CN206790167U - A kind of battery - Google Patents
A kind of battery Download PDFInfo
- Publication number
- CN206790167U CN206790167U CN201720602747.3U CN201720602747U CN206790167U CN 206790167 U CN206790167 U CN 206790167U CN 201720602747 U CN201720602747 U CN 201720602747U CN 206790167 U CN206790167 U CN 206790167U
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- battery
- switch
- battery unit
- unit
- drive signal
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Abstract
The utility model provides a kind of battery, including multiple the first battery units being sequentially connected in series, the first switch circuit being connected between first battery unit the two poles of the earth, the second battery unit and control unit being connected between adjacent two first switches circuit, first switch circuit includes two first switches being serially connected, second battery unit is just, negative pole is connected between two first switches with first switch circuit, control unit is used for the electricity for detecting each first battery unit, and the break-make of corresponding first switch is controlled according to testing result, so that the electric quantity balancing of each first battery unit.The utility model has the advantages of small volume, cost are low, capacity is big, safe, multiplying power is high, long lifespan；And in use, each first battery unit electricity can automatic equalization, equalizing circuit is simple, strong interference immunity.
Description
Technical field
It the utility model is related to a kind of battery.
Background technology
Current battery mainly has lithium ion battery (referred to as lithium battery), lead-acid battery, Ni-MH battery, nickel-cadmium cell
Deng but Ni-MH battery, nickel-cadmium cell price are significantly greater than lead-acid battery, and lead-acid battery has that safe and reliable, cost is cheap, electric
The advantages of tankage is big, therefore electrokinetic cell is mainly used as using lead-acid battery in electric automobile.But lead-acid battery still has phase
The defects of working as, for example lead-acid battery volume is big, discharge-rate is low, cycle life is relatively low, makes it separately as electric car
Gratifying effect can not be obtained during electrokinetic cell.On the other hand, lithium battery then has small volume, discharge-rate height, life-span
The advantages that long, therefore lithium battery can use as power battery of electric vehicle, but lithium battery in production must combo, after combo
Lithium battery in use, occur the situation that some battery charging and dischargings fall behind unavoidably, and the lithium battery of combo occur therefore
During barrier, it is necessary to which whole group is changed, and lithium battery cost is high, and security is relatively low, therefore different types of battery is mixed as power
Battery is optimal solution.
After different types of battery is mixed, it is necessary to consider that the equilibrium of battery, existing balancing technique mainly include damage
Balanced and non-dissipative equalizing, but damage equilibrium and the shortcomings that resistance heating is big, electric current is limited be present, certain unsafe factor be present,
And it is applied to charge balancing, the shortcomings that circuit is complicated, cost is higher, anti-interference is insufficient then be present in non-dissipative equalizing.
Utility model content
The purpose of this utility model is in view of the shortcomings of the prior art, to propose a kind of battery, by similar or variety classes
Battery combination form that cost is low, capacity is big, safe, multiplying power is high, the new battery of long lifespan, and each first battery unit energy
Enough automatic equalization, circuit is simple, and anti-interference is stronger.
The utility model is achieved through the following technical solutions：
A kind of battery, including multiple the first battery units being sequentially connected in series, be connected to each first battery unit the two poles of the earth it
Between first switch circuit, the second battery unit for being connected between adjacent two first switches circuit and control unit, first opens
Powered-down road includes two first switches being serially connected, and the positive and negative electrode of the second battery unit is between two first switches with first
On-off circuit connects, and control unit is used for the electricity for detecting each first battery unit, and controls corresponding first according to testing result
Switch on-off, so that the electric quantity balancing of each first battery unit.
Further, in addition to be connected between each first battery supply the two poles of the earth second switch circuit, be connected to phase
The 3rd battery unit between adjacent two second switch circuits, second switch circuit include two second switches being serially connected, the
The positive and negative electrode of three battery units is connected between two second switches with second switch circuit, and control unit is used to detect each first
The electricity of battery unit, and according to the break-make of the corresponding second switch of testing result control, so that the electricity of each first battery unit
It is balanced.
Further, first battery unit includes multiple in parallel and/or series connection the first battery, second battery
Unit includes multiple in parallel and/or series connection the second battery, and the 3rd battery unit includes multiple in parallel and/or series connection the
Three batteries, the open-circuit voltage of first, second, and third battery unit are roughly the same.
Further, first battery is lithium battery either lead-acid battery or nickel-cadmium cell or Ni-MH battery, institute
The second battery is stated as lithium battery either lead-acid battery or nickel-cadmium cell or Ni-MH battery, the 3rd battery be lithium battery or
Person's lead-acid battery either nickel-cadmium cell or Ni-MH battery.
Further, two first switch be respectively that input is connected with the first battery unit positive pole upper first
The lower first switch that switch and output end are connected with the first battery unit negative pole, described control unit are opened for upper and lower first
Close and provide sequential complementary the first drive signal and the second drive signal respectively.
Further, two second switch be respectively that input is connected with the first battery unit positive pole upper second
The lower second switch that switch and output end are connected with the first battery unit negative pole, described control unit are opened for upper and lower second
Close and the 3rd complementary drive signal of sequential and fourth drive signal, the first drive signal and the 3rd drive signal sequential are provided respectively
Complementation, the second drive signal are complementary with fourth drive signal sequential.
Further, first, second switch is metal-oxide-semiconductor either triode or IGBT or relay.
The utility model has the advantages that：
1st, different types of battery may be selected in first, second, third battery of the present utility model, by different types of battery
New battery is combined into, the defects of all kinds of batteries advantage of itself can be utilized, and avoid all kinds of batteries, makes new battery that there is volume
Small, the advantages of cost is low, capacity is big, safe, multiplying power is high, long lifespan；And in use, each first battery unit reaches
By the cooperation automatic equalization of first switch, second switch, the second battery unit and the 3rd battery unit, equalizing circuit is simple,
Easily realize.
2nd, the battery of identical type, the second battery unit, the may be selected in first, second, third battery of the present utility model
Three battery units, first switch, second switch composition non-dissipative equalizing circuit, can realize each first battery unit electricity automatically
Equilibrium, equalizing circuit is simple, cost is low.
3rd, first switch circuit and second switch circuit are connected between the first battery unit the two poles of the earth of the present utility model, should
The upper first switch of first switch circuit and the drive signal of the upper second switch of the second switch circuit are complementary, the first switch
The drive signal of the lower first switch of circuit and the lower second switch of the second circuit is complementary, avoid the occurrence of the first battery unit with
Second battery unit or the independent situation in parallel of the 3rd battery unit, so that the electric quantity balancing effect of each first battery unit
More preferably, there is stronger anti-interference, and by the way of bilateral driving, powerful electricity transfer can be realized.
Brief description of the drawings
The utility model is described in further details below in conjunction with the accompanying drawings.
Fig. 1 is the schematic diagram of the utility model embodiment one.
Fig. 2 is the drive signal schematic diagram of the utility model embodiment one.
Fig. 3 is the schematic diagram of the utility model embodiment two.
Embodiment
Embodiment one, as shown in figure 1, a kind of battery include multiple the first battery units 1 being sequentially connected in series, be connected to it is each
First switch circuit 2 and second switch circuit 3 between first battery unit the two poles of the earth, it is connected to adjacent two first switches circuit 2
Between the second battery unit 4, the 3rd battery unit 5 that is connected between adjacent two second switches circuit 3 and control unit 6,
First switch circuit 2 includes two first switches being serially connected, the positive and negative electrode of the second battery unit 4 two first switches it
Between be connected with first switch circuit 2, second switch circuit 3 includes two second switches being serially connected, the 3rd battery unit 5
Positive and negative electrode is connected between two second switches with second switch circuit 3, and control unit 6 is used to detect each first battery unit 1
Electricity, and corresponding first switch, the break-make of second switch are controlled according to testing result, so that the electricity of each first battery unit 1
It is balanced.
In the present embodiment, a kind of battery includes two the first battery units 1 being serially connected, second battery unit
4th, the 3rd battery unit 5, the first battery unit 1 include multiple in parallel and/or series connection the first battery, the second battery unit
4 include multiple in parallel and/or series connection the second battery, and the 3rd battery unit 5 includes the 3rd electricity multiple in parallel and/or series connection
Pond, first, second, third battery can choose different types of battery, species identical battery can also be chosen, in the present embodiment
In, the first battery selection lithium battery, second, third battery selects lead-acid battery, and two the first battery units 1 include four
The lithium battery being sequentially connected in series, for convenience of describing, two the first battery units 1 are designated as the first battery unit BT1 and lower the respectively
One battery unit BT2；To make the open-circuit voltage substantially phase of the first battery unit 1, the second battery unit 4 and the 3rd battery unit 5
Together, the second battery unit 4 includes three lead-acid batteries being sequentially connected in series, and the 3rd battery unit 5 includes three lead being sequentially connected in series
Sour battery；Also include two first switch circuits 2 and two second switch circuits 3, two first switch circuits 2 include phase respectively
The upper first switch Q1 and lower first switch Q2 that mutually connect, the upper first switch Q3 being serially connected and lower first switch Q4, two
Second switch circuit 3 includes the upper second switch Q5 that is serially connected and lower second switch Q6 respectively, upper second opening of being serially connected
Close Q7 and lower second switch Q8.Upper first switch Q1, upper second switch Q5 source electrode (i.e. input) respectively with upper first battery
Unit B T1 positive pole connection, lower first switch Q2, lower second switch Q6 drain electrode (i.e. output end) respectively with upper first battery list
First BT1 negative pole connection, upper first switch Q3, upper second switch Q7 source electrode (i.e. input) respectively with lower first battery unit
BT2 positive pole connection, lower first switch Q4, lower second switch Q8 drain electrode (i.e. output end) respectively with lower first battery unit
BT2 negative pole connection, the positive pole of the second battery unit 4 respectively with upper first switch Q1 drain electrode and lower first switch Q2 source electrode
Connection, the negative pole of the second battery unit 4 are connected with upper first switch Q3 drain electrode and lower first switch Q4 source electrode respectively, and the 3rd
The positive pole of battery unit 5 is connected with upper second switch Q5 drain electrode and lower second switch Q6 source electrode respectively, the 3rd battery unit 5
Negative pole be connected respectively with upper second switch Q7 drain electrode and lower second switch Q8 source electrode.In the present embodiment, upper first switch
Q1, lower first switch Q2, upper first switch Q3, lower first switch Q4, upper second switch Q5, lower second switch Q6, upper second open
Close Q7, lower second switch Q8 is metal-oxide-semiconductor.
Control unit 6 provides sequential complementation respectively for upper first switch Q1, the lower first switch Q2 of first switch circuit 2
First drive signal and the second drive signal, provide sequential complementary first respectively for upper first switch Q3, lower first switch Q4
Drive signal and the second drive signal, sequential complementation is provided for the upper second switch Q5 of second switch circuit 3, lower second switch Q6
The 3rd drive signal and fourth drive signal, provide that sequential is complementary 3rd to drive for upper second switch Q7, lower second switch Q8
Dynamic signal and fourth drive signal, and the first drive signal and the 3rd drive signal sequential are complementary, the second drive signal and the 4th
Drive signal sequential is complementary.In the present embodiment, as shown in Fig. 2 the first drive signal is PWMA, the second drive signal is
PWMB, the 3rd drive signal are PWMB, fourth drive signal PWMA.
Utility model works principle is：
When upper first battery unit BT1 electricity is more than lower first battery unit BT2, the driving of the output of control unit 6 first
Signal is PWMA, and the second drive signal is PWMB, and the 3rd drive signal is PWMB, fourth drive signal PWMA, in T1,
Q1, Q3, Q6, Q8 are turned on, and Q2, Q4, Q5, Q7 cut-off, form two current loops：BT1+-Q1-BT3+-BT3--Q3-BT1-, BT4+-Q6-BT2+-BT2--Q8-BT4-, in T2, Q2, Q4, Q5, Q7 conducting, Q1, Q3, Q6, Q8 cut-off, form two electric currents and return
Road：BT3+Q2-BT1+-BT1--Q4-BT3-, BT1+-Q5-BT4+-BT4--Q7-BT1-, so as to by upper first battery unit BT1's
Electricity is transferred to down the first battery unit BT2, and is repeated continuously the process of above-mentioned electricity transfer, finally makes the first battery list
First BT1 and lower first battery unit BT2 electric quantity balancing, wherein, BT3 is the 3rd battery unit 4, and BT4 is the 4th battery unit
4。
The difference of embodiment two, the present embodiment and embodiment one is in the first switch in each first switch circuit 2, second
Second switch in on-off circuit 3 is relay, and control unit 6 is according to the feelings of each first battery unit electricity detected
Condition, the power on/off of each relay coil is controlled, other operation principles are identical with described in embodiment one, will not be described here.
It is described above, preferred embodiment only of the present utility model, therefore the utility model implementation can not be limited with this
Scope, i.e., the equivalent changes and modifications made according to present utility model application the scope of the claims and description all should still belong to this
In the range of utility model patent is covered.
Claims (7)
- A kind of 1. battery, it is characterised in that：Including multiple the first battery units being sequentially connected in series, it is connected to each first battery list First switch circuit between first the two poles of the earth, the second battery unit being connected between adjacent two first switches circuit and control are single Member, first switch circuit include two first switches being serially connected, the positive and negative electrode of the second battery unit two first switches it Between be connected with first switch circuit, control unit is used to detect the electricity of each first battery unit, and is controlled according to testing result The break-make of corresponding first switch, so that the electric quantity balancing of each first battery unit.
- A kind of 2. battery according to claim 1, it is characterised in that：Also include being connected to each first battery supply the two poles of the earth Between second switch circuit, the 3rd battery unit that is connected between adjacent two second switches circuit, second switch circuit bag Include two second switches being serially connected, the positive and negative electrode of the 3rd battery unit between two second switches with second switch circuit Connection, control unit is used for the electricity for detecting each first battery unit, and controls the logical of corresponding second switch according to testing result It is disconnected, so that the electric quantity balancing of each first battery unit.
- A kind of 3. battery according to claim 2, it is characterised in that：First battery unit include it is multiple in parallel and/ Or the first battery of series connection, second battery unit include multiple in parallel and/or series connection the second battery, the 3rd battery Unit includes multiple in parallel and/or series connection the 3rd battery, and the open-circuit voltage of first, second, and third battery unit is substantially It is identical.
- A kind of 4. battery according to claim 3, it is characterised in that：First battery is lithium battery or lead-acid battery Either nickel-cadmium cell or Ni-MH battery, second battery are lithium battery either lead-acid battery or nickel-cadmium cell or ni-mh Battery, the 3rd battery are lithium battery either lead-acid battery or nickel-cadmium cell or Ni-MH battery.
- A kind of 5. battery according to Claims 2 or 3 or 4, it is characterised in that：Two first switch is respectively input The upper first switch and output end being connected with the first battery unit positive pole are connected down with the first battery unit negative pole First switch, described control unit are that upper and lower first switch provides the first complementary drive signal of sequential and the second driving respectively Signal.
- A kind of 6. battery according to claim 5, it is characterised in that：Two second switch be respectively input with it is described Lower second that the upper second switch and output end of the connection of first battery unit positive pole are connected with the first battery unit negative pole opens To close, described control unit is that upper and lower second switch provides the 3rd complementary drive signal of sequential and fourth drive signal respectively, the One drive signal and the 3rd drive signal sequential are complementary, and the second drive signal is complementary with fourth drive signal sequential.
- A kind of 7. battery according to Claims 2 or 3 or 4, it is characterised in that：First, second switch is metal-oxide-semiconductor Either triode or IGBT or relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720602747.3U CN206790167U (en) | 2017-05-26 | 2017-05-26 | A kind of battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720602747.3U CN206790167U (en) | 2017-05-26 | 2017-05-26 | A kind of battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206790167U true CN206790167U (en) | 2017-12-22 |
Family
ID=60714247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720602747.3U Withdrawn - After Issue CN206790167U (en) | 2017-05-26 | 2017-05-26 | A kind of battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206790167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113746147A (en) * | 2020-05-27 | 2021-12-03 | 北京小米移动软件有限公司 | Charging circuit, electronic device, charging control method, and readable storage medium |
-
2017
- 2017-05-26 CN CN201720602747.3U patent/CN206790167U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113746147A (en) * | 2020-05-27 | 2021-12-03 | 北京小米移动软件有限公司 | Charging circuit, electronic device, charging control method, and readable storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171222 Effective date of abandoning: 20230425 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20171222 Effective date of abandoning: 20230425 |