CN207866921U - A kind of strenuous test equipment of electronic product - Google Patents
A kind of strenuous test equipment of electronic product Download PDFInfo
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- CN207866921U CN207866921U CN201721875403.6U CN201721875403U CN207866921U CN 207866921 U CN207866921 U CN 207866921U CN 201721875403 U CN201721875403 U CN 201721875403U CN 207866921 U CN207866921 U CN 207866921U
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Abstract
The utility model discloses a kind of strenuous test equipment of electronic product, including chamber (10) and shake table (30), including heating unit (100), cooling unit (200) and testpieces (20) in the chamber (10), wherein：Heating unit (100) improves the temperature in the chamber 10 for giving out heat to the inner space of the chamber (10)；Cooling unit (200), for reducing the temperature in the chamber (10)；Shake table (30), the environment for providing vibration to the testpieces (20) in the chamber (10).The strenuous test equipment of electronic product disclosed by the utility model, it can provide the combined environment test environment of fast temperature variation and vibration for electronic product, so as to quickly filter out the high product of reliability, reject unqualified electronic product, electronic product reliability is improved, use demand of the user to electronic product is preferably met.
Description
Technical field
The utility model is related to the experimental technique fields of electronic product, more particularly to a kind of strenuous test of electronic product
Equipment.
Background technology
Currently, in aerospace field, it is higher and higher to the reliability requirement of electronic product.And electronic product design and
In manufacturing process, existing defects to varying degrees so that these electronic products the temperature of institute's installation environment change with
And when being acted on by external vibration, poor reliability, the problem of being susceptible to disabler.
But there is presently no a kind of testing equipments, can accurately and reliably provide electronic product in different temperatures ring
Under border and quickly during temperature change simultaneously by the integrated environment of external vibration stress, to which user can filter out reliably
Electronic product rejects underproof electronic product, to ensure normal, safe handling of the electronic product in aerospace field,
Preferably meet use demand of the user to electronic product.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of strenuous test equipment of electronic product, can be machine
Electric product provides the combined environment test environment of fast temperature variation and vibration, so as to quickly filter out the high production of reliability
Product reject underproof electronic product, and to improve the reliability of electronic product, preferably meeting user makes electronic product
With demand, is conducive to popularize, be of great practical significance.
For this purpose, the utility model provides a kind of strenuous test equipment of electronic product, including chamber and shake table, institute
It states including heating unit, cooling unit and testpieces in chamber, wherein：
Heating unit improves the temperature in the chamber for giving out heat to the inner space of the chamber；
Cooling unit, the inner space for absorbing the temperature in the reduction chamber give out heat,；
Shake table, the environment for providing vibration to the testpieces in the chamber；.
Wherein, the resistance heating wire that the heating unit is bending, spirals, the resistance heating wire are arranged in the experiment
At the top of the medial surface of case.
Wherein, further include a heating control apparatus, which includes：Computer heating control switch, computer heating control
Unit and temperature sensor, wherein：
Computer heating control switch is arranged in the connection line of the heating unit and externally fed power supply；
Temperature sensor is arranged in the chamber, for detecting the temperature value inside the chamber in real time, then
Measured value is sent to heat control unit；
Heat control unit is connected respectively with externally fed power supply, computer heating control switch and temperature sensor, for real
When receive temperature value inside the chamber that the temperature sensor is sent, and by the temperature value and preset normal examination
It tests temperature range to be compared, if the temperature value is less than the minimum threshold of the preset normal assays temperature range, send out
It send power adjustment control signal to give externally fed power supply, adjusts the heating power of heating unit, if the temperature value is more than described
When the max-thresholds of preset normal assays temperature range, then sends closing control signal and switched to computer heating control, control heating
Control switch disconnects being conductively connected between the externally fed power supply and the heating unit, until the temperature value is no larger than
When the max-thresholds of the preset normal assays temperature range, retransmits opening control signal and switched to computer heating control, control
Being conductively connected between externally fed power supply and the heating unit described in computer heating control switch conduction.
Wherein, the cooling unit includes at least one liquid nitrogen bottle and multiple nozzles, and the liquid nitrogen bottle passes through hollow pipe
Road is connected with the multiple nozzle；
The strenuous test equipment further includes a cooling controller, which includes electromagnetic switch, cold
But control unit and the temperature sensor, wherein：
Electromagnetic switch is arranged on the connecting line between the liquid nitrogen bottle and the multiple nozzle；
Temperature sensor is arranged in the chamber, for detecting the temperature value inside the chamber in real time, then
It is sent to cooling control unit；
Cooling control unit, is connected with electromagnetic switch and temperature sensor respectively, is passed for temperature described in real-time reception
The temperature value inside the chamber that sensor is sent, and the temperature value and preset normal assays temperature range are compared
Compared with, if the temperature value be more than the preset normal assays temperature range max-thresholds, send opening control signal to
Electromagnetic switch, the connecting line between the liquid nitrogen bottle and the multiple nozzle is conducted by control electromagnetic switch, until the temperature
When angle value is no larger than the max-thresholds of the preset normal assays temperature range, retransmits closing control signal and opened to electromagnetism
It closes, control electromagnetic switch mutually disconnects the connecting line between the liquid nitrogen bottle and the multiple nozzle；.
Wherein, the multiple nozzle is arranged at equal intervals at the medial surface top portion ventilation mouth of the chamber；
The nozzle is atomizer.
Wherein, the shake table is located at immediately below the chamber bottom, and the bottom of the chamber opens that there are one moving-coils
Putting hole, have at the top of the shake table can up-down vibration moving-coil, the moving-coil is embedded into the moving-coil putting hole；
The top of the moving-coil is fixed together by one piece of thermal insulation board and one piece of expansion board, the top of the expansion board
Portion is fixedly connected with the bottom of the testpieces.
Wherein, heat insulation foam is filled in the gap between the top surrounding of the moving-coil and the moving-coil putting hole.
Wherein, the thermal insulation board is the partition board that one piece of surface is covered with heat insulation foam.
Wherein, further include at least one hollow heat conducting pipe of circle, the heat conducting pipe is coiled on the thermal insulation board；
The heat conducting pipe is connected by hollow pipeline with a liquid nitrogen bottle.
Wherein, the shake table is connected by a power amplifier with a vibration control unit；
The vibration control unit, for according to control instruction input by user, sending driving control signal and being put to power
Big device adjusts the power amplifier to the defeated watt level of the shake table；
The power amplifier, for after receiving the driving control signal that the vibration control unit is sent, forming phase
The power output answered is to drive the shake table to run.
By the above technical solution provided by the utility model as it can be seen that compared with prior art, the utility model provides
A kind of strenuous test equipment of electronic product, can provide fast temperature variation for electronic product and the integrated environment of vibration tries
Environment is tested, so as to quickly filter out the high product of reliability, underproof electronic product is rejected, to improve electronic product
Reliability, preferably meet use demand of the user to electronic product, be conducive to popularize, have great production practices
Meaning.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the strenuous test equipment of electronic product provided by the utility model；
Fig. 2 is a kind of block diagram of the strenuous test apparatus embodiments one of electronic product provided by the utility model；
Fig. 3 is a kind of block diagram of the strenuous test apparatus embodiments two of electronic product provided by the utility model；
Fig. 4 is in a kind of strenuous test equipment of electronic product provided by the utility model between chamber and shake table
Connection status structure schematic diagram；
In figure, 10 be chamber, and 20 be testpieces, and 30 be shake table, and 31 be moving-coil putting hole, and 32 be moving-coil, 33 for every
Hot plate, 34 be expansion board, and 35 be heat conducting pipe, and 36 be liquid nitrogen bottle；
100 be heating unit, and 101 be electromagnetic switch, and 102 be heat control unit, and 103 be temperature sensor, and 200 be cold
But unit.
Specific implementation mode
In order to make those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and embodiment
The utility model is described in further detail.
Referring to Fig. 1 to Fig. 4, the utility model provides a kind of strenuous test equipment of electronic product, including is mainly used for
Electronic product is accurately and reliably provided under different temperatures environment and quickly during temperature change simultaneously by external vibration stress
Integrated environment rejects underproof electronic product to allow user that can quickly filter out reliable electronic product, ensures electromechanical
Normal, safe handling of the product in aerospace field.It includes chamber 10, includes heating unit in the chamber 10
100, cooling unit 200 and testpieces 20, wherein：
Heating unit 100 is improved for giving out heat to the inner space of the chamber 10 in the chamber 10
Temperature；
Cooling unit 200, for reducing the temperature in the chamber 10；
Shake table 30 is used to provide vibration to the testpieces 20 (electronic product for being used for experiment) in the chamber 10
Environment.
In the present invention, in specific implementation, the resistance heating wire that the heating unit 100 can be bending, spiral,
The resistance heating wire is preferably arranged at the medial surface top portion ventilation mouth of the chamber 10.
It should be noted that the power of the resistance heating wire can according to the needs of user and the size of chamber,
The needs of the rate of heat addition are arranged accordingly.
Therefore, setting of the utility model based on above-mentioned heating unit 100 and cooling unit 200 can make chamber
Temperature in 10 is neatly adjusted, to when testpieces is placed into chamber 10, detect electronic product and exist
Working performance under different temperatures environment.
In addition, for the testpieces (i.e. pure mechanic structure testpieces) for the operation that need not be powered, when testing crew is by adding
Hot cell 100 and cooling unit 200 by the temperature setting in chamber 10 to a pre-set target temperature when, can directly will examination
Part is tested to be put into chamber 10, if the testpieces do not had defined standard performance parameter (such as appearance be damaged or
Person such as deforms at the failure of apparent shape, structure), then illustrating that the testpieces is not suitable with the temperature environment of current setting.Instead
It illustrates that the testpieces can in the temperature environment of current setting if the testpieces still has defined standard performance parameter
With normal operation.
Therefore, the utility model can accurately and reliably detect the electronic product as testpieces in different temperatures environment
Under working performance,
It should be noted that when object is deformed due to external cause (vibration, humidity, change of temperature field etc.), it is each in object
The internal force of interaction is generated between part, the internal force on unit area is known as stress.The stress spectra is that stress becomes at any time
The curve of change.
In the present invention, for the strenuous test equipment of electronic product provided by the utility model, in order to realize essence
Temperature in true ground Adjustment Tests case so that control is in preset normal assays temperature range, together referring to Fig. 2, this practicality
Novel further includes a heating control apparatus, which includes：Computer heating control switch 101, heat control unit 102
With temperature sensor 103, wherein：
Computer heating control switch 101 is arranged in the connection line of the heating unit 100 and externally fed power supply；
Temperature sensor 103 is arranged in the chamber 10, for detecting the temperature inside the chamber 10 in real time
Value, is then sent to heat control unit 102 by measured value；
Heat control unit 102 is connected with externally fed power supply, computer heating control switch 101 and temperature sensor 103 respectively
It connects, the temperature value inside the chamber 10 sent for temperature sensor described in real-time reception 103, and by the temperature value
It is compared with preset normal assays temperature range, if the temperature value is less than the preset normal assays temperature range
Minimum threshold, then transmission power adjustment control signal and give externally fed power supply (such as can be transformer therein), adjust and add
The heating power of hot cell 100, if the temperature value is more than the max-thresholds of the preset normal assays temperature range,
Closing control signal is sent to computer heating control switch 101, control computer heating control switch 101 disconnects the externally fed power supply and institute
Being conductively connected between heating unit 100 is stated, until the temperature value is no larger than the preset normal assays temperature range
When max-thresholds, opening control signal is retransmited to computer heating control switch 101, control computer heating control switch 101 is connected described outer
Being conductively connected between portion's power supply and the heating unit 100.
Therefore, increase can be corresponded to or reduce the heating output power of (being even switched off) described heating unit 100；If
The temperature value is located in the preset normal assays temperature range, then without processing, that is, keeps the defeated of externally fed power supply
It is constant to go out voltage.
In specific implementation, the heat control unit 102 can carry out the temperature in chamber by pid control algorithm
Control.
It therefore, can be by heat control unit 102, to the heating power of resistance heating wire for the utility model
It is adjusted and (can specifically utilize pid algorithm), to realize that the temperature in chamber 10 is accurately controlled, ensure that temperature becomes
The rate of change reaches the requirement of user preset, can realize that temperature deviation is ± 2 DEG C of control.
In the present invention, in specific implementation, the cooling unit 200 includes at least one liquid nitrogen bottle and multiple sprays
Head, the liquid nitrogen bottle are connected by hollow pipeline with the multiple nozzle；
At this point, referring to Fig. 3, the strenuous test equipment provided by the utility model further includes a cooling controller,
The cooling controller include electromagnetic switch 201, cooling control unit 202 and the temperature sensor 103 (i.e. and computer heating control
Device shares), wherein：
Electromagnetic switch 201 is arranged on the connecting line between the liquid nitrogen bottle and the multiple nozzle；
Temperature sensor 103 is arranged in the chamber 10, for detecting the temperature inside the chamber 10 in real time
Value, is then sent to cooling control unit 202；
Cooling control unit 202, is connected with electromagnetic switch 201 and temperature sensor 103 respectively, is used for real-time reception institute
State the temperature value inside the chamber 10 that temperature sensor 103 is sent, and by the temperature value and preset normal assays
Temperature range is compared, if the temperature value is more than the max-thresholds of the preset normal assays temperature range, is sent
Opening control signal controls electromagnetic switch 201 by the connection between the liquid nitrogen bottle and the multiple nozzle to electromagnetic switch 201
Pipeline is conducted, and when the temperature value is no larger than the max-thresholds of the preset normal assays temperature range, retransmits
Closing control signal controls electromagnetic switch 201 by the connection between the liquid nitrogen bottle and the multiple nozzle to electromagnetic switch 201
Pipeline mutually disconnects.
In specific implementation, the cooling control unit 202 can carry out the temperature in chamber by pid control algorithm
Control.
For the utility model, switch control can be carried out to whether liquid nitrogen bottle exports liquid nitrogen using electromagnetic switch,
Temperature i.e. in measured test case is higher than the max-thresholds (i.e. preset maximum target temperature) of default normal assays temperature range
When, electromagnetic switch is opened, when the temperature value is no larger than the max-thresholds of the preset normal assays temperature range, is closed
Close the electromagnetic switch.
In specific implementation, for the utility model, the liquid nitrogen bottle, and can preferably with the liquid nitrogen bottle of pressure gauge
Liquid nitrogen not less than preset pressure (such as 15 megapascal MPa) size is provided.
In specific implementation, the multiple nozzle is arranged at equal intervals at the top of the medial surface of the chamber 10.
In specific implementation, the nozzle is preferably atomizer.
Therefore, fast cooling can be realized by using liquid nitrogen for the utility model so that average rate of temperature fall energy
Enough reach 10 DEG C/min~45 DEG C/min.
It should be noted that since the pressure suffered by liquid nitrogen is larger, if when liquid nitrogen is sprayed by nozzle being pearl,
When being directly sprayed onto testpieces, it is easy to cause testpieces the damage of Abnormal test, in addition, since liquid nitrogen gasification rate reduces,
Therefore, the utility model is designed using atomizer, can liquid nitrogen be sprayed with mist so that liquid nitrogen can tested
Quick-gasifying in case improves the rate of temperature fall to testpieces to absorb a large amount of heat, realizes fast cooling.
In the present invention, for the strenuous test equipment of electronic product provided by the utility model, in order to can be accurate
Really, electronic product is reliably provided under different temperatures environment and quick temperature becomes in the process the environment of stress vibrated simultaneously,
To allow user that can filter out reliable electronic product, the strenuous test of electronic product provided by the utility model is set
It is standby, together referring to Fig. 4,
The shake table 30 is located at immediately below 10 bottom of the chamber, and the bottom of the chamber 10 opens that there are one moving-coils
Putting hole 31, the top of the shake table 30 have can up-down vibration moving-coil 32, the moving-coil 32 is embedded into the moving-coil and places
In hole 31；
The top of the moving-coil 32 is fixed together by one piece of thermal insulation board 33 and one piece of expansion board 34, the extension
The top of plate 34 is fixedly connected (the specifically fixed form such as being threadedly coupled or be clamped) with the bottom of the testpieces 20；
Heat insulation foam is filled in gap between the top surrounding of the moving-coil 32 and the moving-coil putting hole 31.
In specific implementation, the thermal insulation board is the partition board that one piece of surface is covered with heat insulation foam.Therefore, pass through the thermal insulation board
33, it can make the energy in expansion board 34 and testpieces 20 is as few to be as possible transmitted on the moving-coil 32 of shake table, to protect
The working environment of card shake table is in normal environment state.
It should be noted that for the utility model, it is right using the heat-insulated and sealing performance and flexibility of high temperature insulating cotton
It is attached heat-insulated processing between shake table and chamber, the environment in chamber can either be made to completely cut off with external environment, from
And the temperature in guarantee test case can be maintained at preset target problem, can also ensure that the vibration of shake table is unlikely to transmit
To chamber, avoid damaging chamber.
In addition, during the hot environment and cooling unit 200 that are formed in heating unit 100 form low temperature environment, portion
The heat divided is transmitted to by the junction of moving-coil putting hole 31 in moving-coil and chamber on jigging platform moving coil, at this time, if
Moving-coil temperature it is excessively high, it will the moving-coil service life is had an impact, therefore, the utility model further includes having a set of moving-coil cooling group
Part, for cooling down for moving-coil in temperature-rise period.Therefore, the utility model is as a kind of strenuous test system that can be accurately controlled
System, can fully meet the needs of the reliability test of electronic product.
In the present invention, together referring to Fig. 4, the moving-coil cooling component includes the hollow heat conducting pipe of at least one circle
35, the heat conducting pipe 35 is coiled on the thermal insulation board 33；
The heat conducting pipe 35 is connected by hollow pipeline with a liquid nitrogen bottle 36.Therefore, by the heat conducting pipe 35
In flow through the liquid nitrogen of low temperature, the heat distributed at thermal insulation board 33 can be absorbed so that the thermal insulation board 33 more added with
The heat on heat and testpieces in effect ground partition expansion board is transmitted to 32 direction of moving-coil of shake table, therefore, it is possible to anti-
The temperature of stopper ring is excessively high, extends the service life of moving-coil.
In the present invention, in specific implementation, the maximum thrust of the shake table 30 is 30kN.Locked chamber 10
Inner space can be the regular cube space that volume is 1 cubic metre.
It should be noted that the utility model can apply vibration stress by shake table 30 to testpieces 20, specifically
It can be composed according to preset Random vibration, continue to apply the vibration stress for presetting size to testpieces.
In the present invention, in specific implementation, the shake table 30 is controlled by a power amplifier and a vibration
Unit processed is connected；
The vibration control unit, for according to control instruction input by user, sending driving control signal and being put to power
Big device adjusts the power amplifier to the defeated watt level of the shake table 30；
The power amplifier, for after receiving the driving control signal that the vibration control unit is sent, forming phase
The power output answered is to drive the shake table 30 to run.
It should be noted that for needing the testpieces run that is powered, again to shaking in chamber after testpieces is powered
Dynamic platform 20 is detected above, and the utility model can be electronic product by heating unit and cooling unit and vibration unit
The combined environment test environment for providing fast temperature variation and vibration in specific implementation, when testing crew is by shake table 30, is pressed
It is composed according to preset Random vibration, when continuing to apply the vibration stress for presetting size to testpieces, if the testpieces is herein
Period, do not had defined standard performance parameter (such as be powered after there is serious noise, or can not be powered operation etc. feelings
Condition) or appearance be damaged, then illustrating that the testpieces is not suitable with the vibration stress environment of current setting., whereas if should
Testpieces still has defined standard performance parameter, and appearance is not impaired, illustrates the testpieces shaking in current setting
Dynamic stress environment can be with normal operation.
In addition, for the testpieces (i.e. pure mechanic structure testpieces) for the operation that need not be powered, the utility model is by adding
Hot cell and cooling unit and vibration unit can provide the combined environment test of fast temperature variation and vibration for electronic product
Environment in specific implementation, when testing crew is by shake table 30, is composed according to preset Random vibration, is continued to testpieces
When applying the vibration stress for presetting size, directly testpieces can be put into above the shake table 20 in chamber 10, if should
Testpieces appearance does not have defined standard performance parameter, and (such as appearance such as has been damaged or has deformed apparent shape, the knot
The failure of structure) the case where when, then illustrating that the testpieces is not suitable with the vibration stress environment of current setting., whereas if the examination
It tests part and still has defined standard performance parameter, illustrate that the testpieces can be transported normally in the vibration stress environment of current setting
Row.
Therefore, the utility model can accurately and reliably detect the electronic product as testpieces by exterior vibration
Effect is applied with corresponding working performance when vibration stress according to preset Random vibration spectrum,
In the present invention, in specific implementation, the heat control unit and vibration control unit can be programmable
Controller PLC, central processor CPU, digital signal processor DSP or single-chip microprocessor MCU.
It should be noted that for the strenuous test equipment of electronic product provided by the utility model, in heating unit
100, the one of cooling unit 200 and shake table is worked down, and can provide one has preset temperature variation range (such as -80
DEG C~200 DEG C), preset temperature variation range rate (such as 10 DEG C/min~45 DEG C/min) and controllable comprehensive of vibration stress spectrum
Combined stress environment, accurately and reliably provide electronic product under different temperatures environment and fast temperature change procedure in simultaneously by
To the integrated environment of external vibration stress, the demand of strenuous test is realized.
In conclusion compared with prior art, a kind of strenuous test equipment of electronic product provided by the utility model,
It can provide the combined environment test environment of fast temperature variation and vibration for electronic product, can so as to quickly filter out
The product high by property, rejects underproof electronic product, to improve the reliability of electronic product, preferably meets user to machine
The use demand of electric product is conducive to popularize, be of great practical significance.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of strenuous test equipment of electronic product, which is characterized in that including chamber (10) and shake table (30), the examination
Including heating unit (100), cooling unit (200) and testpieces (20) in tryoff (10), wherein：
Heating unit (100) improves the chamber (10) for giving out heat to the inner space of the chamber (10)
Interior temperature；
Cooling unit (200), for reducing the temperature in the chamber (10)；
Shake table (30), the environment for providing vibration to the testpieces (20) in the chamber (10).
2. the strenuous test equipment of electronic product as described in claim 1, which is characterized in that the heating unit (100) is
The resistance heating wire be bent, spiraled, resistance heating wire's setting is at the top of the medial surface of the chamber (10).
3. the strenuous test equipment of electronic product as described in claim 1, which is characterized in that further include a computer heating control dress
It sets, which includes：Computer heating control switchs (101), heat control unit (102) and temperature sensor (103),
In：
Computer heating control switchs (101) setting in the connection line of the heating unit (100) and externally fed power supply；
Temperature sensor (103), setting is in the chamber (10), the temperature internal for detecting the chamber (10) in real time
Then measured value is sent to heat control unit (102) by angle value；
Heat control unit (102) switchs (101) and temperature sensor (103) phase with externally fed power supply, computer heating control respectively
Connection, for the temperature value for the chamber (10) inside that temperature sensor (103) described in real-time reception is sent, and should
Temperature value is compared with preset normal assays temperature range, if the temperature value is less than the preset normal assays temperature
The minimum threshold in section, then transmission power adjustment control signal and give externally fed power supply, the heating work(of adjustment heating unit (100)
Rate sends closing control signal if the temperature value is more than the max-thresholds of the preset normal assays temperature range
(101) are switched to computer heating control, control computer heating control switch (101) disconnects the externally fed power supply and the heating unit
(100) being conductively connected between, until the temperature value is no larger than the max-thresholds of the preset normal assays temperature range
When, it retransmits opening control signal and switchs (101) to computer heating control, control computer heating control switch (101) the conducting outside supplies
Being conductively connected between power supply and the heating unit (100).
4. the strenuous test equipment of electronic product as claimed in claim 3, which is characterized in that cooling unit (200) packet
At least one liquid nitrogen bottle and multiple nozzles are included, the liquid nitrogen bottle is connected by hollow pipeline with the multiple nozzle；
The strenuous test equipment further includes a cooling controller, which includes electromagnetic switch (201), cold
But control unit (202) and the temperature sensor (103), wherein：
Electromagnetic switch (201) is arranged on the connecting line between the liquid nitrogen bottle and the multiple nozzle；
Temperature sensor (103), setting is in the chamber (10), the temperature internal for detecting the chamber (10) in real time
Angle value is then sent to cooling control unit (202)；
Cooling control unit (202), is connected with electromagnetic switch (201) and temperature sensor (103) respectively, is used for real-time reception
The internal temperature value of the chamber (10) that the temperature sensor (103) is sent, and by the temperature value with it is preset just
Normal test temperature section is compared, if the temperature value is more than the max-thresholds of the preset normal assays temperature range,
It then sends opening control signal and gives electromagnetic switch (201), control electromagnetic switch (201) by the liquid nitrogen bottle and the multiple nozzle
Between connecting line be conducted, until the temperature value is no larger than the max-thresholds of the preset normal assays temperature range
When, retransmit closing control signal and give electromagnetic switch (201), control electromagnetic switch (201) by the liquid nitrogen bottle with it is the multiple
Connecting line between nozzle mutually disconnects.
5. the strenuous test equipment of electronic product as claimed in claim 4, which is characterized in that the multiple nozzle is set at equal intervals
It sets at the medial surface top portion ventilation mouth of the chamber (10)；
The nozzle is atomizer.
6. the strenuous test equipment of electronic product as described in claim 1, which is characterized in that the shake table (30) is located at institute
It states immediately below chamber (10) bottom, the bottom of the chamber (10) opens that there are one moving-coil putting hole (31), the shake tables
(30) top have can up-down vibration moving-coil (32), the moving-coil (32) is embedded into the moving-coil putting hole (31)；
The top of the moving-coil (32) is fixed together by one piece of thermal insulation board (33) and one piece of expansion board (34), the expansion
The top of panel (34) is fixedly connected with the bottom of the testpieces (20).
7. the strenuous test equipment of electronic product as claimed in claim 6, which is characterized in that the top four of the moving-coil (32)
Heat insulation foam is filled in all gaps between the moving-coil putting hole (31).
8. the strenuous test equipment of electronic product as claimed in claim 6, which is characterized in that the thermal insulation board is one piece of surface
It is covered with the partition board of heat insulation foam.
9. the strenuous test equipment of electronic product as claimed in claim 6, which is characterized in that further include that at least one circle is hollow
Heat conducting pipe (35), the heat conducting pipe (35) are coiled on the thermal insulation board (33)；
The heat conducting pipe (35) is connected by hollow pipeline with a liquid nitrogen bottle (36).
10. the strenuous test equipment of the electronic product as described in any one of claim 6 to 9, which is characterized in that the vibration
Platform (30) is connected by a power amplifier with a vibration control unit；
The vibration control unit, for according to control instruction input by user, sending driving control signal to power amplifier,
The power amplifier is adjusted to the defeated watt level of the shake table (30)；
The power amplifier, it is corresponding for after receiving the driving control signal that the vibration control unit is sent, being formed
Power output is to drive the shake table (30) to run.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721875403.6U CN207866921U (en) | 2017-12-28 | 2017-12-28 | A kind of strenuous test equipment of electronic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721875403.6U CN207866921U (en) | 2017-12-28 | 2017-12-28 | A kind of strenuous test equipment of electronic product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207866921U true CN207866921U (en) | 2018-09-14 |
Family
ID=63463254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721875403.6U Active CN207866921U (en) | 2017-12-28 | 2017-12-28 | A kind of strenuous test equipment of electronic product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207866921U (en) |
-
2017
- 2017-12-28 CN CN201721875403.6U patent/CN207866921U/en active Active
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