AC / DC integrated charging socket

Abstract

The utility model belongs to the technical field of new energy vehicle charging, and discloses an alternating current and direct current integrated charging socket which comprises a square plate, an alternating current socket assembly and a direct current socket assembly are arranged on the square plate, the alternating current socket assembly comprises an AC insulator, an AC tail cover is arranged on the rear side of the AC insulator, and an AC circuit board is arranged in the AC tail cover. The AC circuit board is provided with five AC power contacts, two pin contacts and four chip resistors, the DC socket assembly comprises a DC insulator, the rear side of the DC insulator is provided with a pressing plate, the DC insulator is internally provided with a DC circuit board, the DC circuit board is provided with two DC power contacts and six pin contacts, the DC power contacts are provided with temperature sensors, and the temperature sensors are provided with temperature sensors. And the six pin contacts and the two temperature sensors on the DC circuit board are communicated to the ten-core low-voltage plug-in. The signal pin of the charging gun is in direct contact with the circuit board, signals are collected by the circuit board and then are connected with an automobile control system through a signal line, signal transmission can be carried out without redundant parts and wire harnesses, the structure is simple, and assembly is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicle charging, in particular to an AC / DC integrated charging socket. Background Art

[0002] There are two ways to charge electric vehicles: AC charging and DC charging. AC charging uses an AC power source to provide power to electric vehicles. This method generally has a low power output and is also known as slow charging. DC charging, on the other hand, involves the charging equipment rectifying the AC power from the grid before inputting it into the vehicle. Charging power ranges from 20kW, 40kW, and 60kW to 200kW, 250kW, and 350kW. As long as the input (grid) and output (vehicle) support it, it can be very high, hence the name fast charging.

[0003] Electric vehicles typically have two types of charging sockets: AC and DC. To facilitate their placement, most automakers currently utilize integrated AC / DC charging sockets. Existing sockets lack signal integration and quick-connect features for power cables, requiring multiple components to be threaded and crimped simultaneously. Assembly is complex, with numerous parts and a complex structure, making it difficult. With the rapid development of new energy electric vehicles, automakers are placing higher demands on the cost and assembly efficiency of downstream components. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an AC / DC integrated charging socket.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: an AC / DC integrated charging socket, comprising a square plate connected to a vehicle body, characterized in that: an AC socket assembly and a DC socket assembly are arranged at intervals on the square plate, the AC socket assembly comprises an AC insulator arranged on the square plate, an AC tail cover for sealing a wiring harness is arranged on the rear side of the AC insulator, an AC circuit board is arranged inside the AC insulator, 5 AC power contacts are arranged on the AC circuit board, the front end of the AC power contact is used to connect to a charging gun plug, and the rear end is connected to a vehicle body wiring harness, a CC pin contact, a CP pin contact and 4 chip resistors are arranged on the AC circuit board, the CC pin contact, the CP pin contact and the 4 chip resistors are connected to an eight-core plug-in, the DC socket assembly comprises a DC C insulator, a pressure plate for sealing the wiring harness is provided on the rear side of the DC insulator, a DC circuit board is provided in the DC insulator, two DC power contacts are provided on the DC circuit board, the front end of the DC power contact is used to connect to the charging gun plug, and the rear end is connected to the vehicle body wiring harness, a temperature sensor is provided on the DC power contact, and a CC1 pin contact, CC2 pin contact, A+ pin contact, A- pin contact, S+ pin contact, and S- pin contact are provided on the DC circuit board. The CC1 pin contact, CC2 pin contact, A+ pin contact, A- pin contact, S+ pin contact, S- pin contact and two temperature sensors are connected to a ten-core low-voltage plug-in, and the eight-core plug-in and the ten-core low-voltage plug-in are connected to the vehicle control system through signal lines.

[0006] By adopting the above technical solution, an AC insulator, an AC tail cover, an AC circuit board, an AC power contact, a DC insulator pressure plate, a DC circuit board, and a DC power contact are set. The AC circuit board is used to integrate the signals of the four chip resistors and the CC pin and CP pin on the AC charging gun. The DC circuit board is used to integrate the signals of the two temperature sensors and the CC1 pin, CC2 pin, A+ pin, A- pin, S+ pin, and S- pin on the DC charging gun. The signal pin of the charging gun is directly in contact with the circuit board. The signal is collected by the circuit board and connected to the vehicle control system through the signal line. No extra parts and wiring harnesses are required for signal transmission. The structure is simple and easy to assemble.

[0007] Furthermore, five AC power holes are provided on the AC circuit board, the AC power contact is arranged in the AC power hole, a copper ring in contact with the AC power contact is also provided in the AC power hole, a copper layer connected to the copper ring is provided inside the AC circuit board, and the chip resistor is provided on the copper layer.

[0008] By adopting the above technical solution, an AC power hole, a copper-clad ring, and a copper-clad layer are set. The copper-clad ring contacts the AC power contact, and the heat of the AC power contact is transferred to the chip resistor through the copper-clad layer, thereby realizing the detection of the temperature of the AC power contact. This temperature measurement method is low-cost and maximizes the accuracy of temperature measurement.

[0009] Furthermore, a hollow plug-in post is provided at the front end of the DC insulator and is covered on the outside of the DC power contact piece. A split groove is provided on the lower side of the hollow plug-in post along its length direction.

[0010] By adopting the above technical solution, a hollow plug post is provided to protect the DC power contact to prevent the DC power contact from being exposed, and a split groove is provided on the lower side of the hollow plug post. When water enters the front end of the DC socket assembly, the water can flow out from the split groove, preventing water from flowing from the hollow plug post to the DC circuit board.

[0011] Furthermore, a plurality of anti-rotation blocks and anti-rotation plates are circumferentially arranged on the bottom of the hollow plug-in column, and the DC power contact is provided with anti-rotation grooves corresponding to the anti-rotation blocks.

[0012] By adopting the above technical solution, several anti-rotation blocks and anti-rotation plates are arranged circumferentially at the bottom of the hollow plug-in column, and anti-rotation grooves are opened in the DC power contact pieces corresponding to the anti-rotation blocks to limit the DC power contact pieces and prevent them from rotating.

[0013] Furthermore, a mounting hole is provided on the DC power contact, and the temperature sensor is arranged in the mounting hole. A groove for limiting the temperature sensor wiring harness is provided on one of the rotating plates, and a convex strip is provided at the notch of the groove.

[0014] By adopting the above technical solution, mounting holes, grooves, and convex strips are provided, and the temperature sensor is provided in the mounting hole, thereby ensuring the accuracy of temperature detection. The temperature sensor wiring harness is limited by the groove, and the convex strips are provided to prevent the temperature sensor wiring harness from falling out of the groove.

[0015] Furthermore, the DC insulator is provided with a guide column and a fixing column, and the DC circuit board is correspondingly provided with a guide hole and a fixing hole, the guide column cooperates with the guide hole, and the fixing column cooperates with the fixing hole.

[0016] By adopting the above technical solution, the assembly between the DC circuit board and the DC insulator is facilitated by the cooperation between the guide column and the guide hole, and the DC circuit board and the DC insulator are fixed together by the cooperation between the fixing column and the fixing hole.

[0017] Furthermore, a sealing plug cooperating with the DC insulator is provided on the side of the pressure plate adjacent to the insulator, a buckle is provided on the side of the pressure plate protruding toward the DC insulator, a boss is correspondingly provided on the outer wall of the DC insulator, the buckle and the boss form a snap fit, the pressure plate is circumferentially provided with assembly holes, and threaded holes are provided on the DC insulator corresponding to the assembly holes.

[0018] By adopting the above technical solution, a sealing plug, a buckle, a boss, an assembly hole, and a threaded hole are provided, and a sealing ring is provided on the side of the pressure plate adjacent to the insulator to ensure the seal between the pressure plate and the DC insulator. The pressure plate is fixed to the DC insulator by forming a snap fit with the buckle and the boss, and the bolt is passed through the assembly hole and screwed into the threaded hole to further fix the pressure plate to the DC insulator.

[0019] To sum up, the utility model has the following beneficial effects: in this application, an AC insulator, an AC tail cover, an AC circuit board, an AC power contact, a DC insulator pressure plate, a DC circuit board, and a DC power contact are provided. The AC circuit board is used to integrate the signals of the four chip resistors and the CC pin and the CP pin on the AC charging gun. The DC circuit board is used to integrate the signals of the two temperature sensors and the CC1 pin, CC2 pin, A+ pin, A- pin, S+ pin, and S- pin on the DC charging gun. The signal pin of the charging gun is directly in contact with the circuit board. The signal is collected by the circuit board and connected to the vehicle control system through the signal line. No extra parts and wiring harnesses are required for signal transmission. The structure is simple and easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0021] Figure 2 This is a structural diagram of another angle of the embodiment of the utility model;

[0022] Figure 3 This is a schematic structural diagram of the AC socket assembly portion of an embodiment of the present utility model;

[0023] Figure 4 This is a schematic structural diagram of the AC circuit board and AC power contact part of an embodiment of the present utility model;

[0024] Figure 5 This is a schematic structural diagram of the DC socket assembly portion of an embodiment of the present utility model;

[0025] Figure 6 This is a schematic structural diagram of the DC insulator portion of an embodiment of the present utility model;

[0026] Figure 7 This is a schematic structural diagram of the DC circuit board portion of an embodiment of the present utility model;

[0027] Figure 8 This is a schematic structural diagram of the DC insulator and DC circuit board portion of an embodiment of the present utility model;

[0028] Figure 9 yes Figure 8 Magnified view of part A.

[0029] In the figure: 1. Square plate; 10. AC socket assembly; 11. AC insulator; 12. AC tail cover; 13. AC circuit board; 131. CC pin contact; 132. CP pin contact; 14. AC power contact; 15. Chip resistor; 16. Eight-core plug-in; 17. AC power hole; 18. Copper ring; 20. DC socket assembly; 21. DC insulator; 22. Boss; 23. Hollow plug-in column; 24. Splitting groove; 25. Anti-rotation block; 26. Rotation plate; 27. Guide column; 28. Fixed column; 29. ​​Groove; 291. Raised strip; 30. Pressure plate; 31. Buckle; 32. Assembly hole; 33. Fixed tube; 34. Back cover; 40. DC circuit board; 41. Guide hole; 42. Fixing hole; 43. Ten-core low-voltage plug-in; 50. DC power contact; 51. Anti-rotation groove; 52. Mounting hole; 60. CC1 pin contact; 61. CC2 pin contact; 62. A+ pin contact; 63. A- pin contact; 64. S+ pin contact; 65. S- pin contact. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] like Figure 1-9 As shown, the embodiment of the present application discloses an AC / DC integrated charging socket, including a square plate 1. Four bushings are inlaid around the periphery of the square plate 1. Bolts are passed through the bushings and screwed onto the vehicle body to achieve the installation and fixation of the square plate 1 and the vehicle body. An AC socket assembly 10 and a DC socket assembly 20 are arranged at intervals on the square plate 1. The AC socket assembly 10 is used to connect to the AC charging gun, and the DC socket assembly 20 is used to connect to the DC charging gun. Eight carbon steel nuts are injection-molded on the back of the square plate 1 for connecting to the AC socket assembly 10 and the DC socket assembly 20.

[0032] Specifically, the AC outlet assembly 10 includes an AC insulator 11, an AC circuit board 13, an AC power contact 14, and an AC tail cover 12. The AC circuit board 13 is disposed within the AC insulator 11 and has five AC power ports 17 formed therein. The AC power contact 14 is disposed within the AC power ports 17, with its front end extending toward the square plate for connection to the charging gun plug and its rear end extending toward the AC tail cover 12 for connection to the wiring harness connected to the vehicle body. The AC power contact 14 is secured to the wiring harness using ultrasonic welding, which provides low welding resistance and temperature rise, thus avoiding the risk of high-temperature burnout of the AC outlet assembly 10. A copper ring 18 is also disposed within the AC power port 17, contacting the AC power contact 14. When the AC power contact 14 is inserted into the AC power port 17, the step on the AC power contact 14 snaps onto the inner wall of the copper ring 18. A copper layer connected to the copper ring 18 is disposed within the AC circuit board 13, and four chip resistors 15 are disposed on the circuit board, connected to the copper layer. Chip resistors 15 are chip-type temperature sensors with low cost, high assembly automation, and excellent product consistency. The AC circuit board 13 is equipped with CC pin contacts 131 and CP pin contacts 132. These CC pin contacts 131, CP pin contacts 132, and the four chip resistors 15 are connected to the eight-core plug-in 16 on the AC circuit board 13. When the AC power contact 14 is energized and heated, heat is transferred to the chip resistors 15 through the copper ring 18 and the copper layer. Heat is then transferred to the control system via the signal pins and the eight-core plug-in 16, enabling temperature monitoring of the AC outlet assembly 10.

[0033] The AC insulator 11 is made of insulating material and is provided with a guide rod and a fixing rod therein. Corresponding guide holes and fixing holes are provided on the AC circuit board 13. During assembly, the guide holes on the AC circuit board 13 are aligned with the guide rods on the insulator and inserted to ensure the installation angle of the AC circuit board 13. At the same time, the fixing holes on the AC circuit board 13 will cooperate with the fixing rods on the AC insulator 11. The front end of the fixing rod is in the shape of an open pin. After insertion, the front end of the fixing rod opens so that the AC circuit board 13 is fixed in the insulator. A hollow wire plug tube is also provided at the front end of the AC insulator 11 to cover the outside of the AC power contact 14. The hollow wire plug tube is used to protect the AC power contact 14 and prevent the power contact from being exposed. A groove is provided on the lower side of the wire plug rod along its length so that water in the wire plug rod can flow down from the groove to prevent water accumulation in the wire plug rod from affecting electrical safety.

[0034] A stepped groove is provided on the front side of the AC insulator 11, and an annular groove is provided on the side of the square plate adjacent to the AC insulator 11. A mating rubber ring is provided between the stepped groove and the annular groove. The rear end of the mating rubber ring is sleeved onto the stepped groove of the AC insulator 11, and the front end is inserted into the annular groove of the square plate. External ribs are provided outwardly from the rear side of the mating rubber ring. The end faces of the stepped groove of the AC insulator 11 and the outer wall end faces of the annular groove of the square plate clamp the external ribs on either side of the external ribs, thereby ensuring the sealing performance of the connection between the square plate and the AC insulator 11. Several inner ribs are provided on the inner wall of the mating rubber ring. When the charging plug is inserted into the plug rod, the inner ribs fit together with the outer wall of the charging plug to form a seal, preventing the ingress of water, dust, and other foreign matter during charging. During assembly, first put the plug-in rubber ring on the insulator, then align the annular groove of the square plate with the plug-in rubber ring and insert it. Four mounting feet are provided on the circumference of the AC insulator 11. The four mounting feet cooperate with four carbon steel nuts. There are through holes on the mounting feet. Bolts pass through the through holes and are screwed into the carbon steel nuts to fix the AC insulator 11 on the square plate 1.

[0035] A sealing ring is provided on the side of the AC tail cover 12 adjacent to the AC insulator 11 to ensure a seal between the two components. A retaining clip is provided on the side of the AC tail cover 12, protruding toward the insulator. A corresponding protrusion is provided on the outer wall of the AC insulator 11. The retaining clip and the protrusion form a snap-fit ​​connection, assembling the AC tail cover 12 and the AC insulator 11. A fixed sleeve is provided at the rear end of the AC tail cover 12, through which the wiring harness passes. A sealing rubber ring is provided within the fixed sleeve, sealingly contacting the wiring harness. A rear end cap is provided behind the sealing rubber ring. A wedge-shaped latch is provided on the outer wall of the rear end cap, and a corresponding latch is provided on the wall of the fixed sleeve. The wedge-shaped latch and the latch cooperate to assemble the rear end cap and the fixed sleeve. A latching claw, smaller in front and larger in back, is also provided at the front end of the AC tail cover 12, corresponding to the fixed sleeve, to secure the wiring harness to the power contacts. The AC tail cover 12 is also provided with a number of holes, and corresponding connection holes are provided on the insulator. The holes and the connection holes are connected by screws to ensure the stable connection between the AC tail cover 12 and the insulator. During assembly, first fix the connection between the wire harness and the AC power contact 14 by ultrasonic welding, and then put the rear cover and the sealing rubber ring on the wire harness; assemble the AC tail cover 12 to the insulator, and pre-install it by snapping the fixing buckle and the protrusion. At this time, due to the presence of the sealing ring, there will be a gap between the tail cover and the insulator; insert the AC power contact 14 inward from the fixed sleeve of the tail cover, and the power contact passes through the fixed sleeve, the claw, and the AC power hole 17 to reach the wire insertion rod. At this time, the claw is stretched open. When the step of the power contact passes over the claw, the claw retracts, causing the power contact to be unable to retreat, thereby limiting the axial position of the power contact and the wiring harness; the rear end cover and the sealing rubber ring are pushed into the fixed sleeve along the wiring harness, so that the wedge-shaped clamping platform of the rear end cover is clamped into the clamping mouth of the fixed sleeve to fix the rear end cover and the fixed sleeve, and the sealing rubber ring is used to seal between the wiring harness and the fixed sleeve; then the screws are tightened through the hole and the connecting hole to complete the assembly between the AC tail cover 12 and the AC insulator 11.

[0036] The DC socket assembly 20 includes a DC insulator 21, a DC circuit board 40, and a DC power contact 50. The DC circuit board 40 is arranged in the DC insulator 21. Two DC power holes are opened on the DC circuit board 40. The two DC power contacts 50 are respectively arranged in the two DC power holes. The front end thereof extends toward the square plate for connecting the charging plug, and the rear end thereof extends toward the pressing plate 30 for connecting to the wiring harness connected to the vehicle body. The DC power contact 50 and the wiring harness are fixed by ultrasonic welding. The welding resistance is small and the temperature rise is low, thereby avoiding the risk of high-temperature burning of the DC socket assembly 20. A mounting hole 52 is provided on the DC power contact 50, and a temperature sensor is arranged in the mounting hole 52. A CC1 pin contact 60, a CC2 pin contact 61, an A+ pin contact 62, an A- pin contact 63, an S+ pin contact 64, and an S- pin contact 65 are provided on the DC circuit board 40. The CC1 pin contact 60, the CC2 pin contact 61, the A+ pin contact 62, the A- pin contact 63, the S+ pin contact 64, the S- pin contact 65 and the two temperature sensors are connected to the ten-core low-voltage plug-in 43 on the DC circuit board 40, and the ten-core low-voltage plug-in 43 is connected to the vehicle control system via a signal line.

[0037] The DC insulator 21 is made of insulating material and is provided with a guide post 27 and a fixing post 28. A guide hole 41 and a fixing hole 42 are correspondingly provided on the DC circuit board 40. During assembly, the guide hole 41 on the DC circuit board 40 is aligned with the guide post 27 on the insulator and inserted to ensure the installation angle of the DC circuit board 40; at the same time, the fixing hole 42 on the DC circuit board 40 will cooperate with the fixing post 28 on the DC insulator 21. The front end of the fixing post 28 is in the shape of an open pin. After insertion, the front end of the fixing post 28 opens so that the DC circuit board 40 is fixed in the insulator. A hollow plug post 23 is also provided at the front end of the DC insulator 21 to cover the outside of the DC power contact 50. The hollow plug post 23 is used to protect the DC power contact 50 and prevent the DC power contact 50 from being exposed. A split groove 24 is provided on the lower side of the plug post along its length so that water in the plug post can flow down from the split groove 24, preventing water accumulation in the plug post from affecting electrical safety.

[0038] A step groove is provided on the front side of the DC insulator 21, and an annular groove is provided on the side of the square plate adjacent to the insulator. A plug-in rubber ring is provided between the step groove and the annular groove. The rear end of the plug-in rubber ring is sleeved on the step groove of the insulator, and the front end is inserted into the annular groove of the square plate. An external convex rib is provided outwardly on the rear side of the plug-in rubber ring. The end face of the step groove of the insulator and the outer wall end face of the annular groove of the square plate respectively tighten the external rib on both sides of the external rib, thereby ensuring the sealing performance of the connection between the square plate and the DC insulator 21. Lugs and assembly holes 32 are provided at the corresponding ends of the DC insulator 21 and the square plate, so as to be fixed by screw connection. Several circles of inner convex ribs are provided on the inner wall of the plug-in rubber ring so that when the charging plug is inserted into the plug post, the inner convex rib fits with the outer wall of the charging plug for sealing, thereby preventing water, dust and other foreign matter from entering during charging. During assembly, first put the plug-in rubber ring on the DC insulator 21, then align the annular groove of the square plate with the plug-in rubber ring and insert it. There are four mounting feet circumferentially provided on the DC insulator 21. The four mounting feet cooperate with the remaining four carbon steel nuts. There are through holes on the mounting feet. Bolts pass through the through holes and are screwed into the carbon steel nuts to fix the DC insulator 21 on the square plate 1.

[0039] A sealing plug that cooperates with the DC insulator 21 is provided on the side of the pressure plate 30 adjacent to the insulator. A clip 31 is provided on the side of the pressure plate 30 protruding toward the DC insulator 21. A boss 22 is correspondingly provided on the outer wall of the DC insulator 21. The clip 31 and the boss 22 form a snap fit. The pressure plate 30 is fixed to the DC insulator 21 through the snap fit between the clip 31 and the boss 22. The pressure plate 30 is circumferentially provided with assembly holes 32. Threaded holes are provided on the DC insulator 21 corresponding to the assembly holes 32. Bolts are passed through the assembly holes 32 and screwed into the threaded holes to further fix the pressure plate 30 to the DC insulator 21.

[0040] Several anti-rotation blocks 25 and anti-rotation plates 26 are circumferentially arranged at the bottom of the hollow plug-in post 23 on the DC insulator 21. The DC power contact 50 is provided with an anti-rotation groove 51 corresponding to the anti-rotation block 25 to limit the DC power contact 50. A groove 29 is provided on one of the anti-rotation plates to limit the temperature sensor wiring harness. A ridge 291 is provided at the notch of the groove 29 to prevent the temperature sensor wiring harness from falling out of the groove 29. Isolation ribs are provided on the side wall of the DC insulator 21 adjacent to the DC circuit board 40. The isolation ribs are located between the two hollow plug-in posts 23 on the DC insulator 21 to increase the creepage distance between the two DC power contacts 50. Guide posts 27 and fixing posts 28 are provided in the DC insulator 21. Guide holes 41 and fixing holes 42 are provided on the DC circuit board 40 accordingly. The guide posts 27 cooperate with the guide holes 41, and the fixing posts 28 cooperate with the fixing holes 42.

[0041] A fixing tube 33 is provided at the rear end of the pressure plate 30 for the wiring harness to pass through. The DC power contact 50 can be connected to the wiring harness, aluminum rod, or aluminum busbar. When the DC power contact 50 is connected to the wiring harness, a sealing rubber ring is positioned within the fixing tube 33 to seal against the wiring harness. A rear cover 34 is positioned behind the fixing tube 33, with a snap 31 positioned on its outer wall. A wedge-shaped boss 22 is positioned on the wall of the fixing tube 33 to mate with the rear cover 34. When the DC power contact 50 is connected to the aluminum rod, a sealing rubber ring is positioned within the fixing tube 33 to seal against the aluminum rod. A rear cover 34 is positioned behind the fixing tube 33, with a snap 31 positioned on its outer wall. A wedge-shaped boss 22 is positioned on the wall of the fixing tube 33 to mate with the rear cover 34. When the DC power contact 50 is connected to the aluminum busbar, an aluminum busbar tail cover is provided on the rear side of the fixing tube 33. The aluminum busbar tail cover is provided with a through hole for the aluminum busbar to pass through. A sealing rubber ring is provided in the aluminum busbar tail cover for sealing contact with the aluminum busbar. The outer wall of the aluminum busbar tail cover is provided with a clip 31 that cooperates with the wedge-shaped boss 22. The clip 31 cooperates with the wedge-shaped boss 22 to realize the assembly between the back cover 34 and the fixing tube 33.

[0042] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An AC / DC integrated charging socket, comprising a square plate (1) connected to a vehicle body, characterized in that: An AC socket assembly (10) and a DC socket assembly (20) are arranged at intervals on the square plate (1), the AC socket assembly (10) comprising an AC insulator (11) arranged on the square plate (1), an AC tail cover (12) for sealing a wiring harness being arranged at the rear side of the AC insulator (11), an AC circuit board (13) being arranged inside the AC insulator (11), five AC power contacts (14) being arranged on the AC circuit board (13), and the AC power contacts (14) The front end is used to connect to the charging gun plug, and the rear end is used to connect to the vehicle body wiring harness. The AC circuit board (13) is provided with a CC pin contact (131), a CP pin contact (132) and four chip resistors (15). The CC pin contact (131), the CP pin contact (132) and the four chip resistors (15) are connected to the eight-core plug (16). The DC socket assembly (20) includes a DC insulator (21). The rear side of the DC insulator (21) is provided with a compression member for sealing the wiring harness. The DC insulator (21) is provided with a DC circuit board (40), and the DC circuit board (40) is provided with two DC power contacts (50), the front end of the DC power contact (50) is used to connect to the charging gun plug, and the rear end is connected to the vehicle body wiring harness, and the DC power contact (50) is provided with a temperature sensor, and the DC circuit board (40) is provided with a CC1 pin contact (60), a CC2 pin contact (61), and an A+ pin contact (62). ), A- pin contact (63), S+ pin contact (64), S- pin contact (65), CC1 pin contact (60), CC2 pin contact (61), A+ pin contact (62), A- pin contact (63), S+ pin contact (64), S- pin contact (65) and two temperature sensors are connected to the ten-core low-voltage plug-in (43), and the eight-core plug-in (16) and the ten-core low-voltage plug-in (43) are connected to the automobile control system through signal lines.

2. The AC / DC integrated charging socket according to claim 1, characterized in that: The AC circuit board (13) is provided with five AC power holes (17), the AC power contact piece (14) is arranged in the AC power hole (17), a copper clad ring (18) in contact with the AC power contact piece (14) is also arranged in the AC power hole (17), a copper clad layer connected to the copper clad ring (18) is arranged inside the AC circuit board (13), and the chip resistor (15) is arranged on the copper clad layer.

3. The AC / DC integrated charging socket according to claim 1, characterized in that: The front end of the DC insulator (21) is provided with a hollow plug-in post (23) which is covered on the outside of the DC power contact piece (50), and a splitting groove (24) is provided on the lower side of the hollow plug-in post (23) along its length direction.

4. The AC / DC integrated charging socket according to claim 3, characterized in that: A plurality of anti-rotation blocks (25) and anti-rotation plates (26) are arranged circumferentially on the bottom of the hollow plug-in column (23), and an anti-rotation groove (51) is provided on the DC power contact piece (50) corresponding to the anti-rotation block (25).

5. The AC / DC integrated charging socket according to claim 4, characterized in that: The DC power contact piece (50) is provided with a mounting hole (52), and the temperature sensor is arranged in the mounting hole (52); one of the rotating plates (26) is provided with a groove (29) for limiting the temperature sensor wiring harness, and a convex strip (291) is provided at the notch of the groove (29).

6. The AC / DC integrated charging socket according to claim 1, characterized in that: The DC insulator (21) is provided with a guide column (27) and a fixing column (28), and the DC circuit board (40) is provided with a guide hole (41) and a fixing hole (42) correspondingly, the guide column (27) cooperates with the guide hole (41), and the fixing column (28) cooperates with the fixing hole (42).

7. The AC / DC integrated charging socket according to claim 1, characterized in that: A sealing plug cooperating with the DC insulator (21) is arranged on one side of the pressure plate (30) adjacent to the insulator, a buckle (31) is arranged on the side of the pressure plate (30) protruding in the direction of the DC insulator (21), a boss (22) is correspondingly arranged on the outer wall of the DC insulator (21), the buckle (31) and the boss (22) form a snap fit, the pressure plate (30) is provided with an assembly hole (32) in the circumferential direction, and a threaded hole is arranged on the DC insulator (21) corresponding to the assembly hole (32).

Images