CN100359780C - Chargeable cell unit whose connection state can be controlled and assembled battery - Google Patents
Chargeable cell unit whose connection state can be controlled and assembled battery Download PDFInfo
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- CN100359780C CN100359780C CNB031092403A CN03109240A CN100359780C CN 100359780 C CN100359780 C CN 100359780C CN B031092403 A CNB031092403 A CN B031092403A CN 03109240 A CN03109240 A CN 03109240A CN 100359780 C CN100359780 C CN 100359780C
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Abstract
The present invention relates to a rechargeable battery unit with a controllable connection state, and a combined battery. The rechargeable battery unit is at least composed of a rechargeable electric core, a first control switch and a second control switch, wherein the first control switch is used for switching on or off the rechargeable electric core and external circuits; the second control switch is used for bypassing the rechargeable electric core when the rechargeable electric core and the external circuits are cut off by the first control switch. The present invention can detect and control the rechargeable electric core in the mode of one-to-one correspondence, and an external central control unit (CPU) is connected to the circuits so that each rechargeable electric core in a formed battery set and the combined battery is effectively detected and controlled, and thus, the influence on the performance of the whole combined battery because of the damage or the performance reduction of a single rechargeable electric core unit is eliminated; the present invention is possible to keep the stable performance condition of the whole combined battery, and has high value of practical application.
Description
Technical field
The present invention relates to controlled rechargeable cell of a kind of connection status and battery, especially a kind of can the unlatching or the rechargeable cell of closing control and battery pack, the assembled battery that adopts this rechargeable battery to make the electric core that constitutes rechargeable cell as required.Belong to battery manufacturing technology field.
Background technology
At present, the chargeable assembled battery used always of people is connected some chargeable cells and makes.The chargeable cell of forming battery pack is called as chargeable electric core.
Common cells in notebook computer is exactly a kind of chargeable assembled battery, though have different output voltages and external shape between the various cells in notebook computer, its internal structure remains by some chargeable electric cores being carried out series, parallel or mix to connect and constitutes.
Though advantages such as chargeable assembled battery is convenient, flexible, removable in use,, also exist deficiency, it mainly shows as: the quality and the performance of each chargeable electric core exist difference.
In assembled battery, each chargeable electric core all is to be encapsulated in the housing of assembled battery.When certain chargeable electric core or battery pack break down, as short circuit, open circuit; Chargeable electric core occurs overcharging or during the overdischarge phenomenon, not only can have influence on the serviceability in loop, place, also might have influence on the serviceability of whole assembled battery, and the serviceability that shows as whole assembled battery descends or fault.
Because existing chargeable assembled battery can't be judged the chargeable electric core that breaks down, so when assembled battery decreased performance occurs because of chargeable electric core fault, can only change whole assembled battery, thereby cause waste, particularly because the price higher relatively (as cells in notebook computer) of chargeable assembled battery, and scrapping of entire combination battery will cause comparatively serious economic loss.
In addition, assembled battery commonly used at work, usually all be unified discharge, the unified charging, because the quality of each electric core differs, make electric core in assembled battery or the battery pack in discharge or when charging, the electric weight of inner actual consumption or filling is balanced inadequately, the electric core of working under this imbalance for a long time, be easier to break down, thereby influence battery pack and the performance of the assembled battery formed.
Have, work as battery pack, when particularly indivedual electric cores broke down in the assembled battery that is made of some battery pack, the phenomenon of spread of voltage can appear in the battery pack at this electricity core place, thereby influence is to the power supply quality of power consumption equipment.
Summary of the invention
Main purpose of the present invention is at above-mentioned owing to chargeable electric core fault causes whole assembled battery fault and the problem of scrapping provides a kind of connection status controlled rechargeable cell, and the loop at this rechargeable cell place can be closed and carry out by-path turn-on.
The battery pack that provides one or more to utilize above-mentioned rechargeable cell to form is provided, any one rechargeable cell all can be isolated from this battery pack in this battery pack, simultaneously, different connecting modes according to rechargeable cell, also can provide and have discharged in series, the battery pack of charged in parallel function is stablized the serviceability of chargeable electric core.
A further object of the present invention is to provide a kind of assembled battery that above-mentioned battery pack is carried out parallel connection or series connection or series-parallel connection and make, this assembled battery has charge and discharge mode flexibly, can't break down and causes whole assembled battery to scrap because of forming in this assembled battery any electric core.
Another purpose of the present invention is to provide a kind of assembled battery with constant voltage control, after indivedual electric cores are isolated, by constant voltage control, can keep the output voltage stabilization of this assembled battery.
The objective of the invention is to realize respectively by the following technical scheme:
The rechargeable cell that a kind of connection status is controlled, described rechargeable cell are made of chargeable electric core, first control switch and second control switch at least; Described chargeable electric core is with in parallel with second control switch again after first control switch is connected; Described first control switch, second control switch have only a switch connection simultaneously when work; Wherein, first control switch is used for chargeable electric core and external circuit are switched on or switched off, second control switch is used for when first control switch disconnects chargeable electric core and external circuit should chargeable electric core bypass, and described second control switch is switching transistor or relay or low-resistance field effect transistor; The control end of described switching transistor or low-resistance field effect transistor or the control loop of relay connect the control signal of external control devices, be used for external control devices Bypass Control is carried out in the loop at this chargeable electric core place, pass through this set, the battery unit that breaks down is isolated, and, can not influence the operate as normal of all the other rechargeable cell by bypass.
In this programme, telemetry circuit is set in rechargeable cell, the input end of this telemetry circuit is connected with the output of chargeable electric core, detects in order to the operating state to chargeable electric core.
Described telemetry circuit has discharge control signal end and charging control signal end; Described discharge control signal end, charging control signal end are connected with the signal input end of described first control switch, and the discharge, the charging that are used for this chargeable electric core are controlled.
First control switch can adopt switching transistor or relay or low-resistance MOSFET, and its control loop is connected with the discharge control signal or the charging control signal of telemetry circuit.
In addition, first control switch can also be the gate-controlled switch circuit that is composed in series by two switching transistors that are parallel with unidirectional breakover element or relay or low-resistance MOSFET, this gate-controlled switch circuit has two signal input end, and be connected with discharge control signal end, the charging control signal end of described telemetry circuit respectively, jointly control in order to discharge or charging chargeable electric core.
The control signal of described first control switch also is connected with external control signal, being used for external equipment controls the discharge or the charging process of this chargeable electric core, simultaneously, the output of described chargeable electric core also is equipped with the holding wire that connects external control devices, is used for the voltage signal output with described chargeable electric core.
The second above-mentioned control switch also can be switching transistor or relay or low-resistance MOSFET; The control end of described switching transistor or low-resistance MOSFET or the control loop of relay connect the control signal of external control devices, be used for external control devices Bypass Control is carried out in the loop at this chargeable electric core place.Above-mentioned chargeable electric core can adopt lithium-ion electric core or ni-mh electricity core or NI-G electricity core.The technical scheme of utilizing the battery pack that above-mentioned rechargeable cell forms is that above-mentioned rechargeable cell is formed battery pack, and this battery pack is composed in series by an above-described rechargeable cell.Be in series with selector switch between rechargeable cell, the common port of this selector switch connects the upper level rechargeable cell, and its first selecting side connects the negative pole of next stage rechargeable cell or battery pack; The negative pole of its second selection termination battery pack.
The positive pole of described rechargeable cell is connected with the positive pole of charge power supply by unidirectional breakover element, and it is the charging current direction that the conducting of this unidirectional breakover element is provided with direction.
The battery pack of forming also is connected with charge power supply or discharge loop respectively by discharging and recharging selector switch, this common port that discharges and recharges selector switch is connected to the cathode output end of this battery pack, and these two outputs that discharge and recharge selector switch connect charge power supply or discharge loop respectively; Discharge and recharge the charge or discharge state of selector switch control battery pack by this.
The technical scheme of assembled battery is that the battery pack of being made up of above-mentioned rechargeable cell more than a group is in parallel again and form after parallel with one another or series connection or the series connection.
Be provided with the discharge bus in this assembled battery; The positive pole of described battery pack is connected with described discharge bus, perhaps is connected with described discharge bus by unidirectional breakover element; The set direction that connects of described unidirectional breakover element is the discharging current direction.
Also be provided with the charging bus in this assembled battery; The positive pole of described battery pack is connected with described charging bus, perhaps is connected with described charging bus by unidirectional breakover element; The set direction that connects of described unidirectional breakover element is the charging current direction.
Described battery pack is connected mutually by selector switch, and perhaps described battery pack is composed in series a string joint group by selector switch, is composed in parallel by the described series connection group more than a group again; The common port of described selector switch is connected with the negative pole of described battery pack, and an output of this selector switch is connected with the positive pole of adjacent cell group, and another output of this selector switch connects the negative pole of described assembled battery.
The positive pole of described battery pack is connected with the positive pole of charge power supply by unidirectional breakover element; The conducting of described unidirectional breakover element is provided with the charging current direction of direction for this battery pack.
The positive pole of described series connection group is connected with the positive pole of charge power supply by another selector switch or is connected with the discharge output; Can carry out the charge or discharge state to this series connection group by described another selector switch switches.
At last, the technical scheme that realization has the assembled battery of constant voltage control is in above-mentioned arbitrary assembled battery constant-voltage control circuit to be set, and wherein, the output of battery pack connects the input of described constant voltage circuit; Described constant-voltage control circuit is output as the output of described assembled battery.
Described constant-voltage control circuit has input control module and power output unit at least; Described input control module has two inputs at least, and wherein, first input end is connected with the input of described constant-voltage control circuit, is used to import the output by described battery pack; Second input is connected with the output of described constant-voltage control circuit; Be used for the output of this constant voltage circuit is fed back; The output of described input control module is connected with the signal input end of described power output unit; The output of described power output unit is the output of constant-voltage control circuit.
Described input control module also is provided with output voltage and regulates input, is used to import outside regulated voltage signal.
By technique scheme as can be known, chargeable electric core is by with in parallel with second control switch again after first control switch is connected, just can realize control to this chargeable electric core operating state, no matter it is in discharge condition or charged state, as long as break down, can this chargeable electric core be isolated from the loop at its place by the disconnection of first control switch, the conducting of second control switch.Be the chargeable electric core that guarantees that discovery is in time broken down, and in time handle, the output voltage of chargeable electric core is subjected to the detection of telemetry circuit all the time, when chargeable electric core overdischarge occurs or overcharges phenomenon, because significantly reducing or raising has appearred in output voltage, telemetry circuit just can be exported control signal, and the chargeable electric core that is detected is cut off, make its battery pack that breaks away from the place, and then guarantee the stable of whole assembled battery operating state and serviceability.
In addition, in technique scheme, also the status signal of chargeable electric core can be connected with the CPU (CPU) of outside, make this chargeable electric core be subjected to dual control, not only can detect control to this chargeable electric core by telemetry circuit, and can also carry out special mandatory control by computer to it as required.
Utilize technique scheme, can constitute the rechargeable cell that comprises two kinds of control switchs and telemetry circuit, utilize this rechargeable cell can form multiple battery group and assembled battery.
The present invention is by detecting control one to one and outside central control unit (CPU) being inserted in this circuit to chargeable electric core, realized forming effective detection control of each the chargeable electric core in battery pack, the assembled battery, and then for eliminate because of the damage of single rechargeable cell or decreased performance to whole assembled battery Effect on Performance, the stable possibility that provides of performance condition of whole assembled battery is provided, has higher actual application value.
Description of drawings
Fig. 1 is the schematic diagram of rechargeable cell involved in the present invention;
Fig. 2 is the circuit theory diagrams of a specific embodiment of rechargeable cell involved in the present invention;
Fig. 3 is the series battery schematic diagram that rechargeable cell involved in the present invention is formed;
Fig. 4 is discharged in series/charged in parallel battery pack schematic diagram that rechargeable cell involved in the present invention is formed;
A kind of assembled battery schematic diagram that Fig. 5 forms for series battery shown in Figure 3;
Fig. 6 is for carrying out the assembled battery schematic diagram of discharged in series/charged in parallel to series battery;
Fig. 7 is the battery pack shown in Figure 4 schematic diagram that constitutes assembled battery in parallel;
Fig. 8 is the assembled battery schematic diagram with constant-voltage control circuit;
Fig. 9 is a specific embodiment circuit diagram of constant-voltage control circuit in the assembled battery involved in the present invention.
Embodiment
Below, in conjunction with specific embodiments and with reference to accompanying drawing, the present invention is described in further detail.
The basis of battery pack provided by the present invention, assembled battery is: the technology implementation scheme of the rechargeable cell that connection status is controlled, and its principle is as follows:
As shown in Figure 1, the negative pole of the chargeable electric core A first control switch K1 that connecting, the second control switch K2 forms a basic rechargeable cell with after chargeable electric core A, the first control switch K1 are in parallel.At work, when the first control switch K1 connected, the second control switch K2 was in open position; Otherwise when the first control switch K1 disconnected, the second control switch K2 was in on-position.
After above-mentioned rechargeable cell and other rechargeable cell are composed in series battery pack, when this rechargeable cell breaks down or need to be isolated, the first control switch K1 disconnects, the second control switch K2 connects immediately and will directly be connected with two rechargeable cell of higher level, subordinate of this rechargeable cell series connection, thereby the series battery that guarantees this rechargeable cell place can work on.
By above-mentioned principle, can obtain the specific embodiment of the controlled rechargeable cell of connection status, battery pack and assembled battery.
Embodiment one
Figure 2 shows that the specific embodiment circuit theory diagrams of the rechargeable cell that connection status is controlled.
In the present embodiment, the detection line of telemetry circuit adopts R5421 chip IC 1; First control switch is by metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, the two-way gate-controlled switch circuit that diode D5, diode D6 constitute; Second control switch is and chargeable electric core A, first control switch switch element metal-oxide-semiconductor Q3 in parallel.
In the above-mentioned two-way gate-controlled switch circuit, the drain electrode of metal-oxide-semiconductor Q1 is connected with the negative pole of chargeable electric core, the source electrode butt joint of metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, and the negative pole of the rechargeable cell that is constituted is served as in the drain electrode of metal-oxide-semiconductor Q2.
The positive pole of diode D5 is connected with the drain electrode of metal-oxide-semiconductor Q1, and negative pole is connected with the source electrode of metal-oxide-semiconductor Q1; The positive pole of diode D6 is connected with the drain electrode of metal-oxide-semiconductor Q2, and negative pole is connected with the source electrode of metal-oxide-semiconductor Q2.
Metal-oxide-semiconductor Q1 also is connected by diode D2, diode D3 with control signal output ends 1 pin, 3 pin of chip IC 1 respectively with the common signal input end as this two-way gate-controlled switch circuit of the grid of metal-oxide-semiconductor Q2.
5 pin of chip IC 1 are connected to the positive pole of chargeable electric core A by the dividing potential drop of resistance R 1, and 6 pin of chip IC 1 are connected with the negative pole of chargeable electric core A, and the voltage of this chargeable electric core A is carried out sample detecting
When the chargeable electric core A that is detected is in the regular picture state, detect the 1 pin output high potential of control module IC1 chip, 3 pin output electronegative potential makes metal-oxide-semiconductor Q1 conducting, and metal-oxide-semiconductor Q2 turn-offs, and electric current flows out from positive pole.
When the chargeable electric core A that is detected is in normal charging condition, detect the 1 pin output electronegative potential of control module IC1 chip, 3 pin output high potential makes metal-oxide-semiconductor Q1 turn-off metal-oxide-semiconductor Q2 conducting.Electric current flows into from positive pole.
When the output voltage of the chargeable electric core A that is detected is crossed when low, show that this electricity core is in over-discharge state and maybe may breaks down, detect 1 pin, 3 pin of control module IC1 chip and export electronegative potential simultaneously, metal-oxide-semiconductor Q1, Q2 are turn-offed, the path of this electricity core is cut off.
Equally, when the output voltage of the chargeable electric core A that is detected is too high, show that this electricity core was in
Equally, when the output voltage of the chargeable electric core A that is detected is too high, show that this electricity core is in overcharge condition, detection control module IC1 chip sends control signal and should turn-off by the electricity core, makes it can temporarily break away from charged state.
In foregoing circuit, the positive pole of chargeable electric core A also connects establishes the signal input part of a voltage signal output line P to CPU (CPU); The signal output part of CPU (CPU) has the line of three control signals to be connect to be set in the above-mentioned telemetry circuit, wherein two control signal wire k1, k2 connect by diode D1, D4 respectively and are connected with the control end of metal-oxide-semiconductor Q1, Q2, thus the State Control that can force charge and discharge or partition to this electricity core.And the another one control signal wire is connected the control end of the second control switch metal-oxide-semiconductor Q3.
When above-mentioned detection control module IC1 chip or CPU (CPU) is cut off this chargeable electric core A or by force during blocked operation, the control end of metal-oxide-semiconductor Q3 receives the high potential control signal k3 of CPU (CPU) output, with this metal-oxide-semiconductor Q3 conducting, this chargeable electric core A is connected by bypass, and then make and be connected other upper and lower chargeable electric cores of this chargeable electric core A and directly be connected in series, reach this chargeable electric core A purpose of isolation.
In addition, the short-circuit signal of chip IC 1 detection input 2 pin are connected with the negative pole of chargeable electric core A by resistance R 2.When the chargeable electric core A that is detected is short-circuited fault, because 2 pin obtain a relative high potential, logical circuit in the chip IC 1 will be by 1 pin output high potential, metal-oxide-semiconductor Q1 is turned off, thereby the current path of the chargeable electric core A that detected is turned off, and this chargeable electric core A and other chargeable electric core are isolated.
By the controlled rechargeable cell of the connection status that the foregoing description provided, can form multiple battery group and assembled battery.
Embodiment two
As shown in Figure 3, controlled rechargeable cell B1, B2, the B3 of the connection status that adopts embodiment one to be provided forms a series connection battery pack, the just very DC end of this battery pack.Among the figure, three rechargeable cell all have and are used for the signal end that is connected with external control devices, and wherein, x1, x2, x3 are respectively three output signal ends that rechargeable cell is external; K1, k2, k3 are respectively the input that three rechargeable cell are accepted external control signal.
When any one rechargeable cell was isolated, all the other two rechargeable cell can continue to keep the operating state that connects.External control devices can carry out the control operation of foreign intervention formula to any rechargeable cell according to rechargeable cell B1, the B2 that x1, x2, x3 transmitted, the status signal of B3, also can not rely on the signal that x1, x2, x3 transmit and carries out enforceable control operation.
Embodiment three
But present embodiment is to adopt the foregoing description one described rechargeable cell B1, B2, B3 to form the battery pack of a charged in parallel/discharged in series.Concrete scheme is as follows:
As shown in Figure 4, connect by two the 3rd control switch K3.1, K3.2 between rechargeable cell B1, B2, the B3.The 3rd control switch K3.1, K3.2 are a kind of selector switch (in the present embodiment adopt be relay), and it has the selected end of common port G, No. one 1, No. two selected ends 2 and control end k3.1 (the 3rd control switch K3.1 among the figure).
As shown in the figure, the common port G of the 3rd control switch K3.1 is connected with the negative pole of rechargeable cell B1; Selected end 1 is connected with the positive pole of adjacent next rechargeable cell B2; No. two selected end 2 is connected with the negative pole of whole battery group.Be connected by another the 3rd control switch K3.2 between rechargeable cell B2 and the rechargeable cell B3, its connected mode is the same.
Also be provided with in the battery pack and have conducting selecting side G
4, two selected end and control end k
4The 4th control switch K4 (in the present embodiment adopt be relay).The conducting selecting side G of the 4th control switch K4
4(positive pole that is rechargeable battery unit B 1 is connected with the positive pole of this battery pack.The selected end of the 4th control switch K4 is connected with charge power supply end Vcc, and another selected end becomes the output DC of the described battery pack of present embodiment.
When the 4th control switch K4 of the described battery pack of present embodiment and the output DC gating of battery pack, the conducting selecting side of the 3rd control switch K3.1, K3.2 (as the G end of K3.1) and a selected end (as 1 end of K3.1) when being connected, rechargeable cell B1, B2, B3 are connected, and this battery pack is a discharge condition.
When the conducting selecting side of the 4th control switch K4 and charge power supply end Vcc gating, the 3rd control switch K3.1, K3.2 (as the G end of K3.1) and No. two selected ends (as 2 ends of K3.1) when being connected, rechargeable cell B1, B2, B3 are by parallel connection, and this battery pack is a charged state.
Be under the charged state in this battery pack, do not take place between rechargeable cell B1, B2, the B3 mutually to charging phenomenon for making, the positive pole of rechargeable cell B2, B3 is connected with charge power supply end Vcc by diode D2, D3, simultaneously, set up a diode D1 between the 4th control switch K4 and the selected end that charge power supply end Vcc is connected, rechargeable cell B1 is connected with charge power supply end Vcc by this diode D1 when charging.The conducting of above-mentioned diode D1, D2, D3 is provided with direction and is the charging current direction.
In the present embodiment, the 4th control switch K4 is used for battery power discharge, charged state are carried out switching controls; The 3rd control switch K3.1, K3.2 are used for that the rechargeable cell of forming this battery pack is carried out the serial or parallel connection state and switch.
The control end k of the control end k4 of the 4th control switch K4 and the 3rd control switch K3.1, K3.2
3.1, k
3.2All the control signal output ends with external control devices (as central processing unit) is connected, thereby externally under the control of equipment, carries out the switching of connection status and operating state.
Embodiment four
Present embodiment is two the foregoing descriptions, two described battery pack to be carried out parallel connection and a kind of assembled battery of constituting.The battery pack that is adopted represents with Bz, as shown in Figure 5.
In this assembled battery, also be provided with discharge bus 1 and charging bus 2.The positive pole of battery pack Bz is connected to discharge bus 1 by diode D1, D2 and by output DC external loading is discharged, and simultaneously, the positive pole of battery pack Bz is also by diode D1.
1, D2.
1Be connected with charging bus 2, and present embodiment charged by charge power supply Vcc.
The conducting direction of diode D1, D2 is the discharging current direction of battery pack, makes electric current can not take place between the battery pack Bz pour in down a chimney phenomenon mutually.
Diode D1.
1, D2.
1Conducting direction be the charging current direction of battery pack, make between the battery pack Bz and when charging, charging current can not take place and fill phenomenon mutually.
Embodiment five
Present embodiment is to be connected into a baby battery group Bm with two by controlled rechargeable cell B1, the B2 of the foregoing description one described connection status, again three baby battery group Bm are connected and form a series connection group by two control switch Km identical with the 3rd control switch described in the foregoing description three, at last two identical series connection groups are carried out parallel connection and constituted a kind of assembled battery, as shown in Figure 6.
The connected mode of the 3rd control switch and rechargeable cell B1, B2, B3 is identical described in the connected mode of described control switch Km and baby battery group Bm and the foregoing description three.
In addition, the positive pole of the series connection group of being made up of baby battery group Bm is equipped with the control switch K identical with the 4th control switch described in the foregoing description three, and its connected mode is also identical with the foregoing description three.
In the present embodiment, also be provided with discharge bus 1 and charging bus 2 in the assembled battery.The positive pole of series connection group is connected with discharge bus 1 by the selected end of control switch K and discharge conducting diode Df, the Df1 that is connected with this selected end, and by this discharge bus be connected with the output DC of assembled battery, the positive pole of series connection group simultaneously, is also by another the selected end of control switch K and charging conducting diode D1, the D1. that is connected with this selected end
1Be connected with charging bus 2.
In this assembled battery, except that the first segment baby battery group Bm of the anodal place of series connection group, the positive pole of other baby battery group Bm is respectively by charging conducting diode D2, D3, D1.
2, D1.
3Be connected with charging bus 2.
The assembled battery that present embodiment provided is connected in series by selecting control switch that medium and small battery pack Bm is organized in the series connection of two parallel connections when discharge; When discharge, by selecting control switch all baby battery group Bm are connected in parallel, make baby battery group Bm can obtain comparatively all permanent charging current, thereby guarantee the charging quality of whole assembled battery.
Embodiment six
Present embodiment is two the foregoing descriptions, three described batteries to be carried out parallel connection and another assembled battery of constituting, as shown in Figure 7.Each batteries in parallel connection group in this assembled battery can both realize discharged in series/charged in parallel to any one rechargeable cell in its group.
The parallel way of battery pack is identical with the foregoing description five in the present embodiment, so do not give unnecessary details.
Embodiment seven
Present embodiment is a kind of assembled battery of setting up constant-voltage control circuit, and the battery pack that adopts in this assembled battery can be the foregoing description two or embodiment three, and its theory diagram as shown in Figure 8.
Among the figure, the output after the battery pack parallel connection is connected with the voltage signal end of constant-voltage control circuit, and by this constant-voltage control circuit output.The too high or too low output voltage that constant voltage circuit occurs battery pack can carry out constant voltage control, makes the output voltage of assembled battery keep stable rated value.Because the rechargeable cell that adopts in the battery pack is the connection status controllable, after certain rechargeable cell is isolated, the battery pack at its place voltage can occur and reduce phenomenon, this will impact the output voltage of whole assembled battery, and utilize this constant-voltage control circuit, can keep output stable.
As shown in Figure 9, control the specific embodiment circuit diagram for the constant voltage that present embodiment adopted.This embodiment circuit adopts pulse-width modulation constant voltage control principle.
This circuit adopts a pulse width modulating chip IC as detecting control module, and the output of battery pack is sent to the signal input part 15 of pulse width modulating chip IC through the Vcc end of this circuit.The pulse signal output end 11,14 of pulse width modulating chip IC is connected with the signal input end of power output unit in this circuit respectively.The base stage of transistor Q1, Q2 is connected with pulse signal output end 11,14 respectively, when pulse width modulating chip IC exports two reverse impulse signals by pulse signal output end 11,14, transistor Q1, Q2 enter conducting state respectively, and produce two reverse electric currents, described two reverse electric currents produce two reverse voltages by mutual inductor B1 between the two ends of the inferior utmost point and centre tap, and synthesize the forward output voltage by the effect of swinging to of diode D1, D2.
The ON time of pulse signal output end 11,14 is subjected to the control of pulse width modulating chip IC, and different ON time can obtain the pulse of different in width, thereby will obtain different effective output voltage values at the output of mutual inductor B1.Parameter by preestablishing each element in this circuit and to the detection of the actual output voltage signal of battery pack can obtain the ON time of pulse signal output end 11,14.
When the battery pack output voltage signal is high, the ON time of pulse signal output end 11,14 is shorter, then, it is short that the ON time of transistor Q1, Q2 should be mutually, the inferior utmost point at mutual inductor B1 obtains the narrower current waveform of pulsewidth, and its output voltage numerical value is then less than the actual output voltage signal numerical value of battery pack; When the voltage of battery pack lower, its voltage signal is sent among the pulse width modulating chip IC, by logic control circuit among the pulse width modulating chip IC, the corresponding lengthening of Continuity signal time meeting of pulse signal output end 11,14, thereby at the inferior current waveform that extremely can obtain the pulsewidth broad of mutual inductor B1, then the magnitude of voltage of output is higher than the actual output voltage signal value of battery pack.
Realized constant control by this constant-voltage control circuit to the battery pack output voltage, for guaranteeing the stable of output voltage, this circuit also carries out another signal input part 1 that dividing potential drop is sampled and fed back to pulse width modulating chip IC to the output voltage of this assembled battery by resistance R 1, R2, thereby carries out two closed loops controls in this assembled battery.
Moreover, another signal input part 10 of pulse width modulating chip IC also is connected with external control devices (as single-chip microcomputer) control signal output ends Kw by divider resistance R5, R6, makes external control devices carry out external control to the output of this assembled battery easily.
In sum, technical scheme of the present invention and the various embodiments described above all are based on the controlled rechargeable cell of connection status, no matter the various battery pack of being made up of this rechargeable cell still are the various assembled batteries that the battery pack of passing through to be formed constitutes, rechargeable cell wherein can be carried out connection status control by telemetry circuit and control switch or the external control devices (as central processing unit) of self configuration, thereby make battery pack or the assembled battery formed not only have the function of isolated fault battery unit, need isolate or change connection corresponding rechargeable battery but also have, to reach different application targets according to special.
It should be noted last that: above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the present invention, and not breaking away from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (24)
1, the controlled rechargeable cell of a kind of connection status is characterized in that: described rechargeable cell is made of chargeable electric core, first control switch and second control switch at least; Described chargeable electric core is with in parallel with second control switch again after first control switch is connected; Described first control switch, second control switch have only a switch connection simultaneously when work; Wherein, first control switch is used for chargeable electric core and external circuit are switched on or switched off, second control switch is used for when first control switch disconnects chargeable electric core and external circuit should chargeable electric core bypass, and described second control switch is switching transistor or relay or low-resistance field effect transistor; The control end of described switching transistor or low-resistance field effect transistor or the control loop of relay connect the control signal of external control devices, be used for external control devices Bypass Control is carried out in the loop at this chargeable electric core place.
2, the controlled rechargeable cell of connection status according to claim 1, it is characterized in that: described rechargeable cell also comprises telemetry circuit; The input end of described telemetry circuit is connected with the output of described chargeable electric core, detects in order to charging, discharge condition to chargeable electric core.
3, the controlled rechargeable cell of connection status according to claim 2, it is characterized in that: described telemetry circuit has the discharge control signal end; Described discharge control signal end is connected with the signal input end of described first control switch, is used for the discharge of this chargeable electric core is controlled.
4, the controlled rechargeable cell of connection status according to claim 2, it is characterized in that: described telemetry circuit has the charging control signal end; Described charging control signal end is connected with the signal input end of described first control switch, is used for the charging of this chargeable electric core is controlled.
5, the controlled rechargeable cell of connection status according to claim 3 is characterized in that: described first control switch is switching transistor or relay or low-resistance field effect transistor; The control loop of described switching transistor or relay or low-resistance field effect transistor is connected with the discharge control signal end of described telemetry circuit.
6, the controlled rechargeable cell of connection status according to claim 4 is characterized in that: described first control switch is switching transistor or relay or low-resistance field effect transistor; The control loop of described switching transistor or relay or low-resistance field effect transistor is connected with the charging control signal end of described telemetry circuit.
7, according to claim 5 or the controlled rechargeable cell of 6 described connection status, it is characterized in that: described first control switch is the gate-controlled switch circuit that is composed in series by two low-resistance field effect transistor that are parallel with unidirectional breakover element at least, or is composed in series the gate-controlled switch circuit by two relays that are parallel with unidirectional breakover element; Described gate-controlled switch circuit has two signal input end at least, and this signal input end is connected with discharge control signal end, the charging control signal end of described telemetry circuit respectively, jointly controls in order to discharge or charging to chargeable electric core.
8, according to claim 1 or the controlled rechargeable cell of 3 or 4 described connection status, it is characterized in that: the control signal of described first control switch also is connected with external control signal, is used for external equipment the discharge or the charging process of this chargeable electric core are controlled.
9, the controlled rechargeable cell of connection status according to claim 1 and 2 is characterized in that: the output of described chargeable electric core also is equipped with the holding wire that connects external control devices, is used for the voltage signal output with described chargeable electric core.
10, the controlled rechargeable cell of connection status according to claim 8 is characterized in that: described external control devices is single-chip microcomputer or outer computer.
11, the controlled rechargeable cell of connection status according to claim 9 is characterized in that: described external control devices is single-chip microcomputer or outer computer.
12, the controlled rechargeable cell of connection status according to claim 1 is characterized in that: described chargeable electric core is lithium-ion electric core or ni-mh electricity core or NI-G electricity core.
13, a kind of battery pack of forming by arbitrary rechargeable cell among the claim 1-12, it is characterized in that: described battery pack is composed in series by an above-described rechargeable cell, the positive pole of described rechargeable cell is connected with the positive pole of charge power supply by unidirectional breakover element, and it is the charging current direction that the conducting of this unidirectional breakover element is provided with direction.
14, battery pack according to claim 13, it is characterized in that: be in series with selector switch between the described rechargeable cell, the common port of this selector switch connects the upper level rechargeable cell, and its first selecting side connects the next stage rechargeable cell; The negative pole of its second selection termination battery pack.
15, battery pack according to claim 13, it is characterized in that: described battery pack is connected with charge power supply or discharge loop respectively by discharging and recharging selector switch, this common port that discharges and recharges selector switch is connected to the cathode output end of this battery pack, and these two outputs that discharge and recharge selector switch connect charge power supply or discharge loop respectively; Discharge and recharge the charge or discharge state of selector switch control battery pack by this.
16, a kind of assembled battery of forming by arbitrary rechargeable cell among the claim 13-15, it is characterized in that: described assembled battery is made up of a Battery pack group at least, when this assembled battery comprises more than one group battery pack, in parallel again after this battery pack parallel with one another or series connection or the series connection.
17, assembled battery according to claim 16 is characterized in that: be provided with the discharge bus in the described assembled battery; The positive pole of described battery pack is connected with described discharge bus, perhaps is connected with described discharge bus by unidirectional breakover element; The set direction that connects of described unidirectional breakover element is the discharging current direction.
18, assembled battery according to claim 16 is characterized in that: be provided with the charging bus in the described assembled battery; The positive pole of described battery pack is connected with described charging bus, perhaps is connected with described charging bus by unidirectional breakover element; The set direction that connects of described unidirectional breakover element is the charging current direction.
19, assembled battery according to claim 16 is characterized in that: described battery pack is connected mutually by selector switch, and perhaps described battery pack is composed in series a string joint group by selector switch, is composed in parallel by the described series connection group more than a group again; The common port of described selector switch is connected with the negative pole of described battery pack, and an end of this selector switch is connected with the positive pole of adjacent cell group, and the other end of this selector switch connects the negative pole of described assembled battery.
20, assembled battery according to claim 19 is characterized in that: the positive pole of described battery pack is connected with the positive pole of charge power supply by unidirectional breakover element; The conducting of described unidirectional breakover element is provided with the charging current direction of direction for this battery pack.
21, assembled battery according to claim 19 is characterized in that: the positive pole of described series connection group is connected with the positive pole of charge power supply by another selector switch or is connected with the discharge output; Can carry out the charge or discharge state to this series connection group by described another selector switch switches.
22, a kind of assembled battery with arbitrary battery pack among the claim 13-15, it is characterized in that: this assembled battery is made up of described battery pack and constant-voltage control circuit at least; The output of described battery pack connects the input of described constant voltage circuit; Described constant-voltage control circuit is output as the output of described assembled battery.
23, assembled battery according to claim 22 is characterized in that: described constant-voltage control circuit has input control module and power output unit at least; Described input control module has two inputs at least, and wherein, first input end is connected with the input of described constant-voltage control circuit, is used to import the output by described battery pack; Second input is connected with the output of described constant-voltage control circuit; Be used for the output of this constant voltage circuit is fed back; The output of described input control module is connected with the signal input end of described power output unit; The output of described power output unit is the output of constant-voltage control circuit.
24, assembled battery according to claim 23 is characterized in that: described input control module also is provided with output voltage and regulates input, is used to import outside regulated voltage signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB031092403A CN100359780C (en) | 2003-04-04 | 2003-04-04 | Chargeable cell unit whose connection state can be controlled and assembled battery |
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| CNB031092403A CN100359780C (en) | 2003-04-04 | 2003-04-04 | Chargeable cell unit whose connection state can be controlled and assembled battery |
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| CN100359780C true CN100359780C (en) | 2008-01-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3241264A4 (en) * | 2014-09-22 | 2018-08-01 | Polyvalor, Limited Partnership | Energy storage device and modular circuit |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN110474113A (en) * | 2019-07-05 | 2019-11-19 | 深圳市普禄科智能检测设备有限公司 | Electronic cell device |
| CN111366880A (en) * | 2020-04-03 | 2020-07-03 | 深圳市超力源科技有限公司 | Circuit for intelligently identifying whether battery is connected or not |
| CN113933717A (en) * | 2020-07-14 | 2022-01-14 | 北京小米移动软件有限公司 | Method and device for acquiring electric quantity of battery, battery and electronic equipment |
| CN114123416A (en) * | 2021-11-30 | 2022-03-01 | 傲普(上海)新能源有限公司 | Charge-discharge control method for series battery monomer in battery module |
| WO2023185894A1 (en) * | 2022-03-31 | 2023-10-05 | 赵依军 | Smart cell, battery module comprising smart cell, and battery pack |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160941A (en) * | 1996-03-29 | 1997-10-01 | 龙顺游 | New-type charge and discharge device |
| US5747966A (en) * | 1994-01-13 | 1998-05-05 | Fujitsu Limited | Battery charging/discharging apparatus with serial battery connection |
| US6043629A (en) * | 1998-11-03 | 2000-03-28 | Hughes Electronics Corporation | Modular control electronics for batteries |
| CN1327288A (en) * | 2000-06-02 | 2001-12-19 | 精工电子有限公司 | Charging/discharging type power source |
| CN1372364A (en) * | 2001-02-20 | 2002-10-02 | 精工电子有限公司 | Controller for electricity recharge/discharge |
-
2003
- 2003-04-04 CN CNB031092403A patent/CN100359780C/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5747966A (en) * | 1994-01-13 | 1998-05-05 | Fujitsu Limited | Battery charging/discharging apparatus with serial battery connection |
| CN1160941A (en) * | 1996-03-29 | 1997-10-01 | 龙顺游 | New-type charge and discharge device |
| US6043629A (en) * | 1998-11-03 | 2000-03-28 | Hughes Electronics Corporation | Modular control electronics for batteries |
| CN1327288A (en) * | 2000-06-02 | 2001-12-19 | 精工电子有限公司 | Charging/discharging type power source |
| CN1372364A (en) * | 2001-02-20 | 2002-10-02 | 精工电子有限公司 | Controller for electricity recharge/discharge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3241264A4 (en) * | 2014-09-22 | 2018-08-01 | Polyvalor, Limited Partnership | Energy storage device and modular circuit |
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| Publication number | Publication date |
|---|---|
| CN1536730A (en) | 2004-10-13 |
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Assignee: BOE (HEBEI) MOBILE DISPLAY TECHNOLOGY Co.,Ltd. Assignor: BOE TECHNOLOGY GROUP Co.,Ltd. Contract fulfillment period: 2009.3.23 to 2023.4.4 Contract record no.: 2009990000287 Denomination of invention: Chargeable cell unit whose connection state can be controlled and assembled battery Granted publication date: 20080102 License type: Exclusive license Record date: 20090409 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.3.23 TO 2023.4.4; CHANGE OF CONTRACT Name of requester: BOE (HEBEI) MOBILE DISPLAY TECHNOLOGY CO., LTD. Effective date: 20090409 |
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