Anti-electric shock safety charger

Abstract

The utility model belongs to the technical field of chargers, and discloses an anti-electric shock safety charger, which comprises a charger main body and a connecting wire, the charger main body comprises a plastic shell and an electronic circuit structure of a voltage conversion circuit and a rectifier bridge which are arranged in the plastic shell, and two groups of conducting strips are arranged at one end of the charger main body. One end of the charger body is provided with two groups of conducting strips and is connected with the mains supply through the two groups of conducting strips, the other end of the charger is provided with a connecting wire and is electrically connected with an electronic product through the connecting wire, the conducting strips are provided with insulation protection devices, and the joints of the connecting wire and the charger body are provided with anti-loosening structures; the anti-loosening structure can prevent the connecting wire from being separated from the charger and being exposed out of the output port, further prevents children from touching the output end of the power supply by mistake, is compact and reasonable in structural design, can prevent the children from touching the output end by mistake, and is high in safety and convenient to use, and electric shock caused by contact with the conducting strip can be prevented, and the children can be prevented from touching the output end by mistake.

Description

Technical Field

[0001] This utility model relates to the field of charger technology, specifically to a safety charger that prevents electric shock. Background Technology

[0002] A charger is a device used to charge batteries or electronic devices. It provides power to the battery by converting alternating current (AC) from the mains grid into direct current (DC). There are many types of chargers, including mobile phone chargers, laptop chargers, wireless chargers, and solar chargers. Different chargers have different output voltages and currents to suit the needs of different devices.

[0003] Common chargers typically convert 220V AC mains power into lower voltage DC power to charge electronic devices such as mobile phones, tablets, and laptops. While this process is safe under normal circumstances, accidentally touching the conductive contacts while using the charger could result in direct contact between the human body and the 220V AC mains power. The human body has a relatively low voltage tolerance, around 36V; exceeding this voltage can be life-threatening.

[0004] Electric shock not only poses a direct threat to life but can also lead to serious consequences such as cardiac arrest and burns. Injuries from electric shock accidents often require prolonged medical treatment and may even result in permanent damage, causing immense suffering and economic loss to families and society. More concerning is that some children, due to their active and energetic nature, often lack sufficient awareness of the potential dangers in their surroundings. While playing, they may come into contact with the conductive parts of chargers out of curiosity or unintentionally, leading to electric shock accidents. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a safety charger that prevents electric shock, thus solving the problems mentioned in the background art such as accidental contact with the conductive sheet during charging and electric shock to children from contact with the charger.

[0007] (II) Technical Solution

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a safety charger against electric shock, comprising a charger body and a connecting wire. The charger body includes a plastic shell and an internal electronic circuit structure consisting of a voltage conversion circuit and a rectifier bridge. One end of the charger body is provided with two sets of conductive plates, which are connected to the mains power supply. The other end of the charger is provided with a connecting wire, which is electrically connected to an electronic product. An insulation protection device is installed on the conductive plates. An anti-loosening structure is provided at the connection between the connecting wire and the charger body. A turntable and a locking block corresponding to the insulation protection device and the anti-loosening structure are provided on one side of the plastic shell.

[0009] Preferably, the plastic shell has a locking sliding hole at the corresponding connecting line, a locking rod hole at the bottom of the locking sliding hole, a first sliding groove on one side of the locking sliding hole, a turntable groove at the corresponding turntable on the plastic shell, a rotating shaft hole at the bottom of the turntable groove, two sets of conductive sheet clearance holes at the corresponding conductive sheet on the plastic shell, and two sets of second sliding grooves at the corresponding conductive sheet clearance holes inside the plastic shell.

[0010] Preferably, the insulation protection device includes two sets of protective sleeves, a structural block, a rack, a gear, a rotating shaft, and a turntable. The two sets of protective sleeves are respectively fitted onto two sets of conductive sheets. The protective sleeves and conductive sheets are slidably engaged in the second sliding groove, with one end extending through the conductive sheet clearance hole. A structural block is connected between the two sets of protective sleeves. A rack is fixedly connected to the side of the structural block away from the conductive sheet clearance hole. The rack meshes with the gear. One end of the gear is coaxially connected to the rotating shaft. The other end of the rotating shaft is coaxially connected to the turntable. The rotating shaft is inserted into the rotating shaft hole, and the turntable is placed in the turntable groove.

[0011] Preferably, the connecting line is provided with a connector, and a locking groove is provided on one side of the connector. The connector is inserted into the connecting hole on the plastic shell. A movable locking device is installed on the plastic shell, and the connector is locked to the plastic shell through the locking device.

[0012] Preferably, the locking device includes a locking rod, a locking block, and a slider. The locking block is slidably engaged in the locking slide hole. A slider is provided on one side of the locking block. The slider is slidably engaged with the first slide groove. A locking rod is welded to the center of the locking block. The locking rod passes through the locking rod hole and abuts against the locking groove.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a safe charger that prevents electric shock, which has the following advantages:

[0015] 1. This electric shock-proof safety charger is equipped with a protective cover and a locking device to prevent electric shock from contacting the conductive parts and to prevent children from accidentally touching the 20V output current. It is highly safe and easy to use.

[0016] 2. It is equipped with a protective cover that covers and wraps around the conductive sheet. The cover is retractable and does not affect the connection between the conductive sheet and the mains power. The protective cover can prevent accidental contact with the conductive sheet from causing electric shock, thus ensuring a high level of safety.

[0017] 3. Equipped with a locking device, which, together with the outer casing and connecting wire connector, can lock the connector onto the charger, preventing children from touching or accidentally touching it and causing electric shock, and preventing the connector from falling off, ensuring high safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the charger housing structure of this utility model;

[0020] Figure 3 This is a cross-sectional view of the charger casing of this utility model;

[0021] Figure 4 This is a schematic diagram of the insulation protection device of this utility model;

[0022] Figure 5 This is a schematic diagram of the insulation protection device and its housing of the present invention;

[0023] Figure 6 This is a schematic diagram of the connecting wire of this utility model;

[0024] Figure 7 This is a schematic diagram of the locking device and connecting wires of this utility model.

[0025] In the diagram: 1. Plastic outer shell; 2. Conductive sheet; 3. Connecting wire; 4. Locking slide hole; 5. Locking rod hole; 6. First slide groove; 7. Turntable groove; 8. Rotating shaft hole; 9. Conductive sheet clearance hole; 10. Second slide groove; 11. Protective sleeve; 12. Structural block; 13. Rack; 14. Gear; 15. Rotating shaft; 16. Turntable; 17. Connector; 18. Locking groove; 19. Locking device; 20. Locking rod; 21. Locking block; 22. Slider. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-7 This utility model provides a technical solution:

[0028] An electric shock-proof safety charger includes a charger body and a connecting wire. The charger body includes a plastic shell 1 and an internal electronic circuit structure consisting of a voltage conversion circuit and a rectifier bridge. One end of the charger body is provided with two sets of conductive plates 2, which are connected to the mains power through the two sets of conductive plates 2. The other end of the charger is provided with a connecting wire 3, which is electrically connected to an electronic product through the connecting wire 3. An insulation protection device is installed on the conductive plates 2. An anti-loosening structure is provided at the connection between the connecting wire 3 and the charger body. One side of the plastic shell 1 is provided with a turntable 16 and a locking block 21 corresponding to the insulation protection device and the anti-loosening structure.

[0029] Furthermore, a locking sliding hole 4 is provided on the plastic shell 1 corresponding to the connecting line 3, a locking rod hole 5 is provided at the bottom of the locking sliding hole 4, a first sliding groove 6 is provided on one side of the locking sliding hole 4, a turntable groove 7 is provided on the plastic shell 1 corresponding to the turntable 16, a rotating shaft hole 8 is provided at the bottom of the turntable groove 7, two sets of conductive sheet clearance holes 9 are provided on the plastic shell 1 corresponding to the conductive sheet clearance holes 9, and two sets of second sliding grooves 10 are provided inside the plastic shell 1 corresponding to the conductive sheet clearance holes 9. The plastic shell 1 can be assembled from two sets of structures. The internal voltage conversion device will release some heat during use, so the plastic shell 1 should be made of high-temperature resistant plastic.

[0030] Furthermore, the insulation protection device includes two sets of protective sleeves 11, structural blocks 12, racks 13, gears 14, rotating shafts 15, and turntables 16. The two sets of protective sleeves 11 are respectively fitted onto two sets of conductive sheets 2. The protective sleeves 11 and conductive sheets 2 are slidably engaged in the second sliding groove 10 and one end extends through the conductive sheet clearance hole 9. The structural block 12 is connected between the two sets of protective sleeves 11. The rack 13 is fixedly connected to the side of the structural block 12 away from the conductive sheet clearance hole 9. The rack 13 is meshed with the gear 14. One end of the gear 14 is coaxially connected to the rotating shaft 15. The other end of the rotating shaft 15 is coaxially connected to the turntable 16. The rotating shaft 15 is inserted into the rotating shaft hole 8, and the turntable 16 is placed in the turntable groove 7. Rotating the turntable 16 drives the gear 14 to rotate, which, in conjunction with the rack 13, allows the structural block 12 to move back and forth, thus extending the two sets of protective sleeves 11 from the charger. The two sets of protective sleeves 11 wrap around the conductive sheet 2, preventing accidental contact with the conductive sheet 2 and thus preventing electric shock. After the two sets of conductive sheets 2 are connected to the mains power, the two sets of protective sleeves 11 should be adjusted to extend as much as possible, so that only a small part of the ends of the two sets of conductive sheets 2 are exposed and connected to the socket. This ensures that when the connection is loose enough to touch the conductive sheet 2, the circuit has already been broken, preventing accidental contact with the conductive sheet 2 and thus preventing electric shock.

[0031] Furthermore, the connecting wire 3 is equipped with a connector 17, and a locking groove 18 is provided on one side of the connector 17. The connector 17 is inserted into the connecting hole on the plastic shell 1. A movable locking device 19 is installed on the plastic shell 1, and the connector 17 is locked to the plastic shell 1 through the locking device 19. The voltage at one end of the connector 17 is generally up to 20 volts. Accidental electric shock to 20 volts can cause a certain degree of pain. Locking it can prevent children from touching or accidentally touching it.

[0032] Furthermore, the locking device 19 includes a locking rod 20, a locking block 21, and a slider 22. The locking block 21 is slidably engaged in the locking slide hole 4. A slider 22 is provided on one side of the locking block 21, and the slider 22 is slidably engaged with the first slide groove 6. The locking rod 20 is welded to the center of the locking block 21, and the locking rod 20 passes through the locking rod hole 5 and abuts against the locking groove 18. An opening is provided on one side of the locking groove 18. When the connector 17 is inserted, the locking block 21 is moved to align the locking rod 20 with the opening of the locking groove 18. After the connector 17 is inserted, the locking block 21 is moved to move the locking rod 20 to the open end of the locking groove 18, thus completing the locking. This prevents the connector 17 from disengaging and prevents children from accidentally touching it.

[0033] Working principle: When using this device for charging, connect the connecting wire 3 to the charger body, and move the locking block 21 to lock it to prevent the connecting wire 3 from coming off, thus preventing children from accidentally touching it and getting an electric shock. The two sets of conductive plates 2 are connected to the mains power and plugged into the socket. After plugging them in, rotate the turntable 16 to make the two sets of protective sleeves 11 extend and wrap around the conductive plates 2. Adjust them as much as possible so that the ends of the conductive plates 2 are exposed and connected to the socket. Wrapping the two sets of conductive plates 2 can prevent accidental contact with the conductive plates 2 and electric shock.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety charger against electric shock, comprising a charger body and a connecting cable, wherein the charger body includes a plastic shell (1) and an internal electronic circuit structure consisting of a voltage conversion circuit and a rectifier bridge, and one end of the charger body is provided with two sets of conductive plates (2), and is connected to the mains power through the two sets of conductive plates (2), characterized in that: The other end of the charger is provided with a connecting wire (3), and is electrically connected to the electronic product through the connecting wire (3). An insulation protection device is installed on the conductive sheet (2). An anti-loosening structure is provided at the connection between the connecting wire (3) and the charger body. A turntable (16) and a locking block (21) corresponding to the insulation protection device and the anti-loosening structure are provided on one side of the plastic shell (1).

2. The electric shock-proof safety charger according to claim 1, characterized in that: The plastic shell (1) has a locking slide hole (4) at the corresponding connection line (3), a locking rod hole (5) at the bottom of the locking slide hole (4), a first slide groove (6) on one side of the locking slide hole (4), a turntable groove (7) at the corresponding turntable (16) on the plastic shell (1), a rotating shaft hole (8) at the bottom of the turntable groove (7), two sets of conductive sheet clearance holes (9) at the corresponding conductive sheet (2) on the plastic shell (1), and two sets of second slide grooves (10) at the corresponding conductive sheet clearance holes (9) inside the plastic shell (1).

3. A safety charger against electric shock according to claim 2, characterized in that: The insulation protection device includes two sets of protective sleeves (11), a structural block (12), a rack (13), a gear (14), a rotating shaft (15), and a turntable (16). The two sets of protective sleeves (11) are respectively fitted onto two sets of conductive sheets (2). The protective sleeves (11) and the conductive sheets (2) are slidably engaged in the second sliding groove (10) and one end extends through the conductive sheet clearance hole (9). The structural block (12) is connected between the two sets of protective sleeves (11). The rack (13) is fixedly connected to the side of the structural block (12) away from the conductive sheet clearance hole (9). The rack (13) is meshed with the gear (14). One end of the gear (14) is coaxially connected to the rotating shaft (15). The other end of the rotating shaft (15) is coaxially connected to the turntable (16). The rotating shaft (15) is inserted into the rotating shaft hole (8), and the turntable (16) is placed in the turntable groove (7).

4. A safety charger against electric shock according to claim 2, characterized in that: The connecting line (3) is provided with a connector (17), and a locking groove (18) is provided on one side of the connector (17). The connector (17) is inserted into the connecting hole on the plastic shell (1). A movable locking device (19) is installed on the plastic shell (1). The connector (17) is locked to the plastic shell (1) through the locking device (19).

5. A safety charger against electric shock according to claim 4, characterized in that: The locking device (19) includes a locking rod (20), a locking block (21), and a slider (22). The locking block (21) is slidably engaged in the locking slide hole (4). A slider (22) is provided on one side of the locking block (21). The slider (22) is slidably engaged with the first slide groove (6). The locking rod (20) is welded to the center of the locking block (21). The locking rod (20) passes through the locking rod hole (5) and abuts against the locking groove (18).

Images