CN220692848U

CN220692848U - Electric energy storage system convenient to distribution

Info

Publication number: CN220692848U
Application number: CN202321711406.1U
Authority: CN
Inventors: 李斌; 骆建松; 王波涛
Original assignee: Zhejiang Lera New Energy Power Technology Co Ltd
Current assignee: Zhejiang Lera New Energy Power Technology Co Ltd
Priority date: 2023-05-23
Filing date: 2023-06-30
Publication date: 2024-03-29
Anticipated expiration: 2033-06-30

Abstract

The utility model belongs to the technical field of energy storage, and particularly relates to an electric energy storage system convenient for power distribution. The portable battery pack solves the technical problems that the number of battery packs carried each time is large, the utilization efficiency of the battery packs is low, and the like. The electric energy storage system convenient for distribution comprises a main power supply device, wherein a main battery core for providing initial voltage is arranged in the main power supply device, and the main power supply device comprises a first battery pack and a second battery pack which have different output voltages; the charging device I is detachably and electrically connected with the battery pack I; the charging device II is detachably and electrically connected with the battery pack II; the charging device I and the charging device II are detachably and electrically connected to the main power supply device; the electric energy storage system convenient for distribution further comprises a transformation device for converting the initial voltage into a first output voltage to a charging device I; the transformation device converts the initial voltage into a second output voltage to the charging device II. The utility model ensures the operation of the electric tool with a plurality of voltage platforms in outdoor operation.

Description

Electric energy storage system convenient to distribution

Technical Field

The utility model belongs to the technical field of energy storage, and particularly relates to an electric energy storage system convenient for power distribution.

Background

During the energy conversion process, the fuel-driven tools are gradually replaced by electrically-driven tools. In outdoor or no mains environment, electrically powered tools require battery packs to power them, and for professional users it is often necessary to use the power tool for a long period of time, in which case more battery packs can only be carried to cope with the long-term work demand for electrical energy. However, in general, when a professional user works, different tools are used, the used battery pack voltage platforms of the tools may be different, and a single battery pack cannot meet the energy supply of a plurality of electric tools, so that the user needs to carry battery packs of different voltage platforms, and the use time of the different electric tools cannot be estimated, so that in order to smoothly advance the work, the battery packs of each different voltage platform need to carry a plurality of blocks to ensure the smooth advance of the work, and therefore, the number of battery packs carried each time is more, and the utilization efficiency of the battery packs is not high.

Disclosure of Invention

The utility model aims at the problems existing in the prior art, and provides an electric energy storage system convenient for distribution, which aims at solving the technical problems that: how to ensure the operation of a power tool with multiple voltage platforms in outdoor operation.

The aim of the utility model can be achieved by the following technical scheme:

the electric energy storage system convenient for distribution is characterized by comprising a main power supply device, wherein a main battery core for providing initial voltage is arranged in the main power supply device, and the electric energy storage system convenient for distribution comprises a first battery pack and a second battery pack, wherein the first battery pack and the second battery pack have different output voltages;

the charging device I is provided with an electric connection interface III, and the battery pack I is detachably and electrically connected with the electric connection interface III;

the charging device II is provided with an electric connection interface IV, and the battery pack II is detachably and electrically connected with the electric connection interface IV;

the charging device I and the charging device II are detachably and electrically connected to the main power supply device;

the electric energy storage system convenient for distribution further comprises a transformation device, when the charging device I is arranged on the main power supply device, the transformation device converts the initial voltage into a first output voltage and outputs the first output voltage to the charging device I for supplying power to the pair of battery packs I; when the second charging device is arranged on the power supply device, the voltage transformation device converts the initial voltage into a second output voltage and outputs the second output voltage to the second charging device to supply power to the second battery pack.

In the above electric energy storage system convenient for distribution, the main power supply device is provided with a first distribution interface electrically connected with the main battery core, the first distribution interface comprises a first positive contact, a second positive contact and a negative contact, the first positive contact outputs a first output voltage, and the second positive contact outputs a second output voltage;

when the charging device I is arranged on the main power supply device, the positive contact I and the negative contact I are electrically connected with the charging device I; when the charging device II is configured on the main power supply device, the positive electrode contact II and the negative electrode contact II are electrically connected with the charging device II.

In the above electric energy storage system for facilitating distribution, the voltage transformation device includes a first voltage step-down module and a second voltage step-down module in the main power supply device;

the first voltage reducing module is electrically connected with the first positive electrode contact and used for converting initial voltage into first output voltage, and the second voltage reducing module is electrically connected with the second positive electrode contact and used for converting the initial voltage into second output voltage.

In the above electric energy storage system convenient for distribution, the first power distribution interface further comprises a communication contact, a main control module is further arranged in the main power supply device, the communication contact, the first voltage reduction module and the second voltage reduction module are all electrically connected with the main control module, the communication contact obtains information of the first charging device or the second charging device and transmits the information to the main control module, and the main control module controls the main battery cell to be output outwards through the first voltage reduction module or the second voltage reduction module.

In the electric energy storage system convenient for power distribution, the main power supply device is provided with a first power distribution interface electrically connected with the main battery core, and the first power distribution interface comprises a second positive contact and a second negative contact;

the voltage transformation device comprises a voltage reduction module II positioned in the main power supply device, and the positive contact II outputs a second output voltage through the voltage reduction module II; when the charging device II is placed on the main power supply device, the charging device II is electrically connected with the power distribution interface I, and a second output voltage is obtained to the battery pack II;

the voltage transformation device comprises a voltage reduction module I positioned in a charging device I, when the charging device I is placed on a main power supply device, the charging device I receives second output voltage output by a power distribution interface I, and the voltage reduction module I outputs first output voltage to a pair of battery packs I.

In the above electric energy storage system facilitating distribution, the main power supply device is provided with a first distribution interface electrically connected with the main battery core, and the first distribution interface comprises a first positive contact and a second negative contact;

the voltage transformation device comprises a first voltage reduction module positioned in the main power supply device, and the first positive contact outputs a first output voltage through the first voltage reduction module; when the charging device I is arranged on the main power supply device, the charging device I is electrically connected with the power distribution interface I, and a first output voltage is obtained to the battery pack I;

the voltage transformation device comprises a first voltage boosting module positioned in a second charging device, the first voltage boosting module converts the first output voltage into a second voltage, and when the second charging device is placed on the main power supply device, the second charging device receives the first output voltage output by the first power distribution interface and outputs the second output voltage to a second battery pack through the second voltage boosting module.

the main power supply device is provided with a containing cavity III, and the battery pack I is detachably and electrically connected in the containing cavity III;

the second charging device is provided with a fourth electric connection interface, the second battery pack is detachably and electrically connected with the fourth electric connection interface, and the second charging device is detachably connected to the power supply device;

the electric energy storage system convenient for distribution further comprises a voltage transformation device, and when the first battery pack is positioned in the accommodating cavity III, the voltage transformation device converts the initial voltage into a first output voltage and outputs the first output voltage to the first battery pack; when the second charging device is electrically connected to the main power device, the voltage transformation device converts the initial voltage into a second output voltage and outputs the second output voltage to the second charging device.

In the above electric energy storage system for facilitating distribution, the voltage transformation device includes a first voltage reduction module and a second voltage reduction module, which are located in the main power supply device, wherein the first voltage reduction module is used for converting an initial voltage into a first output voltage, and the second voltage reduction module is used for converting the initial voltage into a second output voltage;

the electric connection interface III is electrically connected with the first voltage reduction module and is positioned in the accommodating cavity III, and when the first battery pack is positioned in the accommodating cavity III, the electric connection interface III outputs a first output voltage to the first battery pack;

the first power distribution interface is electrically connected with the main battery cell and is positioned on the main power supply device, the first power distribution interface comprises a second positive contact and a second negative contact, the second positive contact is electrically connected with the second voltage reduction module to output a second output voltage, and when the second charging device is configured on the main power supply device, the second positive contact and the second negative contact are electrically connected with the second charging device.

Compared with the prior art, the utility model has the following advantages:

1. the first battery pack and the second battery pack can acquire power through the main power supply device, and in the outdoor use process, a user can reduce the carrying quantity of the first battery pack and the second battery pack, and supplement power from the main power supply device according to actual use conditions so as to ensure the work of the electric tools with a plurality of voltage platforms.

2. The battery pack III carried by the main power supply device can be used as a power supply for supplying power to the battery pack I and the battery pack II when the user has smaller requirements on the electric tool where the battery pack III is located.

Drawings

Fig. 1 is a schematic view showing a use state structure of a main power supply device serving as a device one.

Fig. 2 is a schematic view of a use state structure of a device serving as a second device placed on a main power supply device.

Fig. 3 is a schematic view showing a usage state structure in which the main power device is connected to the third battery pack and the charging device one and the charging device two are interchangeable.

Fig. 4 is a schematic perspective view of the main power supply device.

Fig. 5 is a schematic perspective view of a first charging device.

Fig. 6 is a schematic perspective view of a second charging device.

Fig. 7 is a schematic diagram of a battery pack one, a battery pack two, a main power supply device, a tool set one, and a tool set two.

Fig. 8 is a schematic set of the present electrical energy storage system for facilitating distribution of electrical energy.

Fig. 9 is a schematic diagram of a power supply structure in the first embodiment.

Fig. 10 is a schematic diagram of a power supply structure in the second embodiment.

Fig. 11 is a schematic diagram of a power supply structure in the third embodiment.

Fig. 12 is a schematic diagram of a power supply structure in the fourth embodiment.

Fig. 13 is a schematic diagram of a power supply structure in the fifth embodiment.

Fig. 14 is a schematic diagram of a power supply structure in the sixth embodiment.

Fig. 15 is a schematic diagram of another power supply structure in the sixth embodiment.

Fig. 16 is a schematic diagram of a power supply structure in an eighth embodiment.

Fig. 17 is a schematic view showing a structure of a main power device electrically connected to a second battery pack and an interchangeable use state of a first charging device and a second charging device.

In the figure, 1, a main power supply device; 1a, a shell; 1b, a main battery cell; 1c, a circuit board; 1d, a containing cavity III; 1d1, an electric connection interface III; 1e, a first power distribution interface; 1f, an electric connection interface six; 1g, a containing cavity five; 1f, a containing cavity IV;

2. a first battery pack; 2a, an electric connection interface I;

3. a second battery pack; 3a, an electric connection interface II;

4. a third battery pack; 4a, an electric connection interface five;

5. a first tool kit; 6. a second tool kit; 7. a tool kit III;

9. a first charging device; 9a, a first accommodating cavity;

10. a second charging device; 10a, a second accommodating cavity; 10b, an electric connection interface IV;

11. a second power distribution interface; 12. a first positive electrode contact; 13. a second positive electrode contact; 14. a communication contact; 15. a negative contact; 16. and a positive electrode contact III.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1 to 3, the electric energy storage system for facilitating distribution includes a main power supply device 1, a charging device one 9, a charging device two 10, a battery pack one 2, a battery pack two 3 and a battery pack three 4.

As shown in fig. 4, the main power supply device 1 includes a housing 1a, a main battery cell 1b and a circuit board 1c are provided in the housing 1a, and the main battery cell 1b is used for storing electric energy and outputting an initial voltage; the voltage transformation device comprises a first voltage reduction module and a second voltage reduction module, the first voltage reduction module enables the main power supply device 1 to output a first output voltage outwards, and the second voltage reduction module enables the main power supply device 1 to output a second output voltage outwards; the shell 1a is also provided with a power distribution interface 1e for outputting power outwards.

As shown in fig. 5, the charging device 1 9 is provided with a receiving cavity 9a for receiving the battery pack 1, an electrical connection interface three 1d1 electrically connected with the battery pack 2 is arranged in the receiving cavity 9a, and when the battery pack is inserted into the receiving cavity 9a, the battery pack 2 is electrically connected with the electrical connection interface three 1d 1. And a second power distribution interface 11 is further arranged on the outer surface of the first charging device 9, the second power distribution interface 11 is used for being matched with the first power distribution interface 1e on the main power supply device 1, and when the first charging device 9 is placed on the main power supply device 1, the first power distribution interface 1e is matched with the second power distribution interface 11, and the first charging device 9 obtains electric energy of the main power supply device 1 to the first battery pack 2.

As shown in fig. 6, the charging device two 10 is provided with a receiving cavity two 10a for receiving the battery pack two 3, an electrical connection interface four 10b electrically connected with the battery pack two 3 is arranged in the receiving cavity two 10a, and when the battery pack is inserted into the receiving cavity two 10a, the battery pack two 3 is electrically connected with the electrical connection interface three 1d 1. And a second power distribution interface 11 is further arranged on the outer surface of the second charging device 10, the second power distribution interface 11 is used for being matched with the first power distribution interface 1e on the main power supply device 1, when the second charging device 10 is placed on the main power supply device 1, the first power distribution interface 1e is matched with the second power distribution interface 11, and the second charging device 10 obtains electric energy of the main power supply device 1 to the second battery pack 3.

As shown in fig. 8, the first battery pack 2 has an electrical connection interface 2a, the second battery pack 3 has an electrical connection interface 3a, and the third battery pack 4 has an electrical connection interface five 4a. The voltage platforms of the battery pack I2, the battery pack II 3 and the battery pack III 4 are different, so as to adapt to the electric tools with different voltage platforms. Wherein, the first battery pack 2 is adapted to the first tool set 5, the second battery pack 3 is adapted to the second tool set 6, and the third battery pack 4 is adapted to the third tool set 7.

Example 1

As shown in fig. 1, the electric energy storage system convenient for distribution comprises a main power supply device 1, wherein the main power supply device 1 comprises a shell 1a, a main electric core 1b for providing initial voltage is arranged in the shell 1a, and the main electric core 1b can be fixedly arranged in the shell 1a or detachably connected in the shell 1 a. The arrangement form of the main cell 1b is selected according to the actual situation.

As shown in fig. 3, 6 and 9, a circuit board 1c is disposed in the main power supply device 1, and a first voltage reducing module and a second voltage reducing module in the voltage transformation device in this embodiment are both disposed on the circuit board 1c, and a main control module is further disposed on the circuit board 1 c. The shell 1a is provided with a first power distribution interface 1e, and the first power distribution interface comprises a first positive contact 12, a second positive contact 13 and a negative contact 15. The input end of the first voltage reduction module is electrically connected with the main battery cell 1b, and the output end of the first voltage reduction module is electrically connected with the first positive electrode contact 12; the input end of the step-down module II is electrically connected with the main battery cell 1b, and the output end of the step-down module II is electrically connected with the first positive electrode contact 12. The first positive contact 12 and the second positive contact 13 realize the output of two different voltages through the first voltage dropping module and the second voltage dropping module. Further, the first power distribution interface 1e further includes a communication contact 14, where the communication contact 14 is electrically connected to the main control module, and the communication contact 14 is used for communicating with the outside, identifying the first charging device 9 and the second charging device 10, acquiring the electric quantity information of the first battery pack 2 in the first charging device 9 and the second battery pack 3 in the second charging device 10, and transmitting the acquired information to the main control module.

As shown in fig. 5, 6 and 7, the first charging device 9 is provided with two or more accommodating cavities 9a, each accommodating cavity 9a is internally provided with an electric connection interface three 1d1, and when the first battery pack 2 is placed in the accommodating cavity 9a, the first battery pack 2 is electrically connected with the first charging device 9 through the electric connection interfaces three 1d 1; the second charging device 10 is provided with two accommodating cavities 10a, and the number of the accommodating cavities 10a is two or more; and an electric connection interface IV 10b is arranged in each accommodating cavity II 10a, and when the battery pack II 3 is placed in the accommodating cavity II 10a, the battery pack II 3 is electrically connected with the charging device II 10 through the electric connection interface IV 10 b. Further, the first battery pack 2 is provided with an electric connection interface 1a, and when the first battery pack 2 is inserted into the accommodating cavity 9a, the electric connection interface 2a is electrically connected with the electric connection interface three 1d 1; the second battery pack 3 is provided with a second electric connection interface 3a, and when the second battery pack 3 is inserted into the second accommodating cavity 10a, the second electric connection interface 3a is electrically connected with the fourth electric connection interface 10 b.

As shown in fig. 6 and 9, the charging device one 9 and the charging device two 10 are provided with a second power distribution interface 11 for electrically connecting with the power distribution interface, and in this embodiment, the second power distribution interface 11 has the same positive contact one 12, the positive contact two 13, the positive contact three 16 and the communication contact 14 as those on the first power distribution interface 1e. When any one of the charging device I9 and the charging device II 10 is placed on the main power supply device 1, the first power distribution interface 1e and each contact on the second power distribution interface 11 are in one-to-one correspondence contact, so that the electrical connection between the charging device I9 or the charging device and the main power supply device 1 is realized.

As shown in fig. 9, when the communication contact 14 does not receive information, both the positive contact one 12 and the positive contact two 13 on the main power supply device 1 are in a non-energized state. When the charging device I9 is placed on the main power supply device 1, the communication contact 14 on the main power supply device 1 is electrically connected and communicated with the communication contact 14 on the charging device I9, the main control module obtains a circuit which is configured on the main power supply device 1 and is used for connecting the voltage reducing module I and the main battery core 1b, so that the positive electrode contact I12 outputs a first output voltage to the charging device I9, and the positive electrode contact II 13 is in a non-energized state; when the second charging device 10 is placed on the main power device 1, the communication contact 14 on the main power device 1 is electrically connected to and communicates with the communication contact 14 on the second charging device 10, and the main control module obtains a circuit configured on the main power device 1 and between the second charging device 10, i.e. the connection step-down module and the main battery core 1b, so that the second positive electrode contact 13 outputs a second output voltage to the second charging device 10, and the first positive electrode contact 12 is in a non-energized state.

As shown in fig. 8, in this embodiment, two different voltages are output through two different contacts on the first power distribution interface 1e, and the communication contact 14 and the main control module implement power supply selection of the two different contacts so as to adapt the first charging device 9 and the second charging device 10 to output corresponding voltages. When the electric tool driven by the battery pack works, the electric energy storage system convenient for power distribution can meet the requirement of the electric tools with two different voltage platforms for use, and can be used for carrying a small number of battery packs, so that the electric tool can be used for a long time.

Specifically, as shown in fig. 7, the tool set one 5 is powered by the battery pack one 2, when the battery pack one 2 being powered is exhausted, the battery pack one 2 is detached and placed in the charging device one 9, the charging device one 9 is placed on the main power supply device 1 to charge the battery pack one 2, and the other battery pack one 2 or the battery pack one 2 carried in the other battery pack one 9 is taken out from the charging device one 9 to power the electric tool, so that the electric tool is reciprocated, long-time use of the electric tool is realized through cooperation of the main power supply device 1 and the charging device one 9, and the number carried by the battery pack one 2 is reduced; the second tool kit 6 supplies power through the second battery pack 3, when the electric quantity of the second battery pack 3 which is being supplied is exhausted, the second battery pack is detached and placed in the second charging device 10, the second charging device 10 is placed on the main power supply device 1 to charge the second battery pack 3, and the second battery pack 10 is taken out of the second charging device 10 or the second battery pack 3 which is carried in addition supplies power to the electric tool, so that the second tool kit 6 is used for a long time through the cooperation of the main power supply device 1 and the second charging device 10, and the number of the second battery pack 3 carried by the electric tool is reduced; because the first battery pack 2 and the second battery pack 3 acquire electric energy again through the main power supply device 1 when the electric quantity is exhausted, the carrying quantity of the first battery pack 2 and the second battery pack 3 can be reduced in single trip or work, and in the working process, power sources are distributed through the main power supply device 1 according to the service conditions of the first practical tool suite 5 and the second practical tool suite 6 so as to meet the use requirements of the first tool suite 5 and the second tool suite 6 and improve the utilization efficiency of the battery packs.

Example two

The present embodiment is substantially the same as the above embodiment, except that, as shown in fig. 10, a second power distribution interface 11 of a first charging device 9 in the present embodiment has a first positive contact 12, a second negative contact 15, and a communication contact 14; the second power distribution interface 11 of the second charging device 10 has a second positive contact 13, a second negative contact 15, and a communication contact 14. In this embodiment, the main control module does not acquire information of the charging device one 9 or the charging device two 10 connected to the main power supply device 1 through the communication contact 14 on the main power supply device 1. By not arranging the positive electrode contact II 13 on the charging device I9 and not arranging the positive electrode contact I12 on the charging device II 10, the charging device I9 can only acquire electric energy from the positive electrode contact I12, and the charging device II 10 can only acquire electric energy from the positive electrode contact II 13.

Example III

The present embodiment is substantially the same as the first embodiment, except that in the present embodiment, as shown in fig. 3, 4 and 11, the first power distribution interface 1e and the second power distribution interface 11 are each provided with a third positive contact 16, a third negative contact 15 and a communication contact 14. In this embodiment, the output ends of the first voltage reducing module and the second voltage reducing module are both connected to the third positive contact 16, and only after the communication contact 14 obtains the connection information, the first voltage reducing module or the second voltage reducing module can be energized alternatively.

Further, when the first charging device 9 is placed on the main power supply device 1, the communication contact 14 receives information of the first charging device 9 and transmits the information to the main control module, and the main control module controls a circuit communicated between the main battery cell 1b and the first voltage reducing module, and the first voltage reducing module outputs a first output voltage to the first battery pack 2 in the first charging device 9; when the second charging device 10 is placed on the main power supply device 1, the communication contact 14 receives the information of the second charging device 10 and transmits the information to the main control module, and the main control module controls a circuit communicated between the main battery cell 1b and the second voltage reducing module, and the second voltage reducing module outputs a second output voltage to the second battery pack 3 in the second charging device 10.

Or when the first charging device 9 is placed on the main power supply device 1, the communication contact 14 receives information of the first charging device 9 and transmits the information to the main control module, and the main control module controls a circuit communicated between the first voltage reducing module and the third positive electrode contact 16, and the first voltage reducing module outputs a first output voltage to the first battery pack 2 in the first charging device 9; when the charging device II 10 is placed on the main power supply device 1, the communication contact 14 receives information of the charging device II 10 and transmits the information to the main control module, and the main control module controls a circuit communicated between the voltage reducing module II and the positive electrode contact III 16, and the voltage reducing module II outputs a second output voltage to the battery pack II 3 in the charging device II 10.

Example IV

The difference between this embodiment and the third embodiment is that, as shown in fig. 12, the first voltage step-down module and the second voltage step-down module of the voltage transformation device of this embodiment are located in the first charging device 9 and the main power supply device 1, respectively. In this embodiment, the first output voltage of the first voltage step-down module is smaller than the second output voltage of the second voltage step-down module.

As shown in fig. 3 and 12, the main power supply device 1 is provided with a first power distribution interface 1e, wherein the first power distribution interface 1e comprises a second positive contact 13 and a second negative contact 15, and the second positive contact 13 is electrically connected with the output end of the second voltage reducing module; the charging device I9 and the charging device II 10 are respectively provided with a power distribution interface II 11, the power distribution interface II 11 is provided with a positive electrode contact II 13 and a negative electrode contact 15, and when the charging device I9 and the charging device II 10 are placed on the main power supply device 1, the main power supply device 1 outputs a second output voltage only through the power distribution interface I1 e.

When the second charging device 10 is placed on the main power supply device 1, the second output voltage output by the main power supply device 1 is matched with the voltage required by the second charging device 10, so that the second battery pack 3 in the second charging device 10 can be directly charged; when the charging device one 9 is placed on the main power device 1, the main power device 1 outputs a second output voltage to the charging device one 9, and the voltage reducing module one in the charging device one 9 reduces the second output voltage to a first output voltage and transmits the first output voltage to the battery pack one 2 in the charging device one 9.

The two voltage reduction modules of the voltage transformation device are respectively arranged in the main power supply device 1 and the charging device I9, so that the electric energy storage system convenient for distribution can supply power to the battery pack I2 and the battery pack II 3 of two different voltage platforms.

Preferably, in this embodiment, the first power distribution interface 1e and the second power distribution interface 11 further include a communication contact 14, where the communication contact 14 is used to obtain the electric quantity information of the first battery pack 2 in the first charging device 9 and the second battery pack 3 in the second charging device 10.

Example five

The present embodiment is substantially the same as the fourth embodiment, and as shown in fig. 13, the voltage transforming device in the present embodiment includes a first voltage reducing module and a first voltage boosting module, wherein the first voltage reducing module is located on the circuit board 1c of the main power device 1, and the first voltage boosting module is located in the second charging device 10. The voltage output by the first voltage-reducing module is a first output voltage which is suitable for the first battery pack 2, and the voltage output by the first voltage-increasing module is a second output voltage which is suitable for the second battery pack 3. The first output voltage of the first output of the step-down module is smaller than the second output voltage of the first output of the step-up module.

As shown in fig. 3, the main power supply device 1 is provided with a first power distribution interface 1e, wherein the first power distribution interface 1e comprises a first positive contact 12 and a second negative contact 15, and the first positive contact 12 is electrically connected with the output end of the first voltage dropping module; the charging device I9 and the charging device II 10 are respectively provided with a power distribution interface II 11, the power distribution interface II 11 is provided with a positive contact I12 and a negative contact 15, and when the charging device I9 and the charging device II 10 are placed on the main power supply device 1, the main power supply device 1 outputs a first output voltage only through the power distribution interface I1 e.

When the first charging device 9 is placed on the main power supply device 1, the first output voltage output by the main power supply device 1 is matched with the voltage required by the first charging device 9, so that the first battery pack 2 in the first charging device 9 can be directly charged; when the second charging device 10 is placed on the first main power device 1, the first main power device 1 outputs a first output voltage to the second charging device 10, and the first boosting module in the second charging device 10 converts the first output voltage into a second output voltage and transmits the second output voltage to the second battery pack 3 in the second charging device 10.

The first step-down module and the first step-up module of the voltage transformation device are respectively arranged in the main power supply device 1 and the first charging device 9, so that the electric energy storage system convenient for distribution can supply power to the first battery pack 2 and the second battery pack 3 of two different voltage platforms.

Example six

In this embodiment, as shown in fig. 2 and 14, a housing cavity three 1d is formed in the main power supply device 1, an electrical connection interface three 1d1 is disposed in the housing cavity three 1d, and a battery pack one 2 is detachably connected in the housing cavity three 1d, and when the battery pack three 4 is located in the housing cavity three 1d, the battery pack one 2 is electrically connected with the main power supply device 1 through the electrical connection interface three 1d 1.

One or two voltage reducing modules I are provided in the main power supply device 1. As shown in fig. 14, when one voltage reducing module is provided, the output end of the voltage reducing module is electrically connected with the positive electrode contact 12 and the electric connection interface three 1d1 in the accommodating cavity three 1d respectively, and the power supply requirement of the battery pack 2 configured on the main power supply device 1 and the battery pack 2 configured on the charging device 9 is met through the voltage reducing module.

As shown in fig. 14, when two voltage reducing modules are provided, the output end of one voltage reducing module is electrically connected with the first positive electrode contact 12, and the output end of the other voltage reducing module is electrically connected with the third electrical connection interface 1d1 in the third accommodating cavity 1d, so as to realize the power supply requirement of the first battery pack 2 configured on the main power supply device 1 and the first battery pack 2 configured on the first charging device 9. Compared with the single step-down module I, the power supply voltage in the charging device I9 and the accommodating cavity III 1d of the pair of two step-down modules is more stable.

The foregoing description is only an example of the embodiment, and those skilled in the art may combine the technical solution of the embodiment with other embodiments.

Example seven

In this embodiment, as shown in fig. 17, a housing cavity four 1f is formed in the main power device 1, and a second battery pack 3 is detachably and electrically connected to the housing cavity four 1 f. Further, an electric connection interface IV 10b is arranged in the accommodating cavity IV 1f, and the input ends of the electric connection interface IV 10b and the positive contact III 16 are electrically connected with the output end of the voltage reduction module II.

When the second battery pack 3 is inserted into the accommodating cavity IV 1f and is electrically connected with the electric connection interface IV 10b, the main power supply device 1 supplies power to the second battery pack 3 through the electric connection interface IV 10b to output a second output voltage; when the second charging device 10 is placed on the main power supply device 1, the main power supply device 1 supplies energy to the second charging device 10 through the third positive contact 16.

Similarly, in this embodiment, two voltage reducing modules may be disposed in the main power device 1, where an output end of one voltage reducing module is electrically connected to the fourth electrical connection interface 10b, and an output end of the other voltage reducing module is electrically connected to the third positive contact 16.

Example eight

In this embodiment, as shown in fig. 3, 4 and 8, the main power supply device 1 is further provided with a containing cavity five 1g, and an electrical connection interface six 1f for electrically connecting with the battery pack three 4 is arranged in the containing cavity five 1 g;

as shown in fig. 16, the voltage transformation device includes a voltage reduction module three located in the main power supply device 1, the voltage reduction module three is electrically connected with the main control module, the output end of the voltage reduction module three is electrically connected with an electrical connection interface six 1f, when the battery pack three 4 is located in the accommodating cavity five 1g, the electrical connection interface six 1f is electrically connected with an electrical connection interface five 4a of the battery pack three 4, and the main control module controls the connection of circuits among the main battery core 1b, the voltage reduction module three and the electrical connection interface six 1f, and outputs a third output voltage to the battery pack three 4.

As shown in fig. 16, after the electrical connection interface six 1f and the electrical connection interface five 4a form an electrical connection, the main control module can obtain the electric quantity information of the battery pack three 4, and when the electric quantity of the main battery core 1b is insufficient, the main control module controls the electric energy of the battery pack three 4 to be transmitted to the power distribution interface 1e through the voltage reduction module one or the voltage reduction module two to provide the electric energy for the charging device one 9 and the charging device two 10.

As shown in fig. 8, in the present embodiment, the sum of the battery capacities of the battery pack one 2 and the battery pack two 3 is smaller than the battery capacity of the battery pack three 4. The voltage platform corresponding to the battery pack III 4 is different from the voltage platforms of the battery pack I2 and the battery pack II 3, the power supplied electric tools are also different, and the battery pack III 4 supplies power to the electric tools of the tool kit III 7. In the process of going out, the tool kit III 7 has fewer use scenes, and when the battery pack III 4 has more electric quantity reserves, electric energy can be distributed to the battery pack I2 or the battery pack II 3 again, so that electric quantity distribution in an actual scene can be further realized.

Example nine

In this embodiment, as shown in fig. 2 and 7, an electric energy storage system for facilitating distribution includes a main power supply device 1, a main cell 1b for providing an initial voltage is provided in the main power supply device 1, and the electric energy storage system for facilitating distribution includes a first battery pack 2 and a second battery pack 3 with different output voltages;

the main power supply device 1 is provided with a containing cavity I9 a, and the battery pack I2 is detachably and electrically connected in the containing cavity I9 a. Further, an electrical connection interface three 1d1 is disposed in the accommodating cavity one 9a of the main power device 1, and when the battery pack one 2 is inserted into the accommodating cavity one 9a, the battery pack one 2 is electrically connected with the main power device 1 through the electrical connection interface three 1d 1. The main power supply device 1 is internally provided with a first voltage reduction module, the input end of the first voltage reduction module is electrically connected with the main battery cell 1b, the output end of the first voltage reduction module is electrically connected with the electric connection interface three 1d1, and the main power supply device 1 outputs a first output voltage to the first battery pack 2 to supply power to the first battery pack 2.

And the second charging device 10 is provided with a second accommodating cavity 10a, and the second accommodating cavity 10a is detachably and electrically connected with a second battery pack 3. Further, an electrical connection interface IV 10b is arranged in the accommodating cavity II 10a, and when the battery pack II 3 is inserted into the accommodating cavity II 10a, the battery pack II 3 is electrically connected with the charging device II 10 through the electrical connection interface IV 10 b. The first power supply device 1 is provided with a first power distribution interface 1e, the second charging device 10 is provided with a second power distribution interface 11, and in this embodiment, the first power distribution interface 1e can only output a second output voltage to adapt to the second charging device 10.

In this embodiment, the battery packs of two different voltage platforms are implemented in outdoor scenes through the main power supply device 1, and the distribution of electric energy is performed so as to satisfy the use of the first tool set 5 and the second tool set 6, thereby improving the utilization efficiency of the battery packs.

Further, the present embodiment may also include features such as the first charging device 9 and the third battery pack 4.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although the terms main power supply device, housing, and main battery are used more herein, the possibility of using other terms is not precluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. The electric energy storage system convenient for distribution is characterized by comprising a main power supply device, wherein a main battery core for providing initial voltage is arranged in the main power supply device, and the electric energy storage system convenient for distribution comprises a first battery pack and a second battery pack, wherein the first battery pack and the second battery pack have different output voltages;

the electric energy storage system convenient for distribution further comprises a transformation device, when the charging device I is arranged on the main power supply device, the transformation device converts the initial voltage into a first output voltage and outputs the first output voltage to the charging device I for supplying power to the pair of battery packs I; when the second charging device is arranged on the power supply device, the voltage transformation device converts the initial voltage into a second output voltage and outputs the second output voltage to the second charging device to supply power to the second battery pack; the electric energy storage system convenient for distribution further comprises a communication contact, wherein the communication contact is electrically connected with the main control module, and the communication contact is used for communicating with the outside and identifying the first charging device and the second charging device, acquiring electric quantity information of the first battery pack in the first charging device and the second battery pack in the second charging device, and transmitting the acquired information to the main control module.

2. The electric energy storage system for facilitating distribution according to claim 1, wherein a first distribution interface electrically connected with the main electric core is arranged on the main power supply device, the first distribution interface comprises a first positive contact, a second positive contact and a negative contact, the first positive contact outputs a first output voltage, and the second positive contact outputs a second output voltage;

3. The electrical energy storage system for facilitating distribution of electrical energy of claim 2, wherein the voltage transforming device comprises a first voltage step-down module and a second voltage step-down module located within the main power supply device;

4. The electric energy storage system convenient for distribution according to claim 3, wherein the first distribution interface further comprises a communication contact, a main control module is further arranged in the main power supply device, the communication contact, the first voltage reduction module and the second voltage reduction module are electrically connected with the main control module, the communication contact obtains information of the first charging device or the second charging device and transmits the information to the main control module, and the main control module controls the main battery cell to output outwards through the first voltage reduction module or the second voltage reduction module.

5. The electrical energy storage system for facilitating distribution of electrical energy of claim 1, wherein the primary power device is provided with a first distribution interface electrically connected to the primary cell, the first distribution interface comprising a second positive contact and a second negative contact;

6. The electrical energy storage system for facilitating distribution of electrical energy of claim 1, wherein the primary power source device is provided with a first distribution interface electrically connected to the primary cell, the first distribution interface comprising a first positive contact and a second negative contact;

7. The electrical energy storage system for facilitating distribution of electrical energy of claim 1, wherein the primary power device is provided with a first distribution interface electrically connected to the primary cell, the first distribution interface comprising a third positive contact, a third negative contact and a communication contact;

the voltage transformation device comprises a first voltage reduction module and a second voltage reduction module which are positioned in the main power supply device, and the first voltage reduction module and the second voltage reduction module are electrically connected with a third positive contact;

the main power supply device is also provided with a main control module, and the first voltage reducing module, the second voltage reducing module and the communication contact are electrically connected with the main control module;

when the first charging device is placed on the main power supply device, the communication contact receives information of the first charging device and transmits the information to the main control module, and the main control module controls the first voltage reducing module to output a first output voltage to a first battery pack in the first charging device;

when the charging device II is placed on the main power supply device, the communication contact receives information of the charging device II and transmits the information to the main control module, and the main control module controls the voltage reduction module II to output second output voltage to the battery pack II in the charging device II.

8. The electric energy storage system for facilitating distribution according to claim 3, 4, 6 or 7, wherein the main power supply device is provided with a containing cavity III, and a battery pack I is detachably and electrically connected in the containing cavity III;

an electric connection interface III for forming electric connection with the battery pack I is arranged in the accommodating cavity III, and the electric connection interface III is electrically connected with the voltage reduction module I to output first output voltage.

9. The electric energy storage system for facilitating distribution according to claim 3, 4, 6 or 7, wherein the main power supply device is provided with a containing cavity III, and a battery pack I is detachably and electrically connected in the containing cavity III;

an electric connection interface III for forming electric connection with the battery pack I is arranged in the accommodating cavity III, at least two voltage reduction modules I are arranged in the main power supply device, one voltage reduction module I is positioned between the power distribution interface I and the main battery core, and a first output voltage is output to the positive electrode contact I;

the other voltage reducing module I is positioned between the main battery core and the third electric connection interface and outputs a first voltage to the third electric connection interface.

10. The electric energy storage system for facilitating distribution according to claim 5, wherein the main power supply device is provided with a containing cavity IV, and the battery pack II is detachably and electrically connected in the containing cavity IV;

an electric connection interface IV used for being electrically connected with the battery pack II is arranged in the accommodating cavity IV, and the electric connection interface IV is electrically connected with the voltage reduction module II to output second output voltage.

11. The electrical energy storage system for facilitating distribution according to any one of claims 1 to 7, wherein the electrical energy storage system for facilitating distribution comprises a third battery pack, the output voltages of the first battery pack and the second battery pack being less than the third battery pack;

the main power supply device is provided with a containing cavity five, and an electric connection interface six used for being electrically connected with the battery pack three is arranged in the containing cavity five;

the voltage transformation device comprises a voltage reduction module III, wherein the voltage reduction module III is electrically connected with the main battery core and the electric connection interface six and is suitable for converting initial voltage into third output voltage to the electric connection interface six; when the battery pack III is inserted into the accommodation five, the battery pack III obtains power from the main battery cell through the electric connection interface six.

12. The electrical energy storage system for facilitating distribution of electrical power of claim 11, wherein the battery pack three has a battery capacity greater than a sum of the battery capacities of the battery pack one and the battery pack two.

13. The electrical energy storage system for facilitating distribution of electrical energy of claim 11, wherein the battery pack three way transformer device provides power to the first and second charging devices electrically connected to the main power device when the battery pack three is positioned within the fifth receiving cavity.

14. The electric energy storage system convenient for distribution is characterized by comprising a main power supply device, wherein a main battery core for providing initial voltage is arranged in the main power supply device, and the electric energy storage system convenient for distribution comprises a first battery pack and a second battery pack, wherein the first battery pack and the second battery pack have different output voltages;

15. The electrical energy storage system for facilitating distribution of electrical energy of claim 14, wherein the voltage transformation device comprises a first voltage step-down module and a second voltage step-down module within the main power device, the first voltage step-down module for converting an initial voltage to a first output voltage and the second voltage step-down module for converting the initial voltage to a second output voltage;

16. The electric energy storage system for facilitating distribution according to claim 15, wherein a first charging device is provided with a first accommodating cavity, and the first battery pack is detachably and electrically connected in the first accommodating cavity;

the first power distribution interface further comprises a first positive contact, the first positive contact is electrically connected with the first voltage reduction module, and when the first charging device is arranged on the main power supply device, the first positive contact and the second positive contact are electrically connected with the first charging device.

17. The electrical energy storage system for facilitating distribution of electrical energy of claim 14, wherein the first charging device has an electrical connection interface three, the first battery pack being removably electrically connected to the electrical connection interface three;

the first power distribution interface is suitable for being electrically connected with the first charging device and the second charging device and comprises a third positive contact, a negative contact and a communication contact;

the voltage transformation device comprises a first voltage reduction module and a second voltage reduction module which are positioned in the main power supply device and are electrically connected with the main battery cell, and the first voltage reduction module and the second voltage reduction module are electrically connected with the third positive electrode contact;