Rapid and accurate cable access device for generator car

Abstract

The invention discloses a rapid and accurate cable access device for a generator car, and belongs to the technical field of power connection. Comprising a butt joint socket (comprising an installation cover plate, a protection sleeve and a copper column) fixed at a generator car end, a clamped connection assembly (a butt joint sleeve and a limiting rod are arranged in a plug), a floating assembly (a spring loading connector and a floating conductive core) and a cable crimping assembly (a cable gland and a wire pressing copper pipe) are arranged in the connection assembly, and a core component adopts a silver-plated thick copper piece. And the mounting cover plate is provided with a protective cover with a torsional spring. Rapid operation of a single person is achieved through a push-in-rotation-clamping butt joint structure, the floating assembly compensates deviation to guarantee stable contact, and safety is improved through multiple protection. And the device is suitable for emergency power supply and other scenes.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of power connection, and particularly relates to a generator car cable rapid and accurate access device. BACKGROUND

[0002] In emergency power supply and distribution network non-stop operation, as a key emergency power supply equipment, the rapid and reliable access of the cable of the generator car to the external system is directly related to the power supply continuity and operation safety. The traditional generator car cable connection generally adopts a "copper nose + bolt fastening" scheme, that is, the copper nose at the end of the cable is fixed to the copper plate in the distribution box of the generator car through bolts, so as to realize power transmission. This scheme has exposed many problems in long-term application in the power industry, and has been difficult to meet the needs of modern emergency power supply for efficiency and safety. The main defects are as follows:

[0003] 1. Low installation efficiency and complicated operation process: the traditional scheme needs to fasten the copper nose and the copper plate through multiple bolts one by one, and multiple people need to cooperate during operation: one person supports the copper nose for alignment, and the other person uses a wrench to tighten the bolts one by one (the average time for single connection is 15-20 minutes). In emergency scenarios (such as power outage repair and natural disaster rescue), the long installation time will cause the power supply interruption period to be prolonged, increasing the economic loss and safety risk.

[0004] 2. Poor contact stability and easy to cause heating hazards: the coaxiality deviation of the copper nose and the copper plate is easy to occur during manual alignment, which causes uneven contact pressure and excessive local resistance; at the same time, the fastening force of the bolt depends on the experience of the workers, and it is easy to cause "over-tightening leading to thread slipping" or "loose leading to poor contact", and the contact resistance is further increased due to vibration, thermal expansion and contraction and other factors after long-term operation, which causes local overheating and risks burning the insulation layer. SUMMARY

[0005] The application provides a generator car cable rapid and accurate access device, which realizes centering and elastic pressure connection during the plugging and unplugging process of the cable through the cooperation of the floating conductive core and the spring-loaded connector, so as to solve the problems of low connection efficiency and unreliable contact in the prior art.

[0006] To achieve the above purpose, the application provides a generator car cable rapid and accurate access device, which comprises a docking socket, the docking socket is fixed to the end of the generator car, and is connected with the copper plate of the distribution box through a copper column to realize power transmission.

[0007] The connecting assembly is provided with a floating assembly near one end of the docking socket, and a cable crimping assembly is fixedly arranged at the other end, one end of the cable crimping assembly is connected with the cable, and the other end extends into the connecting assembly and is connected with the floating assembly.

[0008] In an embodiment, the connecting assembly comprises a plug, a limiting sleeve ring is arranged at one end of the plug near the docking socket, the limiting sleeve ring is sleeved on the end of the docking socket and is clamped with the end of the docking socket through a limiting rod, the limiting rod is fixedly arranged in the plug, and a docking sleeve is fixedly arranged in the plug and is inserted into the docking socket along with the plug.

[0009] In an embodiment, the docking socket comprises a mounting cover plate fixed to the end of the power generation vehicle, a protective sleeve is fixedly arranged in the mounting cover plate coaxially, a limiting boss is arranged at one end of the protective sleeve penetrating through the mounting cover plate, and the other end is fixedly connected with the copper column, an installation ring groove is arranged in the limiting boss corresponding to the limiting rod, a stop notch is arranged at the end of the installation ring groove, and a docking groove is arranged in the limiting boss corresponding to the docking sleeve, and the docking sleeve is inserted into the docking groove to realize positioning connection.

[0010] In an embodiment, a mounting hole is arranged on the mounting cover plate, and the mounting hole is used to fix the mounting cover plate to the end face of the power distribution box of the power generation vehicle through fasteners.

[0011] In an embodiment, a rubber waterproof ring is arranged between the inner wall of the docking groove and the outer wall of the docking sleeve.

[0012] In an embodiment, the floating assembly comprises a spring-loaded connector and a floating conductive core, the spring-loaded connector is arranged in the plug, one end of the spring-loaded connector is abutted with the cable crimping assembly, and the other end is connected with the floating conductive core, the floating conductive core is arranged in the plug to slide axially, and the copper column is elastically abutted when the limiting rod and the installation ring groove are clamped.

[0013] In an embodiment, the cable crimping assembly comprises a cable gland fixedly arranged at one end of the plug away from the mounting cover plate, the cable gland is used to clamp and fix the connected cable, one end of the cable extending into the inside of the plug through the cable gland is crimped and fixed with a wire pressing copper pipe, and the wire pressing copper pipe is elastically abutted with the spring-loaded connector.

[0014] In an embodiment, the copper column, the crimped copper tube, the spring-loaded connector and the floating conductive core are all made of silver-plated thick copper pieces.

[0015] In an embodiment, one end of the hinge is symmetrically arranged on both sides of the mounting cover plate, and the other end of the hinge is fixedly provided with a protective cover.

[0016] In an embodiment, a torsional spring is arranged between the hinge and the protective cover.

[0017] Compared with the prior art, the application has the following beneficial effects:

[0018] 1. Realize fast and accurate docking, and significantly improve installation efficiency: the device replaces the traditional "copper nose" bolt fastening mode through the integrated docking structure (plug, docking sleeve, limiting rod and mounting ring groove cooperation) of "push in-rotate-clamp". When connecting, only need to align the plug with the docking socket and push it axially, and rotate it clockwise by 90° to complete the clamping positioning. The whole process does not need tool assistance, and one person can operate to complete the access. Compared with the traditional scheme, the installation time is shortened by more than 90%, the waiting period of emergency power supply is greatly reduced, and it is especially suitable for fast power deployment in emergency scenes such as power repair and natural disasters.

[0019] 2. Floating conductive contact design, guaranteeing connection stability and reliability: the floating assembly composed of the built-in spring-loaded connector and the floating conductive core in the device can elastically slide along the axial direction, automatically compensating for the position deviation caused by processing error, installation deviation or vibration during docking, and ensuring that the floating conductive core and the end face of the copper column always maintain uniform contact pressure. This design effectively avoids the "virtual connection" and "spark" phenomenon that may occur in traditional rigid connection, reduces the risk of impedance fluctuation, improves the continuity and stability of power transmission, and guarantees the safe operation under large current (rated current ≥630A) conditions. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figure 1 The overall schematic diagram of the power car cable fast and accurate access device provided by the application is shown in the figure.

[0022] Figure 2 The right side view schematic diagram of the power car cable fast and accurate access device provided by the application is shown in the figure.

[0023] Figure 3The internal section view schematic diagram of the power car cable quick and accurate access device provided in the application is shown in the figure;

[0024] Figure 4 The explosion schematic diagram of the power car cable quick and accurate access device provided in the application is shown in the figure Figure 1 ;

[0025] Figure 5 The explosion schematic diagram of the power car cable quick and accurate access device provided in the application is shown in the figure Figure 2 ;

[0026] Figure 6 The installation base schematic diagram of the power car cable quick and accurate access device provided in the application is shown in the figure;

[0027] Figure 7 The clamping state schematic diagram of the power car cable quick and accurate access device provided in the application is shown in the figure;

[0028] Figure 8 The installation base right view internal schematic diagram of the power car cable quick and accurate access device provided in the application is shown in the figure;

[0029] Figure 9 The installation base right view schematic diagram of the power car cable quick and accurate access device provided in the application is shown in the figure.

[0030] The figure caption is explained: 1, installation cover plate; 2, protective sleeve; 3, protective cover; 4, copper column; 5, hinge; 6, torsion spring; 7, cable; 8, wire pressing copper pipe; 9, spring-loaded connector; 10, floating conductive core; 11, plug; 12, cable gland; 13, butt joint sleeve; 14, butt joint groove; 15, rubber waterproof ring; 16, installation ring groove; 17, limiting rod. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the application more clear, the technical scheme in the embodiments of the application is described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor also belong to the protection scope of the application.

[0032] Referring to Figures 1 to 9 The power car cable quick and accurate access device provided in the application is shown in the figure, which includes a butt joint socket, the butt joint socket is fixed to the end of the power car, and power transmission is realized through the copper column 4 and the copper plate connection of the distribution box;

[0033] The connecting assembly is provided with a floating assembly near one end of the connecting assembly close to the docking socket and a cable crimping assembly fixed at the other end, one end of the cable crimping assembly is connected with the cable 7, the other end extends into the connecting assembly and is connected with the floating assembly, and the floating assembly abuts against the copper column 4 when the connecting assembly and the docking socket are in the docking state.

[0034] During use, first, the cable 7 connection part is stripped to expose the metal conductor part, and then the cable crimping assembly is used to crimp and fix it, and at the same time of completing the cable crimping and fixing, the metal conductor is ensured to reliably contact the conductive part of the floating assembly, thereby guaranteeing the stable transmission of current.

[0035] After the above preparation work is completed, the connecting assembly is aligned with the docking socket, pushed axially into the preset position, and then rotated clockwise by 90°, so that the connecting assembly is clamped with the docking socket, and after the connecting assembly is clamped with the docking socket, the floating assembly is tightly abutted against the copper column end face 4, thereby quickly and reliably connecting the power generation vehicle with the external power supply line, realizing the continuous and stable output of power. The structure design not only improves the access efficiency, but also effectively compensates for the position deviation in the docking process through the floating assembly, ensures the uniform contact pressure between the copper column 4, reduces the contact resistance, and improves the safety.

[0036] Optionally, the connecting assembly includes a plug 11, the plug 11 is provided with a limiting sleeve ring at one end close to the docking socket, the limiting sleeve ring is sleeved on the end portion of the docking socket and is clamped with the end portion of the docking socket through a limiting rod 17, the limiting rod 17 is fixedly arranged in the plug 11, a docking sleeve 13 is fixedly arranged in the plug 11, and the docking sleeve 13 is inserted into the docking socket along with the plug 11.

[0037] In the embodiment, during docking, the worker holds the plug 11 and aligns it with the docking socket, and smoothly pushes it into the limiting sleeve ring and the end portion of the docking socket, and in the pushing process, the limiting rod 17 and the docking sleeve 13 are simultaneously inserted into the end portion of the docking socket, and then the plug 11 is rotated clockwise by about 90°, so that the limiting rod 17 is clamped into the docking socket to form locking positioning.

[0038] Optionally, the docking socket comprises a mounting cover plate 1 fixed to the end of the power car, a protective sleeve 2 is coaxially fixed in the mounting cover plate 1, a limiting boss is arranged at one end of the protective sleeve 2 penetrating through the mounting cover plate 1, and the other end is fixedly connected with the copper column 4, an installation ring groove 16 is arranged in the limiting boss corresponding to the limiting rod 17, a stop notch is arranged at the end of the installation ring groove 16, and a docking groove 14 is arranged in the limiting boss corresponding to the docking sleeve 13, and the docking sleeve 13 is inserted into the docking groove 14 to realize positioning connection.

[0039] In the embodiment, when the plug 11 is pushed into the docking socket, the limiting boss is nested in the limiting sleeve ring, the docking sleeve 13 is synchronously inserted into the docking groove 14, until the limiting sleeve ring is attached to the end face of the limiting boss, at this time, the limiting rod 17 is synchronously aligned and inserted into the installation ring groove 16, then the plug 11 is rotated by 90° to make the limiting rod 17 slide along the installation ring groove 16 and be clamped into the stop notch, so as to realize the locking and limiting of the plug 11. After rotation, the stop notch limits the retreat of the limiting rod 17, and ensures that the connection is stable and reliable. At the same time, the cooperation of the docking sleeve 13 and the docking groove 14 ensures the coaxial alignment between the plug and the socket, and further improves the connection accuracy.

[0040] Optionally, a mounting hole is arranged on the mounting cover plate 1, and the mounting hole is used for fixing the mounting cover plate 1 to the end face of the power car distribution box through a fastener. The mounting holes are circumferentially distributed, which is convenient for uniform stress and improves the overall structural stability.

[0041] The fastener can adopt a high-strength bolt or a stainless steel screw, and the appropriate specification is selected according to the material and installation environment of the end face of the distribution box, so as to ensure that the connection is firm and has good anti-vibration performance. In the vibration frequent power car running condition, an elastic washer or a flat washer combination can also be additionally installed to prevent the fastener from loosening due to long-term vibration, and to further improve the installation reliability.

[0042] Optionally, a rubber waterproof ring 15 is arranged between the inner wall of the docking groove 14 and the outer wall of the docking sleeve 13. When the docking sleeve 13 is inserted into the docking groove 14, the rubber waterproof ring 15 is elastically deformed by extrusion, tightly adheres to the outer wall of the docking sleeve 13, effectively blocks rainwater and dust from entering the connection area, and improves the sealing performance when used outdoors.

[0043] It should be noted that the rubber waterproof ring 15 is coaxially sleeved on the outer wall of the butt joint sleeve 13, and the cross section of the rubber waterproof ring 15 is a trapezoidal structure, the small end of which faces the plug insertion direction, and the large end is attached to the inner wall of the butt joint groove 14, further enhancing the contact area and pressure resistance of the sealing interface. This design can produce progressive compression deformation during assembly, ensuring that the waterproof ring maintains stable resilience in a long-term vibration or temperature change environment, effectively preventing sealing failure caused by material aging, thereby continuously ensuring the insulation performance and service life of the electrical connection part.

[0044] Optionally, the floating assembly includes a spring-loaded connector 9 and a floating conductive core 10, the spring-loaded connector 9 is arranged inside the plug 11, one end of the spring-loaded connector 9 is in abutment with the cable crimping assembly, the other end is connected with the floating conductive core 10, the floating conductive core 10 is arranged in the plug 11 in the axial direction, and is in elastic abutment with the copper column 4 when the limiting rod 17 and the mounting ring groove 16 are in the clamped state.

[0045] In this embodiment, after the plug 11 is rotationally locked by the limiting rod 17 cooperating with the mounting ring groove 16, the floating conductive core 10 is pushed forward in the axial direction under the pre-pressure of the spring-loaded connector 9, thereby forming a stable and low-resistance electrical contact between the end of the floating conductive core 10 and the surface of the copper column 4, effectively compensating for the axial gap caused by processing errors or installation deviations, ensuring continuous and reliable power transmission. At the same time, under the vibration of the vehicle or external force disturbance, the spring-loaded connector 9 can absorb displacement impact and maintain constant contact pressure, avoiding loosening or sparking phenomenon, significantly improving connection safety and durability.

[0046] Optionally, the cable crimping assembly includes a cable gland 12 fixedly arranged at one end of the plug 11 away from the mounting cover plate 1, the cable gland 12 is used to clamp and fix the connected cable 7, the cable 7 extends through the cable gland 12 into the inside of the plug 11, and one end of the cable 7 is crimped and fixed with the wire pressing copper pipe 8, the wire pressing copper pipe 8 is in elastic abutment with the spring-loaded connector 9.

[0047] In this embodiment, the cable 7 is firmly fixed to the end of the plug 11 by the cable gland 12, effectively preventing internal connection loosening caused by external force pulling. At the same time, after the cable 7 extends into the inside of the plug 11, its end is reliably electrically connected with the wire pressing copper pipe 8 through the crimping process, ensuring continuous and stable conduction path. The wire pressing copper pipe 8 is rigidly connected with the spring-loaded connector 9, so that the current of the generator car is transmitted to the floating conductive core 10 through the copper column 4, then introduced into the wire pressing copper pipe 8 through the spring-loaded connector 9, and finally conducted to the cable 7, forming a complete conduction loop. This structure realizes quick plug-in and plug-out while ensuring the stability and safety of electrical connection, and is suitable for frequent operation scenes in outdoor harsh environments.

[0048] It should be noted that the cable 7 before crimping with the wire crimping copper tube 8, the crimping part needs to remove the outer insulation sheath, expose the internal conductor part, ensure the conductor length matches the inner cavity of the wire crimping copper tube 8, avoid too long or too short leading to poor contact or crimping failure.

[0049] Optionally, the copper column 4, the wire crimping copper tube 8, the spring-loaded connector 9 and the floating conductive core 10 are all made of silver-plated thick copper pieces. The silver-plated layer can significantly reduce the contact resistance, improve the conductivity, and at the same time enhance the anti-corrosion and anti-oxidation ability of the components, especially suitable for high humidity, high salt spray outdoor operating environment. The thick copper substrate ensures the mechanical strength and current carrying capacity of the overall structure, effectively carries the large current load output by the power car, and avoids overheating damage.

[0050] Optionally, one end of the hinge 5 is symmetrically arranged on both sides of the mounting cover plate 1, and the other end of the hinge 5 is fixedly provided with the protective cover 3. The torsional spring 6 is arranged between the hinge 5 and the protective cover 3.

[0051] In this embodiment, under the elastic action of the torsional spring 6, the two protective covers 3 can be automatically opened, so that they always cover the copper column 4 in front of the mounting cover plate 1 during the plugging process of the staff, forming physical isolation, effectively preventing the operator from touching the live parts, and improving the use safety.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand; it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for quick and accurate connection of generator vehicle cables, comprising a docking socket, characterized in that: The docking socket is fixed to the generator vehicle end and is connected to the distribution box copper plate through the copper column (4) to realize power transmission; The docking socket is snapped with a connecting component at one end away from the generator car. A floating component is provided at one end of the connecting component near the docking socket, and a cable crimping component is fixedly provided at the other end. One end of the cable crimping component is connected to the cable (7), and the other end extends into the interior of the connecting component and is connected to the floating component. The floating component abuts against the copper column (4) when the connecting component and the docking socket are in the docking state.

2. The rapid and accurate connection device for generator vehicle cables according to claim 1, characterized in that: The connecting assembly includes a plug (11), and a limiting collar is provided at one end of the plug (11) near the docking socket. The limiting collar is sleeved on the end of the docking socket and is engaged with the end of the docking socket by a limiting rod (17). The limiting rod (17) is fixedly disposed inside the plug (11). A docking sleeve (13) is fixedly disposed inside the plug (11). The docking sleeve (13) is inserted into the docking socket along with the plug (11).

3. The rapid and accurate connection device for generator vehicle cables according to claim 2, characterized in that: The docking socket includes a mounting cover plate (1) fixed to the generator end. A protective sleeve (2) is coaxially fixed inside the mounting cover plate (1). One end of the protective sleeve (2) near the plug (11) passes through the mounting cover plate (1) and is provided with a limiting boss. The other end is fixedly connected to the copper column (4). The limiting boss is provided with a mounting ring groove (16) corresponding to the limiting rod (17). The end of the mounting ring groove (16) is provided with a stop notch. The limiting boss is provided with a docking groove (14) corresponding to the docking sleeve (13). The docking sleeve (13) is inserted into the docking groove (14) to achieve positioning connection.

4. The rapid and accurate connection device for generator vehicle cables according to claim 3, characterized in that: An installation hole is provided on the mounting cover plate (1), which is used to fix the mounting cover plate (1) to the end face of the generator car distribution box by fasteners.

5. The rapid and accurate connection device for generator vehicle cables according to claim 3, characterized in that: A rubber waterproof ring (15) is provided between the inner wall of the docking groove (14) and the outer wall of the docking sleeve (13).

6. The rapid and accurate connection device for generator vehicle cables according to claim 3, characterized in that: The floating component includes a spring-loaded connector (9) and a floating conductive core (10). The spring-loaded connector (9) is located inside the plug (11), and one end of the spring-loaded connector (9) abuts against the cable crimping assembly, while the other end is connected to the floating conductive core (10). The floating conductive core (10) slides axially within the plug (11) and elastically abuts against the copper post (4) when the limiting rod (17) and the mounting ring groove (16) are in a snap-fit ​​state.

7. The rapid and accurate connection device for generator vehicle cables according to claim 6, characterized in that: The cable crimping assembly includes a cable cover (12) fixedly disposed at one end of the plug (11) away from the mounting cover (1). The cable cover (12) is used to clamp and fix the connected cable (7). One end of the cable (7) extends through the cable cover (12) into the plug (11) and is crimped and fixed to the crimping copper tube (8). The crimping copper tube (8) elastically abuts against the spring-loaded connector (9).

8. The generator car cable quick and accurate connection device according to claim 7, characterized in that: The copper pillar (4), the pressure copper tube (8), the spring-loaded connector (9), and the floating conductive core (10) are all made of silver-plated thick copper parts.

9. The generator car cable quick and accurate connection device according to any one of claims 1-8, characterized in that: The mounting cover (1) has hinges (5) symmetrically arranged on both sides, and a protective cover (3) is fixedly provided on the other end of the hinges (5).

10. The generator car cable fast and accurate connection device according to claim 9, characterized in that: A torsion spring (6) is provided between the hinge (5) and the protective cover (3).

Images