阅读说明：本技术 一种轻薄型纳米注塑电池盖板组件 (Light and thin type nanometer injection molding battery cover plate assembly ) 是由 杨前军 倪满元 邓仁荣 于 2021-09-03 设计创作，主要内容包括：本发明属于新能源电池技术领域,尤其涉及一种轻薄型纳米注塑电池盖板组件。本发明要解决的技术问题是提供一种提高新能源电池安全性且降低生产成本的轻薄型纳米注塑电池盖板组件。一种轻薄型纳米注塑电池盖板组件,包括有铝支架、塑胶包覆体和极柱端子；铝支架主体为外框架中间设置镂空处形成,镂空处中部沿横向设置有横向加强筋,沿纵向设置有纵向加强筋,且横向加强筋和纵向加强筋的交界处设置有防爆阀结构；横向加强筋的两端处均设有凸环。本发明的轻薄型纳米注塑电池盖板组件具有结构可靠性强、制造过程简单、成本低廉等特点。(The invention belongs to the technical field of new energy batteries, and particularly relates to a light and thin type nanometer injection molding battery cover plate assembly. The invention aims to provide a light and thin nanometer injection molding battery cover plate component which can improve the safety of a new energy battery and reduce the production cost. A light and thin nanometer injection molding battery cover plate component comprises an aluminum bracket, a plastic cladding body and a pole terminal; the aluminum bracket main body is formed by arranging a hollow part in the middle of an outer frame, a transverse reinforcing rib is transversely arranged in the middle of the hollow part, a longitudinal reinforcing rib is longitudinally arranged, and an explosion-proof valve structure is arranged at the junction of the transverse reinforcing rib and the longitudinal reinforcing rib; both ends of the transverse reinforcing rib are provided with convex rings. The light and thin type nanometer injection molding battery cover plate component has the characteristics of strong structural reliability, simple manufacturing process, low cost and the like.)

1. A light and thin nanometer injection molding battery cover plate component is characterized by comprising an aluminum bracket (1), a plastic cladding body (2) and a terminal of a pole column (3); the main body of the aluminum bracket (1) is formed by arranging a hollow part (12) in the middle of an outer frame (11), a transverse reinforcing rib (13) is transversely arranged in the middle of the hollow part (12), a longitudinal reinforcing rib (14) is longitudinally arranged, and an explosion-proof valve structure (4) is arranged at the junction of the transverse reinforcing rib (13) and the longitudinal reinforcing rib (14); both ends of the transverse reinforcing rib (13) are provided with convex rings (15), and the outer edge of each convex ring (15) is provided with a plurality of bending reinforcing ribs (16) which are respectively connected with the outer frame (11) and the transverse reinforcing rib (13); the upper end surface and the lower end surface of the outer frame (11), the transverse reinforcing ribs (13) and the longitudinal reinforcing ribs (14) are respectively provided with an upper connecting hole (18) and a lower connecting hole (17); the middle part of the plastic cladding body (2) is provided with a cavity (27) for arranging the aluminum bracket (1); the two ends of the plastic cladding body (2) are provided with convex hulls (21), and the middle part of the plastic cladding body is provided with a through hole (22) for connecting the convex ring (15); the inner side of the convex hull (21) is provided with a connecting groove (23); the upper surface and the lower surface of a middle cavity (27) of the plastic cladding body (2) are respectively provided with an upper connecting block (26) and a lower connecting block (25) which are respectively connected with an upper connecting hole (18) and a lower connecting hole (17) on the aluminum bracket (1) in a one-to-one correspondence manner; the upper part of the terminal of the pole (3) is provided with an upper boss (31), the bottom of the upper boss (31) is provided with a middle flange (32), and the bottom of the middle flange (32) is provided with a lower boss (34); the middle flange (32) is clamped in the connecting groove (23) and is connected and fixed with the convex hull (21).

2. The battery cover plate assembly for the light and thin nanometer injection molding of claim 1, wherein a plurality of notches (33) are evenly distributed on the outer edge of the middle flange (32), a plurality of convex blocks (24) are evenly distributed in the connecting groove (23), and after the middle flange (32) is clamped in the connecting groove (23), the notches (33) are correspondingly clamped with the convex blocks (24) to prevent the terminal of the pole (3) from rotating.

3. The battery cover plate assembly for light and thin nanometer injection molding of claim 2, wherein the upper connecting block (26) and the lower connecting block (25) are both in a shape of a step, the end connected with the plastic cladding (2) is narrow, and the upper connecting hole (18) and the lower connecting hole (17) are also holes of the step.

4. The battery cover plate assembly according to claim 3, wherein the terminal of the terminal post (3) has a top end position higher than the top end position of the convex hull (21), and a bottom end position exceeding the through hole (22).

5. The battery cover plate assembly for light and thin nanometer injection molding according to claim 4, wherein the through hole (22) is a stepped hole with a wide top and a narrow bottom, and the outer diameter of the upper boss (31) of the terminal of the pole (3) is larger than that of the lower boss (34).

6. The battery cover plate assembly for light and thin nanometer injection molding of claim 5, wherein the number of the bending reinforcing ribs (16) for connecting the convex ring (15) on the aluminum bracket (1) is 4, and one of the bending reinforcing ribs is connected with the end of the transverse reinforcing rib (13).

Technical Field

The invention belongs to the technical field of new energy batteries, and particularly relates to a light and thin type nanometer injection molding battery cover plate assembly.

Background

In recent years, under the promotion of the concept of 'green sustainable development', the new energy automobile market is continuously and rapidly expanded, and the new energy battery market is driven to rapidly grow. At present, a square aluminum shell structure is generally adopted by a new energy battery and consists of a shell and a battery cover plate assembly, wherein a battery cover plate is used as an energy transmission medium of the new energy battery while providing a closed space for the new energy battery, and the structure of the battery cover plate directly influences the reliability and the manufacturing cost of a battery pack. At present, the battery cover plate is generally of a traditional cover plate structure, the weight of the battery cover plate reaches 90g, the total height of the cover plate reaches 19mm, the material utilization efficiency is low, and the material cost is high; and traditional apron structure utmost point post adopts copper aluminium friction welding technique, relies on fixed apron and utmost point post of moulding plastics in the PPS material mould, has utmost point post copper aluminium composition face fracture and utmost point post and the risk that the apron drops, has reduced the security in the new forms of energy battery use.

Disclosure of Invention

The invention aims to provide a light and thin nanometer injection molding battery cover plate component which can improve the safety of a new energy battery and reduce the production cost.

The invention is achieved by the following specific technical means:

a light and thin nanometer injection molding battery cover plate component comprises an aluminum bracket, a plastic cladding body and a pole terminal; the aluminum bracket main body is formed by arranging a hollow part in the middle of an outer frame, a transverse reinforcing rib is transversely arranged in the middle of the hollow part, a longitudinal reinforcing rib is longitudinally arranged, and an explosion-proof valve structure is arranged at the junction of the transverse reinforcing rib and the longitudinal reinforcing rib; the two ends of the transverse reinforcing rib are respectively provided with a convex ring, and the outer edge of each convex ring is provided with a plurality of bending reinforcing ribs which are respectively connected with the outer frame and the transverse reinforcing rib; the upper end surface and the lower end surface of the outer frame, the transverse reinforcing rib and the longitudinal reinforcing rib are respectively provided with an upper connecting hole and a lower connecting hole; the middle part of the plastic cladding body is provided with a cavity for arranging the aluminum bracket; the two ends of the plastic cladding body are provided with convex hulls, and the middle part of the plastic cladding body is provided with a through hole for connecting the convex rings; the inner side of the convex hull is provided with a connecting groove; the upper and lower surfaces of the middle cavity of the plastic cladding body are respectively provided with an upper connecting block and a lower connecting block which are respectively connected with an upper connecting hole and a lower connecting hole on the aluminum bracket in a one-to-one correspondence manner; the upper part of the pole terminal is provided with an upper boss, the bottom of the upper boss is provided with a middle flange, and the bottom of the middle flange is provided with a lower boss; the middle flange is clamped into the connecting groove and is fixedly connected with the convex hull.

Further, the equipartition has a plurality of concave along the equipartition outside the middle part flange, and the equipartition has a plurality of lug in the spread groove, and back in the spread groove is gone into to middle part flange card, and concave corresponds the joint with the lug, prevents that utmost point post terminal from rotating.

Furthermore, go up the connecting block and be the step form with connecting block down, and the one end of being connected with plastic cladding body is narrow, goes up the connecting hole and also is the step hole with connecting hole down.

Furthermore, the top end position of the pole terminal is higher than the top end position of the convex hull, and the bottom end position exceeds the through hole.

Furthermore, the through hole is a stepped hole with a wide upper part and a narrow lower part, and the outer diameter of the upper lug boss of the pole terminal is larger than that of the lower lug boss.

Furthermore, the number of the bending reinforcing ribs used for connecting the convex ring on the aluminum support is 4, and one of the bending reinforcing ribs is connected with the end part of the transverse reinforcing rib.

Compared with the prior art, the invention has the following beneficial effects:

1. the light and thin type nanometer injection molding battery cover plate component has the characteristics of strong structural reliability, simple manufacturing process, low cost and the like, and particularly has the remarkable advantages of improving the energy density of a new energy battery and reducing the material cost;

2. according to the light and thin nanometer injection molding battery cover plate component, a sealing scheme of traditional fluororubber is replaced by a high-molecular injection molding material, so that the product structure and the production process are simplified, the battery scrapping caused by manual work or equipment neglected installation of a sealing ring is avoided, and the safety of the product is improved;

3. the light and thin nanometer injection molding battery cover plate component is assembled into the component only through stamping and injection molding processes, so that the process flow is simplified, and particularly, a friction welding technology with complex process, high cost and low production yield and a lower cutting processing process with production efficiency are abandoned for the pole terminal.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic diagram of the explosive structure of the present invention.

Fig. 3 is a schematic perspective view of an aluminum bracket according to the present invention.

Fig. 4 is a schematic sectional structure view of an aluminum bracket according to the present invention.

Fig. 5 is a schematic perspective view of the plastic cover of the present invention.

Fig. 6 is a schematic cross-sectional view of the plastic cover of the present invention.

Fig. 7 is a schematic perspective view of the post terminal of the present invention.

Fig. 8 is a schematic structural view of the post terminal of the present invention after connection.

The labels in the figures are: 1-aluminum support, 11-outer frame, 12-hollowed-out part, 13-transverse reinforcing rib, 14-longitudinal reinforcing rib, 15-convex ring, 16-bending reinforcing rib, 17-lower connecting hole, 18-upper connecting hole, 2-plastic cladding body, 21-convex hull, 22-through hole, 23-connecting groove, 24-convex block, 25-lower connecting block, 26-upper connecting block, 27-cavity, 3-pole, 31-upper boss, 32-middle flange, 33-indentation, 34-lower boss and 4-explosion-proof valve structure.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Examples

A light and thin nanometer injection molding battery cover plate component is shown in figures 1-8 and comprises an aluminum bracket 1, a plastic cladding body 2 and a terminal of a pole 3; the main body of the aluminum bracket 1 is formed by arranging a hollow part 12 in the middle of an outer frame 11, a transverse reinforcing rib 13 is transversely arranged in the middle of the hollow part 12, a longitudinal reinforcing rib 14 is longitudinally arranged, and an explosion-proof valve structure 4 is arranged at the junction of the transverse reinforcing rib 13 and the longitudinal reinforcing rib 14; both ends of the transverse reinforcing rib 13 are provided with convex rings 15, and the outer edge of each convex ring 15 is provided with a plurality of bending reinforcing ribs 16 which are respectively connected with the outer frame 11 and the transverse reinforcing rib 13; the upper and lower end faces of the outer frame 11, the transverse reinforcing ribs 13 and the longitudinal reinforcing ribs 14 are respectively provided with an upper connecting hole 18 and a lower connecting hole 17; the middle part of the plastic cladding body 2 is provided with a cavity 27 for accommodating the aluminum bracket 1; the two ends of the plastic cladding body 2 are provided with convex hulls 21, and the middle part of the plastic cladding body is provided with a through hole 22 for connecting the convex ring 15; the inner side of the convex hull 21 is provided with a connecting groove 23; the upper and lower surfaces of the middle cavity 27 of the plastic cladding body 2 are respectively provided with an upper connecting block 26 and a lower connecting block 25 which are respectively connected with the upper connecting hole 18 and the lower connecting hole 17 on the aluminum bracket 1 in a one-to-one correspondence manner; the upper part of the terminal of the pole 3 is provided with an upper boss 31, the bottom of the upper boss 31 is provided with a middle flange 32, and the bottom of the middle flange 32 is provided with a lower boss 34; the middle flange 32 is clamped into the connecting groove 23 and is fixedly connected with the convex hull 21.

Wherein, the equipartition has a plurality of concave notch 33 along the equipartition outside the middle part flange 32, and the equipartition has a plurality of lug 24 in the spread groove 23, and back in the spread groove 23 was gone into to middle part flange 32 card, concave notch 33 and the corresponding joint of lug 24 prevent 3 terminal rotations of utmost point post.

The upper connecting block 26 and the lower connecting block 25 are both in a step shape, one end connected with the plastic cladding body 2 is narrow, and the upper connecting hole 18 and the lower connecting hole 17 are also step holes.

The top end position of the terminal of the pole 3 is higher than the top end position of the convex hull 21, and the bottom end position exceeds the through hole 22.

The through hole 22 is a stepped hole with a wide top and a narrow bottom, and the outer diameter of the upper boss 31 of the terminal of the pole 3 is larger than that of the lower boss 34.

The number of the bending reinforcing ribs 16 used for connecting the convex ring 15 on the aluminum support 1 is 4, and one of the bending reinforcing ribs is connected with the end part of the transverse reinforcing rib 13.

When the battery cover plate assembly is prepared, firstly, an aluminum support 1 is manufactured by utilizing processes such as stamping forming and the like, then a terminal of a pole 3 is placed at a proper position in an upper convex ring 15 of the aluminum support 1, and then injection molding of a plastic cladding body 2 is carried out, so that the formed plastic cladding body 2 wraps the upper surface and the lower surface of the aluminum support 1, and the aluminum support 1 is prevented from contacting with a battery cell; an upper connecting block 26 and a lower connecting block 25 are respectively formed in the upper connecting hole 18 and the lower connecting hole 17, so that the plastic cladding body 2 is tightly connected with the aluminum bracket 1; and convex closure 21 also wraps up convex ring 15 completely, and the middle part flange 32 of utmost point post 3 terminal is located spread groove 23, has avoided utmost point post 3 terminal to drop, and the notch 33 and the lug 24 joint that corresponds have avoided utmost point post 3 terminal to produce and rotate.

The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.