Overload disconnecting device for electrical equipment
By designing an overload disconnection device for electrical equipment, and utilizing an electric telescopic rod and magnetic attraction to achieve automatic power cut-off or power supply, the problem of slow response speed of existing power-limiting devices is solved, labor costs are reduced, and the efficiency of intelligent power management in public areas is improved.
Patent Information
- Application Number
- CN202520130886.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Current power rationing devices have slow response times and cannot automatically cut off power, resulting in high labor costs and making it difficult to achieve intelligent power management in public areas.
Design an overload disconnection device for electrical equipment. It can automatically disconnect or supply power through an electric telescopic rod and magnetic attraction, and eliminate electric arc by combining an arc extinguishing plate. The structure is simple and reasonable and can be remotely controlled.
It enables automatic power outages or re-energization of electrical equipment, reducing labor costs and improving the efficiency of intelligent power management in public areas.
Smart Images
Figure CN223771085U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of electric equipment, concretely relates to an overload disconnecting device of electric equipment. BACKGROUND
[0002] In recent years, fire disasters frequently occur in student dormitories, office areas and other concentrated areas, and people's lives and property suffer great losses. According to the fire department, the main reason is that people increase the use of high-power electrical appliances in public areas or use high-power electrical appliances, and the current power limiting device mainly adopts current limiting mode, the response speed is slow, and it cannot automatically cut off power supply and power supply, and relies on manual supervision of electrical equipment and restoration of power supply in management, resulting in increased labor costs, which restricts the improvement of intelligent power management cost in public areas.
[0003] In view of this, in order to solve the above technical problems, the utility model provides an overload disconnecting device of electric equipment which can realize automatic power-off or power supply of electrical equipment, and the device has simple and reasonable structure, which can effectively reduce labor cost. SUMMARY
[0004] The utility model provides an overload disconnecting device of electric equipment, which has simple and reasonable structure, can realize automatic power-off or power supply of electrical equipment, effectively reduces labor cost, and the specific scheme is as follows:
[0005] An overload disconnection device of an electrical appliance comprises an insulating shell, two parallel fixed plates are arranged in the insulating shell, one of the fixed plates is vertically provided with a mounting cylinder, a movable rod which can pass through the fixed plate is slidably arranged in the mounting cylinder, the other fixed plate is vertically provided with a fixed rod opposite to the movable rod, the movable rod and the fixed rod are respectively provided with conductive wires which can be in contact with each other, the end of the movable rod away from the fixed rod is provided with a limiting ring, a limiting groove is formed in the inner wall of the mounting cylinder, a first compression spring is arranged on the movable rod between the limiting ring and the fixed plate, an opening and closing assembly is connected to the limiting ring, the opening and closing assembly comprises a connecting rod which is vertically connected to the limiting ring, the end of the connecting rod is bent to form a protrusion which can be inserted into the limiting groove, the end of the protrusion is provided with a control frame which is parallel to the limiting ring, a reset cylinder is slidably arranged in the mounting cylinder, a power-off rod is slidably arranged in the reset cylinder, and the end of the power-off rod close to the control frame extends out of the reset cylinder, the end of the power-off rod in the control frame is inclined away from the protrusion, the power-off rod is provided with a hook which is hung on the control frame, a second compression spring is arranged between the power-off rod and the limiting ring, the conductive block is embedded in the inner wall of the mounting cylinder along the length direction of the mounting cylinder, the end of the wire in the movable rod is in sliding contact with the conductive block, the insulating shell is provided with an outlet terminal and an inlet terminal, the end of the wire in the fixed rod is connected to the inlet terminal, the conductive block is connected to the outlet terminal through the wire, the reset cylinder and the power-off rod are respectively connected or disconnected through electric telescopic rods, the electric telescopic rods are connected to a controller, and the controller is connected to a control system.
[0006] Further, the movable rod is provided with a mounting hole which is open at one end of the limiting ring, the mounting hole is fixed with an iron core, and the mounting hole is provided with an electromagnetic coil outside the iron core, the power-off rod close to the end of the connecting rod is provided with a magnet, the wire in the movable rod is composed of two wire units, and the two wire units are connected to two ends of the electromagnetic coil respectively.
[0007] Further, the fixed plate on the mounting cylinder is provided with an inner cavity, the inner cavities on the two sides of the movable rod are respectively provided with arc extinguishing plates, the two arc extinguishing plates are inclined on the side close to the first compression spring, and the third compression spring is arranged between the arc extinguishing plates and the inner cavity wall.
[0008] Further, the wire in the movable rod and the wire in the fixed rod are in concave-convex contact.
[0009] Further, the electric telescopic rods are two and are arranged on the outer side of the insulating shell, one output end of the electric telescopic rods passes through the side wall of the insulating shell and is connected to the reset cylinder, the end of the power-off rod away from the magnet is provided with an inverted L-shaped push rod, a long strip-shaped sliding groove which is suitable for the sliding of the inverted L-shaped push rod is formed in one side of the reset cylinder, and the end of the inverted L-shaped push rod is connected to the output end of the other electric telescopic rod.
[0010] The utility model discloses a beneficial effect is:
[0011] The utility model discloses an overload disconnecting device of electric appliance equipment, and the device can realize automatic power-off or power supply of the overload electric appliance through remote control, and the operation is simple and convenient, can effectively reduce the manpower cost, and effectively controls the intelligent power consumption management cost of public area, specifically, when one of the electric telescopic rods output end pushes the power-off rod, the inclined surface of the power-off rod moves forward, and the inclined part of the power-off rod can gradually suppress the control frame to move down, when the upper end of the protrusion is away from the inner wall of the mounting cylinder, the protrusion can be pushed to the one end of reset cylinder to realize the away of two conductive lines through the elastic force of the first compression spring, thereby realizing power-off, when the other electric telescopic rod output end resets the cylinder, the end of the reset cylinder moves forward and pushes the control frame to move, and the lower part of the control frame gradually moves along the inclined surface of the power-off rod, when the top of the protrusion is all located below the limiting groove, the protrusion can be popped into the limiting groove to realize the butt joint of two conductive lines through the elastic force of the first compression spring, thereby realizing contact power-on. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is the structure schematic diagram of the utility model.
[0013] Figure 2 It is the inside overhead schematic diagram of the utility model's insulation shell.
[0014] Figure 3 It is the front view cross section of the utility model.
[0015] Figure 4 It is the local schematic diagram of the utility model.
[0016] Figure 5 It is the arc extinguishing plate and third compression spring connection schematic diagram of the utility model.
[0017] Figure 6 It is the inside conductive line end schematic diagram of the utility model's movable rod and fixed rod.
[0018] Mark explanation: insulation shell 1, fixed plate 2, mounting cylinder 3, movable rod 4, fixed rod 5, conductive line 6, limiting ring 7, limiting groove 8, first compression spring 9, connecting rod 10, protrusion 11, control frame 12, reset cylinder 13, power-off rod 14, second compression spring 15, conductive block 16, iron core 17, electromagnetic coil 18, arc extinguishing plate 19, third compression spring 20, electric telescopic rod 21, inverted L type push rod 22. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0020] Refer to Figures 1-6 An overload disconnecting device for electrical equipment, comprising an insulating shell 1, wherein the insulating shell 1 is in a long strip shape, and a sealing cover plate is detachably connected to the insulating shell 1 by screws, two parallel fixed plates 2 are arranged in the insulating shell 1, and the two fixed plates 2 are detachably connected to the side walls of the insulating shell 1 by screws, a mounting cylinder 3 is vertically arranged on one of the fixed plates 2 and extends along the length direction of the insulating shell 1, a movable rod 4 is slidably arranged in the mounting cylinder 3 and can pass through the fixed plate 2, a fixed rod 5 is vertically arranged on the other fixed plate 2 and opposite to the movable rod 4, the fixed rod 5 is fixedly arranged on the fixed plate 2, conductive wires 6 are arranged in the movable rod 4 and the fixed plate 2 and can be in contact with each other, a limiting ring 7 is arranged at the end of the movable rod 4 away from the fixed rod 5, the outer diameter of the limiting ring 7 matches the inner diameter of the mounting cylinder 3, a limiting groove 8 is arranged on the inner wall of the mounting cylinder 3, the limiting groove 8 is a blind hole groove, a first compression spring 9 is arranged on the movable rod 4 between the limiting ring 7 and the fixed plate 2, an opening and closing assembly is connected to the limiting ring 7, the opening and closing assembly comprises a connecting rod 10 connected to the limiting ring 7, the end of the connecting rod 10 is bent to form a protrusion 11 which can be inserted into the limiting groove 8, a control frame 12 is arranged at the end of the protrusion 11 and parallel to the limiting ring 7, a reset cylinder 13 is slidably arranged in the mounting cylinder 3, the reset cylinder 13 is arranged on the other side of the mounting cylinder 3, a power-off rod 14 is slidably arranged in the reset cylinder 13 and extends out of the reset cylinder 13 at the end close to the control frame 12, the end of the power-off rod 14 is located in the control frame 12 and is inclined away from the protrusion 11, the power-off rod 14 is provided with a hook which is hung on the control frame 12, a second compression spring 15 is arranged between the power-off rod 14 and the limiting ring 7, a conductive block 16 is inlaid on the inner wall of the mounting cylinder 3 along the length direction of the mounting cylinder 3, the end of the conductive wire 6 in the movable rod 4 is in sliding contact with the conductive block 16, an outgoing terminal and an incoming terminal are arranged on the insulating shell 1, the end of the conductive wire 6 in the fixed rod 5 is connected to the incoming terminal, the conductive block 16 is connected to the outgoing terminal through the conductive wire 6, the reset cylinder 13 and the power-off rod 14 are connected or disconnected through an electric telescopic rod 21, the electric telescopic rod 21 is connected to a controller, and the controller is connected to a control system.
[0021] The movable rod 4 is provided with a mounting hole at one end of the limiting ring 7, the mounting hole is fixed with an iron core 17, the mounting hole is provided with an electromagnetic coil 18 outside the iron core 17, the power-off rod 14 close to one end of the connecting rod 10 is provided with a magnet, the wire 6 in the movable rod 4 is composed of two wire units, the two wire units are connected to two ends of the electromagnetic coil 18 respectively, when the load of the electric equipment is too large, the electromagnetic coil 18 forms a magnetic field to generate an attractive force on the magnet, so that the power-off rod 14 moves towards the movable rod 4, so that the inclined surface of the power-off rod 14 gradually presses the control frame 12 to make the top of the protrusion 11 connected with the control frame 12 away from the limiting groove 8, and then the control frame 12 is pushed to one end of the reset cylinder 13 by the elastic force of the first compression spring 9, the other end of the control frame 12 enters the mounting cylinder 3, and then the wire 6 in the movable rod 4 is away from the wire 6 in the fixed rod 5 to complete power-off.
[0022] The fixed plate 2 on the mounting cylinder 3 is provided with an inner cavity, the inner cavities on the two sides of the movable rod 4 are respectively provided with arc extinguishing plates 19, the two arc extinguishing plates 19 are inclined to the side close to the first compression spring 9, the third compression spring 20 is arranged between the two arc extinguishing plates 19 and the inner cavity wall, and an arc is generated in an instant when power-off occurs. When power-off occurs, the end of the movable rod 4 is pushed into the mounting cylinder 3 by the first compression spring 9, at this time, the two arc extinguishing plates 19 can relatively move by the third compression spring 20 arranged between the two arc extinguishing plates 19 and the inner cavity wall, so that the end of the mounting cylinder 3 is isolated to form a sealed state, and the arc extinguishing effect is achieved.
[0023] The wire 6 in the movable rod 4 and the wire 6 in the fixed rod 5 are in concave-convex matching contact, and the contact area of the two wires 6 is increased by this design, so that the current can pass more stably.
[0024] Preferably, the electric telescopic rods 21 are two and are arranged on the outer side of the insulating shell 1, one output end of the electric telescopic rod 21 penetrates through the side wall of the insulating shell 1 and is connected with the reset cylinder 13, the end, away from the magnet, of the power-off rod 14 is provided with a reverse L-shaped push rod 22, a long strip-shaped sliding groove suitable for sliding of the reverse L-shaped push rod 22 is arranged on one side of the reset cylinder 13, and one end of the reverse L-shaped push rod 22 is connected with the output end of the other electric telescopic rod 21.
[0025] The working principle of the utility model is as follows:
[0026] When the load of the electrical equipment is too high but not reaching the set value of the device, the management personnel needs to disconnect the power through the control system, the management personnel controls the electric telescopic rod 21 moving the disconnecting rod 14 to work, the output end drives the inverted L-shaped push rod 22 to move, the end of the inverted L-shaped push rod 22 pushes the disconnecting rod 14 to move forward, at this time the inclined surface of the disconnecting rod 14 gradually presses the control frame 12 downward to make the top of the protrusion 11 connected with the control frame 12 away from the limiting groove 8, and then the control frame 12 is pushed to one end of the reset cylinder 13 by the elastic force of the first compression spring 9, the other end enters the installation cylinder 3, at the same time the two arc extinguishing plates 19 move relatively under the action of the third compression spring 20 and isolate the port of the installation cylinder 3 to form a sealed state, and then the wires 6 in the movable rod 4 are away from the wires 6 in the fixed rod 5 to complete the power-off;
[0027] When the management personnel needs to power on the electrical equipment, the electric telescopic rod 21 moving the reset cylinder 13 can be controlled by the controller to work, the output end pushes the reset cylinder 13 to move forward, wherein the end of the reset cylinder 13 pushes the control frame 12 to move towards the movable rod 4, at this time the protrusion 11 connected with the control frame 12 moves under the pushing of the electric telescopic rod 21, at this time the control frame 12 moves along the inclined surface of the disconnecting rod 14 and gradually moves upward, when the top of the protrusion 11 is located below the limiting groove 8, the protrusion 11 can be popped into the limiting groove 8 by the elastic force of the first compression spring 9 to realize the butt joint between the two wires 6, and then the contact power-on is realized.
[0028] When the load of the electrical equipment exceeds the set value of the device, the electromagnetic coil 18 forms a magnetic field to generate an attractive force on the magnet, at this time the disconnecting rod 14 can be moved towards the movable rod 4, so that the inclined surface of the disconnecting rod 14 gradually presses the control frame 12 downward to make the top of the protrusion 11 connected with the control frame 12 away from the limiting groove 8, and then the control frame 12 is pushed to one end of the reset cylinder 13 by the elastic force of the first compression spring 9, the other end enters the installation cylinder 3, at the same time the two arc extinguishing plates 19 move relatively under the action of the third compression spring 20 and isolate the port of the installation cylinder 3 to form a sealed state, and then the wires 6 in the movable rod 4 are away from the wires 6 in the fixed rod 5 to complete the power-off.
[0029] It is apparent to those skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments, and that the application can be implemented in other specific forms without departing from the spirit or essential characteristics of the application. Therefore, the embodiments should be considered exemplary and should not be treated as limiting the scope of the application, which is defined by the claims appended hereto rather than by the foregoing description, and all changes that fall within the meaning and range of equivalency of the claims are intended to be embraced therein, and no feature of the application should be deemed to be critical, essential or indispensable to the practice of the application.
[0030] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.
Claims
1. An overload trip device for an electrical appliance, characterized by: The utility model provides an electric switch, including insulating shell (1), two phase parallel fixed plate (2) are equipped in the insulating shell (1), one fixed plate (2) is vertically equipped with installation cylinder (3) on, the movable rod (4) of slidingly equipped with can pass through fixed plate (2) is equipped in installation cylinder (3), the other fixed plate (2) is vertically fixedly equipped with fixed rod (5) with movable rod (4) opposite, movable rod (4) and fixed plate (2) are equipped with wire (6) can be contacted conductive respectively, the end of movable rod (4) away from fixed rod (5) is equipped with limit ring (7), the inner wall of installation cylinder (3) is opened and is equipped with limit groove (8), the movable rod (4) between limit ring (7) and fixed plate (2) is equipped with first compression spring (9) on the sleeve, limit ring (7) is connected with open-close subassembly, open-close subassembly includes the connecting rod (10) perpendicularly connected with limit ring (7), the end of connecting rod (10) is bent and forms the protruding (11) of being inserted into limit groove (8), the protruding (11) end is equipped with control frame (12) with limit ring (7) parallel, installation cylinder (3) is also equipped with reset cylinder (13) slidingly, the reset cylinder (13) is equipped with power-off rod (14) slidingly, and power-off rod (14) is close to the end of control frame (12) and stretches out outside reset cylinder (13), the one end of power-off rod (14) is located in control frame (12) and is inclined away from protruding (11) side, power-off rod (14) is equipped with the hook of hanging on control frame (12), the second compression spring (15) is equipped between power-off rod (14) and limit ring (7), the inner wall of installation cylinder (3) is embedded with conductive block (16) along its length direction, the end of wire (6) in movable rod (4) and conductive block (16) sliding contact, the insulating shell (1) is equipped with the wire terminal and incoming wire terminal, the one end of wire (6) in fixed rod (5) is connected with incoming wire terminal, the conductive block (16) is connected with wire terminal through wire (6), reset cylinder (13) and power-off rod (14) are respectively connected with electric telescopic rod (21) and are electrified or disconnected, electric telescopic rod (21) is connected with controller, the controller is connected with control system.
2. An overload trip device for an electrical appliance according to claim 1, wherein: The utility model provides an electric switch, including insulating shell (1), two phase parallel fixed plate (2) are equipped in the insulating shell (1), one fixed plate (2) is vertically equipped with installation cylinder (3) on, the movable rod (4) of slidingly equipped with can pass through fixed plate (2) is equipped in installation cylinder (3), the other fixed plate (2) is vertically fixedly equipped with fixed rod (5) with movable rod (4) opposite, movable rod (4) and fixed plate (2) are equipped with wire (6) can be contacted conductive respectively, the end of movable rod (4) away from fixed rod (5) is equipped with limit ring (7), the inner wall of installation cylinder (3) is opened and is equipped with limit groove (8), the movable rod (4) between limit ring (7) and fixed plate (2) is equipped with first compression spring (9) on the sleeve, limit ring (7) is connected with open-close subassembly, open-close subassembly includes the connecting rod (10) perpendicularly connected with limit ring (7), the end of connecting rod (10) is bent and forms the protruding (11) of being inserted into limit groove (8), the protruding (11) end is equipped with control frame (12) with limit ring (7) parallel, installation cylinder (3) is also equipped with reset cylinder (13) slidingly, the reset cylinder (13) is equipped with power-off rod (14) slidingly, and power-off rod (14) is close to the end of control frame (12) and stretches out outside reset cylinder (13), the one end of power-off rod (14) is located in control frame (12) and is inclined away from protruding (11) side, power-off rod (14) is equipped with the hook of hanging on control frame (12), the second compression spring (15) is equipped between power-off rod (14) and limit ring (7), the inner wall of installation cylinder (3) is embedded with conductive block (16) along its length direction, the end of wire (6) in movable rod (4) and conductive block (16) sliding contact, the insulating shell (1) is equipped with the wire terminal and incoming wire terminal, the one end of wire (6) in fixed rod (5) is connected with incoming wire terminal, the conductive block (16) is connected with wire terminal through wire (6), reset cylinder (13) and power-off rod (14) are respectively connected with electric telescopic rod (21) and are electrified or disconnected, electric telescopic rod (21) is connected with controller, the controller is connected with control system.
3. An overload trip device for an electrical appliance as defined in claim 1, wherein: The utility model provides an electric switch, including insulating shell (1), two phase parallel fixed plate (2) are equipped in the insulating shell (1), one fixed plate (2) is vertically equipped with installation cylinder (3) on, the movable rod (4) of slidingly equipped with can pass through fixed plate (2) is equipped in installation cylinder (3), the other fixed plate (2) is vertically fixedly equipped with fixed rod (5) with movable rod (4) opposite, movable rod (4) and fixed plate (2) are equipped with wire (6) can be contacted conductive respectively, the end of movable rod (4) away from fixed rod (5) is equipped with limit ring (7), the inner wall of installation cylinder (3) is opened and is equipped with limit groove (8), the movable rod (4) between limit ring (7) and fixed plate (2) is equipped with first compression spring (9) on the sleeve, limit ring (7) is connected with open-close subassembly, open-close subassembly includes the connecting rod (10) perpendicularly connected with limit ring (7), the end of connecting rod (10) is bent and forms the protruding (11) of being inserted into limit groove (8), the protruding (11) end is equipped with control frame (12) with limit ring (7) parallel, installation cylinder (3) is also equipped with reset cylinder (13) slidingly, the reset cylinder (13) is equipped with power-off rod (14) slidingly, and power-off rod (14) is close to the end of control frame (12) and stretches out outside reset cylinder (13), the one end of power-off rod (14) is located in control frame (12) and is inclined away from protruding (11) side, power-off rod (14) is equipped with the hook of hanging on control frame (12), the second compression spring (15) is equipped between power-off rod (14) and limit ring (7), the inner wall of installation cylinder (3) is embedded with conductive block (16) along its length direction, the end of wire (6) in movable rod (4) and conductive block (16) sliding contact, the insulating shell (1) is equipped with the wire terminal and incoming wire terminal, the one end of wire (6) in fixed rod (5) is connected with incoming wire terminal, the conductive block (16) is connected with wire terminal through wire (6), reset cylinder (13) and power-off rod (14) are respectively connected with electric telescopic rod (21) and are electrified or disconnected, electric telescopic rod (21) is connected with controller, the controller is connected with control system.
4. An overload trip device for an electrical appliance as defined in claim 1, wherein: 5. An overload trip device for an electrical appliance as defined in claim 1, wherein: Said electric telescopic rod (21) is two and respectively sets up on the outside of the insulating shell (1), wherein an electric telescopic rod (21) output end passes through the side wall of the insulating shell (1) and is connected with the reset cylinder (13), the power-off rod (14) is provided with the inverted L type push rod (22) away from the magnet one end, the reset cylinder (13) one side is provided with the long strip shaped sliding slot suitable for the inverted L type push rod (22) sliding, the inverted L type push rod (22) one end is connected with the output end of the other electric telescopic rod (21).