CN215185893U

CN215185893U - Backpack battery

Info

Publication number: CN215185893U
Application number: CN202023044709.1U
Authority: CN
Inventors: 刘强
Original assignee: Suzhou Dake Machinery Co ltd
Current assignee: Suzhou Dake Machinery Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-12-14
Anticipated expiration: 2030-12-17

Abstract

The application provides a backpack battery, which comprises a power supply, a discharge port, a first tool connecting assembly and a second tool connecting assembly, wherein the discharge port is electrically connected with the power supply; the power supply comprises a first battery and a second battery, and the discharge port comprises a first positive terminal, a first negative terminal, a second positive terminal and a second negative terminal; the first tool connecting assembly comprises a first power input port and a first tool adapter, wherein the first power input port comprises a third positive terminal, a third negative terminal, a fourth positive terminal and a fourth negative terminal; the second tool connecting assembly comprises a second power input port, a second tool adapter and a third tool adapter, wherein the second power input port comprises a fifth positive terminal, a fifth negative terminal, a sixth positive terminal and a sixth negative terminal; the discharge port is selectively coupleable with one of a first power input port of the first tool connection assembly and a second power input port of the second tool connection assembly.

Description

Backpack battery

Technical Field

The application relates to the field of power supplies, in particular to a backpack battery.

Background

Electric tools using a battery pack as a power source have been widely used, and generally, the battery pack is directly plugged into the electric tool to supply power. Taking a 20V battery pack as an example, only a 20V battery pack can be selected for power supply, the weight of some electric tools (such as garden tools) is large, and in addition, the weight of the battery pack is heavy, so that a user is easy to feel fatigue during operation, and experience is poor.

SUMMERY OF THE UTILITY MODEL

To solve at least one of the above technical problems, the present application provides a backpack battery including a plurality of batteries.

Specifically, the present application provides a backpack battery, which includes a power source, a discharge port, a first tool connection assembly, and a second tool connection assembly, wherein the discharge port is electrically connected to the power source; the power supply comprises a first battery pack and a second battery pack, and the discharge port comprises a first positive terminal electrically connected with the positive electrode of the first battery pack, a first negative terminal electrically connected with the negative electrode of the first battery pack, a second positive terminal electrically connected with the positive electrode of the second battery pack and a second negative terminal electrically connected with the negative electrode of the second battery pack; the first tool connecting assembly comprises a first power input port and a first tool adapter, the first power input port comprises a third positive terminal, a third negative terminal, a fourth positive terminal and a fourth negative terminal, the third positive terminal, the fourth positive terminal and the positive electrode of the first tool adapter are electrically connected, and the third negative terminal, the fourth negative terminal and the negative electrode of the first tool adapter are electrically connected; the second tool connecting assembly comprises a second power input port, a second tool adapter and a third tool adapter, the second power input port comprises a fifth positive terminal, a fifth negative terminal, a sixth positive terminal and a sixth negative terminal, the fifth positive terminal is electrically connected with the positive electrode of the second tool adapter, the fifth negative terminal is electrically connected with the negative electrode of the second tool adapter, the sixth positive terminal is electrically connected with the positive electrode of the third tool adapter, and the sixth negative terminal is electrically connected with the negative electrode of the third tool adapter; the first tool adapter, the second tool adapter and the third tool adapter are used for being electrically connected with tools, and the discharge port can be selectively matched and connected with one of the first power input port of the first tool connecting assembly and the second power input port of the second tool connecting assembly so as to supply power to different tools.

Furthermore, the backpack battery further comprises a charging connection assembly for charging a power supply, the charging connection assembly comprises a charging port and a charging adapter, the charging port comprises a seventh positive terminal, a seventh negative terminal, an eighth positive terminal and an eighth negative terminal, the seventh positive terminal, the eighth positive terminal and the positive electrode of the charging adapter are electrically connected, and the seventh negative terminal, the eighth negative terminal and the negative electrode of the charging adapter are electrically connected; the discharge port is configured as a charge and discharge port that is selectively coupled to one of the charge port, the first power input port, and the second power input port.

Further, the backpack battery includes a first cable electrically connected to the discharge port and the power source.

Furthermore, the discharge port, the first power input port and the second power input port are all aviation connectors.

Further, the discharge port includes a first positioning structure for guiding the first power input port and the second power input port; the first power input port includes a second locating feature that mates with the first locating feature, and the second power input port includes a third locating feature that mates with the first locating feature.

Further, the first locating structure is offset from a central axis of the discharge port.

Further, the discharge port includes a first detection terminal, the first power input port includes a second detection terminal, and the second power input port includes a third detection terminal; when the discharge port is matched and connected with the first tool connecting assembly, the first detection terminal is electrically connected with the second detection terminal; when the discharge port is electrically connected with the second tool connecting assembly, the first detection terminal is electrically connected with the third detection terminal.

Further, the first positive terminal and the first negative terminal are located on one side of the first detection terminal, and the second positive terminal and the second negative terminal are located on the other side of the first detection terminal.

Further, the discharge port includes a backup terminal.

Further, the backpack battery includes a charging adapter, the charging adapter and the first tool adapter being removably connected to the first power output port.

In the application, the plurality of batteries are arranged, so that power can be supplied to the tool of the single battery pack, and longer discharge time is provided; the power supply can also be used for supplying power to tools powered by double battery packs, so that the requirement of high power is met.

Drawings

Fig. 1 is a schematic structural view of a backpack battery according to an embodiment of the present application.

Fig. 2 is a schematic circuit diagram of the backpack battery shown in fig. 1.

Fig. 3 is a formal schematic view of the discharge port of the backpack battery shown in fig. 2.

Fig. 4 is a formal schematic diagram of the first power input port of the backpack battery shown in fig. 2.

Fig. 5 is a formal schematic diagram of a second power input port of the backpack battery shown in fig. 2.

Fig. 6 is a formal schematic view of the charging port of the backpack battery shown in fig. 2.

Fig. 7 is a schematic front view of another embodiment of a discharge port of a backpack battery.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. As used in this application, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The application provides a backpack battery, the backpack battery comprises a power supply, a discharge port, a first tool connecting assembly and a second tool connecting assembly, wherein the discharge port is electrically connected with the power supply; the power supply comprises a first battery pack and a second battery pack, and the discharge port comprises a first positive terminal electrically connected with the positive electrode of the first battery pack, a first negative terminal electrically connected with the negative electrode of the first battery pack, a second positive terminal electrically connected with the positive electrode of the second battery pack and a second negative terminal electrically connected with the negative electrode of the second battery pack; the first tool connecting assembly comprises a first power input port and a first tool adapter, the first power input port comprises a third positive terminal, a third negative terminal, a fourth positive terminal and a fourth negative terminal, the third positive terminal, the fourth positive terminal and the positive electrode of the first tool adapter are electrically connected, and the third negative terminal, the fourth negative terminal and the negative electrode of the first tool adapter are electrically connected; the second tool connecting assembly comprises a second power input port, a second tool adapter and a third tool adapter, the second power input port comprises a fifth positive terminal, a fifth negative terminal, a sixth positive terminal and a sixth negative terminal, the fifth positive terminal is electrically connected with the positive electrode of the second tool adapter, the fifth negative terminal is electrically connected with the negative electrode of the second tool adapter, the sixth positive terminal is electrically connected with the positive electrode of the third tool adapter, and the sixth negative terminal is electrically connected with the negative electrode of the third tool adapter; the discharge port is selectively coupleable with one of the first power input port of the first tool connection assembly and the second power input port of the second tool connection assembly to power different tools.

Referring to fig. 1 and 2, the backpack battery of the present embodiment includes a power source 1, a discharge port 2, a first tool connecting assembly 3, and a second tool connecting assembly 4, wherein the discharge port 2 is electrically connected to the power source 1 and selectively coupled to one of the first tool connecting assembly 3 and the second tool connecting assembly 4 to supply power to a tool. The power supply 1 is contained in the backpack, and is convenient for a user to carry.

In this embodiment, the backpack battery further includes a first cable 61, the first cable 61 is electrically connected to the discharge port 2 and the power supply 1, and when a user wears the backpack battery, the discharge port 2 can be moved forward to be connected to different tool connection assemblies without removing the backpack battery for further operation. Of course, in other embodiments, the discharge port may be directly disposed on the power supply 1 without disposing the first cable.

Referring to fig. 2 and 3, the power supply 1 includes a first battery pack 11 and a second battery pack 12, and the discharge port 2 includes a first positive terminal 21 electrically connected to a positive electrode of the first battery pack 11, a first negative terminal 22 electrically connected to a negative electrode of the first battery pack 11, a second positive terminal 23 electrically connected to a positive electrode of the second battery pack 12, and a second negative terminal 24 electrically connected to a negative electrode of the second battery pack 12.

Referring to fig. 2 and 4, the first tool connection assembly 3 includes a first power input port 31 and a first tool adapter 32, the first power input port 31 includes a third positive terminal 311, a third negative terminal 312, a fourth positive terminal 313 and a fourth negative terminal 314, the third positive terminal 311, the fourth positive terminal 313 and the positive electrode of the first tool adapter 32 are electrically connected, and the third negative terminal 312, the fourth negative terminal 314 and the negative electrode of the first tool adapter 32 are electrically connected.

Referring to fig. 2 and 5, the second tool connection assembly 4 includes a second power input port 41, a second tool adapter 42 and a third tool adapter 43, the second power input port 41 includes a fifth positive terminal 411, a fifth negative terminal 412, a sixth positive terminal 413 and a sixth negative terminal 414, the fifth positive terminal 411 is electrically connected to the positive electrode of the second tool adapter 42, the fifth negative terminal 412 is electrically connected to the negative electrode of the second tool adapter 42, the sixth positive terminal 413 is electrically connected to the positive electrode of the third tool adapter 43, and the sixth negative terminal 414 is electrically connected to the negative electrode of the third tool adapter 44.

The discharge port 2 is selectively coupleable to one of the first power input port 31 of the first tool coupling assembly 3 and the second power input port 41 of the second tool coupling assembly 4 to power different tools. The first tool adapter 32 is adapted to be connected to a tool powered by a single battery pack, such as an electric drill, an electric hammer, a jig saw, a blower, a pruner, and the like, at this time, the first battery pack 11 is connected in parallel to the second battery pack 12, and the mechanical structure of the first tool adapter 32 is similar to that of an existing battery pack (including a plurality of battery cells), and the difference is that the battery cells are disposed in the backpack. The second tool adapter 42 and the third tool adapter 43 are used to mate with a dual battery pack powered power tool, such as a power chain saw, a lawn mower, etc., where the first battery pack 11 is connected in series with the second battery pack 12.

Optionally, the discharge port, the first power input port and the second power input port are all aerial connectors, and the aerial connectors have good mechanical properties and stability, so that the reliability of electrical connection is guaranteed.

Referring to fig. 2 and 6, the backpack battery further includes a charging connection assembly 5 for charging a power source, the charging connection assembly 5 includes a charging port 51 and a charging adapter 52, the charging port 51 includes a seventh positive terminal 511 and a seventh negative terminal

512. The eighth positive terminal 513 and the eighth negative terminal 514, the seventh positive terminal 511, the eighth positive terminal 513 and the positive electrode of the charging adapter 52 are electrically connected, and the seventh negative terminal 512, the eighth negative terminal 514 and the negative electrode of the charging adapter 52 are electrically connected. The discharge port 3 is configured as a charge/discharge port selectively coupled to one of the charge port 51, the first power input port 31, and the second power input port 41. When the discharge port 3 is coupled with the charging port 51, the backpack battery can be charged through the charging connection assembly 5.

Optionally, the discharge port 2 may further include a first detection terminal 25 and a first charging protection terminal 26, where the first detection terminal 25 is used for identifying an object to be plugged, and the first charging protection terminal 26 is used for protecting the power supply 1 during charging, so as to prevent the power supply 1 from being overcharged. Correspondingly, the first power input port 31 includes a second detection terminal 315, the second power input port 41 includes a third detection terminal 415, and the charging port 51 includes a third detection terminal 515 and a second charging protection terminal 516. When the discharge port 2 is coupled to a different port, the first detection terminal 25 is electrically connected to the corresponding detection terminal, thereby identifying which port is coupled. For example, when the first detection terminal 25 is electrically connected to the second detection terminal 315, it is determined that the discharge port 2 is coupled to the first power input port 31.

The first positive terminal 21 and the first negative terminal 22 are located on one side of the first detection terminal 26, and the second positive terminal 23 and the second negative terminal 24 are located on the other side of the first detection terminal 26, so that two sets of terminals for transmitting electric energy are arranged at intervals.

Preferably, the discharge port 2 further includes a spare terminal 27, and the spare terminal 27 is a reserved terminal, and when other signals need to be transmitted, the spare terminal can be activated, thereby being beneficial to improving the expansibility of the discharge port 2. Correspondingly, the first power input port 31, the second power input port 41, and the charging port 51 also include backup terminals.

Alternatively, the circuit structures of the first battery pack 11 and the second battery pack 12 are similar to those of the conventional battery pack. For example, when supplying power to the single-cell pack tool, the high-voltage batteries in the first battery pack 11 and the second battery pack 12 are preferentially discharged and supplied together until the voltages of the two batteries are equal; when the first battery pack 11 and the second battery pack 12 are charged, the low-voltage battery is charged preferentially, and the low-voltage battery are charged simultaneously after the voltages of the two batteries are consistent.

As can be seen from fig. 2, the structures and internal circuits of the first charging port 31 and the charging port 51 are completely identical, so that the second tool connection assembly 4 and the charging connection assembly 5 can share one port. Preferably, the charging adapter 52 and the first tool adapter 32 are detachably connected to the first power input port 31, and the first power input port 31 doubles as a charging port, thereby facilitating a reduction in cost of the backpack battery.

Referring to fig. 7, in another embodiment, the discharge port 2 includes a first positioning structure 28, and the first positioning structure 28 is used for guiding the first power input port 31, the second power input port 41 and the charging port 41. The first power input port 31 includes a second locating feature (not shown) that mates with the first locating feature 28, the second power input port 31 includes a third locating feature (not shown) that mates with the first locating feature 28, and the charging port includes a fourth locating feature (not shown) that mates with the first locating feature 28. Optionally, the first positioning structure 28 is a guiding post or a guiding hole, and correspondingly, the second, third and fourth positioning structures are guiding holes or guiding posts.

Since the discharge port includes a plurality of terminals, there is a possibility of erroneous insertion, and the terminals are easily damaged while the electrical connection is not achieved. Preferably, the first positioning structure 28 is offset from the central axis of the discharge port 2, thereby achieving fool-proofing.

Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being covered by the following claims.

Claims

1. A backpack battery is characterized by comprising a power supply, a discharge port, a first tool connecting assembly and a second tool connecting assembly, wherein the discharge port is electrically connected with the power supply;

the power supply comprises a first battery pack and a second battery pack, and the discharge port comprises a first positive terminal electrically connected with the positive electrode of the first battery pack, a first negative terminal electrically connected with the negative electrode of the first battery pack, a second positive terminal electrically connected with the positive electrode of the second battery pack and a second negative terminal electrically connected with the negative electrode of the second battery pack;

the first tool connecting assembly comprises a first power input port and a first tool adapter, the first power input port comprises a third positive terminal, a third negative terminal, a fourth positive terminal and a fourth negative terminal, the third positive terminal, the fourth positive terminal and the positive electrode of the first tool adapter are electrically connected, and the third negative terminal, the fourth negative terminal and the negative electrode of the first tool adapter are electrically connected;

the second tool connecting assembly comprises a second power input port, a second tool adapter and a third tool adapter, the second power input port comprises a fifth positive terminal, a fifth negative terminal, a sixth positive terminal and a sixth negative terminal, the fifth positive terminal is electrically connected with the positive electrode of the second tool adapter, the fifth negative terminal is electrically connected with the negative electrode of the second tool adapter, the sixth positive terminal is electrically connected with the positive electrode of the third tool adapter, and the sixth negative terminal is electrically connected with the negative electrode of the third tool adapter;

the first tool adapter, the second tool adapter and the third tool adapter are used for being electrically connected with tools, and the discharge port can be selectively matched and connected with one of the first power input port of the first tool connecting assembly and the second power input port of the second tool connecting assembly so as to supply power to different tools.

2. The backpack battery according to claim 1, further comprising a charging connection assembly for charging a power source, wherein the charging connection assembly comprises a charging port and a charging adapter, the charging port comprises a seventh positive terminal, a seventh negative terminal, an eighth positive terminal and an eighth negative terminal, the seventh positive terminal, the eighth positive terminal and the positive terminal of the charging adapter are electrically connected, and the seventh negative terminal, the eighth negative terminal and the negative terminal of the charging adapter are electrically connected;

the discharge port is configured as a charge and discharge port that is selectively coupled to one of the charge port, the first power input port, and the second power input port.

3. The backpack battery according to claim 1, wherein the backpack battery comprises a first cable electrically connecting the discharge port and the power source.

4. The backpack battery of claim 1, wherein the discharge port, first power input port, and second power input port are all aerial connectors.

5. The backpack battery of claim 4, wherein the discharge port includes a first positioning structure for directing the first and second power input ports;

the first power input port includes a second locating feature that mates with the first locating feature, and the second power input port includes a third locating feature that mates with the first locating feature.

6. The backpack battery according to claim 5, wherein the first locating feature is offset from a central axis of the discharge port.

7. The backpack battery of claim 1, wherein the discharge port comprises a first detection terminal, the first power input port comprises a second detection terminal, and the second power input port comprises a third detection terminal;

when the discharge port is matched and connected with the first tool connecting assembly, the first detection terminal is electrically connected with the second detection terminal; when the discharge port is electrically connected with the second tool connecting assembly, the first detection terminal is electrically connected with the third detection terminal.

8. The backpack battery according to claim 7, wherein the first positive terminal and the first negative terminal are located on one side of the first detection terminal, and the second positive terminal and the second negative terminal are located on the other side of the first detection terminal.

9. The backpack battery of claim 7, wherein the discharge port includes a backup terminal.

10. The backpack battery according to claim 1, wherein the backpack battery includes a charging adapter, the charging adapter and the first tool adapter being removably connected to the first power output port.