High-power portable energy storage equipment
An energy storage device and high-power technology, which is applied in output power conversion devices, DC power input conversion to DC power output, instruments, etc. The upper limit, the effect of improving the power utilization efficiency
Active Publication Date: 2022-05-06
GUANGZHOU ALLPOWERS IND INT
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Problems solved by technology
However, the energy storage device with a single battery pack has a short battery life, and the total output power of the device is limited by the battery power, resulting in a low upper limit of the output power of the device.
When connecting battery packs in parallel, it is necessary to connect the battery packs with cables. There is a line loss in the cables. There is an upper limit in the combing of parallel battery packs and it is difficult to coordinate the power of multiple battery packs. As a result, the battery packs cannot be effectively output when charging each other. At the same time, high-current cables are connected in parallel. There are problems of easy heat generation, large use area, cumbersome operation and high cost
Method used
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[0021] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0022] like figure 1 As shown, the present invention discloses a high-power portable energy storage device, including a CAN bus, a DC output bus, N battery packs and N output current sharing circuits, and the i-th battery pack and the i-th output current-sharing circuit match , the value range of i is from one to N, and N is a positive integer greater than or equal to two;
[0023] The i-th battery pack is connected to the DC output bus through the i-th output current sharing circuit, and the i-th output current-sharing circuit obtains the voltage and current information of the first battery pack through the CAN bus and controls the i-th battery pack to output the corresp...
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The invention belongs to the technical field of energy storage equipment, and discloses high-power portable energy storage equipment, which comprises a CAN (Controller Area Network) bus, a direct current output bus, N battery packs and N output current sharing circuits, the ith battery pack is matched with the ith output current sharing circuit, the value range of i is 1-N, and N is a positive integer greater than or equal to 2; the ith battery pack is connected with the direct current output bus through the ith output current sharing circuit, and the ith output current sharing circuit obtains voltage and current information of the first battery pack through the CAN bus and controls the ith battery pack to output corresponding voltage and current. The beneficial effects are that the battery pack is connected with the DC output bus through the output current sharing circuit, more battery packs can be connected in parallel, and the output upper limit of the energy storage equipment is improved. And the energy storage equipment is connected without using a cable, so that the electric energy utilization efficiency of the energy storage equipment and the safety and convenience of the energy storage equipment can be improved.
Description
technical field [0001] The invention relates to the technical field of energy storage equipment, in particular to a high-power portable energy storage equipment. Background technique [0002] Most of the existing high-power energy storage products are one energy storage device corresponding to one battery pack, or a battery pack connected in parallel to expand the battery output power or extend the battery life of the device. However, the energy storage device with a single battery pack has a short battery life, and the total output power of the device is limited by the power of the battery, resulting in a low upper limit of the output power of the device. When connecting battery packs in parallel, it is necessary to connect the battery packs with cables. There is a line loss in the cables. There is an upper limit in the combing of parallel battery packs and it is difficult to coordinate the power of multiple battery packs. As a result, the battery packs cannot be effectivel...
Claims
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IPC IPC(8): H02J7/34H02J7/00H02M3/158H02M1/088H02M1/38
CPCH02J7/34H02J7/0063H02M3/1582H02M1/088H02M1/38H02J2207/20Y02E60/10
Inventor 钟小军
Owner GUANGZHOU ALLPOWERS IND INT