CN101871999B - Constant temperature windproof test chamber - Google Patents
Constant temperature windproof test chamber Download PDFInfo
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- CN101871999B CN101871999B CN201010199495.7A CN201010199495A CN101871999B CN 101871999 B CN101871999 B CN 101871999B CN 201010199495 A CN201010199495 A CN 201010199495A CN 101871999 B CN101871999 B CN 101871999B
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Abstract
The invention discloses a constant temperature windproof test chamber. A control unit controls the temperature of the whole windproof test chamber body a certain set value constantly by a temperature regulating device and a temperature sensor which are arranged on the chamber body so as to greatly reduce independence on the temperature of the laboratory environment and reduce energy consumption cost. No vigorous air convection is generated in the chamber body so as to increase stability and accuracy of a test.
Description
[technical field]
The present invention relates to a kind of windproof test chamber, particularly a kind of windproof test chamber with temperature adjusting and temperature incubation function.
[background technology]
Windproof test chamber is mainly used in the thermal property test of the various electrical equipment such as light fixture, is the strict controlled experimental enviroment of tested offering sample cross-ventilation.Windproof test chamber is generally rectangular, top and three sides are for opening foraminate double-level-metal shell, bottom is sheet metal, windproof test chamber inside surface scribbles matt paint, and windproof test chamber should have sufficient space, windproof test chamber inside surface and maximum should be maintained a certain distance between any position of test agent.In order to obtain good measurement result, by test agent should be placed in 25 ℃ or set point of temperature without obvious cross-ventilation environment.Therefore, in prior art, generally by windproof test chamber being placed in to 25 ℃ or set point of temperature environment, reach above-mentioned requirements.Yet, in actual tests process, make the environment in windproof test chamber and case constant in 25 ℃ of left and right, and in case, air-flow is steady, the requirement that laboratory temperature is controlled is just very high, and accurate temperature controlling is carried out in whole laboratory need to consume the larger energy.
[summary of the invention]
In order to overcome the defect of prior art, the present invention aims to provide a kind of, constant temperature windproof test chamber that temperature-controlled precision high, easy to operate low for environment temperature dependency degree.Constant temperature windproof test chamber of the present invention adopts temperature sensor and temperature control equipment, makes the temperature constant of constant temperature windproof test chamber body in a certain setting value.
A kind of constant temperature windproof test chamber as above, at the bottom of comprising case top, case, side, prism, is sheet metal at the bottom of its raising middle flask, and case top and side are double-layer drilling metal plate structure.It is characterized in that, described constant temperature windproof test chamber is provided with temperature control equipment, temperature sensor and control module, wherein, is provided with well heater and/or refrigerator in temperature control equipment, and temperature control equipment and temperature sensor are electrically connected to control module respectively.
Described temperature control equipment is arranged on the external side of windproof test chamber.The prism of constant temperature windproof test chamber casing is the hollow tubular being interconnected that sheet metal is made, and cold wind or hot blast can free flows in prism.Casing is provided with air inlet and the air outlet communicating with prism.Temperature control equipment is connected with the air inlet on casing by guide duct.
Described temperature sensor is arranged on the inner side of casing, is used for monitoring the temperature of casing.When temperature sensor monitors is to the temperature of casing during lower than design temperature, the control module startup well heater being electrically connected to temperature control equipment, the prism at air inlet place sent into hot blast by guide duct by well heater.Hot-air in air inlet place prism, with all the other prisms of air flow direction, is finally discharged by air outlet.After the wall of prism is heated, conduct the heat in the double-decker on side and case top, make the temperature of casing reach setting value.In like manner, when temperature sensor monitors is to the temperature of casing during higher than design temperature, thermostatic control module starts refrigerator, and refrigerator is sent cold air into prism, make the gentle cooling in side and case top being connected with prism, thereby make casing reach design temperature.In the time of in the external air stream cartonning of constant temperature windproof test chamber, through double-deck constant temperature side and case top, automatic heating or cooling, guarantee that the air themperature in casing is constant in setting value.
As preferably, regulate control module adoption rate integral differential (PID) method of temperature, PID is comparatively simple and intelligent control method.Wherein the measured value of corresponding temperature sensor is the input quantity of PID, and refrigeration plant and/or firing equipment are the output quantities of PID.
As preferably, in casing, be provided with two or more temperature sensors, be evenly distributed on box inside, temperature that can comprehensive monitoring casing.
As preferably, described temperature sensor is thermistor temperature sensor.
As preferably, the well heater in described temperature control equipment is nickel-chrome electric heater.
Preferably, the refrigerator in described temperature control equipment adopts mechanical compress single-stage refrigeration in composition.
As preferably, described temperature control equipment also comprises supply air system.
As preferably, described temperature control equipment also comprises evaporator, and evaporator can be evenly distributed in the prism of casing, to reach, better heats and/or refrigeration.
A kind of constant temperature windproof test chamber as above, by temperature control equipment accurately temperature control, make spin manifold temperature constant in setting value, and in guard box without violent cross-ventilation, increase stability and the accuracy measured.
[accompanying drawing explanation]
Fig. 1 is a kind of constant temperature windproof test chamber outside drawing.
Fig. 2 is a kind of constant temperature windproof test chamber inner structure schematic diagram.
[embodiment]
As shown in Figure 1, a kind of constant temperature windproof test chamber, comprise at the bottom of case top 1, case 2, side 3, door 4, prism 5, at the bottom of its raising middle flask, 2 is sheet metal, 1 and 4 side 3, case top is double-decker, double casing adopts the metal of perforate to make, and is spaced apart 150mm, the regular distribution in hole between two-layer, aperture is 1.5mm, and the area in hole accounts for 40% of every layer of housing total area.Door 4 is established in side before in 4 sides 3.
As shown in Figure 2, a kind of constant temperature windproof test chamber, also comprises temperature control equipment 6, temperature sensor 7, guide duct 8, air inlet 9, air outlet 10 and control module 13.In the present embodiment, temperature control equipment 6 be arranged at the bottom of windproof test chamber 2 below, comprise well heater 11, refrigerator 12 and supply air system 14 etc.Wherein the well heater in temperature control equipment 6 11 is nickel-chrome electric heater, and refrigerator 12 adopts mechanical compress single-stage refrigeration, comprises compressor, condenser, throttling valve and evaporator etc.Air inlet 9 and air outlet 10 are arranged at the bottom of case 2, are connected with prism 5.Temperature control equipment 6 is connected by guide duct 8 with air inlet 9.Described temperature sensor 7 is thermistor temperature sensor, be arranged at the bottom of case 2 above and case push up 1 below.Control module 13 be arranged at the bottom of windproof test chamber 2 below, temperature sensor 7, temperature control equipment 6 are electrically connected to control module 13 respectively.
In constant temperature windproof test chamber process of the test, the temperature that monitors casing when temperature sensor 7 is during lower than 25 ℃ of design temperatures, well heater 11 in control module 13 start-up temperature regulating devices 6, supply air system 14 is sent into air inlet 9 by hot-air by guide duct 8 and is arrived in prism 5, hot-air, with each prism 5 of air flow direction, is finally discharged outside case at air outlet 10.Due to the good thermal conductivity of metal, after being heated, prism 5 transfers heat to side 3 and case top 1, and make the gentle intensification of whole casing, thereby reach set temperature value.In like manner, when temperature sensor 7 monitors spin manifold temperature higher than 25 ℃ of design temperatures, the refrigerator 12 in control module 13 start-up temperature regulating devices 6, lowers the temperature casing by the cold air in prism 5.Temperature control equipment 6 is controlled the temperature of casing according to the monitoring situation of temperature sensor 7, make it constant in setting value.When air outside casing flows in casing through double-deck constant temperature side 3 and case top 1, temperature can automatically raise or reduce, and makes temperature constant in casing at established standards.Control module 12 adoption rate integral differential (PID) methods, PID is comparatively simple and intelligent control method.Wherein the measured value of corresponding temperature sensor 7 is input quantities of PID, and well heater 11 and/or refrigerator 12 are output quantities of PID.
Claims (3)
1. a constant temperature windproof test chamber, comprise case top (1), at the bottom of case (2), side (3), prism (5), at the bottom of its raising middle flask, (2) are sheet metal, case top (1) and side (3) is double-layer drilling metal plate structure, it is characterized in that, described constant temperature windproof test chamber is provided with temperature control equipment (6), temperature sensor (7) and control module (13), described temperature control equipment (6) is arranged on casing outside, wherein, in temperature control equipment (6), be provided with well heater (11) and/or refrigerator (12), temperature control equipment (6) and temperature sensor (7) are electrically connected to control module (13) respectively, casing is provided with air inlet (9) and the air outlet (10) communicating with prism (5), the hollow tubular being interconnected that described prism (5) is made for sheet metal, prism (5) is connected with side (3) with case top (1), the wall of prism (5) and double-deck side and the heat interchange of case top, automatic heating or cooling, make temperature constant in casing in setting value.
2. a kind of constant temperature windproof test chamber as claimed in claim 1, is characterized in that, temperature sensor (7) is arranged on box inside.
3. a kind of constant temperature windproof test chamber as claimed in claim 1, is characterized in that, is provided with two or more temperature sensors (7) in casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010199495.7A CN101871999B (en) | 2010-06-10 | 2010-06-10 | Constant temperature windproof test chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010199495.7A CN101871999B (en) | 2010-06-10 | 2010-06-10 | Constant temperature windproof test chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101871999A CN101871999A (en) | 2010-10-27 |
| CN101871999B true CN101871999B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010199495.7A Active CN101871999B (en) | 2010-06-10 | 2010-06-10 | Constant temperature windproof test chamber |
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| CN (1) | CN101871999B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091577A (en) * | 2013-01-06 | 2013-05-08 | 中国电力科学研究院 | Direct current insulator ionic migration test equipment |
| CN103353564B (en) * | 2013-07-08 | 2015-07-15 | 工业和信息化部电子第五研究所 | Intermittent life testing device |
| CN106610368A (en) * | 2015-10-26 | 2017-05-03 | 云南电网有限责任公司昭通供电局 | Testing device used for rapid detection of atmosphere environment metal corrosion behavior |
| CN106245831A (en) * | 2016-08-09 | 2016-12-21 | 金粤幕墙装饰工程有限公司 | Integral intelligent constant temperature ecological curtain wall system and temperature control method |
| CN108107288B (en) * | 2017-11-17 | 2024-01-09 | 成都新泰高科技术有限公司 | Vehicle-mounted engineering machinery fault diagnosis instrument |
| CN110161400B (en) * | 2019-05-31 | 2020-09-22 | 济南德欧雅安全技术有限公司 | Test chamber and test method for testing memory component |
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| CN1940796A (en) * | 2005-09-28 | 2007-04-04 | 诠博国际实业有限公司 | Analog testing box at natural environmental convective temperature |
| CN101308179A (en) * | 2008-07-11 | 2008-11-19 | 华北电力大学（保定） | Powder dust electrical behavior multi- behavior simulation test system |
| CN101915880A (en) * | 2010-07-26 | 2010-12-15 | 南京电气（集团）有限责任公司 | DC insulator ionic migration test synthesis system |
| CN201732129U (en) * | 2010-06-10 | 2011-02-02 | 杭州远方光电信息股份有限公司 | Constant-temperature wind-proof test box |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07270303A (en) * | 1994-04-01 | 1995-10-20 | Katoo:Kk | Environment tester |
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2010
- 2010-06-10 CN CN201010199495.7A patent/CN101871999B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1940796A (en) * | 2005-09-28 | 2007-04-04 | 诠博国际实业有限公司 | Analog testing box at natural environmental convective temperature |
| CN101308179A (en) * | 2008-07-11 | 2008-11-19 | 华北电力大学（保定） | Powder dust electrical behavior multi- behavior simulation test system |
| CN201732129U (en) * | 2010-06-10 | 2011-02-02 | 杭州远方光电信息股份有限公司 | Constant-temperature wind-proof test box |
| CN101915880A (en) * | 2010-07-26 | 2010-12-15 | 南京电气（集团）有限责任公司 | DC insulator ionic migration test synthesis system |
Non-Patent Citations (2)
| Title |
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| International Electrotechnical Commission.Annex D Draught-proof enclosure.《IEC60598-1 Luminaires–Part 1:General requirements and tests》.2006, * |
| JP特开平7-270303A 1995.10.20 |
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| CN101871999A (en) | 2010-10-27 |
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