CN204613330U - A kind of rain test chamber - Google Patents
A kind of rain test chamber Download PDFInfo
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- CN204613330U CN204613330U CN201520317469.8U CN201520317469U CN204613330U CN 204613330 U CN204613330 U CN 204613330U CN 201520317469 U CN201520317469 U CN 201520317469U CN 204613330 U CN204613330 U CN 204613330U
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Abstract
The utility model relates to a kind of rain test chamber, by arranging Programmable Logic Controller and touch-screen, the first motor be equipped with, the second motor, the first solenoid valve, the second solenoid valve and rain gage, can the amount of drenching with rain accurately in Control experiment, rainfall situation, the swing speed of swing pipe, the pendulum angle of swing pipe, the rotational speed of test bracket and test duration, realize the rainfall amount different according to the different set of each department rainfall grade, make tested electronic equipment can meet the demand of different regions; Simultaneously by the rotation of test bracket and flexible, tested electronic equipment is touched from each orientation and drenches with rain, realize the simulation to different rainfall direction, simultaneously can the water-resistant performance of comprehensive detected electrons equipment; In addition, the utility model, by arranging cable aperture, realizes electronic equipment and can be communicated with power supply and data line in rain proofness detection experiment, thus the rain proofness of electronic equipment under realizing testing state.
Description
Technical field
The utility model relates to rain proofness technical field of measurement and test, particularly relates to a kind of rain test chamber.
Background technology
Some need to be arranged on the impact that outdoor electronic equipment is inevitably subject to rainfall, rainfall can cause physical impact and corrosion to electronic equipment, have a strong impact on the performance of electronic equipment, therefore need to detect the rain proofness of electronic equipment, the electronic equipment only meeting rainproof requirement in outdoor environment just can be installed on outdoor.
Have multiple rain test chamber in prior art, but rain test chamber of the prior art has following defect:
The amount of drenching with rain only is controlled by the valve of drenching with rain on water pipe, causes gauge amount of drenching with rain like this and is forbidden;
Rain test chamber can be simulated and be drenched with rain, but can not imitate the situation of drizzle;
In rain test chamber, the angle of swing pipe and rotational speed can not be precisely controlled;
Salt fog test can not electronic equipment under test job state;
Salt fog test can not the test electronic rain proofness of comprehensively drenching with rain under situation.
Utility model content
The technical problems to be solved in the utility model provides one can simulate different rainfall situation, accurately control the amount of drenching with rain, simultaneously can comprehensive detected electrons equipment in working order under the rain test chamber of water-resistant performance.
For solving the problems of the technologies described above, the utility model discloses a kind of rain test chamber, described rain test chamber comprises experimental cabin, control device and water tank, and described water tank is connected with described experimental cabin, and is positioned at below described experimental cabin;
Described experimental cabin comprises swing pipe, test bracket, multiple Fine spray shower nozzle, rain gage, cable aperture, the first motor and the second motor; One end of described swing pipe is fixed on the sidewall of described experimental cabin by rotatable fixture, and described swing pipe is provided with multiple nozzle of drenching with rain; The other end of described swing pipe connects described second motor, by pendulum angle and the speed of swing pipe described in described second Electric Machine Control; Described test bracket is arranged at the below of described swing pipe, and described test bracket is connected with described first motor, by the rotation of test bracket described in described first Electric Machine Control and flexible; Multiple described Fine spray shower nozzles are arranged at the top of described test bracket; Described rain gage is arranged at the bottom of described experimental cabin; Described cable aperture is arranged on the sidewall of described experimental cabin;
Described control device comprises water pump, the first solenoid valve, the second solenoid valve, the first water inlet pipe, the second water inlet pipe, touch-screen and Programmable Logic Controller; Described water pump is connected with the rising pipe of described water tank, described water pump is connected with described swing pipe and described multiple Fine spray shower nozzle with described second water inlet pipe respectively by described first water inlet pipe, and the pipeline of described first water inlet pipe arranges described first solenoid valve, the pipeline of described second water inlet pipe arranges described second solenoid valve; Described touch-screen is connected with described Programmable Logic Controller, and described Programmable Logic Controller is connected with described water pump, the first solenoid valve, the second solenoid valve, the first motor, the second motor and rain gage.
Preferably, be connected by web joint between described water tank with described experimental cabin, and described web joint arranges multiple scupper.
Preferably, described multiple Fine spray shower nozzle is positioned at the top of described swing pipe, its quantity is four, and wherein three described Fine spray shower nozzles lay respectively on equilateral leg-of-mutton three summits, and Fine spray shower nozzle described in another is positioned at the geometric center of described equilateral triangle.
Preferably, described water tank comprises the water injection hole be arranged on described water tank sidewall and the water delivering orifice be arranged on another sidewall of described water tank; Described water delivering orifice is connected with the rising pipe of described water tank.
Preferably, described control device also comprises flowmeter, and described flowmeter is connected with described rising pipe and described Programmable Logic Controller.
Preferably, described experimental cabin also comprises rain brush and chamber door; Described chamber door is opened on the sidewall of described experimental cabin, and described chamber door comprises view window, and described rain brush is arranged on described view window; Described rain brush is connected with described Programmable Logic Controller.
Preferably, described test bracket is arranged at the geometric center bottom described experimental cabin.
Preferably, described rain test chamber also comprises casing, and described experimental cabin, control device and water tank are arranged in described casing.
Preferably, described rain test chamber also comprises castor, and described castor is installed on the bottom of described casing.
Preferably, the material of described casing is stainless steel.
Technique scheme tool of the present utility model has the following advantages: the utility model is by arranging Programmable Logic Controller and touch-screen, the first motor be equipped with, the second motor, the first solenoid valve, the second solenoid valve and rain gage, can the amount of drenching with rain accurately in Control experiment, rainfall situation, the swing speed of swing pipe, the pendulum angle of swing pipe, the rotational speed of test bracket and test duration, realize the rainfall amount different according to the different set of each department rainfall grade, make tested electronic equipment can meet the demand of different regions; Simultaneously by the rotation of test bracket and flexible, tested electronic equipment is touched from each orientation and drenches with rain, realize the simulation to different rainfall direction, can the water-resistant performance of comprehensive detected electrons equipment;
In addition, the utility model, by arranging cable aperture, realizes electronic equipment and can be communicated with power supply in rain proofness detection experiment, thus the rain proofness of electronic equipment under realizing detecting energising duty.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of rain test chamber of a preferred embodiment of the present utility model.
In figure, 1: multiple Fine spray shower nozzle; 2: experimental cabin; 3: swing pipe; 4: test bracket; 5: the first motors; 6: rain gage; 7: leaking hole; 8: water injection hole; 9: water tank; 10: cable aperture; 11: casing; 12: the second motors; 13: touch-screen; 14: Programmable Logic Controller; 15: the first solenoid valves; 16: power switch; 17: the second solenoid valves; 18: water pump; 19: flowmeter; 20: castor; 21: rain brush; 22: chamber door; 23: the first water inlet pipes; 24: the second water inlet pipes.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
A preferred embodiment of the present utility model discloses a kind of rain test chamber, and as shown in Figure 1, rain test chamber comprises experimental cabin 2, control device and water tank 9.Water tank 9 is connected with experimental cabin 2, and be positioned at below experimental cabin 2, be connected by web joint between water tank 9 with experimental cabin 2, wherein web joint is arranged a large amount of scupper 7, the precipitation in test is made to get back in water tank 9 fast, form the circulating water supply system of rain test chamber, and form air with the water filling port 8 of water tank 9 and circulate, inside and outside keeping, pressure is consistent.
Experimental cabin 2 comprises swing pipe 3, test bracket 4, multiple Fine spray shower nozzle 1, rain gage 6, cable aperture 10, first motor 5 and the second motor 12.One end of swing pipe 3 is fixed on the sidewall of experimental cabin 2 by rotatable fixture, and swing pipe 3 can be rotated centered by rotatable fixture in experimental cabin.Swing pipe 3 is provided with multiple nozzle of drenching with rain, nozzle of wherein drenching with rain comprises polytype nozzle, such as fan nozzle and spray nozzle, can adjusting water outlet size, to realize simulating different rainfall situations; The other end of swing pipe 3 connects the second motor 12, provides power by the second motor 12, to control pendulum angle and the speed of swing pipe 3.Wherein the second motor is connected with the Programmable Logic Controller of control device, provides control signal to the second motor by Programmable Logic Controller, realizes the control of pendulum angle to swing pipe 3 and speed.
Test bracket 4 is arranged at the below of swing pipe 3, is preferably arranged at immediately below swing pipe 3, and the detected electronic equipment be beneficial to being installed on test bracket carries out spray test.Test bracket 4 is connected with the first motor 5, high power is provided by the first motor 5, with the rotation of Control experiment support 4 and flexible, tested electronic equipment is touched from each orientation drench with rain, the simulation to different rainfall direction can be realized simultaneously, can the water-resistant performance of comprehensive detected electrons equipment.Wherein the first motor is connected with the Programmable Logic Controller of control device, provides control signal to the first motor by Programmable Logic Controller, realizes the rotation of test bracket 4 and flexiblely to control.
Multiple Fine spray shower nozzles 1 are arranged at the top of test bracket 4, are preferably arranged at directly over test bracket 4, and the detected electronic equipment be beneficial to being installed on test bracket 4 carries out spray test.Each Fine spray shower nozzle 1 comprises multiple vaporific nozzle, realizes the rainfall situation of simulation drizzle, and Fine spray shower nozzle 1 can also adjusting water outlet size.
Rain gage 6 is arranged at the bottom of experimental cabin 2, being preferably arranged at experimental cabin 2 with on the web joint of water tank 9, for detecting the rainfall amount in experimental cabin, and feeding back to the Programmable Logic Controller in control device, to realize the accurate control to rainfall amount.Cable aperture 10 is arranged on the sidewall of experimental cabin 2, by cable aperture 10, electric wire or data line is connected with detected electronic equipment, thus the water-resistant performance of the electronic equipment of testing state.Cable aperture is preferably located on the sidewall of experimental cabin 2 back upper place, and sidewall can be steel plate steel plate, and is equipped with silica gel plug, can by silica gel plug hermetically-sealed cable hole 10.
Control device comprises water pump 18, first solenoid valve 15, second solenoid valve 17, first water inlet pipe 23, second water inlet pipe 24, touch-screen 13 and Programmable Logic Controller 14.Water pump 18 is connected with the rising pipe of water tank 9, and the rising pipe of water tank 9 is connected with the water delivering orifice of water tank.Water pump 18 is connected with swing pipe 3 and multiple Fine spray shower nozzle 1 with the second water inlet pipe respectively by the first water inlet pipe, and the pipeline of the first water inlet pipe is arranged the first solenoid valve 15, the pipeline of the second water inlet pipe is arranged the second solenoid valve 17, first solenoid valve 15, second solenoid valve 17 is connected with Programmable Logic Controller 14, there is provided control signal to the first solenoid valve 15 and the second solenoid valve 17, to control the amount of drenching with rain and the rainfall rate of swing pipe 3 and Fine spray shower nozzle 1 by Programmable Logic Controller 14; Touch-screen 13 is connected with Programmable Logic Controller 14, by its time setting button, test duration can be set (such as by touch-screen, setting range is 0-99 hour) etc. test parameters, and carry out according to correlation parameter control of drenching with rain by Programmable Logic Controller.Programmable Logic Controller 14 is connected with water pump 18, for providing control signal for water pump, to control rainfall amount and rainfall rate.Programmable Logic Controller 14 is also connected with rain gage 6 simultaneously, the rainfall amount detected is fed back to Programmable Logic Controller by rain gage, Programmable Logic Controller obtains control signal according to the rainfall amount of feedback and test parameters, control water pump, the first solenoid valve, the second solenoid valve, the first motor and the second motor, to realize requiring that (rainfall amount, rainfall duration, rainfall rate and density etc.) detect according to rain test.
Further, multiple Fine spray shower nozzles 1 are positioned at the top of swing pipe 3, preferably be arranged at directly over swing pipe 3, its quantity is 4, and wherein 3 Fine spray shower nozzles 1 lay respectively on equilateral leg-of-mutton three summits, another Fine spray shower nozzle 1 is positioned at the geometric center of equilateral triangle, can make the tested electrical verification subset of water smoke uniform fold.Multiple Fine spray shower nozzle 1 by manually adjusting the direction of its shower nozzle, to meet different test demands.
Further, water tank 9 comprises the water injection hole 8 be arranged on water tank sidewall and the water delivering orifice be arranged on another sidewall of water tank, and wherein water delivering orifice connects water pump after being connected with the rising pipe of water tank 9.Water injection hole and water delivering orifice can as air holes, are used for the inside and outside pressure of balanced reservoir.Preferably, water tank 9 volume is 150L.
Further, control device also comprises flowmeter 19, and flowmeter 19 is connected with rising pipe and Programmable Logic Controller 14.Flowmeter by detect pass traffic to the Programmable Logic Controller of control device, control signal is obtained according to the Detection Information of flowmeter and test parameters by Programmable Logic Controller, control water pump, the first solenoid valve, the second solenoid valve, the first motor and the second motor, to realize requiring that (rainfall amount, rainfall duration, rainfall rate and density etc.) detect according to rain test.
Further, experimental cabin 2 also comprises rain brush 21 and chamber door 22; Chamber door 22 is opened on the sidewall of experimental cabin 2, and chamber door 22 comprises view window, and rain brush 21 is arranged on view window; Rain brush 21 is connected with Programmable Logic Controller 14, by the control of Programmable Logic Controller.The material of view window is tempered glass, to facilitate the process of observation test.
Further, test bracket 4 is arranged at the geometric center bottom experimental cabin 2, is conducive to like this in spray test, sprays the electronic equipment be installed on test bracket comprehensively.
Further, rain test chamber also comprises casing 11, and experimental cabin 2, control device and water tank 9 is arranged in casing 11, and control device is positioned on the right side of casing.Casing 11 is for protecting experimental cabin 2, control device and water tank 9.
Further, rain test chamber also comprises castor 20, and castor 20 is installed on the bottom of casing 11, and this design can carry rain test chamber easily.
Further, casing 11 length is 1.4 meters, and wide is 1.2 meters, and height is 1.6 meters, and casing material is stainless steel, and chamber uses 220v ac power supply.Experimental cabin 2 is long 0.9 meter, wide 0.9 meter, high 0.9 meter.The circular port of water filling port to be diameter be 5cm.
Further, rain test chamber is power switch 16 also, for controlling the break-make of rain test chamber power supply.
Further, touch-screen 13 can set out water yield size, swing pipe 3 swing speed and pendulum angle, test bracket 4 rotational speed, the total ON/OFF of rainfall amount size, swing pipe 3 and Fine spray shower nozzle 1, the swing speed of rain brush 21, and realizes corresponding control by Programmable Logic Controller.
Rain test chamber of the present utility model can set rainfall amount size by two kinds of modes, and one sets discharge size by touch-screen 13, by Programmable Logic Controller 14 control flow check gauge 19 and water pump 18, and the size of adjustment rainfall amount.The second sets total rainfall amount by touch-screen 13, by the total rainfall amount in rain gage 6 statistical test, feeds back to Programmable Logic Controller 14 when reaching setting value, stops salt fog test.Swing pipe 3 and Fine spray shower nozzle 1 respectively have independently solenoid valve, can select that imitation is dripped, trickle and water smoke.Set the rotating speed of test bracket 4 and the swing speed of rain brush in test by touch-screen 13, the swing speed of swing pipe and pendulum angle, can before the test by touch-screen 13 operating and setting.Cable aperture 10 in test by electronic equipment tested in extraneous cable joint test, can make its work and transmission data, tests its duty in rainfall environment.Test duration can set, and setting range is 0-99h.
Present embodiments providing a kind of test casing length is 1.4 meters, and wide is 1.2 meters, and height is 1.6 meters.Experimental cabin 2 is long 0.9 meter, wide 0.9 meter, high 0.9 meter.
The left surface of test box body 11 is also provided with air hole, and air hole is directly the circular port of 5cm, is also the water filling port of water tank simultaneously.
The present embodiment can simulate different rainfall grade, by arranging programmable controller PLC control and can touch-screen be operated, and can the amount of drenching with rain, swing pipe swing speed and angle, test bracket rotational speed, test duration in Control experiment.Wherein have two kinds of modes to control the amount of drenching with rain, one is by controlling water pump, making meter readings control a definite value, controls the size of rainfall amount like this, and the logical total rainfall amount of rain gage record; Another kind sets rainfall amount in advance can operate on touch-screen, and by udometric feedback, when arriving setting rainfall amount, chamber quits work.By arranging Fine spray shower nozzle, drizzle can be provided to simulate.By arranging cable aperture, the electronic equipment that can be in test provide working power and data transmission, test electronic drench with rain simulation in whether can normally work.By arranging Telescopic rotary test bracket, sized by different equipment suitable test height is provided.
To sum up, a kind of rain test chamber of simulating different rainfall grade that the present embodiment provides has the following advantages when using: can set rainfall amount size, according to the difference of each department rainfall grade, set different rainfall amounts, make tested electronic equipment meet the needs of different regions; Test bracket can rotate, and tested electronic equipment is touched from each orientation and drenches with rain, realize the simulation to different rainfall direction.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (10)
1. a rain test chamber, is characterized in that, described rain test chamber comprises experimental cabin, control device and water tank, and described water tank is connected with described experimental cabin, and is positioned at below described experimental cabin;
Described experimental cabin comprises swing pipe, test bracket, multiple Fine spray shower nozzle, rain gage, cable aperture, the first motor and the second motor; One end of described swing pipe is fixed on by rotatable fixture on the sidewall of described experimental cabin, and the other end of described swing pipe connects described second motor, by pendulum angle and the speed of swing pipe described in described second Electric Machine Control; Described test bracket is arranged at the below of described swing pipe, and described test bracket is connected with described first motor, by the rotation of test bracket described in described first Electric Machine Control and flexible; Multiple described Fine spray shower nozzles are arranged at the top of described test bracket; Described rain gage is arranged at the bottom of described experimental cabin; Described cable aperture is arranged on the sidewall of described experimental cabin;
Described control device comprises water pump, the first solenoid valve, the second solenoid valve, the first water inlet pipe, the second water inlet pipe, touch-screen and Programmable Logic Controller; Described water pump is connected with the rising pipe of described water tank, and described water pump is connected with described swing pipe by described first water inlet pipe, and described water pump is connected with described multiple Fine spray shower nozzle by described second water inlet pipe; The pipeline of described first water inlet pipe arranges described first solenoid valve, the pipeline of described second water inlet pipe arranges described second solenoid valve; Described Programmable Logic Controller is connected with described touch-screen, water pump, the first solenoid valve, the second solenoid valve, the first motor, the second motor and rain gage.
2. rain test chamber according to claim 1, is characterized in that, is connected between described water tank with described experimental cabin by web joint, and described web joint arranges multiple scupper.
3. rain test chamber according to claim 1, it is characterized in that, described multiple Fine spray shower nozzle is positioned at the top of described swing pipe, its quantity is four, and wherein three described Fine spray shower nozzles lay respectively on equilateral leg-of-mutton three summits, and Fine spray shower nozzle described in another is positioned at the geometric center of described equilateral triangle.
4. rain test chamber according to claim 1, is characterized in that, described water tank comprises the water injection hole be arranged on described water tank sidewall and the water delivering orifice be arranged on another sidewall of described water tank; Described water delivering orifice is connected with the rising pipe of described water tank.
5. rain test chamber according to claim 1, is characterized in that, described control device also comprises flowmeter, and described flowmeter is connected with described rising pipe and described Programmable Logic Controller.
6. rain test chamber according to claim 1, is characterized in that, described experimental cabin also comprises rain brush and chamber door; Described chamber door is opened on the sidewall of described experimental cabin, and described chamber door comprises view window, and described rain brush is arranged on described view window.
7. rain test chamber according to claim 1, is characterized in that, described test bracket is arranged at the geometric center bottom described experimental cabin.
8. rain test chamber according to claim 1, is characterized in that, described rain test chamber also comprises casing, and described experimental cabin, control device and water tank are arranged in described casing.
9. rain test chamber according to claim 8, is characterized in that, described rain test chamber also comprises castor, and described castor is installed on the bottom of described casing.
10. rain test chamber according to claim 8, is characterized in that, the material of described casing is stainless steel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520317469.8U CN204613330U (en) | 2015-05-15 | 2015-05-15 | A kind of rain test chamber |
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| CN201520317469.8U CN204613330U (en) | 2015-05-15 | 2015-05-15 | A kind of rain test chamber |
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| CN204613330U true CN204613330U (en) | 2015-09-02 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547593A (en) * | 2015-12-07 | 2016-05-04 | 芜湖凯尔电气科技有限公司 | Power battery rain test box |
| CN106249077A (en) * | 2016-07-28 | 2016-12-21 | 芜湖凯尔电气科技有限公司 | Charging electric vehicle detection Simulated rainwater experiment room |
| CN106595967A (en) * | 2016-12-23 | 2017-04-26 | 杭州天堂伞业集团有限公司 | Rain test device and rain test method for sun-rain umbrellas |
| CN108007856A (en) * | 2017-11-29 | 2018-05-08 | 江西省互电气有限公司 | One kind is based on electrical equipment waterproof test device |
| CN109001558A (en) * | 2018-06-16 | 2018-12-14 | 于婷婷 | A kind of energy-saving and environment-friendly rain test chamber |
| CN109823567A (en) * | 2019-01-04 | 2019-05-31 | 上海自图新材料科技有限公司 | The experimental rig and method of dynamic analog aircraft windward side and rotor by environmental attack |
| CN110553796A (en) * | 2019-09-21 | 2019-12-10 | 苏州华亚智能科技股份有限公司 | box type rain test equipment |
| CN110595989A (en) * | 2019-08-30 | 2019-12-20 | 国网福建省电力有限公司电力科学研究院 | Cable damage test platform and method for manually simulating strong wind and coastal environment |
| CN111551315A (en) * | 2020-06-13 | 2020-08-18 | 江苏安盈环境设备有限公司 | Swing pipe rain test machine |
| CN113063726A (en) * | 2021-04-23 | 2021-07-02 | 广东艾斯瑞仪器科技有限公司 | Rain test box for testing water vapor resistance of equipment |
| CN113551841A (en) * | 2020-04-24 | 2021-10-26 | 株洲桓基电气股份有限公司 | Locomotive air conditioner rain test system |
-
2015
- 2015-05-15 CN CN201520317469.8U patent/CN204613330U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547593A (en) * | 2015-12-07 | 2016-05-04 | 芜湖凯尔电气科技有限公司 | Power battery rain test box |
| CN106249077A (en) * | 2016-07-28 | 2016-12-21 | 芜湖凯尔电气科技有限公司 | Charging electric vehicle detection Simulated rainwater experiment room |
| CN106595967A (en) * | 2016-12-23 | 2017-04-26 | 杭州天堂伞业集团有限公司 | Rain test device and rain test method for sun-rain umbrellas |
| CN108007856A (en) * | 2017-11-29 | 2018-05-08 | 江西省互电气有限公司 | One kind is based on electrical equipment waterproof test device |
| CN109001558A (en) * | 2018-06-16 | 2018-12-14 | 于婷婷 | A kind of energy-saving and environment-friendly rain test chamber |
| CN109823567A (en) * | 2019-01-04 | 2019-05-31 | 上海自图新材料科技有限公司 | The experimental rig and method of dynamic analog aircraft windward side and rotor by environmental attack |
| CN110595989A (en) * | 2019-08-30 | 2019-12-20 | 国网福建省电力有限公司电力科学研究院 | Cable damage test platform and method for manually simulating strong wind and coastal environment |
| CN110553796A (en) * | 2019-09-21 | 2019-12-10 | 苏州华亚智能科技股份有限公司 | box type rain test equipment |
| CN110553796B (en) * | 2019-09-21 | 2021-10-19 | 苏州华亚智能科技股份有限公司 | Box type rain test equipment |
| CN113551841A (en) * | 2020-04-24 | 2021-10-26 | 株洲桓基电气股份有限公司 | Locomotive air conditioner rain test system |
| CN111551315A (en) * | 2020-06-13 | 2020-08-18 | 江苏安盈环境设备有限公司 | Swing pipe rain test machine |
| CN113063726A (en) * | 2021-04-23 | 2021-07-02 | 广东艾斯瑞仪器科技有限公司 | Rain test box for testing water vapor resistance of equipment |
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