CN209901320U - Integrated ultra-low temperature high-temperature test box - Google Patents
Integrated ultra-low temperature high-temperature test box Download PDFInfo
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- CN209901320U CN209901320U CN201920599742.9U CN201920599742U CN209901320U CN 209901320 U CN209901320 U CN 209901320U CN 201920599742 U CN201920599742 U CN 201920599742U CN 209901320 U CN209901320 U CN 209901320U
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Abstract
The utility model relates to an integrated ultra-low temperature high temperature test box, which comprises a box body, wherein the upper part in the box body is provided with a working chamber, the left side wall of the box body is provided with a test hole, the rear side of the box body is provided with a liquid nitrogen inlet which is communicated with the inside of the working chamber through a liquid nitrogen inlet pipe, the liquid nitrogen inlet pipe is provided with an air inlet valve, the other end of the liquid nitrogen inlet is connected with a liquid nitrogen steel bottle, the rear side of the working chamber is provided with a first air channel, the first air channel is internally provided with a heater, a circulating air drum is arranged above the heater and connected with the output end of a circulating motor, the lower part of the working chamber is provided with a second air channel, the second air channel, an air channel switching valve is arranged between the air channel II and the air channel I, and a switching valve II is arranged between the working chamber and the air channel I; compared with the prior art, the utility model, when keeping that the user can select to do the fast temperature change, realized energy saving and consumption reduction's effect.
Description
[ technical field ]
The utility model belongs to the technical field of the environmental test case technique and specifically relates to an integral type ultra-low temperature high temperature test case.
[ background art ]
With the rapid development of modern industrial technology, the application fields of electricians and electronic products are increasingly wide, and the environmental conditions to which the electricians and electronic products are subjected are increasingly complex and diversified. The ultra-low temperature/high temperature test chamber can continuously simulate the stability and tolerance degree of the material performance of a test product at the extreme high temperature and the extreme low temperature, and is used for links such as product design, improvement, identification and inspection.
At present, the conventional ultralow temperature/high temperature test equipment on the market has the following defects:
(1) the test box has a single function and can only simulate an ultra-low temperature or ultra-high temperature environment, because the extreme high temperature of the refrigeration oil of the refrigeration system is about 180 ℃;
(2) the high-temperature box is not provided with an observation window, so that the observation of the test condition of the working room is unclear and inconvenient;
(3) if the temperature needs to be quickly reduced, the price of the refrigerating system is high, and the set cost is greatly increased by performing quick temperature reduction once a time, so that the cost is not very cost-effective;
(4) if only liquid nitrogen is simply equipped for cooling, the liquid nitrogen is consumed at constant temperature, the liquid nitrogen is not cost-effective for long-term use, and the liquid nitrogen bottle needs to be replaced frequently, so that the use of a user is inconvenient.
[ contents of utility model ]
The utility model aims at solving foretell not enough and provide an integral type ultra-low temperature high temperature test case, when keeping that the user can select to do fast temperature change, realized energy saving and consumption reduction's effect, furthest has widened experimental warm area, makes high temperature and low temperature integration in a proof box to realize automatic switch-over.
The integrated ultra-low temperature and high temperature test box comprises a box body 13, a box door 14 is arranged on the front end face of the box body 13, a working chamber 15 is arranged on the inner upper portion of the box body 13, a sample frame 16 is installed in the working chamber 15, a test hole 6 is formed in the left side wall of the box body 13, the test hole 6 is communicated with the inside of the working chamber 15, a liquid nitrogen air inlet is formed in the rear side of the box body 13 and communicated with the inside of the working chamber 15 through a liquid nitrogen inlet pipe, an air inlet valve 5 is arranged on the liquid nitrogen inlet pipe, the other end of the liquid nitrogen air inlet is connected with a steel cylinder through a hose, an air channel 17 is arranged on the rear side of the working chamber 15, a heater 3 is arranged in the air channel 17, a circulating air drum 2 is installed above the heater 3 and connected to the output end of a circulating air drum 2, the circulating, the utility model discloses a refrigerator, including studio 15, air duct two 18, evaporator 4, pipe connection condenser 11, air duct two 18, air duct two 19 has all been installed to switching valve 12 between studio 15 and the air duct 17 between studio 15 and the air duct two 18 and between air duct two 18 and the air duct one 17.
Further, an electrical cabinet 20 is arranged on the right side of the box body 13, an exhaust valve 9 is arranged in the electrical cabinet 20, the exhaust valve 9 is communicated with the interior of the working chamber 15 through a pipeline, a control panel 8 is arranged on the front end face of the electrical cabinet 20, and the heater 3, the air inlet valve 5, the circulating motor 1, the evaporator 4, the condenser 11, the compressor, the air duct switching valve 12 and the switching valve 19 are respectively connected with the control panel 8 through lines.
Furthermore, windows 7 are arranged on the box door 14 and the top of the working chamber 15, the windows 7 are vacuum heat insulation glass windows, and the illuminating lamp 10 is arranged above the working chamber 15.
Further, the circulating motor 1 comprises a long shaft fan motor and a stainless steel multi-wing impeller, the long shaft output end of the circulating motor 1 is connected with a circulating air drum 2, and the circulating air drum 2 is arranged above the working chamber 15.
Compared with the prior art, the utility model, have following advantage:
(1) the utility model has the advantages that the special design is carried out on the working chamber for the convenience of users to observe the test condition of the working chamber, and the oversized multilayer vacuum heat insulation glass windows are added on the chamber door and the top of the working chamber, so that the test condition can be observed more conveniently and clearly;
(2) the utility model realizes the effects of energy saving and consumption reduction by an economical scheme of liquid nitrogen auxiliary rapid temperature and constant temperature of the compressor while keeping the user to select rapid temperature change;
(3) the utility model discloses after closing the evaporimeter wind channel, guaranteeing that compressor lubricating oil is no longer than under the highest service temperature (about 180 degrees) condition, furthest has widened experimental warm area, makes high temperature 350 degrees and low temperature-180 degrees can be integrated in a proof box, in same test procedure, realizes automatic switch-over moreover, and the user uses very convenient energy-conservation, is worth popularizing and applying.
[ description of the drawings ]
Fig. 1 is a schematic front structural view of the present invention;
fig. 2 is a left side schematic view of the present invention;
fig. 3 is a schematic top view of the present invention;
in the figure: 1. the device comprises a circulating motor 2, a circulating air drum 3, a heater 4, an evaporator 5, an air inlet valve 6, a test hole 7, a window 8, a control panel 9, an exhaust valve 10, an illuminating lamp 11, a condenser 12, an air channel switching valve 13, a box body 14, a box door 15, a working chamber 16, a sample rack 17, a first air channel 18, a second air channel 19, a second switching valve 20 and an electric cabinet.
[ detailed description of the invention ]
The invention is further described below with reference to the accompanying drawings:
as shown in the attached drawing, the utility model comprises a box body 13, a box door 14 is arranged on the front end face of the box body 13, a working chamber 15 is arranged on the upper portion in the box body 13, a sample holder 16 is arranged in the working chamber 15, a testing hole 6 is arranged on the left side wall of the box body 13, the testing hole 6 is communicated with the inside of the working chamber 15, a liquid nitrogen inlet is arranged on the rear side of the box body 13 and communicated with the inside of the working chamber 15 through a liquid nitrogen inlet pipe, an air inlet valve 5 is arranged on the liquid nitrogen inlet pipe, the other end of the liquid nitrogen inlet is connected with a liquid nitrogen steel cylinder through a hose, an air duct I17 is arranged on the rear side of the working chamber 15, a heater 3 is arranged in the air duct I17, a circulating air drum 2 is arranged above the heater 3, the circulating air drum 2 is connected with the output end of the circulating motor 1, the circulating motor, the condenser 11 is connected with the compressor through a pipeline, the condenser 11 is arranged at the rear part in the box body 13, air channel switching valves 12 are respectively arranged between the working chamber 15 and the second air channel 18 and between the second air channel 18 and the first air channel 17, a switching valve second 19 is arranged between the working chamber 15 and the first air channel 17, and the air channel switching valve 12 and the switching valve second 19 are both electric valves.
The right side of the box body 13 is provided with an electrical cabinet 20, an exhaust valve 9 is arranged in the electrical cabinet 20, the exhaust valve 9 is communicated with the interior of the working chamber 15 through a pipeline, the front end face of the electrical cabinet 20 is provided with a control panel 8, and the heater 3, the air inlet valve 5, the circulating motor 1, the evaporator 4, the condenser 11, the compressor, the air channel switching valve 12 and the switching valve II 19 are respectively connected with the control panel 8 through lines; the box door 14 and the top of the working chamber 15 are both provided with a window 7, the window 7 is a vacuum heat insulation glass window, and an illuminating lamp 10 is arranged above the working chamber 15; the circulating motor 1 comprises a long shaft fan motor and a stainless steel multi-wing impeller, the long shaft output end of the circulating motor 1 is connected with a circulating air drum 2, and the circulating air drum 2 is arranged above the working chamber 15.
The utility model discloses a theory of operation does: the test box is simultaneously provided with a mechanical compressor for refrigeration and liquid nitrogen for refrigeration, when the temperature is increased and decreased conventionally, the controller only starts the compressor for slow temperature reduction and constant temperature, when the temperature is required to be changed rapidly, the compressor and the liquid nitrogen are simultaneously refrigerated, when a set value is reached (the set value between 70 ℃ below zero and 180 ℃), the liquid nitrogen stops working, and only the compressor is used for keeping the temperature, so that an economical scheme that the liquid nitrogen assists rapid temperature and the compressor is kept constant temperature is realized; meanwhile, through the optimized design, the temperature range of the test box can reach-180-350 ℃, and the requirement of more artificial simulation temperature environments can be met. Two air channels are arranged in the test box, air doors are switched through electric valves and are divided at a temperature of-70-180 ℃, air channels of an evaporator of a compressor are opened in the temperature interval, and air of the whole test box firstly passes through the evaporator and then passes through a heating pipe and a wind wheel to be blown out, so that a complete cycle is formed; when the test temperature is not in the interval, the air channel switching valve automatically closes the air channel of the evaporator, the switching valve II is opened, and the conventional air channel is opened, so that the evaporator is prevented from being influenced by ultrahigh temperature and ultralow temperature.
The present invention is not limited by the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and are all included in the protection scope of the present invention.
Claims (4)
1. The utility model provides an integral type ultra-low temperature high temperature test case, includes box (13), be equipped with chamber door (14), its characterized in that on the terminal surface before box (13): the upper portion is equipped with studio (15) in box (13), install sample holder (16) in studio (15), seted up test hole (6) on the box (13) left side wall, test hole (6) are linked together with studio (15) inside, the liquid nitrogen air inlet has been seted up to box (13) rear side, the liquid nitrogen air inlet advances the pipe through the liquid nitrogen and is linked together with studio (15) inside, liquid nitrogen advances the pipe facial make-up and is equipped with air inlet valve (5), the liquid nitrogen air inlet other end passes through the hose connection liquid nitrogen steel bottle, studio (15) rear side is equipped with wind channel (17), the built-in heater (3) that is equipped with of wind channel (17), circulation air drum (2) is installed to heater (3) top, circulation air drum (2) are connected at circulation motor (1) output, circulation motor (1) is installed at box (13) top, the utility model discloses a refrigerator, including working room (15), air duct two (18) are equipped with to the below of working room (15), built-in evaporimeter (4) that is equipped with in air duct two (18), evaporimeter (4) pass through pipe connection condenser (11), condenser (11) pass through the pipe connection compressor, condenser (11) set up rear portion in box (13), air duct switching valve (12) have all been installed between working room (15) and air duct two (18) and between air duct two (18) and air duct (17), switching valve two (19) have been installed between working room (15) and air duct (17).
2. The integrated ultra-low temperature high temperature test chamber of claim 1, wherein: the air conditioner is characterized in that an electric cabinet (20) is arranged on the right side of the box body (13), an exhaust valve (9) is arranged in the electric cabinet (20), the exhaust valve (9) is communicated with the interior of the working chamber (15) through a pipeline, a control panel (8) is arranged on the front end face of the electric cabinet (20), and the heater (3), the air inlet valve (5), the circulating motor (1), the evaporator (4), the condenser (11), the compressor, the air duct switching valve (12) and the switching valve II (19) are respectively connected with the control panel (8) through lines.
3. The integrated ultra-low temperature and high temperature test chamber of claim 1 or 2, wherein: the novel vacuum heat insulation glass window is characterized in that windows (7) are arranged on the box door (14) and on the top of the working chamber (15), the windows (7) are vacuum heat insulation glass windows, and an illuminating lamp (10) is arranged above the working chamber (15).
4. The integrated ultra-low temperature and high temperature test chamber of claim 1 or 2, wherein: the circulating motor (1) comprises a long shaft fan motor and a stainless steel multi-wing impeller, the long shaft output end of the circulating motor (1) is connected with a circulating air drum (2), and the circulating air drum (2) is arranged above the inside of the working chamber (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920599742.9U CN209901320U (en) | 2019-04-28 | 2019-04-28 | Integrated ultra-low temperature high-temperature test box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920599742.9U CN209901320U (en) | 2019-04-28 | 2019-04-28 | Integrated ultra-low temperature high-temperature test box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209901320U true CN209901320U (en) | 2020-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920599742.9U Active CN209901320U (en) | 2019-04-28 | 2019-04-28 | Integrated ultra-low temperature high-temperature test box |
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| Country | Link |
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| CN (1) | CN209901320U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735730A (en) * | 2020-08-06 | 2020-10-02 | 宁波科镭汽车零部件有限公司 | Device and method for detecting cold and heat alternating resistance of automobile decoration panel |
| CN115254206A (en) * | 2022-08-15 | 2022-11-01 | 广东宏展仪器有限公司 | Ultrahigh low-temperature circulation test box |
-
2019
- 2019-04-28 CN CN201920599742.9U patent/CN209901320U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735730A (en) * | 2020-08-06 | 2020-10-02 | 宁波科镭汽车零部件有限公司 | Device and method for detecting cold and heat alternating resistance of automobile decoration panel |
| CN111735730B (en) * | 2020-08-06 | 2020-12-08 | 宁波科镭汽车零部件有限公司 | Device and method for detecting cold and heat alternating resistance of automobile decoration panel |
| CN115254206A (en) * | 2022-08-15 | 2022-11-01 | 广东宏展仪器有限公司 | Ultrahigh low-temperature circulation test box |
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