System and method for preventing over-current damage in mobile phone tests
A mobile phone testing and overcurrent technology, applied in electrical components, wireless communication, etc., can solve problems such as damage to the internal parts of mobile phones, and achieve the effect of preventing damage
Inactive Publication Date: 2010-01-13
SHENZHEN FUTAIHONG PRECISION IND CO LTD +1
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Problems solved by technology
[0002] In existing mobile phone tests (such as figure 1 As shown), there is no current protection on the test fixture, so that when the power supply provides voltage to the mobile phone test, if an accident occurs (improper operation, sudden power failure or short circuit, etc.), the power supply Or there will be a large current passing through the test fixture, which will damage the internal parts of the mobile phone
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[0016] Such as figure 2 Shown is a schematic structural diagram of a system for preventing overcurrent damage in mobile phone testing in the present invention. The present invention and figure 1 Compared with the existing mobile phone test system shown in , an overcurrent protection element 3 is connected in series between the positive pole of the test fixture 1 and the positive pole of the power supply 2 . The test fixture 1 is connected with the mobile phone to be tested (not shown in the figure) to perform mobile phone testing. The overcurrent protection element 3 can be selected from a fuse, preferably a self-recovery fuse (Poly switch), because the service life of the self-recovery fuse is 2000 (cycles), and it is not like a general fuse that needs to be replaced once it is blown. A fuse opens when an overcurrent occurs and continues to conduct when the current returns to normal. In this embodiment, the overcurrent protection element 3 adopts a resettable fuse, and in...
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The invention provides a method for preventing over-current damage in mobile phone tests. The method comprises the following steps: providing a test fixture and a power supplier connected with the test fixture; connecting an over-current protection element in series between the positive electrodes of the test fixture and the power supplier; connecting the test fixture with a mobile phone to be tested, so as to test the mobile phone; automatically disconnecting the pathway from the power supplier to the test fixture by the over-current protection element when the current passing through the over-current protection element increases so sharply that the current is larger than or equal to the predetermined threshold. The invention further provides a system for preventing over-current damage in mobile phone tests. The invention can prevent the over-current generated in mobile phone tests from damaging the internal parts of the mobile phone to be tested.
Description
technical field [0001] The invention relates to a system and method for preventing overcurrent damage in mobile phone testing. Background technique [0002] In existing mobile phone tests (such as figure 1 As shown), there is no current protection on the test fixture, so that when the power supply provides voltage to the mobile phone test, if an accident occurs (improper operation, sudden power failure or short circuit, etc.), the power supply Or there will be a large current passing through the test fixture, which will damage the internal parts of the mobile phone. Contents of the invention [0003] In view of the above, it is necessary to provide a system for preventing overcurrent damage during mobile phone testing, which can prevent the internal parts of the mobile phone under test from being damaged by overcurrent generated during mobile phone testing. [0004] It is also necessary to provide a method for preventing overcurrent damage during mobile phone testing, wh...
Claims
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Login to View More IPC IPC(8): H04W24/00H04W88/02
Inventor 余国吉
Owner SHENZHEN FUTAIHONG PRECISION IND CO LTD