CN205352910U - Radiation combined test device is shone with controllable light to controllable temperature humidity - Google Patents
Radiation combined test device is shone with controllable light to controllable temperature humidity Download PDFInfo
- Publication number
- CN205352910U CN205352910U CN201620025507.7U CN201620025507U CN205352910U CN 205352910 U CN205352910 U CN 205352910U CN 201620025507 U CN201620025507 U CN 201620025507U CN 205352910 U CN205352910 U CN 205352910U
- Authority
- CN
- China
- Prior art keywords
- temperature humidity
- control system
- combined test
- light radiation
- test apparatus
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model provides a radiation combined test device is shone with controllable light to controllable temperature humidity, is including gooing into the formula box, temperature and humidity sensor A, temperature control system, humidification dehumidification system, fan group, a control box, be provided with PLC control system in the control box, PLC control system receives temperature and humidity sensor A's data message and controls temperature control system, humidification dehumidification system soft breeze unit, still include portable sample frame, simulation illumination light source, it places to be surveyed the sample on the portable sample frame, and be provided with light intensity sensor on the survey sample, PLC control system receives light intensity sensor's the data message and the illumination power of control simulation illumination light source. Test device carries out atmospheric control when can carry out illumination radiation test to the sample, provides more reliable tentation data to better life and the ageing process of declaring the product in advance.
Description
Technical field
This utility model relates to environmental test field, more particularly, to a kind of controllable temperature humidity and the comprehensive light radiation assay device of controlled light radiation.
Background technology
Light radiation test is a kind of manual simulation environmental test, and it is tested product or relatively use in lower atmosphere or without influence when being exposed to solar radiation during covering storage on ground by simulating.In solar radiation test, the spectrum of xenon lamp is closest to natural sunlight, therefore generally selects xenon lamp to carry out light radiation test.The accuracy being critically depend on experimental condition of light radiation success of the test and the reasonability of test method.
For requiring increasingly higher auto parts and components product, test, by light radiation, the service life examining product merely and aging effect can not meet demand, and some auto parts and components product is oversize, it can not be carried out direct simulation test by conventional illumination radiation test case.Consider that in environment, product can be had undesirable effect by the change of humiture equally, therefore a kind of assay device of especially desirable design, it can also be carried out Humidity Test while full-sized car parts product can be carried out light radiation test, and experimental condition facilitates controlled, result of the test is rationally reliable.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of controllable temperature humidity and controlled light radiation combined test apparatus, both light radiation test and the Humidity Test of small-size product test specimen can have been carried out, the test of large scale test specimen can also be carried out, and experimental condition facilitates controlled, result of the test is rationally reliable.
A kind of controllable temperature humidity and controlled light radiation combined test apparatus, including walk-in type casing, be arranged on the Temperature Humidity Sensor A in described walk-in type casing, temperature control system, humidify dehumidification system, blower fan group；Being arranged on the control chamber outside described walk-in type casing, be provided with PLC control system in described control chamber, described PLC control system receives the data message of Temperature Humidity Sensor A and controls temperature control system, humidification dehumidification system and blower fan group；
Also include, be arranged on the removable specimen holder in described walk-in type casing, be arranged on the illumination simulation light source on described removable specimen holder；Described walk-in type casing is provided with the body edges place of double-open type chamber door, described double-open type chamber door and described walk-in type casing and is connected through the hinge, and described double-open type chamber door is provided with antifog glass observation window；
Sample is placed on described removable specimen holder, and is provided with optical sensor on sample, and described PLC control system receives the data message of described optical sensor and controls the illumination power of illumination simulation light source.
Being preferably carried out mode as this utility model one, described illumination simulation light source includes xenon lamp, LED, halogen tungsten lamp or ultra-violet lamp.
Being preferably carried out mode as this utility model one, described temperature control system includes heater and refrigerating plant；Described humidification dehumidification system includes damping device and dehydrating unit.
Being preferably carried out mode as this utility model one, described removable specimen holder bottom is provided with universal wheel, and described removable specimen holder is assembled by telescoping shoring column and constitutes.
Being preferably carried out mode as this utility model one, described illumination simulation light source is connected with described removable specimen holder by telescoping shoring column, can be adjusted the distance of described illumination simulation light source and test specimen by telescoping shoring column.
Being preferably carried out mode as this utility model one, described walk-in type box-like body includes inner bag and outer wall, and described liner material is rustless steel, and described outer wall materials is foam thermal insulation pottery.
Being preferably carried out mode as this utility model one, described blower fan group includes 2 with fan, and described blower fan is arranged on described removable specimen holder top.
It is preferably carried out in mode, described temperature control system and humidification dehumidification system to be provided with PID regulator as this utility model one.
Being preferably carried out mode as this utility model one, described walk-in type casing top is additionally provided with air port, and described air port place is provided with Temperature Humidity Sensor B, and described PLC control system receives the data message of described Temperature Humidity Sensor B and controls the folding in air port.
It is preferably carried out mode as this utility model one, described optical sensor is provided with the vacuum cup that can be fixed on described sample surface.
This utility model utility model solves the problem that the little measurement in prior art small-scale test case space scope is little, it is possible to larger-size auto parts and components product is carried out simulation test accurately；The space availability ratio of walk-in type casing can be improved to greatest extent；Temperature and Humidity Control is carried out, better service life of anticipation product and ager process while sample can be carried out light radiation test.
Accompanying drawing explanation
The accompanying drawing constituting the part of the application is used for providing being further appreciated by of the present utility model, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.
Fig. 1 illustrates the main TV structure schematic diagram of this utility model embodiment.
Fig. 2 illustrates the structural representation of the double-open type chamber door of this utility model embodiment.
Description of reference numerals:
1-walk-in type box-like body；2-may move specimen holder；3-xenon lamp；4-sample；51,52-Temperature Humidity Sensor A；6-optical sensor；7-heater；8-refrigerating plant；9-damping device；10-dehydrating unit；11-outer wall；12-inner bag；13-air port；14-air port lid；15-Temperature Humidity Sensor B；16,17-blower fan group；18-control chamber；19-universal wheel.
21: double-open type chamber door；22: antifog glass observation window；23: the pass door handle that can fasten.
Detailed description of the invention
The following detailed description being preferable to carry out method of the present utility model of participation in the election can be more easily understood present disclosure.Term used herein " comprises ", " including ", " having ", " containing " or its other deformation any, it is intended that cover the including of non-exclusionism.During the Range Representation that parameter limits with scope, preferable range or a series of upper limit preferred value and lower preferable values, this is appreciated that and specifically discloses all scopes formed by arbitrary pairing of any range limit or preferred value and any range lower limit or preferred value, regardless of whether whether this scope separately discloses.Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.
Embodiment: as shown in Figure 1, a kind of controllable temperature humidity and controlled light radiation combined test apparatus, including walk-in type box-like body 1, described walk-in type casing 1 includes outer wall 11 and inner bag 12, described liner material 12 is rustless steel, and described outer wall materials 11 is foam thermal insulation pottery.
Described foam heat-insulation layer can play the effect of good insulation.
The volume of described walk-in type box-like body 1 is 15～25 cubic metres.
As shown in Figure 2, described walk-in type casing 1 is provided with double-open type chamber door 21, the body edges place of described double-open type chamber door 21 and described walk-in type casing 1 is connected through the hinge, and described double-open type chamber door 21 is provided with the antifog glass observation window 22 of symmetry and the pass door handle 23 that can fasten.Adopt silicon bi-layer elastomeric material to guarantee to seal inside described double-open type chamber door 21.The lower height distance along distance tank floor of described antifog glass observation window 22 is arranged on 1.45～1.6 meters, facilitates testing crew to observe.
Being provided with removable specimen holder 2 in described walk-in type casing 1, described removable specimen holder 2 bottom is provided with universal wheel 19, and described removable specimen holder 1 is assembled by telescoping shoring column and constitutes.The described specimen holder 2 position in described casing 1 or the described casing 1 that comes in and goes out can be arbitrarily moved by universal wheel 19.
Described removable specimen holder 2 can be provided with the rack of more than 2 layers, and described rack is used for placing sample.
Described removable specimen holder 2 top is provided with illumination simulation light source；Described illumination simulation light source includes xenon lamp, LED, halogen tungsten lamp or ultra-violet lamp.
Described illumination simulation light source is connected with described removable specimen holder by telescoping shoring column, can be adjusted the distance of described illumination simulation light source and test specimen by telescoping shoring column.
Preferably, auto parts and components product testing selects xenon lamp, arranges xenon lamp 3 on described removable specimen holder 2, and the quantity of xenon lamp can be arranged according to sample size.
As it is shown in figure 1, the layer article-retaining shelf that may move in specimen holder 2 is placed sample 4, by the size of the removable specimen holder 2 of the telescoping shoring column adjustment of removable specimen holder 2, to adapt to sample.
According to the position of sample 4 placed, it is arranged around Temperature Humidity Sensor A:51 and 52 at described sample 4, it is determined that be fixed on removable specimen holder 2 by described Temperature Humidity Sensor A behind position.The surface configuration that described sample 4 is corresponding with xenon lamp 3 has the optical sensor 6 with vacuum cup.
Described walk-in type casing 1 is outside is provided with control chamber 18, is provided with PLC control system in described control chamber 18, and described PLC control system receives the data message of described optical sensor 6 and controls the illumination power of illumination simulation light source xenon lamp 3.
Temperature control system, humidification dehumidification system and blower fan group it is additionally provided with in described walk-in type casing 1.
Described PLC control system receive Temperature Humidity Sensor A51,52 data message and control temperature control system, humidification dehumidification system and blower fan group, described temperature control system and be provided with PID regulator in humidification dehumidification system.
Described temperature control system includes heater 7 and refrigerating plant 8.Described heater by solid-state relay, add heat pipe etc. and form, the make-and-break time of solid-state relay control to add the heat that adds of heat pipe, the make-and-break time of solid-state relay is by the modulated Pulse Width Control of outside PLC control system output pulse width.The described preferred fully closed compressor of refrigerating plant 7, forms including compressor, vaporizer, condenser, thermal expansion valve etc., selects R404A type cold-producing medium, outside PLC control system control the start-stop of compressor, thermal expansion valve.
Described humidification dehumidification system includes damping device 9 and dehydrating unit 10.Described damping device 9 selects electrode humidifler, and starting working when humidifier makes air humidity rise, and when being raised to required value, then closes humidifier.Described dehydrating unit 10 selects dehumidifier, adopt the mode of freon refrigeration dehumidifying, its vaporizer and condenser are combined into one type back-to-back, when air dewetting in dehumidifier is to casing, air in case enters from the Freon-Evaporator side of low temperature, moisture in air be condensed on an evaporator and instill drip tray drain into casing outer and remove moisture and be cooled, the air lowered the temperature immediately enters the warm condenser of freon, it is reheated to room temperature, avoiding air themperature in casing to be lowered because of dehumidifying, in holding tank body, air themperature stablizes.The operation of wherein said humidifier and dehumidifier stops by PLC control system control.
Described blower fan group 16,17 is used for promoting that the air in casing circulates, and with better simulating nature photoenvironment, is made up of blower fan, air channel, air grid etc., in the interlayer of air channel, is distributed heater, refrigerating evaporator etc., by outside PLC control system.Described blower fan group arranges and includes 2 with fan, and described blower fan is fixed on the inwall of described walk-in type box-like body, is positioned at described removable specimen holder 2 top.
Described walk-in type casing 1 top is additionally provided with air port 13 and can 180oThe air port lid 14 rotated, described air port 13 place has been arranged around Temperature Humidity Sensor B15, and described PLC control system receives the data message of described Temperature Humidity Sensor B15 and controls the folding in air port.
Said apparatus controls assembly with the temperature and humidity controlled in System cabine respectively preferably by high temperature resistant anti-corrosion wire and is connected.Or wirelessly connect.
Humiture in described casing is by heating system, humidification dehumidification system, blower fan group, air port co-controlling.Set humiture and the humiture collected by Temperature Humidity Sensor as required, the moisture that adds of the heat output and humidification system that are controlled heating system according to pid algorithm employing pulsewidth modulation output by PLC exports, the cold output of dehumidification system, carries out heat/wet constant temperature/constant humidity that compensates and controls system.
In use procedure, being first placed in by sample on removable specimen holder, the size dimension further according to sample selects suitable position to install corresponding optical sensor and Temperature Humidity Sensor, it is determined that the distance of xenon lamp and sample.The power of analog light source in specific algorithm routine control chamber body and the operating/stopping in heating system, humidification dehumidification system, blower fan group and/or air port are set by the detection demand of sample, process of the test adjusts systematic parameter according to optical sensor and Temperature Humidity Sensor data message by PLC in good time, to obtain true and reliable result of the test.
This utility model compared with prior art, the beneficial effects of the utility model:
1, described walk-in test chamber body solves the problem that the little measurement in prior art small-scale test case space scope is little, both light radiation test and the Humidity Test of small-size product test specimen can have been carried out, the test of large scale test specimen can also be carried out, and experimental condition facilitates controlled, result of the test is rationally reliable.
2, removable specimen holder 2 can arbitrarily change size and location, for larger-size auto parts and components product, removable specimen holder 2 can be pulled out from described walk-in type casing, sample is placed outside casing, situation further according to sample, specific illumination simulation quantity of light source, optical sensor and Temperature Humidity Sensor are installed, more removable specimen holder 2 is pushed described walk-in type casing, improve the space availability ratio of walk-in type casing to greatest extent.
3, assay device described in the utility model can carry out Temperature and Humidity Control while sample is carried out light radiation test, it is provided that more reliable test data, and better service life of anticipation product and ager process.
Should be appreciated that this specification has no intention to be confined to this utility model above-mentioned illustrative embodiments.On the contrary, this utility model not only to contain these illustrative embodiments, also to contain the various alternative forms in the spirit and scope of the present utility model being defined by the appended claims, amendment, equivalents and other embodiments.
Claims (10)
1. controllable temperature humidity and a controlled light radiation combined test apparatus, including walk-in type casing, is arranged on the Temperature Humidity Sensor A in described walk-in type casing, temperature control system, humidifies dehumidification system, blower fan group；Being arranged on the control chamber outside described walk-in type casing, be provided with PLC control system in described control chamber, described PLC control system receives the data message of Temperature Humidity Sensor A and controls temperature control system, humidification dehumidification system and blower fan group；
It is characterized in that, also include,
It is arranged on the removable specimen holder in described walk-in type casing, is arranged on the illumination simulation light source on described removable specimen holder；Described walk-in type casing is provided with the body edges place of double-open type chamber door, described double-open type chamber door and described walk-in type casing and is connected through the hinge, and described double-open type chamber door is provided with antifog glass observation window；
Sample is placed on described removable specimen holder, and is provided with optical sensor on sample, and described PLC control system receives the data message of described optical sensor and controls the illumination power of illumination simulation light source.
2. controllable temperature humidity according to claim 1 and controlled light radiation combined test apparatus, it is characterised in that described illumination simulation light source includes xenon lamp, LED, halogen tungsten lamp or ultra-violet lamp.
3. controllable temperature humidity according to claim 1 and controlled light radiation combined test apparatus, it is characterised in that described temperature control system includes heater and refrigerating plant；Described humidification dehumidification system includes damping device and dehydrating unit.
4. controllable temperature humidity according to claim 1 and controlled light radiation combined test apparatus, it is characterised in that described removable specimen holder bottom is provided with universal wheel, described removable specimen holder is assembled by telescoping shoring column and constitutes.
5. controllable temperature humidity according to claim 1 and controlled light radiation combined test apparatus, it is characterized in that, described illumination simulation light source is connected with described removable specimen holder by telescoping shoring column, can be adjusted the distance of described illumination simulation light source and test specimen by telescoping shoring column.
6. controllable temperature humidity according to claim 1 and controlled light radiation combined test apparatus, it is characterised in that described walk-in type box-like body includes inner bag and outer wall, and described liner material is rustless steel, described outer wall materials is foam thermal insulation pottery.
7. controllable temperature humidity according to claim 1 and controlled light radiation combined test apparatus, it is characterised in that described blower fan group includes 2 with fan, and described blower fan is arranged on described removable specimen holder top.
8. controllable temperature humidity according to claim 1 and controlled light radiation combined test apparatus, it is characterised in that be provided with PID regulator in described temperature control system and humidification dehumidification system.
9. controllable temperature humidity according to claim 1 and controlled light radiation combined test apparatus, it is characterized in that, described walk-in type casing top is additionally provided with air port, described air port place is provided with Temperature Humidity Sensor B, and described PLC control system receives the data message of described Temperature Humidity Sensor B and controls the folding in air port.
10. controllable temperature humidity according to claim 1 and controlled light radiation combined test apparatus, it is characterised in that be provided with the vacuum cup that can be fixed on described sample surface on described optical sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620025507.7U CN205352910U (en) | 2016-01-12 | 2016-01-12 | Radiation combined test device is shone with controllable light to controllable temperature humidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620025507.7U CN205352910U (en) | 2016-01-12 | 2016-01-12 | Radiation combined test device is shone with controllable light to controllable temperature humidity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205352910U true CN205352910U (en) | 2016-06-29 |
Family
ID=56174974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620025507.7U Active CN205352910U (en) | 2016-01-12 | 2016-01-12 | Radiation combined test device is shone with controllable light to controllable temperature humidity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205352910U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338404A (en) * | 2016-08-29 | 2017-01-18 | 芜湖新泉汽车饰件系统有限公司 | Automobile door panel heat exposure simulation test device |
| CN106647887A (en) * | 2016-12-07 | 2017-05-10 | 常州天合光能有限公司 | Generating capacity testing environment case |
| CN107843546A (en) * | 2017-11-22 | 2018-03-27 | 上海锦湖日丽塑料有限公司 | For PC/ABS, the illumination ageing experimental method of ABS material |
| CN108020498A (en) * | 2016-11-03 | 2018-05-11 | 沈阳工业大学 | A kind of artifical-air cell of temperature-controllable |
| CN108051684A (en) * | 2017-12-26 | 2018-05-18 | 华测检测认证集团股份有限公司 | Multitask multi-temperature section is carried out at the same time automotive material aging test equipment |
| CN108181227A (en) * | 2017-11-22 | 2018-06-19 | 上海锦湖日丽塑料有限公司 | For the illumination ageing experimental provision of PC/ABS, ABS and application |
| CN108918167A (en) * | 2018-06-28 | 2018-11-30 | 郑州轻工业学院 | The test macro of automobile electric power-assisted steering controller aging |
| CN109323983A (en) * | 2018-12-21 | 2019-02-12 | 广州广电计量检测无锡有限公司 | A kind of infrared ageing system of vehicle and its method |
| CN111141665A (en) * | 2020-01-19 | 2020-05-12 | 安徽省先锋制药有限公司 | Drug stability test box with illumination |
| CN111157392A (en) * | 2019-12-02 | 2020-05-15 | 上海工程技术大学 | Device for dynamic measurement and characterization of thermal-wet deformation of fiber material and use method thereof |
| CN111380797A (en) * | 2018-12-27 | 2020-07-07 | 广州合成材料研究院有限公司 | Aging test chamber and humidity control method thereof |
| CN113758860A (en) * | 2021-08-16 | 2021-12-07 | 江苏徐工工程机械研究院有限公司 | Adjustable sunlight simulation test device and control method |
-
2016
- 2016-01-12 CN CN201620025507.7U patent/CN205352910U/en active Active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338404A (en) * | 2016-08-29 | 2017-01-18 | 芜湖新泉汽车饰件系统有限公司 | Automobile door panel heat exposure simulation test device |
| CN108020498A (en) * | 2016-11-03 | 2018-05-11 | 沈阳工业大学 | A kind of artifical-air cell of temperature-controllable |
| CN106647887A (en) * | 2016-12-07 | 2017-05-10 | 常州天合光能有限公司 | Generating capacity testing environment case |
| CN108181227B (en) * | 2017-11-22 | 2021-07-30 | 上海锦湖日丽塑料有限公司 | Light aging experimental device for PC/ABS and application |
| CN107843546A (en) * | 2017-11-22 | 2018-03-27 | 上海锦湖日丽塑料有限公司 | For PC/ABS, the illumination ageing experimental method of ABS material |
| CN108181227A (en) * | 2017-11-22 | 2018-06-19 | 上海锦湖日丽塑料有限公司 | For the illumination ageing experimental provision of PC/ABS, ABS and application |
| CN108051684A (en) * | 2017-12-26 | 2018-05-18 | 华测检测认证集团股份有限公司 | Multitask multi-temperature section is carried out at the same time automotive material aging test equipment |
| CN108918167A (en) * | 2018-06-28 | 2018-11-30 | 郑州轻工业学院 | The test macro of automobile electric power-assisted steering controller aging |
| CN109323983A (en) * | 2018-12-21 | 2019-02-12 | 广州广电计量检测无锡有限公司 | A kind of infrared ageing system of vehicle and its method |
| CN111380797A (en) * | 2018-12-27 | 2020-07-07 | 广州合成材料研究院有限公司 | Aging test chamber and humidity control method thereof |
| CN111157392A (en) * | 2019-12-02 | 2020-05-15 | 上海工程技术大学 | Device for dynamic measurement and characterization of thermal-wet deformation of fiber material and use method thereof |
| CN111141665A (en) * | 2020-01-19 | 2020-05-12 | 安徽省先锋制药有限公司 | Drug stability test box with illumination |
| CN113758860A (en) * | 2021-08-16 | 2021-12-07 | 江苏徐工工程机械研究院有限公司 | Adjustable sunlight simulation test device and control method |
| CN113758860B (en) * | 2021-08-16 | 2023-07-04 | 江苏徐工工程机械研究院有限公司 | Adjustable sunlight simulation test device and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205352910U (en) | Radiation combined test device is shone with controllable light to controllable temperature humidity | |
| CN102149810B (en) | Incubation system with low temperature enclosure | |
| US10641505B2 (en) | Thermal equilibrium system for building and energy-saving air-conditioning system using the same | |
| CN105954177A (en) | High-temperature high-humidity xenon lamp test chamber | |
| CN111642256B (en) | Bidirectional variable-air-volume ventilation temperature-control humidifying system for granary and control method | |
| CN105861303A (en) | Constant temperature and humidity LED incubator capable of adjusting light intensity | |
| CN208642685U (en) | A kind of climatic chamber | |
| CN203577811U (en) | Constant-temperature and constant-humidity chamber | |
| CN105954178A (en) | Anticorrosive low-humidity walk-in test chamber | |
| JP2022089895A (en) | Indoor environment adjustment method, and indoor environment adjustment system | |
| CN104858000A (en) | Biochemical incubator | |
| CN204544215U (en) | A kind of biochemical cultivation case | |
| CN115290520A (en) | Mobile fine particle online calibration method | |
| CN203899617U (en) | VOC and formaldehyde release amount environment simulation test box | |
| CN206295960U (en) | A kind of high-low temperature test chamber | |
| CN203778083U (en) | Portable adjustable illumination constant-temperature and humidity culture device | |
| CN208661163U (en) | A kind of high temperature aging test box under combinational environment | |
| CN209525238U (en) | A kind of energy-saving temperature wet test case | |
| CN105107555A (en) | Plant leaf surface frosting apparatus and method thereof | |
| Braak et al. | The phytotron of the institute of horticultural plant breeding at Wageningen, Netherlands | |
| CN217425141U (en) | Test device for simulating environment temperature change in cold region | |
| CN205643115U (en) | Xenon lamp weather -proof test box | |
| EP2180038A2 (en) | Installation for generating a climatic environment comprising at least one environmental research cell capable of receiving a sample to be studied | |
| CN208340744U (en) | A kind of car trim constant temperature and moisture test device | |
| CN207611300U (en) | A kind of numerical control environmental chamber based on various factors coupling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |