A distribution box with built-in bus duct

Abstract

The application discloses a distribution box with built-in bus duct, and relates to the technical field of distribution boxes. The distribution box comprises a distribution box body, a fixed side plate is fixedly installed on the inner wall of the distribution box body, an installation plate is arranged on the fixed side plate, an installation hole is arranged on the installation plate, a bus duct body is installed in the installation hole of the installation plate, and a plurality of copper bars for transmitting different electric energy loads are arranged in the bus duct body. A distribution module is inserted into the bus duct body of the installation plate, and a quick plug-in assembly for quickly assembling and disassembling the bus duct body and the distribution module is arranged between the bus duct body and the distribution module. The application has the effect of significantly simplifying the installation and disassembly process while ensuring reliable electrical connection.

Description

Technical Field

[0001] This invention relates to the technical field of distribution boxes, and in particular to a distribution box with a built-in busbar trunking. Background Technology

[0002] Distribution boxes are an important component of power systems. They are enclosed metal cabinets or enclosures used to receive and distribute electrical energy. They contain various electrical components, such as circuit breakers, fuses, switches, and measuring instruments, which are used to control, protect, and distribute power to different circuit branches.

[0003] In standard distribution boxes, modules such as miniature circuit breakers (MCBs) and residual current operated circuit breakers (RCCBs) are typically mounted on DIN rails. However, this mounting method is complex to operate within the confined space of the distribution box, limiting the operator's range of motion and making it difficult to significantly simplify the installation and disassembly process while ensuring reliable electrical connections. Summary of the Invention

[0004] This application provides a distribution box with built-in busbar trunking, which significantly simplifies the installation and disassembly process while ensuring reliable electrical connections.

[0005] This application provides a distribution box with a built-in busbar trunking, which adopts the following technical solution:

[0006] A distribution box with a built-in busbar trunking includes a distribution box body, a fixed side plate fixedly installed on the inner wall of the distribution box body, a mounting plate provided on the fixed side plate, a mounting hole provided on the mounting plate, a busbar trunking body installed inside the mounting hole of the mounting plate, and multiple copper busbars for transmitting different electrical loads provided inside the busbar trunking body.

[0007] A power distribution module is inserted into the busbar trunking of the mounting plate, and a quick-connect assembly for quick assembly and disassembly between the power distribution module and the busbar trunking is provided.

[0008] By adopting the above technical solution, the busbar trunking is installed on a mounting plate, which is then fixed to a fixed side plate, which is finally installed on the inner wall of the distribution box. This layered nesting method ensures the stability and safety of the busbar trunking within the distribution box. Multiple copper busbars are placed inside the busbar trunking, each responsible for transmitting different electrical loads, thereby achieving independent control and protection for different circuits. Specifically, based on quick-connect components, the busbar trunking and the distribution module can be quickly connected and disconnected. This design utilizes a precise mechanical locking structure, which significantly simplifies the installation and disassembly process while ensuring reliable electrical connections.

[0009] Preferably, the top of the distribution box is provided with a cover plate, and one end of the cover plate is rotatably connected to the distribution box via a hinge.

[0010] By adopting the above technical solution and using a simple hinge mechanism, the cover can be opened easily, thereby facilitating the inspection, replacement and maintenance of internal components and eliminating cumbersome disassembly steps.

[0011] Preferably, the quick-connect assembly includes a locking block fixed inside the busbar trunking and a plug-in rod disposed on the power distribution module, wherein the locking block has a slot inside that matches the plug-in rod.

[0012] By adopting the above technical solution, a locking block is provided in the busbar trunking, which has a built-in slot that matches the geometry of the plug-in rod; this plug-in structure ensures convenient connection and disconnection operations, which can be completed with just a simple plugging and unplugging action.

[0013] Preferably, the locking block has a branch groove inside, the branch groove is an arc-shaped structure, and the branch groove is tangential to the long side of the slot. A plug-in claw block is slidably provided inside the branch groove of the locking block. The plug-in claw block has a first engagement groove, and the plug-in rod has a second engagement groove that matches the first engagement groove. When the plug-in rod is inserted into the slot of the locking block and connected to the plug-in claw block, the first engagement groove on the plug-in claw block and the second engagement groove on the plug-in rod are engaged and connected by sliding the plug-in claw block.

[0014] By adopting the above technical solution, after the connector rod is inserted to a set depth, it contacts the connector claw block. Subsequently, through the sliding of the connector claw block, the second engagement groove of the connector rod and the first engagement groove of the connector claw block are mechanically engaged, forming a secondary locking mechanism, which enhances the reliability against vibration and external impact; the design of the arc-shaped branch groove optimizes the sliding path of the connector claw block, ensuring a smooth and reliable engagement process.

[0015] Preferably, a first spring is provided in the branch groove of the locking block.

[0016] By adopting the above technical solution, the preload spring continuously acts on the insertion claw block, providing preload force for the biting mechanism; this preload force ensures that the insertion rod and the insertion claw block remain stable in the biting state, effectively resisting loosening caused by external factors such as vibration and impact.

[0017] Preferably, a second spring is provided in the slot of the locking block, one end of the second spring is fixedly connected to the locking block, and the other end of the second spring is connected to a stop block; the upper surface of the stop block is provided with a plane, and when the plug rod is disengaged from the slot, the second spring will push the stop block, so that the plane on the stop block is tangent to the branch groove and the slot, so that the plug claw block is sealed inside the branch groove.

[0018] By adopting the above technical solution, after the plug rod is disengaged from the slot, the preload of the pre-compressed second spring is insufficient to overcome the return force of the plug claw block; at this time, the released elastic potential energy of the second spring pushes the stop block, so that its plane abuts against the plug claw block, ensuring that the plug claw block is reliably kept in the branch slot.

[0019] Preferably, the upper surface of the abutment block is provided with a first inclined surface, which is located on one side of the plane.

[0020] By adopting the above technical solution, when the plug rod is inserted, the stop block is pushed away; when the plug rod is pulled out, the second spring drives the stop block, and its flat surface first contacts the plug claw block, providing initial resistance; then, the first inclined surface guides the stop block to apply an inclined force to the plug claw block, and smoothly pushes the plug claw block into the branch slot.

[0021] Preferably, the busbar groove of the mounting plate is provided with a guide block, the top of the guide block is provided with an indicator light, the bottom of the indicator light is provided with a push-button switch, the guide block has an arc-shaped structure, and the inside of the guide block has an arc-shaped hole, the push-button switch is located inside the arc-shaped hole, the top of the plug claw block is provided with a touch rod, the touch rod has an arc-shaped structure, and the touch rod slides inside the arc-shaped hole and contacts the push-button switch.

[0022] By adopting the above technical solution, after the plug-in claw block is connected to the busbar, the contact rod moves down, disconnects the switch, and the indicator light goes out; conversely, when the plug-in claw block is pulled out, the contact rod slides along the arc-shaped hole inside the guide block, pushes the switch to close, and the indicator light illuminates, intuitively indicating the connection status.

[0023] Preferably, the bottom of the power distribution module is provided with conductive wires, and the mounting plate is provided with a wire harness assembly for fixing the conductive wires.

[0024] By adopting the above technical solution, a wire harness assembly is used to fix the conductive wires.

[0025] Preferably, the wire harness assembly includes a crossbar fixed to the mounting plate and a drive motor. The output end of the drive motor is connected to a first gear, and a second gear is meshed with one side of the first gear. A cylindrical block is provided at the bottom center of the second gear. The cylindrical block has an elliptical cross-section. A first clamping rod and a second clamping rod are rotatably connected to both ends of the crossbar, respectively. The middle parts of the first clamping rod and the middle parts of the second clamping rod are hinged to the crossbar. One end of the first clamping rod and the second clamping rod are located on both sides of the cylindrical block, respectively. A first clamping block and a second clamping block are provided at the other end of the first clamping rod and the other end of the second clamping rod, respectively.

[0026] By adopting the above technical solution, the motor drives the gear transmission mechanism, in which the eccentrically rotating elliptical cylindrical block drives the hinged clamping rod system; the elliptical motion trajectory generated by the eccentric rotation is converted into the relative motion of the first clamping block and the second clamping block, thereby realizing the precise clamping and releasing of the conductive wire; the design of the elliptical cylindrical block ensures the smooth change of clamping force and the stability of clamping action.

[0027] In summary, this application has the following beneficial effects:

[0028] 1. The busbar trunking is mounted on a mounting plate, which is then fixed to a fixed side plate, which is ultimately mounted on the inner wall of the distribution box. This nested arrangement ensures the stability and safety of the busbar trunking within the distribution box. Multiple copper busbars are placed inside the busbar trunking, each responsible for transmitting different electrical loads, thus enabling independent control and protection of different circuits. Specifically, based on quick-connect components, the busbar trunking and the distribution module can be quickly connected and disconnected. This design utilizes a precise mechanical locking structure, ensuring reliable electrical connections while significantly simplifying the installation and disassembly process.

[0029] 2. The drive motor drives the first gear to rotate, which in turn drives the second gear to rotate. Since the cylindrical block on the second gear is elliptical, when the cylindrical block rotates, its center point moves along an elliptical trajectory. This elliptical motion is transmitted through the hinge structure of the first and second clamping rods, ultimately causing the first and second clamping blocks to move relative to each other, thereby clamping or releasing the conductive wire. The elliptical cylindrical block ensures the smoothness of the clamping force and the clamping action. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the distribution box in this embodiment;

[0031] Figure 2 This is a schematic diagram of the overall structure of the distribution box and the cover plate in the flipped-over state in this embodiment;

[0032] Figure 3 This is an exploded view of the fixed side plate and the mounting plate in this embodiment;

[0033] Figure 4 This is a schematic diagram of the internal structure of the quick-connect component in this embodiment;

[0034] Figure 5 This is an exploded view of the structure between the power distribution module and the locking block in this embodiment;

[0035] Figure 6 This is a schematic diagram of the connection structure between the conductive wire and the wire bundle assembly in this embodiment;

[0036] Figure 7 This is a schematic diagram of the internal structure of the wire harness assembly in this embodiment;

[0037] Explanation of reference numerals in the attached drawings: 1. Distribution box body; 2. Cover plate; 3. Hinge; 4. Door panel; 5. Fixed side panel; 6. Mounting plate; 7. Mounting hole; 8. Distribution module; 9. Quick-connect assembly; 901. Locking block; 902. Plug-in rod; 903. Slot; 904. Branch slot; 905. Plug-in claw block; 906. First engagement slot; 907. Second engagement slot; 908. First spring; 909. Second spring; 9010. Stop block; 9011. 9012. Plane; 9013. First inclined plane; 9014. Guide block; 9015. Indicator light; 9016. Touch rod; 10. Conductive wire; 11. Wire harness assembly; 1101. Crossbar; 1102. Drive motor; 1103. First gear; 1104. Second gear; 1105. Cylindrical block; 1106. First clamping rod; 1107. Second clamping rod; 1108. First clamping block; 1109. Second clamping block; 11010. Fitting surface. Detailed Implementation

[0038] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content. Example

[0039] This invention discloses a distribution box with built-in busbar trunking, such as... Figure 1 and Figure 2 As shown, the distribution box includes a distribution box 1, with a cover 2 on the top of the distribution box 1. One end of the cover 2 is rotatably connected to the distribution box 1 via a hinge 3. The distribution box 1 is a closed metal or plastic shell used to protect the internal electrical components. The cover 2 is connected to the distribution box 1 via the hinge 3, which can be easily opened and closed to facilitate access to internal electrical components such as circuit breakers, switches, and sockets. This design avoids the need to disassemble the entire distribution box for inspection or maintenance, greatly improving operational efficiency and convenience.

[0040] like Figure 1 and Figure 2 As shown, the cover plate 2 can be easily opened with the simple hinge 3 design to check the condition of the internal components, and to replace or repair them without a complicated disassembly process.

[0041] like Figure 1 and Figure 2As shown, a door panel 4 is provided on the front side of the distribution box 1. The door panel 4 is rotatably connected to the distribution box 1. By flipping the door panel 4, the front opening of the distribution box can be opened or closed. Opening the door panel 4 allows easy access to the electrical components inside the distribution box, while closing the door panel 4 protects the internal components and prevents accidental contact.

[0042] like Figure 2 and Figure 3 As shown, a fixed side plate 5 is fixedly installed on the inner wall of the distribution box 1. A mounting plate 6 is provided on the fixed side plate 5. A mounting hole 7 is provided on the mounting plate 6. A busbar trunking is installed inside the mounting hole 7 of the mounting plate 6. Multiple copper busbars are provided inside the busbar trunking. The copper busbars are used to transmit different electrical loads.

[0043] like Figure 2 and Figure 3 As shown, the busbar trunking is installed on the mounting plate 6, which is fixed to the fixed side plate 5. Finally, the fixed side plate 5 is installed on the inner wall of the distribution box. This nested arrangement ensures the stability and safety of the busbar trunking within the distribution box. Multiple copper busbars are placed inside the busbar trunking, each responsible for transmitting different electrical loads, thereby enabling independent control and protection of different circuits.

[0044] like Figure 2 and Figure 3 As shown, the busbar trunking concentrates a large number of wires in one structure, avoiding the wires being distributed haphazardly in the distribution box, improving the cleanliness and aesthetics of the distribution box, and also facilitating future maintenance and repair.

[0045] like Figure 2 and Figure 3 As shown, the fixed side plate 5 and the mounting plate 6 are fixedly connected by bolts, which are used to firmly fix the fixed side plate 5 and the mounting plate 6 to the inner wall of the distribution box 1.

[0046] like Figure 2 and Figure 3 As shown, a power distribution module 8 is inserted into the busbar trunking of the mounting plate 6. A quick-connect assembly 9 is provided between the power distribution module 8 and the busbar trunking. The quick-connect assembly 9 is used to establish quick assembly and disassembly between the busbar trunking and the power distribution module 8. Its core is to use the mechanical principle of the mechanical structure and a certain locking method to simplify the installation and disassembly process while ensuring the reliability of the electrical connection.

[0047] like Figure 4 and Figure 5As shown, specifically, the quick-connect assembly 9 includes a locking block 901 fixed inside the busbar trunking and a plug-in rod 902 disposed on the power distribution module 8. The locking block 901 has a slot 903 inside that matches the plug-in rod 902. The locking block 901 is fixed inside the busbar trunking and has a slot 903 inside that matches the shape of the plug-in rod 902. The matching design of the plug-in rod 902 and the slot 903 makes connection and disconnection very simple, which can be completed with just a simple insertion and removal action.

[0048] like Figure 4 and Figure 5 As shown, the locking block 901 has a branch groove 904 inside. The branch groove 904 has an arc-shaped structure and is tangential to the long side of the slot 903. The branch groove 904 of the locking block 901 has a sliding insertion claw block 905 inside. The insertion claw block 905 has a first engagement groove 906. The insertion rod 902 has a second engagement groove 907 that matches the first engagement groove 906. When the insertion rod 902 is inserted into the slot 903 of the locking block 901, it connects with the insertion claw block 905. By sliding the insertion claw block 905, the first engagement groove 906 on the insertion claw block 905 engages with the second engagement groove 907 on the insertion rod 902.

[0049] like Figure 4 and Figure 5 As shown, the plug rod 902 is first inserted into the slot 903 of the locking block 901. The arc-shaped branch groove 904 guides the plug rod 902 into the correct direction and position. The design that the branch groove 904 is tangent to the long side of the slot 903 can ensure that the plug rod 902 enters the slot 903 smoothly and prevents misalignment.

[0050] like Figure 4 and Figure 5 As shown, when the connector 902 is inserted to a certain depth, it will contact the connector claw block 905. By sliding the connector claw block 905, the second engagement groove 907 on the connector 902 engages with the first engagement groove 906 on the connector claw block 905, forming an additional mechanical locking mechanism. This engagement provides additional fixing force to prevent the connector 902 from loosening or falling off under vibration or other external forces. The design of the arc-shaped branch groove 904 helps guide the sliding of the connector claw block 905 and ensures the smooth progress of the engagement process.

[0051] like Figure 4 and Figure 5 As shown, compared to locking solely by the shape of the slot 903, the addition of the interlocking structure significantly improves the locking force of the connection, enabling it to withstand greater vibration and impact; the dual locking mechanism of the slot 903 and the interlocking significantly improves the reliability of the connection and reduces the risk of accidental dislodgement.

[0052] like Figure 4 and Figure 5 As shown, a first spring 908 is provided in the branch groove 904 of the locking block 901. The first spring 908 continuously applies a preload to the plug-in claw block 905. When the plug-in rod 902 is inserted and engages with the plug-in claw block 905, the preload of the first spring 908 helps to maintain the engagement state and prevents the engagement mechanism from loosening due to vibration, impact or other external forces. Even if subjected to external forces, the elastic force of the first spring 908 will attempt to keep the plug-in claw block 905 engaged with the plug-in rod 902.

[0053] like Figure 4 and Figure 5 As shown, a second spring 909 is provided in the slot 903 of the locking block 901. One end of the second spring 909 is fixedly connected to the locking block 901, and the other end of the second spring 909 is connected to a stop block 9010. A plane 9011 is provided on the upper surface of the stop block 9010. When the plug rod 902 is disengaged from the slot 903, the second spring 909 will push the stop block 9010, so that the plane 9011 on the stop block 9010 is tangent between the branch groove 904 and the slot 903, so that the plug claw block 905 is sealed inside the branch groove 904.

[0054] like Figure 4 and Figure 5 As shown, when the connector 902 disengages from the slot 903, the preload provided by the first spring 908 still exists, but it is insufficient to completely overcome the disengagement tendency of the connector claw block 905. At this time, the second spring 909 comes into play. Due to the disengagement of the connector 902, the second spring 909 is no longer constrained by the connector 902, and its elastic potential energy is released. The second spring 909 pushes the abutment block 9010, causing the plane 9011 of the abutment block 9010 to abut against the connector claw block 905, firmly securing the connector claw block 905. The ground is positioned within the branch slot 904; the contact between the flat surface 9011 of the abutment block 9010 and the branch slot 904 and the slot 903 forms an effective mechanical barrier, preventing the insertion claw block 905 from being accidentally ejected; this design is "active," rather than simply relying on the passive holding of the first spring 908; the first spring 908 ensures stability during insertion, while the second spring 909 ensures safety after disengagement, preventing the insertion claw block 905 from accidentally popping out; this is crucial for applications with high safety requirements.

[0055] like Figure 4 and Figure 5 As shown, the upper surface of the abutment block 9010 is provided with a first inclined surface 9012. The first inclined surface 9012 is located on one side of the plane 9011. The first inclined surface 9012 is used to slowly guide and push the plug claw block 905 so that the plug claw block 905 is towards the interior of the branch slot 904.

[0056] like Figure 4 and Figure 5 As shown, when the plug rod 902 is inserted, the stop block 9010 is pushed open; when the plug rod 902 is pulled out, the second spring 909 pushes the stop block 9010, and the flat surface 9011 on the stop block 9010 first contacts the plug claw block 905, providing initial blocking force; then, the first inclined surface 9012 begins to act; due to the inclination angle of the first inclined surface 9012, the force exerted by the stop block 9010 on the plug claw block 905 is no longer vertical, but an inclined component force; this inclined component force slowly guides the plug claw block 905. It is pushed into the interior of the branch slot 904; the angle of the inclined plane determines the pushing speed and force, which can be adjusted as needed to achieve precise control of the plug-in claw block 905; the whole process is gradual, avoiding sudden impact or jamming; the slow release action guided by the first inclined plane 9012 avoids violent impact between the plug-in claw block 905 and the branch slot 904, reducing wear and damage; moreover, the smoother plugging process reduces the possibility of connection failure due to impact and improves the reliability of the connection.

[0057] like Figure 4 and Figure 5 As shown, the busbar trunking of the mounting plate 6 is provided with a guide block 9013, the top of the guide block 9013 is provided with an indicator light 9014, the bottom of the indicator light 9014 is provided with a push-button switch, the guide block 9013 has an arc-shaped structure, and the inside of the guide block 9013 has an arc-shaped hole, the push-button switch is located inside the arc-shaped hole, the top of the plug claw block 905 is provided with a touch rod 9015, the touch rod 9015 has an arc-shaped structure, and the touch rod slides inside the arc-shaped hole and contacts the push-button switch.

[0058] like Figure 4 and Figure 5 As shown, when the plug-in claw block 905 is inserted and connected to the busbar trough, the contact rod 9015 moves downward and away from the switch, and the indicator light 9014 goes out. Conversely, when the plug-in claw block 905 is pulled out, the arc-shaped contact rod 9015 at its top slides along the arc-shaped hole inside the guide block 9013. This sliding action pushes the push-button switch, thereby illuminating the indicator light 9014 to indicate the connection status. The indicator light 9014 directly shows whether the plug-in claw block 905 has been correctly connected to the busbar trough, which is very intuitive and convenient for users to judge.

[0059] like Figure 4 and Figure 5 As shown, no additional steps are required to confirm the connection status; the insertion or removal of the connector 905 itself completes the status indication.

[0060] like Figure 4 and Figure 5As shown, in summary, this design achieves automatic indication and feedback of connection status through ingenious mechanical linkage, improving the reliability and ease of use of the system; the choice of arc structure further optimizes the cooperation between the touch rod 9015 and the switch, ensuring the reliability and smoothness of the operation.

[0061] like Figure 6 and Figure 7 As shown, the bottom of the power distribution module 8 is provided with a conductive wire 10, and the mounting plate 6 is provided with a wire harness assembly 11 for fixing the conductive wire 10. Specifically, the wire harness assembly 11 includes a crossbar 1101 fixed on the mounting plate 6 and a drive motor 1102. The output end of the drive motor 1102 is connected to a first gear 1103, and a second gear 1104 is meshed on one side of the first gear 1103. A cylindrical block 1105 is provided at the center of the bottom of the second gear 1104, and the cross section of the cylindrical block 1105 is elliptical. The structure is circular. The two ends of the crossbar 1101 are rotatably connected to the first clamping rod 1106 and the second clamping rod 1107, respectively. The middle part of the first clamping rod 1106 and the middle part of the second clamping rod 1107 are hinged to the crossbar 1101. One end of the first clamping rod 1106 and the second clamping rod 1107 are located on both sides of the cylindrical block 1105, respectively. The other end of the first clamping rod 1106 and the other end of the second clamping rod 1107 are respectively provided with the first clamping block 1108 and the second clamping block 1109.

[0062] like Figure 6 and Figure 7 As shown, the drive motor 1102 drives the first gear 1103 to rotate, which in turn drives the second gear 1104 to rotate. Since the cylindrical block 1105 on the second gear 1104 is elliptical, when the cylindrical block 1105 rotates, its center point moves along an elliptical trajectory. This elliptical motion is transmitted through the hinge structure of the first clamping rod 1106 and the second clamping rod 1107, which ultimately causes the first clamping block 1108 and the second clamping block 1109 to move relative to each other, thereby clamping or releasing the conductive wire 10 through the first clamping block 1108 and the second clamping block 1109. The elliptical cylindrical block 1105 ensures the change of clamping force and the smoothness of the clamping action.

[0063] like Figure 6 and Figure 7 As shown, a third spring is provided between the first clamping rod 1106 and the second clamping rod 1107 to serve as a reset mechanism between the first clamping rod 1106 and the second clamping rod 1107.

[0064] like Figure 6 and Figure 7As shown, the rotational motion of the elliptical cylindrical block 1105 provides a stable clamping force, ensuring that the conductive wire 10 is firmly fixed on the mounting plate 6. Compared with some simple linear clamping mechanisms, this design enables a smoother clamping and releasing process, reducing damage to the conductive wire 10.

[0065] like Figure 6 and Figure 7 As shown, in summary, this design achieves reliable, smooth, and adjustable bundling of the conductive wires 10 through a clever mechanical structure, thereby improving the reliability and service life of the power distribution module 8.

[0066] like Figure 7 As shown, the inner surfaces of the first clamping block 1108 and the second clamping block 1109 are both provided with semi-circular arc-shaped contact surfaces 11010. When the first clamping block 1108 and the second clamping block 1109 are in the closed state, the contact surfaces 11010 of the first clamping block 1108 and the second clamping block 1109 match the surface of the conductive wire 10.

[0067] like Figure 7 As shown, the semi-circular bonding surface 11010 can better adapt to the circular cross-section of the conductive wire 10. Even if the position of the conductive wire 10 is slightly offset or there is a slight bend, it can still ensure a large contact area. Compared with the flat surface 9011 bonding, this curved surface bonding can effectively reduce local stress, avoid damage to the conductive wire 10, and improve the stability of clamping, preventing the conductive wire 10 from slipping off. The semi-circular bonding surface 11010 increases the contact area and provides stronger friction, effectively preventing the conductive wire 10 from loosening or falling off, especially in environments with vibration or impact.

[0068] Working principle: In use, the user first places the conductive wire 10 on the power distribution module 8 between the first clamping block 1108 and the second clamping block 1109. By starting the drive motor 1102, the drive motor 1102 drives the first gear 1103 to rotate, which in turn drives the second gear 1104 to rotate. Since the cylindrical block 1105 on the second gear 1104 is elliptical, when the cylindrical block 1105 rotates, its center point moves along an elliptical trajectory. This elliptical motion is transmitted through the hinge structure of the first clamping rod 1106 and the second clamping rod 1107, ultimately causing the first clamping block 1108 and the second clamping block 1109 to move relative to each other, thereby clamping or releasing the conductive wire 10 through the first clamping block 1108 and the second clamping block 1109. The elliptical cylindrical block 1105 ensures the change of clamping force and the smoothness of the clamping action.

[0069] Then, the plug rod 902 on the power distribution module 8 is aligned with the slot 903 in the locking block 901 and pressed into the slot 903. When the plug rod 902 is inserted to a suitable depth, it will contact the plug claw block 905. By sliding the plug claw block 905, the second engagement groove 907 on the plug rod 902 engages with the first engagement groove 906 on the plug claw block 905, forming an additional mechanical locking mechanism. This engagement provides additional fixing force to prevent the plug rod 902 from loosening or falling off under vibration or other external forces.

[0070] At this time, when the plug-in claw block 905 is inserted and connected to the busbar, the contact rod 9015 moves downward and away from the switch, and the indicator light 9014 goes out.

[0071] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A distribution box with built-in bus duct comprising a distribution box body (1), characterized in that: The inner wall of the distribution box body (1) is fixedly provided with a fixed side plate (5), the fixed side plate (5) is provided with a mounting plate (6), the mounting plate (6) is provided with a mounting hole (7), the mounting hole (7) of the mounting plate (6) is internally provided with a bus duct, and the bus duct is internally provided with a plurality of copper bars for transmitting different electric energy loads; The bus duct of the mounting plate (6) is internally provided with a power distribution module (8), and the power distribution module (8) and the bus duct are provided with a quick plug-in assembly (9) for establishing quick assembly and disassembly between the bus duct and the power distribution module (8). The quick plug-in assembly (9) comprises a locking block (901) fixed in the bus duct and a plug-in rod (902) provided on the power distribution module (8), and the locking block (901) is internally provided with a plug-in slot (903) matched with the plug-in rod (902). The locking block (901) is internally provided with a branch slot (904), the branch slot (904) is in an arc structure, and the branch slot (904) is tangent to the long side direction of the plug-in slot (903), the plug-in slot (903) is internally provided with a plug-in claw block (905), the plug-in claw block (905) is provided with a first clamping slot (906), the plug-in rod (902) is provided with a second clamping slot (907) matched with the first clamping slot (906), when the plug-in rod (902) is inserted into the plug-in slot (903) of the locking block (901) and connected with the plug-in claw block (905), the first clamping slot (906) on the plug-in claw block (905) is clamped and connected with the second clamping slot (907) on the plug-in rod (902) by sliding the plug-in claw block (905). The plug-in slot (903) of the locking block (901) is internally provided with a second spring (909), one end of the second spring (909) is fixedly connected with the locking block (901), the other end of the second spring (909) is connected with an abutting block (9010), the upper surface of the abutting block (9010) is provided with a plane (9011), when the plug-in rod (902) is disconnected from the plug-in slot (903), the second spring (909) pushes the abutting block (9010), so that the plane (9011) on the abutting block (9010) is located at the tangent position between the branch slot (904) and the plug-in slot (903), and the plug-in claw block (905) is blocked in the branch slot (904).

2. The power distribution box with built-in busway of claim 1, wherein: The top of the distribution box body (1) is provided with a cover plate (2), one end of the cover plate (2) is rotatably connected with the distribution box body (1) through a hinge (3).

3. The power distribution box with built-in busway of claim 1, wherein: The branch slot (904) of the locking block (901) is internally provided with a first spring (908).

4. The power distribution box with built-in busway of claim 3, wherein: The upper surface of the abutting block (9010) is provided with a first inclined surface (9012), and the first inclined surface (9012) is located on one side of the plane (9011).

5. The power distribution box with built-in busway of claim 4, wherein: The bus duct of the mounting plate (6) is internally provided with a guide block (9013), the top of the guide block (9013) is provided with an indicating lamp (9014), the bottom of the indicating lamp (9014) is provided with a press switch, the guide block (9013) is of arc structure, and the inside of the guide block (9013) is provided with an arc hole, the press switch is located inside the arc hole, the top of the plug-in claw block (905) is provided with a touch rod (9015), the touch rod (9015) is of arc structure, and the touch rod (9015) slides in the arc hole and is in contact with the press switch.

6. The power distribution box with built-in busway of claim 1, wherein: The bottom of the power distribution module (8) is provided with a conductive wire (10), and the mounting plate (6) is provided with a wire binding assembly (11) for fixing the conductive wire (10).

7. The power distribution unit with built-in busway of claim 6, wherein: The wire binding assembly (11) comprises a cross rod (1101) and a driving motor (1102) fixed on the mounting plate (6), the output end of the driving motor (1102) is connected with a first gear (1103), one side of the first gear (1103) is connected with a second gear (1104) in meshing mode, the bottom center of the second gear (1104) is provided with a cylindrical block (1105), the cross section of the cylindrical block (1105) is of oval structure, both ends of the cross rod (1101) are rotatably connected with a first clamping rod (1106) and a second clamping rod (1107), respectively, the middle part of the first clamping rod (1106) and the middle part of the second clamping rod (1107) are hingedly arranged with the cross rod (1101), one end of the first clamping rod (1106) and one end of the second clamping rod (1107) are located on both sides of the cylindrical block (1105), respectively, the other end of the first clamping rod (1106) and the other end of the second clamping rod (1107) are provided with a first clamping block (1108) and a second clamping block (1109), respectively.

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