CN213817329U - Battery combiner - Google Patents
Battery combiner Download PDFInfo
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- CN213817329U CN213817329U CN202023201952.XU CN202023201952U CN213817329U CN 213817329 U CN213817329 U CN 213817329U CN 202023201952 U CN202023201952 U CN 202023201952U CN 213817329 U CN213817329 U CN 213817329U
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Abstract
The utility model relates to a battery combiner, which connects the outputs of at least two groups of battery packs in parallel to form an output of a path assembly; the method is characterized in that: the device comprises a voltage acquisition device for acquiring the output voltage of each group of battery packs, a bidirectional lifting voltage DC-DC circuit arranged at the output end of each group of battery packs, a microprocessor for controlling all the bidirectional lifting voltage DC-DC circuits, and a plurality of voltage acquisition devices, wherein the outputs of all the bidirectional lifting voltage DC-DC circuits are connected in parallel to form a total output. The utility model discloses in owing to adopted by microprocessor control's two-way lifting voltage DC-DC circuit, make total output set for by microprocessor, all group battery can all participate in work simultaneously, the output that steps up of low-voltage, the step-down output of high voltage.
Description
Technical Field
The utility model relates to a power field, especially a battery combiner, this battery combiner can use the parallelly connected of battery of different output voltage.
Background
At present, to realize the parallel output of multiple batteries, a switch is arranged at the output end of each battery group, the battery group with the highest battery voltage is firstly used for outputting, and when the battery group voltage with the second highest voltage is equal to the first battery group voltage, the second battery group is added. And the like until all the battery packs are connected in parallel for output.
Such a battery combiner has the following disadvantages:
1. only batteries of the same type can be combined, and when the voltages of the battery packs are unbalanced, all the battery packs cannot be put into use at the same time, so that the load capacity is reduced.
2. After the multi-stage batteries are combined, the output voltage can only be the highest voltage in the battery set, and can not be freely selected, and in addition, the voltage is reduced along with the reduction of the capacity of the batteries in the use process.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the aforesaid to present battery combiner is not enough, provides a battery combiner, and this battery combiner adopts two-way lifting voltage DC-DC circuit to each group's group battery output, makes every group battery output unify the output voltage to the settlement.
The utility model discloses a realize that the technical scheme that its technical purpose adopted is: a battery combiner connects the outputs of at least two groups of battery packs in parallel to form a total output; the device comprises a voltage acquisition device for acquiring the output voltage of each group of battery packs, a bidirectional lifting voltage DC-DC circuit arranged at the output end of each group of battery packs, a microprocessor for controlling all the bidirectional lifting voltage DC-DC circuits, and a plurality of voltage acquisition devices, wherein the outputs of all the bidirectional lifting voltage DC-DC circuits are connected in parallel to form a total output.
Further, in the above battery combiner: and a voltage acquisition circuit for detecting the total output.
Further, in the above battery combiner: the voltage acquisition circuit comprises a voltage division circuit which divides the acquired voltage and then is connected with the microprocessor.
Further, in the above battery combiner: the output end of each group of batteries is also provided with a charge-discharge protection circuit which carries out charge-discharge protection on the batteries under the control of the microprocessor.
The utility model discloses in owing to adopted by microprocessor control's two-way lifting voltage DC-DC circuit, make total output set for by microprocessor, all group battery can all participate in work simultaneously, the output that steps up of low-voltage, the step-down output of high voltage.
In addition, the voltage sampling circuit is provided with a voltage division circuit, so that the voltage division circuit is more suitable for batteries (such as lead-acid batteries, ternary lithium batteries, iron phosphate batteries and the like) made of different materials and batteries of different battery systems in the standby power of the communication machine. The battery is also suitable for large high-voltage batteries such as automobile power batteries.
The charging and discharging protection circuit is arranged to charge the battery pack with higher voltage to the battery pack with lower voltage under the control of the microprocessor.
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is the schematic block diagram of the battery combiner of the present invention.
Detailed Description
As shown in fig. 1, this embodiment is a battery combiner, and in this embodiment, outputs of N groups of battery packs in a standby power system of a communication station are combined to output, and a total output power supply of the communication station is output. With the mature technology of the bidirectional Buck-Boost DC-DC circuit, the bidirectional Buck-Boost DC-DC circuit is more and more used at the output end of a power battery, and at present, a plurality of bidirectional Buck-Boost DC-DC circuits are available, and a person skilled in the art can select a bidirectional DC-DC conversion circuit based on Buck-Boost with mature technology.
In the stand-by system of communication machine, the voltage acquisition circuit for acquiring the output voltage of each battery is generally provided with a voltage division circuit, the voltage output by the battery is divided and then input into a microprocessor so as to be suitable for the input voltage of the microprocessor, after digitalization, a comparison can be made in the microprocessor to determine if its voltage matches the voltage rating of the devices in the communication station system, if the voltage is exactly the same as the rated voltage of the device in the communication station system, the output is directly output under the control of the microprocessor, if the voltage is lower than the rated voltage of the communication station system device, the microprocessor controls the bidirectional voltage-lifting DC-DC circuit at the output terminal to boost the voltage to the rated voltage output of the communication station system device, if the output voltage is higher than the rated voltage of the communication station system device, the voltage output is reduced under the control of the microprocessor.
In this embodiment, in order to ensure that the output voltage is the rated input voltage of the communication station system device, a voltage acquisition device is also arranged at the main input end, and the microprocessor sets each bidirectional buck-boost voltage DC-DC circuit to operate according to the output condition of the voltage acquisition device.
The output end of each group of batteries is also provided with a charge-discharge protection circuit which carries out charge-discharge protection on the batteries under the control of the microprocessor.
As shown in fig. 1
1: when Vout has power, this voltage can be divided into a fraction of current to charge each battery through the bi-directional buck-boost DC power module.
2: the charging current and voltage of each path can be managed by a microprocessor through 485 communication or CAM communication.
3: when Vout is not powered, the battery of each path can provide standby power for Vout through the bidirectional buck-boost voltage DC-DC power supply module.
4: the minimum voltage at which each set of cells is discharged and how much power is output to Vout is managed by the CPU.
Claims (4)
1. A battery combiner connects the outputs of at least two groups of battery packs in parallel to form a total output; the method is characterized in that: the device comprises a voltage acquisition device for acquiring the output voltage of each group of battery packs, a bidirectional lifting voltage DC-DC circuit arranged at the output end of each group of battery packs, a microprocessor for controlling all the bidirectional lifting voltage DC-DC circuits, and a plurality of voltage acquisition devices, wherein the outputs of all the bidirectional lifting voltage DC-DC circuits are connected in parallel to form a total output.
2. The battery combiner of claim 1, wherein: and a voltage acquisition circuit for detecting the total output.
3. The battery combiner of claim 2, wherein: the voltage acquisition circuit comprises a voltage division circuit which divides the acquired voltage and then is connected with the microprocessor.
4. The battery combiner of claim 1, 2, or 3, wherein: the output end of each group of batteries is also provided with a charge-discharge protection circuit which carries out charge-discharge protection on the batteries under the control of the microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023201952.XU CN213817329U (en) | 2020-12-25 | 2020-12-25 | Battery combiner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023201952.XU CN213817329U (en) | 2020-12-25 | 2020-12-25 | Battery combiner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213817329U true CN213817329U (en) | 2021-07-27 |
Family
ID=76947749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023201952.XU Active CN213817329U (en) | 2020-12-25 | 2020-12-25 | Battery combiner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213817329U (en) |
-
2020
- 2020-12-25 CN CN202023201952.XU patent/CN213817329U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220804 Address after: 518000 sixth floor, building a, Jinmao science and technology building, building 412, tangyanshan Industrial Zone, guantian community, Shiyan street, Bao'an District, Shenzhen, Guangdong Province Patentee after: Shenzhen Haoxin Energy Co.,Ltd. Address before: 518000 west side of 6 / F, building a, Jinmao science and technology building, building 412, tangkeng Juwei, guantian community, Shiyan street, Bao'an District, Shenzhen, Guangdong Patentee before: Shenzhen Chuyuan Electronic Co.,Ltd. |
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| TR01 | Transfer of patent right |