Mobile wiring plug structure of low-voltage power distribution cabinet drawer and low-voltage power distribution cabinet drawer
By designing a mobile wiring plug structure in the drawer of the low-voltage distribution cabinet, using components such as the mounting seat, conductive socket, slide post and mechanical limit switch, the contactor is completely disconnected when the drawer is drawn, solving the existing solution The problem of not being able to ensure the disconnection of the contactor in the technology improves the safety of the drawer drawing process.
Patent Information
- Application Number
- CN202422943820.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-12-02
AI Technical Summary
The existing low-voltage distribution cabinet drawers cannot guarantee that the contactor is disconnected during the pulling process, resulting in the inability to guarantee safety.
A low-voltage distribution cabinet drawer mobile wiring plug structure is designed, using components such as mounting seats, conductive sockets, slide columns, mechanical limit switches and rotary switches. By actively and passively controlling the contactor to be turned on and off, ensuring that the drawer is pulled. When the contactor is completely disconnected.
It realizes safety guarantee during the drawer drawing process, prevents misoperation and failure of power failure, and ensures the safety and reliability of the drawers of the low-voltage distribution cabinet.
Smart Images
Figure CN222282394U_ABST
Abstract
Description
Technical Field
[0001] The utility model specifically relates to a low-voltage distribution cabinet drawer movable wiring plug structure and a low-voltage distribution cabinet drawer, belonging to the technical field of low-voltage distribution cabinets. Background Art
[0002] Most of the switch cabinets currently produced use drawer-type switch cabinets. Drawer-type switch cabinets have high reliability, safety and interchangeability. They are suitable for industrial and mining enterprises and high-rise buildings with high power supply reliability as a centralized control distribution center; low-voltage drawer-type switch cabinets are closed shells made of steel plates, and the electrical components of the incoming and outgoing line circuits are installed in removable drawers to form functional units for a certain type of power supply task. The functional units are connected between busbars or cables; existing drawer-type switch cabinets such as China Patent Authorization Announcement No.: CN215378233U disclose a low-voltage distribution cabinet drawer movable wiring plug structure, including a drawer body, a protective cover and a fan, and a wire harness box is installed on the other side of the drawer body. The structure can provide protection for the plug head through the protective cover to prevent dust and liquid from entering the plug head, and at the same time, it can prevent the staff from accidentally touching the plug head and causing damage to the plug head; another example is China Patent Authorization Announcement No.: CN208015213U discloses a low-voltage power distribution cabinet drawer-type switch cabinet, including a power distribution cabinet, which also includes a control door, a first drawer cabinet and a second drawer cabinet, and the power distribution cabinet is connected with the control door, the first drawer cabinet and the second drawer cabinet; during the pulling process of the drawer cabinet, it is impossible to ensure that the contactor inside the drawer cabinet is disconnected, thereby failing to ensure the safety of the operation and inspection inside the drawer cabinet. Utility Model Content
[0003] In order to solve the above problems, the utility model proposes a low-voltage distribution cabinet drawer movable wiring plug structure and a low-voltage distribution cabinet drawer, which can actively control and dual passively control the on and off of the contactor, and can ensure the safety of the low-voltage distribution cabinet drawer pulling process.
[0004] The utility model discloses a low-voltage power distribution cabinet drawer movable wiring plug structure, comprising:
[0005] A mounting seat, wherein the bottom of the mounting seat is integrally formed with an extension portion; the mounting seat serves as a supporting component of the entire wiring plug structure, and the extension portion of the mounting seat can support the guide sleeve and the slide plate of the plug assembly;
[0006] Conductive sockets, wherein two groups of conductive sockets are provided and the conductive sockets are fixed on the hanging seat;
[0007] The plug assembly comprises a slide post, both sides of the front end of the slide post are integrally formed with a cartridge seat, and a plug is embedded in the end of the cartridge seat; a conductive flange is arranged on one side of the two cartridge seats facing each other, and the conductive flange is screwed and fixed to the side of the plug; a conductive rod is fixed between the two conductive flanges; a slideway is arranged at the bottom of the slide post; a support plate seat is fixed at the end of the slide post away from the cartridge seat; a guide sleeve is slidably arranged on the outside of the slide post, and a slide plate is integrally formed on the bottom of the inner side of the guide sleeve, and the slide plate is movably embedded in the slideway; the guide sleeve and the slide plate are fixed to the top surface of the extension portion;
[0008] A wiring assembly, the wiring assembly comprising an input cable connected to one conductive socket, another conductive socket connected to a mechanical limit switch; the other end of the mechanical limit switch is connected to an output cable;
[0009] A switch control assembly, the switch control assembly includes an opening seat fixed to the outside of a cylinder seat; a connecting rod is slidably arranged on the opening seat, a swing arm is fixed to the front end of the connecting rod, and a rotary switch is fixed to the rear end; the swing arm is directly opposite to the trigger end of the mechanical limit switch; the connecting rod is provided with a spring body and a limit plate on the inner side of the opening seat; the limit plate is fixed to the connecting rod; a damper is fixed to the end of the opening seat away from the swing arm, and the connecting rod moves through the damper.
[0010] When in use, the guide sleeve and the slide plate serve as the guide and limit members of the slide column, so that the slide column slides linearly on the guide sleeve and the slide plate; when the slide column slides, the plug is driven to slide synchronously, so that the plug and the conductive socket are plugged in or separated; when the plug is plugged in to the conductive socket, the two conductive sockets are electrically connected adjacently through the plug, the conductive flange and the conductive rod, so that the input cable and the output cable are connected; at the same time, when the slide column slides, it can synchronously drive the opening seat to slide synchronously, thereby driving the connecting rod and the swing arm to approach or move away from the mechanical limit switch, so that the swing arm is pressed onto the mechanical limit switch or separated from the mechanical limit switch; the spring body and the limit plate cooperate to enable the connecting rod to always press against the set position of the opening seat; when the input cable and the output cable need to be connected, the plug needs to be plugged in to the conductive socket first, and then the rotary switch is turned. The rotary switch drives the swing arm to rotate synchronously through the connecting rod, so that the swing arm rotates to the trigger end facing the mechanical limit switch; after the rotary switch completes the rotation, the rotation position is limited by the damper.
[0011] Furthermore, the damper includes a damping sleeve fixed on the open seat, a rubber pad is arranged on the inner side of the damping sleeve, and a plurality of adjusting bolts are screwed on the outside of the damping sleeve and tightened against the rubber pad. During operation, the rubber pad can be pushed by rotating the adjusting bolts, and the pre-tightening force of the rubber pad covering the connecting rod can be adjusted, thereby wrapping and limiting the connecting rod, and realizing circumferential limiting after the connecting rod rotates.
[0012] Furthermore, the conductive socket includes a U-shaped seat body, and wavy deformation parts are arranged on both sides of the U-shaped seat body; the bottom of the U-shaped seat body is integrally made with a mounting ear seat, which can be fixed to the hanging seat through the mounting ear seat, and the plug can be in close contact with the U-shaped seat body through the deformation part of the U-shaped seat body, thereby ensuring the stability of electrical contact.
[0013] Furthermore, the mechanical limit switch is fixed to the side of the conductive socket or to an independent support plate.
[0014] Furthermore, the sliding column, the cylinder seat and the connecting rod are all made of insulating materials.
[0015] A low-voltage power distribution cabinet drawer comprises a movable wiring plug structure for a low-voltage power distribution cabinet drawer, and also comprises a drawer body, wherein the drawer body is movably plugged into a drawer slot of the power distribution cabinet; a contactor is fixed inside the drawer body; two ends of the contactor are connected to an incoming cable and an outgoing cable; the mounting seat is fixed to the top of the inner side of the drawer slot, and the contactor and the mounting seat are staggered; the support plate seat is fixed to the inner side of the drawer body near a pull-out handle; the connecting rod movably passes through the outside of the drawer body and is fixed with a rotary switch; the input cable and the output cable are connected in series to a control circuit of the contactor; when working, the rotary switch needs to be rotated first so that the swing arm is positively pressed against the mechanical limit switch; then, after pressing the start button, the entire control circuit can be energized and the contactor is closed, and when the stop button is pressed, or the rotary switch is rotated to disengage the swing arm from the mechanical limit switch, or the drawer body is pulled out, the swing arm is separated from the mechanical limit switch, and the conductive socket and the plug are separated; the control circuit can be completely disconnected, so that the contactor can be completely disconnected when the inside of the drawer body is inspected.
[0016] Furthermore, the control circuit includes a control coil port, a start button and a stop button of a contactor connected in series with each other; the start button and the stop button are embedded in the drawer body, and both ends of the start button are connected to the auxiliary interface of the contactor. During operation, the start button is pressed to energize the control coil of the contactor, thereby closing the contactor. At the same time, the auxiliary interface of the contactor (the normally open interface of the contactor) is closed. At this time, the entire control circuit remains energized. When the stop button is pressed, the control circuit can be disconnected. At this time, the control coil of the contactor loses power, and the auxiliary interface of the contactor loses power synchronously, and the control circuit is disconnected.
[0017] Compared with the prior art, the low-voltage distribution cabinet drawer movable wiring plug structure and the low-voltage distribution cabinet drawer of the utility model can perform button-type and knob-type control through the stop button and the rotary switch when the functional components need to be operated or replaced, so as to realize mechanical active control of the contactor on and off. When there is no active circuit breaker control, when the drawer body is pulled out, the swing arm and the mechanical limit switch are actively separated, and then the conductive socket and the plug are automatically separated, so as to realize mechanical passive control disconnection of the contactor, which can prevent the phenomenon of power failure during the pulling and pulling process of the low-voltage distribution cabinet drawer due to misoperation, and at the same time prevent the rotary switch from sticking or the trigger end of the mechanical limit switch from sticking, resulting in power failure; it can ensure the safety of the pulling and pulling process of the low-voltage distribution cabinet drawer. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 The utility model is a schematic diagram of the overall structure of the mobile wiring plug structure.
[0019] Figure 2 This is a schematic diagram of the mobile wiring plug structure of the utility model without the mounting base structure.
[0020] Figure 3 For the utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.
[0021] Figure 4 For the utility model Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.
[0022] Figure 5 The utility model is a schematic diagram of the installation structure of the conductive socket, the plug assembly, the wiring assembly, the mechanical limit switch and the independent support plate.
[0023] Figure 6 It is a schematic diagram of the installation structure of the conductive socket and plug assembly of the utility model.
[0024] Figure 7 It is a schematic diagram of the installation structure of the guide sleeve and the slide plate of the utility model.
[0025] Figure 8 The utility model is a schematic diagram of the installation structure of the conductive socket and the plug.
[0026] Fig. 9 The utility model is a schematic diagram of the drawer structure of the low-voltage power distribution cabinet.
[0027] Fig.10 This is a schematic diagram of the structure of the mobile wiring plug structure of the utility model connected to the control circuit.
[0028] Figure numerals: 1, hanging seat, 2, extension part, 3, conductive socket, 4, sliding column, 5, cylinder seat, 6, plug, 7, conductive flange, 8, conductive rod, 9, slide, 10, support plate seat, 11, guide sleeve, 12, slide plate, 13, input cable, 14, mechanical limit switch, 15, output cable, 16, opening seat, 17, connecting rod, 18, swing arm, 19, rotary switch, 20, spring body, 21, limit plate, 22, damper, 23, damping sleeve, 24, rubber pad, 25, adjusting bolt, 26, U-shaped seat, 27, mounting ear seat, 28, drawer body, 29, drawer slot, 30, contactor, 31, start button, 32, stop button, 33, control coil, 34, auxiliary interface. DETAILED DESCRIPTION
[0029] Example:
[0030] like Figures 1 to 10 The low-voltage distribution cabinet drawer movable wiring plug structure shown includes:
[0031] A mounting base 1, wherein the bottom of the mounting base 1 is integrally formed with an extension portion 2; the mounting base 1 serves as a supporting component of the entire wiring plug structure, and the extension portion 2 of the mounting base 1 can support the guide sleeve 11 and the slide plate 12 of the plug assembly;
[0032] Conductive sockets 3, wherein two groups of conductive sockets 3 are provided, and the conductive sockets 3 are fixed on the hanging seat 1;
[0033] The plug assembly includes a slide post 4, and the two sides of the front end of the slide post 4 are integrally formed with a cartridge seat 5, and the end of the cartridge seat 5 is embedded with a plug 6; the two cartridge seats 5 are close to each other and are provided with a conductive flange 7 facing each other, and the conductive flange 7 is screwed and fixed to the side of the plug 6; a conductive rod 8 is fixed between the two conductive flanges 7; a slideway 9 is provided at the bottom of the slide post 4; a support plate seat 10 is fixed to the end of the slide post 4 away from the cartridge seat 5; a guide sleeve 11 is slidably provided on the outside of the slide post 4, and a slide plate 12 is integrally formed on the inner bottom of the guide sleeve 11, and the slide plate 12 is movably embedded with the slideway 9; the guide sleeve 11 and the slide plate 12 are fixed to the top surface of the extension part 2;
[0034] A wiring assembly, the wiring assembly includes an input cable 13 connected to one conductive socket 3, and another conductive socket 3 is connected to a mechanical limit switch 14; the other end of the mechanical limit switch 14 is connected to an output cable 15;
[0035] A switch control assembly, the switch control assembly includes an opening seat 16 fixed to the outside of a cylinder seat 5; a connecting rod 17 is slidably arranged on the opening seat 16, a swing arm 18 is fixed to the front end of the connecting rod 17, and a rotary switch 19 is fixed to the rear end; the swing arm 18 is directly opposite to the trigger end of the mechanical limit switch 14; the connecting rod 17 is provided with a spring body 20 and a limit plate 21 on the inner side of the opening seat 16; the limit plate 21 is fixed to the connecting rod 17; a damper 22 is fixed to the end of the opening seat 16 away from the swing arm 18, and the connecting rod 17 moves through the damper 22.
[0036] When in use, the guide sleeve 11 and the slide plate 12 serve as guides and limiters for the slide column 4, so that the slide column 4 slides linearly on the guide sleeve 11 and the slide plate 12; when the slide column 4 slides, the plug 6 is driven to slide synchronously, so that the plug 6 and the conductive socket 3 are plugged in or separated; when the plug 6 is plugged in the conductive socket 3, the two conductive sockets 3 are adjacently electrically connected through the plug 6, the conductive flange 7 and the conductive rod 8, so that the input cable 13 and the output cable 15 are connected; at the same time, when the slide column 4 slides, it can synchronously drive the opening seat 16 to slide synchronously, thereby driving the connecting rod 17 and the swing arm 18 to move closer to or away from the machine The mechanical limit switch 14 is pressed against the swing arm 18 or separated from the mechanical limit switch 14; the spring body 20 and the limit plate 21 cooperate to enable the connecting rod 17 to always press against the set position of the opening seat 16; when the input cable 13 and the output cable 15 need to be connected, the plug 6 needs to be plugged into the conductive socket 3 first, and then the rotary switch 19 is turned. The rotary switch 19 drives the swing arm 18 to rotate synchronously through the connecting rod 17, so that the swing arm 18 rotates to the trigger end facing the mechanical limit switch 14; after the rotary switch 19 completes the rotation, the damper 22 is used to limit the rotation position.
[0037] The damper 22 includes a damping sleeve 23 fixed on the open seat 16, a rubber pad 24 is arranged on the inner side of the damping sleeve 23, and a plurality of adjusting bolts 25 are screwed on the outside of the damping sleeve 23 and pressed against the rubber pad 24. During operation, the rubber pad 24 can be pushed by rotating the adjusting bolts 25, and the pre-tightening force of the rubber pad 24 covering the connecting rod 17 can be adjusted, thereby wrapping and limiting the connecting rod 17, and realizing circumferential limitation after the connecting rod 17 rotates.
[0038] The conductive socket 3 includes a U-shaped seat body 26, and wave-shaped deformation parts are arranged on both sides of the U-shaped seat body 26; a mounting ear seat 27 is integrally formed at the bottom of the U-shaped seat body 26, and the mounting ear seat 27 can be fixed to the hanging seat 1, and the deformation part of the U-shaped seat body 26 can make the plug 6 in close contact with the U-shaped seat body 26, thereby ensuring the stability of electrical contact.
[0039] The mechanical limit switch 14 is fixed to the side of the conductive socket 3 or to an independent support plate.
[0040] The slide post 4 , the cylinder seat 5 and the connecting rod 17 are all made of insulating materials.
[0041] A low-voltage power distribution cabinet drawer, including a low-voltage power distribution cabinet drawer movable wiring plug structure, and also includes a drawer body 28, the drawer body 28 is movably plugged into a drawer slot 29 of the power distribution cabinet; a contactor 30 is fixed inside the drawer body 28; two ends of the contactor 30 are connected to an incoming cable and an outgoing cable; the hanging seat 1 is fixed to the top of the inner side of the drawer slot 29, and the contactor 30 and the hanging seat 1 are staggered; The support plate seat 10 is fixed to the inner side of the drawer body 28 near the pull-out handle; the connecting rod 17 is movable to pass through the outside of the drawer body 28 and is fixed with a rotary switch 19; the input cable 13 and the output cable 15 are connected in series to the control circuit of the contactor 30; when working, it is necessary to first rotate the rotary switch 19 so that the swing arm 18 is pressed against the mechanical limit switch 14; then, after pressing the start button 31, the entire control circuit can be energized and the contactor 30 is closed. When the stop button 32 is pressed, or the rotary switch 19 is rotated to disengage the swing arm 18 from the mechanical limit switch 14, or the drawer body 28 is pulled out to separate the swing arm 18 from the mechanical limit switch 14, and the conductive socket 3 and the plug 6 are separated; the control circuit can be completely disconnected, so that the contactor 30 can be completely disconnected when the inside of the drawer body 28 is inspected.
[0042] The control circuit includes a control coil 33 port of a contactor 30, a start button 31 and a stop button 32 connected in series with each other; the start button 31 and the stop button 32 are embedded in the drawer body 28, and both ends of the start button 31 are connected to the auxiliary interface 34 of the contactor 30. During operation, pressing the start button 31 can energize the control coil 33 of the contactor 30, thereby closing the contactor 30. At the same time, the auxiliary interface 34 of the contactor 30 (the normally open interface of the contactor 30) is closed. At this time, the entire control circuit remains energized. When the stop button 32 is pressed, the control circuit can be disconnected. At this time, the control coil 33 of the contactor 30 loses power, and the auxiliary interface 34 of the contactor 30 loses power synchronously, and the control circuit is disconnected.
[0043] The above embodiments are only preferred implementations of the present invention, so any equivalent changes or modifications made according to the structures, features and principles described in the scope of application of the present invention are included in the scope of application of the present invention.
Claims
1. A low-voltage distribution cabinet drawer movable wiring plug structure, characterized in that: include: A mounting seat, wherein the bottom of the mounting seat is integrally formed with an extension portion; Conductive sockets, wherein two groups of conductive sockets are provided and the conductive sockets are fixed on the hanging seat; The plug assembly comprises a slide post, both sides of the front end of the slide post are integrally formed with a cartridge seat, and a plug is embedded in the end of the cartridge seat; a conductive flange is arranged on one side of the two cartridge seats facing each other, and the conductive flange is screwed and fixed to the side of the plug; a conductive rod is fixed between the two conductive flanges; a slideway is arranged at the bottom of the slide post; a support plate seat is fixed at the end of the slide post away from the cartridge seat; a guide sleeve is slidably arranged on the outside of the slide post, and a slide plate is integrally formed on the bottom of the inner side of the guide sleeve, and the slide plate is movably embedded in the slideway; the guide sleeve and the slide plate are fixed to the top surface of the extension portion; A wiring assembly, the wiring assembly comprising an input cable connected to one conductive socket, another conductive socket connected to a mechanical limit switch; the other end of the mechanical limit switch is connected to an output cable; A switch control assembly, the switch control assembly includes an opening seat fixed to the outside of a cylinder seat; a connecting rod is slidably arranged on the opening seat, a swing arm is fixed to the front end of the connecting rod, and a rotary switch is fixed to the rear end; the swing arm is directly opposite to the trigger end of the mechanical limit switch; the connecting rod is provided with a spring body and a limit plate on the inner side of the opening seat; the limit plate is fixed to the connecting rod; a damper is fixed to the end of the opening seat away from the swing arm, and the connecting rod moves through the damper.
2. The low-voltage distribution cabinet drawer movable wiring plug structure according to claim 1 is characterized in that: The damper comprises a damping sleeve fixed on the opening seat, a rubber pad is arranged on the inner side of the damping sleeve, and a plurality of adjusting bolts which are tightened against the rubber pad are screwed on the outer side of the damping sleeve.
3. The low-voltage distribution cabinet drawer movable wiring plug structure according to claim 1 is characterized in that: The conductive socket comprises a U-shaped seat body, and wave-shaped deformation parts are arranged on both sides of the U-shaped seat body; and a mounting ear seat is integrally formed at the bottom of the U-shaped seat body.
4. The low-voltage distribution cabinet drawer movable wiring plug structure according to claim 1 is characterized in that: The mechanical limit switch is fixed on the side of the conductive socket or on an independent support plate.
5. The low-voltage distribution cabinet drawer movable wiring plug structure according to claim 1 is characterized in that: The sliding column, the cylinder seat and the connecting rod are all made of insulating materials.
6. A low-voltage power distribution cabinet drawer, comprising the low-voltage power distribution cabinet drawer movable wiring plug structure according to any one of claims 1 to 5, and also comprising a drawer body, the drawer body being movably plugged into the drawer slot of the power distribution cabinet; a contactor is fixed inside the drawer body; both ends of the contactor are connected to an incoming cable and an outgoing cable; characterized in that: The hanging seat is fixed to the top of the inner side of the drawer slot, and the contactor and the hanging seat are staggered; the support plate seat is fixed to the inner side of the drawer body close to the pull-out handle; the connecting rod is movable to pass through the outside of the drawer body and is fixed with a rotary switch; the input cable and the output cable are connected in series to the control circuit of the contactor.
7. The low-voltage distribution cabinet drawer according to claim 6 is characterized in that: The control circuit includes a control coil port of a contactor connected in series, a start button and a stop button; the start button and the stop button are embedded in the drawer body, and both ends of the start button are connected to the auxiliary interface of the contactor.