CN218385605U

CN218385605U - Battery system and battery pack

Info

Publication number: CN218385605U
Application number: CN202222164710.0U
Authority: CN
Inventors: 王良均; 张少华
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2023-01-24
Anticipated expiration: 2032-08-17

Abstract

The utility model relates to a battery system and battery package optimizes first battery package and second battery package structure, is first installation department and universal unit with first battery package design, and second battery package design is second installation department and universal unit. The first installation part comprises a first matching and connecting part, the second installation part comprises a second matching and connecting part, and the first matching and connecting part is different from the second matching and connecting part, so that the difference exists between the first installation part and the second installation part. Because the universal part of the first battery pack and the universal part of the second battery pack are designed as a common part and are designed in a compatible manner, the universal parts can be effectively exchanged between the first battery pack and the second battery pack, the compatible commonality of the internal structure is improved, and the maintenance and manufacturing cost of the battery packs is favorably reduced.

Description

Battery system and battery pack

Technical Field

The utility model relates to a battery technology field especially relates to battery system and battery package.

Background

In most power equipment, the battery pack is designed independently. In the same type of products, like the type of electric tools, the battery core parts in the battery pack are designed according to respective unique standards, and mutual compatibility and sharing are lacked, so that the interchangeability of the internal structure is poor, and the maintenance and manufacturing cost is increased.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for a battery system and a battery pack that improves the compatibility and the versatility of the structure and reduces the maintenance and manufacturing costs.

A battery system, comprising: a first battery pack including a first mounting portion including a first mating portion for mating with a first power device; a second battery pack including a second mounting portion including a second mating portion for mating with a second power device, the first mating portion being different from the second mating portion; the first battery pack and the second battery pack include a common portion that is selectively connectable with the first mounting portion or the second mounting portion to form the first battery pack or the second battery pack.

In the battery system, the structures of the first battery pack and the second battery pack are optimized, the first battery pack is designed into the first mounting part and the universal part, and the second battery pack is designed into the second mounting part and the universal part. The first mounting portion comprises a first matching portion, the second mounting portion comprises a second matching portion, and the first matching portion is different from the second matching portion, so that the difference exists between the first mounting portion and the second mounting portion. Because the universal part of the first battery pack and the universal part of the second battery pack are designed as a common part and are designed in a compatible manner, the universal parts can be effectively exchanged between the first battery pack and the second battery pack, the compatible commonality of the internal structure is improved, and the maintenance and manufacturing cost of the battery packs is favorably reduced.

In some of these embodiments, the first mating portion includes a first rail for slidably mating with the first electrical device; the second matching part comprises a second guide rail used for realizing sliding matching with the second power equipment, and the shape and/or size of the first guide rail is different from that of the second guide rail.

In some of these embodiments, the first mating portion includes a number of first terminals for transmitting power and/or signals between the first power device and a first battery pack; the second mating portion includes a number of second terminals for transmitting power and/or signals between the second power device and a second battery pack, the number of the first terminals being different from the number of the second terminals.

In some embodiments, the universal portion includes a plurality of battery cells electrically connected to each other, and a support for supporting the battery cells, and the support includes a plurality of receiving cavities for receiving the battery cells.

In some embodiments, the first mounting portion includes a first cover, the second mounting portion includes a second cover, and the common portion includes a socket selectively mateable with the first cover or the second cover, the socket being mateable with the first cover or the second cover to form a chamber for receiving the cell.

In some embodiments, the first mounting portion further comprises a first circuit board for electrically connecting with the first electrical device, and the second mounting portion further comprises a second circuit board for electrically connecting with a second electrical device, wherein the circuit disposed on the first circuit board is different from the circuit disposed on the second circuit board.

In some of these embodiments, the first circuit board is the same size as the second circuit board.

In some embodiments, the universal portion includes a connection tab for connecting adjacent cells, the connection tab being selectively connectable to the first circuit board or the second circuit board.

In some embodiments, the bracket includes a first positioning element, the first circuit board is provided with a second positioning element, the second circuit board is provided with a third positioning element, and the first positioning element is selectively coupled with the second positioning element or the third positioning element to realize the positioning of the bracket and the first circuit board or the second circuit board.

In some embodiments, a first pressing portion is disposed on a side of the first cover facing the first circuit board, a second pressing portion is disposed on a side of the second cover facing the second circuit board, the first pressing portion and the first positioning member cooperate with each other to eliminate a gap between the bracket and the first circuit board, and the second pressing portion and the first positioning member cooperate with each other to eliminate a gap between the bracket and the second circuit board.

In some embodiments, the first battery pack includes a first light source disposed on the first circuit board, the second battery pack includes a second light source disposed on the second circuit board, and the universal portion includes a light guide selectively connected to the first circuit board or the second circuit board, so that the light guide conducts light emitted from the first light source or the second light source to indicate the power of the first battery pack or the second battery pack.

In some of these embodiments, the first mounting portion includes a first locking structure for locking and/or unlocking with the first electrical device, and the second mounting portion includes a second locking structure for locking and/or unlocking with the second electrical device, the first locking structure being different from the second locking structure.

In some of these embodiments, the first and second mounting portions are the same size in the length and width directions.

A battery pack, comprising: a mounting portion and a universal portion, the mounting portion including a mating portion, the mounting portion configured as one of at least two different mounting configurations; different mounting portions can be alternatively arranged on the universal portion.

The battery pack optimizes the structure of the battery pack, and the battery pack is designed into the mounting part and the universal part. Wherein the mounting portion includes a mating portion and is configured as one of at least two different mounting configurations, whereby differences exist between different mounting portions. Because different installation departments can choose to locate on the universal section for the universal section that different installation departments correspond is compatible to be designed, consequently, universal section can realize effectively exchanging between different installation departments, promotes inner structure's compatible commonality, is favorable to reducing the maintenance and the cost of manufacture of battery package.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of a battery system according to some embodiments;

FIG. 2 is a schematic diagram of a configuration of a different battery pack and common portion according to some embodiments;

fig. 3 is an exploded view of a second battery pack configuration according to some embodiments;

FIG. 4 is a schematic view of the structure of FIG. 3 showing the engagement between the universal section and a second circuit board;

FIG. 5 is a schematic view of the second cover configuration shown in FIG. 3;

FIG. 6 is a schematic diagram of a mating structure of a universal section and a first circuit board according to some embodiments;

FIG. 7 is a schematic view of a first cover configuration according to some embodiments;

FIG. 8 is a schematic view of a light guide structure according to some embodiments;

fig. 9 is a schematic diagram of a battery pack structure according to some embodiments.

100. A battery system; 10. a battery pack; 10a, a first battery pack; 10b, a second battery pack; 10c, a third battery pack; 1. an installation part; 1a, a first mounting part; 1a1, a first circuit board; 1a2, a second positioning piece; 1a3, a first pressing part; 1a4, a first light source; 1a5, a second connecting part; 1a6, a first ladle cover; 1a7, a first locking structure; 1b, a second mounting portion; 1b1, a second circuit board; 1b2, a third positioning piece; 1b3, a second pressing part; 1b4, a second light source; 1b5, a third connecting part; 1b6, a second ladle cover; 1b7, a second locking structure; 1c, a third mounting part; 2. a mating portion; 2a, a first mating part; 2a1, a first terminal; 2a2, a first guide rail; 2b, a second mating portion; 2b1, a second terminal; 2b2, a second guide rail; 3. a general part; 2c, a second mating portion; 2c1, a third guide rail; 31. an electric core; 32. a support; 321. a first positioning member; 33. a control button; 34. a bag seat; 35. a chamber; 36. connecting sheets; 37. a light guide; 371. a first connection portion; 371a, snap projections; 372. a base body; 373. a light guide part; 374. a boss.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

In some embodiments, referring to fig. 1 and fig. 2, a battery system 100 includes: a first battery pack 10a and a second battery pack 10b. The first battery pack 10a includes a first mounting portion 1a. The first mounting portion 1a includes a first mating portion 2a for mating with a first electric power apparatus. The second battery pack 10b includes a second mounting portion 1b, and the second mounting portion 1b includes a second mating portion 2b for mating with a second electric power apparatus. The first fitting portion 2a is different from the second fitting portion 2b; the first and second battery packs 10a and 10b include a common portion 3, and the common portion 3 is selectively connected to the first or second mounting portion 1a or 1b to form the first or

second battery pack

10a or 10b.

In the battery system 100, the structures of the first battery pack 10a and the second battery pack 10b are optimized, the first battery pack 10a is designed as the first mounting portion 1a and the common portion 3, and the second battery pack 10b is designed as the second mounting portion 1b and the common portion 3. The first mounting portion 1a includes a first mating portion 2a, the second mounting portion 1b includes a second mating portion 2b, and the first mating portion 2a is different from the second mating portion 2b, so that a difference exists between the first mounting portion 1a and the second mounting portion 1 b. Because the universal part 3 of the first battery pack 10a and the universal part 3 of the second battery pack 10b are designed as a common part and are designed compatibly, the universal part 3 can be effectively exchanged between the first battery pack 10a and the second battery pack 10b, thereby improving the compatibility and the commonality of the internal structure and being beneficial to reducing the maintenance and manufacturing cost of the battery pack 10.

The first power device and the second power device may be, but not limited to, power tools, charging devices, and the like. If the first power equipment is different from the second power equipment, it is indicated that there is a difference between the first mating portion 2a mated with the first power equipment and the second mating portion 2b mated with the second power equipment. Of course, in addition to the difference between the first power equipment and the second power equipment at the mating portion, there may be a certain difference between the first power equipment and the second power equipment.

The mating manner between the first mating portion 2a and the first power device has various designs, such as: the first mating portion 2a and the first power device may be connected by, but not limited to, a bolt, a snap, a magnetic coupling, a guide rail, etc. When the first mating part 2a is in guide rail mating with the first power equipment, the first mating part 2a can be provided with an outer convex rail structure, and the first power equipment is provided with an inner concave rail structure matched with the outer convex rail structure; alternatively, the first mating portion 2a may be provided with an inner rail structure, and the first power device may be provided with an outer rail structure adapted thereto.

The common portion 3 refers to a portion having the same structure between the first battery pack 10a and the second battery pack 10b. It should be noted that the first battery pack 10a and the second battery pack 10b include the common portion 3, and the number of the common portions 3 is not limited, but it is emphasized that the first battery pack 10a and the second battery pack 10b each include the common portion 3 having the same structure, such as: the first battery pack 10a and the second battery pack 10b may share one common portion 3; one common portion 3 and the like may be provided each.

In addition, the battery system 100 may have other structures of the battery pack 10 besides the first battery pack 10a and the second battery pack 10b, such as: the battery system 100 includes three or more battery packs 10, and each of the battery packs includes a common portion 3, and in this case, the common portions 3 of the battery packs 10 can be compatible with each other and can be shared. The battery system 100 includes a first battery pack 10a, a second battery pack 10b, and a third battery pack 10c. The third battery pack 10c includes a third mounting portion 1c and a common portion 3, and the first mounting portion 1a, the second mounting portion 1b and the third mounting portion 1c are different from each other and can be matched with the common portion 3 having the same structure, for example: the third mounting portion 1c includes a third mating portion 2c, and the third mating portion 2c includes a third guide rail 2c1 for slidably mating with a third electric power apparatus.

Further, referring to fig. 2, the first mating portion 2a includes a first rail 2a2 for slidably mating with the first power device. The second mating portion 2b includes a second rail 2b2 for achieving a sliding mating with the second electric device. The first rail 2a2 and the second rail 2b2 are different in shape and/or size. Therefore, the first mounting part 1a and the second mounting part 1b are respectively mounted on the first electric power equipment and the second electric power equipment in a sliding fit manner. Due to the different shapes and/or sizes of the first guide rail 2a2 and the second guide rail 2b2, the difference exists between the first mounting part 1a and the second mounting part 1b, so that the normal use of the respective unique structures is not influenced when the universal parts 3 are interchanged.

It should be noted that the first guide rail 2a2 and the second guide rail 2b2 have different sizes, and there are various implementations, for example: the length of the first guide rail 2a2 is shorter than the length of the second guide rail 2b 2; alternatively, the width of the first rail 2a2 is narrower than the width of the second rail 2b2, and the like.

The shape of the first guide rail 2a2 is different from that of the second guide rail 2b2, and there are also various designs, such as: the first guide rail 2a2 is designed as a convex guide rail, and the second guide rail 2b2 is designed as a concave guide rail; or, the first guide rail 2a2 and the second guide rail 2b2 are both designed as convex guide rails, but the cross section of one guide rail is semicircular, and the cross section of the other guide rail is square, etc.

It should be noted that "slidably fit" refers to aligning the first rail 2a2 or the second rail 2b2 with a corresponding rail structure on the first electrical equipment or the second electrical equipment when the first mounting portion 1a or the second mounting portion 1b is assembled on the first electrical equipment or the second electrical equipment; and slides the first guide rail 2a2 or the second guide rail 2b2 in a certain direction to complete the assembly of the first mounting portion 1a or the second mounting portion 1 b.

In some embodiments, referring to fig. 3, fig. 4 and fig. 6, the first mating portion 2a includes a plurality of first terminals 2a1 for transmitting power and/or signals between the first power device and the first battery pack 10 a. The second mating portion 2b includes a number of second terminals 2b1 for transmitting power and/or signals between the second power device and the second battery pack 10b. The first terminals 2a1 and the second terminals 2b1 are different in number. Therefore, the difference between the first mating portion 2a and the second mating portion 2b is also reflected in the terminals with power and/or signal transmission, so that the first mounting portion 1a and the second mounting portion 1b can be alternatively mounted on the universal portion 3 for different numbers of the first terminal 2a1 and the second terminal 2b1, and the function normal use of the unique portion between the first mounting portion 1a and the second mounting portion 1b can be ensured when the effective compatibility between the common structures is realized.

The difference in number between the first terminals 2a1 and the second terminals 2b1 is understood to be: the number of the first terminals 2a1 is greater than the number of the second terminals 2b 1; alternatively, the number of the first terminals 2a1 is smaller than the number of the second terminals 2b1.

In addition, the function of the first terminal 2a1 in the first mating portion 2a may be to transmit power or may be to transmit a signal; alternatively, a part of the first terminals 2a1 has a function of transmitting power, and the other part has a function of transmitting signals. Likewise, the function of the second terminal 2b1 in the second mating portion 2b may also be to transmit power; or, a transmission signal; further alternatively, a part of the second terminals 2b1 has a function of transmitting power, and the other part has a function of transmitting signals, and the like.

In some embodiments, referring to fig. 4 and fig. 6, the universal section 3 includes a plurality of battery cells 31 electrically connected to each other, and a support frame 32 for supporting the battery cells 31, where the support frame 32 includes a plurality of receiving cavities for receiving the battery cells 31. Therefore, the battery cell 31 is accommodated by the accommodating cavity on the bracket 32, and a protection effect is provided for the battery cell 31. Meanwhile, the battery core 31 is also designed as the universal part 3, so that core components in the first battery pack 10a and the second battery pack 10b are interchanged and compatible, and the manufacturing cost is reduced.

The battery cell 31 is a structure capable of supplying electric energy or storing electric energy. The battery module can be formed by connecting a plurality of battery units in parallel, series or series-parallel, such as: lithium cells, sodium cells, and the like.

In some embodiments, referring to fig. 2 and 3, the first mounting portion 1a includes a first cover 1a6. The second mounting portion 1b includes a second packing 1b6. The universal part 3 includes a bag seat 34 selectively coupled to the first mounting portion 1a or the second mounting portion 1b, and the bag seat 34 is capable of being coupled to the first bag cover 1a6 or the second bag cover 1b6 to form a cavity 35 for accommodating the battery cell 31. In this way, the cell 31 is further protected by the cavity 35 formed by the mating of the pack holder 34 and the first pack cover 1a6 or the second pack cover 1b6.

It should be noted that there are various ways of mating the bag holder 34 with the first bag cover 1a6 or the second bag cover 1b6, such as: the connection between the bag seat 34 and the first or second cover 1a6 or 1b6 can be, but not limited to, bolt connection, snap connection, riveting, magnetic connection, welding, bonding, etc.

In some embodiments, referring to fig. 4 and fig. 6, the first mounting portion 1a further includes a first circuit board 1a1 for electrically connecting to a first power device. The second mounting portion 1b further includes a second circuit board 1b1 for electrical connection with a second electrical device. The circuit provided on the first circuit board 1a1 is different from the circuit provided on the second circuit board 1b1. Therefore, different circuit boards can be matched with the universal part 3 with the same structure, compatibility and interchange of the shared structure can be guaranteed, and meanwhile normal use of respective functions of the unique structure is guaranteed.

Further, the size of the first circuit board 1a1 is the same as that of the second circuit board 1b1. Wherein, the dimension of the first circuit board 1a1 is equal to the dimension of the second circuit board 1b1, which is understood as: the overall dimensions on the first circuit board 1a1 and the second circuit board 1b1 are kept equal, such as: for the design of the standard regular shape, it is only required to keep the important parameters on the first circuit board 1a1 and the second circuit board 1b1 consistent, such as the diameter, the side length and the like; for the non-standard shape design, the first circuit board 1a1 and the second circuit board 1b1 only need to have the same size as a whole, and there may be a slight difference in detail, such as: the first circuit board 1a1 and the second circuit board 1b1 are both rectangular in overall design, but structural designs such as notches or avoidance are allowed to appear on one corner or local edge of one of the circuit boards.

Therefore, different battery packs 10 have different circuit board designs but the same size, so that the structures matched with the first circuit board 1a1 and the second circuit board 1b1 can be kept the same, and structural interchangeability and compatibility are realized. Such as: the connecting pieces 36 in the first battery pack 10a and the second battery pack 10b are ensured to be positioned on the first circuit board 1a1 and the second circuit board 1b1 consistently; or, the first circuit board 1a1 and the second circuit board 1b1 are ensured to be positioned on the bracket 32 consistently; or, the light guide members 37 in the first battery pack 10a and the second battery pack 10b are ensured to be positioned on the first circuit board 1a1 and the second circuit board 1b1 consistently; alternatively, it is ensured that the first battery pack 10a and the second battery pack 10b have the same jig size in the assembly line, and one production line can be shared.

It should be noted that although the first and second mounting portions 1a and 1b of the first and second battery packs 10a and 10b are different, the first and second mounting portions 1a and 1b can be ensured to have the same length and width dimensions in order to share a production line.

In order to make the first circuit board 1a1 or the second circuit board 1b1 abut against the universal part 3 and save the space in the housing, all the components on the first circuit board 1a1 or the second circuit board 1b1 are arranged on the side of the first circuit board 1a1 or the second circuit board 1b1 facing away from the universal part 3.

Further, referring to fig. 4 and fig. 6, the universal portion 3 includes a connecting piece 36 for connecting the adjacent battery cells 31. The connection pad 36 is selectively connected to the first circuit board 1a1 or the second circuit board 1b1. In this way, it is ensured that the positioning of the connecting pieces 36 connecting different battery packs 10 on the first circuit board 1a1 and the second circuit board 1b1, respectively, is kept consistent, so that an effective compatible interchange of the structures is achieved.

In some embodiments, referring to fig. 4 and 6, the bracket 32 includes a first positioning element 321. The first circuit board 1a1 is provided with a second positioning member 1a2. The second circuit board 1b1 is provided with a third positioning member 1b2. The first positioning element 321 can be selectively coupled to the second positioning element 1a2 or the third positioning element 1b2 to position the bracket 32 and the first circuit board 1a1 or the second circuit board 1b1. Therefore, the first circuit board 1a1 and the second circuit board 1b1 are ensured to be positioned on the bracket 32 consistently, and the effective compatibility and interchange of the structure are further realized.

It should be noted that the first positioning element 321 may be a convex structure, and the second positioning element 1a2 and the third positioning element 1b2 are both a groove or a hole structure; alternatively, the first positioning element 321 may be a groove or a hole structure, and the second positioning element 1a2 and the third positioning element 1b2 are both convex structures.

Specifically, referring to fig. 4 and fig. 6, the first positioning element 321 is a positioning column, and the second positioning element 1a2 and the third positioning element 1b2 are positioning holes. When the first positioning element 321 is a positioning column, the height of the positioning column can be designed to be greater than the thickness of the positioning hole, so that the positioning column can extend out of a portion of the positioning hole after penetrating through the positioning hole, and the extended portion can also penetrate through other portions of the first installation portion 1a or the second installation portion 1b, such as the corresponding covers, etc. The shape of the positioning hole can have various designs, for example, the shape of the positioning hole can be, but is not limited to, circular, oval, square, pentagonal, etc.

It should be noted that the number and the distribution positions of the second positioning members 1a2 and the third positioning members 1b2 are designed as follows: 1. the number and the distribution positions of the second positioning pieces 1a2 and the third positioning pieces 1b2 can be kept the same; 2. the number of the second positioning members 1a2 is different from that of the third positioning members 1b2, and the distribution positions of the second positioning members 1a2 and the third positioning members 1b2 may be partially the same or partially different, and it should be noted that, when designing the distribution positions of the second positioning members 1a2 and the third positioning members 1b2, the problem of structural interference between the first circuit board 1a1 or the second circuit board 1b1 and the first positioning member 321 should be considered, and if structural interference occurs, the positions may be subjected to an avoidance design or a cutting process.

Further, referring to fig. 5 and fig. 7, a first press-fit portion 1a3 is disposed on a side of the first cover 1a6 facing the first circuit board 1a1. The second cover 1b6 is provided with a second press fit portion 1b3 on a side facing the second circuit board 1b1. The first pressing portion 1a3 and the first positioning element 321 cooperate with each other to eliminate the gap between the bracket 32 and the first circuit board 1a1, and the second pressing portion 1b3 and the first positioning element 321 cooperate with each other to eliminate the gap between the bracket 32 and the second circuit board 1b1. Therefore, the fit of the press fit parts on different installation parts 1 between the first positioning pieces 321 can be kept consistent, the gap between the bracket 32 and the first circuit board 1a1 or the second circuit board 1b1 can be eliminated, and the structural compactness is improved.

In some embodiments, referring to fig. 4, fig. 6 and fig. 8, the first battery pack 10a includes a first light source 1a4 disposed on the first circuit board 1a1, the second battery pack 10b includes a second light source 1b4 disposed on the second circuit board 1b1, and the universal portion 3 includes a light guide 37 selectively connected to the first circuit board 1a1 or the second circuit board 1b1, so that the light guide 37 guides light emitted from the first light source 1a4 or the second light source 1b4, thereby indicating the power of the first battery pack 10a or the second battery pack 10b. In this way, it is ensured that the conduction fit of the first light source 1a4 and the second light source 1b4 in different battery packs 10 with the light guide 37 is consistent.

The light guide 37 is a device that transmits light from a light source to another point at a certain distance from the light source with minimal loss (e.g., total reflection or refraction), such as a light guide column. The material can be, but not limited to, PC (Polycarbonate ) plastic, PMMA (polymethyl methacrylate ) plastic, etc.

The light guide 37 conducting the light emitted by the first light source 1a4 or the second light source 1b4 should be understood as: the light emitted by the first light source 1a4 or the second light source 1b4 can be projected on the light guide 37 and conducted inside, for example: one end of the light guide member 37 is attached to the light emitting surface of the first light source 1a4 or the second light source 1b4; alternatively, the light guide 37 is not in contact with the first light source 1a4 or the second light source 1b4, and a certain distance is kept between the two, but the light guide 37 needs to be within the light emitting range of the first light source 1a4 or the second light source 1b 4. The first light source 1a4 or the second light source 1b4 may be an LED lamp.

In addition, the light guide 37 guides the light emitted from the first light source 1a4 or the second light source 1b4 out, and various implementations are possible, such as: one end of the light guide member 37 extends out of the first battery pack 10a or the second battery pack 10 b; alternatively, the light guide member 37 does not extend out of the first battery pack 10a or the second battery pack 10b, but the first battery pack 10a or the second battery pack 10b is provided with a light guide hole or a transparent region or the like corresponding to the light guide member 37.

Further, referring to fig. 4 and fig. 6, the light guide 37 has a first connection portion 371. The first circuit board 1a1 is provided with a second connecting part 1a5, and the second circuit board 1b1 is provided with a third connecting part 1b5; the first connection portion 371 is detachably coupled to the second connection portion 1a5 or the third connection portion 1b 5. Thus, the connection between the light guide piece 37 and different circuit boards is ensured to be unified and interchanged.

It should be noted that, there are various mating manners between the first connection portion 371 and the second connection portion 1a5 or the third connection portion 1b5, such as: the matching and connecting mode can be clamping, magnetic attraction, hook and the like. Therefore, the two can be only detachably connected. Wherein, "detachable" means: after the first connection portion 371 is connected to the second connection portion 1a5 or the third connection portion 1b5, the first connection portion 371 and the second connection portion 1a5 or the third connection portion 1b5 can be separated by an external force, but the connection function between the first connection portion 371 and the second connection portion 1a5 or the third connection portion 1b5 is not affected, that is, after separation, the first connection portion 371 and the second connection portion 1a5 or the third connection portion 1b5 can still be connected again.

When the first connection portion 371 and the second connection portion 1a5 or the third connection portion 1b5 are clamped, the first connection portion 371 can be a fastening protrusion 371a, and the second connection portion 1a5 or the third connection portion 1b5 can be designed to be a hole-shaped structure.

Furthermore, referring to fig. 4 and fig. 6, the first connection portions 371 and the second connection portions 1a5 or the third connection portions 1b5 are plural, and the first connection portions 371 and the second connection portions 1a5 or the third connection portions 1b5 are correspondingly coupled one to one. So, utilize a plurality of first connecting portions 371 and a plurality of second connecting portion 1a5 or third connecting portion 1b5 to correspond to join in marriage and connect, increase the binding point between leaded light piece 37 and the different circuit boards for leaded light piece 37 is more stable in the assembly on different circuit boards, is favorable to promoting the stability of product structure.

It should be noted that when there are a plurality of second connection portions 1a5 or third connection portions 1b5, the arrangement manner thereof may be various on the respective circuit boards, for example, the second connection portions are arranged in a delta shape, arranged in a straight shape, and arranged in an array; or in a circular arrangement, etc. And the arrangement of the first connection 371 on the light guide 37 may be consistent with the arrangement of the second connection 1a5 or the third connection 1b 5. Of course, if at least two first connection portions 371 are respectively located at two opposite ends of the light guide member 37, it is ensured that the light guide member 37 is stressed stably on the circuit board, and the stability of the structure is further improved.

In some embodiments, referring to fig. 3, the universal part 3 further includes a control button 33 electrically connected to the first circuit board 1a1 or the second circuit board 1b1. The control button 33 is fixed on the light guide member 37, and at least a portion of the control button is exposed outside the first battery pack 10a or the second battery pack 10b. The control knob 33 is configured to: the first light source 1a4 or the second light source 1b4 is controlled to be turned on or off by the electric first circuit board 1a1 or the second circuit board 1b1. When the control button 33 is triggered, the first circuit board 1a1 or the second circuit board 1b1 receives a trigger signal, and controls the first light source 1a4 or the second light source 1b4 to be turned on or off according to the trigger signal. Because the control button 33 is fixed on the light guide member 37 and forms an integral structure with the light guide member 37, when assembling, the first connection portion 371 and the second connection portion 1a5 or the third connection portion 1b5 only need to be matched and connected to complete the assembling of the two, thereby effectively simplifying the assembling process of the battery pack 10 and reducing the design and production cost.

It should be noted that, at least a portion of the control button 33 is exposed outside the first battery pack 10a or the second battery pack 10b, so as to facilitate the touch control of the user. The control button 33 can be triggered in various ways, such as: controlling the lighting condition of the first light source 1a4 or the second light source 1b4 by rotating the control knob 33; alternatively, the first light source 1a4 or the second light source 1b4 is controlled by sliding the control knob 33 left and right; alternatively, the control button 33 is touched by touch technology to control the operation of the first light source 1a4 or the second light source 1b 4.

Further, referring to fig. 8, the light guide member 37 includes a base 372, a boss 374 protruding outward from the base 372, and a light guide portion 373 disposed on the base 372. The first connection portion 371 is disposed on the boss 374, and the control knob 33 is fixed on the seat body 372. So, outwards protruding extension boss 374 on pedestal 372 to set up first connecting portion 371 on boss 374, when making leaded light piece 37 be connected with first circuit board 1a1 or second circuit board 1b1, pedestal 372 and first circuit board 1a1 or second circuit board 1b1 can keep certain dodging the clearance, takes place structural interference when avoiding the installation. Meanwhile, the light guide portion 373 and the control knob 33 are both mounted on the base 372, so that the light guide portion 373 and the control knob 33 are integrated, which is beneficial to simplifying the assembly process.

The light guide portion 373 has a light guide function, and includes: PC or acrylic columnar structure, etc.

Alternatively, the connection of the boss 374 on the base 372 can be, but is not limited to, bolting, snapping, riveting, welding, bonding, integrally forming, etc.

In some embodiments, referring to fig. 8, the light guide 37 and the control knob 33 are integrally formed, that is, the light guide 37 and the control knob 33 are integrally formed, and the integral design can complete the assembly of the light guide 37 and the control knob 33 at one time, thereby reducing the design and production costs. The integral molding method can be, but not limited to, stamping, injection molding, die casting, bending, and the like.

In some embodiments, the first mounting portion 1a includes a first locking structure 1a7 for locking and/or unlocking with a first electrical device, and the second mounting portion 1b includes a second locking structure 1b7 for locking and/or unlocking with a second electrical device, the first locking structure 1a7 being different from the second locking structure 1b7. In this way, the locking of different battery packs 10 can be easily released by the first locking structure 1a7 or the second locking structure 1b7, so as to facilitate replacement of the respective battery packs 10.

It should be noted that the first locking structure 1a7 can lock the first cover 1a6 or unlock the first cover 1a6, and the structure thereof is designed in various ways, for example: when the first battery pack 10a is buckled on the first power equipment in a buckling mode, the first locking structure 1a7 can be a bolt button, and the buckling structure between the first battery pack 10a and the first power equipment is pushed open when being triggered; alternatively, the first battery pack 10a is engaged with the first power device in a pull-in manner, and at this time, the first locking structure 1a7 may be powered off to eliminate the pull-in force therebetween.

Likewise, the second locking structure 1b7 can also be designed with reference to the first locking structure 1a7, but should remain different from the first locking structure 1a 7. Such as: the second locking structure 1b7 is different from the first locking structure 1a7 in locking manner, shape, size, and the like.

In addition, the first locking structure 1a7 or the second locking structure 1b7 is located on the same side as the control knob 33. So, set up same one side with first locking structure 1a7 or second locking structure 1b7 and control button 33 for all control switch are all integrated together, and convenience of customers is favorable to promoting the use of product and experiences.

In some embodiments, referring to fig. 2, the first mounting portion 1a and the second mounting portion 1b have the same dimensions in the length direction and the width direction. Thus, the first mounting part 1a and the second mounting part 1b can share a production line. Specifically, in some embodiments, the first cover 1a6 and the second cover 1b6 have the same dimensions in the length direction and the width direction. The dimensions of the first cover 1a6 and the second cover 1b6 in the longitudinal direction and the width direction are the same as: the first cover 1a6 is the same size as the second cover 1b6 as a whole, such as: the first cover 1a6 and the second cover 1b6 are kept the same in the entire length direction and the entire width direction, respectively, but may have a slight difference in size or the like in a partial position therebetween.

In some embodiments, referring to fig. 9, a battery pack 10 includes: a mounting portion 1 and a common portion 3. The mounting portion 1 includes a mating portion 2, the mounting portion 1 being configured as one of at least two different mounting configurations. Different mounting portions 1 can alternatively be provided on the common portion 3.

In the battery pack 10, the structure of the battery pack 10 is optimized, and the battery pack 10 is designed as the mounting portion 1 and the common portion 3. Wherein the mounting portion 1 includes a mating portion 2, and the mounting portion 1 is configured as one of at least two different mounting structures, it can be seen that there are differences between the different mounting portions 1. Because different installation parts 1 can be selected and arranged on the universal part 3, the universal parts 3 corresponding to different installation parts 1 are designed in a compatible way, so that the universal parts 3 can be effectively exchanged among different installation parts 1, the compatible sharing performance of the internal structure is improved, and the maintenance and manufacturing cost of the battery pack 10 is favorably reduced.

It should be noted that, the structural design of the universal section 3 in this embodiment may refer to the universal section 3 in any of the above embodiments, and details are not repeated here. Meanwhile, the structure of the mounting portion 1 in this embodiment can also be designed with reference to the first mounting portion 1a or the second mounting portion 1b in any of the above embodiments, and the structure of the mating portion 2 can be designed with reference to the first mating portion 2a or the second mating portion 2b in any of the above embodiments, for example: the mounting part 1 may include a circuit board, a cover, a locking structure, etc.; and the mating portion 2 may further include a rail, a terminal, and the like. In this regard, the present embodiment is not listed.

All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A battery system, comprising:

a first battery pack including a first mounting portion including a first mating portion for mating with a first power device;

a second battery pack including a second mounting portion including a second mating portion for mating with a second power device, the first mating portion being different from the second mating portion;

the first battery pack and the second battery pack comprise a common universal part, and the universal part can be selectively connected with the first mounting part or the second mounting part to form the first battery pack or the second battery pack.

2. The battery system of claim 1, wherein the first mating portion comprises a first rail for slidably mating with the first electrical device; the second matching part comprises a second guide rail used for realizing sliding matching with the second power equipment, and the shape and/or size of the first guide rail is different from that of the second guide rail.

3. The battery system of claim 1, wherein the first mating portion comprises a number of first terminals for transmitting power and/or signals between the first power device and a first battery pack; the second mating portion includes a number of second terminals for transmitting power and/or signals between the second power device and a second battery pack, the number of the first terminals being different from the number of the second terminals.

4. The battery system of claim 1, wherein the common portion comprises a plurality of cells electrically connected to one another, and a support for supporting the cells, the support comprising a plurality of pockets for receiving the cells.

5. The battery system of claim 4, wherein the first mounting portion comprises a first cover and the second mounting portion comprises a second cover, and wherein the common portion comprises a receptacle selectively mateable with the first cover or the second cover, the receptacle mateable with the first cover or the second cover to form a chamber to receive the cell.

6. The battery system of claim 5, wherein the first mounting portion further comprises a first circuit board for electrically connecting with the first power device, the second mounting portion further comprises a second circuit board for electrically connecting with a second power device, the first circuit board having circuitry disposed thereon that is different than circuitry disposed on the second circuit board.

7. The battery system of claim 6, wherein the first circuit board is the same size as the second circuit board.

8. The battery system of claim 6, wherein the universal portion comprises a connection tab for connecting adjacent cells, the connection tab being selectively connectable to the first circuit board or the second circuit board.

9. The battery system of claim 6, wherein the bracket comprises a first positioning member, the first circuit board is provided with a second positioning member, the second circuit board is provided with a third positioning member, and the first positioning member is selectively coupled with the second positioning member or the third positioning member to position the bracket with the first circuit board or the second circuit board.

10. The battery system of claim 9, wherein a side of the first cover facing the first circuit board is provided with a first press fit portion, a side of the second cover facing the second circuit board is provided with a second press fit portion, the first press fit portion and the first positioning member cooperate with each other to eliminate a gap between the bracket and the first circuit board, and the second press fit portion and the first positioning member cooperate with each other to eliminate a gap between the bracket and the second circuit board.

11. The battery system of claim 6, wherein the first battery pack includes a first light source disposed on the first circuit board, the second battery pack includes a second light source disposed on the second circuit board, and the common portion includes a light guide selectively connectable to the first circuit board or the second circuit board such that the light guide conducts light emitted by the first light source or the second light source to indicate the power level of the first battery pack or the second battery pack.

12. The battery system of claim 1, wherein the first mounting portion includes a first locking structure for locking and/or unlocking with the first electrical device, and the second mounting portion includes a second locking structure for locking and/or unlocking with the second electrical device, the first locking structure being different from the second locking structure.

13. The battery system according to claim 1, wherein the first mounting portion and the second mounting portion have the same dimensions in the length direction and the width direction.

14. A battery pack, comprising:

a mounting portion including a mating portion for mating with an electrical device, the mounting portion configured as one of at least two different mounting configurations;

a universal portion to which different mounting portions can be alternatively provided.