Socket and plug system for 400V direct current

Abstract

The utility model relates to a socket and plug system for 400V direct current, and belongs to the technical field of socket and plug systems. The plug comprises a plug body and a socket body which are mutually plugged, the plug body comprises a first base part, a first peripheral part, a bolt part and a partition part, one end of the first base part is connected with a power line, the first peripheral part is arranged at the other end of the first base part and defines a first cavity, and the bolt part is connected with the first base part and arranged in the first cavity; the end part of the partition part is connected with the first peripheral part; the socket body comprises a second base part, a second peripheral part, jack parts and partition grooves, one side of the second base part is connected with the power supply, the second peripheral part is arranged on the other side of the second base part and defines a second cavity, the jack parts are arranged in the second cavity, the partition grooves are formed between different jack parts, and the partition parts can be inserted into the partition grooves. According to the invention, the socket and plug system has the effect of safe breaking under the condition that the current is fully loaded under the 400V direct current.

Description

Technical Field

[0001] The present application relates to the technical field of socket and plug systems, and in particular to a socket and plug system for 400V direct current. Background Art

[0002] A plug-and-socket system consists of a plug and a socket. The plug is used to connect an electrical appliance or other device to a socket, thereby achieving an electrical connection between the appliance and the power source. According to the GB17465.1-2009 and GB17465.2-2009 "Household and Similar Appliance Couplers" standards, plugs are generally compatible with voltages of 250V, 125V, and 36V, and currents of 16A, 13A, 10A, 5A, and 2.5A, depending on the current.

[0003] In the socket and plug system in the above standard, C19 and C20 are the matching power interfaces in the socket and plug system, which are generally suitable for 250V AC and 16A power usage scenarios. However, in the 400V DC and 16A scenarios, when the plug is unplugged under full load, an arc is easily generated between the plug pin and the socket at the socket. The positive and negative poles are easily connected to cause a short circuit, affecting the safety of use. The safety of use is poor and the service life is short, so C19 and C20 cannot be used directly.

[0004] In the above-mentioned related technologies, there is a defect that the socket and plug system cannot be adapted for use in both 250V AC and 400V DC scenarios at the same time. Utility Model Content

[0005] In order to improve the problem that the socket plug system cannot be adapted for use in both 250V AC and 400V DC scenarios, the present application provides a socket plug system for 400V DC.

[0006] The socket and plug system for 400V DC provided in this application adopts the following technical solution:

[0007] A socket plug system for 400V direct current includes: a plug body, the plug body including a first base, a first peripheral portion, a plug portion and a partition portion, one end of the first base portion is connected to a power line, the first peripheral portion is arranged at the other end of the first base portion, the first peripheral portion is arranged to form a first cavity, one end of the plug portion is connected to the first base portion, the plug portion is arranged in the first cavity, a plurality of the plug portions are provided, the end of the partition portion is connected to the inner side wall of the first peripheral portion, the first cavity is divided into a plurality of partition chambers, the plug portions correspond to the partition chambers one by one, and along the length extension direction of the plug portion, the The length of the partition part is greater than or equal to the length of the plug part; the socket body, the socket body includes a second base part, a second peripheral part, a socket part and a partition groove, one side of the second base part is connected to the power supply, the second peripheral part is arranged on the other side of the second base part, the second peripheral part is arranged to form a second cavity, the first peripheral part can be inserted into the second cavity, the socket part is arranged in the second cavity, there are several socket parts, the socket parts correspond to the plug parts one by one, so that the plug part can be inserted into the socket parts, and partition grooves are provided between different socket parts to make the socket parts relatively independent, and the partition part can be inserted into the partition grooves.

[0008] By adopting the above technical solution, the first base portion of the plug body is used to realize the electrical connection between the plug part and the power cord, and the first peripheral portion is arranged around the outer periphery of the plug part, so that the plug part is arranged in the first cavity, and a partition portion is arranged in the first cavity. The partition portion divides the first cavity into multiple partition chambers, and each partition chamber is provided with a plug part, so that different plug parts are separated, thereby increasing the electrical clearance and creepage distance, and reducing the risk of arc short circuit when the plug parts of different polarities are electrically connected; the second base portion of the socket body is used to electrically connect the jack part to the power supply, when the plug body and the socket body are plugged in, the plug part is inserted into the jack part, and the first peripheral portion is inserted into the second cavity; since a partition groove is provided in the second cavity, the partition part can be inserted into the partition groove, so that the plug part can be separated by the partition part during and after the plugging process, reducing the generation of arc between the jack parts of different polarities, so that the system can be adapted to both 250V AC scenarios and 400V DC scenarios, improving applicability, convenience of use and safety.

[0009] Optionally, there are three of each of the latch portion and the socket portion, the partition portion and the partition groove are both T-shaped, and the three ends of the partition portion are respectively connected to the three inner side walls of the first peripheral portion, so that the three latch portions are separated from each other.

[0010] By adopting the above technical solution, when the plug part is a three-core plug structure and the socket part is a three-hole socket structure, in order to achieve relative separation between the three plug parts, the partition part and the partition groove are both set to T-shaped, so that a reliable separation effect can be achieved between two adjacent plug parts; the three ends of the T-shaped partition part are respectively connected to the three side walls of the first peripheral part, and the separation of different plug parts can be achieved in the first cavity by physical connection, avoiding the problem of increased risk of arc generation between the socket parts and plug parts of different polarities due to a gap between the partition part and the side walls of the first peripheral part.

[0011] Optionally, the partition portion is provided with a plurality of first inclined surfaces at the end away from the first base portion, and the socket portion is provided with a plurality of second inclined surfaces at the end away from the second base portion, and the first inclined surfaces and the second inclined surfaces are used to guide the pin portion when it is inserted into the socket portion.

[0012] By adopting the above technical solution, the first inclined surface and the second inclined surface serve as guide structures, which can make it easier for the pin portion to be inserted into the socket portion, thereby reducing the difficulty of plugging.

[0013] Optionally, the partition portion is made of insulating material.

[0014] By adopting the above technical solution, the partition part can reliably separate the latch part, thereby achieving the purpose of increasing or decreasing the electrical gap and creepage distance.

[0015] Optionally, a socket is provided in the socket portion, the socket is a C-shaped structure, and the socket is used to be electrically connected to the pin portion.

[0016] By adopting the above technical solution, compared with the bell-mouth socket structure in the prior art, the C-shaped socket occupies less space, which is helpful for setting the partition groove to allow the partition part to be inserted.

[0017] Optionally, a self-locking component is provided in the socket body, and the self-locking component includes a pressing part, a limiting part and an elastic part, the pressing part is provided on the second base part, the elastic part is provided in the accommodating cavity in the pressing part, the two ends of the elastic part are respectively connected to the pressing part and the second base part, the elastic part enables the pressing part to move vertically, the first end of the limiting part is movably connected to the pressing part, the second end of the limiting part cooperates with the second base part and is lower than the first end of the limiting part, the limiting part is tilted so that the vertical movement of the pressing part can drive the inclination angle of the limiting part to change, the limiting part is provided with a through hole, and the through hole is correspondingly arranged to the socket part, and the pin part can be passed through the through hole in the socket part by changing the inclination angle of the limiting part.

[0018] By adopting the above technical solution, when the pin portion is plugged into the socket portion, the pin portion passes through the through hole in the limiting portion to continue to extend into the socket portion. In order to continue to extend, the pin portion can press the limiting portion downward during the insertion process, so that the limiting portion drives the pressing portion to compress the elastic portion, thereby adjusting the height of the first end of the limiting portion to drop. Since the first end of the limiting portion and the pressing portion are movably connected, the inclination angle of the limiting portion can be adjusted while the height of the second end of the limiting portion remains unchanged, so that the horizontal cross-sectional area of ​​the through hole is increased, so that the pin portion can pass through the through hole to achieve plugging with the socket portion; during the process of pulling out the pin portion, due to the inclination of the limiting portion, the peripheral wall of the through hole is clamped with the pin portion, thereby limiting the pulling out of the pin portion and achieving self-locking.

[0019] Optionally, the pressing part is U-shaped, and the first end of the pressing part is arranged on the outside away from the second outer portion. The first end of the pressing part is used to drive the second end of the pressing part to move vertically. The second end of the pressing part is provided with a limiting groove, and the first end of the limiting part is movably arranged in the limiting groove, so that the vertical movement of the pressing part drives the inclination angle of the limiting part to change.

[0020] By adopting the above technical solution, the U-shaped pressing part can make the first end of the pressing part for manual pressing away from the second end of the pressing part for cooperating with the limiting part, thereby improving the operational safety during manual pressing; when the latch part needs to be pulled out of the socket part, the pressing part is pressed downward to make the pressing part move vertically downward, and the limiting groove can drive the first end of the limiting part to move downward, and the second end of the limiting part cooperates with the second base part, so that the second end of the limiting part can be limited by the second base part, so that the second end of the limiting part does not move downward, thereby reducing the inclination angle between the limiting part and the horizontal plane, and then the clamping connection between the through hole of the limiting part and the latch part can be alleviated or released, so that the latch part can be pulled out of the socket part, effectively preventing the latch part and the socket part from accidentally falling off, so that the latch part can only be pulled out under the premise of pressing down the pressing part.

[0021] Optionally, the longitudinal cross-sectional area of ​​the limiting groove is larger than the longitudinal cross-sectional area of ​​the first end of the limiting portion, so that the first end of the limiting portion can move in the limiting groove.

[0022] By adopting the above technical solution, the first end of the limiting portion can move in the limiting groove, so that when the limiting portion is subjected to downward pressure from the latch portion, the first end of the limiting portion can be rotated relative to the pressing portion to drive the pressing portion to move downward, so that the latch portion can be inserted into the socket portion. Alternatively, when the pressing portion is subjected to downward pressure, the first end of the limiting portion can be driven downward, and the relative rotation between the first end of the limiting portion and the pressing portion changes the inclination angle of the limiting portion, so that the latch portion can be pulled out of the socket portion.

[0023] Optionally, the second base portion is provided with a limiting slot, the second end of the limiting portion is movably disposed in the limiting slot, and the limiting portion overlaps the bottom of the limiting slot.

[0024] By adopting the above technical solution, the limit slot can limit the lowest position and horizontal position of the second end of the limit part, avoiding downward movement when the first end of the limit part moves downward, affecting the adjustment of the inclination angle of the limit part, and at the same time enabling the limit part to be erected between the pressing part and the limit slot, reducing the risk of the limit part detaching.

[0025] Optionally, a relief hole is provided on the socket portion, and the top of the second end of the pressing portion is passed through the relief hole.

[0026] By adopting the above technical solution, the avoidance hole can limit the pressing part, so that the pressing part can be stably arranged in the socket body and move vertically along the length direction of the socket part, thereby preventing the pressing part from shaking and affecting the cooperation between the through hole on the limiting part and the socket part, causing the problem that the pin part cannot be inserted.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The first base portion of the plug body is used to achieve electrical connection between the plug portion and the power cord. The first peripheral portion is arranged around the outer periphery of the plug portion, thereby arranging the plug portion in the first cavity. A partition portion is provided in the first cavity, and the partition portion divides the first cavity into multiple partition chambers. Each partition chamber is provided with a plug portion, so that different plug portions are separated, thereby increasing the electrical clearance and creepage distance, and reducing the risk of arc short circuit when the plug portions of different polarities are electrically connected; the second base portion of the socket body is used to electrically connect the socket portion to the power supply. When the plug body and the socket body are plugged in, the plug portion is inserted into the socket portion, and the first peripheral portion is inserted into the second cavity. Since a partition groove is provided in the second cavity, the partition portion can be inserted into the partition groove, so that the plug portion can be separated by the partition portion during and after the plugging process, thereby reducing the generation of arc between the socket portions of different polarities, so that the system can be adapted to both 250V AC and 400V DC scenarios, improving applicability, convenience of use, and safety;

[0029] 2. When the plug portion is a three-core plug structure and the socket portion is a three-hole socket structure, to achieve relative separation between the three plug portions, the partition portion and the partition groove are both configured as T-shaped, thereby reliably separating two adjacent plug portions. The three ends of the T-shaped partition portion are respectively connected to the three side walls of the first peripheral portion, which can achieve separation of different plug portions within the first cavity through physical connection, avoiding the problem of increased risk of arcing between the socket portions and plug portions of different polarities due to gaps between the partition portion and the side walls of the first peripheral portion.

[0030] 3. The first inclined surface and the second inclined surface serve as guide structures, which can make it easier for the plug part to be inserted into the socket part, thereby reducing the difficulty of plugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the socket body of an embodiment of the present application.

[0032] Figure 2 Schematic diagram of the plug body of an embodiment of the present application.

[0033] Figure 3 This is a front view of the plug body of an embodiment of the present application.

[0034] Figure 4 1 is a schematic diagram of the assembly of the self-locking component and the second base portion of an embodiment of the present application.

[0035] Figure 5 This is a top view of the socket body of an embodiment of the present application.

[0036] Figure 6 yes Figure 5 Cross-section view at AA in the middle.

[0037] Figure 7 Schematic diagram of the self-locking assembly of an embodiment of the present application.

[0038] Description of reference numerals:

[0039] 100. Power cord; 1. Plug body; 11. First base portion; 12. First peripheral portion; 13. Latch portion; 14. Partition portion; 141. First inclined surface; 15. Partition chamber; 2. Socket body; 21. Second base portion; 211. Limiting slot; 22. Second peripheral portion; 23. Socket portion; 231. Second inclined surface; 232. Socket sleeve; 24. Partition slot; 3. Self-locking assembly; 31. Pressing portion; 311. Limiting slot; 32. Limiting portion; 321. Through hole; 33. Elastic portion. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1 -Attached Figure 7 The present application is further described in detail. In this embodiment, unless otherwise specified, the terms "connected", "connected" and "fixed" are understood in a broad sense, including fixed connection, detachable connection, connection to form an integral structure, mechanical connection, electrical connection, direct connection, indirect connection through an intermediary, internal connection and interaction between two elements, and can be understood based on the specific circumstances.

[0041] In this application, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. Moreover, in the description of this embodiment, the terms "above", "below", "right", and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise specified, orientation words such as "inside" and "outside" used in this application refer to the outlines of the corresponding components themselves.

[0042] like Figure 1 and Figure 2 As shown, embodiments of the present application disclose a socket plug system for 400V DC power (hereinafter referred to as the "system"). The system includes a plug body 1 and a socket body 2. This system is designed to prevent arcing and short circuits between different polarities, making it suitable for both 250V AC and 400V DC power scenarios. This reduces the need to replace or equip specialized plugs for different usage scenarios, thereby improving ease of use. Furthermore, the system can safely disconnect current when the 400V DC current reaches full load.

[0043] The plug body 1 includes a first base portion 11, a first peripheral portion 12, a plug portion 13, and a partition portion 14. One end of the first base portion 11 is connected to a power cord 100, which is connected to an electrical appliance and can transmit electrical energy to the appliance. The first peripheral portion 12 is provided at the other end of the first base portion 11. The first peripheral portion 12 is provided on the first base portion 11 to form a first cavity. The first base portion 11 of the plug body 1 is used to achieve an electrical connection between the plug portion 13 and the power cord 100. One end of the plug portion 13 is connected to the first base portion 11, and the other end is used to cooperate with the socket body 2. The plug portion 13 is provided in the first cavity, and there are several plug portions 13. The bottom of the partition portion 14 is connected to the first base portion 11, and the circumferential ends of the partition portion 14 are connected to the inner wall of the first peripheral portion 12, dividing the first cavity into several partition chambers 15. The latches 13 correspond to the isolation chambers 15 one by one, with each isolation chamber 15 housing a latch 13. This separates the latches 13, increasing clearance and creepage distances and reducing the risk of arcing when connecting latches 13 of different polarities. The isolation chamber 14 is longer than or equal to the latch 13 along its length, optimizing isolation.

[0044] like Figure 1 and Figure 2As shown, the socket body 2 includes a second base portion 21, a second peripheral portion 22, a socket portion 23, and a partition slot 24. The second base portion 21 is connected to a power source and a socket portion 23 on either side, electrically connecting the socket portion 23 to the power source, thereby transmitting electrical energy to the plug body 1. The power source can be a battery or other structure capable of providing power. The second peripheral portion 22 is located on the other side of the second base portion 21. The second peripheral portion 22 encloses a second cavity, into which the first peripheral portion 12 can be inserted for plug-in connection. The socket portion 23 is located within the second cavity. Several socket portions 23 are provided, corresponding one-to-one with the plug portion 13, allowing the plug portion 13 to be inserted into the socket portion 23 for electrical connection. A partition slot 24 is provided between different socket portions 23, ensuring relative independence between the socket portions 23. The partition portion 14 can be inserted into the partition slot 24. The socket portion 23 may be a block structure with a plug hole, in which an electrical component is provided for electrical connection with the plug portion 13 .

[0045] When the plug body 1 and the socket body 2 are plugged in, the pin portion 13 is inserted into the socket portion 23, and the first peripheral portion 12 is inserted into the second cavity. Since a partition groove 24 is provided in the second cavity, the partition portion 14 can be inserted into the partition groove 24. As a result, during and after the plug-in process, the partition portion 14 can separate the pin portion 13, reducing the generation of arcs between the pin portions 13 of different polarities. This allows the system to be adapted to both 250V AC and 400V DC scenarios, improving applicability, safety, and ease of use. The first base portion 11 and the second base portion 21 carry the necessary electrical components to achieve electrical connection between the plug body 1 and the socket body 2 after plugging in; the first peripheral portion 12 and the second peripheral portion 22 are respectively arranged around the first base portion 11 and the second base portion 21. The socket body 2 is used to cooperate with the plug body 1. The size, shape and other parameters of each structure can be set as needed so that the pin portion 13 of the plug body 1 can be reliably inserted into the socket portion 23 of the socket body 2 to achieve electrical connection.

[0046] like Figure 1 、 Figure 2 and Figure 3As shown, optionally, three plug portions 13 and three socket portions 23 are each provided, and the partition portion 14 and the partition slot 24 are both T-shaped. When the plug portion 13 is a three-pin plug structure and the socket portion 23 is a three-hole socket structure, to achieve relative separation between the three plug portions 13, the partition portion 14 and the partition slot 24 are both T-shaped, thereby reliably separating two adjacent plug portions 13. The three circumferential ends of the partition portion 14 are respectively connected to the three inner side walls of the first peripheral portion 12, separating the three plug portions 13 from each other. The three ends of the T-shaped partition portion 14 are respectively connected to the three side walls of the first peripheral portion 12, which can achieve physical separation of different plug portions 13 within the first cavity, avoiding the problem of gaps between the partition portion 14 and the side walls of the first peripheral portion 12, which would increase the risk of arcing between the socket portions 23 and the plug portions 13 of different polarity.

[0047] like Figure 1 、 Figure 2 and Figure 3 As shown, the end of the partition portion 14 away from the first base portion 11 is optionally provided with a plurality of first inclined surfaces 141, and the end of the socket portion 23 away from the second base portion 21 is provided with a plurality of second inclined surfaces 231. The first inclined surfaces 141 and the second inclined surfaces 231 serve to guide the pin portion 13 when it is inserted into the socket portion 23. The first inclined surfaces 141 and the second inclined surfaces 231 act as guide structures, making it easier for the pin portion 13 to be inserted into the socket portion 23, thus reducing the difficulty of plugging. The outer periphery of the socket portion 23 is provided with rounded corners, and the first peripheral portion 12 mates with the outer periphery of the socket portion 23 so that the first peripheral portion 12 is positioned outside the socket portion 23 after plugging. The rounded corners reduce the risk of collision during plugging, improving the smoothness of plugging and operational safety. Parameters such as the inclination direction and angle of the first inclined surfaces 141 and the second inclined surfaces 231 can be set according to actual usage needs.

[0048] like Figure 1 、 Figure 2 and Figure 4 As shown, optionally, a socket 232 is provided within the receptacle portion 23. The socket 232 has a C-shaped structure, and the latch portion 13 is inserted into the socket 232 to achieve electrical connection between the latch portion 13 and the receptacle portion 23. Compared to the bell-shaped socket structure in the related art that requires a hinged structure for insertion, the C-shaped socket 232 takes up less space within the second peripheral portion 22, which helps provide space for the partition slot 24 to allow the partition portion 14 to be inserted.

[0049] Optionally, the partition portion 14 is made of an insulating material so that the partition portion 14 can reliably separate the latch portion 13, thereby increasing or decreasing the electrical clearance and creepage distance.

[0050] like Figure 4 、 Figure 5 and Figure 6 As shown, optionally, a self-locking assembly 3 is provided in the socket body 2, and the self-locking assembly 3 is assembled and connected with the second base portion 21 and is provided in the second cavity. The self-locking assembly 3 includes a pressing portion 31, a limiting portion 32 and an elastic portion 33. The pressing portion 31 is provided on the second base portion 21, and the elastic portion 33 is provided in the accommodating cavity in the pressing portion 31. The two ends of the elastic portion 33 are respectively connected to the pressing portion 31 and the second base portion 21, so that the pressing portion 31 can move vertically relative to the second base portion 21 along the length direction of the socket portion 23 through the elastic portion 33. The first end of the limiting portion 32 is movably connected to the pressing portion 31, and the second end of the limiting portion 32 is matched with the second base portion 21 and is lower than the first end of the limiting portion 32. The limiting portion 32 is tilted so that the vertical movement of the pressing portion 31 can drive the inclination angle of the limiting portion 32 to change. The stopper 32 is provided with a through hole 321, which corresponds to the insertion hole 23. By varying the inclination angle of the stopper 32, the latch 13 can be inserted into the through hole 321 within the insertion hole 23. The specific structure of the second base portion 21 is tailored to the needs and function. In the initial state of the elastic portion 33, the inclination angle of the stopper 32 is at its maximum. Compressing the elastic portion 33 reduces the inclination angle of the stopper 32.

[0051] like Figure 2 、 Figure 4 and Figure 6 As shown, when the latch portion 13 is plugged into the socket portion 23, the latch portion 13 passes through the through hole 321 in the limiting portion 32 to continue extending into the socket portion 23. To maintain this extension, the latch portion 13 can press down on the limiting portion 32 during the insertion process, causing the limiting portion 32 to drive the pressing portion 31 to compress the elastic portion 33, thereby adjusting the height of the first end of the limiting portion 32 to decrease. Because the first end of the limiting portion 32 is movably connected to the pressing portion 31, the second end of the limiting portion 32 is constrained by the second base portion 21. Therefore, the inclination angle of the limiting portion 32 can be adjusted while the height of the second end of the limiting portion 32 remains unchanged, thereby increasing the horizontal cross-sectional area of ​​the through hole 321, allowing the latch portion 13 to pass through the through hole 321 and achieve plugging with the socket portion 23. During the removal of the latch 13, the tilt of the stopper 32 causes the peripheral wall of the through hole 321 to engage with the latch 13. Without depressing the pressing portion 31, the further the latch 13 is pulled, the tighter the engagement between the stopper 32 and the latch 13 becomes, thus restricting the removal of the latch 13 and achieving self-locking. In this embodiment, the main purpose is to protect the structure that achieves self-locking; the elastic portion 33 may be a spring.

[0052] like Figure 4 、 Figure 6 and Figure 7As shown, optionally, the pressing portion 31 is U-shaped, and the first and second ends of the pressing portion 31 are both hollow columnar structures. The first end of the pressing portion 31 is higher than the second end, and the first and second lower ends of the pressing portion 31 are connected by a plate-like structure to form a U-shape, and the plate-like structure cooperates with the second base portion 21. The first end of the pressing portion 31 is arranged on the outside away from the second peripheral portion 22, and the first end of the pressing portion 31 is used to drive the second end of the pressing portion 31 to move vertically. The U-shaped pressing portion 31 can keep the first end of the pressing portion 31 used for manual pressing away from the second end of the pressing portion 31 used for cooperating with the limiting portion 32, thereby keeping the hand away from the latch portion 13 and the socket portion 23, thereby improving the operational safety during manual pressing. The second end of the pressing portion 31 is arranged on one side of the plug-in hole of the socket portion 23, and a limiting groove 311 is provided on the side of the second end of the pressing portion 31 close to the plug-in hole. The first end of the limiting portion 32 is movably arranged in the limiting groove 311, so that the vertical movement of the pressing portion 31 drives the inclination angle of the limiting portion 32 to change.

[0053] like Figure 2 、 Figure 5 and Figure 7 When the locking nut 31 is unlocked, the locking nut 33 is unlocked and the locking nut 33 is unlocked, so that the locking nut 33 can be unlocked when the locking nut 33 is unlocked. The top of the first end of the pressing portion 31 is a concave arc-shaped structure, which can reduce the risk of slipping when manually pressed and improve operational reliability. It can be understood that a limit plate is provided on the side of the second peripheral portion 22 away from the second base portion 21, and a pressing hole is provided on the limit plate. The pressing hole is used to extend the first end of the pressing portion 31 so that the first end of the pressing portion 31 protrudes from the end of the second peripheral portion 22 away from the second base portion 21. The first end of the pressing portion 31 slides with the pressing hole to achieve a pressing action. The space between the outer side of the side wall of the second peripheral portion 22 and the first end of the pressing portion 31 can be used to reserve space for other functional parts, thereby improving space utilization.

[0054] like Figure 2 、 Figure 5 and Figure 7As shown, optionally, a clearance hole is provided on the socket portion 23, and the top of the second end of the pressing portion 31 is inserted into the clearance hole. The clearance hole can limit the pressing portion 31, allowing the pressing portion 31 to be stably located in the socket body 2 and to move vertically along the length of the socket portion 23. This prevents the pressing portion 31 from shaking and affecting the fit between the through hole 321 of the limiting portion 32 and the socket portion 23, thereby preventing the plug portion 13 from being inserted.

[0055] like Figure 2 、 Figure 4 and Figure 7 As shown, optionally, the longitudinal cross-sectional area of ​​the limiting groove 311 is larger than the longitudinal cross-sectional area of ​​the first end of the limiting portion 32, so that the first end of the limiting portion 32 can move in the limiting groove 311. When the limiting portion 32 is subjected to downward pressure from the latch portion 13, the first end of the limiting portion 32 rotates relative to the pressing portion 31, driving the pressing portion 31 downward, so that the latch portion 13 can be inserted into the insertion hole 23; alternatively, when the pressing portion 31 is subjected to downward pressure, it can drive the first end of the limiting portion 32 downward. Through the relative rotation between the first end of the limiting portion 32 and the pressing portion 31, the inclination angle of the limiting portion 32 is changed, so that the latch portion 13 can be pulled out of the insertion hole 23.

[0056] like Figure 2 、 Figure 4 and Figure 7 As shown, optionally, the second base portion 21 is provided with a limiting slot 211, and the second end of the limiting portion 32 is movably disposed in the limiting slot 211, so that the limiting portion 32 can always overlap the bottom of the limiting slot 211. The limiting slot 211 can limit the lowest position and horizontal position of the second end of the limiting portion 32, preventing it from moving downward when the first end of the limiting portion 32 moves downward, affecting the adjustment of the inclination angle of the limiting portion 32. At the same time, it allows the limiting portion 32 to be mounted between the pressing portion 31 and the limiting slot 211, reducing the risk of accidental detachment of the limiting portion 32. The limiting portion 32 is a rectangular plate with a through hole 321 in the middle. The two ends of the rectangular plate are provided with protruding plates for respectively cooperating with the limiting slot 311 and the limiting slot 211.

[0057] It can be understood that the system also includes necessary structures for connection, support, driving, positioning, limiting, sealing and control functions so that the system can operate normally; parameters such as the shape, size, material and setting quantity of each part of the system can be determined as needed to achieve the corresponding functions.

[0058] The implementation principle of a socket plug system for 400V DC power in the embodiment of the present application is as follows: the plug portion 13 is electrically connected to the power cord 100 through the first base portion 11 of the plug body 1, the plug portion 13 is arranged in a first cavity surrounded by the first peripheral portion 12, and a partition portion 14 is provided in the first cavity. The partition portion 14 divides the first cavity into a plurality of partition chambers 15, and each partition chamber 15 is provided with a plug portion 13, so that different plug portions 13 are separated, the electrical gap and creepage distance are increased, and the risk of arc short circuit when the plug portions 13 of different polarities are electrically connected is reduced; the first portion of the socket body 2 is provided with a plurality of partition chambers 15, and ... The second base portion 21 electrically connects the socket portion 23 to the power supply. When the plug body 1 and the socket body 2 are plugged in, the pin portion 13 is inserted into the socket portion 23, and the first peripheral portion 12 is inserted into the second cavity. Since a partition groove 24 is provided in the second cavity, the partition portion 14 can be inserted into the partition groove 24, so that during and after the plugging process of the pin portion 13, the partition portion 14 can separate the pin portion 13, thereby reducing the generation of arcs between the socket portions 23 of different polarities, so that the system can be used in relatively low-voltage 250V AC scenarios and relatively high-voltage 400V DC scenarios, thereby improving applicability and ease of use.

[0059] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A socket and plug system for 400V DC, characterized in that: include: A plug body (1), the plug body (1) comprising a first base portion (11), a first peripheral portion (12), a plug portion (13) and a partition portion (14), one end of the first base portion (11) being connected to a power cord (100), the first peripheral portion (12) being arranged at the other end of the first base portion (11), the first peripheral portion (12) surrounding and forming a first cavity, one end of the plug portion (13) being connected to the first base portion (11), the plug portion (13) being arranged in the first cavity, a plurality of the plug portions (13) being provided, an end of the partition portion (14) being connected to an inner side wall of the first peripheral portion (12), dividing the first cavity into a plurality of partition chambers (15), the plug portions (13) corresponding to the partition chambers (15) one to one, and along the length extension direction of the plug portion (13), the length of the partition portion (14) being greater than or equal to the length of the plug portion (13); A socket body (2) is provided, wherein the socket body (2) comprises a second base portion (21), a second peripheral portion (22), a socket portion (23) and a partition groove (24), one side of the second base portion (21) is connected to a power source, the second peripheral portion (22) is arranged on the other side of the second base portion (21), the second peripheral portion (22) is arranged to form a second cavity, the first peripheral portion (12) can be inserted into the second cavity, the socket portion (23) is arranged in the second cavity, a plurality of socket portions (23) are provided, the socket portions (23) correspond to the pin portions (13) one by one, so that the pin portion (13) can be inserted into the socket portions (23), a partition groove (24) is provided between different socket portions (23), so that the socket portions (23) are relatively independent, and the partition portion (14) can be inserted into the partition groove (24).

2. The socket and plug system for 400V DC according to claim 1, characterized in that: The latch portions (13) and the socket portions (23) are each provided with three, the partition portion (14) and the partition groove (24) are both T-shaped, and the three ends of the partition portion (14) are respectively connected to the three inner side walls of the first peripheral portion (12), so that the three latch portions (13) are separated from each other.

3. The socket and plug system for 400V DC according to claim 1, characterized in that: The end of the partition portion (14) away from the first base portion (11) is provided with a plurality of first inclined surfaces (141), and the end of the socket portion (23) away from the second base portion (21) is provided with a plurality of second inclined surfaces (231), and the first inclined surfaces (141) and the second inclined surfaces (231) are used for guiding when the latch portion (13) is inserted into the socket portion (23).

4. The socket and plug system for 400V DC according to claim 1, characterized in that: The partition portion (14) is made of insulating material.

5. The socket and plug system for 400V DC according to claim 1, characterized in that: A socket (232) is provided in the socket portion (23), the socket (232) being a C-shaped structure, and the socket (232) is used for electrical connection with the pin portion (13).

6. The socket and plug system for 400V DC according to claim 1, characterized in that: A self-locking assembly (3) is provided in the socket body (2), and the self-locking assembly (3) includes a pressing portion (31), a limiting portion (32) and an elastic portion (33). The pressing portion (31) is provided on the second base portion (21), and the elastic portion (33) is provided in an accommodating cavity in the pressing portion (31). The two ends of the elastic portion (33) are respectively connected to the pressing portion (31) and the second base portion (21). The elastic portion (33) enables the pressing portion (31) to move vertically. The first end of the limiting portion (32) is movably connected to the pressing portion (31). 1), the second end of the limiting portion (32) cooperates with the second base portion (21) and is lower than the first end of the limiting portion (32), the limiting portion (32) is tilted so that the vertical movement of the pressing portion (31) can drive the tilt angle of the limiting portion (32) to change, the limiting portion (32) is provided with a through hole (321), and the through hole (321) is correspondingly arranged with the socket portion (23), and the pin portion (13) can be inserted into the through hole (321) in the socket portion (23) by changing the tilt angle of the limiting portion (32).

7. The socket and plug system for 400V DC according to claim 6, characterized in that: The pressing portion (31) is U-shaped, and the first end of the pressing portion (31) is arranged on the outside away from the second peripheral portion (22). The first end of the pressing portion (31) is used to drive the second end of the pressing portion (31) to move vertically. The second end of the pressing portion (31) is provided with a limiting groove (311), and the first end of the limiting portion (32) is movably arranged in the limiting groove (311), so that the vertical movement of the pressing portion (31) drives the inclination angle of the limiting portion (32) to change.

8. The socket and plug system for 400V DC according to claim 7, characterized in that: The longitudinal cross-sectional area of ​​the limiting groove (311) is larger than the longitudinal cross-sectional area of ​​the first end of the limiting portion (32), so that the first end of the limiting portion (32) can move in the limiting groove (311).

9. The socket and plug system for 400V DC according to claim 8, characterized in that: The second base portion (21) is provided with a limiting slot (211), the second end of the limiting portion (32) is movably disposed in the limiting slot (211), and the limiting portion (32) is overlapped with the bottom of the limiting slot (211).

10. The socket and plug system for 400V DC according to claim 7, characterized in that: The insertion hole portion (23) is provided with a relief hole, and the top of the second end of the pressing portion (31) is inserted into the relief hole.

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