by measurement with a screw attached to the tail.
  • the front two sockets 041 are aligned with the socket holes 44 in the front panel 42, and the thermocouples can be plugged through the socket holes 44.
  • the common thermocouple cold junction compensation structure adopts a cooling block in the cold end holding chamber, and the cold end temperature sensor and the cold junction of the thermocouple are closely attached to the temperature equalizing block.
  • the cold junction and the temperature equalizing block of the thermocouple are used in the structure. There is a thermal resistance between them. Therefore, in order to reduce the temperature difference between the cold junction temperature sensor on the temperature equalizing block and the cold junction of the thermocouple, it is necessary to wait for a long time, especially when the thermocouple is measured in batches, and the efficiency is low.
  • thermocouple cold junction temperature compensation structure for rapidly measuring the temperature of the cold junction of the thermocouple, that is, the TC socket component 43 is proposed in the measuring board module of the present invention, which can make the thermocouple in a shorter time.
  • the temperature of the cold junction of 05 is consistent with the temperature of the cold junction temperature sensor 01, improving the measurement efficiency of the cold junction temperature of the thermocouple.
  • thermocouple cold junction compensation structure includes a cold junction temperature sensor 01, a spring piece 02 and a second heat equalization block 03, and the second heat equalization block 03 is a large heat capacity heat conductor, and two pieces are provided.
  • the elastic piece 02 is an elastic body with good heat conduction and small heat capacity, and two pieces are respectively fixed on the two second heat equalizing blocks 03, and the elastic piece 02 is designed as an S-shaped structure, and the tail end thereof is right in FIG. 4E.
  • thermocouple The cold end of 05 can be inserted between the shrapnel 02 and the second soaking block 03 from the head end of the shrapnel 02 (see Fig. 4F).
  • the cold junction temperature sensor 01 has the characteristics of small size and low heat capacity, and can be mounted on the upper side of any of the elastic pieces 02 for measuring the cold end temperature of the thermocouple 05.
  • a thermal conductive glue may be added between the two second heat equalizing blocks 03 to facilitate heat transfer between the two second heat equalizing blocks 03 to ensure that the temperatures of the two second heat equalizing blocks 03 are substantially consistent.
  • the cold end temperature sensor 01 is usually bonded to the elastic piece 02.
  • a guard plate is respectively disposed on both sides of the position where the elastic piece 02 is bonded to the cold end temperature sensor 01.
  • the cold junction temperature sensor 01 lead wire is led out through a lead wire terminal 06, and the lead wire terminal 06 is inserted into the measuring board 42.
  • thermocouple cold junction temperature compensation structure further includes a cap 04, the cap 04 is a square box body, the cold end temperature sensor 01, the shrapnel 02 and the second soaking heat
  • the block 03 is placed in the cap 04, and the second heat equalizing block 03 is fixed by the screw 07 and the cap 04.
  • the lead wire of the cold end temperature sensor 01 is taken out from the tail of the cap 04 and then connected to the lead wire terminal 06.
  • the front end of the cap 04 is provided with two sockets 041, which respectively correspond to the position between the elastic piece 02 and the second heat equalizing block 03, and the cold end of the thermocouple 05 is inserted from the two sockets 041 into the elastic piece 02 and the second soaking heat, respectively.
  • the elastic piece 02 and the second heat equalizing block 03 are in close contact with the cold end of the thermocouple 05.
  • the heat capacity of the second heat equalizing block 03 is required to be much larger than the heat capacity of the shrapnel 02 and the cold end temperature sensor 01, and at the same time, the thermocouple 05 cold end and the second soaking block 03
  • the shrapnel 02 and the cold end temperature sensor 01 have good thermal conductivity; the cold end temperature sensor 01 on the shrapnel 02 should be insulated from the environment as much as possible, for example, a plastic sleeve or a portion of the cold end temperature sensor 01 that is not in contact with the shrapnel 02. Insulation glue.
  • the cold end of the thermocouple 05 is connected between the shrapnel 02 and the second soaking block 03.
  • the cold junction temperature of the thermocouple 05 is inconsistent with the second soaking block 03 and the shrapnel 02, there is heat from the thermoelectricity.
  • the cold end of the even 05 is transferred to the second heat equalizing block 03 and the shrapnel 02.
  • the temperature of the cold end of the thermocouple 05 tends to the temperature of the soaking block 03, and at the same time due to the shrapnel 02 and
  • the cold junction temperature sensor 01 on the shrapnel 02 has a relatively small heat capacity, and the temperature of the cold junction temperature sensor 01 rapidly approaches the temperature of the cold junction of the thermocouple 05, so that the temperature of the cold junction temperature sensor 01 quickly reaches the cold junction temperature of the thermocouple 05.
  • FIG. 4G shows the working curve of the thermocouple cold junction temperature compensation structure. The whole process is divided into three phases:
  • the first stage the cold end temperature sensor 01 and the second soaking block 03 are in the cap 04 (corresponding to the conventional cold end holding chamber), the temperature is basically the same; the temperature of the cold end of the thermocouple 05 and the cold end temperature sensor 01, the first The temperatures of the two heat equalizers 03 are inconsistent.
  • the second stage the cold end of the thermocouple 05 starts to transfer heat to the second heat equalizing block 03 and the cold end temperature sensor 01 on the shrapnel 02 and the shrapnel 02, and the temperature starts to change, and the cold end temperature of the thermocouple 05 tends to the cold end temperature.
  • the temperature will change to the temperature of the second heat equalizing block 03 faster; the cold end temperature sensor 01 on the shrapnel 02 and the shrapnel 02 has a smaller heat capacity and a faster temperature change, and the cold end temperature sensor 01 on the shrapnel 02 and the shrapnel 02
  • the temperature will quickly change to the temperature of the cold junction of the thermocouple 05; under the combined influence of the second heat equalizing block 03 and the shrapnel 02, the temperature of the cold junction temperature sensor 01 will quickly coincide with the temperature of the cold junction of the thermocouple 05.
  • the temperature of the cold junction temperature sensor 01 on the shrapnel 02 has substantially coincided with the temperature of the cold junction of the thermocouple 05, but there is still some difference from the temperature of the second soaking block 03.
  • the third stage the cold end temperature of the thermocouple 05 and the cold end temperature sensor 01 on the shrapnel 02 are almost synchronously changed, and the temperature of the cold end temperature sensor 01 can accurately reflect the temperature of the cold end of the thermocouple 05.
  • thermocouple cold junction temperature compensation structure can quickly measure the temperature of the cold junction of the thermocouple and has high efficiency.
  • the thermocouple cold junction temperature compensation structure can reduce the waiting time from a few minutes or even ten minutes to a dozen or so. Seconds or even seconds (depending on factors such as the temperature of the cold junction and cold junction temperature sensor 01 of the thermocouple 05), especially in the case of batch measurement of the temperature of the cold junction of the thermocouple, the measurement efficiency is significantly improved and time is saved.
  • the system board module is used for parameter setting and data display to realize human-computer interaction.
  • the system board module 3 is of modular design. As shown in FIG. 3A and FIG. 3B, the system board module 3 includes a touch screen panel 35 which is disposed in order from the front to the rear, a touch screen foam 34, a touch liquid crystal panel 33, and a touch liquid crystal.
  • the screen holder 32 and the system board 31 are in the shape of a cover, and the cover surface is provided with an assembly area matching the shape and size of the touch liquid crystal panel 33.
  • One or more connection ports 36 are disposed on the side of the system board 31, and the corresponding touch screen panel 35 is provided.
  • An interface hole 37 is left on the side, and the connection port 36 is installed correspondingly to the interface hole 37.
  • the touch screen foam 34, the touch liquid crystal panel 33, the touch liquid crystal display frame 32 and the system board 31 are sequentially assembled to the touch screen panel 35 in an integrated manner.
  • the left and right sides of the system board module 3 are respectively connected to the instrument cover 6 by screws, and are thus detachably mounted on the upper portion of the front side of the instrument cover 6.
  • the high temperature dry body temperature calibrator of the invention is further provided with an instrument cover 6 and an instrument lower support 5, as shown in FIG. 1A and FIG. 1B, the lower end of the instrument cover 6 is open, and is integrally placed on the lower support 5 of the instrument and
  • the peripheral side of the lower support 5 of the instrument is snap-fitted, and the control board module 2 and the high-temperature furnace body 1 are housed in the space formed by the instrument cover 6 and the lower support 5 of the instrument;
  • the lower part of the front side of the instrument cover 6 is provided with a measuring plate module 4
  • the matching area of the shape and the size, the upper part of the front side is provided with an assembly area matching the shape and size of the system board module 3, and the top surface is provided with a socket opposite to the upper end of the high temperature furnace body 1 for accommodating the device under test.
  • the outer cover 6 of the instrument is spaced from the periphery of the high-temperature furnace body 1, and the side ventilation groove group 61 is opened on the side of the instrument cover 6 at the top position, so that contact with the high-temperature furnace body 1 can be avoided on the one hand, and the other
  • the hot gas from the high temperature furnace body 1 can be well discharged from the side to prevent the hot air from burning on the handle of the device under test.
  • the top surface of the instrument cover 6 is provided with an upper ventilation groove group 62 near the side position, so that the hot air discharge from the inside of the instrument can be enhanced, which is beneficial to the overall heat dissipation of the instrument.
  • the instrument cover 6 and the flow guiding fan 25 at the upper end of the control board module 2 are spaced apart.
  • the flow guiding fan 25 is in operation, not only the airflow in the control panel module 2 is moved, but also the internal airflow of the instrument housing 6 is driven.
  • the instrument cover 6 can be made of plastic material, which not only saves material cost, but also reduces weight, so that the temperature calibrator of the invention is suitable for carrying and carrying.
  • the top of the instrument cover 6 can also be designed with handles.
  • the lower support 5 of the instrument is the support of the whole machine, and is clamped and fixed with the instrument cover 6 to form an instrument casing.
  • the bottom surface of the lower support 5 of the instrument is provided with a plurality of mounting holes for assembling the high temperature furnace body 1, the control panel module 2, the measuring plate module 4 and the instrument outer cover 6, in order to provide external air space to the instrument, and the lower bearing 5 in the instrument.
  • a plurality of venting slots are formed in the bottom surface and the side surface, and the form, number, and position of the venting slots are designed according to the distribution, and no limitation is imposed.
  • the high-temperature dry body temperature calibrator of the present invention may further be provided with a protection device 7, such as a protective frame or a protective cover.
  • a protection device 7 such as a protective frame or a protective cover.
  • the protective device 7 is placed on the top of the instrument cover 6, and its side is designed to facilitate Convection with the outside air to facilitate lateral heat dissipation, in the form of a leg as shown in FIG. 1B, or other form of rib with a larger area of air outlet; the top of the guard 7 is a shield, which is only provided A hole opposite to the upper end of the high temperature furnace body 1 and the top socket of the instrument housing is used to accommodate the device under test.
  • the protection device 7 can be added to further disperse the hot air flow from the high temperature furnace body to the side to rapidly cool down, thereby releasing the hot air flow to the handle of the device under test of the protection device 7, and avoiding the high temperature of the sensor inside the handle. Failure also protects the operator's access to the device under test.
  • the high temperature dry body temperature calibrator of the present invention can be assembled as follows: the high temperature furnace body 1 is installed at the rear position of the lower support 5 of the instrument, and the control panel module 2 is mounted on the lower support 5 of the instrument adjacent to the high temperature furnace body 1 and The high temperature furnace body 1 is connected, the instrument cover 6 is placed on the lower support 5 of the instrument and is fixed in the side peripheral surface of the lower support, and the measuring plate module 4 is installed on the lower part of the front panel of the instrument cover 6, and the system board module is installed. 3 Installed on the front panel of the instrument cover 6, thus completing the complete assembly of the high temperature dry body temperature calibrator.
  • the guard 7 can be mounted on the top surface of the instrument housing 6 as needed. Because the components that make up the temperature calibrator are modular in design, they are easy to assemble and easy to disassemble, making it easy to repair or replace parts.
  • the high temperature furnace body 1 and the control panel module 2 can be spaced apart during assembly of the high temperature dry body temperature calibrator, so that a high temperature furnace body 1 and the control panel module 2 are formed.
  • a gas flow channel (such as gas channel C3).
  • the system board 31, the control board 24, the measuring board 41, the thermostat block 13, the heating device 12, the cooling fan 16, and the diversion fan 25 are all electrically connected, and the instrument can be self-equipped with a power supply (for example, ESP-120-24 switching power supply can also be connected to an external power supply.
  • ESP-120-24 switching power supply can also be connected to an external power supply.
  • the system board 31 receives the operation command, and the system board module 3 sends an operation command to the control board module 2, according to which the control board 24 controls the heating device 12 and/or the cooling fan 16 in the high temperature furnace body 1 to achieve constant operation. temperature.

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  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

高温干体温度校验仪，属于温度校准技术领域，高温干体温度校验仪包括高温炉体(1)、控制板模块(2)、系统板模块(3)、测量板模块(4)、仪器下支座(5)和仪器外罩(6)，高温炉体(1)和控制板模块(2)装配在仪器下支座(5)上，系统板模块(3)和测量板模块(4)装配在仪器外罩(6)前侧面，仪器外罩(6)与仪器下支座(5)周向卡接固定并将高温炉体(1)和控制板模块(2)容纳在仪器外罩(6)内。模块化装配的各个模块之间相互独立，能够独立拆卸，便于维护和更换。高温干体温度校验仪可用于对高温被测元件的温度进行校验。

Description

高温干体温度校验仪 技术领域
本发明属于温度校验技术领域，涉及温度校验仪，具体涉及高温干体温度校验仪。
背景技术
温度校验仪用于对温度计或热控开关等测温设备进行校准，广泛应用于各行各业的工业现场、计量场所和实验室，具有比较广阔的市场。
高温干体温度校验仪用于对测温设备进行校验，其中需设有高温炉体。高温炉体在使用过程中，其附近的温度条件对其它一些元器件来说，是属于比较恶劣的环境条件，因此需要将其周围的环境与其它零部件进行隔离。同时，其作为核心部件，在生产、使用过程中，往往需要对其单独进行调试和维护，现有的产品往往和其它零部件锁定在一起，一旦出现问题就需要将整机进行拆解，大大增加了维护成本。
发明内容
本发明目的在于提供一种模块化装配、便于拆装的高温干体温度校验仪。
本发明提供一种高温干体温度校验仪，用于对高温被测元件进行温度校验，包括：
高温炉体(1)和控制板模块(2)，相互独立的装配在一仪器下支座(5)上，并位于一仪器外罩(6)的罩体内，该仪器外罩(6)装配在所述仪器下支座(5)上方且周向扣合；以及
系统板模块(3)，装配在所述仪器外罩(6)侧面上。
所述高温炉体(1)和控制板模块(2)之间有间距，仪器外罩(6)顶面与高温炉体(1)的炉口相对处设有用以容纳被测元件的插孔，且仪器外罩(6)与高温炉体(1)外围之间有间距，仪器外罩(6)侧面靠顶部位置开设侧通风槽组(61)。
上述高温干体温度校验仪还包括测量板模块(4)，测量板模块(4)装配在所述仪器外罩(6)上并与仪器下支座(5)连接，测量板模块(4)与控制板模块(2)之间有间距。
上述高温干体温度校验仪还包括设置在仪器外罩(6)顶部的防护装置(7)，所述防护装置(7)的顶部防护板设有与高温炉体(1)的炉口以及仪器外罩(6)的顶部插孔相对位的孔，用以容纳被测元件，其侧面敞口或为具有出风口的肋板。
所述高温炉体(1)包括：
底座(11)，置于高温炉体(1)的底部；
恒温块(13)和隔热筒(14)，固定在底座(11)上，所述隔热筒(14)置于所述恒温块(13)外围并与恒温块(13)呈间距形成冷却通道(C1)；以及
冷却风扇(16)，安装在底座(11)空腔内；
所述底座(11)设置有通风孔，所述通风孔与冷却通道(C1)相通，冷却风扇(16)透过所述通风孔与冷却通道(C1)相通。
所述隔热筒(14)包括内筒体(14-1)和套设在内筒体(14-1)外的外筒体(14-2)，所述内筒体为密闭的双层结构，其由内壁、外壁及两端的封板组成中空的隔热筒体；内筒体(14-1)置于恒温块(13)外侧与恒温块(13)呈间距形成冷却通道(C1)，外筒体(14-2)置于内筒体(14-1)外围且二者之间的间距形成二次冷却通道(C2)，内筒体(14-1)和外筒体(14-2)底部固定在高温炉体(1)的底座(11)上；内筒体(14-1)和外筒体(14-2)顶部通过一定位块(15)卡固，定位块(15)开设有与冷却通道(C1)和二次冷却通道(C2)均连通的气流出口(15-2)。
所述底座(11)固定隔热筒(14)的端面设置有支撑柱安装孔(11-2)，用于安装支撑恒温块(13)的支撑柱(20)，支撑柱(20)顶端与恒温块(13)固定连接，支撑柱(20)底端卡固在支撑柱安装孔(11-2)内；所述定位块(15)下部设置对位槽(15-3)，恒温块(13)上的加热棒(12)上端头卡固在对位槽(15-3)内。
所述底座(11)为盒体结构，其固定隔热筒(14)的顶部端面设置有肋条支架(11-1)，肋条间的空隙区域与底座(11)的盒体内腔连通，肋条支架(11-1)呈桥拱形状，从侧边向中心部位拱起，肋条支架(11-1)上设置支撑柱安装孔(11-2)。
所述底座(11)固定隔热筒(14)的端面分布设多个条状凸台(11-5)，外筒体(14-2)由上向下套接在条状凸台(11-5)外侧。
所述条状凸台(11-5)间均布或对称设置多个外筒限位块(11-6)，外筒限位块(11-6)位于外筒体(14-2)的内侧或外侧。
所述肋条支架(11-1)边缘分布设有多个凸块(11-3)，内筒体(14-1)由上向下套接在凸块(11-3)外侧并与凸块(11-3)固定；凸块(11-3)与条状凸台(11-5)间留有间距，该间距与外筒体和内筒体之间的间距相匹配。
底座(11)对应外筒体(14-2)和内筒体(14-1)之间的区域设有与底座(11) 的盒体内腔连通的通槽(11-4)，通槽(11-4)连通所述二次冷却通道(C2)。
上述高温干体温度校验仪还包括：
风阀，固定于底座(11)的盒体内腔中，且位于冷却风扇(16)的上方。
所述底座(11)向一侧延伸出一平面，在该平面上设有一个或多个通风口(11-7)，该通风口连通来自高温炉体底部的外界空气但与冷却通道(C1)不连通。
所述控制板模块(2)包括：
槽式控制板支架(21)，一开关电源(22)装配在控制板支架(21)的槽体内，一控制板(24)安装在控制板支架(21)的槽体顶部开口处，在开关电源(22)和控制板(24)之间安装一隔板(23)。
所述控制板模块(2)还设有导流风扇(25)，导流风扇(25)固定在控制板模块(2)顶部且与控制板模块(2)的槽体连通，控制板模块(2)下方的仪器下支座(5)开设通风槽。
所述系统板模块(3)包括由前向后依次固定的触摸屏面板(35)、触摸屏泡棉(34)、触摸液晶屏(33)、触摸液晶屏支架(32)和系统板(31)。
所述测量板模块(4)包括
测量板(41)，其上设置有TC插座元件(43)和多个测试连接端子(45)；和
前面板(42)，与测量板对位叠合固定且设有与所述TC插座元件(43)和测试连接端子(45)相匹配的插座孔(44)和多个端子孔(46)。
所述TC插座元件(43)为热电偶冷端温度补偿结构，包括：
两块第二均热块(03)，两块第二均热块之间有间距，每一第二均热块(03)上连接一弹片(02)；和
冷端温度传感器(01)安装在任一弹片(02)的上侧，所述热电偶(05)冷端置于弹片(02)和第二均热块(03)之间且紧贴弹片(02)和第二均热块(03)；
第二均热块(03)的热容远大于弹片(02)和冷端温度传感器(01)的热容。
所述弹片(02)为小热容、导热性良好的弹性体，为S形结构，其尾端固定于第二均热块(03)的尾部，弹片(02)的头端上扬，靠近头端的部分自由置于第二均热块(03)的上表面；两块第二均热块(03)之间设置导热胶。
所述热电偶冷端温度补偿结构还包括：
套帽(04)，为方形盒体，用于容置冷端温度传感器(01)、弹片(02)和第二均热块(03)，套帽(04)的前端设置有两个插口，插口对应弹片(02)与第二均热块(03)之间的位置以插入热电偶(05)冷端；和
引出线端子(06)，一端插接在测量板(41)上，另一端与从套帽(04)的尾部引出的冷端温度传感器(01)的引出线连接。
安装于弹片(02)上的冷端温度传感器(01)不与弹片(02)接触的部分加设塑料套或绝热胶；冷端温度传感器(01)通过胶粘接在弹片(02)上，弹片(02)粘接冷端温度传感器(01)的位置两侧分别设置一护板。
所述仪器外罩(6)下端开口，整体置于仪器下支座(5)上并与仪器下支座的周侧卡接固定；测量板模块(4)安装在仪器外罩(6)的侧面，系统板模块(3)安装在仪器外罩的侧面。
仪器外罩(6)顶面靠近边侧位置开设上通风槽组(62)；仪器下支座(5)的底面和侧面开设若干通气槽孔。
仪器外罩(6)由塑料材质制成。
仪器下支座(5)的底面分布设有若干装配孔，与高温炉体(1)、控制板模块(2)、测量板模块(4)和仪器外罩(6)水平设置的装配部件(9)对位安装。
所述控制板模块(2)与高温炉体(1)纵向平行，两者相邻侧面通过炉体侧面装配部件(9)连接固定。
所述系统板模块(3)左右两侧面分别通过螺钉与仪器外罩(6)连接，测量板模块(4)顶部通过螺钉与仪器外罩(6)固定。
采用以上设计，组成本发明高温干体温度校验仪的各个模块之间相互独立，能够独立拆卸，便于维护和更换。利用底座将高温炉体各部件集成为模块形式，便于高温炉体在温度校验仪中拆卸；高温炉体中通过定位块、底座支撑柱的设计实现对恒温块的自动扶正，避免了拆装调校的作业；隔热筒为双筒结构，多气流通道实现炉体的快速降温，内筒体为密闭的双层结构，质量轻、隔热好。控制板模块中还包含蓝牙、wifi组件，可以实现无线通信。系统板触摸控制，操作效率更高。仪器内多重气体通道的设计利于炉体的降温和整机的散热。仪器外罩为塑料材质，可以减少重量。
附图说明
图1A为本发明高温干体温度校验仪外观立体图；
图1B为本发明高温干体温度校验仪结构分解图；
图2A为本发明高温干体温度校验仪中控制板模块立体图；
图2B为本发明高温干体温度校验仪中控制板模块图构成分解图；
图3A为本发明高温干体温度校验仪中系统板模块立体图；
图3B为本发明高温干体温度校验仪中系统板模块图构成分解图；
图4A为本发明高温干体温度校验仪中测量板模块立体图；
图4B为本发明高温干体温度校验仪中测量板模块图构成分解图；
图4C为测量板模块中热电偶冷端温度补偿结构的主视图；
图4D为测量板模块中热电偶冷端温度补偿结构的结构分解图；
图4E为测量板模块中图4C中沿A-A线截取的截面图；
图4F为测量板模块中热电偶冷端温度补偿结构与热电偶配合使用的结构示意图；
图4G为测量板模块中热电偶冷端温度补偿结构的工作曲线；
图5-1为本发明高温炉体在温度校验仪中与周边部件安装示意图；
图5-2A为本发明高温炉体结构分解示意图；
图5-2B为本发明高温炉体装配后外观图；
图5-3为本发明高温炉体剖面结构及气流通道示意图；
图5-4A为本发明高温炉体中底座结构顶视图；
图5-4B为本发明高温炉体中底座结构底视图；
图5-5为本发明高温炉体中定位块底部结构示意图；
图5-6为本发明高温炉体中底座与隔热筒外筒体安装后俯视图；
图5-7A为本发明高温炉体中所用风阀的一种具体结构示意图；
图5-7B为本发明高温炉体中所用风阀的一种具体结构立体图；
图5-7C为本发明高温炉体中所用风阀的另一种具体结构分解图；
图5-7D为本发明高温炉体中所用风阀的再一种具体结构立体图；
图5-8为本发明高温炉体中多气流通道示意图。
附图标记：
整机部件标号：高温炉体1、控制板模块2、系统板模块3、测量板模块4、仪器下支座5、仪器外罩6，防护装置7，装配部件9；
高温炉体1中部件标号：见分部件介绍章节；
控制板模块2中的部件标号：控制板支架21，开关电源22，隔板23，控制板24，导流风扇25，安装板26；
系统板模块3中的部件标号：系统版31，触摸屏支架32，触摸液晶屏33，触摸屏泡棉34，触摸屏面板35,连接端口36，接口孔37；
测量板模块4中的部件标号：测量板41，前面板42，TC插座元件43，TC插座接口44，电测柱45，电测柱穿孔46；
TC插座元件43的部件标号：冷端温度传感器01，弹片02，第二均热块03，套帽04，插口041；热电偶05，引出线端子06，螺钉07；
仪器外罩6中的部件标号：侧通风槽组61，上通风槽组62。
具体实施方式
本发明提供一种高温干体温度校验仪，该温度校验仪的组成部分采用模块化设计，图1B示出了该高温干体温度校验仪的分解结构，其包括有高温炉体1、控制板模块2、系统板模块3、测量板模块4和仪器下支座5、仪器外罩6，高温炉体1、控制板模块2和测量板模块4由后向前顺序装配在仪器下支座5上，系统板模块3装配在仪器外罩6的前面，仪器外罩6装配在仪器下支座5上方并将高温炉体1、控制板模块2和测量板模块4均容纳在仪器外罩6的罩体内。更优的，为防止仪器使用中来自高温炉体1向上的高温烫伤操作人员，在仪器外罩6的最顶部设一防护装置7。整机装配后外观图如图1A所示。
构成高温干体温度校验仪的各部分分述如下：
高温炉体
在高温干体温度校验仪中，高温炉体用于提供稳定的温度环境。该高温炉体1整体为模块化设计，其与高温干体温度校验仪中相邻的控制板模块2和整机仪器下支座5通过装配部件9(如使用安装螺钉)固定，使高温炉体1能够方便快捷的进行拆装，参见图5-1所示。
本发明中高温炉体1部件标号：
底座11，加热棒12，恒温块13，隔热筒14，定位块15，冷却风扇16，风阀17，风阀二18，风阀三19，支撑柱20；
底座11部件标号：肋条支架11-1，支撑柱安装孔11-2，凸块11-3，通槽11-4，条状凸台11-5，外筒限位块11-6，通风口11-7，定位销钉孔11-8；
内筒体14-1，外筒体14-2，快速冷却通道C1，二级冷却通道C2，散热通道C3，
定位块15部件标号：中心孔15-1，气流出口15-2，对位槽15-3；
风阀17部件标号：框架17-1，叶片17-2，连杆17-3，电动机17-4，电动机安装板17-5，安装孔17-6,叶片曲轴17-7，叶片轴17-8，电动机曲轴17-9，限位柱17-10和17-11，卡钩17-12；
风阀二18部件标号：支撑架18-1，可移动挡风板18-2，固定挡风板18-3，旋转轴18-4，中心轴18-5；
风阀三19部件标号：支撑框19-1，片状挡风板19-2。
参见图5-2A和图5-2B，高温炉体1包括：置于底部的底座11，置于底座上部的恒温块13、加热棒12、以及置于恒温块外围的隔热筒14，以及置于顶部的定位块15。加热棒12安装在恒温块13内部，是炉体的加热元件；隔热筒14置于恒温块13外围且与恒温块间有间距；底座11为隔热筒14和恒温块13的安装基座；定位块15连接隔热筒14上部且与恒温块13中的加热棒12对位卡固(结合图2B)。
进一步结合图5-3、图5-4A和图5-4B所示，底座11整体呈向下敞口的盒状结构，其整体作为隔热筒14和恒温块13的安装基座，盒体下部空腔内则安装冷却风扇16。本发明炉体的优选方式，是进一步在高温炉体1中设置风阀17用以阻隔来自炉体下方的气流(即便冷却风扇16关闭)，风阀17和冷却风扇16装配于底座11的盒体空腔内，向上为进气方向，风阀17位于冷却风扇16上方。底座11盒体内均设有安装冷却风扇16、风阀17的导向、定位结构，例如，如图4B所示，底座11的下部空腔的表面形成有多个(例如6个)限位凸起11-10，该限位凸起用于在安装风阀17的过程中对风阀17起限位作用并可以兼具导向功能，便于风阀17定位在底座11下部空腔内的相应位置(例如与装在底座11上部的恒温块13相对位置)；风阀17和冷却风扇16边框设计为方形时，边框的四个角上均具有安装孔，底座11内部的相应位置上具有四个螺纹孔，利用螺钉将风阀17、冷却风扇16一同固定在底座11的盒体内腔。
继续参见图5-4A，盒状结构的底座11顶部端面设置有肋条支架11-1，肋条间的空隙区域与盒体内腔连通，肋条支架11-1中心位置设一支撑柱安装孔11-2用于安装支撑柱20，支撑柱20支撑恒温块13，支撑柱安装孔11-2可设计为扁圆状以卡固支撑柱20，支撑柱20与恒温块13下部固定连接。更优的，此肋条支架11-1呈桥拱形状，从侧边向中心部位拱起，便于支撑固定支撑柱20，同时还能改善肋条支架11-1的受力，减小其变形。肋条支架11-1结构经过如此优化，可以增加气流强度，增大气流通道面积，降低空气流动阻力。中心部位拱起还利于与安装在支架11下部的风阀17、冷却风扇16中心拉开距离，有利于降低风阀17、尤其是冷却风扇16中心部位电机的工作温度。
炉体底座11中，肋条支架11-1可以有多种肋条设置方式，各种形式均需在肋条支架11-1上设置支撑柱安装孔11-2。
炉体底座11底部两相对侧面的中间位置水平方向分设两个定位销钉孔11-8，用于在将高温炉体1安装到整机仪器下支座5时的导向及精准定位。底座11与整 机仪器下支座5连接的装配部件9可在水平方向分设在定位销钉孔11-8两侧，通过这四个底座11底部水平方向上的装配部件9与仪器下支座5连接(结合图5-1)。
参见图5-3和图5-2B，隔热筒14分为套设的内筒体14-1和外筒体14-2。结合图5-2B所示，内筒体14-1为密闭的双层结构，其由内壁、外壁及两端的封板组成了一个中空的隔热筒体，中空隔热筒体能利用两层之间静止的空气作为隔热带，不仅具有质量轻、隔热好的特点，更能有效的降低恒温块13对周围零部件的传热，大幅降低周围零部件的温度；外筒体14-2为单层板体结构以利于快速散热。内筒体14-1置于恒温块13外侧且留有间距，外筒体14-2置于内筒体14-1外侧且留有间距，内筒体14-1和外筒体14-2底部固定在炉体底座11上表面，顶部通过定位块15卡固，定位块15留有气流出口15-2(参见图5-5和图5-6)。本发明实施例不限定定位块15的具体形状，能够实现卡固功能即可，定位块15两端可以分别设置一个或者两个用于与高温炉体1固定的固定孔。结合图5-4A所示，在炉体底座11上表面外侧分布设四个条状凸台11-5，四个条状凸台11-5长度方向相同，用于导向、定位和固定隔热筒14的外筒体14-2，外筒体14-2由上向下套接在条状凸台11-5外侧；为更好地对外筒体14-2的安装导向，还可以在炉体底座11上表面分布设四个条状凸台11-5的周边连线中加设外筒限位块11-6，可对外筒体14-2的变形有限定、矫正作用，较好的，外筒限位块11-6设在相邻两个条状凸台11-5连线的中间位置，且位于外筒体14-2的内侧或外侧，设多个外筒限位块11-6时最好对边对称设置，且可以一部分位于外筒体14-2的内侧而另一部分位于外侧。
继续参见图5-3和图5-2B，在炉体底座11上表面肋条支架11-1边缘分布设四个凸块11-3，每个凸块11-3的外侧开设安装孔，用于定位和固定隔热筒14的内筒体14-1，内筒体14-1由上向下套接在凸块11-3外侧，并利用固定栓通过凸块11-3开设的安装孔将内筒体14-1固定在底座11上。用于固定定位内筒体14-1的凸块11-3与用于导向、定位、和固定外筒体14-2的条状凸台11-5间留有一段距离，该距离与外筒体14-2和内筒体14-1的间距匹配，在底座11该段距离所形成的围绕肋条支架11-1的区域内，开设与底座1下部空腔连通的通槽11-4，通槽11-4开设的长短、数量和在所述区域内的位置不限，但较优为均布开设多个。
如此，隔热筒14和恒温块13一起组成了两个独立的风道，其中，内筒体14-1内侧面与恒温块13外侧面间的间隔形成一个冷却通道C1，当炉体需要冷却时，下方的冷却风扇16工作，将大量高速冷空气吹过恒温块13以及内筒体14-1内壁， 而将热量经由冷却通道C1向上从定位块15的气流出口15-2排出。内筒体14-1外侧面与外筒体14-2内侧面间的间隔形成二级冷却通道C2，利用来自炉体下方的空气的经由通槽11-4进入二级冷却通道C2自然对流以对内筒体14-1进行进一步降温，从而达到有效控制外筒体14-2壁面温度的目的。炉体剖面示意以及冷却气流分配详见图5-3所示。
为更好地保持炉体温度的稳定，本发明一种优选方式是在图5-3所示的高温炉体1中安装了风阀17。风阀17的作用是切断恒温块13周围快速冷却通道C1的空气对流路径，阻止对流空气对恒温块13的温场影响。任何能达到该功能的风阀结构均可用于本发明高温炉体1中。作为一个具体示例，图5-7A和图5-7B给出了风阀17的一种具体结构，其不作为对风阀17其它构型的限制，例如根据炉体形状改变外形、改变叶片形式等等。
图5-7A和图5-7B所示的风阀17包括框架17-1，设置在框架内的多个彼此平行的叶片17-2、与多个叶片连接的连杆17-3以及与连杆连接的驱动装置例如电动机17-4，所述电动机17-4固定在框架17-1上。
具体的，框架17-1为方形，在其相对的两个侧壁上形成有多个彼此相对的通孔以允许位于两侧壁之间的叶片17-2穿过通孔进而架设于该两个侧壁上，具有通孔的两个侧壁中的一个延伸出一电动机安装板17-5，其用于安装电动机17-4，所述电动机安装板17-5与所述框架可为一体成型或固定连接。所述框架17-1的四个角上形成有安装孔17-6用于与高温炉体1底部连接安装，该方形框架的边长与高温炉体1底部外框相匹配，框架17-1边框的边长为60毫米至120毫米，使得风阀与干体温度校验仪的炉体尺寸相配合，在一个实施例中，高温炉体1底部为正方形，风阀的框架17-1也为正方形，边长尺寸为92毫米；在另一实施例中，参见图5-7B所示，框架17-1的四个侧壁中的一个或多个的外表面上分别形成有卡钩17-12，用于冷却风扇16安装时的导向和定位。
叶片17-2为长方形薄板，叶片的一端(靠近连杆17-3的一端)具有曲轴17-7，叶片的另一端具有叶片轴17-8，叶片曲轴17-7、叶片17-2和叶片轴17-8三者一体成型制成。每片叶片17-2两端的叶片轴17-8和叶片曲轴17-7分别卡接进入所述框架17-1两侧壁上的相对通孔内，进而使得所述叶片17-2架设在所述框架17-1内，并且可以进行自由旋转。所述叶片17-2的个数没有限制，在具体实施例中，所述叶片的个数优选为5个。
连杆17-3上具有多个通孔，所述通孔的个数与叶片17-2的个数相同，叶片 一端的叶片曲轴17-7卡接进入所述连杆的通孔。多个叶片17-2以相同的方式与连杆17-3连接，连杆17-3移动带动多个叶片17-2一起旋转，使得多个叶片17-2同步运动。
电动机17-4安装在电动机安装板17-5上，电动机曲轴17-9一端与电动机的旋转轴进行固定，另外一端与连杆17-3连接。在电动机安装板17-5和风阀框架17-1上，各有一处限位柱17-10和17-11，用于限制电动机曲轴17-9旋转的两处极限位置，进而限制电动机17-4旋转轴的旋转角度。
在风阀17使用过程中，在电动机17-4的驱动下，电动机曲轴17-9以电动机的旋转轴为中心进行旋转，带动连杆17-3移动，进而通过多个叶片曲轴17-7带动叶片17-2与电动机曲轴17-9同步旋转，在本实施例中，当电动机曲轴17-9旋转至接触位于风阀框架上的限位柱17-11时，所有叶片17-2的叶面均平行于框架17-1所在平面，风阀17处于完全关闭状态，如图5-1所示；当电动机曲轴17-9旋转至接触位于电动机安装板17-5上的限位柱17-10时，所有叶片17-2的叶面均垂直于框架17-1所在平面，风阀17处于完全打开状态。通过精确控制电动机17-4的旋转轴在两限位柱17-10和17-11之间的旋转角度，即可通过电动机曲轴17-9、连杆17-3和叶片曲轴17-7，精确控制叶片17-2的旋转角度，进而精确控制风阀17的打开程度。
请参阅图5-7C，提供另外一种结构形式的风阀称为风阀二18，其包括支撑架18-1、设置在支撑框架内部的多块挡风板和驱动装置。所述支撑架18-1内缘为圆形，挡风板为扇形，可以分为交替分布的固定挡风板18-3和可移动挡风板18-2，多块固定挡风板18-3以其扇形长边均布固定在支撑架18-1圆形内缘，多块可移动挡风板18-2以其扇形短边均布固定于一中心轴18-5。所述驱动装置包括电机和与电机连接的旋转轴18-4，所述旋转轴与可移动挡风板18-2中心的旋转轴18-4连接并可驱动所述多个可移动扇形挡风板旋转移动。所述中心轴18-5和所述旋转轴18-4同轴套设连接，相邻固定挡风板18-3之间的空档区域恰匹配可移动挡风板18-2的扇面，且相邻可移动挡风板18-2之间的空档区域恰匹配固定挡风板18-3的扇面，当扇形固定挡风板18-3和扇形可移动挡风板18-2拼接且彼此无遮挡的分布时，所述风阀二18处于关闭状态，此时风阀阻挡气流穿过自身。当扇形可移动挡风板18-2在驱动装置的驱动下旋转直至与所述扇形固定挡风板18-3完全或者部分重叠使得两者完全或者部分遮挡时，此时风阀二18处于完全打开或者部分打开的状态，此时风阀允许气流完全或者部分穿过自身。
请参阅图5-7D，提供再一种结构形式的风阀称为风阀三19，其包括支撑框19-1、设置在支撑框内部的多个片状挡风板19-2和驱动装置。所述支撑框19-1为方形，多个片状挡风板19-2彼此平行且其侧面边缘依次连接，例如铰接，使得相邻的片状挡风板19-2的夹角可以从0度变换至180度，从而呈现出平铺状态或者折叠状态。在驱动装置的驱动下，当所述多个片状挡风板19-2彼此之间形成180度角，即多个片状挡风板依次平铺形成一个平面时，所述风阀三19关闭，支撑框19-1内部开口被多个片状挡风板19-2完全覆盖，此时风阀阻挡气流穿过自身。在驱动装置的驱动下，当所述多个片状挡风板之间的夹角小于180，即多个片状挡风板19-2向一侧折叠时，所述多个片状挡风板无法完全覆盖支撑框19-1内部的开口，支撑框在其一侧形成有开口，依据该开口的打开程度，风阀三19完全或者部分打开，此时风阀允许气流完全或者部分穿过自身。
与风阀17类似，风阀二18和风阀三19可以装配在图5-3和图5-4B所示的高温炉体1中，在此不再赘述。
为配合温度校验仪整体装配，本发明中的高温炉体1在模块化设计中，还在上述形式基础上进一步优化：
参见图5-4A并结合图5-2B和图5-8所示，底座11的座体上部向一侧延伸出一平面，在该平面上开具一个或多个通风口11-7，该通风口连通来自炉体底部的外界空气但与冷却通道C1不连通。如此，高温炉体1安装在温度校验仪中时，座体11上具有通风口11-7的高温炉体1外侧和仪器内的其它部件间会存在一间距并在该间隔形成一个气流通道C3，利于散热以减少高温炉体1对装配在仪器内的其它部件例如控制板模块2等的影响。
参见图5-4A并结合图5-1所示，底座11的座体一侧底部可水平设置一个或多个装配部件9，使底座11能通过该装配部件9与仪器下支座5固定；隔热筒的外筒体14-2也作为高温炉体1的外壳，外筒体14-2为铝型材，采用后加工的方式制成，在其一侧面上设有多个侧向装配部件9，用以和与其相邻的其它模块部件如控制板模块2连接，如此，在温度校验仪紧凑的空间内，外筒体14-2还充当了控制板模块2的支撑，并可方便拆装。侧向装配部件9最好设在与底座的通风口11-7同一方向侧面上，如此，装配好的高温炉体1和控制板模块2之间便可以形成气流通道C3，利于散热。
参见图5-2并结合图5-3、图5-5和图5-6所示，位于高温炉体1上部的定位块15与外筒体14-2连接，并通过加热棒12对恒温块13进行扶正：定位块15 底部开设有和加热棒12相对应的对位槽15-3，对位槽15-3开设的数量和位置与加热棒12的数量和位置完全对应，使装配在恒温块13中的加热棒12的顶部恰能伸入所对应的对位槽15-3中，从而限定了加热棒12及恒温块13在水平方向的移动，实现对恒温块的扶正；定位块15中部设有中心孔15-1，其与恒温块13、均热块与仪器整机外罩顶部防护板中间孔同轴并对位；通过利用定位块15与这些零部件的精密配合，精确保证了恒温块13及高温炉体1的位置。通过定位块15的设计，高温炉体1不再需要通过顶部其它定位组件与整机外罩上的框架进行连接定位，高温炉体1顶部和外罩之间不接触，从而断开了炉体通过顶部定位组件向整机外壳铸铝的外框架的热传导，有效的降低了外框架及与之相连的外罩的温度。
通过以上所述各种优化的设计，使得高温炉体向仪器外罩6的传热大幅降低，整机仪器外罩可采用塑料材质加工成型，不仅降低了材料成本，还大大减少了操作者接触金属外罩可能引起的烫伤。
另外，本发明还针对高温炉体1对恒温块13的自动扶正功能进一步做出优化设计：如，底座11与恒温块13安装时采用四点圆柱定位，即在恒温块13下部的支撑柱20与恒温块13固定连接，支撑柱20与肋条支架11-1上的支撑柱安装孔12-1采用圆柱削平的方式(扁平槽)进行定位；同时，在恒温块13上部，定位块15下部开设的四个对位槽15-3嵌套住恒温块13上的加热棒12(四个加热棒)的上端，如此能有效控制恒温块13和底座11之间的扭转偏差。
再如，底座加工采用压铸工艺，外筒体14-2加工采用挤塑成型工艺，使其安装面平面度和平行度精度都较高。
再如，外筒体14-2和底座11采用上下安装形式，例如为竖直方向上的螺纹连接，且外筒体14-2四周内侧的座体11上都具有导向和限位结构如条状凸台11-5，限位块11-6(参见图5-4A及图5-6)，外筒装配精度基本和加工精度相当，消除了装配误差。
在气流走向方面本发明也进行了精心设计：其一，恒温块13和内筒体14-1之间形成了一个通过冷却风扇16和风阀17控制送风用于给恒温块13快速降温的气流通道即冷却通道C1，通过优化炉体底座11的设计，有效的利用了底座11盒体内腔空间，能安装较现有技术更大尺寸的风扇，使得本发明炉体的降温速度大幅增加。参见图5-8所示C1通道。
其二，在炉体底座1腔体、冷却风扇16外框、风阀17外框、内筒体14-1及外筒体14-2之间区域，形成了第二个气流通道即二级冷却通道C2，在炉体工作时， 进入二级冷却通道C2内的外界空气能降低内筒体14-1及外筒体14-2的温度，减少高温炉体对整机的传热。参见图5-8所示C2通道。
其三，如图5-8所示，还另外设计了降温通道C3，该降温通道C3是炉体底部空气通过底座11一侧所设的通风口11-7，在高温炉体1隔热筒14外侧和仪器内的其它部件间特别形成的一个气流通道，用于给装配在仪器内的其它部件例如控制板模块2(参见图5-1)等进行降温。
高温炉体1有益效果有：
1)、内筒体为密闭的双层结构，利用两层之间静止的空气作为隔热带，具有质量轻、隔热好的特点。
2)、高温炉体具有自动扶正恒温块的功能。
3)、模块化设计，让高温炉体与产品其它零部件完全独立，能有效地提高生产、维修的便利性，降低产品生产、维护成本。
4)、通过精巧布局，让高温炉体更紧凑，应用更便捷。
5)、独立的风道设计，让高温炉体的高温空气不会对产品其它零部件工作环境造成恶劣影响，从而降低了电子元器件的高温老化风险。同时也隔绝了其它零部件的发热对炉体的影响，提高高温炉体工作的稳定性和精度。
6)、恒温块能由结构自动扶正，减少了装配调整工序，提高了生产效率。
控制板模块
在高温干体温度校验仪中，控制板模块用于维持高温炉体稳定的温度环境。本发明中，控制板模块2为模块化设计，如图2A和图2B所示，控制板模块2包括一槽式控制板支架21，开关电源22(ESP-120-24开关电源)装配在控制板支架21的槽体内底面，布设有各控制元件和连接线路的控制板24安装在控制板支架21的槽体顶面，在开关电源22和控制板24之间安装隔板23，开关电源22可以用于同时或者分别为控制板2、系统板3供电，由于开关电源22(ESP-120-24)工作时会发热，设置隔板23可以阻挡热量影响控制板，另外设置隔板23还便于气流在导流风扇25(参见后面描述)作用下向上流动。控制板支架21、开关电源22、隔板23和控制板24装配形成一体的控制板模块2。
为方便将控制板模块2安装在仪器中，在控制板支架21槽体最下端设一个或多个水平布设的装配部件9，装配部件9的安装孔与仪器下支座5上的安装孔对位，以通过安装螺钉将控制板模块2固定在仪器下支座5上；另外在控制板支架21槽体底面延伸设多个装配部件9，与相邻的高温炉体外的装配部件9对位，以通过安 装螺钉将控制板模块2与高温炉体1固定连接。
更优的设计中，控制板模块2还包括导流风扇25，导流风扇25固定在一安装板26的安装孔内，该安装板26固定在控制板支架21的最上方；该导流风扇25工作能使控制板模块2内部气流运动，还能从控制板模块2下方引入外界空气(控制板模块2下方的仪器下支座5开设通风槽)，从而实现对控制板模块2以及仪器内与其相邻的其它模块，如高温炉体1外围的散热。
另外，控制板模块2的控制板24中还可包含蓝牙、wifi组件，用以实现无线通信。
测量板模块
在高温干体温度校验仪中，测量板模块用于连接测量线。本发明中，测量板模块4为模块化设计，如图4A和图4B所示，测量板模块包括有对位设置的测量板41和前面板42，测量板41上设置有TC插座元件43，前面板42上对位设有插座孔44，测量板41上布设多个测试连接端子45，前面板42上对应设有多个端子孔46。测量板41和前面板42对位叠合并于四周固定形成测量板模块4，测量板模块4整体装配在仪器外罩6的前侧面下部，测量板模块4顶部可通过螺钉与仪器外罩6固定，底部也可通过螺钉与仪器下支座5固定，测量板模块4位于控制板模块2之前且与控制板模块2之间有一间距以利于散热。
为了准确测量热电偶的温度，测量板组件4集成有TC插座元件43，其为热电偶冷端温度补偿结构，该热电偶冷端温度补偿结构TC插座元件43通过尾部自带的螺钉固定在测量板41上，其前端两个插口041(参见图4D)与前面板42上的插座孔44对齐，可以透过插座孔44插接热电偶。
通常的热电偶冷端补偿结构采用冷端保温仓内放置均温块、并使冷端温度传感器、热电偶冷端与均温块紧密贴合，该结构中因热电偶冷端与均温块之间存在的热阻，因此，为了使均温块上的冷端温度传感器与热电偶冷端的温差减小，需要等待较长时间，尤其是批量测量热电偶时，效率低。为了解决该问题，本发明测量板模块中提出了一种用于快速测量热电偶冷端温度的热电偶冷端温度补偿结构即TC插座元件43，该结构能够在更短的时间内使热电偶05冷端的温度与冷端温度传感器01的温度达成一致，提高热电偶冷端温度的测量效率。
图4C至图4G为该热电偶冷端温度补偿结构的示意图。如图4C至图4G所示，该热电偶冷端补偿结构包括冷端温度传感器01、弹片02和第二均热块03，第二均热块03为大热容导热体，设有两块且有间距；弹片02为小热容导热良好的弹 性体，设有两片，分别固定于两块第二均热块03上，弹片02设计为S形结构，其尾端(图4E中右侧为尾端)固定于第二均热块03的尾部，弹片02的头端上扬，弹片02靠近头端的部分自由置于第二均热块03的上表面，由于弹片02具有弹性，热电偶05冷端能够从弹片02头端插入弹片02与第二均热块03之间(参见图4F)。冷端温度传感器01具有尺寸小、热容低的特点，可安装在任一弹片02的上侧，用于测量热电偶05的冷端温度。优选的，两第二均热块03之间可加设导热胶，有利于热量在两第二均热块03之间进行热传递，保证两第二均热块03的温度基本保持一致。另外，冷端温度传感器01通常粘接在弹片02上，为了防止在粘接过程中胶溢出弹片02，在弹片02粘接冷端温度传感器01的位置两侧分别设置一护板。
为了将冷端温度传感器1测量的温度值进一步处理及应用，冷端温度传感器01引出线通过一引出线端子06引出，引出线端子06插接到测量板42上。
为了将热电偶冷端温度补偿结封装起来便于使用，热电偶冷端温度补偿结构还包括一套帽04，套帽04为一方形盒体，冷端温度传感器01、弹片02和第二均热块03均置于套帽04内，第二均热块03通过螺钉07与套帽04固定，冷端温度传感器01的引出线从套帽04的尾部引出后接入引出线端子06中，套帽04的前端设置有两个插口041，该插口分别对应弹片02与第二均热块03之间的位置，热电偶05的冷端从两个插口041分别插入到弹片02与第二均热块03之间，在弹片02的弹性力的作用下，弹片02与第二均热块03均与热电偶05的冷端紧密接触。
为了保证热电偶冷端温度补偿结构的性能，要求第二均热块03的热容远大于弹片02和冷端温度传感器01的热容，同时，热电偶05冷端、第二均热块03、弹片02和冷端温度传感器01均导热性良好；弹片02上的冷端温度传感器01尽量要与环境做绝热处理，例如在冷端温度传感器01不与弹片02接触的部分施加塑料套或加绝热胶。
实际使用时，热电偶05的冷端接入弹片02和第二均热块03之间，当热电偶05的冷端温度与第二均热块03、弹片02不一致时，会有热量从热电偶05冷端传递到第二均热块03和弹片02，由于第二均热块03的热容相对很大，热电偶05冷端的温度会趋向均热块03的温度，同时由于弹片02及弹片02上的冷端温度传感器01热容相对较小，冷端温度传感器01的温度会快速的趋向热电偶05冷端的温度，使冷端温度传感器01的温度快速达到与热电偶05冷端温度基本一致。
图4G示出了该热电偶冷端温度补偿结构的工作曲线，整个工作过程分为三个 阶段：
第一阶段：冷端温度传感器01和第二均热块03处于套帽04(相当于传统的冷端保温仓)中，温度基本一致；热电偶05冷端的温度与冷端温度传感器01、第二均热块03的温度不一致。
第二阶段：热电偶05冷端开始同时向第二均热块03和弹片02及弹片02上的冷端温度传感器01传递热量，同时温度开始变化，热电偶05冷端温度趋向于冷端温度传感器01(弹片02)及第二均热块03；第二均热块03的热容相对较大，温度相对变化缓慢，同时也是由于第二均热块03热容大，热电偶05冷端的温度会较快的向第二均热块03的温度变化；弹片02及弹片02上的冷端温度传感器01热容较小，温度变化较快，弹片02及弹片02上的冷端温度传感器01的温度会快速的向热电偶05冷端的温度变化；在第二均热块03及弹片02的综合影响下，冷端温度传感器01的温度会迅速的与热电偶05冷端的温度趋于一致，第二阶段结束时，弹片02上的冷端温度传感器01的温度已经和热电偶05冷端的温度基本一致，但与第二均热块03的温度还有些差距。
第三阶段：热电偶05冷端及弹片02上的冷端温度传感器01温度几乎同步变化，冷端温度传感器01的温度已经能精确反映热电偶05冷端的温度。
该热电偶冷端温度补偿结构能够快速测量热电偶冷端温度，效率高。在热电偶测量过程中，为了让热电偶05冷端温度与冷端温度传感器01的温度一致，该热电偶冷端温度补偿结构可将等待时间由原来的几分钟甚至十几分钟降低为十几秒甚至几秒(取决于热电偶05冷端与冷端温度传感器01的温度等因素)，尤其是在批量测量热电偶冷端温度的情况下，会显著的提高测量效率，节约时间。
系统板模块
在高温干体温度校验仪中，系统板模块用于参数设置，数据显示以实现人机交互。本发明中，系统板模块3为模块化设计，如图3A和图3B所示，系统板模块3包括由前向后依次设置的触摸屏面板35、触摸屏泡棉34、触摸液晶屏33、触摸液晶屏支架32和系统板31，触摸屏面板35为罩状，其罩面开设与触摸液晶屏33形状和尺寸匹配的装配区域，系统板31侧面设置一个或多个连接端口36，相应的触摸屏面板35侧面留有接口孔37，连接端口36与接口孔37对应安装，触摸屏泡棉34、触摸液晶屏33、触摸液晶屏支架32和系统板31依序向触摸屏面板35罩体内叠置装配为一体形成系统板模块3。系统板模块3左右两侧面分别通过螺钉与仪器外罩6连接，如此可拆卸的安装在仪器外罩6的前侧面上部。
仪器外罩与仪器下支座
本发明高温干体温度校验仪中还设有仪器外罩6和仪器下支座5，参见图1A和图1B所示，该仪器外罩6下端开放，整体置于仪器下支座5上并与仪器下支座5的周侧卡接固定，控制板模块2和高温炉体1容纳在仪器外罩6与仪器下支座5形成的空间内；仪器外罩6的前侧面下部开设有与测量板模块4形状和尺寸匹配的装配区域，前侧面上部开设与系统板模块3形状和尺寸匹配的装配区域，顶面开设有与高温炉体1上端炉口相对位的插孔用以容纳被测装置。
为能很好地散热，仪器外罩6与高温炉体1外围留有间距，且仪器外罩6侧面靠顶部位置开设侧通风槽组61，如此一方面能避免与高温炉体1的接触，另一方面能很好地将来自高温炉体1的热气从侧面排出而避免热气对被测装置手柄的灼烤。进一步优化，仪器外罩6顶面靠近边侧位置开设上通风槽组62，如此可加强来自仪器内部的热气排出，有利于仪器整体散热。再一步优化，仪器外罩6与控制板模块2上端的导流风扇25留有间距，如此，导流风扇25工作时，不仅使控制板模块2内气流运动，还带动仪器外罩6内部气流运动，有利于仪器整体散热。由于以上散热方式的设计，仪器外罩6可由塑料材质制成，不仅节约了材料费用，更可以减少重量，使本发明温度校验仪适于搬动携带。为便于携带，仪器外罩6顶部还可以设计提手。
仪器下支座5为整机的支撑，并与仪器外罩6卡接固定形成仪器外壳。仪器下支座5的底面分布设有若干安装孔用于装配高温炉体1、控制板模块2、测量板模块4和仪器外罩6，为向仪器内提供外部气空，在仪器下支座5的底面和侧面开设若干通气槽孔，通气槽孔的形式、数量、位置等依分布设计，不做限制。
防护装置
本发明高温干体温度校验仪中还可以进一步设有防护装置7，如防护架或防护罩，参见图1A和图1B所示，防护装置7置于仪器外罩6顶部，其侧面设计成利于与外界空气对流的形式以利于向侧向散热，如图1B所示的架腿形式，或其他带有较大面积出风口的肋板形式；防护装置7的顶部为防护板，其仅设有与高温炉体1上端炉口以及仪器外罩顶部插孔相对位的孔用以容纳被测装置。加设了防护装置7可以使来自高温炉体的热气流进一步向侧面分散而快速降温，从而解除了热气流对防护装置7外被测装置手柄的灼烤，避免了手柄内部传感器因高温引起的失效，也保护操作人员取放被测装置的安全。
本发明高温干体温度校验仪可如下装配：将高温炉体1安装在仪器下支座5 的靠后位置，将控制板模块2安装在仪器下支座5临近高温炉体1位置并与高温炉体1连接，将仪器外罩6置于仪器下支座5上并卡接于下支座的侧周面内固定，将测量板模块4安装在仪器外罩6前面板下部，将系统板模块3安装在仪器外罩6前面板上部，如此完成高温干体温度校验仪的整机装配。需要时，可将防护装置7安装在仪器外罩6顶面。由于组成温度校验仪的部件均为模块化设计，装配简便，也利于拆装，方便维修或更换部件。
为了实现更优的导流散热功能，本发明高温干体温度校验仪装配时高温炉体1和控制板模块2可以留有一间距，如此，在高温炉体1和控制板模块2之间形成一气流通道(如气体通道C3)。
本发明高温干体温度校验仪中，系统板31、控制板24、测量板41、恒温块13、加热装置12、冷却风扇16、导流风扇25等均电连接，仪器可以自配电源(例如ESP-120-24开关电源)，也可外接电源。工作时，系统板31接收操作指令，系统板模块3将操作指令发送至控制板模块2，控制板24根据该指令控制高温炉体1中加热装置12和/或冷却风扇16工作以达到恒定工作温度。

Claims (28)

  1. 一种高温干体温度校验仪，用于对高温被测元件进行温度校验，包括：
    高温炉体(1)和控制板模块(2)，相互独立的装配在一仪器下支座(5)上，并位于一仪器外罩(6)的罩体内，该仪器外罩(6)装配在所述仪器下支座(5)上方且周向扣合；以及
    系统板模块(3)，装配在所述仪器外罩(6)侧面上。
  2. 根据权利要求1所述高温干体温度校验仪，所述高温炉体(1)和控制板模块(2)之间有间距，仪器外罩(6)顶面与高温炉体(1)的炉口相对处设有用以容纳被测元件的插孔，且仪器外罩(6)与高温炉体(1)外围之间有间距，仪器外罩(6)侧面靠顶部位置开设侧通风槽组(61)。
  3. 根据权利要求1或2所述高温干体温度校验仪，还包括测量板模块(4)，测量板模块(4)装配在所述仪器外罩(6)上并与仪器下支座(5)连接，测量板模块(4)与控制板模块(2)之间有间距。
  4. 根据权利要求1或2或3所述高温干体温度校验仪，还包括设置在仪器外罩(6)顶部的防护装置(7)，所述防护装置(7)的顶部防护板设有与高温炉体(1)的炉口以及仪器外罩(6)的顶部插孔相对位的孔，用以容纳被测元件，其侧面敞口或为具有出风口的肋板。
  5. 根据权利要求1或2或3或4所述高温干体温度校验仪，所述高温炉体(1)包括：
    底座(11)，置于高温炉体(1)的底部；
    恒温块(13)和隔热筒(14)，固定在底座(11)上，所述隔热筒(14)置于所述恒温块(13)外围并与恒温块(13)呈间距形成冷却通道(C1)；以及
    冷却风扇(16)，安装在底座(11)空腔内；
    所述底座(11)设置有通风孔，所述通风孔与冷却通道(C1)相通，冷却风扇(16)透过所述通风孔与冷却通道(C1)相通。
  6. 根据权利要求5所述高温干体温度校验仪，所述隔热筒(14)包括内筒体(14-1)和套设在内筒体(14-1)外的外筒体(14-2)，所述内筒体为密闭的双层结构，其由内壁、外壁及两端的封板组成中空的隔热筒体；内筒体(14-1)置于恒温块(13)外侧与恒温块(13)呈间距形成冷却通道(C1)，外筒体(14-2)置于内筒体(14-1)外围且二者之间的间距形成二次冷却通道(C2)，内筒体(14-1)和外筒体(14-2)底部固定在高温炉体(1)的底座(11)上；内筒体(14-1)和 外筒体(14-2)顶部通过一定位块(15)卡固，定位块(15)开设有与冷却通道(C1)和二次冷却通道(C2)均连通的气流出口(15-2)。
  7. 根据权利要求5或6所述高温干体温度校验仪，所述底座(11)固定隔热筒(14)的端面设置有支撑柱安装孔(11-2)，用于安装支撑恒温块(13)的支撑柱(20)，支撑柱(20)顶端与恒温块(13)固定连接，支撑柱(20)底端卡固在支撑柱安装孔(11-2)内；所述定位块(15)下部设置对位槽(15-3)，恒温块(13)上的加热棒(12)上端头卡固在对位槽(15-3)内。
  8. 根据权利要求7所述高温干体温度校验仪，所述底座(11)为盒体结构，其固定隔热筒(14)的顶部端面设置有肋条支架(11-1)，肋条间的空隙区域与底座(11)的盒体内腔连通，肋条支架(11-1)呈桥拱形状，从侧边向中心部位拱起，肋条支架(11-1)上设置支撑柱安装孔(11-2)。
  9. 根据权利要求5至8任一项所述高温干体温度校验仪，所述底座(11)固定隔热筒(14)的端面分布设多个条状凸台(11-5)，外筒体(14-2)由上向下套接在条状凸台(11-5)外侧。
  10. 根据权利要求9所述高温干体温度校验仪，所述条状凸台(11-5)间均布或对称设置多个外筒限位块(11-6)，外筒限位块(11-6)位于外筒体(14-2)的内侧或外侧。
  11. 根据权利要求8或9或10所述高温干体温度校验仪，所述肋条支架(11-1)边缘分布设有多个凸块(11-3)，内筒体(14-1)由上向下套接在凸块(11-3)外侧并与凸块(11-3)固定；凸块(11-3)与条状凸台(11-5)间留有间距，该间距与外筒体和内筒体之间的间距相匹配。
  12. 根据权利要求5至11任一项所述高温干体温度校验仪，底座(11)对应外筒体(14-2)和内筒体(14-1)之间的区域设有与底座(11)的盒体内腔连通的通槽(11-4)，通槽(11-4)连通所述二次冷却通道(C2)。
  13. 根据权利要求5至12中任一项所述高温干体温度校验仪，还包括：
    风阀，固定于底座(11)的盒体内腔中，且位于冷却风扇(16)的上方。
  14. 根据权利要求5至13任一项所述高温干体温度校验仪，所述底座(11)向一侧延伸出一平面，在该平面上设有一个或多个通风口(11-7)，该通风口连通来自高温炉体底部的外界空气但与冷却通道(C1)不连通。
  15. 根据权利要求1至14任一项所述高温干体温度校验仪，所述控制板模块(2)包括：
    槽式控制板支架(21)，一开关电源(22)装配在控制板支架(21)的槽体内，一控制板(24)安装在控制板支架(21)的槽体顶部开口处，在开关电源(22)和控制板(24)之间安装一隔板(23)。
  16. 根据权利要求15所述高温干体温度校验仪，所述控制板模块(2)还设有导流风扇(25)，导流风扇(25)固定在控制板模块(2)顶部且与控制板模块(2)的槽体连通，控制板模块(2)下方的仪器下支座(5)开设通风槽。
  17. 根据权利要求1至16任一项所述高温干体温度校验仪，所述系统板模块(3)包括由前向后依次固定的触摸屏面板(35)、触摸屏泡棉(34)、触摸液晶屏(33)、触摸液晶屏支架(32)和系统板(31)。
  18. 根据权利要求3至17任一项所述高温干体温度校验仪，所述测量板模块(4)包括：
    测量板(41)，其上设置有TC插座元件(43)和多个测试连接端子(45)；和
    前面板(42)，与测量板对位叠合固定且设有与所述TC插座元件(43)和测试连接端子(45)相匹配的插座孔(44)和多个端子孔(46)。
  19. 根据权利要求18所述的高温干体温度校验仪，所述TC插座元件(43)为热电偶冷端温度补偿结构，包括：
    两块第二均热块(03)，两块第二均热块之间有间距，每一第二均热块(03)上连接一弹片(02)；和
    冷端温度传感器(01)安装在任一弹片(02)的上侧，所述热电偶(05)冷端置于弹片(02)和第二均热块(03)之间且紧贴弹片(02)和第二均热块(03)；
    第二均热块(03)的热容远大于弹片(02)和冷端温度传感器(01)的热容。
  20. 根据权利要求19所述的高温干体温度校验仪，所述弹片(02)为小热容、导热性良好的弹性体，为S形结构，其尾端固定于第二均热块(03)的尾部，弹片(02)的头端上扬，靠近头端的部分自由置于第二均热块(03)的上表面；两块第二均热块(03)之间设置导热胶。
  21. 根据权利要求19或20所述的高温干体温度校验仪，所述热电偶冷端温度补偿结构还包括：
    套帽(04)，为方形盒体，用于容置冷端温度传感器(01)、弹片(02)和第二均热块(03)，套帽(04)的前端设置有两个插口，插口对应弹片(02)与第二均热块(03)之间的位置以插入热电偶(05)冷端；和
    引出线端子(06)，一端插接在测量板(41)上，另一端与从套帽(04)的尾 部引出的冷端温度传感器(01)的引出线连接。
  22. 根据权利要求19至21任一项所述的高温干体温度校验仪，安装于弹片(02)上的冷端温度传感器(01)不与弹片(02)接触的部分加设塑料套或绝热胶；冷端温度传感器(01)通过胶粘接在弹片(02)上，弹片(02)粘接冷端温度传感器(01)的位置两侧分别设置一护板。
  23. 根据权利要求1至22任一项所述高温干体温度校验仪，所述仪器外罩(6)下端开口，整体置于仪器下支座(5)上并与仪器下支座的周侧卡接固定；测量板模块(4)安装在仪器外罩(6)的侧面，系统板模块(3)安装在仪器外罩的侧面。
  24. 根据权利要求23所述高温干体温度校验仪，仪器外罩(6)顶面靠近边侧位置开设上通风槽组(62)；仪器下支座(5)的底面和侧面开设若干通气槽孔。
  25. 根据权利要求24所述高温干体温度校验仪，仪器外罩(6)由塑料材质制成。
  26. 根据权利要求1至25任一项所述高温干体温度校验仪，仪器下支座(5)的底面分布设有若干装配孔，与高温炉体(1)、控制板模块(2)、测量板模块(4)和仪器外罩(6)水平设置的装配部件(9)对位安装。
  27. 根据权利要求1至26任一项所述高温干体温度校验仪，所述控制板模块(2)与高温炉体(1)纵向平行，两者相邻侧面通过炉体侧面装配部件(9)连接固定。
  28. 根据权利要求1至27任一项所述高温干体温度校验仪，所述系统板模块(3)左右两侧面分别通过螺钉与仪器外罩(6)连接，测量板模块(4)顶部通过螺钉与仪器外罩(6)固定。
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CN201820031598.4U CN207675327U (zh) 2018-01-09 2018-01-09 热电偶冷端温度补偿结构
CN201820032809.6U CN207675336U (zh) 2018-01-09 2018-01-09 具有风阀的炉体和干体温度校验仪
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