Cylindrical battery integration device

Abstract

The utility model belongs to the technical field of cylindrical battery structures, and particularly relates to a cylindrical battery integration device. The battery pack is composed of a shell, a lower structural adhesive, a cylindrical battery, an upper structural adhesive and a CCS assembly, wherein the shell comprises a lower shell, a middle shell and an upper shell; a boss is arranged on the upper portion of the lower shell, a plurality of first grooves are formed in the upper surface of the boss, first vertical faces are arranged at the ends of the first grooves, and first insulating strips perpendicular to the first vertical faces are arranged on the outer sides of the first vertical faces. A plurality of second grooves are formed in the upper surface of the middle shell, second vertical faces are arranged at the ends of the second grooves, and protruding second insulating strips are arranged on the second vertical faces; the CCS assembly is arranged on the middle shell, and the upper shell is buckled at the tops of the CCS assembly and the middle shell and is connected with the lower shell; according to the cylindrical battery integrated device, the safety of the manufacturing process of the cylindrical battery integrated device with the positive electrode and the negative electrode on the same side is improved, meanwhile, the cylindrical battery is structurally protected, and the collision and extrusion safety is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cylindrical battery structures, and particularly relates to a cylindrical battery integration device. Background Art

[0002] Lithium-ion or sodium-ion batteries have the advantages of light weight, large energy storage, high power, no pollution, long service life, small self-discharge coefficient, wide temperature adaptation range, etc. Therefore, they are gradually favored by people and have gradually replaced other traditional batteries in the fields of energy storage and power batteries.

[0003] Cylindrical batteries have the characteristics of high production efficiency, low production cost, good product consistency, etc. Compared with traditional cylindrical batteries with pole columns at both ends, cylindrical batteries with positive and negative electrodes at one end have the advantages of simple structure, high module assembly and welding efficiency. Generally speaking, the pole column of the cover plate assembly is of the first polarity, and the light cover plate of the cover plate assembly is of the second polarity. Since both the first polarity and the second polarity are on the cover plate assembly and are relatively close, during the assembly and welding process of the connection row, the connection row is very likely to overlap on the first polarity and the second polarity, causing a dangerous situation of short circuit. At the same time, when the electrical device of the cylindrical battery undergoes extreme situations such as collision or extrusion, the cylindrical battery is easily deformed under pressure and triggers thermal runaway. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a cylindrical battery integration device to improve the safety of the manufacturing process of the cylindrical battery integration device with positive and negative electrodes on the same side, and at the same time provide structural protection for the cylindrical battery, effectively enhancing the safety of collision and extrusion.

[0005] The purpose of the utility model is realized as follows: A cylindrical battery integration device is composed of a housing, lower structural adhesive, cylindrical battery, upper structural adhesive, and CCS component. The housing includes a lower housing, an intermediate housing, and an upper housing;

[0006] A boss is provided on the upper part of the lower housing, a plurality of first grooves are provided on the upper surface of the boss, a first vertical surface is provided at the end of the first groove, and a first insulating strip perpendicular to the first vertical surface is provided on the outside of the first vertical surface;

[0007] A plurality of second grooves are provided on the upper surface of the intermediate housing, a second vertical surface is provided at the end of the second groove, and a protruding second insulating strip is provided on the second vertical surface;

[0008] The middle housing is connected to the lower housing by bolts. The lower and upper parts of the cylindrical battery are adhesively bonded to the space formed by the first groove and the second groove through the lower structural adhesive and the upper structural adhesive respectively. There are buffer and protection spaces on the upper, lower, left and right sides of the cylindrical battery, which can effectively improve the system safety in extreme cases such as collisions.

[0009] The CCS component is arranged on the middle housing, and the adjacent first connection row and second connection row on it are isolated in two areas by the first insulating strip and the second insulating strip, which can avoid the connection rows from contacting each other during installation and welding and causing a short circuit, greatly improving the safety of the manufacturing process of the cylindrical battery integration device with the positive and negative electrodes on the same side. The upper housing is buckled on the top of the CCS component and the middle housing and is connected to the lower housing.

[0010] Furthermore, the cylindrical battery is composed of a cover plate assembly and a housing. The cover plate assembly is composed of a pole column, a first explosion-proof valve and a light cover plate. A second explosion-proof valve is arranged at the bottom of the housing of the cylindrical battery.

[0011] Furthermore, the upper housing is composed of a box body bottom and a box body vertical edge. A pole column installation hole is arranged inside the upper housing, and positive and negative pole columns are arranged on the top of the CCS component.

[0012] Furthermore, a vertical edge is arranged at the edge of the lower housing, and a third groove is arranged at the edge of the box body vertical edge.

[0013] Furthermore, a plurality of first ribs are arranged in the first groove, and a plurality of second ribs are arranged in the second groove.

[0014] Furthermore, an avoidance hole is arranged on the first vertical surface.

[0015] Furthermore, a positioning pin and a nut are arranged on the boss, and a positioning hole and a fixing hole are arranged on the upper surface of the middle housing.

[0016] Furthermore, a connection row positioning pin is vertically arranged on the second vertical surface of the middle housing.

[0017] Furthermore, a plurality of vertically staggered reinforcing ribs are arranged on the box body bottom to strengthen the structural strength of the upper housing.

[0018] Advantages of the present utility model: For a cylindrical battery integration device of the present utility model, when installing and welding the connection rows, the adjacent first connection row and second connection row are isolated in two regions by the first insulating strip of the lower housing and the second insulating strip of the intermediate housing, which can prevent the connection rows from contacting each other during installation and welding and causing a short circuit, greatly improving the safety of the manufacturing process of the cylindrical battery integration device with the positive and negative electrodes on the same side; the cylindrical battery is placed in the space formed by the first groove of the lower housing and the second groove of the intermediate housing, and the lower and upper parts of the cylindrical battery are bonded in the above space by the lower structural adhesive and the upper structural adhesive respectively, forming a buffer and protection space around the cylindrical battery, which can effectively improve the system safety in extreme cases such as collision. Description of the Drawings

[0019] Figure 1 The figure shows an exploded structural schematic diagram of the cylindrical battery integration device of the present utility model.

[0020] Figure 2 The figure shows a schematic diagram of the cylindrical battery cover assembly of the present utility model.

[0021] Figure 3 The figure shows a schematic diagram of the second explosion-proof valve of the cylindrical battery housing of the present utility model.

[0022] Figure 4 The figure shows a schematic diagram of the lower housing of the present utility model.

[0023] Figure 5 The figure shows a schematic diagram of the intermediate housing of the present utility model.

[0024] Figure 6 The figure shows a schematic diagram of the upper housing of the present utility model.

[0025] Figure 7 The figure shows a schematic diagram of the assembly of the lower housing and the intermediate housing of the present utility model.

[0026] Figure 8 The figure shows a top view of the cylindrical battery integration device of the present utility model.

[0027] Figure 9 The figure shows a sectional view of the present utility model taken along the pole column. Detailed Embodiments

[0028] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] It should be noted that all directional indications (such as up-down, left-right, front-back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. The connection described herein can be a direct connection or an indirect connection.

[0031] As Figures 1-9 shown, a cylindrical battery integration device is composed of a housing, lower structural adhesive 2, cylindrical battery 3, upper structural adhesive 4, and CCS component 7. The housing includes lower housing 1, intermediate housing 5, and upper housing 8;

[0032] A boss 1-2 is provided on the upper part of the lower housing 1. A plurality of first grooves 1-3 are provided on the upper surface of the boss 1-2 for accommodating the cylindrical battery 3. A first vertical surface 1-5 is provided at the end of the first groove 1-3, and a first insulating strip 1-7 perpendicular to the first vertical surface 1-5 is provided on the outside of the first vertical surface 1-5;

[0033] A plurality of second grooves 5-2 are provided on the upper surface 5-1 of the intermediate housing 5 for accommodating the cylindrical battery 3. A second vertical surface 5-4 is provided at the end of the second groove 5-2, and a raised second insulating strip 5-5 is provided on the second vertical surface 5-4;

[0034] The intermediate housing 5 is connected to the lower housing 1 by bolts 6. The lower and upper parts of the cylindrical battery 3 are respectively bonded to the space formed by the first groove 1-3 and the second groove 5-2 by the lower structural adhesive 2 and the upper structural adhesive 4. The upper, lower, left, and right sides of the cylindrical battery 3 all have buffer and protection spaces, which can effectively improve the system safety in extreme cases such as collisions.

[0035] The CCS component 7 is disposed on the intermediate housing 5, and the adjacent first connection row 7-1 and second connection row 7-2 thereon are isolated in two regions by the first insulating strip 1-7 and the second insulating strip 5-5, which can prevent the connection rows from contacting each other during installation and welding, thus causing a short circuit, and greatly improving the safety of the manufacturing process of the cylindrical battery integration device with the positive and negative electrodes on the same side; the upper housing 8 is buckled on the top of the CCS component 7 and the intermediate housing 5 and is connected to the lower housing 1.

[0036] Further, in one embodiment, the cylindrical battery 3 is composed of a cover plate assembly 3-1 and a housing 3-2. The cover plate assembly 3-1 is composed of a pole column 3-3, a first explosion-proof valve 3-4 and a light cover plate 3-5. Among them, the pole column 3-3 is the first polarity of the cylindrical battery, and the light cover plate 3-5 is the second polarity of the cylindrical battery. A second explosion-proof valve 3-7 is provided on the bottom 3-6 of the housing of the cylindrical battery 3.

[0037] Further, in one embodiment, the upper housing 8 is composed of a box bottom 8-1 and a box vertical edge 8-2. A pole column mounting hole 8-5 is provided inside the upper housing 8, and positive and negative pole columns 7-3 are provided on the top of the CCS component 7; when the upper housing 8 is installed, the positive and negative pole columns 7-3 pass through the pole column mounting hole 8-5.

[0038] Further, in one embodiment, a vertical edge 1-1 is provided at the edge of the lower housing 1, and a third groove 8-4 is provided at the edge of the box vertical edge 8-2; when the upper housing 8 is installed, the vertical edge 1-1 is stuck in the third groove 8-4, and the lower housing 1 and the upper housing 8 can be fixed together by ultrasonic welding, laser welding or structural adhesive bonding to form a sealed space.

[0039] Further, in one embodiment, a plurality of first ribs 1-4 are provided in the first groove 1-3, and a plurality of second ribs 5-3 are provided in the second groove 5-2. The first ribs 1-4 and the second ribs 5-3 are used to support the cylindrical battery 3.

[0040] Further, in one embodiment, an avoidance hole 1-6 is provided on the first vertical surface 1-5 for avoiding the first explosion-proof valve 3-4.

[0041] Further, in one embodiment, a positioning pin 1-8 and a nut 1-9 are provided on the boss 1-2, and a positioning hole 5-7 and a fixing hole 5-8 are provided on the upper surface 5-1 of the intermediate housing 5; the positioning connection between the intermediate housing 5 and the lower housing 1 can be realized through the cooperation of the positioning pin 1-8 and the positioning hole 5-7, and the cooperation of the bolt 6 with the fixing hole 5-8 and the nut 1-9.

[0042] Further, in one embodiment, a connection row positioning pin 5-6 is vertically provided on the second vertical surface 5-4 of the middle housing 5, which can be used for positioning and connecting the connection row on the CCS component 7.

[0043] Further, in one embodiment, a plurality of vertically staggered reinforcing ribs 8-3 are provided on the bottom 8-1 of the box body, which are used to enhance the structural strength of the upper housing 8.

[0044] In summary, for a cylindrical battery integration device of the present utility model, when installing and welding the connection row, the adjacent first connection row 7-1 and second connection row 7-2 are isolated in two areas by the first insulating strip 1-7 of the lower housing 1 and the second insulating strip 5-5 of the middle housing 5, which can avoid the connection rows from contacting each other during installation and welding and causing a short circuit, greatly improving the safety of the manufacturing process of the cylindrical battery integration device with the positive and negative electrodes on the same side; the cylindrical battery 3 is placed in the space formed by the first groove 1-3 of the lower housing 1 and the second groove 5-2 of the middle housing 5. The lower part and the upper part of the cylindrical battery 3 are respectively bonded in the above space by the lower structural adhesive 2 and the upper structural adhesive 4. A buffer and protection space is formed around the cylindrical battery, which can effectively improve the system safety in the event of extreme situations such as collisions.

[0045] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0046] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A cylindrical battery integration device, comprising a housing, a lower structural adhesive (2), a cylindrical battery (3), an upper structural adhesive (4), and a CCS assembly (7), characterized in that: The housing comprises a lower housing (1), an intermediate housing (5) and an upper housing (8); The upper part of the lower shell (1) is provided with a boss (1-2), the upper surface of the boss (1-2) is provided with a plurality of first grooves (1-3), a first vertical surface (1-5) is provided at the end of the first groove (1-3), and a first insulating strip (1-7) perpendicular to the first vertical surface (1-5) is provided on the outer side of the first vertical surface (1-5); A plurality of second grooves (5-2) are provided on the upper surface (5-1) of the intermediate housing (5); a second vertical surface (5-4) is provided at the end of each second groove (5-2); and a protruding second insulating strip (5-5) is provided on the second vertical surface (5-4); The intermediate housing (5) is connected to the lower housing (1) via bolts (6), and the lower and upper parts of the cylindrical battery (3) are respectively bonded to the space formed by the first groove (1-3) and the second groove (5-2) via the lower structural adhesive (2) and the upper structural adhesive (4); The CCS assembly (7) is arranged on the intermediate shell (5), and the adjacent first connection row (7-1) and second connection row (7-2) thereon are isolated in two areas by the first insulating strip (1-7) and the second insulating strip (5-5); the upper shell (8) is buckled onto the top of the CCS assembly (7) and the intermediate shell (5) and is connected to the lower shell (1).

2. A cylindrical battery integration device according to claim 1, characterized in that: The cylindrical battery (3) is composed of a cover plate assembly (3-1) and a shell (3-2); the cover plate assembly (3-1) is composed of a pole (3-3), a first explosion-proof valve (3-4) and a light cover plate (3-5); and a second explosion-proof valve (3-7) is provided on the bottom (3-6) of the shell of the cylindrical battery (3).

3. A cylindrical battery integration device according to claim 1, characterized in that: The upper shell (8) is composed of a box body bottom (8-1) and a box body vertical edge (8-2), a pole mounting hole (8-5) is provided inside the upper shell (8), and positive and negative poles (7-3) are provided on the top of the CCS assembly (7).

4. A cylindrical battery integration device according to claim 3, characterized in that: The edge of the lower shell (1) is provided with a vertical edge (1-1), and the edge of the box body vertical edge (8-2) is provided with a third groove (8-4).

5. A cylindrical battery integration device according to claim 1, characterized in that: A plurality of first ribs (1-4) are arranged in the first groove (1-3), and a plurality of second ribs (5-3) are arranged in the second groove (5-2).

6. A cylindrical battery integration device according to claim 2, characterized in that: The first facade (1-5) is provided with an avoidance hole (1-6).

7. A cylindrical battery integration device according to claim 1, characterized in that: The boss (1-2) is provided with a positioning pin (1-8) and a nut (1-9), and the upper surface (5-1) of the intermediate housing (5) is provided with a positioning hole (5-7) and a fixing hole (5-8).

8. A cylindrical battery integration device according to claim 1, characterized in that: A connecting row of positioning pins (5-6) is vertically arranged on the second vertical surface (5-4) on the intermediate shell (5).

9. A cylindrical battery integrated device according to claim 3, characterized in that: A plurality of vertically staggered reinforcing ribs (8-3) are arranged on the bottom (8-1) of the box body.

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