Lithium battery pack for high-power portable electric tool
A technology for power tools and lithium batteries, applied in electric vehicles, charge equalization circuits, battery parallel conversion, etc., can solve the problems of shortened battery life, low reliability, and complex hardware circuits, so as to avoid battery imbalance and prolong service life. , the effect of a wide range of applications
Active Publication Date: 2016-12-07
SUZHOU LUCK POWER ELECTRONICS TECH CO LTD
View PDF4 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, this solution uses multiple groups of parallel charging in lithium battery charging technology, which has disadvantages such as complex hardware circuit, low reliability, large size, high cost, and difficult wiring; at the same time, this design leads to inconsistent charging current of lithium battery packs, which brings The problem of battery imbalance shortens battery life and poses a safety hazard
In addition, this solution only connects the controllable switch when the lithium battery pack is discharged, lacks a discharge protection device, and the safety of the lithium battery cannot be guaranteed
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0043] Such as figure 1 As shown, embodiments of the present invention include:
[0044] A lithium battery pack for high-power portable electric tools, including a battery management system, a high-voltage lithium battery pack, and a discharge protection device;
[0045] The input end of the battery management system is connected to a DC12V-DC42V direct current power supply, and the output end of the high-voltage charging circuit is respectively connected to the positive pole and the negative pole of the high-voltag...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a lithium battery pack for a high-power portable electric tool. The lithium battery pack comprises a battery management system, a high-voltage lithium battery pack and a discharge protection device; the input end of the battery management system is connected to a direct-current power supply; the cathode of the output end is connected to the cathode of the high-voltage lithium battery pack; the anode of the output end is connected to the anode of the high-voltage lithium battery pack; the battery management system is also connected to the cathode and the anode of each string of battery of the high-voltage lithium battery pack; the input end of the discharge protection device is respectively connected to the cathode and the anode of the high-voltage lithium battery pack; and the output end is power supply output of the lithium battery pack. The lithium battery pack disclosed by the invention can be directly used as the direct-current power supply, and has the advantages of being small in volume, light in weight, high in power, low in cost, convenient to carry and the like; simultaneously, the battery management system can ensure constant charging current and duration of the lithium battery pack and voltage balance; and the service life of a battery is greatly prolonged.
Description
technical field [0001] The invention relates to the application field of lithium battery technology, in particular to a lithium battery pack for high-power portable electric tools, which is particularly suitable for use as a power supply for welding machines, cutting machines, AC mobile power supplies and small electric vehicles, and can be directly used as a DC power supply . Background technique [0002] Traditional electrical equipment is very inconvenient to use in the field, power outages, etc., especially for electric welding machines, cutting machines, AC mobile power supplies and other electrical equipment used in emergency, emergency repairs, emergency rescue and other places, usually need to carry fuel generators or drive mobile power Vehicles and other large power generation equipment to supply power. Such methods not only consume a lot of manpower and material resources, but also move slowly or even fail to move forward in some places without paved roads, delayi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/00H02J7/0024H02J7/0018
Inventor 佟天野
Owner SUZHOU LUCK POWER ELECTRONICS TECH CO LTD