CN202770931U - Safety environmental test chamber provided with sample wire connection terminals - Google Patents
Safety environmental test chamber provided with sample wire connection terminals Download PDFInfo
- Publication number
- CN202770931U CN202770931U CN 201220446710 CN201220446710U CN202770931U CN 202770931 U CN202770931 U CN 202770931U CN 201220446710 CN201220446710 CN 201220446710 CN 201220446710 U CN201220446710 U CN 201220446710U CN 202770931 U CN202770931 U CN 202770931U
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- sample
- test chamber
- contact
- terminals
- making switch
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- Expired - Fee Related
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Abstract
The utility model relates to an environmental test chamber, and specifically discloses a safety environmental test chamber provided with sample wire connection terminals. The safety environmental test chamber comprises a contact switch K3, a contact switch K2, and a plurality of first wire connection terminals and second wire connection terminals which are arranged on the test chamber. The contact switch K3 is connected with the output power of the test chamber and then is connected with the first wire connection terminals serially connected with a tested sample R1 to form a power supply circuit of the tested sample R1. The contact switch K2 is connected with the second wire connection terminals serially connected with a tested sample R2 and a user power to from a power supply circuit of the tested sample R2. When the test chamber is in normal operation, the contact switch K3 and the contact switch K2 are switched on, the tested sample R1 and the tested sample R2 can be in normal operation condition; and when the test chamber is shut down, the contact switch K3 and the contact switch K2 are switched off, and the power supply circuits of the tested sample R1 and the tested sample R2 are cut off. The power supply of the terminals will be cut off when the test chamber is shut down, so that the samples will not work, and the occurrence of dangers can be avoided.
Description
Technical field
The utility model relates to environmental test chamber, specifically has the safety-type environmental test chamber of sample connection terminal.
Background technology
Environmental test chamber simulating natural environment weather is simulated the destruction that the modern industry product cause, and allows sample test in the environment of simulation, such as pressure, temperature, humidity, the test such as aging.Various tests are provided when carrying out the chamber design for enterprise.The for example impact that brings to equipment of electronic devices and components thermal value in use, can adopt qualitatively calculating heating coefficient to assess, but the heating coefficient in the components and parts handbook is the heating of components and parts self, and be the heating in components and parts cross section, but when the components and parts process encapsulates and is installed on the circuit board, the encapsulation of components and parts and lead-in wire etc. also can increase heat, thereby cause the actual thermal value of components and parts on the circuit board to be higher than calculated value far away.Thereby can utilize environmental test chamber to test.
Often need during the user environment chamber the sample live testing, when band carried (sample energising) test, sample can generate heat, and during the chamber normal operation, heat can be taken away.But when chamber was shut down, the sample thermal value of energising is loose not to be walked to cause the rapid rising of the temperature inside the box and burns out sample and equipment, even can breaking out of fire.
Summary of the invention
The purpose of this utility model provides one group of connection terminal that is subjected to equipment start-stop control, can cut off the terminal power supply after the shutdown, thereby sample is not worked, and avoids occuring above-mentioned danger.
The utility model adopts following technical scheme to achieve these goals: the safety-type environmental test chamber with sample connection terminal, comprise contact-making switch K3, contact-making switch K2, be arranged on several first terminals and the second terminals in the chamber, wherein: described contact-making switch K3 joint test case out-put supply, be connected with the first terminals that are in series with sample R1 again, form the current supply circuit of sample R1; Contact-making switch K2 be in series with sample R2 and be connected the second terminals with user's power supply and be connected, form the current supply circuit of sample R2; When chamber worked, contact-making switch K3 and contact-making switch K2 were closed, and sample R1 and sample R2 can work; When chamber was shut down, contact-making switch K3 and contact-making switch K2 disconnected, and cut off the current supply circuit of sample R1 and sample R2.
Useful technique effect of the present utility model has, and by the terminals that provide in this chamber, when the connection sample is tested, can effectively avoid the possibility of causing danger after the chamber shutdown.
Description of drawings
Fig. 1 is the wiring diagram of the utility model connection terminal;
Among the figure: 1-the first terminals; 2-the second terminals; The K1-switch; K2～K3 represents contact-making switch; R1～R2 represents sample.
Embodiment
Be described further below in conjunction with accompanying drawing.
Referring to Fig. 1, safety-type environmental test chamber with sample connection terminal, comprise contact-making switch K3, contact-making switch K2, be arranged on the first terminals 1 and the second terminals 2 in the chamber, wherein: described contact-making switch K3 joint test case out-put supply, be connected with the first terminals 1 that are in series with sample R1 again, form the current supply circuit of sample R1; Contact-making switch K2 be in series with sample R2 and be connected the second terminals 2 with user's power supply and be connected, form the current supply circuit of sample R2; When chamber worked, contact-making switch K3 and contact-making switch K2 were closed, and sample R1 and sample R2 can work; When chamber was shut down, contact-making switch K3 and contact-making switch K2 disconnected, and cut off the current supply circuit of sample R1 and sample R2.Also being in series with K switch 1(between described the second terminals 2 and user's power supply can be various commercially available regular taps).
A plurality of the first terminals 1 and the second terminals 2 can be set, for user selection on environmental test chamber.When sample accessed the first terminals, the power supply of sample was provided by the power output end of environmental test chamber internal control circuit; If the power supply that environmental test chamber provides can not satisfy the demand of sample, user's power supply that sample can externally meet the demands by the second terminals JA(junction ambient) experimental box, is tested.
The terminals of sample access environment experimental box, the contact-making switch that is connected with terminals (for the commercially available prod) makes contact-making switch closed in the situation of environmental test chamber energising, the sample normal operation is tested, and the environmental experiment case is taken away the heat that sample produces simultaneously.When shutting down outage such as environmental test chamber, contact-making switch disconnects, and sample is not worked, thereby can not produce heat again, avoids burning out environmental test chamber, breaking out of fire.
Claims (2)
1. the safety-type environmental test chamber that has the sample connection terminal, comprise contact-making switch K3, contact-making switch K2, be arranged on several first terminals (1) and the second terminals (2) in the chamber, it is characterized in that: described contact-making switch K3 joint test case out-put supply, be connected with the first terminals (1) that are in series with sample R1 again, form the current supply circuit of sample R1; Contact-making switch K2 be in series with sample R2 and be connected the second terminals (2) with user's power supply and be connected, form the current supply circuit of sample R2; When chamber worked, contact-making switch K3 and contact-making switch K2 were closed, and sample R1 and sample R2 can work; When chamber was shut down, contact-making switch K3 and contact-making switch K2 disconnected, and cut off the current supply circuit of sample R1 and sample R2.
2. described safety-type environmental test chamber with sample connection terminal according to claim 1 is characterized in that: also be in series with K switch 1 between described the second terminals (2) and user's power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220446710 CN202770931U (en) | 2012-09-04 | 2012-09-04 | Safety environmental test chamber provided with sample wire connection terminals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220446710 CN202770931U (en) | 2012-09-04 | 2012-09-04 | Safety environmental test chamber provided with sample wire connection terminals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202770931U true CN202770931U (en) | 2013-03-06 |
Family
ID=47777495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220446710 Expired - Fee Related CN202770931U (en) | 2012-09-04 | 2012-09-04 | Safety environmental test chamber provided with sample wire connection terminals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202770931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272507A (en) * | 2017-07-27 | 2017-10-20 | 郑州云海信息技术有限公司 | A kind of device and method of thermo-humidistat cabinet and server power supply coordinated signals |
-
2012
- 2012-09-04 CN CN 201220446710 patent/CN202770931U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272507A (en) * | 2017-07-27 | 2017-10-20 | 郑州云海信息技术有限公司 | A kind of device and method of thermo-humidistat cabinet and server power supply coordinated signals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20150904 |
|
| EXPY | Termination of patent right or utility model |