CN201608245U

CN201608245U - Cylindrical battery with internal series connection

Info

Publication number: CN201608245U
Application number: CN201020026412XU
Authority: CN
Inventors: 吴治国; 王奇志; 陈设军; 杨世权; 徐多
Original assignee: DONGGUAN JINYUAN BATTERY TECHNOLOGY CO LTD
Current assignee: DONGGUAN JINYUAN BATTERY TECHNOLOGY CO LTD
Priority date: 2010-01-11
Filing date: 2010-01-11
Publication date: 2010-10-13
Anticipated expiration: 2020-01-11

Abstract

The utility model discloses a cylindrical battery with internal series connection, comprising a steel shell, a nut cap, winding cores and gaskets, wherein the nut cap is arranged at the top part of the steel shell; the winding cores and the gaskets are arranged in the steel shell which is provided with a plurality of winding cores; the winding cores are connected together in series by a nickel strip; the upper gasket is arranged above the upper winding core; the lower gasket is arranged below the lower winding core; the middle gasket is arranged between the winding cores; the nickel strip passes through the middle gasket; and one end of the nickel strip is connected with a negative electrode of the upper winding core, and the other end thereof is connected with a positive electrode of the lower winding core. The cylindrical battery has simple structure, obtains the needed higher voltage by a mode that the winding cores are connected in the steel shell in series, saves the clearance of the two batteries in series, improves the space utilization rate of the batteries, can improve the capacity of battery unit, simultaneously reduces the use quantity of the steel shell, the nut cap and the gaskets, saves the raw materials and production cost, and is beneficial to energy conservation and environmental protection. The cylindrical battery is an economic and practical product.

Description

A kind of cylindrical battery of internal series-connection

Technical field

The utility model relates to the battery technology field, is specifically related to a kind of cylindrical battery at internal series-connection.

Background technology

As shown in Figure 1, when traditional lithium ion cylinder battery is made, single volume core body 3 is encapsulated into box hat 1, establish Upper gasket 4 above the volume core body 3, set pad 5 below, box hat top cover upper cap 2, go into electrolyte also with after the current activation toward box hat 1 interior liquid, a battery promptly completes.The operating voltage of lithium ion battery is 3.7V or 3.2V, obtain higher voltage if desired, then need multiple batteries is realized by connecting, as shown in Figure 2, by nickel strap 6 wherein the negative pole of a batteries and the positive pole (block 2 one ends are arranged) of another batteries link together, obtain higher voltage thus.The shortcoming of this technical scheme is, in order to obtain more the high voltage multiple batteries of need connecting, every batteries all has identical volume and structure, both taken after the series connection than large space, extra box hat, block and pad consumption have also been consumed, increase production cost, wasted material, be unfavorable for energy-conserving and environment-protective.

The utility model content

The technical problems to be solved in the utility model provides a kind of cylindrical battery of simple in structure, convenient and practical, production cost is low, space availability ratio is high internal series-connection.

For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of cylindrical battery of internal series-connection, comprise box hat, block, volume core body and pad, block is located at the box hat top, volume core body and pad are located at box hat inside, it is characterized in that: in box hat, be provided with several volume core bodys, be connected in series by nickel strap between the volume core body; Last volume is provided with Upper gasket above the core body, be provided with lower gasket below the last volume core body, is provided with Intermediate gasket between the volume core body; Nickel strap passes Intermediate gasket, and an end connects goes up volume core body negative pole, and the other end connects last volume core body positive pole.

Further, at least two of described volume core body settings, each volume core body is identical structure, according to different voltage requirements, can be chosen in the volume core body of internal series-connection respective numbers.

The utility model is simple in structure, obtain required more high voltage by mode at a plurality of volume core bodys of box hat internal series-connection, saved the gap of two battery series connection, improved the space availability ratio of battery, can improve the capacity of battery pack, also reduce the use amount of box hat, block and pad simultaneously, save raw material and production cost, helping energy-conserving and environment-protective, is a kind of economical and practical product.

Description of drawings

Fig. 1 is traditional single-unit cylindrical battery structural representation;

Fig. 2 is traditional cylinder battery strings connection connection diagram;

Fig. 3 is the utility model structural representation.

Among the figure, 1 is that box hat, 2 is block, and 3 are the volume core body, and 4 is Upper gasket, and 5 is lower gasket, and 6 is nickel strap, and 7 is Intermediate gasket.

Embodiment

In the present embodiment, in order to obtain to double the voltage of original battery, with reference to Fig. 3, the cylindrical battery of described internal series-connection comprises box hat 1, block 2, volume core body 3 and pad, and block 2 is located at box hat 1 top, and volume core body 3 and pad are located at box hat 1 inside; In box hat, be provided with two volume core bodys 3, be connected in series by nickel strap 6 between the volume core body 3; Be provided with Upper gasket 4 above the last volume core body 3, be provided with lower gasket 5 below the last volume core body 3, be provided with Intermediate gasket 7 between the volume core body 3; Nickel strap 6 passes Intermediate gasket 7, one ends and connect to go up volume core body 3 negative poles, and the other end connects last volume core body 3 positive poles, have block 2 an end for anodal, an end that does not have block 2 is a negative pole.

Each volume core body 3 is identical structure, can certainly be chosen in the volume core body 3 of internal series-connection respective numbers according to different voltage requirements.

Below the utility model is described in detail, the above only is one of the application preferred embodiment, when can not limiting practical range of the present utility model, allly does impartially to change and modify according to the application, all should still belong in the application's covering scope.

Claims

1. the cylindrical battery of an internal series-connection, comprise box hat, block, volume core body and pad, block is located at the box hat top, and volume core body and pad are located at box hat inside, it is characterized in that: in box hat, be provided with several volume core bodys, be connected in series by nickel strap between the volume core body; Last volume is provided with Upper gasket above the core body, be provided with lower gasket below the last volume core body, is provided with Intermediate gasket between the volume core body; Nickel strap passes Intermediate gasket, and an end connects goes up volume core body negative pole, and the other end connects last volume core body positive pole.

2. the cylindrical battery of internal series-connection according to claim 1 is characterized in that: at least two of described volume core body settings, each volume core body is identical structure.