CN103228369A

CN103228369A - Product testing system and associated methods

Info

Publication number: CN103228369A
Application number: CN2011800576114A
Authority: CN
Inventors: 詹姆士·A·普若沃斯特; 马修·吉尔拉法; 温德尔·K·R·哈特庆斯
Original assignee: Qualmark Corp
Current assignee: Ace Parker North America Ltd
Priority date: 2010-10-01
Filing date: 2011-09-30
Publication date: 2013-07-31
Anticipated expiration: 2031-09-30
Also published as: BR112013007863A2; EP2621644A2; CN202403882U; CN202267586U; WO2012045036A3; CN103228369B; WO2012045036A2

Abstract

A product testing system includes a plurality of vibration tables controllable to vibrate product mounted with the vibration tables and an air circulator for controlling air temperature of air surrounding the product. A vibration tray includes a table top and fixturing for coupling product to the table top; the table top may be selectively affixed to mating structure within a product testing system and actuated to function as a vibration table within the product testing system, and the table top may be selectively removed from the mating structure to facilitate coupling and decoupling of product to the table top. A product testing controller includes means for controlling vibration of a plurality of vibration tables in a common cabinet, and means for controlling air temperature surrounding product mounted on the vibration tables.

Description

Product test system and the method that is associated

The cross reference of related application

The application require the exercise question submitted on August 12nd, 2011 for " the thermal control method and apparatus of METHOD AND APPARATUS FOR THERMAL CONTROL OF A MULTIPLE CHAMBER TEST SYSTEM(multicell test macro) " the 13/209th, the priority of No. 136 U.S. Patent applications, the 13/209th, to be the exercise question submitted on October 1st, 2010 be the continuation application of the 12/896th, No. 254 U.S. Patent application of " the thermal control method and apparatus of METHOD AND APPARATUS FOR THERMAL CONTROL OF A MULTIPLE CHAMBER TEST SYSTEM(multicell test macro) " for No. 136 U.S. Patent applications.The application also requires the exercise question submitted on October 1st, 2010 priority for the 12/896th, No. 245 U.S. Patent application of " TEST SYSTEM WITH VIBRATION TABLE(has the test macro of shaking platform) ".Whole disclosures of above-mentioned application are incorporated this paper into way of reference.

Background

Being used to carry out high accelerated aging test (HALT), highly accelerated stress screen (HASS) and the high system that quickens stress sampling observation (HASA) can be in order to the reliability of products and the durability of test manufacturing.More specifically, durability of products can adopt HALT system and step to test.Product also can use HASS step or the test of HASA step to find defective before being dispensed into the consumer, tested all over products in the HASS step, and in the HASA step, selected sample to test from product stream.Generally, such test comprises and makes device under test stand vibrational energy and/or temperature cycles.By device under test being installed to oscillator or the shaking platform in the test cabinet of controlled environment, such stress can be affacted tested device.

Summary of the invention

With regard to HASS and HASA program, comprise and utilize the HASS and the HASA program of the multiaxis random vibration of (per minute is greater than 40C) variation fast that following system can test large-tonnage product effectively.Disclose following test cabinet, described test cabinet allows to enter shaking platform from many sides, is placed in the test cabinet thereby be convenient to product to be measured, and is convenient to the interconnection of product to be measured to shaking platform.The prior art that has the big zone (and therefore seldom being used to support product to be measured) that is difficult to enter with shaking platform is different, and system disclosed herein operation to be to increase the test cabinet treating capacity, and the cost that therefore whenever is subjected to measurement unit is lower than the cost in should there is something special.In these systems, the shaking platform surface is determined size making full use of the space, thereby compared with prior art, the energy efficiency during having reduced the size of peripheral chambers and having improved thermal cycle.

According to some embodiment of the present disclosure, provide the system of the product test with a plurality of test cabinets or rack.More particularly, all related with shaking platform a plurality of test cabinets or test volume are set in the single rack (, being sometimes referred to as " shell " herein), are used for testing simultaneously the multiple arrangement or the product that are called device under test here.Each test cabinet in the shell is provided to the temperature controlled air from plenum chamber.In addition, for the embodiment that adopts pneumatic actuator or beche, can involving vibrations platform gas shell, mix with the chamber atmosphere of temperature control to prevent the gas that actuator is discharged.

Provide identical or similar hot state in a plurality of chambers each, various features has been developed out and has been incorporated in the plenum chamber design.For example, in the inlet plenum part of air treatment system, arrange heating element heater and/or cooling element.By one or more fans, air sucks inlet plenum, by heating and/or cooling element.According to some embodiment of the present disclosure, fan has tangential air blast type design.In addition, fan can have the width that is at or about the part plenum chamber assembly or the plenum chamber assembly.The air of fan output is through the exit portion of plenum chamber assembly or through the downstream chamber.Air is provided in the situation of a plurality of test cabinets that vertically pile up at the plenum chamber assembly, the downstream chamber is tapered or staggered, makes the area of plenum chamber increase with the distance of leaving fan and reduces.According to another embodiment of the present disclosure, can comprise one or more flow control apparatus.More particularly, flow control apparatus or fluidic can be arranged in the downstream chamber or with the downstream chamber and be communicated with, so that air is to the equilibrium distribution of a plurality of test cabinets.In addition, flow control apparatus can comprise changed course device, air damper, valve, flabellum, blade or be used to control other structure or the device of the air rate or the flow direction.According to other embodiment, the effect of flow control apparatus can change, and flows in order to the air of control from the downstream chamber to the test cabinet related with flow control apparatus.According to another embodiment, adopting pneumatic actuator to operate in the situation of shaking platform, can shell be set so that the gas that pneumatic actuator is discharged is separated with the temperature control chamber atmosphere that occupies the test zone of described chamber.

According to some embodiment of the present disclosure, a plurality of test cabinets can be arranged to row.According to such embodiment, each row can with the air circulator part relation of special use.For example, each row test cabinet can be related with one or more heating element heaters, one or more cooling element, one or more fan and downstream chamber.In addition, the air circulator parts related with specific test cabinet or test cabinet row can be by controlled with the irrelevant mode of the air circulator parts of other test cabinet or test cabinet row, thus the flexibility and the application of increase product test system.Other the embodiment according to another, the flow control apparatus related with each test cabinet or test cabinet group can be controlled respectively.

Method according to some embodiment of the present disclosure comprises a plurality of test cabinets that equably air are assigned to the product test system.This can comprise that control is assigned to the air of different chamber, makes that being blown into each indoor air rate equates or equate substantially.According to another other embodiment, the foundation of thermal uniformity or keep can comprise with different flow rates provides air from plenum chamber for different chambers.According to another embodiment, described method can comprise the flow rate of the one or more supply air of variation in described test cabinet.In addition, can be separated from the air in the source outside the thermal control plenum chamber, influence the hot state in the test zone of a plurality of chambers to prevent this air.

According to another embodiment of the present disclosure, method can comprise controls air independently to the different chamber of product test chamber system or the distribution of one group of chamber.For example, when system has a plurality of volume of many test cabinets,, can control heating element heater, cooling element or fan individually for each volume.As another example, can control flow control apparatus individually, described flow control apparatus includes but not limited to the active flow control apparatus related with each test cabinet.For example, in same test cabinet row or in different test cabinet row, the flow control apparatus that is used for certain test cabinet can irrespectively be operated with the flow control apparatus that is used for other test cabinet.

According to following discussion, particularly in conjunction with the accompanying drawings the time, it is more clear that the feature and advantage of other of the application's embodiment will become.

Description of drawings

Fig. 1 is the front perspective view according to the product test system of embodiment;

Fig. 2 is that wherein open at the Qianmen according to the front perspective view of the product test system of embodiment;

Fig. 3 is the side cross-sectional view according to the part of the product test system of embodiment, has wherein described some features of air circulator;

Fig. 4 A is the front view according to the part of the product test system of embodiment, has wherein described some features of air circulator;

Fig. 4 B is the front view according to the part of the product test system of embodiment, has wherein described some features of air circulator;

Fig. 4 C is the front schematic view according to the shaking platform assembly of the product test system of embodiment;

Fig. 4 D is the front schematic view according to the shaking platform assembly of the product test system of embodiment;

Fig. 4 E is the front schematic view according to the product test system of the extensible row chamber of having of embodiment;

Fig. 4 F is according to embodiment, the front view of the product test system that has shown in Fig. 4 E, and wherein, an extensible row chamber is moved out of and is substituted by the product frame;

Fig. 5 A is the bottom perspective view according to the part of the shaking platform assembly of embodiment;

Fig. 5 B is the bottom view according to the part of the shaking platform assembly of embodiment;

Fig. 5 C is the top view according to the part of the shaking platform assembly of embodiment;

Fig. 5 D is the front view according to the part of the shaking platform assembly of embodiment, comprising the shaking platform support component;

Fig. 5 E is the side view according to the part of the shaking platform assembly of embodiment, comprising the shaking platform support component;

Fig. 5 F shows the framework according to embodiment, and this framework is configured to the airtight fixture pallet that product can be installed and is connected;

Fig. 5 G schematically shows the fixture pallet according to the line 5G-5G along Fig. 5 F of embodiment and how to realize seal with framework, and shows and can be used in the fixed form that the product of testing in the system is installed;

Fig. 6 A is the block diagram that illustrates according to the parts of the product test system of embodiment;

The schematically illustrated control that comprises according to embodiment of Fig. 6 B is arranged in the product test system of a RACS of the air circulator of a plurality of racks and platform actuation subsystem;

Fig. 7 is the flow chart that illustrates according to the operation of the product test system of embodiment;

Fig. 8 is the block diagram that illustrates according to the parts of the product test system of other embodiment;

Fig. 9 shows the air outlet slit according to embodiment;

Figure 10 shows the air outlet slit according to embodiment;

Figure 11 is according to embodiment, as the schematic diagram of the product test system of Fig. 1,2,3,4A-4F, 6A, 6B and 8, and it has further shown the details that exemplary temperature control is provided;

Figure 12-the 18th illustrates and is used for controlling flow chart as the illustrative methods of the temperature in the test cabinet of Fig. 1,2,3,4A-4F, 6A, 6B and 8 according to embodiment;

Figure 19 is the temperature-time diagram according to embodiment, and wherein, the solid line representative is composed the preferred temperature of test cabinet among interior Fig. 1,2,3, the 4A-4F that limits, 6A, the 6B and 8 as thinking the expectation among Figure 11, and dotted line is represented the measurement temperature of test cabinet; And

Figure 20 is the temperature-time diagram according to embodiment, and wherein, solid line is represented the preferred temperature of test cabinet among Fig. 1 shown in Figure 19,2,3,4A-4F, 6A, the 6B and 8, and the dotted line representative utilizes the measurement temperature of the test cabinet of the adjustment spectrum control among Figure 11.

The specific embodiment

Fig. 1 is the front perspective view of product test system 100, and this product test system 100 comprises rack or the shell 104 with a plurality of independent test cabinets 108.In the example shown, six test cabinets 108 are included in rack 104 and the system 100.But, under the situation that does not break away from the application's scope, can comprise any a plurality of test cabinet 108 in the system 100; In addition, these test cabinets can be arranged in single rack 104 or a plurality of rack 104 (it is described to see below Fig. 6 B).According to illustrative embodiments, each independent test cabinet 108 involving vibrations platform and the thermal control environment that is suitable for carrying out reliability of products, durability and/or defect test.Though a plurality of test cabinets 108 shown in Fig. 1 are similar on size and dimension, under the situation that does not break away from the application's scope, system 100 can comprise a plurality of test cabinets with different size and shape.

Fig. 2 shows the product test system 100 of Fig. 1, and wherein access door 204 is opened, to allow to enter into each test cabinet 108.Under the state that door 204 is opened, in embodiment, can observe some parts in the parts of test cabinet 108.Especially, in the embodiment of Fig. 2, each test cabinet 108 comprises oscillator or shaking platform assembly 208.Each shaking platform assembly 208 usually comprises the shaking platform 212 with installation side or surface 214, and described installation side or surface 214 comprise mounting points 216, and product to be measured can directly or by one or more fixtures be connected to mounting points 216.Though shaking platform 212 shown among Fig. 2 is a rectangle, shaking platform can be bent, is shaped or increases the weight of, when starting, changing the frequency response of platform, as shown among Fig. 5 A-5G for example or as described in.

Each shaking platform assembly 208 can be associated with side plate 220, side plate 220 is with shaking platform cover 224(as shown in Figure 3) and the sidewall 228 and the median wall 230 that limit the lateral extent of test cabinet 108, surround actuator and the support member (in Fig. 2 not shown, see 5A to Fig. 5 E) related with shaking platform assembly 208.This air that allows the weather in the test cabinet 108 to control is retained with actuator and separates.For example, the actuator of shaking platform assembly 208 can be accommodated in the environment that separates with the chamber atmosphere that is provided to test cabinet 108 thus, and wherein device under test is arranged in the test cabinet 108 and stands thermal cycle and/or thermal control.As another example, for the system 100 that uses pneumatic actuator, by surrounding the actuator related, can prevent to mix with the chamber atmosphere that is provided to test cabinet 108 from the gas of the pneumatic actuator discharge related with shaking platform assembly 208 with each shaking platform assembly 208.Side plate 220 can utilize securing member such as screw and sidewall 228, median wall 230, shaking platform cover 224 and/or shaking platform 212 attached, perhaps can put into the groove that formed by sidewall and median wall, cover and/or platform to form labyrinth sealing.

Fig. 2 shows the embodiment of the parts related with the air circulator 232 of product test system 100.In the embodiment of Fig. 2, air circulator 232 comprises at least one air intake 236.In addition, for each test cabinet 108 that comprises in the system 100, the volume related with test cabinet 108 is communicated with at least one this inlet 236.In the example system shown in Fig. 2 100, three test cabinets 108 of each row have an air intake 236.Air circulator 232 comprises inlet plenum 240 extraly.Inlet plenum 240 passes through air intake 236 admission of airs, and can take in air circulation fan 304 or be communicated with (see figure 3) with air circulation fan 304.

Fig. 3 shows the sectional view of the system 100 in the embodiment, and shows the feature of air circulator 232 especially.Usually, the chamber atmosphere of temperature control circulates via test cabinet 108 by air circulator 232.In operation, air is drawn in the inlet plenum 240 by the air intake in the system 100 236 by fan 304.Fan 304 can for, for example tangential air blast or centrifugal fan; A plurality of fans 304 can be set in addition.As shown in Figure 3, inlet plenum 240 is taken in thermal control element 306, and each in these thermal control elements can comprise heater 308 and/or cooling device 312.As example, heater 308 is straties, cooling device 312 is such cooling systems, and it can utilize the Compressed Gas (for example, carbon dioxide) of cryogenic liquid (this cryogenic liquid can be liquid nitrogen or other cryogenic liquids) and/or cooling when compression.Alternately, cooling device 312 is the coil of evaporation plate or mechanical refrigeration unit.In some embodiments, from high temperature (for example, than room temperature high 20 degrees centigrade or more) downward cooling products is at first by using air circulator 232 to utilize the space of air at room temperature flushing around product, thereby save the cost of cryogenic liquid, Compressed Gas and/or the refrigeration unit of operating machine.After the section or when sensing predetermined temperature decline, then can implement cryogenic liquid, Compressed Gas and/or mechanically refrigerated cooling at the fixed time to finish the final temperature that product is cooled to expect.

The air that is sucked in the inlet plenum 240 can be heated or cooled as required, is provided to the test cabinet 108 of system 100 with the supply air that will be in desired temperature.Can understand as those of ordinary skills, the operation of the thermal control element 306 of particular type can increase or reduce the volume of the air in the air circulator 232, and wherein air circulator 232 can be but must not be closed-loop system.For example, be used to the several times that the cryogenic liquid that cools off and/or Compressed Gas can be introduced into air circulator 232 and expand into its initial volume.Therefore, in some embodiments, air circulator 232 can comprise the mechanism 340 of taking in as requested or discharging air, to keep the air pressure of the constant or approximately constant in the rack 104.Mechanism 340 can be for example, to be provided with the blast pipe of one way stop peturn valve, the mechanism that perhaps comprises baffle plate, during air pressure outside the internal pressure in the system 100 surpasses system 100, baffle plate is pushed open by air pressure, and when internal pressure is less than or equal to external pressure barrier seal systems 100.

Distribute or downstream chamber 320 by fan outlet 316 arrival air by the air of fan 304 by inlet plenum 240 suctions.As shown in Figure 3, downstream chamber 320 has the degree of depth that reduces usually with the distance increase of distance fan outlet 316.In addition, for each test cabinet 108 air outlet slit 324 is set.The reducing of the depth d of downstream chamber 320 provides the air-flow plenum chamber that interlocks, and this helps the air of the temperature control of isodose is provided to test cabinet 108.In addition, downstream chamber 320 can include the further feature that helps the air of isodose is provided to each test cabinet 108.For example, one or more changed course devices 328 can be set, flow with the air in the control downstream chamber 320.

Air circulator 232 can comprise one or more flow control apparatus 330.For example, can comprise flow control apparatus 330 with one or more changed course devices 328.Changed course device 328 can comprise surface or the volume that forms the contraction flow region in the downstream chamber 320.In addition, changed course device 328 can be disposed in 324 downstream.The changed course device 328 that comprises contraction flow region forms the zone that pressure rises, and this zone has promoted to flow at the air that passes through air outlet slit 324 of the direct upstream end of changed course device 328.Therefore, changed course device 328 can flow in order to the air that equilibrates to test cabinet 108.Other the embodiment according to another, changed course device 328 can comprise the contraction flow region with movable surfaces 334, to allow the change in size of the contraction flow region in the downstream chamber 320, flows thereby change the air that passes through near air outlet slit 324.Alternatively or additionally, air outlet slit 324 can comprise the flow control apparatus 330 of valve or grid form, described flow control apparatus can be conditioned with the air of control by air outlet slit 324 and flow.

According to other embodiment, downstream chamber 320 can have along the downstream chamber 320 length and keep the constant degree of depth.According to such embodiment, flowing to each test cabinet 108 interior air from downstream chamber 320 can be by the changed course device, air damper, valve or 330 control of other flow control apparatus that are arranged in fan 304 and the one or more test cabinet 108.For example, with can be than having bigger throttling relatively with the related flow control apparatus 330 of the outlet 324 of the first outlet downstream part near the related flow control apparatus 330 of the outlet 324 of fan 304.The littler area of area that for example, can have the air outlet slit 324 more farther relatively than distance fan 304 apart from fan 304 relative nearer outlets 324.By constructing flow control apparatus 330 so in a different manner, can make the flow equalization of each chamber 108, be positioned at diverse location even supply the outlet 324 of each test cabinet 108 with respect to fan 304.According to another embodiment, flow control apparatus 330 can comprise variable flow control apparatus 330.In addition, variable flow control apparatus 330 can be subjected to ACTIVE CONTROL.For example, initiatively flow control apparatus 330 can comprise the device 328 that initiatively alters course, and the device 328 that wherein alters course has the surface 334 movable with respect near outlet 324.Especially, move, can increase or reduce the zone of downstream chamber 320 by making this surface.This allows to regulate flowing by one or more outlets 324 conversely.As another example, flow control apparatus 330 can comprise variable air damper.

Fig. 4 A is the front view according to the part of the used air circulator 232 of the product test system 100 of another illustrative embodiments.In this embodiment, for each row test cabinet 108 is provided with air intake 236, and air outlet slit 324 is set for each test cabinet 108.In addition, air circulator 232 comprises first 320a of downstream chamber and second 320b of downstream chamber.More particularly, first 320a of downstream chamber is related with the first row test cabinet 108, and second 320b of downstream chamber is related with secondary series test cabinet 108.Product test system 100 can comprise two

fan

304a and 304b, and each fan 304 can supply air to one among 320a of downstream chamber and the 320b.Therefore, each 320a of downstream chamber can be related with fan 304 with 320b.Two fans 304 can be from public inlet plenum 240 extracting airs.Alternatively, inlet plenum 240 can be divided into the first inlet plenum 240a and the second inlet plenum 240b.In the situation of inlet plenum 240a that separation is provided and 240b, they all can hold the thermal control element 306a and the 306b of separation, the heater 308a that described thermal control element comprises separation and 308b and/or the cooling device 312a and the 312b that separate.Perhaps public inlet plenum 240 can hold the thermal control element 306a and the 306b of separation, and both serve relevant 320a of downstream chamber and 320b fully or mainly.In addition, the thermal control element 306a and the 306b of separation can be controlled respectively, provide different heat or the amount of cooling water of adding with the test cabinet 108 to different lines.For example, shown embodiment can comprise two tangential fans 304, one of them fan 304a supplies air to the first row test cabinet 108 via first 320a of downstream chamber, and the second fan 304b supplies air to secondary series test cabinet 108 via second 320b of downstream chamber.In addition, each

fan

304a and 304b can be subjected to independently controlling, and arrive different 320a of downstream chamber and 320b so that different air capacities to be provided.By way of parenthesis, each 320a of downstream chamber and 320b can comprise one or more flow control apparatus 330.For example, the area of outlet 324 can change with the distance of distance inlet plenum 240.In addition, one or more flow control apparatus 330 can comprise variset.For example, changed course device 328 and/or export 324 and can operate, with optionally change through or air by flow control apparatus 330 flow.In the situation that variable flow control apparatus 330 is provided, described flow control apparatus can be subjected to ACTIVE CONTROL.In addition, related with first 320a of downstream chamber flow control apparatus 330 can be controlled with the flow control apparatus 330 that is associated with second 320b of downstream chamber with being separated.The increase of the distance of the air that the width of downstream chamber 320 and/or the degree of depth can be used to supply weather control with distance fan 304 of 320 to the downstream chamber reduces.Alternatively, for example in the situation that comprises changed course device 328 or other flow control apparatus 330, it is constant that the degree of depth of downstream chamber 320 and width can keep.

Fig. 4 B is the front view according to the part of the used air circulator 232 of the product test system 100 of illustrative embodiments.In this embodiment, for each row test cabinet 108 air intake 236 is set.In addition, for each row test cabinet 108 air outlet slit 324 is set.Therefore, the air circulator in the present embodiment 232 comprises air intake 236 and the air outlet slit 324 that usually is arranged to two parallel columns.In this example, the width W of downstream chamber 320 is constant.According to other embodiment, this width W can increase with the distance of distance fan 304 and reduce.Therefore, no matter whether the width W and/or the depth d of downstream chamber reduce, the volume of downstream chamber can increase with the distance of distance fan 304 and reduce.Although air intake 236 can be arranged to parallel row with air outlet slit 324, the thermal control element 306 in fan 304, inlet plenum 240 and the inlet plenum 240 can relative air circulator 232 be shared.Therefore, these shared parts of air circulator 232 can be supplied the test cabinet 108 of the air of thermal control to system 100.

Fig. 4 C is the front schematic view according to shaking platform assembly 208 in the product test system 100 of another embodiment.In this embodiment, each shaking platform assembly 208 is configured to and utilizes sliding part 207 to load product with uninstalling system 100 build-in tests.Be arranged with each shaking platform assembly 208 corresponding sliding part 207 and make assembly 208 in system 100, can outwards slide at least.Sliding part 207 is slide plates, but term " sliding part " also comprises this equipment herein, and this equipment comprises is convenient to linear bearing, roll, wheel hub and the similar devices that the transverse movement of shaking platform assembly entered or left system 100.In Fig. 4 C, show pair of sliders 207 for each assembly 208, but some embodiment can only use a sliding part 207; And independent sliding part 207 can advantageously be installed with other structures, for example installs from the rear surface of system 100.Sliding part 207 can also be configured to make shaking platform assembly 208 to remove from system 100 fully.Use sliding part for example to help entering shaking platform 212(, as shown in Figure 2), thus convenient and loading and unloading test cabinet 108 quickly.In some embodiments, sliding part 207 can also be configured to when shaking platform assembly 208 is regained from system 100 fully and make each shaking platform assembly 208 downward-sloping further to be convenient to enter shaking platform 212.In addition, in some embodiments, test macro 100 can comprise installed part, when shaking platform assembly 208 is positioned at test macro 100 fully, installed part is mounted to test macro 100 securely with each shaking platform assembly 208, discharge from sliding part 207, make the moving-member of sliding part 207 or frailish parts during vibration-testing, can not become tired or introduce beyond thought vibration.In these embodiments, in the time of in shaking platform 212 is installed to system 100, sliding part 207 can keep the one or more couplings in vibration component 208, sidewall 228 and the center wall 230, perhaps can remove sliding part 207.

Can understand after considering the disclosure as those skilled in the art, the layout of air circulator 232 can change, to hold the structure of different test cabinet 108.The structure of shaking platform assembly 208 and its corresponding air intake 236 and air outlet slit 324 can correspondingly change thus.For example, test cabinet 108 (for example can be organized into row, each row is made up of at least two test cabinets 108, a test cabinet is arranged in the top of another test cabinet), make air circulator 232 comprise at least one air intake 236 that is used for each row test cabinet 108 and at least one air outlet slit 324 that is used for each test cabinet 108.Alternatively, test cabinet 108 can be organized and embark on journey or son row (for example, each row is made up of at least two test cabinets 108, and contiguous another test cabinet of each test cabinet is arranged).And test cabinet 108 does not need in the horizontal direction towards its shaking platform 212; Shaking platform the direction vertical and diagonal angle is also expected.

Fig. 4 D shows some above-mentioned embodiments.Fig. 4 D is compared with Fig. 4 C, two chambers 108 that comprise the shaking platform assembly 208 that it is associated have been removed, and substitute by two chambers 108 ' that comprise the shaking platform assembly 208 ' that it is associated, and two chambers 108 ' are disposed adjacent one another, thereby produce the delegation chamber.In addition, Fig. 4 D shows the shaking platform 212 that is associated with each shaking platform assembly 208,208 '.The shaking platform that is associated with shaking platform assembly 208 ' have vertical towards but not level towards shaking platform 212.Correspondingly, the actuator in the shaking platform assembly 208 ' from sidepiece but not from bottom influences its shaking platform that is associated.The vertical layout of shaking platform assembly 208 ' can be held more multicell so that the rack of system 100 is compared with other possibility situations.

Fig. 4 E is the front view according to the product test system 100 of embodiment, and wherein product test system 100 has the removable row of being made up of chamber 108 209.In Fig. 4 E, removable row 209 comprise four chambers 108, and each chamber is associated with shaking platform assembly 208, as shown in the figure; Yet removable row 209 can comprise the chamber of any amount.Sliding part 207 is convenient to be positioned at removable row 209 in the system 100 and/or remove from system 100, and as mentioned above, after placing removable row 209 in the system 100, can remove sliding part 207.

Fig. 4 F is the front view according to the product test system shown in Fig. 4 E of embodiment, and this product test system has removed removable row 209 and utilized product frame 213 to substitute.Sliding part 207 helps making product frame 213 to be positioned in the system 100 and/or removes from system 100, and can remove sliding part 207 after product frame 213 being placed in the system 100, as mentioned above.By applying thermal stress but not vibration, product frame 213 can be used for product to be measured or to be shielded.Skilled person will appreciate that, test products (does not for example vibrate in system 100, on product frame 213), simultaneously like products carries out vibration-testing (for example, use in the same system 100 chamber 108) and helps clear and definite comparative heat stress to the influence of reliability and the vibration influence to reliability under identical thermal environment.In embodiment, product frame 213 can adopt shape and/or the size in the system of being suitable for use in 100, to replace chamber 108 or its combination of any amount.In addition, product frame 213 makes it possible in system 100, by removing by actuator, its supporting member and pipeline and the cover that is associated or other air around the occupied volume of part, utilizes product to fill most of available volume in the test macro 100.Be used for selection that the system 100 of the hot test space only breaks Re-Jia-vibration-testing space and strengthened the power of test of detecting large volume environment system 100 and flexible greatly, as being required to support to be used for the HASA program of a large amount of manufacturings of multiple product lines.

Fig. 5 A to Fig. 5 G shows according to different views some embodiment, that can be included in the shaking platform assembly 208 in the test macro 100.Fig. 5 A to Fig. 5 G shows shaking platform 212, and this shaking platform 212 comprises that sealing plate 211, the first sides or the installation surface 214 that have first side or surface 214 is installed can comprise a plurality of fixtures or fastening point 216.Fig. 5 F and Fig. 5 G show framework 211 ', and framework 211 ' is configured to the sealed fixing device pallet 218 that can be mounted on it with product and is connected.

A plurality of hammers or actuator 520 are interconnected to second side 504 of shaking platform 212.Actuator 520 can be the actuator of any type.For example, can use pneumatic operation actuator, electro-motor actuator, hydraulic actuator and/or can quicken shaking platform 212 or to the device of any other type of shaking platform 212 application of forces and/or other mechanical energies.According to some embodiment, actuator 520 be configured to provide shaking platform 212 about the translation of x axle, y axle and z axle and rotate both motion.Therefore, shaking platform assembly 208 can provide the platform motion with six degree of freedom.As shown in Fig. 5 D and Fig. 5 E, shaking platform bearing 524 can provide contiguous or towards the support that is used for spring 508 or the pillar 528 of second side 504 of shaking platform 212.Can understand after considering the disclosure as those skilled in the art, shaking platform bearing 524 is fixed to rack 104.

Similar with the above description that combines Fig. 2, though shaking platform 212 is shown as rectangle in Fig. 5 A-5E, but expectedly be, shaking platform 212, plate 211 and/or framework 211 ' can be bent, are shaped or increase the weight of, to change the frequency response of whole shaking platform 212 when loading product and starting.

In the embodiment in Fig. 5 A-5E, plate 211 is airtight, makes to be installed in the air separation of product ambient air below plate 211 of installing on the surface 214, helps exhaust by making actuator and product and isolates and carry out temperature and control, and is as described below.Shaking platform 212 by one or more support members or platform mounting spring 508 be supported on surface 214 relative second sides 504 are installed on, wherein support member or platform mounting spring 508 are installed within the edge of shaking platform 212.Spring can be any combination of compression-type, extension type or blade profile.For example, spring can be positioned at the center of the point 512 at the angle that forms rectangle, and this rectangle itself is positioned at by the center (seeing Fig. 5 B) that surface 214 rectangles that limit 514 are installed, and defines and equal to be no more than 50% the zone that surperficial 214 area is installed.By for spring 508 provides inner installation site, be installed in the peripheral shaking platform of installing of the peripheral or close platform of platform with spring and compare, shaking platform 212 can better support Devices to test.For example, mounting spring 508 is placed the platform that allows near the center of shaking platform 212 more, this can open the free degree at the Machine Design and/or the improvement aspect of performance of shaking platform 212.Particularly, the platform that property firm in structure is lower allows shaking platform 212 to realize spectral response widely, has particularly improved the power of 1000Hz lower frequency.

The inside of spring 508 is installed and is also helped that shaking platform 21 comprises framework 211 ' but not the embodiment of plate 2112.Fig. 5 F shows framework 211 ', and this framework 211 ' is configured to the airtight fixture pallet 218 that product can be installed thereon and is connected.Fig. 5 F comprises the shade of framework 211 ', so that pass the clear of framework 211 ' than macropore, and only airtight fixture pallet 218 is expressed as empty profile, and make that the feature of passing through of framework 211 ' is visual.Fig. 5 F is also shown in broken lines is used for the attachment point 530 of the actuator and the spring of support frame 211 ', and the position class shown in position and Fig. 5 B seemingly.Not shown among the peripheral edge of framework 211 ' and the platform cover 224(Fig. 5 F, see Fig. 3 and Fig. 5 G) be connected, but framework 211 ' is because the hole of therefrom passing rather than airtight.When the peripheral edge of fixture pallet 218 (for example is connected with framework 211 ', by fixture pallet 218 being fixed to framework 211 ' in fixture or fastening point 216 places) time, fixture pallet 218 and framework 211 ' are finished seal 217, thereby platform cover, framework 211 ' and fixture pallet 218 form continuous airtight surface.Though seal 217 is shown in the inside of fastening point 216, but be contemplated that, seal 217 can also be formed on the outside of fastening point 216, and the rectangular shape shown in being not limited to, and can be the arbitrary shape that framework 211 ' and fixture pallet 218 are realized.Seal 217 can contact with fixture pallet 218 by the flat surfaces of framework 211 ' and simple formation, and the feature that liner for example etc. perhaps can be provided is to help gas-tight seal 217.Dotted line 5G-5G represents the plane by the view of Fig. 5 F, and this plane is shown in Fig. 5 G.

Along the line 5G-5G of Fig. 5 F, Fig. 5 G schematically shows fixture pallet 218 and how to realize seal 217 with framework 211 ', and show can be used in to the product of testing in the system 100 10 install fixing.Fig. 5 G shows four parts of framework 211 ', as the line 5G-5G finding in along Fig. 5 F.Shown in Fig. 5 G, the outermost portion of framework 211 ' seals the edge of

platform cover part

224 and 224 '.Therefore, by the outermost portion to 211 ' seals at seal 217 places, fixture pallet 218 is finished the continuous gas-tight seal from platform cover part 224 to platform cover part 224 '.Continuous sealing makes air and the air separation above the pallet 218 below the pallet 218, thereby not with actuator (for example, above-mentioned actuator 520) under the situation that the exhaust of sending or other gas produce to disturb, can be to controlling around product 10,10 ' air themperature.Fixture pallet 218 can be thought with the use of framework 211 ' and is divided into the shaking platform assembly two-layer.The upper strata comprises that fixture pallet 218, fixture 540(will be described below) and the product that is attached to this upper strata.Lower floor comprises framework 211 ', and framework 211 ' links with platform cover part 224, actuator 520 and the pipeline that is associated thereof or line, shaking platform bearing 524 and support or pillar 528 that this framework 211 ' also is equipped with spring 508 and is associated.Will be under air on the fixture pallet 218 and the fixture pallet 218 and around the two-tiered approach of the air separation of actuator, in production environment, be provided for loading fast and the design of the fixture of unloading in the free degree and flexibility.Two-tiered approach also provides the design freedom that can be used for adjusting subtly by the vibration performance of framework 211 ', fixture pallet 218, fixture 540 and the top formed mechanical system of product that loads.That is to say, when shaking platform comprises plate 211, the rigidity of plate 211 itself and size can limit attainable vibration mode when fixture and product are attached, and framework 211 ' can allow the user of system 100 product tray 218 and fixture 540 to be set so that whole mechanical system supports other mode can not realize vibration mode.

Fig. 5 G also schematically shows and can be used for

product

10,10 ', 10 " (being referred to as product 10) be fixed to the fixture 540,540 ', 540 of plate 211 ", 540 " ' (being referred to as fixture 540).In other embodiments, it will be appreciated by persons skilled in the art that when not using fixture pallet 218 that fixture 540 can for example be fixed to plate 211(with product 10, the plate 211 shown in Fig. 5 A to Fig. 5 E).Fixture 540 can comprise the hand welding that is configured to the shape and size of product 10 coupling, magnetic forceps, vacuum forceps, bolt, door bolt, hinge, button, magnet, electromagnet, electric actuator, spring is equipped with the equipment of spring, and element such as piece, and/or these combination of elements.For example, the fixture shown in Fig. 5 G 540 is that product is remained on pincers on the device pallet 218; Fixture 540 " be the piece that the size and dimension with product 10 ' is complementary, and fixture 540 ' can form by bolt, this bolt on the either side of product 10 ' bolting to fixture pallet 218.In another embodiment, fixture 540 " ' be the two-piece type fixture, at 542 places hinged and at 543 places about product 10 " snapping, and fix against plate 211 by the vacuum that the vacuum line 547 by accessory 545 is applied by the downside of slave plate 211.The applicant comprises along the possibility of the vacuum hole that passes this plate 211 definition of " airtight pane 211 ", need only this hole or (for example be connected to vacuum line, shown vacuum line 547), it is airtight or (b) being added a cover so that plate 211 is kept from a side to opposite side.It should be understood that the arbitrary of equipment that vacuum, pneumatic, electromagnetism and/or electro-motor activate or all can in fixture 540, use or make product 10 be loaded on the fixture 218 automatically and/or directly be loaded on the shaking platform 212 helping together with fixture 540 uses.

As mentioned above, each shaking platform assembly 208 can with the cover 224 related (as shown in Figure 3), (for example make when shaking platform has sealing plate 211, shown in Fig. 5 A to Fig. 5 E) or when sealed fixing device pallet 218 finish framework 211 ' be sealed across the open area time (shown in Fig. 5 F and Fig. 5 G), shaking platform assembly 208 forms and holds spring 504 that supports shaking platform 212 and the enclosed volume that shaking platform 212 is applied the actuator 520 of vibration.Therefore, by the chamber atmosphere of air circulator 232 supplies and around the actuator 520 of shaking platform and the air insulated of spring 508.Therefore, comprise in the situation of beche that the air of discharging from actuator 520 does not mix with chamber atmosphere, influences the temperature of chamber atmosphere at actuator 520.As shown in Figure 3, cover 224 can comprise front panel or forward part 226.For the test cabinet 108 that is positioned at another test cabinet 108 tops, cover 224 can also comprise that bottom panel or bottom divide 332(to see Fig. 3).In addition, bottom panel or bottom divide 332 can be separated components, surface that perhaps can involving vibrations stage support 524.

Fig. 6 A is the block diagram that illustrates according to the product test system 100 of embodiment.As shown in Figure 6, product test system 100 comprises air circulator 232, shaking platform actuation subsystem 604 and RACS 608.RACS 608 receives input 612, and input 612 is supplied to controller 616, with the aspect of the operation of control product test system 100.Controller 616 can be used as or comprise optional vibrating controller 650, optional temperature controller 660, or comprises the two.(for clear explanation, in Fig. 6 A and Fig. 6 B, the mark of vibrating controller 650 and temperature controller 660 is abbreviated as " VIBE " and " TEMP " respectively respectively).

In embodiment, controller 616 involving vibrations controllers 650 are used for the vibration that is applied to product to be measured by shaking platform 212 is controlled.For example, vibrating controller 650 can be concurrently controlled the vibration of all platforms 212 of system 100, perhaps can to the subclass of shaking platform 212, zone or separately platform control, as will be described hereinafter.

Input 612 can comprise the input that the user keys in by input unit, can also comprise the control parameter of sequencing.Controller 616 can comprise general purpose programmable processors, have the controller of integrated memory or other processor that is used to execute instruction or computer implemented device.Can adopt following form by the instruction that controller 616 is carried out: the user imports, is stored in the instruction of the sequencing in the memory or the firmware of storing and/or encoding as the data of software.More particularly, controller 616 can be carried out the control control algolithm, and described control algolithm realizes or comprises proportional-integral-differential (PID) control system.In addition, controller 616 can comprise a plurality of processors, memory device and/or logical device.As general description here, RACS 608 can provide a signal to air circulator 232 and shaking platform actuating system 604.In addition, RACS 608 can be from the sensor received signal related with air circulator 232 and/or shaking platform actuation subsystem 604.RACS 608 can also be connected with outer computer by wired or wireless connection 670; Connecting 670 for example can be that network connects (for example, the internet), makes system 100, RACS 608, controller 616, chamber 108 and parts thereof to control by network.

The control signal that is provided to air circulator 232 by RACS 608 comprises the signal that is provided to the thermal control element 306 that is arranged in inlet plenum 240.Especially, the control signal that is provided by control system 608 can be instructed the air in thermal control element 306 heating or the cooling inlet plenum 240.RACS 608 can also comprise the control signal in order to the operation of control fan 304.In addition, RACS 608 can provide control signal with active flow control apparatus 330, and described flow control apparatus includes but not limited to variable outlet 324, variable changed course device 328 or variable air draught adjuster 606.As shown in Fig. 6 A, the air of air intake 236 suctions by air circulator 232 is received in the inlet plenum 240, and wherein said air can be by 306 heating of thermal control element or cooling under the instruction of RACS 608.In addition, air is aspirated in the mode that strides across thermal control element 306 by air intake 236 and inlet plenum 240 by fan 304.The air of heating or cooling is delivered to downstream chamber 320 by fan 304 then.From the downstream chamber 320, air passes air outlet slit 324 and arrives each test cabinets 108.In the example shown, supply air in downstream chamber 320 are to the first outlet 324a related with the first test cabinet 108a, with the related second outlet 324b of the second test cabinet 108b, export 324n with related n of n test cabinet 108n.Therefore, the air of heating or cooling is provided for a plurality of test cabinets 108.In addition, air circulator 232 can be configured such that air heating or cooling is supplied to the test cabinet 108 of arbitrary number.The air that is provided to test cabinet 108 is sucked by air intlet 236 gets back to inlet plenum 240.Alternatively or additionally, air circulator 232 can make the air of surrounding environment enter or release air into surrounding environment, with the stress level in the control test cabinet 108.

Air circulator 232 can be provided by the relevant feedback of control signal that provides with RACS 608; This feedback can be by controller 616 and/or optionally temperature controller 660 execution wherein.Especially, one or more test cabinets 108 for example can comprise temperature sensor 620, can send the thermocouple of temperature signal to controller 616.Controller 616(or optional wherein temperature controller 660) can utilize the information that provides by temperature sensor 620 to control thermal control element 306, fan 304 and/or flow control apparatus 330 initiatively about the temperature of test cabinet 108, make air be provided to test cabinet 108 with desired temperature.In the drawings, each test cabinet among temperature sensor 620a, 620b and 620n and the first test cabinet 108a, the second test cabinet 108b and n the test cabinet 108n is related.Therefore, controller 616 can utilize the round-the-clock temperature signal that provides in the temperature sensor 620 to control the operation of air circulator 232.Alternatively, can be used by controller 616 by the mean temperature of temperature sensor 620 sensings, this controller 616 can be in response to being operated by any signal that provides in the temperature sensor 620.Alternatively, temperature sensor 620 only needs to be arranged among in the test cabinet 108 one, can be in order to control air circulator 232 from the signal that this temperature sensor 620 sends.When the sign of chamber illustrates it aspect hot when extremely similar each other, utilize single temperature sensor to be provided for that the feedback of all chambers is useful in the system.This can regard " master/slave " control as and arrange that wherein measured chamber is a main chamber, and other chambers are from chamber.Other the embodiment according to another, temperature sensor 620 can be arranged in another part of air circulator 232, such as being arranged on inlet plenum 240 or being arranged in the downstream chamber 320.Other the embodiment according to another, for example when air outlet slit 324 and/or changed course device 328 are included as air circulator 232 a part of, thermocouple can be arranged in a plurality of chambers 108 or a plurality of positions in each chamber 108, makes controller 616 can operate to control variable air outlet slit 324 and/or changed course device 328.In addition, variable air outlet slit 324 and/or variable changed course device 328 can be controlled independently by controller 616, with other control of branch for the air themperature in the different test cabinets 108.Can also comprise other sensor, with the signal that provides the control used by controller 616 to be associated with air circulator 232.For example, one or more pressure sensors can be arranged in the air circulator 232, to provide a signal to controller 616.

Controller 616 and/or optional temperature controller 650 can also be operated the operation with control shaking platform 208.More particularly, in the example shown in Fig. 6 A, shaking platform actuation subsystem 604 comprises pneumatic system.Therefore, supply air source 624 provides control air to one group of valve 628.For example, can be for being included in the every group of actuator 520 in the shaking platform assembly 208 with certain orientation, or be every group of actuator 520 in the given row of chamber 108, or be other predetermined groups of chamber 108 or the actuator in the zone, valve 628 is set.Under extreme case, can provide valve 628 for the actuator 520 of each shaking platform 208.Header 632 is assigned to those actuators 520 with valve 628 air supplied then.As skilled in the art will understand.The operation of actuator 520 applies acceleration to platform 212.The gas that actuator 520 is discharged can be collected in the exhaust chamber 636.Air from exhaust chamber 636 can be sent to surrounding environment.Other the embodiment according to another, each exhaust line can be in order to directly to export to surrounding environment with exhaust from actuator 520.

One or more shaking platforms 212 can have the one or more accelerometers 640 that are mounted on it.In embodiment, accelerometer 640 is three axis accelerometers, and this 3-axis acceleration is counted its shaking platform the three-dimensional vibrating feedback is provided.In other embodiments, accelerometer 640 is linear accelerometers that feedback is provided on an axle; In this embodiment, each shaking platform 212 can utilize two or three accelerometers 640 that diaxon or three feedbacks are provided.(for illustrate clear for the purpose of, some example of the temperature signal that is provided by temperature sensor 620 or accelerometer 640 is not shown in Fig. 6 A.）

Therefore, as shown in Figure 6A, each shaking platform 212 can be related with accelerometer (perhaps a plurality of linear accelerometer) 640a, 640b and 640n respectively.Signal from each accelerometer 640 can be provided to controller 616 then, and the mean value of a selecteed signal or described signal can be used by controller 616 in the described signal.According to some embodiment, only needs in the platform 212 are related with accelerometer 640.

By Fig. 6 A and description thereof, it should be appreciated by those skilled in the art, RACS 608, shaking platform actuation subsystem 604 and air circulator 232 be the interconnection but separable system.Because they are separable, so a RACS 608 can be controlled several shaking platform actuation subsystem 604 and/or air circulator 232; This subsystem 604 can be contained in identical rack 104 or a plurality of rack 104 with air circulator 232, as described now.

The schematically illustrated control that comprises according to embodiment of Fig. 6 B is arranged in the product test system 100 of a RACS 608 of the air circulator 232 of a plurality of racks 104 and platform actuation subsystem 604.As shown in Figure 6A, RACS 608 comprises input 612 and controller 616, controller 616 involving vibrations controllers 650 and temperature controller 660.As shown in the figure, the temperature and/or the vibration of the chamber in RACS 608 control rack 104 (1), rack 104 (2) and the racks 104 (3).Each rack 104 holds one or more ticker systems and/or one or more air circulator 232.Rack 104 (1) holds an air circulator 232 and an actuation subsystem 604.Though be not shown to scale, but in rack 104 (1), air circulator 232 and actuation subsystem 604 are shown relatively large, will be suitable for use in big capacity/low HASA program (that is to say the part of a plurality of same types of HASA program single sampling inspection) of mixing production line like this.Rack 104 (2) holds two air circulators 232, the air themperature that one of them control is associated with two actuation subsystem 604, wherein another and any actuation subsystem 604 irrelevant (for example, for temperature control but one or more chambers of not using vibration).Rack 104 (2) can be suitable for use in the HASA program (for example, to inspect a plurality of different products by random samples) that high power capacity/height mixes production line.Rack 104 (3) holds an air circulator 232 and an actuation subsystem 604.Though be not shown to scale, but in rack 104 (3), air circulator 232 is shown relative less with actuation subsystem 604, to be suitable for use in like this, HALT program (that is to say that HALT is used to the initial reliability testing of new product) as the low capacity/low married operation of research and development of products operation.Each air circulator 232 and actuation subsystem 604 receive the control signal of self-controller 616, its unification for example is shown control signal 680(, as shown in Figure 6A, the signal of control thermal control element 306, inlet plenum 240, fan 304, supply air source 624 and valve 628).Each air circulator 232 and actuation subsystem 604 also send signal to controller 616, and its unification for example is shown sensor signal 690(, as shown in Figure 6A, and from the signal of temperature sensor 620 and accelerometer 640).

Figure 7 illustrates the method that is used to provide the product test system according to embodiment.This method can be associated by the control algolithm of being carried out by controller 616.According to this method, a plurality of test cabinets 108 are disposed in the rack 104 (step 704).Each test cabinet is related with shaking platform assembly 208.In addition, described rack comprises air circulator 232, and described air circulator 232 comprises at least one inlet 236 and at least one air outlet slit 324 that is communicated with each test cabinet 108.Cabinet door 204 is opened to enter a plurality of test cabinet 108(steps 708).At least one device under test or product are arranged and are interconnected to each shaking platform 208(step 712 then).After device under test all had been interconnected to shaking platform 208, cabinet door 204 was closed (step 716).

Then can begin the operation (step 720) of air circulator.Especially, fan 304 can be opened, with suction air by air intlet 236, by inlet plenum 240 and stride across or through thermal control element 306.Then, air current heating or cooling is forced to 320 flow further downstream along the downstream chamber, flows out air outlet slit 324 and flows into test cabinet 108.Forced air flow goes out air outlet slit 324 can comprise the air diverts that makes in the downstream chamber 320.More particularly, steering gear can be arranged in the downstream chamber 320, and the downstream of air outlet slit 324 is to form contraction flow region, in order to promote air flowing by air outlet slit 324.Use steering gear 328 to make the equalization of pressure at air outlet slit 324 places, to provide identical or approximately uniform air to flow and hot state or the pressure device under test in each test cabinet 108.Alternatively or additionally, can provide air outlet slit 324 and/or the air damper 606 or other the flow control apparatus 330 that can be actively controlled.

The operation of shaking platform 208 can also begin (step 724) after door 204 is closed.According to some embodiment, shaking platform 208 can make attached device quicken, and attached device is quickened with six degree of freedom.According to these and other embodiments, the acceleration that whole shaking platforms 208 can be operated to apply same train arrives attached device, makes identical stress be applied to device.The control of shaking platform can be associated with the information that accelerometer provides.Accelerometer can be attached in the shaking platform 208.Alternatively, more than one shaking platform 208 or even whole shaking platforms 208 can comprise accelerometer.

In step 728, whether finish the running time of test in the step that can determine carrying out or pre-burning (burn).If finish running time, then handle and to finish.Otherwise processing will continue, and reach default running time (step 732) up to.

Fig. 8 is the block diagram according to some parts of the product test system 100 of other embodiment.More particularly, Fig. 8 shows the air circulator 232 of the illustrative embodiments of many test cabinets 108 systems 100, and wherein system 100 has the first air circulator 232a and the second air circulator 232b.The first air circulator 232a can be related with the first row test cabinet 108, and the second air circulator 232b can be related with secondary series test cabinet 108.In the present embodiment, show shared RACS 608.RACS 608 receives the input 612 that is supplied to controller 616.Therefore, in some aspects, this RACS 608 is similar with the RACS 608 in the embodiment that comprises single air circulator 232.For controlling a plurality of air circulator 232a and the 232b in the embodiment shown in Figure 8 individually, controller 616 can be carried out concurrency control algorithm.These parallel algorithms can realize by the processor that separates, perhaps realize by the single processor of realizing a plurality of virtual machines.Other the embodiment according to another, controller 616 can be realized single processor algorithm, this algorithm provides the independent control for the various parts of air circulator 232a and 232b.For example, the algorithm that controller 616 is carried out can be realized PID control system or algorithm, this control system or algorithm response are operated in the temperature information that is provided by temperature sensor 620a, so that thermal control element 306a and 306b operation, thereby reduce or eliminate in first district that comprises the one or more test cabinets 108 of first row and comprise temperature difference between second district of the one or more test cabinets of secondary series.As another example, pid control algorithm can use temperature information from the temperature sensor 620 in the first row test cabinet 108 as elementary input, then can be by the selection of the heater 308 related with test cabinet 108 row being operated and being added heat with impulse form, make the temperature sensor 620 related with first row compare, the temperature sensor 620 related with secondary series has lower temperature.Therefore, the difference algorithm that comprises in the main algorithm can make thermal control element 306 related with the row in the multiple row test cabinet 108 and associated air circulator 232a and the operation of 232b difference ground.

The first air circulator 232a that provides and the second air circulator 232b can provide the thermal control of enhancing about the various test cabinets 108 that comprise in the system 100.For example, for each

air circulator

232a and 232b, can control

thermal control element

306a and 306b,

fan

304a and 304b independently.For example, related at the first air circulator 232a with the first row test cabinet 108, and in the related situation of the second air circulator 232b and secondary series test cabinet 108, can come control system 100 by the zone, wherein first district comprises that first row test cabinet 108, the second districts related with the first air circulator 232a are associated with the secondary series test cabinet 108 related with the second air circulator 232b.Other the embodiment according to another, air outlet slit 324 can comprise the flow control apparatus 330 of ACTIVE CONTROL.These air outlet slits 324 can be by controller 616 control respectively in response to the temperature sensor 620 related with those test cabinets 108, to realize and to keep desired temperature in each test cabinet 108.Therefore, can adapt to the different thermic loads and/or the hear rate of arranging generation by the difference of the device under test in the test cabinet 108.

Fig. 9 and Figure 10 show the outlet 324 of the test cabinet 108 that comprises flow control apparatus 330, and wherein said flow control apparatus 330 has grid or passage assembly 904.Grid component 904 can comprise each fluidic or blade 908, arrives associated test cabinet 108 in order to the air guide of flow that downstream chamber 320 is provided.Especially, the embodiment shown in Fig. 9 has been integrated the blade 908 of vertical alignment, so that the air along continuous straight runs turns to.Figure 10 shows the air outlet slit 324 that comprises the grid component 904 that has blade 908, and wherein blade 908 is flowed to control air along vertical direction in test cabinet 108 by horizontally disposed.The air that each blade 908 can be adjusted to provide the particular configuration, number and/or the layout that are suitable for device under test flows, and suitably flows uniformly and/or temperature thereby provide in the test cabinet 108 that is associated.This control can manually be carried out or be undertaken by controller 616 instructions.For example, blade 908 can be related with motor or other control actuator in response to the control command operation that is provided by controller 616.

According to other embodiment, grid component 904 can comprise confinement plate and/or vertically, flatly, angled ground or the blade 908 arranged agley.Outside the control flow direction, blade 908 can be in order to providing the different air mass flow zones of different to the test cabinet 108 that is associated, and flow total amount in order to the air of control by test cabinet.

Figure 11 is Fig. 1,2,3, and 4A-4F, the schematic diagram of 6A, 6B and 8 product test system 100, it has shown other details of exemplary temperature control in the test cabinet 108.The controller 616 that illustrates has memory 1102, processor 112 and spectrum clock 1114.Memory 1102 can be represented one or both in volatile memory (for example, random access memory) and the nonvolatile memory (for example, read-only storage, FLASH memory, disc driver).Spectrum clock 1114 for example is the timer of controller 616, and the control cycle of the TEMPERATURE SPECTROSCOPY of its expression system 100 that periodically expires (for example, qualifying part) is finished, and new control cycle begins.Control cycle for example is one second time.The spectrum 1104 of the memory stores that illustrates expectation, daily record data 1106, the spectrum of adjusting 1107 and comprise PID 1108 and the software 1105 of convergence algorithm 1110.Though being shown as, PID 1108 is stored in the memory 1102, but under the situation that does not break away from the scope of the present disclosure, PID 1108 can implement (for example, as hardware, field programmable gate array or other electronic components) at least in part and be controlled by controller 616 in the outside of controller 616.Air circulator 232 comprises temperature throttling element 1116, and not necessarily fan throttling element 1118 and flow throttling element 1120.Each throttling element is the controller that is used for corresponding physical element in the air circulator 232; That is to say temperature throttling element 1116 control (one or more) thermal control elements 306, fan throttling element 1118 control fans 304, and flow throttling element 1120 control (one or more) changeable flow equipment 330.Therefore by the operation of the corresponding physical element of throttling valve adjustment of each enforcement in throttling element 1116,1118 and 1120.And though Figure 11 shows thermal control element 306 and only fan 304 and changeable flow equipment 330, each of these physical element can be to exist with different number shown in Figure 11 in air circulator 232.Processor 1112 executive softwares 1105 are to provide controller 616 function as described below.

The spectrum 1104 of an exemplary expectation illustrates to illustrative in Figure 19, and Figure 19 is the chart 1900 of temperature relative time.In chart 1900, spectrum 1104 limited, test cabinet 108 preferred temperatures in time of solid line 1902 expressions as expectation, and the actual temperature of measuring in the dotted line 1904 expression test cabinets 108.Chart 1900 has been described preferred temperature and the actual temperature during the " RUN ", and it comprises that series of temperature changes, and finishes under the identical temperature of the temperature that brings into operation.Reliability testing usually is included in by vibration or does not have to make product stand repeatedly this " RUN " continuously under the situation of vibration.In chart 1900, can find out, in being expressed as 1906 zone, actual temperature is not mated with preferred temperature, expect the fast of variation over time at this regional temperature, and in being expressed as 1908 zone, before turning back to desired temperatures, temperature has surpassed the desired temperatures variation.

Convergence algorithm 1110 for example is to use the iterative processing of the data of storage in the daily record data 1106, daily record data 1106 comprises one or more in temperature value measured, temperature throttling valve, fan throttling valve and the flow throttling valve of the test cabinet 108 that writes down in the runnings before the system 100, and for example the PID by the temperature error between the chamber temp of measuring is composed with expectation responds and controls.The spectrum 1107 of the spectrum 1104 of the data of storage, expectation and adjustment is based on the time in the daily record data 1106, and convergence algorithm 1110 produces adjustable spectrum 1107 one or more in temperature throttling valve, fan throttling valve and the flow throttling valve are defined as time-based throttling setting, be used for controlling the one or more of thermal control element 306, fan 304 and changeable flow equipment 330, make test cabinet 108 interior actual temperatures follow the spectrum 1104 of expectation.In one embodiment, convergence algorithm 1110 is one or more based on the measurement temperature value of the flow throttling valve that writes down in the running before system 100, fan throttling valve, temperature throttling valve and test cabinet 108, uses linear interpolation to produce the spectrum 1104 of expectation.

In operating process, the limiting temperatures that convergence algorithm 1110 will be expected to compose in 1104 are compared with the measurement temperature of storage in the daily record data 1106, and adjust the throttling setting of storage up or down based on the difference between the two.For example, if the measurement temperature that is stored in the daily record data 1106 of moment is lower than the limiting temperatures of expecting in the spectrum 1104, convergence algorithm 1110 can limit and adjust spectrum 1107 to have the temperature throttling valve so, this temperature throttling valve increases the measurement temperature that (for example, 5%) surpasses storage in the daily record data 1106.Similarly, when temperature composed 1104 above expectation, convergence algorithm 1110 can be regulated temperature throttling (for example, 5%) downwards.Then, convergence algorithm 1110 can be carried out in running subsequently, so that the throttling valve of error still appears in further adjustment.In the operation that limits number of times (for example, three operations) afterwards, the throttling setting of adjusting in the spectrum 1107 is used as one or more basic controlling in thermal control element 306, fan 304 and the changeable flow equipment 330, and one or more PID functions can be with doing the adjusting of basic controlling, to proofread and correct any further deviation with preferred temperature.For example, PID1108 can be used for the variation of the thermal mass of any test products of placement in the test cabinet 108 is adjusted.In one embodiment, call convergence algorithm 1110 and be in the limit standard up to the temperature-responsive of measuring, then do not need throttling valve is further adjusted, and controller 616 utilizes the qualification throttling valve of adjusting spectrum 1107.

The output of controller 616 is controlled in the flow throttling element 1120 of the fan throttling element 1118 of temperature throttling element 1116, fan 304 of thermal control element 306 and changeable flow equipment 330 one or more alternatively.One or more temperature sensors 620 in one or more test cabinets 108 provide the temperature feedback to controller 616, thereby the temperature and the flow rate that allow 616 pairs of controllers to enter the air 1124 of test cabinet 108 are controlled.

The temperature of that controller 616 can use is shared (between test cabinet) 306 pairs of a plurality of test cabinets 108 of thermal control element is controlled, shown in the embodiment of Fig. 6 A, and/or can control a plurality of air circulators 232, wherein each air circulator 232 comprises thermal control element 306 and one or more test cabinet 108.

Figure 12-the 18th, according to the flow chart of embodiment, it shows an illustrative methods 1200 of the temperature in the test cabinet that is used for

control chart

1,2,3,4,6 and 8.For example, method 1200 is carried out in the controller 616 of system 100, and is called in each cycle of expectation spectrum 104.

In step 1202, method 1200 is determined the spectrum temperature of each test cabinet.In an embodiment of step 1202, controller 616 is determined the preferred temperature of test cabinet 108 based on the current period of expectation spectrum 1104.In step 1204, method 1200 reads room temperature.In an embodiment of step 1204, temperature sensor 620 is placed in the specific test cabinet 108, and controller 616 reads the temperature of fc-specific test FC chamber 108 from temperature sensor 620.In another embodiment of step 1204, controller 616 reads temperature from each of a plurality of temperature sensors 620 of being arranged in one or more test cabinets 108, and temperature value measured is got average.

Step 1206 is judged.In step 1206, if method 1200 determines to have finished the above temperature cycle of operation (for example, three operations) of pre-determined number, method 1200 continues step 1220 so; Otherwise method 1200 continues step 1208.

In step 1208, method 1200 is called the temperature throttling submethod 1300 of Figure 13.

Step 1210 is optional.If comprise, then in step 1210, method 1200 is called the fan throttling submethod 1400 of Figure 14.

Step 1212 is optional.If comprise step 1212, method 1200 is called the flow throttling submethod 1500 of Figure 15 so.

Step 1216 is judged.In step 1216, be operation for the first time if method 1200 is determined current operation, method 1200 withdraws from so; Otherwise method 1200 continues step 1218.In step 1218, method 1200 utilizes convergence algorithm to determine to adjust spectrum, and this adjusts the temperature control that spectrum improves test cabinet.In an embodiment of step 1218, controller 616 is carried out convergence algorithm 1110 and is handled daily record data 1106 is expected relatively spectrum 1104, thereby determines the one or more setting in temperature throttling element 1116, fan throttling element 1118 and the flow throttling element 1120 is composed 1107 to form to adjust.

In step 1220, method 1200 is called the temperature control submethod 1600 of the adjustment of Figure 16.

Step 1222 is optional.If comprise, then in step 1222, method 1200 is called the fan control submethod 1700 of the adjustment of Figure 17.

Step 1224 is optional.If comprise, then in step 1224, method 1200 is called the flow-control submethod 1800 of the adjustment of Figure 18.Method 1200 stops then.

Method 1200 repeats when the each run of expectation spectrum 1104, with the temperature in the control test cabinet 108.

In step 1302, submethod 1300 stores the room temperature of measuring in the step 1204 in the daily record data into.In an embodiment of step 1302, controller 616 stores the temperature of measuring from temperature sensor 620 in the step 1204 daily record data 1106 that is associated with the current period of expecting to compose 1104 into.In step 1304, submethod 1300 uses the throttling of PID accounting temperature based on the spectrum temperature of determining in the step 1204 and the temperature of measurement.In an embodiment of step 1304, controller 616 uses processor 1112 to carry out PID1108 based on the temperature of measuring by temperature sensor 620 in the current period of expecting spectrum 1104 and the step 1204, with the temperature throttling of calculating thermal control element 306.

In step 1306, submethod 1300 stores the temperature throttling of calculating in the daily record data into.In an embodiment of step 1306, controller 616 stores the temperature throttling valve that calculates in the step 1304 in the daily record data 1106 relevant with the current period of expecting to compose 1104 into.In step 1308, submethod 1300 is provided with the temperature throttling of thermal control element.In an embodiment of step 1308, controller 616 is provided with temperature throttling 1116 based on the temperature throttling valve that calculates in the step 1304, with the operation of control thermal control element 306.

Submethod 1300 returns then, continues control method 1200.

In step 1402, submethod 1400 uses PID to calculate the fan throttling based on the temperature throttling of determining in the spectrum temperature of determining in the step 1202, the submethod 1300 and the temperature of measurement.In an embodiment of step 1402, controller 616 is based on the temperature of measuring by temperature sensor 620 in temperature throttling valve of determining in the current period of expecting spectrum 1104, the submethod 1300 and the step 1204, use processor 1112 to carry out PID1108, to calculate the fan throttling valve of fan 304.

In step 1404, submethod 1400 stores the fan throttling valve that calculates in the daily record data into.In an embodiment of step 1404, controller 616 stores the fan throttling valve that calculates in the step 1402 in the daily record data 1106 relevant with the current period of expecting to compose 1104 into.In step 1406, submethod 1400 is provided with the fan throttling of fan.In an embodiment of step 1406, controller 616 is provided with fan throttling 1118 based on the fan throttling valve that calculates in the step 1402, with the operation of control fan 304.

Submethod 1400 returns then, continues control method 1200.

In step 1502, submethod 1500 uses the throttling of PID calculated flow rate based on the fan throttling of determining in the temperature throttling of determining in the spectrum temperature of determining in the step 1202, the submethod 1300, the submethod 1400 and the temperature of measurement.In an embodiment of step 1502, controller 616 is based on the temperature of passing through temperature sensor 620 measurements in fan throttling valve of determining in the temperature throttling valve of determining in the current period of expecting spectrum 1104, the submethod 1300, the submethod 1400 and the step 1204, use processor 1112 to carry out PID1108, to calculate the flow throttling valve of changeable flow equipment 330.

In step 1504, submethod 1500 stores the flow throttling valve that calculates in the daily record data into.In an embodiment of step 1504, controller 616 stores the flow throttling valve that calculates in the step 1502 in the daily record data 1106 relevant with the current period of expecting to compose 1104 into.In step 1506, submethod 1500 is provided with the flow throttling of changeable flow equipment.In an embodiment of step 1506, controller 616 is provided with fan throttling 1118 based on the flow throttling valve that calculates in the step 1502, with the operation of control changeable flow equipment 330.

Submethod 1500 returns then, continues control method 1200.

If comprise submethod 1600, submethod 1600 begins to call from the step 1220 of method 1200 so.

In step 1602, submethod 1600 is determined the temperature throttling valve according to adjusting spectrum.In an embodiment of step 1602, controller 616 is determined the temperature throttling valve according to adjusting spectrum 1107.In step 1604, submethod 1600 uses the temperature throttling variable of PID accounting temperature throttling based on the temperature in temperature that writes down in the daily record data and the test cabinet.In an embodiment of step 1604, controller 616 is based on the temperature of the test cabinet 108 of serviceability temperature sensor 620 measurements in temperature that writes down in the step 1302 of submethod 1300 and the step 1204, use processor 1112 to carry out PID 1108, with accounting temperature throttling variate-value.In step 1606, submethod 1600 will output to the thermal control element by temperature throttling variate-value temperature throttling adjustment, step 1602 of step 1604.In an embodiment of step 1606, controller 616 increases to the temperature throttling of determining in the step 1602 with the temperature throttling variate-value of step 1604, and the result is outputed to temperature throttling 1116 with control thermal control element 306.

Submethod 1600 returns then, continues control method 1200.

If comprise submethod 1700, submethod 1700 begins to call from the step 1222 of method 1200 so.

In step 1702, submethod 1700 is determined the fan throttling valve according to adjusting spectrum.In an embodiment of step 1702, controller 616 is determined the fan throttling valve according to adjusting spectrum 1107.In step 1704, submethod 1700 uses PID to calculate the fan throttling variable of fan throttling based on the temperature in temperature that writes down in the daily record data and the test cabinet.In an embodiment of step 1704, controller 616 is based on the temperature of the test cabinet 108 of serviceability temperature sensor 620 measurements in temperature that writes down in the step 1302 of submethod 1300 and the step 1204, use processor 1112 to carry out PID 1108, to calculate fan throttling variate-value.In step 1706, submethod 1700 will output to fan by temperature throttling variate-value fan throttling adjustment, step 1702 of step 1704.In an embodiment of step 1706, controller 616 increases to the fan throttling of determining in the step 1702 with the fan throttling variate-value of step 1704, and the result is outputed to fan throttling 1118 with control fan 304.

Submethod 1700 returns then, continues control method 1200.

If comprise submethod 1800, submethod 1800 begins to call from the step 1224 of method 1200 so.

In step 1802, submethod 1800 is determined the flow throttling valve according to adjusting spectrum.In an embodiment of step 1802, controller 616 is determined the flow throttling valve according to adjusting spectrum 1107.In step 1804, submethod 1800 uses the flow throttling variable of PID calculated flow rate throttling based on the temperature in temperature that writes down in the daily record data and the test cabinet.In an embodiment of step 1804, controller 616 is based on the temperature of the test cabinet 108 of serviceability temperature sensor 620 current measurements in temperature that writes down in the step 1302 of submethod 1300 and the step 1204, use processor 1112 to carry out PID 1108, with calculated flow rate throttling variate-value.In step 1806, submethod 1800 will output to changeable flow equipment by flow throttling variate-value flow throttling adjustment, step 1802 of step 1804.In an embodiment of step 1806, controller 616 increases to the flow throttling of determining in the step 1802 with the flow throttling variate-value of step 1804, and the result is outputed to flow throttling 1120 with control fan changeable flow equipment 330.

Submethod 1800 returns then, continues control method 1200.

Figure 20 is temperature-time diagram 2000, and wherein, solid line 1902 is represented the preferred temperature of test cabinet among Fig. 1 shown in Figure 19,2,3,4,6 and 8, and the desired temperature of the test cabinet 108 of adjustment spectrum 1107 controls among Figure 11 is used in dotted line 2004 representatives.Shown in Figure 200 0, to utilize and minimumly to dash 2006 and the overshoot that reduces down, the temperature of test cabinet 108 is more closely followed the preferred temperature of the indicated TEMPERATURE SPECTROSCOPY of line 1902.

Though specific example has illustrated and described the test macro 100 that comprises rack 104, described shell accommodates with three of every row six test cabinets 108 arranging of the modes of two row totally, and the embodiment of this paper is not limited to this structure.Generally, the embodiment of this paper can be applied to be integrated with any test macro 100 of a plurality of test cabinets 108.In addition, though show the rack 104 that only has access door 204, some embodiments can have and are configured to allow as required or for specific use or use the door that enters test cabinet 108 easily.According to the embodiment that utilizes shared control unit 616, controller 616 can be operated by single copy or the example of carrying out control algolithm.Therefore, test cabinet 108 can be provided the air of thermal control, and the shaking platform 212 in each test cabinet 108 can use single controller 616 and control algolithm to operate in a similar fashion.In conjunction with such embodiment, with in the test cabinet 108 any or provide temperature information to controller 616 with the related temperature sensor 620 of any other parts in the air circulator 232.With any the related single accelerometer 640 in the platform 212 can be with thinking that controller 616 provides acceleration information.According to such embodiment, advantageously, test cabinet 108, shaking platform assembly 208 and attached device under test construct in the same manner.Although the various examples that provide have been discussed the use of pneumatic actuator 520, also can use the actuator of other type here.

Combination of features

The any-mode of the embodiment of this paper in can be in the following manner makes up, and after those skilled in the art read and understand the disclosure, other embodiments will be conspicuous.

A. the product test system can comprise a plurality of shaking platforms, controlledly is installed on product on the described shaking platform with vibration; And air circulator, control the air themperature of described product surrounding air.

B. system controller be can comprise as the indicated system of A more than, described air themperature and the vibration that is applied to described shaking platform controlled.

C. can comprise system controller as A or the indicated system of B more than, described system controller has the vibrating controller of the described vibration of control.

D. the indicated system of above as A, B or C can the involving vibrations controller, and vibrating controller can be operated to control the vibration of all shaking platforms in (a) a plurality of shaking platforms or the vibration of the one or more subclass in a plurality of shaking platforms of control (b) respectively.

E. can comprise temperature controller as the indicated system of A to D more than, control described air circulator to adjust described air themperature.

F. can comprise air circulator as the indicated system of A to E more than, described air circulator has at least one thermal control element, pipeline and at least one fan, and at least one thermal control element, described pipeline and described at least one fan collaborative work are to adjust described air themperature.This thermal control element can be one of heating element heater and cooling element.

G. abovely can comprise stratie as the thermal control element as the indicated system of A to F.

H. can comprise air circulator as the indicated system of A to G more than, air circulator is configured to adopt cryogenic liquid to cool off described product.In these systems, air circulator can be configured to adopt air at room temperature to blow by (a) and annotate the pairing chamber of described product, and then (b) adopts described cryogenic liquid, and described product is cooled off from the temperature higher at least 20 degrees centigrade than room temperature.

I. abovely can comprise one or more in a plurality of shaking platforms as the indicated system of A to H, it can remove from system so that the installation of described product.

J. above as the indicated system of A to I can comprise hold as described in the rack of shaking platform, one or more in the described shaking platform can slip into or skid off described rack, so that the installation of described product.In these systems, shaking platform can slip into or skid off described rack by sliding part, linear bearing, roller bearing or wheel.

K. abovely can comprise installed part, in the described shaking platform each is mounted in the described system securely as the indicated system of A to J.

L. can comprise fixture as the indicated system of A to K more than, can operate so that described product is mounted to described shaking platform.Fixture can comprise the one or more elements in the following element: be configured to the hand welding with the shape and size of described product coupling, magnetic forceps, vacuum forceps, bolt, door bolt, hinge, button, magnet, electromagnet, electric actuator, spring is equipped with the equipment of spring, and locatees link stopper.

M. can comprise a plurality of chambers as the indicated system of A to L more than, each in described a plurality of chambers is surrounded one of described shaking platform, and has the controllable actuator that produces the vibration that is applied to described product.In these systems, (i) at least two chambers in a plurality of chambers can have different size or shape; At least one shaking platform in (ii) a plurality of shaking platforms can be along the wall or the top configuration of its chamber; (iii) air circulator can comprise the air-flow blade that can control, described air-flow blade can operate with convection current optionally by the air of at least one chamber in described a plurality of chambers flow rate and one of flow to or all adjust; And thereby at least one chamber in (iv) a plurality of chamber can be arranged in the top formation row of another chamber.

N. abovely can comprise air circulator as the indicated system of A to M, it is that in a plurality of chambers each controlled described air themperature separately that air circulator is configured to.In these systems, (i) at least two chambers in a plurality of chambers can have different size or shape; (ii) air circulator can comprise the air-flow blade that can control, described air-flow blade can operate with convection current selectively by the air of at least one chamber in described a plurality of chambers flow rate and one of flow to or all adjust; And thereby at least one chamber in (iii) a plurality of chamber can be arranged in the top formation row of another chamber.

O. above as the indicated system of A to N can comprise hold a plurality of as described in the rack of chamber, described rack can comprise at least one access door of the chamber that is used to form row.In these systems, (i) access door can form a plurality of access door, each access door in wherein closed described a plurality of access door is isolated one or more chambers in described a plurality of chamber and room air, and opens at least one access door and can not change isolation with the corresponding chamber of at least one other access door; One or more height in described rack in the (ii) described chamber can be adjusted vertically; (iii) described row can remove from described rack, and described system can also comprise the product frame, are used to be placed on the position at row place in the described rack, that be removed; Thereby under controlled air themperature, product can be placed on the described product frame in the described rack; (iv) in described a plurality of chambers each, described system can also comprise no screw thread side plate, be used to make oscillation actuator to separate on environment with shaking platform separately, described actuator can comprise pneumatic actuator, and described side plate and separately chamber can form labyrinth sealing; (vi) described air circulator can comprise the air-flow plenum chamber that interlocks, thereby flows for each chamber in the described row provides uniformly, and described plenum chamber is shaped at the rear wall place of described rack; And/or (vii) described system can comprise controller, be used to control air themperature and for the vibratory output of each shaking platform of chamber, each chamber in described a plurality of chamber can comprise (a) at least one thermocouple, provide the temperature survey feedback to described controller, and (b) at least one accelerometer, provide the acceleration feedback to described controller, thereby be convenient to the active feedback control of temperature and vibratory output respectively.

P. above as the indicated system of A to O can comprise hold a plurality of as described in the rack of chamber, described rack can comprise at least one access door of the chamber that is used to form row, and described air circulator can comprise the air-flow plenum chamber that interlocks, thereby flows for each chamber in the described row provides uniformly.In these systems, the vibration of the platform in the described row can be that the unit is controlled with the group, and/or the staggered plenum chamber of described air-flow can link to each other with each chamber in the described row by air outlet slit, wherein apart from the area of the farther air outlet slit of the fan of the described air actuator area less than the nearer air outlet slit of the described fan of distance.

Q. above as the indicated system of A to P can comprise hold a plurality of as described in the rack of chamber, described rack can comprise at least one access door of the chamber that is used to form row, and described air circulator can comprise the air-flow plenum chamber that interlocks, thereby flows for each chamber in the described row provides uniformly.In these systems, the one or more chambers in described a plurality of chambers can comprise at least one thermocouple, provide the temperature survey feedback to described controller; And at least one accelerometer, provide the acceleration feedback to described controller, thereby be convenient to the active feedback control of temperature and vibratory output respectively, and (i) described at least one accelerometer can be or comprise that three axis accelerometer, described three axis accelerometer can be operated and think that its shaking platform provides three-dimensional vibrating feedback; (ii) described at least one accelerometer can be first linear accelerometer, and perpendicular to second linear accelerometer of described first linear accelerometer, described second linear acceleration is counted its shaking platform the twin shaft feedback is provided.

R. can be configured to make that as the indicated system of A to Q the temperature of each chamber and vibration can be by network controls more than.

S. can comprise as the indicated system of A to R more than: shaking platform, shaking platform comprises framework, framework is connected with oscillation actuator; And fixture pallet, be connected with described product, described framework and described fixture pallet are configured to (a) and link together securely in described system, perhaps (b) thus separate with described system described fixture pallet can be removed from described system.In this system, (i) framework can comprise the sealing plate with described product ambient air and actuator discharge isolation; (ii) be not the framework of sealing, but described fixture pallet seals, make that described fixture pallet is mounted to described framework makes described product ambient air isolate actuator waste gas; Each shaking platform in perhaps (iii) described a plurality of shaking platforms can comprise two-layer; Ground floor in two-layer forms the framework that is connected with oscillation actuator, the second layer in two-layer forms the fixture pallet, be used for product is installed in described fixture pallet, and described system also comprises rack and a plurality of chamber, each chamber comprises the described second layer, make (a) when each shaking platform of described system two-layer links together securely, described chamber separates on described rack internal environment, perhaps (b) when the two separate of each shaking platform of described system, described chamber can remove from described rack.

T. above can comprise as the indicated system of A to S as described at least one shaking platform in a plurality of shaking platforms, it can be vertically and is selectively removable, so that place the product that is installed on described at least one shaking platform.

U. can comprise rack and a plurality of chamber as the indicated system of A to T more than, each chamber in described a plurality of chamber surrounds one of described shaking platform and has the actuator that causes the platform vibration of independent control, described air circulator is configured to make each chamber in described a plurality of chamber can control air themperature separately, and the height of each chamber in described rack can be adjusted.In this system, two or more chambers in described a plurality of chambers are networked together and are used for shared vibration and air themperature operation.

V. can comprise the electric actuation fixture as the indicated system of A to U more than, described electric actuation fixture can be operated to make product be attached to each platform automatically at least in part.

W. can comprise at least one shaking platform as the indicated system of A to V more than, described at least one shaking platform comprises the equipment that one or more vacuum, pneumatic, electromagnetism and/or electro-motor activate, and the equipment that described one or more vacuum, pneumatic, electromagnetism and/or electro-motor activate can be controlled alternatively product is attached to described vacuum platform or product is discharged from described shaking platform.

X. above as the indicated system of A to W can comprise hold as described in the rack of chamber, described rack comprises at least one access door that is used for described row.

Y. above can test products as the indicated system of A to X, described product comprises the electronic product that has fixture or do not have fixture.

Z. above can comprise as the indicated system of A to Y as described at least one shaking platform in a plurality of shaking platforms, it is bent, is shaped or increases the weight of, to change the vibration frequency response of described at least one shaking platform on the zone at described platform when starting.

AA. can comprise a plurality of tangential fans as the indicated system of A to Z more than, the product of each fan in chamber in described a plurality of tangential fans provides air-flow, and described chamber is arranged to vertical row.In this system, described tangential fan can be along the common drive axis configuration that is driven by engine and/or band.

AB. can comprise cfentrifugal blower as the indicated system of A to AA more than.

AC. vibratory tray can comprise: desktop; And fixture, be used for product is connected to described desktop, wherein, described desktop can selectively be fixed to the intrasystem supporting structure of product test, and when starting, be used as the intrasystem shaking platform of described product test, and described desktop can selectively remove from described supporting structure, so that make product be connected or separate with described desktop.

AD. the product test controller can comprise the device that the vibration of a plurality of shaking platforms in the shared rack is controlled; And the device that the air themperature of the product installed on the described shaking platform is controlled.

AE. can comprise the device of controlling air themperature as the indicated system of AD more than, form the device that the air circulator that drives air-flow in the described rack is controlled.

AF. above as AD or the indicated system of AE can comprise the device of control vibration, and its utilization is fed back from following one or two acceleration and controlled described vibration: (a) at least one shaking platform described a plurality of shaking platform; And the product that (b) is mounted at least one shaking platform in described a plurality of shaking platform.

AG. abovely can comprise the device of controlling air themperature as AD, AE or the indicated system of AF, its utilization is fed back from following one or two temperature and is controlled described air themperature: (a) air temperature sensor and (b) product temperature sensor.

The vibration chamber that AH. can seal on the environment can the involving vibrations platform, and product is mounted to described shaking platform; And one or more oscillation actuators, make described shaking platform vibration in response to driving signal.Described vibration chamber can selectively be fixed in the product test system, described product test system provides described driving signal and controls air themperature in the described chamber, and described chamber can selectively remove from described system, so that make product be connected or separate with described shaking platform.

AI. test macro can comprise the test cabinet; Be arranged in a plurality of test cabinets in the described test cabinet; Air circulator comprises: air intake, a plurality of air outlet slits, wherein at least one air outlet slit is related with each test cabinet in described a plurality of test cabinets, inlet plenum, fan, wherein said fan is supplied air from described inlet plenum, the downstream chamber, and wherein said fan supplies air to the downstream chamber; And a plurality of shaking platforms, each test cabinet in wherein said a plurality of test cabinets comprises at least one shaking platform.

AJ. above can involving vibrations platform cover as the indicated test macro of AI, wherein at least one shaking platform is related with the shaking platform cover; And/or a plurality of shaking platform actuators, each shaking platform in wherein said a plurality of shaking platform is related with the shaking platform actuator, and the described shaking platform cover of described at least one shaking platform surrounds the volume that the shaking platform actuator that is used for this shaking platform and qualification and described air circulator separate.

AK. above as AI or the indicated test macro of AJ can comprise and (i) be arranged in above another shaking platform, and (ii) comprise related described at least one shaking platform cover of shaking platform of header board and base plate.

AL. can comprise the whole shaking platform related as AI, AJ or the indicated test macro of AK more than with the shaking platform cover, wherein at least one shaking platform cover related with shaking platform comprises header board in the bottom of a row shaking platform, and at least one the shaking platform cover that is associated with the shaking platform that is arranged in another shaking platform top comprises header board and base plate.

AM. can comprise at least one changed course device as the indicated test macro of AI to AL more than, wherein at least one changed course device is arranged in the described downstream chamber, and described at least one changed course device forms the constriction zone in the described downstream chamber.In this system, described changed course device can be in the upstream or the downstream of arbitrary described air outlet slit.

AN. can comprise at least one flow control apparatus as the indicated test macro of AI to AM more than.Described at least one flow control apparatus can comprise any changed course device, damper, valve, grid, passage, outlet and active flow control apparatus.

AO. abovely can comprise tangential fan as fan as the indicated test macro of AI to AN.

AP. above as the indicated test macro of AI to AN can comprise be arranged in as described in thermal control element in the inlet plenum.

AQ. the multicell test macro can comprise rack; At least one door; A plurality of test cabinets, wherein each described test cabinet is arranged in the described rack; A plurality of shaking platforms, wherein each test cabinet comprises at least one shaking platform, and enters each shaking platform by at least one door; And air circulator, comprising at least one inlet, downstream chamber, be arranged in described air outlet slit indoor at least one changed course device and a plurality of air outlet slit, each test cabinet in wherein said a plurality of test cabinets is related with at least one air outlet slit.

AR. abovely can comprise a plurality of test cabinets as the indicated test macro of AQ, described a plurality of test cabinets are arranged to form at least one row test cabinet, and wherein the shaking platform cover is related with each test cabinet above any other test cabinet.

AS. can comprise at least one shaking platform cover as AQ and the indicated test macro of AR more than, at least one test cabinet in wherein said a plurality of test cabinets is related with the shaking platform cover.

AT. the system that the temperature of the product in the test cabinet is controlled can comprise the thermal control element, is used for heating or cooling air; Fan is used to make air movement by described thermal control element and enter described test cabinet; Temperature sensor is positioned at described test cabinet; Memory has the preferred temperature spectrum that is stored in wherein; And controller, be connected to described temperature control element and described temperature sensor.Described controller can use the actual temperature of the described test cabinet of described temperature sensor measurement; Based on described preferred temperature spectrum and described actual temperature, usage ratio integral differential (PID) function is determined the temperature throttling valve; And the temperature throttling of described thermal control element is set to described temperature throttling valve.

AU. can comprise controller as the indicated system of AT more than, described controller is carried out convergence algorithm to determine described temperature throttling valve, and the temperature throttling valve of the described convergence algorithm pair storage that moves before relative with described preferred temperature spectrum is handled.

AV. above as the indicated system of AT or AU can based on as described in before operation storage the measurement temperature value and as described in difference between the actual temperature, use the PID function further to adjust described temperature throttling.

AW. can also comprise the fan throttling element as AT, AU or the indicated system of AV more than, the air-flow that is used to control the speed of described fan and enters described chamber, and controller can use the PID function that described fan throttling element is set based on the measurement temperature value of the storage of operation before described and the difference between the described actual temperature.

AX. can also comprise changeable flow equipment as the indicated system of AT to AW more than, be used to limit the air-flow that enters described chamber; And the flow throttling element, be used to control described changeable flow equipment.Controller can use the PID function that described flow throttling element is set based on the measurement temperature value of the storage of operation before described and the difference between the described actual temperature.

AY. the system that the temperature of the product in the test in test cabinet is controlled can comprise: the thermal control element is used for heating or cooling air; Fan is used to make air movement by described thermal control element and enter described test cabinet; Temperature sensor is positioned at described test cabinet; Memory has the preferred temperature spectrum that is stored in wherein; And controller, be connected to described temperature control element and described temperature sensor.Described controller can comprise memory and processor, and software, and described software is carried out following steps when being carried out by described processor: use described temperature sensor to determine the temperature of described test cabinet; Based on described preferred temperature spectrum and described actual temperature, usage ratio integral differential (PID) function is determined the temperature throttling valve; And the temperature throttling of described thermal control element is set to described temperature throttling valve.

AZ. above as the indicated system of AY can as described in store convergence algorithm in the memory, described convergence algorithm is when being carried out by described processor, and the step of carrying out the temperature throttling valve of handling the storage that moves before relative with described preferred temperature spectrum is with the temperature throttling valve of the adjustment that is identified for controlling described thermal control element.

BA. above as the indicated system of AY or AZ can as described in storage PID function in the memory, described PID function is when being carried out by described processor, based on the difference between the measurement temperature of the measurement temperature value of the storage of operation before described and described test cabinet, further adjust described temperature throttling valve.

BB. can comprise the fan throttling element as AY, AZ or the indicated system of BA more than, the air-flow that is used to control the speed of described fan and enters described chamber.Described memory can also be stored the PID function, and described PID function is when being carried out by described processor, and the difference based between the measurement temperature of the measurement temperature value of the storage of operation before described and described test cabinet is provided with described fan throttling element.

BC. can comprise changeable flow equipment as the indicated system of AY to BB more than, be used to limit the air-flow that enters described chamber; And the flow throttling element, be used to control described changeable flow equipment.Described memory can also be stored the PID function, and described PID function is when being carried out by described processor, and the difference based between the measurement temperature of the measurement temperature value of the storage of operation before described and described test cabinet is provided with described flow throttling element.

BD. the method for temperature that is used to control the air in the test cabinet that comprises a plurality of test fixing devices can comprise the spectrum temperature that is identified for test cabinet and read the step of the temperature of test cabinet.If the number of the operation of TEMPERATURE SPECTROSCOPY is less than predetermined number, described method is locker room's temperature in described memory, determine the temperature throttling valve based on described spectrum temperature and described room temperature usage ratio integral differential (PID) function, described temperature throttling is stored in the memory and the temperature throttling element of just described thermal control element is set to described temperature throttling valve.If the number of the operation of described TEMPERATURE SPECTROSCOPY equates with the number of being scheduled to, so described method uses convergence algorithm to determine to adjust spectrum, if the number of the operation of described TEMPERATURE SPECTROSCOPY is greater than described predetermined number, described method is determined the temperature throttling valve according to adjusting spectrum, uses PID function accounting temperature throttling variable quantity and the temperature throttling element of described thermal control element is set based on described temperature throttling valve and described temperature throttling variable quantity based on the temperature of the storage in the described memory.

BE. in the above method indicated as BD, described adjustment spectrum can comprise time-based temperature throttling valve.

BF. software product can comprise: instruction, be stored on the nonvolatile computer-readable medium, and the step of the temperature of the air that is used for controlling the test cabinet that comprises a plurality of test fixing devices is carried out in wherein said instruction when being carried out by computer.Described instruction can comprise the spectrum temperature that is used for determining described test cabinet, read described test cabinet temperature, determine that the number of operation of described TEMPERATURE SPECTROSCOPY is whether less than the step of predetermined number.Described instruction can may further comprise the steps: (a) the described temperature of storage in memory; (b) based on described spectrum temperature and described temperature, usage ratio integral differential (PID) function is determined the temperature throttling valve; (c) the described temperature throttling of storage in described memory; And (d) the temperature throttling element of thermal control element is set to described temperature throttling valve, and when the number of the operation of described TEMPERATURE SPECTROSCOPY during less than described predetermined number, step (a) to step (d) is performed.Described instruction can comprise and is used for using when the number of the operation of described TEMPERATURE SPECTROSCOPY equates with described predetermined number convergence algorithm to determine to adjust the instruction of composing.Described instruction can comprise that being used for (e) determines the temperature throttling valve according to described adjustment spectrum, (f) based on temperature of storing in the described memory and described temperature, use the PID function to come accounting temperature throttling variable quantity and (g) based on described temperature throttling valve and described temperature throttling variable quantity, the instruction of the described temperature throttling of described thermal control element is set, when the number of the operation of described TEMPERATURE SPECTROSCOPY during greater than described predetermined number, step (e) to (g) is performed.

BG. software product can comprise: instruction, be stored on the nonvolatile computer-readable medium, wherein said instruction is carried out when being carried out by computer and is used for controlling the step of the temperature of the product to be measured in the test cabinet with temperature throttling element, thermal control element and temperature sensor based on the preferred temperature spectrum.Described instruction can comprise the instruction of the step of the temperature that is used to use described temperature sensor to determine described test cabinet; Based on described expectation spectrum and described temperature, usage ratio integral differential (PID) function is determined the temperature throttling valve; And the described temperature throttling element that described thermal control element is set based on described definite temperature throttling valve.

BH. can comprise as the indicated software product of BG more than: instruction, be used for (a) and carry out the temperature throttling valve of step of handling the before temperature throttling valve of the storage of operation relative to determine to adjust with described preferred temperature spectrum, (b) based on the measurement temperature value of the storage of operation before and the difference of described temperature, adjust described improved temperature throttling valve, (c), the speed of fan throttling with the fan of the air in the described test cabinet of control circulation is set based on the measurement temperature value of the storage of operation before and the difference of described temperature; And/or instruction, be used for based on the measurement temperature value of the storage of operation before and the difference of described temperature, the flow throttling of the changeable flow control appliance that flows of the air in the described test cabinet of restriction is set.

BI. the method that is used to test a plurality of products can comprise: vibration at least the first product on first shaking platform in rack, vibration at least the second product on second shaking platform in described rack, and the air themperature of controlling the air that centers on described first product and described second product simultaneously simultaneously.

BJ. in the above method indicated as BJ, the step of vibration can comprise: utilize controller to control described first shaking platform and described second shaking platform, and at least one accelerometer provides the acceleration feedback to described controller, and/or the step of control can comprise: utilize described controller to control described temperature, and at least one thermocouple provides the temperature survey feedback to described controller.

BK. in the above method indicated as BI or BJ, the step of control can comprise that controlling air circulator controls described air themperature, wherein said air circulator comprises at least one thermal control element, pipeline and at least one fan, and described at least one thermal control element, described pipeline and described at least one fan collaborative work are to adjust described air themperature.

BL. above as BI, in the indicated method of BJ or BK, the step of control can comprise by one of coil that utilizes cryogenic liquid, Compressed Gas, evaporation plate and mechanical refrigeration unit to be cooled off around the air of described first product and described second product as described thermal control element.The step of cooling can comprise with around the air of described first product and described second product from least 20 degrees centigrade high temperature cooling more than the room temperature, and be included in and utilize before the described thermal control element, utilize air at room temperature to wash space around described first product and described second product.

BM. above as the indicated method of BI to BL can comprise with as described in first product and as described at least one of second product be carried in its separately first shaking platform or second shaking platform on and be loaded as described in shaking platform by from as described in rack remove.

BN. above as the indicated method of BI to BM can comprise the shaking platform that utilizes one of sliding part, linear bearing, roller bearing or wheel to be loaded as described in making slip into or skid off as described in rack.The described shaking platform that slides can comprise makes described shaking platform slip into described rack, and can comprise that (a) installs the shaking platform be loaded rigidly in described rack, and (b) remove and be used for making described shaking platform to slip into one of described sliding part, linear bearing, roller bearing or wheel of described rack.

BO. in the above method indicated as BI to BN, the step of vibration can comprise utilizes fixture that vibration is sent to described first product and described second product from described first shaking platform and described second shaking platform.Fixture can comprise the one or more elements in the following element: hand welding, and magnetic forceps, pneumatic tongs, vacuum forceps, bolt, door bolt, hinge, button, magnet, electromagnet, electric actuator, spring is equipped with the equipment of spring, and locatees link stopper.Described method can also comprise utilizing to have pneumatic tongs, and the fixture of one of vacuum forceps, electromagnet and electric actuator makes one of described first product and described second product attached automatically with its shaking platform separately at least in part.

BP. in the above method indicated as BI to BO, the step of vibration can comprise: (a) when each of described shaking platform is positioned at first chamber separately of described rack and second chamber, utilize each of described first shaking platform and described second shaking platform, and (b) utilize the vibration that produces described product and described platform with each controllable actuator that connects of described first platform and described second platform.The step of control can comprise: (c) utilize air circulator to control described air themperature for each of described first chamber and described second chamber individually, and (d) control air-flow blade with convection current optionally by described a plurality of chambers at least one air flow rate and one of flow to or all adjust.The step of vibration can comprise utilize described first shaking platform and described second shaking platform at least one and (e) described first shaking platform and described second shaking platform described at least one perhaps described at least one non-configuration flatly in described rack of (f) described first shaking platform and described second shaking platform is installed along the wall or the top of its chamber separately.The step of vibration can comprise that each of at least one and described platform of described first shaking platform and described second shaking platform is positioned at first chamber and second chamber separately, thereby described first chamber and described second chamber form in described rack and be listed as access door and can operate the path that leads to described first shaking platform and described second shaking platform to provide.

BQ. in the above method indicated as BI to BP, at least one of the step of vibration can comprise utilizes at least one actuator, and described at least one actuator is configured to ring its shaking platform separately from a silhouette.And, at least one of the step of vibration can comprise the pneumatic actuator that utilizes process gas, the step of control comprises utilizes no screw thread side plate with described waste gas and air separation around corresponding product, the chamber formation labyrinth sealing of described no screw thread side plate and corresponding shaking platform.

BR. in the above method indicated as BI to BQ, the step of control can comprise: (a) utilize the staggered plenum chamber of air-flow to flow for each chamber on every side in described first shaking platform and described second shaking platform provides uniformly, the staggered plenum chamber of described air-flow is formed in the rear wall place of described rack, and (b) the staggered plenum chamber of described air-flow is connected to each of described chamber by air outlet slit, and apart from the area of the farther air outlet slit of the fan that air is provided less than area apart from the nearer air outlet slit of described fan.

BS. in the above method indicated as BI to BR, network can be used for controlling the step of vibration and the step of control.

BT. in the above method indicated as BI to BS, at least one of the step of vibration can comprise the framework that the fixture pallet of sealing is fixed to described fixture pallet of vibration and described product, thereby makes described fixture pallet that described product ambient air and actuator waste gas are isolated.

BU. in the above method indicated as BI to BT, the step of vibration can comprise that each and each of described platform of utilizing described first shaking platform and described second shaking platform are positioned at first chamber separately and second chamber of described rack, at least one height in described rack in described first chamber and described second chamber can be adjusted, and wherein control comprises and controls in described second chamber and independently control the air that centers on described first product in described first chamber around the air of described second product.

BV. in the above method indicated as BI to BU, at least one of the step of vibration can comprise utilize the platform that is bent, is shaped or increase the weight of as described first shaking platform or described second shaking platform when activateding, to change its frequency response.

BW. in the above method indicated as BI to BW, the step of control can comprise utilizes tangential fan, a plurality of tangential fans, and the circulation of one of cfentrifugal blower is around the air of described first product and described second product.

It has been the aforementioned discussion that diagram and illustrative purposes have provided the application.This explanation is not intended the application is confined to form disclosed herein.Correspondingly, for distortion in the application's technology or ken, suitable with above-mentioned instruction with revise within the scope of the appended claims.The at present known enforcement the application's of the further meant for illustration of Shuo Ming embodiment preferred plan above, and make that those skilled in the art can be with these or with other embodiment and or the application's needed by application-specific needed various modifications of use or utilize the application.Claims intentions is interpreted as the alternate embodiments that comprises that prior art allows.

Claims

1. product test system comprises:

A plurality of shaking platforms controlledly are installed on product on the described shaking platform with vibration; And

Air circulator is controlled the air themperature of described product surrounding air.

2. system according to claim 1 also comprises:

System controller is controlled described air themperature and the vibration that is applied to described shaking platform.

3. system according to claim 2, described system controller comprises:

Vibrating controller is controlled described vibration.

4. system according to claim 3, described vibrating controller can be operated to control the vibration of each shaking platform in (a) a plurality of shaking platforms or the vibration of the one or more shaking platform subclass in a plurality of shaking platforms of control (b) respectively.

5. system according to claim 2, described system controller comprises:

Temperature controller is controlled described air circulator to adjust described air themperature.

6. system according to claim 1, described air circulator has at least one thermal control element, pipeline and at least one fan, and described at least one thermal control element, described pipeline and described at least one fan collaborative work are to adjust described air themperature.

7. system according to claim 6, described thermal control element comprises in heating element heater and the cooling element.

8. system according to claim 6, described thermal control element comprises stratie.

9. system according to claim 1, what described air circulator was configured to adopt cryogenic liquid and Compressed Gas cools off one of at least described product.

10. system according to claim 9, described air circulator is configured to adopt air at room temperature to blow by (a) and annotates the pairing chamber of described product, and (b) adopts one of at least described product being cooled off from the temperature higher at least 20 degrees centigrade than room temperature of described cryogenic liquid and Compressed Gas subsequently.

11. system according to claim 1, one or more can from system, the removing in described a plurality of shaking platforms so that the installation of described product.

12. system according to claim 1 also comprises:

The rack that holds described shaking platform, one or more in the described shaking platform can slip into or skid off described rack, so that the installation of described product.

13. system according to claim 12, described shaking platform slips into or skids off described rack by slide plate, linear bearing, roller bearing or wheel.

14. system according to claim 13, when packing described shaking platform into described system, described slide plate, linear bearing or roller bearing can be removed from described system.

15. system according to claim 12 also comprises:

Installed part is mounted in the described shaking platform each in the described system securely.

16. system according to claim 1 also comprises:

Fixture can be operated so that described product is mounted to described shaking platform.

17. system according to claim 16, described fixture comprise the one or more elements in the following element: be configured to the shape and size of described product coupling, hand welding, magnetic forceps, vacuum forceps, bolt, door bolt, hinge, button, magnet, electromagnet, electric actuator, spring, spring equipment, and location link stopper.

18. system according to claim 1 also comprises:

A plurality of chambers, each in described a plurality of chambers surround one of described shaking platform and have the controllable actuator that produces the vibration that is applied to described product.

19. system according to claim 18, described air circulator is configured to in described a plurality of chambers each, controls described air themperature separately.

20. system according to claim 18, at least two chambers in described a plurality of chambers have different size or shape.

21. system according to claim 18, at least one shaking platform in described a plurality of shaking platforms is along its wall or top configuration of chamber separately.

22. system according to claim 18, described air circulator comprises the air-flow blade that can control, and described air-flow blade can be operated with the flow rate and one of flow to by the air of at least one chamber in described a plurality of chambers of convection current selectively and adjust or flow rate and flowing to is all adjusted.

23. system according to claim 18, at least one chamber in described a plurality of chambers be arranged in another chamber above, thereby form row.

24. system according to claim 23 also comprises the rack that holds described chamber, described rack comprises at least one access door that is used for described row.

25. system according to claim 24, described access door comprises a plurality of access door, each access door in wherein closed described a plurality of access door is isolated one or more chambers in described a plurality of chamber and room air, and opens at least one access door and can not change isolation with the corresponding chamber of at least one other access door.

26. system according to claim 24, the height of one or more chambers in described rack can be adjusted vertically.

27. system according to claim 24, described row can remove from described rack, and described system also comprises the product frame, are used to be placed on position in the described rack, that row are removed; Thereby under controlled air themperature, product can be placed on the described product frame in the described rack.

28. system according to claim 24, for in described a plurality of chambers each, described system also comprises a plurality of actuators, at least one actuator is configured to and collides its shaking platform separately from the side to reduce the required vertical cabinet space of described actuator, stays greater room for adjacent chamber in described rack.

29. system according to claim 24, in described a plurality of chambers each, described system also comprises no screw thread side plate, is used to make oscillation actuator to separate on environment with shaking platform separately.

30. system according to claim 29, described oscillation actuator comprises pneumatic actuator, wherein said side plate and chamber formation labyrinth sealing separately.

31. system according to claim 24, described air circulator comprises the air-flow plenum chamber that interlocks, thereby flows for each chamber in the described row provides uniformly, and described plenum chamber is shaped at the rear wall place of described rack.

32. system according to claim 31, the vibration of the platform in the described row can be controlled as group.

33. system according to claim 31, the staggered plenum chamber of described air-flow links to each other with each chamber in the described row by air outlet slit, and apart from the area of the farther air outlet slit of the fan of the described air actuator area less than the nearer air intake of the described fan of distance.

34. system according to claim 24 also comprises controller, is used to control air themperature and for the vibratory output of each shaking platform of chamber, each chamber in described a plurality of chambers comprises:

(q) at least one thermocouple provides the temperature survey feedback to described controller, and

(b) at least one accelerometer provides the acceleration feedback to described controller,

Thereby be convenient to the active feedback control of described air themperature and described vibratory output respectively.

35. system according to claim 34, described at least one accelerometer comprises three axis accelerometer, and described three axis accelerometer can be operated and think that its shaking platform provides the three-dimensional vibrating feedback.

36. system according to claim 34, described at least one accelerometer is first linear accelerometer, and described system also comprises second linear accelerometer perpendicular to described first linear accelerometer, and described second linear acceleration is counted its shaking platform the twin shaft feedback is provided.

37. system according to claim 18, the temperature of at least one chamber in described a plurality of chambers and vibration can be by network controls.

38. system according to claim 1, each shaking platform in described a plurality of shaking platforms comprises:

Framework is connected with oscillation actuator, and

The fixture pallet is connected with described product, and described framework and described fixture pallet are configured to alternately (a) and link together securely in described system with (b) thereby separate described fixture pallet can be removed from described system.

39. according to the described system of claim 38, described framework comprises sealing plate, described sealing plate is isolated described product ambient air and actuator waste gas.

40. according to the described system of claim 38, described framework does not seal, described fixture pallet seals, and makes that described fixture pallet is mounted to described framework isolates described product ambient air and actuator waste gas.

41. according to the described system of claim 38, each shaking platform in described a plurality of shaking platforms comprises two-layer;

Ground floor in two-layer comprises the framework that is connected with described oscillation actuator, and

The second layer in two-layer comprises the fixture pallet,

Described system also comprises rack and a plurality of chamber, and each chamber comprises the described second layer, makes

(a) when each shaking platform of described system two-layer linked together securely, described chamber separated on described rack internal environment, and alternatively,

(b) when the two separate of each shaking platform of described system, described chamber can remove from described rack.

42. system according to claim 1, at least one shaking platform in described a plurality of shaking platforms can move vertically and selectively, so that place the product that is installed on described at least one shaking platform.

43. system according to claim 1, at least one shaking platform in described a plurality of shaking platforms is non-configuration flatly in described system.

44. system according to claim 1, also comprise rack and a plurality of chamber, each chamber in described a plurality of chamber surrounds one of described shaking platform and has the actuator that causes the platform vibration that can control separately, described air circulator is configured to make each chamber in described a plurality of chamber can control air themperature separately, and the height of each chamber in described rack can be adjusted.

45. according to the described system of claim 44, at least two chambers in described a plurality of chambers form network together, with shared vibration and air themperature operation.

46. system according to claim 1 also comprises the electric actuation fixture, described electric actuation fixture can be operated to make product be attached to each platform automatically at least in part.

47. system according to claim 1, at least one shaking platform comprises one or more vacuum, pneumatic, electromagnetism, and/or the equipment of electro-motor actuating, described one or more vacuum, pneumatic, electromagnetism, and/or the equipment that electro-motor activates can be controlled alternatively product is attached to described vacuum platform and described product is discharged from described shaking platform.

48. system according to claim 1, described product comprises the electronic product that has fixture or do not have fixture.

49. system according to claim 1, at least one shaking platform in described a plurality of shaking platform is bent, is shaped or increases the weight of, to change the frequency response of described at least one shaking platform in described a plurality of shaking platforms on the zone at described platform when starting.

50. system according to claim 1, described air circulator comprises a plurality of tangential fans, and the product of each fan in chamber in described a plurality of tangential fans provides air-flow, and described chamber is arranged to vertical row.

51. according to the described system of claim 50, described tangential fan is along the common drive axis configuration that is driven by engine and/or band.

52. system according to claim 1, described air circulator comprises cfentrifugal blower.

53. a vibratory tray comprises:

Table top; And

Fixture is used for product is connected to described table top,

Wherein, described table top can selectively be fixed to the intrasystem supporting structure of product test, and starts with as the intrasystem shaking platform of described product test, and

Described table top can selectively remove from described supporting structure, so that make product be connected or separate with described table top.

54. a product test controller comprises:

The device that the vibration of a plurality of shaking platforms in the shared rack is controlled; And

The device that the air themperature of the product installed on the described shaking platform is controlled.

55. according to the described controller of claim 54, the device of control air themperature comprises the device that the air circulator that drives air-flow in the described shared rack is controlled.

56. according to the described controller of claim 54, the device utilization of control vibration is fed back from following one or two acceleration and is controlled described vibration:

(a) at least one shaking platform in described a plurality of shaking platform and

(b) be mounted to the product of at least one shaking platform in described a plurality of shaking platform.

57. according to the described controller of claim 54, the device utilization of control air themperature is fed back from following one or two temperature and is controlled described air themperature:

(a) air temperature sensor and

(b) product temperature sensor.

58. the vibration chamber that environment can seal comprises:

Shaking platform, product are mounted to described shaking platform; And

One or more oscillation actuators make described shaking platform vibration in response to driving signal,

Wherein, described chamber can selectively be fixed in the product test system, and described product test system provides described driving signal and controls air themperature in the described chamber, and

Described chamber can selectively remove from described system, so that make product be connected or separate with described shaking platform.

59. a test macro comprises:

The test cabinet;

A plurality of test cabinets, wherein said test cabinet are arranged in the described test cabinet;

Air circulator comprises:

Air intake;

A plurality of air outlet slits, wherein at least one air outlet slit is related with each test cabinet in described a plurality of test cabinets;

Inlet plenum;

Fan, wherein said fan is from described inlet plenum supply air;

The downstream chamber, wherein said fan supplies air to the downstream chamber;

A plurality of shaking platforms, each test cabinet in wherein said a plurality of test cabinets comprises at least one shaking platform.

60., also comprise according to the described test macro of claim 59:

The shaking platform cover, wherein at least one shaking platform is related with described shaking platform cover.

61. according to the described test macro of claim 60, described at least one shaking platform related with described shaking platform cover is arranged in another shaking platform top.

62., also comprise according to the described test macro of claim 60:

A plurality of shaking platform actuators, each shaking platform in wherein said a plurality of shaking platform is related with the shaking platform actuator, and the described shaking platform cover of described at least one shaking platform surrounds the volume that the shaking platform actuator that is used for this shaking platform and qualification and described air circulator separate.

63. according to the described test macro of claim 60, the described shaking platform cover related with the described shaking platform that is arranged in another shaking platform top comprises header board and base plate.

64. according to the described test macro of claim 60, whole shaking platforms is related with the shaking platform cover, wherein at least one shaking platform cover related with shaking platform comprises header board in the bottom of a row shaking platform, and at least one the shaking platform cover that is associated with the shaking platform that is arranged in another shaking platform top comprises header board and base plate.

65., also comprise according to the described test macro of claim 59:

At least one device that alters course, wherein at least one changed course device is arranged in the described downstream chamber, and described at least one changed course device forms the zone that dwindles in the described downstream chamber.

66. according to the described test macro of claim 65, described at least one changed course device is in the downstream of at least one described air outlet slit.

67. according to the described test macro of claim 66, described at least one changed course device is in the upstream of another described air outlet slit.

68., also comprise at least one flow control apparatus according to the described test macro of claim 59.

69. according to the described test macro of claim 68, wherein said flow control apparatus comprises in changed course device, air damper, valve, grid, passage and the outlet.

70. according to the described test macro of claim 68, described flow control apparatus is the active flow control apparatus.

71. according to the described test macro of claim 59, described fan is a tangential fan.

72., also comprise according to the described test macro of claim 59:

The thermal control element, wherein said thermal control arrangements of elements is in described inlet plenum.

73. a multicell test macro comprises:

The test cabinet;

A plurality of test cabinets, wherein each described test cabinet is arranged in the described test cabinet;

A plurality of shaking platforms, wherein each test cabinet comprises at least one shaking platform, and each shaking platform is approaching by at least one;

Air circulator comprises at least one inlet, downstream chamber, is arranged at least one changed course device and a plurality of air outlet slit in the described downstream chamber, and each test cabinet in wherein said a plurality of test cabinets is related with at least one air outlet slit.

74. according to the described test macro of claim 73, described a plurality of test cabinets are arranged to form at least one row test cabinet, wherein the shaking platform cover is related with each test cabinet above any other test cabinet.

75., also comprise according to the described test macro of claim 73:

At least one shaking platform cover, at least one test cabinet in wherein said a plurality of test cabinets is related with the shaking platform cover.

76. the system that the temperature of the product in the test cabinet is controlled comprises:

The thermal control element is used for heating or cooling air;

Fan is used to make air movement by described thermal control element and enter described test cabinet;

Temperature sensor is positioned at described test cabinet;

Memory has the preferred temperature spectrum that is stored in wherein; And

Controller is connected to described temperature control element and described temperature sensor,

Wherein, described controller:

Use the actual temperature of the described test cabinet of described temperature sensor measurement;

Based on described preferred temperature spectrum and described actual temperature, usage ratio integral differential (PID) function is determined the temperature throttling valve; And

The temperature throttling element of described thermal control element is set to described temperature throttling valve.

77. according to the described system of claim 76, described controller is carried out convergence algorithm to determine described temperature throttling valve, the described convergence algorithm pair before temperature throttling valve of the storage of operation relative with described preferred temperature spectrum handled.

78. according to the described system of claim 77, described controller uses the PID function further to adjust described temperature throttling element based on the measurement temperature value of the storage of operation before described and the difference between the described actual temperature.

79., also comprise according to the described system of claim 77:

The fan throttling element, the air-flow that is used to control the speed of described fan and enters described test cabinet;

Wherein, described controller uses the PID function that described fan throttling element is set based on the measurement temperature value of the storage of operation before described and the difference between the described actual temperature.

80., also comprise according to the described system of claim 77:

Changeable flow equipment is used to limit the air-flow that enters described test cabinet; And

The flow throttling element is used to control described changeable flow equipment,

Wherein, described controller uses the PID function that described flow throttling element is set based on the measurement temperature value of the storage of operation before described and the difference between the described actual temperature.

81. the system that the temperature of the product to be measured in the test cabinet is controlled comprises:

The thermal control element is used for heating or cooling air;

Temperature sensor is positioned at described test cabinet; And

Controller is connected with described temperature sensor with described temperature control element, and described controller has memory and processor, and described memory stores preferred temperature spectrum and software, described software are carried out following steps when being carried out by described processor:

Use described temperature sensor to determine the actual temperature of described test cabinet;

Based on described preferred temperature spectrum and described actual temperature, usage ratio integral differential (PID) function is determined the temperature throttling valve; And,

82. 1 described system according to Claim 8, wherein said memory is also stored convergence algorithm, and described convergence algorithm is carried out following steps when being carried out by described processor:

The temperature throttling valve of handling the storage that moves before relative with described preferred temperature spectrum is with the temperature throttling valve of the adjustment that is identified for controlling described thermal control element.

83. 2 described systems according to Claim 8, wherein said memory is also stored the PID function, described PID function is when being carried out by described processor, based on the difference between the measurement temperature of the measurement temperature value of the storage of operation before described and described test cabinet, further adjust described temperature throttling valve.

84. 2 described systems according to Claim 8, also comprise: the fan throttling element, the air-flow that is used to control the speed of described fan and enters described chamber, wherein said memory is also stored the PID function, described PID function is when being carried out by described processor, based on the measurement temperature of described test cabinet and described before difference between the measurement temperature value of storage of operation, described fan throttling element is set.

85. 2 described systems according to Claim 8 also comprise:

Changeable flow equipment is used to limit the air-flow that enters described chamber; And

Wherein said memory is also stored the PID function, described PID function when carrying out by described processor, based on the measurement temperature of described test cabinet and described before difference between the measurement temperature value of storage of operation, described flow throttling element is set.

86. the method that the temperature of the air in the test cabinet that comprises a plurality of test fixing devices is controlled may further comprise the steps:

Be identified for the TEMPERATURE SPECTROSCOPY of described test cabinet;

Read the temperature of described test cabinet;

If the number of the operation of described TEMPERATURE SPECTROSCOPY is less than predetermined number:

The described temperature of storage in memory;

Based on described spectrum temperature and described temperature, usage ratio integral differential (PID) function is determined the temperature throttling valve;

The described temperature throttling valve of storage in described memory; And

The temperature throttling element of one or more thermal control elements is set to described temperature throttling valve;

If the number of the operation of described TEMPERATURE SPECTROSCOPY equals described predetermined number, use convergence algorithm to determine to adjust spectrum so; And

If the number of the operation of described TEMPERATURE SPECTROSCOPY is greater than described predetermined number:

Determine the temperature throttling valve according to described adjustment spectrum;

Based on the described temperature in temperature of storing in the described memory and the described test cabinet, use the PID function to come accounting temperature throttling variable quantity; And

Based on described temperature throttling valve and described temperature throttling variable quantity, the temperature throttling element of described one or more thermal control elements is set.

87. 6 described methods according to Claim 8, wherein said adjustment spectrum comprises time-based temperature throttling valve.

88. software product, comprise: instruction, be stored on the nonvolatile computer-readable medium, the step of the temperature of the air that is used for controlling the test cabinet that comprises a plurality of test fixing devices is carried out in wherein said instruction when being carried out by computer, and described instruction comprises:

Be used to be identified for the instruction of the TEMPERATURE SPECTROSCOPY of described test cabinet;

Be used to read the instruction of the temperature of described test cabinet;

Whether the number of operation that is used for determining described TEMPERATURE SPECTROSCOPY is less than the instruction of predetermined number;

Be used for (a) in the described temperature of memory storage; (b) based on described spectrum temperature and described temperature, usage ratio integral differential (PID) function is determined the temperature throttling valve; (c) the described temperature throttling valve of storage in described memory; And (d) the temperature throttling element of thermal control element is set to the instruction of described temperature throttling valve, and when the number of the operation of described TEMPERATURE SPECTROSCOPY during less than described predetermined number, step (a) to step (d) is performed; Be used for when the number of the operation of described TEMPERATURE SPECTROSCOPY equates with described predetermined number, using convergence algorithm to determine to adjust the instruction of composing; And

Be used for (e) and determine the temperature throttling valve according to described adjustment spectrum, (f) based on temperature of storing in the described memory and described temperature, use the PID function to come accounting temperature throttling variable quantity and (g) based on described temperature throttling valve and described temperature throttling variable quantity, the instruction of the temperature throttling element of described thermal control element is set, when the number of the operation of described TEMPERATURE SPECTROSCOPY during greater than described predetermined number, step (e) to (g) is performed.

89. software product, comprise: instruction, be stored on the nonvolatile computer-readable medium, wherein said instruction is carried out when being carried out by computer and is used for composing based on preferred temperature, control the step of the temperature of the product to be measured in the test cabinet with temperature throttling element, thermal control element and temperature sensor, described instruction comprises:

Be used to use described temperature sensor to determine the instruction of the temperature of described test cabinet;

Based on described preferred temperature spectrum and described temperature, usage ratio integral differential (PID) function is determined the instruction of temperature throttling valve; And

Be used for being provided with the instruction of the described temperature throttling element of described thermal control element based on described temperature throttling valve.

90. 9 described software products also comprise: instruct, be used to handle the temperature throttling valve of the before storage of operation relative with described preferred temperature spectrum to determine the temperature throttling valve of adjustment according to Claim 8.

91. according to the described software product of claim 90, also comprise: instruction is used for further adjusting the temperature throttling valve of described adjustment based on the measurement temperature value of the storage of operation before described and the difference between the described temperature.

92. 9 described software products also comprise: instruct, be used for based on the measurement temperature value of the storage of operation before and the difference between the described temperature, the speed of fan throttling with the fan of the air in the described test cabinet of control circulation is set according to Claim 8.

93. 9 described software products according to Claim 8, also comprise: instruction, be used for based on the measurement temperature value of the storage of operation before and the difference between the described temperature, the flow throttling of the changeable flow control appliance that flows of the air in the described test cabinet of restriction is set.

94. a method that is used to test a plurality of products comprises:

Vibration at least the first product on first shaking platform in rack;

Vibrate at least the second product on second shaking platform in described rack simultaneously; And

Control is around the air themperature of the air of described first product and described second product simultaneously.

95., comprise according to the described method of claim 94

The step of vibration comprises utilizes controller to control described first shaking platform and described second shaking platform, and at least one accelerometer provides the acceleration feedback to described controller, and

The step of control comprises utilizes described controller to control described temperature, and at least one thermocouple provides the temperature survey feedback to described controller.

96. according to the described method of claim 94, the step of control comprises that controlling air circulator controls described air themperature, wherein said air circulator comprises at least one thermal control element, pipeline and at least one fan, and described at least one thermal control element, described pipeline and described at least one fan collaborative work are to adjust described air themperature.

97. according to the described method of claim 96, the step of control comprises by one of coil that utilizes cryogenic liquid, Compressed Gas, evaporation plate and mechanical refrigeration unit to be cooled off around the air of described first product and described second product as described thermal control element.

98. according to the described method of claim 97, the step of cooling comprise with around the air of described first product and described second product from least 20 degrees centigrade high temperature cooling more than the room temperature, and be included in and utilize before the described thermal control element, utilize air at room temperature to wash space around described first product and described second product.

99., comprise that also with described first product and described second product at least one is carried on its first shaking platform or second shaking platform separately, and the shaking platform that is loaded is removed from described rack according to the described method of claim 94.

100., also comprise and utilize one of sliding part, linear bearing, roller bearing and wheel to make the described shaking platform that is loaded slip into and skid off described rack according to the described method of claim 99.

101. according to the described method of claim 100, the described shaking platform that slides comprises makes described shaking platform slip into described rack, and comprise that (a) installs the shaking platform be loaded rigidly in described rack, and (b) remove and be used for making described shaking platform to slip into one of described sliding part, linear bearing, roller bearing or wheel of described rack.

102. according to the described method of claim 94, the step of vibration comprises: utilize fixture that vibration is sent to described first product and described second product from described first shaking platform and described second shaking platform, described fixture comprises the one or more elements in the following element: hand welding, magnetic forceps, pneumatic tongs, vacuum forceps, bolt, door bolt, hinge, button, magnet, electromagnet, electric actuator, spring is equipped with the equipment of spring, and locatees link stopper.

103. according to the described method of claim 102, also comprise utilizing and have pneumatic tongs, the fixture of one of vacuum forceps, electromagnet and electric actuator makes one of described first product and described second product attached automatically with its shaking platform separately at least in part.

104. according to the described method of claim 94, the step of vibration comprises: (a) when each of described shaking platform is positioned at first chamber separately of described rack and second chamber, utilize each of described first shaking platform and described second shaking platform, and (b) utilize the vibration that produces described product and described platform with each controllable actuator that connects of described first platform and described second platform.

105. according to the described method of claim 104, the step of control comprises: (c) utilize air circulator to control described air themperature individually for each of described first chamber and described second chamber, and (d) control air-flow blade with convection current optionally by described a plurality of chambers at least one air flow rate and one of flow to or all adjust.

106. the method that according to claim 104 is, the step of vibration comprise utilize described first shaking platform and described second shaking platform at least one and (e) described first shaking platform and described second shaking platform described at least one or (f) described at least one non-configuration flatly in described rack of described first shaking platform and described second shaking platform is installed along the wall or the top of its chamber separately.

107. according to the described method of claim 104, the step of vibration comprises: when each of described first shaking platform and described second shaking platform be positioned at its separately first chamber and during second chamber, utilize at least one of described first shaking platform and described second shaking platform, described first chamber and described second chamber in described rack, to form row so that access door can be operated the path that leads to described first shaking platform and described second shaking platform to provide.

108. according to the described method of claim 94, at least one of the step of vibration comprises utilizes at least one actuator, described at least one actuator is configured to ring its corresponding shaking platform from a silhouette.

109. according to the described method of claim 94, at least one of the step of vibration comprises the pneumatic actuator that utilizes process gas, the step of control comprises utilizes no screw thread side plate with described waste gas and air separation around corresponding product, the chamber formation labyrinth sealing of described no screw thread side plate and corresponding shaking platform.

110. according to the described method of claim 94, the step of control comprises: (a) utilize the staggered plenum chamber of air-flow to flow for each chamber on every side that is positioned at described first shaking platform and described second shaking platform provides uniformly, the staggered plenum chamber of described air-flow is formed in the rear wall place of described rack, and (b) the staggered plenum chamber of described air-flow is connected to each of described chamber by air outlet slit, and apart from the area of the farther air outlet slit of the fan that air is provided less than area apart from the nearer air outlet slit of described fan.

111., also comprise and utilize network to control the step of vibration and the step of control according to the described method of claim 94.

112. according to the described method of claim 94, at least one of the step of vibration comprises the framework that the fixture pallet of sealing is fixed to described fixture pallet of vibration and described product, thereby makes described fixture pallet that described product ambient air and actuator waste gas are isolated.

113. according to the described method of claim 94, the step of vibration comprises that each and each of described platform of utilizing described first shaking platform and described second shaking platform are positioned at first chamber separately or second chamber of described rack, at least one height in described rack in described first chamber and described second chamber can be adjusted, and wherein control comprises and controls in described second chamber and independently control the air that centers on described first product in described first chamber around the air of described second product.

114. according to the described method of claim 94, at least one of the step of vibration comprises utilizes the platform that is bent, is shaped or increase the weight of as described first shaking platform or described second shaking platform, with when it activated, changes its frequency response.

115. according to the described method of claim 94, the step of control comprises utilizes tangential fan, a plurality of tangential fans, and the circulation of one of cfentrifugal blower is around the air of described first product and described second product.