Charging gun

Abstract

The utility model relates to the technical field of charging guns, and discloses a charging gun which comprises a gun head shell, a gun body shell, a terminal fixing frame and a terminal assembly, the gun head shell is provided with a charging port, a gun head connecting port and a gun head containing cavity, and the charging port and the gun head connecting port are located at the two ends of the gun head shell respectively. The gun head containing cavity is communicated with the charging port and the gun head connecting port, the terminal assembly and the terminal fixing frame are located in the gun head containing cavity, the terminal assembly is partially exposed through the charging port, the terminal assembly is connected to the terminal fixing frame, and the terminal fixing frame is detachably connected with the gun head shell. The end, facing the gun body shell, of the gun head shell is detachably connected with the gun body shell and communicates with the gun body shell through the gun head connecting opening. The charging gun provided by the utility model can be disassembled and is convenient to maintain, and the maintenance operation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging guns, in particular to a charging gun. Background Art

[0002] The internal structure of existing charging guns on the market uses the potting glue process. Potting glue is a sealing material used for potting electronic components and fixing circuit boards, etc. It has the advantages of being waterproof and vibration-resistant. Among them, epoxy resin potting glue will be affected by environmental factors such as temperature and humidity, causing fluctuations in its curing speed and strength. It is easy to fall off the shell after being subjected to hot and cold shocks, resulting in failure of the internal waterproofing of the product. Silicone potting glue has strong anti-aging ability, resistance to hot and cold shocks, pressure resistance and use environment, which fully cover the use conditions of the charging gun, but it cannot be disassembled for repair. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. The utility model provides a charging gun that can be disassembled for easy maintenance, thereby improving the convenience of maintenance operations.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a charging gun, comprising a gun head shell, a gun body shell, a terminal fixing frame and a terminal assembly, the gun head shell is provided with a charging port, a gun head connecting port and a gun head accommodating cavity, the charging port and the gun head connecting port are respectively located at the two ends of the gun head shell, the gun head accommodating cavity is respectively communicated with the charging port and the gun head connecting port, the terminal assembly and the terminal fixing frame are located in the gun head accommodating cavity, the terminal assembly is partially exposed through the charging port, the terminal assembly is connected to the terminal fixing frame, the terminal fixing frame is detachably connected to the gun head shell, the end of the gun head shell facing the gun body shell is detachably connected to the gun body shell, and is communicated with the gun body shell through the gun head connecting port.

[0005] As a preferred solution, the gun head housing is provided with a first card interface, and the terminal fixing frame includes a fixing frame body and a first clip located in the gun head accommodating cavity, one end of the first clip is connected to the fixing frame body, and the other end of the first clip is clipped to the first card interface.

[0006] As a preferred embodiment, the gun head shell is provided with a gun head limiting surface at one end facing the gun body shell, and the terminal fixing frame also includes a second buckle, the second buckle includes a connecting rod and a hook body extending radially, one end of the connecting rod is connected to the fixing frame main body, the other end of the connecting rod extends toward the gun head connecting port and is connected to the hook body, and the end of the hook body facing away from the gun body shell is provided with a buckle limiting surface, and the buckle limiting surface abuts against the gun head limiting surface.

[0007] As a preferred embodiment, the terminal assembly includes a first terminal, and the terminal fixing frame includes a first fixing column located in the gun head accommodating cavity, one end of the first fixing column is connected to the fixing frame body, and the other end extends toward the charging port, and the first fixing column is provided with a first fixing through hole, and one end of the first terminal is inserted into the first fixing through hole and clamped with the first fixing column.

[0008] As a preferred embodiment, a limit groove is provided on the outer peripheral surface of the first terminal, and a limit block is provided on the first fixed column. The limit block protrudes radially toward the axial direction in the first fixed through hole, and the limit block is clamped in the limit groove. The first fixed column is provided with a limit assembly port connected to the first fixed through hole, and the limit assembly port passes through the peripheral side wall of the first fixed column along the axial direction.

[0009] As a preferred embodiment, the terminal assembly includes a second terminal, the terminal fixing frame includes a second fixing column located in the gun head accommodating cavity, the diameter of the second fixing column is smaller than the diameter of the second terminal, the second terminal abuts against the opposite surface of the second fixing column, the end surface of the second terminal facing the second fixing column is connected with a guide strip, the outer peripheral wall of the second fixing column protrudes outward to form a guide groove extending axially, the second fixing column is provided with a second fixing through hole connected to the guide groove, and the guide strip extends into the second fixing through hole and is connected to the guide groove.

[0010] As a preferred embodiment, the gun head shell is inserted into the outer circumference of the gun body shell and is sleeved with a first sealing ring, the inner circumference of the first sealing ring is in contact with the outer circumference of the gun head shell, and the outer circumference of the first sealing ring is in contact with the inner circumference of the gun body shell.

[0011] As a preferred embodiment, it also includes a charging cable and a second sealing ring, the second sealing ring is clamped on the inner wall of the gun body shell, the outer circumference of the second sealing ring is in contact with the inner wall of the gun body shell, the charging cable extends into the gun body shell through the second sealing ring to be electrically connected to the terminal assembly, and the inner side surface of the second sealing ring is in contact with the outer circumference of the charging cable.

[0012] As a preferred embodiment, the gun body shell is provided with an installation cabin and a control port, the installation cabin is connected to the interior of the gun body shell through the control port, the charging gun also includes a switch sealing ring and a switch control component, the switch sealing ring is sealed and connected to the control port, the switch control component includes a switch button and a switch cable, the switch button is fixed in the installation cavity, the switch cable is electrically connected to the switch button, and the switch cable extends into the gun body shell through the switch sealing ring and is electrically connected to the terminal assembly.

[0013] As a preferred solution, the charging gun further includes a key pressure plate and a sealing sticker, the key pressure plate is connected to the installation compartment cover to form a connecting gap, and the sealing sticker at least covers the surface of the connecting gap.

[0014] Compared with the prior art, the charging gun of the utility model embodiment has the following beneficial effects: the terminal assembly is partially exposed through the charging port for electrical connection with the charging device to achieve charging. The terminal assembly and the terminal fixing frame are respectively located in the gun head accommodating cavity, and the gun head shell protects the terminal assembly. The terminal assembly is positioned in the gun head shell through the terminal fixing frame, thereby improving the installation stability of the terminal assembly and the gun head shell. The terminal fixing frame is detachably connected to the gun head shell, so that the terminal fixing frame and the gun head shell can be assembled and disassembled, which is convenient for repairing the parts in the gun head shell. The gun head shell and the gun body shell are detachably connected, so that the terminal fixing frame and the gun head shell can be assembled and disassembled, which is convenient for repairing the parts in the gun head shell and the gun body shell after disassembly, thereby improving the convenience of maintenance operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0016] Figure 2 It is a structural schematic diagram of a gun head housing according to an embodiment of the utility model.

[0017] Figure 3 It is a structural schematic diagram of a terminal fixing frame according to an embodiment of the utility model.

[0018] Figure 4 It is a schematic diagram of the assembly structure of the gun head housing and the terminal fixing frame according to an embodiment of the utility model.

[0019] Figure 5 It is a schematic diagram of the assembly structure of the terminal assembly and the terminal fixing frame of the embodiment of the utility model.

[0020] Figure 6 It is a structural schematic diagram of a gun body shell of an embodiment of the utility model.

[0021] Figure 7 It is an assembly cross-sectional view of a gun body shell and a gun tail cover according to an embodiment of the utility model.

[0022] Figure 8 It is a schematic diagram of the internal structure of the installation cabin of the embodiment of the utility model.

[0023] In the figure:

[0024] 10. Gun head housing; 11. Charging port; 12. Gun head connection port; 13. Gun head accommodating cavity; 14. First card interface; 15. Gun head limiting surface; 16. First sealing ring; 17. First limiting sealing groove;

[0025] 20. Gun body shell; 21. Installation compartment; 22. Control port; 23. Socket; 24. Limit strip; 25. Second limit sealing groove;

[0026] 30. Terminal fixing frame; 31. Fixing frame body; 32. First buckle; 33. Second buckle; 34. Connecting rod; 35. Hook body; 36. Buckle limiting surface; 37. First fixing column; 38. First fixing through hole; 39. Limiting block; 40. Limiting assembly opening; 41. Second fixing column; 42. Guide groove; 43. Second fixing through hole; 44. Guide assembly opening;

[0027] 51. Charging cable; 52. Second sealing ring; 53. Switch sealing ring; 54. Switch control component; 55. Switch button; 56. Switch cable; 57. Button pressure plate; 58. Sealing sticker; 59. Connecting gap.

[0028] 60. Gun tail cover; 61. Gun tail cover 1; 62. Gun tail cover 2; 63. Connecting slot; 64. Insert block;

[0029] 70. Terminal assembly; 71. First terminal; 72. Limiting groove; 73. Second terminal; 74. Guide strip. DETAILED DESCRIPTION

[0030] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present invention, it should be understood that the terms "connected", "connected", "fixed" and the like used in the present invention should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or a welding connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figures 1 to 8 As shown, a charging gun of a preferred embodiment of the utility model embodiment comprises a gun head shell 10, a gun body shell 20, a terminal fixing frame 30 and a terminal assembly 70. The gun head shell 10 is provided with a charging port 11, a gun head connecting port 12 and a gun head accommodating cavity 13. The charging port 11 and the gun head connecting port 12 are respectively located at two ends of the gun head shell 10. The gun head accommodating cavity 13 is respectively communicated with the charging port 11 and the gun head connecting port 12. The terminal assembly 70 and the terminal fixing frame 30 are located in the gun head accommodating cavity 13. The terminal assembly 70 is partially exposed through the charging port 11. The terminal assembly 70 is connected to the terminal fixing frame 30. The terminal fixing frame 30 is detachably connected to the gun head shell 10. One end of the gun head shell 10 facing the gun body shell 20 is detachably connected to the gun body shell 20 and is communicated with the gun body shell 20 through the gun head connecting port 12.

[0034] In the charging gun of the present invention, the terminal assembly 70 is partially exposed through the charging port 11 for electrical connection with the charging device to realize charging. The terminal assembly 70 and the terminal fixing frame 30 are respectively located in the gun head accommodating cavity 13, and the gun head shell 10 protects the terminal assembly 70. The terminal assembly 70 is positioned in the gun head shell 10 through the terminal fixing frame 30, thereby improving the installation stability of the terminal assembly 70 and the gun head shell 10. The terminal fixing frame 30 is detachably connected to the gun head shell 10, so that the terminal fixing frame 30 and the gun head shell 10 can be assembled and disassembled, which is convenient for repairing the parts in the gun head shell 10. The gun head shell 10 is detachably connected to the gun body shell 20, so that the terminal fixing frame 30 and the gun head shell 10 can be assembled and disassembled, which is convenient for repairing the parts in the gun head shell 10 and the gun body shell 20 after disassembly, thereby improving the convenience of maintenance operation.

[0035] As one embodiment, in the prior art, the gun head housing 10 is a split structure consisting of an upper housing and a lower housing connected together. Figure 2 As shown, the gun head housing 10 is an integrally formed structure, which reduces one mold compared to a split structure, thereby reducing mold costs, and at the same time, avoiding installation gaps and improving sealing.

[0036] As one embodiment, the gun head housing 10 is threadedly connected to the gun body housing 20 .

[0037] As one embodiment, the gun head housing 10 is snap-connected with the gun body housing 20 .

[0038] Further, such as Figures 2 to 4As shown, the gun head housing 10 is provided with a first card interface 14, and the terminal fixing frame 30 includes a fixing frame body 31 and a first buckle 32 located in the gun head accommodating cavity 13, one end of the first buckle 32 is connected to the fixing frame body 31, and the other end of the first buckle 32 is clamped to the first card interface 14. The first buckle 32 is installed in the gun head accommodating cavity 13 through the fixing frame body 31 to achieve the initial fixation of the first buckle 32 in the installation position in the gun head accommodating cavity 13. The first buckle 32 is connected to the first card interface 14 to achieve a detachable connection between the terminal fixing frame 30 and the gun head housing 10, and at the same time, the positioning of the terminal fixing frame 30 is achieved, the terminal fixing frame 30 is prevented from moving, and the assembly reliability of the terminal assembly 70 is improved.

[0039] As one embodiment, the outer peripheral shape of the fixing frame body 31 is configured to correspond to the inner wall shape of the accommodating cavity, so as to radially limit the fixing frame body 31 , reduce the movement of the fixing frame body 31 in the accommodating cavity, and improve the assembly stability of the fixing frame body 31 .

[0040] As one embodiment, the first buckle 32 is connected to the edge of the fixing frame body 31 to bring the first buckle 32 closer to the first card interface 14 , reduce the movement of the first buckle 32 , and improve the connection reliability between the first buckle 32 and the first card interface 14 .

[0041] Further, such as Figures 2 to 3 As shown, the end of the gun head housing 10 facing the gun body housing 20 is provided with a gun head limiting surface 15, and the terminal fixing frame 30 also includes a second buckle 33, the second buckle 33 includes a connecting rod 34 and a hook body 35 extending in the radial direction, one end of the connecting rod 34 is connected to the fixing frame body 31, and the other end of the connecting rod 34 extends toward the gun head connecting port 12 and is connected to the hook body 35, and the end of the hook body 35 away from the gun body housing 20 is provided with a buckle limiting surface 36, and the buckle limiting surface 36 abuts against the gun head limiting surface 15. The hook body 35 extends to the end of the gun head housing 10 facing the gun body housing 20 through the connecting rod 34, and the buckle limiting surface 36 abuts against the gun head limiting surface 15, so as to realize further limiting of the terminal fixing frame 30 in the gun head accommodating cavity 13, prevent the terminal fixing frame 30 from moving toward the charging port 11, and improve the assembly position stability of the terminal fixing frame 30 and the terminal assembly 70.

[0042] As one embodiment, Figure 3 As shown, the first buckle 32 and the second buckle 33 are arranged at intervals along the circumferential direction, thereby improving the reliability of the connection position between the terminal fixing frame 30 and the gun head housing 10 .

[0043] As one embodiment, Figures 2 to 4As shown, a plurality of first clips 32 and a plurality of second clips 33 are respectively provided, and the first clips 32 and the second clips 33 are spaced apart along the circumference of the gun head shell 10. The gun head shell 10 is provided with a first card interface 14 which is arranged corresponding to the number and position of the first clips 32, thereby improving the reliability of the connection position between the terminal fixing frame 30 and the gun head shell 10, and improving the reliability of the connection between the terminal fixing frame 30 and the gun head shell 10.

[0044] Further, such as Figure 5 As shown, the terminal assembly 70 includes a first terminal 71, and the terminal fixing frame 30 includes a first fixing column 37 located in the gun head accommodating cavity 13. One end of the first fixing column 37 is connected to the fixing frame body 31, and the other end extends toward the charging port 11. The first fixing column 37 is provided with a first fixing through hole 38. One end of the first terminal 71 is inserted into the first fixing through hole 38 and is engaged with the first fixing column 37. The first fixing column 37 is connected to the fixing frame body 31, and the fixing frame body 31 is connected to the gun head housing 10 through the first buckle 32. One end of the first terminal 71 extends into the first fixing through hole 38 and is engaged with the first fixing column 37, thereby improving the convenience of disassembly and assembly of the first terminal 71 and the terminal fixing frame 30.

[0045] As one embodiment, the first terminal 71 is a ground terminal.

[0046] As one embodiment, Figure 1 As shown, the first fixing through hole 38 is communicated with the gun head connecting port 12 so that the wire of the grounding terminal can be accommodated in the gun body shell 20 .

[0047] Further, such as Figure 3 and Figure 5 As shown, the outer peripheral surface of the first terminal 71 is provided with a limiting groove 72, the first fixing column 37 is provided with a limiting block 39, the limiting block 39 radially protrudes in the first fixing through hole 38 toward the axial direction, the limiting block 39 is clamped in the limiting groove 72, the first fixing column 37 is provided with a limiting assembly opening 40 connected to the first fixing through hole 38, and the limiting assembly opening 40 penetrates the peripheral side wall of the first fixing column 37 along the axial direction. The first terminal 71 is pushed into the first fixing through hole 38 from the limiting assembly opening 40, and is clamped in the limiting groove 72 by the limiting block 39, so as to limit the installation position of the first terminal 71 in the first fixing column 37.

[0048] As one embodiment, Figure 3 As shown, the limiting block 39 is arranged around the inner wall of the first fixing through hole 38 .

[0049] As one embodiment, Figure 3 As shown, the limiting block 39 is located at one end of the first fixing column 37 facing the charging port 11 , which makes it easier to assemble the limiting block 39 and the limiting groove 72 .

[0050] Further, such as Figure 3 and Figure 5 As shown, the terminal assembly 70 includes a second terminal 73, the terminal fixing frame 30 includes a second fixing column 41 located in the gun head accommodating cavity 13, the diameter of the second fixing column 41 is smaller than the diameter of the second terminal 73, the second terminal 73 abuts against the opposite surface of the second fixing column 41, the second terminal 73 is connected to the end surface of the second fixing column 41 facing the second fixing column 41 with a guide clamping strip 74, the outer peripheral wall of the second fixing column 41 protrudes outward to form a guide groove 42 extending along the axial direction, the second fixing column 41 is provided with a second fixing through hole 43 connected to the guide groove 42, and the guide clamping strip 74 extends into the second fixing through hole 43 and is connected to the guide groove 42 to achieve the guided assembly of the second terminal 73. At the same time, the second terminal 73 abuts against the opposite surface of the second fixing column 41 to prevent the second terminal 73 from moving toward the gun body housing 20, and the installation position of the second terminal 73 is limited.

[0051] As one embodiment, Figure 3 and Figure 5 As shown, the second fixing column 41 is provided with a guide assembly opening 44 communicating with the second fixing through hole 43 , and the guide assembly opening 44 penetrates the peripheral side wall of the second fixing column 41 along the axial direction.

[0052] Further, such as Figure 1 to Figure 2 As shown, the outer circumference of the gun head housing 10 inserted into the gun body housing 20 is sleeved with a first sealing ring 16, and the inner circumference of the first sealing ring 16 is in contact with the outer circumference of the gun head housing 10, and the outer circumference of the first sealing ring 16 is in contact with the inner circumference of the gun body housing 20. The first sealing ring is deformed by compression to produce interference fit with the gun head housing 10 and the gun body housing 20, thereby blocking water vapor from entering the interior of the gun body housing 20 and improving the sealing performance of the connection between the gun head housing 10 and the gun body housing 20.

[0053] As one embodiment, Figure 1 to Figure 2 As shown, a first limiting sealing groove 17 is provided on the outer periphery of one end of the gun head housing 10 facing the gun body housing 20, and the first sealing ring 16 is connected in the first limiting sealing groove 17. The first limiting sealing groove 17 limits the installation position of the first sealing ring 16 to prevent the sealing performance from failing due to the movement of the first sealing ring 16.

[0054] As one embodiment, the gun head housing 10 is threadedly connected to the gun body housing 20, which is convenient for assembly and disassembly and maintenance.

[0055] Further, such as Figure 1 and Figure 7As shown, it also includes a charging cable 51 and a second sealing ring 52, the second sealing ring 52 is clamped on the inner wall of the gun body housing 20, the outer peripheral surface of the second sealing ring 52 is in contact with the inner wall of the gun body housing 20, the charging cable 51 extends into the gun body housing 20 through the second sealing ring 52 to be electrically connected to the terminal assembly 70, and the inner side surface of the second sealing ring 52 is in contact with the outer peripheral surface of the charging cable 51. The charging cable 51 is sealed and connected to the gun body housing 20 through the second sealing ring 52. Among them, the first sealing ring 16 and the second sealing ring 52 are respectively installed at both ends of the gun body housing 20 to block water vapor from entering the interior of the gun body housing 20.

[0056] As one embodiment, Figure 1 and Figure 7 As shown, the charging gun also includes a tail cover 60, which includes a first tail cover 61 and a second tail cover 62. The first tail cover 61 and the second tail cover 62 are respectively provided with connecting slots 63 on the opposite sides. The first tail cover 61 and the second tail cover 62 are respectively buckled and connected toward the axis to form the tail cover 60. The two connecting slots 63 are connected to form a cable connection through hole. The charging cable is sequentially inserted into the gun body shell 20 through the cable connection through hole and the second sealing ring 52 to achieve the fixing of the charging cable. The first tail cover 61 and the second tail cover 62 extend radially toward the gun body shell 20 to form an insert block 64. The gun body shell 20 is provided with a socket 23 whose position and number correspond to the insert block 64. The insert block 64 is plugged into the socket 23. The first tail cover 61 and the second tail cover 62 are connected by screws to achieve the fixing of the tail cover 60 on the gun body shell 20. The split setting of the tail cover 60 facilitates the sealing assembly operation and improves the assembly efficiency. Furthermore, the inner wall of the gun body shell 20 is provided with a limit strip 24 protruding radially, and a second limit sealing groove 25 is formed between the limit strip 24 and the insert block 64. The second sealing ring 52 is installed in the second limit sealing groove 25 to limit the second sealing ring 52 and improve the sealing reliability.

[0057] Further, such as Figure 7 and Figure 8 As shown, the gun body housing 20 is provided with an installation chamber 21 and a control port 22, the installation chamber 21 is connected to the inside of the gun body housing 20 through the control port 22, the charging gun further comprises a switch sealing ring 53 and a switch control member 54, the switch sealing ring 53 is sealedly connected to the control port 22, the switch control member 54 comprises a switch button 55 and a switch cable 56, the switch button 55 is fixed in the installation chamber, the switch cable 56 is electrically connected to the switch button 55, the switch cable 56 extends into the gun body housing 20 through the switch sealing ring 53 and is electrically connected to the terminal assembly 70. The installation chamber 21 provides an installation position for the switch control member 54, the switch cable 56 extends into the gun body housing 20 through the switch sealing ring 53, improves the connection sealing performance between the switch cable 56 and the gun body housing 20, and prevents water vapor from entering the gun body housing 20.

[0058] As one embodiment, Figure 7 and Figure 8 As shown, the installation chamber 21 is recessed toward the inner side of the gun body shell 20 to optimize the installation space of the switch control component 54.

[0059] As one embodiment, Figure 1 , Figure 7 and Figure 8 As shown, the button pressing plate 57 covers the top surface of the switch button 55, and the pressing control of the switch button 55 is achieved by pressing the case pressing plate downward.

[0060] Further, such as Figure 1 , Figure 7 and Figure 8 As shown, the charging gun also includes a key pressing plate 57 and a sealing sticker 58. The key pressing plate 57 is connected to the installation chamber 21 to form a connection gap 59. The sealing sticker 58 at least covers the surface of the connection gap 59. The key pressing plate 57 covers the opening at the top of the installation chamber 21 to form a top plane key area. The key pressing plate 57 covers the switch button 55 to protect the switch button 55. The sealing sticker 58 seals the connection gap 59, so that the installation chamber 21 forms a sealed space to prevent moisture from entering.

[0061] In summary, the embodiments of the utility model provide a charging gun with fewer overall parts, which is easy to install and maintain and has high assembly efficiency.

[0062] The above are only preferred implementations of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A charging gun, characterized in that: It includes a gun head shell, a gun body shell, a terminal fixing frame and a terminal assembly, the gun head shell is provided with a charging port, a gun head connecting port and a gun head accommodating cavity, the charging port and the gun head connecting port are respectively located at the two ends of the gun head shell, the gun head accommodating cavity is communicated with the charging port and the gun head connecting port respectively, the terminal assembly and the terminal fixing frame are located in the gun head accommodating cavity, the terminal assembly is partially exposed through the charging port, the terminal assembly is connected to the terminal fixing frame, the terminal fixing frame is detachably connected to the gun head shell, the end of the gun head shell facing the gun body shell is detachably connected to the gun body shell, and is communicated with the gun body shell through the gun head connecting port.

2. The charging gun according to claim 1, characterized in that: The gun head housing is provided with a first card interface, and the terminal fixing frame includes a fixing frame body and a first buckle located in the gun head accommodating cavity, one end of the first buckle is connected to the fixing frame body, and the other end of the first buckle is clamped to the first card interface.

3. The charging gun according to claim 2, characterized in that: The gun head shell has a gun head limiting surface at one end facing the gun body shell, and the terminal fixing frame also includes a second buckle, the second buckle includes a connecting rod and a hook body extending radially, one end of the connecting rod is connected to the fixing frame body, the other end of the connecting rod extends toward the gun head connecting port and is connected to the hook body, and the end of the hook body facing away from the gun body shell is provided with a buckle limiting surface, and the buckle limiting surface abuts against the gun head limiting surface.

4. The charging gun according to claim 2, characterized in that: The terminal assembly includes a first terminal, and the terminal fixing frame includes a first fixing column located in the gun head accommodating cavity, one end of the first fixing column is connected to the fixing frame body, and the other end extends toward the charging port. The first fixing column is provided with a first fixing through hole, and one end of the first terminal is inserted into the first fixing through hole and clamped with the first fixing column.

5. The charging gun according to claim 4, characterized in that: A limiting groove is provided on the outer peripheral surface of the first terminal, and a limiting block is provided on the first fixing column. The limiting block protrudes radially toward the axial direction in the first fixing through hole, and the limiting block is clamped in the limiting groove. The first fixing column is provided with a limiting assembly opening connected to the first fixing through hole, and the limiting assembly opening passes through the peripheral side wall of the first fixing column along the axial direction.

6. The charging gun according to claim 2, characterized in that: The terminal assembly includes a second terminal, and the terminal fixing frame includes a second fixing column located in the gun head accommodating cavity, the diameter of the second fixing column is smaller than the diameter of the second terminal, the second terminal abuts against the opposite surface of the second fixing column, and the end surface of the second terminal facing the second fixing column is connected with a guide strip, the outer peripheral wall of the second fixing column protrudes outward to form a guide groove extending axially, the second fixing column is provided with a second fixing through hole connected to the guide groove, and the guide strip extends into the second fixing through hole and is connected to the guide groove.

7. The charging gun according to claim 6, characterized in that: The gun head shell is inserted into the outer circumference of the gun body shell and is sleeved with a first sealing ring. The inner circumference of the first sealing ring is in contact with the outer circumference of the gun head shell, and the outer circumference of the first sealing ring is in contact with the inner circumference of the gun body shell.

8. The charging gun according to claim 1, characterized in that: It also includes a charging cable and a second sealing ring, the second sealing ring is clamped on the inner wall of the gun body shell, the outer circumference of the second sealing ring is in contact with the inner wall of the gun body shell, the charging cable extends into the gun body shell through the second sealing ring to be electrically connected to the terminal assembly, and the inner side surface of the second sealing ring is in contact with the outer circumference of the charging cable.

9. The charging gun according to claim 1, characterized in that: The gun body shell is provided with an installation chamber and a control port, the installation chamber is connected with the interior of the gun body shell through the control port, the charging gun also includes a switch sealing ring and a switch control component, the switch sealing ring is sealed and connected to the control port, the switch control component includes a switch button and a switch cable, the switch button is fixed in the installation cavity, the switch cable is electrically connected to the switch button, and the switch cable extends into the gun body shell through the switch sealing ring and is electrically connected to the terminal assembly.

10. The charging gun according to claim 9, characterized in that: The charging gun further includes a key press plate and a sealing sticker, wherein the key press plate is connected to the installation compartment cover to form a connecting gap, and the sealing sticker at least covers the surface of the connecting gap.

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