A high-current power connector

Abstract

This utility model discloses a high-current power connector. The plug includes a front housing assembly, a rear housing assembly, an insulating plate assembly, a cable interface assembly, conductive contacts, and a plug cover. The front and rear housing assemblies are fixedly connected to form a cavity. The insulating plate assembly is located within the cavity and has multiple first slots into which multiple conductive contacts are inserted. The cable interface assembly is located at the rear of the rear housing assembly. The socket includes a socket housing assembly, a rocker arm, a socket cover, an insulating plate assembly, and conductive pins. The insulating plate assembly is fixedly installed within the socket housing assembly and has multiple second slots into which conductive pins are installed. The rocker arm and socket cover are connected to the upper part of the socket housing assembly via a rotating shaft mechanism, achieving linkage. This utility model has advantages such as high connection reliability and convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of marine power, and in particular to a high-current power connector. Background Technology

[0002] With the increasing demands for green port construction and energy conservation and emission reduction in ships, using shore power systems to replace shipboard generators during berthing has become an important measure to reduce air pollutant emissions and noise pollution. High-current power connectors, as key interface devices in shore power systems that enable power transmission between ships and shore base stations, directly affect the reliability of power supply, ease of operation, and overall system security.

[0003] Currently, high-current power connectors are commonly used as the electrical connection interface between ships and shore power systems in ship-to-shore power connection applications. These connectors must possess high current-carrying capacity, excellent environmental sealing performance, reliable mechanical strength, and corrosion resistance to adapt to the complex and variable marine environment of ports and the demands of frequent plugging and unplugging operations. However, existing high-current power connectors largely rely on imported products, resulting in high procurement and maintenance costs, as well as numerous inconveniences in terms of localized service response and spare parts supply.

[0004] In addition, existing power connectors still have several shortcomings in actual use: for example, the plug cover is easily lost after disassembly, affecting sealing performance and safety; the socket rocker arm structure is mostly made of copper, which has good conductivity, but relatively poor mechanical strength and corrosion resistance, and is also expensive; at the same time, in single-person operation scenarios, the socket cover cannot be effectively fixed after opening, which requires additional operation for plug insertion and reduces work efficiency.

[0005] The statements herein provide only background information relating to this invention and do not necessarily constitute prior art. Utility Model Content

[0006] The purpose of this invention is to develop a high-current power connector suitable for ship shore power systems, while ensuring complete consistency with existing imported products in terms of structural dimensions, electrical performance, and interchangeability. This connector must not only meet the technical requirements of high current transmission, high protection level, and long-term durability, but also undergo optimization and improvement in structural design, material selection, and human-machine operation to enhance product reliability, reduce manufacturing costs, and achieve complete replacement of imported products.

[0007] To achieve the above objectives, this utility model provides a high-current power connector, wherein the plug is connected to a first cable and the socket is connected to a second cable, and the electrical connection between the two cables is achieved by the plug and socket being inserted together. The plug includes a front housing assembly, a rear housing assembly, an insulating plate assembly, a cable interface assembly, multiple conductive contacts, and a plug cover. The front housing assembly and the rear housing assembly of the plug are fixedly connected to form a protective shell for the plug, and a cavity is formed inside the protective shell. A plug insulating plate assembly is provided in the cavity, and a plurality of first slots are provided on the plug insulating plate assembly. The plurality of conductive contacts are inserted into the first slots one by one along the depth direction of the cavity. The plug cover is located at one end of the front housing assembly of the plug away from the rear housing assembly of the plug, in order to protect the multiple conductive contacts within the cavity; The cable interface assembly is located at the tail of the plug rear housing assembly to achieve mechanical fixation and environmental sealing of the first cable; the plug cover and the cable interface assembly are connected by a bendable connector to prevent the plug cover from being lost. The socket includes a socket housing assembly, a rocker arm, a socket cover, a socket insulation plate assembly, and multiple conductive pins; The socket insulation board assembly is fixedly installed inside the socket housing assembly. The socket insulation board assembly has multiple second slots, each of which is equipped with a conductive pin. The rocker arm is connected to the upper part of the socket housing assembly via a rotating shaft mechanism, so as to swing up and down around the rotating shaft mechanism. The socket cover is fixedly connected to the rocker arm and achieves linkage.

[0008] Optionally, the conductive contact includes: a phase socket assembly, a ground socket assembly, an auxiliary socket assembly, and a first cable crimping cylinder connected to the tail of each socket assembly; The phase socket assembly, the grounding socket assembly, and the auxiliary socket assembly are each inserted into the first slot of the plug insulation plate assembly; Each phase conductor, grounding conductor, and auxiliary signal line conductor at the end of the first cable are respectively installed in each first cable crimping cylinder to achieve electrical connection between the first cable and the plug.

[0009] Optionally, the tail of the phase socket assembly, the grounding socket assembly, and the auxiliary socket assembly are all provided with socket insertion holes. A two-stage threaded connection structure is provided on the inner wall of the socket insertion hole, that is, a coarse thread is provided on the inner wall of the socket insertion hole near the first cable crimping cylinder, and a fine thread is provided on the side of the coarse thread away from the first cable crimping cylinder.

[0010] Optionally, the first cable crimping cylinder includes a first cable receiving cavity and a first insertion part; the phase conductors, grounding conductors and auxiliary signal line conductors of the first cable are inserted into the first cable receiving cavity to form an electrical connection. One end of the first insertion part is connected to the first cable receiving cavity by a first conical structure, and the other end is inserted into the insertion hole at the tail of each insertion assembly. The first insertion part is a slender cylinder, and the outer diameter of the first insertion part matches the inner diameter of the insertion hole. The cylindrical surface of the first insertion part is provided with coarse threads and fine threads that match the inner wall of the insertion hole.

[0011] Optionally, the inner cavity of the cable interface assembly is a tapered cavity, and the bottom of the cable interface assembly includes an axial locking mechanism; The axial locking mechanism includes a double-engaging mechanism and a second bolt that controls the opening and closing of the double-engaging mechanism to clamp the first cable; The conical cavity is also provided with an interface gasket and an interface sealing ring, which are fitted onto the outer sheath of the first cable after the first cable is connected to the cable interface assembly, so as to achieve radial sealing between the inner wall of the cable interface assembly and the first cable.

[0012] Optionally, the conductive pin includes: a phase pin for carrying a large current in the main circuit; a grounding pin for connecting a protective grounding wire; and an auxiliary pin for transmitting control signals in an auxiliary circuit. The tail of each phase pin, grounding pin, and auxiliary pin is connected to a second cable crimping cylinder, which is used to crimp the corresponding phase pin, grounding pin, and auxiliary pin. The phase conductors, grounding conductors, and auxiliary signal line conductors at the ends of the second cable are respectively installed in the respective second cable crimping cylinders to achieve electrical connection between the second cable and the socket.

[0013] Optionally, the tail of the phase pin, grounding pin, and auxiliary pin are all provided with a pin insertion hole, and a two-stage threaded connection structure is provided on the inner wall of the pin insertion hole, that is, a coarse thread is provided on the inner wall of the pin insertion hole near the second cable crimping cylinder, and a fine thread is provided on the side of the coarse thread away from the second cable crimping cylinder.

[0014] Optionally, the second cable crimping cylinder includes a second cable receiving cavity and a second insertion portion; The phase conductors, grounding conductor, and auxiliary signal line conductor of the second cable are inserted into the second cable accommodating cavity to form an electrical connection. One end of the second insertion part is connected to the second cable accommodating cavity by a second conical structure, and the other end is inserted into the pin insertion hole at the tail of each pin. The second insertion part is a slender cylinder, and the outer diameter of the second insertion part matches the inner diameter of the pin insertion hole. The cylindrical surface of the second insertion part is provided with coarse threads and fine threads that match the inner wall of the pin insertion hole.

[0015] Optionally, the rotating shaft mechanism is provided with an annular fixing groove, and the socket cover is provided with indexing pins protruding on both sides near the annular fixing groove; when the socket cover is opened, the socket cover is fixed in the annular fixing groove by the indexing pins.

[0016] Optionally, a connecting rod or cam structure is provided between the socket cover and the rocker arm, and the socket cover and the rocker arm are linked through the connecting rod or cam structure; when the rocker arm is lifted or pushed down, the socket cover is driven to flip open or close.

[0017] In summary, compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a high-current power connector in which the plug cover is fixed to the plug body using a steel wire rope structure, which is low in cost, reliable in strength, and can prevent the plug cover from being lost.

[0018] 2. The high-current power connector provided by this utility model has a rocker arm structure made of cast stainless steel, which has good strength and corrosion resistance, and is less expensive than the original copper rocker arm.

[0019] 3. The high-current power connector provided by this utility model has an indexing pin assembly added to the rocker arm structure of the socket, which can fix the socket cover when the socket is open, keep the socket in the open position, and facilitate the insertion of the plug when a single person operates it. 4. The high-current power connector provided by this utility model improves the connection method between various plug components and the first cable crimping cylinder, and between various pins and the second cable crimping cylinder. It adopts a two-stage threaded connection structure that combines coarse and fine threads between the two, which improves the connection performance and facilitates disassembly during maintenance. Attached Figure Description

[0020] Figure 1 This is an exploded view of the plug of this utility model; Figure 2 This is an exploded view of the socket of this utility model; Figure 3 This is a schematic diagram showing the connection between the socket assembly and the first cable crimping cylinder of this utility model; Figure 4 This is a schematic diagram showing the connection between the pin and the second cable crimping cylinder of this utility model; Figure 5This is a schematic diagram of the plug structure of this utility model; Figure 6 This is a schematic diagram of the socket of this utility model when it is turned on. Detailed Implementation

[0021] The following will be combined with the appendix Figures 1-6 The present invention will be further described in detail through preferred embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only for the purpose of conveniently and clearly illustrating the embodiments of the present invention. Please refer to the accompanying drawings to make the objectives, features, and advantages of the present invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by the present invention, should still fall within the scope of the technical content disclosed in the present invention.

[0022] This utility model provides a high-current power connector, including a plug and a socket. The plug is connected to a first cable, and the socket is connected to a second cable. The electrical connection between the two cables is achieved by interlocking the plug and the socket.

[0023] like Figure 1 As shown, the plug includes a front housing assembly 110, a rear housing assembly 120, an insulation plate assembly 130, a cable interface assembly 121, multiple conductive contacts, and a plug cover 140.

[0024] The plug front housing assembly 110 and the plug rear housing assembly 120 are fixedly connected by a first bolt 1111 to form a protective shell for the plug, and a cavity is formed inside the protective shell. A plug insulation plate assembly 130 is provided in the cavity, and a plurality of first slots are provided on the plug insulation plate assembly 130. The plurality of conductive contacts are inserted into the first slots one by one along the depth direction of the cavity.

[0025] The plurality of conductive contacts include: a phase socket assembly 133, a ground socket assembly 134, an auxiliary socket assembly 131, and a first cable crimping cylinder 132 connected to the tail of each socket assembly; in a preferred embodiment, there are three first slots, and the phase socket assembly 133, the ground socket assembly 134, and the auxiliary socket assembly 131 are respectively inserted into the three first slots of the plug insulation plate assembly 130.

[0026] Furthermore, such as Figure 3As shown, the tail of the phase plug assembly 133, the ground plug assembly 134, and the auxiliary plug assembly 131 are all provided with plug insertion holes. A two-stage threaded connection structure is provided on the inner wall of the plug insertion hole, that is, a coarse thread is provided on the inner wall of the plug insertion hole near the first cable crimping cylinder 132, and a fine thread is provided on the side of the coarse thread away from the first cable crimping cylinder 132.

[0027] Continue reading Figure 3 The first cable crimping cylinder 132 includes a first cable receiving cavity 1321 and a first insertion part 1322. One end of the first insertion part 1322 is connected to the first cable receiving cavity 1321 by a first conical structure, and the other end is inserted into the insertion hole at the tail of each insert assembly (133, 134 and 131). The first insertion part 1322 is a slender cylinder, and the outer diameter of the first insertion part 1322 matches the inner diameter of the insertion hole. The cylindrical surface of the first insertion part 1322 is provided with coarse threads and fine threads that match the inner wall of the insertion hole. After the first cable crimping cylinder 132 is inserted into each insert assembly, the coarse threads achieve rapid pre-tightening, and the fine threads achieve tight fastening. The first conical surface 1323 of the first conical structure surface between the first insertion part 1322 and the first cable receiving cavity 1321 achieves crimping with each insert assembly.

[0028] The outer sheath of the first cable is removed from its end, and the exposed portion of this end includes three types of conductors: a phase conductor, a ground conductor, and an auxiliary signal conductor. The phase conductor, ground conductor, and auxiliary signal conductor are respectively connected into the corresponding first cable crimping cylinder 132 to achieve electrical connection. Specifically, the phase conductor at the end of the first cable is inserted into the first cable receiving cavity 1321 of the first cable crimping cylinder 132 connected to the tail of the phase insertion assembly 133. Then, due to the physical connection between the corresponding first insertion part 1322 and the phase insertion assembly 133, an electrical signal is transmitted to the phase insertion assembly 133. Similarly, the ground conductor at the end of the first cable is inserted into the first cable receiving cavity 1321 of the first cable crimping cylinder 132 connected to the tail of the grounding insertion assembly 134. Within 21, due to the physical connection between the corresponding first insertion part 1322 and the grounding socket assembly 134, an electrical signal is transmitted to the grounding socket assembly 134; and the auxiliary signal line conductor at the end of the first cable is inserted into the first cable receiving cavity 1321 of the first cable crimping cylinder 132 connected to the tail of the auxiliary socket assembly 131, and then due to the physical connection between the corresponding first insertion part 1322 and the auxiliary socket assembly 131, an electrical signal is transmitted to the auxiliary socket assembly 131; thus, the installation of the exposed phase conductor, ground conductor and auxiliary signal line conductor at the end of the first cable is realized, thereby realizing the installation of the end of the first cable in the plug, and thus realizing a low-resistance, high-reliability electrical connection between the first cable and the plug.

[0029] The rear of the plug housing assembly 120 is provided with a cable interface assembly 121, the core function of which is to achieve mechanical fixation and environmental sealing of the first cable. The inner cavity of the cable interface assembly 121 is a conical cavity; the bottom of the cable interface assembly 121 includes an axial locking mechanism; the axial locking mechanism includes a double-engaging mechanism and a second bolt 1112 for controlling the opening and closing of the double-engaging mechanism. During assembly, the first cable passes through the middle of the double-engaging mechanism and enters the conical cavity. Then, a conical or wedge-shaped interface washer 122 and an interface sealing ring 123 are fitted around the first cable, and the interface washer 122 and the interface sealing ring 123 are both housed in the conical cavity of the cable interface assembly 121. Then, the end of the first cable that extends into the conical cavity is further stretched into the plug housing assembly 120 and connected to each first cable crimping cylinder 132. The axial locking mechanism is equipped with a second bolt 1112. When the second bolt 1112 is tightened, it acts on the axial locking mechanism and generates an axial locking force that pushes the interface washer 122 to move slightly along the axial direction of the conical cavity. According to the principle of inclined planes, as the cavity opening of the conical cavity contracts towards the plug rear housing assembly 120, this axial movement is converted into a radial clamping force, forcing the interface washer 122 to uniformly close and tightly hug the outer sheath of the first cable, thereby effectively withstanding the tensile force and torque from the outside and ensuring the mechanical reliability of the connection. At the same time, the interface sealing ring 123, which is provided inside the cable interface assembly 121, is compressed and undergoes elastic deformation during the radial clamping of the first cable, tightly filling all the gaps between the outer sheath of the first cable and the inner wall of the interface assembly, forming a reliable radial sealing barrier, effectively preventing moisture, dust and other media from entering the connector.

[0030] The plug front housing assembly 110 has a plug cover 140 fitted onto one end away from the plug rear housing assembly 120; for example Figure 5 As shown, to prevent the plug cover 140 from being lost, a flexible connector 150 is provided between the plug cover 140 and the cable interface assembly 121. Specifically, the flexible connector 150 is a bend-resistant steel wire rope. This steel wire rope has a certain amount of flexibility to adapt to different opening angles, which not only ensures the flexibility of use, but also avoids the increased cost of replacing parts due to the loss of the plug cover 140.

[0031] Preferably, the first bolt 1111 is an M8 bolt; the second bolt 1112 is an M12 bolt.

[0032] like Figure 2 As shown, the socket includes a socket housing assembly 210, a rocker arm 211, a socket cover 212, a socket insulation plate assembly 230, and a plurality of conductive pins.

[0033] The socket housing assembly 210 serves as the mounting base, and a second cable inlet is provided at its rear. The second cable is sealed and fixed by the socket retaining ring 220 and the third bolt 1113. By tightening the third bolt 1113 to press the sealing ring between the socket retaining ring 220 and the rear of the socket housing assembly 210, an environmental seal is achieved at the second cable inlet at the rear of the socket, preventing media intrusion.

[0034] The socket insulation board assembly 230 is fixedly installed inside the socket housing assembly 210, serving as the core insulation and support structure. The socket insulation board assembly 230 has multiple second slots, each containing a conductive pin. These conductive pins include: a phase pin 233 for carrying the main circuit's high current, a grounding pin 234 for connecting the protective grounding wire, and an auxiliary pin 231 for transmitting control signals. The tails of the phase pin 233, grounding pin 234, and auxiliary pin 231 are integrally or separately connected to a second cable crimping cylinder 232, used to crimp the corresponding phase pin 233, grounding pin 234, and auxiliary pin 231, thereby achieving a reliable electrical connection.

[0035] Preferably, the socket insulation plate assembly 230 is provided with three second slots for inserting the phase pin 233, the grounding pin 234 and the auxiliary pin 231 respectively.

[0036] Furthermore, such as Figure 4 As shown, the tail of the phase pin 233, grounding pin 234 and auxiliary pin 231 are all provided with pin insertion holes. A two-stage threaded connection structure is provided on the inner wall of the pin insertion hole, that is, a coarse thread is provided on the inner wall of the pin insertion hole near the second cable crimping cylinder 232, and a fine thread is provided on the side of the coarse thread away from the second cable crimping cylinder 232.

[0037] Continue reading Figure 4 The second cable crimping cylinder 232 includes a second cable receiving cavity 2321 and a second insertion part 2322. One end of the second insertion part 2322 is connected to the second cable receiving cavity 2321 by a second conical structure, and the other end is inserted into the pin insertion hole at the tail of each pin (233, 234 and 231). The second insertion part 2322 is a slender cylinder, and the outer diameter of the second insertion part 2322 matches the inner diameter of the pin insertion hole. The cylindrical surface of the second insertion part 2322 is provided with coarse threads and fine threads that match the inner wall of the pin insertion hole. After each pin is inserted into the second cable crimping cylinder 232, the coarse threads achieve rapid pre-tightening, and the fine threads achieve tight fastening. The second conical surface 2323 of the second conical structure surface between the second insertion part 2322 and the second cable receiving cavity 2321 achieves crimping with each pin.

[0038] The outer sheath of the second cable is removed from its end, and the exposed portion of this end also includes three types of conductors: a phase conductor, a ground conductor, and an auxiliary signal conductor. The phase conductor, ground conductor, and auxiliary signal conductor are respectively connected into the corresponding second cable crimping cylinder 232 to achieve electrical connection. Specifically, the phase conductor at the end of the second cable is inserted into the second cable receiving cavity 2321 of the second cable crimping cylinder 232, which is connected to the tail of the phase pin 233. Then, due to the physical connection between the corresponding second insertion part 2322 and the phase pin 233, the electrical signal is transmitted to the phase pin 233. Similarly, the ground conductor at the end of the second cable is inserted into the second cable receiving cavity 2321 of the second cable crimping cylinder 232, which is connected to the tail of the ground pin 234. Within 321, and then due to the physical connection between the corresponding second insertion part 2322 and the grounding pin 234, an electrical signal is transmitted to the grounding pin 234; and the auxiliary signal line conductor at the end of the second cable is inserted into the second cable receiving cavity 2321 within the second cable crimping cylinder 232 connected to the tail of the auxiliary pin 231, and then due to the physical connection between the corresponding second insertion part 2322 and the auxiliary pin 231, an electrical signal is transmitted to the auxiliary pin 231; thus, the installation of the exposed phase conductor, ground conductor, and auxiliary signal line conductor at the end of the second cable is realized, thereby realizing the installation of the end of the second cable in the socket, and thus achieving a low-resistance, high-reliability electrical connection between the second cable and the socket.

[0039] like Figure 2 As shown, the rocker arm 211 is connected to the upper part of the socket housing assembly 210 via rotating shaft mechanisms 213 on both sides of the rocker arm 211, and can swing up and down around the rotating shaft mechanism 213. The socket cover 212 is fixedly connected to the rocker arm 211 and achieves linkage; when the rocker arm 211 is lifted upward, it drives the socket cover 212 to flip upward and open through the connecting rod or cam structure set between the rocker arm 211 and the socket cover 212, exposing all three conductive pins. The rotating shaft mechanism 213 is symmetrically provided with annular fixing grooves 2131, and the socket cover 212 is provided with indexing pins 2121 protruding on both sides near the annular fixing grooves 2131. When the socket cover 212 is opened to the maximum angle or a certain intermediate position, the socket cover 212 can be fixed in the annular fixing grooves 2131 by the indexing pins 2121, so that the socket cover 212 maintains a stable open state without manual support.

[0040] Preferably, the third bolt 1113 is an M8 bolt.

[0041] like Figure 6As shown, before inserting the plug into the socket, the rocker arm 211 must be lifted upwards, at which point the socket cover 212 opens. When the socket cover 212 is opened to a certain angle, the indexing pins 2121 at both ends of the socket cover 212 move into the annular fixing grooves 2131 on the rotating shaft mechanism 213. At this time, the socket cover 212 is reliably fixed in the open state without manual support. The operator can then use both hands to insert the plug with the plug cover 140 removed into the socket, thus achieving the corresponding electrical connection between each socket assembly and each pin. Then, the indexing pins 2121 are released, and the rocker arm 211 is pressed down to complete the final insertion and locking. The entire process can be completed independently by one person, greatly improving work efficiency.

[0042] Therefore, the high-current power connector provided by this utility model is not only completely interchangeable with the original imported product in terms of structure and performance, meeting the basic requirements of domestic substitution, but also significantly improves the convenience and reliability of the product in installation, maintenance and daily operation through the humanized design of many detailed structures.

[0043] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] In the description of this utility model, it should be understood that the terms "center," "height," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0045] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A high-current power connector, wherein a plug is connected to a first cable and a socket is connected to a second cable, and an electrical connection between the two cables is achieved by the mating of the plug and the socket, characterized in that, The plug includes a front housing assembly, a rear housing assembly, an insulation plate assembly, a cable interface assembly, multiple conductive contacts, and a plug cover. The front housing assembly and the rear housing assembly of the plug are fixedly connected to each other, together forming the protective shell of the plug, and a cavity is formed inside the protective shell. The cavity is provided with a plug insulation plate assembly, and the plug insulation plate assembly is provided with a plurality of first slots. The plurality of conductive contacts are inserted into the first slots one by one along the depth direction of the cavity. The plug cover is located at one end of the front housing assembly of the plug away from the rear housing assembly of the plug, in order to protect the multiple conductive contacts within the cavity; The cable interface assembly is located at the tail of the plug rear housing assembly to achieve mechanical fixation and environmental sealing of the first cable; the plug cover and the cable interface assembly are connected by a bendable connector to prevent the plug cover from being lost. The socket includes a socket housing assembly, a rocker arm, a socket cover, a socket insulation plate assembly, and multiple conductive pins; The socket insulation board assembly is fixedly installed inside the socket housing assembly. The socket insulation board assembly has multiple second slots, each of which is equipped with a conductive pin. The rocker arm is connected to the upper part of the socket housing assembly via a rotating shaft mechanism, so as to swing up and down around the rotating shaft mechanism. The socket cover is fixedly connected to the rocker arm and achieves linkage.

2. The power connector of claim 1, wherein, The conductive contact includes: a phase socket assembly, a ground socket assembly, an auxiliary socket assembly, and a first cable crimping cylinder connected to the tail of each socket assembly; The phase socket assembly, the grounding socket assembly, and the auxiliary socket assembly are each inserted into the first slot of the plug insulation plate assembly; Each phase conductor, grounding conductor, and auxiliary signal line conductor at the end of the first cable are respectively installed in each first cable crimping cylinder to achieve electrical connection between the first cable and the plug.

3. The power connector of claim 2, wherein, The tail of the phase socket assembly, the grounding socket assembly, and the auxiliary socket assembly are all provided with socket insertion holes. A two-stage threaded connection structure is provided on the inner wall of the socket insertion hole, that is, a coarse thread is provided on the inner wall of the socket insertion hole near the first cable crimping cylinder, and a fine thread is provided on the side of the coarse thread away from the first cable crimping cylinder.

4. The power connector of claim 3, wherein, The first cable crimping cylinder includes a first cable receiving cavity and a first insertion part; each phase conductor, grounding conductor and auxiliary signal line conductor of the first cable are correspondingly inserted into the first cable receiving cavity to form an electrical connection; One end of the first insertion part is connected to the first cable receiving cavity by a first conical structure, and the other end is inserted into the insertion hole at the tail of each insertion assembly. The first insertion part is a slender cylinder, and the outer diameter of the first insertion part matches the inner diameter of the insertion hole. The cylindrical surface of the first insertion part is provided with coarse threads and fine threads that match the inner wall of the insertion hole.

5. The power connector of claim 1, wherein, The inner cavity of the cable interface assembly is a conical cavity, and the bottom of the cable interface assembly includes an axial locking mechanism. The axial locking mechanism includes a double-engaging mechanism and a second bolt that controls the opening and closing of the double-engaging mechanism to clamp the first cable; The conical cavity is also provided with an interface gasket and an interface sealing ring, which are fitted onto the outer sheath of the first cable after the first cable is connected to the cable interface assembly, so as to achieve radial sealing between the inner wall of the cable interface assembly and the first cable.

6. The power connector of claim 1, wherein, The conductive pin includes: a phase pin for carrying the large current of the main circuit; a grounding pin for connecting the protective grounding wire; and an auxiliary pin for transmitting control signals in the auxiliary circuit. The tail of each phase pin, grounding pin, and auxiliary pin is connected to a second cable crimping cylinder, which is used to crimp the corresponding phase pin, grounding pin, and auxiliary pin. The phase conductors, grounding conductors, and auxiliary signal line conductors at the ends of the second cable are respectively installed in the respective second cable crimping cylinders to achieve electrical connection between the second cable and the socket.

7. The power connector of claim 6, wherein, The tail of each of the phase pin, grounding pin, and auxiliary pin is provided with a pin insertion hole. A two-stage threaded connection structure is provided on the inner wall of the pin insertion hole, that is, a coarse thread is provided on the inner wall of the pin insertion hole near the second cable crimping cylinder, and a fine thread is provided on the side of the coarse thread away from the second cable crimping cylinder.

8. The power connector of claim 7, wherein, The second cable crimping cylinder includes a second cable receiving cavity and a second insertion portion; The phase conductors, grounding conductor, and auxiliary signal line conductor of the second cable are inserted into the second cable accommodating cavity to form an electrical connection. One end of the second insertion part is connected to the second cable accommodating cavity by a second conical structure, and the other end is inserted into the pin insertion hole at the tail of each pin. The second insertion part is a slender cylinder, and the outer diameter of the second insertion part matches the inner diameter of the pin insertion hole. The cylindrical surface of the second insertion part is provided with coarse threads and fine threads that match the inner wall of the pin insertion hole.

9. The power connector of claim 1, wherein, The rotating shaft mechanism is provided with an annular fixing groove, and the socket cover is provided with indexing pins protruding on both sides near the annular fixing groove; when the socket cover is opened, the socket cover is fixed in the annular fixing groove by the indexing pins.

10. The power connector of claim 9, wherein, A connecting rod or cam structure is provided between the socket cover and the rocker arm, and the socket cover and the rocker arm are linked through the connecting rod or cam structure; when the rocker arm is lifted or pushed down, the socket cover is driven to flip open or close.

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