CN201732129U - Constant-temperature wind-proof test box - Google Patents
Constant-temperature wind-proof test box Download PDFInfo
- Publication number
- CN201732129U CN201732129U CN2010202249567U CN201020224956U CN201732129U CN 201732129 U CN201732129 U CN 201732129U CN 2010202249567 U CN2010202249567 U CN 2010202249567U CN 201020224956 U CN201020224956 U CN 201020224956U CN 201732129 U CN201732129 U CN 201732129U
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- temperature
- test chamber
- constant
- constant temperature
- windproof
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Abstract
The utility model discloses a constant-temperature wind-proof test box, a control unit can control the temperature of a whole wind-proof test box body to be constant at a certain set value through a temperature regulating device and a temperature sensor arranged on the box body, thereby greatly reducing the dependence on the environment temperature of a laboratory, lowering the energy consumption cost, avoiding the vigorous air convection in the box and increasing the stability and the accuracy of tests.
Description
[technical field]
The utility model relates to a kind of windproof test chamber, particularly a kind of windproof test chamber with adjustment and constant temperature function.
[background technology]
Windproof test chamber is mainly used in the thermal property test of various electrical equipment such as light fixture, for provided cross-ventilation strict controlled experimental enviroment by test agent.Windproof test chamber is generally rectangular, top and three sides are the double-level-metal shell that has aperture, the bottom is a sheet metal, the windproof test chamber inside surface scribbles matt paint, and windproof test chamber should have enough spaces, and 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, should be placed the no obvious cross-ventilation environment of 25 ℃ or set point of temperature by test agent.Therefore, in the prior art generally by windproof test chamber being placed 25 ℃ or set point of temperature environment reach above-mentioned requirements.Yet, in the actual tests process, make the environment in windproof test chamber and the case constant about 25 ℃, and air-flow is steady in the case, just very high to the requirement of laboratory temperature control, and accurate temperature controlling is carried out in whole laboratory need consume the bigger energy.
[utility model content]
In order to overcome the defective of prior art, the utility model aims to provide a kind of, constant temperature windproof test chamber that temperature-controlled precision high, easy to operate low for the environment temperature dependency degree.Constant temperature windproof test chamber described in the utility model adopts temperature sensor and temperature control equipment, and the temperature constant that makes the constant temperature windproof test chamber body is in a certain setting value.
Aforesaid a kind of constant temperature windproof test chamber, comprise case top, case at the bottom of, side, prism, be sheet metal at the bottom of its raising middle flask, case top and side are the 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, be provided with well heater and/or refrigerator in the temperature control equipment, temperature control equipment and temperature sensor are electrically connected with 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 that is interconnected that sheet metal is made, and cold wind or hot blast can free flows in prismatic.Casing is provided with and prismatic air inlet and the air outlet that communicates.Temperature control equipment links to each other with air inlet on the casing by guide duct.
Described temperature sensor is arranged on the inboard of casing, is used for monitoring the temperature of casing.When temperature sensor monitors when the temperature of casing is lower than design temperature, the control module that is electrically connected with temperature control equipment starts well heater, the prism at air inlet place sent into hot blast by guide duct by well heater.Hot-air in the air inlet place prism is discharged by air outlet at last with all the other prisms of air flow direction.Conduct the heat to after prismatic wall is heated in the double-decker on side and case top, make the temperature of casing reach setting value.In like manner, when temperature sensor monitors when the temperature of casing is higher than design temperature, thermostatic control module starts refrigerator, refrigerator is sent cold air into prism, make the gentle cooling in side and case top that links to each other with prism, thereby make casing reach design temperature.When in the external airflow cartonning of constant temperature windproof test chamber, through double-deck constant temperature side and case top, heat up automatically or cooling, guarantee that the air themperature in the casing is constant in setting value.
As preferably, regulate the temperature controlling unit and adopt proportion integration differentiation (PID) method, 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, be provided with two or more temperature sensors in the casing, be evenly distributed on box inside, temperature that can comprehensive monitoring casing.
As preferably, described temperature sensor is a thermistor temperature sensor.
As preferably, the well heater in the described temperature control equipment is the nickel-chrome electric heater.
Composition is preferred, and the refrigerator in the described temperature control equipment adopts mechanical compress single-stage refrigeration.
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, better heats and/or refrigeration to reach.
Aforesaid a kind of constant temperature windproof test chamber by accurately temperature control of temperature control equipment, makes spin manifold temperature constant in setting value, and no violent cross-ventilation in the guard box, increases measuring stability and accuracy.
[description of drawings]
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 synoptic diagram.
[embodiment]
As shown in Figure 1, a kind of constant temperature windproof test chamber, comprise at the bottom of case top 1, the case 2, side 3, door 4, prismatic 5,2 is sheet metal at the bottom of its raising middle flask, 1 and 4 side 3, case top is a double-decker, double casing adopts the metal of perforate to make, and is spaced apart 150mm between two-layer, and the hole clocklike distributes, the aperture is 1.5mm, and the area in hole accounts for 40% of every layer of housing total area.Door 4 is established in the side of front 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 the windproof test chamber 2 below, comprise well heater 11, refrigerator 12 and supply air system 14 etc.Wherein the well heater in the temperature control equipment 6 11 is the 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 the case 2, are connected with prismatic 5.Temperature control equipment 6 is connected by guide duct 8 with air inlet 9.Described temperature sensor 7 is a thermistor temperature sensor, be arranged at the bottom of the case 2 top and case top 1 below.Control module 13 be arranged at the bottom of the windproof test chamber 2 below, temperature sensor 7, temperature control equipment 6 are electrically connected with control module 13 respectively.
In the constant temperature windproof test chamber process of the test, when the temperature that monitors casing when temperature sensor 7 is lower than 25 ℃ of design temperatures, well heater 11 in the control module 13 start-up temperature regulating devices 6, supply air system 14 is sent into air inlet 9 with hot-air by guide duct 8 and is arrived in prismatic 5, hot-air is discharged outside the case at air outlet 10 at last with each prism 5 of air flow direction.Because the good thermal conductivity of metal transfers heat to side 3 and case top 1 after prism 5 is heated, make the gentle intensification of whole box body, thereby reach set temperature value.In like manner, when temperature sensor 7 monitors spin manifold temperature when being higher than 25 ℃ of design temperatures, the refrigerator 12 in the control module 13 start-up temperature regulating devices 6 makes the casing cooling by the cold airs in prismatic 5.Temperature control equipment 6 makes it constant in setting value according to the temperature of the monitoring situation control casing of temperature sensor 7.When the air outside the casing flowed in the casing through double-deck constant temperature side 3 and case top 1, temperature can raise or reduce automatically, made temperature constant in the casing at established standards.Control module 12 adopts proportion integration differentiation (PID) method, and 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 (6)
1. constant temperature windproof test chamber, comprise (2), side (3) at the bottom of case top (1), the case, prismatic (5), (2) are sheet metal at the bottom of its raising middle flask, case top (1) and side (3) is the 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), wherein, be provided with well heater (11) and/or refrigerator (12) in the temperature control equipment (6), temperature control equipment (6) and temperature sensor (7) are electrically connected with control module (13) respectively.
2. a kind of constant temperature windproof test chamber as claimed in claim 1 is characterized in that, described temperature control equipment (6) is arranged on the casing outside.
3. a kind of constant temperature windproof test chamber as claimed in claim 1 is characterized in that, the hollow tubular that is interconnected that described prism (5) is made for sheet metal.
4. as claim 1 or 3 described a kind of constant temperature windproof test chambers, it is characterized in that casing is provided with air inlet (9) and the air outlet (10) that communicates with prismatic (5).
5. 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.
6. 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 the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202249567U CN201732129U (en) | 2010-06-10 | 2010-06-10 | Constant-temperature wind-proof test box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202249567U CN201732129U (en) | 2010-06-10 | 2010-06-10 | Constant-temperature wind-proof test box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201732129U true CN201732129U (en) | 2011-02-02 |
Family
ID=43523288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202249567U Expired - Lifetime CN201732129U (en) | 2010-06-10 | 2010-06-10 | Constant-temperature wind-proof test box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201732129U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871999A (en) * | 2010-06-10 | 2010-10-27 | 杭州远方光电信息有限公司 | Constant temperature windproof test chamber |
| CN106020288A (en) * | 2016-06-29 | 2016-10-12 | 爱佩仪中测（成都）精密仪器有限公司 | Workshop structure for precision measurement |
| CN110161400A (en) * | 2019-05-31 | 2019-08-23 | 济南德欧雅安全技术有限公司 | A kind of test cabinet and test method for test memory component |
-
2010
- 2010-06-10 CN CN2010202249567U patent/CN201732129U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871999A (en) * | 2010-06-10 | 2010-10-27 | 杭州远方光电信息有限公司 | Constant temperature windproof test chamber |
| CN101871999B (en) * | 2010-06-10 | 2014-04-16 | 杭州远方光电信息股份有限公司 | Constant temperature windproof test chamber |
| CN106020288A (en) * | 2016-06-29 | 2016-10-12 | 爱佩仪中测（成都）精密仪器有限公司 | Workshop structure for precision measurement |
| CN110161400A (en) * | 2019-05-31 | 2019-08-23 | 济南德欧雅安全技术有限公司 | A kind of test cabinet and test method for test memory component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110202 |