CN104316281A - Device and method used for evaluating shock absorption and buffer performance of laptop bag - Google Patents
Device and method used for evaluating shock absorption and buffer performance of laptop bag Download PDFInfo
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- CN104316281A CN104316281A CN201410597308.9A CN201410597308A CN104316281A CN 104316281 A CN104316281 A CN 104316281A CN 201410597308 A CN201410597308 A CN 201410597308A CN 104316281 A CN104316281 A CN 104316281A
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Abstract
The invention provides a device and method used for evaluating the shock absorption and buffer performance of a laptop bag. The device comprises a lifting mechanism, a control mechanism, the to-be-evaluated laptop bag, a laptop module, one or more acceleration sensors, a data collection mechanism and a data processing mechanism, wherein the control mechanism is connected with the lifting mechanism, the to-be-evaluated laptop bag is placed on the lifting mechanism, the laptop module is arranged in the to-be-evaluated laptop bag, the acceleration sensors are arranged on the laptop module, the data collection mechanism is connected with the acceleration sensors, and the data processing mechanism is connected with the data collection mechanism. The laptop module with the sensors is placed in the to-be-evaluated laptop bag and is placed on the lifting mechanism, the to-be-evaluated laptop bag falls onto the ground in a free-fall mode, and the shock absorption and buffer performance of the to-be-evaluated laptop bag can be conveniently and easily obtained by collecting and processing the accelerated speed and speed data, in the falling process, of the to-be-evaluated laptop bag.
Description
Technical field
The present invention relates to electronic product Check and Inspection field, particularly relate to a kind of device and method for computer package damping, buffering performance measuring and evaluating.
Background technology
Along with the development in epoch, electronic product has become the indispensable daily living article of modern society, and the kind of electronic product, also from single notebook computer, develops ultra-thin, panel computer etc. rapidly.There is antidetonation of all kinds, resistance to bag, bag, the cover fallen in electronic product while occurring thereupon, as damping computer package, and shatter-resistant flat board cover etc.At present; the domestic research to case and bag damping performance is also little; only rest on after case and bag fall from certain altitude; check whether case and bag damage the stage; the namely fine or not stage of case and bag sole mass; and do not study case and bag that different materials makes to the defencive function of inclusion content and case and bag self damping performance and quantitative damping parameter, yet there are no the research of case and bag damping performance aspect abroad.For the various damping computer package that market is bragged about, its damping effect is difficult to define it and whether has damping performance under the condition not having method of testing and index, and quality supervision and testing agency also have no way of supervisory detection damping computer package on the market.
Summary of the invention
Based on this, for solve above-mentioned cannot the problem of checking and appraising to various damping case and bag damping, buffering effect performance, the invention provides a kind of device and method for computer package damping, buffering performance measuring and evaluating.
Its technical scheme is as follows:
For a device for computer package damping, buffering performance measuring and evaluating, comprise elevating mechanism, the control gear be connected with described elevating mechanism; Be positioned over the computer package to be measured on described elevating mechanism, be positioned over the notebook computer model in described computer package to be measured, and be installed on the one or more acceleration transducers on described notebook computer model; And the data acquisition mechanism to be connected with described acceleration transducer, the DPA data processing activity be connected with described data acquisition mechanism.
The notebook computer model that sensor is housed is placed in computer package to be measured, and be placed on elevating mechanism, make computer package to be measured at a certain angle freely falling body drop on the ground, by collecting the acceleration of process computer package to be measured in falling process and speed data, to obtain the damping performance of computer package to be measured, convenient and simple.
Below technical scheme is further described:
Preferably, described elevating mechanism comprises base plate, the vertical guide rail be fixedly connected with described base plate, the sample holder be slidably connected with described vertical guide rail, and drives sample holder along the motor of vertical guide rail movement, and described motor is connected with described control gear; Described sample holder does arbitrarily angled upset for clamping sample, makes sample holder and base plate keep an angle angle.Machine operation is controlled by control gear, thus drive sample holder to slide on vertical guide rail by motor, to reach the height of setting, and the angle of any Adjustment Tests folder of energy, sample can be made to do the movement of falling object with various angle after sample holder abrupt release sample.
Preferably, described notebook computer model adopts the shell sheet material of common notebook computer to make, and comprises interconnective display screen part and computer base part; Described display screen part and computer base part are provided with one or more sensor mounting groove, described sensor mounting groove is arranged in each angle and the centre position of described display screen part or computer base part respectively, and each described sensor mounting groove all has metallic channel.At diverse location, one or more acceleration transducer is installed according to different angle Selection of falling, and the metallic channel outlet selected is all the time with to fall direction contrary, wire can not be impacted falling of notebook computer model, and obtain multiple measuring data sample accurately as far as possible, guarantee the objectivity of test result.
Preferably, described acceleration transducer is triple channel acceleration transducer.
Preferably, the display translation mechanism be connected with described DPA data processing activity is also comprised.Described display translation mechanism can be computer monitor and printer, the data recorded is shown easily, can carry out observation analysis intuitively to measurement data.
The present invention also provides a kind of method for computer package damping, buffering performance measuring and evaluating, comprises the steps:
S110, the notebook computer model being provided with one or more acceleration transducer to be positioned in computer package to be measured, and this computer package to be measured is placed on the sample holder of elevating mechanism, be adjusted to certain angle;
S120, Control Assay folder moves up and down and reaches setting height, and discharges computer package to be measured and make it do the movement of falling object;
S130, start to drop to drop in base plate process at computer package to be measured, acceleration and the speed data of the computer package to be measured that acceleration transducer is collected are collected by data acquisition mechanism.
Below technical scheme is further described:
Preferably, step S120 also comprise by control gear Control Assay folder move up and down along vertical guide rail, reach desired location and after being adjusted to certain angle, be placed with the sample holder abrupt release of computer package to be measured, make computer package to be measured do the movement of falling object, and finally drop on the base plate of elevating mechanism.
Preferably, after step S130, also comprise DPA data processing activity the data that data collecting mechanism is collected are processed, and exported by display translation mechanism.
Preferably, the acceleration of computer package to be measured in tenesmus process, the velocity information of being collected data collecting mechanism by DPA data processing activity, process the accelerating curve, rate curve, displacement curve and the collision time data that obtain computer package to be measured.
Preferably, this assessment method is applicable to the test and appraisal of damping, buffering performance of the bag of the damping, buffering performance measuring and evaluating of the electronic product casings such as panel computer, large-screen mobile phone, portable power source, portable hard drive and these electronic products, bag, cover.
The present invention has following outstanding advantages:
(1) use this device to test at any time, and the damping, buffering performance of computer package can be measured fast;
(2) using notebook model to replace in test is really product, achieve Non-Destructive Testing, and this model can be reused, and reduces testing cost;
(3) this detection scheme applicability is extensive, and notebook computer model being replaced with other electronic product models just can the damping performance of corresponding other case for electronic organizer of test.
Accompanying drawing explanation
Fig. 1 is the total schematic block diagram for the device of computer package damping, buffering performance measuring and evaluating described in the embodiment of the present invention;
Fig. 2 is the elevating mechanism schematic diagram for the device of computer package damping, buffering performance measuring and evaluating described in the embodiment of the present invention;
Fig. 3 is the structural representation for the notebook computer model of the device of computer package damping, buffering performance measuring and evaluating described in the embodiment of the present invention;
Fig. 4 is the notebook computer model schematic side view for the device of computer package damping, buffering performance measuring and evaluating described in the embodiment of the present invention;
Fig. 5 is the step schematic diagram for the method for computer package damping, buffering performance measuring and evaluating described in the embodiment of the present invention;
Fig. 6 is the schematic flow sheet for the method for computer package damping, buffering performance measuring and evaluating described in the embodiment of the present invention.
Description of reference numerals: 100-notebook computer model, 110-display screen part, 120-computer base part, 122-sensor mounting groove, 124-metallic channel, 200-computer package to be measured, 300-elevating mechanism, 310-base plate, 320-vertical track, 330-sample holder, 340-motor, 400-control gear, 500-data acquisition mechanism, 600-DPA data processing activity, 700-display translation mechanism, 800-acceleration transducer.
Embodiment
Below embodiments of the invention are described in detail:
As shown in Figures 1 to 6, a kind of device for computer package damping, buffering performance measuring and evaluating, comprises elevating mechanism 300, the control gear 400 be connected with elevating mechanism 300.Be positioned over the computer package to be measured 200 on elevating mechanism 300, be positioned over the notebook computer model 100 in computer package 200 to be measured, and be installed on the one or more acceleration transducers 800 on notebook computer model 100.And the data acquisition mechanism 500 to be connected with acceleration transducer 800, the DPA data processing activity 600 be connected with data acquisition mechanism 500.
The notebook computer model 100 that one or more acceleration transducer 800 is housed is placed in computer package 200 to be measured, and be placed on elevating mechanism 300, computer package 200 to be measured is made to drop into base plate from certain altitude and certain angle freely falling body, by collecting the acceleration of process computer package 200 to be measured in falling process and speed data, to obtain the damping performance of computer package 200 to be measured, convenient and simple.
Particularly, as shown in Figure 2, elevating mechanism 300 comprises base plate 310, and this base plate 310 is steel plates that thickness is about 5cm (thickness also can be greater than 5cm), be used for simulating hard cement or stone ground, and this base plate 310 is placed on smooth practice ground face.Also comprise the vertical guide rail 320 be fixedly connected with base plate 310, this vertical guide rail 320 is vertical with base plate 310, highly can arrange as required, as being arranged to 5m or 10m or other height.Also comprise the sample holder 330 be slidably connected with vertical guide rail 320, this sample holder 330 comprises the train wheel bridge and lower plate that can be clamped together.And this sample holder 330 initial position and base plate 310 keeping parallelism, and can be adjusted to base plate angle is 30 °, 60 °, 90 ° or other are arbitrarily angled, train wheel bridge and lower plate are clamped in centre for the computer package to be measured 200 that notebook computer model 100 is housed, its feature is that the lower plate of this sample holder 330 can retracted in a flash or turn on, and makes computer package 200 to be measured can with certain angle free falling from sample holder 330.Be separated instantaneously with computer package 200 to be measured for realizing sample holder 330, horizontal pull mechanism (as tension spring) can be set in the lower plate side of sample holder 330, instantaneously the lower plate of sample holder 330 can be pulled open opposite side, make sample put down folder 330 and be separated with computer package 200 to be measured; Or a bearing diagonal mechanism (as supported cylinder) being set under the lower plate of sample holder 330, can supporting at the lower plate disconnecting in a flash bearing diagonal mechanism and sample holder 330, the rotation of the lower plate of sample holder 330 is fallen.And drive the motor 340 of sample holder 330 movement, this motor 340 is connected with control gear 400, this motor 340 is numerical-control motor, control motor 340 by control gear 400 to work, thus drive sample holder 330 to slide up and down on vertical guide rail 320, to reach the height (as rise to 1.2m reach ordinary desktop height) of setting, and discharge the computer package to be measured 200 be held on sample holder 330.
As shown in Figure 3 to Figure 4, notebook computer model 100 adopts the shell sheet material (as ABS plastic) of common notebook computer to make, and it comprises interconnective display screen part 110 and computer base part 120.The size weight of this notebook computer model 100 can be simulated actual computer dimensional weight and manufacture, and to simulate actual notebook computer product realistically as far as possible, makes testing inspection result more accurate.Adopt notebook computer model 100 to test, prototype can not be used to carry out detection test, only need test with lower-cost model, avoid causing damage to prototype, achieve Non-Destructive Testing, reduce testing cost.Except detecting except computer package, also can detect the bag of other electronic products or bag or cover, correspondingly model just changes the model of other electronic products into.
And, computer base part 120 and display screen part 110 all (not showing in Fig. 3) be provided with multiple sensor mounting groove 122, on the centre that sensor mounting groove 122 is arranged in computer base part 120 and display part 110 respectively and corner.According to four angles and the center of falling the one or more acceleration transducer 800 of angle Selection and be arranged on model, multiple measuring data sample can be obtained as far as possible, guarantee to detect real data exactly as far as possible, guarantee the objectivity of test result.Particularly, sensor mounting groove 122 is had in the middle of notebook computer model 100, and the metallic channel 124 to be communicated with sensor mounting groove 122, and offer a sensor mounting groove 122 in the computer base part 120 of this model and the centre of display part 110 and four angles.One or more acceleration transducer 800 can be installed in sensor mounting groove 122, and be coupled together with data acquisition mechanism 500 by wire degree of will speed up sensor 800.Herein, acceleration transducer 800 is triple channel acceleration transducer, this acceleration transducer 800 has high sensitivity, electromagnetism interference, volume is little, quality is light, durable, can the characteristic such as multichannel and multi-point sensing.And, the wire long enough connecting acceleration transducer 800 and data acquisition mechanism 500 enough carefully can not to computer package 200 to be measured fall and test has an impact.When detecting other electronic products, structure and method similar.
In addition, the data acquisition mechanism 500 that this computer package damping proving installation comprises, can be data collecting card, each acceleration transducer 800 is all connected with this data collecting card, the acceleration of notebook computer model 100 and velocity variations information during for gathering computer package 200 free falling to be measured.The DPA data processing activity 600 be connected with this data acquisition mechanism 500, can be common processor (also can be common desk computer), carries out calculation process to the data gathered.The display translation mechanism 700 be connected with acceleration information processing mechanism 600, display translation mechanism 700 can be computer monitor and printer, easily DPA data processing activity 600 is processed the data obtained to show, observation analysis can be carried out to measurement data intuitively.
As shown in FIG. 5 and 6, the present invention also provides a kind of method for computer package damping, buffering performance measuring and evaluating, comprises the steps:
S110, the notebook computer model 100 being provided with acceleration transducer 800 to be positioned in computer package 200 to be measured, and this computer package 200 to be measured is placed on elevating mechanism 300.Namely in each sensor mounting groove 122 of notebook computer model 300, acceleration transducer 800 has been installed, and utilize wire degree of the will speed up sensor 800 being fed through metallic channel 124 to be connected with data acquisition mechanism 500, and this notebook computer model 100 is placed in computer package 200 to be measured, be placed on the sample holder 330 of elevating mechanism 300 by this computer package 200 to be measured again, testing inspection preliminary work completes;
S120, control elevating mechanism 300 and move up and down and reach setting height, and discharge computer package 200 to be measured and make it do the movement of falling object.Namely the sample holder 330 controlling elevating mechanism 300 by control gear 400 moves up and down along vertical guide rail 320, after reaching desired location, be placed with sample holder 330 abrupt release of computer package 200 to be measured, computer package 200 to be measured is made to do the movement of falling object, and making computer package 200 to be measured finally drop on the base plate 310 of elevating mechanism 300, the computer package to be measured 200 that simulation test puts notebook computer model 100 falls the process fallen earthward from certain altitude;
S130, start to drop to drop in base plate process at computer package 200 to be measured, acceleration and the speed data of the computer package to be measured 200 that acceleration transducer 800 is collected are collected by data acquisition mechanism 500.By the acceleration of computer package to be measured 200 in tenesmus process, velocity information that DPA data processing activity 600 pairs of data collecting mechanisms 500 are collected, process the accelerating curve, rate curve, displacement curve and the collision time data that obtain computer package 200 to be measured.The data also comprising DPA data processing activity 600 pairs of data collecting mechanisms 500 collections process, and are exported by display translation mechanism 700, as directly shown relevant calibration curve information by display screen, result can also be printed with printer.
Be described for several actual tests detection case below:
As in one case, when carrying out testing inspection, arranging sample holder 330 with the angle angle of base plate 310 is 0 °, sample holder 330 lifting height is 1m, each installation acceleration transducer 800 in the computer base part 120 of notebook computer model 100 and the sensor mounting groove 122 of display part 110, wire is derived from the position that notebook computer model 100 quality is the lightest, then make computer package 200 free-electron model to be measured, the impact acceleration recording the acceleration transducer 800 in computer base part 120 is 480G, the impact acceleration of the acceleration transducer 800 in display part 110 is 400G.Test result illustrates, except computer package 200 to be measured can play except damping, buffering effect, the case material of notebook computer self also can play certain damping, buffering effect.
In another case, when carrying out testing inspection, arranging sample holder 330 with the angle angle of base plate 310 is 60 °, sample holder 330 lifting height is 0.8m, after making notebook computer model 100, rib first lands, in the sensor mounting groove 122 at the computer base part 120 of notebook computer model 100 and the centre of display part 110 and four angles, an acceleration transducer 800 is all installed, wire is rib centre position derivation before notebook computer model 100 along metallic channel 124, then make computer package 200 free-electron model to be measured, record four angles and middle acceleration transducer 800 impact acceleration from back to front in computer base part 120 and be respectively (120G, 122G) (wherein the acceleration transducer at two angles is measured on one side), 100G (middle acceleration transducer is measured), (78G, 80G) (acceleration transducer at two angles is measured on one side in addition), in display part 110, four angles and middle acceleration transducer 800 impact acceleration are from back to front (110G, 111G) (wherein the acceleration transducer at two angles is measured on one side), 90G (middle acceleration transducer is measured), (70G, 71G) (acceleration transducer at two angles is measured on one side in addition).Test result explanation, the rear rib part impact acceleration that notebook computer model 100 first lands is large, impact energy is progressively absorbed subsequently, the damping, buffering successful of computer package 200 to be measured, the test data of display part 110 illustrates that the case material of notebook computer self also can play certain damping, buffering effect except computer package 200 to be measured can play except damping, buffering effect.
In another case, when carrying out testing inspection, arranging sample holder 330 with the angle angle of base plate 310 is 90 °, sample holder 330 lifting height is 0.6m, after making notebook computer model 100, rib first lands, in the sensor mounting groove 122 at the computer base part 120 of notebook computer model 100 and the centre of display part 110 and four angles, an acceleration transducer 800 is all installed, wire is rib centre position derivation before notebook computer model 100 along metallic channel 124, then make computer 200 bag free-electron model to be measured, record four angles and middle acceleration transducer 800 impact acceleration from back to front in computer base part 120 and be respectively (100G, 102G) (wherein the acceleration transducer at two angles is measured on one side), 95G (middle acceleration transducer is measured), (90G, 92G) (acceleration transducer at two angles is measured on one side in addition), in display part 110, four angles and middle acceleration transducer 800 impact acceleration are from back to front respectively (101G, 102G) (wherein the acceleration transducer at two angles is measured on one side), 94G (middle acceleration transducer is measured), (91G, 92G) (acceleration transducer at two angles is measured on one side in addition).Test result illustrates, plays damping, buffering effect and depend primarily on computer package 200 to be measured rear rib position damping, buffering material when vertically falling.
In another case, when carrying out testing inspection, arranging sample holder 330 with the angle angle of base plate 310 is 90 °, sample holder 330 lifting height is 0.5m, an angle at notebook computer model 100 rear portion is first landed, in the computer base part 120 of notebook computer model 100 and the centre of display part 110, each in sensor mounting groove 122 on another angle on the angle landed and diagonal line an acceleration transducer 800 is installed, wire is rib centre position derivation before notebook computer model 100 along metallic channel 124, then make computer package 200 free-electron model to be measured, the impact acceleration recorded in computer base part 120 is from back to front respectively 250, 248G, 245G, in display part 110, impact acceleration is from back to front respectively 246G, 243G, 240G.Test result illustrates, plays the damping, buffering material that damping, buffering effect depends primarily on the corner positions of computer package 200 to be measured when vertically falling.
Above-mentioned testing result proves, the device and method for computer package damping, buffering performance measuring and evaluating provided by the invention can test out the damping performance of computer package fast and accurately, for quality supervision provides Fast nondestructive evaluation technology.In addition, technical scheme provided by the invention can also be used for the damping, buffering performance of the equipment such as bag, bag, cover detecting other electronic products (as mobile phone, panel computer etc.), and applicability is strong.
From the document reported, " the falling bruise fragility and damage border " of Lu Lixin highly carries out the test of free-electron model rigid shock to apple by the many groups of design, has essential distinction with the present invention in object and method; In addition, the product shock-dampening method introduced in the national standards such as GB/T15099, GB/T8171 is all that product free-electron model is observed product with or without damage, has the difference of essence with the present invention in principle and object.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this instructions is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. for a device for computer package damping, buffering performance measuring and evaluating, it is characterized in that, comprise elevating mechanism, the control gear be connected with described elevating mechanism;
Be positioned over the computer package to be measured on described elevating mechanism, be positioned over the notebook computer model in described computer package to be measured, and be installed on the one or more acceleration transducers on described notebook computer model;
And the data acquisition mechanism to be connected with described acceleration transducer, the DPA data processing activity be connected with described data acquisition mechanism.
2. the device for computer package damping, buffering performance measuring and evaluating according to claim 1, it is characterized in that, described elevating mechanism comprises base plate, the vertical guide rail be fixedly connected with described base plate, the sample holder be slidably connected with described vertical guide rail, and driving sample holder along the motor of vertical guide rail movement, described motor is connected with described control gear;
Described sample holder does arbitrarily angled upset for clamping sample, makes sample holder and base plate keep an angle angle.
3. the device for computer package damping, buffering performance measuring and evaluating according to claim 1, is characterized in that, described notebook computer model adopts the shell sheet material of common notebook computer to make, and comprises interconnective display screen part and computer base part;
Described display screen part and computer base part are provided with one or more sensor mounting groove, described sensor mounting groove is arranged in each angle and the centre position of described display screen part or computer base part respectively, and each described sensor mounting groove all has metallic channel.
4. the device for computer package damping, buffering performance measuring and evaluating according to claim 1, is characterized in that, described acceleration transducer is triple channel acceleration transducer.
5. the device for computer package damping, buffering performance measuring and evaluating according to claim 1, is characterized in that, also comprises the display translation mechanism be connected with described DPA data processing activity.
6. for a method for computer package damping, buffering performance measuring and evaluating, it is characterized in that, comprise the steps:
S110, the notebook computer model being provided with one or more acceleration transducer to be positioned in computer package to be measured, and this computer package is placed on the sample holder of elevating mechanism, be adjusted to certain angle;
S120, Control Assay folder moves up and down and reaches setting height, and discharges computer package to be measured and make it do the movement of falling object;
S130, start to drop to drop in base plate process at computer package to be measured, acceleration and the speed data of the computer package to be measured that acceleration transducer is collected are collected by data acquisition mechanism.
7. the method for computer package damping, buffering performance measuring and evaluating according to claim 6, it is characterized in that, step S120 also comprise by control gear Control Assay folder move up and down along vertical guide rail, reach desired location and after being adjusted to certain angle, the sample holder being placed with computer package to be measured is regained instantaneously, make computer package to be measured do the movement of falling object, and finally drop on the base plate of elevating mechanism.
8. the method for computer package damping, buffering performance measuring and evaluating according to claim 6 or 7, is characterized in that, also comprises DPA data processing activity and processes the data that data collecting mechanism is collected, and exported by display translation mechanism after step S130.
9. the method for computer package damping, buffering performance measuring and evaluating according to claim 8, it is characterized in that, by the acceleration of computer package to be measured in tenesmus process, velocity information that DPA data processing activity is collected data collecting mechanism, process the accelerating curve, rate curve, displacement curve and the collision time data that obtain computer package to be measured.
10. the method for computer package damping, buffering performance measuring and evaluating according to claim 8, it is characterized in that, this assessment method is applicable to the test and appraisal of damping, buffering performance of the bag of the damping, buffering performance measuring and evaluating of the electronic product casings such as panel computer, large-screen mobile phone, portable power source, portable hard drive and these electronic products, bag, cover.
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Application publication date: 20150128 |