CN1789937A - Temperature environment test apparatus using heat conduction and control method thereof - Google Patents
Temperature environment test apparatus using heat conduction and control method thereof Download PDFInfo
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- CN1789937A CN1789937A CN 200410098806 CN200410098806A CN1789937A CN 1789937 A CN1789937 A CN 1789937A CN 200410098806 CN200410098806 CN 200410098806 CN 200410098806 A CN200410098806 A CN 200410098806A CN 1789937 A CN1789937 A CN 1789937A
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Abstract
The invention discloses a temperature environment experimental box and control method, which comprises the following steps: connecting multiple experimental boxes into one row; transporting the detected object into each experimental box sequently through transportation device; setting specific temperature of each detected object in the different experimental boxes. The experimental box contains hot-and-cold board, door and control part, wherein the water cooling sleeve is set under the hot-and-cold board, which is attached on at least one laminate thermoelectric element within temperature sensor; the door is set on the hot-and-cold board, which is switched by cylinder within probe device of needle and temperature sensor; the control part connects to control the temperature sensor and thermoelectric element and outer computer.
Description
Technical field
The present invention relates to the temperature environment test apparatus of the heat exchange pattern that uses cold and hot plate, in more detail, relate to the chamber (Chamber) that opens and closes and be provided with a heat exchange pattern that is constituted of probe by cylinder by reaching attached to the cold and hot plate of thermoelectric element, and a plurality of above-mentioned chamber tandems are placed to row, by conveying device measured body is delivered to each chamber successively, be configured to specified temp, provide in the chamber of the temperature environment that has nothing in common with each other at each, measure the temperature environment test apparatus and the control method thereof of the temperature characterisitic of measured body.
Background technology
Existing temperature environment test apparatus is put into very big volume with many measured bodies, causes temperature variation, and the atmospheric temperature of determination test case inside has served as predicted time then, the temperature of judging measured body with begin to measure after atmospheric temperature is identical.
But this is not the correct temperature of measured body, and along with temperature sensor location, kind difference, the temperature deviation of relative broad range takes place, so carry out very difficulty of correct thermometric.So in the exigent occasion of some temperature measurement accuracies, and be not suitable for using.
That is, use the forced convertion mode of inner air when measuring the temperature variation of measured body, flowing and the different and reduction of the temperature uniformity that causes in the position of measured body of air all might cause the serious decline problem of measured body temperature precision.Secondly, in the atmospheric temperature that changes bigger space rapidly, and make the temperature of measured body identical with atmospheric temperature, need expend suitable time and heat, and the not high equipment of utilization rate that needs some only when being adjusted to the specified temp variation and continuing to keep this state, just to use, thereby cause the waste of system, and can cause noise and environmental problem as the compressor of cooling usefulness.
In addition, when measuring, can't get rid of the temperature measurement error that causes by intrinsic probe impedance (Probe Impedance) error of many probes (Multi Probing) system, and need jumbo power supply when using single power supply to supply many measured bodies.Also have, when selecting a measured body to carry out thermometric in a plurality of measured bodies, it selects circuit to become very complicated with the characteristic of measured body.
In addition, need the temperature of wide region is controlled, it is very complicated that its control device becomes, and its temperature control algorithm is all different when subzero low temperature, normal temperature and high temperature (more than 60 degree), and need be designed to reduce the generation of cold or superheating phenomenon.
Summary of the invention
The present invention is intended to address the above problem, a kind of heat conducting temperature environment test apparatus and control method thereof utilized is provided, specifically be, precision temperature control and heat exchange pattern by thermoelectric element-cold and hot plate, correctly pass on design temperature to overcome the shortcoming of existing convection type to measured body, and a plurality of chambers that will set a mutually different temperature for are placed to row, move a plurality of measured bodies, the temperature characterisitic of simultaneously measurable under the different temperatures environment.
A kind ofly utilize heat conducting temperature environment test apparatus, it is characterized by:
A plurality of Homothermal Proof Box 50 of keeping specific temperature and being controlled individually are arranged in row;
Be provided with conveying device 18, this conveying device 18 will be finished the measured body 13 that temperature characterisitic measures from above-mentioned each chamber 50 and move to the chamber 50 of setting another temperature for.
Wherein, chamber 50 comprises:
Cold and hot plate 3, its below is provided with water collar 5, and cold and hot plate 3 is attached to by thermoelectric element stacked more than 1 top, and in be provided with control with temperature sensor 2;
A kind of control method of utilizing heat conducting temperature environment test apparatus, a plurality of chambers 50 of the temperature that has nothing in common with each other are set in utilization for, successively measured body 13 is carried out the mensuration of temperature characterisitic, it is characterized in that, said temperature environmental test equipment control method comprised with the next stage:
When each chamber 50 temperature that connects into row reach design temperature, transmit the stage of waiting signal to external computer from control part 6;
Make connection each device on computers enter waiting status, and send movement order, make 10 stages that move up of door to conveying device 18;
Starting conveying device 18 moves to measured body (13) chamber 50 and starts the stage that cylinder 17 moves down door 10;
Whether judge to carry normally, simultaneously its signal is sent to computer, and the stage of feeding back;
The temperature that serviceability temperature sensor (14) is read whole measured bodies 13 is revised it, sends from being introduced into measured body 13 in the design temperature error range to begin stage of measuring heat command and measuring;
The stage that the data of being measured are collected and stored.
The present invention couples together by a plurality of chambers 50 that will be set at different temperatures, and form different temperature provinces, by moving rapidly and accurate detection of measured body 13, realize accurate temperature measuring, enhance productivity thereby can reach, accurately the purpose of measuring.The microminiature temperature environment test apparatus 100 that utilizes thermoelectric element 1 is compared with existing jumbo temperature environment test apparatus 100, its little power consumption, and temperature control is easy.In fact, be delivered to measured body 13 with heat exchange pattern, only control the temperature of cold and hot plate 3, reduced the waste of heat, air flow is suppressed at minimum level, the thermal loss that this design can avoid cross-ventilation to cause by heat with cold and hot plate 3.Temperature test chamber 50 in the temperature environment test apparatus 100 is because of only controlling single temperature, so control device is simple in structure, and its control algolithm is also simpler.
In addition, during mensuration, with existing that a large amount of measured bodies 13 are carried out method for measuring is different, in a chamber 50, put into a measured body 13 and measure, can satisfy power supply that measured body 13 consumes and the gauging instrument that is suitable for measured body 13 characteristics so only need provide.Also has temperature to measured body 13, rather than the temperature of chamber 50, measure and write down and indicate the beginning of mensuration, like this, avoided not having in the prior art problem of prediction latency time, and had nothing to do, and the measured body 13 that arrives design temperature has earlier been measured with temperature uniformity, temperature accuracy, compared with method for measuring in order, can improve finding speed.
Description of drawings
Fig. 1 is the front view of the chamber among the present invention;
Fig. 2 is the casing rear view of the chamber among the present invention;
Fig. 3 is the constitutional diagram of the moving part among the present invention;
Fig. 4 is for connecting into the temperature environment test apparatus synoptic diagram that row form by a plurality of chambers among the present invention;
Fig. 5 is the control part block diagram among the present invention;
Fig. 6 is the control algolithm process flow diagram of the temperature environment test apparatus among the present invention.
The reference numeral explanation:
1: thermoelectric element 2: control temperature sensor 3: cold and hot plate
4: cooling water pipe 5: water collar 6: control part
7: door bracket 8: upper bracket 9: casing
10: door 11: no moisture gas input port 12: probe
13: measured body 14: temperature sensor 15: probe apparatus
16: moving part 17: cylinder 18: conveying device
19: temperature setting operation portion 20: state display part
50: chamber 100: temperature environment test apparatus
Embodiment
Followingly structure of the present invention and function are elaborated with reference to accompanying drawing.
As shown in Figure 1 and Figure 2, heat conducting temperature environment test apparatus 100 architectural features of utilizing among the present invention are, wherein chamber 50 comprises: casing 9, promptly thermoelectric element 1 below stacked secondary thermoelectric element 1, above a described thermoelectric element 1, be provided with the aluminum cold and hot plate 3 of built-in control with temperature sensor 2, establish the water collar 5 of cooling water pipe 4 in below secondary thermoelectric element 1, being provided with, be provided with control part 6 in water collar 5 bottoms, and the outside is provided with a plurality of door (Gate) supports 7, and door bracket 7 upper ends are provided with upper bracket 8; Moving part 16, the casing chain door 10 that is lower opening is arranged to and can be moved up and down in door bracket 7 inside of above-mentioned casing 9, door 10 tops are provided with no moisture gas input port 11, make by a plurality of built-in spring type probes 12 can freely move up and down within the specific limits with the probe apparatus 15 that the temperature sensor 13 of measuring measured body 13 temperature constitutes; Cylinder 17 is arranged on upper bracket 8 places of above-mentioned casing 9 upper ends, and the one end is fixed on door 10 places that are positioned at casing 9 inboards, thereby can allow door 10 move up and down; A plurality of above-mentioned chambers 50 are arranged in row, after by conveying device 18 measured body 13 being finished the mensuration of temperature characterisitic from the chamber 50 that is set at a temperature, move on the cold and hot plate 3 in other chamber of setting other temperature for 50, like this, measured body 13 is displaced into each chamber 50 that is set at different temperatures successively, thereby carries out the mensuration of temperature characterisitic.
Symbol 19 is the design temperature operating portion among Fig. 5, and 20 is state display part.
The occasion that has dual refrigerating structure for the thermoelectric element 1 of making way for the cold and hot plate of aluminum 3 belows keeps low temperature (40 degree～0 degree), thermoelectric element 1 and 1 two thermoelectric elements of secondary thermoelectric element need be set, when being used for normal temperature and high temperature, only enable in the above-mentioned thermoelectric element 1.
The cooling heating element of thermoelectric element 1 for having amber ear card (Peltier) effect according to the supply voltage polarity that is provided, realized cooling and heating.The dual refrigerating structure of thermoelectric element 1 is, the heat of the cold and hot plate 3 that thermoelectric element 1 is absorbed as cooling element, utilizes the high-temperature difference to be delivered to water collar 5 rapidly by secondary thermoelectric element 1, thereby can reduce and keep the temperature of cold and hot plate 3 rapidly.
The cold and hot plate 3 of aluminum preserve and the heat of maintaining heat electric device 1 in, make heat transferred rapidly to measured body 13 possibility that becomes.In addition, in the control that is located in the cold and hot plate 3 be delivered to control part 6 with the Current Temperatures that 2 of temperature sensors play cold and hot plate 3, make cold and hot plate 3 keep the effect of design temperature.Like this, each chamber 50 can by cold and hot plate 3 and in be located at wherein control with temperature sensor 2, keep certain temperature always.
As shown in Figure 3, door 10 is provided with the probe apparatus 15 that is made of probe 12 and the temperature sensor 14 of monitoring measured body 13 temperature, and it is responsible for to measured body input and output power supply and signal.According to measured body 13 kind differences, the quantity of probe 12 is also different, but the thermoelectricity of being equipped is the temperature of the temperature sensor 14 The real time measure measured bodies of other kinds occasionally, and by dropping into a certain amount of high-purity nitrogen in the no moisture gas input port 11 that is formed on door 10 upper ends, make minimizing of water smoke, and play effect on moisture extraction.
That is, entering of the outside moisture when preventing that door 10 from opening and closing supplied no moisture gas incessantly to door 10 inside.
As shown in Figure 5, control part 6 comprises temperature setting operation portion 19 that is used for design temperature and the state display part 20 that is constituted and shown Current Temperatures and design temperature by light emitting diode (LED), measure the temperature of the cold and hot plate 3 of aluminum, with width modulation (PWM) mode the supply power of thermoelectric element 1 is controlled, and played the effect of the polarity of upset supply power.And, with arrive design temperature whether and error condition etc. be transferred in the outside computing machine.
Row are arranged in a plurality of each chamber 50 that is made of above-mentioned parts, and a temperature is respectively set in each chamber 50 for, to measure the temperature characterisitic of carrying the measured body 13 of coming.
Be used for measured body 13 is transferred to successively that the device of each chamber 50 is general to adopt small-sized conveying device 18.It can use travelling belt or pick up and place modes such as (Pick and Place) humanoid robot.
In addition, probe apparatus 15 is made of the probe 12 of the various gauging instruments of the temperature that can judge measured body 13 and properties of product, and be installed in the door 10, and move up and down with door 10, and by the tight contact between measured body 13 and the cold and hot plate 3, can transmit heat to measured body 13 rapidly, the temperature of reading measured body 13 simultaneously is with the beginning of indication mensuration.
As mentioned above, can use a chamber 50 to measure the temperature characterisitic of measured body 13, also can be that a plurality of chambers 50 are arranged in row, the product that need are carried out temperature environment test is put into after the chamber 50 that is redefined for the uniform temperature zone measures, judges, moves on to other chamber 50 that is configured to another temperature province again and measures.Like this, the raising of the temperature changing speed by measured body 13, and reduce the error at measurment that non-uniform temperature, the temperature deviation in the temperature province, many probes that existing temperature test chamber occurred cause, reach the purpose of micrometric measurement.
Fig. 4 represents in order to carry out 4 kinds of different temperatures environment, and will set the embodiment that 4 chambers of different temperatures are arranged in row and connect for.That is, each chamber connects into row, and the conveying device of being made up of step motor, gear and driving-belt 18 is set.The control algolithm of embodiment among Fig. 4 as shown in Figure 6.
Connect AC power respectively for each chamber 50, and each chamber 50 transmits waiting signal and rub-out signal to control part 6, temperature control is carried out in each chamber 50 respectively.Each chamber 50 that connects into row transmits waiting signal from the computing machine of control part 6 to the outside when reaching design temperature.And when chamber 5 temperature control generation problem, then transmit rub-out signal, the running of request halt system.
Device as connection is a waiting status, and computing machine then sends movement order to conveying device 18.In case receive movement order, just start cylinder 17, door 10 is moved up, start conveying device 18 then, restart cylinder 17, door 10 is moved down, and pass on conveying whether normal signal to computing machine.
As mentioned above, by above-mentioned a series of course of conveying, the measured body 13 on the conveying device moves to chamber 50 inside, and a plurality of measured body 13 moves simultaneously across certain intervals, can carry out the temperature characterisitic test simultaneously in the chamber 50 of different set temperature.That is, a plurality of measured bodies 13 are delivered to respectively in each chamber 50, and 50 li of each chambers are only put into a measured body 13 and measured like this.
The waiting signal that computing machine transmits according to each control part 6, read the temperature of measured body 13 by temperature sensor 14, and revise, when if it is worth in the specification error scope of design temperature, then send measured body 13 is carried out the order that temperature characterisitic is measured, and the survey data are collected and stored to each chamber 50.
Here, as shown in Figure 4, when constituting by 4 chambers 50,4 measured bodies 13 are measured wait respectively in 4 chambers 50, from being introduced into the mensuration that measured body 13 in the specification error scope begins to carry out temperature characterisitic, treat all measure finish after, whole measured bodies 13 are moved.Save minute than measuring in order like this.
After the mensuration of each temperature province is all over, give an order to conveying device 18 again, repeat aforesaid operations.
As mentioned above, the present invention is at TCXO (temperature compensating crystal oscillator, TemperatureCompensated Crystal Oscillator) and quartz crystal unit (Crystal Unit) etc. need carry out temperature detection and confirm according to correct temperature in the production of characteristic, can enhance productivity, and minimizing power consumption, and provide good operating environment.
Claims (4)
1, a kind ofly utilize heat conducting temperature environment test apparatus, it is characterized by:
A plurality of Homothermal Proof Box (50) of keeping specific temperature and being controlled individually are arranged in row;
Be provided with conveying device (18), this conveying device (18) will be finished the measured body (13) that temperature characterisitic measures from above-mentioned each chamber (50) and move to the chamber (50) of setting another temperature for.
2, utilize heat conducting temperature environment test apparatus according to claim 1, it is characterized by, chamber (50) comprising:
Cold and hot plate (3), its below is provided with water collar (5), and cold and hot plate (3) is attached to by thermoelectric element stacked more than (1) top, and in be provided with control with temperature sensor (2);
Door (10) is located at above-mentioned cold and hot plate (3) top and passes through cylinder (17) switching, and connects and be provided with wherein by the probe apparatus (15) that a plurality of probes (12) and temperature sensor (14) constitute;
Control part (6) connects the computing machine of above-mentioned control with temperature sensor (2) and thermoelectric element (1) and outside.
3, utilize heat conducting temperature environment test apparatus as described in claim 2, it is characterized by, door (10) is provided with the no moisture gas input port (11) that is used to drop into demist and the no moisture gas of dehumidifying usefulness.
4, a kind of control method of utilizing heat conducting temperature environment test apparatus, a plurality of chambers (50) of the temperature that has nothing in common with each other are set in utilization for, successively measured body (13) is carried out the mensuration of temperature characterisitic, it is characterized in that, said temperature environmental test equipment control method comprised with the next stage:
When connecting into each chamber (50) that is listed as when temperature reaches design temperature, transmit the stage of waiting signal to external computer from control part (6);
Make connection each device on computers enter waiting status, and send movement order to conveying device (18), the stage that door (10) is moved up;
Starting conveying device (18) moves to measured body (13) chamber (50) and starts the stage that cylinder (17) moves down door (10);
Whether judge to carry normally, simultaneously its signal is sent to computer, and the stage of feeding back;
Serviceability temperature sensor (14) is read the temperature of whole measured bodies (13), and it is revised, and sends from being introduced into measured body (13) in the design temperature error range to begin stage of measuring heat command and measuring;
The stage that the data of being measured are collected and stored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410098806 CN1789937A (en) | 2004-12-13 | 2004-12-13 | Temperature environment test apparatus using heat conduction and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410098806 CN1789937A (en) | 2004-12-13 | 2004-12-13 | Temperature environment test apparatus using heat conduction and control method thereof |
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| Publication Number | Publication Date |
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| CN1789937A true CN1789937A (en) | 2006-06-21 |
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| CN 200410098806 Pending CN1789937A (en) | 2004-12-13 | 2004-12-13 | Temperature environment test apparatus using heat conduction and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021408A (en) * | 2015-08-12 | 2015-11-04 | 山东科大微机应用研究所有限公司 | Heating-device-contained roller opposite-force type loading brake check-out console and using method thereof |
-
2004
- 2004-12-13 CN CN 200410098806 patent/CN1789937A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021408A (en) * | 2015-08-12 | 2015-11-04 | 山东科大微机应用研究所有限公司 | Heating-device-contained roller opposite-force type loading brake check-out console and using method thereof |
| CN105021408B (en) * | 2015-08-12 | 2017-08-08 | 山东科大微机应用研究所有限公司 | Drum reaction type loading brake test bench and its application method with heater |
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