CN114883733B - Dual-voltage output battery pack - Google Patents
Dual-voltage output battery pack Download PDFInfo
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- CN114883733B CN114883733B CN202210452226.XA CN202210452226A CN114883733B CN 114883733 B CN114883733 B CN 114883733B CN 202210452226 A CN202210452226 A CN 202210452226A CN 114883733 B CN114883733 B CN 114883733B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/269—Mechanical means for varying the arrangement of batteries or cells for different uses, e.g. for changing the number of batteries or for switching between series and parallel wiring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a double-voltage output battery pack, which comprises: the battery pack comprises a shell, a battery pack connecting seat, a first battery cell group with a positive electrode output and a negative electrode output, and a second battery cell group with a positive electrode output and a negative electrode output; when the conversion seat is positioned at the first voltage position, the first short-circuit terminal is spliced with the first inner terminal, the second short-circuit terminal is spliced with the second inner terminal, the third short-circuit terminal is spliced with the third inner terminal, the fourth short-circuit terminal is spliced with the fourth inner terminal, and the battery pack outputs a first voltage outwards; when the conversion seat is positioned at the second voltage position, the sixth short-circuit terminal is spliced with the first inner terminal, the fifth short-circuit terminal is spliced with the fourth inner terminal, and the battery pack outputs second voltage outwards. The invention realizes linkage switching of serial and parallel voltages in the battery pack, and has the advantages of automatic conversion, compact, simple and reliable structure, low cost and the like.
Description
Technical Field
The invention relates to a double-voltage output battery pack, and belongs to the technical field of batteries.
Background
Power tools are widely used in domestic and industrial applications as an electrical load comprising a motor. With the continuous development of battery manufacturing technology, more and more electric tools use batteries as power sources to form battery-type electric tools without power lines.
Different types of battery powered tools often have different voltage and current requirements, and if each type of battery powered tool is equipped with a single voltage level battery to provide voltage and current to the power tool, the battery may lack availability and convenience for the power tools produced by the same manufacturer.
Aiming at the characteristics that different tools have different requirements on the output voltage and the output current of the battery pack, when more than two groups of battery packs are arranged in the battery pack, the parallel output voltage can not change to obtain larger output current or can obtain longer working time under the condition that the tool current is limited, and the serial output can obtain higher output voltage output under the condition that the tool current is unchanged or can obtain longer working time under the condition that the tool power is kept unchanged, so how to design a battery pack which simultaneously has two voltage outputs in series-parallel connection and can be stably matched with different voltage electric tools is a technical problem which needs to be solved by the technicians in the field, and the voltage output conversion device is added in the tool to realize multi-voltage output between the battery pack and the tool is complex in structure, high in cost and low in reliability.
Disclosure of Invention
The purpose is as follows: in order to overcome the defects in the prior art, the invention provides a double-voltage output battery pack.
The technical scheme is as follows: in order to solve the technical problems, the invention adopts the following technical scheme:
a dual voltage output battery pack comprising: the battery pack comprises a shell, a battery pack connecting seat, a first battery cell group with a positive electrode output and a negative electrode output, and a second battery cell group with a positive electrode output and a negative electrode output;
further comprises:
the first positive electrode output terminal, the second positive electrode output terminal, the first negative electrode output terminal and the second negative electrode output terminal are outwards connected with the inserting sheet terminal on the tool through the battery pack inserting opening on the battery pack connecting seat, the first positive electrode output terminal and the second positive electrode output terminal are respectively and electrically connected with the positive electrodes of the first battery cell group and the second battery cell group, and the first negative electrode output terminal and the second negative electrode output terminal are respectively and electrically connected with the negative electrodes of the first battery cell group and the second battery cell group;
a first internal terminal is electrically connected with the first positive electrode output terminal, a second internal terminal is electrically connected with the second positive electrode output terminal, a third internal terminal is electrically connected with the first negative electrode output terminal, and a fourth internal terminal is electrically connected with the second negative electrode output terminal;
the conversion seat is arranged on the battery pack and comprises a first voltage position and a second voltage position, a first short-circuit terminal, a second short-circuit terminal, a third short-circuit terminal and a fourth short-circuit terminal are arranged at the first voltage position, the first short-circuit terminal is electrically connected with the second short-circuit terminal, the third short-circuit terminal is electrically connected with the fourth short-circuit terminal, a fifth short-circuit terminal and a sixth short-circuit terminal are arranged at the second voltage position, and the fifth short-circuit terminal is electrically connected with the sixth short-circuit terminal;
when the conversion seat is positioned at the first voltage position, the first short-circuit terminal is spliced with the first inner terminal, the second short-circuit terminal is spliced with the second inner terminal, the third short-circuit terminal is spliced with the third inner terminal, the fourth short-circuit terminal is spliced with the fourth inner terminal, and the battery pack outputs a first voltage outwards;
when the conversion seat is positioned at the second voltage position, the sixth short-circuit terminal is spliced with the first inner terminal, the fifth short-circuit terminal is spliced with the fourth inner terminal, and the battery pack outputs second voltage outwards.
Preferably, the switching seat is movably mounted between the battery pack and the switching seat, and the switching seat can be switched between the first voltage position and the second voltage position.
Preferably, the first voltage position and the second voltage position are located at symmetrical positions on the conversion seat, and the first voltage position and the second voltage position can be switched by rotating 180 degrees for plugging after the conversion seat is pulled out.
The battery pack locking device comprises a battery pack locking device, a battery pack locking device and a battery pack locking device, wherein the battery pack locking device is used for locking a tool with the battery pack, and the battery pack can be separated from the tool after the battery pack locking device is pressed.
Preferably, the first positive electrode output terminal and the first internal terminal are made of metal conductive materials, the second positive electrode output terminal and the second internal terminal are made of metal conductive materials, the first negative electrode output terminal and the third internal terminal are made of metal conductive materials, and the second negative electrode output terminal and the fourth internal terminal are made of metal conductive materials.
Preferably, the first shorting terminal and the second shorting terminal are made of a metal conductive material, the third shorting terminal and the fourth shorting terminal are made of a metal conductive material, and the fifth shorting terminal and the sixth shorting terminal are made of a metal conductive material.
Preferably, the first positive electrode output terminal is electrically connected to the first inner terminal through a printed circuit board or a wire, the second positive electrode output terminal is electrically connected to the second inner terminal through a printed circuit board or a wire, the first negative electrode output terminal is electrically connected to the third inner terminal through a printed circuit board or a wire, and the second negative electrode output terminal is electrically connected to the fourth inner terminal through a printed circuit board or a wire.
Preferably, the first shorting terminal is electrically connected to the second shorting terminal through the printed circuit board or the wire, the third shorting terminal is electrically connected to the fourth shorting terminal through the printed circuit board or the wire, and the fifth shorting terminal is electrically connected to the sixth shorting terminal through the printed circuit board or the wire.
Preferably, the first battery cell group and the second battery cell group are respectively composed of a plurality of battery cells.
As a preferable scheme, the first battery cell group and the second battery cell group are respectively formed by connecting the battery cells with the same quantity, the same voltage and the same capacity in series or in parallel.
The beneficial effects are that: the dual-voltage output battery pack provided by the invention realizes linkage switching of serial and parallel voltages in the battery pack, and has the advantages of automatic conversion, compact, simple and reliable structure, low cost and the like.
Drawings
Fig. 1 is a schematic diagram of a dual voltage output battery pack according to the present invention.
Fig. 2 is a schematic diagram of the internal structure of the dual voltage output battery pack according to the present invention.
Fig. 3 is a schematic diagram showing the circuit connection between the conductive terminals of the dual-voltage output battery pack and the internal battery cell group according to the present invention.
Fig. 4 is a schematic diagram showing a connection mode of the dual-voltage output battery pack and the first voltage tool according to the present invention.
Fig. 5 is a schematic plugging diagram of terminals of the connection state of the dual-voltage output battery pack and the first voltage tool according to the present invention.
Fig. 6 is a schematic diagram showing the connection state of the dual-voltage output battery pack and the first voltage tool.
Fig. 7 is a schematic diagram of a connection mode of the dual voltage output battery pack and the second voltage tool according to the present invention.
Fig. 8 is a schematic diagram showing the connection state of the dual-voltage output battery pack and the second voltage tool according to the present invention.
Fig. 9 is a schematic diagram showing the connection state of the dual voltage output battery pack and the second voltage tool.
Detailed Description
The invention will be further described with reference to specific examples.
As shown in fig. 1 and 2, a preferred embodiment of a dual voltage output battery pack 22 includes: the battery pack comprises a shell 1, a battery pack connecting seat 101, a battery pack lock catch 19, a battery pack button 20, a first battery cell group 29 which is composed of a plurality of battery cells and has an anode output and a cathode output, and a second battery cell group 30 which is composed of a plurality of battery cells and has an anode output and a cathode output, wherein the battery pack connecting seat 101 is a part of the shell 1 and is used for being connected with a tool, the battery pack lock catch 19 locks the tool and the battery pack, and the battery pack can be separated from the tool after the battery pack button 20 is pressed.
As shown in fig. 3, the first positive output terminal 2, the second positive output terminal 3, the first negative output terminal 4 and the second negative output terminal 5 are sequentially disposed in the battery pack connection seat 101, the first positive output terminal 2, the second positive output terminal 3, the first negative output terminal 4 and the second negative output terminal 5 sequentially pass through the first battery pack socket 201 at the end of the battery pack connection seat 101, the second battery pack socket 301, the third battery pack socket 401 and the fourth battery pack socket 501 are electrically connected to the tab terminal on the tool, the first positive output terminal 2 and the second positive output terminal 3 are electrically connected to the positive electrodes of the first battery cell group 29 and the second battery cell group 30, and the first negative output terminal 4 and the second negative output terminal 5 are electrically connected to the negative electrodes of the first battery cell group 29 and the second battery cell group 30.
The first internal terminal 12 is electrically connected to the first positive output terminal 2 via a first connection portion 32, the second internal terminal 13 is electrically connected to the second positive output terminal 3 via a second connection portion 33, the third internal terminal 14 is electrically connected to the first negative output terminal 4 via a third connection portion 34, and the fourth internal terminal 15 is electrically connected to the second negative output terminal 5 via a fourth connection portion 35.
The conversion seat 21 is installed in on the recess of battery package 22 battery package connecting seat 101, conversion seat 21 is including setting up first voltage position and the second voltage position on conversion board 31 first voltage position is equipped with first short circuit terminal 8, second short circuit terminal 9, third short circuit terminal 10 and fourth short circuit terminal 11, first short circuit terminal 8 with keep the electricity through first short circuit portion 16 between the second short circuit terminal 9 and be connected, third short circuit terminal 10 with keep the electricity through second short circuit portion 17 between the fourth short circuit terminal 11 be connected be equipped with fifth short circuit terminal 6 and sixth short circuit terminal 7 in the second voltage position, fifth short circuit terminal 6 with keep the electricity through third short circuit portion 18 between the sixth short circuit terminal 7 to be connected.
When the conversion seat 21 is located at the first voltage position, the first shorting terminal 8 is plugged with the first inner terminal 12, the second shorting terminal 9 is plugged with the second inner terminal 13, the third shorting terminal 10 is plugged with the third inner terminal 14, the fourth shorting terminal 11 is plugged with the fourth inner terminal 15, and the battery pack 22 outputs a first voltage outwards.
When the conversion seat 21 is located at the second voltage position, the sixth short-circuit terminal 7 is plugged with the first inner terminal 12, the fifth short-circuit terminal 6 is plugged with the fourth inner terminal 15, and the battery pack 22 outputs a second voltage outwards.
In a preferred embodiment of the dual voltage output battery pack 22, the switch seat 21 and the battery pack 22 are movably mounted, and the switch seat 21 can be switched between the first voltage position and the second voltage position.
The first voltage position and the second voltage position are located at symmetrical positions on the conversion seat 21, and the first voltage position and the second voltage position can be switched by rotating 180 degrees for plugging after the conversion seat 21 is pulled out.
In a preferred embodiment of the dual voltage output battery pack 22, the first positive output terminal 2 and the first internal terminal 12 are made of one piece of a metal conductive material, the second positive output terminal 3 and the second internal terminal 13 are made of one piece of a metal conductive material, the first negative output terminal 4 and the third internal terminal 14 are made of one piece of a metal conductive material, and the second negative output terminal 5 and the fourth internal terminal 15 are made of one piece of a metal conductive material.
The first shorting terminal 8 and the second shorting terminal 9 are made of metal conductive materials, the third shorting terminal 10 and the fourth shorting terminal 11 are made of metal conductive materials, and the fifth shorting terminal 6 and the sixth shorting terminal 7 are made of metal conductive materials.
In the preferred embodiment of the dual voltage output battery pack 22, the first positive output terminal 2 is electrically connected to the first internal terminal 12 through a printed circuit board or a wire, the second positive output terminal 3 is electrically connected to the second internal terminal 13 through a printed circuit board or a wire, the first negative output terminal 4 is electrically connected to the third internal terminal 14 through a printed circuit board or a wire, and the second negative output terminal 5 is electrically connected to the fourth internal terminal 15 through a printed circuit board or a wire.
The first shorting terminal 8 is electrically connected with the second shorting terminal 9 through the printed circuit board or the wire, the third shorting terminal 10 is electrically connected with the fourth shorting terminal 11 through the printed circuit board or the wire, and the fifth shorting terminal 6 is electrically connected with the sixth shorting terminal 7 through the printed circuit board or the wire.
In a preferred embodiment of the dual voltage output battery pack 22, the first cell group 29 and the second cell group 30 are respectively composed of the same number of cells, the same voltage and the same capacity, which are connected in series or in parallel.
Preferably, the number of the first battery cells 29 and the second battery cells 30 is 5-20 knots, and the voltage of the battery cells is 3.2-4.0V.
In this embodiment, the battery pack 22 includes a first battery cell group 29 and a second battery cell group 30, where the first battery cell group 29 and the second battery cell group 30 are formed by connecting 5 battery cells with a nominal voltage of 3.6V in series, i.e., the nominal voltage of the positive electrode and the negative electrode of the first battery cell group 29 is 5×3.6=18v, and the nominal voltage of the positive electrode and the negative electrode of the second battery cell group 30 is 5×3.6=18v.
Example 1:
as shown in fig. 4-6, when the dual-voltage output battery pack is used with the first voltage tool, the first positive electrode tab 25 and the first negative electrode tab 26 on the first voltage tool 23 are inserted into the first positive electrode output terminal 2 and the second negative electrode output terminal 5 from the first battery pack insertion opening 201 and the fourth battery pack insertion opening 501, respectively.
The conversion seat 21 is located at the first voltage position, the first short-circuit terminal 8 is plugged with the first inner terminal 12, the second short-circuit terminal 9 is plugged with the second inner terminal 13, the third short-circuit terminal 10 is plugged with the third inner terminal 14, and the fourth short-circuit terminal 11 is plugged with the fourth inner terminal 15.
The first positive electrode inserting sheet 25 of the first voltage tool 23 is connected with the positive electrode of the first battery cell group 29 through the first positive electrode output terminal 2, the positive electrode of the second battery cell group 30 is connected with the second positive electrode output terminal 3, and the second positive electrode output terminal 3 is communicated with the first positive electrode output terminal 2 through the first short circuit terminal 8 and the second short circuit terminal 9, so that the positive electrode of the second battery cell group 30 is in equipotential with the positive electrode of the first battery cell group 29 and is conducted with the first positive electrode inserting sheet 25 of the first voltage tool together.
The first negative electrode inserting sheet 26 of the first voltage tool 23 is connected with the negative electrode of the second cell group 30 through the second negative electrode output terminal 5, the negative electrode of the first cell group 29 is connected with the first negative electrode output terminal 4, and the first negative electrode output terminal 4 is communicated with the second negative electrode output terminal 5 through the third short circuit terminal 10 and the fourth short circuit terminal 11, so that the negative electrode of the first cell group 29 and the negative electrode of the second cell group 30 are in equipotential and are communicated with the first negative electrode inserting sheet 26 of the first voltage tool together.
The first and second battery cell groups 29, 30 of the battery pack 22 are output in parallel, and the battery pack 22 outputs a first voltage, such as 18V, outwards, and the battery pack 22 has a higher discharge current capability and a longer operation time.
Example 2:
as shown in fig. 7-9, when the dual-voltage output battery pack is used with the second voltage tool, the second positive electrode tab 27 and the second negative electrode tab 28 on the second voltage tool 24 are inserted into the second positive electrode output terminal 3 and the first negative electrode output terminal 4 from the second battery pack insertion opening 301 and the third battery pack insertion opening 401, respectively.
The conversion seat 21 is located at the second voltage position, the sixth short-circuit terminal 7 is plugged with the first inner terminal 12, and the fifth short-circuit terminal 6 is plugged with the fourth inner terminal 15.
The second positive electrode insert 27 of the second voltage tool 24 is connected to the positive electrode of the second cell group 30 through the second positive electrode output terminal 3, the negative electrode of the second cell group 30 is connected to the second negative electrode output terminal 5, the second negative electrode output terminal 5 is connected to the first internal terminal 12 through the fourth internal terminal 15 through the fifth shorting terminal 6 and the sixth shorting terminal 7, the first internal terminal 12 is connected to the positive electrode of the first cell group 29 through the first positive electrode output terminal 2, the negative electrode of the first cell group 29 is connected to the first negative electrode output terminal 4, and the second negative electrode insert 28 of the second voltage tool 24 is connected to the negative electrode of the first cell group 29.
The first battery cell group 29 and the second battery cell group 30 of the battery pack 22 are output in series, the battery pack 22 outputs a second voltage, such as 36V, and the battery pack 22 has a higher discharge voltage, higher discharge power and discharge efficiency, and is more suitable for supplying power to high-power tools.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (10)
1. A dual voltage output battery pack (22), comprising: the battery pack comprises a shell (1), a battery pack connecting seat (101), a first battery cell group (29) with a positive electrode output and a negative electrode output, and a second battery cell group (30) with a positive electrode output and a negative electrode output;
further comprises:
the battery pack comprises a first positive electrode output terminal (2), a second positive electrode output terminal (3), a first negative electrode output terminal (4) and a second negative electrode output terminal (5), wherein the positive electrode output terminal and the negative electrode output terminal can be electrically connected with an inserting sheet terminal on a tool outwards through a battery pack inserting opening on a battery pack connecting seat (101), the first positive electrode output terminal (2) and the second positive electrode output terminal (3) are respectively electrically connected with the positive electrodes of a first battery cell group (29) and a second battery cell group (30), and the first negative electrode output terminal (4) and the second negative electrode output terminal (5) are respectively electrically connected with the negative electrodes of the first battery cell group (29) and the second battery cell group (30);
a first internal terminal (12) is electrically connected with the first positive electrode output terminal (2), a second internal terminal (13) is electrically connected with the second positive electrode output terminal (3), a third internal terminal (14) is electrically connected with the first negative electrode output terminal (4), and a fourth internal terminal (15) is electrically connected with the second negative electrode output terminal (5);
the conversion seat (21) is mounted on the battery pack (22), the conversion seat (21) comprises a first voltage position and a second voltage position, a first short-circuit terminal (8), a second short-circuit terminal (9), a third short-circuit terminal (10) and a fourth short-circuit terminal (11) are arranged at the first voltage position, the first short-circuit terminal (8) and the second short-circuit terminal (9) are electrically connected, the third short-circuit terminal (10) and the fourth short-circuit terminal (11) are electrically connected, a fifth short-circuit terminal (6) and a sixth short-circuit terminal (7) are arranged at the second voltage position, and the fifth short-circuit terminal (6) and the sixth short-circuit terminal (7) are electrically connected;
when the conversion seat (21) is positioned at the first voltage position, the first short-circuit terminal (8) is spliced with the first inner terminal (12), the second short-circuit terminal (9) is spliced with the second inner terminal (13), the third short-circuit terminal (10) is spliced with the third inner terminal (14), the fourth short-circuit terminal (11) is spliced with the fourth inner terminal (15), and the battery pack (22) outputs a first voltage outwards;
when the conversion seat (21) is positioned at the second voltage position, the sixth short-circuit terminal (7) is spliced with the first inner terminal (12), the fifth short-circuit terminal (6) is spliced with the fourth inner terminal (15), and the battery pack (22) outputs second voltage outwards.
2. A dual voltage output battery pack (22) as defined in claim 1 wherein: the conversion seat (21) and the battery pack (22) are movably mounted, and the conversion seat (21) can be switched between the first voltage position and the second voltage position.
3. A dual voltage output battery pack (22) as claimed in claim 1 or 2 wherein: the first voltage position and the second voltage position are positioned at symmetrical positions on the conversion seat (21), and the first voltage position and the second voltage position can be switched by rotating 180 degrees for plugging after the conversion seat (21) is pulled out.
4. A dual voltage output battery pack (22) as defined in claim 1 wherein: the battery pack locking device is characterized by further comprising a battery pack locking buckle (19) and a battery pack button (20), wherein the battery pack locking buckle (19) locks the tool and the battery pack, and the battery pack can be separated from the tool after the battery pack button (20) is pressed.
5. A dual voltage output battery pack (22) as defined in claim 1 wherein: the first positive electrode output terminal (2) and the first inner terminal (12) are made of metal conductive materials, the second positive electrode output terminal (3) and the second inner terminal (13) are made of metal conductive materials, the first negative electrode output terminal (4) and the third inner terminal (14) are made of metal conductive materials, and the second negative electrode output terminal (5) and the fourth inner terminal (15) are made of metal conductive materials.
6. A dual voltage output battery pack (22) as defined in claim 1 wherein: the first short-circuit terminal (8) and the second short-circuit terminal (9) are made of metal conductive materials, the third short-circuit terminal (10) and the fourth short-circuit terminal (11) are made of metal conductive materials, and the fifth short-circuit terminal (6) and the sixth short-circuit terminal (7) are made of metal conductive materials.
7. A dual voltage output battery pack (22) as defined in claim 1 wherein: the first positive electrode output terminal (2) and the first inner terminal (12) are electrically connected through a printed circuit board or a wire, the second positive electrode output terminal (3) and the second inner terminal (13) are electrically connected through the printed circuit board or the wire, the first negative electrode output terminal (4) and the third inner terminal (14) are electrically connected through the printed circuit board or the wire, and the second negative electrode output terminal (5) and the fourth inner terminal (15) are electrically connected through the printed circuit board or the wire.
8. A dual voltage output battery pack (22) as defined in claim 1 wherein: the first shorting terminal (8) is electrically connected with the second shorting terminal (9) through the printed circuit board or the wire, the third shorting terminal (10) is electrically connected with the fourth shorting terminal (11) through the printed circuit board or the wire, and the fifth shorting terminal (6) is electrically connected with the sixth shorting terminal (7) through the printed circuit board or the wire.
9. A dual voltage output battery pack (22) as defined in claim 1 wherein: the first battery cell group (29) and the second battery cell group (30) are respectively composed of a plurality of battery cells.
10. A dual voltage output battery pack (22) as defined in claim 1 wherein: the first battery cell group (29) and the second battery cell group (30) are respectively formed by connecting the battery cells with the same quantity, the same voltage and the same capacity in series or in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210452226.XA CN114883733B (en) | 2022-04-27 | 2022-04-27 | Dual-voltage output battery pack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210452226.XA CN114883733B (en) | 2022-04-27 | 2022-04-27 | Dual-voltage output battery pack |
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| CN114883733A CN114883733A (en) | 2022-08-09 |
| CN114883733B true CN114883733B (en) | 2023-07-07 |
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| CN114335863A (en) * | 2020-09-30 | 2022-04-12 | 南京泉峰科技有限公司 | Battery pack |
| CN114335833A (en) * | 2020-09-30 | 2022-04-12 | 南京泉峰科技有限公司 | Battery pack and electric tool adopting same |
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2022
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| CN112109047A (en) * | 2020-09-17 | 2020-12-22 | 江苏东成工具科技有限公司 | Battery pack and electric tool |
| WO2022062029A1 (en) * | 2020-09-23 | 2022-03-31 | 天佑电器（苏州）有限公司 | Battery pack, direct current tool, and direct current tool assembly |
| CN114335863A (en) * | 2020-09-30 | 2022-04-12 | 南京泉峰科技有限公司 | Battery pack |
| CN114335833A (en) * | 2020-09-30 | 2022-04-12 | 南京泉峰科技有限公司 | Battery pack and electric tool adopting same |
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| CN114883733A (en) | 2022-08-09 |
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