Battery pack packaging shell internal wire arrangement structure

Abstract

The utility model discloses a battery pack encapsulation shell inside wire arrangement structure, including the wire fixing assembly of lower shell inner wall and the wire locking assembly of upper shell inner wall same side, install battery pack between both, and the wire fixing assembly has fixed block, and its inside positioning slot supplies the exclusive placement of wire harness, prevents cross winding, fixed axle installs apron, and the locking hole of baffle after cover is closed and is locked with the locking block of fixed block, realizes automatic locking, and wire harness is stably positioned and prevents insulation layer breakage, the wire locking assembly contains the telescopic box body of upper shell outer wall, and its telescopic hole and the through slot of upper shell mounting groove are installed wire locking plate, and the limiting plate of wire locking plate is in telescopic box body, and there is compression spring between mounting groove, the wire locking block below wire locking plate locks wire locking area and matches positioning slot, and compression spring elasticity can be adaptive wire harness diameter, avoids tight pressure injury or too loose failure, and wire locking block ensures locking and pre -fixed position correspondence, prevents wire harness deviation when shell cover.

Description

Technical Field

[0001] This utility model specifically relates to a wiring structure inside a battery pack packaging shell. Background Technology

[0002] As a core energy module in electric vehicles, energy storage systems, and mobile devices, battery packs typically consist of multiple cells connected in series or parallel, encapsulated in a metal or plastic casing to form a complete power supply unit. With the development of power battery technology towards modularization and higher energy density, the internal structure of battery casings is becoming increasingly compact, while the number and types of high-voltage and low-voltage cables are constantly increasing. The rationality of the cable management structure directly affects the safety, reliability, and assembly efficiency of the battery pack.

[0003] Existing cable management structures often employ integrated designs or multiple clips for fixing. Disassembling and assembling the cable harness requires disassembling the entire assembly, making cable management time-consuming and labor-intensive during battery maintenance. Furthermore, when high-voltage and low-voltage cables are mixed together, the lack of an effective isolation structure can easily lead to electromagnetic interference due to insufficient spacing. In addition, loosely fixed cable harnesses are prone to displacement and wear under vibration, resulting in insulation damage and short circuits. At the same time, messy cable harnesses can block heat dissipation copper plates and fins, hindering the dissipation of heat from the inside of the casing. High-temperature environments also accelerate the aging of the insulation layer, shortening the lifespan of the cable harness.

[0004] Therefore, it is necessary to invent a wiring structure inside the battery pack packaging housing to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model To address the technical problems existing in the background art, this utility model proposes an internal wiring structure for battery pack packaging housing.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a wiring structure inside a battery pack housing, comprising multiple wire fixing components disposed on the inner wall of a lower housing, and a wire locking component disposed on the inner wall of an upper housing on the same side as the wire fixing components, wherein a battery pack is installed between the lower housing and the upper housing; The multiple wire fixing components include a fixing block, a positioning groove is provided in the fixing block, a fixing shaft is provided on one side of the top of the positioning groove, a cover plate is installed on the fixing shaft, the cover plate covers the top of the positioning groove, a baffle extends downward from one end of the cover plate, a locking hole is provided on the baffle plate, and a locking block is provided on one side of the fixing block to match the locking hole; The wire-locking assembly includes a telescopic box fixed to the outer wall of the upper housing. One end of the telescopic box has a telescopic hole, and the outer wall of the upper housing has a mounting groove for mounting the telescopic box. The bottom of the mounting groove has a through groove that matches the telescopic hole. A wire-locking plate is installed in both the telescopic hole and the through groove. A limiting plate extends from the outer wall of the wire-locking plate. The limiting plate is placed inside the telescopic box, and multiple compression springs are provided between the end of the limiting plate and the bottom of the mounting groove. A wire-locking block is provided below the end of the wire-locking plate, and the wire-locking area of ​​the wire-locking block matches the positioning groove.

[0007] Preferably, the other end of the locking plate is placed outside the telescopic box, and a push plate is provided at the end. The push plate pushes the locking plate to move inside the telescopic box and drives the locking block to move inside the upper housing, thereby locking the wire harness positioned in the positioning groove onto the inner sidewalls of the upper housing and the lower housing.

[0008] Preferably, the push plate has multiple arc-shaped grooves on its upper and lower sides, and the front of the push plate has multiple anti-slip textures.

[0009] Preferably, the fixing block has a groove for mounting the locking block on one side, a locking spring is provided between the bottom of the locking block and the bottom of the groove, the top of the locking block is set as an inclined surface, and the end of the locking block and the groove opening are provided with matching limiting structures.

[0010] Preferably, the end of the cover plate is provided with a rotating bushing that matches the fixed shaft.

[0011] Preferably, a rotating rod is provided on one side of the lower housing, and a bushing matching the rotating rod is provided on one side of the upper housing.

[0012] Preferably, both the lower housing and the upper housing are provided with an interface at one end, and the connection position between the two is provided with multiple matching mounting ears.

[0013] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are: 1. The positioning groove of this utility model provides a dedicated space for the wire harness, avoiding the cross-entanglement of multiple wire harnesses; after the cover plate is rotated and closed by the fixed shaft, the locking hole of the baffle plate engages with the locking block of the fixed block to realize the automatic locking of the cover plate, which not only ensures that the wire harness is stably restricted in the positioning groove, but also avoids rigid compression that could cause damage to the wire harness insulation layer. 2. The compression spring of this utility model can adapt to changes in the diameter of the wire harness, avoiding damage from excessive tightness or failure from excessive looseness; the locking area of ​​the locking block is precisely matched with the positioning groove, ensuring that the locking position corresponds completely with the pre-fixed position, preventing the wire harness from shifting during the closing of the housing. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the opening structure of the upper and lower shells of this utility model; Figure 3 This is a schematic diagram of the disassembled upper shell structure of this utility model; Figure 4 This is a schematic diagram of the overall structure of the lower shell of this utility model; Figure 5 This is a schematic diagram of the wire fixing assembly structure of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Lower housing; 11. Rotating rod; 2. Wire fixing assembly; 21. Fixing block; 211. Groove; 22. Positioning groove; 23. Fixing shaft; 24. Cover plate; 241. Rotating bushing; 25. Baffle; 251. Locking hole; 26. Locking block; 27. Locking spring; 3. Upper housing; 31. Mounting groove; 32. Through groove; 33. Bushing; 4. Wire locking assembly; 41. Telescopic box; 411. Telescopic hole; 42. Wire locking plate; 43. Limiting plate; 44. Compression spring; 45. Wire locking block; 46. Push plate; 461. Arc groove; 462. Anti-slip texture; 5. Interface; 6. Mounting ear. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] This utility model provides, for example Figure 1-5 The battery pack packaging housing internal wiring structure shown includes multiple wire fixing components 2 disposed on the inner wall of the lower housing 1, and a wire locking component 4 disposed on the inner wall of the upper housing 3 on the same side as the wire fixing components 2. A battery pack is installed between the lower housing 1 and the upper housing 3. Specifically, the multiple wire fixing components 2 include a fixing block 21, a positioning groove 22 is provided in the fixing block 21, a fixing shaft 23 is provided on one side of the top of the positioning groove 22, a cover plate 24 is installed on the fixing shaft 23, the cover plate 24 covers the top of the positioning groove 22, a baffle 25 extends downward from one end of the cover plate 24, a locking hole 251 is provided on the baffle 25, and a locking block 26 is provided on one side of the fixing block 21 to match the locking hole 251; Specifically, the wire locking assembly 4 includes a telescopic box 41 fixed to the outer wall of the upper housing 3. One end of the telescopic box 41 has a telescopic hole 411. The outer wall of the upper housing 3 has a mounting groove 31 for mounting the telescopic box 41. The bottom of the mounting groove 31 has a through groove 32 that matches the telescopic hole 411. A wire locking plate 42 is installed in both the telescopic hole 411 and the through groove 32. A limiting plate 43 extends from the outer wall of the wire locking plate 42. The limiting plate 43 is placed inside the telescopic box 41. Multiple compression springs 44 are provided between the end of the limiting plate 43 and the bottom of the mounting groove 31. A wire locking block 45 is provided below the end of the wire locking plate 42. The wire locking area positioning groove 22 of the wire locking block 45 matches.

[0019] Specifically, the other end of the locking plate 42 is placed outside the telescopic box 41, and the end is provided with a push plate 46. The push plate 46 pushes the locking plate 42 to move inside the telescopic box 41, and drives the locking block 45 to move inside the upper housing 3, locking the wire harness positioned in the positioning groove 22 to the inner side wall of the upper housing 3 and the lower housing 1.

[0020] Specifically, the push plate 46 has multiple arc-shaped grooves 461 on its upper and lower sides, and multiple anti-slip textures 462 on its front side.

[0021] Specifically, the fixed block 21 has a groove 211 for installing the locking block 26 on one side, a locking spring 27 is provided between the bottom of the locking block 26 and the bottom of the groove 211, the top of the locking block 26 is set as an inclined surface, and the end of the locking block 26 and the groove opening of the groove 211 are provided with matching limiting structures.

[0022] Specifically, the end of the cover plate 24 is provided with a rotating bushing 241 that matches the fixed shaft 23.

[0023] Specifically, a rotating rod 11 is provided on one side of the lower housing 1, and a bushing 33 matching the rotating rod 11 is provided on one side of the upper housing 3.

[0024] Specifically, both the lower housing 1 and the upper housing 3 are provided with an interface 5 at one end, and multiple matching mounting ears 6 are provided at the connection position between the two.

[0025] In this embodiment, the fixing block 21 of the wire fixing assembly 2 is fixed to a preset position on the inner wall of the lower housing 1 by injection molding or bolting, ensuring that the opening of the positioning groove 22 faces upward; the locking block 26 and the locking spring 27 are assembled into the groove 211 of the fixing block 21, and the limiting structure is used to prevent the locking block 26 from falling out of the groove; the cover plate 24 is put on the fixing shaft 23 by rotating the bushing 241, thus completing the pre-assembly of the side wire arrangement structure of the lower housing 1. Meanwhile, a telescopic box 41 is fixed in the mounting groove 31 on the outer wall of the upper housing 3, so that the telescopic hole 411 of the telescopic box 41 is aligned with the through groove 32 at the bottom of the mounting groove 31. The locking plate 42 is passed through the telescopic hole 411 and the through groove 32 in sequence. The limiting plate 43 is placed in the telescopic box 41. A compression spring 44 is installed between the end of the limiting plate 43 and the bottom of the mounting groove 31. The push plate 46 is fixed at the end of the locking plate 42 that extends out of the telescopic box 41, ensuring that the arc groove 461 and the anti-slip texture 462 of the push plate 46 face the operating side, thus completing the pre-installation of the locking assembly 4 on the side of the upper housing 3.

[0026] Specifically, pushing the push plate 46 causes the locking plate 42 to compress the compression spring 44, moving the locking block 45 upward to a position that does not affect the placement of the wire harness. The wire harnesses of the battery pack are then placed one by one into the positioning groove 22 of the fixing block 21 inside the lower housing 1 to prevent the wire harnesses from crossing and tangling. Then, the cover plate 24 is flipped over so that it rotates around the fixing axis 23 and covers the top of the positioning groove 22. The baffle 25 of the cover plate 24 presses against the inclined surface of the locking block 26, forcing the locking block 26 to compress the locking spring 27 and retract into the groove 211. When the locking hole 251 on the baffle 25 is aligned with the locking block 26, the locking block 26 pops out under the elastic force of the locking spring 27 and locks into the locking hole 251, thereby locking the cover plate 24 and completing the pre-fixing of the wire harness.

[0027] Specifically, align the rotating rod 11 of the lower housing 1 with the bushing 33 of the upper housing 3, and rotate the upper housing 3 around the rotating rod 11 to the closed position, ensuring that the interface 5 of the lower housing 1 and the upper housing 3 are aligned and the mounting ears 6 are matched. At this time, release the push plate 46, and the compression spring 44 returns to its original position, pushing the limit plate 43 and causing the locking plate 42 to move down, so that the locking area of ​​the locking block 45 is precisely fitted with the positioning groove 22 of the lower housing 1, locking the wire harness between the inner wall of the upper housing 3 and the lower housing 1. Finally, use bolts to fix the upper housing 3 and the lower housing 1 using the mounting ears 6 to complete the overall assembly.

[0028] In this embodiment, the positioning groove 22 provides dedicated space for the wire harness to avoid cross-entanglement, and the cover plate 24 prevents the wire harness from coming out after locking; the wire locking block 45 matches the positioning groove 22, and the elastic force of the compression spring 44 adapts to the diameter of the wire harness to ensure that the wire harness does not shift inside the housing, effectively avoiding wire harness wear or poor contact caused by vibration.

[0029] In this embodiment, the cover plate 24 can be opened and closed quickly by rotating the bushing 241, and the inclined design of the locking block 26 enables automatic locking by pressing without tools; the arc groove 461 of the push plate 46 is easy to hold, and the anti-slip texture 462 increases the friction, making the pushing operation easy. When the shell is closed, the push plate can be released to complete the locking, which greatly reduces the time and cost of assembly and maintenance.

[0030] In this embodiment, the lower housing 1 and the upper housing 3 are rotated and closed by a rotating rod 11 and a bushing 33, which facilitates alignment and assembly; the interface 5 ensures smooth connection between the battery pack and external equipment, and the mounting ear 6 ensures a stable connection between the housings; the modular design of the wire fixing assembly and the wire locking assembly can adapt to the wiring harness layout of different battery pack specifications, and has strong versatility.

[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A battery pack package case inner wire arrangement structure, characterized by: It includes multiple wire fixing assemblies (2) disposed on the inner wall of the lower housing (1) and a wire locking assembly (4) disposed on the inner wall of the upper housing (3) on the same side as the wire fixing assemblies (2), and a battery pack is installed between the lower housing (1) and the upper housing (3); The multiple wire fixing components (2) include a fixing block (21), a positioning groove (22) is provided in the fixing block (21), a fixing shaft (23) is provided on one side of the top of the positioning groove (22), a cover plate (24) is installed on the fixing shaft (23), the cover plate (24) covers the top of the positioning groove (22), a baffle (25) extends downward from one end of the cover plate (24), a locking hole (251) is provided on the baffle (25), and a locking block (26) is provided on one side of the fixing block (21) to match the locking hole (251); The locking assembly (4) includes a telescopic box (41) fixed on the outer wall of the upper housing (3). One end of the telescopic box (41) is provided with a telescopic hole (411). The outer wall of the upper housing (3) is provided with a mounting groove (31) for installing the telescopic box (41). The bottom of the mounting groove (31) is provided with a through groove (32) that matches the telescopic hole (411). The telescopic hole (411) and the through groove (32) are both equipped with a locking plate (42). The outer wall of the locking plate (42) extends with a limiting plate (43). The limiting plate (43) is placed inside the telescopic box (41). Multiple compression springs (44) are provided between the end of the limiting plate (43) and the bottom of the mounting groove (31). A locking block (45) is provided below the end of the locking plate (42). The locking area of ​​the locking block (45) matches the positioning groove (22).

2. The battery pack package case internal wire arrangement structure according to claim 1, characterized by: The other end of the locking plate (42) is placed outside the telescopic box (41), and the end is provided with a push plate (46). The push plate (46) pushes the locking plate (42) to move inside the telescopic box (41), and drives the locking block (45) to move inside the upper shell (3), locking the wire harness positioned in the positioning groove (22) on the inner side wall of the upper shell (3) and the lower shell (1).

3. The battery pack package case internal wire arrangement structure according to claim 2, characterized by: The push plate (46) has multiple arc-shaped grooves (461) on its upper and lower sides, and multiple anti-slip textures (462) on its front side.

4. The battery pack package case internal wire arrangement structure according to claim 1, characterized by: The fixing block (21) has a groove (211) for installing the locking block (26) on one side. A locking spring (27) is provided between the bottom of the locking block (26) and the bottom of the groove (211). The top of the locking block (26) is set as an inclined surface. The end of the locking block (26) and the groove opening of the groove (211) are provided with matching limiting structures.

5. The battery pack package housing internal wire arrangement structure according to claim 1, characterized by: The end of the cover plate (24) is provided with a rotating bushing (241) that matches the fixed shaft (23).

6. The battery pack package housing internal wire arrangement structure according to claim 1, characterized by: The lower housing (1) is provided with a rotating rod (11) on one side, and the upper housing (3) is provided with a bushing (33) matching the rotating rod (11) on one side.

7. The battery pack package housing internal wire arrangement structure according to claim 1, characterized by: The lower shell (1) and the upper shell (3) are provided with interfaces (5) at one end, and a plurality of matching mounting ears (6) are arranged at the connecting position.

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