CN204352884U - A kind of large-scale moisture-heat test-box with High Power Active heat load - Google Patents
A kind of large-scale moisture-heat test-box with High Power Active heat load Download PDFInfo
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- CN204352884U CN204352884U CN201420766097.2U CN201420766097U CN204352884U CN 204352884 U CN204352884 U CN 204352884U CN 201420766097 U CN201420766097 U CN 201420766097U CN 204352884 U CN204352884 U CN 204352884U
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Abstract
The utility model relates to a kind of large-scale moisture-heat test-box with High Power Active heat load, to simulate hot and humid environment and low temperature environment, for the Stability and dependability that detected electrons product runs in such circumstances, belongs to electron product checking device technical field.It comprises be arranged on chamber inside hot blast collecting board, hot blast collection channel, air channel, the second air-valve, wind circulation canal and the first air-valve inside and outside being arranged in chamber inner top connection test case.Large-scale moisture-heat test-box provided by the utility model significantly improves environmental test chamber's operation stability, improves result of the test accuracy, avoids sample to damage because thermal accumlation temperature is too high.
Description
Technical field
The utility model relates to a kind of equipment of simulating hot and humid environment and low temperature environment, for the Stability and dependability that detected electrons product runs in such circumstances, belongs to electron product checking device technical field.
Background technology
At present, even heat initiatively can not be spread to the whole space of environmental cabinet by the existing environmental test chamber of heat of discharging for the larger sample of heating power, and sample heating place thermal accumlation causes sample local temperature to raise and uncontrollable.Not only affect result of the test accuracy but also the too high damage sample of sample local temperature may be caused.
Utility model content
For solving the deficiencies in the prior art, the utility model provides a kind of large-scale moisture-heat test-box with High Power Active heat load.
With a large-scale moisture-heat test-box for High Power Active heat load, comprise be arranged on chamber inside hot blast collecting board, hot blast collection channel, centrifugal blower, air channel, the second air-valve, wind circulation canal and the first air-valve inside and outside being arranged in chamber inner top connection test case.
Described hot blast collection channel is laid along chamber top board, and the lower surface of described hot blast collection channel is provided with described hot blast collecting board.
Described wind circulation canal is vertically arranged along the sidewall of chamber, the upper end of described wind circulation canal is inner by the chamber of wind circulation canal outlet, the lower end of described wind circulation canal is inner by wind circulation canal entrance connection test case, described air channel is had in described wind circulation canal arranged outside, the one end in described air channel is communicated with described hot blast collection channel, and the other end in described air channel is communicated with described wind circulation canal.
In described air channel, one end of described air channel and described wind circulation canal connectivity part is provided with described second air-valve, described first air-valve is positioned at the connectivity part in described hot blast collection channel and described air channel.
In described hot blast collection channel, be provided with described centrifugal blower, described centrifugal blower is near the connectivity part in described hot blast collection channel and described air channel.
Preferably, when described first air-valve is in open mode, described second air-valve is in closed condition; When described first air-valve is in closed condition, described second air-valve is in open mode.
Because two air-valves are series connection, one of them communicates with the chamber external world, and another communicates with chamber wind circulation canal.The air-valve communicated with the chamber external world when laboratory's air circulating system quits work is opened, and the air-valve communicated with chamber wind circulation canal cuts out, and the heat of sample is directly discharged to outside chamber avoids sample thermal accumlation to damage sample; When laboratory's air circulating system normally works, the air-valve communicated with chamber wind circulation canal is opened, and the air-valve communicated with the chamber external world cuts out, and the heat of sample is participated in directly and tested room temperature adjustment; Wherein hot blast collecting board has the effect preventing chamber top board condensation when doing low-temperature test, can avoid like this sample causing sample short circuit because condensation water drops onto and damaging sample.
Large-scale moisture-heat test-box provided by the utility model significantly improves environmental test chamber's operation stability, improves result of the test accuracy, avoids sample to damage because thermal accumlation temperature is too high.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the large-scale moisture-heat test-box of band High Power Active provided by the utility model heat load.
Accompanying drawing 1, the list of parts representated by each label is as follows:
1, hot blast collecting board, 12, hot blast collection channel, 2, centrifugal blower, the 3, first air-valve, 4, air channel, the 5, second air-valve, 6, wind circulation canal, 61, the outlet of wind circulation canal, 62, wind circulation canal entrance.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, illustrated embodiment, only for explaining the utility model, is not intended to limit scope of the present utility model.
In a detailed description of the invention, as shown in Figure 1, with a large-scale moisture-heat test-box for High Power Active heat load, comprise the hot blast collecting board 1, hot blast collection channel 12, centrifugal blower 2, air channel 4, second air-valve 5, wind circulation canal 6 and the first air-valve 3 inside and outside being arranged in chamber inner top connection test case that are arranged on chamber inside.
Described hot blast collection channel 12 is laid along chamber top board, and the lower surface of described hot blast collection channel 12 is provided with described hot blast collecting board 1.
Described wind circulation canal 6 is vertically arranged along the sidewall of chamber, the upper end of described wind circulation canal 6 exports 61 connection test casees inside by wind circulation canal, the lower end of described wind circulation canal 6 is inner by wind circulation canal entrance 62 connection test case, described air channel 4 is had in described wind circulation canal 6 arranged outside, the one end in described air channel 4 is communicated with described hot blast collection channel 12, and the other end in described air channel 4 is communicated with described wind circulation canal 6.
In described air channel 4, near described air channel 4, one end of described wind circulation canal 6 connectivity part is provided with described second air-valve 5, described first air-valve 3 is positioned at the connectivity part in described hot blast collection channel 12 and described air channel 4.
In described hot blast collection channel 12, be provided with described centrifugal blower 2, described centrifugal blower 2 is near the connectivity part of described hot blast collection channel 12 with described air channel 4.
Further, when described first air-valve 3 is in open mode, described second air-valve 5 is in closed condition; When described first air-valve 3 is in closed condition, described second air-valve 5 is in open mode.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. the large-scale moisture-heat test-box with High Power Active heat load, is characterized in that: comprise be arranged on chamber inside hot blast collecting board (1), hot blast collection channel (12), air channel (4), the second air-valve (5), wind circulation canal (6) and the first air-valve (3) inside and outside being arranged in chamber inner top connection test case;
Described hot blast collection channel (12) is laid along chamber top board, and the lower surface of described hot blast collection channel (12) is provided with described hot blast collecting board (1);
Described wind circulation canal (6) is vertically arranged along the sidewall of chamber, the upper end of described wind circulation canal (6) is inner by wind circulation canal outlet (61) connection test case, the lower end of described wind circulation canal (6) is inner by wind circulation canal entrance (62) connection test case, described air channel (4) is had in described wind circulation canal (6) arranged outside, the one end in described air channel (4) is communicated with described hot blast collection channel (12), and the other end of described air channel (4) is communicated with described wind circulation canal (6);
In described air channel (4), described air channel (4) and one end of described wind circulation canal (6) connectivity part are provided with described second air-valve (5), described first air-valve (3) is positioned at the connectivity part in described hot blast collection channel (12) and described air channel (4).
2. the large-scale moisture-heat test-box of band High Power Active according to claim 1 heat load, is characterized in that: when described first air-valve (3) is in open mode, described second air-valve (5) is in closed condition; When described first air-valve (3) is in closed condition, described second air-valve (5) is in open mode.
3. the large-scale moisture-heat test-box of band High Power Active according to claim 1 and 2 heat load, it is characterized in that: in described hot blast collection channel (12), be provided with centrifugal blower (2), described centrifugal blower (2) is near the connectivity part of described hot blast collection channel (12) with described air channel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420766097.2U CN204352884U (en) | 2014-12-08 | 2014-12-08 | A kind of large-scale moisture-heat test-box with High Power Active heat load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420766097.2U CN204352884U (en) | 2014-12-08 | 2014-12-08 | A kind of large-scale moisture-heat test-box with High Power Active heat load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204352884U true CN204352884U (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420766097.2U Active CN204352884U (en) | 2014-12-08 | 2014-12-08 | A kind of large-scale moisture-heat test-box with High Power Active heat load |
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| CN (1) | CN204352884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114578277A (en) * | 2022-03-14 | 2022-06-03 | 广州五所环境仪器有限公司 | Thermal load calibration method for high-low temperature environment test chamber |
-
2014
- 2014-12-08 CN CN201420766097.2U patent/CN204352884U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114578277A (en) * | 2022-03-14 | 2022-06-03 | 广州五所环境仪器有限公司 | Thermal load calibration method for high-low temperature environment test chamber |
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