Interlocking device of non-standard charging plug of lithium battery charger

Abstract

The utility model discloses an interlocking device of a non-standard charging plug of a lithium battery charger, which comprises a male head and a female head, and further comprises a first fixed bracket, a second fixed bracket, a third fixed bracket and a third fixed bracket, the door holder is installed on the first fixing support through a spring hinge, and the door holder turns over relative to the first fixing support under the action of the spring hinge; the second fixing support is installed on the male head, and a lock groove is formed in the second fixing support; the spring lock is mounted on the second fixing bracket; after the door holder is inserted into the lock groove, the door holder is locked by the spring lock; the door holder can be unlocked by moving the spring lock; after the door holder is unlocked, the door holder can pop out of the lock groove under the action of the spring hinge; the photoelectric switch is arranged in the second fixing support, and the photoelectric switch is connected to the charger controller to control the starting of the charger; and when the door holder is inserted into the lock groove, the photoelectric switch is triggered and conducted, so that the charger controller starts the charger to perform charging operation. The electric connector has the function of preventing hot plugging.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery chargers, and particularly relates to an interlocking device for a non-standard charging plug of a lithium battery charger. Background Art

[0002] Currently, non-standard lithium battery charging plugs and sockets (connectors) in use do not have an interlocking device during plugging and unplugging. The original clamping structure of the plug of the charger for fixing the output wire is also not suitable for fixing and clamping a group of wire harnesses with corrugated pipes. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an interlocking device for a non-standard charging plug of a lithium battery charger aiming at the above deficiencies existing in the prior art. It can solve the problems of current ablation of the output plug caused by accidental unplugging during charging of the non-standard connector of the lithium battery charger and abnormal heating caused by an increase in contact resistance, and at the same time solve the problem of fixing the output wire harness of the charger, and can also be used as a force-bearing component for users to plug and unplug.

[0004] The technical problem to be solved by the utility model can be realized by the following technical solutions:

[0005] An interlocking device for a non-standard charging plug of a lithium battery charger, including a male head and a female head, further including:

[0006] A first fixing bracket installed on the female head;

[0007] A door buckle installed on the first fixing bracket by using a spring hinge, and the door buckle flips relative to the first fixing bracket under the action of the spring hinge:

[0008] A second fixing bracket installed on the male head, and a lock groove is provided on the second fixing bracket;

[0009] A spring lock installed on the second fixing bracket; after the door buckle is inserted into the lock groove, the door buckle is locked by the spring lock; moving the spring lock can unlock the door buckle; after the door buckle is unlocked, it can pop out of the lock groove under the action of the spring hinge;

[0010] An optoelectronic switch disposed in the second fixing bracket and located below the lock groove, the optoelectronic switch is connected to the charger controller to control the startup of the charger; when the door buckle is inserted into the lock groove, the optoelectronic switch is triggered to conduct, so that the charger controller starts the charger for charging operation.

[0011] In a preferred embodiment of the present utility model, bolt sleeves are provided on both the male head and the female head, and bolts are fixed to the first fixing bracket and the second fixing bracket through the inner holes of the bolt sleeves, so that the first fixing bracket is fixed to the female head, and the second fixing bracket is fixed to the male head.

[0012] In a preferred embodiment of the present utility model, a buckle edge for inserting into the slot is provided at one end of the door buckle away from the spring hinge, and a lock hole is provided on the buckle edge. When locked, the lock tongue of the spring lock is inserted into the lock hole.

[0013] In a preferred embodiment of the present utility model, an unlocking groove is provided on the second fixing bracket, and the unlocking handle on the spring lock passes through the unlocking groove and can move in the unlocking groove for unlocking.

[0014] In a preferred embodiment of the present utility model, the unlocking groove and the locking groove are perpendicular to each other.

[0015] In a preferred embodiment of the present utility model, a partition plate serving as a handle is provided between the unlocking groove and the locking groove.

[0016] In a preferred embodiment of the present utility model, a hoop is installed on the second fixing bracket, and the lead wire on the male head is fixed to the second fixing bracket by the hoop.

[0017] In a preferred embodiment of the present utility model, a mounting bracket is installed on the second fixing bracket, and the spring lock and the photoelectric switch are installed on the mounting bracket.

[0018] In a preferred embodiment of the present utility model, a handle hole is provided on the second fixing bracket.

[0019] Due to the adoption of the above technical solutions, the present utility model has the following functions:

[0020] 1. Function of preventing hot plugging: The door buckle and the spring lock of the present utility model are respectively installed on the male head and the female head of the non-standard connector. When the door buckle and the spring lock are locked, the photoelectric switch is triggered to give a connection signal, and the connection signal of the photoelectric switch is sent to the charger controller, and the charger controller timely connects the main circuit of the charger for charging operation. When the door buckle and the spring lock are unlocked and the door buckle pops out of the locking groove, the photoelectric switch gives a disconnection signal, and the disconnection signal of the photoelectric switch is sent to the charger controller to timely disconnect the main circuit, so that the charger stops charging operation, thereby preventing the operation of accidentally unplugging the connector while it is energized.

[0021] 2. Wiring harness fastening function: The lead wires on the male head are fixed to the second fixing bracket through a hoop, which can ensure that all the wiring harnesses in the corrugated pipe are reliably fixed to the second fixing bracket, avoiding the wiring harness from being stressed and causing abnormal stress on the wiring terminal of the male head.

[0022] 3. Connector handle function: The present utility model is provided with a handle hole on the second fixing bracket, ensuring that the user can conveniently pull out the male head by hand, avoiding poor contact of the wiring harness caused by directly pulling the wiring harness. Brief Description of the Drawings

[0023] Figure 1 It is an exploded schematic view of the interlocking device of the non-standard charging plug of the lithium battery charger of the present utility model.

[0024] Figure 2 It is one of the schematic views of the non-standard charging plug of the lithium battery charger of the present utility model in the locked state.

[0025] Figure 3 It is another schematic view of the non-standard charging plug of the lithium battery charger of the present utility model in the locked state.

[0026] Figure 4 It is a schematic view of the female head structure in the non-standard charging plug of the lithium battery charger of the present utility model.

[0027] Figure 5 It is a schematic view of the male head structure in the non-standard charging plug of the lithium battery charger of the present utility model.

[0028] Figure 6 It is a schematic view of the door latch popping out of the lock groove in the non-standard charging plug of the lithium battery charger of the present utility model.

[0029] Figure 7 It is a third schematic view of the non-standard charging plug of the lithium battery charger of the present utility model in the locked state. Detailed Embodiment

[0030] The present utility model will be described in detail below in conjunction with the drawings and specific embodiments.

[0031] Refer to Figures 1 to 7 , an interlocking device of a non-standard charging plug of a lithium battery charger shown in the figure, includes a non-standard connector, and the non-standard connector includes a male head 100 and a female head 200.

[0032] It further includes: a first fixing bracket 310, a door latch 320, a spring hinge 330. Bolt sleeves 210 are provided on the female head 200, and bolts 340 pass through the bolt sleeves 210 and are screwed into the bolt holes on the first fixing bracket 310, so that the first fixing bracket 310 is installed on the female head 200.

[0033] The door latch 320 is installed on the first fixed bracket 310 by a spring hinge 330, and the door latch 320 flips relative to the first fixed bracket 310 under the action of the spring hinge 330.

[0034] One end of the door latch 320 away from the spring hinge 330 is provided with a buckle edge 321, and a lock hole 321a is provided on the buckle edge 321.

[0035] It further includes: a second fixed bracket 410, a mounting bracket 420, a spring lock 430, a photoelectric switch 440. Bolt sleeves 110 are provided on the male head 100, and bolts 450 pass through the bolt sleeves 110 and are screwed into the bolt holes on the second fixed bracket 410, so that the second fixed bracket 410 is installed on the male head 100.

[0036] A lock groove 411 and an unlocking groove 412 are provided on the second fixed bracket 410; the unlocking groove 412 is perpendicular to the lock groove 411. An isolation plate 460 that also serves as a handle is provided between the unlocking groove 412 and the lock groove 411, which can protect the spring lock 430 and prevent the spring lock 430 from being accidentally bumped and popped open, resulting in power-off of the device. In addition, a handle hole 413 is provided on the second fixed bracket 410. Through this handle hole 413, it can ensure that the user can conveniently pull out the male head 100 by hand, avoiding poor contact of the wire harness caused by directly pulling the wire harness. A hoop 470 is installed on the second fixed bracket 410, and the lead wire 120 on the male head 100 is fixed on the second fixed bracket 410 by this hoop 470, so that all the wire harnesses in the corrugated pipe 480 can be reliably fixed on the second fixed bracket 410, avoiding abnormal stress on the wire harness at the male head connection end due to the wire harness being stressed.

[0037] The mounting bracket 420 is installed on the second fixed bracket 410, the spring lock 430 and the photoelectric switch 440 are installed on the mounting bracket 420, and the unlocking handle 431 on the spring lock 430 passes through the unlocking groove 412 and can move in the unlocking groove 412 for unlocking.

[0038] The photoelectric switch 440 is located below the lock groove 411, and the photoelectric switch 440 is connected to a charger controller (not shown in the figure) to control the activation of the charger.

[0039] The working principle of the present utility model is as follows:

[0040] In the initial state, the male head 100 is not inserted into the female head 200. At this time, the photoelectric switch 440 is not triggered, so that the charger is in a power-off state.

[0041] When charging is required, the male head 100 is inserted into the female head 200. If the door latch 320 is in the open state without being pressed at this time, the photoelectric switch 440 is not triggered, so that the charger is in a power-off state.

[0042] When the door latch 320 is pressed in place, the latch edge 321 on the door latch 320 is inserted into the lock groove 411, and the locking tongue on the spring lock 430 is inserted into the lock hole 321a on the latch edge 321 to lock the door latch 320. The latch edge 321 of the door latch 320 triggers the photoelectric switch 440, the photoelectric switch 440 is turned on, and a connection signal is given. The connection signal of the photoelectric switch 440 is sent to the charger controller, and the charger controller promptly turns on the main circuit of the charger for charging operations. At this time, the male connector 100 is locked by the door latch 320 and the spring lock 430 and cannot be manually pulled out.

[0043] When it is necessary to pull out the male connector 100, the unlocking handle 431 on the spring lock 430 is moved by hand to move the spring lock 430, so that the locking tongue on the spring lock 430 withdraws from the lock hole 321a on the door latch 320 to unlock the door latch 320. After the door latch 320 is unlocked, it bounces upward by relying on the spring hinge 330, so that the latch edge 321 on the door latch 320 pops out of the lock groove 411, the photoelectric switch 440 returns to the off state, and the charger controller controls the charger output to disconnect. At this time, the operator can safely unplug the male connector 100.

Claims

1. An interlocking device for a non-standard charging plug of a lithium battery charger, comprising a male plug and a female plug, characterized in that: Also includes: A first fixing bracket mounted on the female head; A door catch is installed on the first fixing bracket by a spring hinge, and the door catch flips relative to the first fixing bracket under the action of the spring hinge: A second fixing bracket installed on the male head, wherein a locking groove is provided on the second fixing bracket; a spring lock mounted on the second fixing bracket; After the door catch is inserted into the lock slot, the door catch is locked by the spring lock; The door buckle can be unlocked by moving the spring lock; after the door buckle is unlocked, the lock slot can be popped out under the action of the spring hinge; A photoelectric switch is arranged in the second fixing bracket and located below the lock slot, and the photoelectric switch is connected to the charger controller to control the opening of the charger; when the door buckle is inserted into the lock slot, the photoelectric switch is triggered to conduct, so that the charger controller starts the charger to perform charging operation.

2. The interlocking device of the non-standard charging plug of a lithium battery charger according to claim 1, characterized in that: Bolt sleeves are provided on both the male head and the female head, and bolts pass through inner holes of the bolt sleeves and are fixed on the first fixing bracket and the second fixing bracket, so that the first fixing bracket is fixed on the female head and the second fixing bracket is fixed on the male head.

3. The interlocking device of the non-standard charging plug of a lithium battery charger according to claim 1, characterized in that: A buckle edge for inserting into the slot is arranged at one end of the door buckle away from the spring hinge, and a lock hole is arranged on the buckle edge. When locking, the lock tongue of the spring lock is inserted into the lock hole.

4. An interlocking device for a non-standard charging plug of a lithium battery charger according to any one of claims 1 to 3, characterized in that: An unlocking slot is arranged on the second fixing bracket, and an unlocking handle on the spring lock passes through the unlocking slot and can be moved in the unlocking slot to unlock.

5. The interlocking device of the non-standard charging plug of a lithium battery charger according to claim 4, characterized in that: The unlocking slot and the locking slot are perpendicular to each other.

6. The interlocking device of the non-standard charging plug of a lithium battery charger according to claim 5, characterized in that: An isolation plate which also serves as a handle is arranged between the unlocking groove and the locking groove.

7. The interlocking device of the non-standard charging plug of a lithium battery charger according to claim 6, characterized in that: A clamp is installed on the second fixing bracket, and the clamp fixes the lead-out wire on the male connector to the second fixing bracket.

8. The interlocking device of the non-standard charging plug of a lithium battery charger according to claim 7, characterized in that: A mounting bracket is mounted on the second fixing bracket, and the spring lock and the photoelectric switch are mounted on the mounting bracket.

9. The interlocking device of the non-standard charging plug of a lithium battery charger according to claim 8, characterized in that: A handle hole is provided on the second fixing bracket.

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