A lithium battery packaging case

Abstract

The utility model relates to lithium battery technical field especially relates to a lithium battery packaging shell. Its technical scheme includes: the box body, its inside contains the battery module, the top cover, covers on the box body top, the both sides wall of box body is provided with the clamping groove and the lug respectively, and the lug is structured as with the clamping groove of adjacent box body interengagement, to realize the transverse splicing of multiple box bodies, the fixed frame top of battery module is equipped with the top plate with the jack, the both ends of top cover are equipped with the downward extension plug -in block, when top cover installation, the plug -in block is through the jack and realizes the positioning connection. The utility model through above -mentioned unique structure design has realized multiple box body convenient transverse splicing, satisfies different scale battery pack demand. Meanwhile, the positioning connection of top cover plug -in block and fixed frame top plate jack, strengthened the structure stability, has guaranteed the battery module safety, has promoted the practicality and reliability of lithium battery packaging shell.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, specifically to a lithium battery packaging shell. Background Technology

[0002] In today's era of rapid technological advancement, battery packs, as crucial energy storage and supply devices, are widely used in numerous fields such as electric vehicles, energy storage systems, and portable electronic devices. Their performance, stability, and ease of maintenance directly affect the normal operation and lifespan of related equipment. Therefore, continuously improving and enhancing the technological level of battery packs is of significant practical importance.

[0003] During battery pack assembly, the alignment accuracy between the top cover and the battery module is crucial. However, existing battery pack designs often lack an effective and precise alignment mechanism. Some battery packs rely on manual visual inspection or simple positioning marks for alignment when installing the top cover, which results in significant errors. Inaccurate alignment between the top cover and the battery module leads to unreliable electrical connections, easily causing poor contact problems, and consequently affecting the battery pack's power transmission and stability. Furthermore, inaccurate alignment can also damage the sealing structure between the top cover and the battery module, reducing the battery pack's protective performance and increasing safety hazards. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a lithium battery packaging shell, which solves the problems mentioned in the background art.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows: A lithium battery packaging housing, comprising: The box contains the battery module. A top cover, covering the top of the box body; The two side walls of the box are respectively provided with slots and protrusions, and the protrusions are constructed to fit into the slots of adjacent boxes to achieve horizontal splicing of multiple boxes. The battery module mounting bracket has a top plate with insertion holes at its top; The top cover has downward-extending inserts at both ends. When the top cover is installed, the inserts pass through the insertion holes to achieve positioning and connection.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the protrusion has a dovetail-shaped structure, and the slot has a contour that matches the dovetail-shaped protrusion.

[0008] The beneficial effects of adopting the above-mentioned further solutions are: The dovetail-shaped protrusions and matching grooves interlock, creating a unique geometric design that generates significant friction and mechanical interlocking force when multiple boxes are horizontally joined. Compared to ordinary joining structures, this greatly enhances the stability of the joint, effectively withstanding various stresses generated during battery pack use, such as vibration and impact. This ensures the overall structural stability of the battery pack, preventing loosening or separation, thereby improving the safety and reliability of the battery pack.

[0009] Furthermore, the two ends of the box body are respectively provided with wire holes and grooves, and the grooves are used to accommodate the insert of the top cover.

[0010] The beneficial effects of adopting the above-mentioned further solutions are: The wire hole facilitates the connection between external wiring and the battery module, enabling the battery pack to transmit and interact with external devices. The groove accommodates the top cover's insert, serving two purposes: firstly, it stores and protects the insert from external impacts; secondly, the groove and insert work together to further assist in positioning and fixing the relative position of the top cover, battery module, and housing, enhancing the overall structural stability and making the top cover installation more secure, reducing the impact on the battery module caused by top cover movement.

[0011] Furthermore, the fitting gap between the insert block and the insertion hole is less than 0.5mm to achieve precise alignment between the top cover and the battery module.

[0012] The beneficial effects of adopting the above-mentioned further solutions are: A smaller fit clearance ensures that the insert can accurately pass through the socket during installation, achieving precise alignment between the top cover and the battery module. This precise alignment is crucial for ensuring the overall performance of the battery pack. It guarantees a tight seal between the top cover and the battery module, preventing external moisture, dust, and other impurities from entering the battery pack, thus protecting it from damage and extending its lifespan. Simultaneously, precise alignment ensures reliable electrical connection between the top cover and the battery module, avoiding problems such as poor contact caused by inaccurate alignment, thereby improving the stability and safety of the battery pack.

[0013] Furthermore, the mounting bracket is provided with a longitudinal slot, into which the battery cell is vertically inserted.

[0014] The beneficial effects of adopting the above-mentioned further solutions are: The vertical slot design simplifies and speeds up cell installation. Operators simply insert the cell vertically into the slot to complete the initial installation, eliminating the need for complex tools and procedures, thus significantly improving production efficiency. Simultaneously, the slots effectively position and secure the cells, ensuring stable placement within the mounting bracket and preventing movement or displacement during use. This guarantees stable battery module performance and enhances battery pack safety and reliability. Furthermore, this installation method facilitates cell heat dissipation. The gaps between the slots allow for airflow, effectively dissipating heat generated by the cells, reducing battery pack temperature, and extending cell lifespan.

[0015] Furthermore, the side wall of the fixing frame is provided with wiring electrodes, and the position corresponds to the wire hole of the box.

[0016] The beneficial effects of adopting the above-mentioned further solutions are: The wiring electrodes are located on the side wall of the mounting bracket and correspond to the wiring holes on the housing, allowing external wiring to be easily connected to the electrodes through the wiring holes. This enables quick and accurate electrical connection between the battery module and external circuits. This design simplifies the wiring connection process, reduces errors and malfunctions during connection, and improves the efficiency of battery pack installation and maintenance. Furthermore, when wiring maintenance or replacement is required, operators can easily locate the wiring electrodes through the wiring holes without disassembling the entire battery pack, significantly reducing maintenance difficulty and cost, and improving the maintainability of the battery pack.

[0017] Furthermore, the box body and the top cover are connected and fixed by adhesive.

[0018] The beneficial effects of adopting the above-mentioned further solutions are: Using adhesive to connect the casing and top cover creates a uniform and tight bonding layer between them. This connection method effectively resists external forces such as vibration and impact, ensuring a tight fit between the top cover and casing under various operating conditions. This prevents damage to the internal battery modules or potential safety hazards caused by loosening. Compared to traditional mechanical connections, adhesive bonding leaves no visible connection marks on the casing and top cover, resulting in a cleaner and more aesthetically pleasing appearance for the battery pack. Furthermore, adhesive bonding provides a degree of sealing, preventing moisture, dust, and other impurities from entering the battery pack, further protecting the battery modules and extending its lifespan.

[0019] This utility model provides a lithium battery packaging shell. It has the following beneficial effects: The two side walls of the housing are respectively equipped with slots and dovetail-shaped protrusions. When multiple housings are horizontally spliced, the dovetail protrusions interlock with the slots of adjacent housings. The dovetail structure has a unique geometric advantage; its wider top and narrower bottom shape generates greater friction and mechanical interlocking force between the protrusions and slots after splicing, greatly enhancing the stability of the splicing. It can effectively withstand various stresses generated during battery pack use, ensuring the overall stability of the battery pack structure composed of multiple housings.

[0020] The inserts at both ends of the top cover pass through the insertion holes at the top of the battery module mounting bracket, and the fit gap between the inserts and the insertion holes is less than 0.5mm. This precise fit not only ensures accurate alignment between the top cover and the battery module, guaranteeing the accuracy of the top cover's installation position, but also creates a tight mechanical connection between the inserts and the insertion holes. This effectively limits relative movement between the top cover and the battery module, enhances the overall structural stability, and prevents damage to the battery module caused by top cover shaking.

[0021] The box has wire holes and grooves at both ends. The wire holes are used for external wiring connections, and the grooves are used to accommodate the top cover insert. This reasonable spatial layout makes full use of the internal and external space of the box, ensuring the normal installation of battery modules and wiring connections, while making the overall structure more compact, reducing unnecessary space waste, and allowing more battery modules to be installed in a limited space, thereby increasing the energy density of the battery pack. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0023] In the attached diagram: Figure 1 This is a schematic diagram of the main appearance of this utility model; Figure 2 This is a rear view schematic diagram of the present utility model; Figure 3 This is a rear-view exploded view schematic diagram of the present invention; Figure 4 This is a front view exploded structural diagram of the present invention.

[0024] The attached diagram lists the components represented by each number as follows: 1. Box body; 101. Slot; 102. Wire hole; 103. Groove; 104. Protrusion; 2. Top cover; 201. Insert block; 3. Battery module; 301. Top plate; 302. Insertion hole; 303. Wiring electrode; 304. Battery cell; 305. Fixing bracket. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows: Example 1 A lithium battery packaging housing, comprising: Box 1, which houses battery module 3; The top cover 2 covers the top of the housing 1. The housing 1 and the top cover 2 are connected and fixed with adhesive. Using adhesive to connect the housing 1 and the top cover 2 creates a uniform and tight bonding layer between them. This connection method effectively resists external forces such as vibration and impact, ensuring that the top cover 2 and the housing 1 remain tightly connected under various operating conditions, preventing damage to the internal battery module 3 or potential safety hazards due to loosening. Compared with traditional mechanical connections, adhesive bonding does not leave obvious connection marks on the housing 1 and the top cover 2, making the battery pack more aesthetically pleasing and cleaner. Furthermore, adhesive bonding also provides a certain degree of sealing, preventing external moisture, dust, and other impurities from entering the battery pack, further protecting the battery module 3 and extending the battery pack's lifespan. The two side walls of the box 1 are respectively provided with slots 101 and protrusions 104, and the protrusions 104 are constructed to interlock with the slots 101 of adjacent boxes to achieve lateral splicing of multiple boxes 1. The protrusions 104 have a dovetail-shaped structure, and the slots 101 have a contour that matches the dovetail-shaped protrusions 104. The dovetail-shaped protrusions 104 and the matching contour slots 101 interlock with each other. This unique geometric design can generate greater friction and mechanical interlocking force when multiple boxes 1 are spliced ​​laterally. Compared with ordinary splicing structures, the stability of the splicing is greatly enhanced, and it can effectively withstand various stresses generated during the use of the battery pack, such as vibration and impact, ensuring the overall structural stability of the battery pack composed of multiple boxes 1, which is not easy to loosen or separate, thereby improving the safety and reliability of the battery pack. The top of the mounting bracket 305 of the battery module 3 is provided with a top plate 301 with a socket 302; The top cover 2 has downwardly extending inserts 201 at both ends. When the top cover 2 is installed, the inserts 201 pass through the insertion holes 302 to achieve positioning connection.

[0027] Example 2 To further improve the stability and protection performance of the battery pack structure, for example, such as Figures 1 to 4 As shown, this utility model also includes: The two ends of the housing 1 are respectively provided with wire holes 102 and grooves 103. The grooves 103 are used to accommodate the plug 201 of the top cover 2. The wire holes 102 facilitate the connection between external lines and the battery module 3, enabling the battery pack to transmit and interact with external devices. The grooves 103, which accommodate the plug 201 of the top cover 2, serve two purposes: firstly, they store and protect the plug 201, preventing it from being damaged by external impacts; secondly, the grooves 103 and the plug 201 work together to further assist in positioning and fixing the relative positions of the top cover 2, the battery module 3, and the housing 1, enhancing the stability of the overall structure, making the top cover 2 more securely installed, and reducing the impact on the battery module 3 caused by the shaking of the top cover 2.

[0028] The fitting gap between the insert 201 and the socket 302 is less than 0.5mm to achieve precise alignment between the top cover 2 and the battery module 3. This smaller gap ensures that the insert 201 can accurately penetrate the socket 302 during installation, achieving precise alignment between the top cover 2 and the battery module 3. This precise alignment is crucial for ensuring the overall performance of the battery pack. It ensures the seal between the top cover 2 and the battery module 3, preventing external moisture, dust, and other impurities from entering the battery pack, thus protecting the battery module 3 from damage and extending its lifespan. Simultaneously, precise alignment also ensures reliable electrical connection between the top cover 2 and the battery module 3, avoiding problems such as poor contact caused by inaccurate alignment, and improving the stability and safety of the battery pack.

[0029] Example 3 To optimize the installation efficiency, performance stability, and maintenance convenience of battery modules, for example, such as Figures 1 to 4 As shown, this utility model also includes: The mounting bracket 305 has vertical slots into which the battery cell 304 is vertically inserted. This vertical slot design simplifies and speeds up the installation process, allowing operators to simply insert the battery cell 304 vertically into the slot for initial installation, eliminating the need for complex tools and procedures and significantly improving production efficiency. Simultaneously, the slots effectively position and secure the battery cell 304 within the mounting bracket 305, ensuring its stable placement and preventing shaking or displacement during use. This guarantees the stable performance of the battery module 3 and enhances the safety and reliability of the battery pack. Furthermore, this installation method facilitates heat dissipation for the battery cell 304. The gaps between the slots allow for airflow, enabling timely dissipation of heat generated by the battery cell 304, reducing the battery pack temperature and extending the battery cell's lifespan.

[0030] The mounting bracket 305 has a wiring electrode 303 on its side wall, which corresponds to the wire hole 102 in the housing 1. The wiring electrode 303's placement on the side wall of the mounting bracket 305 and its alignment with the wire hole 102 in the housing 1 allows external wiring to be easily connected to the wiring electrode 303 through the wire hole 102, achieving a quick and accurate electrical connection between the battery module 3 and the external circuit. This design simplifies the wiring connection process, reduces errors and malfunctions during connection, and improves the efficiency of battery pack installation and maintenance. Furthermore, when wiring maintenance or replacement is required, operators can easily locate the wiring electrode 303 through the wire hole 102 without disassembling the entire battery pack, significantly reducing maintenance difficulty and cost, and improving the maintainability of the battery pack.

[0031] Working principle: The battery cell 304 is vertically inserted into the longitudinal slot inside the fixing frame 305. The slot is used to initially position and fix the battery cell 304, ensuring that the battery cell 304 is stably placed inside the fixing frame 305.

[0032] When the top cover 2 is installed, the downward-extending inserts 201 at both ends penetrate the insertion holes 302 on the top plate 301 of the battery module 3 mounting bracket 305. Since the fit between the inserts 201 and the insertion holes 302 is less than 0.5mm, this precise fit ensures accurate alignment between the top cover 2 and the battery module 3, guaranteeing the accuracy of the top cover 2's installation position. Simultaneously, the grooves 103 at both ends of the housing 1 accommodate the inserts 201 of the top cover 2, further assisting in positioning and fixing the relative positions of the top cover 2, the battery module 3, and the housing 1.

[0033] After the top cover 2 is placed on top of the box body 1, the box body 1 and the top cover 2 are connected and fixed by adhesive, so that the top cover 2 and the box body 1 form a closed whole, which protects the battery module 3 contained inside.

[0034] When multiple boxes 1 need to be used together, the slots 101 and the dovetail-shaped protrusions 104 provided on the two side walls of the box 1 respectively are used to fit the dovetail-shaped protrusions 104 of one box 1 into the slots 101 of the adjacent box 1. The dovetail-shaped structure design makes the splicing more stable, thereby realizing the horizontal splicing of multiple boxes 1 to meet the needs of battery packs of different sizes.

[0035] The mounting bracket 305 has a wiring electrode 303 on its side wall, and its position corresponds to the wire hole 102 of the box 1. External circuits can be connected to the wiring electrode 303 through the wire hole 102 to realize the electrical connection between the battery module 3 and the external circuit, so as to supply power to external devices or perform charging operations.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lithium battery packaging casing, characterized in that, include: The box (1) contains the battery module (3); Top cover (2) covers the box body (1); The two side walls of the box (1) are respectively provided with slots (101) and protrusions (104), and the protrusions (104) are constructed to fit into the slots (101) of the adjacent box to realize the horizontal splicing of multiple boxes (1); The top of the mounting bracket (305) of the battery module (3) is provided with a top plate (301) with a socket (302). The top cover (2) has downwardly extending inserts (201) at both ends. When the top cover (2) is installed, the inserts (201) pass through the insertion holes (302) to achieve positioning connection.

2. The lithium battery packaging housing according to claim 1, characterized in that: The protrusion (104) has a dovetail-shaped structure, and the slot (101) has a profile that matches the dovetail-shaped protrusion (104).

3. The lithium battery packaging housing according to claim 1, characterized in that: The box body (1) has wire holes (102) and grooves (103) at both ends, and the grooves (103) are used to accommodate the inserts (201) of the top cover (2).

4. The lithium battery packaging housing according to claim 1, characterized in that: The gap between the insert (201) and the socket (302) is less than 0.5mm, so as to achieve precise alignment between the top cover (2) and the battery module (3).

5. A lithium battery packaging housing according to claim 1, characterized in that: The mounting bracket (305) has a longitudinal slot, and the battery cell (304) is vertically inserted into the slot.

6. The lithium battery packaging housing according to claim 1, characterized in that: The side wall of the fixing frame (305) is provided with wiring electrodes (303), and the position corresponds to the wire hole (102) of the box (1).

7. A lithium battery packaging housing according to claim 1, characterized in that: The box body (1) and the top cover (2) are connected and fixed by adhesive.

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