CN206992739U - Parallel connection device of battery packs - Google Patents
Parallel connection device of battery packs Download PDFInfo
- Publication number
- CN206992739U CN206992739U CN201720751379.9U CN201720751379U CN206992739U CN 206992739 U CN206992739 U CN 206992739U CN 201720751379 U CN201720751379 U CN 201720751379U CN 206992739 U CN206992739 U CN 206992739U
- Authority
- CN
- China
- Prior art keywords
- battery pack
- battery
- control device
- parallel connection
- connection device
- 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
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Abstract
The utility model discloses a kind of parallel connection device of battery packs, the parallel connection device of battery packs includes the first battery pack, the second battery pack, wire and three kinds of control devices, first battery pack is connected with the second battery pack by conductor in parallel, first battery pack and the second battery pack rear end are connected with control device, the control device switchs for control circuit, a kind of control device is diode or semiconductor power device or relay, and the anode of diode is connected with the positive pole of battery pack；Relay is electric control device, and relay controls for automated circuit.By the above-mentioned means, the utility model can ensure that the battery pack of different voltages can external power output.
Description
Technical field
Field of power supplies is the utility model is related to, more particularly to a kind of parallel connection device of battery packs.
Background technology
In high-power applications scene, the power supply that single battery group provides is unable to reach requirement, it is necessary to battery pack is in parallel,
To improve supply current, the positive pole of each cell is connected with discharge and recharge port in existing batteries in parallel connection group, due to each
Battery pack terminal voltage is inconsistent, and high-tension battery impacts the battery of low-voltage by discharge and recharge port, and electric current occurs and pours in down a chimney,
In the presence of very big potential safety hazard.
Utility model content
The utility model can ensure different voltages mainly solving the technical problems that provide a kind of parallel connection device of battery packs
Battery pack can external power output.
In order to solve the above technical problems, the technical scheme that the utility model uses is：
Embodiment one:
A kind of parallel connection device of battery packs as described in Figure 1, a kind of parallel connection device of battery packs include the first battery pack, second
Battery pack, wire and control device, first battery pack are connected with the second battery pack by conductor in parallel, the first battery pack and
Second battery pack rear end is connected with control device, and the control device is diode, the anode of diode and the positive pole of battery pack
It is connected, when voltage difference is more than diode drop, the external power output of battery pack of high voltage, when voltage is close, two
Diode simultaneously turns on, the first battery pack and the external power output of the second battery pack.
Embodiment two:
A kind of parallel connection device of battery packs as described in Figure 2, a kind of parallel connection device of battery packs include the first battery pack, second
Battery pack, wire and control device, first battery pack are connected with the second battery pack by conductor in parallel, the first battery pack and
Second battery pack rear end is connected with control device, and the control device is semiconductor power device, and high-voltage battery group makes partly to lead
Body power device turns on, the external power output of high-voltage battery group, when the voltage of two Battery pack groups reaches unanimity, two semiconductors
Power device turns on.
Embodiment three:
A kind of parallel connection device of battery packs as described in Figure 3, a kind of parallel connection device of battery packs include the first battery pack, second
Battery pack, wire and control device, first battery pack are connected with the second battery pack by conductor in parallel, the first battery pack and
Second battery pack rear end is connected with control device, and the control device is relay, and relay is electric control device, and relay is used
Controlled in automated circuit, when the voltage of one of battery pack is higher, the relay closure at high-voltage battery group, high electricity
The external power output of piezoelectric battery group, when the voltage of two Battery pack groups reaches unanimity, the relay closure at two Battery pack groups, two groups
Battery pack while external power output.
Compared with prior art, the beneficial effects of the utility model are：It can ensure that the battery pack of different voltages can be right
Outer power output.
Brief description of the drawings
Fig. 1 is the structural representation of the parallel connection device of battery packs of embodiment one.
Fig. 2 is the structural representation of the parallel connection device of battery packs of embodiment two.
Fig. 3 is the structural representation of the parallel connection device of battery packs of embodiment three.
Embodiment
The utility model preferred embodiment is described in detail below in conjunction with the accompanying drawings, so that the advantages of utility model and spy
Sign can be easier to be readily appreciated by one skilled in the art, so as to make apparent clear and definite boundary to the scope of protection of the utility model
It is fixed.
Embodiment one:
A kind of parallel connection device of battery packs as described in Figure 1, a kind of parallel connection device of battery packs include the first battery pack 1, the
Two battery packs 2, wire 3 and control device 4, the battery pack 2 of the first battery pack 1 and second are connected in parallel by wire 3, and first
The rear end of 1 and second battery pack of battery pack 2 is connected with control device 4, and the control device 4 is diode, the anode of diode with
The positive pole of battery pack is connected.
During work, when voltage difference is more than diode drop, the external power output of battery pack of high voltage, treat that voltage connects
When near, two diodes simultaneously turn on, 2 external power output of the first battery pack 1 and the second battery pack.
Embodiment two:
A kind of parallel connection device of battery packs as described in Figure 2, a kind of parallel connection device of battery packs include the first battery pack 1, the
Two battery packs 2, wire 3 and control device 4, the battery pack 2 of the first battery pack 1 and second are connected in parallel by wire 3, and first
The rear end of 1 and second battery pack of battery pack 2 is connected with control device 4, and the control device 4 is semiconductor power device, semiconductor
Power device is controlled by pulse width modulation (PWM).
During work, when the voltage of one of battery pack is higher, by taking the first battery pack 1 as an example, the high electricity of the first battery pack 1
Pressure turns on semiconductor power device, 1 external power output of the first battery pack, treats the first battery pack 1 and the second battery pack 2
When voltage reaches unanimity, two semiconductor power devices turn on, the first battery pack 1 and the second battery pack 2 while external output work
Rate.
Embodiment three:
A kind of parallel connection device of battery packs as described in Figure 3, a kind of parallel connection device of battery packs include the first battery pack 1, the
Two battery packs 2, wire 3 and control device 4, the battery pack 2 of the first battery pack 1 and second are connected in parallel by wire 3, and first
The rear end of 1 and second battery pack of battery pack 2 is connected with control device 4, and the control device 4 is relay, and relay is electric control
Device, relay control for automated circuit.
During work, when the voltage of one of battery pack is higher, by taking the first battery pack 1 as an example, at the first battery pack 1
Relay closes, and 1 external power output of the first battery pack, treats that the first battery pack 1 and the voltage of the second battery pack 2 reach unanimity
When, the relay at the first battery pack 1 and the second battery pack 2 closes, and the first battery pack 1 and the second battery pack 2 externally simultaneously
Power output.
A kind of parallel connection device of battery packs of the utility model, it can ensure that the battery pack of different voltages can external output work
Rate.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical areas, similarly it is included in scope of patent protection of the present utility model.
Claims (1)
- A kind of 1. parallel connection device of battery packs, it is characterised in that：The parallel connection device of battery packs includes the first battery pack, the second battery Group, wire and three kinds of control devices, first battery pack are connected with the second battery pack by conductor in parallel, the first battery pack and Second battery pack rear end is connected with control device, and the control device switchs for control circuit, and a kind of control device is two poles Pipe or semiconductor power device or relay, the anode of diode are connected with the positive pole of battery pack；Relay is electric control device, Relay controls for automated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720751379.9U CN206992739U (en) | 2017-06-26 | 2017-06-26 | Parallel connection device of battery packs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720751379.9U CN206992739U (en) | 2017-06-26 | 2017-06-26 | Parallel connection device of battery packs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206992739U true CN206992739U (en) | 2018-02-09 |
Family
ID=61399284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720751379.9U Expired - Fee Related CN206992739U (en) | 2017-06-26 | 2017-06-26 | Parallel connection device of battery packs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206992739U (en) |
-
2017
- 2017-06-26 CN CN201720751379.9U patent/CN206992739U/en not_active Expired - Fee Related
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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: 20180209 Termination date: 20180626 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |