High-integration CTP modular battery pack

Abstract

The utility model discloses a high-integration CTP modular battery pack which comprises a box body, a box cover is arranged on the box body, a CTP module is arranged in the box body, the CTP module is formed by directly assembling a plurality of battery cells, and an integrated acquisition system is arranged on the CTP module; the front end of the CTP module is fixed by a front beam, the rear end of the CTP module is fixed by a rear beam, the front beam and the rear beam are fixed in the box body, a plurality of holes are formed in the front beam and the rear beam, pressing strips are arranged at the tops of the front beam and the rear beam, and a plurality of wiring grooves are formed in the pressing strips at the top of the front beam; the battery pack is simple in structure, the CTP modular structural design is used, the side walls of the box body are used for replacing a traditional module end plate, a traditional battery module form is omitted, battery cells are directly assembled into a pack form, the whole pack of the battery pack is welded, the battery cells are directly assembled into the case on the premise that the overall mechanical strength and the electrical safety of the battery pack are guaranteed, and the battery pack is convenient to assemble and disassemble. And the assembly is simple and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technology field of multi -pole lug battery core combines, concretely is a kind of high integration CTP modular battery pack. BACKGROUND

[0002] The current society has increasingly high requirements for green energy development, and various energy storage devices are widely used in various fields. In recent years, communication base stations, data centers and other standby power supplies, UPS and other lithium batteries have become a trend. Lead-acid, combined with the rise of household energy storage products, customers' requirements for standby power supply, small household energy storage area, energy density and maintainability are increasing. In the prior art, the cabinet type 19-inch standby power supply is mostly in the form of module + case, which has large volume, low space utilization and low energy density. Most of the existing energy storage devices first assemble the cells into modules through end plates / steel belts / packing belts, etc. Then the module is fixed by mechanical form. The number of module components increases, and the production process is complex and the production efficiency is low. SUMMARY

[0003] The utility model discloses a kind of high integration CTP modular battery pack, to solve the problem raised in the above background technology. To achieve the above purpose, the utility model provides the following technical scheme: a kind of high integration CTP modular battery pack, including box, the box is equipped with lid, CTP module is equipped in the box, the CTP module is directly assembled by multiple cells, integrated acquisition system is equipped on the CTP module;

[0004] The front end of the CTP module is fixed by the front beam, and the rear end is fixed by the rear beam. The front beam and the rear beam are fixed in the box. Multiple holes are formed in the front beam and the rear beam. The top of the front beam and the rear beam is provided with a pressing strip. Multiple wiring grooves are formed in the pressing strip on the top of the front beam.

[0005] Preferably, the height of the front beam and the rear beam exceeds the height of the integrated acquisition system.

[0006] Preferably, the bottom of the box is paved with an insulating layer. The insulating layer is also arranged between the CTP module and the front beam, the rear beam and the side of the box. The insulating layer plays the role of insulation, buffering and heat insulation.

[0007] Preferably, the box is provided with a battery management system assembly.

[0008] Preferably, the box is provided with a battery management system assembly.

[0009] Compared with the prior art, the utility model discloses the beneficial effect is: the utility model discloses novel design, uses CTP modular structure design, utilizes the side wall of box to replace traditional module end plate, cancels traditional battery module form, realizes by the direct assembly of electric core (Cell) into battery group (Pack) form, realizes battery group whole package welding, under the premise of guaranteeing the overall mechanical strength of battery group, electrical safety, directly the electric core is assembled into the machine case, and the assembly is simple, convenient, battery group can realize whole package welding, reduces production procedure, improves production efficiency high, greatly improves the space utilization of battery box, improves the energy density of battery group. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is whole structure schematic diagram of the utility model;

[0011] Figure 2 It is the utility model explosion map;

[0012] Figure 3 It is the utility model inside structure schematic diagram of box;

[0013] In the drawing, box-1, lid-11, CTP module-2, electric core-21, integrated acquisition system-3, front beam-41, rear beam-42, hole mouth-43, pressing strip-44, wiring slot-45, battery management system assembly-5, insulating layer-6. DETAILED DESCRIPTION

[0014] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0015] Please refer to Figure 1 The utility model provides a kind of technical scheme: a kind of high integration CTP modular battery group, including box 1, the box 1 is equipped with lid 11, the box 1 is equipped with CTP module 2, the CTP module 2 is directly assembled by multiple electric cores 21, by CTP modular structure design, utilizes the side wall of box 1 to replace traditional module end plate, cancels traditional battery module form, realizes by the direct assembly of electric core (Cell) into battery group (Pack) form, realizes battery group whole package welding, under the premise of guaranteeing the overall mechanical strength of battery group, electrical safety, directly the electric core 21 is assembled into box 1, and the assembly is simple, convenient.

[0016] The CTP module 2 is laid on the integrated acquisition system 3, the box body 1 is provided with a battery management system assembly 5, the integrated acquisition system can adopt a CCS integrated design (busbar and acquisition line are integrated), and can also use a split type (busbar is separately welded, and acquisition wire harness is subsequently screwed / welded / riveted fastened); the battery pack is welded as a whole, the module assembly process is reduced, and the production efficiency is improved.

[0017] The front end of the CTP module 2 is fixed by a front beam 41, and the rear end is fixed by a rear beam 42, the front beam 41 and the rear beam 42 are fixed in the box body 1, a plurality of openings 43 are formed in the front beam 41 and the rear beam 42, the excess material is removed by the openings 43, so as to reduce the overall weight of the box body, and a pressing strip 44 is arranged on the top of the front beam 41 and the rear beam 42.

[0018] During installation, the rear beam 42 is first installed in the box body 1, then the battery core 21 is assembled in the box body 1 to form the CTP module 2, and finally the front beam 41 is installed, so that the pressing strip 44 on the front beam 41 and the rear beam 42 restricts the freedom of the battery core X, Y and Z in three directions, and the installation of the CTP module 2 is stable.

[0019] A plurality of wiring grooves 45 are arranged on the pressing strip 44 on the top of the front beam 41, the wiring grooves 45 can facilitate wiring, and the wiring arrangement and fixation are facilitated, the neatness and manageability of the wiring are improved, the wiring can be fixed, the wiring is prevented from loosening and shifting due to vibration and bumping during vehicle driving, the risk of wiring abrasion, pulling and even breaking is reduced, and the reliability and stability of the wiring connection are ensured.

[0020] The height of the front beam 41 and the rear beam 42 exceeds the height of the integrated acquisition system 3, so as to ensure that the integrated acquisition system 3 and the box cover 11 have sufficient electrical clearance and creepage distance, and also ensure that the battery pack can ensure electrical safety after being stressed in the Z direction.

[0021] The bottom of the box 1 is paved with an insulation layer 6, and the insulation layer 6 is arranged between each battery cell 21, between the CTP module 2 and the front beam 41, the rear beam 42 and the side of the box 1. The insulation layer 6 plays the roles of insulation, buffering and heat insulation. Specifically, the insulation role is to prevent short circuit, effectively isolate the CTP module 2 from the shell of the box 1, each battery cell 21 and other metal components, avoid short circuit caused by direct contact of positive and negative poles due to line damage, battery leakage and other conditions, and thus ensure the normal operation and safety of the battery system; the buffering role is to absorb and buffer the vibration in the transportation and use process through the insulation layer 6, reduce the influence of vibration on the battery module, prevent the internal structure of the battery module from being damaged, the connection from being loose and other problems caused by long-term vibration impact, and prolong the service life of the battery; the heat insulation role is to effectively reduce the heat generated by the battery from being dissipated to the outside of the box through the insulation layer 6, and also prevent the heat from the outside environment from entering the battery box, which helps to maintain a relatively stable temperature environment in the battery box, makes the battery work in a suitable temperature range, and improves the charging and discharging efficiency and performance of the battery.

[0022] The box 1 is provided with a reinforcing layer to resist the expansion force of the battery cell in the life cycle.

[0023] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A highly integrated CTP modular battery pack, comprising a housing (1), wherein the housing (1) is provided with a housing cover (11), characterized in that: The housing (1) is equipped with a CTP module (2), which is directly assembled from multiple battery cells (21). The CTP module (2) is equipped with an integrated acquisition system (3). The front end of the CTP module (2) is fixed by the front beam (41) and the rear end is fixed by the rear beam (42). The front beam (41) and the rear beam (42) are both fixed inside the box (1). Multiple openings (43) are provided on the front beam (41) and the rear beam (42). Pressure strips (44) are provided on the top of the front beam (41) and the rear beam (42). Multiple cable routing grooves (45) are provided on the pressure strip (44) on the top of the front beam (41).

2. The highly integrated CTP modular battery pack according to claim 1, characterized in that: The height of the front beam (41) and the rear beam (42) exceeds the height of the integrated acquisition system (3).

3. The highly integrated CTP modular battery pack according to claim 2, characterized in that: The bottom of the box (1) is covered with an insulating layer (6), and an insulating layer (6) is provided between each cell (21). An insulating layer (6) is also provided between the CTP module (2) and the front beam (41), the rear beam (42), and the side of the box (1). The insulating layer (6) plays the role of insulation, buffering and heat insulation.

4. The highly integrated CTP modular battery pack according to claim 3, characterized in that: The housing (1) is equipped with a battery management system assembly (5).

5. The highly integrated CTP modular battery pack according to claim 4, characterized in that: The box (1) is equipped with a reinforcing layer.

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