CN2932635Y

CN2932635Y - Lithium battery protector device

Info

Publication number: CN2932635Y
Application number: CNU200520037925XU
Authority: CN
Inventors: 陈洪昉
Original assignee: Leton Technology Co Ltd
Current assignee: Leton Technology Co Ltd
Priority date: 2005-12-29
Filing date: 2005-12-29
Publication date: 2007-08-08
Anticipated expiration: 2015-12-29

Abstract

The utility model provides a lithium battery protector device, wherein the lithium batteries form a lithium group battery through the concatenation which through tapping points makes an accelerator signal judgment to each separately connected lithium battery through the battery protector. When the accelerator signal of the lithium battery reaches the low electric potential, the battery protector enters into the protecting mode, and when the accelerator signal of the lithium battery reaches the stationary electric potential, the accelerator signal electric potentials of the lithium battery and a receiving device are the same. The battery protector can monitor the charging and discharging conditions of each lithium battery through an optical display and a control circuit. When the receiving device receives the accelerator signal of the lithium battery, the battery protector can automatically judge the accelerator signal, and effectively control the size of the accelerator signal of the receiving device, preventing the lithium battery from excessively charging and discharging. Also an electric speed transmission and a motor which is connected with the battery protector can automatically reduce or cease the output of the accelerator signal according to the charging and discharging conditions of each lithium battery, facilitating the electric apparatus to achieve an excellent operation.

Description

The li-ion cell protection apparatus

Technical field

The utility model provides a kind of li-ion cell protection apparatus.

Background technology

The lithium battery A that general series connection is used; as depicted in figs. 1 and 2; because each lithium battery A characteristic difference; when lithium battery A via repeatedly filling; after discharge is used; each lithium battery A can produce decay; and the aging phenomenon of leakage of oil; the lithium battery A that makes each series connection use; the capital produces different electrical characteristics; yet, fill but can't effectively control lithium battery A because each lithium battery A all can be full of electric power; the situation of discharge is as the lithium battery A of each series connection use; fill at any one lithium battery A; when discharge reaches critical point; the protective circuit A1 of lithium battery A then ends action, to such an extent as to make other lithium batteries A can't continue charging, produces the situation that discharge process stops early; and then the time shortening that causes lithium battery A to use, and shorten lithium battery A and fill; the life-span that discharge is used.

So, how to overcome above-mentioned shortcoming, be the technological difficulties that inventor institute desire solves.

Summary of the invention

The purpose of this utility model provides a kind of li-ion cell protection apparatus; utilize to divide and fill the lithium battery group that joint makes series connection; be connected on the battery protector; do for each lithium battery and to fill; the protection of discharge; and this battery protector is via the light source display; can monitor filling of each lithium battery; discharged condition; and this receiving system and electronic transmission; again can be by the control circuit of battery protector; and filling according to each lithium battery; discharged condition; automatically reduce and stop the output of current/voltage, and then prevent that effectively lithium battery from producing the situation of over-discharge can.

Now be described in detail as follows with regard to the utility model conjunction with figs..Shown in Figure 4 as Fig. 3, the utility model comprises lithium battery B, divide fill joint C, battery protector D, receiving system E, electronic transmission F, motor F1 forms; Wherein this lithium battery B1 forms lithium battery group B via series connection, and the lithium battery group B of this series connection can fill joint C and each lithium battery B1 is connected on the battery protector D by branch, does the protection of charge and discharge so that each lithium battery B1 to be provided.

Wherein this branch fills joint C and divides wiring C1 via signal; can be with the lithium battery group B of each series connection; be connected on the battery protector D and judge automatically, when the throttle signal of lithium battery B1 reaches electronegative potential, then can enter the protected mode of outage by battery protector D.

Wherein this battery protector D can pass through light source display D1, reaches the charge and discharge situation that control circuit D2 monitors each lithium battery, when receiving system E receives the throttle signal, via the judgement of battery protector D, can effectively control the size of throttle signal output.

When wherein this receiving system E receives the throttle signal,, can effectively control the size of electronic transmission F throttle signal,, and cause lithium battery B to shorten useful life so that lithium battery B is unlikely to produce excessive charge and discharge by the control circuit D2 that battery protector D is provided with.

This electronic transmission F and motor F1 again; be connected on battery protector D and the lithium battery group B; and this is connected in electronic transmission F and the motor F1 of battery protector D; can be according to the charge and discharge situation of each lithium battery B1; after carrying out the judgement of throttle signal via battery protector D again; automatically reduce or stop the output of electronic transmission F throttle signal, make power equipment B2 can reach good running, prolong lithium battery group B useful life simultaneously.

For making the utility model show its progressive and practicality more, it is as follows that existing and prior art is done a comparative analysis:

The shortcoming of prior art:

1, on the lithium battery protective circuit is set, easily causes weight to increase and improve with cost.

When 2, arbitrary lithium battery reaches critical point, easily cause other lithium batteries can't continue charging.

3, lithium battery easily produces decay and leakage of oil aging phenomenon via repeatedly charge and discharge.

Advantage of the present utility model:

1, battery protector and serial lithium battery group are filled joint via branch and can be adopted separate type to connect.

2, filling joint via branch can provide each lithium battery to do the protection of charge and discharge.

3, battery protector is provided with control circuit, can monitor the throttle signal of receiving system.

4, receiving system can effectively avoid lithium battery to produce over-discharge can by battery protector.

5, electronic transmission is connected in battery protector, and on the lithium battery group of series connection.

6, can be according to the situation of charge and discharge, reduce automatically and the output of stop signal.

7, have progressive and practicality.

8, can promote industrial competitiveness.

Description of drawings

Fig. 1 is the stereogram of prior art

Fig. 2 is the cutaway view of prior art

Fig. 3 is a stereogram of the present utility model

Fig. 4 is a block diagram of the present utility model

Fig. 5 is a circuit diagram of the present utility model

Fig. 6 is an enforcement illustration of the present utility model

Fig. 7 is a partial enlarged drawing of the present utility model

Among the figure

A lithium battery A1 protective circuit

B lithium battery group B1 lithium battery

B2 power equipment C branch fills joint

The C1 signal divides wiring D battery protector

D1 light source display D2 control circuit

E receiving system F electronic transmission

F1 motor G emitter

Embodiment

Execution mode of the present utility model such as Fig. 4, Fig. 5, Fig. 6, shown in Figure 7; this lithium battery B1 forms lithium battery group B via series connection; and this serial lithium battery group B can fill joint C via branch; and signal divides wiring C1 and each lithium battery B1 is connected on the battery protector D; to provide lithium battery group B to do the protection of charge and discharge; the lithium battery group B that should connect is via the control of throttle signal again; the electronic equipment B2 that can replace engine power is so that electronic equipment B2 can produce the running and the use of throttle signal.

This battery protector D can pass through light source display D1; and control circuit D2 monitors the charge and discharge situation of each lithium battery B1; when receiving system E receives the throttle signal of emitter G; judgement by battery protector D throttle signal; the size of may command electronic transmission F throttle signal is not so that lithium battery group B produces excessive charge and discharge.

This branch fills the lithium battery B1 that joint C can connect each respectively again; doing the throttle signal via battery protector D judges automatically; when the voltage of lithium battery group B reaches electronegative potential; battery protector D then enters the pattern of lithium battery group B protection; and then effectively reduce the size of electronic transmission F throttle signal; and when the voltage of this lithium battery group B reaches stable potential; the throttle signal of electronic transmission F; then the throttle signal current potential with receiving system E is identical; and then effectively prolong series battery B useful life, and reduce the cost of lithium battery B1 loss.

This electronic transmission F and motor F1; be connected on battery protector D and the lithium battery group B; and this is connected in electronic transmission F and the motor F1 of battery protector D; can be according to the charge and discharge situation of each lithium battery B; carry out the judgement of throttle signal again via battery protector D; automatically reduce or stop the output of throttle signal, make power equipment B2 can reach good running, effectively prolong serial lithium battery group B useful life simultaneously.

This battery protector D further fills joint C by branch; lithium battery B can be connected in notebook computer, mobile phone, wireless interspeaker, telecontrolled aircraft, telecar, CD-ROM drive motor and relevant with in the electronic equipment of lithium battery B as electric power and the output of throttle signal; so that lithium battery B can be used as the electronic equipment B2 that running is used; and then can reach good running and alleviate the weight of lithium battery B, and can effectively avoid lithium battery B to produce over-discharge can.

The above only is of the present utility model one preferable possible embodiments, be not so promptly limit to claim of the present utility model, so equivalent structure that all this specifications of utilization and diagramatic content are done, directly or indirectly use other correlative technology fields, all should be contained in the scope of spiritual category of the present utility model.

Claims

1, a kind of li-ion cell protection apparatus, it is characterized in that including lithium battery, divide and fill joint, battery protector, receiving system, electronic transmission, motor, this lithium battery forms the lithium battery group via series connection, and this serial lithium battery group can be filled joint via branch, and each lithium battery is connected on the battery protector in the mode of tandem printing circuit, printed circuit in parallel, directly signal wiring, the wiring of tap signal respectively;

This branch fills joint can be with the lithium battery of each connection, do the judgement of throttle signal via battery protector, when the voltage of lithium battery reaches electronegative potential, battery protector then enters the li-ion cell protection pattern, reduce the size of electronic transmission throttle signal, when the voltage of this lithium battery reached stable potential, the electronic transmission then throttle signal current potential with receiving system was identical;

This battery protector can pass through the light source display, and control circuit is monitored the charge and discharge situation of each lithium battery;

This electronic transmission and motor are connected on electronic transmission and the lithium battery, and this is connected in the electronic transmission and the motor of battery protector, can reduce or stop the output of throttle more automatically via battery protector according to the charge and discharge situation of each lithium battery.

2, li-ion cell protection apparatus as claimed in claim 1, the throttle signal that it is characterized in that this receiving system further be made as voltage signal, pulse signal, digital signals, analog signal and relevant can be by controlling signal wired and the wireless signal transmission means.