Detachable junction box of automobile power system

Abstract

The utility model discloses a detachable junction box of an automobile power system, which belongs to the technical field of automobile parts, is used for connecting a wiring harness, and comprises a bracket, a shell is arranged in the bracket, an adjusting cavity is formed in the shell, a screw rod is movably connected in the adjusting cavity, and knobs are arranged at the two ends of the screw rod. A movable rack is in threaded connection with the outer wall of the lead screw, a gear disc is movably connected to the inner wall of the adjusting cavity, a linkage groove is formed in the gear disc in an opening and closing mode, a mounting plate is fixedly connected to the back face of the shell, telescopic grooves are formed in the mounting plate, communicating grooves are formed in the inner walls of the multiple telescopic grooves, and the telescopic grooves communicate with the adjusting cavity through the communicating grooves; a locking plate is arranged in the telescopic groove, the outer wall of the locking plate is fixedly connected with a connecting rod, the connecting rod sequentially penetrates through the communicating groove and the linkage groove, and the other end of the connecting rod is fixedly connected with a check block. The junction box and the support are convenient and rapid to disassemble and assemble, operation is simple, tools are not needed, and later maintenance and replacement are facilitated.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and in particular to a detachable junction box for an automotive powertrain system. Background Technology

[0002] The automotive powertrain junction box is a core component of the vehicle's electrical system. It is responsible for the centralized distribution and management of electrical energy, ensuring the safe and efficient operation of the powertrain and related electronic equipment. In new energy vehicles, it is directly related to high-voltage safety and range performance. Its design must take into account reliability, heat dissipation, and EMC (electromagnetic compatibility) requirements, making it a key node in the vehicle's electrical architecture.

[0003] However, existing detachable junction boxes for automotive power systems have the following drawbacks: for example, junction boxes are generally fixed to vehicle brackets using bolts and nuts, and multiple sets are usually used for fixing. Corresponding tools are required for this, and disassembling multiple sets of bolts and nuts in sequence is time-consuming and cumbersome. Summary of the Invention

[0004] The purpose of this application is to improve the efficiency of junction box disassembly, shorten disassembly time, and facilitate the maintenance and replacement of junction boxes.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: A bracket is included, with an outer shell on the outside of the bracket. An adjustment cavity is formed inside the outer shell. A lead screw is movably connected inside the adjustment cavity. Knobs are provided at both ends of the lead screw. A movable rack is threadedly connected to the outer wall of the lead screw. A gear disk is movably connected to the inner wall of the adjustment cavity. Multiple linkage grooves are formed inside the gear disk. A mounting plate is fixedly connected to the back of the outer shell. Multiple telescopic grooves are formed inside the mounting plate. A connecting groove is formed inside the mounting plate. The inner walls of multiple telescopic grooves are formed with connecting grooves. The telescopic grooves communicate with the adjustment cavity through the connecting grooves. A locking plate is provided inside the telescopic groove. A connecting rod is fixedly connected to the outer wall of the locking plate. The connecting rod passes through the connecting groove and the linkage groove in sequence. A stop block is fixedly connected to the other end of the connecting rod. The stop block is located inside the adjustment cavity.

[0006] As a preferred embodiment, the rear side of the inner wall of the bracket is provided with an inclined surface, and the mating ends of the plurality of locking plates with the inclined surface are all triangular.

[0007] As another preferred embodiment, both outer walls of the housing are provided with knob slots, and the knob is located inside the knob slots.

[0008] Further preferably, a cover plate is installed on the front of the outer shell, and fixing plates are provided on the outer wall of the gear disk and the outer wall of the bracket. There are multiple fixing plates, and adjacent fixing plates are connected by bolts.

[0009] Further preferably, a sealing gasket is provided on the front side of the outer casing, and the sealing gasket is located between the cover plate and the outer casing.

[0010] Further preferably, the front of the outer shell is provided with positioning holes, and there are multiple positioning holes. The outer wall of the cover plate is fixedly connected with positioning posts, and there are multiple positioning posts. The multiple positioning posts are respectively located inside the multiple positioning holes.

[0011] Further preferably, the outer walls on both sides of the outer casing are provided with multiple wire-passing holes, and the upper and lower outer walls of the outer casing are provided with multiple heat dissipation holes.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] (1) When installing the housing, insert the mounting plate at the rear end of the housing into the bracket. At this time, multiple locking plates retract into their corresponding telescopic slots. Then, turn the knob to drive the lead screw to rotate. When the lead screw rotates, the moving rack moves to the left along the bottom of the inner wall of the adjustment cavity. Since the outer wall of the gear plate meshes with the top of the moving rack, the gear plate rotates clockwise. When the gear plate rotates clockwise, the connecting rod located inside the linkage slot moves the locking plate away from the gear plate under the combined action of the connecting slot and the linkage slot until the triangular end of the locking plate is in contact with the inclined surface inside the bracket. Then, turn the knob again to press the multiple locking plates tightly against the inclined surface in the bracket. At the same time, the back of the housing is in close contact with the front of the bracket, thus fixing the entire housing on the bracket. When disassembling the housing, turn the knob in the opposite direction. In the same way, the multiple locking plates can be retracted into their corresponding telescopic slots. The junction box and bracket are easy to assemble and disassemble quickly and easily. The operation is simple and does not require tools. It is convenient for later maintenance and replacement.

[0014] (2) After the outer shell is fixed, when installing the cover plate, make the multiple positioning posts on the outer wall of the cover plate align with the multiple positioning holes opened on the front of the bracket, so that the cover plate is positioned on the outer wall of the bracket. Then, the cover plate can be fixedly connected to the bracket by multiple bolts. At the same time, a sealing gasket is set at the connection to improve the sealing performance inside the outer shell. Attached Figure Description

[0015] Figure 1 This is a first-view overall structural diagram of the detachable junction box of the vehicle's powertrain system.

[0016] Figure 2 This is a second-view overall structural diagram of the detachable junction box of the vehicle's powertrain system;

[0017] Figure 3 This is a schematic diagram of the housing and cover of the detachable junction box for the vehicle's powertrain system.

[0018] Figure 4 This is a schematic diagram of the internal structure of the mounting plate of the detachable junction box for the vehicle's powertrain system.

[0019] Figure 5 This is a schematic diagram of the internal structure of the detachable junction box of the vehicle's powertrain system.

[0020] Figure 6 This is a schematic diagram of the movable rack, gear disk, and locking plate of the detachable junction box of the vehicle's powertrain system.

[0021] Figure 7 This is a schematic diagram of the bracket for the detachable junction box of the vehicle's powertrain system.

[0022] Figure 8 This is a schematic diagram of the positioning pins and positioning holes of the detachable junction box for the vehicle's powertrain system.

[0023] In the diagram: 1. Bracket; 2. Housing; 3. Adjustment chamber; 4. Lead screw; 5. Moving rack; 6. Gear disk; 7. Linkage groove; 8. Mounting plate; 9. Telescopic groove; 10. Connecting groove; 11. Locking plate; 12. Connecting rod; 13. Stop; 14. Inclined surface; 15. Knob groove; 16. Cover plate; 17. Fixing plate; 18. Sealing gasket; 19. Positioning hole; 20. Positioning post; 21. Wire hole; 22. Heat dissipation hole. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0028] like Figure 1-8 The detachable junction box for the automotive powertrain shown includes a bracket 1, an outer casing 2, and an adjustment cavity 3 inside the outer casing 2. A lead screw 4 is movably connected inside the adjustment cavity 3, with knobs at both ends of the lead screw 4. A movable rack 5 is threaded onto the outer wall of the lead screw 4. A gear disk 6 is movably connected to the inner wall of the adjustment cavity 3, and its outer wall meshes with the top of the movable rack 5. Multiple linkage grooves 7 are provided inside the gear disk 6. A mounting plate 8 is fixedly connected to the back of the outer casing 2, and a telescopic groove 9 is provided inside the mounting plate 8. There are multiple telescopic grooves 9, and each telescopic groove 9 has a connecting groove 10 on its inner wall. The telescopic grooves 9 are connected to the adjustment cavity 3 through the connecting grooves 10. A locking plate 11 is installed inside the telescopic groove 9. A connecting rod 12 is fixedly connected to the outer wall of the locking plate 11. The connecting rod 12 passes through the connecting groove 10 and the linkage groove 7 in sequence. A stop block 13 is fixedly connected to the other end of the connecting rod 12. The stop block 13 is located inside the adjustment cavity 3. An inclined surface 14 is provided on the rear side of the inner wall of the bracket 1. The contact ends of the multiple locking plates 11 with the inclined surface 14 are all triangular. Knob grooves 15 are provided on both outer walls of the outer shell 2. The knob is located inside the knob slot 15. When installing the housing 2, the mounting plate 8 at the rear end of the housing 2 is inserted into the bracket 1. At this time, multiple locking plates 11 retract into their corresponding telescopic slots 9. Then, rotating the knob drives the lead screw 4 to rotate. When the lead screw 4 rotates, the moving rack 5 moves to the left along the bottom of the inner wall of the adjusting cavity 3. Since the outer wall of the gear disk 6 meshes with the top of the moving rack 5, the gear disk 6 rotates clockwise. When the gear disk 6 rotates clockwise, the connecting rod 12 located inside the linkage slot 7, under the combined action of the connecting slot 10 and the linkage slot 7, drives the lock. The fixed plate 11 moves away from the gear disk 6 until the triangular end of the locking plate 11 is in contact with the inclined surface 14 inside the bracket 1. Then, the knob is rotated again to press the multiple locking plates 11 tightly against the inclined surface 14 in the bracket 1. At the same time, the back of the outer shell 2 is in close contact with the front of the bracket 1, thereby fixing the entire outer shell 2 to the bracket 1. When removing the outer shell 2, the knob is rotated in the opposite direction. In the same way, the multiple locking plates 11 can be retracted into their corresponding telescopic grooves 9. The outer shell 2 and the bracket 1 are easy to assemble and disassemble, simple to operate, do not require tools, and are convenient for later maintenance and replacement.

[0029] A cover plate 16 is installed on the front of the outer casing 2. Fixing plates 17 are provided on the outer walls of the gear disk 6 and the bracket 1. There are multiple fixing plates 17. Adjacent fixing plates 17 are connected by bolts. A sealing gasket 18 is provided on the front of the outer casing 2. The sealing gasket 18 is located between the cover plate 16 and the outer casing 2. There are multiple positioning holes 19 on the front of the outer casing 2. Positioning posts 20 are fixedly connected to the outer wall of the cover plate 16. There are multiple positioning posts 20, which are located inside the multiple positioning holes 19. After the outer casing 2 is fixed, when the cover plate 16 is installed, the multiple positioning posts 20 on the outer wall of the cover plate 16 are aligned with the multiple positioning holes 19 on the front of the bracket 1, so that the cover plate 16 is positioned on the outer wall of the bracket 1. Then, the cover plate 16 and the bracket 1 can be fixedly connected by multiple bolts. At the same time, a sealing gasket 18 is provided at the connection to improve the sealing of the inner casing 2.

[0030] Both sides of the outer wall of the outer casing 2 are provided with wire holes 21, and there are multiple wire holes 21. The upper and lower outer walls of the outer casing 2 are provided with heat dissipation holes 22, and there are multiple heat dissipation holes 22, so that the air inside the outer casing 2 can convect with the outside air and improve heat dissipation.

[0031] Working principle: When installing the outer casing 2, insert the mounting plate 8 at the rear end of the outer casing 2 into the interior of the bracket 1. At this time, multiple locking plates 11 retract into their corresponding telescopic grooves 9. Then, turn the knob to drive the lead screw 4 to rotate. When the lead screw 4 rotates, the moving rack 5 moves to the left along the bottom of the inner wall of the adjusting cavity 3. Since the outer wall of the gear disk 6 meshes with the top of the moving rack 5, the gear disk 6 rotates clockwise. When the gear disk 6 rotates clockwise, the connecting rod 12 located inside the linkage groove 7, under the combined action of the connecting groove 10 and the linkage groove 7, drives the locking plate 11 to move away from the gear disk 6 until the triangular end of the locking plate 11 is in contact with the inclined surface 14 inside the bracket 1. After closing, rotate the knob again to press the multiple locking plates 11 tightly against the inclined surface 14 in the bracket 1, and at the same time, the back of the outer shell 2 is tightly fitted against the front of the bracket 1, thereby fixing the entire outer shell 2 onto the bracket 1. When removing the outer shell 2, rotate the knob in the opposite direction. In the same way, the multiple locking plates 11 can be retracted into their corresponding telescopic grooves 9. After the outer shell 2 is fixed, when installing the cover plate 16, align the multiple positioning posts 20 on the outer wall of the cover plate 16 with the multiple positioning holes 19 opened on the front of the bracket 1, so that the cover plate 16 is positioned on the outer wall of the bracket 1. Then, the cover plate 16 can be fixedly connected to the bracket 1 by multiple bolts. At the same time, a sealing gasket 18 is set at the connection to improve the sealing of the inner shell 2.

[0032] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A detachable junction box for an automotive powertrain system, comprising a bracket (1), characterized in that: The bracket (1) is provided with an outer shell (2). An adjustment cavity (3) is provided inside the outer shell (2). A lead screw (4) is movably connected inside the adjustment cavity (3). Knobs are provided at both ends of the lead screw (4). A movable rack (5) is threadedly connected to the outer wall of the lead screw (4). A gear disk (6) is movably connected to the inner wall of the adjustment cavity (3). A linkage groove (7) is provided inside the gear disk (6). There are multiple linkage grooves (7). A mounting plate (8) is fixedly connected to the back of the outer shell (2). The mounting plate (8) has an internal opening... The device is provided with a telescopic groove (9), and there are multiple telescopic grooves (9). The inner wall of each telescopic groove (9) is provided with a connecting groove (10). The telescopic groove (9) is connected to the adjustment cavity (3) through the connecting groove (10). A locking plate (11) is provided inside the telescopic groove (9). A connecting rod (12) is fixedly connected to the outer wall of the locking plate (11). The connecting rod (12) passes through the connecting groove (10) and the linkage groove (7) in sequence. A stop block (13) is fixedly connected to the other end of the connecting rod (12). The stop block (13) is located inside the adjustment cavity (3).

2. The detachable junction box for automotive powertrain as described in claim 1, characterized in that: The inner wall of the bracket (1) is provided with a slope (14), and the mating ends of the multiple locking plates (11) and the slope (14) are all triangular.

3. The detachable junction box for automotive powertrain as described in claim 1, characterized in that: Both sides of the outer wall of the outer casing (2) are provided with knob grooves (15), and the knob is located inside the knob grooves (15).

4. The detachable junction box for automotive powertrain as described in claim 1, characterized in that: The front of the outer shell (2) is fitted with a cover plate (16), and the outer wall of the gear disk (6) and the outer wall of the bracket (1) are both provided with fixing plates (17). There are multiple fixing plates (17), and two adjacent fixing plates (17) are connected by bolts.

5. The detachable junction box for automotive powertrain as described in claim 1, characterized in that: A sealing gasket (18) is provided on the front of the outer shell (2), and the sealing gasket (18) is located between the cover plate (16) and the outer shell (2).

6. The detachable junction box for automotive powertrain as described in claim 4, characterized in that: The outer shell (2) has a positioning hole (19) on its front side, and there are multiple positioning holes (19). The outer wall of the cover plate (16) is fixedly connected with a positioning post (20), and there are multiple positioning posts (20). The multiple positioning posts (20) are located inside the multiple positioning holes (19).

7. The detachable junction box for automotive powertrain as described in claim 1, characterized in that: The outer walls of the outer shell (2) are provided with wire holes (21) on both sides, and there are multiple wire holes (21). The outer walls of the outer shell (2) are provided with heat dissipation holes (22), and there are multiple heat dissipation holes (22).

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