A kind of ageing rack for providing Heng Yuan for secondary power supply aging test
Technical field
The invention belongs to power supply ageing device fields, more particularly to a kind of for providing Heng Yuan for secondary power supply aging test
Ageing rack.
Background technology
With the development of society, Information technology is maked rapid progress, various equipment and its parts have obtained rapid development, so
And these zero devices and its used power supply majority, there are mass defect and latent defect, mass defect can be by general
Test and quality control method are it can be found that and there are zero devices of latent defect only as place equipment uses for a long time
Afterwards, can be exposed, this certainly will be to equipment with causing considerable damage.So improving zero device or used power supply
Quality, as early as possible expose its latent defect be the big problem for needing to solve at present.Aging test is that one kind allows product in stress
Lower work is for a period of time to stablize the ageing rack of its characteristic.It is by simulating the test wrapper under a kind of high temperature, high mal-condition
Border carries out High performance electronics to burn machine for a long time, to improve the production technology stream of Product Safety, stability and reliability
Journey.But it when each power supply carries out aging test, needs to provide stable power supply and power source loads for aging test, can protect
Zero device for card aging test is not damaged, and in order to solve the above-mentioned technical problem, prior art discloses some for monitoring
The parameters such as the voltage of the aging test of each power supply, when the abnormal alarm of appearance, such as CN103365289 disclose one kind wirelessly
Distributed generation resource burn-in test monitors ageing rack and system, which uses Distributed Design and wireless communication mode, in this way should
Design is easily installed and safeguards, and with cost-effective and other effects, but still there is work as the prior art disclosed above
Entire ageing process is controlled when the electric current of output is more than preset threshold value by way of adding power-off, although the control mode has
There is certain effect, but when aging test has carried out half, when occurring the case where output current or spread of voltage suddenly,
After Switching power, entire ageing process is required for re-starting, wasting manpower and material resources, and without fundamentally solving to be ageing
Experiment provides the technical issues of stabilized power source.
Invention content
It can be tried for the secondary power supply ageing in aging test in order to solve the above technical problem, the present invention provides a kind of
Test the ageing rack that Heng Yuan is provided.
Specific technical solution of the present invention is as follows:
The present invention provides a kind of ageing rack for providing Heng Yuan for secondary power supply aging test, which includes machine
Case, the liquid crystal display being set on the front panel of cabinet and at least three loading interfaces, and the control assembly in cabinet, control
Component processed includes controller and the liquid crystal control plate, collector, solid-state relay, memory and the alarm that are connected with controller,
And the load resistance being connected with solid-state relay, load resistance are connected by loading interfaces with secondary power supply;Controller includes pre-
If module, data reception module, the first comparison module and control module, collector is used to acquire the current value of ageing rack output;
Presetting module is used for setting electric current threshold range [A1, A2], and data reception module is used for the electric current of real-time reception collector acquisition
Value A, and it is sent respectively to liquid crystal control plate, memory and the first comparison module;The electric current that first comparison module is used to receive
Value A is compared with current threshold range [A1, A2], and as A > A2, control module sends peak load electricity to solid-state relay
The resistance value instruction of resistance output, while alarm command is sent out to alarm, as A < A1, control module is sent out to solid-state relay
Sending reduces the resistance value instruction of load resistance output, and alarm is loaded for sending out alarm signal, solid-state relay for controlling
The resistance value of resistance output.
Further to improve, control assembly further includes the pressure regulation potentiometer being connected with controller, and pressure regulation potentiometer is for adjusting
The voltage value of ageing rack output is saved, controller further includes being connected to the control module voltage inclined setup module and voltage is drawn to draw control partially
Molding block, voltage draw the interface of voltage value of the inclined setup module for providing adjustment ageing rack output for operating personnel, same to time control
Adjust instruction is sent to voltage and draws inclined control module by molding block, and voltage draws inclined control module to be used for according to adjust instruction to pressure regulation
Potentiometer sends the instruction for the voltage value that ageing rack output is raised and lowered.
It is further to improve, controller further include secondary power supply output current receiving module, current standard deviation computing module,
Second comparison module, electric current relative standard deviation computing module, the first judgment module and third comparison module, presetting module are also used
In setting electric current standard deviation threshold method range [S1, S2] and electric current relative standard deviation threshold value R1, secondary power supply output current receives
Module is used for the current value of real-time reception secondary power supply output, and is sent to current standard deviation computing module, current standard deviation meter
It calculates module and is used to calculate the current standard deviation S of each current value, and be sent to the second comparison module, the second comparison module will be for that will connect
The current standard deviation S of receipts is compared with current standard deviation threshold range [S1, S2], when S is not in [S1, S2] range, to
First judgment module sends decision instruction, and the first judgment module is for judging that voltage draws inclined control module whether to pressure regulation potentiometer
The instruction for sending the voltage value that ageing rack output is raised and lowered sends out alarm command, such as if not sending out instruction to alarm
Fruit sends out instruction, and the instruction of calculating current relative standard deviation is sent out to electric current relative standard deviation computing module, and electric current is opposite
Standard deviation calculation module is used for calculating current relative standard deviation RSD, and sends compare instruction, third to third comparison module
Comparison module is for relative standard deviation RSD to be compared with electric current relative standard deviation threshold value R1, as RSD > R1, to
Alarm sends out alarm command.
It is further to improve, cooling system is additionally provided in cabinet, cooling system includes being made of at least three layers heat dissipation support plate
Heat-dissipating frame and be placed in heat dissipation support plate on radiator fan.
Further to improve, the rear panel of cabinet is equipped with thermal vias, and radiating sieves are covered on thermal vias.
Further to improve, cooling system further includes the cooling assembly being located on load resistance, and cooling assembly includes outer
Shell, shell are equipped with heat emission hole, and the madial wall of shell is arranged in parallel with two rows of cooling fins, semiconductor refrigerating is equipped between cooling fin
Piece, semiconductor chilling plate are set on load resistance.
It is further to improve, be equipped with through-hole on two rows of cooling fins, through-hole arranges in the shape of a spiral, be per dissipation backing by
Wavelike structure made of multiple heat-dissipating fins fold often is arranged wavelike structure and is distributed in alternating expression, wherein the wavy knot of a row
In structure, the angle that formation is folded between each heat-dissipating fin is 60 °, in another row's wavelike structure, between each heat-dissipating fin
It is 45 ° to fold the angle formed.
Further to improve, control assembly further includes the cooling system control circuit being connected with controller, cooling system control
Circuit processed includes the switching switch being connected with controller and switchs the fan control circuitry being connected and refrigeration control circuit with switching,
Fan control circuitry is connected with radiator fan, and refrigeration control circuit is connected with semiconductor chilling plate, and switching switch is used for fan control
Switching between circuit and refrigeration control circuit processed.
Further to improve, control assembly further includes the temperature sensor being connected with controller, and temperature sensor is for adopting
Collect the temperature of load resistance, and issue controller, presetting module is additionally operable to set temperature threshold range [T1, T2], and controller is also
Including temperature reception module and the 4th comparison module, temperature reception module is used to receive the load resistance of temperature sensor acquisition
Temperature T, and it is sent to the 4th comparison module, the 4th comparison module is additionally operable to the temperature T that will be received and temperature threshold range
[T1, T2] is compared, and as T1 < T < T2, control module switchs the instruction for sending connection fan control circuitry to switching, when
When T > T2, control module switchs the instruction for sending connection refrigeration control circuit to switching.
Further to improve, the front panel of cabinet is additionally provided with total power switch, output interface, is connected with liquid crystal control plate
The rear panel of keyboard and the indicator light being connected with alarm, cabinet is additionally provided with the socket with protection.
Further to improve, control assembly further includes the constant-current control circuit being connected with controller, constant-current control circuit packet
It includes operational amplifier, power resistor, current value limit control module and inhibits capacitance;Operational amplifier respectively with output interface, control
Device limits control module with current value and is connected, and after power resistor is in parallel with capacitance is inhibited, is connected with operational amplifier.
The beneficial effects of the invention are as follows:
Offer provided by the invention for for secondary power supply aging test provide Heng Yuan ageing rack secondary power supply it is special
With aging, function provides+27V power supplys and power source loads for test secondary power supply, and monitors the electricity per road+27V
Pressure and electric current;Ageing rack can at least meet drag three aging test.
Description of the drawings
Fig. 1 is the structural schematic diagram of the front panel of 1 cabinet of embodiment;
Fig. 2 is the structural schematic diagram of the rear panel of 1 cabinet of embodiment;
Fig. 3 is the work flow diagram of 1 control assembly of embodiment;
Fig. 4 is each module connection diagram of 1 controller of embodiment;
Fig. 5 is each module connection diagram of 2 controller of embodiment;
Fig. 6 is each module connection diagram of 3 controller of embodiment;
Fig. 7 is the structural schematic diagram of 4 cooling system of embodiment;
Fig. 8 is the structural schematic diagram of 5 cooling assembly of embodiment;
Fig. 9 is that 5 cooling assembly of embodiment is free of chlamydate structural schematic diagram;
Figure 10 is the work flow diagram of 5 control assembly of embodiment;
Figure 11 is the work flow diagram of 6 control assembly of embodiment;
Figure 12 is the work flow diagram of 6 controller of embodiment;
Figure 13 is the fundamental diagram of 7 constant-current control circuit of embodiment;
Figure 14 is the work flow diagram of 8 ageing component of embodiment.
Specific implementation mode
Embodiment 1
A kind of ageing rack for providing Heng Yuan for secondary power supply aging test, as shown in Figure 1, the ageing rack includes machine
Case, 2,5 loading interfaces 3 of liquid crystal display being set on the front panel 1 of cabinet, output interface 17, power up total power switch 16
It switchs, indicator light of adding some points, the keyboard 18 being connected with liquid crystal control plate 5 and the indicator light 19 being connected with alarm 9, as shown in Fig. 2,
The rear panel 22 of cabinet is equipped with socket 20, thermal vias 124 and the radiating sieves 125 being covered on thermal vias 124 with protection,
And the control assembly in cabinet, as shown in figure 3, control assembly includes controller 4 and the liquid crystal control being connected with controller 4
Plate 5, collector 6, solid-state relay 7, memory 8 and alarm 9, and the load resistance 10 that is connected with solid-state relay 7, load
Resistance 10 is connected by loading interfaces 3 with secondary power supply;As shown in figure 4, controller 4 includes presetting module 40, data reception
Block 41, the first comparison module 42 and control module 43, collector 6 are used to acquire the current value of ageing rack output;Presetting module 40
For setting electric current threshold range [A1, A2], data reception module 41 is used for the current value A that real-time reception collector 6 acquires, and
It is sent respectively to liquid crystal control plate 5, memory 8 and the first comparison module 42;The electric current that first comparison module 42 is used to receive
Value A is compared with current threshold range [A1, A2], and as A > A2, control module 43 sends to increase to solid-state relay 7 and bear
The resistance value instruction that resistance 10 exports is carried, while sending out alarm command to alarm 9, as A < A1, control module 43 is to solid-state
Relay 7, which is sent, reduces the resistance value instruction that load resistance 10 exports, and alarm 9 is for sending out alarm signal, solid-state relay 7
Resistance value for controlling the output of load resistance 10.
Ageing rack provided by the invention can provide stable power supply and power source loads for the aging test of secondary power supply, this
Invention in specific implementation, adds solid-state relay and load resistance, and the current value of moment monitoring ageing rack output, when
When current value is not in threshold range, alarm signal is not only sent out, while adjusting electricity is sent out to solid-state relay by controller
The instruction of resistance value, so that the resistance value for making solid-state relay be exported in time to load resistance controls so that the power supply of offer
It tends towards stability, the generation for the accidents such as avoid secondary power supply impaired.
Embodiment 2
A kind of ageing rack for providing Heng Yuan for secondary power supply aging test, the ageing rack and the difference of embodiment 1 exist
In as shown in figure 5, control assembly further includes the pressure regulation potentiometer 11 being connected with controller 4, pressure regulation potentiometer 11 is old for adjusting
The voltage value of platform output is refined, controller 4 further includes that the voltage being connected with control module 43 draws inclined setup module 44 and voltage to draw partially
Control module 45, voltage draw the interface of voltage value of the inclined setup module 44 for providing adjustment ageing rack output for operating personnel,
Adjust instruction is sent to voltage and draws inclined control module 45 by control module 43 simultaneously, and the inclined control module 45 of voltage drawing is for according to tune
It is whole to instruct the instruction for being sent to pressure regulation potentiometer 11 and the voltage value that ageing rack exports being raised and lowered.
The present invention further improves and adds pressure regulation potentiometer in ageing rack, pressure regulation potentiometer can pull up partially or under
Bias-voltage value is drawn, the purpose of addition is the voltage change range that can be born in order to investigate secondary power supply in aging test, from
And be design ageing rack output voltage do foundation.
Embodiment 3
It is a kind of for providing the ageing rack of Heng Yuan for secondary power supply aging test, the ageing rack as different from Example 2,
As shown in fig. 6, controller 4 further includes secondary power supply output current receiving module 47, the ratio of current standard deviation computing module 48, second
Compared with module 49, electric current relative standard deviation computing module 410, the first judgment module 411 and third comparison module 412, mould is preset
Block 40 is additionally operable to setting electric current standard deviation threshold method range [S1, S2] and electric current relative standard deviation threshold value R1, secondary power supply output
Current receiv module 47 is used for the current value of real-time reception secondary power supply output, and is sent to current standard deviation computing module 48,
Current standard deviation computing module 48 is used to calculate the current standard deviation S of each current value, and is sent to the second comparison module 49, and second
Comparison module 49 is used to the current standard deviation S received being compared with current standard deviation threshold range [S1, S2], when S does not exist
When in [S1, S2] range, decision instruction is sent to the first judgment module 411, the first judgment module 411 is for judging that it is inclined that voltage is drawn
Whether control module 45 sends the instruction that the voltage value that ageing rack exports is raised and lowered to pressure regulation potentiometer 11, if do not sent out
Instruction, sends out alarm command to alarm, if sending out instruction, calculating is sent out to electric current relative standard deviation computing module 410
The instruction of electric current relative standard deviation, electric current relative standard deviation computing module 410 are used for calculating current relative standard deviation
RSD, and compare instruction is sent to third comparison module 412, third comparison module 412 is used for relative standard deviation RSD and electricity
Stream relative standard deviation threshold value R1 is compared, and as RSD > R1, alarm command is sent out to alarm.
In the further improvement project of the present invention, further controller is defined, purpose detection ageing rack is
After secondary power supply aging test provides power supply, whether the output current of secondary power supply is constant, and the present invention is by calculating secondary power supply
The standard deviation of each current value of output judges whether output current constant so that it is more accurate to judge, and by standard deviation with
Current standard deviation threshold range is compared, when the standard deviation is not in current standard deviation threshold range, it is also necessary to be done to it
It is further to judge, judge whether ageing rack has been raised and lowered voltage value, if voltage value is not raised and lowered, illustrates old
Refining platform does not do bias test, then showing that the power supply that ageing rack provides is unstable, sends out alarm at this time, trouble-shooting, if
Ageing rack is doing bias test, that is, ageing rack changes the voltage value of output, then controller also needs to further calculate opposite mark
Quasi- deviation, and be compared, if relative standard deviation is more than relative standard deviation threshold value, illustrate the power supply meeting that ageing rack provides
Make aging test short circuit or open circuit, therefore sends out alarm signal.The circulatory system can be more accurately secondary power supply ageing in this way
Experiment determines the voltage value of power supply output.
Embodiment 4
It is a kind of for providing the ageing rack of Heng Yuan for secondary power supply aging test, the ageing rack as different from Example 1,
As shown in fig. 7, being additionally provided with cooling system 12 in cabinet, cooling system 12 includes being dissipated by what at least three layers heat dissipation support plate 121 formed
Hot frame 122 and the radiator fan 123 being placed on heat dissipation support plate 121.
The present invention can improve the heat sinking function of ageing rack by adding cooling system in systems, place each zero device
Damage.
Embodiment 5
It is a kind of for providing the ageing rack of Heng Yuan for secondary power supply aging test, the ageing rack as different from Example 4,
Cooling system 12 further includes the cooling assembly 13 being located on load resistance 10, and as shown in Figure 8 and Figure 9, cooling assembly 13 includes
Shell 131, shell 131 are equipped with heat emission hole 132, and the madial wall of shell 131 is arranged in parallel with two rows of cooling fins 134, cooling fin
Semiconductor chilling plate 135 is equipped between 134, semiconductor chilling plate 135 is set on load resistance 10, on two rows of cooling fins 134
It is equipped with through-hole 1341, is wavelike structure made of being folded by multiple heat-dissipating fins 1342 per dissipation backing 134, often arranges wave
Wave-like structure is distributed in alternating expression, wherein in row's wavelike structure, the angle that formation is folded between each heat-dissipating fin is
60 °, in another row's wavelike structure, the angle that formation is folded between each heat-dissipating fin is 45 °.
Since the entire function of power supply depends on resistance, resistance can release a large amount of heat at work, in order to put
The damage due to high fever is set, the present invention is further provided with cooling assembly in load resistance, which can significantly reduce negative
The heat for carrying resistance, improves the service life of load resistance, compared with prior art, can improve the service life of load resistance
2.5 times, and 35%-40% can be improved in the heat dissipation effect of the cooling assembly compared with prior art.
As shown in Figure 10, control assembly further includes the cooling system control circuit 14 being connected with controller 4, cooling system control
Circuit 14 processed include the switching switch 141 being connected with controller 4 and with the fan control circuitry 142 that is connected of switching switch 141 and
Refrigeration control circuit 143, fan control circuitry 142 are connected with radiator fan 123, refrigeration control circuit 143 and semiconductor refrigerating
Piece 135 is connected, and switching switch 141 is for the switching between fan control circuitry 142 and refrigeration control circuit 143.
The present invention further provides cooling system control circuit for cooling system, to control the fortune of entire cooling system
Row.
Embodiment 6
It is a kind of for providing the ageing rack of Heng Yuan for secondary power supply aging test, the ageing rack as different from Example 5,
As shown in figure 11, control assembly further includes the temperature sensor 15 being connected with controller 4, and temperature sensor 15 is loaded for acquiring
The temperature of resistance 10, and controller 4 is issued, presetting module 40 is additionally operable to set temperature threshold range [T1, T2], such as Figure 12 institutes
Show, controller 4 further includes temperature reception module 413 and the 4th comparison module 414, and temperature reception module 413 is for receiving temperature
The temperature T for the load resistance 10 that sensor 15 acquires, and it is sent to the 4th comparison module 414, the 4th comparison module 414 is additionally operable to
The temperature T received is compared with temperature threshold range [T1, T2], as T1 < T < T2, control module 43 is opened to switching
141 instructions for sending connection fan control circuitry 142 are closed, as T > T2, control module 43 sends connection to switching switch 141
The instruction of refrigeration control circuit 143.
The present invention is further optimized the controller in ageing rack, and the present invention by detecting load resistance constantly
Temperature value, to realize the switching between fan cooling and cooling assembly heat dissipation, not single heat that can be effectively reduced load resistance
Amount, while sinking path is determined according to the temperature of load resistance height, it can cross and be effectively saved resource, substantially reduce cost.
Embodiment 7
It is a kind of for providing the ageing rack of Heng Yuan for secondary power supply aging test, the ageing rack as different from Example 1,
Control assembly further includes the constant-current control circuit 21 being connected with controller 4, and as shown in figure 13, constant-current control circuit 21 includes operation
Amplifier 211, power resistor 212, current value limit control module 213 and inhibition capacitance 214;Operational amplifier 211 respectively with output
Interface 17, controller 4 and current value limit control module 213 and are connected, and after power resistor 212 is in parallel with capacitance 214 is inhibited, are put with operation
Big device 211 is connected.
Embodiment 8
It is a kind of for providing the ageing rack of Heng Yuan for secondary power supply aging test, the ageing rack as different from Example 1,
Ageing rack further includes the ageing component being set in cabinet, and the ageing component is communicated with external computer comprising control
Frequency sets code switch 101, the first radio frequency for being connected with answering machine frequency test output end is opened for plate 100, setting of being connected with control panel 100
Close 102 and coupler 103, the frequency meter 104 being connected with the first RF switch 102, the attenuator 105 that is connected with coupler 103
With wave detector 106, the second RF switch 107 being connected with attenuator 105, the oscillograph 108 being connected with wave detector 106 and with
The connected power meter 109 of two RF switches 107, the power meter 109, frequency meter 104 and signal source pass through gpib bus interface
It is communicated with computer, simultaneous computer is communicated with control panel, is realized and is set code processing to the frequency of setting of out-put supply.
Control panel is mainly by FPGA (programmable logic array), relay array, Self-resetting insurance, driving circuit, alarm
Buzzer and RS232 interface conversion circuit composition.According to " program control/manual " button actions of panel, selection is to pass through computer
Software operates.
Wherein, power meter is used to measure response and exports the performance number after directional coupler;Frequency meter is answered for measuring
Answer the frequency signal of machine output;Oscillograph is used to measure the waveform that response output signal passes through coupler and wave detector.
The workflow of the ageing component is as shown in figure 14, which 1~5 remote control answering machine can carry out electricity simultaneously
Aging test, select one first radio frequency to open through five the frequency test output end (X-band) of five sets of answering machines (product 1 to product 5)
Output is closed to a frequency meter interface, carries out reference frequency test;RF pulse-to-pulse (the Ku waves of five sets of answering machines (product 1 to product 5)
Section) select one second RF switch to export to a power meter interface by five again after coupler and 10dB attenuators, it is sent out
Acc power test is penetrated, while exporting five ports BNC after 20dB wave detectors, the radio-frequency pulse for being remotely controlled answering machine input can be declined
It is output to oscillograph test after subtracting detection.Power meter, frequency meter, signal source are communicated by gpib bus with computer.Together
When computer by RS232 serial ports with control board communications, to remote control answering machine set frequency set code.
The present invention by ageing rack can electric aging test be carried out to 1~5 remote control answering machine simultaneously;It can be to being remotely controlled response
Machine sets frequency and sets code;Guided missile address code can be provided;It can monitor whether remote control answering machine is in self-destruction state;It is defeated can will to be remotely controlled answering machine
It is exported after the radio-frequency pulse decaying detection entered;Reference frequency test and transmitter can be carried out to the remote control answering machine for carrying out electric ageing
Power test, and record.
Control assembly further includes that the processor being connected with controller 4, RF switch, the frequency meter that is connected with RF switch connect
Mouthful, the coupler being connected with RF switch, and the attenuator that is connected with coupler, and the power meter interface that is connected with attenuator.
Only several embodiments of the present invention are expressed for above example, the description thereof is more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection model of the present invention
It encloses.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.