A plastic module structure with a protective mechanism

Abstract

The present invention discloses a plastic module structure with a protective mechanism, including a heat-conducting aluminum plate, a first positioning plate fixedly provided at one end of the heat-conducting aluminum plate, a second positioning plate fixedly provided at the other end of the heat-conducting aluminum plate, a base provided at one end of the heat-conducting aluminum plate, the base and the first positioning plate are fixedly connected by bolts, a plastic part is provided at the other end of the heat-conducting aluminum plate, the plastic part and the second positioning plate are fixedly connected by bolts, a convex block is integrally formed in the middle of the plastic part, and slots are provided on both sides of the convex block and both sides of the plastic part. The present invention can protect the battery tabs by providing a copper-aluminum joint, reducing the hazard of damage to the battery tabs by force, and in addition, by providing a plastic part, when the battery tabs are subjected to force in the direction of the upper battery, the mechanical force is borne by the plastic part, thereby increasing the safety of the battery.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery packaging, and in particular relates to a plastic component module structure with a protection mechanism. Background Art

[0002] With the rapid development of new energy vehicles, the performance requirements for new energy vehicles are becoming more comprehensive, and the energy density requirements for lithium-ion batteries, which are the main power source of new energy vehicles, are becoming higher and higher. However, since soft-pack batteries are packaged with aluminum-plastic film, the shell is almost weightless, and they have the characteristics of light weight, small size, high energy density, and flexibility in module design, which has won the favor of many power PACK manufacturers. In actual use, soft-pack power batteries usually first connect the battery cells in parallel or in series or in series and parallel to make modules, and then combine them into battery PACKs.

[0003] Since the positive and negative tabs of the soft-pack battery are metal sheets, they are not stable enough after installation and the tabs are prone to shaking, which may cause damage to the tabs. In addition, if the force in the direction of the upper battery acts directly on the battery tabs, the battery tabs are prone to breakage. Therefore, in the design of the battery module, the connection and fixation of the soft-pack battery requires rigid module plastic parts to support it in order to better protect the safety of the battery cell tabs. Summary of the invention

[0004] The object of the present invention is to provide a plastic module structure with a protective mechanism. By arranging a copper-aluminum joint, the battery tab can be protected, reducing the risk of damage to the battery tab due to force. In addition, by arranging a plastic part, when the battery cell tab is subjected to force in the direction of the upper battery, the mechanical force is borne by the plastic part, thereby increasing the safety of the battery, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a plastic component module structure with a protective mechanism, comprising a heat-conducting aluminum plate, a first positioning plate being fixedly provided at one end of the heat-conducting aluminum plate, a second positioning plate being fixedly provided at the other end of the heat-conducting aluminum plate, a base being provided at one end of the heat-conducting aluminum plate, the base being fixedly connected to the first positioning plate by bolts, a plastic component being provided at the other end of the heat-conducting aluminum plate, the plastic component being fixedly connected to the second positioning plate by bolts, a convex block being integrally formed at the middle position of the plastic component, both sides of the convex block and both sides of the plastic component being provided with a card slot, a copper-aluminum joint being carded in the card slot, both ends of the copper-aluminum joint being provided with a threaded hole, both sides of the convex block and both sides of the plastic component being threadedly connected with a fastening bolt, the other end of the fastening bolt being threadedly connected in the threaded hole, a through hole being provided at the middle position of the copper-aluminum joint, a slide groove being provided on the outer side of the through hole, a pressing plate being slidably provided in the slide groove, a screw being rotatably connected to the upper surface of the pressing plate, and the screw being threadedly connected to the copper-aluminum joint.

[0006] Preferably, the first positioning plate is provided with first fixing holes, and the first fixing holes are evenly provided in five groups.

[0007] Preferably, the second positioning plate is provided with second fixing holes, and the second fixing holes are evenly provided in five groups.

[0008] Preferably, a rubber pad is fixedly bonded to the lower surface of the pressing plate.

[0009] Preferably, a knob is welded on the top of the screw.

[0010] Preferably, two heat-conducting aluminum plates are provided, and the two heat-conducting aluminum plates are arranged in an upper and lower structure.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The present invention can protect the battery tabs by arranging the copper-aluminum joints, thereby reducing the hazards of stress damage to the battery tabs. In addition, by arranging the plastic parts, when the battery tabs are subjected to stress in the direction of the upper battery, the mechanical force is borne by the plastic parts, thereby reducing the possibility of the battery tabs being broken and increasing the safety of the battery.

[0013] 2. The present invention facilitates the fixing of the copper-aluminum joint by inserting the two ends of the copper-aluminum joint into the slots and screwing the fastening bolts into the threaded holes, thereby preventing the copper-aluminum joint from shaking and increasing safety.

[0014] 3. The present invention rotates the screw rod to drive the pressing plate to move downward, so that the pressing plate presses the battery tab, further increasing the stability of the battery tab and reducing the possibility of damage to the battery tab. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 For the present invention Figure 1 A magnified cross-sectional view of the A;

[0017] Figure 3 For the present invention Figure 1 Right side cross-sectional view of the copper-aluminum joint;

[0018] Figure 4 For the present invention Figure 3 A magnified view of point B;

[0019] Figure 5 It is a schematic diagram of the structure of the heat-conducting aluminum plate of the present invention.

[0020] In the figure: 1. heat-conducting aluminum plate; 2. first positioning plate; 3. second positioning plate; 4. base; 5. plastic part; 6. bump; 7. slot; 8. copper-aluminum joint; 9. threaded hole; 10. fastening bolt; 11. through hole; 12. slide groove; 13. pressure plate; 14. screw; 15. first fixing hole; 16. second fixing hole; 17. rubber pad; 18. knob. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-5 The present invention provides a technical solution: a plastic module structure with a protective mechanism, comprising a heat-conducting aluminum plate 1. In order to facilitate the packaging of a battery pack, two heat-conducting aluminum plates 1 are provided, and the two heat-conducting aluminum plates 1 are provided in an upper and lower structure. A first positioning plate 2 is fixedly provided at one end of the heat-conducting aluminum plate 1, and a second positioning plate 3 is fixedly provided at the other end of the heat-conducting aluminum plate 1. A base 4 is provided at one end of the heat-conducting aluminum plate 1, and the base 4 is fixedly connected to the first positioning plate 2 by bolts. In order to increase the stability of the connection of the base 4, a first fixing hole 15 is provided on the first positioning plate 2, and the first fixing holes 15 are evenly provided in five groups. A plastic part 5 is provided at the other end of the heat-conducting aluminum plate 1, and the plastic part 5 is fixedly connected to the second positioning plate 3 by bolts. In order to increase the stability of the installation of the plastic part 5, a second fixing hole 16 is provided on the second positioning plate 3, and the second fixing holes 16 are evenly provided in five groups.

[0023] A protrusion 6 is integrally formed in the middle of the plastic part 5, and a clamping groove 7 is provided on both sides of the protrusion 6 and the plastic part 5, a copper-aluminum joint 8 is clamped in the clamping groove 7, and threaded holes 9 are provided at both ends of the copper-aluminum joint 8, and fastening bolts 10 are threadedly connected to both sides of the protrusion 6 and the plastic part 5, and the other end of the fastening bolt 10 is threadedly connected to the threaded hole 9;

[0024] A through hole 11 is provided in the middle of the copper-aluminum joint 8, a slide groove 12 is provided on the outer side of the through hole 11, a pressure plate 13 is slidably arranged in the slide groove 12, in order to avoid damage to the battery ear, a rubber pad 17 is fixedly bonded to the lower surface of the pressure plate 13, and a screw 14 is rotatably connected to the upper surface of the pressure plate 13. In order to facilitate the rotation of the screw 14, a knob 18 is welded on the top of the screw 14, and the screw 14 is threadedly connected to the copper-aluminum joint 8.

[0025] Structural principle: When installing the battery, first evenly paste the thermal conductive silicone pad on the thermal conductive aluminum plate 1, and wrap the battery in the thermal conductive aluminum plate 1. The battery core and the plastic part 5 are tightly fitted, the battery core is evenly compacted, and foam is pasted between the battery cores. The foam is fixed by dispensing thermal conductive glue, and the battery pole ear is passed through the copper-aluminum joint 8. By setting the copper-aluminum joint 8, the battery pole ear can be protected, reducing the risk of damage to the battery pole ear. In addition, by setting the plastic part 5, when the battery pole ear is subjected to force in the direction of the upper battery, the mechanical force is transmitted by the plastic. The component 5 is borne, which reduces the possibility of the battery ear being broken and increases the safety of the battery; at the same time, by inserting the two ends of the copper-aluminum joint 8 into the slot 7 and screwing the fastening bolt 10 into the threaded hole 9, it is convenient to fix the copper-aluminum joint 8 and avoid shaking of the copper-aluminum joint 8, thereby increasing safety; in addition, by rotating the screw rod 14, the screw rod 14 drives the pressure plate 13 to move downward, so that the pressure plate 13 presses the battery ear, further increasing the stability of the battery ear and reducing the possibility of damage to the battery ear.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic component module structure with a protective mechanism, comprising a heat-conducting aluminum plate (1), characterized in that: A first positioning plate (2) is fixedly provided at one end of the heat-conducting aluminum plate (1), a second positioning plate (3) is fixedly provided at the other end of the heat-conducting aluminum plate (1), a base (4) is provided at one end of the heat-conducting aluminum plate (1), the base (4) is fixedly connected to the first positioning plate (2) by bolts, a plastic part (5) is provided at the other end of the heat-conducting aluminum plate (1), the plastic part (5) is fixedly connected to the second positioning plate (3) by bolts, a convex block (6) is integrally formed at the middle position of the plastic part (5), both sides of the convex block (6) and both sides of the plastic part (5) are provided with slots (7), a copper-aluminum joint (8) is clamped in the slot (7), both ends of the copper-aluminum joint (8) are provided with threaded holes (9), the convex block (6) is integrally formed with the second positioning plate (3), and the copper-aluminum joint (8) is fixedly connected to the first positioning plate (2) by bolts. Both sides of the (6) and both sides of the plastic part (5) are threadedly connected with fastening bolts (10), and the other end of the fastening bolts (10) is threadedly connected in the threaded hole (9). A through hole (11) is provided in the middle of the copper-aluminum joint (8), and a slide groove (12) is provided on the outer side of the through hole (11). A pressure plate (13) is slidably arranged in the slide groove (12), and a screw rod (14) is rotatably connected to the upper surface of the pressure plate (13), and the screw rod (14) is threadedly connected to the copper-aluminum joint (8). A rubber pad (17) is fixedly bonded to the lower surface of the pressure plate (13), and a knob (18) is welded on the top of the screw rod (14). Two heat-conducting aluminum plates (1) are provided, and the two heat-conducting aluminum plates (1) are arranged in an upper and lower structure.

2. The plastic component module structure with a protective mechanism according to claim 1, characterized in that: The first positioning plate (2) is provided with first fixing holes (15), and the first fixing holes (15) are evenly provided in five groups.

3. The plastic component module structure with a protective mechanism according to claim 1, characterized in that: The second positioning plate (3) is provided with second fixing holes (16), and the second fixing holes (16) are evenly provided in five groups.

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