CN216450706U

CN216450706U - BMS intelligence lithium cell group

Info

Publication number: CN216450706U
Application number: CN202123137587.5U
Authority: CN
Inventors: 缪缘; 马吉富; 于维涛
Original assignee: Hangzhou Kingor New Energy Technology Co ltd
Current assignee: Hangzhou Kingor New Energy Technology Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-05-06
Anticipated expiration: 2031-12-15

Abstract

The utility model relates to a BMS intelligent lithium battery pack which comprises a box body, a battery soft pack arranged in the box body and a BMS battery management module arranged in the battery, wherein the box body is internally divided into two cavities, namely a battery soft pack cavity and a BMS battery management module installation cavity, handle assemblies are arranged on two sides of the box body corresponding to the positions of the BMS battery management module installation cavities, a heat conduction silica gel sheet and a heat dissipation aluminum block are arranged on the BMS battery management module, a fin type heat dissipation aluminum plate is arranged on the BMS battery management module towards the battery soft pack side, and a fin type heat dissipation aluminum plate is arranged on the inner side of a battery panel. At the built-in BMS management module of battery box of large capacity, reduce the battery unit quantity that BMS management module needs to manage like this, reduce the data that need handle, do the heat dissipation to this BMS management module simultaneously and handle to avoid BMS management module overheated, guarantee UPS's life.

Description

BMS intelligence lithium cell group

Technical Field

The utility model relates to a BMS intelligent lithium battery pack.

Background

UPS, i.e. an uninterruptible power supply, is an uninterruptible power supply that includes an energy storage device. The power supply device is mainly used for providing uninterrupted power supply for partial equipment with higher requirements on power supply stability. In order to obtain a stable output, a general UPS connects a plurality of battery cells in series, and a BMS battery management system is developed to better manage the charge and discharge of the battery cells and monitor the operation of the battery cells in real time.

The BMS battery management system is a system for intelligently managing and maintaining each battery unit, preventing the battery from being overcharged and overdischarged, prolonging the service life of the battery and monitoring the state of the battery, and is connected with a Server end through a wireless communication module.

For a low-end or small-capacity UPS, the management of a plurality of battery units is directly integrated into a control box and is uniformly managed by the control box, so that the UPS is relatively convenient and processes less data. However, for a large-capacity UPS, the capacity of each battery unit is relatively large, the battery units are integrated into a control box for unified management, data to be processed is large, ripple current is easily generated in a high-voltage UPS battery pack, and at this time, overheating of the battery management module of the uniformly managed BMS is easily generated, and this situation continues to occur, which may affect the service life of the UPS. There is therefore a need for improvements in the way this unified management is.

Disclosure of Invention

The utility model provides a BMS intelligent lithium battery pack, wherein a BMS management module is arranged in a large-capacity battery box, so that the number of battery units to be managed by the BMS management module is reduced, data to be processed is reduced, and meanwhile, the BMS management module is subjected to heat dissipation processing, so that the overheating of the BMS management module is avoided, and the service life of a UPS is ensured.

The specific technical scheme of the utility model is as follows: the utility model provides a BMS intelligence lithium cell group, the power distribution box comprises a box body, set up the battery soft package in the box, set up the BMS battery management module in the battery, divide into two chambeies in the box, be battery soft package chamber and BMS battery management module installation chamber respectively, and the position that corresponds BMS battery management module installation chamber in the box both sides sets up the handle subassembly, set up heat conduction silica gel piece and heat dissipation aluminium piece in the BMS battery management module, BMS battery management module is provided with fin formula heat dissipation aluminum plate towards the battery soft package side, the battery panel inboard is provided with fin formula heat dissipation aluminum plate.

Divide into two chambeies in the box, battery soft bag chamber and BMS battery management module installation cavity, compare with the battery box of low capacity, a BMS battery management module installation cavity has been increased, and the volume in battery soft bag chamber is also bigger, can hold more battery soft bag, the group battery of adaptation large capacity, just can set up BMS battery management module in this intracavity after increasing a BMS battery management module installation cavity alone, thereby make BMS battery management module can manage alone this battery box, reduce the data that need handle, set up heat conduction silica gel piece and heat dissipation aluminium pig simultaneously on BMS battery management module, still set up fin formula heat dissipation aluminum plate in the box, make BMS battery management module have higher heat-sinking capability, thereby avoid BMS management module overheated, guarantee UPS's life.

Preferably, the BMS battery management module is fixed with paired supports, a heat dissipation space is formed between the paired supports, the paired supports are fixed with the heat-conducting silica gel sheet, the surface of the heat-conducting silica gel sheet is fixed with the heat-dissipation aluminum block, and the shape of the heat-dissipation aluminum block is consistent with that of the heat-conducting silica gel sheet.

Preferably, the fin type heat dissipation aluminum plate facing the battery soft pack is mounted on the BMS battery management module, and the fin faces the battery soft pack; and a heat-conducting silica gel sheet is fixed on the inner side surface of the box body panel, and the fin type heat-radiating aluminum plate clamps the heat-conducting silica gel sheet and is fixed on the box body panel.

Preferably, the side edges of the fin type heat dissipation aluminum plate and the heat conduction silicon sheet fixed on the box body panel are provided with notches, the positions of the notches correspond to the positions of the indicating lamps on the BMS battery management module, and the heat conduction silicon sheet covers the fin ends of the fin type heat dissipation aluminum plate.

Preferably, an EVA cotton plate is arranged between the two sides of the battery soft package and the inner side surface of the box body, the upper surface of the battery soft package is covered with an epoxy plate, a heating film is attached to one surface, facing the battery soft package, of the epoxy plate, an EVA cotton sliver is arranged above the epoxy plate, two pressing strips are fixed on the upper portion of the box body, and the positions of the pressing strips correspond to the positions of the EVA cotton sliver.

Preferably, the pressing strips are divided into two types, one type is a groove-shaped pressing strip, the bottom surface of the groove-shaped pressing strip is in contact with the EVA cotton sliver, the other type is a Z-shaped pressing strip, one side edge of the Z-shaped pressing strip forms an upper blocking piece of the battery soft package, folding edges are arranged at two ends of the pressing strip, and the pressing strip is fixed with two sides of the box body through the folding edges.

Preferably, openings are formed in two sides of the box body, the handle assembly is installed at the openings, and the surface of the handle assembly is flush with the side face of the box body. After the BMS battery management module installation cavity is added to the box body, the size of the box body is increased, and therefore the handle assembly is arranged on the side edge of the box body.

Preferably, the handle assembly comprises a mounting plate with a concave cavity in the middle, a fixing folded plate is fixed on the mounting plate, a rotating gap is formed between the fixing folded plate and the concave cavity of the mounting plate, an annular handle is arranged in the rotating gap, and the shape of the handle is matched with the shape of the concave cavity.

The utility model has the beneficial effects that: divide into two chambeies in the box, battery soft bag chamber and BMS battery management module installation cavity, compare with the battery box of low capacity, a BMS battery management module installation cavity has been increased, and the volume in battery soft bag chamber is also bigger, can hold more battery soft bag, the group battery of adaptation large capacity, just can set up BMS battery management module in this intracavity after increasing a BMS battery management module installation cavity alone, thereby make BMS battery management module can manage alone this battery box, reduce the data that need handle, set up heat conduction silica gel piece and heat dissipation aluminium pig simultaneously on BMS battery management module, still set up fin formula heat dissipation aluminum plate in the box, make BMS battery management module have higher heat-sinking capability, thereby avoid BMS management module overheated, guarantee UPS's life.

Drawings

FIG. 1 is a schematic diagram of one configuration of the present invention;

FIG. 2 is an exploded view of the present invention;

in the figure: 1. the upper cover, 2, the main tank, 3, the mounting panel, 4, the handle, 5, the cavity, 6, fixed folded plate, 7, the handle subassembly, 8, the hangers, 9, the panel, 10, the epoxy board, 11, the EVA silver, 12, Z type layering, 13, the cotton board of EVA, 14, keep off down, 15, fin formula heat dissipation aluminum plate, 16, heat conduction silica gel piece, 17, the aluminium billet that dispels the heat, 18, trompil, 19, BMS battery management module, 20, the heating film, 21, the soft package of battery, 22, last fender spare, 23, the cell type layering.

Detailed Description

The utility model is further described by the following specific embodiments in conjunction with the accompanying drawings.

Example (b):

as shown in fig. 1 and fig. 2, the intelligent lithium battery pack of BMS comprises a box body, a battery soft package 21 arranged in the box body, and a BMS battery management module 19 arranged in a battery.

The box body comprises a main box 2, an upper cover 1 and a panel 9. The main incasement divide into two chambeies, is battery soft bag chamber and BMS battery management module installation cavity respectively, sets up down in the main bottom of the case portion and keeps off 14, keeps off down that the piece is in between battery soft bag chamber and the BMS battery management module installation cavity, keeps off two down and keeps off the piece phase separation, sets up handle assembly 7 in the position that the box both sides correspond BMS battery management module installation cavity.

Be fixed with mated support on the BMS battery management module, form the heat dissipation space between the mated support, be fixed with the heat conduction silica gel piece on the mated support, heat conduction silica gel piece fixed surface heat dissipation aluminium pig 17, the shape of heat dissipation aluminium pig is unanimous with the shape of heat conduction silica gel piece. BMS battery management module is provided with fin formula heat dissipation aluminum plate towards the soft packet of side of battery, and fin formula heat dissipation aluminum plate's fin is towards the soft packet of one side of battery. The inner side surface of the box body panel is fixed with a heat conduction silica gel sheet 16, and the fin type heat dissipation aluminum plate 15 clamps the heat conduction silica gel sheet and is fixed on the panel. The side edges of the fin type heat dissipation aluminum plate and the heat conduction silica gel sheet which are fixed on the box body panel are provided with notches, the positions of the notches correspond to the positions of the indicating lamps on the BMS battery management module, and the heat conduction silica gel sheet covers the fin ends of the fin type heat dissipation aluminum plate.

Be provided with the cotton board 13 of EVA between the both sides of battery soft package and the inboard surface of box, the upper surface of battery soft package covers epoxy board 10, and the epoxy board is attached with heating film 20 towards the soft package's of battery one side, and the epoxy board top is provided with two EVA silver 11, and box upper portion is fixed with two layering, and the position of layering corresponds with the position of EVA silver. The pressing strips are divided into two types, one type is a groove-shaped pressing strip 23, the bottom surface of the groove-shaped pressing strip is in contact with an EVA cotton strip, the other type is a Z-shaped pressing strip 12, one side edge of the Z-shaped pressing strip forms an upper baffle piece 22 of the battery soft package, folding edges are arranged at two ends of the pressing strip, and the pressing strip is fixed with two sides of the box body through the folding edges.

The box both sides are provided with trompil 18, and the handle subassembly is installed in trompil department, and the surface of handle subassembly is the parallel and level mutually with the side of box. The handle assembly comprises a mounting plate 3 with a concave cavity 5 in the middle, a fixed folded plate 6 is fixed on the mounting plate, a rotating gap is formed between the fixed folded plate and the concave cavity of the mounting plate, an annular handle 4 is arranged in the rotating gap, and the shape of the handle is matched with the shape of the concave cavity. Hanging lugs 8 are further fixed on the two sides of the box body, and mounting holes are formed in the hanging lugs.

The side of box panel is provided with the opening, and BMS battery management module corresponds the open-ended position and is provided with the interface, and rotatable safety cover plate is covered at the kneck.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a BMS intelligence lithium cell group, a serial communication port, the power distribution box comprises a box body, set up battery soft packet of cloth (21) in the box, set up BMS battery management module (19) in the battery, be divided into two chambeies in the box, be battery soft packet of cloth chamber and BMS battery management module installation cavity respectively, and the position that corresponds BMS battery management module installation cavity in box both sides sets up handle subassembly (7), set up heat conduction silica gel piece and heat dissipation aluminium pig on the BMS battery management module, BMS battery management module is provided with fin formula heat dissipation aluminum plate (15) towards battery soft packet of cloth side, the battery panel inboard is provided with fin formula heat dissipation aluminum plate.

2. The BMS intelligent lithium battery pack according to claim 1, wherein a pair of brackets are fixed on the BMS battery management module, a heat dissipation space is formed between the pair of brackets, the heat-conducting silicone sheet (16) is fixed on the pair of brackets, the heat-dissipation aluminum block (17) is fixed on the surface of the heat-conducting silicone sheet, and the shape of the heat-dissipation aluminum block is consistent with the shape of the heat-conducting silicone sheet.

3. The intelligent lithium battery pack of BMS as claimed in claim 1, wherein the finned heat dissipating aluminum plate facing the soft pack of battery is mounted on the BMS battery management module with the fins facing the soft pack of battery; and a heat-conducting silica gel sheet is fixed on the inner side surface of the box body panel, and the fin type heat-radiating aluminum plate clamps the heat-conducting silica gel sheet and is fixed on the box body panel.

4. The BMS intelligent lithium battery pack as claimed in claim 3, wherein the fin type heat dissipation aluminum plate fixed on the case panel and the heat conductive silicone sheet are provided with notches at their side edges, the positions of the notches correspond to the positions of the indicator lamps on the BMS battery management module, and the heat conductive silicone sheet covers the fin ends of the fin type heat dissipation aluminum plate.

5. The BMS intelligent lithium battery pack according to claim 1, 2, 3 or 4, wherein EVA cotton plates (13) are arranged between two sides of the battery soft pack and the inner side surface of the box body, the upper surface of the battery soft pack is covered with an epoxy plate, a heating film is attached to one surface of the epoxy plate facing the battery soft pack, an EVA cotton sliver is arranged above the epoxy plate, two pressing strips are fixed on the upper part of the box body, and the positions of the pressing strips correspond to the positions of the EVA cotton sliver.

6. The BMS intelligent lithium battery pack as claimed in claim 5, wherein the pressing strips are divided into two types, one type is a groove-shaped pressing strip (23), the bottom surface of the groove-shaped pressing strip is in contact with the EVA cotton sliver, the other type is a Z-shaped pressing strip (12), one side edge of the Z-shaped pressing strip forms an upper stop of the battery soft pack, folding edges are arranged at two ends of the pressing strip, and the pressing strip is fixed with two sides of the box body through the folding edges.

7. The BMS intelligent lithium battery pack as claimed in claim 1, 2, 3 or 4, wherein openings (18) are formed at both sides of the case, the handle assembly is installed at the openings, and the surface of the handle assembly is flush with the side surface of the case.

8. The BMS intelligent lithium battery pack as claimed in claim 7, wherein the handle assembly comprises a mounting plate (3) with a concave cavity (5) in the middle, a fixing folded plate (6) is fixed on the mounting plate, a rotating gap is formed between the fixing folded plate and the concave cavity of the mounting plate, an annular handle (4) is arranged in the rotating gap, and the shape of the handle is matched with the shape of the concave cavity.