CN210692625U

CN210692625U - Hand-held electric tool battery

Info

Publication number: CN210692625U
Application number: CN201921800428.9U
Authority: CN
Inventors: 陈阿文; 刘斌生; 张凤敏
Original assignee: Fujian Scud Power Technology Co Ltd
Current assignee: Fujian Scud Power Technology Co Ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-06-05
Anticipated expiration: 2029-10-24

Abstract

The utility model discloses a hand-held electric tool battery, which comprises a base, a battery pack and a top cover; the group battery is embedded inside the base, and group battery one end links to each other with the top cap, and inside the top cap linked to each other with the base is fixed in the base with the battery, its characterized in that: the battery pack comprises a first battery cell group and a second battery cell group; the first electric core group is fixed in the left bracket; the second electric core group is fixed in the right bracket; one sides of the left bracket and the right bracket are connected with the screw through the screw column, and the other sides of the left bracket and the right bracket are connected with the baffle groove through the clamping hook; be connected with the BMS mainboard on the group battery, BMS mainboard one end vertical connection has the output protection shield. The utility model discloses whole battery compact structure, multiple fixed modes such as trip draw-in groove, screw are used in the cooperation, have improved the vibration of battery, have fallen, have struck, have rolled the stability under the circumstances such as.

Description

Hand-held electric tool battery

Technical Field

The utility model relates to an electric tool battery technical field especially involves a hand-held type electric tool battery.

Background

In recent years, electric tools have been widely used, for example, sports equipment, electric vehicles, white goods, and even medical electronic products including a tooth grinding device commonly used in a dental office. With the continuous shift of the global electric tool industry to China, the electric tools in China obtain strong development power and keep a stable growth situation all the time. The development of electric tools also presents the trend of miniaturization, light weight and cordless, so that enterprises face a plurality of technical challenges. Because the external structure of the electric tool pursues small and light weight nowadays, the inside of the battery can be required to be compactly designed and designed in various schemes, and the battery can withstand different use environments such as vibration, falling, impact, rolling and the like in daily life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the weak point among the above-mentioned prior art and provide a simple structure, small and exquisite, can satisfy different use scenes, a reliable and stable hand-held type electric tool battery.

The utility model discloses a realize through following mode:

a hand-held electric tool battery comprises a base, a battery pack and a top cover; the group battery is embedded inside the base, and group battery one end links to each other with the top cap, and inside the top cap linked to each other with the base is fixed in the base with the battery, its characterized in that: the battery pack comprises a first battery cell group and a second battery cell group; the first electric core group is fixed in the left bracket; the second electric core group is fixed in the right bracket; one sides of the left bracket and the right bracket are connected with the screw through the screw column, and the other sides of the left bracket and the right bracket are connected with the baffle groove through the clamping hook; be connected with the BMS mainboard on the group battery, BMS mainboard one end vertical connection has the output protection shield.

Furthermore, the first electric core group and the second electric core group are internally provided with the same number of electric cores; the battery cell is fixed in the left support and the right support through the matching of the clamping groove and the clamping hook.

Furthermore, the nickel sheet of the battery pack is positioned through a positioning column arranged on the left support; insulating buffer gaskets are attached to two sides of the battery pack.

Furthermore, adopt right angle formula pin header welded fastening to become a whole between BMS mainboard and the output protection shield.

The beneficial effects of the utility model reside in that: electric core in the group battery passes through the trip draw-in groove cooperation to be fixed in left socle and right branch frame, and easy to assemble can reduce the damage to electric core when falling simultaneously. The left bracket and one side of the right bracket are connected with the screw through the screw post, the other side of the left bracket is connected with the gear groove through the clamping hook, on one hand, the first electric core group is more stable to be connected with the second electric core group, and on the other hand, the installation and the disassembly are convenient. The insulating buffer gaskets pasted on the two sides of the battery pack can effectively protect the end part of the battery pack in falling and provide effective buffer. Adopt right angle formula row needle welding BMS mainboard and output protection shield to improve the connection stability between the core component.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an exploded view of a battery pack of the present invention;

fig. 3 is a perspective view of the battery pack of the present invention;

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

a hand-held electric tool battery comprises a base 1, a battery pack 2 and a top cover 3; group battery 2 is embedded inside

base

1, and 2 one ends of group battery link to each other with top cap 3, and top cap 3 links to each other with base 1 and is fixed in inside 1 base, its characterized in that with the battery: the battery pack 2 comprises a first battery cell group 21 and a second battery cell group 22; the first electric core group 21 is fixed in the left bracket 23; the second electric core group 22 is fixed in the right bracket 24; one sides of the left bracket 23 and the right bracket 24 are connected with the screw 7 through the screw column 6, and the other sides are connected with the baffle groove 8 through the clamping hook 4; the battery pack 2 is connected with a BMS main board 26, and one end of the BMS main board 26 is vertically connected with an output protection board 25.

Furthermore, the first electric core group 21 and the second electric core group 22 are provided with the same number of electric cores; the battery cell is fixed in the left support 23 and the right support 24 through the clamping groove 5 and the clamping hook 4 in a matching mode.

Further, the nickel sheet 10 of the battery pack 2 is positioned by a positioning column 11 arranged on the left bracket 23; insulating buffer gaskets 9 are attached to both sides of the battery pack 2.

Further, the BMS main board 26 and the output protection board 25 are welded and fixed into a whole by a right-angle pin header 27.

The spot welding mode of the battery cores in the first battery core group 21 and the second battery core group 22 is automatic projection spot welding, and the production efficiency is high. The first electric core group 21 and the second electric core group 22 are fixedly connected and matched to be connected with the screw 7 through the screw column 6, and the other end of the first electric core group is connected with the blocking groove 8 through the clamping hook 4. The fixed connection mode is stable and reliable. The BMS main board 26 and the output protection board 25 are welded and fixed into a whole by a right-angle pin header 27. The BMS board 26 mainly connects the communication and input/output of the first cell group 21 and the second cell group 22. The output protection board 25 is provided with an output socket 28, and current and communication transmission is carried out between the output protection board 25 and the BMS main board 26 through a right-angle pin header 27. The output protection board 25 is locked and fixed on the right bracket 24 through a plurality of screws, and the nickel sheet 10 on the battery pack 2 is connected with the output protection board 25 by using an automatic soldering process.

Electric core in the group battery 2 passes through 4 draw-in grooves 5 of trip and cooperates and fix in left socle 23 and right branch frame 24, and is easy to assemble, can reduce the damage to electric core when falling simultaneously. Left socle 23 is connected with screw 7 through screw post 6 with right branch frame 24 one side, and the opposite side passes through trip 4 to be connected with shelves groove 8, makes first electric core group 21 more stable with being connected of second electric core group 22 on the one hand, and on the other hand conveniently installs and dismantles. The insulating buffer gaskets 9 adhered to the two sides of the battery pack 2 can effectively protect the end part of the battery pack 2 in falling and provide effective buffer. The use of the right-angled pin header 27 to weld the BMS board 26 and the output protection board 25 improves the connection stability between the core components. The whole battery can meet the reliability tests of vibration, falling, impact, rolling and the like in the UN38.3 standard.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hand-held electric tool battery comprises a base (1), a battery pack (2) and a top cover (3); group battery (2) are embedded inside base (1), and group battery (2) one end links to each other with top cap (3), and top cap (3) link to each other with base (1) and are fixed in inside base (1) its characterized in that with the battery: the battery pack (2) comprises a first battery cell group (21) and a second battery cell group (22); the first electric core group (21) is fixed in the left bracket (23); the second electric core group (22) is fixed in the right bracket (24); one sides of the left bracket (23) and the right bracket (24) are connected with the screw (7) through the screw column (6), and the other sides are connected with the baffle groove (8) through the clamping hook (4); the battery pack (2) is connected with a BMS main board (26), and one end of the BMS main board (26) is vertically connected with an output protection board (25).

2. A hand held power tool battery as claimed in claim 1, wherein: the first electric core group (21) and the second electric core group (22) are internally provided with the same number of electric cores; the battery cell is fixed in the left support (23) and the right support (24) through the clamping groove (5) and the clamping hook (4).

3. A hand held power tool battery as claimed in claim 1, wherein: a nickel sheet (10) of the battery pack (2) is positioned through a positioning column (11) arranged on the left support (23); insulating buffer gaskets (9) are stuck on two sides of the battery pack (2).

4. A hand held power tool battery as claimed in claim 1, wherein: the BMS main board (26) and the output protection board (25) are welded and fixed into a whole by adopting a right-angle pin header (27).