CN203133190U - Thermoelectric refrigeration assembly aging screening automatic testing device - Google Patents
Thermoelectric refrigeration assembly aging screening automatic testing device Download PDFInfo
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- CN203133190U CN203133190U CN 201220729491 CN201220729491U CN203133190U CN 203133190 U CN203133190 U CN 203133190U CN 201220729491 CN201220729491 CN 201220729491 CN 201220729491 U CN201220729491 U CN 201220729491U CN 203133190 U CN203133190 U CN 203133190U
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- thermoelectric cooling
- cooling module
- substrate
- thermoelectric refrigeration
- ceramic heat
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Abstract
The utility model relates to a thermoelectric refrigeration assembly aging screening automatic testing device. The thermoelectric refrigeration assembly aging screening automatic testing device comprises a testing platform and a testing system control system. The thermoelectric refrigeration assembly aging screening automatic testing device is characterized in that the thermoelectric refrigeration assembly aging screening automatic testing device further comprises a temperature control system. According to the thermoelectric refrigeration assembly aging screening automatic testing device of the utility model, ceramic heating rods in the testing platform are automatically controlled by the temperature control system and the testing system control system, such that thermal compensation for the testing platform can be realized; the time and frequency of switching on/off of thermoelectric refrigeration assemblies can be automatically controlled by the temperature control system and the testing system control system, such that electric shock aging testing can be performed on the thermoelectric refrigeration assemblies; and therefore, hidden troubles and thermoelectric refrigeration assemblies which will fail at an early stage can be eliminated, and the reliability of the thermoelectric refrigeration assemblies which work in high-temperature environments can be ensured.
Description
Technical field
The utility model belongs to thermoelectric cooling module test unit technical field, particularly relates to a kind of thermoelectric cooling module burn-in screen automatic test equipment.
Background technology
Thermoelectric cooling module has compact conformation, does not have moving component, the reliability height, be not subjected to characteristics such as environmental influence, is one of first-selected battery of using of rugged surroundings.Along with the continuous development of science and technology, the range of application of thermoelectric cooling module constantly enlarges, and particularly to refrigeration and the temperature control of high power consumption components and parts in the rugged surroundings, has improved the requirement of and temperature aging reliability aging to the thermoelectric cooling module surge.Therefore, thermoelectric cooling module being carried out the burn-in screen test is to guarantee one of important process of thermoelectric cooling module reliability.
At present, the mode of thermoelectric cooling module being carried out the burn-in screen test is: in the room temperature environment, the hot side of thermoelectric cooling module is attached to the water jacket surface that aluminum alloy junction constitutes, there are two water nozzles at aluminium alloy water jacket two ends, be connected with return water system with the water inlet of recirculated water respectively, constitute series via, realize flow, take away the heat that the thermoelectric cooling module hot side produces, by impulse timer control, to the thermoelectric cooling module 2min that switches on, outage 2min, total time 2h, the rush of current number of times is 30 times burn-in screen test, as standard, weeds out the thermoelectric cooling module that does not meet the demands.But this method is because hot-face temperature is uncontrollable, adaptive ability is poor, be difficult to guarantee thermoelectric cooling module high reliability work in abominable and hot environment, cause easily because thermoelectric cooling module initial failure causes single unit system and can't operate as normal cause tremendous loss.
Summary of the invention
The utility model is for solving the technical matters that exists in the known technology, provide a kind of guarantee thermoelectric cooling module can Yin Wendu in abominable and hot environment aging and surge wear out and cause initial failure to cause the thermoelectric cooling module burn-in screen automatic test equipment that single unit system can't operate as normal.
Technical solution adopted in the utility model is:
Thermoelectric cooling module burn-in screen automatic test equipment, comprise that substrate and radiating fin are the test platform that posts the thermoelectric cooling module hot side and the test system control system of one, be characterized in: be embedded with in the substrate be parallel on the substrate plane and be parallel to each other, equally distributed two above ceramic heat rods, wherein ceramic heat rod both sides are equipped with the thermocouple hole that is parallel to the ceramic heat rod, and ceramic heat rod the two poles of the earth are connected in the temperature-controlling system of the temperature control instrument that contains thermopair and solid-state relay; The two poles of the earth of thermoelectric cooling module are connected in the test system control system that comprises impulse timer and A.C. contactor.
The utility model can also adopt following technical measures:
The blank space mount that described substrate is installed the thermoelectric cooling module one side has multilayer material; Described multilayer material is two-sided loose fiber shape of aluminizing, netted or foamed plastics, and described mount material is mylar.
Described radiating fin is the wedge-like radiating fin that is parallel to each other, passes through many serrate of blackout processing.
Described being embedded between ceramic heat rod in the substrate and thermopair and the substrate all is equipped with the hot silicone grease of superconduction.
Described thermoelectric cooling module is fixed on the substrate through the polyimide screw by the polyimide pressing plate.
Advantage and the good effect that the utlity model has are:
1, the utility model is controlled the excellent thermal compensation that realizes test platform of ceramic heat owing to adopted embedding ceramic heat rod in test platform automatically by temperature-controlling system and test system control system, carries out thermoelectric cooling module temperature aging test; Automatically control time and the number of times of thermoelectric cooling module power on/off by temperature-controlling system and test system control system, carry out thermoelectric cooling module surge aging test; There is the thermoelectric cooling module of hidden danger and initial failure in rejecting, guarantees the reliability of thermoelectric cooling module in hot operation.
2, the utility model is owing to posted thermoelectric cooling module blank space mount simultaneously " multilayer " at test platform, and in the processing of turning black of the radiating fin of test platform, form the pattern of natural convection and heat loss through radiation, make thermoelectric cooling module be in test rugged surroundings.
3, be filled with the hot silicone grease of superconduction in the hole of placement ceramic heat rod in the utility model substrate, guarantee good thermal conductivity;
4, the utility model adopts the zigzag wedge-like radiating fin that blackout is handled, and with the junction of substrate root be that circumference passes through shape mutually, both guaranteed good heat radiating, improved capability of resistance to radiation again;
5, the substrate surface of the utility model test platform is processed with the mounting hole that satisfies different model size thermoelectric cooling module, satisfy installation and the test demand of different model thermoelectric cooling module, have good versatility and powerful adaptability, can realize that the burn-in screen of all standing thermoelectric cooling module is from dynamic test.
Description of drawings
Fig. 1 is that the utility model test platform master looks synoptic diagram;
Fig. 2 is the schematic top plan view of Fig. 1;
Fig. 3 is that synoptic diagram is looked on the left side of Fig. 1;
Fig. 4 is the enlarged diagram of A among Fig. 3;
Fig. 5 is the enlarged diagram of B among Fig. 1;
Fig. 6 is the utility model test system control system wiring diagram;
Fig. 7 is the utility model temperature-controlling system wiring diagram.
Wherein, 1-test platform, 2-pressing plate, the 3-thermoelectric cooling module, 4-screw, 5-ceramic heat rod, the hot silicone grease of 6-superconduction, 7-thermocouple hole, 8-top impulse timer, 2 power supplies of 9-assembly are used A.C. contactor, 10-temperature control instrument, 11-thermopair, the 12-solid-state relay, 13-radiating fin, 14-substrate, 15-below impulse timer, 16-assembly 1 power supply A.C. contactor.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Thermoelectric cooling module burn-in screen automatic test equipment comprises that substrate and radiating fin are the test platform that posts the thermoelectric cooling module hot side and the test system control system of one.
The innovative point of utility model is:
Be embedded with in the substrate be parallel on the substrate plane and be parallel to each other, equally distributed two above ceramic heat rods, wherein ceramic heat rod both sides are equipped with the thermocouple hole that is parallel to the ceramic heat rod, and ceramic heat rod the two poles of the earth are connected in the temperature-controlling system of the temperature control instrument that contains thermopair and solid-state relay; The two poles of the earth of thermoelectric cooling module are connected in the test system control system that comprises impulse timer and A.C. contactor; The blank space mount that described substrate is installed the thermoelectric cooling module one side has multilayer material; Described multilayer material is two-sided loose fiber shape of aluminizing, netted or foamed plastics, and described mount material is mylar; Described radiating fin is the wedge-like radiating fin that is parallel to each other, passes through many serrate of blackout processing; Described being embedded between ceramic heat rod in the substrate and thermopair and the substrate all is equipped with the hot silicone grease of superconduction; Described thermoelectric cooling module is fixed on the substrate through the polyimide screw by the polyimide pressing plate.
Manufacturing process of the present utility model:
As Figure 1-3, it is length 500mm that employing is easy to process with the good 6061 aluminium alloys making physical dimension of heat conductivility, width 300mm, the test platform 1 of height 60mm, test platform is one, is positioned at the substrate lower end by the thick substrate 14 of upper end 10mm with substrate, and constitutes perpendicular to the high radiating fin 13 of 50mm on plane on the substrate.
Adopt the finish-milling processing technology to guarantee substrate surface flatness and surfaceness, being positioned at the relative two sides of substrate by lengthening drill bit respectively processes and is parallel to substrate surface, and self is parallel to each other, equally distributed 25 holes of placing ceramic heat rod 5, both sides, a hole in the middle part of wherein being positioned at process a pair of symmetry and are parallel to the thermocouple hole 7 in the hole of placing the ceramic heat rod, according to thermoelectric cooling module 3 sizes, process the mounting hole of 96 thermoelectric cooling modules at substrate surface, all mounting holes all are equipped with the stainless steel steel-wire screw-socket of M4, prevent from installing and using the different button of the machining screw that too frequently causes aluminium alloy, improve stability and the reliability of thermoelectric cooling module loading and unloading; Radiating fin below the substrate shown in Figure 2 be parallel to each other, handle through blackout many as shown in Figure 4 both sides be zigzag wedge-like radiating fin, the root width of radiating fin and substrate junction is that the circumference of 5mm passes through shape mutually, increase the thermal capacity of substrate, guarantee good and sufficient heat transfer property, do not adopt the forced air cooling pattern, do not use blower fan, can improve the area of dissipation of radiating fin greatly, guarantee good heat radiating; The Berlin black blackness control that blackout is handled form the pattern of natural convection and heat loss through radiation, and aerial thermal radiation capability is strong 0.96～0.98.
In substrate, all be crowded with the hot silicone grease 6 of superconduction in the hole of each placement ceramic heat rod and the thermocouple hole, embed well as shown in Figure 5 ceramic heat rod of thermal conductivity, electrical insulation capability, 25 ceramic heat rod electricity of substrate one side also are connected on the AWG16 lead, by the 220VAC ac power supply.See Fig. 7, the be connected in parallel utmost point of line of ceramic heat rod is connected the output terminal of solid-state relay, another utmost point is connected an end of AC power, heating rod is positioned at the midline position of substrate 10mm, the parallel distance of heating rod is 20mm, the power of heating rod is 40W, the thermal compensation ability of quota 2000W can be provided altogether, the ceramic heat rod has good thermo-contact, heat-conductive characteristic with substrate, guarantee the heat radiation that the ceramic heat rod can be good, the ceramic heat rod reduces electric current by Alternating Current Power Supply, reduces line loss.
As shown in Figure 2, with 16 uniform upper surface of base plate that are attached to test platform of thermoelectric cooling module hot side, 16 thermoelectric cooling modules are divided into two rows, 8 thermoelectric cooling modules of last row are connected in parallel, 8 thermoelectric cooling modules as assembly 1, following row are connected in parallel, as assembly 2, guarantee the voltage consistance of each thermoelectric cooling module; Select for use heat conductivility is poor, processing characteristics is good polyimide pressing plate 2 to place the huyashi-chuuka (cold chinese-style noodles) of each thermoelectric cooling module, screw 4 with the polyimide material, by pressing plate thermoelectric cooling module is packed on the substrate, polyimide pressing plate and screw coefficient of heat conductivity are low, reduce to leak heat, possess high-temperature stability simultaneously, guarantee between hot and cold of the thermoelectric cooling module adiabatic; Select for use loose fiber shape, netted or foamed plastics as heat-barrier material, after two-sided the aluminizing of heat-barrier material, do not install the place of thermoelectric cooling module at upper surface of base plate with the mylar mount, as multilayer material, play well heat insulation, as to reduce test platform surface heat radiation loss effect; As shown in Figure 6, positive and negative the two poles of the earth of assembly 1 are connected A.C. contactor 16 output terminals into assembly 1 power supply, positive and negative the two poles of the earth of assembly 2 are connected the output terminal into the A.C. contactor 9 of assembly 2 power supply usefulness;
The course of work of the present utility model:
The hot side working temperature of setting thermoelectric cooling module is 70 ℃, and with 5min conduction time, power-off time 5min is an on/off electricity number of times, and test period 12h carries out the burn-in screen test of thermoelectric cooling module in the utility model device.
Usually the thermoelectric cooling module hot side of single-stage can't reach 70 ℃.As shown in Figure 7, control accuracy is reached ± 0.5 ℃, possess from adjust, Pt100 thermopair 11 on the temperature control instrument 10 of overshoot adaptation function and control in advance selects one arbitrarily as point for measuring temperature in the symmetric position in thermocouple hole, 1 thermopair is embedded in the thermocouple hole of falling heat-transfer silicone grease in the substrate, guarantee the truly hot-face temperature of perception thermoelectric cooling module of thermopair.Feed back to temperature control instrument by the thermocouple monitoring temperature signal, connect interchange output by temperature control instrument control MGR-1 D4810 solid-state relay 12, make the ceramic heat rod work that is connected in the ac circuit, substrate to test platform carries out thermal compensation, when the substrate temperature of test platform during near design temperature, thermopair feedback temperature signal is to temperature control instrument, automatically controlled the power on/off time of solid-state relay by temperature control instrument, namely regulate the dutycycle of power on/off, guarantee that the hot-face temperature of thermoelectric cooling module remains on 70 ℃.
As shown in Figure 6, the setting model is that be 5min the conduction time of the top impulse timer 8 of DH48S, connect the 220V AC power, the contact 5 of top impulse timer is charged, connection is the CJX2501 A.C. contactor 9 of assembly 2 power supplies and is the A.C. contactor 16 of the CJX2501 of assembly 1 power supply usefulness, realize that D.C. regulated power supply is to the power supply of two row's thermoelectric cooling modules on the substrate, the first step as burn-in screen test system, the 5min end-of-job of switching on, contact 5 in the impulse timer of top disconnects, simultaneously contact 6 closures; Contact two ac contactor contacts of 5 output signals control disconnect, supply access between D.C. regulated power supply and the thermoelectric cooling module is disconnected, enter the off-position of thermoelectric cooling module, the outage timing section that below impulse timer 15 that models are all DH48S enters thermoelectric cooling module is triggered in contact 6, behind the impulse timer timing 5min, the contact 2 of below impulse timer disconnects, simultaneously contact 6 closures; Impulse timer contact, 6 output signals control top, contact 3 resets, and open contact 3, and the realization time resets, and finishes thermoelectric cooling module on/off electric process one time; After the top impulse timer resetted, contact 5 closures entered the circulation of next on/off electricity; Thermoelectric cooling module carries out 12h, the cyclic test of 72 on/off electricity altogether, by test, filters out maximum temperature difference and is not less than 80% and internal resistance rate of change absolute value before the test less than 12% inefficacy thermoelectric cooling module.
The utility model thermoelectric cooling module burn-in screen automatic test equipment possesses automatic control function, can test control efficiently, easily, test platform can be realized the burn-in screen test as various gauge size thermoelectric cooling modules such as 60mm * 60mm, 55mm * 55mm, 50mm * 50mm, 40mm * 40mm, 30mm * 30mm, 20mm * 20mm, 15mm * 15mm, realizes the thermoelectric cooling module burn-in screen test of entire test standardization, product seriation.
Temperature is aging to refer to that thermoelectric cooling module is 70 ℃ of temperature stress dispose procedures that carry out at hot-face temperature, and temperature difference digestion time is the whole test cycle, and the time is 12h.Surge is aging to be referred to when hot-face temperature is 70 ℃, adopt the test system of energising 5min outage 5min, electric current is tending towards steady-state value gradually by the transient state maximum current in the galvanization, 1.3 times of maximum current the chances are steady-state current, current stabilization is tested general 120s, all the other 180s are steady-state current retention times, thus surge seasoned be the electric stress ageing process, digestion time is 6h.
Although by reference to the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms.These all belong within the protection domain of the present utility model.
Claims (6)
1. thermoelectric cooling module burn-in screen automatic test equipment, comprise that substrate and radiating fin are the test platform that posts the thermoelectric cooling module hot side and the test system control system of one, it is characterized in that: be embedded with in the substrate be parallel on the substrate plane and be parallel to each other, equally distributed two above ceramic heat rods, wherein ceramic heat rod both sides are equipped with the thermocouple hole that is parallel to the ceramic heat rod, and ceramic heat rod the two poles of the earth are connected in the temperature-controlling system of the temperature control instrument that contains thermopair and solid-state relay; The two poles of the earth of thermoelectric cooling module are connected in the test system control system that comprises impulse timer and A.C. contactor.
2. thermoelectric cooling module burn-in screen automatic test equipment according to claim 1 is characterized in that: the blank space mount that described substrate is installed the thermoelectric cooling module one side has multilayer material.
3. thermoelectric cooling module burn-in screen automatic test equipment according to claim 1 is characterized in that: described radiating fin is the wedge-like radiating fin of many serrate being parallel to each other, handling through blackout.
4. thermoelectric cooling module burn-in screen automatic test equipment according to claim 1 is characterized in that: described being embedded between ceramic heat rod in the substrate and thermopair and the substrate all is equipped with the hot silicone grease of superconduction.
5. thermoelectric cooling module burn-in screen automatic test equipment according to claim 1, it is characterized in that: described thermoelectric cooling module is fixed on the substrate through the polyimide screw by the polyimide pressing plate.
6. thermoelectric cooling module burn-in screen automatic test equipment according to claim 2, it is characterized in that: described multilayer material is two-sided loose fiber shape of aluminizing, netted or foamed plastics, and described mount material is mylar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220729491 CN203133190U (en) | 2012-12-24 | 2012-12-24 | Thermoelectric refrigeration assembly aging screening automatic testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220729491 CN203133190U (en) | 2012-12-24 | 2012-12-24 | Thermoelectric refrigeration assembly aging screening automatic testing device |
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| Publication Number | Publication Date |
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| CN203133190U true CN203133190U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220729491 Expired - Fee Related CN203133190U (en) | 2012-12-24 | 2012-12-24 | Thermoelectric refrigeration assembly aging screening automatic testing device |
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| CN (1) | CN203133190U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105761772A (en) * | 2014-12-19 | 2016-07-13 | 中国电子科技集团公司第十八研究所 | Low temperature control method for isotope temperature difference battery wall face |
| CN110501015A (en) * | 2019-07-03 | 2019-11-26 | 上海卫星工程研究所 | A kind of sun sensor insulating mounting method applied to moonlet |
-
2012
- 2012-12-24 CN CN 201220729491 patent/CN203133190U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105761772A (en) * | 2014-12-19 | 2016-07-13 | 中国电子科技集团公司第十八研究所 | Low temperature control method for isotope temperature difference battery wall face |
| CN110501015A (en) * | 2019-07-03 | 2019-11-26 | 上海卫星工程研究所 | A kind of sun sensor insulating mounting method applied to moonlet |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20181224 |