Power connector, power distribution device and power transmission system

Abstract

The utility model provides a power supply connector, a power distribution device and a power transmission system, the power supply connector comprises a first joint and a second joint which are respectively arranged on two power transmission and distribution devices, the first joint is provided with a first embedding part, the second joint is provided with a second embedding part, and the first joint is provided with a plurality of power transmission pins. The first connector is provided with a first embedding part, the second connector is provided with a second embedding part, the second connector is provided with a power transmission butt joint part, and each power transmission butt joint part is internally provided with a pressing part, so that the two connectors can be firmly combined through embedding between the first embedding part and the second embedding part during butt joint, and the inserted power transmission pin can be pressed through the pressing parts, so that even when electric equipment moves and pulls the power connector, the power transmission pin can be tightly pressed. And the butt joint of the two joints is not easy to loosen, so that the power utilization reliability and safety in a mobile power utilization scene are ensured. Moreover, the first connector is provided with the signal pin, and the second connector is provided with the signal butt-joint piece, so that the corresponding electric signal detection can be realized through the signal pin and the signal butt-joint piece, and the electric safety is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of power transmission and distribution, and specifically relates to a power connector, a power distribution device and a power transmission system. Background Art

[0002] In scenes such as construction sites, there is often a need for remote power distribution and mobile power. For example, on a construction site, there are a variety of electrical equipment such as concrete mixers, floor polishing machines, and construction elevators. The power distribution cabinet closest to the construction site may be hundreds of meters away from the construction site or even farther away, and some electrical equipment needs to be moved while powered on to perform corresponding construction operations. For the power needs on such construction sites, the following power distribution method is generally used: insert an ordinary plug into the power socket on the distribution cabinet, extend the cable connected to the ordinary plug to the vicinity of the electrical equipment, connect the end of the cable to the socket dedicated to the construction site, and then plug the plug of the electrical equipment into the socket, thereby supplying power to multiple electrical equipment on the construction site. This power transmission and distribution method obviously has many hidden dangers.

[0003] On the one hand, the connection between ordinary plugs and sockets is not very firm. Once the electrical equipment starts to move and pulls the cables and ordinary plugs, the ordinary plugs may become loose from the sockets. At the same time, the movement, operation, and transportation of other equipment on the construction site may also cause bumps to the plugs, causing the ordinary plugs to become loose, leading to unexpected power outages, affecting the operation of electrical equipment, and even causing construction accidents.

[0004] On the other hand, the multiple cables connected to the power grid through the distribution cabinet, the dedicated sockets on the construction site and other mobile lines are all energized. Therefore, the construction workers on the construction site are also at risk of accidentally touching the conductive terminals and getting electric shock. Utility Model Content

[0005] The utility model is designed to solve the above problems and aims to provide a power connector, power distribution device and power transmission system that can firmly connect and supply power between power transmission cables and other power transmission and distribution equipment with higher safety. The utility model adopts the following technical solutions:

[0006] The utility model provides a power connector for connecting a first power transmission and distribution device with a second power transmission and distribution device, characterized in that it comprises: a first connector arranged on the first power transmission and distribution device; and a second connector arranged on the second power transmission and distribution device, wherein the first connector comprises a first main body with a first engaging portion and at least two power transmission needles and at least two signal needles penetrating the first main body, and the second connector comprises a second main body with a second engaging portion, and a corresponding number of power transmission docking pieces, a pressing piece and a signal docking piece penetrating the second main body, the second engaging portion is used to cooperate with the first engaging portion to engage the outer end of the first main body with the outer end of the second main body, the power transmission docking piece is tubular, and each of the pressing pieces is respectively arranged on the inner side of each of the power transmission docking pieces, and when the power transmission needle is inserted into the corresponding power transmission docking piece, the pressing piece is respectively in contact with the outer surface of the power transmission needle and the inner surface of the power transmission docking piece.

[0007] The power connector provided by the utility model may also have such a technical feature, wherein the first engaging portion has a square cylindrical protrusion and a mesh protrusion arranged on the inner side of the square cylindrical protrusion, a plurality of accommodating grooves are formed between the square cylindrical protrusion and the mesh protrusion, the power transmission pin and the signal pin are respectively arranged in each of the accommodating grooves, and the second engaging portion has a mesh engaging groove matching the mesh protrusion.

[0008] The power connector provided by the utility model may also have such a technical feature, wherein the accommodating slots are arranged in two rows and three columns, the two signal pins are arranged at the accommodating slots in the middle of one of the columns, and their arrangement direction is consistent with the column direction, and the power transmission pins are respectively arranged at each of the other accommodating slots, and two of the five power transmission pins serve as a ground pin and a neutral pin, respectively.

[0009] The utility model provides a power distribution device, characterized in that it comprises: a power distribution cabinet, at least one power transmission cable and at least one of the above-mentioned power connectors, wherein the first connector is arranged at one end of the power transmission cable, and the second connector is arranged on the cabinet body of the power distribution cabinet.

[0010] The power distribution device provided by the utility model may also have such technical features, wherein the power distribution cabinet has a ground wire, at least two power lines, at least one relay, a signal power supply and two signal lines respectively connected to the signal power supply, and in the second joint, the number of the power transmission docking parts is at least three, the number of the signal docking parts is two, one of the power transmission docking parts is connected to the ground wire, and the other power transmission docking parts are respectively connected to the corresponding power lines through the relays, one of the signal docking parts is connected to one of the signal lines, and the other of the signal docking parts is connected to the other of the signal lines through the relays.

[0011] The utility model provides a power distribution device, characterized in that it comprises: a mobile distribution box, at least one power transmission cable and at least one of the above-mentioned power connectors, wherein the first connector is arranged on the box body of the mobile distribution box, and the second connector is arranged at one end of the power transmission cable.

[0012] The power distribution device provided by the utility model may also have such technical features, wherein the mobile distribution box has a ground wire, at least two power lines, at least one relay, a signal power supply and two signal lines respectively connected to the signal power supply, and in the first connector, the number of the power transmission pins is at least three, the number of the signal pins is two, one of the power transmission pins is connected to the ground wire, and the other power transmission pins are respectively connected to the corresponding power lines through the relay, one of the signal pins is connected to one of the signal lines, and the other of the signal pins is connected to the other of the signal lines through the relay.

[0013] The power distribution device provided by the utility model may also have such a technical feature, wherein the two signal lines are a positive signal line and a negative signal line, respectively connected to the positive and negative poles of the signal power supply, and the signal power supply is an independent 5V~24V power supply or a power supply provided by the transmission line that is transformed.

[0014] The power distribution device provided by the utility model may also have such a technical feature, wherein there are multiple transmission cables, and several of the transmission cables are connected in sequence through the power connector.

[0015] The utility model provides a power transmission system, characterized in that it comprises: at least one power distribution device as mentioned above, which is used for distributing electric energy to power-consuming equipment.

[0016] Function and effect of utility model

[0017] According to the power connector, power distribution device and power transmission system of the utility model, it includes a first connector arranged on a first power transmission and distribution device and a second connector arranged on a second power transmission and distribution device, wherein, since the first connector has a first interlocking portion, the second connector has a second interlocking portion that can be interlocked therewith, and the first connector has a plurality of power transmission needles, the second connector has a corresponding number of power transmission docking parts, and each power transmission docking part is provided with a pressing part, so when the first connector and the second connector are docked, the two connectors can be firmly combined by the interlocking between the first interlocking portion and the second interlocking portion, and the power transmission needle inserted into the power transmission docking part can be pressed by the pressing part, so that even when the power-consuming equipment moves and pulls the first connector or the second connector, the docking between the two is not easy to loosen, thereby ensuring the reliability and safety of power consumption in mobile power consumption scenarios. In addition, since the first connector has at least two signal needles and the second connector has a corresponding number of signal docking parts, the corresponding power signal detection can also be realized by the signal needle and signal docking part independent of the power transmission needle, thereby further improving the safety of power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the power distribution device in the first embodiment of the utility model;

[0019] Figure 2 It is a three-dimensional diagram of the first joint in the first embodiment of the utility model;

[0020] Figure 3 It is a structural exploded view of the first joint in the first embodiment of the utility model;

[0021] Figure 4 It is a three-dimensional diagram of the first main body in the first embodiment of the utility model;

[0022] Figure 5 It is a three-dimensional diagram of the first main body in the first embodiment of the utility model at different angles;

[0023] Figure 6 It is an orthographic projection diagram of the first main body in the first embodiment of the utility model;

[0024] Figure 7 It is a cross-sectional view of the first main body in the first embodiment of the utility model;

[0025] Figure 8 It is a three-dimensional diagram of the first housing in the first embodiment of the utility model;

[0026] Fig. 9 It is a three-dimensional diagram of the first housing at different angles in the first embodiment of the utility model;

[0027] Fig.10 It is a three-dimensional diagram of the first fixed cover in the first embodiment of the utility model;

[0028] Fig.11 It is a three-dimensional diagram of the power transmission needle in the first embodiment of the utility model;

[0029] Fig.12 It is a three-dimensional diagram of the signal needle in the first embodiment of the utility model;

[0030] Fig.13 is a cross-sectional view of the first joint in the first embodiment of the utility model;

[0031] Fig.14 is a three-dimensional diagram of the second joint in the first embodiment of the utility model;

[0032] Fig.15 It is a structural exploded view of the second joint in the first embodiment of the utility model;

[0033] Fig.16 It is a three-dimensional diagram of the second main body in the first embodiment of the utility model;

[0034] Fig.17 It is a three-dimensional diagram of the second housing in the first embodiment of the utility model;

[0035] Fig.18 It is a three-dimensional diagram of the power transmission docking piece in the first embodiment of the utility model;

[0036] Fig.19 It is a three-dimensional diagram of the signal docking member in the first embodiment of the utility model;

[0037] Fig. 20 This is a schematic diagram of the circuit structure in the power distribution cabinet in the first embodiment of the utility model;

[0038] Fig.21 It is a three-dimensional diagram of the power distribution device in the second embodiment of the utility model;

[0039] Fig. 22 It is a structural exploded view of the second joint in the second embodiment of the utility model;

[0040] Fig.23 It is a three-dimensional diagram of the power distribution device in the third embodiment of the utility model;

[0041] Fig.24 It is a three-dimensional diagram of the first joint in the third embodiment of the present utility model;

[0042] Fig.25 It is a three-dimensional diagram of the power transmission system in the fourth embodiment of the utility model.

[0043] Reference numerals:

[0044] Power connector 100; first connector 10; first main body 11; first engaging portion 111; square cylindrical protrusion 1111; receiving groove 111a; grid-shaped protrusion 1112; columnar protrusion 1113; first mounting portion 112; mounting main body 1121; power transmission pin mounting hole 1121a; signal pin mounting hole 1121b; circular transition groove 1121c; square transition groove 1121d; flange 1122; wedge-shaped protrusion 11221; square-shaped protrusion 11222; third engaging portion 113; annular protrusion 1131; circular embedding groove 1131a; square frame-shaped protrusion 1132; square embedding groove 1132a; first housing 12; Shell body 121; limiting protrusion 1211; guide groove 121a; snap groove 121b; shell connecting part 122; cylindrical part 1221; column part 1222; snap part 123; snap frame 1231; snap part 1232; pressing part 1233; pressing connecting part 1234; first fixing cover 13; cylindrical protrusion 131; square frame protrusion 132; first cable fastener 14; power transmission needle 15; power transmission needle tail 151; power transmission needle limiting part 152; truncated cone section 1521; cylindrical section 1522; first disc-shaped section 1523; second disc-shaped section 1524; power transmission needle plug-in part 153; signal needle 16 ;Signal pin limiting portion 161;Signal pin fitting portion 162;Signal pin plug-in portion 163;First docking seal ring 171;First cable seal ring 172;Electrical box fixing member 18;Second connector 20;Second main body 21;Second fitting portion 211;Power transmission docking member mounting hole 211a;Signal docking member mounting hole 211b;Network-shaped embedding groove 211c;Strip-shaped embedding groove 211d;Fourth embedding portion 212;Second housing 22;Flange 221;Catching protrusion 222;Bag 22a;Incision 22b;Second fixing cover 23;Mounting seat 24;Power transmission docking member 25;Power transmission docking member tail 251;Power transmission docking member limiting portion 252; The power transmission docking piece docking portion 253; the power transmission needle docking groove 253a; the signal docking piece 26; the signal docking piece limiting portion 261; the arc plate portion 2631; the cutout 263a; the signal docking piece fitting portion 262; the signal docking piece docking portion 263; the pressing piece 27; the second docking sealing ring 281; the second shell sealing ring 282; the second sealing gasket 283; the second cable sealing ring 284; the second cable fastener 29; the distribution cabinet power connector 101; the cable power connector 102; the distribution box input power connector 103; the distribution box output power connector 104; the power transmission cable 200; the distribution cabinet 300; the mobile distribution box 400. DETAILED DESCRIPTION

[0045] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the power connector and power transmission system of the present invention are specifically described below in conjunction with embodiments and drawings.

[0046] <Example 1>

[0047] This embodiment provides a power transmission system for remote power distribution to power-consuming equipment on a construction site and for mobile power consumption of the power equipment. The power transmission system includes at least one power distribution device for distributing electric energy to the power-consuming equipment.

[0048] Figure 1 It is a three-dimensional diagram of the power distribution device in this embodiment.

[0049] like Figure 1 As shown, the power distribution device of this embodiment includes a power distribution cabinet 300 , a power transmission cable 200 , and a power connector 100 . The power connector 100 is used to electrically connect the power transmission line in the power distribution cabinet 300 with the core in the power transmission cable 200 .

[0050] The power connector 100 includes a first connector 10 (male plug) and a second connector 20 (female power socket). The first connector 10 is installed at one end of the power transmission cable 200, and the second connector 20 is installed on the power distribution cabinet 300. The first connector 10 and the second connector 20 are plugged together, so that the power transmission cable 200 and the power distribution cabinet 300 are electrically connected, so that the electric energy is distributed to the power transmission cable 200 through the power distribution cabinet 300, and then transmitted to the power equipment on the construction site through the power transmission cable 200. According to the distance between the power equipment and the power distribution cabinet, the power transmission cables of different lengths can be replaced and used.

[0051] Figure 2 is a stereogram of the first joint in this embodiment, Figure 3 It is a structural exploded view of the first joint in this embodiment.

[0052] like Figure 2 and Figure 3 As shown, the first connector 10 includes a first main body 11 , a first shell 12 , a first fixing cover 13 , a first cable fastener 14 , five power transmission pins 15 , two signal pins 16 , a first docking seal ring 171 and a first cable seal ring 172 .

[0053] Figure 4 is a three-dimensional diagram of the first body in this embodiment, Figure 5 1 is a stereogram of the first body at different angles in this embodiment. Figure 6 is an orthographic projection diagram of the first subject in this embodiment, Figure 7 is a cross-sectional view of the first body in this embodiment.

[0054] like Figures 4 to 7 As shown, the first body 11 includes a first engaging portion 111 , a first mounting portion 112 and a third engaging portion 113 .

[0055] The first mounting portion 112 is used to mount the power transmission pin 15 and the signal pin 16 . The first mounting portion 112 includes a mounting body 1121 and a flange 1122 .

[0056] The mounting body 1121 is block-shaped, and its cross section in the thickness direction is a rounded rectangular shape. The mounting body 1121 has five power transmission needle mounting holes 1121a and two signal needle mounting holes 1121b that penetrate along its thickness direction. Among them, the shape of the power transmission needle mounting hole 1121a is adapted to the power transmission needle 15, and it includes a cylindrical section with a smaller diameter, a conical section, and a cylindrical section with a larger diameter that are coaxially arranged in sequence. The signal needle mounting hole 1121b is a circular hole. The mounting body 1121 also has five circular transition grooves 1121c that are respectively connected to each power transmission needle mounting hole 1121a, and a square transition groove 1121d that is connected to the two signal needle mounting holes 1121b. In addition, slightly raised "A", "B", "C", "E", and "O" are respectively arranged on the end faces of the mounting body 1121 next to the five transmission pin mounting holes 1121a, and slightly raised "L1" and "L2" are respectively arranged on the end faces of the mounting body 1121 next to the two signal pin mounting holes 1121b, so as to facilitate users to identify the functions of each transmission pin 15 and signal pin 16.

[0057] The flange 1122 protrudes outward from the periphery of one end in the thickness direction of the mounting body 1121, and the outer contour of the cross section of the flange 1122 is also a rounded rectangular shape. The middle of the outer wall of the two relatively shorter sides of the flange 1122 is further provided with a wedge-shaped protrusion 11221 that further protrudes outward, and the middle of the outer wall of the two relatively longer sides is further provided with a block-shaped protrusion 11222 that further protrudes outward.

[0058] The first engaging portion 111 is used to engage with one end of the second joint 20. The first engaging portion 111 includes a square cylindrical protrusion 1111, a grid-like protrusion 1112 and two columnar protrusions 1113, all of which extend perpendicularly to an end face of the mounting body 1121 in the thickness direction, and the extension lengths are substantially the same. Among them, the cross-sectional shape of the square cylindrical protrusion 1111 is a rounded rectangle, and its outer diameter is substantially consistent with the outer diameter of the mounting body 1121. The grid-like protrusion 1112 can be regarded as formed by three strip-like protrusions staggered with each other, and a rounded corner is provided at the connection position of the two strip-like protrusions. The grid-like protrusion 1112 is arranged on the inner side of the square cylindrical protrusion 1111, and the space inside the square cylindrical protrusion 1111 is roughly divided into six receiving grooves 111a in three rows and two columns. The three power transmission needle mounting holes 1121a are respectively arranged corresponding to the three receiving grooves 111a in one row, the other two power transmission needle mounting holes 1121a are respectively arranged corresponding to the two receiving grooves 111a on both sides of the other row, the two signal needle mounting holes 1121b are arranged corresponding to the one receiving groove 111a in the middle of the other row, and the arrangement direction of the two signal needle mounting holes 1121b is consistent with the width direction of the first body 11. The columnar protrusion 1113 is in the shape of a square column and is arranged at the inner side walls of the two short sides of the square cylindrical protrusion 1111.

[0059] The third engaging portion 113 is used to engage with one end of the first fixing cover 13. The third engaging portion 113 includes five annular protrusions 1131 and a square frame protrusion 1132. The five annular protrusions 1131 are coaxially arranged with the five power transmission needle mounting holes 1121a and the corresponding circular transition grooves 1121c, respectively, and the inner diameter of the annular protrusion 1131 is larger than the diameter of the circular transition groove 1121c, thereby forming a circular embedding groove 1131a connected to the circular transition groove 1121c. The square frame protrusion 1132 is arranged corresponding to the square transition groove 1121d, and the size of the inner circle of the square frame protrusion 1132 is larger than the size of the square transition groove 1121d, thereby forming a square embedding groove 1132a connected to the square transition groove 1121d.

[0060] Figure 8 is a three-dimensional diagram of the first shell in this embodiment, Fig. 9 It is a stereoscopic view of the first shell at different angles in this embodiment.

[0061] like Figure 8 and Fig. 9 As shown, the first shell 12 is used to accommodate the first body 11 , the power transmission pin 15 and the signal pin 16 , etc. The first shell 12 includes a shell body 121 , a shell connecting portion 122 and two buckle portions 123 .

[0062] The shell body 121 is in the shape of a square tube with rounded corners. Two guide grooves 121a are respectively provided on the inner side walls on both sides of the width direction of the shell body 121. The guide grooves 121a extend from one end of the shell body 121 to the shell body 121 along the length direction of the shell body 121, and are used to cooperate with the two square block-shaped protrusions 11222 on the first body 11 to guide when the first body 11 is installed in the shell body 121. Two square clamping grooves 121b are respectively provided on the inner side walls on both sides of the thickness direction of the shell body 121. In the length direction of the shell body 121, the clamping grooves 121b and one end of the guide grooves 121a in the shell body 121 are located at the same height. The clamping grooves 121b are used to engage with the two wedge-shaped protrusions 11221 on the first body 11, so as to fix the first body 11 in the shell body 121. In addition, four limiting protrusions 1211 are respectively provided on the four inner walls of the shell body 121. In the length direction of the shell body 121, the four limiting protrusions 1211 are arranged at the same height and are farther away from one end of the shell body 121 than the snap-in groove 121b, so as to limit the first body 11 when it is inserted into the shell body 121.

[0063] The shell connecting portion 122 extends from one end of the shell body 121 in the length direction, and has a cylindrical portion 1221 and a plurality of column portions 1222 arranged on the outer end of the cylindrical portion 1221. The outer surface of the cylindrical portion 1221 is provided with an external thread. The extension direction of the column portion 1222 is consistent with the length direction of the shell body 121. The cross section of the column portion 1222 is a quadrilateral, two angles of the quadrilateral are obtuse angles, and the other two angles are acute angles. The smallest acute angle of each column portion 1222 faces the same side along the circumference of the cylindrical section 1221.

[0064] The two buckle parts 123 are respectively arranged at both ends of the shell body 121 in the width direction and close to one end of the shell body 121 in the length direction. Along the length direction of the shell body 121, the buckle part 123 is partially located outside one end of the shell body 121. The buckle part 123 includes a buckle frame 1231, a buckle part 1232, a pressing part 1233, and a pressing connection part 1234.

[0065] The buckle frame 1231 is substantially in the shape of a square frame and is fixed on the outer surface of the shell body 121 .

[0066] The snap-fit ​​portion 1232 is used for snap-fitting and fixing with a corresponding structure on the second joint 20 , and includes a plate-shaped portion and a wedge-shaped portion provided on one surface of the plate-shaped portion, and the two wedge-shaped portions are opposite to each other.

[0067] The pressing portion 1233 is used for being pressed by a user and is block-shaped and slightly protrudes from the outside of the buckle frame 1231 .

[0068] The pressing connection portion 1234 is in a plate shape, connecting the pressing portion 1233 and the buckle portion 1232 , so that when the two pressing portions 1233 are pressed, the wedge-shaped portions on the two buckle portions 1232 move away from each other.

[0069] Fig.10 It is a three-dimensional diagram of the first fixed cover in this embodiment.

[0070] like Fig.10 As shown, the first fixing cover 13 is in the shape of a flat square cover with rounded corners, and the inner surface of the top thereof has five cylindrical protrusions 131 and one square frame-shaped protrusion 132, which are distributed correspondingly to the distribution of the five circular embedding grooves 1131a and one square embedding groove 1132a on the first main body 11. The cylindrical protrusion 131 can be embedded in the corresponding circular embedding groove 1131a, and the inner diameter of the cylindrical protrusion 131 is smaller than the maximum diameter of the power transmission needle 15, so the power transmission needle 15 can be fixed by the first fixing cover 13 and the first main body 11 that are embedded with each other.

[0071] The first cable fastener 14 is generally in the shape of a dome, and its inner side surface has an internal thread, and is used to be installed on the cylindrical portion 1221 of the first housing 12. The middle portion of the top surface of the first cable fastener 14 has a through cable access hole, which can allow one end of the power transmission cable 200 to pass through and slightly clamp it. In addition, the first cable fastener has a plurality of slightly concave outer side surfaces, so that the middle shape thereof is similar to a hexagonal screw, which is convenient for hand twisting.

[0072] The five power transmission pins 15 are respectively inserted into the five power transmission pin installation holes 1121a and fixed by the first fixing cover 13. One of the power transmission pins 15 (the power transmission pin marked with "E" on the side) is used as a ground pin, one of the power transmission pins 15 (the power transmission pin marked with "O" on the side) is used as a neutral pin, and the other three power transmission pins 15 are used as power pins to connect the three phase lines respectively.

[0073] Fig.11 3D is a perspective view of the power transmission needle in this embodiment.

[0074] like Fig.11 As shown, the power transmission needle 15 is made of conductive material, and includes a power transmission needle tail portion 151, a power transmission needle limiting portion 152 and a power transmission needle plug-in portion 153 which are coaxially connected in sequence.

[0075] The tail portion 151 of the power transmission needle is cylindrical and has a tail access groove.

[0076] The power transmission needle stopper 152 includes a truncated cone section 1521, a cylindrical section 1522, a first disc-shaped section 1523 having a diameter larger than the cylindrical section, and a second disc-shaped section 1524 having a diameter larger than the cylindrical section and smaller than the first disc-shaped section. The shape of the power transmission needle installation hole 1121a matches the shape of the power transmission needle stopper 152, and the inner diameter of the cylindrical protrusion 131 on the first fixing cover 13 is at least smaller than the diameter of the first disc-shaped section 1523.

[0077] The power transmission needle plug part 153 is cylindrical, and its diameter is smaller than the power transmission needle tail part 151 and the power transmission needle stopper 152. The outer end of the power transmission needle plug part 153 has a rounded corner.

[0078] In this embodiment, the sizes of the five power transmission needles 15 are all the same.

[0079] Fig.12 is a three-dimensional diagram of the signal pin in this embodiment.

[0080] like Fig.12 As shown, the signal pin 16 is also made of a conductive material, and includes a signal pin limiting portion 161 , a signal pin fitting portion 162 and a signal pin plugging portion 163 which are coaxially connected in sequence.

[0081] The signal needle limiting portion 161 includes a cylindrical section and a semi-cylindrical section, and a connection notch is formed at the outer end of the signal needle limiting portion 161 .

[0082] The signal needle fitting portion 162 includes a coaxially connected cylindrical section and a truncated cone section. The diameter of the cylindrical section is smaller than the diameter of the signal needle limiting portion 161 , and the maximum diameter of the truncated cone section is slightly larger than the cylindrical section, so a step is formed between the two.

[0083] The signal pin inserting portion 163 is cylindrical and has a chamfered outer end.

[0084] In this embodiment, the two signal pins 16 have the same size, and the overall diameter of the signal pin 16 is much smaller than that of the power transmission pin 15 .

[0085] Fig.13 It is a cross-sectional view of the first connector in this embodiment. To show the relative positional relationship between the plurality of power transmission pins 15 and the signal pins 16, the first body 11 is omitted in the figure, and the position of one end surface of the first body 11 is shown by a dotted line.

[0086] like Fig.13As shown, the power transmission pin 15 as the ground pin and the power transmission pin 15 as the neutral pin are arranged in the same row, and the protruding height relative to the end face A1 of the first body 11 is 1.5 mm greater than the protruding height of the other three power transmission pins. The protruding height of the two signal pins 16 is only 3 mm, which is obviously smaller than all the power transmission pins 15. In this way, when the first connector 10 is plugged into the second connector 20, the ground pin and the neutral pin will be connected first, and then the three power pins will be connected. After the plugging is in place, the two signal pins 16 can be connected.

[0087] The power transmission cable 200 has a sheath and a plurality of wire cores arranged inside the sheath, including five power transmission wire cores and two signal wire cores. When one end of the power transmission cable 200 is connected to the first connector 10, the five power transmission wire cores are respectively embedded in the connection grooves of the five power transmission pins 15 to connect with the power transmission pins, and the two signal wire cores are respectively connected to the outer ends of the signal pin limit portions 161 of the two signal pins 16.

[0088] The first butt seal ring 171 is annular and is sleeved on the outer circumference of the first fitting portion 111 , and is used to seal between the first connector 10 and the second connector 20 when they are butt-jointed.

[0089] The first cable sealing ring 172 is cylindrical and is arranged in the inner ring of the plurality of column portions 1222. When one end of the power transmission cable 200 is installed in the first housing 12, the one end of the power transmission cable 200 is sealed between the first housing 12. The one end of the power transmission cable 200 is in contact with the plurality of column portions 1222 through the first cable sealing ring 172, and the plurality of column portions 1222 are slightly spread apart in the radial direction. An edge of the column portion 1222 (corresponding to an acute angle of its quadrilateral cross section) clamps the first cable sealing ring 172, thereby fixing one end of the power transmission cable 200.

[0090] Fig.14 is a stereogram of the second joint in this embodiment, Fig.15 It is a structural exploded view of the second joint in this embodiment.

[0091] like Fig.14 and Fig.15 As shown, the second connector 20 includes a second main body 21, a second shell 22, a second fixing cover 23, a second seat body 24, five power transmission docking parts 25, five signal docking parts 26, five clamping parts 27, a second docking sealing ring 281, a second shell sealing ring 282, and a second sealing gasket 283.

[0092] Fig.16 It is a three-dimensional diagram of the second body in this embodiment.

[0093] like Fig.16 As shown, the second body 21 includes a second embedding portion 211 and a fourth embedding portion 212 .

[0094] The shape of the second interlocking portion 211 matches that of the first interlocking portion 111, and is used to interlock with the first interlocking portion 111. The second interlocking portion 211 is generally block-shaped, and its cross-section in the thickness direction is generally a rounded rectangle. The second interlocking portion 211 has five power transmission docking piece mounting holes 211a, two signal docking piece mounting holes 211b, a mesh embedding groove 211c matching the mesh-shaped protrusion 1112, and two strip embedding grooves 211d matching the columnar protrusion 1113. The five power transmission docking piece mounting holes 211a and the two signal docking piece mounting holes 211b are distributed next to the mesh embedding groove 211c, and their positions correspond to the five power transmission pin mounting holes 1121a and the two signal pin mounting holes 1121b, respectively. Each power transmission docking member installation hole 211a is a through circular hole, and a conical surface is formed at one end of the end surface of the power transmission docking member installation hole 211a, so that the diameter at the hole opening is larger than the inner hole diameter, making it easier for the power transmission needle 15 to be inserted. The same is true for the signal needle installation hole 1121b.

[0095] In addition, similarly, on the end faces of the second fitting portion 211 next to the five power transmission docking component mounting holes 211a, slightly raised "A", "B", "C", "O", and "E" are respectively provided; on the end faces of the second fitting portion 211 next to the two signal pin mounting holes 1121b, slightly raised "L1" and "L2" are respectively provided.

[0096] The shape of the fourth interlocking portion 212 is similar to that of the third interlocking portion 113, and the structure of the second fixing cover 23 is also similar to that of the first fixing cover 13. The cylindrical protrusion and the square protrusion on the second fixing cover 23 are respectively interlocked with the circular embedding groove and the square embedding groove on the fourth interlocking portion 212, thereby fixing the power transmission docking piece 25.

[0097] Fig.17 4 is a three-dimensional diagram of the second shell in this embodiment.

[0098] like Fig.17 As shown, the second housing 22 is generally in the shape of a square tube with rounded corners, and has a circle of flanges 221 on its outer circumference. On the flanges 221 on both sides of the width direction of the second housing 22, there are further outwardly protruding snap protrusions 222. The snap protrusions 222 are wedge-shaped and are used to cooperate with the two snap parts 1232 on the first housing 12 to snap the first connector 10 and the second connector 20. A plurality of rectangular snap openings 22a and cutouts 22b are provided on one end of the second housing 22 for snap connection with the mounting seat 24.

[0099] The mounting seat 24 includes a plate-shaped mounting portion and a cylindrical portion extending from the middle of the mounting portion, and the inner side of the cylindrical portion is a through mounting hole. The cylindrical portion matches with the end of the second housing 22 having the bayonet, and the inner surface of the cylindrical portion has a plurality of wedge-shaped protrusions respectively matching with the plurality of bayonet 22a of the second housing 22. After the end of the second housing 22 is installed in the cylindrical portion of the mounting seat 24, the end is fixed by the buckle.

[0100] Fig.18 It is a three-dimensional diagram of the power transmission docking piece in this embodiment.

[0101] like Fig.18 As shown, the power transmission docking piece 25 is made of conductive material and is generally tubular in shape. It is used to dock with the power transmission needle 15 and includes a power transmission docking piece tail portion 251, a power transmission docking piece limiting portion 252 and a power transmission docking piece docking portion 253 that are coaxially connected in sequence.

[0102] The tail portion 251 of the power transmission docking piece is cylindrical and has a tail access groove.

[0103] The power transmission docking piece limiting portion 252 includes a first circular plate segment having a diameter larger than that of the power transmission docking piece tail portion 251 and a second circular plate segment having a diameter larger than that of the power transmission docking piece tail portion 251 and smaller than that of the first circular plate segment, which are connected in sequence.

[0104] The power transmission docking part 253 is cylindrical, with a diameter slightly larger than the power transmission docking part tail 251 and smaller than the first circular plate segment. The outer end of the power transmission docking part 253 has a power transmission needle docking groove 253a, which is a cylindrical groove and is not connected to the tail access groove. The power transmission needle docking groove 253a has a conical surface at the notch, so that the notch diameter is larger than the inner diameter of the groove, so as to facilitate access.

[0105] Fig.19 4 is a three-dimensional diagram of the signal docking member in this embodiment.

[0106] like Fig.19 As shown, the signal docking member 26 is also made of conductive material and is generally tubular in shape for docking with the signal pin 16 . It includes a signal docking member limiting portion 261 , a signal docking member engaging portion 262 and a signal docking member docking portion 263 , which are coaxially connected in sequence.

[0107] The signal docking member limiting portion 261 includes a cylindrical section and a semi-cylindrical section, and also forms a notch at the outer end.

[0108] The signal docking member engaging portion 242 includes a coaxially connected cylindrical section and a truncated cone section, with a step formed therebetween.

[0109] The signal docking part 263 is generally cylindrical in shape, and the outer end of the signal docking part 263 has two arc-shaped plate portions 2631. The extension direction of the arc-shaped plate portion 2631 is consistent with the axial direction of the signal docking part 26. Along its extension direction, the cross-section of the arc-shaped plate portion 2631 is semicircular. A long strip-shaped cutout 263a is formed between the two arc-shaped plate portions 2631. In a free state (i.e., when the signal pin 16 is not connected), the inner diameter of the cylinder formed by the two arc-shaped plate portions 2631 is slightly smaller than the outer diameter of the signal pin plug-in portion 163 of the signal pin 16. After the signal pin 16 is inserted, the two arc-shaped plate portions 2631 are stretched apart, and the end of the signal pin 16 can be clamped by utilizing the restoring force of the arc-shaped plate portions 2631.

[0110] The pressing member 27 is made of a conductive material and is installed inside the power transmission docking member 25 to press the power transmission needle 15 inserted into the power transmission docking member 25. In this embodiment, the pressing member 27 is a crown spring.

[0111] The second butt seal ring 281 is annular and is sleeved on the second housing 22 , and is used to seal between the housings of the second connector 20 and the first connector 10 when they are butt-jointed.

[0112] The second housing sealing ring 282 is installed between the second housing 22 having a bayonet end and the mounting seat 24 to seal therebetween.

[0113] The second sealing gasket 283 is installed between the mounting base 24 and the cabinet body of the power distribution cabinet 300 to seal the two.

[0114] Fig. 20 It is a schematic diagram of the circuit structure in the power distribution cabinet in this embodiment.

[0115] like Fig. 20 As shown, the power distribution cabinet 300 has a grounding wire E, a neutral wire O and three phase wires A, B, and C connected to the power grid, as well as a 12V signal power supply, two signal lines (positive and negative signal lines), and multiple relays K1, K2, etc. One power transmission docking piece 25 in the second connector 20 is connected to the ground wire, one power transmission docking piece 25 is connected to the neutral wire, and the other three power transmission docking pieces 25 are connected to the corresponding phase lines through corresponding relays. Both the positive and negative signal lines are connected to the signal power supply, one signal docking piece 26 is connected to the positive signal line, and another signal docking piece 26 is connected to the positive signal line on the corresponding relay, and the negative signal line of the relay is connected to the negative signal line. In this embodiment, the signal power supply is a 12V power supply independent of the power grid.

[0116] In this embodiment, the materials of the first body 11, the first shell 12, the first fixing cover 13, the first cable fastener 14, the second body 21, the second shell 22, the second fixing cover 23 and the second seat 24 are all PA68. The materials of the sealing ring and the sealing gasket are all rubber. The main body materials of the power transmission needle 15, the signal needle 16, the power transmission docking piece 25 and the signal docking piece 26 are all pure copper, and the surface is silver-plated. The material of the pressing piece 27 is pure copper.

[0117] The power connector 100 of this embodiment is used to transmit 380V, 50A electric energy. Based on its material and structure, its waterproof and dustproof level is IP68, its voltage resistance level is 1500V, its carrying current is 50A, and its carrying current in a short time is 120A. The insulation resistance is greater than or equal to 100MΩ, the contact resistance is less than or equal to 10mΩ, and the current at a temperature rise of 18°C ​​is 53A.

[0118] When in use, the first engaging portion 111 on the first connector 10 is roughly aligned with the second engaging portion 211 on the second connector 20, and the first connector 10 is inserted toward the second connector 20 until the snap portion on the first shell 12 is snapped with the snap protrusion on the second shell 22. At this time, the first engaging portion 111 and the second engaging portion 211 are engaged with each other, and are clamped to each other through the first docking sealing ring 171 and the snap structure. The five power transmission needles 15 are respectively docked with the five power transmission docking parts 25 and are clamped by the clamping parts 27 therein, and the two signal needles 16 are respectively docked with the two signal docking parts 26, so that electric energy can be transmitted from the distribution cabinet 300 to the power-consuming equipment along the transmission cable 200.

[0119] When use is finished, press the pressing parts 1233 of the two snap parts on the first shell 12 at the same time to move the pair of snap parts 1232 away from each other, thereby releasing the snap fixation between the shells of the first connector 10 and the second connector 20, and then the first connector 10 can be pulled out more easily.

[0120] When a second connector 20 on the power distribution cabinet 300 is connected to the first connector 10 and the power transmission cable 200, and the other end of the power transmission cable 200 is connected to the power-consuming device, the other end of the power transmission cable 200 may also be provided with the first connector 10, and the two signal pins 16 of the first connector 10 are short-circuited. In this way, the two short-circuited signal pins 16, the two signal docking pieces 26, the two signal wire cores in the power transmission cable 200, the two signal wires in the power distribution cabinet 300 and the corresponding relay form a connected signal loop, and the 12V signal electricity is input to the relay, and the relay connects the corresponding power transmission line with the power transmission pin 15 in the second connector 20, so that the power-consuming device can be supplied with electric energy. When a second connector 20 is not used, the corresponding connected signal loop is not formed, and the corresponding relay keeps the power transmission line and the power transmission docking piece disconnected.

[0121] Example 1 Function and Effect

[0122] According to the power connector, power distribution device and power transmission system provided in this embodiment, it includes a first connector arranged on a first power transmission and distribution device and a second connector arranged on a second power transmission and distribution device, wherein, since the first connector has a first interlocking portion, the second connector has a second interlocking portion that can be interlocked therewith, and the first connector has a plurality of power transmission needles, the second connector has a corresponding number of power transmission docking parts, and each power transmission docking part is provided with a pressing part, so when the first connector and the second connector are docked, the two connectors can be firmly combined by the interlocking between the first interlocking portion and the second interlocking portion, and the power transmission needle inserted into the power transmission docking part can be pressed by the pressing part, so that even when the power-consuming equipment moves and pulls the first connector or the second connector, the docking between the two is not easy to loosen, thereby ensuring the reliability and safety of power consumption in mobile power consumption scenarios. In addition, since the first connector has at least two signal needles and the second connector has a corresponding number of signal docking parts, the corresponding power signal detection can also be realized by the signal needle and signal docking part independent of the power transmission needle, thereby further improving the safety of power consumption.

[0123] In the embodiment, the first connector and the second connector respectively have a first embedding portion and a second embedding portion, the first embedding portion has a mesh protrusion and a columnar protrusion, and the second embedding portion has a corresponding mesh embedding groove and a strip embedding groove, so that the first connector and the second connector can be firmly and stably engaged through the embedding of the first embedding portion and the second embedding portion, further ensuring that the docking of the two will not loosen when the electrical equipment moves, and in the first connector, multiple power transmission pins and signal pins are insulated and separated by annular protrusions and multiple strip protrusions, and the same is true for the second connector, so it can also effectively avoid short circuits of power transmission pins, signal pins, etc., further ensuring the safety of electricity use.

[0124] In the embodiment, among the five power transmission pins, since the protruding heights of the ground pin and the neutral pin are greater than those of the three power pins, when the first connector is plugged into the second connector, the ground pin and the neutral pin will be connected before the three power pins, that is, before starting to transmit power, the electrical equipment will be grounded first, thereby ensuring the safety of the user when plugging the first connector and the second connector.

[0125] In the embodiment, a signal circuit is formed by two signal pins, two signal docking parts, two signal lines in a distribution cabinet, a relay, etc. Only when the signal pin is docked with the signal docking part and the other end of the transmission cable is connected to an electrical device, a complete signal circuit is formed and the relay connects the corresponding line to supply power. For connectors that are not docked and lines that are not connected to electrical devices, power is not supplied. While meeting the power needs of mobile equipment, it can effectively prevent users from getting electric shocks due to accidentally touching the conductive terminals of other lines, further improving the safety of electricity use.

[0126] Furthermore, since the protruding height of the two signal pins is much smaller than that of the power transmission pins, and the signal docking piece and the power transmission docking piece are in the same axial position, the first connector and the second connector must be docked in place before the corresponding circuit will be energized. This design can ensure that the two connectors are docked in place, further preventing loosening during use.

[0127] In the embodiment, based on the structure and materials of the power connector, it has a very high withstand voltage level, a very high short-time carrying current, and a very high insulation resistance, so it is very safe to use in places such as airports, and even if problems such as current fluctuations are caused by problems with electrical equipment, the normal transmission and distribution of power can be guaranteed. In addition, based on the structure and materials of the power connector, it can also achieve IP68 level waterproof and dustproof, so even if there is rain or water accumulation at the airport, it will not affect the normal operation of the power connector, making it more applicable.

[0128] <Example 2>

[0129] This embodiment provides a power transmission system. In this embodiment, the same symbols are given to the same components as those in the first embodiment and the corresponding descriptions are omitted.

[0130] Fig. 20 It is a three-dimensional diagram of the power distribution device in this embodiment.

[0131] like Fig. 20 As shown, compared with the first embodiment, the difference is that the power distribution device of this embodiment includes multiple power transmission cables 200 and multiple power connectors 100 ′, and the power connector 100 ′ is used to electrically connect the cores of two adjacent power transmission cables 200 .

[0132] In the power connector 100 ′ of this embodiment, the structure of the first connector 10 is the same as that in the first embodiment, and the structure of the second connector 20 ′ is different.

[0133] Fig.21 It is a structural exploded view of the second joint in this embodiment.

[0134] like Fig.21 As shown, the second connector 20 ′ (female plug) includes a second body 21 , a second shell 22 ′, five power transmission docking members 25 , two signal docking members 26 , five pressing members 27 , a second cable fastener 29 , a second docking seal 281 and a second cable seal 284 .

[0135] Among them, the second shell 22' includes an end shell part 221' and a middle shell part 222'. The structure of the end shell part 221' is the same as the second shell 22 in Example 1. The structure of the middle shell part 222' is similar to the structure of the first shell 12 after removing the snap part, and the inner surface of the middle shell part 222' has the same snap structure as the inner surface of the mounting base 24.

[0136] The structure of the second cable fastener 29 is the same as that of the first cable fastener 14 .

[0137] Similar to the first connector 10 in the first embodiment, one end of the power transmission cable 200 is inserted into the second shell 22', the five power transmission line cores are respectively connected to the five power transmission docking pieces 25, the two signal line cores are respectively connected to the two signal docking pieces 26, and the one end of the power transmission cable 200 is fixed by the end of the second shell 22', the second cable sealing ring 284 and the second cable fastener 29.

[0138] In this embodiment, other structures are the same as those in the first embodiment, and thus will not be described again.

[0139] By using the power connector 100 ′ of this embodiment, the power transmission cable between the power distribution cabinet 300 and the power-consuming equipment can be extended arbitrarily, so that the power can be reliably supplied to a longer distance.

[0140] In addition, the power connector 100 ′ of this embodiment can also be used in combination with the power connector 100 of the first embodiment.

[0141] <Example 3>

[0142] This embodiment provides a power connector and a power transmission system. In this embodiment, the same symbols are given to the same components as those in the first embodiment and the corresponding descriptions are omitted.

[0143] Fig. 22 It is a three-dimensional diagram of the power distribution device in this embodiment.

[0144] like Fig. 22 As shown, compared with the first embodiment, the difference is that the power connector 100" of this embodiment is used to electrically connect the power transmission cable 200 with the mobile distribution box 400, that is, the first power transmission and distribution device is the mobile distribution box, and the second power transmission and distribution device is the power transmission cable.

[0145] The power connector 100 ″ of this embodiment includes a first connector 10 ′ and a second connector 20 ′. The structure of the second connector 20 ′ is the same as that in the second embodiment.

[0146] Fig.23 It is a stereoscopic diagram of the first joint in this embodiment.

[0147] like Fig.23 As shown, the structure of the first connector 10' (male power socket) is basically the same as the structure of the first connector 10 in the first embodiment, except that the first connector 10' does not have the first cable fastener 14, but has an electric box fixing 18, which is a hexagonal nut. The cylindrical portion 1221 of the first shell 12 of the first connector 10' is inserted into the corresponding mounting hole on the mobile distribution box 400, and the electric box fixing 18 is installed on the cylindrical portion 1221 inside the box, so that the first connector 10' can be fixedly installed on the mobile distribution box 400.

[0148] The mobile distribution box 400 is provided with a plurality of power sockets for plugging in a plurality of electrical devices for power consumption. The circuit structure in the mobile distribution box 400 is similar to that in the distribution cabinet 200, and is provided with a ground wire, a neutral wire, three phase wires, two signal wires, a plurality of relays and a 12V signal power supply. Among them, the ground wire, the neutral wire and the three phase wires are connected through the transmission cable 200. The two signal wires are connected to independent signal power supplies. The grounding female pin of each power socket is connected to the ground wire, the neutral female pin is connected to the neutral wire, the three electric energy female pins are respectively connected to the corresponding phase wires through relays, a signal female pin is connected to a signal wire, and another signal female pin is connected to another signal wire through a relay.

[0149] When an electrical device is connected to the power socket, the two signal pins on the connector for plugging the electrical device are short-circuited, so that the two short-circuited signal pins, the signal core in the cable, the two signal female pins on the power socket, the two signal wires in the mobile distribution box 400, the signal power supply and the relay form a connected signal loop.

[0150] In this embodiment, other structures are the same as those in the first embodiment, and thus will not be described again.

[0151] By means of the power connector 100 ″ of this embodiment, the power transmission cable 200 can be reliably connected to the mobile distribution box 400 , so that the power transmission system can be applied to situations where multiple power-consuming devices require remote power distribution and mobile power consumption.

[0152] In addition, the power connector 100 ″ of this embodiment may also be used in combination with the power connector 100 of the first embodiment and / or the power connector 100 ′ of the second embodiment.

[0153] <Example 4>

[0154] This embodiment provides a power transmission system.

[0155] Fig.24 is a three-dimensional diagram of the power transmission system in this embodiment.

[0156] like Fig.24As shown, the power transmission system 1000 includes multiple power distribution devices, including multiple transmission cables 200, a distribution cabinet 300, a mobile distribution box 400, a distribution cabinet power connector 101, a cable power connector 102, a distribution box input power connector 103 and a distribution box output power connector 104 (only the female power socket is shown).

[0157] The power distribution cabinet power connector 101 is also the power connector 100 in the first embodiment.

[0158] The cable power connector 102 is also the power connector 100 ′ of the second embodiment.

[0159] The distribution box input power connector 103 is also the power connector 100" of the third embodiment.

[0160] The female power socket in the distribution box output power connector 104 is installed on the box body of the mobile distribution box 400, and is used to electrically connect the mobile distribution box 400 to the transmission cable, so that the electric energy is further distributed and transmitted to multiple power-consuming devices through the mobile distribution box and the transmission cable.

[0161] The power distribution cabinet 300 is provided with a plurality of power distribution cabinet power connectors 101, through which it is connected to a plurality of power transmission cables 200. Some of the power transmission cables 200 are further connected to other power transmission cables 200 through cable power connectors 102 to extend the power supply distance. Some of the power transmission cables 200 are connected to the mobile power distribution box 400 through the power distribution box input power connector 103, so as to distribute the power to multiple power-consuming devices on site.

[0162] The distribution box output power connector 104 at the mobile distribution box 400 can be directly connected to the power-consuming device, or can be further connected to one or more power transmission cables 200 and then connected to the power-consuming device.

[0163] The mobile distribution box 400 may also be connected to one or more mobile distribution boxes 400 via a power transmission cable 200 .

[0164] According to the power transmission system 1000 of this embodiment, electric energy can be supplied to any distance from the power distribution cabinet 300, and electric energy can be reliably distributed to multiple power-consuming devices with mobile power needs. Moreover, the structure of the power transmission system 1000 can be flexibly adjusted as needed, and has a very wide range of applications.

[0165] The above embodiments are only used to illustrate the specific implementation of the utility model, and the utility model is not limited to the description scope of the above embodiments. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

[0166] For example, in the above embodiment, the power transmission system is used to supply power to electrical equipment on a construction site. In fact, the power transmission system can also be used in other scenarios with remote power supply and mobile power demand.

[0167] In the above embodiment, the signal power supply in the power distribution cabinet and the mobile distribution box are both independent 12V power supplies. In an alternative solution, the signal power supply can also be a 5V~24V power supply, and the signal power supply can also be obtained by transforming the main power supply.

Claims

1. A power connector for electrically connecting two power transmission and distribution devices, characterized in that: include: A first connector provided on one of the power transmission and distribution devices; as well as A second connector provided on another power transmission and distribution device, The first connector includes a first main body having a first engaging portion, and five power transmission pins and two signal pins penetrating the first main body. The second connector includes a second main body having a second engaging portion, five power transmission docking members, five pressing members and at least two signal docking members which are arranged through the second main body. The second engaging portion is used to cooperate with the first engaging portion to engage the outer end of the first body with the outer end of the second body. The power transmission docking piece is tubular, and each of the clamping pieces is respectively arranged on the inner side of each of the power transmission docking pieces. When the power transmission needle is inserted into the corresponding power transmission docking piece, the clamping piece respectively abuts against the outer surface of the power transmission needle and the inner surface of the power transmission docking piece.

2. The power connector according to claim 1, characterized in that: in, The first engaging portion has a square cylindrical protrusion and a mesh protrusion arranged inside the square cylindrical protrusion, and a plurality of receiving grooves are formed between the square cylindrical protrusion and the mesh protrusion. The power transmission needle and the signal needle are respectively arranged in each of the receiving grooves. The second engaging portion has a mesh-shaped engaging groove matching the mesh-shaped protrusion.

3. The power connector according to claim 2, characterized in that: in, The receiving slots are arranged in two rows and three columns. The two signal pins are arranged at the receiving slots in the middle of one column, and their arrangement direction is consistent with the column direction. The power transmission pins are respectively arranged at the other receiving slots. Two of the five power transmission pins serve as a ground pin and a neutral pin respectively.

4. A power distribution device, characterized in that: include: A power distribution cabinet, at least one power transmission cable and at least one power connector, wherein the power connector is the power connector according to any one of claims 1 to 3, The first connector is arranged at one end of the power transmission cable, The second connector is arranged on the cabinet body of the power distribution cabinet.

5. The power distribution device according to claim 4, characterized in that: in, The power distribution cabinet comprises a ground wire, at least two power lines, at least one relay, a signal power supply, and two signal lines respectively connected to the signal power supply. In the second connector, the number of the power transmission docking parts is at least three, and the number of the signal docking parts is two. One of the power transmission docking parts is connected to the ground wire, and the other power transmission docking parts are connected to the corresponding power lines through the relays. One of the signal connectors is connected to one of the signal lines, and another of the signal connectors is connected to another of the signal lines via the relay.

6. A power distribution device, characterized in that: include: A mobile distribution box, at least one power transmission cable and at least one power connector, wherein the power connector is the power connector according to any one of claims 1 to 3, The first connector is arranged on the box body of the mobile distribution box. The second connector is arranged at one end of the power transmission cable.

7. The power distribution device according to claim 6, characterized in that: in, The mobile distribution box has a ground wire, at least two power lines, at least one relay, a signal power supply, and two signal lines respectively connected to the signal power supply. In the first connector, the number of the power transmission pins is at least three, and the number of the signal pins is two. One of the power transmission pins is connected to the ground wire, and the other power transmission pins are connected to the corresponding power lines through the relays. One of the signal pins is connected to one of the signal lines, and another of the signal pins is connected to another of the signal lines via the relay.

8. The power distribution device according to claim 5 or 7, characterized in that: in, The two signal lines are respectively a positive signal line and a negative signal line, which are connected to the positive and negative electrodes of the signal power supply respectively. The signal power supply is an independent 5V to 24V power supply or a 5V to 24V power supply obtained by voltage transformation from the power supply provided by the transmission line.

9. The power distribution device according to any one of claims 4 to 7, characterized in that: in, There are multiple power transmission cables, and several of them are connected in sequence through the power connector.

10. A power transmission system, characterized in that: include: at least one power distribution device for distributing electrical energy to electrical equipment, Wherein, the power distribution device is the power distribution device described in any one of claims 4-9.

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