Shell cover occlusion structure

Abstract

The utility model discloses a shell cover occlusion structure, which relates to the technical field of battery shell covers, and comprises a shell, both sides of the top end of the shell are provided with slots, the top of the shell is provided with a cover plate, both sides of the bottom end of the cover plate are fixedly connected with clamping plates, one side of each clamping plate is provided with a plurality of movable blocks, and the movable blocks are fixedly connected with the cover plate. Grooves are formed in the two sides of the top end of the cover plate, inserting rods movably penetrate through the middles of the grooves, circular plates are fixedly connected to the top ends of the inserting rods, clamping heads are fixedly connected to the bottom ends of the inserting rods, and a plurality of fixing blocks are fixedly connected to the tops of the inner walls of the two sides of the shell. By arranging a series of structures, the probability of loosening after the cover plate and the shell are assembled and butted can be reduced, subsequent laser welding of the cover plate and the shell is facilitated, and the action of lifting the cover plate for confirmation is avoided, so that the situation that the shell falls off due to the fact that the clamping cover is not clamped tightly is avoided, and whether the shell cover is clamped tightly or not is conveniently confirmed.

Description

Technical Field

[0001] The utility model relates to the technical field of battery shell covers, in particular to a shell cover bite structure. Background Art

[0002] The structural parts of lithium batteries include the cell cover and the shell. The cover is an important part of the battery package. Its main function is to protect the battery cell, prevent the leakage of chemical substances inside the battery, and avoid the influence of the external environment on the battery. The cover usually needs to be welded after being assembled with the shell.

[0003] However, the existing cover plate and shell adopt a stepped structure during assembly, so that the cover plate is pressed into the shell. Due to the poor fit between the cover plate and the shell, the cover plate pressed into the shell is more likely to loosen, which is not conducive to the subsequent laser welding of the cover plate and the shell. In addition, after the cover plate is pressed into the shell and before welding, it is usually necessary to confirm whether the cover plate and the shell are docked. At this time, the cover plate pressed into the shell is usually lifted for confirmation. This method makes it easier for the shell to loosen and slip off the cover plate during the process of lifting the cover plate, causing the shell and the internal battery cell to fall off, and it is not convenient to confirm whether the shell cover is stuck. Utility Model Content

[0004] The purpose of the utility model is to provide a shell cover engaging structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shell cover bite structure, including a shell, slots are provided on both sides of the top of the shell, a cover plate is provided on the top of the shell, both sides of the bottom of the cover plate are fixedly connected with card plates, one side of the card plate is provided with a plurality of movable blocks, grooves are provided on both sides of the top of the cover plate, a plug rod movably penetrates the middle of the groove, a round plate is fixedly connected to the top of the plug rod, a clamping head is fixedly connected to the bottom end of the plug rod, a plurality of fixed blocks are fixedly connected to the tops of the inner walls on both sides of the shell, and clamping blocks are fixedly connected to the tops of the other two inner walls of the shell.

[0006] Preferably, the top end of the movable block is fixedly connected to the cover plate, and the movable block is movably connected to the shell through the cover plate.

[0007] Preferably, the movable block is movably connected to the fixed block via a cover plate, and the cover plate is movably engaged with the shell via the fixed block.

[0008] Preferably, the card plate is movably connected to the slot via a cover plate.

[0009] Preferably, the circular plate is movably embedded in the groove via an insertion rod.

[0010] Preferably, a circular hole is provided at the top of the clamping block, the clamping head is movably connected to the circular hole, and the clamping head is movably engaged with the clamping block through the circular hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The shell cover interlocking structure uses a fixed block, a movable block, a card plate and a slot, so that when the cover plate is assembled and docked with the shell, the card plate will be inserted into the slot first, so that the cover plate is aligned with the shell, and then the movable block at the bottom of the cover plate can slide down in contact with the inclined surface of the fixed block on the inner wall of the shell. At the same time, after the cover plate is in contact with the top of the shell, the movable block will be in contact with the bottom surface of the fixed block to form an interlocking structure, thereby reducing the probability of looseness after the cover plate and the shell are assembled and docked, and is more conducive to the subsequent laser welding of the cover plate and the shell.

[0013] 2. The shell cover engagement structure uses a card block, an insertion rod, a clamping head, a circular plate and a groove. When confirming whether the cover is clamped with the shell, the circular plate can be pressed downward so that the insertion rod drives the clamping head to be inserted into the card block. If the circular plate can still drive the cover to move downward after being embedded in the groove, it means that the cover is not completely clamped with the shell. At this time, continue to press down the circular plate until the circular plate can no longer be pressed down. This confirmation method can avoid the need to lift the cover for confirmation, thereby preventing the shell from falling due to the cover not being clamped, and is convenient for confirming whether the shell cover is clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the insert rod and the clamping head of the utility model;

[0016] Figure 3 This is a schematic diagram of the fixing block and slot structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the card plate and the movable block of the utility model.

[0018] In the figure: 1, cover plate; 2, fixed block; 3, clamping plate; 4, movable block; 5, round plate; 6, plug rod; 7, clamp head; 8, clamping block; 9, housing; 10, slot; 11, round hole; 12, groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figures 1 to 4 As shown, the shell cover engagement structure of this embodiment includes a shell 9, slots 10 are provided on both sides of the top of the shell 9, a cover plate 1 is provided on the top of the shell 9, a clamping plate 3 is fixedly connected to both sides of the bottom of the cover plate 1, a plurality of movable blocks 4 are provided on one side of the clamping plate 3, grooves 12 are provided on both sides of the top of the cover plate 1, an insertion rod 6 movably penetrates the middle of the groove 12, a circular plate 5 is fixedly connected to the top of the insertion rod 6, a clamping head 7 is fixedly connected to the bottom end of the insertion rod 6, a plurality of fixed blocks 2 are fixedly connected to the tops of the inner walls on both sides of the shell 9, and clamping blocks 8 are fixedly connected to the tops of the inner walls on the other two sides of the shell 9.

[0023] Specifically, the shell 9 is made of metal aluminum material, and the top is not sealed, so that the battery core can smoothly enter the shell 9, the length of the slot 10 is adapted to the length of the card board 3, so that the card board 3 can be plugged with the top of the shell 9 along the slot 10, so that it is convenient to align the cover plate 1 with the shell 9 by inserting the card board 3 into the slot 10, and the card board 3 and the cover plate 1 are an integrated structure, and the movable block 4 is composed of a vertically deformable metal plate and an inclined block metal material at the bottom, so that the movable block 4 can slide smoothly along the inclined surface of the fixed block 2 on the inner wall of the shell 9, thereby facilitating the movable block 4 to ... The movable block 4 is temporarily engaged with the fixed block 2, and the inner diameter of the groove 12 is adapted to the outer diameter of the circular plate 5, so that the circular plate 5 can be smoothly embedded in the groove 12 and flush with the top surface of the cover 1. The function of the insertion rod 6 is to drive the clamping head 7 to be inserted into the clamping block 8, so that when the cover 1 is confirmed whether it is locked, the cover 1 and the shell 9 can be locked for the second time, thereby facilitating the subsequent laser welding of the cover 1 and the shell 9. The cross-sectional shape of the clamping head 7 is "trapezoidal" and the material is silicone. After being inserted into the clamping block 8, it can be engaged and locked with the clamping block 8, thereby facilitating the engagement and fixation of the cover 1 and the shell 9.

[0024] Furthermore, the top of the movable block 4 is fixedly connected to the cover plate 1, and the movable block 4 is movably connected to the outer shell 9 through the cover plate 1. When the cover plate 1 is pressed toward the top of the outer shell 9, the movable block 4 can slide along the inclined surface of the fixed block 2 on the inner wall of the outer shell 9, and finally fit with the bottom surface of the fixed block 2, thereby realizing the bite and clamping of the cover plate 1 and the outer shell 9.

[0025] Furthermore, the movable block 4 is movably connected to the fixed block 2 through the cover plate 1, and the cover plate 1 is movably engaged with the outer shell 9 through the fixed block 2. The cross-sections of the bottom ends of the fixed block 2 and the movable block 4 are both "triangles". When the bottom surface of the fixed block 2 fits with the top surface of the bottom end of the movable block 4, the surfaces of the two "triangles" will fit together, thereby achieving the bite and clamping of the cover plate 1 and the outer shell 9.

[0026] Furthermore, the card plate 3 is movably connected to the slot 10 through the cover plate 1. When the cover plate 1 is pressed toward the shell 9, the bottom end of the card plate 3 is lower than the bottom end of the movable block 4, so that the card plate 3 contacts the shell 9 before the movable block 4, so that the card plate 3 can limit the downward pressure of the cover plate 1, so that the movable block 4 can accurately fit with the fixed block 2, thereby ensuring the bite of the movable block 4 and the fixed block 2.

[0027] Furthermore, the circular plate 5 is movably embedded in the groove 12 through the insertion rod 6. After the circular plate 5 is embedded in the groove 12, its top will be flush with the top of the cover 1, so that the user can confirm whether the cover 1 and the shell 9 are properly docked, thereby facilitating confirmation of whether the cover 1 and the shell 9 are clamped.

[0028] Furthermore, a circular hole 11 is provided at the top of the clamping block 8, and the clamping head 7 is movably connected with the circular hole 11. The clamping head 7 is movably engaged with the clamping block 8 through the circular hole 11. The inner diameter of the circular hole 11 is smaller than the outer diameter of the top of the clamping head 7. The clamping head 7 is made of silicone and can be deformed before and after being inserted into the circular hole 11, so that the clamping head 7 is not easy to be pulled out after being inserted into the circular hole 11 at the top of the clamping block 8, thereby enhancing the firmness of the engagement between the cover plate 1 and the shell 9.

[0029] The method of using this embodiment is as follows: when the cover plate 1 is pressed against the shell 9 for assembly and docking, the card plate 3 at the bottom end of the cover plate 1 will first be inserted into the slot 10 at the top end of the shell 9, so that the cover plate 1 can slide down steadily along the shell 9, and then the movable block 4 at the bottom end of the cover plate 1 will contact the fixed block 2 at the top of the inner wall of the shell 9, and slide downward along the inclined surface of the fixed block 2. When the bottom end of the movable block 4 slides to the bottom end of the fixed block 2, the top surface of the bottom end of the movable block 4 will fit with the bottom surface of the fixed block 2, so that the movable block 4 and the fixed block 2 are locked and bitten, and the circular plates 5 on both sides of the top end of the cover plate 1 are locked due to the card head at the bottom end. 7, it will protrude from the top of the cover 1, and then the circular plate 5 can be pressed so that the circular plate 5 drives the insertion rod 6 to move downward along the middle of the groove 12, driving the clamping head 7 at the bottom end of the insertion rod 6 to insert into the circular hole 11 at the top of the fixing block 2. When the circular plate 5 is embedded in the groove 12, it can still drive the cover 1 to continue to be pressed down, which means that the cover 1 and the shell 9 are not clamped, and then it is necessary to continue to press down until the circular plate 5 is embedded in the groove 12 and the top surface of the circular plate 5 is flush with the top surface of the cover 1. At the same time, when the circular plate 5 can no longer be pushed downward, it means that the cover 1 and the shell 9 have completed the assembly and docking.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A shell cover engagement structure, comprising a shell (9), characterized in that: Slots (10) are provided on both sides of the top of the shell (9), a cover plate (1) is provided on the top of the shell (9), a card plate (3) is fixedly connected to both sides of the bottom of the cover plate (1), a plurality of movable blocks (4) are provided on one side of the card plate (3), grooves (12) are provided on both sides of the top of the cover plate (1), a plug rod (6) is movably inserted through the middle of the groove (12), a circular plate (5) is fixedly connected to the top of the plug rod (6), a card head (7) is fixedly connected to the bottom of the plug rod (6), a plurality of fixed blocks (2) are fixedly connected to the top of the inner walls on both sides of the shell (9), and a card block (8) is fixedly connected to the top of the inner walls on the other two sides of the shell (9).

2. The shell cover engagement structure according to claim 1, characterized in that: The top end of the movable block (4) is fixedly connected to the cover plate (1), and the movable block (4) is movably connected to the outer shell (9) via the cover plate (1).

3. The shell cover engagement structure according to claim 1, characterized in that: The movable block (4) is movably connected to the fixed block (2) via the cover plate (1), and the cover plate (1) is movably engaged with the outer shell (9) via the fixed block (2).

4. The shell cover engagement structure according to claim 1, characterized in that: The card plate (3) is movably connected to the slot (10) via the cover plate (1).

5. The shell cover engagement structure according to claim 1, characterized in that: The circular plate (5) is movably embedded and connected to the groove (12) via an insertion rod (6).

6. The shell cover engagement structure according to claim 1, characterized in that: A circular hole (11) is provided at the top end of the clamping block (8), the clamping head (7) is movably connected to the circular hole (11), and the clamping head (7) is movably connected to the clamping block (8) through the circular hole (11).

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