A short-circuit prevention power-off device

Abstract

The utility model discloses a kind of short-circuit prevention power-off devices, including socket main body, the side fixedly connected with protective box of socket main body, the inner bottom of protective box is fixedly connected with fixed base, the upper surface of fixed base is fixedly connected with two third conductors, the inner bottom of socket main body is fixedly connected with two contact pieces.The utility model, by setting stop plate, moving plate, elastic conductive sheet, second fixed rod, iron sliding block, moving column, clamping block, second spring etc., iron sliding block is driven clamping block to move by moving column, and compresses second spring, then under the elastic release of first spring, push press column is moved upwards, so that two stop plates are on the inner top of protective box, push press column is driven elastic conductive sheet to separate first electricity block and second electricity block by moving plate, circuit can be quickly cut off, reduce the line overheat or fire risk caused by power-off delay when short circuit.

Description

Technical Field

[0001] This utility model relates to the field of short-circuit protection and power interruption technology, and in particular to a short-circuit protection and power interruption device. Background Technology

[0002] A socket is an electrical device used to connect appliances to a power source. It enables power transmission and equipment supply by providing a circuit wiring interface and is a commonly used accessory in residential and commercial electrical design.

[0003] However, some sockets in existing equipment lack short-circuit protection devices. If a short circuit occurs and the power is not cut off in time, it may cause the circuit to burn out or even cause a fire. Therefore, a short-circuit protection device is proposed. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a short-circuit protection and power-off device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a short-circuit protection and power-off device, comprising a socket body, a protective box fixedly connected to one side of the socket body, a fixed base fixedly connected to the inner bottom of the protective box, two third wires fixedly connected to the upper surface of the fixed base, two contact pieces fixedly connected to the inner bottom of the socket body, one of the contact pieces being electrically connected to a first wire, one end of the first wire being electrically connected to a conductive coil, one side of the conductive coil being fixedly connected to the inner side of the protective box, the other end of the conductive coil being electrically connected to a second wire, the other end of the second wire being electrically connected to a corresponding third wire, and the protective box being provided with a power-off structure;

[0006] The power-off structure includes a first fixing rod fixedly connected to the bottom of the protective box. A pressing post is slidably connected to the first fixing rod. The pressing post is slidably connected to the upper surface of the protective box. A snap-fit ​​groove is opened on one side of the pressing post. The pressing post is snapped into the snap-fit ​​groove by a snap-fit ​​block to position it.

[0007] As a further description of the above technical solution:

[0008] A first spring is fitted on the first fixing rod. One end of the first spring is fixedly connected to the bottom of the inner part of the protective box, and the other end is fixedly connected to the bottom of the pressing column. The pressing column is pushed upward by the elastic reset of the first spring.

[0009] As a further description of the above technical solution:

[0010] Limiting plates are fixedly connected to the opposite sides of the pressing column, and a movable plate is fixedly connected to one side of the pressing column. An elastic conductive sheet is fixedly connected to the bottom of the movable plate. The limiting plates limit the pressing column.

[0011] As a further description of the above technical solution:

[0012] A second fixing rod is fixedly connected to one side of the inside of the protective box. The second fixing rod is located in the middle of the conductive coil. An iron slider is slidably connected to the second fixing rod. A movable column is fixedly connected to one side of the iron slider. A snap-fit ​​block is fixedly connected to one side of the movable column. The snap-fit ​​block is adapted to the snap-fit ​​groove. When the current of the conductive coil increases suddenly and generates a strong magnetic field, it drives the iron slider to move towards the second fixing rod. The iron slider drives the snap-fit ​​block to move through the movable column, so that the snap-fit ​​block disengages from the snap-fit ​​groove.

[0013] As a further description of the above technical solution:

[0014] A second spring is fitted on the second fixing rod. One end of the second spring is fixedly connected to the inside side of the protective box, and the other end is fixedly connected to one side of the iron slider. After the power is cut off, the magnetic field disappears, and the iron slider is pushed to reset under the elasticity of the second spring.

[0015] As a further description of the above technical solution:

[0016] Another contact piece is electrically connected to a fourth wire on one side. One end of the fourth wire passes through one side of the protective box and is electrically connected to a first contact block. A first support post is fixedly connected to the bottom of the first contact block. The bottom of the first support post is fixedly connected to the inner bottom of the protective box. A second support post is fixedly connected to the inner bottom of the protective box. A second contact block is fixedly connected to the upper surface of the second support post. One side of the second contact block is electrically connected to a corresponding third wire. The first contact block and the second contact block are separated, thus breaking the circuit.

[0017] As a further description of the above technical solution:

[0018] The upper surfaces of the second and first electrical blocks are together attached to the bottom of the elastic conductive sheet, and the elastic conductive sheet connects the second and first electrical blocks to form a circuit path.

[0019] This utility model has the following beneficial effects:

[0020] Compared with existing technologies, this short-circuit protection and power-off device, through the arrangement of a first fixed rod, a pressing column, a snap-fit ​​groove, a first spring, a limiting plate, a moving plate, an elastic conductive sheet, a second fixed rod, an iron slider, a moving column, a snap-fit ​​block, and a second spring, generates a strong magnetic field due to the sudden increase in current in the conductive coil when a short circuit occurs. This magnetic field drives the iron slider to move towards the second fixed rod. The iron slider, through the moving column, moves the snap-fit ​​block and compresses the second spring. Then, under the elastic release of the first spring, it pushes the pressing column upward, causing the two limiting plates to press against the inner top of the protective box. The pressing column, through the moving plate, causes the elastic conductive sheet to disengage from the first and second contact blocks, which can quickly cut off the circuit and reduce the risk of overheating or fire caused by delayed power-off during a short circuit. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a short-circuit protection and power-off device proposed in this utility model;

[0022] Figure 2 This is a cross-sectional view of a short-circuit protection and power-off device proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the power-off structure of a short-circuit protection power-off device proposed in this utility model;

[0024] Figure 4 This is an exploded view of the power-off structure of a short-circuit protection power-off device proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of the first and second connecting blocks of a short-circuit protection and power-off device proposed in this utility model.

[0026] Legend:

[0027] 1. Socket body; 2. Protective box; 3. Contact piece; 4. First conductor; 5. Conductive coil; 6. Second conductor; 7. Power-off structure; 701. First fixing rod; 702. Pressing post; 703. Snap-fit ​​groove; 704. First spring; 705. Limiting plate; 706. Moving plate; 707. Elastic conductive sheet; 708. Second fixing rod; 709. Iron slider; 7010. Moving post;

[0028] 7011, Connecting block; 7012, Second spring; 8, Fourth wire; 9, First electrical connector;

[0029] 10. First support column; 11. Second support column; 12. Second junction block; 13. Fixing base; 14. Third conductor. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1 to 5 This utility model provides a short-circuit protection and power-off device, comprising a socket body 1, a protective box 2 fixedly connected to one side of the socket body 1, a fixing base 13 fixedly connected to the inner bottom of the protective box 2, two third wires 14 fixedly connected to the upper surface of the fixing base 13, two contact pieces 3 fixedly connected to the inner bottom of the socket body 1, one side of one of the contact pieces 3 electrically connected to a first wire 4, one end of the first wire 4 electrically connected to a conductive coil 5, which generates a strong magnetic field by causing current overload in the conductive coil 5 when a short circuit occurs. One side of the conductive coil 5 is fixedly connected to the inner side of the protective box 2, and the other end of the conductive coil 5 is electrically connected to a second wire 6, the other end of the second wire 6 being connected to a corresponding... The third conductor 14 is electrically connected, and a fourth conductor 8 is electrically connected to one side of another contact piece 3. One end of the fourth conductor 8 passes through one side of the protective box 2 and is electrically connected to a first contact block 9. A first support column 10 is fixedly connected to the bottom of the first contact block 9. The bottom of the first support column 10 is fixedly connected to the inner bottom of the protective box 2. A second support column 11 is fixedly connected to the inner bottom of the protective box 2. A second contact block 12 is fixedly connected to the upper surface of the second support column 11. One side of the second contact block 12 is electrically connected to the corresponding third conductor 14. The upper surfaces of the second contact block 12 and the first contact block 9 are together attached to the bottom of the elastic conductive sheet 707. The protective box 2 is provided with a power-off structure 7.

[0032] To achieve power cut-off, the power cut-off structure 7 includes a first fixing rod 701 fixedly connected to the bottom of the inner wall of the protective box 2. A pressing post 702 is slidably connected to the first fixing rod 701. A first spring 704 is sleeved on the first fixing rod 701. One end of the first spring 704 is fixedly connected to the bottom of the inner wall of the protective box 2, and the other end is fixedly connected to the bottom of the pressing post 702. The pressing post 702 is slidably connected to the upper surface of the protective box 2. A snap-fit ​​groove 703 is provided on one side of the pressing post 702. Limiting plates 705 are fixedly connected to the opposite sides of the pressing post 702. A movable plate 706 is fixedly connected to one side of the pressing post 702. An elastic conductive sheet 707 is fixedly connected to the bottom of the movable plate 706. A second fixing rod 708 is fixedly connected to one side of the inner wall of the protective box 2. The second fixing rod 708 is located in the middle of the conductive coil 5. An iron slider 709 is slidably connected to the second fixing rod 708. A second spring 7012 is provided. One end of the second spring 7012 is fixedly connected to one side of the interior of the protective box 2, and the other end is fixedly connected to one side of the iron slider 709. A movable column 7010 is fixedly connected to one side of the iron slider 709, and a locking block 7011 is fixedly connected to one side of the movable column 7010. The locking block 7011 is adapted to the locking groove 703. When a short circuit occurs, a strong magnetic field is generated due to the sudden increase in current of the conductive coil 5, which drives the iron slider 709 towards the second fixed rod 708. The sliding block 709 moves in a direction, and the moving column 7010 drives the locking block 7011 to move, compressing the second spring 7012. Then, under the elastic release of the first spring 704, it pushes the pressing column 702 to move upward, so that the two limiting plates 705 press against the inner top of the protective box 2. The pressing column 702 drives the elastic conductive sheet 707 to disengage from the first contact block 9 and the second contact block 12 through the moving plate 706, which can quickly cut off the circuit and reduce the risk of overheating or fire caused by power failure delay during short circuit.

[0033] Working principle: When a short circuit occurs, a strong magnetic field is generated due to the sudden increase in current in the conductive coil 5, which drives the iron slider 709 to move towards the second fixed rod 708. The iron slider 709 drives the locking block 7011 to move through the moving column 7010 and compresses the second spring 7012. Then, under the elastic release of the first spring 704, it pushes the pressing column 702 to move upward, so that the two limiting plates 705 press against the inner top of the protective box 2. The pressing column 702 drives the elastic conductive sheet 707 to disengage from the first contact block 9 and the second contact block 12 through the moving plate 706, which can quickly cut off the circuit and reduce the risk of overheating or fire caused by the delay in power-off during a short circuit.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A short-circuit protection and power-off device, comprising a socket body (1), characterized in that: A protective box (2) is fixedly connected to one side of the socket body (1). A fixing seat (13) is fixedly connected to the bottom of the inner side of the protective box (2). Two third wires (14) are fixedly connected to the upper surface of the fixing seat (13). Two contact pieces (3) are fixedly connected to the bottom of the inner side of the socket body (1). One side of one of the contact pieces (3) is electrically connected to a first wire (4). One end of the first wire (4) is electrically connected to a conductive coil (5). One side of the conductive coil (5) is fixedly connected to the inner side of the protective box (2). The other end of the conductive coil (5) is electrically connected to a second wire (6). The other end of the second wire (6) is electrically connected to the corresponding third wire (14). A power-off structure (7) is provided on the protective box (2). The power-off structure (7) includes a first fixing rod (701) fixedly connected to the bottom of the protective box (2). A pressing post (702) is slidably connected to the first fixing rod (701). The pressing post (702) is slidably connected to the upper surface of the protective box (2). A snap-fit ​​groove (703) is provided on one side of the pressing post (702).

2. The short-circuit protection and power-off device according to claim 1, characterized in that: A first spring (704) is fitted on the first fixing rod (701). One end of the first spring (704) is fixedly connected to the inner bottom of the protective box (2), and the other end is fixedly connected to the bottom of the pressing column (702).

3. The short-circuit protection and power-off device according to claim 1, characterized in that: Limiting plates (705) are fixedly connected to the opposite side of the pressing column (702), and a movable plate (706) is fixedly connected to one side of the pressing column (702). An elastic conductive sheet (707) is fixedly connected to the bottom of the movable plate (706).

4. The short-circuit protection and power-off device according to claim 1, characterized in that: A second fixing rod (708) is fixedly connected to one side of the interior of the protective box (2). The second fixing rod (708) is located in the middle of the conductive coil (5). An iron slider (709) is slidably connected to the second fixing rod (708). A movable column (7010) is fixedly connected to one side of the iron slider (709). A snap-fit ​​block (7011) is fixedly connected to one side of the movable column (7010). The snap-fit ​​block (7011) is adapted to the snap-fit ​​groove (703).

5. A short-circuit protection and power-off device according to claim 4, characterized in that: A second spring (7012) is fitted on the second fixing rod (708). One end of the second spring (7012) is fixedly connected to one side of the inside of the protective box (2), and the other end is fixedly connected to one side of the iron slider (709).

6. A short-circuit protection and power-off device according to claim 3, characterized in that: Another contact piece (3) is electrically connected to a fourth wire (8) on one side. One end of the fourth wire (8) passes through one side of the protective box (2) and is electrically connected to a first contact block (9). A first support column (10) is fixedly connected to the bottom of the first contact block (9). The bottom of the first support column (10) is fixedly connected to the inner bottom of the protective box (2). A second support column (11) is fixedly connected to the inner bottom of the protective box (2). A second contact block (12) is fixedly connected to the upper surface of the second support column (11). One side of the second contact block (12) is electrically connected to the corresponding third wire (14).

7. A short-circuit protection and power-off device according to claim 6, characterized in that: The upper surfaces of the second contact block (12) and the first contact block (9) are together attached to the bottom of the elastic conductive sheet (707).

Images