Intelligent charger for device security protection

Abstract

This invention relates to the field of charger technology, and more particularly to a smart charger for device safety protection, comprising a plug assembly; the plug assembly is electrically connected to a charger body via a first cable; the charger body is electrically connected to a charging head via a second cable; the plug assembly includes a housing; two prongs are rotatably connected to the housing, the ends of the prongs having sleeves, and the prongs rotating on the housing via the sleeves; gears are fixedly connected to the outside of the sleeves, and a rack that moves up and down is slidably connected inside the housing, the end of the rack protruding from the housing, and both sides of the rack having teeth, the gears meshing with the rack; when the prongs are inserted into a socket, the rack is controlled to move, the rack drives the two gears to rotate, causing the two prongs to be locked in a figure-eight shape in the socket. This invention, through adaptive compression of the rack, allows the two prongs to be locked in a figure-eight shape in the socket, which can adapt to charging holes of different diameters, ensuring that the plug assembly is firmly fixed after being inserted into the socket.

Description

Technical Field

[0001] This invention relates to the field of charger technology, and more particularly to a smart charger for device safety protection. Background Technology

[0002] Existing chargers cannot automatically cut off power when the product is fully charged or when an abnormal situation occurs;

[0003] Existing technologies, such as the electric vehicle charger disclosed in patent application CN113922466A, although they achieve automatic power-off processing, require the charger body to be fixed in place in order to achieve this by unplugging the plug through cable recycling. In actual use, the charger body is not fixed in place, but is placed in a certain place and is in a movable state, which limits its use.

[0004] At the same time, the plugs of existing chargers are not secure when inserted into the socket and are prone to falling off. Summary of the Invention

[0005] To overcome the shortcomings mentioned in the background art, this invention provides an intelligent charger for device safety protection, including a plug assembly; the plug assembly is electrically connected to a charger body via a first cable; the charger body is electrically connected to a charging head via a second cable; the plug assembly includes a housing; two prongs are rotatably connected to the housing, the ends of the prongs have sleeves, and the prongs rotate on the housing via the sleeves; gears are fixedly connected to the outside of the sleeves, and a rack that moves up and down is slidably connected in the housing, the end of the rack protruding from the housing, and both sides of the rack have teeth, the gears and the rack mesh with each other, when the prongs are inserted into the socket, the rack is controlled to move, the rack drives the two gears to rotate, so that the two prongs are locked in the socket in a figure-eight shape.

[0006] Furthermore, it also includes damping blocks, with a damping block fixedly connected to both the upper and lower side plates of the housing; the end of the rack is not provided with teeth, and the end of the rack is slidably connected to the damping block; when the rack is not subjected to external compressive force, the movement of the rack is restricted by the damping block.

[0007] Furthermore, it also includes a plug-in post; the plug-in post is inserted into the sleeve, and the sleeve and the plug-in post are electrically connected when they are inserted; the plug-in post is electrically connected to a third cable, which is flexible and is electrically connected to the first cable; when charging is complete, the control power component drives the plug-in post to separate from the sleeve and cut off the power.

[0008] Furthermore, the power assembly includes an electric push rod; the electric push rod is installed inside the housing, and a connecting plate is fixedly connected to the telescopic part of the electric push rod. The connecting plate is fixedly connected to two plug-in posts. When the telescopic part of the electric push rod retracts, the connecting plate drives the plug-in posts to move and disengage from the sleeve.

[0009] Furthermore, it also includes a connecting block; the connecting block is fixedly connected to the middle of the connecting plate; a wedge block is fixedly connected to the connecting block; a slot is opened in the middle of the rack; initially, the wedge block is located on the left side of the rack, and when the electric push rod telescopic part retracts, the wedge block moves to the right, and the wedge block forces the rack to move and reset through the slot.

[0010] Furthermore, the charger itself has a built-in battery; the battery powers the electric actuator.

[0011] Furthermore, the charger itself has a built-in alarm module that monitors the charging current status.

[0012] Furthermore, it also includes a reset button, which, when pressed, controls the extension and retraction of the electric push rod to extend.

[0013] Furthermore, it also includes a fixed plate; a fixed plate is fixedly connected inside the housing, and a compression component is fixedly connected to the fixed plate; an extrusion plate is fixedly connected to the compression component; a connecting plate covers the extrusion plate in length; when the connecting plate moves to the right and contacts the extrusion plate, the connecting plate extrudes the compression component through the extrusion plate; a hydraulic push rod is fixedly connected inside the housing; the hydraulic push rod is connected to the compression component through a connecting pipe, and when the compression component is extruded, the liquid in the compression component enters the hydraulic push rod through the connecting pipe, forcing the extension part of the hydraulic push rod to extend; a return spring is provided between the fixed plate and the extrusion plate, and the return spring forces the extension part of the hydraulic push rod to retract.

[0014] Furthermore, the socket is provided with a socket that matches the position and size of the hydraulic actuator telescopic part, allowing the hydraulic actuator telescopic part to be inserted into the socket with a depth of 0.5cm-2cm.

[0015] The beneficial effects are: 1. The present invention uses an adaptive extrusion rack to make the two prongs fit into the socket in a figure-eight shape, which can be adapted to charging holes of different diameters, so that the plug assembly can be firmly fixed after being inserted into the socket;

[0016] 2. By setting up interlocking plugs and sleeves, the plugs and sleeves can be separated when the power is off, and the power can be cut off inside the plug assembly. Compared with the prior art, it does not require the charger body to be fixed, making it convenient to use and meeting the charging needs of multiple scenarios.

[0017] 3. When the plug assembly is de-energized, the present invention allows the two prongs to return to a vertical position, thereby achieving automatic unlocking of the locking structure;

[0018] 4. This invention enables the plug assembly to automatically pop out after a power outage, providing dual protection against power failure. Furthermore, the plug assembly popping out of the charging port of the socket visually alerts the user that charging is complete or an abnormal situation has occurred.

[0019] 5. The present invention provides a socket with a hole that matches the position and size of the hydraulic actuator telescopic part, allowing the hydraulic actuator telescopic part to be inserted into the socket hole, thus preventing the plug assembly from falling to the ground after it pops out. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the plug assembly of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the plug assembly of the present invention;

[0023] Figure 4 This is a schematic diagram of the combined structure of the gear, rack, and damping block of the present invention;

[0024] Figure 5 This is a schematic diagram of the combined structure of the insert, sleeve, plug post and third cable of the present invention;

[0025] Figure 6 for Figure 3 The diagram shows the state at which the electric push rod retracts and the connecting plate comes into contact with the pressing plate.

[0026] Labels in the diagram: 1-Plug assembly, 2-Charger body, 3-Charging head, 21-First cable, 22-Second cable, 11-Housing, 12-Plug, 12a-Sleeve, 13-Plug post, 14-Third cable, 15-Gear, 16-Rack, 17-Damping block, 101-Electric push rod, 102-Connecting plate, 103-Connecting block, 104-Wedge block, 105-Reset button, 1011-Fixing plate, 1012-Compression component, 1013-Extrusion plate, 1014-Hydraulic push rod, 1015-Connecting tube, 1016-Reset spring. Detailed Implementation

[0027] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0028] Example 1: As Figures 1-6 As shown, a smart charger for device safety protection includes a plug assembly 1, a charger body 2, and a charging head 3; the plug assembly 1 is electrically connected to the charger body 2 via a first cable 21; the charger body 2 is electrically connected to the charging head 3 via a second cable 22.

[0029] The plug assembly 1 includes a housing 11, inserts 12, sleeves 12a, gears 15, and rack 16. Two inserts 12 are rotatably connected to the housing 11, and each insert 12 has a sleeve 12a at its end. The inserts 12 rotate on the housing 11 through the sleeves 12a. Gears 15 are fixed to the outside of the sleeves 12a. A rack 16 that moves up and down is slidably connected to the housing 11. The end of the rack 16 protrudes from the housing 11. Both sides of the rack 16 have teeth. The gears 15 and the rack 16 mesh with each other. When the inserts 12 are inserted into the socket, the rack 16 is controlled to move. The rack 16 drives the two gears 15 to rotate, so that the two inserts 12 are locked in the socket in a figure-eight shape. This allows the plug assembly 1 to be firmly inserted into the socket.

[0030] It also includes a damping block 17, with a damping block 17 fixedly connected to both the upper and lower side plates of the housing 11; the end of the rack 16 is not provided with teeth, and the end of the rack 16 is slidably connected to the damping block 17; when the rack 16 is not subjected to external extrusion force, the movement of the rack 16 is restricted by the damping block 17.

[0031] It also includes a plug post 13, a third cable 14, and a power assembly; the plug post 13 is inserted into the sleeve 12a, and the sleeve 12a and the plug post 13 are electrically connected when inserted; the plug post 13 is electrically connected to the third cable 14, the third cable 14 is flexible, and the third cable 14 is electrically connected to the first cable 21; when charging is complete, the control power assembly drives the plug post 13 to separate from the sleeve 12a to cut off the power.

[0032] The power assembly includes an electric push rod 101 and a connecting plate 102. The electric push rod 101 is installed inside the housing 11. The connecting plate 102 is fixedly connected to the telescopic part of the electric push rod 101. The connecting plate 102 is fixedly connected to two plug-in pins 13. When the telescopic part of the electric push rod 101 retracts, the connecting plate 102 drives the plug-in pins 13 to move and disengage from the sleeve 12a.

[0033] It also includes a connecting block 103 and a wedge block 104 (arranged in an isosceles trapezoidal shape); the connecting block 103 is fixedly connected to the middle of the connecting plate 102; the wedge block 104 is fixedly connected to the connecting block 103; a slot is opened in the middle of the rack 16; initially, the wedge block 104 is located on the left side of the rack 16. When the telescopic part of the electric push rod 101 retracts, the wedge block 104 moves to the right. The wedge block 104 forces the rack 16 to move and reset through the slot, thus allowing the insert 12 to return to the vertical state.

[0034] The charger body 2 has a built-in battery; the electric push rod 101 is powered by the battery.

[0035] The charger body 2 has a built-in alarm module that monitors the charging current status. When charging is complete or an abnormal situation occurs, the module controls the telescopic part of the electric push rod 101 to retract.

[0036] It also includes a reset button 105, which controls the extension and retraction of the electric push rod 101 to be extended by pressing the reset button 105.

[0037] It also includes a fixed plate 1011, a compression component 1012, a pressing plate 1013, a hydraulic push rod 1014, a connecting pipe 1015, and a return spring 1016; the fixed plate 1011 is fixedly connected inside the housing 11, and the compression component 1012 is fixedly connected to the fixed plate 1011; the pressing plate 1013 is fixedly connected to the compression component 1012; the connecting plate 102 covers the pressing plate 1013 in length; when the connecting plate 102 moves to the right and contacts the pressing plate 1013, the connecting plate 102 presses the compression component 1012 through the pressing plate 1013; the housing A hydraulic push rod 1014 is fixedly connected to the body 11, and the extension direction of the hydraulic push rod 1014 is in the socket direction. The hydraulic push rod 1014 is connected to the compression member 1012 through the connecting pipe 1015. When the compression member 1012 is squeezed, the liquid in the compression member 1012 enters the hydraulic push rod 1014 through the connecting pipe 1015, forcing the extension of the hydraulic push rod 1014 to extend. A return spring 1016 is provided between the fixed plate 1011 and the compression plate 1013, and the return spring 1016 forces the extension of the hydraulic push rod 1014 to retract.

[0038] The socket has a socket hole that matches the position and size of the telescopic part of the hydraulic actuator 1014, so that the telescopic part of the hydraulic actuator 1014 can be inserted into the socket hole, with a depth of 0.5cm-2cm.

[0039] When using this invention, the charging head 3 is inserted into the product's charging port, and the plug assembly 1 is inserted into the socket to charge the product.

[0040] Specifically, such as Figures 2-6 As shown, two prongs 12 are inserted into the corresponding charging holes of the socket. After the prongs 12 are inserted, the user squeezes the rack 16 to move the rack 16 upward or downward. When the rack 16 moves, the teeth on both sides of the rack 16 mesh with the two gears 15, thereby driving the two gears 15 to rotate. The gears 15 then drive the prongs 12 to rotate through the sleeve 12a. The two prongs 12 rotate in opposite directions, so that the two prongs 12 are stuck in the socket in a figure-eight shape. The degree of rotation of the prongs 12 is related to the distance the user moves by squeezing the rack 16. When the user feels greater resistance and it is not easy to pull the prongs 12 out of the charging hole of the socket, the user stops squeezing the rack 16. In this way, by adaptively squeezing the rack 16, the two prongs 12 are stuck in the socket in a figure-eight shape, which can be adapted to charging holes of different diameters, so that the plug assembly 1 can be firmly fixed after being inserted into the socket.

[0041] It should be noted that both ends of the rack 16 protrude from the housing 11, allowing the plug assembly 1 to be inserted in both directions for convenient operation. At the same time, when the rack 16 is not subjected to external pressure, the movement of the rack 16 is restricted by the damping block 17, and when the rack 16 is subjected to external pressure, it overcomes the resistance of the damping block 17.

[0042] During charging, the charging current status is monitored by an alarm module. When charging is complete or an abnormal situation occurs (the current decreases upon completion of charging, or increases due to short circuits, overcurrent, or other abnormalities), automatic power-off is required. The power-off operation is as follows: the electric push rod 101 is powered by the battery built into the charger body 2, controlling the retraction of the telescopic part of the electric push rod 101. Figure 3 , Figure 6 As shown, the retraction of the telescopic part of the electric push rod 101 causes the connecting plate 102 to move to the right;

[0043] When the connecting plate 102 moves to the right, firstly, the connecting plate 102 drives the two plug pins 13 to move to the right, causing the plug pins 13 to separate from the sleeve 12a, thereby achieving power-off processing; thus, by setting the plug pins 13 and sleeve 12a to be plugged into each other, the present invention can separate the plug pins 13 and sleeve 12a when power is off, thereby achieving power-off within the plug assembly 1. Compared with the prior art (CN113922466A), it does not require the charger body 2 to be fixed, making it convenient to use and meeting the charging needs of multiple scenarios;

[0044] Secondly, the rightward movement of the connecting plate 102 drives the wedge block 104 to move to the right via the connecting block 103, allowing the wedge block 104 to pass through the slot in the middle of the rack 16. Through the combined action of the isosceles trapezoidal wedge block 104 and the slot (the wedge block 104 presses against the slot), the rack 16 is forced to move and reset, returning to the central position. At the same time, under the combined action of the gear 15 and the rack 16, the insert 12 returns to a vertical state and is no longer stuck in the socket, making it easy to pull out. Thus, when the plug assembly 1 is de-energized, the present invention allows the two inserts 12 to return to a vertical state, achieving automatic unlocking of the locking structure.

[0045] Thirdly, such as Figure 6As shown, at this moment, the connecting plate 102 and the extrusion plate 1013 are in contact. When the connecting plate 102 continues to move to the right, it pushes the extrusion plate 1013 to move to the right, thereby extruding the extrusion plate 1013 into the compression member 1012. The liquid in the compression member 1012 enters the hydraulic push rod 1014 through the connecting pipe 1015, forcing the extension part of the hydraulic push rod 1014 to extend. The extension part of the hydraulic push rod 1014 abuts against the socket. As the electric push rod 101 continues to drive the connecting plate 102 to move to the right, the extension part of the hydraulic push rod 1014 continues to extend, and the socket... Under the force, the vertically positioned plug 12 is gradually pulled out of the charging hole of the socket (i.e., the plug assembly 1 pops out). In this way, the present invention can automatically pop out the plug assembly 1 after the power is cut off, which provides double protection against power failure. On the other hand, after the plug assembly 1 pops out of the charging hole of the socket, it can also visually remind the user that the charging is complete or an abnormal situation has occurred (of course, different lights can also be set to realize the reminder in different situations, such as green light when charging is complete, and the light can be powered by the built-in battery of the charger body 2).

[0046] Furthermore, a socket can be provided on the socket to match the position and size of the telescopic part of the hydraulic actuator 1014, so that the telescopic part of the hydraulic actuator 1014 can be inserted into the socket. The depth of the socket is 0.5cm-2cm. In this way, after the telescopic part of the hydraulic actuator 1014 is pushed out and the plug assembly 1 pops out of the socket, the end of the telescopic part of the hydraulic actuator 1014 is still inserted into the socket, and the plug assembly 1 continues to hang on the socket. This ensures that the plug assembly 1 will not fall to the ground after it pops out.

[0047] Finally, when it is necessary to unplug the plug assembly 1, the user unplugs the plug assembly 1 from the socket and presses the reset button 105 to control the telescopic part of the electric push rod 101 to move to the left to reset. Under the action of the reset spring 1016, the liquid that entered the hydraulic push rod 1014 returns to the compression member 1012 through the connecting pipe 1015. The telescopic part of the hydraulic push rod 1014 retracts, and at the same time the compression member 1012 expands again, forcing the extrusion plate 1013 to move to the left to reset, ready for the next use.

[0048] It should be noted that the alarm module can also monitor parameters such as voltage, temperature, and charging time, which will not be elaborated here.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart charger for device safety protection, comprising a plug assembly (1); the plug assembly (1) is electrically connected to a charger body (2) via a first cable (21); the charger body (2) is electrically connected to a charging head (3) via a second cable (22); Its characteristics are, The plug assembly (1) includes a housing (11); two prongs (12) are rotatably connected to the housing (11), and the ends of the prongs (12) have sleeves (12a). The prongs (12) rotate on the housing (11) through the sleeves (12a); a gear (15) is fixedly connected to the outside of the sleeves (12a), and a rack (16) that moves up and down is slidably connected in the housing (11). The ends of the rack (16) protrude from the housing (11), and both sides of the rack (16) have teeth. The gears (15) and the rack (16) mesh with each other. When the prongs (12) are inserted into the socket, the rack (16) is controlled to move. The rack (16) drives the two gears (15) to rotate, so that the two prongs (12) are stuck in the socket in a figure-eight shape.

2. The intelligent charger for device safety protection according to claim 1, characterized in that, It also includes a damping block (17), and a damping block (17) is fixedly connected to the upper and lower side plates of the housing (11); the end of the rack (16) is not provided with teeth, and the end of the rack (16) is slidably connected to the damping block (17); when the rack (16) is not subjected to external extrusion force, the movement of the rack (16) is restricted by the damping block (17).

3. The intelligent charger for device safety protection according to claim 2, characterized in that, It also includes a plug-in post (13); the plug-in post (13) is inserted into the sleeve (12a), and the sleeve (12a) and the plug-in post (13) are electrically connected when plugged in; the plug-in post (13) is electrically connected to a third cable (14), the third cable (14) is flexible, and the third cable (14) is electrically connected to the first cable (21); when charging is complete, the control power component drives the plug-in post (13) to separate from the sleeve (12a) and perform power-off processing.

4. A smart charger for device safety protection according to claim 3, characterized in that, The power assembly includes an electric push rod (101); the electric push rod (101) is installed inside the housing (11), and the extension part of the electric push rod (101) is fixedly connected to a connecting plate (102). The connecting plate (102) is fixedly connected to two plug-in pins (13). When the extension part of the electric push rod (101) retracts, the connecting plate (102) drives the plug-in pins (13) to move and disengage from the sleeve (12a).

5. A smart charger for device safety protection according to claim 4, characterized in that, It also includes a connecting block (103); the connecting block (103) is fixedly connected to the middle of the connecting plate (102); a wedge block (104) is fixedly connected to the connecting block (103); a slot is opened in the middle of the rack (16); initially, the wedge block (104) is located on the left side of the rack (16), when the telescopic part of the electric push rod (101) retracts, the wedge block (104) moves to the right, and the wedge block (104) forces the rack (16) to move and reset through the slot.

6. A smart charger for device safety protection according to claim 4, characterized in that, The charger body (2) has a built-in battery; the battery powers the electric push rod (101).

7. A smart charger for device safety protection according to claim 4, characterized in that, The charger body (2) has a built-in alarm module to monitor the charging current status.

8. A smart charger for device safety protection according to claim 4, characterized in that, It also includes a reset button (105), which controls the extension and retraction of the electric push rod (101) to be pushed out by pressing the reset button (105).

9. A smart charger for device safety protection according to claim 4, characterized in that, It also includes a fixing plate (1011); the fixing plate (1011) is fixedly connected inside the housing (11), and a compression member (1012) is fixedly connected to the fixing plate (1011); an extrusion plate (1013) is fixedly connected to the compression member (1012); the length of the connecting plate (102) covers the extrusion plate (1013); when the connecting plate (102) moves to the right and contacts the extrusion plate (1013), the connecting plate (102) extrudes the compression member (1012) through the extrusion plate (1013); a hydraulic thruster is fixedly connected in the housing (11). Rod (1014); Hydraulic push rod (1014) is connected to compression component (1012) through connecting pipe (1015). When compression component (1012) is squeezed, liquid in compression component (1012) enters hydraulic push rod (1014) through connecting pipe (1015), forcing the extension part of hydraulic push rod (1014) to extend; A return spring (1016) is provided between fixed plate (1011) and extrusion plate (1013), and the extension part of hydraulic push rod (1014) is forced to retract through return spring (1016).

10. A smart charger for device safety protection according to claim 9, characterized in that, The socket has a socket hole that matches the position and size of the telescopic part of the hydraulic actuator (1014), so that the telescopic part of the hydraulic actuator (1014) can be inserted into the socket hole, with a depth of 0.5cm-2cm.

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