CN214412365U - Simple battery series-parallel connection switching structure - Google Patents
Simple battery series-parallel connection switching structure Download PDFInfo
- Publication number
- CN214412365U CN214412365U CN202120672238.4U CN202120672238U CN214412365U CN 214412365 U CN214412365 U CN 214412365U CN 202120672238 U CN202120672238 U CN 202120672238U CN 214412365 U CN214412365 U CN 214412365U
- Authority
- CN
- China
- Prior art keywords
- battery
- functional device
- series
- parallel
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a succinct battery series-parallel connection switching structure, it includes the first of the same grade or the same voltage, the second battery, connect the first function device that has the switch efficiency between the negative pole of first battery and the positive pole of second battery, connect the second function device that has the switch efficiency between the negative pole of first battery and the negative pole of second battery, connect the third function device that has the switch efficiency between the positive pole of first battery and the positive pole of second battery, the positive pole of first battery and the negative pole of second battery are as the positive pole and the negative pole of total output end; the first battery and the second battery are switched to be connected in series or in parallel by controlling the on and off of the first, second and third functional devices. No matter use under the condition of establishing ties or parallelly connected, all can realize two sets of battery equilibrium uses, can not appear the condition that one of them battery overdischarge, guarantee battery life, and need not change different plug wires, only need switch battery series-parallel connection state, it is convenient to use.
Description
The technical field is as follows:
the utility model relates to a battery technology field refers in particular to a succinct battery series-parallel connection switching structure.
Background art:
with the rapid development of human society, various batteries are increasingly applied in life, and in some application occasions, the parallel connection state and the serial connection state of two batteries are needed.
As shown in fig. 1, the voltage of each battery is 12V, two groups of batteries are connected in series to realize 12V voltage output, and a single battery outputs 12V voltage; specifically, the negative electrode of the first group battery 101 is connected to the positive electrode of the second group battery 102 to realize series connection, and the positive electrode of the first group battery 101 and the negative electrode of the second group battery 102 are used as 24V output terminals; the positive and negative electrodes of the second group of cells 102 serve as 12V output terminals. In the use process, when a 12V battery needs to be used, a wire is directly inserted into the 12V output terminal; when a 24V battery is needed, the 24V battery is directly plugged into a 24V output terminal, and different voltage requirements are realized through different terminals and plug wires.
In the implementation process, when only 12V is needed, the situation that only one set of 12V batteries is used without compensation charging often occurs, the 12V battery set is over-discharged, and the other 12V battery set is not used, so that the two sets of batteries are unbalanced. When the differential pressure of the two groups of batteries is increased to a certain value, the whole battery pack (namely the two groups of batteries) is damaged, and the damage rate is quite high; sometimes, the electric equipment is damaged by inserting wrong wires, so that great hidden danger exists.
In view of the above, the present inventors propose the following.
The utility model has the following contents:
an object of the utility model is to overcome prior art not enough, provide a succinct battery cluster parallel switch structure.
In order to solve the technical problem, the utility model discloses a following technical scheme: the simple battery series-parallel connection switching structure comprises a first battery and a second battery which are of the same grade or the same voltage, a first functional device with switching efficiency is connected between the negative electrode of the first battery and the positive electrode of the second battery, a second functional device with switching efficiency is connected between the negative electrode of the first battery and the negative electrode of the second battery, a third functional device with switching efficiency is connected between the positive electrode of the first battery and the positive electrode of the second battery, and the positive electrode of the first battery and the negative electrode of the second battery are used as the positive electrode and the negative electrode of a total output end; the first battery and the second battery are switched to be connected in series or in parallel by controlling the on and off of the first functional device, the second functional device and the third functional device.
Further, in the above technical solution, when the first functional device is closed and the second functional device and the third functional device are in an open state, the first battery and the second battery are connected in series, and the output voltage of the total output terminal is the sum of the voltages of the first battery and the second battery; when the second functional device and the third functional device are closed and the first functional device is in an open state, the first battery and the second battery are connected in parallel, and the output voltage of the total output end is half of the sum of the voltages of the first battery and the second battery.
Further, in the above technical solution, the first functional device, the second functional device, and the third functional device are all mechanical switching devices.
Further, in the above technical solution, the mechanical switching device includes a switch, a relay, and a contactor.
Further, in the above technical solution, the first functional device, the second functional device, and the third functional device are all electronic switch devices.
Further, in the above technical solution, the electronic switch device includes an MOS transistor, an IGBT transistor, and a solid-state relay.
After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect: the utility model discloses connect first function device, second function device and third function device between first battery and second battery, its structure is very simple to when later stage uses, directly through the closure and the disconnection of controlling first function device, second function device and third function device, switch over first battery and second battery series connection or parallel connection, can realize first battery and second battery series connection output or parallel output, in order to satisfy different operation requirements; no matter use under the condition of establishing ties or parallelly connected, can all realize two sets of battery balanced uses, can not appear the condition that one of them battery overdischarged, can guarantee the life of battery better, need not change different plug wires moreover, only need switch first function device, second function device and third function device the state can, it is more convenient to use.
Description of the drawings:
FIG. 1 is a wiring diagram of two groups of batteries in the prior art;
fig. 2 is a wiring diagram of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to the following specific embodiments and accompanying drawings.
As shown in fig. 2, the compact battery series-parallel switching structure includes a first battery 1 and a second battery 2 with the same level or the same voltage, a first functional device 3 with switching efficiency is connected between a negative electrode of the first battery 1 and a positive electrode of the second battery 2, a second functional device 4 with switching efficiency is connected between the negative electrode of the first battery 1 and the negative electrode of the second battery 2, a third functional device 5 with switching efficiency is connected between the positive electrode of the first battery 1 and the positive electrode of the second battery 2, and the positive electrode of the first battery 1 and the negative electrode of the second battery 2 are used as a positive electrode and a negative electrode of a total output terminal 100; the first battery 1 is switched to be connected in series or in parallel with the second battery 2 by controlling the on and off of the first functional device 3, the second functional device 4, and the third functional device 5. The utility model discloses connect first function device 3, second function device 4 and third function device 5 between first battery 1 and second battery 2, its structure is very simple, and when using at later stage, directly through the closure and the disconnection of controlling first function device 3, second function device 4 and third function device 5, switch first battery 1 and second battery 2 series connection or parallel connection, can realize first battery 1 and second battery 2 series connection output or parallel output, in order to satisfy different operation requirements; no matter use under the condition of series connection or parallelly connected, can all realize two sets of battery balanced uses, can not appear the condition that one of them battery overdischarges, can guarantee the life of battery better, need not change different plug wires moreover, only need switch first functional device 3, second functional device 4 and third functional device 5 the state can, it is more convenient to use.
The utility model discloses a theory of operation does: when the first functional device 3 is closed and the second functional device 4 and the third functional device 5 are in an open state, the first battery 1 and the second battery 2 are connected in series, the output voltage of the total output end 100 is the sum of the voltages of the first battery 1 and the second battery 2, and if the first battery 1 and the second battery 2 are both 12V batteries, the output voltage of the total output end 100 is 24V; when the second functional device 4 and the third functional device 5 are closed and the first functional device 3 is in an open state, the first battery 1 and the second battery 2 are connected in parallel, the output voltage of the total output end 100 is half of the sum of the voltages of the first battery 1 and the second battery 2, and if the first battery 1 and the second battery 2 are both 12V batteries, the output voltage of the total output end 100 is 12V.
The first functional device 3, the second functional device 4 and the third functional device 5 are all mechanical switching devices. Specifically, the mechanical switching device comprises a switch, a relay and a contactor.
Alternatively, the first functional device 3, the second functional device 4 and the third functional device 5 are all electronic switching devices. Specifically, the electronic switching device comprises a MOS tube, an IGBT tube and a solid-state relay.
To sum up, the utility model discloses connect first function device 3, second function device 4 and third function device 5 between first battery 1 and second battery 2, its structure is very simple to when using at the later stage, directly through the closure and the disconnection of controlling first function device 3, second function device 4 and third function device 5, switch first battery 1 and second battery 2 series connection or parallel connection, can realize first battery 1 and second battery 2 series output or parallel output, in order to satisfy different operation requirements; no matter use under the condition of series connection or parallelly connected, can all realize two sets of battery balanced uses, can not appear the condition that one of them battery overdischarges, can guarantee the life of battery better, need not change different plug wires moreover, only need switch first functional device 3, second functional device 4 and third functional device 5 the state can, it is more convenient to use.
Of course, the above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the constructions, features, and principles of the present invention in accordance with the claims of the present invention are intended to be included in the scope of the present invention.
Claims (6)
1. A compact battery series-parallel switching structure comprising a first battery (1) and a second battery (2) of the same grade or the same voltage, characterized in that: a first functional device (3) with switching efficiency is connected between the negative electrode of the first battery (1) and the positive electrode of the second battery (2), a second functional device (4) with switching efficiency is connected between the negative electrode of the first battery (1) and the negative electrode of the second battery (2), a third functional device (5) with switching efficiency is connected between the positive electrode of the first battery (1) and the positive electrode of the second battery (2), and the positive electrode of the first battery (1) and the negative electrode of the second battery (2) are used as the positive electrode and the negative electrode of a total output end (100); the first battery (1) and the second battery (2) are switched to be connected in series or in parallel by controlling the on and off of the first functional device (3), the second functional device (4) and the third functional device (5).
2. The compact battery series-parallel switching architecture of claim 1, wherein: when the first functional device (3) is closed and the second functional device (4) and the third functional device (5) are in an open state, the first battery (1) and the second battery (2) are connected in series, and the output voltage of the total output end (100) is the sum of the voltages of the first battery (1) and the second battery (2); when the second functional device (4) and the third functional device (5) are closed and the first functional device (3) is in an open state, the first battery (1) and the second battery (2) are connected in parallel, and the output voltage of the total output end (100) is half of the sum of the voltages of the first battery (1) and the second battery (2).
3. The compact battery series-parallel switching structure according to claim 1 or 2, wherein: the first functional device (3), the second functional device (4) and the third functional device (5) are all mechanical switch devices.
4. The compact battery series-parallel switching architecture of claim 3, wherein: the mechanical switch device comprises a switch, a relay and a contactor.
5. The compact battery series-parallel switching structure according to claim 1 or 2, wherein: the first functional device (3), the second functional device (4) and the third functional device (5) are all electronic switching devices.
6. The compact battery series-parallel switching architecture of claim 5, wherein: the electronic switch device comprises an MOS tube, an IGBT tube and a solid-state relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120672238.4U CN214412365U (en) | 2021-04-01 | 2021-04-01 | Simple battery series-parallel connection switching structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120672238.4U CN214412365U (en) | 2021-04-01 | 2021-04-01 | Simple battery series-parallel connection switching structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214412365U true CN214412365U (en) | 2021-10-15 |
Family
ID=78031894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120672238.4U Expired - Fee Related CN214412365U (en) | 2021-04-01 | 2021-04-01 | Simple battery series-parallel connection switching structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214412365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117595459A (en) * | 2024-01-17 | 2024-02-23 | 深圳市南霸科技有限公司 | Output voltage switching system and emergency starting power supply |
-
2021
- 2021-04-01 CN CN202120672238.4U patent/CN214412365U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117595459A (en) * | 2024-01-17 | 2024-02-23 | 深圳市南霸科技有限公司 | Output voltage switching system and emergency starting power supply |
| CN117595459B (en) * | 2024-01-17 | 2024-05-28 | 深圳市南霸科技有限公司 | Output voltage switching system and emergency starting power supply |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101017986B (en) | Balancer in the charging/discharging process of the dynamic battery group | |
| CN102195314B (en) | Circuit and method for balancing battery cells | |
| US20190181668A1 (en) | Power supply circuit for electronic cigarette and electronic cigarette | |
| CN212726500U (en) | Series-parallel battery system | |
| CN107302248A (en) | A kind of electric tool | |
| CN214412365U (en) | Simple battery series-parallel connection switching structure | |
| CN111682270A (en) | Series-parallel switching device and battery pack comprising same | |
| CN207021730U (en) | A kind of electric tool | |
| CN202931003U (en) | Battery charging circuit and power supply circuit | |
| CN112311050A (en) | Charging device and control method thereof | |
| CN102545280A (en) | Charging circuit | |
| CN105207332B (en) | Electric car charger intelligent control circuit | |
| CN108448185A (en) | Electrokinetic cell system | |
| CN211957829U (en) | Series-parallel switching device and battery pack comprising same | |
| CN209516674U (en) | Twin voltage battery energy storage device | |
| CN1858934A (en) | Grouping charging and discharging work method for accumulator | |
| CN209488231U (en) | Electrokinetic cell system and vehicle | |
| CN208835164U (en) | A kind of low speed vehicle lithium battery parallel system | |
| CN203983422U (en) | The large electric current lithium ion battery group with self-protection function and extensibility | |
| CN209200050U (en) | Apparatus for storing electrical energy and electric tool | |
| CN207835092U (en) | A kind of electric vehicle Special contactor | |
| CN112952968A (en) | Electricity storage device and electric vehicle power supply system comprising same | |
| CN201766394U (en) | Charging device with balancing circuit | |
| CN111446745A (en) | Voltage-stabilizing and voltage-boosting battery pack adopting multi-stage battery cells connected in parallel and voltage boosting method thereof | |
| CN218548737U (en) | Battery pack with multiple voltage output states and power supply system of electric equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211015 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |