CN114632555A - Walk-in high-low temperature rapid temperature change test box - Google Patents
Walk-in high-low temperature rapid temperature change test box Download PDFInfo
- Publication number
- CN114632555A CN114632555A CN202011480256.9A CN202011480256A CN114632555A CN 114632555 A CN114632555 A CN 114632555A CN 202011480256 A CN202011480256 A CN 202011480256A CN 114632555 A CN114632555 A CN 114632555A
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- fixing shaft
- fixed
- shaft
- box body
- frame
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- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 230000008859 change Effects 0.000 title claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 229910001120 nichrome Inorganic materials 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L1/00—Enclosures; Chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/50—Clamping means, tongs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/18—Means for temperature control
- B01L2300/1838—Means for temperature control using fluid heat transfer medium
- B01L2300/1844—Means for temperature control using fluid heat transfer medium using fans
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- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
A walk-in high-low temperature rapid temperature change test box effectively solves the problems that the surface temperature distribution of a sample is uneven, test data are influenced and the like, and comprises a box body, wherein a first fixing shaft and a second fixing shaft which are arranged in the horizontal direction are fixed in the box body, a clamping device is arranged between the first fixing shaft and the second fixing shaft, the first fixing shaft and the second fixing shaft are both rotationally connected with a frame, a plurality of through holes are uniformly distributed on the upper side surface and the lower side surface of the frame, a fan which is positioned in the through holes is fixed on the frame, a conducting ring which is coaxial with the second fixing shaft is fixed on the right end of the frame, the conducting ring is electrically connected with the fan through a first electric wire, a spline shaft is coaxially fixed on the second fixing shaft, a disc is connected on the spline shaft in a left-right sliding mode, a plurality of third fixing shafts are uniformly distributed and fixed on the left end surface of the disc, the third fixing shafts are rotationally connected with a ball body which is connected with the right end surface of the conducting ring in a rolling mode, and the plurality of the third fixing shafts are electrically connected through second electric wires, a first spring is arranged between the right end of the disc and the box body.
Description
Technical Field
The invention relates to the technical field of test equipment, in particular to a walk-in high-low temperature rapid temperature change test box.
Background
The walk-in high-low temperature rapid temperature change test box is mainly suitable for testing various performance indexes of products such as electronics, electrical appliances, communication, instruments, vehicles, plastic products, metal, food, chemistry, building materials, medical treatment, aerospace and the like under the condition of high temperature, low temperature and humidity (alternating) cyclic change, and meanwhile, the reliability of the products can be improved and the quality of the products can be controlled through the equipment test;
however, in the test process, the sample is generally placed on the tray, the area of the temperature change test of the lower surface of the sample in the box body is small, the collected data are limited, and the test data are influenced.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention aims to provide a walk-in high-low temperature rapid temperature change test box, which effectively solves the problems that the sample acquisition data is limited, the temperature distribution on the surface of the sample is not uniform, the test data is influenced and the like.
The technical scheme includes that the device comprises a box body, a heating device is arranged at the upper portion in the box body, a refrigerating device is arranged at the lower portion in the box body, a first fixing shaft and a second fixing shaft which are horizontally arranged are fixed in the box body, the first fixing shaft and the second fixing shaft are on the same axis, a clamping device is arranged between the first fixing shaft and the second fixing shaft, the first fixing shaft and the second fixing shaft are both rotatably connected with a frame, a plurality of through holes are uniformly distributed on the upper side face and the lower side face of the frame, a fan positioned in the through holes is fixed on the frame, a conducting ring coaxial with the second fixing shaft is fixed at the right end of the frame, the fan is electrically connected with the conducting ring through a first electric wire, a spline shaft is coaxially fixed on the second fixing shaft, a disc is slidably connected on the spline shaft in a left-right mode, a plurality of third fixing shafts are uniformly distributed and fixed on the left end face of the disc, and a ball body in rolling connection with the right end face of the conducting ring is rotatably connected with the third fixing shaft, a plurality of third fixed axles pass through second electric wire electric connection between the, installs first spring between the right-hand member of disc and the box.
The temperature change testing device is ingenious in structure, improves the contact area between a sample and the environment, is high in automation degree, greatly improves the temperature change efficiency inside the box body, can perform all-around temperature change tests on the sample, is convenient to adjust, is uniform in temperature, and can achieve the best test effect.
Drawings
Fig. 1 is a schematic view of the front view of the present invention.
Fig. 2 is a schematic view of a three-dimensional structure of the present invention.
Fig. 3 is a schematic view of a three-dimensional structure of the frame in the present invention.
Fig. 4 is a schematic diagram of a three-dimensional structure of a disk in the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in figures 1 to 4, a walk-in high and low temperature rapid temperature change test box comprises a box body 1, a heating device 2 is arranged at the upper part in the box body 1, a refrigerating device 3 is arranged at the lower part in the box body 1, a first fixing shaft 4 and a second fixing shaft 5 which are arranged in the horizontal direction are fixed in the box body 1, the first fixing shaft 4 and the second fixing shaft 5 are arranged on the same axis, a clamping device is arranged between the first fixing shaft 4 and the second fixing shaft 5, the first fixing shaft 4 and the second fixing shaft 5 are both rotationally connected with a frame 6, a plurality of through holes are uniformly distributed on the upper side surface and the lower side surface of the frame 6, a fan 7 positioned in the through holes is fixed on the frame 6, a right end of the frame 6 is fixed with a conductive ring 9 which is coaxial with the second fixing shaft 5, the fan 7 is electrically connected with the conductive ring 9 through a first electric wire 8, a spline shaft 10 is coaxially fixed on the second fixing shaft 5, a disc 11 is slidably connected on the spline shaft 10 from left to right, a plurality of third fixing shafts 12 are uniformly fixed on the left end face of the disc 11, the third fixing shafts 12 are rotatably connected with spheres 13 which are in rolling connection with the right end face of the conducting ring 9, the third fixing shafts 12 are electrically connected with each other through second electric wires 14, and a first spring 15 is arranged between the right end of the disc 11 and the box body 1.
Clamping device include first backup pad 16 and second backup pad 17, first backup pad 16 and second backup pad 17 are the L template, the right-hand member of first fixed axle 4 and 16 fixed connection of first backup pad, the left end and the second backup pad 17 fixed connection of second fixed axle 5, sliding connection has a plurality of first spacing axles 18 about in the first backup pad 16, first spacing axle 18 is connected through second spring 19 with the left end of first backup pad 16, sliding connection has a plurality of spacing axles 20 of second about in the second backup pad 17, the spacing axle 20 of second is connected through third spring 21 with the right-hand member of second backup pad 17.
The first fixed shaft 4 is rotatably connected with a first gear 22, the right end of the first gear 22 is fixedly connected with the left end of the frame 6, a horizontal rotating shaft is arranged in the box body 1, a second gear 23 meshed with the first gear 22 is coaxially fixed on the rotating shaft, a motor 24 is fixed on the outer side of the box body 1, and the motor 24 is coaxially and fixedly connected with the rotating shaft.
The box body 1 is fixed with a switch 25, the second wire 14 is electrically connected with the switch 25, and the motor 24 is electrically connected with the switch 25.
The frame 6 and the disc 11 are made of insulating materials, and the conducting ring 9, the ball body 13 and the third fixing shaft 12 are made of conducting copper materials.
For improving safety, an insulating cover 26 is fixed at the left end of the disc 11, and the conducting ring 9 rotates in the insulating cover 26.
The refrigerating device 3 comprises a compressor, a condenser, an evaporating dish, an expansion valve and the like.
The heating device 2 adopts a nichrome heater.
When the invention is used, the terms of indicating directions or position relations such as front, back, left, right, upper and lower are based on a front view, a box door is arranged on a box body 1, the box door adopts a hollow toughened glass observation window, the internal condition of the box body 1 is convenient to observe, temperature sensors positioned in a frame 6 are fixed on a first fixed shaft 4 and a second fixed shaft 5, a control box is fixed on the outer side of the box body 1, and a heating device 2, a refrigerating device 3 and the temperature sensors are respectively connected with the control box;
opening the box door, placing the sample to be tested on the clamping device, namely, placing the left end of the sample on the first supporting plate 16, placing the right end of the sample on the second supporting plate 17, wherein a gap exists between the first supporting plate 16 and the second supporting plate 17, so that the lower surface of the sample can be more exposed in the box body 1, the contact area of the sample with the environment is wide, and the high and low temperature test area of the sample is improved, in the process of placing the clamping device on the sample, the left end of the sample extrudes a plurality of first limiting shafts 18, the first limiting shafts 18 slide leftwards on the first supporting plate 16, the second spring 19 is in a stretching state, the right end of the sample extrudes a plurality of second limiting shafts 20, the second limiting shafts 20 slide rightwards in the first supporting plate 16, the third spring 21 is in a stretching state, after the sample is placed, under the common action of the second spring 19 and the third spring 21, the second spring 19 drives the first limiting shafts 18 to extrude the left end of the sample rightwards, meanwhile, the third spring 21 drives the second limiting shaft 20 to leftwards extrude the right end of the sample, and the first limiting shaft 18 and the second limiting shaft 20 simultaneously extrude the left end and the right end of the sample, so that the left and the right clamping of the sample is realized, and the positioning is convenient, the operation is simple, and the stability is good;
after the sample is placed, the box door is closed, the control box starts to adjust the temperature of the sample test, the heating device 2 or the refrigerating device 3 starts to work, the heating device 2 adopts a nichrome heater, the heating effect is good, the refrigerating device 3 comprises a compressor, a condenser, an evaporating dish, an expansion valve and the like, cold air can be rapidly generated, at the moment, a switch 25 is opened, the switch 25 simultaneously controls a motor 24 and a second wire 14, the motor 24 drives a rotating shaft to rotate, the rotating shaft drives a second gear 23 to coaxially rotate, the second gear 23 drives a first gear 22 to rotate, the right end of the first gear 22 is fixedly connected with the left end of a frame 6, the first gear 22 drives the frame 6 to rotate, namely, the frame 6 rotates around a first fixing shaft 4 and a second fixing shaft 5, the sample is fixed between the first fixing shaft 4 and the second fixing shaft 5, so that the frame 6 rotates around the sample, because the diameter of the first gear 22 is larger than that of the second gear 23, the second gear 23 drives the first gear 22 to rotate, a certain speed reduction effect is achieved, and thus a proper rotating speed of the first gear 22 is ensured, the right end of the first gear 22 is fixedly connected with the left end of the frame 6, and thus a proper rotating speed of the frame 6 is ensured, a plurality of through holes are uniformly distributed on the upper side surface and the lower side surface of the frame 6, the fan 7 positioned in the through holes is fixed on the frame 6, the conducting ring 9 coaxial with the second fixing shaft 5 is fixed on the right end of the frame 6, the conducting ring 9 is in a non-contact state with the second fixing shaft 5, the frame 6 drives the fan 7 and the conducting ring 9 to integrally rotate around a sample, meanwhile, the switch 25 enables the second electric wire 14 to be electrified, the second electric wire 14 is electrically connected with the third fixing shaft 12, the third fixing shaft 12 is rotatably connected with the sphere 13, the third fixing shaft 12 penetrates through the interior of the sphere 13, the ball 13 is connected with the conducting ring 9 in a rolling way, the conducting ring 9, the ball 13 and the third fixing shaft 12 are all made of conductive copper materials, the first electric wire 8 is connected with the conducting ring 9 from the frame 6, the safety is improved, the other end of the first electric wire 8 is electrically connected with the fan 7, and then the fans 7 start to work simultaneously, the fan 7 blows wind power to a sample position, the second fixing shaft 5 is coaxially fixed with a spline shaft 10, a disc 11 is connected to the spline shaft 10 in a left-right sliding way, a first spring 15 is installed between the right end of the disc 11 and the box body 1, the first spring 15 is in a compression state, under the action of the first spring 15, the disc 11 slides leftwards on the spline shaft 10, the disc 11 drives the third fixing shaft 12 and the ball 13 to move leftwards, the left-right position of the conducting ring 9 cannot change, the third fixing shaft 12 is in clearance fit with the ball 13, so that the outer surface of the ball 13 is tightly attached to the conducting ring 9, the inner surface of the sphere 13 and one side of the third fixed shaft 12 are in a squeezed state, in the process of the conducting ring 9 rotating around the second fixed shaft 5, the acting force of the first spring 15 is not enough to make the sphere 13 in a stuck state, so the conducting ring 9 can drive the sphere 13 to rotate, the conducting ring 9, the sphere 13 and the third fixed shaft 12 are always in a contact state, the conducting effect among the conducting ring 9, the sphere 13 and the third fixed shaft 12 is greatly ensured, the left end surface of the disc 11 is provided with a plurality of spheres 13, the conducting property of the spheres 13 is further ensured, in addition, the structure of the sphere 13 is adopted, the abrasion between the sphere 13 and the conducting ring 9 is reduced, when the abrasion phenomenon occurs among the conducting ring 9, the sphere 13 and the third fixed shaft 12, the first spring 15 drives the disc 11 to slide leftwards on the spline shaft 10 in a self-adaptive manner, and the conducting ring 9, the sphere 13 and the third fixed shaft 12 are always in a conducting state, the safety and the reliability are realized;
the upper side surface and the lower side surface of the frame 6 are respectively provided with a plurality of fans 7, the plurality of fans 7 simultaneously blow towards the sample, thereby accelerating the gas circulation in the box body 1, meanwhile, the frame 6 drives the fans 7 to rotate around the sample, further accelerating the circulation area of the gas in the box body 1, so that the gas in the box body 1 rapidly and uniformly flows towards the upper surface and the lower surface of the sample, no matter heating or refrigerating is performed, the gas in the box body 1 can be rapidly and uniformly stirred, the purpose of rapidly heating or cooling in the box body 1 is realized, the working efficiency is high, the first fixing shaft 4 and the second fixing shaft 5 are both fixedly provided with temperature sensors positioned in the frame 6, when the temperature of the box body 1 reaches the test temperature, the relevant data of the sample can be observed and recorded through an observation window, the operation is simple, the automation degree is high, in addition, the frame 6 and the disc 11 are both made of insulating materials, the electric leakage condition is avoided, the left end of the disc 11 is fixedly provided with an insulating cover 26, the conducting ring 9 rotates in the insulating cover 26, so that frost and fog generated under the refrigeration condition in the box body 1 are effectively prevented from falling onto the conducting ring 9, and further the use safety of equipment is influenced.
Compared with the traditional equipment, the invention has the following advantages: 1) the sample is skillfully clamped between the first fixing shaft 4 and the second fixing shaft 5 by adopting a clamping mechanism and utilizing the first limiting shaft 18 and the second limiting shaft 20, the left side and the right side of the sample are supported by the first supporting plate 16 and the second supporting plate 17 to a certain extent, the lower surface of the sample is occupied by a smaller space, the upper surface and the lower surface of the sample are exposed in the box body 1, the test area is wide, the temperature change test of the sample can be better carried out, and the test data is comprehensive; 2) the frame 6 can stir the gas in the box body 1 uniformly, the fan 7 continuously blows wind power to the sample position by combining the structure of the fan 7, and the fan 7 rotates around the sample along with the frame 6, so that the wind power on the surface of the sample is uniform, excessive heating or refrigeration of certain parts of the sample is avoided, the temperature in the box body 1 is adjusted rapidly, the temperature change efficiency is high, the time is saved, and the workload is increased; 3) by adopting the spline shaft 10 structure, the disc 11 can slide left and right on the second fixed shaft 5, the disc 11 can be prevented from rotating on the second fixed shaft 5, and the conduction effect of the conducting ring 9, the ball 13 and the third fixed shaft 12 is facilitated; 4) the first spring 15 has a certain compensation effect, so that continuous and stable conductive action among the conductive ring 9, the ball body 13 and the third fixed shaft 12 is ensured, the service life of the device is prolonged, later maintenance is reduced, and time and labor are saved.
The temperature change testing device is ingenious in structure, simple to operate, wide in contact area between the sample and the environment, high in automation degree, convenient to adjust, uniform in temperature, capable of achieving the best testing effect and good in market prospect, and greatly improves the temperature change efficiency inside the box body, and can carry out all-around temperature change tests on the sample.
Claims (6)
1. A walk-in high and low temperature rapid temperature change test box is characterized by comprising a box body (1), wherein a heating device (2) is arranged at the upper part in the box body (1), a refrigerating device (3) is arranged at the lower part in the box body (1), a first fixing shaft (4) and a second fixing shaft (5) which are horizontally arranged are fixed in the box body (1), the first fixing shaft (4) and the second fixing shaft (5) are arranged on the same axis, a clamping device is arranged between the first fixing shaft (4) and the second fixing shaft (5), the first fixing shaft (4) and the second fixing shaft (5) are both rotatably connected with a frame (6), a plurality of through holes are uniformly distributed on the upper side surface and the lower side surface of the frame (6), a fan (7) which is positioned in the through holes is fixed on the frame (6), a conducting ring (9) which is coaxial with the second fixing shaft (5) is fixed at the right end of the frame (6), and the fan (7) and the conducting ring (9) are electrically connected through a first electric wire (8), the spline shaft (10) is coaxially fixed on the second fixing shaft (5), the spline shaft (10) is connected with a disc (11) in a left-right sliding mode, a plurality of third fixing shafts (12) are uniformly distributed and fixed on the left end face of the disc (11), the third fixing shafts (12) are rotatably connected with balls (13) in rolling connection with the right end face of the conducting ring (9), the third fixing shafts (12) are electrically connected through second electric wires (14), and a first spring (15) is installed between the right end of the disc (11) and the box body (1).
2. The walk-in high and low temperature rapid temperature change test box according to claim 1, wherein the clamping device comprises a first support plate (16) and a second support plate (17), the first support plate (16) and the second support plate (17) are both L-shaped plates, the right end of the first fixing shaft (4) is fixedly connected with the first support plate (16), the left end of the second fixing shaft (5) is fixedly connected with the second support plate (17), a plurality of first limiting shafts (18) are slidably connected in the first support plate (16) from left to right, the first limiting shafts (18) are connected with the left end of the first support plate (16) through second springs (19), a plurality of second limiting shafts (20) are slidably connected in the second support plate (17) from left to right, and the second limiting shafts (20) are connected with the right end of the second support plate (17) through third springs (21).
3. The walk-in high and low temperature rapid temperature change test box according to claim 1, wherein the first fixed shaft (4) is rotatably connected with a first gear (22), the right end of the first gear (22) is fixedly connected with the left end of the frame (6), a horizontal rotating shaft is arranged in the box body (1), a second gear (23) meshed with the first gear (22) is coaxially fixed on the rotating shaft, a motor (24) is fixed on the outer side of the box body (1), and the motor (24) is coaxially and fixedly connected with the rotating shaft.
4. The walk-in high and low temperature rapid temperature change test chamber according to claim 1, wherein a switch (25) is fixed on the chamber body (1), the second wire (14) is electrically connected with the switch (25), and the motor (24) is electrically connected with the switch (25).
5. The walk-in high and low temperature rapid temperature change test chamber according to claim 1, wherein the frame (6) and the disc (11) are made of insulating materials, and the conductive ring (9), the ball body (13) and the third fixing shaft (11) are made of conductive copper materials.
6. The walk-in high and low temperature rapid temperature change test chamber according to claim 1, wherein an insulating cover (26) is fixed at the left end of the disk (11), and the conducting ring (9) rotates in the insulating cover (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011480256.9A CN114632555A (en) | 2020-12-15 | 2020-12-15 | Walk-in high-low temperature rapid temperature change test box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011480256.9A CN114632555A (en) | 2020-12-15 | 2020-12-15 | Walk-in high-low temperature rapid temperature change test box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114632555A true CN114632555A (en) | 2022-06-17 |
Family
ID=81944645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011480256.9A Pending CN114632555A (en) | 2020-12-15 | 2020-12-15 | Walk-in high-low temperature rapid temperature change test box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114632555A (en) |
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| US20080017636A1 (en) * | 2006-07-18 | 2008-01-24 | Tsann Kuen (China) Enterprise Co., Ltd. | Revolving base of microwave oven |
| CN201146318Y (en) * | 2007-11-18 | 2008-11-05 | 成都市宇中梅科技有限责任公司 | Ball type rotating conductive structure |
| CN206474180U (en) * | 2017-01-24 | 2017-09-08 | 东莞市环测检测设备有限公司 | The quick temperature changing test chamber of walk-in type high/low temperature |
| CN207198016U (en) * | 2017-09-14 | 2018-04-06 | 南京苏试广博环境可靠性实验室有限公司 | Sample clamp and salt-mist corrosion tester for salt-mist corrosion tester |
| CN210015029U (en) * | 2019-05-30 | 2020-02-04 | 电子科技大学中山学院 | Salt spray corrosion test box |
| CN211453426U (en) * | 2020-01-02 | 2020-09-08 | 中烨(山东)检验检测有限公司 | High-low temperature test device |
| CN211677818U (en) * | 2019-12-10 | 2020-10-16 | 丹泊仪器(昆山)有限公司 | High-temperature box with rotary air duct |
| CN211837944U (en) * | 2019-11-28 | 2020-11-03 | 重庆得思奥科技有限公司 | High-low temperature alternating test box |
| CN111948126A (en) * | 2020-09-10 | 2020-11-17 | 上海志勤环境技术有限公司 | Multifunctional salt spray test device |
-
2020
- 2020-12-15 CN CN202011480256.9A patent/CN114632555A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2725749Y (en) * | 2004-03-04 | 2005-09-14 | 欧阳维秀 | Rotary disk of electric chafing dish |
| US20080017636A1 (en) * | 2006-07-18 | 2008-01-24 | Tsann Kuen (China) Enterprise Co., Ltd. | Revolving base of microwave oven |
| CN201146318Y (en) * | 2007-11-18 | 2008-11-05 | 成都市宇中梅科技有限责任公司 | Ball type rotating conductive structure |
| CN206474180U (en) * | 2017-01-24 | 2017-09-08 | 东莞市环测检测设备有限公司 | The quick temperature changing test chamber of walk-in type high/low temperature |
| CN207198016U (en) * | 2017-09-14 | 2018-04-06 | 南京苏试广博环境可靠性实验室有限公司 | Sample clamp and salt-mist corrosion tester for salt-mist corrosion tester |
| CN210015029U (en) * | 2019-05-30 | 2020-02-04 | 电子科技大学中山学院 | Salt spray corrosion test box |
| CN211837944U (en) * | 2019-11-28 | 2020-11-03 | 重庆得思奥科技有限公司 | High-low temperature alternating test box |
| CN211677818U (en) * | 2019-12-10 | 2020-10-16 | 丹泊仪器(昆山)有限公司 | High-temperature box with rotary air duct |
| CN211453426U (en) * | 2020-01-02 | 2020-09-08 | 中烨(山东)检验检测有限公司 | High-low temperature test device |
| CN111948126A (en) * | 2020-09-10 | 2020-11-17 | 上海志勤环境技术有限公司 | Multifunctional salt spray test device |
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Application publication date: 20220617 |