A lithium battery case assembly

Abstract

The utility model discloses a lithium battery shell assembly, aims at providing a lithium battery shell assembly that improves the stability and convenience of battery placement. It includes upper casing, the inner chamber surface of upper casing has the structure of protruding inward and is equipped as upper boss, lower casing, lower casing is sealedly connected with upper casing, the inner chamber surface of lower casing has the structure of protruding inward and is equipped as lower boss, and the lower recess is connected with the antiskid strip, a plurality of battery support, the upper side of battery support is connected with upper boss, and the lower side of battery support is connected with lower boss, front limit seat, rear limit seat, tail lamp shade, discharge socket. The utility model has the beneficial effects that: the shell assembly simplifies structure, improves production efficiency and saves resources, the lithium battery is placed stably and is not easy to loosen and has high degree of cooperation, the shell is convenient for daily taking and plug -in use, the assembly is convenient for assembling and maintaining, improves the assembly stability and efficiency of lithium battery and battery support, enhances the assembly structure strength, and improves the shell sealing property.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery casing technology, and in particular to a lithium battery casing assembly. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as the positive or negative electrode material and a non-aqueous electrolyte solution. Lithium-ion batteries need to be housed in a casing to maintain stability and enable their operation.

[0003] Chinese Patent Announcement No.: CN222562731U, Announcement Date: March 4, 2025. This utility model discloses a waterproof lithium battery casing structure, comprising an aluminum cylindrical shell, an upper cover, and a lower cover. The aluminum cylindrical shell is hollow inside. The right side of the upper cover is snapped into the left side of the aluminum cylindrical shell, and the left side of the lower cover is snapped into the right side of the aluminum cylindrical shell. A taillight is provided inside the lower cover, with one end of the taillight passing through the lower cover and positioned outside the right side of the lower cover. The taillight is snapped into the lower cover. The shortcomings of this technical solution are: the stability of the lithium battery placement is difficult to guarantee, and the casing is inconvenient to handle and use in daily life.

[0004] In summary, the lithium battery casing structure has shortcomings such as difficulty in ensuring the stability of lithium battery placement, inconvenience in handling the casing, and limitations in daily use. Utility Model Content

[0005] The present invention aims to overcome the shortcomings of existing lithium battery casings in ensuring battery placement stability, and provides a lithium battery casing assembly that improves battery placement stability and ease of use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A lithium battery casing assembly, comprising

[0008] The upper shell has an inwardly protruding structure on its inner cavity surface, which is set as an upper boss. The outer side of the upper shell has an upper groove at the corresponding position of the upper boss.

[0009] The lower housing is sealed to the upper housing. The inner cavity surface of the lower housing has an inward protruding structure and is set as a lower boss. The outer side of the lower housing is set as a lower groove at the corresponding position of the lower boss. The lower groove is connected to an anti-slip strip.

[0010] Several battery brackets, the upper side of the battery bracket is snapped into the upper boss, the lower side of the battery bracket is snapped into the lower boss, the battery bracket includes a front bracket and a rear bracket, and the front bracket and the rear bracket are detachably connected.

[0011] The front limit seat is connected to the lower housing and abuts against the front end of the battery bracket.

[0012] The rear limit seat is connected to the lower housing and abuts against the rear end of the battery bracket.

[0013] The taillight cover has a fixing groove on both the upper and lower housings, and the taillight cover is detachably connected to the fixing groove.

[0014] The discharge socket has mounting holes on its upper housing, and the discharge socket can be detachably connected to the mounting holes.

[0015] The upper and lower housings are sealed together as a whole via their opposing end faces to accommodate the battery within the assembled cavity. The surface of the upper housing is recessed inward at the upper groove to form an upper boss, and the surface of the lower housing is recessed inward at the lower groove to form a lower boss. This integrated injection molding process shapes the upper and lower housings and forms the support points for the battery holder within the cavity. This eliminates the need for additional structural support on both sides of the battery holder, simplifying the structure while improving production efficiency and saving resources. The recessed grooves create an uneven surface on the housings, facilitating handling and preventing slippage, especially during insertion and removal. The battery holders are connected by a front and rear support structure. The design allows for quick assembly and fixation of the lithium battery (not shown in the figure). The front and rear limiting seats of the lower housing limit the front and rear ends of the battery bracket, achieving comprehensive front-to-back and left-to-right positioning of the battery bracket and ensuring stable placement. Anti-slip strips are connected to the grooves of the small recesses to enhance the ease of handling and use of the housing. The taillight cover is connected to the fixing grooves on the front faces of the upper and lower housings, and is used to house LED lights (not shown in the figure) for indication and illumination. The discharge socket is connected to the mounting hole on the front face of the upper housing for plugging and unplugging the interface. The disassembly and reassembly method facilitates assembly and maintenance. This design achieves the following benefits: simplified housing assembly structure, improved production efficiency and resource conservation, stable and secure lithium battery placement with high fit, easy daily handling and plugging / unplugging of the housing, and convenient assembly and maintenance of the components.

[0016] Preferably, both the front and rear supports include a connecting plate, a battery tube, and a docking block. One end of the battery tube is connected to the connecting plate, and the other end is connected to the docking block. The connecting plate has a docking slot that matches the docking block. The front and rear supports in the battery holder are arranged in a mirror image, allowing the end faces of the battery tubes to be joined together to cover the lithium battery, enabling quick assembly. The other end of the battery tube is fixed by being connected to the connecting plate. One end face of the connecting plate can accommodate several battery tubes, while the other end face connects to several docking blocks and has several docking slots. This allows adjacent front and rear supports to be joined together via docking blocks and slots, enabling several battery holders to be stably connected as a single unit before being placed between the upper and lower housings. This improves the stability and efficiency of the lithium battery and battery holder assembly.

[0017] Preferably, the lower boss has two protrusions positioned side-by-side within the lower housing cavity. The front limiting seat includes a front baffle one and a front baffle two. Front baffle one is connected to the front end of one of the lower bosses, and front baffle two is connected to the front end of the other lower boss. The lower bosses, positioned on both sides of the lower housing, limit and balance the battery bracket. The front limiting seat is connected to the front end of one of the lower bosses via front baffle one, and to the front end of the other lower boss via front baffle two. Front baffle one and front baffle two are arranged in parallel to abut against the end face of the battery bracket, providing stable and precise positioning of the battery bracket. This achieves the effect of simplifying the structure and improving the stability of the battery bracket placement.

[0018] Preferably, the upper boss has two protrusions positioned side-by-side within the upper housing cavity. The rear limiting seat includes a rear baffle one and a rear baffle two. Rear baffle one is connected to one end of the lower boss on one side, and rear baffle two is connected to the other end of the lower boss on the other side. Rear baffle one is connected to the rear end of one of the lower bosses, and rear baffle two is connected to the rear end of the other lower boss. Rear baffle one and rear baffle two are arranged in parallel to cooperate with front baffle one and front baffle two to abut against the end face of the battery holder, providing stable and precise positioning of the battery holder. This achieves the effect of simplifying the structure and improving the placement stability of the battery holder.

[0019] Preferably, both front baffle one and front baffle two are vertically connected to front reinforcing ribs, which are connected to the inner cavity of the lower housing. Similarly, both rear baffle one and rear baffle two are vertically connected to rear reinforcing ribs, which are also connected to the inner cavity of the lower housing. The front reinforcing ribs, by simultaneously connecting front baffle one and front baffle two to the cavity wall and bottom of the lower housing, enhance the structural strength of front baffle one and front baffle two, preventing breakage within the battery bracket. Likewise, the rear reinforcing ribs, by simultaneously connecting rear baffle one and rear baffle two to the cavity wall and bottom of the lower housing, enhance the structural strength of rear baffle one and rear baffle two, preventing breakage within the battery bracket, thus providing stable support for the battery bracket. This achieves the effect of enhancing the structural strength of the component and the stability of the lithium battery placement.

[0020] Preferably, the fixing slot includes fixing slot one and fixing slot two. Fixing slot one is located in the lower housing, and fixing slot two is located in the upper housing. Fixing slot one has a positioning hole, and the taillight cover is connected to a positioning post, which is inserted into the positioning hole. Fixing slot two is connected to a limiting post, and the taillight cover has a limiting slide groove, which is inserted into the limiting post. Fixing slot one and fixing slot two are arranged opposite to each other, so that the taillight cover is fixed in fixing slot one by the positioning post. Then, the upper and lower housings are joined together so that the limiting post is inserted into the limiting slide groove to quickly fix the taillight cover. There are multiple pairs of limiting posts and limiting slide grooves, so that the taillight cover is completely fixed and cannot move. This achieves the effect of improving the stability and efficiency of component assembly.

[0021] Preferably, the upper housing is connected to a fixing stud with a screw hole, and the discharge socket is connected to a mounting ear with a through hole. The mounting ear is bolted to the fixing stud. The fixing stud allows for quick and easy bolting between the upper housing and the mounting ear, facilitating both rapid assembly and easy disassembly and maintenance.

[0022] Preferably, the upper housing has a fixing groove into which a sealing ring is fitted, and the lower housing has a fixing protrusion that engages with the fixing groove and presses against the sealing ring. The sealing ring is embedded in the fixing groove, allowing the fixing protrusion to press against the sealing ring during the mating installation of the upper and lower housings. This creates a labyrinthine seal formed by the fixing protrusion and the fixing groove, resulting in a complete seal and preventing liquid impurities from entering the inner cavity from the connection point between the upper and lower housings. This improves the sealing performance of the housing.

[0023] The beneficial effects of this utility model are: the housing assembly simplifies the structure, improves production efficiency and saves resources; the lithium battery is placed stably and is not easy to loosen and has a high degree of fit; the housing is easy to handle and plug in for daily use; the components are easy to assemble and maintain; the assembly stability and efficiency of lithium battery and battery bracket are improved; the structural strength of the components is enhanced; and the sealing performance of the housing is improved. Attached Figure Description

[0024] Figure 1 This is a perspective view of the utility model;

[0025] Figure 2 yes Figure 1 Exploded view;

[0026] Figure 3 yes Figure 1 A sectional view;

[0027] Figure 4 This is a structural diagram of the battery bracket, taillight cover, and discharge socket;

[0028] Figure 5 This is a schematic diagram of the lower shell structure;

[0029] Figure 6 This is a schematic diagram of the upper shell structure.

[0030] In the diagram: 1. Upper housing, 2. Upper boss, 3. Upper groove, 4. Lower housing, 5. Lower boss, 6. Lower groove, 7. Anti-slip strip, 8. Front bracket, 9. Rear bracket, 10. Front limit seat, 11. Rear limit seat, 12. Taillight cover, 13. Fixing stud 1, 14. Discharge socket, 15. Mounting hole, 16. Connecting plate, 17. Battery holder, 18. Connecting block, 19. Connecting slot, 20. Front baffle 1 21. Front baffle two, 22. Recessed groove, 23. Rear baffle one, 24. Rear baffle two, 25. Front reinforcing rib plate, 26. Rear reinforcing rib plate, 27. Fixing groove one, 28. Fixing groove two, 29. Positioning hole, 30. Positioning post, 31. Limiting insert post, 32. Limiting slide groove, 33. Mounting ear, 34. Fixing groove, 35. Sealing ring, 36. Fixing protrusion, 37. Fixing stud two, 38. Connecting post. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of components illustrated in these embodiments do not limit the scope of this application. For ease of illustration, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, an element described as being “below” other elements or features would be positioned “up” other elements or features. Thus, the exemplary term “down” can include both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. It should also be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale. Techniques, processes, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, processes, and equipment should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.

[0034] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0035] Example 1:

[0036] like Figure 1 , 2As shown in Figures 5 and 6, a lithium battery casing assembly includes an upper casing 1, the inner surface of which has an inwardly protruding structure and is designated as an upper boss 2, and the outer side of the upper casing 1 has an upper groove 3 at a corresponding position of the upper boss 2; a lower casing 4, which is sealed to the upper casing 1, the inner surface of which has an inwardly protruding structure and is designated as a lower boss 5, and the outer side of the lower casing 4 has a lower groove 6 at a corresponding position of the lower boss 5, the lower groove 6 being connected to an anti-slip strip 7; and several battery brackets, the upper side of which is engaged with the upper boss 2, and the lower side of which is engaged with the lower boss 2. 5. The battery bracket includes a front bracket 8 and a rear bracket 9, which are detachably connected; a front limiting seat 10, which is connected to the lower housing 4 and abuts against the front end of the battery bracket; a rear limiting seat 11, which is connected to the lower housing 4 and abuts against the rear end of the battery bracket; a taillight cover 12, which is detachably connected to the fixing grooves on both the upper housing 1 and the lower housing 4; and a discharge socket 14, which is detachably connected to the mounting hole 15 on the upper housing 1.

[0037] like Figure 4 As shown, both the front bracket 8 and the rear bracket 9 include a connecting plate 16, a battery tube 17 and a docking block 18. The battery tube 17 is connected to one end of the connecting plate 16, and the other end of the battery tube 17 is connected to the docking block 18. The connecting plate 16 is provided with a docking slot 19 that is adapted to the docking block 18.

[0038] like Figure 2 , 5 As shown, the lower boss 5 has two sides placed side by side in the cavity of the lower housing 4. The front limiting seat 10 includes a front baffle 1 20 and a front baffle 2 21. The front baffle 1 20 is connected to the front end of the lower boss 5 on one side, and the front baffle 2 21 is connected to the front of the lower boss 5 on the other side.

[0039] like Figure 2 , 6 As shown, the upper boss 2 has two sides placed side by side in the cavity of the upper housing 1. The rear limiting seat 11 includes a rear baffle 1 23 and a rear baffle 24. The rear baffle 1 23 is connected to one end of the lower boss 5 on one side, and the rear baffle 24 is connected to the other end of the lower boss 5 on the other side.

[0040] like Figure 5 As shown, front baffle 1 20 and front baffle 21 are both vertically connected to front reinforcing ribs 25, which are connected to the inner cavity of the lower housing 4. Rear baffle 1 23 and rear baffle 24 are both vertically connected to rear reinforcing ribs 26, which are connected to the inner cavity of the lower housing 4.

[0041] like Figure 2 , 5As shown in Figure 6, the fixing groove includes fixing groove 1 27 and fixing groove 28. Fixing groove 1 27 is placed in the lower housing 4, and fixing groove 28 is placed in the upper housing 1. Fixing groove 1 27 is provided with positioning hole 29. The taillight cover 12 is connected to positioning post 30, and positioning post 30 is inserted into positioning hole 29. Fixing groove 28 is connected to limit post 31. The taillight cover 12 is provided with limit slide groove 32, and limit post 31 is inserted into limit slide groove 32.

[0042] like Figure 2 As shown, the upper housing 1 is connected to a fixing stud 13, which has a screw hole. The discharge socket 14 is connected to a mounting ear 33, which has a through hole. The mounting ear 33 is bolted to the fixing stud 13.

[0043] like Figure 2 , 3 As shown, the upper housing 1 is provided with a fixing groove 34, and a sealing ring 35 is fitted into the fixing groove 34. The lower housing 4 is provided with a fixing protrusion 36, which is fitted into the fixing groove 34 and pressed against the sealing ring 35.

[0044] like Figure 1-6 As shown: The upper housing 1 is connected to a fixing stud 2 37, which has a screw hole 2. The lower housing 4 is connected to a connecting post 38, which has a through hole 2. The connecting post 38 is bolted to the fixing stud 2 37. The upper housing 1 and the lower housing 4 are fixed by bolting the fixing stud 2 37 to the connecting post 38, so as to completely fix the upper and lower housings 4 and press the sealing ring 35.

[0045] The upper shell 1 is provided with a recessed groove 22 to make the shell more stable when laid flat and picked up, and to prevent it from slipping.

[0046] This embodiment takes four sets of battery brackets consisting of four front brackets 8 and four rear brackets 9 as an example.

[0047] The sealing ring 35 is a sealing structure made of conventional rubber material.

[0048] The inner wall of the screw hole 1 on the fixing column 13 is provided with internal thread. The mounting ear 33 is connected to the bolt (not shown in the figure) through the through hole 1 and the bolt is connected to the screw hole 1 to fix the discharge socket 14. The inner wall of the screw hole of the fixing screw 2 37 is provided with internal thread. The connecting column 38 is connected to the bolt (not shown in the figure) through the through hole 2 and the bolt is connected to the screw hole 2 to fix the upper housing 1 and the lower housing 4.

[0049] When assembling the housing assembly after connecting all electrical components (not shown in the figure): insert the battery bracket between the front bracket 8, the rear bracket 9, the upper boss 2 and the lower boss 5 (the battery tube 17 contains a lithium battery); insert the positioning pin 30 into the positioning hole 29 to fix the taillight cover 12; when the fixing stud 13 is bolted to the mounting ear 33, fix the discharge socket 14; close the upper housing 1 and the lower housing 4, wherein the limiting pin 31 is inserted along the limiting groove 32 until the fixing protrusion 36 is inserted into the fixing groove 34 to press the sealing ring 35; bolt the fixing pin 2 35 to the connecting pin 38 to fix it, thus completing the assembly of the lithium battery housing assembly.

[0050] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A lithium battery casing assembly, characterized in that, include The upper shell (1) has an inwardly protruding structure on its inner cavity surface and is provided as an upper boss (2). The upper shell (1) has an upper groove (3) at the corresponding position of the upper boss (2) on its outer side. The lower housing (4) is sealed to the upper housing (1). The inner cavity surface of the lower housing (4) has an inward protruding structure and is set as a lower boss (5). The lower housing (4) is set as a lower groove (6) at the corresponding position of the lower boss (5) on the outer side of the lower housing (4). The lower groove (6) is connected to an anti-slip strip (7). A plurality of battery brackets, wherein the upper side of the battery bracket is engaged with the upper boss (2) and the lower side of the battery bracket is engaged with the lower boss (5), the battery bracket includes a front bracket (8) and a rear bracket (9), and the front bracket (8) and the rear bracket (9) are detachably connected. Front limiting seat (10), the front limiting seat (10) is connected to the lower housing (4), and the front limiting seat (10) abuts against the front end of the battery bracket; Rear limiting seat (11), the rear limiting seat (11) is connected to the lower housing (4), and the rear limiting seat (11) abuts against the rear end of the battery bracket; The taillight cover (12) is provided with a fixing groove in both the upper housing (1) and the lower housing (4), and the taillight cover (12) is detachably connected to the fixing groove. The discharge socket (14) has a mounting hole (15) on the upper housing (1), and the discharge socket (14) is detachably connected to the mounting hole (15).

2. A lithium battery casing assembly according to claim 1, characterized in that, Both the front bracket (8) and the rear bracket (9) include a connecting plate (16), a battery tube (17) and a docking block (18). The battery tube (17) is connected to one end of the connecting plate (16), and the other end of the battery tube (17) is connected to the docking block (18). The connecting plate (16) is provided with a docking slot (19) that is compatible with the docking block (18).

3. A lithium battery casing assembly according to claim 1, characterized in that, The lower boss (5) has two sides placed in the cavity of the lower housing (4). The front limiting seat (10) includes a front baffle one (20) and a front baffle two (21). The front baffle one (20) is connected to the front end of the lower boss (5) on one side, and the front baffle two (21) is connected to the front of the lower boss (5) on the other side.

4. A lithium battery casing assembly according to claim 3, characterized in that, The upper boss (2) has two sides placed side by side in the cavity of the upper housing (1). The rear limiting seat (11) includes a rear baffle one (23) and a rear baffle two (24). The rear baffle one (23) is connected to one end of the lower boss (5) on one side, and the rear baffle two (24) is connected to the other end of the lower boss (5) on the other side.

5. A lithium battery casing assembly according to claim 4, characterized in that, Both the first front baffle (20) and the second front baffle (21) are vertically connected to a front reinforcing rib (25), which is connected to the inner cavity of the lower housing (4). Both the first rear baffle (23) and the second rear baffle (24) are vertically connected to a rear reinforcing rib (26), which is connected to the inner cavity of the lower housing (4).

6. A lithium battery casing assembly according to claim 1, characterized in that, The fixing groove includes fixing groove one (27) and fixing groove two (28). Fixing groove one (27) is placed in the lower housing (4), and fixing groove two (28) is placed in the upper housing (1). Fixing groove one (27) is provided with positioning hole (29). The taillight cover (12) is connected with positioning post (30). The positioning post (30) is inserted into the positioning hole (29). Fixing groove two (28) is connected with limiting post (31). The taillight cover (12) is provided with limiting slide groove (32). The limiting post (31) is inserted into the limiting slide groove (32).

7. A lithium battery casing assembly according to claim 1, characterized in that, The upper housing (1) is connected to a fixing stud (13), the fixing stud (13) is provided with a screw hole, the discharge socket (14) is connected to a mounting ear (33), the mounting ear (33) is provided with a through hole, and the mounting ear (33) is bolted to the fixing stud (13).

8. A lithium battery casing assembly according to claim 1, characterized in that, The upper housing (1) is provided with a fixing groove (34), and a sealing ring (35) is fitted into the fixing groove (34). The lower housing (4) is provided with a fixing protrusion (36), which is fitted into the fixing groove (34) and pressed against the sealing ring (35).

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