CN103941186A - Testing device for grounding switch - Google Patents
Testing device for grounding switch Download PDFInfo
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- CN103941186A CN103941186A CN201410200449.2A CN201410200449A CN103941186A CN 103941186 A CN103941186 A CN 103941186A CN 201410200449 A CN201410200449 A CN 201410200449A CN 103941186 A CN103941186 A CN 103941186A
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- 238000012360 testing method Methods 0.000 title claims abstract description 224
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- 235000004443 Ricinus communis Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000000541 pulsatile effect Effects 0.000 description 1
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Abstract
The embodiment of the invention discloses a testing device for a grounding switch, which comprises: a test bench; the main body of the telescopic mechanism is arranged on the test bench, the telescopic end of the telescopic mechanism points to the lower part of the test bench and can be connected with tested equipment positioned below the test bench, and a grounding switch is arranged in the tested equipment; and the driving circuit of the telescopic mechanism is connected with the signal output end of the control circuit. The testing device for the falling switch disclosed by the invention has the advantages that the working intensity of operators is reduced, the testing cost is reduced, the consistency and the accuracy of the test are ensured, and meanwhile, the time consumed by a large number of tests is shortened.
Description
Technical field
The invention belongs to the switch testing technical field that falls down to the ground, relate in particular to the switch test device that falls down to the ground.
Background technology
The switch that falls down to the ground is connected in the current supply circuit of electric equipment conventionally, when electric equipment run-off the straight or while falling down to the ground, the switch that falls down to the ground disconnects, thereby cuts off the current supply circuit of electric equipment, the electric equipment continuation operation generation security incident of avoiding run-off the straight or having fallen down to the ground.For example: in electric fan and electric heater, conventionally the switch that falls down to the ground can be set, thereby avoid electric fan and electric heater to topple over continuation operation afterwards, occur accident.
Device fabrication business will carry out to the switch that falls down to the ground in electric equipment the test of a large amount of break-make, judges the stability of the switch that falls down to the ground, and in some industry, will with the frequency of per minute 10 times, carry out 10000 break-makes tests to the switch that falls down to the ground.Test for the switch that falls down to the ground is all manually to complete at present, by operating personnel, is manually tilted or is mentioned equipment under test, equipment under test is set back afterwards again, completes once test.
The present test for the switch that falls down to the ground relies on manpower to complete completely, operating personnel's working strength is very large, and be limited to operating personnel's physical efficiency, in the time will testing in a large number, the whole test duration is very long, in addition, when operating personnel operate when lack of standardization, the consistance of test and accuracy also cannot guarantee.
Summary of the invention
In view of this, the object of the present invention is to provide the switch test device that falls down to the ground, can carry out on off test for the switch that falls down to the ground, reduce operating personnel's working strength, reduce testing cost, guarantee consistance and the accuracy of test, shorten the spent test duration of a large amount of test processs.
For achieving the above object, the invention provides following technical scheme:
The invention discloses a kind of switch test device that falls down to the ground, comprising:
Test board;
Telescoping mechanism, the main body of described telescoping mechanism is installed on described test board, the telescopic end of described telescoping mechanism points to the below of described test board, and described telescopic end can be connected with the equipment under test that is positioned at described test board below, in described equipment under test, is provided with the switch that falls down to the ground;
Control circuit, the driving circuit of described telescoping mechanism is connected with the signal output part of described control circuit, and described control circuit can be controlled described telescoping mechanism and drive described telescopic end to move back and forth.
Preferably, above-mentioned, fall down to the ground in switch test device, described telescoping mechanism is cylinder or hydraulic cylinder.
Preferably, the above-mentioned switch test device that falls down to the ground also comprises the fixed part of the telescopic end that is connected to described telescoping mechanism.
Preferably, above-mentioned, fall down to the ground in switch test device, described fixed part is rope or the hook that is articulated with the end of described telescopic end.
Preferably, the above-mentioned switch test device that falls down to the ground also comprises counter and display, and the input end of clock of described counter is connected to the signal output part of described control circuit, and the data output end of described counter is connected to described display.
Preferably, the above-mentioned switch test device that falls down to the ground also comprises digital comparator, first group of input end of described digital comparator is connected to the data output end of described counter, second group of input end of described digital comparator accesses preset electric signal, the output terminal of described digital comparator is connected to the control end of described control circuit, described digital comparator is exported secondary signal when the signal of described first group of input end equals the preset electric signal of described second group of input end, out of service to trigger described control circuit.
Preferably, the above-mentioned switch test device that falls down to the ground also comprises the several circuit of putting that are connected with second group of input end of described digital comparator.
Preferably, the above-mentioned switch test device that falls down to the ground also comprises testing agency, and described testing agency is connected with the current supply circuit of described equipment under test, sends prompting when described equipment under test breaks down.
Preferably, the above-mentioned switch test device that falls down to the ground also comprises gauge tap, and described gauge tap is series between the feeder ear and power supply of described control circuit.
Preferably, above-mentioned, fall down to the ground in switch test device, described test board comprises main body and support component, and described support component is installed on the downside of the main body of described test board.
As can be seen here, beneficial effect of the present invention is: the switch test device that falls down to the ground disclosed by the invention, the main body of extensible member is installed on test board, the telescopic end of extensible member can be connected with the equipment under test that is positioned over test board below, control circuit is controlled telescoping mechanism and is driven its telescopic end to move back and forth, thereby drive equipment under test to carry out elevating movement at vertical direction, complete the test to the switch that falls down to the ground in equipment under test.Based on the switch test device that falls down to the ground disclosed by the invention, reduced operating personnel's working strength, reduced testing cost, guaranteed consistance and the accuracy of test, also shortened the spent time of a large amount of tests simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of switch test device that falls down to the ground disclosed by the invention;
Fig. 2 is the fall down to the ground electrical structure schematic diagram of switch test device of another kind disclosed by the invention;
Fig. 3 is the fall down to the ground electrical structure schematic diagram of switch test device of another kind disclosed by the invention.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The present invention discloses a kind of switch test device that falls down to the ground, and can carry out on off test for the switch that falls down to the ground, and reduces operating personnel's working strength, shortens the spent test duration of a large amount of test processs.
Referring to Fig. 1, Fig. 1 is the structural representation of a kind of switch test device that falls down to the ground disclosed by the invention.This switch test device that falls down to the ground comprises test board 1, telescoping mechanism 2 and control circuit.
Wherein:
The main body 21 of telescoping mechanism 2 is installed on test board 1, and the telescopic end 22 of telescoping mechanism 2 points to the below of test board 1, and telescopic end 22 can be connected with the equipment under test that is positioned over the below of test board 1, in this equipment under test, is provided with the switch that falls down to the ground.
The signal output part of control circuit is connected with the driving circuit of telescoping mechanism 2, and control circuit can be controlled telescoping mechanism 2 and drive telescopic end 22 to move back and forth.The driving circuit of telescoping mechanism 2, when receiving high level signal, will drive telescopic end 22 to first direction motion, and the driving circuit of telescoping mechanism 2, when receiving low level signal, will drive telescopic end 22 to the second direction motion contrary with first direction.Therefore, control circuit adopts the circuit of sustainable output electrical signals, and in enforcement, control circuit can be pulse signal generator, can be also existing processor that can output pulse signal.
For the test process of the clearer explanation switch test device that falls down to the ground disclosed by the invention, first the switch that falls down to the ground is carried out to brief description.The switch that falls down to the ground mainly comprises ball-type switch and the elastic press type switch that falls down to the ground that falls down to the ground.For the ball-type switch that falls down to the ground, when equipment under test is normally placed, the ball-type switch connection circuit that falls down to the ground, when equipment under test run-off the straight, the ball-type switch that falls down to the ground answers disconnecting circuit to connect, otherwise determines that the ball-type switch that falls down to the ground breaks down.For the elastic press type switch that falls down to the ground, when equipment under test is normally placed, the elastic press type switch connection circuit that falls down to the ground, when the bottom of equipment under test built on stilts or installed surface, the elastic press type switch that falls down to the ground answers disconnecting circuit to connect, otherwise determines that the elastic press type switch that falls down to the ground breaks down.
Below the process of using the switch test device that falls down to the ground disclosed by the invention to test is described.
For the elastic press type switch that falls down to the ground, before test, equipment under test is placed on to the below of test board 1, connect the telescopic end 22 of equipment under test and telescoping mechanism 2.By control circuit, controlling telescoping mechanism 2 afterwards drives telescopic end 22 to move back and forth.In the process moving upward at telescopic end 22, in the process of namely moving to the direction near main body 21 at telescopic end 22, equipment under test is raised, if elastic press type falls down to the ground, switch disconnecting circuit connects, illustrate that this elastic press type switch that falls down to the ground is normal, if elastic press type falls down to the ground switch not disconnecting circuit connect, illustrate that this elastic press type switch that falls down to the ground breaks down.After telescopic end 22 moves downward, namely at telescopic end 22 to after doing exercises away from the direction of main body 21, equipment under test restPoses.
For the ball-type switch that falls down to the ground, before test, equipment under test is placed on to the below of test board 1, connect the telescopic end 22 of equipment under test and telescoping mechanism 2.Here it should be noted that, in carrying out on off test process, switch that ball-type is fallen down to the ground equipment under test to be tilted, therefore when connecting the telescopic end 22 of equipment under test and stretching structure 2, telescopic end 22 to be connected with the non-gravity point of equipment under test, and can not adopt and be rigidly connected between telescopic end 22 and equipment under test, and to guarantee that the angle between equipment under test and telescopic end 22 is adjustable, in enforcement, can connect telescopic end 22 and equipment under test with rope.By control circuit, controlling telescoping mechanism 2 afterwards drives telescopic end 22 to move back and forth.In the process moving upward at telescopic end 22, equipment under test is subject to direction pulling force straight up, because the application point of this pulling force deviates from the center of gravity of equipment under test, therefore equipment under test is in the process rising, one end of equipment under test is liftoff, occur, judge to fall down to the ground ball-type whether disconnecting circuit connects switch after equipment under test occurs tilting, whether definite ball-type switch that falls down to the ground breaks down thus.After telescopic end 22 moves downward, equipment under test restPoses.
The switch test device that falls down to the ground disclosed by the invention, the main body 21 of extensible member 2 is installed on test board 1, the telescopic end 22 of extensible member 2 can be connected with the equipment under test that is positioned over test board 1 below, control circuit is controlled telescoping mechanism 2 and is driven its telescopic end 22 to move back and forth, thereby drive equipment under test to carry out elevating movement at vertical direction, complete the test to the switch that falls down to the ground in equipment under test.Based on the switch test device that falls down to the ground disclosed by the invention, reduced operating personnel's working strength, reduced testing cost, guaranteed consistance and the accuracy of test, also shortened the spent time of a large amount of tests simultaneously.
Above-mentioned disclosed the falling down to the ground in switch test device of the present invention, telescoping mechanism 2 can adopt cylinder or hydraulic cylinder.The piston of cylinder and hydraulic cylinder is telescopic end 22.Control circuit output control signal, with the relay folding in the driving circuit of control cylinder or hydraulic cylinder, the open and close of solenoid valve are controlled in the folding of relay, and the opening and closing control cylinder of solenoid valve or the action of hydraulic cylinder, move reciprocatingly cylinder or hydraulic cylinder.
As preferred version, fixed part can be further set in the switch test device that falls down to the ground shown in Fig. 1, this fixed part is connected on the telescopic end 22 of telescoping mechanism 2.When the switch that falls down to the ground is carried out on off test, can utilize the fixed part falling down to the ground in switch test device to connect equipment under test, and do not need operating personnel to configure in addition web member, and this fixed part has been connected on telescopic end 22, therefore operating personnel only need to be connected and fixed parts and equipment under test and can test, the further workload that reduces operating personnel.
In enforcement, fixed part can adopt rope, also can adopt the hook of the end that is articulated with telescopic end 22.
Based on the above-mentioned disclosed switch test device that falls down to the ground of the present invention, can reduce operating personnel's working strength, but operating personnel still need the execution number of times of complicate statistics test.Applicant further improves the electric part of the switch test device that falls down to the ground, to further reduce operating personnel's workload, avoids artificial counting mistake to cause adverse effect to test process simultaneously.
Referring to Fig. 2, Fig. 2 is the fall down to the ground electrical structure schematic diagram of switch test device of another kind disclosed by the invention.Compare with the switch test device that falls down to the ground shown in Fig. 1, counter 4 and display 5 are further set.In Fig. 2 and the testing table of the not shown switch test device that falls down to the ground, also only show the driving circuit 23 of telescoping mechanism, about the physical construction of testing table and telescoping mechanism, refer to above and describe, emphatically the electrical structure of the switch test device that falls down to the ground is described here.
The signal output part of control circuit 3 is connected with the driving circuit of telescoping mechanism 23.
The input end of clock of counter 4 is connected to the signal output part of control circuit 3, and the particular level signal (as high level signal or low level signal) that 4 pairs of control circuits 3 of counter are exported by signal output part is counted.
Display 5 is connected with the data output end of counter 4, for the count value of display counter 4.
The switch that falls down to the ground is being carried out in the process of on off test, after connecting the telescopic end of equipment under test and telescoping mechanism, operating personnel carry out upper electric treatment to control circuit 3, control circuit 3 continues output pulse signal afterwards, the driving circuit of telescoping mechanism is when receiving high level signal, to drive telescopic end to move to first direction, the driving circuit of telescoping mechanism, when receiving low level signal, will drive telescopic end to the second direction motion contrary with first direction.That is to say, the every output pulsatile once of control circuit 3 signal, the telescopic end of telescoping mechanism is carried out a to-and-fro movement, completes once test.High level signal or the low level signal of 3 outputs of 4 pairs of control circuits of counter are counted, thereby complete the statistics to testing time, and show by display 5 simultaneously.
Based on the disclosed switch test device that falls down to the ground of Fig. 2 of the present invention, operating personnel are without manually tilting or lifting equipment under test, and without complicate statistics test quantity, further reduced operating personnel's workload, avoid the adverse effect that occurs that operating personnel's artificial counting mistake causes simultaneously.
Referring to Fig. 3, Fig. 3 is the fall down to the ground electrical structure schematic diagram of switch test device of another kind disclosed by the invention.Compare with the switch test device that falls down to the ground shown in Fig. 2, digital comparator 6 is further set.In Fig. 3 and the testing table of the not shown switch test device that falls down to the ground, also only show the driving circuit 23 of telescoping mechanism, about the physical construction of testing table and telescoping mechanism, refer to above and describe, emphatically the electrical structure of the switch test device that falls down to the ground is described here.
The signal output part of control circuit 3 is connected with the driving circuit of telescoping mechanism 23.
The input end of clock of counter 4 is connected to the signal output part of control circuit 3, and the particular level signal (as high level signal or low level signal) that 4 pairs of control circuits 3 of counter are exported by signal output part is counted.
Display 5 is connected with the data output end of counter 4, for the count value of display counter 4.
First group of input end of digital comparator 6 is connected to the data output end of counter 4, second group of input end of digital comparator 6 accesses preset electric signal, this electric signal is the electric signal corresponding with default value, and the output terminal of digital comparator 6 is connected with the control end of control circuit 3.
The switch that falls down to the ground is being carried out on off test process, and high level signal or the low level signal of 3 outputs of 4 pairs of control circuits of counter are counted, thereby complete the statistics to testing time, and show by display 5.Digital comparator 6 is the count value of first group of input end and the default value of second group of input end relatively, when the count value of first group of input end is less than the default value of second group of input end, output first signal, when the count value of first group of input end equals the default value of second group of input end, output secondary signal, out of service with trigger control circuit 3.Namely, the count value of 6 pairs of counters 4 of digital comparator and default testing time compare, when being less than default testing time, count value exports first signal, when equaling default testing time, count value exports secondary signal, and the signal of output is transferred to the control end of control circuit 3, the control end of control circuit 3 is when receiving secondary signal, out of service, thereby stops whole test process.
Based on the disclosed switch test device that falls down to the ground of Fig. 3 of the present invention, when the test for the switch that falls down to the ground reaches default testing time, control circuit is out of service, thereby stops whole test process, without operating personnel, carries out manual control.
Certainly, as a kind of embodiment, the electric control system of the switch test device that falls down to the ground only comprises that control circuit, counter and digital comparator are also fine.In this case, fall down to the ground switch test device when the test for the switch that falls down to the ground reaches default testing time, stop test process, no longer to operating personnel, show testing time.
In enforcement, operating personnel can use special-purpose equipment complete digital comparator 6 second group of input end manually put number.As preferred version, in the switch test device that falls down to the ground shown in Fig. 3, further put several circuit, this is put several circuit and is connected with second group of input end of digital comparator 6.Operating personnel can adjust the input value of second group of input end of comparer 6 by putting several circuit, namely adjust default testing time, make the use of the switch test device that falls down to the ground disclosed by the invention more flexible, are applicable to the test of different size.
As preferred implementation, can also in the above-mentioned switch test device that falls down to the ground, detection architecture be further set, this testing agency is connected with the current supply circuit of equipment under test, sends prompting when equipment under test breaks down.
The in the situation that of the normal placement of equipment under test and connection power supply, if equipment under test normally moves, in the current supply circuit of this equipment under test, there is electric current to flow through so, and the voltage at the power unit two ends of equipment under test is nonzero value, if equipment under test breaks down, the current supply circuit of this equipment under test is disconnected so, in the current supply circuit of equipment under test, does not have electric current to flow through, and the voltage at the power unit two ends of equipment under test is zero.The current value in the current supply circuit of equipment under test can detect in testing agency, or detects the magnitude of voltage at power unit two ends in equipment under test, to determine whether equipment under test breaks down, when definite equipment under test breaks down, sends prompting.As a kind of embodiment, testing agency is zero at the double current value detecting in current supply circuit, or when the double magnitude of voltage that power unit two ends in equipment under test detected is zero, determine that equipment under test breaks down, testing agency carries out the time interval of current detecting and voltage detecting and the telescopic end in control module control telescoping mechanism carries out once reciprocating time consistency.In enforcement, this prompting can be auditory tone cues, light prompt, or acousto-optic hint.
In addition, operating personnel can control by manually powering on the operation of control circuit with the mode of artificial power-off.In enforcement, can also in the switch test device that falls down to the ground, gauge tap be set, this gauge tap is series between the feeder ear and power supply of control circuit, and operating personnel control the running status of control circuit by this gauge tap.
In enforcement, can also further adjust travelling speed and the working time of telescopic end in telescoping mechanism, thereby further improve the dependability of the switch test device that falls down to the ground.
In addition, disclosed by the invention falling down to the ground in switch test device, test board 1 can only comprise a main body, before test, test board 1 is placed on bracing frame, guarantees that test board 1 and equipment under test have a segment distance at vertical direction, test afterwards again.Test board 1 also can adopt the structure shown in Fig. 1, comprises main body 11 and support component 12, and wherein support component 12 is installed on the downside of main body 11.As preferred version, can castor be set in the bottom of support component 12, so that operating personnel move the switch test device that falls down to the ground.In enforcement, testing table 1 can adopt aluminium section bar to build, and has both guaranteed enough intensity, can alleviate the weight of self again.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. the switch test device that falls down to the ground, is characterized in that, comprising:
Test board;
Telescoping mechanism, the main body of described telescoping mechanism is installed on described test board, the telescopic end of described telescoping mechanism points to the below of described test board, and described telescopic end can be connected with the equipment under test that is positioned at described test board below, in described equipment under test, is provided with the switch that falls down to the ground;
Control circuit, the driving circuit of described telescoping mechanism is connected with the signal output part of described control circuit, and described control circuit can be controlled described telescoping mechanism and drive described telescopic end to move back and forth.
2. the switch test device that falls down to the ground according to claim 1, is characterized in that, described telescoping mechanism is cylinder or hydraulic cylinder.
3. the switch test device that falls down to the ground according to claim 2, is characterized in that, also comprises the fixed part of the telescopic end that is connected to described telescoping mechanism.
4. the switch test device that falls down to the ground according to claim 3, is characterized in that, described fixed part is rope or the hook that is articulated with the end of described telescopic end.
5. according to the switch test device that falls down to the ground described in any one in claim 1 to 4, it is characterized in that, also comprise counter and display, the input end of clock of described counter is connected to the signal output part of described control circuit, and the data output end of described counter is connected to described display.
6. the switch test device that falls down to the ground according to claim 5, it is characterized in that, also comprise digital comparator, first group of input end of described digital comparator is connected to the data output end of described counter, second group of input end of described digital comparator accesses preset electric signal, the output terminal of described digital comparator is connected to the control end of described control circuit, described digital comparator is exported secondary signal when the signal of described first group of input end equals the preset electric signal of described second group of input end, out of service to trigger described control circuit.
7. the switch test device that falls down to the ground according to claim 6, is characterized in that, also comprises the several circuit of putting that are connected with second group of input end of described digital comparator.
8. according to the switch test device that falls down to the ground described in claim 6 or 7, it is characterized in that, also comprise testing agency, described testing agency is connected with the current supply circuit of described equipment under test, sends prompting when described equipment under test breaks down.
9. the switch test device that falls down to the ground according to claim 8, is characterized in that, also comprises gauge tap, and described gauge tap is series between the feeder ear and power supply of described control circuit.
10. the switch test device that falls down to the ground according to claim 9, is characterized in that, described test board comprises main body and support component, and described support component is installed on the downside of the main body of described test board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410200449.2A CN103941186B (en) | 2014-05-13 | 2014-05-13 | Testing device for grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410200449.2A CN103941186B (en) | 2014-05-13 | 2014-05-13 | Testing device for grounding switch |
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| Publication Number | Publication Date |
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| CN103941186A true CN103941186A (en) | 2014-07-23 |
| CN103941186B CN103941186B (en) | 2017-05-17 |
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| CN201410200449.2A Active CN103941186B (en) | 2014-05-13 | 2014-05-13 | Testing device for grounding switch |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509956A (en) * | 2009-03-20 | 2009-08-19 | 曹君 | Push button longevity detection device |
| CN101750224A (en) * | 2008-12-22 | 2010-06-23 | 海洋王照明科技股份有限公司 | Fatigue testing device of button switch |
| CN102520345A (en) * | 2011-12-06 | 2012-06-27 | 惠州Tcl移动通信有限公司 | Method for recording button usage times and apparatus thereof |
| EP2664936A1 (en) * | 2012-05-10 | 2013-11-20 | Omicron electronics GmbH | Measuring device for testing an electrical circuit breaker |
-
2014
- 2014-05-13 CN CN201410200449.2A patent/CN103941186B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750224A (en) * | 2008-12-22 | 2010-06-23 | 海洋王照明科技股份有限公司 | Fatigue testing device of button switch |
| CN101509956A (en) * | 2009-03-20 | 2009-08-19 | 曹君 | Push button longevity detection device |
| CN102520345A (en) * | 2011-12-06 | 2012-06-27 | 惠州Tcl移动通信有限公司 | Method for recording button usage times and apparatus thereof |
| EP2664936A1 (en) * | 2012-05-10 | 2013-11-20 | Omicron electronics GmbH | Measuring device for testing an electrical circuit breaker |
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| CN103941186B (en) | 2017-05-17 |
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