CN102486338A - Hot air internal recycling high-temperature ageing room - Google Patents

Hot air internal recycling high-temperature ageing room Download PDF

Info

Publication number
CN102486338A
CN102486338A CN2010105747520A CN201010574752A CN102486338A CN 102486338 A CN102486338 A CN 102486338A CN 2010105747520 A CN2010105747520 A CN 2010105747520A CN 201010574752 A CN201010574752 A CN 201010574752A CN 102486338 A CN102486338 A CN 102486338A
Authority
CN
China
Prior art keywords
burn
temperature
laid
air
chamber
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.)
Pending
Application number
CN2010105747520A
Other languages
Chinese (zh)
Inventor
李美川
张超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xian Dayu Optoelectronic Technology Co Ltd
Original Assignee
Xian Dayu Optoelectronic Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xian Dayu Optoelectronic Technology Co Ltd filed Critical Xian Dayu Optoelectronic Technology Co Ltd
Priority to CN2010105747520A priority Critical patent/CN102486338A/en
Publication of CN102486338A publication Critical patent/CN102486338A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Ventilation (AREA)

Abstract

The invention discloses a hot air internal recycling high-temperature ageing room. The high temperature ageing room comprises an room body enclosed by a thermal segregation wall, a circulating channel which can continually introduce hot air to an ageing region in the ageing room and multiple temperature-detecting devices in a circulate mode, wherein the circulating channel comprises a heating mechanism, a fan, an inlet air channel and an air return channel, wherein the inlet air channel is used for continually introducing hot air after being heated by the heating mechanism into the ageing region through multiple air inlets, and the air return channel is used for absorbing air in the ageing region to the side of the heating mechanism through multiple air return ports under the action of the fan; and the heating mechanism is arranged in the inlet air channel and the fan is arranged in the air return channel, the inlet air channel is positioned right above the air return channel, and the inlet air channel is communicated with the inlet air channel through a vertical connecting pipe. The high temperature ageing room provided by the invention has the advantages of simple structure, is easy to operate, low in cost and has good using effect, and is convenience to realize; and can be used for effectively solving a temperature maldistribution problem in the ageing region through adjusting a heating state and shutter states of an air inlet and an air return port.

Description

Cyclic high-temperature burn-in chamber in the hot blast
Technical field
The present invention relates to a kind of high temperature ageing room, especially relate to cyclic high-temperature burn-in chamber in a kind of hot blast.
Background technology
Burn-in chamber; Cry again and burn machine room; Be the equipment that simulates a kind of high temperature, abominable test environment to high-performance electronic product (as: computer complete machine, display, terminating machine, auto electronic product, power supply unit, motherboard, monitor and switch type charger etc.); Be the important experimental equipment that improves product stability, reliability, this equipment has been widely used in fields such as power supply electronic, computer, communication, bio-pharmaceuticals.The high low temperature degradation of electronic product is to get rid of electronic product initial failure, the necessary means of control product quality.The uniformity of Temperature Distribution is the important technology index of burn-in chamber in the burn-in chamber, with directly influencing the aging result who is placed on electronic product in the different burn-in chambers zone.At present; The employed electronic product burn-in chamber of domestic a lot of enterprise; Its temperature control system often only detects in the burn-in chamber certain any temperature, thereby exists former burn-in chamber single-point monitor temperature to cause aging regional temperature skewness, air channel to be installed in the outdoor practical problems such as construction is inconvenient, production cost is high, aging effect is undesirable that cause in the actual use.
Summary of the invention
Technical problem to be solved by this invention is to above-mentioned deficiency of the prior art; Cyclic high-temperature burn-in chamber in a kind of hot blast is provided; It is simple in structure, laying is convenient, use is easy and simple to handle and result of use is good, can monitor multi-point temp in the burn-in chamber simultaneously, through adjusting heat the state of mechanism and advance, the shutter state of return-air mouth; The even problem of temperature distributing disproportionation in the aging zone be can effectively solve, difficulty of construction and production cost reduced simultaneously to a certain extent.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: cyclic high-temperature burn-in chamber in a kind of hot blast; It is characterized in that: comprise a plurality of temperature-detecting devices by hot divider wall surrounds and the burn-in chamber room body of inner sealing, circulation are constantly sent into the circulation canal of hot blast and respectively many places temperature in the aging zone detected in real time in the aging zone in burn-in chamber room body; Said circulation canal and a plurality of said temperature-detecting device all are laid in the burn-in chamber room body, and a plurality of said temperature-detecting device evenly is laid in the said burn-in chamber room body; Said circulation canal comprises and is laid in the heating mechanism, be laid in the blower fan that heats under the mechanism of upper center in the said burn-in chamber room body, will heats hot-air after the mechanism heats through a plurality of air inlets and successively send into the air intake passage in the aging zone and under the effect of blower fan, be drawn to continuously and heat the return air channel that all sides of mechanism heat through will wear out air in the zone of a plurality of return air inlets; The said mechanism that heats is laid in the air intake passage and blower fan is laid in the return air channel, air intake passage directly over the return air channel and between the two through vertically in being laid in said burn-in chamber room body the connection pipeline of upper center be communicated with; A plurality of said air inlets are installed on the air intake passage and air intake passage and a plurality of said air inlet all are laid in said burn-in chamber room body inside upper part; A plurality of said return air inlets are installed on the return air channel and a plurality of said return air inlet all is laid in said burn-in chamber room body lower inside; Said air intake passage and a plurality of air inlet all are positioned at the return air channel top, and a plurality of said air inlets and a plurality of said return air inlet evenly are laid in the said burn-in chamber room body.
Cyclic high-temperature burn-in chamber in above-mentioned a kind of hot blast is characterized in that: a plurality of said air inlets all be level to lay and its opening all vertically down, a plurality of said return air inlets all are vertically to laying and the equal body middle inside towards said burn-in chamber room of its opening.
Cyclic high-temperature burn-in chamber in above-mentioned a kind of hot blast; It is characterized in that: the I-shaped passage one of said air intake passage for forming by a vertical duct one and two horizontal pipelines one joining with vertical duct one rear and front end respectively; Said I-shaped passage one level is to being laid in said burn-in chamber room body inside upper part; The quantity of said air inlet is four, and four air inlets are installed in the left and right end portions of two said horizontal pipelines one respectively.
Cyclic high-temperature burn-in chamber in above-mentioned a kind of hot blast; It is characterized in that: said return air channel comprises the I-shaped passage two be made up of a vertical duct two and two horizontal pipelines two joining with vertical duct two rear and front ends respectively and joins with said vertical duct two middle parts and extend the horizontal pipeline three of said burn-in chamber room body inside back; Said I-shaped passage two and horizontal pipeline three average levels are to being laid in the inboard middle and upper part of said burn-in chamber room body and all being laid in said I-shaped passage one below; The quantity of said return air inlet is five, and five return air inlets are installed in the outer end of said horizontal pipeline three and the right ends portion of two said horizontal pipelines two through vertical connecting leg respectively.
Cyclic high-temperature burn-in chamber in above-mentioned a kind of hot blast is characterized in that: said burn-in chamber room body be shaped as cube, and the right ends portion of two said horizontal pipelines two extends four interior angle places of said burn-in chamber room body respectively.
Cyclic high-temperature burn-in chamber in above-mentioned a kind of hot blast, it is characterized in that: said temperature-detecting device is a thermocouple.
Cyclic high-temperature burn-in chamber in above-mentioned a kind of hot blast, it is characterized in that: the quantity of said thermocouple is 6, and 6 thermocouples divide two rows evenly to be laid in the said burn-in chamber room body.
Cyclic high-temperature burn-in chamber in above-mentioned a kind of hot blast is characterized in that: be provided with the adjustable shutter of setting angle on said air inlet and the return air inlet.
The present invention compared with prior art has the following advantages:
1, simple in structure, cost is low and each assembly is easy for installation.
2, use easy and simple to handle and the realization convenience; Quantity through reasonable Arrangement circulation canal and corresponding increase air inlet, return air inlet and indoor thermoelectric idol; Automatically regulate the angle that air inlet and return air inlet are attend institute's installation shutter, effectively guaranteed the even distributivity of aging regional temperature, and reliable working performance; Guarantee the accuracy of experiment, reduced difficulty of construction and production cost.
3, reliable working performance and result of use are good; The present invention has solved the difficult problem of temperature distributing disproportionation in the burn-in chamber through hot air circulating system; And realized the multiple spot in the aging zone is carried out the purpose of thermometric simultaneously, thereby effectively guaranteed the uniformity of Temperature Distribution in the burn-in chamber.In the actual use; Air in the burn-in chamber gets into return air channel from return air inlet; And along return air channel move and through blower fan with heat mechanism after; Air themperature is raised, and it is indoor to get back to burn-in chamber through air intake passage from air inlet again, has so just realized the whole evenly purpose of heating is carried out in aging zone.In addition; Because a cover hot blast internal circulation system has five return air inlets and four air inlets, each air port evenly distributes at indoor one-tenth symmetrical expression, and the air port has shutter that wind direction is led; Make its area coverage increase greatly, effectively guaranteed the even intensification in aging zone aging zone.Simultaneously, in the hydronic process of room air, be positioned at the temperature that indoor a plurality of thermocouples will be monitored each point, in time grasp the Temperature Distribution situation in aging zone, the inaccurate drawback of the temperature survey of having avoided spot measurement to cause.
In sum; The present invention is simple in structure, laying is convenient, use is easy and simple to handle and result of use is good; Can monitor multi-point temp in the burn-in chamber simultaneously; Through adjusting heat the state of mechanism and advance, the shutter state of return-air mouth, can effectively solve the even problem of temperature distributing disproportionation in the aging zone, reduced difficulty of construction and production cost simultaneously to a certain extent; Can overcome the air channel and be installed in practical problems such as the outdoor construction inconvenience that causes, high production cost, thereby improve the aging result of electronic product greatly.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Fig. 1 is an internal structure sketch map of the present invention.
Fig. 2 is a top structure sketch map of the present invention.
Description of reference numerals:
The hot divider wall of 1-; The 2-return air inlet; The 3-return air channel;
The 4-air inlet; The 5-air intake passage; The 6-blower fan;
7-heats mechanism; The 8-thermocouple.
The specific embodiment
Like Fig. 1, shown in Figure 2; The present invention includes a plurality of temperature-detecting devices by hot divider wall 1 surrounds and the burn-in chamber room body of inner sealing, circulation are constantly sent into the circulation canal of hot blast and respectively many places temperature in the aging zone detected in real time in the aging zone in burn-in chamber room body; Said circulation canal and a plurality of said temperature-detecting device all are laid in the burn-in chamber room body, and a plurality of said temperature-detecting device evenly is laid in the said burn-in chamber room body.Said circulation canal comprises and is laid in the heating mechanism 7, be laid in the blower fan 6 that heats under the mechanism 7 of upper center in the said burn-in chamber room body, will heats hot-air after mechanism's 7 heating through a plurality of air inlets 4 and successively send into the air intake passage 5 in the aging zone and under the effect of blower fan 6, be drawn to continuously and heat the return air channel 3 that mechanism's 7 all sides heat through will wear out air in the zone of a plurality of return air inlets 2; The said mechanism 7 that heats is laid in the air intake passage 5 and blower fan 6 is laid in the return air channel 3, air intake passage 5 directly over the return air channel 3 and between the two through vertically in being laid in said burn-in chamber room body the connection pipeline of upper center be communicated with.A plurality of said air inlets 4 are installed on the air intake passage 5 and air intake passage 5 all is laid in said burn-in chamber room body inside upper part with a plurality of said air inlets 4; A plurality of said return air inlets 2 are installed on the return air channel 3 and a plurality of said return air inlet 2 all is laid in said burn-in chamber room body lower inside; Said air intake passage 5 all is positioned at return air channel 3 tops with a plurality of air inlets 4, and a plurality of said air inlets 4 evenly are laid in the said burn-in chamber room body with a plurality of said return air inlets 2.
In the present embodiment, a plurality of said air inlets 4 all be level to lay and its opening all vertically down, a plurality of said return air inlets 2 all are vertically to laying and the equal body middle inside towards said burn-in chamber room of its opening.
In the present embodiment; The I-shaped passage one of said air intake passage 5 for forming by a vertical duct one and two horizontal pipelines one joining with vertical duct one rear and front end respectively; Said I-shaped passage one level is to being laid in said burn-in chamber room body inside upper part; The quantity of said air inlet 4 is four, and four air inlets 4 are installed in the left and right end portions of two said horizontal pipelines one respectively.Said return air channel 3 comprises the I-shaped passage two be made up of a vertical duct two and two horizontal pipelines two joining with vertical duct two rear and front ends respectively and joins with said vertical duct two middle parts and extend the horizontal pipeline three of said burn-in chamber room body inside back; Said I-shaped passage two and horizontal pipeline three average levels are to being laid in the inboard middle and upper part of said burn-in chamber room body and all being laid in said I-shaped passage one below; The quantity of said return air inlet 2 is five, and five return air inlets 2 are installed in the outer end of said horizontal pipeline three and the right ends portion of two said horizontal pipelines two through vertical connecting leg respectively.
In the present embodiment, said burn-in chamber room body be shaped as cube, and the right ends portion of two said horizontal pipelines two extends four interior angle places of said burn-in chamber room body respectively.Said temperature-detecting device is a thermocouple 8.The quantity of said thermocouple 8 is 6, and 8 minutes two rows of 6 thermocouples evenly are laid in the said burn-in chamber room body.
In the actual use, can be according to the concrete needs of reality, the quantity of thermocouple 8, air inlet 4 and return air inlet 2 is adjusted accordingly.In addition, in the present embodiment, be provided with the adjustable shutter of setting angle on said air inlet 4 and the return air inlet 2.
In the actual use, blower fan 6 rotates to the air in the aging zone provides mobilization dynamic, and air is sucked return air inlet 2; After getting into return air channel 3 and process blower fan 6 then; Arrival heats mechanism 7, and air temperature rising under the effect that heats mechanism 7, and the air after the heating continues to move until be expelled to aging zone from air inlet 4 in along air intake passage 5 subsequently; The heat cycles of so going round and beginning again is up to making aging regional temperature reach temperature required.In circulation heating process, to lay the thermocouple 8 of many places in the aging zone and uninterruptedly temperature in the aging zone is measured in real time, thereby realized multi-point equispaced thermometric, whole heating process can effectively guarantee the uniformity that aging regional temperature distributes.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any restriction, every technical spirit changes any simple modification, change and the equivalent structure that above embodiment did according to the present invention, all still belongs in the protection domain of technical scheme of the present invention.

Claims (8)

1. cyclic high-temperature burn-in chamber in the hot blast; It is characterized in that: comprise a plurality of temperature-detecting devices by hot divider wall (1) surrounds and the burn-in chamber room body of inner sealing, circulation are constantly sent into the circulation canal of hot blast and respectively many places temperature in the aging zone detected in real time in the aging zone in burn-in chamber room body; Said circulation canal and a plurality of said temperature-detecting device all are laid in the burn-in chamber room body, and a plurality of said temperature-detecting device evenly is laid in the said burn-in chamber room body; Said circulation canal comprises and is laid in the heating mechanism (7), be laid in the blower fan (6) that heats under the mechanism (7) of upper center in the said burn-in chamber room body, will heats hot-air after mechanism (7) heating through a plurality of air inlets (4) and successively send into the air intake passage (5) in the aging zone and under the effect of blower fan (6), be drawn to continuously and heat the return air channel (3) that all sides of mechanism (7) heat through will wear out air in regional of a plurality of return air inlets (2); The said mechanism (7) that heats is laid in the air intake passage (5) and blower fan (6) is laid in the return air channel (3), air intake passage (5) be positioned at directly over the return air channel (3) and between the two through vertically being communicated with to the connection pipeline that is laid in said burn-in chamber room body upper center; A plurality of said air inlets (4) are installed in that air intake passage (5) is gone up and air intake passage (5) and a plurality of said air inlet (4) all are laid in said burn-in chamber room body inside upper part; A plurality of said return air inlets (2) are installed on the return air channel (3) and a plurality of said return air inlets (2) all are laid in said burn-in chamber room body lower inside; Said air intake passage (5) and a plurality of air inlet (4) all are positioned at return air channel (3) top, and a plurality of said air inlets (4) and a plurality of said return air inlet (2) evenly are laid in the said burn-in chamber room body.
2. according to cyclic high-temperature burn-in chamber in the described hot blast of claim 1; It is characterized in that: a plurality of said air inlets (4) all be level to lay and its opening all vertically down, a plurality of said return air inlets (2) all are vertically to laying and the equal body middle inside towards said burn-in chamber room of its opening.
3. according to cyclic high-temperature burn-in chamber in claim 1 or the 2 described hot blasts; It is characterized in that: the I-shaped passage one of said air intake passage (5) for forming by a vertical duct one and two horizontal pipelines one joining with vertical duct one rear and front end respectively; Said I-shaped passage one level is to being laid in said burn-in chamber room body inside upper part; The quantity of said air inlet (4) is four, and four air inlets (4) are installed in the left and right end portions of two said horizontal pipelines one respectively.
4. according to cyclic high-temperature burn-in chamber in the described hot blast of claim 3; It is characterized in that: said return air channel (3) comprises the I-shaped passage two be made up of a vertical duct two and two horizontal pipelines two joining with vertical duct two rear and front ends respectively and joins with said vertical duct two middle parts and extend the horizontal pipeline three of said burn-in chamber room body inside back; Said I-shaped passage two and horizontal pipeline three average levels are to being laid in the inboard middle and upper part of said burn-in chamber room body and all being laid in said I-shaped passage one below; The quantity of said return air inlet (2) is five, and five return air inlets (2) are installed in the outer end of said horizontal pipeline three and the right ends portion of two said horizontal pipelines two through vertical connecting leg respectively.
5. according to cyclic high-temperature burn-in chamber in the described hot blast of claim 4, it is characterized in that: said burn-in chamber room body be shaped as cube, and the right ends portion of two said horizontal pipelines two extends four interior angle places of said burn-in chamber room body respectively.
6. according to cyclic high-temperature burn-in chamber in claim 1 or the 2 described hot blasts, it is characterized in that: said temperature-detecting device is thermocouple (8).
7. according to cyclic high-temperature burn-in chamber in the described hot blast of claim 6, it is characterized in that: the quantity of said thermocouple (8) is 6, and 6 thermocouples (8) divide two rows evenly to be laid in the said burn-in chamber room body.
8. according to cyclic high-temperature burn-in chamber in claim 1 or the 2 described hot blasts, it is characterized in that: be provided with the adjustable shutter of setting angle on said air inlet (4) and the return air inlet (2).
CN2010105747520A 2010-12-06 2010-12-06 Hot air internal recycling high-temperature ageing room Pending CN102486338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010105747520A CN102486338A (en) 2010-12-06 2010-12-06 Hot air internal recycling high-temperature ageing room

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010105747520A CN102486338A (en) 2010-12-06 2010-12-06 Hot air internal recycling high-temperature ageing room

Publications (1)

Publication Number Publication Date
CN102486338A true CN102486338A (en) 2012-06-06

Family

ID=46151863

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010105747520A Pending CN102486338A (en) 2010-12-06 2010-12-06 Hot air internal recycling high-temperature ageing room

Country Status (1)

Country Link
CN (1) CN102486338A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103323048A (en) * 2013-05-28 2013-09-25 郑州精益达汽车零部件有限公司高新区分公司 Automobile instrument panel dynamic aging system under high temperature
CN107457892A (en) * 2017-08-16 2017-12-12 顾玉城 A kind of ceramics making draft chamber
CN108414912A (en) * 2018-03-01 2018-08-17 上海华岭集成电路技术股份有限公司 Finished semiconductor high/low temperature multistation test device
CN113406423A (en) * 2021-06-30 2021-09-17 武汉普赛斯电子技术有限公司 Electronic device aging test system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59100340A (en) * 1982-11-30 1984-06-09 Mitsubishi Electric Corp Heating apparatus by hot air
CN1755381A (en) * 2004-09-30 2006-04-05 华为技术有限公司 Electronic apparatus aging method based on heat radiator
CN2864658Y (en) * 2005-06-27 2007-01-31 赖文彬 Automatic product aging test facility
CN201522656U (en) * 2009-11-02 2010-07-07 西安中科麦特电子技术设备有限公司 Multipoint temperature monitoring and controlling system for aging room of electronic products
CN201531941U (en) * 2009-11-02 2010-07-21 西安中科麦特电子技术设备有限公司 Hot air circulation system for electronic product aging room
CN201531969U (en) * 2009-11-02 2010-07-21 胡剑峰 Circulation ventilation fan system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59100340A (en) * 1982-11-30 1984-06-09 Mitsubishi Electric Corp Heating apparatus by hot air
CN1755381A (en) * 2004-09-30 2006-04-05 华为技术有限公司 Electronic apparatus aging method based on heat radiator
CN2864658Y (en) * 2005-06-27 2007-01-31 赖文彬 Automatic product aging test facility
CN201522656U (en) * 2009-11-02 2010-07-07 西安中科麦特电子技术设备有限公司 Multipoint temperature monitoring and controlling system for aging room of electronic products
CN201531941U (en) * 2009-11-02 2010-07-21 西安中科麦特电子技术设备有限公司 Hot air circulation system for electronic product aging room
CN201531969U (en) * 2009-11-02 2010-07-21 胡剑峰 Circulation ventilation fan system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103323048A (en) * 2013-05-28 2013-09-25 郑州精益达汽车零部件有限公司高新区分公司 Automobile instrument panel dynamic aging system under high temperature
CN103323048B (en) * 2013-05-28 2015-08-19 郑州精益达汽车零部件有限公司高新区分公司 Automobile instrument panel dynamic burn-in systems under high temperature
CN107457892A (en) * 2017-08-16 2017-12-12 顾玉城 A kind of ceramics making draft chamber
CN108414912A (en) * 2018-03-01 2018-08-17 上海华岭集成电路技术股份有限公司 Finished semiconductor high/low temperature multistation test device
CN113406423A (en) * 2021-06-30 2021-09-17 武汉普赛斯电子技术有限公司 Electronic device aging test system

Similar Documents

Publication Publication Date Title
CN201531941U (en) Hot air circulation system for electronic product aging room
CN102486338A (en) Hot air internal recycling high-temperature ageing room
CN102478645A (en) High-temperature environment testing device for LED streetlamps
CN102486321A (en) LED (light-emitting diode) street lamp low temperature environment aging room
CN103836919A (en) Temperature control device of solar cell sintering furnace
CN102053641A (en) Hot air circulating system for aging room of electronic product
CN204575496U (en) The gas diffusion test confined chamber of adjustable meteorologic parameter
CN202792825U (en) Clean blast drying cabinet
CN201897367U (en) High-temperature uniform type energy-saving oven with high control precision
CN207863545U (en) Battery testing burn-in chamber
CN103134105A (en) Indoor temperature adjusting controller for concentrated heating residents
CN206557623U (en) A kind of intelligent heat preserving curing means for concrete structure
CN104566777B (en) Style semiconductor air conditioner for pinpointing orientation temperature control
CN106680312A (en) Device for testing heat loss of membrane type wall structure boiler
CN104089787A (en) Radiation tail end performance testing device based on external environment control
CN204438509U (en) Building exterior-protected Site Detection heating indoor device
CN102486453B (en) Low temperature environment testing apparatus
CN204301171U (en) Floor heating turbid water system
CN204583214U (en) A kind of elevated temperature thermal cycles burn-in chamber
CN202854309U (en) Movable type LED lamp high temperature environmental aging room
CN208596140U (en) It is a kind of for gas-chromatography transmission line without heat source temperature regulating device
CN103245019A (en) Improved aging room
CN209341696U (en) A kind of electrical heat tracing device
CN206574825U (en) A kind of battery compartment of application gaseous exchange circulating heater
CN207303695U (en) A kind of power distribution cabinet

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120606