A rapid temperature change test chamber

A technology of temperature change and test chamber, which is applied in the direction of electrical program control, sequence/logic controller program control, etc., can solve the problems of product condensation, high humidity, and influence on test results, etc., to strengthen the sealing of the box, The effect of improving accuracy

Active Publication Date: 2018-07-31
NO 722 RES INST OF CHINA SHIPBUILDING IND
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of high humidity in the box in the prior art, which causes condensation on the product and affects the test results, the embodiment of the present invention provides a rapid temperature change test box

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A rapid temperature change test chamber
  • A rapid temperature change test chamber
  • A rapid temperature change test chamber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] Embodiments of the present invention provide a rapid temperature change test chamber, see figure 1 , the rapid temperature change test box includes a box body 1, and the box body 1 includes a box body 11 and a partition layer (not shown) that separates the box body 11 into three sections, and the three sections are successively working chambers. 2. Refrigeration room 3 and power distribution room 4.

[0034] Wherein, on the box body 11 forming the working chamber 2 , a box door 12 is provided on the side opposite to the isolation layer forming the working chamber 2 .

[0035] see figure 2 , the studio 2 is provided with an axial flow fan 21, a heater 22, a cooling evaporator 23, and a humidifying water basin (not shown in the figure), and the heater 22, the cooling evaporator 23, and the humidifying water basin are all provided with a working The pipeline connecting indoor and outdoor. Preferably, the axial flow fan 21, the heater 22, and the refrigeration evaporato...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a rapid temperature change test box, and belongs to the field of environmental stress screening test equipment. The rapid temperature change test box comprises a box which comprises a box body and separating layers which separate the internal part of the box body into three intervals. The three intervals are a work room, a refrigerating room and a power distribution room in turn. The work room is internally provided with an axial flow blower. The power distribution room is internally provided with a motor driving the axial flow blower. Magnetic transmission is adopted between the motor and the axial flow blower. Magnetic transmission is adopted between the motor and the axial flow blower, and a through hole does not need to be arranged on the box between the motor and the axial flow blower for arrangement of a transmission shaft so that a box sealing performance problem caused by existence of the through hole can be avoided, and box sealing performance can be enhanced. With increasing of sealing performance, moist air exchange inside and outside the test box is reduced, and humidity in the box is relatively low in the test process so that influence on the test result caused by condensation on the product can be avoided and accuracy of the test result can be enhanced.

Description

technical field [0001] The invention relates to the field of environmental stress screening test equipment, in particular to a rapid temperature change test chamber. Background technique [0002] Environmental Stress Screening (ESS for short) is a series of tests conducted under environmental stress in order to find and eliminate defective parts, components, and process defects in products and prevent early failure. Among them, environmental stress is selected according to the effect of product screening. For electronic products, environmental stress mainly chooses temperature cycle and random vibration, which are realized by corresponding test chambers. For example, rapid temperature change in temperature cycle (such as temperature range is -55°C ~ +70°C, temperature change rate is ≥ 5°C) is achieved by using a rapid temperature change test chamber. [0003] The military standard of the environmental stress screening method for electronic products requires the control of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/05
CPCG05B19/05
Inventor 李建刚万先锋程照明江传华王定虎江思杰
Owner NO 722 RES INST OF CHINA SHIPBUILDING IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap