Electric leakage detection device and battery pack
A battery pack and detection technology, which is applied in the field of electric leakage detection, can solve problems such as case leakage, wire damage, and power passing through, and achieve the effect of avoiding electrical disasters
Pending Publication Date: 2019-12-31
MOBILETRON ELECTRONICS
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Problems solved by technology
[0003] However, electricity also has disadvantages. If people accidentally get an electric shock, it is likely to cause casualties. Among them, the reason why people accidentally touch electricity is caused by leakage. The wires are damaged due to old age, and there is electricity passing through the damage, or there is a certain potential difference between the electrical shell and the electrical line after being connected to the ground for some reason, which leads to the leakage of the shell
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[0035] In order to illustrate the present invention more clearly, a number of preferred embodiments are exemplified and described in detail with accompanying drawings as follows. Please refer to figure 1 and figure 2 Shown is the leakage detection device 100 of the first preferred embodiment of the present invention, wherein the leakage detection device 100 is electrically connected to a DC power supply such as a battery pack 200, and the battery pack 200 includes a battery cell Group 202 , a switch element 204 and a control unit 206 .
[0036] The battery pack 202 has a positive pole 202a and a negative pole 202b, the positive pole 202a is electrically connected to the positive terminal 200a, the negative pole 202b is electrically connected to the negative terminal 200b through the switching element 204, and the positive terminal 200a and the negative terminal 200b are electrically connected to the load L. The switching element 204 is electrically connected between the po...
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An electric leakage detection device includes at least one optical coupler, a voltage dividing unit, an analog-digital conversion unit and an arithmetic unit, wherein the optical coupler outputs a corresponding electrical signal according to the degree of electric leakage of a DC power supply; the voltage dividing unit outputs the electric signal after voltage division to the analog-digital conversion unit to be converted into a digital signal; and finally, the arithmetic unit compares a digital value corresponding to the digital signal with a reference value, and outputs an electric leakage signal when the difference between the digital value and the reference value is greater than a predetermined difference. A battery pack includes a battery core group, a switching element and a controlunit, wherein the control unit controls the switching element to cut off the electrical connection between the battery core group and the load after receiving the electric leakage signal to interruptpower output to the load.
Description
technical field [0001] The invention relates to electric leakage detection, in particular to a detection device and a battery pack which can determine whether there is electric leakage at the moment of electric leakage. Background technique [0002] It is known that the discovery of electricity has changed the life style of modern people. Many daily necessities rely on electric energy and have many breakthrough developments, which in turn improve people's living standards and convenience. Among them, electricity is passed through electrical circuits and through electronic or power components. transmission. [0003] However, electricity also has disadvantages. If people accidentally get an electric shock, it is likely to cause casualties. Among them, the reason why people accidentally touch electricity is caused by leakage. The wires are damaged due to old age, and there is electricity passing through the damage, or there is a certain potential difference between the electri...
Claims
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Login to View More IPC IPC(8): G01R31/392G01R31/02
Inventor 林孟昌
Owner MOBILETRON ELECTRONICS