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Voltage-adjustable safe battery pack

A battery pack and adjustable technology, which is applied to battery pack parts, circuits, electrical components, etc., can solve the problems of battery pack burnout, battery pack damage, poor battery pack safety and economy, and achieve reliable and practical voltage output Wide range and good safety performance

Inactive Publication Date: 2016-10-26
浙江杜氏新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the current vehicle power battery may be short-circuited due to various factors during use, causing the battery pack to burn out. Since the batteries in the battery pack are connected together, when a short circuit occurs in one place, the excessive current May cause damage to the entire battery pack, making the battery pack poor in safety and economy

Method used

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  • Voltage-adjustable safe battery pack
  • Voltage-adjustable safe battery pack
  • Voltage-adjustable safe battery pack

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] according to Figure 1 to Figure 6 As shown, a safety battery pack with adjustable voltage includes a battery pack case 1 and a battery pack 2 inside the battery pack case 1, the number of battery packs 2 in the battery pack case 1 is more than two groups, and the battery pack 2 includes, The first terminal post 21 and the second terminal post 22 arranged at both ends of the battery pack 2, the battery cell 5 and the safety nickel belt 6 used to connect the battery cell 5 are arranged between adjacent battery packs 2 to adjust the battery. An adapter rod 3 and an adapter block 4 in the connection mode of the battery pack 2, and a connection terminal 11 connected to the battery pack 2 is arranged inside the battery pack case 1 .

[0036] The first terminal 21 includes a first long contact 211 and a first short contact 212; the second terminal 22 includes a second long contact 221 and a second short contact 222, and the first long contact 211 is set away from the transfer...

Embodiment 2

[0041] The difference from the above-mentioned embodiment 1 is that, according to Figure 7 As shown, the connecting hole 6311 is provided in the connecting area 631 of the main belt, and the positioning hole 611 is provided on the main belt body 61. The fastener 64, the connecting hole 6311 and the positioning hole are passed between the connecting area 631 and the main belt body 61. 611 is fixed, and the strap connection area 32 is welded and fixed to the battery cell 5. This structure allows the battery cell to be disassembled separately. When a single battery cell is damaged, it is convenient to replace the battery cell.

Embodiment 3

[0043] The difference from the above-mentioned embodiment 1 or 2 is that there are several through holes in the protection area 33 , the cross-sectional area of ​​the protection area is reduced by setting the through holes, and the porous structure is beneficial to the fracture of the protection area 33 .

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Abstract

The invention relates to the field of automotive power batteries, in particular to a voltage-adjustable safe battery pack. The voltage-adjustable safe battery pack comprises a battery pack shell and more than two batteries in the battery pack shell, wherein each battery comprises a first binding post, a second binding post, a single battery and a safe nickel strap; each first binding post and the corresponding binding post are arranged at two ends of the corresponding battery; each safe nickel strap is connected with the corresponding single battery; a connecting rod and a connecting block which are used for adjusting a battery connecting mode are arranged between each two adjacent batteries; wiring terminals which are connected with the batteries are arranged in the battery pack shell. The connection structure of the internal batteries can be changed, so that rated output voltage is adjusted, internal connection safety is good, voltage is output reliably, defective single batteries can be switched off immediately after accidental short-circuiting occurs, and the whole batteries are protected.

Description

technical field [0001] The invention relates to the field of automotive power batteries, in particular to a safe battery pack with adjustable voltage. Background technique [0002] As a new energy vehicle, electric vehicles have been widely promoted at present, and lithium-ion batteries have the advantages of small size, light weight, and no pollution to the environment, so battery packs composed of lithium-ion batteries are widely used in electric vehicle power batteries . For power batteries for electric vehicles, power batteries must meet the four requirements of high specific energy, high specific power, long life, and high safety, as well as the requirements for battery packs, so as to meet the needs of contemporary consumers for power vehicles. [0003] At present, cars usually use battery packs with designed rated voltages to assemble them in the car. However, different types of cars require different output voltages. As a result, the production of battery packs need...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M2/20H01M2/34H01M50/249H01M50/269H01M50/503H01M50/509H01M50/514H01M50/574
CPCH01M50/20H01M50/502H01M50/572Y02E60/10
Inventor 杜永庆宋建新郭颖李俊
Owner 浙江杜氏新能源科技有限公司
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