Plug and charging and discharging system with same

Abstract

The invention provides a plug and a charging and discharging system with the same, and the plug comprises a housing assembly which is internally provided with an installation cavity; a pin assembly, wherein the pin assembly is arranged on the shell assembly; one end of the cable assembly extends into the mounting cavity and is connected with the pin assembly; the touch switch is arranged in the mounting cavity, and the touch switch is configured to control the contact pin assembly to be disconnected from the cable assembly; and the sealing filling piece is filled in the mounting cavity in a sealing manner. According to the plug disclosed by the invention, the sealing filling piece is arranged, and the sealing filling piece seals the space outside the shell assembly in an insulating manner, so that water vapor or dust can be effectively prevented from entering the mounting cavity, and the use safety of the plug can be further ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of charging and discharging system manufacturing, in particular to a plug and a charging and discharging system having the same. Background Art

[0002] In the existing plug solution, the housing assembly of the plug cannot be insulated and sealed from the external space, which may cause water vapor or dust to enter the interior of the plug, and thus the safety of the plug cannot be guaranteed. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention is to provide a plug that can ensure the safety of the plug.

[0004] The present invention also provides a charging and discharging system having the plug.

[0005] According to the plug of the embodiment of the first aspect of the present invention, it includes: a shell assembly, which defines a mounting cavity; a pin assembly, which is arranged on the shell assembly; a cable assembly, one end of which extends into the mounting cavity and is connected to the pin assembly; and a sealing filler, which seals and fills the mounting cavity.

[0006] According to the plug of the present invention, a sealing filler is provided, which insulates and seals the space outside the shell assembly, thereby effectively preventing moisture or dust from entering the installation cavity, thereby ensuring the safety of the plug.

[0007] According to some embodiments of the present invention, the sealing filler is configured to be injection molded in the mounting cavity.

[0008] According to some embodiments of the present invention, the sealing filler is a resin member.

[0009] According to some embodiments of the present invention, the plug includes a touch switch, which is disposed in the mounting cavity and configured to control the disconnection of the pin assembly from the cable assembly.

[0010] According to some embodiments of the present invention, the housing assembly includes: a housing defining a cavity therein; a mounting plate disposed in the cavity, and the touch switch is fixed to the mounting plate.

[0011] According to some optional embodiments of the present invention, there are two mounting plates, and the two mounting plates are arranged in the cavity at intervals along the thickness direction of the mounting plates. The peripheries of the two mounting plates are connected to the inner wall of the shell, and the mounting cavity is located between the two mounting plates.

[0012] According to some embodiments of the present invention, a through hole is provided on the mounting plate, and the through hole passes through the mounting plate along the thickness direction of the mounting plate. The touch portion of the touch switch is arranged at the position of the through hole so that the touch portion is exposed at the position of the through hole.

[0013] According to some optional embodiments of the present invention, a baffle extending toward the interior of the mounting cavity is formed on the mounting plate, the baffle extends into a ring shape, the baffle and the mounting plate form a fixing groove with one side open, the touch switch is arranged in the fixing groove, and the through hole passes through the bottom wall of the fixing groove.

[0014] According to some embodiments of the present invention, the plug includes: a pressing assembly, the pressing assembly includes a pressing piece, a first through-hole is provided on the shell, the pressing piece is movably inserted into the first through-hole, and at least a portion of the pressing piece extends out of the outside of the shell, and the pressing piece is configured to be suitable for touching the touch portion of the touch switch when pressed.

[0015] According to some optional embodiments of the present invention, the pressing assembly further includes: an elastic return member, wherein the elastic return member abuts between the pressing member and the housing assembly.

[0016] According to some optional embodiments of the present invention, the pressing member includes: a pressure plate and a pressure column, the pressure plate is arranged on the outer surface of the shell assembly, one end of the pressure column is connected to the pressure plate and the other end extends toward the touch portion, the elastic return member is a spring and is sleeved on the pressure column, and the two ends of the elastic return member are respectively in contact with the shell and the mounting plate.

[0017] According to some embodiments of the present invention, the pressing assembly further includes: a locking plate, the locking plate having a locking portion suitable for locking with the socket, the pressing member being connected to the locking plate and used to drive the locking plate to move so that the locking portion is locked or unlocked with the socket.

[0018] According to some optional embodiments of the present invention, the locking portion is formed as a first hook, a second through-hole is provided on the side wall of the shell, and at least a portion of the first hook extends out of the shell through the second through-hole to be suitable for engaging with the socket.

[0019] According to some embodiments of the present invention, the locking plate is arranged on a side of the mounting plate away from the mounting cavity, and is located between the pressure plate of the pressing member and the touch portion. A through hole is provided on the locking plate, and the pressure column of the pressing member passes through the through hole and abuts against the touch portion of the touch switch.

[0020] According to some embodiments of the present invention, the locking plate is snap-connected to the pressing member.

[0021] According to some embodiments of the present invention, one of the pressing member and the locking plate is provided with a second hook and the other is provided with a second hole, and the second hook is held in the second hole so that the pressing plate is connected to the locking plate through the second hook.

[0022] According to some optional embodiments of the present invention, the second hook is formed on the pressing member, and the pressing member is further provided with an abutting column extending toward the locking plate and extending to abut against the locking plate.

[0023] According to some embodiments of the present invention, the shell includes: a body, which extends into a ring shape; a top cover, which closes the open side of the top of the body and is snap-connected to the body; and a base, which closes the open side of the bottom of the body, and the base is provided with a third through-hole, and the pin assembly extends into the installation cavity through the third through-hole.

[0024] According to some embodiments of the present invention, the housing assembly further includes an outer cover, and the outer cover is disposed on the outside of the housing.

[0025] According to some embodiments of the present invention, the plug includes: a control board, the control board is disposed in the installation cavity, and the touch switch is electrically connected to the cable assembly through the control board.

[0026] According to some optional embodiments of the present invention, the cable assembly includes: an AC power cable, a neutral cable, a grounding cable, a control guide cable and a connection confirmation cable, and the pin assembly includes: an AC power pin, a neutral pin and a grounding pin, wherein the AC power cable is electrically connected to the AC power pin, the neutral cable is electrically connected to the neutral pin, and the grounding cable is electrically connected to the grounding pin.

[0027] According to some optional embodiments of the present invention, the plug further includes: a first pin, the first pin is arranged in the installation cavity and fixed on the shell assembly, one end of the first pin is electrically connected to the control guide cable, and the other end of the first pin extends out of the shell assembly; a second pin, the second pin is arranged in the installation cavity and fixed on the shell assembly, one end of the second pin is electrically connected to the connection confirmation cable, and the other end of the second pin extends out of the shell assembly.

[0028] According to some optional embodiments of the present invention, the outer surfaces of the first pin and the second pin are each provided with a first fixing portion, and the inner wall of the shell assembly is provided with a second fixing portion, and the first fixing portion cooperates with the second fixing portion to enable the first pin and the second pin to be detachably connected to the shell assembly respectively.

[0029] According to some optional embodiments of the present invention, the first fixing portion is a fixing boss, the second fixing portion includes two fixing ribs arranged at intervals, the two fixing ribs cooperate to define a limiting groove, and the fixing boss cooperates in the limiting groove.

[0030] According to some embodiments of the present invention, the first pin and the second pin are respectively provided on both sides of the control board in a thickness direction.

[0031] According to some embodiments of the present invention, the plug includes: a temperature sensor, which is disposed in the installation cavity, electrically connected to the control board, and is used to detect the temperature of the pin assembly.

[0032] According to some optional embodiments of the present invention, the temperature sensor is provided on a side of the control board facing the first pin.

[0033] A charging and discharging system according to an embodiment of the second aspect of the present invention includes a plug according to the first aspect of this embodiment.

[0034] According to the charging and discharging system of the present invention, a plug is provided and a sealing filler is provided on the plug. The sealing filler insulates and seals the space outside the shell assembly, thereby effectively preventing moisture or dust from entering the installation cavity, thereby ensuring the safe use of the plug.

[0035] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic diagram of a plug according to an embodiment of the present invention;

[0037] Figure 2 yes Figure 1 A partial schematic diagram of the plug shown in ;

[0038] Figure 3 yes Figure 1 Exploded view of the plug shown in ;

[0039] Figure 4 yes Figure 3 An exploded view of a portion of the plug shown in FIG.

[0040] Figure 5 yes Figure 3 An exploded view of a portion of the plug shown in FIG.

[0041] Figure 6 yes Figure 3 An exploded view of a portion of the plug is shown in FIG.

[0042] Reference numerals:

[0043] 100. Plug;

[0044] 10. Housing assembly; 11. Housing; 111. Main body; 1111. First through-hole; 1112. Second through-hole; 112. Top cover; 113. Base; 12. Mounting plate; 121. Baffle; 122. Fixing rib; 123. Fixing column; 13. Mounting cavity; 14. Cover;

[0045] 20. Pin assembly; 21. AC power pin; 22. Neutral pin; 23. Ground pin;

[0046] 30. Cable assembly; 31. AC power cord; 32. Intermediate cable; 33. Ground cable; 34. Control guide cable; 35. Connection confirmation cable;

[0047] 40. Touch switch; 41. Touch part;

[0048] 50. Sealing filler;

[0049] 60. Pressing assembly; 61. Pressing member; 611. Pressing plate; 612. Pressing column; 613. Second hook; 614. Abutting column; 62. Elastic reset member; 63. Locking plate; 631. First hook; 632. Through hole; 633. Second hook hole; 634. Positioning slot; 635. Fixing hole;

[0050] 70. Control panel;

[0051] 81. First pin; 82. Second pin; 83. Fixing boss;

[0052] 90. Temperature sensor; 91. Thermal conductive adhesive. DETAILED DESCRIPTION

[0053] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0054] Please refer to the following Figure 1-6 A plug 100 according to an embodiment of the present invention is described.

[0055] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4According to the plug 100 of an embodiment of the present invention, the plug 100 can be used in a charging gun of a household appliance, a large electrical equipment or a new energy vehicle. The plug 100 includes: a shell assembly 10, a pin assembly 20, a cable assembly 30 and a sealing filler 50.

[0056] Specifically, the housing assembly 10 defines a mounting cavity 13; the pin assembly 20 is provided on the housing assembly 10; one end of the cable assembly 30 (such as Figure 3 The front end of the cable assembly 30 shown extends into the installation cavity 13 and is connected to the pin assembly 20; the sealing filler 50 is sealed and filled in the installation cavity 13.

[0057] For example, Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the lower end of the pin assembly 20 is exposed from the shell assembly 10, the upper end of the pin assembly 20 extends into the installation cavity 13, the lower end of the pin assembly 20 is electrically connected to the electrical connection end in the socket, and the front end of the cable assembly 30 is electrically connected to the pin assembly 20 in the installation cavity 13.

[0058] The plug 100 of the present invention is provided with a sealing filler 50. The sealing filler 50 can seal the space inside the installation cavity 13, realize the insulation sealing of the space outside the shell assembly 10, thereby effectively preventing water vapor or dust in the air from entering the installation cavity 13 through the gap between the touch switch 40 and the shell assembly 10, thereby ensuring the sealing and waterproof performance of the plug 100, and further ensuring the safe use of the plug 100. At the same time, the sealing filler 50 can limit the structure inside the shell assembly 10, such as limiting the touch switch 40, thereby effectively preventing the structure inside the shell assembly 10 from moving in the installation cavity 13, and further ensuring the normal function of the plug.

[0059] According to the plug 100 of the embodiment of the present invention, a sealing filler 50 is provided, which insulates and seals the space outside the shell assembly 10, thereby effectively preventing moisture or dust from entering the installation cavity 13, thereby ensuring the safe use of the plug 100.

[0060] According to some embodiments of the present invention, referring to Figure 2 、 Figure 3 and Figure 6 The sealing filler 50 is configured to be injection molded within the mounting cavity 13. Thus, the injection molding process can complete the entire process from melting the plastic to injecting it into the mold and cooling it into shape in a short period of time, making it suitable for large-scale production. This ensures the production efficiency of the plug 100 and also facilitates installation of the sealing filler 50 without requiring consideration of the installation space.

[0061] For example, Figure 2 、 Figure 3 and Figure 6 As shown, the shell assembly 10 is provided with a plurality of flow holes for the injection molding material to flow out. After the injection molding is completed, these flow holes will cause the sealing filler 50 to automatically form a limiting portion that cooperates with the shell assembly 10, thereby ensuring the fixing strength of the sealing filler 50 and the shell assembly 10.

[0062] According to some embodiments of the present invention, referring to Figure 2 、 Figure 3 and Figure 6 The sealing filler 50 is a resin part. As a result, the cost of the resin part is relatively low. Especially when mass-produced, the cost of each part can be greatly reduced through injection molding. At the same time, since the injection molding process is efficient and can reduce the need for subsequent processing, further cost savings can be achieved.

[0063] According to some embodiments of the present invention, referring to Figure 2 、 Figure 3 and Figure 6 Plug 100 includes a touch switch 40, which is disposed in mounting cavity 13. Touch switch 40 is configured to control the disconnection of pin assembly 20 from cable assembly 30. Therefore, touch switch 40 is an electronic component primarily used to connect or disconnect a circuit by lightly touching or pressing it, thereby protecting plug 100.

[0064] According to some embodiments of the present invention, referring to Figure 2 、 Figure 3 、 Figure 5 and Figure 6 The housing assembly 10 includes a housing 11 and a mounting plate 12. The housing 11 defines a cavity; the mounting plate 12 is disposed in the cavity, and the touch switch 40 is fixed to the mounting plate 12. Thus, the housing 11 and the mounting plate 12 are provided separately, thereby facilitating assembly of the housing assembly 10.

[0065] According to some optional embodiments of the present invention, referring to Figure 2 、 Figure 3 、 Figure 5 and Figure 6 The number of the mounting plates 12 is two, and the two mounting plates 12 are arranged along the thickness direction of the mounting plates 12 (eg Figure 3The mounting plates 12 shown are arranged in the cavity at intervals (in the left and right directions), and the circumferences of the two mounting plates 12 are connected to the inner wall of the shell (11), and the mounting cavity 13 is located between the two mounting plates 12. Thus, the mounting plates 12 are arranged according to actual needs, so that the space of the mounting cavity 13 can be guaranteed, and other structures can be arranged in the space defined by the mounting plates 12 and the shell 11. At the same time, the mounting plates 12 and the shell 11 cooperate to define the mounting cavity 13, and there is no need to additionally process the mounting cavity 13 on the shell 11, so that the arrangement of the mounting cavity 13 can be facilitated. In addition, the position of the mounting cavity 13 is reasonable, so that the sealing filler 50 can be easily injected into the mounting cavity 13.

[0066] For example, Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown, a closed cavity is defined in the shell 11, and a mounting plate 12 is arranged in the cavity. The two mounting plates 12 are spaced apart in the left-right direction, and the periphery of the mounting plates 12 is connected to the inner wall of the shell 11. The right side of the left mounting plate 12 and the left side of the right mounting plate 12 and the inner wall of the shell 11 define a mounting cavity 13.

[0067] According to some embodiments of the present invention, referring to Figure 3 and Figure 5 , the mounting plate 12 is provided with a through hole, the through hole is along the thickness direction of the mounting plate 12 (such as Figure 5 The mounting plate 12 is pierced by a through hole (in the left-right direction of the mounting plate 12 shown in FIG. 1 ), and the touch portion 41 of the touch switch 40 is arranged at the through hole position so that the touch portion 41 is exposed at the through hole position. This ensures that an external structure or a user's finger can touch the touch portion 41, thereby ensuring that the touch switch 40 can function properly.

[0068] For example, Figure 3 and Figure 5 As shown, there is only one touch switch 40 , and a through hole is provided on the left mounting plate 12 , which protrudes from the mounting plate 12 in the left-right direction. The touch portion 41 is located on the left side of the touch switch 40 and is exposed after passing through the through hole.

[0069] According to some optional embodiments of the present invention, referring to Figure 2 、 Figure 3 and Figure 5The mounting plate 12 is formed with a baffle 121 extending toward the interior of the mounting cavity 13. The baffle 121 extends in an annular shape and forms a fixing groove with one side open with the mounting plate 12. The touch switch 40 is disposed in the fixing groove, and the through hole extends through the bottom wall of the fixing groove. Thus, the baffle 121 can define the installation position of the touch switch 40, thereby facilitating the arrangement of the touch switch 40. At the same time, the baffle 121 can limit the touch switch 40, thereby effectively preventing the touch switch 40 from moving within the mounting cavity 13. Furthermore, the through hole is reasonably positioned, thereby ensuring that the touch portion 41 can be exposed to the outside of the housing 11 at the position of the through hole.

[0070] For example, Figure 2 、 Figure 3 and Figure 5 As shown, a baffle 121 is formed on the right side surface of the left mounting plate 12, and the right end of the baffle 121 extends to the right. The baffle 121 extends into a ring shape on the mounting plate 12, and the baffle 121 and the mounting plate 12 form a fixing groove open on the right side. The touch switch 40 is located in the fixing groove, and the touch portion 41 on the left side of the touch switch 40 is exposed from the through hole.

[0071] According to some embodiments of the present invention, referring to Figure 3 、 Figure 5 and Figure 6 The plug 100 may include a pressing assembly 60, which includes a pressing member 61. A first through-hole 1111 is provided in the housing 11. The pressing member 61 is movably disposed through the first through-hole 1111, with at least a portion of the pressing member 61 extending outside the housing 11. The pressing member 61 is configured to contact the touch portion 41 of the touch switch 40 when pressed. Thus, a user can press the touch portion 41 using the pressing member 61, thereby preventing direct contact between the user's limbs, such as fingers, and the touch portion 41, thereby ensuring user safety. Furthermore, the touch portion 41 has a relatively sharp end, and contact between the pressing member 61 and the touch portion 41 prevents injuries to the user, thereby ensuring a better user experience. Furthermore, the provision of the first through-hole 1111 ensures that the pressing member 61 is connected to the housing 11 and can move relative to the housing 11, allowing the pressing member 61 to trigger the touch switch 40.

[0072] For example, Figure 3 、 Figure 5 and Figure 6As shown, first holes 1111 are provided on both sidewalls of the housing 11 in the left and right directions. The first holes 1111 extend through the housing 11 in the left-right direction, and two pressing members 61 are respectively inserted into the corresponding first holes 1111. When unplugging the plug 100 from the socket, the user presses the corresponding pressing members 61 with their thumb and index finger. When the thumb and index finger cooperate, the pressing member 61 on the left presses the trigger portion 41, causing the trigger switch 40 to generate a control signal, disconnecting the pin assembly 20 from the cable assembly 30, thereby preventing electric shock accidents when plugging and unplugging the plug 100.

[0073] According to some optional embodiments of the present invention, referring to Figure 3 and Figure 5 The pressing assembly 60 further includes an elastic return member 62, which abuts between the pressing member 61 and the housing assembly 10. Thus, the elastic return member 62 can reset the pressing member 61 after being pressed, so that the touch switch 40 can be normally triggered when the pressing member 61 is pressed again, thereby ensuring that the touch switch 40 can be normally triggered.

[0074] According to some optional embodiments of the present invention, referring to Figure 3 and Figure 5 The pressing member 61 includes: a pressing plate 611 and a pressing column 612. The pressing plate 611 is provided on the outer surface of the housing assembly 10. One end of the pressing column 612 is connected to the pressing plate 611 and the other end extends toward the touch portion 41. The elastic return member 62 is a spring and is sleeved on the pressing column 612. Both ends of the elastic return member 62 (such as Figure 5 The left and right ends of the elastic return member 62 shown are in contact with the housing 11 and the mounting plate 12 respectively.

[0075] Thus, the pressure plate 611 is positioned appropriately on the outer surface of the housing assembly 10, making it easy for the user to directly touch it with their fingers. At the same time, the pressure plate 611 transmits the pressing force applied to it to the touch portion 41 via the pressure post 612. This force transmission method is simple and efficient, and also ensures the safety of the user triggering the touch switch 40. Furthermore, the spring structure is simple and inexpensive, making it easy to use in large quantities.

[0076] For example, Figure 3 and Figure 5As shown, taking the pressing piece 61 on the left as an example, the pressing plate 611 is a circular plate-shaped structure, and the pressing plate 611 is located on the outer surface of the shell 11, and the left surface of the pressing plate 611 is provided with anti-slip grooves, so as to prevent the user's fingers from being unable to press stably on the pressing plate 611, and the pressure column 612 extends in the left and right directions, and the left end of the pressure column 612 is connected to the right surface of the pressing plate 611, and the right end of the pressure column 612 extends to the right, and the elastic return piece 62 is sleeved on the pressure column 612, and the left end of the elastic return piece 62 abuts against the shell 11, and the right end of the elastic return piece 62 abuts against the mounting plate 12, and the pressing piece 61 on the right and the pressing piece 61 on the left are symmetrically arranged in the left and right directions.

[0077] According to some embodiments of the present invention, referring to Figure 3 、 Figure 5 and Figure 6 The pressing assembly 60 also includes: a locking plate 63, the locking plate 63 has a locking portion suitable for locking with the socket, and the pressing member 61 is connected to the locking plate 63 and is used to drive the locking plate 63 to move so that the locking portion is locked or unlocked with the socket.

[0078] In this way, when the plug 100 is locked with the socket, the locking portion cooperates with the socket to prevent the plug 100 from being directly disconnected under the action of external force. In particular, when charging a vehicle with a charging gun, the plug 100 can only be disconnected from the socket under manual operation, thereby ensuring the stability of the connection between the plug 100 and the socket. At the same time, when the plug 100 needs to be unlocked from the socket, the pressing member 61 must be manually pressed to trigger the touch switch 40 before the plug 100 can be separated from the socket, thereby ensuring the safety of the use of the plug 100. In addition, the pressing member 61 can drive the locking plate 63 to move, eliminating the need to separately control the locking plate 63 to lock or unlock with the socket, thereby improving the convenience of using the plug 100.

[0079] According to some optional embodiments of the present invention, referring to Figure 3 and Figure 5 The locking plate 63 is provided with an annular positioning groove 634 extending along the circumference of the pressure column 612. The end of the elastic return member 62 facing the mounting plate 12 is disposed in the positioning groove 634. Thus, the positioning groove 634 provides a stable fulcrum for the elastic return member 62, ensuring that the elastic return member 62 always moves in the predetermined direction when compressed or stretched, and preventing the pressing member 61 from being unable to rebound normally due to position deviation.

[0080] For example, Figure 3 and Figure 5 As shown, taking the left locking plate 63 as an example, the right surface of the locking plate 63 is provided with an annular positioning groove 634, and the left end of the elastic reset member 62 is located in the positioning groove.

[0081] According to some optional embodiments of the present invention, referring to Figure 3、 Figure 5 and Figure 6 The locking portion is formed as a first hook 631. A second through-hole 1112 is provided on the side wall of the housing 11. At least a portion of the first hook 631 extends through the second through-hole 1112 and out of the housing 11. In other words, the first hook 631 may partially extend through the second through-hole 1112 and out of the housing 11, or the entire first hook 631 may extend through the second through-hole 1112 and out of the housing 11, suitable for engaging with the socket. As a result, the mating structure of the first hook 631 and the second through-hole 1112 is simple and convenient, thereby facilitating the locking of the plug 100 with the socket. Furthermore, the simple structure of the first hook 631 and the second through-hole 1112 facilitates processing, thereby improving the processing efficiency of the plug 100.

[0082] For example, Figure 3 、 Figure 5 and Figure 6 As shown, the locking portion is located at the lower end of the locking plate 63, and the hook portion of the first hook 631 extends toward the outside of the shell 11. A second through-hole 1112 corresponding to the first hook 631 is provided on the shell 11, and a portion of the first hook 631 passes through the second through-hole 1112 and extends out of the shell 11.

[0083] According to some embodiments of the present invention, referring to Figure 2 、 Figure 3 and Figure 5 The locking plate 63 is disposed on the side of the mounting plate 12 facing away from the mounting cavity 13 and is positioned between the pressing plate 611 of the pressing member 61 and the trigger portion 41. A through-hole 632 is provided in the locking plate 63. The pressing post 612 of the pressing member 61 passes through the through-hole 632 to abut against the trigger portion 41 of the tactile switch 40. Therefore, the locking plate 63 is positioned along the movement path of the pressing post 612. Therefore, the provision of the through-hole 632 in the locking plate 63 ensures that the pressing post 612 of the pressing member 61 can properly press the trigger portion 41.

[0084] For example, Figure 2 、 Figure 3 and Figure 5 As shown, taking the locking plate 63 on the left as an example, the locking plate 63 is located between the mounting plate 12 on the left and the housing 11 , a circular through hole 632 is provided on the locking plate 63 , and the pressure column 612 is a cylinder, which passes through the through hole 632 and abuts against the touch portion 41 .

[0085] According to some optional embodiments of the present invention, referring to Figure 3 and Figure 5 The locking plate 63 is connected to the pressing member 61 by a snap connection. Thus, the snap connection structure is simple and convenient to connect, thereby improving the assembly efficiency of the locking plate 63 and the pressing member 61. At the same time, the snap connection structure is simple and convenient to process.

[0086] According to some embodiments of the present invention, referring to Figure 3 and Figure 5 One of the pressing piece 61 and the locking plate 63 is provided with a second hook 613 and the other is provided with a second hole 633. That is to say, the pressing piece 61 can be provided with a second hook 613 and the locking plate 63 is provided with a second hole 633, or the locking plate 63 can be provided with a second hook 613 and the pressing piece 61 is provided with a second hole 633. The second hook 613 is clamped in the second hole 633, so that the pressing plate 611 is clamped and connected to the locking plate 63 through the second hook 613.

[0087] In this way, the second hook 613 and the second hole 633 can be assembled by simply pressing, which can significantly improve the assembly efficiency of the pressing member 61 and the locking plate 63, and is particularly suitable for mass production. At the same time, the matching form of the second hook 613 and the second hole 633 can disperse stress, thereby effectively preventing local fatigue fracture.

[0088] According to some embodiments of the present invention, referring to Figure 3 and Figure 5 The second hook 613 is formed on the pressing member 61, and the pressing member 61 is further provided with an abutting post 614 extending toward the locking plate 63 and extending to abut against the locking plate 63. As a result, the second hook 613 is positioned appropriately. When the pressing member 61 is assembled with the touch switch 40, the second hook 613 and the second engaging hole 633 are assembled, thereby improving the assembly efficiency of the pressing member 61 and the locking plate 63. At the same time, the pressing member 61 can apply pressure to the locking plate 63 via the abutting post 614. When pressure is applied to the pressing member 61, the locking plate 63 and the pressing member 61 can be synchronously linked.

[0089] For example, Figure 3 and Figure 5 As shown, taking the pressing member 61 on the left side as an example, the second hook 613 is formed on the pressing plate 611 of the pressing member 61, and the right end of the second hook 613 extends toward the locking plate 63. The locking plate 63 is provided with a second hook hole 633 that penetrates the locking plate 63 in the left and right directions. The pressing plate 611 of the pressing member 61 is also provided with an abutment column 614, and the left end of the abutment column 614 is connected to the right side surface of the pressing plate 611, and the right end of the abutment column 614 extends to the right and abuts against the left side surface of the locking plate 63.

[0090] When using the plug 100, the user first presses the pressure plate 611 with his finger. While connecting the pin assembly 20 to the socket, the pressure column 612 passes through the through hole 632 and abuts against the touch portion 41. The touch switch 40 is triggered to transmit the connection signal. The abutment column 614 abuts against the surface of the locking plate 63. The locking plate 63 drives the first hook 631 to retract to the inside of the shell 11. At the same time, the elastic return member 62 deforms and compresses to store energy. When the finger no longer applies external force to the pressure plate 611, the elastic return member 62 releases the elastic force, and the elastic return member 62 pushes the locking plate 63 and the pressing member 61 to return to their original position. At this time, the first hook 631 extends through the through hole to the outside of the shell 11, and the first hook 631 is engaged with the socket.

[0091] When the plug 100 needs to be separated from the socket, the user presses the pressure plate 611 with his finger, and the pressure column 612 passes through the through hole 632 and abuts against the touch portion 41. The touch switch 40 is triggered to transmit a disconnect signal, and the abutting column 614 abuts against the surface of the locking plate 63. The locking plate 63 drives the first hook 631 to retract to the inside of the shell 11. At the same time, the elastic return member 62 deforms and compresses to store energy. At this time, the pin assembly 20 is separated from the socket. Afterwards, when the finger no longer applies external force to the pressure plate 611, the elastic return member 62 releases the elastic force, and the elastic return member 62 pushes the locking plate 63 and the pressing member 61 to return to their original position. At this time, the first hook 631 extends through the through hole to the outside of the shell 11, and the plug 100 waits for the next connection with the socket.

[0092] Furthermore, if Figure 3 and Figure 5 As shown, there are two second hooks 613, and the two second hooks 613 are arranged at intervals along the front-to-back direction. There are four abutment columns 614, and two abutment columns 614 are arranged on the upper side of the pressure column 612, and two abutment columns 614 are arranged on the lower side of the pressure column 612. The four abutment columns 614 and the two second hooks 613 are arranged at intervals along the circumference of the pressure column 612.

[0093] Furthermore, if Figure 3 and Figure 5 As shown, a fixing column 123 is provided on one side surface of the mounting plate 12 facing the locking plate 63 , and a fixing hole 635 corresponding to the fixing column 123 is provided on the locking plate 63 . The fixing column 123 extends into the fixing hole 635 to fix the locking plate 63 to the mounting plate 12 .

[0094] According to some embodiments of the present invention, referring to Figure 2 、 Figure 3 and Figure 6The housing 11 includes a body 111, a top cover 112, and a base 113. Specifically, the body 111 extends into a ring shape; the top cover 112 closes the open top side of the body 111 and is snap-connected to the body 111; the base 113 closes the open bottom side of the body 111 and defines a third through-hole, through which the pin assembly 20 extends into the mounting cavity 13.

[0095] In this way, the main body 111, the top cover 112 and the base 113 cooperate to form the shell 11, which can facilitate the assembly of the shell 11, and can also facilitate the assembly of structures such as the touch switch 40 in the installation cavity 13 of the shell 11. At the same time, it can facilitate the injection molding of the sealing filler 50 in the installation cavity 13, thereby ensuring that the sealing filler 50 can insulate and seal the installation cavity 13. Furthermore, a third through hole is provided on the base 113, which can facilitate the fixation of the pin assembly 20 to the base 113, and further facilitate the connection of the pin assembly 20 with the cable assembly 30 in the installation cavity 13.

[0096] For example, Figure 2 、 Figure 3 and Figure 6 As shown, the main body 111 is an octagonal ring structure that is open at the top and bottom. The top cover 112 is provided on the upper side of the main body 111 and closes the open opening on the lower side of the main body 111. The lower side of the top cover 112 is provided with a hook extending toward the base 113. The top cover 112 is connected to the main body 111 by snapping. The base 113 is provided on the lower side of the main body 111 and closes the open opening on the lower side of the main body 111. A third through-hole is provided on the base 113 that passes through the main body 111 in the up and down direction. The upper end of the pin assembly 20 passes through the third through-hole and extends into the mounting cavity 13.

[0097] According to some embodiments of the present invention, referring to Figure 1 and Figure 3 The housing assembly 10 further includes an outer cover 14, which is disposed on the outside of the housing 11. Thus, the outer cover 14 can protect the housing 11 from contact with the outside, thereby preventing moisture or dust from entering the mounting cavity 13, thereby ensuring the safety of the plug 100. At the same time, the outer cover 14 can also enhance the aesthetics of the plug 100.

[0098] According to some embodiments of the present invention, referring to Figure 1 、 Figure 3 and Figure 4The plug 100 includes a control board 70, which is disposed within the mounting cavity 13. The touch switch 40 is electrically connected to the cable assembly 30 via the control board 70. The control board 70 can transmit information from the touch switch 40 to the vehicle computer, thereby completing the connection or disconnection between the cable assembly 30 and the pin assembly 20, thereby ensuring the safety of plugging and unplugging the plug 100. Furthermore, the control board 70 is positioned appropriately to effectively prevent moisture and dust in the air from coming into contact with the control board 70, thereby ensuring that the plug 100 can be used safely for a long period of time.

[0099] For example, Figure 1 、 Figure 3 and Figure 4 As shown, the control board 70 is arranged in the installation cavity 13, and the control board 70 is fixed to the installation board 12 on the left side by screws. The touch switch 40 is a three-pin type, and a pin is provided on the right side of the touch switch 40. The touch switch 40 is plug-connected to the hole on the control board 70 through the pin, thereby realizing the electrical connection between the touch switch 40 and the control board 70.

[0100] According to some embodiments of the present invention, referring to Figure 1 、 Figure 2 and Figure 4 The cable assembly 30 includes an AC power cord 31, a neutral line cord 32, a grounding cable 33, a control guide cable 34, and a connection confirmation cable 35. The pin assembly 20 includes an AC power pin 21, a neutral line cord 22, and a grounding pin 23. The AC power cord 31 is electrically connected to the AC power pin 21, the neutral line cord 32 is electrically connected to the neutral line cord 22, and the grounding cable 33 is electrically connected to the grounding pin 23. Thus, the pins in the pin assembly 20 connect to the corresponding cables in the cable assembly 30, thereby achieving electrical connection between the pin assembly 20 and the cable assembly 30.

[0101] For example, Figure 1 、 Figure 2 and Figure 4 As shown, the ground pin 23 is provided in front of the AC power pin 21 and the neutral pin 22. The AC power pin 21 and the neutral pin 22 are arranged symmetrically in the left-right direction. The upper ends of the AC power pin 21, the neutral pin 22 and the ground pin 23 are all provided with reinforcement structures, thereby ensuring the durability requirements of the plug 100 when plugging and unplugging.

[0102] According to some embodiments of the present invention, referring to Figure 1 、 Figure 2 and Figure 4 The plug 100 further includes: a first pin 81 and a second pin 82. The first pin 81 is disposed in the mounting cavity 13 and fixed to the housing assembly 10. One end of the first pin 81 (e.g. Figure 4The upper end of the first pin 81 shown in FIG. 1 is electrically connected to the control guide cable 34, and the other end of the first pin 81 (as shown in FIG. Figure 4 The lower end of the first pin 81 shown in FIG) extends out of the housing assembly 10; the second pin 82 is disposed in the mounting cavity 13 and fixed to the housing assembly 10, and one end of the second pin 82 (as shown Figure 4 The upper end of the second pin 82 shown in FIG. 1 is electrically connected to the connection confirmation cable 35, and the other end of the second pin 82 (as shown in FIG. Figure 4 The lower end of the second pin 82 is shown extending out of the housing assembly 10.

[0103] In this way, the first pin 81 can detect whether the plug 100 is inserted into the device, for example, whether the charging gun is inserted into the charging port of an electric vehicle, and the second pin 82 can detect whether the plug 100 is fully inserted into the socket. At the same time, the second pin 82 and the first pin 81 can identify the resistance of the counterpart, and determine whether it is in the charging state or the discharging state based on the identified resistance.

[0104] For example, Figure 1 、 Figure 2 and Figure 4 As shown, the first pin 81 and the second pin 82 are both hollow cylindrical structures extending vertically in the up-down direction. The first pin 81 and the second pin 82 are both disposed within the mounting cavity 13. The upper end of the first pin 81 is connected to the control guide cable 34, and the lower end of the first pin 81 extends through the base 113 to the outside of the housing assembly 10. The upper end of the second pin 82 is connected to the connection confirmation cable 35, and the lower end of the second pin 82 extends through the base 113 to the outside of the housing assembly 10. Preferably, the first pin 81 is a control guide pin, thereby enabling the charge-discharge system 100 to identify whether charging or discharging is in progress, and the second pin 82 is a connection confirmation pin, thereby enabling the charge-discharge system 100 to identify whether the plug 100 is connected to the socket.

[0105] According to some embodiments of the present invention, referring to Figure 1 、 Figure 2 and Figure 4 The outer surfaces of the first pin 81 and the second pin 82 are both provided with a first fixing portion, and the inner wall of the shell assembly 10 is provided with a second fixing portion. The first fixing portion cooperates with the second fixing portion so that the first pin 81 and the second pin 82 are respectively detachably connected to the shell assembly 10.

[0106] In this way, the first fixing part is reasonably set in a position, which facilitates the cooperation between the first fixing part and the second fixing part. At the same time, the connection form between the first fixing part and the second fixing part is simple, which facilitates the assembly of the first pin 81 and the second pin 82 with the shell assembly 10.

[0107] According to some embodiments of the present invention, referring to Figure 1 、 Figure 2 and Figure 4 The first fixing portion is a fixing boss 83, and the second fixing portion includes two spaced fixing ribs 122. The two fixing ribs 122 cooperate to define a retaining groove, within which the fixing boss 83 fits. As a result, the fixing boss 83 has a simple structure, and at least portions of both side surfaces of the fixing boss 83 engage with the walls of the retaining groove, thereby facilitating installation and removal of the first pin 81 and the second pin 82 from the housing assembly 10.

[0108] For example, Figure 1 、 Figure 2 and Figure 4 As shown, on the outer surface of the first pin 81, the first fixing portion protrudes outward along the radial direction of the first pin 81 and extends into a circular ring shape, and on the outer surface of the second pin 82, the first fixing portion protrudes outward along the radial direction of the second pin 82 and extends into a circular ring shape. The side surface of the right mounting plate 12 facing the mounting cavity 13 is provided with two fixing ribs 122 arranged axially at intervals along the first pin 81, and the side surface of the left mounting plate 12 facing the mounting cavity 13 is provided with two fixing ribs 122 arranged axially at intervals along the second pin 82. The first fixing portion of the first pin 81 is clamped in the limiting groove on the right, and the first fixing portion of the second pin 82 is clamped in the limiting groove on the left.

[0109] According to some embodiments of the present invention, referring to Figure 1 、 Figure 2 and Figure 4 The first pin 81 and the second pin 82 are respectively provided in the thickness direction of the control board 70 (eg Figure 2 on both sides of the control panel (left and right directions as shown).

[0110] According to some embodiments of the present invention, referring to Figure 1 、 Figure 2 and Figure 4 Plug 100 includes a temperature sensor 90, which is disposed within mounting cavity 13 and electrically connected to control board 70. Temperature sensor 90 is configured to detect the temperature of pin assembly 20. Thus, temperature sensor 90 can detect the temperature of pin assembly 20, thereby effectively preventing damage to plug 100 caused by excessive temperature of pin assembly 20, thereby ensuring the safety of plug 100.

[0111] According to some embodiments of the present invention, referring to Figure 1 、 Figure 2 and Figure 4 The temperature sensor 90 is disposed on a side of the control board 70 facing the first pin 81 .

[0112] Furthermore, if Figure 1 、 Figure 2 and Figure 4As shown, the plug 100 further includes a thermally conductive adhesive 91, which is applied between the temperature sensor 90 and the pin assembly 20. Because the sealing filler 50 is made of a resin, which has a low thermal conductivity and can affect the accuracy of the data detected by the temperature sensor 90 on the pin assembly 20, applying the thermally conductive adhesive 91 ensures that the temperature sensor 90 can accurately detect the temperature of the pin assembly 20.

[0113] According to the second aspect of the present invention, the charge and discharge system Figure 1 and Figure 2 , including the plug 100 according to the first aspect of this embodiment.

[0114] According to the charging and discharging system of the present invention, a plug 100 is provided, and a sealing filler 50 is provided on the plug 100. The sealing filler 50 insulates and seals the space outside the shell assembly 10, thereby effectively preventing moisture or dust from entering the installation cavity 13, thereby ensuring the safe use of the plug 100.

[0115] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0116] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0117] In the present invention, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0118] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0119] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A plug (100), characterized in that: include: A housing assembly (10), wherein a mounting cavity (13) is defined within the housing assembly (10); A pin assembly (20), the pin assembly (20) being arranged on the housing assembly (10); A cable assembly (30), one end of the cable assembly (30) extends into the installation cavity (13) and is connected to the pin assembly (20); A sealing filler (50), wherein the sealing filler (50) is sealed and filled in the installation cavity (13).

2. The plug (100) according to claim 1, characterized in that The sealing filler (50) is configured to be injection-molded in the installation cavity (13).

3. The plug (100) according to claim 1, characterized in that The sealing filling member (50) is a resin member.

4. The plug (100) according to claim 1, characterized in that include: A touch switch (40) is provided in the installation cavity (13), and the touch switch (40) is configured to control the disconnection of the pin assembly (20) and the cable assembly (30).

5. The plug (100) according to claim 4, characterized in that The housing assembly (10) comprises: a housing (11), wherein a cavity is defined within the housing (11); A mounting plate (12) is provided in the cavity, and the touch switch (40) is fixed to the mounting plate (12).

6. The plug (100) according to claim 5, characterized in that There are two mounting plates (12), and the two mounting plates (12) are arranged in the cavity at intervals along the thickness direction of the mounting plates (12). The peripheries of the two mounting plates (12) are connected to the inner wall of the shell (11), and the mounting cavity (13) is located between the two mounting plates (12).

7. The plug (100) according to claim 5, characterized in that The mounting plate (12) is provided with a through hole, the through hole penetrating the mounting plate (12) along the thickness direction of the mounting plate (12), and the touch portion (41) of the touch switch (40) is arranged at the position of the through hole so that the touch portion (41) is exposed at the position of the through hole.

8. The plug (100) according to claim 7, characterized in that A baffle (121) extending toward the interior of the mounting cavity (13) is formed on the mounting plate (12), and the baffle (121) extends into a ring shape. The baffle (121) and the mounting plate (12) form a fixing groove with one side open. The touch switch (40) is arranged in the fixing groove, and the through hole passes through the bottom wall of the fixing groove.

9. The plug (100) according to claim 7, characterized in that The invention comprises: a pressing assembly (60), wherein the pressing assembly (60) comprises a pressing member (61), a first through-hole (1111) is provided on the housing (11), the pressing member (61) is movably inserted into the first through-hole (1111), and at least a portion of the pressing member (61) extends out of the housing (11), and the pressing member (61) is configured to touch the touch portion (41) of the touch switch (40) when pressed.

10. The plug (100) according to claim 9, characterized in that The pressing component (60) further includes an elastic reset member (62), wherein the elastic reset member (62) abuts between the pressing member (61) and the housing component (10).

11. The plug (100) according to claim 10, characterized in that The pressing member (61) includes a pressing plate (611) and a pressing column (612), wherein the pressing plate (611) is provided on the outer surface of the housing assembly (10), and one end of the pressing column (612) is connected to the pressing plate (611) and the other end extends toward the touch portion (41). The elastic reset member (62) is a spring and is sleeved on the pressure column (612), and two ends of the elastic reset member (62) are respectively in contact with the housing (11) and the mounting plate (12).

12. The plug (100) according to claim 11, characterized in that The pressing assembly (60) further includes a locking plate (63), wherein the locking plate (63) has a locking portion adapted to be locked with the socket, and the pressing member (61) is connected to the locking plate (63) and is used to drive the locking plate (63) to move so as to lock or unlock the locking portion with the socket.

13. The plug (100) according to claim 12, characterized in that The locking portion is formed as a first hook (631), a second through hole (1112) is provided on the side wall of the shell (11), and at least a portion of the first hook (631) passes through the second through hole (1112) and extends out of the shell (11) to be suitable for being engaged with the socket.

14. The plug (100) according to claim 12, characterized in that The locking plate (63) is arranged on a side of the mounting plate (12) away from the mounting cavity (13) and is located between the pressing plate (611) of the pressing member (61) and the touch portion (41). A through hole (632) is provided on the locking plate (63), and the pressure column (612) of the pressing member (61) passes through the through hole (632) and abuts against the touch portion (41) of the touch switch (40).

15. The plug (100) according to claim 12, characterized in that The locking plate (63) is connected to the pressing member (61) by snapping.

16. The plug (100) according to claim 12, characterized in that One of the pressing member (61) and the locking plate (63) is provided with a second hook (613) and the other is provided with a second clamping hole (633), and the second hook (613) is clamped in the second clamping hole (633), so that the pressing plate (611) is clamped and connected to the locking plate (63) through the second hook (613).

17. The plug (100) according to claim 16, characterized in that The second hook (613) is formed on the pressing member (61), and the pressing member (61) is further provided with an abutting column (614) extending toward the locking plate (63) and extending to abut against the locking plate (63).

18. The plug (100) according to claim 5, characterized in that The housing (11) comprises: A body (111), wherein the body (111) extends into a ring shape; A top cover (112), the top cover (112) closes the open side of the top of the body (111) and is snap-connected to the body (111); A base (113) is provided, wherein the base (113) closes the open side of the bottom of the body (111), and the base (113) is provided with a third through-hole, and the pin assembly (20) extends into the installation cavity (13) through the third through-hole.

19. The plug (100) according to claim 5, characterized in that The housing assembly (10) further comprises an outer cover (14), wherein the outer cover (14) is arranged on the outside of the housing (11).

20. The plug (100) according to claim 4, characterized in that include: A control board (70) is provided in the installation cavity (13), and the touch switch (40) is electrically connected to the cable assembly (30) through the control board (70).

21. The plug (100) according to claim 20, characterized in that The cable assembly (30) includes: an AC power cable (31), a neutral cable (32), a grounding cable (33), a control guide cable (34) and a connection confirmation cable (35); the pin assembly (20) includes: an AC power pin (21), a neutral pin (22) and a grounding pin (23); The AC power cable (31) is electrically connected to the AC power pin (21), the neutral cable (32) is electrically connected to the neutral pin (22), and the ground cable (33) is electrically connected to the ground pin (23).

22. The plug (100) according to claim 21, characterized in that The plug (100) further comprises: a first pin (81), the first pin (81) being disposed in the mounting cavity (13) and fixed to the housing assembly (10), one end of the first pin (81) being electrically connected to the control guide cable (34), and the other end of the first pin (81) extending out of the housing assembly (10); A second pin (82), the second pin (82) is disposed in the mounting cavity (13) and fixed to the housing assembly (10), one end of the second pin (82) is electrically connected to the connection confirmation cable (35), and the other end of the second pin (82) extends out of the housing assembly (10).

23. The plug (100) according to claim 22, characterized in that The outer surfaces of the first pin (81) and the second pin (82) are both provided with a first fixing portion, and the inner wall of the housing assembly (10) is provided with a second fixing portion, and the first fixing portion cooperates with the second fixing portion so that the first pin (81) and the second pin (82) are respectively detachably connected to the housing assembly (10).

24. The plug (100) according to claim 23, characterized in that The first fixing portion is a fixing boss (83), and the second fixing portion includes two fixing ribs (122) arranged at intervals, the two fixing ribs (122) cooperate to define a limiting groove, and the fixing boss (83) cooperates in the limiting groove.

25. The plug (100) according to claim 22, characterized in that The first pin (81) and the second pin (82) are respectively arranged on both sides of the control board (70) in the thickness direction.

26. The plug (100) according to claim 22, characterized in that include: A temperature sensor (90) is provided in the installation cavity (13), the temperature sensor (90) is electrically connected to the control board (70), and the temperature sensor (90) is used to detect the temperature of the pin assembly (20).

27. The plug (100) according to claim 26, characterized in that The temperature sensor (90) is provided on a side of the control board (70) facing the first pin (81).

28. A charging and discharging system, characterized in that: Comprising a plug (100) according to any one of claims 1-27.

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