阅读说明：本技术 第一连接器、第二连接器和led显示屏 (First connector, second connector and LED display screen ) 是由 张现峰 张永军 李国强 于 2021-02-04 设计创作，主要内容包括：本发明涉及一种第一连接器、第二连接器和LED显示屏,LED显示屏包括LED单元显示屏及电连接在LED单元显示屏上的第一连接器与第二连接器；一LED单元显示屏的第二连接器插接在相邻的LED单元显示屏的第一连接器上；第一交流电端子与第二交流电端子电连接,以形成交流电通路；第一直流电端子与第二直流电端子电连接,以形成直流电通路；第一信号端子与第二信号端子电连接,以形成信号通路；信号通路用于识别LED单元显示屏的电源状态。与现有技术相比,当交流电通路发生故障断路时,LED单元显示屏可通过直流电通路由相邻的LED单元显示屏为其供电,保证LED单元显示屏的显示,防止LED单元显示屏出现断电现象,有利于确保LED显示屏的正常显示。(The invention relates to a first connector, a second connector and an LED display screen, wherein the LED display screen comprises an LED unit display screen and the first connector and the second connector which are electrically connected on the LED unit display screen; the second connector of one LED unit display screen is inserted into the first connector of the adjacent LED unit display screen; the first alternating current terminal is electrically connected with the second alternating current terminal to form an alternating current circuit; the first direct current terminal is electrically connected with the second direct current terminal to form a direct current circuit; the first signal terminal is electrically connected with the second signal terminal to form a signal path; the signal path is used for identifying the power state of the LED unit display screen. Compared with the prior art, when the alternating current circuit breaks down and opens the circuit, LED unit display screen accessible direct current circuit is supplied power for it by adjacent LED unit display screen, guarantees the demonstration of LED unit display screen, prevents that LED unit display screen from appearing the outage phenomenon, is favorable to guaranteeing the normal demonstration of LED display screen.)

1. A first connector is characterized by comprising a mounting plate, a cover plate, a first alternating current terminal, a first direct current terminal and a first signal terminal, wherein the first alternating current terminal, the first direct current terminal and the first signal terminal are arranged on the cover plate in a penetrating mode, the cover plate is fixed on the mounting plate, and the mounting plate is used for being fixedly connected with first electronic equipment;

the inner end of the first alternating current terminal is used for being electrically connected with the first electronic device, and the outer end of the first alternating current terminal is used for being electrically connected with a second connector electrically connected to a second electronic device, so that an alternating current circuit is formed among the first electronic device, the first connector, the second connector and the second electronic device;

the inner end of the first direct current terminal is used for being electrically connected with the first electronic equipment, and the outer end of the first direct current terminal is used for being electrically connected with a second connector electrically connected on the second electronic equipment, so that a direct current path is formed among the first electronic equipment, the first connector, the second connector and the second electronic equipment;

the inner end of the first signal terminal is used for being electrically connected with the first electronic device, and the outer end of the first signal terminal is used for being electrically connected with a second connector electrically connected on the second electronic device, so that a signal path is formed among the first electronic device, the first connector, the second connector and the second electronic device; the signal path is used for identifying the power states among the first electronic device, the first connector, the second connector and the second electronic device.

2. The first connector according to claim 1, wherein an avoiding hole for avoiding the dc path, the ac path and the signal path is provided on the mounting plate, an end surface of the mounting plate close to the first electronic device is provided with a first annular housing protruding outward, the first annular housing surrounds the avoiding hole, and the cover plate is fixed in the first annular housing.

3. The first connector of claim 1, wherein said first ac electrical terminal, said first dc electrical terminal and said first signal terminal are secured to said cover plate in spaced relation to one another.

4. The first connector according to claim 1, wherein a side of the cover plate adjacent to the first electronic device is provided with a first isolation frame for isolating the first ac terminal, the first dc terminal and the first signal terminal from each other.

5. The first connector of claim 2, wherein an end face of the mounting plate facing away from the first annular shell is provided with a second annular shell protruding outwards, the second annular shell surrounds the avoiding hole, a clamping groove is formed in the outer surface of the second annular shell, and the clamping groove is used for clamping with a clamping piece of the second connector.

6. The first connector according to claim 5, wherein a plurality of guide channels are disposed in the second annular housing, the guide channels are disposed at intervals, the guide channels are communicated with the avoiding holes, and the ac electrical path, the dc electrical path and the signal path are respectively disposed in different guide channels.

7. A second connector characterized by comprising a connecting device and a cable, the connecting device comprising a mounting case for connecting with a first connector fixed to a first electronic device, a second alternating current terminal, a second direct current terminal and a second signal terminal, the second alternating current terminal, the second direct current terminal and the second signal terminal being fixed within the mounting case, the cable comprising an alternating current wire, a direct current wire and a signal wire;

the first end of the alternating current wire is used for being electrically connected with a second electronic device, the second end of the alternating current wire penetrates into the mounting shell and is electrically connected with the inner end of the second alternating current terminal, and the outer end of the second alternating current terminal is used for being electrically connected with a first connector electrically connected to the first electronic device, so that an alternating current path is formed among the first electronic device, the first connector, the second connector and the second electronic device;

the first end of the direct current wire is used for being electrically connected with the second electronic device, the second end of the direct current wire penetrates into the mounting shell and is electrically connected with the inner end of the second direct current terminal, and the outer end of the second direct current terminal is used for being electrically connected with a first connector electrically connected to the first electronic device, so that a direct current path is formed among the first electronic device, the first connector, the second connector and the second electronic device;

the first end of the signal wire is used for being electrically connected with the second electronic device, the second end of the signal wire penetrates into the mounting shell and is connected with the inner end of the second signal terminal, and the outer end of the second signal terminal is used for being electrically connected with a first connector electrically connected on the first electronic device, so that a signal path is formed among the first electronic device, the first connector, the second connector and the second electronic device; the signal path is used for identifying the power states among the first electronic device, the first connector, the second connector and the second electronic device.

8. The second connector according to claim 7, wherein the mounting shell includes an outer shell, an inner core, and a tail sleeve, a first end of the outer shell is used for connecting with the first connector, a second end of the outer shell is fixedly connected with the tail sleeve, and a receiving cavity is formed inside the outer shell and the tail sleeve, the second ac electric terminal, the second dc electric terminal, and the second signal terminal are fixed on the inner core, the inner core is received in the receiving cavity, and one end of the cable extends into the receiving cavity through the tail sleeve.

9. The second connector according to claim 8, wherein a second isolation frame is provided on an end surface of the inner core adjacent to the boot, the second isolation frame being configured to isolate the second ac electrical terminal, the second dc electrical terminal, and the second signal terminal from each other.

10. An LED display screen, characterized in that, the LED display screen comprises a first connector according to any one of claims 1 to 6, a second connector according to any one of claims 7 to 9 and a plurality of LED unit display screens, the first connector is fixed at one end of the LED unit display screen, and the inner end of the first AC terminal, the inner end of the first DC terminal and the inner end of the first signal terminal are respectively and electrically connected with the LED unit display screen; a second connector is fixed at the other end of the LED unit display screen, and the first end of the alternating current wire, the first end of the direct current wire and the first end of the signal wire are respectively and electrically connected with the LED unit display screen;

the second connector of the LED unit display screen is connected with the adjacent first connector of the LED unit display screen in an inserting mode, the mounting shell is fixedly connected with the mounting plate, the outer end of the first alternating current terminal is electrically connected with the outer end of the second alternating current terminal, the outer end of the first direct current terminal is electrically connected with the outer end of the second direct current terminal, and the outer end of the first signal terminal is electrically connected with the outer end of the second signal terminal.

Technical Field

The invention belongs to the technical field of connectors, and particularly relates to a first connector, a second connector and an LED display screen.

Background

A connector is a connecting device for connecting a plurality of signal lines or power lines in sequence, is an indispensable component in electronic equipment, is widely used in various electric lines, and plays a role in connecting or disconnecting a circuit. The existing power connector is a three-way connector and is respectively connected with a zero line, a live line and a ground line of civil electricity.

In the display screen industry, a large-sized LED display screen is assembled by a plurality of LED unit display screens. The LED unit display screen is connected with the connectors in series and then connected with other LED unit display screens in parallel, when one connector fails, the LED unit display screen connected with the connector in series also fails, and images cannot be displayed. The method brings great inconvenience to practical application, greatly influences the use effect of the large-scale LED display screen, and is poor in user experience.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the first connector, the second connector and the LED display screen are provided for solving the problem that when one connector fails, a unit display screen connected with the connector in series also fails.

In order to solve the above technical problem, an embodiment of the present invention provides a first connector, including a mounting plate, a cover plate, a first ac electrical terminal, a first dc electrical terminal, and a first signal terminal, where the first ac electrical terminal, the first dc electrical terminal, and the first signal terminal are disposed on the cover plate in a penetrating manner, the cover plate is fixed on the mounting plate, and the mounting plate is used for being fixedly connected to a first electronic device;

the inner end of the first alternating current terminal is used for being electrically connected with the first electronic device, and the outer end of the first alternating current terminal is used for being electrically connected with a second connector electrically connected to a second electronic device, so that an alternating current circuit is formed among the first electronic device, the first connector, the second connector and the second electronic device;

the inner end of the first direct current terminal is used for being electrically connected with the first electronic equipment, and the outer end of the first direct current terminal is used for being electrically connected with a second connector electrically connected on the second electronic equipment, so that a direct current path is formed among the first electronic equipment, the first connector, the second connector and the second electronic equipment;

the inner end of the first signal terminal is used for being electrically connected with the first electronic device, and the outer end of the first signal terminal is used for being electrically connected with a second connector electrically connected on the second electronic device, so that a signal path is formed among the first electronic device, the first connector, the second connector and the second electronic device; the signal path is used for identifying the power states among the first electronic device, the first connector, the second connector and the second electronic device.

Optionally, be provided with on the mounting panel dodge the direct current route alternating current route with the hole of dodging of signal path, being close to of mounting panel an terminal surface of first electronic equipment is provided with outside convex first annular casing, first annular casing encircles dodge the hole, the apron is fixed in the first annular casing.

Optionally, the first ac terminal, the first dc terminal and the first signal terminal are fixed to the cover plate at a distance from each other.

Optionally, a side of the cover plate close to the first electronic device is provided with a first isolation frame, and the first isolation frame is used for isolating the first ac terminal, the first dc terminal and the first signal terminal from each other.

Optionally, the mounting panel deviate from an end face of first annular casing is provided with the annular casing of outside convex second, the annular casing of second encircles dodge the hole, be provided with the draw-in groove on the surface of the annular casing of second, the draw-in groove be used for with the fastener joint of second connector.

Optionally, a plurality of guide channels are arranged in the second annular shell, the guide channels are arranged at intervals, the guide channels are communicated with the avoidance holes, and the alternating current path, the direct current path and the signal path are respectively arranged in the guide channels in a penetrating mode.

In another aspect, embodiments of the present invention provide a second connector including a connecting device and a cable, the connecting device including a mounting case, a second ac electric terminal, a second dc electric terminal, and a second signal terminal, the mounting case being configured to be connected to a first connector fixed to a first electronic device, the second ac electric terminal, the second dc electric terminal, and the second signal terminal being fixed in the mounting case, the cable including an ac electric wire, a dc electric wire, and a signal wire;

the first end of the alternating current wire is used for being electrically connected with a second electronic device, the second end of the alternating current wire penetrates into the mounting shell and is electrically connected with the inner end of the second alternating current terminal, and the outer end of the second alternating current terminal is used for being electrically connected with a first connector electrically connected to the first electronic device, so that an alternating current path is formed among the first electronic device, the first connector, the second connector and the second electronic device;

the first end of the direct current wire is used for being electrically connected with the second electronic device, the second end of the direct current wire penetrates into the mounting shell and is electrically connected with the inner end of the second direct current terminal, and the outer end of the second direct current terminal is used for being electrically connected with a first connector electrically connected to the first electronic device, so that a direct current path is formed among the first electronic device, the first connector, the second connector and the second electronic device;

the first end of the signal wire is used for being electrically connected with the second electronic device, the second end of the signal wire penetrates into the mounting shell and is connected with the inner end of the second signal terminal, and the outer end of the second signal terminal is used for being electrically connected with a first connector electrically connected on the first electronic device, so that a signal path is formed among the first electronic device, the first connector, the second connector and the second electronic device; the signal path is used for identifying the power states among the first electronic device, the first connector, the second connector and the second electronic device.

Optionally, the mounting shell includes an outer shell, an inner core and a tail sleeve, a first end of the outer shell is configured to be connected to the first connector, a second end of the outer shell is fixedly connected to the tail sleeve, and a receiving cavity is formed inside the outer shell and the tail sleeve, the second ac terminal, the second dc terminal and the second signal terminal are fixed to the inner core, the inner core is received in the receiving cavity, and one end of the cable extends into the receiving cavity through the tail sleeve.

Optionally, a second isolation frame is disposed on an end surface of the inner core close to the tail sleeve, and the second isolation frame is configured to isolate the second ac electrical terminal, the second dc electrical terminal, and the second signal terminal from each other.

On the other hand, an embodiment of the present invention further provides an LED display screen, including the first connector according to any one of the foregoing technical solutions, the second connector according to any one of the foregoing technical solutions, and a plurality of LED unit display screens, where the first connector is fixed to one end of each of the LED unit display screens, and an inner end of the first ac electrical terminal, an inner end of the first dc electrical terminal, and an inner end of the first signal terminal are electrically connected to the LED unit display screens, respectively; a second connector is fixed at the other end of the LED unit display screen, and the first end of the alternating current wire, the first end of the direct current wire and the first end of the signal wire are respectively and electrically connected with the LED unit display screen;

the second connector of the LED unit display screen is connected with the adjacent first connector of the LED unit display screen in an inserting mode, the mounting shell is fixedly connected with the mounting plate, the outer end of the first alternating current terminal is electrically connected with the outer end of the second alternating current terminal, the outer end of the first direct current terminal is electrically connected with the outer end of the second direct current terminal, and the outer end of the first signal terminal is electrically connected with the outer end of the second signal terminal.

According to the first connector, the second connector and the LED display screen provided by the embodiment of the invention, every two adjacent LED unit display screens in the LED display screen are connected together through the first connector and the second connector, the first alternating current electric terminal of the first connector and the second alternating current electric terminal of the second connector are electrically connected to form an alternating current circuit for connecting the two adjacent LED unit display screens, the first direct current terminal of the first connector and the second direct current electric terminal of the second connector are electrically connected to form a direct current circuit for connecting the two adjacent LED unit display screens, and the first signal terminal of the first connector and the second signal terminal of the second connector are electrically connected to form a signal circuit for connecting the two adjacent LED unit display screens; when the alternating current circuit breaks down and is broken, the LED unit display screens can supply power to the adjacent LED unit display screens through the direct current circuit, so that the display of the LED unit display screens is ensured, and compared with the existing first connector and second connector which only have the alternating current circuit, the LED unit display screens which are connected with the first connector and the second connector in series are prevented from being influenced when the alternating current circuit in the first connector and the second connector breaks down, the power failure phenomenon of the LED unit display screens is prevented, and the normal display of the LED display screens is ensured; the power states of the first connector and the second connector are identified through the signal circuit, when the signal circuit identifies the power failure of the alternating current circuit, the signal circuit sends out related indicating signals, and a user can replace the failed first connector and the failed second connector after the LED display screen is used up according to the indicating signals, so that the situation that the user cannot know the specific conditions of all parts of the LED display screen is avoided, and the maintenance of the LED display screen is facilitated.

Drawings

Fig. 1 is a schematic structural diagram of a first connector and a second connector according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the exploded structure of FIG. 1;

fig. 3 is a schematic structural diagram of a first connector, a second ac terminal, a second dc terminal, and a second signal terminal according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another angle of the first connector according to an embodiment of the present invention.

The reference numerals in the specification are as follows:

1. a first connector; 11. mounting a plate; 111. mounting holes; 12. a cover plate; 121. buckling; 122. a first isolation frame; 13. a first annular housing; 131. a clamping hole; 14. a second annular housing; 141. a card slot; 15. a first alternating current terminal; 16. a first direct current terminal; 17. a first signal terminal; 18. a guide channel;

2. a second connector; 21. a connecting device; 211. a housing; 212. an inner core; 2121. a second isolation frame; 213. a tail sleeve; 214. a second alternating current terminal; 215. a second direct current terminal; 216. a second signal terminal; 217. a fastener; 218. a locking member; 2181. hinging a shaft; 2182. an elastic member; 219. a waterproof ring; 22. a cable.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1:

as shown in fig. 1, a first connector 1 according to an embodiment of the present invention includes an installation plate 11, a cover plate 12, a first ac terminal 15, a first dc terminal 16, and a first signal terminal 17, where the first ac terminal 15, the first dc terminal 16, and the first signal terminal 17 are disposed on the cover plate 12, the cover plate 12 is fixed on the installation plate 11, and the installation plate 11 is used to be fixedly connected to a first electronic device.

The inner end of the first ac electrical terminal 15 is used for electrical connection with a first electronic device, and the outer end of the first ac electrical terminal 15 is used for electrical connection with the second connector 2 electrically connected to a second electronic device, so that an ac electrical path is formed between the first electronic device, the first connector 1, the second connector 2 and the second electronic device.

The inner end of the first dc terminal 16 is used for electrically connecting with a first electronic device, and the outer end of the first dc terminal 16 is used for electrically connecting with a second connector 2 electrically connected to a second electronic device, so that a dc current path is formed among the first electronic device, the first connector 1, the second connector 2 and the second electronic device.

The inner end of the first signal terminal 17 is used for being electrically connected with a first electronic device, and the outer end of the first signal terminal 17 is used for being electrically connected with a second connector 2 electrically connected with a second electronic device, so that a signal path is formed among the first electronic device, the first connector 1, the second connector 2 and the second electronic device; the signal path is used to identify the power states between the first electronic device, the first connector 1, the second connector 2 and the second electronic device.

Compared with the prior art, in the first connector 1 provided by the embodiment of the invention, every two adjacent LED unit display screens in the LED display screens are connected together through the first connector 1 and the second connector 2, the first ac electric terminal 15 of the first connector 1 is electrically connected with the second connector 2 to form an ac electric path for connecting the two adjacent LED unit display screens, the first dc electric terminal 16 of the first connector 1 is electrically connected with the second connector 2 to form a dc electric path for connecting the two adjacent LED unit display screens, and the first signal terminal 17 of the first connector 1 is electrically connected with the second connector 2 to form a signal path for connecting the two adjacent LED unit display screens; when the alternating current circuit breaks down and is broken, the LED unit display screens can supply power to the adjacent LED unit display screens through the direct current circuit, the display of the LED unit display screens is ensured, compared with the existing first connector 1 only with the alternating current circuit, the LED unit display screens connected with the first connector 1 in series are prevented from being influenced when the alternating current circuit in the first connector 1 breaks down, the LED unit display screens are prevented from being broken down, and the normal display of the LED display screens is favorably ensured; simultaneously through the power state of signal circuit discernment first connector, when signal circuit discerned the alternating current circuit outage, signal circuit sent relevant pilot signal, and the user can be according to pilot signal change the first connector 1 of trouble after the LED display screen has used up, avoids the user can't learn the particular case of each part of LED display screen, is favorable to the maintenance of LED display screen.

In an implementation manner of this embodiment, when the signal circuit recognizes that the ac current path is energized, the signal circuit feeds the signal back to the control system of the LED unit display screen, and the control system directly supplies power to the LED unit display screen through an external power source via the ac current path according to the signal; when the signal circuit identifies that the alternating current circuit is powered off, the signal circuit feeds the signal back to a control system of the LED unit display screen, the control system supplies power to the LED unit display screen through the adjacent LED unit display screen through the direct current circuit according to the signal, meanwhile, the signal circuit sends out related indication signals, and a user can replace a first connector with a fault after the LED display screen is used up according to the indication signals.

In an implementation manner of this embodiment, the signal circuit is configured to detect an on-off state of the ac power path, and when the signal circuit detects that the ac power path is powered off, the signal circuit sends out a related indication signal, so that a user can replace the failed first connector after the LED display screen is used up according to the indication signal.

It should be noted that the alternating current path includes a zero line path, a live line path and a ground line path, the direct current path includes a direct current positive electrode path and a direct current negative electrode path, and the signal path includes a first path for detecting and feeding back the on-off state of the zero line path, a second path for detecting and feeding back the on-off state of the live line path and a third path for detecting and feeding back the on-off state of the ground line path.

In this embodiment, the mounting plate 11 is provided with avoiding holes for avoiding the ac path, the dc path and the signal path.

Specifically, the number of the avoidance holes is 8, and the zero line passage, the live line passage, the ground line passage, the direct current positive electrode passage, the direct current negative electrode passage, the first passage, the second passage and the third passage correspond to one avoidance hole respectively.

In the present embodiment, as shown in fig. 2, an end surface of the mounting plate 11 close to the first electronic device is provided with a first annular housing 13 protruding outward, the first annular housing 13 surrounds the avoiding hole, and the cover plate 12 is fixed in the first annular housing 13. The protection of the first alternating current terminal 15, the first direct current terminal 16 and the first signal terminal 17 is facilitated, the waterproof performance of the connection part of the first connector 1 and the first electronic device is enhanced, the first alternating current terminal 15 and the first direct current terminal 16 are prevented from being contacted with other structures to generate electric leakage, and the use safety of the first connector 1 is improved.

In the present embodiment, as shown in fig. 4, a first ac terminal 15, a first dc terminal 16, and a first signal terminal 17 are fixed to the cover plate 12 at intervals. The first alternating current terminal 15, the first direct current terminal 16 and the first signal terminal 17 are prevented from being in contact with each other to cause a fault, and the use safety of the first connector 1 is improved.

In the present embodiment, as shown in fig. 4, a first isolation frame 122 is disposed on a side surface of the cover plate 12 close to the first electronic device, and the first isolation frame 122 is used for isolating the first ac terminal 15, the first dc terminal 16, and the first signal terminal 17 from each other. The first ac terminal 15, the first dc terminal 16, and the first signal terminal 17 can be better protected from interfering with each other, and the safety of the first connector 1 is improved.

Specifically, the first isolation frame 122 isolates the zero line path, the live line path, the ground line path, the direct current positive electrode path, the direct current negative electrode path, the first path, the second path, and the third path from each other.

In this embodiment, as shown in fig. 3, a buckle 121 is disposed on the cover plate 12, a buckle hole 131 is disposed on the first annular housing 13, and the buckle 121 is clamped in the buckle hole 131 to fixedly connect the cover plate 12 and the first annular housing 13. The structure is simple, and the connection between the cover plate 12 and the first annular shell 13 is convenient.

In this embodiment, as shown in fig. 2 and fig. 3, an end surface of the mounting plate 11 facing away from the first annular housing 13 is provided with a second annular housing 14 protruding outward, the second annular housing 14 surrounds the avoiding hole, and a clamping groove 141 is provided on an outer surface of the second annular housing 14, and the clamping groove 141 is used for being clamped with the clamping member 217 of the second connector 2. The connection of first connector 1 and second connector 2 is convenient for, makes the connection of first connector 1 and second connector 2 more firm, strengthens the waterproof performance of first connector 1 and the junction of second connector 2 simultaneously, has improved the safety in utilization of first connector 1 and second connector 2.

In the present embodiment, as shown in fig. 2 and 3, a plurality of guide channels 18 are disposed in the second annular housing 14, the guide channels 18 are disposed at intervals, the guide channels 18 are communicated with the avoiding hole, and the ac current path, the dc current path, and the signal path are respectively disposed in different guide channels. The connection of the first alternating current terminal 15 and the second alternating current terminal 214, the connection of the first direct current terminal 16 and the second direct current terminal 215, and the connection of the first signal terminal 17 and the second signal terminal 216 are facilitated, so that the alternating current path, the direct current path and the signal path can be isolated from each other, interference is avoided, and the use safety of the first connector 1 and the second connector 2 is improved.

Specifically, the number of the guide channels 18 is 8, and the guide channels 18 are arranged in one-to-one correspondence with the avoidance holes.

In one embodiment, as shown in fig. 2, the mounting plate 11 is provided with mounting holes 111, and screws pass through the mounting holes 111 and are fixedly connected with the first electronic device to fix the mounting plate 11 on the first electronic device. The first connector is favorably fixed on the first electronic equipment, and the first connector is convenient to mount and dismount.

Preferably, the mounting plate 11 is a square plate, and four corners of the mounting plate 11 are respectively provided with a mounting hole 111.

Example 2:

as shown in fig. 2 and 3, the present invention provides a second connector 2, including a connecting device 21 and a cable 22, the connecting device 21 including a mounting case for connecting with a first connector 1 fixed on a first electronic device, a second ac electric terminal 214, a second dc electric terminal 215 and a second signal terminal 216, the second ac electric terminal 214, the second dc electric terminal 215 and the second signal terminal 216 being fixed in the mounting case, the cable 22 including an ac electric wire, a dc electric wire and a signal wire;

a first end of an alternating current wire is used for being electrically connected with a second electronic device, a second end of the alternating current wire penetrates into the mounting shell and is electrically connected with an inner end of a second alternating current terminal 214, and an outer end of the second alternating current terminal 214 is used for being electrically connected with a first connector 1 electrically connected to the first electronic device, so that an alternating current path is formed among the first electronic device, the first connector 1, the second connector 2 and the second electronic device;

a first end of the direct current wire is used for being electrically connected with a second electronic device, a second end of the direct current wire penetrates into the mounting shell and is electrically connected with an inner end of the second direct current terminal 215, and an outer end of the second direct current terminal 215 is used for being electrically connected with the first connector 1 electrically connected on the first electronic device, so that a direct current path is formed among the first electronic device, the first connector 1, the second connector 2 and the second electronic device;

a first end of the signal wire is used for being electrically connected with the second electronic device, one end of the signal wire penetrates into the mounting shell and is electrically connected with the inner end of the second signal terminal 216, and the outer end of the second signal terminal 216 is used for being electrically connected with the first connector 1 electrically connected on the first electronic device, so that a signal path is formed among the first electronic device, the first connector 1, the second connector 2 and the second electronic device; the signal path is used to identify the power states between the first electronic device, the first connector 1, the second connector 2 and the second electronic device.

Compared with the prior art, in the second connector 2 provided by the embodiment of the present invention, every two adjacent LED unit display screens in the LED display screens are connected together through the first connector 1 and the second connector 2, the second ac electric terminal 214 of the second connector 2 is electrically connected to the first connector 1 to form an ac electric path connecting the two adjacent LED unit display screens, the second dc electric terminal 215 of the second connector 2 is electrically connected to the first connector 1 to form a dc electric path connecting the two adjacent LED unit display screens, and the second signal terminal 216 of the second connector 2 is electrically connected to the first connector 1 to form a signal path connecting the two adjacent LED unit display screens; when the alternating current circuit breaks down and is broken, the LED unit display screens can supply power to the adjacent LED unit display screens through the direct current circuit, the display of the LED unit display screens is ensured, compared with the existing second connector 2 only with the alternating current circuit, the LED unit display screens connected with the second connector 2 in series are prevented from being influenced when the alternating current circuit in the second connector 2 breaks down, the LED unit display screens are prevented from being broken down, and the normal display of the LED display screens is favorably ensured; meanwhile, the power state of the second connector is identified through the signal circuit, when the signal circuit identifies the power failure of the alternating current circuit, the signal circuit sends out related indicating signals, and a user can replace the failed second connector 2 after the LED display screen is used up according to the indicating signals, so that the situation that the user cannot know the specific conditions of all parts of the LED display screen is avoided, and the maintenance of the LED display screen is facilitated.

In the present embodiment, as shown in fig. 2, the mounting shell includes an outer shell 211, an inner core 212 and a tail sleeve 213, a first end of the outer shell 211 is used for connecting with the first connector 1, a second end of the outer shell 211 is fixedly connected with the tail sleeve 213, and an accommodating cavity is formed inside the two, a second ac electric terminal 214, a second dc electric terminal 215 and a second signal terminal 216 are fixed on the inner core 212, the inner core 212 is accommodated in the accommodating cavity, and one end of the cable 22 extends into the accommodating cavity through the tail sleeve 213. The structure is simple, and the second alternating current terminal 214, the second direct current terminal 215 and the second signal terminal 216 are convenient to fix and install.

In this embodiment, as shown in fig. 2, a second isolation mount 2121 is fixed to an end of the inner core 212 close to the tail sleeve 213, and the second isolation mount 2121 is used to isolate an inner end of the second ac terminal 214, an inner end of the second dc terminal 215, and an inner end of the second signal terminal 216 from each other. The second ac terminal 214, the second dc terminal 215, and the second signal terminal 216 can be better protected from interfering with each other, so as to prevent the second ac terminal 214, the second dc terminal 215, and the second signal terminal 216 from contacting each other and causing a failure, thereby improving the electrical safety of the second connector 2.

In this embodiment, as shown in fig. 2, the mounting shell further includes a waterproof ring 219 disposed on the inner core 212. Improve the waterproof performance of second connector 2, thereby avoid in the infiltration of water second connector 2 to damage the electronic component in the second connector 2, improved second connector 2's power consumption security.

In this embodiment, the boot 213 is injection molded onto the housing 211. The stability and the sealing performance of the connection between the tail sleeve 213 and the outer shell 211 are improved, and the waterproof performance of the second connector 2 is enhanced.

In this embodiment, as shown in fig. 2, the housing 211 further includes a locking member 217 and a locking member 218, and the locking member 218 is used for temporarily locking the locking member 217 in the slot 141 of the first connector 1, so as to temporarily and fixedly connect the first connector 1 and the second connector 2. The stability that first connector 1 and second connector 2 are connected is favorable to improving, rocks between avoiding first connector 1 and the second connector 2 and leads to both separation to take place the outage, prevents to influence the normal demonstration of LED display screen.

In this embodiment, the locking piece includes articulated shaft 2181 and elastic component 2182, and the interlude of fastener 217 is provided with the hinge through-hole, and articulated shaft 2181 is worn to establish in the hinge through-hole, and the both ends of articulated shaft 2181 are fixed on shell 211, and fastener 217 can rotate around articulated shaft 2181, and elastic component 2182 supports on the first end of fastener 217 and shell 211, and elastic component 2182 is used for making the second end of fastener 217 remain the trend to the motion of draw-in groove 141 all the time. The elastic member 2182 is always compressed between the first end of the engaging member 217 and the housing 211, so that the elastic member 2182 always pushes the first end of the engaging member 217 to move away from the housing 211, and the second end of the engaging member 217 always moves towards the slot 141. During installation, the second connector 2 is firstly inserted into the first connector 1, so that the second annular shell 14 extends into the shell 211, and then the second end of the clamping piece 217 is pressed downwards, so that the clamping piece 217 is clamped in the clamping groove 141, and the first connector 1 and the second connector 2 are locked; when the connector is disassembled, the first end of the clamping piece 217 is pressed downwards, so that the first end of the clamping piece 217 compresses the spring downwards and moves, the second end of the clamping piece 217 moves upwards and is separated from the clamping groove 141, and the second connector 2 and the first connector 1 can be disassembled; simple structure, convenient installation and operation.

Example 3:

the second connector provided in this embodiment is different from the second connector provided in embodiment 2 in that the second connector 2 of this embodiment includes two connecting means 21.

The outer end of the second ac electric terminal 214 of the first connecting device 21 is used for electrically connecting with a first connector electrically connected to a first electronic device, the outer end of the second ac electric terminal 214 of the second connecting device 21 is used for electrically connecting with a first connector 1 electrically connected to a second electronic device, and ac electric wires electrically connect the inner end of the second ac electric terminal 214 of the first connecting device 21 with the inner end of the second ac electric terminal 214 of the second connecting device 21;

the outer end of the second dc terminal 215 of the first connecting device 21 is used to electrically connect with the first connector 1 electrically connected to the first electronic device, the outer end of the second dc terminal 215 of the second connecting device 21 is used to electrically connect with the first connector 1 electrically connected to the second electronic device, and the dc power is electrically connected to the inner end of the second dc terminal 215 of the first connecting device 21 and the inner end of the second dc terminal 215 of the second connecting device 21;

the outer end of the second signal terminal 216 of the first connecting device 21 is used for electrically connecting with the first connector 1 electrically connected to the first electronic equipment, the outer end of the second signal terminal 216 of the second connecting device 21 is used for electrically connecting with the first connector 1 electrically connected to the second electronic equipment, and the signal wire electrically connects the inner end of the second signal terminal 216 of the first connecting device 21 with the inner end of the second signal terminal 216 of the second connecting device 21.

Compared with the prior art, the second connector 2 provided by the embodiment of the invention has the advantages that the two ends of the cable 22 are respectively fixed with the connecting device 21, so that one second connector 2 can be connected with the two first connectors 1, the first electronic equipment and the second electronic equipment are connected, and the connecting structure of the first electronic equipment and the second electronic equipment is simplified.

Example 4:

the invention provides an LED display screen, which comprises a first connector 1 mentioned in the embodiment 1, a second connector 2 mentioned in the embodiment 2 and a plurality of LED unit display screens, wherein the first connector 1 is fixed at one end of each LED unit display screen, and the inner end of a first alternating current terminal 15, the inner end of a first direct current terminal 16 and the inner end of a first signal terminal 17 are respectively and electrically connected with the LED unit display screens; a second connector 2 is fixed at the other end of the LED unit display screen, and the first end of the alternating current wire, the first end of the direct current wire and the first end of the signal wire are respectively and electrically connected with the LED unit display screen;

the second connector 2 of one LED unit display screen is inserted into the first connector 1 of the adjacent LED unit display screen, the mounting shell is fixedly connected with the mounting plate 11, the outer end of the first alternating current terminal 15 is electrically connected with the outer end of the second alternating current terminal 214, the outer end of the first direct current terminal 16 is electrically connected with the outer end of the second direct current terminal 215, and the outer end of the first signal terminal 17 is electrically connected with the outer end of the second signal terminal 216.

Compared with the prior art, in the LED display screen provided by the embodiment of the present invention, every two adjacent LED unit display screens in the LED display screen are connected together through the first connector 1 and the second connector 2, the first ac electric terminal 15 of the first connector 1 and the second ac electric terminal 214 of the second connector 2 are electrically connected to form an ac electric path connecting the two adjacent LED unit display screens, the first dc electric terminal 16 of the first connector 1 and the second dc electric terminal 215 of the second connector 2 are electrically connected to form a dc electric path connecting the two adjacent LED unit display screens, and the first signal terminal 17 of the first connector 1 and the second signal terminal 216 of the second connector 2 are electrically connected to form a signal path connecting the two adjacent LED unit display screens; when the alternating current circuit breaks down and is broken, the LED unit display screens can supply power to the adjacent LED unit display screens through the direct current circuit, so that the display of the LED unit display screens is ensured, compared with the existing first connector 1 and second connector 2 which only have the alternating current circuit, the LED unit display screens connected with the first connector 1 and the second connector 2 in series are prevented from being influenced when the alternating current circuit in the first connector 1 and the second connector 2 breaks down, the power failure phenomenon of the LED unit display screens is prevented, and the normal display of the LED display screens is ensured; the power states of the first connector and the second connector are identified through the signal circuit, when the signal circuit identifies the power failure of the alternating current circuit, the signal circuit sends out related indicating signals, and a user can replace the failed first connector 1 and the failed second connector 2 after the LED display screen is used up according to the indicating signals, so that the situation that the user cannot know the specific conditions of all parts of the LED display screen is avoided, and the maintenance of the LED display screen is facilitated.

Preferably, the first ac wire terminal, the first dc wire terminal and the first signal wire terminal are all conductive jacks, and the second ac wire terminal, the second dc wire terminal and the second signal wire terminal are all pins; or

The first alternating current wire terminal, the first direct current wire terminal and the first signal wire terminal are all contact pins, and the second alternating current wire terminal, the second direct current wire terminal and the second signal wire terminal are all conductive jacks.

Example 5:

the invention provides an LED display screen, which comprises a first connector 1 as described in the embodiment 1, a second connector 2 as described in the embodiment 3 and a plurality of LED unit display screens, wherein the first connector 1 is fixed at one end of each LED unit display screen, and the inner end of a first alternating current terminal 15, the inner end of a first direct current terminal 16 and the inner end of a first signal terminal 17 in the first connector 1 are respectively and electrically connected with the LED unit display screens; a second first connector 1 is fixed at the other end of the LED unit display screen, and the inner end of a first alternating current terminal 15, the inner end of a first direct current terminal 16 and the inner end of a first signal terminal 17 in the second first connector 1 are respectively and electrically connected with the LED unit display screen;

the first connecting device 21 of the second connector 2 is plugged with the first connector 1 of an LED unit display screen, the mounting shell of the first connecting device 21 is fixedly connected with the mounting plate 11 of the first connector 1, the outer end of the second alternating current terminal 214 of the first connecting device 21 is electrically connected with the outer end of the first alternating current terminal 15 of the first connector 1, the outer end of the second direct current terminal 215 of the first connecting device 21 is electrically connected with the outer end of the first direct current terminal 16 of the first connector 1, and the outer end of the second signal terminal 216 of the first connecting device 21 is electrically connected with the outer end of the first signal terminal 17 of the first connector 1;

the second connecting device 21 of the second connector 2 is plugged with the second first connector 1 of another LED unit display screen, the mounting shell of the second connecting device 21 is fixedly connected with the mounting plate 11 of the second first connector 1, the outer end of the second ac electric terminal 214 of the second connecting device 21 is electrically connected with the outer end of the first ac electric terminal 15 of the second first connector 1, the outer end of the second dc electric terminal 215 of the second connecting device 21 is electrically connected with the outer end of the first dc electric terminal 16 of the second first connector 1, and the outer end of the second signal terminal 216 of the second connecting device 21 is electrically connected with the outer end of the first signal terminal 17 of the second first connector 1.

Compared with the prior art, the LED display screen provided by the embodiment of the invention is beneficial to realizing the connection with the first connector 1 on the two adjacent LED unit display screens through one second connector 2, is beneficial to the connection and disconnection of the electric connection of the two adjacent LED unit display screens, is convenient for the insertion and the disassembly of the first connector 1 and the second connector 2, and improves the installation efficiency of the LED display screen.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.