CN217589679U - Plug-in structure of LED display device and LED display device - Google Patents

Abstract

The utility model provides a LED display device's grafting structure and LED display device, wherein, LED display device's grafting structure includes: a first power plug assembly; the first power supply plug-in component is arranged in the second seat body, the on-off of the first switch component can control the on-off of the control circuit, the trigger component is movably arranged on the second seat body and can trigger the on-off of the first switch component, and when the first power supply plug-in component is matched with the second power supply plug-in component, the contact conduction of the first conductive component and the second conductive body is prior to the on-off of the first switch component; when the first power supply plug assembly is separated from the second power supply plug assembly, the first switch element is disconnected before the first conductive element and the second conductive element are separated. The technical scheme of the application effectively solves the problem that safety accidents easily occur when the power line in the related art is connected with an external power supply and the display unit is continuously assembled.

Description

Plug-in structure of LED display device and LED display device

Technical Field

The utility model relates to a LED shows technical field, particularly, relates to a LED display device's grafting structure and LED display device.

Background

In the field of LED (Light-Emitting Diode) display technology, an LED display device includes a plurality of display units arranged side by side. When two adjacent display units are assembled, flexible and mutually independent power lines and data lines are generally adopted for connection.

Thus, the power lines are complicated to be wired when connected, and if the power lines are connected to an external power source, a safety accident is easily generated when the display unit is continuously assembled.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a plug structure of a LED display device and a LED display device to solve the problem of safety accidents occurring easily when the power cord and the external power source in the related art are connected and the display unit is assembled.

In order to achieve the above object, according to an aspect of the present invention, there is provided a plugging structure of a LED display device, including: the first power supply plug-in assembly comprises a first base body and a first conductive piece arranged on the first base body; the second power supply plug-in assembly comprises a second seat body, a second conductive piece, a control circuit, a first switch piece, a first driving piece and a trigger piece, wherein the second conductive piece comprises a first conductive body fixedly arranged on the second seat body and a second conductive body movably arranged in the second seat body, the second conductive body is provided with a first conduction position penetrating out of the second seat body and in contact conduction with the first conductive piece and a first disconnection position retracting into the second seat body and separated from the first conductive piece, the first driving piece is movably arranged on the second seat body and can drive the second conductive body to move, the control circuit is connected between the first conductive body and the second conductive body, the first switch piece is arranged in the second seat body, the connection or disconnection of the first switch piece can control the connection or disconnection of the control circuit, and the trigger piece is movably arranged on the second seat body and can trigger the connection or disconnection of the first switch piece, wherein when the first power supply plug-in assembly is matched with the second power supply plug-in assembly, the contact conduction of the first conductive piece and the second conductive body are prior to the connection or disconnection of the first switch piece; when the first power supply plug assembly is separated from the second power supply plug assembly, the first switch element is disconnected before the first conductive element and the second conductive element are separated.

Further, second power grafting subassembly still includes PCB board and relay, and the PCB board sets up in the second pedestal, and control circuit and relay all are located the PCB board, and the relay sets up with control circuit series connection, and first switch spare is established ties between relay and external power source, and first switch spare is closed to control relay switch on control circuit, and first switch spare disconnection is in order to control relay disconnection control circuit.

Furthermore, the first conductor comprises a first input conductor and a second input conductor, the second conductor comprises a first output conductor and a second output conductor, the first input conductor is disconnected from the first output conductor, the second input conductor is disconnected from the second output conductor, and both the first output conductor and the second output conductor can be in conductive contact with the first conductive member; the control circuit comprises a first control conductor and a second control conductor which are connected to the PCB board, the first control conductor is connected between the first input conductor and the first output conductor, and the second control conductor is connected between the second input conductor and the second output conductor; the relay is including parallelly connected first relay and the second relay that sets up, and first relay establishes ties with first control conductor and sets up, and the second relay establishes ties with the second control conductor and sets up, and first switch spare establishes ties between first relay and external power source.

Further, be provided with the mounting hole in the second pedestal, trigger the piece including supporting the ejector pin, support the movably mounting hole of wearing to locate of ejector pin, second electrically conductive piece is still including movably setting up in second pedestal insulation base, the second electric conductor can float and set up in insulation base, first driving piece includes movably the first actuating lever of wearing to locate the second pedestal and can swing and set up the first wane in the second pedestal, the first end butt in the first actuating lever of first wane, the second end butt in insulation base of first wane, the first actuating lever removes and pushes down the first end of first wane, with the swing of drive first wane and drive the second electric conductor with drive insulation base and switch over to the first position of switching on by the first off position, can promote first actuating lever and support the ejector pin through first power plug-in subassembly and remove.

Furthermore, when the first power supply plug-in assembly is spaced from the first driving rod and the abutting rod, the first driving rod is located at a first initial position, and the abutting rod is located at a second initial position; when the second conductor is at the first conduction position, the first driving rod is at the first termination position; when the first switch part is closed, the abutting rod is located at a second termination position, wherein when the first driving rod is located at a first initial position and the abutting rod is located at a second initial position, one end of the first driving rod facing the first seat body protrudes out of one end of the abutting rod facing the first seat body; and/or a first moving stroke of the first driving rod from the first initial position to the first end position is larger than a second moving stroke of the abutting rod from the second initial position to the second end position.

Furthermore, the second power supply plug assembly further comprises a first elastic piece arranged in the mounting hole, and the first elastic piece applies elastic force towards the first seat body to the abutting rod.

Furthermore, the first power supply plug assembly further comprises a first mounting seat arranged at an interval with the first base body, a first force application part movably located in the first mounting seat and a second elastic part arranged in the first mounting seat, the first force application part can push the abutting rod to drive the abutting rod to move, the second elastic part applies elastic force towards the abutting rod to the first force application part, and the first force application part can be in point-surface contact fit with the abutting rod.

Furthermore, the first power supply plug assembly further comprises a second mounting seat arranged at an interval with the first base body, a second force application part movably positioned in the second mounting seat and a third elastic part arranged in the second mounting seat, the second force application part can push the first driving rod to drive the first driving rod to move, the third elastic part applies elastic force towards the first driving part to the second force application part, and the second force application part can be in point-surface contact fit with the first driving part.

Furthermore, the second power supply plug assembly also comprises a fourth elastic element arranged between the second base body and the second conductor, and the fourth elastic element applies elastic force to the second conductor along the direction deviating from the first base body; and/or when the second conductor is in the first conduction position, the second conductor is in point-surface contact fit with the first conductive piece.

Furthermore, the first power supply plug-in assembly also comprises a second switch piece, and the second switch piece can enable the first conductive piece to be in a conducting state or a disconnecting state; and/or the first conducting piece comprises an input folded-sheet conductor and an output folded-sheet conductor which are arranged in the first base body, the input folded-sheet conductor and the output folded-sheet conductor are arranged in a disconnected mode, the second switching piece comprises a connecting conductor arranged in the first base body and an operating key for driving the connecting conductor to move, and when the connecting conductor moves to be matched with the input folded-sheet conductor and the output folded-sheet conductor, the connecting conductor can be conducted through the connecting conductor.

Further, the grafting structure still includes: the first signal plug-in assembly comprises a third seat body and a first signal transmission piece arranged on the third seat body; the second signal plug-in assembly comprises a fourth base body, a second signal transmission piece arranged on the fourth base body and a second driving piece movably arranged on the fourth base body, wherein the second signal transmission piece is provided with a second conduction position penetrating out of the fourth base body and in conduction contact with the first signal transmission piece and a second disconnection position retracting into the fourth base body and separated from the first signal transmission piece, and the second driving piece moves to drive the second signal transmission piece to move towards or away from the first signal transmission piece so that the second signal transmission piece is switched between the second conduction position and the second disconnection position.

Furthermore, the second signal plug-in assembly also comprises a fifth elastic piece arranged between the fourth seat body and the second signal transmission piece, and the fifth elastic piece applies elastic force to the second signal transmission piece along the direction departing from the third seat body; and/or when the second signal transmission piece is positioned at the second conduction position, the second signal transmission piece is in point-surface contact fit with the first signal transmission piece; the second driving piece comprises a second driving rod movably penetrating through the fourth seat body and a second warping plate arranged in the fourth seat body in a swinging mode, a first end of the second warping plate abuts against the second driving rod, a second end of the second warping plate abuts against the second signal transmission piece, and the second driving rod moves to press down the first end of the second warping plate so as to drive the second warping plate to swing and drive the second signal transmission piece to be switched from a second off position to a second on position; the first signal plug-in assembly further comprises a third mounting seat arranged at an interval with the third seat body, a third force application piece movably located in the third mounting seat and a sixth elastic piece arranged in the third mounting seat, the sixth elastic piece applies elastic force towards the second driving piece to the third force application piece, and the third force application piece can be in point-surface contact fit with the second driving piece.

According to the utility model discloses an on the other hand provides a LED display device, including first display element, second display element and grafting structure, first display element and second display element arrange side by side, and the grafting structure is foretell LED display device's grafting structure, and the first power grafting subassembly of grafting structure is installed in the adjacent side department of first display element and second display element, and the second power grafting subassembly of grafting structure is installed in the adjacent side department of second display element and first display element.

According to another aspect of the present invention, there is provided a LED display device, including a first display unit, a second display unit, a third display unit, a fourth display unit and a plug structure, wherein the first display unit, the second display unit, the third display unit and the fourth display unit are arranged in an array and distributed circumferentially in this manner, the plug structure is the plug structure of the LED display device described above, a first power plug component of the plug structure is installed at a side adjacent to the first display unit and the second display unit, a second power plug component of the plug structure is installed at a side adjacent to the second display unit and the first display unit, wherein a first signal plug component of the plug structure is installed at a side adjacent to the first display unit and the second display unit, and a second signal plug component of the plug structure is installed at a side adjacent to the second display unit and the first display unit; and/or the first signal plug assembly of the plug structure is arranged at the adjacent side edge of the first display unit and the fourth display unit, and the second signal plug assembly of the plug structure is arranged at the adjacent side edge of the fourth display unit and the first display unit.

Use the technical scheme of the utility model, LED display device's grafting structure includes: the power supply comprises a first power supply plug-in component and a second power supply plug-in component. The first power supply plug assembly comprises a first base body and a first conductive piece arranged on the first base body. The second power supply plug-in assembly comprises a second base body, a second conductive piece, a control circuit, a first switch piece, a first driving piece and a trigger piece. The first power supply plug-in component of the plug-in structure of the LED display device can be installed on one side edge of two adjacent display units, and the second power supply plug-in component of the plug-in structure of the LED display device can be installed on the other side edge of two adjacent display units. The second conductive member includes a first conductive body fixedly disposed on the second base and a second conductive body movably disposed in the second base. The second conductor has a first conducting position penetrating the second base and contacting the first conducting member and a first disconnecting position retracting into the second base and separating from the first conducting member, and the first driving member is movably disposed on the second base and can drive the second conductor to move. The control circuit is connected between the first conductor and the second conductor. The first switch piece is arranged in the second seat body, the on or off of the first switch piece can control the on or off of the control circuit, the first driving piece is movably arranged on the second seat body and can drive the second conductor to move, and the trigger piece is movably arranged on the second seat body and can trigger the first switch piece to be turned on or turned off. When the first power supply plug-in assembly is matched with the second power supply plug-in assembly in the process of assembling two adjacent display units together, the first driving piece moves to drive the second conductor to move towards the first conductive piece so as to switch the second conductor from the first disconnection position to the first conduction position; in addition, in the process that the second electric conductor is switched from the first disconnection position to the first conduction position, the trigger piece movably triggers the first switch piece to be closed so as to control the control circuit to be conducted, and the second electric conductor is kept at the first conduction position, then the second electric conductor and the first electric conductor can be electrified, and at the moment, the first power supply plug-in component and the second power supply plug-in component are plugged together. In the process, the first conductive member and the second conductive member are in contact conduction before the first switching member is closed, so that the two display units assembled when the first switching member is opened are not electrified, and only the two display units assembled when the first switching member is closed are electrified, thereby reducing the possibility of safety accidents. In the process of detaching two adjacent display units, when the first power plug-in assembly is separated from the second power plug-in assembly, the trigger piece movably triggers the first switch piece to be disconnected so as to control the control circuit to be disconnected, the second electric conductor is not electrified with the first electric conductor, in addition, the first driving piece movably drives the second electric conductor to deviate from the first electric conductor to move, so that the second electric conductor is switched to a first disconnection position from a first conduction position, at the moment, the first power plug-in assembly is separated from the second power plug-in assembly, and the two adjacent display units can be detached. In this process, since the first switching element is turned off prior to the separation of the first conductive element and the second conductive element, the two display units mounted when the first switching element is turned off are not powered, thereby reducing the possibility of safety accidents. Therefore, the technical scheme of the application can solve the problem that safety accidents easily occur when the power line in the related art is connected with an external power supply and the display unit is continuously assembled. And when two adjacent display units are assembled, the first conductive piece and the power line can be electrically connected by oppositely plugging the first power supply plugging component and the second power supply plugging component, so that the wiring operation is simplified, the power line is simple to connect, the two adjacent display units are more convenient to assemble, and the assembly efficiency is improved.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the scope of the invention. In the drawings:

fig. 1 shows a schematic perspective view of an embodiment of an LED display device according to the present invention;

FIG. 2 shows a schematic side view of the LED display device of FIG. 1;

FIG. 3 shows a schematic cross-sectional view A1-A1 of the LED display device of FIG. 2;

FIG. 4 shows a schematic enlarged view of a portion of the LED display device of FIG. 3 at B1;

FIG. 5 shows a schematic enlarged view of a portion of the LED display device of FIG. 4 at B2;

FIG. 6 shows a schematic cross-sectional view A2-A2 of the LED display device of FIG. 2;

FIG. 7 is a schematic view of the LED display device of FIG. 6 at a partial enlargement at B3;

fig. 8 shows a schematic circuit diagram of an embodiment of a plug structure of an LED display device according to the present invention;

FIG. 9 is a schematic perspective view of a second power plug assembly of the plug structure of the LED display device of FIG. 8;

FIG. 10 shows a schematic cross-sectional view of the second power plug assembly of FIG. 8;

FIG. 11 illustrates a front view schematic diagram of a first power plug assembly of the plug structure of the LED display device of FIG. 8;

FIG. 12 shows a schematic cross-sectional view of the first power plug assembly of FIG. 11 from C1-C1;

FIG. 13 shows a side view schematic diagram of the first power plug assembly of FIG. 11;

FIG. 14 shows a schematic cross-sectional view of the first power plug assembly of FIG. 13 from C2-C2;

FIG. 15 is a schematic cross-sectional view of an external power plug plugged into the external power outlet of the first power plug assembly of FIG. 11;

FIG. 16 shows a schematic bottom view of the first power plug assembly of FIG. 11;

FIG. 17 shows a front view schematic of a second signal jack assembly of the jack structure of the LED display device of FIG. 8;

fig. 18 shows a side view schematic of the second signal jack assembly of fig. 17;

FIG. 19 is a schematic cross-sectional view of the second signal jack assembly D1-D1 of FIG. 18;

FIG. 20 is a schematic cross-sectional view of the second signal jack assembly of FIG. 18 from D2-D2;

fig. 21 shows a top schematic view of the second signal jack assembly of fig. 17;

FIG. 22 shows a front view schematic of a first signal jack assembly of the jack structure of the LED display device of FIG. 8;

fig. 23 shows a schematic top view of the first signal jack assembly of fig. 22.

Wherein the figures include the following reference numerals:

10. a first power plug assembly; 11. a first seat body; 12. a first conductive member; 121. an input tab conductor; 122. an output tab conductor; 13. a first force application member; 14. a first mounting seat; 15. a second elastic member; 16. a second mounting seat; 17. a second force application member; 18. a second switching member; 181. an operation key; 19. a third elastic member; 20. a second power plug assembly; 201. a fourth elastic member; 21. a second seat body; 22. a second conductive member; 221. a first electrical conductor; 2211. a first input conductor; 2212. a second input conductor; 222. a second electrical conductor; 2221. a first output conductor; 2222. a second output conductor; 223. an insulating substrate; 23. a control circuit; 231. a first control conductor; 232. a second control conductor; 24. a first switching member; 25. a first driving member; 251. a first drive lever; 252. a first rocker; 26. pushing the ejector rod; 27. a PCB board; 28. a relay; 29. a first elastic member; 281. a first relay; 282. a second relay; 30. a first signal plug assembly; 31. a third seat body; 32. a first signal transmission member; 33. a third force application member; 34. a sixth elastic member; 35. a third mounting seat; 40. a second signal plug assembly; 41. a fourth seat body; 42. a second signal transmission member; 43. a second driving member; 431. a second drive lever; 432. a second rocker; 44. a fifth elastic member; 51. a first display unit; 52. a second display unit; 53. a third display unit; 54. a fourth display unit; 61. an external power supply; 62. an external power plug; l1, a first moving stroke; l2, second movement stroke.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 16, the plugging structure of the LED display device of the present embodiment includes: a first power plug assembly 10 and a second power plug assembly 20. The first power plug assembly 10 includes a first base 11 and a first conductive member 12 disposed on the first base 11. The second power plug assembly 20 includes a second base 21, a second conductive member 22, a control circuit 23, a first switch member 24, a first driving member 25 and a trigger member. The second conductive member 22 includes a first conductive member 221 fixedly disposed on the second base 21 and a second conductive member 222 movably disposed in the second base 21, and the second conductive member 222 has a first conducting position penetrating through the second base 21 and contacting the first conductive member 12 and a first disconnecting position retracting into the second base 21 and separating from the first conductive member 12. The first driving element 25 is movably disposed on the second base 21 and can drive the second conductor 222 to move. The control circuit 23 is connected between the first conductor 221 and the second conductor 222, and the first switch 24 is disposed in the second housing 21. The closing or opening of the first switching element 24 can control the control circuit 23 to be turned on or off. The trigger member is movably disposed on the second base 21 and can trigger the first switch member 24 to be turned on or off, in this embodiment, when the first power plug assembly 10 is mated with the second power plug assembly 20, the first conductive member 12 and the second conductive member 222 are electrically connected in advance of the first switch member 24 being turned on; when the first power plug assembly 10 is separated from the second power plug assembly 20, the first switching member 24 is opened prior to the separation of the first conductive member 12 and the second conductive body 222.

By applying the technical solution of this embodiment, the first power plug assembly 10 of the plug structure of the LED display device can be installed on one side edge of two adjacent display units, and the second power plug assembly 20 of the plug structure of the LED display device can be installed on the other side edge of two adjacent display units. When the first power plug assembly 10 is engaged with the second power plug assembly 20 during the process of assembling two adjacent display units together, the first driving member 25 is activated to drive the second conductive body 222 to move toward the first conductive member 12, so that the second conductive body 222 is switched from the first off position to the first on position; in addition, in the process that the second conductor 222 is switched from the first off position to the first on position, the trigger is movable to trigger the first switch 24 to be closed so as to control the control circuit 23 to be turned on, and the second conductor 222 is kept at the first on position, so that the second conductor 222 and the first conductor 12 can be turned on, and at this time, the first power plug-in component 10 and the second power plug-in component 20 are plugged together. In this process, since the first conductive member 12 and the second conductive member 22 are in contact conduction before the first switching member 24 is closed, the two display units mounted when the first switching member 24 is opened are not energized, and only the two display units mounted when the first switching member 24 is closed are energized, thereby reducing the possibility of safety accidents. In the process of detaching two adjacent display units, when the first power plug-in assembly 10 is separated from the second power plug-in assembly 20, the trigger piece movably triggers the first switch piece 24 to be disconnected so as to control the control circuit 23 to be disconnected, the second conductor 222 is not electrified with the first conductor 12, and the first driving piece 25 movably drives the second conductor 222 to move away from the first conductor 12, so that the second conductor 222 is switched from the first on position to the first off position, at this time, the first power plug-in assembly 10 is separated from the second power plug-in assembly 20, and two adjacent display units can be detached. In this process, since the first switching member 24 is turned off prior to the separation of the first and second conductive members 12 and 22, the two display units mounted when the first switching member 24 is turned off are not powered, thereby reducing the possibility of safety accidents. Therefore, the technical scheme of the embodiment can solve the problem that safety accidents easily occur when the power line is connected with the external power source 61 and the display unit is continuously assembled in the related art. Moreover, when two adjacent display units are assembled, the first conductive piece 12 can be electrically connected with the power line through the mutual insertion of the first power supply plug-in component 10 and the second power supply plug-in component 20, so that the wiring operation is simplified, the power line connection is simple, the assembly of the two adjacent display units is simpler and more convenient, and the assembly efficiency is improved. The adjacent two display units may be the first display unit 51 and the second display unit 52 in fig. 3.

As shown in fig. 1 to 5, 8 to 10, the second power plug assembly 20 further includes a PCB board 27 and a relay 28. The PCB 27 is disposed in the second seat 21, the control circuit 23 and the relay 28 are both disposed on the PCB 27, the relay 28 is disposed in series with the control circuit 23, the first switch 24 is disposed in series between the relay 28 and the external power source 61, the first switch 24 is closed to control the relay 28 to turn on the control circuit 23, and the first switch 24 is opened to control the relay 28 to turn off the control circuit 23. The first switch member 24 is preferably a tact switch. When the current flowing through the control circuit 23 is too large, the coil of the relay 28 is opened, and the control circuit 23 can be protected. The PCB 27 serves as a carrier for the relay 28 and the control circuit 23, so that the second power plug assembly 20 has a compact structure therein and a simple assembly process.

As shown in fig. 1 to 5 and 8 to 10, the first conductor 221 includes a first input conductor 2211 and a second input conductor 2212. Second electrical conductor 222 includes a first output conductor 2221 and a second output conductor 2222. The first input conductor 2211 is provided so as to be separated from the first output conductor 2221, and the second input conductor 2212 is provided so as to be separated from the second output conductor 2222. The first output conductor and the second output conductor 2222 are each capable of conductive contact with the first conductive member 12. The control circuit 23 comprises a first control conductor 231 and a second control conductor 232 connected to the PCB board 27, the first control conductor 231 being connected between the first input conductor 2211 and the first output conductor 2221, the second control conductor 232 being connected between the second input conductor 2212 and the second output conductor 2222. The relay 28 includes a first relay 281 and a second relay 282 arranged in parallel, the first relay 281 being arranged in series with the first control conductor 231, the second relay 282 being arranged in series with the second control conductor 232, and the first switching element 24 being connected in series between the first relay 281 and the external power source 61. In this way, when the first switch 24 is closed, the first relay 281 and the second relay 282 can be simultaneously controlled to be energized with the external power source 61, so as to ensure that the coil of the first relay 281 and the coil of the second relay 282 are both energized and then closed, and further, the control circuit 23 can smoothly conduct the first conductor 221 and the second conductor 222, so as to ensure that the second conductor 222 is energized with the first conductor 12, and after the first power plug-in component 10 and the second power plug-in component 20 are plugged in, two adjacent display units can keep a good energized state.

In this embodiment, when the first switch 24 is closed, the relay 28 can be controlled to turn on the control circuit 23, so that the second conductor 222 and the first conductor 12 can be energized, and if the deenergization phenomenon occurs, it is convenient to detect whether the relay 28, the first switch 24 or the control circuit 23 is qualified in time, so that in the process of assembling two adjacent display units, the components in the second power plug assembly 20 can be detected in time. Similarly, when the first switch 24 is turned off, the relay 28 can be controlled to turn off the control circuit 23, so that the first switch 24 or the relay 28 or the control circuit 23 is detected.

As shown in fig. 4 and fig. 10, the second conductive element 22 further includes an insulating base 223 movably disposed on the second seat 21, and the second conductive element 222 is floatably disposed on the insulating base 223. The first driving element 25 includes a first driving rod 251 movably disposed through the second seat 21 and a first rocker 252 disposed in the second seat 21 in a swinging manner, a first end of the first rocker 252 abuts against the first driving rod 251, a second end of the first rocker 252 abuts against the insulating base 223, and the first driving rod 251 moves to press down the first end of the first rocker 252 so as to drive the first rocker 252 to swing and drive the insulating base 223 to drive the second conductor 222 to switch from the first off position to the first on position.

Specifically, the first electrical conductor 221 includes a first input conductor 2211 and a second input conductor 2212. Second electrical conductor 222 includes a first output conductor 2221 and a second output conductor 2222. The first input conductor 2211 is disconnected from the first output conductor 2221, the second input conductor 2212 is disconnected from the second output conductor 2222, the first output conductor 2221 is a zero line column, the second output conductor 2222 is a fire line column, the second power plug assembly 20 further comprises a grounding column, the fire line column and the grounding column are all parallel to the zero line column, and the zero line column, the fire line column and the grounding column are all arranged on the insulating base 223 at intervals in a penetrating manner. The insulating substrate 223 isolates the neutral, fire and ground posts, avoiding short circuits. The first conductive member 12 includes an input tab conductor 121 and an output tab conductor 122 mounted in the first base 11, and the input tab conductor 121 is disconnected from the output tab conductor 122. The input folded-piece conductor 121 includes a first null wire folded-piece and a first live wire folded-piece, the output folded-piece conductor 122 includes a second null wire folded-piece and a second live wire folded-piece, the first power plug assembly 10 further includes a ground conductor spaced from the second null wire folded-piece, the first driving member 25 is movable to drive the insulating base 223 to move toward the first conductive member 12, so that the null wire column is in contact with the first null wire folded-piece for conduction, the live wire column is in contact with the first live wire folded-piece for conduction, and the ground column is in contact with the ground conductor for conduction.

It should be noted that the second conductor 222 further includes a flexible neutral wire, a flexible live wire and a flexible ground, which are respectively electrically connected to the neutral wire column, the live wire column and the ground column, and the flexible neutral wire, the flexible live wire and the flexible ground can be freely deformed in a telescopic manner, so that the second conductor 222 can move back and forth along with the insulating base 223, and the second conductor 222 can be switched between the first on position and the first off position.

As shown in fig. 4 and 10, in order to prevent the insulating base 223 from deflecting during the movement of the second housing 21, the second power plug assembly 20 further includes a guiding structure disposed between the second housing 21 and the insulating base 223. The guide structure includes a guide hole extending along the moving direction of the insulating base 223 and a guide post capable of being inserted into the guide hole, the guide hole is disposed in the second seat 21, and the guide post is disposed in the insulating base 223. In this way, the guide posts are fixedly connected to the insulating base 223, and in the process that the insulating base 223 moves in the second seat 21, since the guide posts can move in the guide holes along the axes of the guide holes, the insulating base 223 is limited to move only along the axes of the guide holes, so that the insulating base 223 can move smoothly in the second seat 21.

Of course, in the embodiment not shown in the figures, the guiding posts are disposed on the second seat body, and the guiding posts are disposed on the insulating base.

As shown in fig. 1 to 5 and 8 to 10, a mounting hole is provided in the second seat 21, the trigger includes an abutting rod 26, and the abutting rod 26 movably penetrates through the mounting hole. The second conductive element 22 further includes an insulating base 223 movably disposed on the second housing 21, and the second conductive element 222 is floatably disposed on the insulating base 223. The first driving component 25 includes a first driving rod 251 movably disposed through the second seat 21 and a first rocker 252 swingably disposed in the second seat 21, a first end of the first rocker 252 abuts against the first driving rod 251, a second end of the first rocker 252 abuts against the insulating base 223, the first driving rod 251 moves to press down the first end of the first rocker 252 so as to drive the first rocker 252 to swing and drive the insulating base 223 to drive the second conductor 222 to switch from the first off position to the first on position, and the first driving rod 251 and the abutting rod 26 can be pushed to move through the first power plug assembly 10. It is more convenient for the ejector pin 26 to trigger the first switch member 24 to close or open.

The provision of the insulating matrix 223 described above facilitates carrying the second electrical conductor 222. Specifically, the second electrical conductor 222 is completely floating within the insulating base 223 by installation and clearance orientation within the insulating base 223 and spring retention by post springs within the insulating base 223. The second conductor 222 is placed in the insulating base 223, and then the column spring is placed, and then the insulating base 223 is sewn in a riveting closing manner.

As shown in fig. 1 to 5 and 8 to 10, the first driving rod 251 and the first rocker 252 are driven and matched to resemble a lever principle, so that the first driving member 25 drives the second conductor 222 to move, which is more labor-saving. In order to enable the second conductor 222 to move more smoothly, the number of the first driving elements 25 and the number of the second force application elements 17 (see below) are two, the two first driving elements 25 and the two second force application elements 17 are abutted one to one, and the two first driving elements 25 are respectively located on two sides of the second conductor 222. Of course, in the embodiment not shown in the drawings, the number of the first driving member and the second force application member may not be limited to two, but may be one, three, and more.

In this embodiment, the first tilting plate 252 includes a first plate section, a rotating shaft and a second plate section, which are connected in sequence, an obtuse included angle is formed between the first plate section and the second plate section, the rotating shaft is rotatably disposed in the second seat 21, the first plate section abuts against the first driving rod, and the second plate section abuts against the second conductor 222. The second seat body 21 comprises a seat body base body and a bottom plate covered on the seat body base body, a first arc-shaped concave portion is arranged in the seat body base body, a second arc-shaped concave portion is arranged on the surface, facing the first arc-shaped concave portion, of the bottom plate, and the rotating shaft is clamped between the first arc-shaped concave portion and the second arc-shaped concave portion. Like this, first arc concave part and second arc concave part all cooperate with the side surface of pivot, avoid first wane 252 to rock around the axis swing in-process of pivot to make first wane 252 swing more steady, can improve wobbling sensitivity, and then make the easy driven second conductor 222 of first wane 252 remove.

Specifically, the insulating base 223 includes a base block and first and second bumps disposed on opposite sides of the base block. The first tilting plates 252 are two, the second segment of one first tilting plate 252 abuts against the lower surface of the first protrusion, and the second segment of the other first tilting plate 252 abuts against the lower surface of the second protrusion.

As shown in fig. 1 to 5 and 8 to 10, when the first power plug assembly 10 is spaced apart from the first driving rod 251 and the abutting rod 26, the first driving rod 251 is located at a first initial position, and the abutting rod 26 is located at a second initial position. When the second conductor 222 is in the first conducting position, the first driving rod 251 is in the first end position. When the first switch member 24 is closed, the abutting lever 26 is in the second end position. The first switch member 24 is closed prior to the first conductive member 12 and the second conductive member 222 making contact when the first power plug assembly 10 is mated with the second power plug assembly 20; when the first power plug assembly 10 is separated from the second power plug assembly 20, the first conductor 12 and the second conductor 222 are separated prior to the first switching member 24 being opened. When the first driving rod 251 is located at the first initial position and the abutting rod 26 is located at the second initial position, one end of the first driving rod 251 facing the first seat 11 protrudes out of one end of the abutting rod 26 facing the first seat 11. A first moving stroke L1 of the first driving rod 251 from the first initial position to the first end position is greater than a second moving stroke L2 of the abutting rod 26 from the second initial position to the second end position.

Of course, in the embodiment not shown in the drawings, one end of the first driving rod facing the first seat body protrudes out of one end of the supporting rod facing the first seat body. Or the first moving stroke L1 of the first driving rod from the first initial position to the first end position is larger than the second moving stroke L2 of the abutting rod from the second initial position to the second end position.

As shown in fig. 1 to 5 and 8 to 10, the second power plug assembly 20 further includes a first elastic member 29 disposed in the mounting hole, and the first elastic member 29 applies an elastic force to the abutting rod 26 toward the first seat 11. When the first power plug assembly 10 is separated from the second power plug assembly 20, the propping rod 26 can automatically return under the action of the elastic force applied by the first elastic member 29 to the propping rod 26, and the propping rod 26 can float in the first seat 11.

As shown in fig. 1 to 5 and 8 to 10, the first power plug assembly 10 further includes a first mounting seat 14 spaced apart from the first base 11, a first force applying member 13 movably disposed in the first mounting seat 14, and a second elastic member 15 disposed in the first mounting seat 14. The first force application member 13 can push the abutting rod 26 to drive the abutting rod 26 to move, and the second elastic member 15 applies elastic force to the first force application member 13 towards the abutting rod 26. Thus, under the action of the elastic force of the second elastic element 15, the first force applying element 13 can float in the first mounting seat 14 along the Y-axis direction in fig. 4, and in the process that the second conductive body 222 moves from the first off position to the first on position, because the second elastic element 15 applies the elastic force toward the abutting rod 26 to the first force applying element 13, the first force applying element 13 always presses the abutting rod 26 downward, so that the abutting rod 26 is clamped between the first switch element 24 and the first force applying element 13, and the first force applying element 13 pushes the abutting rod 26 to make the abutting rod 26 quickly push the first switch element 24 to be closed or opened. After the two adjacent display units are detached, the first force application piece 13 can be retracted into the first mounting seat 14 after being collided, so that the first force application piece 13 can be prevented from penetrating out of the first mounting seat 14 to generate interference.

As shown in fig. 1 to 5 and 8 to 10, the first force application member 13 can be in surface-to-surface contact fit with the abutting rod 26. It should be noted that, the first force applying component 13 can be in point-surface contact with the abutting rod 26, which means that one end of the first force applying component 13 facing the abutting rod 26 has a first spherical surface, one end of the abutting rod 26 facing the first force applying component 13 has a first plane or a first concave arc surface, and a contact manner between the first spherical surface and the first plane or the first concave arc surface is point-surface contact. The first spherical surface protrudes from the surface of the first seat body 11 facing the second seat body 21, the second seat body 21 is further provided with a first avoidance hole for avoiding the abutting rod 26, the surface of the side of the display unit facing the first seat body 11 is provided with a first avoidance concave arc surface for avoiding the first spherical surface, the first avoidance hole is located in the first avoidance concave arc surface, when the second conductor 222 is located at the first disconnection position, one end of the abutting rod 26 with the first plane extends into the first avoidance concave arc surface, and the first plane is lower than or parallel to the surface of the side of the display unit facing the first seat body 11.

The second elastic member 15 is a spring or an elastic body. The first force application member 13 is preferably a first force application rod. The first power plug-in assembly 10 further includes a first stop ring disposed at the mouth of the first mounting seat 14, a second stop ring matched with the first stop ring is disposed on the sidewall of the first force application rod, and the first spherical surface can penetrate through the first mounting seat 14 through the central hole of the first stop ring. Gap orientation is carried out through the first mounting seat 14 and the second stopping ring, elastic force limitation is synchronously carried out through the second elastic piece 15, the elastic force of the second elastic piece 15 is enabled to be pressed down through the second stopping ring and tail gap orientation of the first force application rod is guaranteed, and the first force application rod completely floats in the first mounting seat 14.

As shown in fig. 1 to 5 and 8 to 10, the first power plug assembly 10 further includes a second mounting seat 16 spaced from the first base 11, a second force applying member 17 movably disposed in the second mounting seat 16, and a third elastic member 19 disposed in the second mounting seat 16. The second force application member 17 can push against the first driving rod 251 to drive the first driving rod 251 to move, and the third elastic member 19 applies an elastic force to the second force application member 17 toward the first driving member 25. Thus, under the action of the elastic force of the third elastic member 19, the second force application member 17 can float in the first mounting seat 14 along the Y-axis direction in fig. 4, and in the process that the second conductor 222 moves from the first off position to the first on position, because the third elastic member 19 applies the elastic force toward the first driving rod 251 to the second force application member 17, the second force application member 17 always presses the first driving rod 251 downward, so that the first driving rod 251 is sandwiched between the first rocker 252 and the second force application member 17, and after the second force application member 17 pushes against the first driving rod 251, the first driving rod 251 quickly pushes the first end of the first rocker 252 to swing around the rotating shaft thereof. After the two adjacent display units are detached and the second force application member 17 is collided, the second force application member can be retracted into the first mounting seat 14 to avoid the interference caused by the second force application member 17 penetrating the first mounting seat 14.

As shown in fig. 4, 5, and 8 to 10, the second force application member 17 can be in point-surface contact engagement with the first driving member 25. It should be noted that the second force application member 17 can be in point-surface contact with the first driving rod 251, that is, one end of the second force application member 17 facing the first driving rod 251 has a second spherical surface, one end of the first driving rod 251 facing the second force application member 17 has a second plane or a second concave arc surface, and a contact manner between the second spherical surface and the second plane or the second concave arc surface is point-surface contact. The second spherical surface protrudes from the surface of the first seat body 11 facing the second seat body 21, the second seat body 21 is further provided with a second avoidance hole for avoiding the first driving rod 251, the surface of the side edge of the display unit facing the first seat body 11 is provided with a second avoidance inner concave arc surface for avoiding the second spherical surface, the second avoidance hole is located in the second avoidance inner concave arc surface, when the second conductor 222 is located at the first disconnection position, one end of the first driving rod 251 with the second plane extends into the second avoidance inner concave arc surface, and the second plane is lower than or parallel to the surface of the side edge of the display unit facing the first seat body 11.

The third elastic member 19 is a spring or an elastic body. The second force application member 17 is preferably a second force application rod. The first power plug-in assembly 10 further includes a third stop ring disposed at the mouth of the second mounting seat 16, a fourth stop ring matched with the third stop ring is disposed on the sidewall of the second force application rod, and the second spherical surface can penetrate through the second mounting seat 16 through the central hole of the third stop ring. Gap orientation is carried out through the second mounting seat 16 and the fourth stopping ring, elastic force limitation is synchronously carried out through the third elastic piece 19, the elastic force of the third elastic piece 19 is guaranteed to be pressed down through the fourth stopping ring and tail gap orientation of the second force application rod is guaranteed, and the second force application rod completely floats in the second mounting seat 16.

As shown in fig. 4, 5, 8 to 10, the second power plug assembly 20 further includes a fourth elastic member 201 disposed between the second seat 21 and the second conductor 222, and the fourth elastic member 201 applies an elastic force to the second conductor 222 along a direction away from the first seat 11. Thus, under the action of the elastic force of the fourth elastic element 201, the second conductor 222 can float in the second seat 21 along the Y-axis direction of fig. 4, and in the process that the second conductor 222 moves from the first on position to the first off position, the fourth elastic element 201 applies the elastic force to the second conductor 222 along the direction away from the first seat 11, so that the second conductor 222 is quickly separated from the first conductor 12. After the two adjacent display units are detached, the second conductor 222 can be kept at the first disconnection position, so that the second conductor 222 is prevented from penetrating through the second base 21 to be damaged or generate interference. The fourth elastic member 201 is a spring or an elastic body, and when the fourth elastic member 201 is a spring, the spring may preferably be a compression spring, and the compression spring is installed above the insulating base, but of course, in an embodiment not shown in the drawings, the spring may preferably be a tension spring, and the tension spring is installed below the insulating base.

In this embodiment, a third avoiding hole for avoiding the second conductor 222 is formed in the second seat 21, a first assembling hole for installing the fourth elastic element 201 is formed in the second seat 21, and the first assembling hole and the third avoiding hole are communicated with each other.

As shown in fig. 4, 5, 8 to 10, when the second conductive member 222 is at the first conductive position, the second conductive member 222 is in point-surface contact with the first conductive member 12. It should be noted that the point-to-surface contact between the second conductor 222 and the first conductor 12 means that one end of the second conductor 222 facing the input tab conductor 121 has a third spherical surface, one end of the input tab conductor 121 facing the second conductor 222 has a third plane or a third concave arc surface, and the contact manner between the third spherical surface and the third plane or the third concave arc surface is point-to-surface contact. During the process of assembling two adjacent display units together, the second conductor 222 with the third spherical surface smoothly passes through the second base 21 to be in point-plane contact with the input flap conductor 121 with the third plane, so that the second conductor 222 is in the first conducting position. During the process of detaching two adjacent display units, the second conductor 222 with the third spherical surface is smoothly retracted into the second seat 21 to be separated from the input flap conductor 121 with the third plane, so that the second conductor 222 is in the first open position.

Specifically, the second seat 21 is provided with a third avoiding hole for avoiding the second conductor 222, and in the process that two adjacent display units are assembled together and the second conductor 222 moves from the first off position to the first on position, after a part of the third spherical surface of the second conductor 222 is in sliding contact with the hole wall of the third avoiding hole, the moving direction of the second conductor 222 is rapidly adjusted, so that the axis of the second conductor 222 is parallel to the axis of the third avoiding hole, and the second conductor 222 can smoothly pass through the third avoiding hole and penetrate out of the second seat 21 to be in point-surface contact fit with the input folding conductor 121.

Of course, in an embodiment not shown in the drawings, the second power plug assembly further includes a fourth elastic element disposed between the second seat and the second conductor, and the fourth elastic element applies an elastic force to the second conductor in a direction away from the first seat. Or when the second conductor is at the first conduction position, the second conductor is in point-surface contact fit with the first conductive piece.

As shown in fig. 4, 5, 8 to 10, in the process of assembling two adjacent display units together, when the first power plug assembly 10 is mated with the second power plug assembly 20, the second force application member 17 pushes the first driving rod 251 to move downward and push the first end of the first rocker 252 to swing around the swing axis of the first rocker 252, and the second end of the first rocker 252 swings around the swing axis of the first rocker 252 and pushes the second conductor 222 upward and move toward the first conductor 12, at this time, the first driving rod 251 passes through the first moving stroke L1 to switch the second conductor 222 from the first off position to the first on position; in addition, in the process of switching the second electric conductor 222 from the first off position to the first on position, the first force application member 13 pushes the abutting rod 26 downward to move downward, the abutting rod 26 pushes the first switch member 24 to close, the first relay 281 and the second relay 282 are both in conduction connection with the external power source 61 to control the coil of the first relay 281 and the coil of the second relay 282 to be closed after being energized, at this time, the first control conductor 231 is in conduction connection with the first input conductor 2211 and the first output conductor 2221, the second control conductor 232 is in conduction connection with the second input conductor 2212 and the second output conductor 2222, the second electric conductor 222 is kept at the first on position, and then the abutting rod 26 passes through the second moving stroke L2 to enable the second electric conductor 222 and the first electric conductor 22212 to be energized, at this time, the first power plug assembly 10 and the second power plug assembly 20 are plugged together. In this process, since the first conductive member 12 and the second conductive member 22 are in contact conduction before the first switching member 24 is closed, the two display units mounted when the first switching member 24 is opened are not energized, and only the two display units mounted when the first switching member 24 is closed are energized, thereby reducing the possibility of safety accidents.

As shown in fig. 4, 5, 8 to 10, during the process of detaching two adjacent display units, when the first power plug assembly 10 is separated from the second power plug assembly 20, the acting force applied to the abutting rod 26 by the first force applying member 13 and the acting force applied to the first driving rod 251 by the second force applying member 17 are gradually reduced, the abutting rod 26 is reset upward by the action of the elastic force applied by the second elastic member 15, the first switch 24 is switched from the closed state to the open state after losing the trigger force, the first relay 281 and the second relay 282 are both disconnected from the external power source 61 to control the coil of the first relay 281 and the coil of the second relay 282 to be disconnected after losing power, the first control conductor 231 is disconnected from the first input conductor 2211 and the first output conductor 2221, the second control conductor 232 is disconnected from the second input conductor 2212 and the second output conductor 2222, and the second control conductor 2212 is disconnected from the first input conductor 2212 and the second output conductor 2222, and the second control conductor 231 is disconnected from the second input conductor 2212 and the second output conductor 2222 because the second control conductor 231 is disconnected from the first input conductor 2212 and the second control conductor 252 is pushed upward by the first end of the first end stroke L2 and the second end of the first end of the rocker arm 222, the rocker arm 222 is pushed by the first end of the second end of the rocker arm 252 to the rocker arm 252, the rocker arm 222, the second conductor 222 is switched from the first on position to the first off position, and the first power plug assembly 10 and the second power plug assembly 20 are separated, so that the two adjacent display units can be separated.

As shown in fig. 4, 5, and 8 to 10, in the process that two adjacent display units are assembled together and the second conductor 222 moves from the first off position to the first on position, the second spherical surface of the second force application member 17 can directly contact and cooperate with the second planar surface of the first driving rod 251, or the second spherical surface of the second force application member 17 moves on the side of the display unit toward the surface of the first base 11 and smoothly slides into the second avoidance concave arc surface to contact and cooperate with the second planar surface of the first driving rod 251, so that the first driving rod 251 moves downward relative to the first base 11 and presses down the first end of the first rocker 252, so that the first end of the first rocker 252 swings around its rotation axis, and the second end of the first rocker 252 pushes the second conductor 222 to move upward relative to the second base 21, so that the second conductor 222 is in the first on position; and the first spherical surface of the first force applying part 13 can directly contact and cooperate with the first plane of the abutting rod 26, or the first spherical surface of the first force applying part 13 moves on the surface of the side edge of the display unit facing the first seat 11 and smoothly slides into the first avoidance concave arc surface to contact and cooperate with the first plane of the abutting rod 26, so that the abutting rod 26 moves downward relative to the first seat 11 and presses the first switch 24 downward, so that the first switch 24 is closed to control the relay 28 to conduct the control circuit 23.

As shown in fig. 4, 5, and 8 to 10, in the process that two adjacent display units are detached and the second conductor 222 moves from the first on position to the first off position, a part of the first spherical surface of the first force application member 13 slides on the first avoiding concave arc surface and gradually separates from the first plane of the abutting rod 26, and the first spherical surface of the first force application member 13 can be quickly retracted into the first installation seat 14 to avoid interference with the second seat 21 when being collided, so as to improve the smoothness of the detachment process. After the upward pushing force applied by the first elastic member 29, the end of the abutting rod 26 with the first plane extends into the first avoidance concave arc surface again. And a part of the second spherical surface of the second force application member 17 slides on the second avoidance concave arc surface and is gradually separated from the second plane of the first driving rod 251, and the second spherical surface of the second force application member 17 can be quickly retracted into the second mounting seat 16 to avoid interference with the second seat body 21 when being collided, so that the smoothness of the dismounting process is improved. After the first driving rod 251 pushes upward at the first end of the first rocker 252, the end of the first driving rod 251 with the second plane extends into the second avoiding concave arc again. Meanwhile, the second conductor 222 with the first spherical surface is smoothly retracted into the second seat 21 to be separated from the input flap conductor 121 with the third plane, so that the second conductor 222 is in the first open position.

In the process of assembling the two adjacent display units, the second conductor 222 can float in the second seat 21 along the Y-axis direction of fig. 4, and the second conductor 222 can smoothly perform point-surface contact with the first conductive member 12; the second force application member 17 can float in the second mounting seat 16 along the Y-axis direction in fig. 4, and the second force application member 17 can smoothly perform point-surface contact engagement with the first driving rod 251; the first force application member 13 can float in the first mounting seat 14 in the Y-axis direction of fig. 4, and the first force application member 13 can smoothly engage with the abutting rod 26 in point-surface contact. Thus, there is no interference between the second power plug assembly 20 and the first power plug assembly 10, and the second power plug assembly 20 can be quickly inserted into the first power plug assembly 10. Also, the second power plug assembly 20 can be quickly separated from the first power plug assembly 10 during the above-described detachment of the adjacent two display units. In this way, the second power plug assembly 20 and the first power plug assembly 10 can be automatically connected, so that the power supplies on the two display units can be automatically and electrically connected, the second power plug assembly 20 does not need to be manually plugged and pulled by a field worker, and the field worker can conveniently assemble or disassemble the two display units along the Y-axis direction of fig. 4.

As shown in fig. 4, 5, 8, 11 to 16, the first power plug assembly 10 further comprises a second switching element 18, the second switching element 18 being capable of putting the first conductive element 12 itself in a conducting state or in a disconnecting state. The second switch member 18 is preferably a boat type switch. When the first conductive member 12 is connected to an external power source and the display unit is continuously assembled, the first conductive member 12 can be in an off state through the second switch member 18, so that the assembled display unit is not electrified, and the plugging structure is controlled through the double switches of the first switch member 24 and the second switch member 18, thereby further reducing the possibility of safety accidents.

As shown in fig. 4, 5, 8, 11 to 15, in order to facilitate the external power plug 62 to be plugged into the first power plug assembly 10, the first power plug assembly 10 further includes an external socket electrically connected to the first conductive member 12. In this way, the external power plug 62 can be inserted into the external socket to achieve contact conduction, and the first conductive member 12 and the external power source can be connected.

Specifically, the external power plug 62 includes a power external wire copper pin, and the first power plug assembly 10 further includes a power crown spring in plug contact engagement with the power external wire copper pin.

As shown in fig. 4, 8, 14 and 16, the first conductive member 12 includes an input tab conductor 121 and an output tab conductor 122 installed in the first seat 11, and the input tab conductor 121 is disconnected from the output tab conductor 122. The second switch member 18 includes a connecting conductor disposed in the first housing 11 and an operation key 181 for driving the connecting conductor to move, and the connecting conductor can conduct electricity through the connecting conductor when the connecting conductor moves to match with the input flap conductor 121 and the output flap conductor 122. When the connecting conductor moves to be separated from the input and output tab conductors 121 and 122, respectively, the input and output tab conductors 121 and 122 are disconnected from each other, so that the first conductive member 12 is in a disconnected state. And because the input tab conductors 121 and the output tab conductors 122 are stamped parts, they can be easily bent to fit inside the first base 11, and the second electrical conductors 222 penetrate through the second base 21 to be in contact with the input tab conductors 121. Because input folded-sheet conductor 121 and output folded-sheet conductor 122 are stamping parts, it is easy to machine and form, and is suitable for mass production. And make first power plug-in components 10 overall structure simple, the assembly process of being convenient for more, and then can reduction in production cost, it is also more convenient to maintain first power plug-in components 10 in the later stage.

Specifically, the input tab conductor 121 includes a first neutral tab and a first live tab installed in the first body 11, the output tab conductor 122 includes a second neutral tab and a second live tab installed in the first body 11, and the connecting conductor of the second switching element 18 includes a neutral connecting conductor and a live connecting conductor, which are connected through the neutral connecting conductor when the neutral connecting conductor is moved to fit the first neutral tab and the second neutral tab, and connected through the live connecting conductor when the live connecting conductor is moved to fit the first live tab and the second live tab.

Further, one end of the first neutral wire folded piece facing the second base body 21 penetrates through the first base body 11 to form a neutral wire terminal, the neutral wire terminal is bent and attached to one side surface of the first base body 11 facing the second base body 21, one end of the second live wire folded piece facing the second base body 21 penetrates through the first base body 11 to form a live wire terminal, the live wire terminal is bent and attached to one side surface of the first base body 11 facing the second base body 21, when the second conductive piece 22 is located at the first conduction position, the neutral wire column of the second conductive piece 22 is in point-surface contact fit with the neutral wire terminal of the first conductive piece 12, and the live wire column of the second conductive piece 22 is in point-surface contact fit with the live wire terminal of the first conductive piece 12.

Of course, in an embodiment not shown in the figures, the first power plug assembly further comprises a second switching element capable of putting the first conductive element itself in a conducting state or in an off state. Or the first conductive piece comprises an input folded-sheet conductor and an output folded-sheet conductor which are arranged in the first base body, the input folded-sheet conductor and the output folded-sheet conductor are disconnected, the second switch piece comprises a connecting conductor arranged in the first base body and an operating key for driving the connecting conductor to move, and when the connecting conductor moves to be matched with the input folded-sheet conductor and the output folded-sheet conductor, the connecting conductor can be conducted with the input folded-sheet conductor and the output folded-sheet conductor through the connecting conductor.

As shown in fig. 1 to 7 and 17 to 23, the insertion structure further includes: a first signal jack module 30 and a second signal jack module 40. The first signal plug assembly 30 includes a third housing 31 and a first signal transmission member 32 disposed on the third housing 31. The second signal plug assembly 40 includes a fourth base 41, a second signal transmission member 42 disposed on the fourth base 41, and a second driving member 43 movably disposed on the fourth base 41. The second signal transmission member 42 has a second on position penetrating through the fourth seat 41 and in conductive contact with the first signal transmission member 32 and a second off position retracted into the fourth seat 41 and separated from the first signal transmission member 32, and the second driving member 43 is movable to drive the second signal transmission member 42 to move toward or away from the first signal transmission member 32 so as to switch the second signal transmission member 42 between the second on position and the second off position.

In this embodiment, the first signal plug assembly 30 of the plug structure of the LED display device may be mounted on one side edge of two adjacent display units, and the second signal plug assembly 40 of the plug structure of the LED display device may be mounted on the other side edge of two adjacent display units. When two adjacent display units are assembled together, the second driving member 43 is activated to drive the second signal transmission member 42 to move toward the first signal transmission member 32 so as to switch the second signal transmission member 42 to the second conducting position, and the first signal plug assembly 30 and the second signal plug assembly 40 are plugged together. Like this, when two adjacent display element assemblies, through first power grafting subassembly 10 and second power grafting subassembly 20 to inserting make two adjacent display element realize the circular telegram, through the first signal grafting subassembly 30 and the second signal grafting subassembly 40 to inserting make two adjacent display element realize signal transmission, simplified the wiring operation for the connection of power cord and signal line is all simple, and two adjacent display element assemblies are more simple and convenient, have promoted assembly efficiency. The adjacent two display units may be the first display unit 51 and the fourth display unit 54 in fig. 6.

As shown in fig. 7 and 19 to 21, the second signal plug assembly 40 further includes a fifth elastic member 44 disposed between the fourth housing 41 and the second signal transmission member 42, and the fifth elastic member 44 applies an elastic force to the second signal transmission member 42 in a direction away from the third housing 31. Thus, under the elastic force of the fifth elastic element 44, the second signal transmission element 42 can float in the fourth seat 41 along the X-axis direction of fig. 7, and in the process that the second signal transmission element 42 moves from the second on position to the second off position, the fifth elastic element 44 applies the elastic force to the second signal transmission element 42 along the direction departing from the third seat 31, so that the second signal transmission element 42 is rapidly separated from the first signal transmission element 32. And after two adjacent display units are disassembled, the second signal transmission member 42 can be kept at the second disconnected position, so that the second signal transmission member 42 is prevented from penetrating through the fourth seat body 41 to be damaged or generate interference. The fifth elastic member 44 is a spring or an elastic body, and when the fifth elastic member 44 is a spring, the spring may preferably be a compression spring, and the compression spring in fig. 20 is installed above the insulating body (see below), but of course, in an embodiment not shown in the drawings, the spring may preferably be a tension spring, and the tension spring is installed below the insulating body.

In this embodiment, a fourth avoiding hole for avoiding the signal needle is formed in the fourth seat 41, and a second assembling hole for installing the fifth elastic element 44 is formed in the fourth seat 41. A guiding structure is provided between the fourth seat 41 and the insulating body, and the guiding structure is the same as the guiding structure between the second seat 21 and the insulating base 223.

As shown in fig. 7 and 19 to 21, the first signal transmission member 32 includes a first signal PCB, and a surface of the first signal PCB facing the second signal transmission member 42 is a gold-plated surface. The second signal transmission member 42 includes an insulation body movably disposed on the fourth base 41 and a signal pin disposed in the insulation body. The signal pin is floatably disposed with respect to the insulative body in a moving direction of the insulative body. The second driving member 43 is movable to drive the insulating body to move toward the first signal transmission member 32, so that the signal pin is in contact with and conducted with the first signal transmission member 32. The second driving member 43 is movable to drive the insulative housing to move away from the first signal transmission member 32, so as to separate the signal pin from the first signal transmission member 32. The fourth housing 41 includes a housing and a cover plate covering the opening of the housing, and a part of the second signal transmission member 42 and a part of the second driving member 43 are located in the housing. The signal pin is arranged in the insulating body through the signal spring.

In this embodiment, the second signal plug assembly 40 further includes a flexible circuit plug penetrating through the fourth base 41, the second signal transmission member 42 further includes a second signal PCB, the second signal PCB is disposed on a side of the insulation body deviating from the first signal transmission member 32, the signal pin is electrically connected to the second signal PCB, a PCB socket is disposed on a side of the second signal PCB away from the insulation body, the flexible circuit plug is in plug-in contact with the PCB socket, and the flexible circuit plug can be electrically connected to the signal pin through the second signal PCB. Because the flexible circuit plug can stretch out and draw back and deform, the second driving piece 43 can move in the fourth seat 41 under the driving of the insulating body, and then the signal pin can move along with the insulating body.

As shown in fig. 7 and 19 to 21, when the second signal transmission member 42 is at the second conduction position, the second signal transmission member 42 is in point-surface contact with the first signal transmission member 32. It should be noted that the point-surface contact matching between the second signal transmission member 42 and the first signal transmission member 32 means that the end of the signal pin of the second signal transmission member 42 facing the first signal PCB has a fourth spherical surface, the gold immersion surface of the first signal PCB faces the end of the signal pin, and the contact manner between the fourth spherical surface and the gold immersion surface is point-surface contact. In the process of assembling two adjacent display units together, the signal pin with the fourth spherical surface smoothly passes through the fourth base 41 to be in point-surface contact fit with the first signal PCB board with a gold sinking surface, so that the second signal transmission member 42 is in the second conduction position. During the process of detaching two adjacent display units, the signal pin with the fourth spherical surface is smoothly retracted into the fourth seat 41 to be separated from the first signal PCB board with the gold-sinking surface, so that the second signal transmission member 42 is in the second disconnected position.

Specifically, a fourth avoiding hole for avoiding the signal pin is formed in the fourth seat 41, and when two adjacent display units are assembled together and the second signal transmission member 42 moves from the second off position to the second on position, a part of a fourth spherical surface of the signal pin makes sliding contact with a hole wall of the fourth avoiding hole, the moving direction of the signal pin is rapidly adjusted, so that the axis of the signal pin is parallel to the axis of the fourth avoiding hole, and the signal pin can smoothly penetrate out of the fourth seat 41 through the fourth avoiding hole to be in point-surface contact fit with the first signal PCB board.

Of course, in the embodiment not shown in the drawings, the second signal plug assembly further includes a fifth elastic element disposed between the fourth seat and the second signal transmission element, and the fifth elastic element applies an elastic force to the second signal transmission element in a direction away from the third seat. Or when the second signal transmission piece is positioned at the second conduction position, the second signal transmission piece is in point-surface contact fit with the first signal transmission piece;

as shown in fig. 7 and 19 to 21, the second driving element 43 includes a second driving rod 431 movably disposed through the fourth seat 41 and a second tilting plate 432 swingably disposed in the fourth seat 41, a first end of the second tilting plate 432 abuts against the second driving rod 431, a second end of the second tilting plate 432 abuts against the second signal transmission element 42, and the second driving rod 431 moves to press a first end of the second tilting plate 432, so as to drive the second tilting plate 432 to swing and to drive the second signal transmission element 42 to switch from the second off position to the second on position.

In this embodiment, the second driving rod 431 and the second rocker 432 are driven and matched by a lever-like principle, so that the second driving member 43 drives the second signal transmission member 42 to move, which is more labor-saving. In order to enable the second signal transmission member 42 to move more smoothly, two second driving members 43 and two third force application members 33 (see below) are provided, the two second driving members 43 and the two third force application members 33 are in one-to-one abutting arrangement, and the two second driving members 43 are respectively located at two sides of the second signal transmission member 42. Of course, in the embodiment not shown in the drawings, the number of the second driving member and the third force application member may not be limited to two, but may be one, three, and more.

As shown in fig. 7 and 19 to 21, the first signal plug assembly 30 further includes a third mounting seat 35 spaced apart from the third seat 31, a third force application member 33 movably located in the third mounting seat 35, and a sixth elastic member 34 disposed in the third mounting seat 35, wherein the sixth elastic member 34 applies an elastic force to the third force application member 33 toward the second driving member 43. Thus, the third force application member 33 can float in the third mounting seat 35 along the X-axis direction of fig. 7 under the action of the elastic force of the sixth elastic member 34, and in the process of moving the second signal transmission member 42 from the second off position to the second on position, the sixth elastic member 34 applies the elastic force toward the second driving rod 431 to the third force application member 33, so that the third force application member 33 always presses the second driving rod 431 down, so that the second driving rod 431 is sandwiched between the second rocker 432 and the third force application member 33, and after the third force application member 33 pushes the second driving rod 431, the second driving rod 431 quickly pushes the first end of the second rocker 432 to swing around the swing axis. After the adjacent two display units are detached and the third force application member 33 is collided, the third force application member 33 can be retracted into the third mounting seat 35 to avoid interference caused by the third force application member 33 penetrating through the third mounting seat 35.

As shown in fig. 7 and 19 to 21, the third force application member 33 can be in point-surface contact with the second driving member 43. It should be noted that the third force application member 33 can be in point-surface contact with the second driving rod 431, that is, one end of the third force application member 33 facing the second driving rod 431 has a fifth spherical surface, one end of the second driving rod 431 facing the third force application member 33 has a fourth plane or a fourth concave arc surface, and a contact manner between the fifth spherical surface and the fourth plane or the fourth concave arc surface is point-surface contact. The fifth spherical surface protrudes from the surface of the gold immersion surface of the first signal PCB toward the fourth seat body 41, a fifth avoiding hole for avoiding the second driving rod 431 is further formed in the fourth seat body 41, a third avoiding concave arc surface for avoiding the fifth spherical surface is formed in the surface of the side edge of the display unit, which faces the gold immersion surface of the first signal PCB, the fifth avoiding hole is located in the third avoiding concave arc surface, when the second signal transmission member 42 is located at the second disconnection position, one end of the second driving rod 431 with the fourth plane extends into the third avoiding concave arc surface, and the fourth plane is lower than or parallel to the surface of the side edge of the display unit, which faces the gold immersion surface of the first signal PCB.

The sixth elastic member 34 is a spring or an elastic body. The third force application member 33 is preferably a third force application rod. The first signal plug-in assembly 30 further includes a fifth stop ring disposed at the opening of the third mounting seat 35, a sixth stop ring matched with the fifth stop ring is disposed on the sidewall of the third force applying rod, and the fifth spherical surface can penetrate through the third mounting seat 35 through the center hole of the fifth stop ring.

As shown in fig. 7 and 19 to 21, in the process that two adjacent display units are assembled together and the second signal transmission member 42 moves from the second off position to the second on position, the fifth spherical surface of the third force application member 33 can directly contact and cooperate with the fourth plane of the second driving rod 431 in a point-to-surface manner, or the fifth spherical surface of the third force application member 33 moves on the surface of the fourth seat 41 facing the gold depression surface of the first signal PCB and smoothly slides into the third escape concave arc surface to contact and cooperate with the fourth plane of the second driving rod 431 in a point-to-surface manner, so that the second driving rod 431 moves leftward relative to the gold depression surface of the first signal PCB and presses down the first end of the second rocker 432, so that the first end of the second rocker 432 swings around its rotation axis, and the second end of the second rocker 432 pushes the second signal transmission member 42 to move rightward relative to the fourth seat 41, so that the second signal transmission member 42 is in the second on position.

As shown in fig. 7 and 19 to 21, in the process that two adjacent display units are detached and the second signal transmission member 42 moves from the second on position to the second off position, a part of the fifth spherical surface of the third force application member 33 slides on the third avoiding concave cambered surface and gradually separates from the fourth plane of the second driving rod 431, and the fifth spherical surface of the third force application member 33 can be quickly retracted into the third mounting seat 35 to avoid interference with the fourth seat body 41 when being collided, so that the smoothness of the detaching process is improved. After the first end of the second rocker 432 is pushed to the right, the end of the second driving rod 431 with the fourth plane protrudes into the third avoiding concave arc again. At the same time, the second conductive body 222 with the third spherical surface is smoothly retracted into the fourth seat 41 to be separated from the input tab conductor 121 with the third plane, so that the second signal transmission member 42 is in the second off position.

In the process of assembling the two adjacent display units, the second signal transmission member 42 can float in the fourth seat 41 along the X-axis direction of fig. 7, and the second signal transmission member 42 can smoothly perform point-surface contact with the first signal transmission member 32; the third force application member 33 can float in the third mounting seat 35 along the X-axis direction of fig. 7, and the third force application member 33 can smoothly perform point-surface contact fitting with the second driving rod 431, there is no interference between the first signal plug assembly 30 and the second signal plug assembly 40, and the second signal plug assembly 40 can be quickly inserted into the first signal plug assembly 30. Also, the second signal plug assembly 40 can be quickly separated from the first signal plug assembly 30 during the above-described detachment process between the adjacent two display units. In this way, the second signal plug assembly 40 and the first signal plug assembly 30 can be automatically connected, so that signals on the two display units can be automatically transmitted, the second signal plug assembly 40 does not need to be manually plugged and pulled by field personnel, and the field personnel can assemble or disassemble the two display units along the X-axis direction of fig. 7 conveniently.

In the present embodiment, the second power plug assembly 20, the first power plug assembly 10, the first signal plug assembly 30 and the second signal plug assembly 40 are all assembled at the screw hole positions of the corresponding display unit by screws.

As shown in fig. 1 to 8, the LED display device of the present embodiment includes a first display unit 51, a second display unit 52, and an insertion structure, where the first display unit 51 and the second display unit 52 are arranged side by side, and the insertion structure is the insertion structure of the LED display device. The plug-in structure of the LED display device can solve the problem that safety accidents are easy to happen when a power line is connected with an external power supply and a display unit is continuously assembled in the related art, so that the LED display device with the plug-in structure can solve the same technical problem. The first power plug assembly 10 of the plug structure is installed at the adjacent side of the first display unit 51 and the second display unit 52, and the second power plug assembly 20 of the plug structure is installed at the adjacent side of the second display unit 52 and the first display unit 51.

As shown in fig. 1 to 8, the LED display device of the present embodiment includes a first display unit 51, a second display unit 52, a third display unit 53, a fourth display unit 54, and an insertion structure, where the first display unit 51, the second display unit 52, the third display unit 53, and the fourth display unit 54 are arranged in an array and distributed circumferentially in turn, and the insertion structure is the insertion structure of the LED display device. Due to the fact that the plug-in structure of the LED display device can solve the problem that safety accidents are easy to happen when a power line is connected with an external power supply and a display unit is continuously assembled in the related art, the LED display device with the plug-in structure can solve the same technical problem.

As shown in fig. 1 to 9, 11, and 17 to 23, the first power plug 10 of the plug structure is mounted at a side of the first display unit 51 adjacent to the second display unit 52, and the second power plug 20 of the plug structure is mounted at a side of the second display unit 52 adjacent to the first display unit 51. The first signal plug assembly 30 of the plug structure is installed at the adjacent side of the first display unit 51 and the fourth display unit 54, and the second signal plug assembly 40 of the plug structure is installed at the adjacent side of the fourth display unit 54 and the first display unit 51. In this embodiment, the first display unit 51, the second display unit 52, the third display unit 53 and the fourth display unit 54 are all provided with through holes corresponding to the avoidance second power plug assembly 20, the first power plug assembly 10, the first signal plug assembly 30 and the second signal plug assembly 40, so that the second power plug assembly 20 and the first power plug assembly 10 can be conveniently plugged, and the first signal plug assembly 30 and the second signal plug assembly 40 can be conveniently plugged.

In this embodiment, the first display unit 51, the second display unit 52, the third display unit 53 and the fourth display unit 54 all include a box body and a lamp panel module arranged on the front side of the box body, and the inserting structure is installed on the rear side of the box body. Of course, the inserting structure can also be installed at the rear side of the lamp panel module.

As shown in fig. 1 to 8, in the process of assembling the fourth display unit 54, the third display unit 53, the second display unit 52 and the first display unit 51 together along the circumferential direction, since the second conductor 222 can float in the second seat 21 along the Y-axis direction of fig. 4, and the second conductor 222 can smoothly perform point-surface contact matching with the first conductor 12; the second force application member 17 can float in the Y-axis direction of fig. 4 in the second mounting seat 16, and the second force application member 17 can smoothly perform point-surface contact engagement with the first drive rod 251; the first force applying member 13 can float in the first mounting seat 14 in the Y-axis direction of fig. 4, and the first force applying member 13 can smoothly engage with the abutting rod 26 in point-surface contact. In this way, there is no interference between the second power plug assembly 20 and the first power plug assembly 10, and the second power plug assembly 20 can be quickly inserted into the first power plug assembly 10 in the X-axis direction or the Y-axis direction or in any one of the directions of rays drawn from the vertex of the angle formed by the X-axis and the Y-axis. Meanwhile, since the second signal transmission member 42 can float in the direction of the X axis of fig. 7 in the fourth seat 41, the second signal transmission member 42 can smoothly perform point-surface contact matching with the first signal transmission member 32; the third force application member 33 can float in the third mounting seat 35 along the X-axis direction of fig. 7, and the third force application member 33 can smoothly perform point-surface contact fitting with the second driving rod 431, there is no interference between the first signal plug assembly 30 and the second signal plug assembly 40, and the second signal plug assembly 40 can be quickly inserted into the first signal plug assembly 30 along the X-axis direction or the Y-axis direction or along any radial direction drawn from the vertex of the angle formed by the X-axis and the Y-axis. In this way, the second power plug assembly 20 and the first power plug assembly 10, and the first signal plug assembly 30 and the second signal plug assembly 40 are plugged together, and the first display unit 51 can be quickly and accurately assembled to the second display unit 52 and the fourth display unit 54 along the X-axis direction or the Y-axis direction, or along any ray direction drawn from the vertex of the angle formed by the X-axis and the Y-axis.

Similarly, in the process of detaching the fourth display unit 54, the third display unit 53, the second display unit 52 and the first display unit 51 along the circumferential direction, the second power plug assembly 20 can be quickly separated from the first power plug assembly 10 along the X-axis direction or the Y-axis direction or along any one of the directions of the rays drawn from the vertex of the angle formed by the X-axis and the Y-axis. The second signal plug assembly 40 can be quickly separated from the first signal plug assembly 30 in either the X-axis direction or the Y-axis direction or in any one of the directions of rays taken from the apex of the angle formed by the X-axis and the Y-axis. In this way, the second power plug assembly 20 and the first power plug assembly 10, and the first signal plug assembly 30 and the second signal plug assembly 40 are simultaneously pulled out, so that the first display unit 51 can be quickly and accurately detached from the second display unit 52 and the fourth display unit 54 along the X-axis direction or the Y-axis direction, or along any one of the directions of the rays drawn from the vertex of the angle formed by the X-axis and the Y-axis. Furthermore, the fourth display unit 54, the third display unit 53, the second display unit 52 and the first display unit 51 can be connected wirelessly (without flexible wires) and can be plugged and unplugged synchronously in the X-axis direction and the Y-axis direction of the plugging structure.

Of course, in the embodiment not shown in the drawings, the first signal plug component of the plug structure is installed at the side edge of the first display unit adjacent to the second display unit, and the second signal plug component of the plug structure is installed at the side edge of the second display unit adjacent to the first display unit. The first signal plug assembly of the plug structure is arranged at the adjacent side edge of the first display unit and the fourth display unit, and the second signal plug assembly of the plug structure is arranged at the adjacent side edge of the fourth display unit and the first display unit.

It should be noted that, when the plug-in structure is further implemented to be plugged and unplugged in the X-axis direction and the Y-axis direction, it is required to ensure that the point-surface contact pressure between the second conductive body 222 and the first conductive member 12 is sufficient, the point-surface contact pressure between the first force application member 13 and the abutting rod 26 is sufficient, and the point-surface contact pressure between the second force application member 17 and the first driving rod 251 is sufficient, so as to ensure stable transmission of the power supply and the signal. The force between the second power plug assembly 20 and the first power plug assembly 10 is designed as follows: the maximum force of the second force application member 17 pressing to the bottom is F1, and the minimum force of the first driving rod 251 is F2; the force conversion ratio N of the first rocker 252 is, the theoretical contact pressure between the second conductor 222 and the first conductive member 12 is F3, the compression reverse thrust of the fourth elastic member 201 is F4, the maximum force of the first force application member 13 pressing to the bottom is F5, the minimum force of the propping rod 26 is F6, the compression reverse thrust of the first elastic member 29 is F7, and the trigger force of the first switch member 24 is F8, and the sum G1 of the gravity of the second conductor 222 and the gravity of the insulating base 223. In order to ensure the second conductive member 222 is stably contacted with the first conductive member 12, the force relationship is: 2F2 is more than or equal to N (F3 + F4+ G1); f6 is more than or equal to F7 and F8. The force design between the second signal plug assembly 40 and the first signal plug assembly 30 is consistent with the force design between the second power plug assembly 20 and the first power plug assembly 10 in principle and will not be repeated here.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (14)

1. A plug-in structure of an LED display device is characterized by comprising:

the first power supply plug-in component (10) comprises a first base body (11) and a first conductive piece (12) arranged on the first base body (11);

the second power supply plug-in component (20) comprises a second seat body (21), a second conductive piece (22), a control circuit (23), a first switch piece (24), a first driving piece (25) and a trigger piece, wherein the second conductive piece (22) comprises a first conductive body (221) fixedly arranged on the second seat body (21) and a second conductive body (222) movably arranged in the second seat body (21),

the second conductor (222) has a first conducting position penetrating through the second seat (21) and contacting with the first conductor (12), and a first disconnecting position retracting into the second seat (21) and separating from the first conductor (12), the first driving element (25) is movably disposed on the second seat (21) and can drive the second conductor (222) to move,

the control circuit (23) is connected between the first conductor (221) and the second conductor (222), the first switch (24) is disposed in the second base (21), the on/off of the first switch (24) can control the control circuit (23) to be switched on or off, the trigger is movably disposed in the second base (21) and can trigger the first switch (24) to be switched on or off,

wherein when the first power plug assembly (10) is mated with the second power plug assembly (20), the first conductive member (12) and the second conductive member (222) are in contact conduction prior to the first switching member (24) being closed; the first switching member (24) is configured to open prior to separation of the first electrically-conductive member (12) and the second electrically-conductive member (222) when the first power plug assembly (10) is separated from the second power plug assembly (20).

2. The plug structure according to claim 1, wherein the second power plug assembly (20) further comprises a PCB board (27) and a relay (28), the PCB board (27) is disposed in the second housing (21), the control circuit (23) and the relay (28) are both located on the PCB board (27), the relay (28) is disposed in series with the control circuit (23), the first switch member (24) is connected in series between the relay (28) and an external power source (61), the first switch member (24) is closed to control the relay (28) to turn on the control circuit (23), and the first switch member (24) is opened to control the relay (28) to turn off the control circuit (23).

3. The plug-in connection structure according to claim 2,

the first conductor (221) comprises a first input conductor (2211) and a second input conductor (2212), the second conductor (222) comprises a first output conductor (2221) and a second output conductor (2222), the first input conductor (2211) is disconnected from the first output conductor (2221), the second input conductor (2212) is disconnected from the second output conductor (2222), and the first output conductor and the second output conductor (2222) can be in conductive contact with the first conductor (12);

-the control circuit (23) comprises a first control conductor (231) and a second control conductor (232) connected to the PCB board (27), the first control conductor (231) being connected between the first input conductor (2211) and the first output conductor (2221), the second control conductor (232) being connected between the second input conductor (2212) and the second output conductor (2222);

the relay (28) includes a first relay (281) and a second relay (282) arranged in parallel, the first relay (281) being arranged in series with the first control conductor (231), the second relay (282) being arranged in series with the second control conductor (232), the first switching element (24) being connected in series between the first relay (281) and the external power source (61).

4. The plugging structure according to claim 1, wherein a mounting hole is disposed in the second seat (21), the trigger includes an abutting rod (26), the abutting rod (26) is movably disposed through the mounting hole, the second conductive member (22) further includes an insulating base (223) movably disposed in the second seat (21), the second conductive body (222) is floatably disposed on the insulating base (223), the first driving member (25) includes a first driving rod (251) movably disposed in the second seat (21) and a first rocker (252) swingably disposed in the second seat (21), a first end of the first rocker (252) abuts against the first driving rod (251), a second end of the first rocker (252) abuts against the insulating base (223), the first driving rod (251) moves to press a first end of the first rocker (252) so as to drive the first rocker (252) to swing and drive the insulating base (223) to drive the second rocker (223) to drive the second conductive body (222) to drive the first conductive body (252) to switch the first conductive body (251) to the plugging position and the first conductive body (10) to be able to be moved through the first driving rod (251).

5. The plug-in structure according to claim 4, characterized in that, when the first power plug-in assembly (10) is spaced from both the first driving rod (251) and the abutment rod (26), the first driving rod (251) is in a first initial position and the abutment rod (26) is in a second initial position; -when said second electrical conductor (222) is in said first conducting position, said first driving rod (251) is in a first end position; when the first switch member (24) is closed, the ejector pin (26) is in a second end position, wherein,

when the first driving rod (251) is at the first initial position and the supporting rod (26) is at the second initial position, one end of the first driving rod (251) facing the first seat (11) protrudes out of one end of the supporting rod (26) facing the first seat (11); and/or the presence of a gas in the atmosphere,

a first movement stroke (L1) of the first driving rod (251) from the first initial position to the first end position is larger than a second movement stroke (L2) of the abutting rod (26) from the second initial position to the second end position.

6. The plug structure according to claim 4, wherein the second power plug assembly (20) further comprises a first elastic member (29) disposed in the mounting hole, and the first elastic member (29) applies an elastic force to the abutting rod (26) toward the first seat (11).

7. The plugging structure according to claim 4, wherein the first power supply plugging assembly (10) further comprises a first mounting seat (14) spaced from the first base (11), a first force applying member (13) movably located in the first mounting seat (14), and a second elastic member (15) arranged in the first mounting seat (14), the first force applying member (13) can push the supporting rod (26) to drive the supporting rod (26) to move, the second elastic member (15) applies an elastic force to the first force applying member (13) toward the supporting rod (26), and the first force applying member (13) can be in point-surface contact with the supporting rod (26) to match.

8. The plug structure according to claim 4, wherein the first power plug assembly (10) further comprises a second mounting seat (16) spaced from the first seat (11), a second force applying member (17) movably located in the second mounting seat (16), and a third elastic member (19) disposed in the second mounting seat (16), the second force applying member (17) can push the first driving rod (251) to drive the first driving rod (251) to move, the third elastic member (19) applies an elastic force to the second force applying member (17) toward the first driving member (25), and the second force applying member (17) can be in point-to-surface contact with the first driving member (25).

9. The plug structure according to claim 1, wherein the second power plug assembly (20) further comprises a fourth elastic member (201) disposed between the second seat (21) and the second conductor (222), the fourth elastic member (201) applying an elastic force to the second conductor (222) in a direction away from the first seat (11); and/or, when the second conductor (222) is in the first conducting position, the second conductor (222) is in point-surface contact fit with the first conductor (12).

10. The plug-in connection structure according to any one of claims 1 to 9,

the first power plug assembly (10) further comprises a second switching element (18), the second switching element (18) being capable of putting the first electrically conductive element (12) itself in a conducting state or in an off state;

and/or, the first conductive member (12) includes an input flap conductor (121) and an output flap conductor (122) installed in the first seat (11), the input flap conductor (121) and the output flap conductor (122) are disconnected, the second switch member (18) includes a connection conductor installed in the first seat (11) and an operation key (181) for driving the connection conductor to move, and when the connection conductor moves to match with the input flap conductor (121) and the output flap conductor (122), the connection conductor can conduct through the connection conductor.

11. The plug structure according to any one of claims 1 to 9, further comprising:

the first signal plug-in assembly (30) comprises a third base body (31) and a first signal transmission piece (32) arranged on the third base body (31);

the second signal plug-in assembly (40) comprises a fourth base body (41), a second signal transmission piece (42) arranged on the fourth base body (41) and a second driving piece (43) movably arranged on the fourth base body (41),

the second signal transmission piece (42) has a second conduction position penetrating through the fourth seat body (41) and in conductive contact with the first signal transmission piece (32) and a second disconnection position retracted into the fourth seat body (41) and separated from the first signal transmission piece (32), and the second driving piece (43) is movable to drive the second signal transmission piece (42) to move towards or away from the first signal transmission piece (32) so that the second signal transmission piece (42) is switched between the second conduction position and the second disconnection position.

12. The plugging structure according to claim 11,

the second signal plug-in assembly (40) further comprises a fifth elastic piece (44) arranged between the fourth base body (41) and the second signal transmission piece (42), and the fifth elastic piece (44) applies elastic force to the second signal transmission piece (42) along a direction departing from the third base body (31); and/or, when the second signal transmission piece (42) is in the second conduction position, the second signal transmission piece (42) is in point-surface contact fit with the first signal transmission piece (32);

the second driving element (43) comprises a second driving rod (431) movably arranged in the fourth seat body (41) in a penetrating manner and a second rocker (432) arranged in the fourth seat body (41) in a swinging manner, a first end of the second rocker (432) is abutted to the second driving rod (431), a second end of the second rocker (432) is abutted to the second signal transmission piece (42), and the second driving rod (431) moves to press down the first end of the second rocker (432) so as to drive the second rocker (432) to swing and drive the second signal transmission piece (42) to be switched from the second off position to the second on position;

the first signal plug-in assembly (30) further comprises a third mounting seat (35) arranged at an interval with the third base body (31), a third force application piece (33) movably located in the third mounting seat (35), and a sixth elastic piece (34) arranged in the third mounting seat (35), wherein the sixth elastic piece (34) applies elastic force to the third force application piece (33) towards the second driving piece (43), and the third force application piece (33) can be in point-surface contact fit with the second driving piece (43).

13. An LED display device, comprising a first display unit (51), a second display unit (52) and a plug structure, wherein the first display unit (51) and the second display unit (52) are arranged side by side, the plug structure is the plug structure of the LED display device according to any one of claims 1 to 12, a first power plug component (10) of the plug structure is installed at a side of the first display unit (51) adjacent to the second display unit (52), and a second power plug component (20) of the plug structure is installed at a side of the second display unit (52) adjacent to the first display unit (51).

14. An LED display device, comprising a first display unit (51), a second display unit (52), a third display unit (53), a fourth display unit (54) and a plug-in structure, characterized in that the first display unit (51), the second display unit (52), the third display unit (53) and the fourth display unit (54) are arranged in an array and distributed along the circumference, the plug-in structure is the plug-in structure of the LED display device according to claim 11 or 12,

the first power supply plug-in component (10) of the plug-in structure is arranged at the adjacent side of the first display unit (51) and the second display unit (52), the second power supply plug-in component (20) of the plug-in structure is arranged at the adjacent side of the second display unit (52) and the first display unit (51),

the first signal plug-in component (30) of the plug-in structure is arranged at the side edge of the first display unit (51) adjacent to the second display unit (52), and the second signal plug-in component (40) of the plug-in structure is arranged at the side edge of the second display unit (52) adjacent to the first display unit (51); and/or the presence of a gas in the gas,

the first signal plug-in component (30) of the plug-in structure is arranged at the adjacent side edge of the first display unit (51) and the fourth display unit (54), and the second signal plug-in component (40) of the plug-in structure is arranged at the adjacent side edge of the fourth display unit (54) and the first display unit (51).

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