CN208127264U - A kind of Soft Roll lithium ion start and stop battery system - Google Patents

Abstract

A kind of entitled Soft Roll lithium ion start and stop battery system of the utility model.Belong to lithium ion start and stop power technique fields.It mainly solves the problems, such as existing system there are volume and weights that all bigger, mounting process is complicated and heat dissipation performance is poor.It is mainly characterized by：Including electrical module and battery module；Wherein, the battery module includes carrier, soft pack cell, radiating aluminium sheet, aluminum profile shell and bottom plate, and radiating aluminium sheet is set between soft pack cell and outside, and carrier is equipped with jack copper bar；The electrical module is made of plastic top cover, electronic component, contact pin copper bar and water proof rubber pad, and plastic top cover is equipped with positive and negative electrode output terminal and communication connector；The contact pin copper bar and jack copper bar are cooperation to slotting connection.The utility model has the characteristics that small in size, reliability and strong, easy to assembly, the integrated precision of vibration resistance height, conveyance capacity and efficiency are relatively high, is mainly used for Soft Roll lithium ion start and stop battery system.

Description

A soft pack lithium-ion start-stop battery system

technical field

The utility model belongs to the technical field of lithium-ion start-stop power supply, in particular to a novel soft-pack lithium-ion start-stop battery system.

Background technique

In recent years, my country's automobile industry has developed rapidly, and the number of domestic automobiles has also continued to increase. The country has issued a number of laws and regulations related to automobile energy conservation, and clearly stipulates that the average fuel consumption of passenger cars will be reduced to 5L/100KM in 2020. Therefore, loading the start-stop power supply has become one of the effective means for OEMs to reduce fuel consumption.

Traditional lead-acid batteries cannot meet the requirements of continuous high-rate charge-discharge and cycle life, and lithium-ion start-stop battery systems have become a development trend. At present, there are few researches on integrated technology specifically for lithium-ion start-stop. Some enterprises or university research laboratories use lithium batteries to form modules and install them in the start-stop battery system housing. The volume and weight are relatively large, and the installation process is complicated. Moreover, heat exchange is realized through air between the module and the housing, which greatly reduces the performance of the product and does not reflect its superiority.

Contents of the invention

According to the requirement of small volume, light weight and high heat dissipation requirements for start-stop power supply, and the soft package power battery is not easy to be fixed, and scratches, pits and creases are very easy to appear in the utility model, a new type of soft battery is designed. Lithium-ion start-stop battery system included.

The technical solution of the utility model is: a soft-pack lithium-ion start-stop battery system, which is characterized in that it includes an electrical module and a battery module; The profile shell and the bottom plate, the heat dissipation aluminum sheet is arranged between the soft-packed batteries and outside, and the carrier is provided with a socket copper bar; the electrical module is composed of a plastic top cover, electronic parts, pin copper bars and waterproof rubber pads, The plastic top cover is provided with positive and negative output terminals and a communication connector; the pin copper bar and the socket copper bar are mated mating connections. The shell of the product is directly used as the supporting and fixing parts of the soft pack, which saves the materials for adding the supporting parts of the soft pack cell module. This design is smaller and lighter than the industrial products, which greatly improves the superiority of the soft pack battery. The battery module and the electrical module directly adopt the plug-in design of pins and jacks. This design reduces the lead wires connecting the battery module and the electrical module, saves system space, and increases operational convenience.

The soft-packed electric core and the heat-dissipating aluminum sheet described in the technical solution of the utility model are installed in a box composed of an aluminum profile shell and a bottom plate for placing the electric core, and between the soft-packed electric core and the heat-dissipating aluminum sheet, the heat-dissipating aluminum sheet It is filled with heat-conducting glue between the shell and the aluminum profile. When the battery system is started and stopped, each soft-packed battery cell is in contact with the heat-dissipating aluminum sheet, and the middle is filled with heat-conducting glue to increase the heat dissipation efficiency of the battery cell; the shape of the carrier is the same as that of the aluminum The port of the profile shell and the end of the soft-packed battery are matched, the positive and negative tabs of the soft-packed battery are inserted into the carrier, and the positive and negative tabs are respectively connected to the corresponding jack copper bars.

The electronic parts described in the technical solution of the utility model are fixed by the studs injected into the top cover, and the studs are connected with the connecting copper bars on the electronic parts; the ports of the top cover are provided with waterproof grooves, waterproof rubber The lower part of the pad is installed in the waterproof groove, which can ensure the system's IP67 is more reliable and stable.

The positive and negative output terminals described in the technical solution of the utility model are studs injected into the top cover.

The top cover described in the technical solution of the utility model is injection-molded with copper bars connected with studs and pin copper bars for fixing electronic parts.

The three outer surfaces of the aluminum profile shell described in the technical solution of the utility model are provided with cooling fins. The shell is designed with aluminum profile with heat dissipation fins, which increases the heat dissipation area of the shell and improves the heat dissipation effect of the system.

The communication connector described in the technical solution of the utility model is injection-molded in the top cover. The top cover is made of plastic and inlaid, which integrates the positive and negative output terminals of the system, communication connectors, studs for fixing electronic parts, and connecting copper bars. This design improves the stability and sealing of the product. The volume of the system is greatly reduced and the installation process is simplified.

In the technical solution of the utility model, the soft-packed battery core and the positive and negative tabs are connected by laser welding, and the middle series part does not need copper bars to overlap and over-current. This design improves the stability of the tab connection. , and save costs and improve operational convenience.

The aluminum profile shell and the bottom plate (12) described in the technical solution of the utility model are cold-welded by CMT to form a box for placing batteries. mold cost.

The effect of the utility model is that the volume and weight of the system are greatly reduced and the performance of the product is improved through reasonable cooperation of various components. The battery module is designed by combining the module and the shell. After the soft-packed battery cell and the heat-dissipating aluminum sheet are laminated, the aluminum alloy shell is filled with glue to seal, which increases the thermal conductivity between the battery cell and the shell, and improves the heat dissipation capacity of the system. , prolong the life of the system and reduce accidents caused by high heat. The high-voltage wiring harness inside the lithium-ion start-stop battery system is replaced by pin copper bars and socket copper bars, which saves product wiring space, greatly improves the volumetric energy density of the product, and improves the installation efficiency of the product. Remove the module structure of the soft-packed battery, directly place the soft-packed battery vertically in the battery box, and fix the battery cell and the heat-dissipating aluminum sheet with high thermal conductivity potting glue. This solution effectively uses high thermal conductivity potting glue to seal the battery cell and The air substitution between the shells improves the overall heat conduction efficiency of the product.

The utility model is mainly used in a soft pack lithium ion start-stop battery system.

Description of drawings

Figure 1 is a schematic diagram of a single soft-pack lithium-ion start-stop battery system.

Figure 2 is a schematic diagram of the explosion of a single soft-pack lithium-ion start-stop battery system.

Figure 3 is a schematic diagram of the electrical modules in the soft-pack lithium-ion start-stop battery system.

Fig. 4 is a schematic diagram of a battery module in a soft-pack lithium-ion start-stop battery system.

Figure 5 is a schematic diagram of the explosion of the battery module in the soft-pack lithium-ion start-stop battery system.

In the figure: 1. Electrical module; 2. Battery module; 3. Pin copper bar; 4. Jack copper bar; 5. Plastic top cover; 6. Electronic parts; 7. Waterproof rubber pad; 8. Carrier; 9. Soft package battery; 10. Heat dissipation aluminum sheet; 11. Aluminum shell; 12. Bottom plate.

Detailed ways

In Fig. 1 and Fig. 2, a soft pack lithium-ion start-stop battery system of the present invention includes an electrical module 1 and a battery module 2. Among them, the electrical module 1 and the battery module 2 are fixed together by screws, and the internal electricity is connected by a pair of pin copper bars 3 and socket copper bars 4. Finally, the positive and negative output terminals of the top cover 5 in the electrical module 1 connect the product The positive and negative leads. The pin copper bar 3 and the jack copper bar 4 can be installed without affecting the full contact of the pin copper bar 3 and the jack copper bar 4 .

In Fig. 1 and Fig. 3, the electrical module 1 is composed of four parts: a plastic top cover 5, an electronic part 6, a copper pin bar 3 and a waterproof rubber pad 7, and the electronic part 6 is mainly used to meet the control requirements of the start-stop battery system. The electronic parts 6 are integrated into the fixing studs in the top cover 5, and the top cover 5 is injection-molded with copper bars connected with the studs fixing the electronic parts 6 and the pin copper bars 3, and the connecting copper bars realize structural and electrical connections. This design can not only save space, but also ensure the production efficiency of the product, and can use automatic tools, which can further improve the consistency and stability of the product. The port of the top cover 5 is provided with a waterproof groove, and the protruding part of the waterproof rubber pad 7 is placed in the waterproof groove. When the electrical module 1 is fixed with the battery module 2, a sealed boss is formed inside the sealing part, which improves the reliability of the seal. , and a special explosion-proof design is designed inside the electrical module 1, which increases the safety of the system. The positive and negative output terminals of the top cover 5 are studs injected into the top cover 5, which are output in the form of studs. When fixing, the electrical equipment can be directly fixed on the studs by screws, which can ensure the firmness of the fixation. It can also ensure full contact between electrical equipment and the start-stop battery system. The top cover 5 is provided with positive and negative output terminals and communication connectors, and the communication connectors are injection molded in the top cover 5 . The electronic parts 6 are fixed by the studs injected into the top cover 5 , and the studs are connected with the connecting copper bars on the electronic parts 6 .

In Fig. 4 and Fig. 5, the battery module 2 is mainly composed of five parts including a carrier 8, a soft-packed battery cell 9, a heat-dissipating aluminum sheet 10, an aluminum profile casing 11 and a bottom plate 12. The gap between the heat-dissipating aluminum sheet 10 and the soft-packed battery 9 is filled with heat-conducting glue, and the heat-dissipating aluminum sheet 10 conducts the heat on the surface of the soft-packed battery 9 to the side of the product in time to improve the heat dissipation efficiency of the product. The aluminum profile shell 11 and the bottom plate 12 are cold-welded by CMT to form a box for placing batteries. After placing the batteries inside, the potting glue with high thermal conductivity is filled. This design can fill the air gap between the heat-dissipating aluminum sheet and the shell to increase the thermal conductivity. Furthermore, the electric core can be fixed in the casing to protect the electric core from being damaged during use, and the size of the product can be greatly reduced. The carrier 8 is provided with a jack copper bar 4 , and the pin copper bar 3 and the jack copper bar 4 are mated mating connections. The three outer sides of the aluminum profile shell 11 are provided with heat dissipation fins, the shape of the carrier 8 is matched with the port of the aluminum profile shell 11 and the end of the soft-packed battery 9, and the positive and negative ears of the soft-packed battery 9 are inserted into the carrier 8 Among them, the positive and negative tabs are connected to the corresponding jack copper bars 4 respectively. The soft pack cell 9 and the positive and negative tabs are connected by laser welding, and the carrier 8 is used as a support for welding during the laser welding of the tabs to ensure the reliability of product welding. The negative lead is connected to the electrical module.

The utility model can ensure the minimization of the volume of the system, and can also ensure the reliability of the connection, the anti-vibration performance and the flow-through capacity, and the assembly is convenient, and the automatic tool can be realized, and the integration precision and efficiency are relatively high.

The utility model is used in the process of lithium-ion start-stop battery system. The specific usage method of the battery module 2: (1) connect the single soft-packed battery cell through the heat-conducting glue and the heat-dissipating aluminum sheet 10 to form a simple small module The surface of the heat dissipation aluminum sheet 10 is surface treated to ensure the insulation of the heat dissipation aluminum sheet; (2) Place the small module in the aluminum profile shell 11, the carrier 8 is fixed in the slot in the aluminum profile shell 11, and the cell protruding (3) The cells are connected in series by welding, and the total positive and negative positions of the cell module and the inlaid copper bars of the carrier are welded together; (4) Install the bottom plate 12, And the base plate 12 and the aluminum profile shell 11 are connected together by CMT cold welding, and the potting glue is injected into the aluminum profile shell 11 to fix the battery cell in the battery module, and the battery module assembly is completed, as shown in Fig. 4 and Fig. 5 .

The utility model is used in the process of lithium-ion start-stop battery system. The specific use method of the electrical module 1: (1) fix the electronic parts 6 and the copper pin row 3 in the plastic top cover 5 through the fixing studs and the positioning grooves, Use nuts to tighten and fix; (2) The waterproof rubber pad 7 is fixed on the top cover through the groove of the plastic top cover 5, as shown in Figure 3.

The utility model is used in the process of lithium-ion start-stop battery system. The specific system usage method: electrically connect the electrical module 1 and the battery module 2 through pins and jacks, and connect the electrical module 1 and the battery module through screws. 2 The two parts are locked and fixed.

A new type of soft-pack lithium-ion start-stop battery system proposed in this method can not only ensure the reliability and vibration resistance of the system fastening, but also ensure the effective insulation between batteries, and can reduce the volume of the system and increase its Heat dissipation efficiency, easy operation, semi-automatic equipment such as assembly fixtures can be used, small size, light weight and convenient maintenance, etc. It is a new type of soft-pack lithium-ion start-stop battery system integration method with strong operability.

Claims (9)

1. A soft-pack lithium-ion start-stop battery system, characterized in that it includes an electrical module (1) and a battery module (2); wherein, the battery module (2) includes a carrier (8), a soft-pack battery ( 9), the heat dissipation aluminum sheet (10), the aluminum profile shell (11) and the bottom plate (12), the heat dissipation aluminum sheet (10) is arranged between and outside the soft package battery (9), and the carrier (8) is provided with a plug Hole copper bar (4); the electrical module (1) is composed of plastic top cover (5), electronic parts (6), pin copper bar (3) and waterproof rubber pad (7), the plastic top cover (5) Positive and negative output terminals and communication connectors are provided on the top; the pin copper bar (3) and the jack copper bar (4) are mated mating connections. 2. A soft-pack lithium-ion start-stop battery system according to claim 1, characterized in that: the soft-pack battery cell (9) and the heat-dissipating aluminum sheet (10) are installed in the aluminum profile shell (11) and the bottom plate (12) form a box for placing the battery cells, and between the soft-packed battery cells (9) and the heat dissipation aluminum sheet (10), and between the heat dissipation aluminum sheet (10) and the aluminum profile casing (11) are filled with thermally conductive glue The shape of the carrier (8) is matched with the port of the aluminum profile shell (11) and the end of the soft-packed battery cell (9), and the positive and negative pole ears of the soft-packed battery cell (9) are inserted into the carrier (8), The positive and negative tabs are respectively connected to the corresponding jack copper bars (4). 3. A soft-pack lithium-ion start-stop battery system according to claim 1 or 2, characterized in that: the electronic parts (6) are fixed by studs injected into the top cover (5), and the The stud is connected with the connecting copper bar on the electronic part (6); the port of the top cover (5) is provided with a waterproof groove, and the lower half of the waterproof rubber pad (7) is installed in the waterproof groove. 4. A soft-pack lithium-ion start-stop battery system according to claim 1 or 2, characterized in that: the positive and negative output terminals are studs injected into the top cover (5). 5. A soft-pack lithium-ion start-stop battery system according to claim 1 or 2, characterized in that: the top cover (5) is injection molded with studs and pins for fixing electronic parts (6) Copper bars connected by copper bars (3). 6. A soft-pack lithium-ion start-stop battery system according to claim 1 or 2, characterized in that: the three outer surfaces of the aluminum profile housing (11) are provided with cooling fins. 7. A soft-pack lithium-ion start-stop battery system according to claim 1 or 2, characterized in that: the communication connector is injection-molded in the top cover (5). 8. A soft-pack lithium-ion start-stop battery system according to claim 1 or 2, characterized in that: the soft-pack battery cell (9) is connected to the positive and negative tabs by laser welding. 9. A soft-pack lithium-ion start-stop battery system according to claim 1 or 2, characterized in that: the aluminum profile shell (11) and the bottom plate (12) are cold-welded by CMT to form a box for placing batteries .