CN211654926U

CN211654926U - Novel lithium battery pack

Info

Publication number: CN211654926U
Application number: CN202020739264.XU
Authority: CN
Inventors: 蒋猛猛; 赵旭; 张伟; 宗哲
Original assignee: Shandong Haidi New Energy Technology Co ltd
Current assignee: Shandong Haidi New Energy Technology Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2020-10-09
Anticipated expiration: 2030-05-08

Abstract

The utility model discloses a novel lithium battery pack, including battery case upper cover and group battery inferior valve, be equipped with the cavity in the group battery inferior valve, group battery inferior valve top is connected with the battery case upper cover, be equipped with the group battery that a plurality of lithium cell series connection combination was arranged in the group battery inferior valve, it is fixed that the group battery outside passes through the protection support, the group battery sets up on the fixed collet upper portion of group battery, group battery upper portion is equipped with the protection shield support, protection shield support upper portion is equipped with the BMS board, BMS board electric connection group battery, BMS board top is equipped with the battery case upper cover, be equipped with positive negative pole lead terminal on the BMS board, positive negative pole lead terminal link up the battery case upper cover, cover the lithium battery power display who is equipped with the electric connection group battery. The utility model overcomes prior art shortcoming, light in weight recycles, makes things convenient for the dismouting to change, and application scope is wide.

Description

Novel lithium battery pack

Technical Field

The utility model relates to the technical field of batteries, specifically indicate a novel lithium cell group.

Background

The lead-acid battery of 12V20Ah that commonly uses on the market has certain shortcoming, and lead-acid battery pack energy density is little, and weight is heavy, and conventional 12V20AhQ lead-acid battery quality 6.3KG, lead-acid battery pack live time are short (the number of cycles is few), and the maintenance of inconvenient taking apart is changed, awaits urgent need to improve.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art shortcoming, provide a novel lithium cell group.

In order to solve the technical problem, the utility model provides a technical scheme does: a novel lithium battery pack comprises a battery case upper cover and a battery pack lower cover, wherein a cavity is arranged in the battery pack lower cover, the top of the battery pack lower cover is connected with the battery case upper cover, a plurality of battery packs which are formed by connecting and combining lithium batteries in series are arranged in the battery pack lower cover, the outside of the battery packs is fixed through a protective support, the battery packs are arranged on the upper portion of a battery pack fixing bottom support, a protective plate support is arranged on the upper portion of the battery pack, a BMS plate is arranged on the upper portion of the protective plate support, the BMS plate is electrically connected with the battery packs, a battery case upper cover is arranged above the BMS plate, positive and negative lead ends are arranged on the BMS plate and penetrate through the battery case upper cover, a lithium battery electric quantity display which is electrically connected with the battery packs, the bottom is equipped with spacing projection in the group battery inferior valve, and cooperatees with the spacing shrinkage pool of the fixed collet bottom of group battery.

Further, the specification of the battery pack is 24V10 Ah.

Further, the protection plate bracket is fixed on an external protection bracket of the battery pack by screws.

Further, the sealing cover between the battery case upper cover and the battery pack lower cover is fixed by bolts or sealed by glue.

Further, the BMS board is fixed to the protection board bracket by a screw.

Compared with the prior art, the utility model the advantage lie in: the utility model discloses a can replace the lead acid battery's of the commonly used 12V20Ah in the market lithium cell group. The size outward appearance of this patent group battery is the same with former lead acid battery's shell size, but built-in is the lithium cell group that lithium cell electricity core assembled, and the closing cap mode adopts bolt fastening and glues the closing cap mode that two kinds of while all can be used, and there is the fixed spacing projection of group battery of dress usefulness inside, and the BMS support of group battery both can fix the group battery, the BMS of group battery again, and size and structural can replace lead acid battery completely.

The problems of small energy density and heavy weight of a conventional lead-acid battery pack are solved, and the mass of the lithium battery with the same capacity is only 3KG, so that the weight is greatly reduced. The problem that the service time of the lead-acid battery pack is short is solved, and the lithium battery can be circulated for 3000 times and 4000 times; compared with a lead-acid battery pack, the battery pack has the advantages that the upper cover can be detached for maintenance, and the process is simple; the same shell can be freely selected in the same electricity quantity, and the voltage and the capacity can be 24V10Ah-48V5Ah (only the series-parallel connection of the battery cells is changed).

The lithium battery is a ferrous phosphate lithium battery or a nickel-cobalt-manganese mixed ternary lithium ion battery, is a high-energy density battery, has wide application field, can be used in the fields of batteries such as electric equipment, electric vehicles, energy storage field, uninterruptible power supply and the like, has wide application range, and replaces the application field of the existing lead-acid battery.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

As shown in the figure: 1. lithium cell power display 2, battery case upper cover, 3, protection shield support, 4, group battery, 5, the fixed collet of group battery, 6, group battery inferior valve, 7, BMS board, 8, positive negative lead terminal.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.

The present invention will be described in further detail with reference to the accompanying drawings.

In practical implementation of the utility model, the novel lithium battery pack comprises a battery case upper cover 2 and a battery pack lower cover 6, wherein a cavity is arranged in the battery pack lower cover 6, the top of the battery pack lower cover 6 is connected with the battery case upper cover 2, a plurality of battery packs 4 which are arranged in series and combined by lithium batteries are arranged in the battery pack lower cover 6, the outside of the battery packs 4 is fixed by a protective bracket, the battery packs 4 are arranged on the upper part of a battery pack fixing base 5, the upper part of the battery packs 4 is provided with a protective plate bracket 3, the upper part of the protective plate bracket 3 is provided with a BMS plate 7, the BMS plate 7 is electrically connected with the battery packs, a battery case upper cover 2 is arranged above the BMS plate 7, positive and negative lead terminals 8 are arranged on the BMS plate 7, the positive and negative lead terminals 8 penetrate, the inside four corners department of group battery inferior valve 6 is equipped with the bead, and cooperatees with protection shield support 3, the fixed collet 5 of group battery, the bottom is equipped with spacing projection in the group battery inferior valve 6, and cooperatees with the spacing shrinkage pool of the fixed collet 5 bottom of group battery, the specification of group battery 4 is 24V10Ah, protection shield support 3 passes through the fix with screw on the outside protection support of group battery 4, the closing cap mode between battery case upper cover 2 and the group battery inferior valve 6 adopts bolt fastening or glues to seal, BMS board 7 passes through the fix with screw on protection shield support 3.

The utility model discloses a theory of operation: the lithium battery electric connection display is embedded on the upper cover of the battery case, and the upper cover of the battery case can be fixed on the fixing nut of the lower shell of the battery case through bolts. And the BMS bracket is fixed on the fixing hole of the lower case of the battery case through self-tapping. The battery can be fixed to the top, and BMS support, shell inferior valve and for the upper cover fixed orifices stud can fixed connection. The battery pack may be fixed to the fixing posts of the lower case of the battery pack through the fixing holes at the lower side by self-tapping. The battery pack fixing base is fixed on the fixing hole in the lower bottom surface of the battery case lower shell through self-tapping, the universal support in the market can be matched and fixed, and the battery pack lower shell and the battery case upper cover can be fixed together through bolts.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a novel lithium cell group, includes battery case upper cover (2) and group battery inferior valve (6), its characterized in that: the battery pack is characterized in that a cavity is arranged in the battery pack lower shell (6), the top of the battery pack lower shell (6) is connected with a battery case upper cover (2), a plurality of battery packs (4) which are connected in series and arranged in a lithium battery series combination mode are arranged in the battery pack lower shell (6), the outside of each battery pack (4) is fixed through a protection support, each battery pack (4) is arranged on the upper portion of a battery pack fixing bottom support (5), a protection plate support (3) is arranged on the upper portion of each battery pack (4), a BMS plate (7) is arranged on the upper portion of each protection plate support (3), each BMS plate (7) is electrically connected with the corresponding battery pack, a battery case upper cover (2) is arranged above each BMS plate (7), positive and negative lead ends (8) are arranged on each BMS plate (7), each positive and negative lead end (8) penetrates, the inside four corners department of group battery inferior valve (6) is equipped with the bead, and cooperatees with fender shield support (3), the fixed collet of group battery (5), the bottom is equipped with spacing projection in group battery inferior valve (6), and cooperatees with the spacing shrinkage pool of the fixed collet of group battery (5) bottom.

2. The novel lithium battery pack of claim 1, wherein: the specification of the battery pack (4) is 24V10 Ah.

3. The novel lithium battery pack of claim 1, wherein: the protection plate bracket (3) is fixed on an external protection bracket of the battery pack (4) through screws.

4. The novel lithium battery pack of claim 1, wherein: and the sealing cover between the battery case upper cover (2) and the battery pack lower shell (6) is fixed by bolts or sealed by glue.

5. The novel lithium battery pack of claim 1, wherein: the BMS board (7) is fixed on the protection board bracket (3) through screws.