Fast charging adapter capable of automatically powering off in case of fault

Abstract

The utility model discloses a fast charging adapter capable of automatically cutting off power in fault, which belongs to the technical field of adapters, and is technically characterized in that the fast charging adapter comprises a charging head, when the fast charging adapter breaks down through an arranged fault power-off mechanism, the magnitude of circuit current in a charging wire harness can be increased sharply at the moment, so that high temperature is generated; the high temperature on the charging wire harness is conducted to the disposable heating expansion block through the heat conduction sleeve, at the moment, the disposable heating expansion block expands, the movable conductive block is pushed to move in the direction close to the insulating plate, the movable conductive block is pushed not to make contact with the fixed conductive block any more, and therefore power-off protection processing in the fast charging adapter is completed. The length of the charging wire harness can be adjusted, pulled and controlled at will through the winding mechanism, great convenience is brought to a user, and the charging device has the advantages that power can be automatically cut off when a fault occurs, and the length of the wire harness can be conveniently adjusted for use.

Description

Technical Field

[0001] The utility model relates to the field of adapters, in particular to a fast charging adapter which automatically cuts off power in case of failure. Background Art

[0002] An adapter is an interface converter, which can be an independent hardware interface device that allows a hardware or electronic interface to connect to other hardware or electronic interfaces, or an information interface. For example: a power adapter, a tripod base adapter, a USB to serial port adapter, etc.

[0003] The existing fast charging adapters are very likely to generate huge currents when a fault occurs during charging, and may easily cause dangerous situations such as fire due to increased temperature, which will bring great safety hazards to people's use. There is a lack of corresponding facilities to automatically cut off the power according to faults, and the charging wiring harness is generally fixed in length. If it is too long or too short, it will cause great inconvenience to the user. It has poor applicability and cannot meet the actual use needs.

[0004] Therefore, it is necessary to provide a fast charging adapter that automatically cuts off power when a fault occurs, in order to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the embodiments of the utility model is to provide a fast charging adapter with automatic power-off in case of failure, aiming to solve the technical problems raised in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A fast charging adapter with automatic power-off in case of failure, comprising a charging head, a charging harness connected to the charging head via a power-off control socket, a data interface provided at one end of the charging harness, and further comprising:

[0008] A fault power-off mechanism, which is installed inside the power-off control seat and is used to cut off the power supply to protect the use of the charging head and the charging harness;

[0009] A reeling mechanism, which is installed on the charging harness and is used to reel in and adjust the use of the charging harness;

[0010] The fault power-off mechanism comprises a fixed conductive block and a movable conductive block for conductive connection, wherein the fixed conductive block is fixedly installed inside the power-off control seat, and the movable conductive block is slidably connected to the inner side of the fixed conductive block;

[0011] The fault power-off mechanism further includes a spring for elastically limiting the movable conductive block for conductive connection, an insulating plate is provided on one side of the movable conductive block, and a spring is provided on one side of the insulating plate;

[0012] The fault power-off mechanism also includes a disposable heat expansion block for fault triggering, a heat-conducting sleeve for heat conduction is provided at the connection between the charging harness and the power-off control seat, a disposable heat expansion block is provided at the connection between the heat-conducting sleeve and the movable conductive block, and the outer layer of the disposable heat expansion block is provided with a connecting sleeve.

[0013] As a further solution of the utility model, the winding mechanism includes a winding disk for winding up the charging wire harness, a reel for winding up the charging wire harness is arranged inside the winding disk, and a reset spring for resetting the winding is arranged inside the reel.

[0014] As a further solution of the utility model, the winding mechanism also includes a pawl for line release, the pawl is fixedly connected to one end of the connecting rod, the connecting rod is fixedly mounted on the movable sleeve, the movable sleeve is movably mounted on the winding disk, and the winding disk is provided with an annular ratchet for limiting the position of the ratchet, and the annular ratchet is mounted on the winding disk through a protective cover.

[0015] As a further solution of the utility model, the winding mechanism also includes a reset spring for pulling the winding and resetting, the middle part of the reset spring is connected to a connecting column, the movable sleeve is movably installed on the connecting column, a reset spring is provided at the connection between the movable sleeve and the connecting column, and a pull ring for pulling is provided on one side of the movable sleeve.

[0016] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art:

[0017] The utility model provides a fault power-off mechanism when a fault occurs in the fast charging adapter. At this time, the line current in the charging harness will surge, thereby generating high temperature. The high temperature on the charging harness is transmitted to the disposable heat expansion block through the heat conductive sleeve. At this time, the disposable heat expansion block expands, thereby pushing the movable conductive block to move toward the insulating plate. When the disposable heat expansion block is fully expanded, the movable conductive block is away from the position where it is adapted to be slidably connected with the fixed conductive block. At this time, the movable conductive block is no longer in contact with the fixed conductive block, thereby completing the power-off protection process inside the fast charging adapter.

[0018] The winding mechanism provided can adjust the length of the charging harness at will. When the charging harness needs to be recovered or the length of the charging harness needs to be shortened, the pull ring on the movable sleeve only needs to be pulled upward to disengage the ratchet on the connecting rod from the position where the ratchet is engaged with the annular ratchet. At this time, the charging harness in the winding reel is automatically wound up under the resetting action of the resetting coil spring, thereby realizing the adjustment of the length of the charging harness. It is easy to use and brings great convenience to the user.

[0019] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0021] Figure 2 It is a schematic diagram of the connection structure inside the power-off control socket in the utility model embodiment.

[0022] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of A.

[0023] Figure 4 It is a schematic diagram of the connection structure inside the protective cover in the utility model embodiment.

[0024] Figure 5 It is a schematic diagram of the connection structure of the movable sleeve in the embodiment of the utility model.

[0025] Figure numerals: 1. Charging head; 2. Charging harness; 3. Data interface; 4. Power-off control seat; 5. Reel; 6. Heat-conducting sleeve; 7. Connecting sleeve; 8. Disposable heat expansion block; 9. Fixed conductive block; 10. Movable conductive block; 11. Insulating plate; 12. Spring; 13. Protective cover; 14. Annular ratchet; 15. Connecting rod; 16. Ratchet; 17. Movable sleeve; 18. Pull ring; 19. Reset tension spring; 20. Connecting column; 21. Reset coil spring; 22. Reel. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0028] Example 1

[0029] See also Figure 1 to Figure 3 A fast charging adapter with automatic power-off upon failure, comprising a charging head 1, a charging harness 2 connected to the charging head 1 via a power-off control socket 4, a data interface 3 being provided at one end of the charging harness 2, and further comprising:

[0030] The fault power-off mechanism is installed inside the power-off control seat 4 and is used to provide power-off protection for the use of the charging head 1 and the charging harness 2.

[0031] Furthermore, the fault power-off mechanism includes a fixed conductive block 9 and a movable conductive block 10 for conductive connection. The fixed conductive block 9 is fixedly installed inside the power-off control seat 4 , and the movable conductive block 10 is slidably connected to the inner side of the fixed conductive block 9 .

[0032] Furthermore, the fault power-off mechanism also includes a spring 12 for elastically limiting the movable conductive block 10 for conductive connection. An insulating plate 11 is provided on one side of the movable conductive block 10 , and a spring 12 is provided on one side of the insulating plate 11 .

[0033] Furthermore, the fault power-off mechanism also includes a disposable heat expansion block 8 for fault triggering, a heat-conducting sleeve 6 for heat conduction is provided at the connection between the charging harness 2 and the power-off control seat 4, a disposable heat expansion block 8 is provided at the connection between the heat-conducting sleeve 6 and the movable conductive block 10, and the outer layer of the disposable heat expansion block 8 is provided with a connecting sleeve 7.

[0034] Preferably, the charging head 1 transmits data and performs charging processing through the data interface 3 on the charging harness 2. When the fast charging adapter fails, the line current in the charging harness 2 will surge, thereby generating high temperature. The high temperature on the charging harness 2 is transmitted to the disposable heat expansion block 8 through the heat conductive sleeve 6. At this time, the disposable heat expansion block 8 expands, thereby pushing the movable conductive block 10 to move toward the insulating plate 11.

[0035] When the one-time heat expansion block 8 is fully expanded, the movable conductive block 10 is away from the position where it is adapted to be slidably connected with the fixed conductive block 9. At this time, the movable conductive block 10 is no longer in contact with the fixed conductive block 9, thereby completing the power-off protection process inside the fast charging adapter;

[0036] And because the disposable heat expansion block 8 is set to expand once, the disposable heat expansion block 8 will not shrink after expansion, so it is easy to realize the power-off processing inside the fast charging adapter, so as to facilitate subsequent maintenance processing, the power-off protection effect is good, and it is easy to use.

[0037] Example 2

[0038] like Figure 1 to Figure 5 As shown, this embodiment, based on the embodiment 1, further includes a winding mechanism, which is installed on the charging harness 2 and is used to adjust the use of the charging harness 2.

[0039] Furthermore, the winding mechanism includes a winding drum 5 for winding up the charging wire harness 2, a reel 22 for winding up the charging wire harness 2 is arranged inside the winding drum 5, and a reset coil spring 21 for resetting the winding is arranged inside the reel 22.

[0040] Furthermore, the winding mechanism also includes a pawl 16 for line release clamping, the pawl 16 is fixedly connected to one end of the connecting rod 15, the connecting rod 15 is fixedly mounted on the movable sleeve 17, the movable sleeve 17 is movably mounted on the winding disk 5, and the winding disk 5 is provided with an annular ratchet 14 for limiting the clamping of the pawl 16, and the annular ratchet 14 is installed on the winding disk 5 through a protective cover 13.

[0041] Furthermore, the winding mechanism also includes a reset tension spring 19 for pulling the winding and resetting, the middle part of the reset coil spring 21 is connected to a connecting column 20, the movable sleeve 17 is movably installed on the connecting column 20, a reset tension spring 19 is arranged at the connection between the movable sleeve 17 and the connecting column 20, and a pull ring 18 for pulling is arranged on one side of the movable sleeve 17.

[0042] Preferably, in this embodiment, when the charging harness 2 used is too short to be convenient to use, the charging harness 2 can be directly pulled out, thereby driving the ratchet 16 on the connecting rod 15 to rotate, and when it is pulled out to a suitable position, the ratchet 16 at one end of the connecting rod 15 is always in a position where it is always engaged with the annular ratchet 14 on the protective cover 13, so as to facilitate adjustment and use;

[0043] When the charging harness 2 needs to be recovered or the length of the charging harness 2 needs to be shortened, it is only necessary to pull up the pull ring 18 on the movable sleeve 17, so that the pawl 16 on the connecting rod 15 is disengaged from the position where it is engaged with the annular ratchet 14. At this time, the charging harness 2 in the reel 5 is automatically reeled under the resetting action of the resetting coil spring 21, so that the length of the charging harness 2 can be adjusted well. It is easy to use and brings great convenience to the user.

[0044] It should be particularly noted that the components in this application are all universal standard parts or components well known to those skilled in the art, which effectively solve the technical problems raised in the background technology.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fast charging adapter with automatic power-off in case of failure, comprising a charging head (1), characterized in that: The charging head (1) is connected to a charging harness (2) via a power-off control seat (4), one end of the charging harness (2) is provided with a data interface (3), and further comprises: A fault power-off mechanism, which is installed inside the power-off control seat (4) and is used to provide power-off protection for the use of the charging head (1) and the charging harness (2); A reeling mechanism, which is mounted on the charging harness (2) and is used to adjust the reeling of the charging harness (2); The fault power-off mechanism comprises a fixed conductive block (9) and a movable conductive block (10) for conductive connection, wherein the fixed conductive block (9) is fixedly installed inside the power-off control seat (4), and the movable conductive block (10) is slidably connected to the inner side of the fixed conductive block (9); The fault power-off mechanism further comprises a spring (12) for elastically limiting the movable conductive block (10) for conductive connection, an insulating plate (11) being arranged on one side of the movable conductive block (10), and a spring (12) being arranged on one side of the insulating plate (11); The fault power-off mechanism also includes a disposable heat expansion block (8) for fault triggering, a heat-conducting sleeve (6) for heat conduction is provided at the connection between the charging harness (2) and the power-off control seat (4), a disposable heat expansion block (8) is provided at the connection between the heat-conducting sleeve (6) and the movable conductive block (10), and the outer layer of the disposable heat expansion block (8) is provided with a connecting sleeve (7).

2. The fast charging adapter with automatic power-off in case of failure according to claim 1, characterized in that: The winding mechanism comprises a winding disk (5) for winding up the charging wire harness (2), a reel (22) for winding up the charging wire harness (2) is arranged inside the winding disk (5), and a resetting coil spring (21) for resetting the winding is arranged inside the reel (22).

3. The fast charging adapter with automatic power off in case of failure according to claim 2, characterized in that: The winding mechanism further comprises a ratchet (16) for line release clamping, the ratchet (16) being fixedly connected to one end of a connecting rod (15), the connecting rod (15) being fixedly mounted on a movable sleeve (17), the movable sleeve (17) being movably mounted on a winding reel (5), the winding reel (5) being provided with an annular ratchet (14) for limiting the position of the ratchet (16), the annular ratchet (14) being mounted on the winding reel (5) via a protective cover (13).

4. The fast charging adapter with automatic power off in case of failure according to claim 3, characterized in that: The winding mechanism also includes a reset spring (19) for pulling the winding back, the middle of the reset spring (21) is connected to a connecting column (20), the movable sleeve (17) is movably mounted on the connecting column (20), a reset spring (19) is provided at the connection between the movable sleeve (17) and the connecting column (20), and a pull ring (18) for lifting is provided on one side of the movable sleeve (17).

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