Shell and battery pack

Abstract

The utility model discloses a battery pack which comprises a single battery and a shell, and the single battery is assembled in the shell. Specifically, the shell comprises a shell body, a handle and a connecting assembly, and the shell body is provided with a first limiting groove. The handle is provided with a first through hole which is opposite to the first limiting groove. The connecting assembly comprises a limiting piece and a locking piece, the limiting piece is arranged on the side, away from the shell, of the handle and penetrates from the first penetrating hole to the first limiting groove, and the locking piece sequentially penetrates through the limiting piece and the handle and is connected with the shell. The shell and the battery pack solve the technical problem of improving the connection stability of the battery pack shell and a handle.

Description

Technical Field

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

[0002] In battery pack design, the connection method between the outer shell and the handle plays a crucial role in the overall structure and user experience. As a core component of an energy storage system, the battery pack needs to possess good strength and durability to ensure battery safety during transportation and use. Existing battery pack outer shells and handles are typically connected using bolts or plastic clips. However, these connection methods can lead to instability due to handle twisting, loosening of connectors, and other issues, potentially causing damage to the battery pack during movement. Utility Model Content

[0003] One objective of this invention is to provide a housing and battery pack that address the technical problem of improving the stability of the connection between the battery pack housing and the handle.

[0004] To achieve the above objectives, the present invention provides a solution: a housing and battery pack, comprising: a housing, a handle, and a connecting assembly. The housing has a first limiting groove. The handle has a first through hole, which is opposite to the first limiting groove. The connecting assembly includes a limiting member and a locking member. The limiting member is disposed on the side of the handle away from the housing and passes through the first through hole into the first limiting groove. The locking member passes through the limiting member and the handle in sequence and is connected to the housing.

[0005] Optionally, the limiting member includes a first abutting part and a limiting part. The first abutting part is disposed on the side of the handle away from the housing. One end of the limiting part is disposed on the first abutting part, and the other end passes through the first through hole into the first limiting groove. The locking member passes through the first abutting part and the handle in sequence and is connected to the housing.

[0006] Optionally, the locking member includes a connecting part and a second abutting part. The second abutting part is disposed on the side of the limiting member away from the handle and abuts against the limiting member. One end of the connecting part is disposed on the second abutting part, and the other end passes through the first through hole and the handle in sequence and is connected to the housing.

[0007] Optionally, the housing has a second through hole, and the handle has a third through hole, with the second and third through holes facing each other. The housing includes a mating component, which is disposed in the second through hole. The mating component has a locking hole communicating with the outside of the housing. A locking component is sequentially inserted through the third through hole and the second through hole to the locking hole. The locking component is threadedly connected to the mating component through the locking hole, and the locking component is connected to the housing through the mating component.

[0008] Optionally, the outer wall of the mating part is provided with an insertion groove. The housing includes a first base and a fixing part. A first limiting groove and a second through hole are formed in the first base. The mating part is disposed in the second through hole. One end of the fixing part is connected to the inner wall of the second through hole, and the other end is inserted into the insertion groove to restrict the movement of the mating part.

[0009] Optionally, the mating component includes a second base and a plurality of limiting teeth, with a locking hole formed in the second base and the limiting teeth disposed on the outer wall of the second base. A toothed groove is formed on the inner wall of the second through hole, and the limiting teeth are inserted into the toothed groove.

[0010] Optionally, the limiting teeth include a first parting tooth and a second parting tooth. The first parting tooth and the second parting tooth are respectively disposed at opposite ends of the second base. The opposite side walls of the first parting tooth and the second parting tooth, together with the outer side wall of the second base, form an insertion groove, and part of the shell is inserted into the insertion groove.

[0011] Optionally, the housing includes a first base and a support portion connected to each other, a first limiting groove is formed on the first base, the support portion is disposed on the first base and extends away from the first limiting groove, and a part of the handle is opposite to the support portion.

[0012] Optionally, a second limiting groove is provided on the side of the first base facing the handle, and part of the handle is received in the second limiting groove.

[0013] Optionally, a frosted structure is provided between the side wall of the locking member near the handle and the side wall of the limiting member near the locking member.

[0014] To achieve the above objectives, the present invention provides a solution as follows: a battery pack, comprising: a single battery cell and a casing, wherein the single battery cell is assembled in the casing.

[0015] The beneficial effects of this utility model are as follows:

[0016] A battery pack includes: a single battery cell and a casing, wherein the single battery cell is assembled in the casing. Specifically, the casing includes: a housing, a handle, and a connecting assembly, wherein the housing has a first limiting groove. The handle has a first through hole, which is opposite to the first limiting groove. The connecting assembly includes a limiting member and a locking member, wherein the limiting member is disposed on the side of the handle away from the housing and passes through the first through hole to the first limiting groove, and the locking member passes through the limiting member and the handle in sequence and is connected to the housing.

[0017] In practical applications, the limiting member, passing through the first through hole and the first limiting groove, restricts the rotation of the handle. When the handle is torsioned by an external force, the limiting member will not rotate around the axis of the first through hole, effectively preventing the limiting member from rotating or moving relative to the locking member. Therefore, even when the handle is subjected to torsional force, the connection between the locking member and the housing remains stable, reducing the impact of handle torsion on the stability of the locking member connection and avoiding locking failure caused by handle torsion. This design improves the reliability of the entire locking mechanism, ensuring that torsion under external force during use will not cause structural loosening or failure, thereby enhancing the safety and durability of the housing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the outer shell provided in this embodiment of the utility model;

[0020] Figure 2 This is a cross-sectional view provided by an embodiment of the present invention to show the internal structure of the outer shell;

[0021] Figure 3 This is provided by the embodiment of the present utility model. Figure 2 A magnified view of a portion of region A in the middle;

[0022] Figure 4 This is a cross-sectional structural diagram provided by an embodiment of the present invention to show the internal structure of the housing without the handle and connecting components;

[0023] Figure 5 This is provided by the embodiment of the present utility model. Figure 4 A magnified view of a portion of region B in the middle;

[0024] Figure 6 This is a partial structural schematic diagram of the limiting member provided in an embodiment of the present utility model;

[0025] Figure 7 This is a partially enlarged schematic diagram of region C in the 6 embodiments of this utility model;

[0026] Figure 8 This is a cross-sectional view provided by an embodiment of the present invention to illustrate the internal structure of the mating parts;

[0027] Figure 9 This is provided by the embodiment of the present utility model. Figure 8 A magnified view of a portion of region D in the middle;

[0028] Figure 10 This is a cross-sectional view provided by an embodiment of the present invention to illustrate the frosted structure.

[0029] Explanation of icon numbers:

[0030] 20. Shell; 21. First base; 211. First limiting groove; 212. Second limiting groove; 213. Tooth groove; 214. Second through hole; 22. Fixing part; 23. Supporting part; 30. Handle; 31. First through hole; 32. Third through hole; 40. Connecting assembly; 41. Limiting member; 411. First abutting part; 412. Limiting part; 42. Locking member; 421. Connecting part; 422. Second abutting part; 50. Mating part; 51. Locking hole; 52. Insertion groove; 53. Second base; 54. Limiting tooth; 541. First dividing tooth; 542. Second dividing tooth; 60. Frosted structure. Detailed Implementation

[0031] 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.

[0032] Please see Figures 1 to 5 As shown, Figure 1 This is a schematic diagram of the overall structure of the outer shell provided in an embodiment of this utility model. Figure 2 This is a cross-sectional view provided by an embodiment of the present invention to show the internal structure of the outer shell. Figure 3 This is provided by the embodiment of the present utility model. Figure 2 A magnified view of a portion of region A in the middle. Figure 4 This is a cross-sectional structural diagram provided by an embodiment of the present invention to show the internal structure of the housing without the handle 30 and connecting assembly 40 assembled. Figure 5 This is provided by the embodiment of the present utility model. Figure 4 A magnified view of a portion of region B in the middle.

[0033] This utility model provides a battery pack, including: a single battery cell and a casing, wherein the single battery cell is assembled in the casing.

[0034] Specifically, the outer casing includes a housing 20, a handle 30, and a connecting assembly 40. The housing 20 has a first limiting groove 211. The handle 30 has a first through hole 31, which is opposite to the first limiting groove 211. The connecting assembly 40 includes a limiting member 41 and a locking member 42. The limiting member 41 is located on the side of the handle 30 away from the housing 20 and passes through the first through hole 31 to the first limiting groove 211. The locking member 42 passes through the limiting member 41 and the handle 30 in sequence and is connected to the housing 20.

[0035] In practical applications, the limiting member 41, passing through the first through hole 31 to the first limiting groove 211, restricts the rotation of the handle 30. When the handle 30 is subjected to external force and twists, the limiting member 41 will not rotate around the axis of the first through hole 31, effectively preventing the limiting member 41 from rotating or moving relative to the locking member 42. Therefore, even when the handle 30 is subjected to torsional force, the connection between the locking member 42 and the housing 20 remains stable, reducing the impact of the handle 30's twisting on the connection stability of the locking member 42 and avoiding locking failure caused by the handle 30's twisting. This design improves the reliability of the entire locking mechanism, ensuring that torsion under external force during use will not cause structural loosening or failure, thereby enhancing the safety and durability of the housing.

[0036] In one embodiment, see Figure 3 The limiting member 41 includes a first abutting part 411 and a limiting part 412. The first abutting part 411 is disposed on the side of the handle 30 away from the housing 20. One end of the limiting part 412 is disposed on the first abutting part 411, and the other end passes through the first through hole 31 to the first limiting groove 211. The locking member 42 passes through the first abutting part 411 and the handle 30 in sequence and is connected to the housing 20.

[0037] In practical applications, the locking part presses the handle 30 against the housing 20 via the first abutment part 411. When an external force causes the handle 30 to twist, the limiting part 412 of the limiting member 41 effectively engages with the first limiting groove 211 to prevent the limiting member 41 from rotating. Simultaneously, the limiting part 412, by passing through the first through hole 31 to the first limiting groove 211, further restricts the range of motion of the limiting member 41, ensuring that the limiting member 41 will not rotate around the axis of the first through hole 31 when subjected to torque, thereby avoiding instability in the connection between the locking member 42 and the housing 20. Furthermore, the locking member 42, sequentially passing through the first abutment part 411 and the handle 30, ensures a firm and reliable connection between the locking member 42 and the housing 20, improving the overall structural stability, preventing locking failure due to torsion, and enhancing the safety of the housing.

[0038] In one embodiment, see Figure 3The locking member 42 includes a connecting part 421 and a second abutting part 422. The second abutting part 422 is disposed on the side of the limiting member 41 away from the handle 30 and abuts against the limiting member 41. One end of the connecting part 421 is disposed on the second abutting part 422, and the other end passes through the first through hole 31 and the handle 30 in sequence and is connected to the housing 20.

[0039] In practical applications, by placing the second abutment portion 422 on the side of the limiting member 41 away from the handle 30 and abutting against the limiting member 41, the locking member 42 can further enhance the stability of the structure. The connection portion 421 ensures that the locking member 42 is securely inserted through the first through hole 31 and the handle 30, and thus connected to the housing 20. This design makes the interaction between the locking member 42, the limiting member 41, and the handle 30 more intimate, enhancing the connection strength between the locking member 42 and the housing 20. In this way, the locking member 42 not only effectively restricts the rotation of the limiting member 41, but also ensures the structural stability of the housing under stress, avoiding loosening or connection instability caused by stress, thereby significantly improving the safety and reliability of the handle 30.

[0040] Further, see Figure 3 , Figure 4 and Figure 5 The housing 20 has a second through hole 214, and the handle 30 has a third through hole 32, with the second through hole 214 and the third through hole 32 facing each other. The outer shell includes a mating part 50, which is disposed in the second through hole 214. The mating part 50 has a locking hole 51 that communicates with the outside of the housing 20. A locking part 42 is sequentially inserted through the third through hole 32 and the second through hole 214 to the locking hole 51. The locking part 42 is threadedly connected to the mating part 50 through the locking hole 51, and the locking part 42 is connected to the housing 20 through the mating part 50.

[0041] In practical applications, a more stable and reliable connection is provided by setting a second through hole 214 and a third through hole 32 on the housing 20 and handle 30 respectively, and by setting a locking hole 51 in the second through hole 214 through the mating part 50. The locking part 42 passes through the third through hole 32, the second through hole 214 in sequence, and through the locking hole 51 of the mating part 50, achieving a stronger locking effect through a threaded connection. This structure ensures a firm connection between the locking part 42, the mating part 50, and the housing 20, avoiding loosening or instability caused by external forces, and enhancing the overall stability and torsional resistance of the handle 30. The tight connection between the mating part 50 and the housing 20 improves the strength of the structure, ensures the reliability and durability of the housing during long-term use, thereby significantly improving the safety of the housing and avoiding potential failures or risks caused by loose connections.

[0042] In this embodiment, the mating part 50 is made of copper, the outer shell is formed by injection molding, and the mating part 50 is embedded inside the shell 20.

[0043] Further, see Figure 5 , Figure 6 and Figure 7 The outer wall of the mating part 50 is provided with an insertion groove 52;

[0044] The housing 20 includes a first base 21 and a fixing part 22. A first limiting groove 211 and a second through hole 214 are formed in the first base 21. A mating part 50 is disposed in the second through hole 214. One end of the fixing part 22 is connected to the inner wall of the second through hole 214, and the other end is inserted into the insertion groove 52 to restrict the movement of the mating part 50.

[0045] In practical applications, by providing an insertion groove 52 on the outer wall of the mating part 50 and using the fixing part 22 to firmly connect the mating part 50 to the housing 20, the stability of the mating part 50 within the housing 20 is further enhanced. One end of the fixing part 22 is connected to the inner wall of the second through hole 214, and the other end is inserted into the insertion groove 52, thereby effectively restricting the movement of the mating part 50 within the second through hole 214. This structural design not only ensures the precise positioning of the mating part 50 during assembly but also prevents the mating part 50 from shifting or loosening under external forces. By restricting the free movement of the mating part 50, the overall stability and resistance to external interference of the locking system are improved, thereby effectively enhancing the strength and reliability of the housing 20, improving the stability of the housing during long-term use, ensuring the safety of the housing under high loads or frequent operations, and avoiding structural failures or malfunctions caused by component displacement.

[0046] Optionally, refer to Figure 5 and Figure 7 The mating part 50 includes a second base 53 and a plurality of limiting teeth 54. The locking hole 51 is opened in the second base 53, the limiting teeth 54 are disposed on the outer wall of the second base 53, and the inner wall of the second through hole 214 is provided with a tooth groove 213, and the limiting teeth 54 are inserted into the tooth groove 213.

[0047] In practical applications, a precise mating structure is formed by setting multiple limiting teeth 54 on the outer wall of the second base 53 of the mating component 50 and opening toothed grooves 213 on the inner wall of the second through hole 214. When the limiting teeth 54 are inserted into the toothed grooves 213, they can effectively prevent the mating component 50 from moving or rotating during the locking process. This structural design makes the connection between the mating component 50 and the housing 20 more stable and enhances the resistance during the locking process. The mating of the limiting teeth 54 and the toothed grooves 213 ensures that the mating component 50 will not be displaced when subjected to external forces, thereby improving the reliability and stability of the housing during use. This design, by effectively limiting the relative movement of the mating component 50, avoids potential loosening or failure problems caused by the instability of the mating component 50, improves the strength and safety of the overall locking system, and ensures the performance stability of the housing under high loads or long-term use.

[0048] In this embodiment, a plurality of limiting teeth 54 are fixedly connected to the outer wall of the second base 53 around the axis of the locking hole 51.

[0049] Furthermore, referring to Figure 5 , Figure 8 and Figure 9 The limiting tooth 54 includes a first tooth 541 and a second tooth 542. The first tooth 541 and the second tooth 542 are respectively disposed at opposite ends of the second base 53. The opposite side walls of the first tooth 541 and the second tooth 542 and the outer side wall of the second base 53 together form an insertion groove 52, and part of the shell 20 is inserted into the insertion groove 52.

[0050] In practical applications, the first dividing tooth 541 and the second dividing tooth 542 are located at both ends of the mating part 50, respectively. This allows for the even distribution of external force, preventing uneven displacement or rotation of the mating part 50 under stress and ensuring the stability of the overall structure. This structural design makes the connection between the mating part 50 and the housing 20 more robust, effectively preventing loosening or displacement caused by external forces. This improves the housing's compressive strength and durability, enhancing its overall stability and service life. Furthermore, the limiting tooth 54 enhances the reliability of the locking mechanism, ensuring efficient and safe operation of the housing during prolonged use.

[0051] In this embodiment, multiple first teeth 541 and multiple second teeth 542 are provided. Multiple first teeth 541 are arranged around the axial direction of the locking hole 51 at one end of the mating member 50, and multiple second teeth 542 are arranged around the axial direction of the locking hole 51 at the opposite end of the mating member 50. The first teeth 541 and the second teeth 542 are arranged opposite to each other.

[0052] In one embodiment, reference is made to Figure 3The housing 20 includes a first base 21 and a support 23 connected to each other. A first limiting groove 211 is formed on the first base 21. The support 23 is disposed on the first base 21 and extends away from the first limiting groove 211. A part of the handle 30 is opposite to the support 23.

[0053] In practical applications, the extension of the support portion 23 effectively increases the contact area between the handle 30 and the housing 20, thereby improving the overall structural stability. This design not only enhances the housing 20's resistance to external impacts but also prevents unnecessary displacement and twisting of the handle 30 when subjected to external forces, ensuring a more robust and reliable connection between the handle 30 and the housing 20.

[0054] Furthermore, referring to Figure 7 The first base 21 has a second limiting groove 212 on the side facing the handle 30, and part of the handle 30 is accommodated in the second limiting groove 212.

[0055] In practical applications, by creating a second limiting groove 212 on the side of the first base 21 facing the handle 30 and housing part of the handle 30 within this groove, the handle 30 can be better constrained and supported when subjected to external forces, preventing unnecessary movement or displacement of the handle 30 and thus avoiding damage or detachment caused by external forces. Furthermore, the second limiting groove 212 can also improve the tensile strength and torsional resistance of the overall structure, ensuring that the connection between the handle 30 and the housing 20 is less prone to loosening or deformation during prolonged use.

[0056] In one embodiment, reference is made to Figure 10 A frosted structure 60 is provided between the side wall of the locking member 42 near the handle 30 and the side wall of the limiting member 41 near the locking member 42.

[0057] In practical applications, a frosted structure 60 is provided between the side wall of the locking member 42 near the handle 30 and the side wall of the limiting member 41 near the locking member 42. This effectively increases the friction between the locking member 42 and the limiting member 41, preventing the locking member 42 from loosening or shifting due to external forces during use. The frosted structure 60 increases the coefficient of friction of the contact surfaces, thereby enhancing the stability of the connection and reducing structural loosening problems caused by vibration or frequent operation.

[0058] In this embodiment, the frosted structure 60 is fixedly connected to the side wall of the limiting member 41 near the locking member 42. The material of the frosted structure 60 can be glass fiber reinforced plastic, nylon, polycarbonate or rubber.

[0059] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0060] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0061] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0062] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A housing, characterized in that, The application relates to a shell and a handle. The shell is provided with a first limiting groove. The handle is provided with a first perforation. The connecting assembly comprises a limiting piece and a locking piece.

2. The housing of claim 1, wherein The limiting piece is arranged on the side of the handle away from the shell and is arranged in the first perforation and the first limiting groove.

3. The housing of claim 1, wherein, The locking piece is arranged in the limiting piece and the handle and is connected with the shell.

4. The housing of claim 3, wherein, The limiting piece comprises a first abutting part and a limiting part. The first abutting part is arranged on the side of the handle away from the shell.

5. The housing of claim 4, wherein, The limiting part is arranged on one end of the first abutting part and is arranged in the first perforation and the first limiting groove. The locking piece is arranged in the first abutting part and the handle and is connected with the shell.

6. The housing of claim 4, wherein, The locking piece comprises a connecting part and a second abutting part. The second abutting part is arranged on the side of the limiting piece away from the handle and abuts against the limiting piece.

7. The housing of claim 6, wherein, One end of the connecting part is arranged on the second abutting part.

8. The enclosure of claim 1, wherein, The other end of the connecting part is arranged in the first perforation and the handle and is connected with the shell.

9. The housing of claim 8, wherein, The shell is provided with a second perforation.

10. The enclosure of claim 1, wherein, The handle is provided with a third perforation.

11. A battery pack, characterized by The second perforation and the third perforation are opposite to each other. The shell comprises a matching piece. The matching piece is arranged in the second perforation. The matching piece is provided with a locking hole which is communicated with the outside of the shell. The locking piece is arranged in the third perforation and the second perforation and the locking hole. The locking piece is screwed with the matching piece through the locking hole. The locking piece is connected with the shell through the matching piece. The outer wall of the matching piece is provided with an inserting groove. The shell comprises a first base and a fixing part. The first limiting groove and the second perforation are arranged on the first base. The fixing part is connected with the inner wall of the second perforation on one end. The other end of the fixing part is inserted into the inserting groove to limit the movement of the matching piece. The matching piece comprises a second base and a plurality of limiting teeth. The locking hole is arranged on the second base. The limiting teeth are arranged on the outer wall of the second base. The inner wall of the second perforation is provided with a tooth groove. The limiting teeth are inserted into the tooth groove. The limiting teeth comprise a first tooth and a second tooth. The first tooth and the second tooth are arranged on the opposite two ends of the second base. The opposite two side walls of the first tooth and the second tooth and the outer wall of the second base jointly form an inserting groove. Part of the shell is inserted into the inserting groove. The shell comprises a first base and a supporting part which are connected with each other. The first limiting groove is arranged on the first base. The supporting part is arranged on the first base and extends away from the first limiting groove. Part of the handle is opposite to the supporting part. The first base is provided with a second limiting groove on the side facing the handle. Part of the handle is accommodated in the second limiting groove. The side wall of the locking piece close to the handle and the side wall of the limiting piece close to the locking piece are provided with a frosted structure. The application relates to a shell and a handle. A single cell and a housing as claimed in any of claims 1 to 10, the single cell being assembled in the housing.

Images