CN105119361B - A kind of battery combiner and the DC power system with the battery combiner - Google Patents
A kind of battery combiner and the DC power system with the battery combiner Download PDFInfo
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- CN105119361B CN105119361B CN201510574309.6A CN201510574309A CN105119361B CN 105119361 B CN105119361 B CN 105119361B CN 201510574309 A CN201510574309 A CN 201510574309A CN 105119361 B CN105119361 B CN 105119361B
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Abstract
The invention discloses a kind of battery combiner and the DC power system with the battery combiner.Wherein, the battery combiner includes: control unit, for being communicated with DC power supply device, according to the demand of DC power supply device, controls the conducting and disconnection of main connection unit and by-pass unit；Main connection unit, for the instruction according to control unit, conducting is in parallel with DC power supply device, or disconnects in parallel with DC power supply device；By-pass unit is parallel to main connection unit both ends, in battery pack switching, main connection unit disconnection, according to the instruction of control unit, starting to discharge to DC power supply device, and DC power supply device or battery pack cannot charge to battery pack.Using technical solution of the present invention by being communicated with DC power supply device, realizes and every group of battery pack is individually managed, realize the effective maintenance and protection to battery pack, extend battery pack service life, effectively prevent voltge surge battery pack in battery pack handoff procedure.
Description
Technical field
The present invention relates to power electronics field, in particular to a kind of battery combiner and with the battery combiner
DC power system.
Background technique
With the increasingly developed of science and technology, battery is as the important guarantee function and direct current in DC power system
Indispensable part in power-supply system.With the development of DC power supply, the existing storage battery of DC power supply is integrated
It is required that more more and more urgent.Existing DC power supply device if necessary to by battery pack it is directly used in parallel, just only have access same capacity,
Same producer, same type, the battery with batch.If user wants using existing battery pack, i.e., using different capabilities, different manufacturers,
Different type, the battery of different batches are directly used in parallel, and carrying out capacity extension then cannot achieve, it is necessary to the same genus more renewed
Property battery pack.
In the prior art, DC power supply device largely includes battery group；Battery group be it is a kind of alternating current it is normal or
It can guarantee in the case of the various accidents of person to the power-supply system of DC equipment reliable power supply, it may be said that be that a kind of direct current does not have a power failure electricity
Source system.Battery group is the heart of direct current uniterruptible power system, is that highest part is worth in a whole set of DC power supply device.Electric power storage
The Capacity Selection in pond is to determine that user load is bigger according to user load size and standby electric duration, it is desirable that standby electricity duration is more long,
The accumulator capacity of selection will be bigger, since the bigger cost of battery group capacity is higher, in existing DC power supply device
In it is mostly be that can substantially reduce the capacity of single group battery in this way using by the way of two groups or the directly parallel connection of plurality of groups of storage batteries group
It is required that achieving the purpose that reduce cost.
But find that at least there are the following problems in the prior art during inventor designs DC power system:
The self-characteristic of existing battery group, only had access in same DC equipment same capacity, same to producer, same type,
With the battery pack of batch, different capabilities, different manufacturers, different type, the battery pack of different batches cannot be directly used in parallel, no
It then can be since the difference of battery parameter between new used batteries, different capabilities battery, different manufacturers battery itself be (such as in battery
Resistance), cause the accelerated ageing and damage of battery.If user wants to increase the standby electric duration of DC power system or expands load
Capacity, just there is bigger requirement to battery group capacity, and current scheme can only be by replacing whole battery groups simultaneously come real
Existing, the scheme that can not only increase by one group or two groups new battery group in existing equipment realizes user demand.It thereby results in
Existing battery cannot use, and also purchase new high capacity cell, bring the waste of resource and the increase of cost.
Summary of the invention
In view of the above problems, it proposes on the present invention overcomes the above problem or at least be partially solved in order to provide one kind
A kind of battery combiner and the DC power system with the battery combiner for stating problem.
According to one aspect of the present invention, the present invention provides a kind of battery combiner, which includes: control
The main connection unit of unit, at least two-way and at least two-way by-pass unit；
Described control unit, for being communicated with DC power supply device, according to the demand of the DC power supply device, control
Make the conducting and disconnection of the main connection unit and the by-pass unit；
The main connection unit, for the instruction according to described control unit, conducting is in parallel with the DC power supply device,
Or it disconnects in parallel with the DC power supply device；
The by-pass unit is parallel to the main connection unit both ends, in battery pack switching, the main connection to be single
Member disconnects, and according to the instruction of described control unit, starting discharges to the DC power supply device, the DC power supply device or
The battery pack cannot charge to the battery pack.
Wherein, the main connection unit, comprising: main D.C. contactor；Described main D.C. contactor one end and the battery
Group is connected, and the other end is connected with the DC power supply device.
Wherein, the main connection unit, further includes: fuse；
Described fuse one end is connected with described main D.C. contactor one end, the other end and the DC power supply device phase
Even.
Wherein, the by-pass unit, comprising: D.C. contactor and counnter attack diode；
The D.C. contactor is connected with the counnter attack diode；The D.C. contactor of the connection and two pole of counnter attack
The parallel connection of pipe both ends and the main connection unit both ends.
Wherein, when battery pack is four groups, when the main connection unit is with tetra- tunnel by-pass unit Dou Wei, the battery pack
It include: battery pack 1, battery pack 2, battery pack 3 and battery pack 4；The main connection unit includes: the first main connection unit, and second
Main connection unit, the main connection unit of third, the 4th main connection unit；Wherein, the described first main connection unit includes: first main straight
Flow contactor K1, first fuse FU1；The second main connection unit includes: the second main D.C. contactor K2, second fuse
FU2；The main connection unit of third includes: the main D.C. contactor K3 of third, third fuse FU3；The 4th main connection is single
Member includes: the 4th main D.C. contactor K4, the 4th fuse FU4；The by-pass unit includes: the first by-pass unit, by the of second
Road unit, third by-pass unit and the 4th by-pass unit；Wherein, first by-pass unit includes: the first D.C. contactor K5
With the first counnter attack diode D1；Second by-pass unit includes: the second D.C. contactor K6 and the second counnter attack diode D2；Institute
Stating third by-pass unit includes: third D.C. contactor K7 and third counnter attack diode D3；4th by-pass unit includes:
Four D.C. contactor K8 and the 4th counnter attack diode D4；
Described first one end main D.C. contactor K1 is connected with the battery pack 1, the other end and the first fuse FU1
One end is connected；The first main D.C. contactor K1 conducting is controlled with disconnection by described control unit；The first fuse FU1
Another termination DC power supply device；
Described one end first D.C. contactor K5 is connect with the first counnter attack diode D1 positive terminal, first direct current
Another termination of contactor K5 first fuse FU1 and the described first connecting pin main D.C. contactor K1；First counnter attack
Diode D1 cathode terminates the battery pack 1 and the described first connecting pin main D.C. contactor K1；
Described second one end main D.C. contactor K2 is connected with the battery pack 2, the other end and the second fuse FU2
One end is connected；The second main D.C. contactor K2 conducting is controlled with disconnection by described control unit；The second fuse FU2
Another termination DC power supply device；
Described one end second D.C. contactor K6 is connect with the second counnter attack diode D2 positive terminal, second direct current
Another termination of contactor K6 second fuse FU2 and the described second connecting pin main D.C. contactor K2；Second counnter attack
Diode D2 cathode terminates the battery pack 2 and the described second connecting pin main D.C. contactor K2；
Described third one end main D.C. contactor K3 is connected with the battery pack 3, the other end and the third fuse FU3
One end is connected；The main D.C. contactor K3 conducting of third is controlled with disconnection by described control unit；The third fuse FU3
Another termination DC power supply device；
Described one end third D.C. contactor K7 is connect with the third counnter attack diode D3 positive terminal, the third direct current
Another termination of contactor K7 third fuse FU3 and the connecting pin the third main D.C. contactor K3；The third counnter attack
Diode D3 cathode terminates the battery pack 3 and the connecting pin the third main D.C. contactor K3；
Described 4th one end main D.C. contactor K4 is connected with the battery pack 4, the other end and the 4th fuse FU4
One end is connected；The 4th main D.C. contactor K4 conducting is controlled with disconnection by described control unit；The 4th fuse FU4
Another termination DC power supply device；
Described 4th one end D.C. contactor K8 is connect with the 4th counnter attack diode D4 positive terminal, the 4th direct current
Another termination of contactor K8 the 4th fuse FU4 and the connecting pin the 4th main D.C. contactor K4；4th counnter attack
Diode D4 cathode terminates the battery pack 4 and the connecting pin the 4th main D.C. contactor K4.
According to another aspect of the invention, the present invention provides a kind of DC power systems, comprising: battery combiner；
The battery combiner includes: control unit, at least main connection unit of two-way and at least two-way by-pass unit；
Described control unit, for being communicated with DC power supply device, according to the demand of the DC power supply device, control
Make the conducting and disconnection of the main connection unit and the by-pass unit；
The main connection unit, for the instruction according to described control unit, conducting is in parallel with the DC power supply device,
Or it disconnects in parallel with the DC power supply device；
The by-pass unit is parallel to the main connection unit both ends, in battery pack switching, the main connection to be single
Member disconnects, and according to the instruction of described control unit, starting discharges to the DC power supply device, the DC power supply device or
The battery pack cannot charge to the battery pack.
Wherein, the main connection unit, comprising: main D.C. contactor；Described main D.C. contactor one end and the battery
Group is connected, and the other end is connected with the DC power supply device.
Wherein, the main connection unit, further includes: fuse；
Described fuse one end is connected with described main D.C. contactor one end, the other end and the DC power supply device phase
Even.
Wherein, the by-pass unit, comprising: D.C. contactor and counnter attack diode；
The D.C. contactor is connected with the counnter attack diode；The D.C. contactor of the connection and two pole of counnter attack
The parallel connection of pipe both ends and the main connection unit both ends.
Wherein, when battery pack is four groups, when the main connection unit is with tetra- tunnel by-pass unit Dou Wei, the battery pack
It include: battery pack 1, battery pack 2, battery pack 3 and battery pack 4；The main connection unit includes: the first main connection unit, and second
Main connection unit, the main connection unit of third, the 4th main connection unit；Wherein, the described first main connection unit includes: first main straight
Flow contactor K1, first fuse FU1；The second main connection unit includes: the second main D.C. contactor K2, second fuse
FU2；The main connection unit of third includes: the main D.C. contactor K3 of third, third fuse FU3；The 4th main connection is single
Member includes: the 4th main D.C. contactor K4, the 4th fuse FU4；The by-pass unit includes: the first by-pass unit, by the of second
Road unit, third by-pass unit and the 4th by-pass unit；Wherein, first by-pass unit includes: the first D.C. contactor K5
With the first counnter attack diode D1；Second by-pass unit includes: the second D.C. contactor K6 and the second counnter attack diode D2；Institute
Stating third by-pass unit includes: third D.C. contactor K7 and third counnter attack diode D3；4th by-pass unit includes:
Four D.C. contactor K8 and the 4th counnter attack diode D4；
Described first one end main D.C. contactor K1 is connected with the battery pack 1, the other end and the first fuse FU1
One end is connected；The first main D.C. contactor K1 conducting is controlled with disconnection by described control unit；The first fuse FU1
Another termination DC power supply device；
Described one end first D.C. contactor K5 is connect with the first counnter attack diode D1 positive terminal, first direct current
Another termination of contactor K5 first fuse FU1 and the described first connecting pin main D.C. contactor K1；First counnter attack
Diode D1 cathode terminates the battery pack 1 and the described first connecting pin main D.C. contactor K1；
Described second one end main D.C. contactor K2 is connected with the battery pack 2, the other end and the second fuse FU2
One end is connected；The second main D.C. contactor K2 conducting is controlled with disconnection by described control unit；The second fuse FU2
Another termination DC power supply device；
Described one end second D.C. contactor K6 is connect with the second counnter attack diode D2 positive terminal, second direct current
Another termination of contactor K6 second fuse FU2 and the described second connecting pin main D.C. contactor K2；Second counnter attack
Diode D2 cathode terminates the battery pack 2 and the described second connecting pin main D.C. contactor K2；
Described third one end main D.C. contactor K3 is connected with the battery pack 3, the other end and the third fuse FU3
One end is connected；The main D.C. contactor K3 conducting of third is controlled with disconnection by described control unit；The third fuse FU3
Another termination DC power supply device；
Described one end third D.C. contactor K7 is connect with the third counnter attack diode D3 positive terminal, the third direct current
Another termination of contactor K7 third fuse FU3 and the connecting pin the third main D.C. contactor K3；The third counnter attack
Diode D3 cathode terminates the battery pack 3 and the connecting pin the third main D.C. contactor K3；
Described 4th one end main D.C. contactor K4 is connected with the battery pack 4, the other end and the 4th fuse FU4
One end is connected；The 4th main D.C. contactor K4 conducting is controlled with disconnection by described control unit；The 4th fuse FU4
Another termination DC power supply device；
Described 4th one end D.C. contactor K8 is connect with the 4th counnter attack diode D4 positive terminal, the 4th direct current
Another termination of contactor K8 the 4th fuse FU4 and the connecting pin the 4th main D.C. contactor K4；4th counnter attack
Diode D4 cathode terminates the battery pack 4 and the connecting pin the 4th main D.C. contactor K4.
It needs to increase the beneficial effects of the present invention are: efficiently solving user in equipment dilatation using technical solution of the present invention
Add battery capacity, and the problem of existing battery pack buys new large-capacity battery pack again must not be changed without, makes full use of
Existing resource battery pack resource saves the cost of replacement battery pack.The not simple battery pack of the present invention is in parallel, leads to
Control of the control unit to main connection unit and by-pass unit is crossed, and is communicated with DC power supply device, is realized to every group of electricity
The individual battery management of pond group realizes effective maintenance and protection to battery pack, extends battery pack service life, effectively anti-
Only voltge surge battery pack in battery pack handoff procedure.
Detailed description of the invention
Fig. 1 is a kind of battery combiner structure schematic diagram provided by the invention；
Fig. 2 is that a kind of battery pack of working as provided by the invention is four groups, and the main connection unit and the by-pass unit are all
When four tunnels, the circuit diagram of battery combiner；
Fig. 3 is a kind of DC power system structural schematic diagram provided by the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The present invention provides a kind of battery combiner and the DC power system with the battery combiner.
Fig. 1 is a kind of battery combiner structure schematic diagram provided by the invention；The battery combiner includes: control unit
101, at least main connection unit 102 of two-way and at least two-way by-pass unit 103；
Described control unit, for being communicated with DC power supply device, according to the demand of the DC power supply device, control
Make the conducting and disconnection of the main connection unit and the by-pass unit；
The main connection unit, for the instruction according to described control unit, conducting is in parallel with the DC power supply device,
Or it disconnects in parallel with the DC power supply device；
The by-pass unit is parallel to the main connection unit both ends, in battery pack switching, the main connection to be single
Member disconnects, and according to the instruction of described control unit, starting discharges to the DC power supply device, the DC power supply device or
The battery pack cannot charge to the battery pack.
Wherein, the main connection unit, comprising: main D.C. contactor；Described main D.C. contactor one end and the battery
Group is connected, and the other end is connected with the DC power supply device.
Wherein, the main connection unit, further includes: fuse；
Described fuse one end is connected with described main D.C. contactor one end, the other end and the DC power supply device phase
Even.
Wherein, the by-pass unit, comprising: D.C. contactor and counnter attack diode；
The D.C. contactor is connected with the counnter attack diode；The D.C. contactor of the connection and two pole of counnter attack
The parallel connection of pipe both ends and the main connection unit both ends.
As shown in Fig. 2, to be provided in an embodiment of the present invention a kind of when battery pack is four groups, the main connection unit with it is described
When by-pass unit tetra- tunnel Dou Wei, the circuit diagram of battery combiner；Wherein, the battery pack includes: battery pack 1, battery pack 2, electricity
Pond group 3 and battery pack 4；The main connection unit includes: the first main connection unit, the second main connection unit, the main connection list of third
Member, the 4th main connection unit；Wherein, the described first main connection unit includes: the first main D.C. contactor K1, first fuse
FU1；The second main connection unit includes: the second main D.C. contactor K2, second fuse FU2；The main connection of third is single
Member includes: the main D.C. contactor K3 of third, third fuse FU3；The 4th main connection unit includes: the 4th main direct current contact
Device K4, the 4th fuse FU4；The by-pass unit includes: the first by-pass unit, the second by-pass unit, third by-pass unit and
4th by-pass unit；Wherein, first by-pass unit includes: the first D.C. contactor K5 and the first counnter attack diode D1；Institute
Stating the second by-pass unit includes: the second D.C. contactor K6 and the second counnter attack diode D2；The third by-pass unit includes:
Three D.C. contactor K7 and third counnter attack diode D3；4th by-pass unit includes: the 4th D.C. contactor K8 and the 4th
Counnter attack diode D4；
Described first one end main D.C. contactor K1 is connected with the battery pack 1, the other end and the first fuse FU1
One end is connected；The first main D.C. contactor K1 conducting is controlled with disconnection by described control unit；The first fuse FU1
Another termination DC power supply device；
Described one end first D.C. contactor K5 is connect with the first counnter attack diode D1 positive terminal, first direct current
Another termination of contactor K5 first fuse FU1 and the described first connecting pin main D.C. contactor K1；First counnter attack
Diode D1 cathode terminates the battery pack 1 and the described first connecting pin main D.C. contactor K1；
Described second one end main D.C. contactor K2 is connected with the battery pack 2, the other end and the second fuse FU2
One end is connected；The second main D.C. contactor K2 conducting is controlled with disconnection by described control unit；The second fuse FU2
Another termination DC power supply device；
Described one end second D.C. contactor K6 is connect with the second counnter attack diode D2 positive terminal, second direct current
Another termination of contactor K6 second fuse FU2 and the described second connecting pin main D.C. contactor K2；Second counnter attack
Diode D2 cathode terminates the battery pack 2 and the described second connecting pin main D.C. contactor K2；
Described third one end main D.C. contactor K3 is connected with the battery pack 3, the other end and the third fuse FU3
One end is connected；The main D.C. contactor K3 conducting of third is controlled with disconnection by described control unit；The third fuse FU3
Another termination DC power supply device；
Described one end third D.C. contactor K7 is connect with the third counnter attack diode D3 positive terminal, the third direct current
Another termination of contactor K7 third fuse FU3 and the connecting pin the third main D.C. contactor K3；The third counnter attack
Diode D3 cathode terminates the battery pack 3 and the connecting pin the third main D.C. contactor K3；
Described 4th one end main D.C. contactor K4 is connected with the battery pack 4, the other end and the 4th fuse FU4
One end is connected；The 4th main D.C. contactor K4 conducting is controlled with disconnection by described control unit；The 4th fuse FU4
Another termination DC power supply device；
Described 4th one end D.C. contactor K8 is connect with the 4th counnter attack diode D4 positive terminal, the 4th direct current
Another termination of contactor K8 the 4th fuse FU4 and the connecting pin the 4th main D.C. contactor K4；4th counnter attack
Diode D4 cathode terminates the battery pack 4 and the connecting pin the 4th main D.C. contactor K4.
Based on above embodiments, the realization principle of technical solution of the present invention is described in detail below；
It, can be using the electricity of technical solution of the present invention offer when DC power supply device needs dilatation to increase battery capacity
Pond combiner.
Such as when the battery combiner accesses 4 groups of different capabilities, different manufacturers, different type, different batches simultaneously
When battery pack, carry out controlling it being connected to main connection unit and the by-pass unit by internal control unit by battery combiner
Or disconnect, to realize DC power supply device demand；The DC power supply device demand passes through described control unit and direct current
Power-supply device control unit carries out communication realization, to realize the battery management function to battery pack.
Schematic diagram is as shown in Figure 2 inside the battery combiner.Every group of battery pack by main D.C. contactor (K1-K4) and
Fuse (FU1-FU4) connects together, then in parallel with DC power supply device.Control unit can individually control every group of battery
The main D.C. contactor closure of group, realizes DC power supply device to the battery management function or battery power discharge function of battery pack
Energy.In two groups of battery pack handoff procedures, in order to avoid as there are the voltage differences impact caused by battery pack of two groups of battery packs,
What every group of battery pack also configured by-pass unit；The by-pass unit includes: D.C. contactor (K5-K8) and counnter attack diode
(D1-D4)；The D.C. contactor K5 connects with the counnter attack diode D1；The D.C. contactor K6 and two pole of counnter attack
Pipe D2 series connection；The D.C. contactor K7 connects with the counnter attack diode D3；The D.C. contactor K8 and the counnter attack two
Pole pipe D4 series connection.Described control unit starts battery pack by-pass unit, disconnects main connection unit when battery pack switches；Work as side
Road unit D.C. contactor closure, when the main D.C. contactor of main connection unit disconnects, due to the unilateal conduction of counnter attack diode
Characteristic, it is ensured that online battery pack can only discharge to DC power supply device, and DC power supply device or other battery packs cannot
It charges to online battery pack, it is therefore prevented that since voltage difference causes to impact to battery.
As shown in figure 3, for the present invention provides a kind of DC power system, which includes: battery combiner；The battery
Combiner includes: control unit, at least main connection unit of two-way and at least two-way by-pass unit；
Described control unit, for being communicated with DC power supply device, according to the demand of the DC power supply device, control
Make the conducting and disconnection of the main connection unit and the by-pass unit；
The main connection unit, for the instruction according to described control unit, conducting is in parallel with the DC power supply device,
Or it disconnects in parallel with the DC power supply device；
The by-pass unit is parallel to the main connection unit both ends, in battery pack switching, the main connection to be single
Member disconnects, and according to the instruction of described control unit, starting discharges to the DC power supply device, the DC power supply device or
The battery pack cannot charge to the battery pack.
Wherein, the main connection unit, comprising: main D.C. contactor；Described main D.C. contactor one end and the battery
Group is connected, and the other end is connected with the DC power supply device.
Wherein, the main connection unit, further includes: fuse；
Described fuse one end is connected with described main D.C. contactor one end, the other end and the DC power supply device phase
Even.
Wherein, the by-pass unit, comprising: D.C. contactor and counnter attack diode；
The D.C. contactor is connected with the counnter attack diode；The D.C. contactor of the connection and two pole of counnter attack
The parallel connection of pipe both ends and the main connection unit both ends.
Wherein, when battery pack is four groups, when the main connection unit is with tetra- tunnel by-pass unit Dou Wei, the battery pack
It include: battery pack 1, battery pack 2, battery pack 3 and battery pack 4；The main connection unit includes: the first main connection unit, and second
Main connection unit, the main connection unit of third, the 4th main connection unit；Wherein, the described first main connection unit includes: first main straight
Flow contactor K1, first fuse FU1；The second main connection unit includes: the second main D.C. contactor K2, second fuse
FU2；The main connection unit of third includes: the main D.C. contactor K3 of third, third fuse FU3；The 4th main connection is single
Member includes: the 4th main D.C. contactor K4, the 4th fuse FU4；The by-pass unit includes: the first by-pass unit, by the of second
Road unit, third by-pass unit and the 4th by-pass unit；Wherein, first by-pass unit includes: the first D.C. contactor K5
With the first counnter attack diode D1；Second by-pass unit includes: the second D.C. contactor K6 and the second counnter attack diode D2；Institute
Stating third by-pass unit includes: third D.C. contactor K7 and third counnter attack diode D3；4th by-pass unit includes:
Four D.C. contactor K8 and the 4th counnter attack diode D4；
Described first one end main D.C. contactor K1 is connected with the battery pack 1, the other end and the first fuse FU1
One end is connected；The first main D.C. contactor K1 conducting is controlled with disconnection by described control unit；The first fuse FU1
Another termination DC power supply device；
Described one end first D.C. contactor K5 is connect with the first counnter attack diode D1 positive terminal, first direct current
Another termination of contactor K5 first fuse FU1 and the described first connecting pin main D.C. contactor K1；First counnter attack
Diode D1 cathode terminates the battery pack 1 and the described first connecting pin main D.C. contactor K1；
Described second one end main D.C. contactor K2 is connected with the battery pack 2, the other end and the second fuse FU2
One end is connected；The second main D.C. contactor K2 conducting is controlled with disconnection by described control unit；The second fuse FU2
Another termination DC power supply device；
Described one end second D.C. contactor K6 is connect with the second counnter attack diode D2 positive terminal, second direct current
Another termination of contactor K6 second fuse FU2 and the described second connecting pin main D.C. contactor K2；Second counnter attack
Diode D2 cathode terminates the battery pack 2 and the described second connecting pin main D.C. contactor K2；
Described third one end main D.C. contactor K3 is connected with the battery pack 3, the other end and the third fuse FU3
One end is connected；The main D.C. contactor K3 conducting of third is controlled with disconnection by described control unit；The third fuse FU3
Another termination DC power supply device；
Described one end third D.C. contactor K7 is connect with the third counnter attack diode D3 positive terminal, the third direct current
Another termination of contactor K7 third fuse FU3 and the connecting pin the third main D.C. contactor K3；The third counnter attack
Diode D3 cathode terminates the battery pack 3 and the connecting pin the third main D.C. contactor K3；
Described 4th one end main D.C. contactor K4 is connected with the battery pack 4, the other end and the 4th fuse FU4
One end is connected；The 4th main D.C. contactor K4 conducting is controlled with disconnection by described control unit；The 4th fuse FU4
Another termination DC power supply device；
Described 4th one end D.C. contactor K8 is connect with the 4th counnter attack diode D4 positive terminal, the 4th direct current
Another termination of contactor K8 the 4th fuse FU4 and the connecting pin the 4th main D.C. contactor K4；4th counnter attack
Diode D4 cathode terminates the battery pack 4 and the connecting pin the 4th main D.C. contactor K4.
It needs to increase the beneficial effects of the present invention are: efficiently solving user in equipment dilatation using technical solution of the present invention
Add battery capacity, and the problem of existing battery pack buys new large-capacity battery pack again must not be changed without, makes full use of
Existing resource battery pack resource saves the cost of replacement battery pack.The not simple battery pack of the present invention is in parallel, leads to
Control of the control unit to main connection unit and by-pass unit is crossed, and is communicated with DC power supply device, is realized to every group of electricity
The individual battery management of pond group realizes effective maintenance and protection to battery pack, extends battery pack service life, effectively anti-
Only voltge surge battery pack in battery pack handoff procedure.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (8)
1. a kind of battery combiner, which is characterized in that when DC power supply device needs dilatation to increase battery capacity, the battery
Combiner includes: control unit, at least main connection unit of two-way and at least two-way by-pass unit；
Described control unit, according to the demand of the DC power supply device, controls institute for being communicated with DC power supply device
State the conducting and disconnection of main connection unit and the by-pass unit；
The main connection unit, for the instruction according to described control unit, conducting is in parallel with the DC power supply device, or
It disconnects in parallel with the DC power supply device；
The by-pass unit is parallel to the main connection unit both ends, in battery pack switching, the main connection unit to be disconnected
Open, according to the instruction of described control unit, starting discharges to the DC power supply device, the DC power supply device or other
Battery pack cannot charge to the battery pack；
The by-pass unit, comprising: D.C. contactor and counnter attack diode；
The D.C. contactor is connected with the counnter attack diode；The D.C. contactor of connection and the counnter attack diode
Both ends are parallel to the main connection unit both ends.
2. battery combiner as described in claim 1, which is characterized in that the main connection unit, comprising: main direct current contact
Device；Described main D.C. contactor one end is connected with the battery pack, and the other end is connected with the DC power supply device.
3. battery combiner as claimed in claim 2, which is characterized in that the main connection unit, further includes: fuse；
Described fuse one end is connected with described main D.C. contactor one end, and the other end is connected with the DC power supply device.
4. battery combiner as claimed in claim 3, which is characterized in that when battery pack be four groups, the main connection unit with
When tetra- tunnel by-pass unit Dou Wei, the battery pack includes: battery pack 1, battery pack 2, battery pack 3 and battery pack 4；The master
Connection unit includes: the first main connection unit, the second main connection unit, the main connection unit of third, the 4th main connection unit；Its
In, the first main connection unit includes: the first main D.C. contactor K1, first fuse FU1；The second main connection unit
It include: the second main D.C. contactor K2, second fuse FU2；The main connection unit of third includes: the main D.C. contactor of third
K3, third fuse FU3；The 4th main connection unit includes: the 4th main D.C. contactor K4, the 4th fuse FU4；It is described
By-pass unit includes: the first by-pass unit, the second by-pass unit, third by-pass unit and the 4th by-pass unit；Wherein, described
One by-pass unit includes: the first D.C. contactor K5 and the first counnter attack diode D1；Second by-pass unit includes: second straight
Flow contactor K6 and the second counnter attack diode D2；The third by-pass unit includes: third D.C. contactor K7 and third counnter attack
Diode D3；4th by-pass unit includes: the 4th D.C. contactor K8 and the 4th counnter attack diode D4；
Described first one end main D.C. contactor K1 is connected with the battery pack 1, the other end and the one end the first fuse FU1
It is connected；The first main D.C. contactor K1 conducting is controlled with disconnection by described control unit；The first fuse FU1 is another
Terminate the DC power supply device；
Described one end first D.C. contactor K5 is connect with the first counnter attack diode D1 positive terminal, the first direct current contact
Another termination of device K5 first fuse FU1 and the described first connecting pin main D.C. contactor K1；First counnter attack, two pole
Pipe D1 cathode terminates the battery pack 1 and the described first connecting pin main D.C. contactor K1；
Described second one end main D.C. contactor K2 is connected with the battery pack 2, the other end and the one end the second fuse FU2
It is connected；The second main D.C. contactor K2 conducting is controlled with disconnection by described control unit；The second fuse FU2 is another
Terminate the DC power supply device；
Described one end second D.C. contactor K6 is connect with the second counnter attack diode D2 positive terminal, the second direct current contact
Another termination of device K6 second fuse FU2 and the described second connecting pin main D.C. contactor K2；Second counnter attack, two pole
Pipe D2 cathode terminates the battery pack 2 and the described second connecting pin main D.C. contactor K2；
Described third one end main D.C. contactor K3 is connected with the battery pack 3, the other end and described one end third fuse FU3
It is connected；The main D.C. contactor K3 conducting of third is controlled with disconnection by described control unit；The third fuse FU3 is another
Terminate the DC power supply device；
Described one end third D.C. contactor K7 is connect with the third counnter attack diode D3 positive terminal, the third direct current contact
Another termination of device K7 third fuse FU3 and the connecting pin the third main D.C. contactor K3；Two pole of third counnter attack
Pipe D3 cathode terminates the battery pack 3 and the connecting pin the third main D.C. contactor K3；
Described 4th one end main D.C. contactor K4 is connected with the battery pack 4, the other end and the one end the 4th fuse FU4
It is connected；The 4th main D.C. contactor K4 conducting is controlled with disconnection by described control unit；The 4th fuse FU4 is another
Terminate the DC power supply device；
Described 4th one end D.C. contactor K8 is connect with the 4th counnter attack diode D4 positive terminal, the 4th direct current contact
Another termination of device K8 the 4th fuse FU4 and the connecting pin the 4th main D.C. contactor K4；4th counnter attack, two pole
Pipe D4 cathode terminates the battery pack 4 and the connecting pin the 4th main D.C. contactor K4.
5. a kind of DC power system, which is characterized in that the DC power system includes: battery combiner；When DC power supply is set
Standby the battery combiner includes: control unit when dilatation being needed to increase battery capacity, at least the main connection unit of two-way and at least
Two-way by-pass unit；
Described control unit, according to the demand of the DC power supply device, controls institute for being communicated with DC power supply device
State the conducting and disconnection of main connection unit and the by-pass unit；
The main connection unit, for the instruction according to described control unit, conducting is in parallel with the DC power supply device, or
It disconnects in parallel with the DC power supply device；
The by-pass unit is parallel to the main connection unit both ends, in battery pack switching, the main connection unit to be disconnected
Open, according to the instruction of described control unit, starting discharges to the DC power supply device, the DC power supply device or other
Battery pack cannot charge to the battery pack；
The by-pass unit, comprising: D.C. contactor and counnter attack diode；
The D.C. contactor is connected with the counnter attack diode；The D.C. contactor of connection and the counnter attack diode
Both ends are parallel to the main connection unit both ends.
6. DC power system as claimed in claim 5, which is characterized in that the main connection unit, comprising: main direct current contact
Device；Described main D.C. contactor one end is connected with the battery pack, and the other end is connected with the DC power supply device.
7. DC power system as claimed in claim 6, which is characterized in that the main connection unit, further includes: fuse；
Described fuse one end is connected with described main D.C. contactor one end, and the other end is connected with the DC power supply device.
8. DC power system as claimed in claim 7, which is characterized in that when battery pack be four groups, the main connection unit
When with tetra- tunnel by-pass unit Dou Wei, the battery pack includes: battery pack 1, battery pack 2, battery pack 3 and battery pack 4；It is described
Main connection unit includes: the first main connection unit, the second main connection unit, the main connection unit of third, the 4th main connection unit；Its
In, the first main connection unit includes: the first main D.C. contactor K1, first fuse FU1；The second main connection unit
It include: the second main D.C. contactor K2, second fuse FU2；The main connection unit of third includes: the main D.C. contactor of third
K3, third fuse FU3；The 4th main connection unit includes: the 4th main D.C. contactor K4, the 4th fuse FU4；It is described
By-pass unit includes: the first by-pass unit, the second by-pass unit, third by-pass unit and the 4th by-pass unit；Wherein, described
One by-pass unit includes: the first D.C. contactor K5 and the first counnter attack diode D1；Second by-pass unit includes: second straight
Flow contactor K6 and the second counnter attack diode D2；The third by-pass unit includes: third D.C. contactor K7 and third counnter attack
Diode D3；4th by-pass unit includes: the 4th D.C. contactor K8 and the 4th counnter attack diode D4；
Described first one end main D.C. contactor K1 is connected with the battery pack 1, the other end and the one end the first fuse FU1
It is connected；The first main D.C. contactor K1 conducting is controlled with disconnection by described control unit；The first fuse FU1 is another
Terminate the DC power supply device；
Described one end first D.C. contactor K5 is connect with the first counnter attack diode D1 positive terminal, the first direct current contact
Another termination of device K5 first fuse FU1 and the described first connecting pin main D.C. contactor K1；First counnter attack, two pole
Pipe D1 cathode terminates the battery pack 1 and the described first connecting pin main D.C. contactor K1；
Described second one end main D.C. contactor K2 is connected with the battery pack 2, the other end and the one end the second fuse FU2
It is connected；The second main D.C. contactor K2 conducting is controlled with disconnection by described control unit；The second fuse FU2 is another
Terminate the DC power supply device；
Described one end second D.C. contactor K6 is connect with the second counnter attack diode D2 positive terminal, the second direct current contact
Another termination of device K6 second fuse FU2 and the described second connecting pin main D.C. contactor K2；Second counnter attack, two pole
Pipe D2 cathode terminates the battery pack 2 and the described second connecting pin main D.C. contactor K2；
Described third one end main D.C. contactor K3 is connected with the battery pack 3, the other end and described one end third fuse FU3
It is connected；The main D.C. contactor K3 conducting of third is controlled with disconnection by described control unit；The third fuse FU3 is another
Terminate the DC power supply device；
Described one end third D.C. contactor K7 is connect with the third counnter attack diode D3 positive terminal, the third direct current contact
Another termination of device K7 third fuse FU3 and the connecting pin the third main D.C. contactor K3；Two pole of third counnter attack
Pipe D3 cathode terminates the battery pack 3 and the connecting pin the third main D.C. contactor K3；
Described 4th one end main D.C. contactor K4 is connected with the battery pack 4, the other end and the one end the 4th fuse FU4
It is connected；The 4th main D.C. contactor K4 conducting is controlled with disconnection by described control unit；The 4th fuse FU4 is another
Terminate the DC power supply device；
Described 4th one end D.C. contactor K8 is connect with the 4th counnter attack diode D4 positive terminal, the 4th direct current contact
Another termination of device K8 the 4th fuse FU4 and the connecting pin the 4th main D.C. contactor K4；4th counnter attack, two pole
Pipe D4 cathode terminates the battery pack 4 and the connecting pin the 4th main D.C. contactor K4.
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| CN106849283B (en) * | 2017-04-13 | 2019-04-12 | 北京中电博达科技有限公司 | A kind of battery modules flexible connection protective device |
| CN111509315A (en) * | 2020-04-28 | 2020-08-07 | 西安新艾电气技术有限公司 | Digital battery module management unit and management system thereof |
| CN114069767B (en) * | 2021-10-13 | 2024-07-26 | 科华数据股份有限公司 | Charger switching protection device for battery module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611145A (en) * | 2011-01-21 | 2012-07-25 | 北京动力源科技股份有限公司 | Method and device for managing battery of direct current power supply |
| CN103178571A (en) * | 2011-12-26 | 2013-06-26 | 易速达休闲育乐股份有限公司 | Battery parallel and protective device of electric vehicle |
| CN203071610U (en) * | 2012-12-29 | 2013-07-17 | 中国移动通信集团安徽有限公司 | Control apparatus for base station stand-by power supply |
| CN104767248A (en) * | 2015-04-16 | 2015-07-08 | 刘娜 | Intelligent energy source efficient management system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101218739B (en) * | 2005-07-06 | 2010-06-09 | 力博特公司 | System and method for maximized battery run-time in a parallel UPS system |
| CN204481504U (en) * | 2015-01-27 | 2015-07-15 | 山东圣阳电源股份有限公司 | The system that a kind of battery pack parallel connection uses |
-
2015
- 2015-09-10 CN CN201510574309.6A patent/CN105119361B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611145A (en) * | 2011-01-21 | 2012-07-25 | 北京动力源科技股份有限公司 | Method and device for managing battery of direct current power supply |
| CN103178571A (en) * | 2011-12-26 | 2013-06-26 | 易速达休闲育乐股份有限公司 | Battery parallel and protective device of electric vehicle |
| CN203071610U (en) * | 2012-12-29 | 2013-07-17 | 中国移动通信集团安徽有限公司 | Control apparatus for base station stand-by power supply |
| CN104767248A (en) * | 2015-04-16 | 2015-07-08 | 刘娜 | Intelligent energy source efficient management system |
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