Charging gun

Abstract

The utility model relates to the technical field of charging guns, in particular to a charging gun, which comprises a main body and a cable assembly, the main body comprises a first clamping piece, one end of the first clamping piece is clamped with the cable assembly, the cable assembly comprises a rotating piece and a second clamping piece arranged in the rotating piece, and the second clamping piece is clamped with the first clamping piece in a matched mode; the first clamping piece is provided with a first protrusion, and the second clamping piece is provided with a first groove correspondingly matched with the first protrusion. A rotating groove is formed in the first clamping piece, a second protrusion corresponding to the rotating groove is arranged on the inner wall of the rotating piece, and when the first protrusion and the first groove are clamped in a matched mode, the rotating piece is rotated and drives the second protrusion to rotate, so that the second protrusion is locked in the rotating groove, and clamping and locking of the first clamping piece and the second clamping piece are achieved; the first clamping piece and the second clamping piece are clamped, the first clamping piece and the rotating piece are rotationally locked, a locking mechanism is added for the clamping structure, and stability and waterproofness are guaranteed while the main body and the cable assembly are in quick butt joint.

Description

Technical field

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

[0002] With the advancement of electric vehicle technology and the growth of market demand, more and more electric vehicle manufacturers have begun to realize that charging facilities need to be standardized and professionalized. Charging guns and the interfaces between charging guns and cables have gradually become core components of electric vehicle charging facilities.

[0003] To improve the applicability and flexibility of charging infrastructure, the connection between charging guns and cables is gradually moving towards adjustable and detachable designs. With interchangeable charging cables, users can choose different lengths to suit different parking spaces or usage environments. However, many detachable solutions use plug-and-socket connections, which can be insecure in practice. [Utility Model Content]

[0004] In order to solve the technical problem that the connection between the existing charging gun and the cable is not firm enough, the utility model provides a charging gun.

[0005] The solution to the technical problem solved by the utility model is to provide a charging gun, including a main body and a cable assembly detachably connected to the main body; the main body includes a first clamping member at one end which is clamped to the cable assembly, the cable assembly includes a rotating member and a second clamping member arranged in the rotating member, and the second clamping member is engaged with the first clamping member; a first protrusion is provided on the inner wall of the first clamping member, and a first groove which corresponds to the first protrusion is provided on the second clamping member; a rotating groove is provided on the outer wall of the first clamping member, and a second protrusion is provided on the inner wall of the rotating member corresponding to the rotating groove, when the first protrusion is engaged with the first groove, the rotating member is rotated and drives the second protrusion to rotate so that the second protrusion is locked in the rotating groove to achieve the clamping and locking of the first clamping member and the second clamping member.

[0006] Preferably, the rotation groove includes a second groove arranged along the length direction of the main body and a locking groove opened at an angle to the second groove and connected to the second groove, and the length of the locking groove is greater than the width of the second groove.

[0007] Preferably, a clamping gap is provided between the rotating member and the second clamping member, and the first clamping member extends into the clamping gap to achieve a clamping fit between the second protrusion and the rotating groove.

[0008] Preferably, the cable assembly further comprises a cable housing, the cable housing is rotatably connected to the rotating member, and the second clamping member is fixedly connected to the cable housing.

[0009] Preferably, a third protrusion is provided on the first clamping member, and a third groove is provided on the inner wall of the main body near the first clamping member. The first clamping member is clamped to the main body through the cooperation between the third protrusion and the third groove.

[0010] Preferably, the main body further comprises a sliding gasket, and the sliding gasket is arranged at one end of the main body facing the second clamping member.

[0011] Preferably, the first clamping member and the second clamping member are electrically connected via a pin provided on one of them and a socket provided on the other.

[0012] Preferably, the main body includes a plug portion at one end away from the first clamping member, and the plug portion is used to connect to the electric vehicle.

[0013] Preferably, the plug portion includes a circuit board and a control unit arranged along the length direction of the main body, the main body further includes a shell, and a heat insulation gap is provided between the circuit board and the shell.

[0014] Preferably, a timing protector is provided on the circuit board.

[0015] Compared with the existing technology, the charging gun provided by the utility model has the following advantages:

[0016] 1. In the charging gun provided in the embodiment of the present invention, the first clamping member is locked by the first protrusion and the first groove on the second clamping member, thereby enhancing the stability of the connection. The rotating member and the rotating groove are rotated and locked to limit the displacement of the cable assembly and the main body along the length direction of the main body, preventing the cable assembly and the main body from loosening and accidental detachment during use, thereby improving the tensile strength and durability of the connection. The rotary locking method makes the connection and disassembly of the charging gun main body and the cable assembly easier.

[0017] 2. In the charging gun provided in the embodiment of the present invention, the second groove guides the second protrusion into the rotating groove to ensure the docking of the rotating member and the first clamping member. The second protrusion is connected to the locking groove. When the rotating member is rotated, the second protrusion enters the locking groove. The length of the locking groove is greater than the width of the second groove. The locking groove provides a locking position. When the second protrusion enters the locking groove, the first clamping member and the rotating member form a firmly fixed state.

[0018] 3. The charging gun provided in the embodiment of the present invention has a clamping gap that ensures that there is enough space between the rotating part and the second clamping part for docking, so that the first clamping part can extend into the clamping gap and complete the clamping and locking with the second clamping part, preventing the docking between the first clamping part and the second clamping part from getting stuck.

[0019] 4. In the charging gun provided in the embodiment of the present invention, the cable housing provides physical protection, protects the wires, conductors and other internal components in the cable assembly, and enhances structural stability; the second clamping member is fixedly connected to the cable housing, and the clamping member itself becomes part of the fixed structure of the cable housing and will not be driven during the rotation of the rotating member, thereby maintaining the stability of the clamping connection between the first protrusion and the first groove.

[0020] 5. In the charging gun provided in the embodiment of the present invention, the first clamping part and the main body form a firm mechanical connection through the cooperation of the third protrusion and the third groove. Each connected component is strictly matched, which enhances the tensile strength and shock resistance and simplifies the assembly and disassembly process between the first clamping part and the main body.

[0021] 6. The charging gun provided in the embodiment of the present invention has a sliding gasket made of a material with good sliding properties, which reduces the contact friction between the main body and the rotating part, reduces the wear of the parts, extends the service life of the assembly, acts as a buffer between the connection part of the main body and the cable assembly, and absorbs part of the external impact and vibration.

[0022] 7. The physical connection between the pin and the socket of the charging gun provided in the embodiment of the present invention can provide a firm and stable electrical connection, ensure the reliability of electrical signal transmission, and facilitate disassembly and maintenance. When the equipment needs to be repaired or replaced, the electrical connection can be disconnected by simply pulling out the second clip or the first clip. The pin and the socket cooperate in electrical connection, reducing contact resistance, saving space and simplifying the structure.

[0023] 8. The charging gun provided in the embodiment of the present invention simplifies the connection between the plug part and the electric vehicle by arranging the plug part away from the connector, thereby reducing the risk of collision or damage to the connector and achieving a more stable plug connection.

[0024] 9. In the charging gun provided in the embodiment of the present invention, the thermal insulation gap between the circuit board and the shell prevents the heat on the circuit board from being directly transferred to the shell, thereby preventing scalding. The thermal insulation gap also facilitates air circulation, prevents overheating inside the device, optimizes the spatial layout, and forms a better thermal management structure.

[0025] 10. The charging gun provided in the embodiment of the present invention has a timing protector that can control the working time of the electric vehicle charging system according to the set time limit, preventing the battery from being in a charging state for a long time or causing overcharging.

Brief Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the charging gun provided in the first embodiment of the present utility model.

[0028] Figure 2 It is a schematic diagram of the three-dimensional structure of the main body of the charging gun provided in the first embodiment of the present utility model.

[0029] Figure 3 It is a schematic diagram of the three-dimensional structure of the cable assembly of the charging gun provided in the first embodiment of the present utility model.

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the first clamping component of the charging gun provided in the first embodiment of the present utility model.

[0031] Figure 5 It is a cross-sectional schematic diagram of the main body of the charging gun provided in the first embodiment of the present utility model.

[0032] Figure 6 yes Figure 5 A is an enlarged schematic diagram.

[0033] Description of the accompanying drawings:

[0034] 100. Charging gun;

[0035] 1. Main body; 2. Cable assembly; 3. First clamping member; 4. Rotating member; 5. Second clamping member; 6. Clamping gap; 7. Sliding gasket; 8. Thermal insulation gap;

[0036] 11. Third groove; 12. Plug portion; 13. Housing; 21. Cable housing; 31. First protrusion; 32. Rotation slot; 33. Third protrusion; 34. Pin; 41. Second protrusion; 51. First groove; 52. Jack;

[0037] 121, circuit board; 122, circuit control unit; 321, second groove; 322, locking groove;

[0038] 1211. Timing protector. [Specific implementation method]

[0039] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0041] In this utility model, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the utility model and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0042] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0043] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0044] See also Figure 1-Figure 3 The first embodiment of the present invention provides a charging gun 100, which includes a main body 1 and a cable assembly 2 detachably connected to the main body 1. The main body 1 includes a first clamping member 3 with one end clamped to the cable assembly 2. The cable assembly 2 includes a rotating member 4 and a second clamping member 5 disposed within the rotating member 4. The second clamping member 5 is engaged with the first clamping member 3. The first clamping member 3 has a first protrusion 31 on its inner wall, and the second clamping member 5 has a first groove 51 corresponding to the first protrusion 31.

[0045] A rotation groove 32 is provided on the outer wall of the first clamping member 3, and a second protrusion 41 is provided on the inner wall of the rotating member 4 corresponding to the rotation groove 32. When the first protrusion 31 is engaged with the first groove 51, the rotating member 4 is rotated and drives the second protrusion 41 to rotate so that the second protrusion 41 is locked in the rotation groove 32 to realize the clamping and locking of the first clamping member 3 and the second clamping member 5.

[0046] It can be understood that the first clamping member 3 is located at the end of the main body 1 of the charging gun 100, and is fixed with the second clamping member 5 of the cable assembly 2 through the first protrusion 31 on the inner wall, ensuring that the cable assembly 2 remains connected to the main body 1 during use and will not fall off easily.

[0047] The second clamping member 5 is disposed inside the rotating member 4 , and the first groove 51 is disposed on the second clamping member 5 . The first groove 51 cooperates with the first protrusion 31 to ensure that the second clamping member 5 and the first clamping member 3 are firmly engaged.

[0048] The rotation groove 32 provided on the outer wall of the first clamping member 3 guides the second protrusion 41 to rotate along the rotation groove 32, playing a locking role. The cable assembly 2 contacts the first clamping member 3 of the main body 1. The cooperation between the first groove 51 and the first protrusion 31 makes the first clamping member 3 and the second clamping member 5 initially clamped together. As the clamping and insertion are further engaged, the user applies force to the rotating member 4, and the rotating member 4 begins to rotate. During the rotation, the second protrusion 41 on the inner wall of the rotating member 4 rotates along the rotation groove 32 on the outer wall of the first clamping member 3, achieving a locking effect, thereby making the connection between the first clamping member 3 and the second clamping member 5 more secure. After multiple plugging and unplugging, the connection remains stable under various usage environments, and the first clamping member 3 and the rotating member 4 will not be worn or damaged due to excessive use.

[0049] Specifically, when the snap-fit ​​is completed, the first protrusion 31 of the first snap-fit ​​part 3 is fully inserted into the first groove 51 of the second snap-fit ​​part 5 and is in a fixed and stable connection state. This stable connection state does not change with the rotation of the rotating part 4 or other external forces. When the rotating part 4 rotates, the first protrusion 31 and the first groove 51 remain stable.

[0050] Optionally, the outer surface of the rotating groove 32 may be smoothed to reduce friction and improve smoothness during the rotation process.

[0051] Specifically, multiple groups of rotation grooves 32 can be set on the outer wall of the first clamping member 3, and multiple groups of second protrusions 41 corresponding to the rotation grooves 32 can also be configured, so that the rotation of the rotating member 4 on the outside of the first clamping member 3 is smoother, helping to make the connection between the rotating member 4 and the first clamping member 3 more secure.

[0052] Further, see Figure 4The rotating groove 32 includes a second groove 321 arranged along the length direction of the main body 1 and a locking groove 322 opened at an angle to the second groove 321 and connected to the second groove 321. The length of the locking groove 322 is greater than the width of the second groove 321.

[0053] It can be understood that the second groove 321 extends in the axial direction of the charging gun 100, providing a guide track for the second protrusion 41 to enter the rotation groove 32, allowing the second protrusion 41 to enter the locking groove 322, and the locking groove 322 provides a bearing and snap-in mechanism, so that the second protrusion 41 is fixed in this position, thereby achieving a locking effect.

[0054] Specifically, the locking groove 322 is connected to the second groove 321, and the connection is smooth and has no jamming protrusions, which helps the second protrusion 41 to smoothly rotate from the second groove 321 into the locking groove 322. The angle between the second groove 321 and the locking groove 322 is less than or equal to 90°.

[0055] Optionally, auxiliary parts of different shapes can be cut out of the notch of the second groove 321 to help the second protrusion 41 enter the second groove 321 without jamming and be limited by the locking groove; multiple locking points can also be set in the locking groove 322 to further enhance the security of locking.

[0056] Furthermore, a clamping gap 6 is provided between the rotating member 4 and the second clamping member 5 , and the first clamping member 3 extends into the clamping gap 6 to achieve a clamping fit between the second protrusion 41 and the locking groove 322 .

[0057] Specifically, the clamping gap 6 is located between the rotating part 4 and the second clamping part 5, and the second protrusion 41 is set toward the clamping gap 6. The clamping gap 6 accommodates the second protrusion 41 to prevent the second protrusion 41 from interfering with the clamping cooperation between the first clamping part 3 and the second clamping part 5. The clamping gap 6 also accommodates the first clamping part 3 to ensure that the clamping process of the first clamping part 3 and the second clamping part 5 proceeds smoothly.

[0058] The clamping gap 6 is kept at an appropriate width so that after the second protrusion 41 enters the rotating groove 32 , the connection state between the rotating member 4 and the first clamping member 3 is stable.

[0059] Furthermore, the cable assembly 2 further includes a cable housing 21 , the cable housing 21 is rotatably connected to the rotating member 4 , and the second clamping member 5 is fixedly connected to the cable housing 21 .

[0060] It can be understood that the cable housing 21 protects the internal components of the cable assembly 2, provides structural support, and realizes the connection between the cable assembly 2 and other components. It is rotationally connected to the rotating part 4, and there is no excessive friction resistance at the connection. When the rotating part 4 rotates, the cable housing 21 remains stable.

[0061] Specifically, in order to cooperate with the smooth rotation of the rotating part 4, the rotating part 4 includes auxiliary components such as bearings or balls, rotating joints, etc. The second clamping part 5 passes through the rotating part 4 set in a hollow cylindrical shape, one end is fixedly connected to the cable housing 21, and the other end is clamped with the first clamping part 3.

[0062] One end of the second clamping member 5 is fixedly connected to the cable housing 21 to ensure that when the rotating member 4 rotates, the second clamping member 5 will not be driven to rotate or produce excessive shaking displacement, and maintain a stable connection with the first clamping member 3.

[0063] One end of the cable assembly 2 facing away from the second clamping component 5 is also connected to a power plug, which is connected to the mains electricity to realize the charging function of the charging gun 100.

[0064] Further, see Figure 5-Figure 6 A third protrusion 33 is provided on the first clamping member 3, and a third groove 11 is provided on the inner wall of the main body 1 near the first clamping member 3. The first clamping member 3 is clamped with the main body 1 through the cooperation of the third protrusion 33 and the third groove 11.

[0065] It can be understood that the snap connection has greater stability, ensuring that the first snap connection member 3 and the main body 1 maintain a correct docking and connection state during use. The snap connection also facilitates the disassembly of the two, enhancing practicality.

[0066] The third protrusion 33 is located at the end of the first clip 3, and the third groove 11 is located at a corresponding position on the inner wall of the main body 1, ensuring that the third protrusion 33 remains firm when subjected to pressure or vibration. Two groups of third protrusions 33 are symmetrically arranged relative to the central axis of the first clip 3 to balance the vibration when the first clip 3 is connected to the main body 1.

[0067] Furthermore, the main body 1 further includes a sliding gasket 7 , which is arranged at one end of the main body 1 facing the second clamping member 5 .

[0068] It can be understood that the sliding gasket 7 is maintained between the rotating part 4 and the first clamping part 3 as a buffer and lubrication, bearing the pressure and friction generated during the rotational movement of the rotating part 4. The sliding gasket 7 maintains close contact with the rotating part 4 and maintains a certain flexibility and elasticity, so that the rotating part 4 can adapt to the pressure changes during movement.

[0069] Specifically, the sliding gasket 7 is a planar sheet structure that directly covers the surface of the contact connection between the main body 1 and the first clamping member 3 .

[0070] Furthermore, the first clamping member 3 and the second clamping member 5 are electrically connected via a pin 34 provided on one of them and a socket 52 provided on the other.

[0071] It can be understood that when the first clip 3 is docked with the second clip 5, the pin 34 is inserted into the socket 52 to form an electrical connection. The contact surface between the pin 34 and the socket 52 is conductive, thereby establishing a stable circuit connection. At this time, current or signal can flow between the pin 34 and the socket 52 to ensure the normal operation of the charging gun 100.

[0072] The socket 52 or the pin 34 is arranged at the end of the first clamping member 3 and the second clamping member 5. When the position of the socket 52 matches the pin 34, the aperture, depth and shape of the socket 52 accurately match the setting of the pin 34; at the same time, the first clamping member 3 and the second clamping member 5 serve as external protective structures for the pin 34 and the socket 52 to prevent external contaminants from causing mechanical damage to the pin 34 and the socket 52.

[0073] Furthermore, the main body 1 includes a plug portion 12 at one end away from the first clamping member 3 , and the plug portion 12 is used to connect to the electric vehicle.

[0074] It can be understood that the plug portion 12 is connected to the charging port of the electric vehicle, allowing power to be transferred from the charging station to the battery of the electric vehicle.

[0075] The plug part 12 is located at the end of the charging gun 100 away from the first clamping part 3. The plug part 12 has a built-in interface for communication with the charging pile or the electric vehicle battery management system to ensure data monitoring, power regulation and fault handling during the charging process.

[0076] Further, see Figure 5 The plug portion 12 includes a circuit board 121 arranged along the length direction of the main body 1. The main body 1 also includes a shell 13. An insulation gap 8 is provided between the circuit board 121 and the shell 13.

[0077] Furthermore, the plug part 12 also includes a circuit control unit 122 arranged along the length direction of the main body 1. The circuit control unit 122 is integrated into the plug part 12, making the charging gun 100 more compact and lightweight as a whole. The circuit control unit 122 is spaced apart from the circuit board 121; a timing protector 1211 is provided on the circuit board 121; when the current working time exceeds the preset limit, the timing protector 1211 will cut off the power supply or trigger an alarm.

[0078] Specifically, the circuit board 121 carries electronic components and realizes electrical connections, transmitting signals and power to the control unit, the timing protector 1211 and other parts that need to be controlled. The circuit board 121 is placed along the length direction of the plug body 1 and is located in the middle of the plug part 12.

[0079] The thermal insulation gap 8 effectively isolates direct heat conduction between the circuit board 121 and the shell 13, and prevents the circuit board 121 from malfunctioning due to high temperature. The thermal insulation gap 8 has an appropriate width, which can effectively insulate and prevent users from being burned when holding the shell 13 without taking up too much space.

[0080] Furthermore, the thermal insulation gap 8 may be provided with materials with good thermal insulation properties such as ceramics, polymers or thermal insulation foam.

[0081] Compared with the existing technology, the charging gun provided by the utility model has the following advantages:

[0082] 1. In the charging gun provided in the embodiment of the present invention, the first clamping member is locked by the first protrusion and the first groove on the second clamping member, thereby enhancing the stability of the connection. The rotating member and the rotating groove are rotated and locked to limit the displacement of the cable assembly and the main body along the length direction of the main body, preventing the cable assembly and the main body from loosening and accidental detachment during use, thereby improving the tensile strength and durability of the connection. The rotary locking method makes the connection and disassembly of the charging gun main body and the cable assembly easier.

[0083] 2. In the charging gun provided in the embodiment of the present invention, the second groove guides the second protrusion into the rotating groove to ensure the docking of the rotating member and the first clamping member. The second protrusion is connected to the locking groove. When the rotating member is rotated, the second protrusion enters the locking groove. The length of the locking groove is greater than the width of the second groove. The locking groove provides a locking position. When the second protrusion enters the locking groove, the first clamping member and the rotating member form a firmly fixed state.

[0084] 3. The charging gun provided in the embodiment of the present invention has a clamping gap that ensures that there is enough space between the rotating part and the second clamping part for docking, so that the first clamping part can extend into the clamping gap and complete the clamping and locking with the second clamping part, preventing the docking between the first clamping part and the second clamping part from getting stuck.

[0085] 4. In the charging gun provided in the embodiment of the present invention, the cable housing provides physical protection, protects the wires, conductors and other internal components in the cable assembly, and enhances structural stability; the second clamping member is fixedly connected to the cable housing, and the clamping member itself becomes part of the fixed structure of the cable housing and will not be driven during the rotation of the rotating member, thereby maintaining the stability of the clamping connection between the first protrusion and the first groove.

[0086] 5. In the charging gun provided in the embodiment of the present invention, the first clamping part and the main body form a firm mechanical connection through the cooperation of the third protrusion and the third groove. Each connected component is strictly matched, which enhances the tensile strength and shock resistance and simplifies the assembly and disassembly process between the first clamping part and the main body.

[0087] 6. The charging gun provided in the embodiment of the present invention has a sliding gasket made of a material with good sliding properties, which reduces the contact friction between the main body and the rotating part, reduces the wear of the parts, extends the service life of the assembly, acts as a buffer between the connection part of the main body and the cable assembly, and absorbs part of the external impact and vibration.

[0088] 7. The physical connection between the pin and the socket of the charging gun provided in the embodiment of the present invention can provide a firm and stable electrical connection, ensure the reliability of electrical signal transmission, and facilitate disassembly and maintenance. When the equipment needs to be repaired or replaced, the electrical connection can be disconnected by simply pulling out the second clip or the first clip. The pin and the socket cooperate in electrical connection, reducing contact resistance, saving space and simplifying the structure.

[0089] 8. The charging gun provided in the embodiment of the present invention simplifies the connection between the plug part and the electric vehicle by arranging the plug part away from the connector, thereby reducing the risk of collision or damage to the connector and achieving a more stable plug connection.

[0090] 9. In the charging gun provided in the embodiment of the present invention, the thermal insulation gap between the circuit board and the shell prevents the heat on the circuit board from being directly transferred to the shell, thereby preventing scalding. The thermal insulation gap also facilitates air circulation, prevents overheating inside the device, optimizes the spatial layout, and forms a better thermal management structure.

[0091] 10. The charging gun provided in the embodiment of the present invention has a timing protector that can control the working time of the electric vehicle charging system according to the set time limit, preventing the battery from being in a charging state for a long time or causing overcharging.

[0092] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A charging gun, characterized by: The charging gun includes a main body and a cable assembly detachably connected to the main body; the main body includes a first clamping member at one end that is clamped to the cable assembly; the cable assembly includes a rotating member and a second clamping member disposed within the rotating member, the second clamping member being engaged with the first clamping member; a first protrusion is provided on the inner wall of the first clamping member, and a first groove is provided on the second clamping member that corresponds to and cooperates with the first protrusion; A rotation groove is provided on the outer wall of the first clamping member, and a second protrusion is provided on the inner wall of the rotating member corresponding to the rotation groove. When the first protrusion is engaged with the first groove, the rotating member is rotated and the second protrusion is driven to rotate so that the second protrusion is locked in the rotation groove to achieve the clamping and locking of the first clamping member and the second clamping member.

2. The charging gun according to claim 1, wherein: The rotating groove includes a second groove arranged along the length direction of the main body and a locking groove opened at an angle to the second groove and connected to the second groove. The length of the locking groove is greater than the width of the second groove.

3. The charging gun according to claim 1, wherein: A clamping gap is provided between the rotating member and the second clamping member, and the first clamping member extends into the clamping gap to realize the clamping fit between the second protrusion and the rotating groove.

4. The charging gun according to claim 1, wherein: The cable assembly further includes a cable housing, the cable housing is rotatably connected to the rotating member, and the second clamping member is fixedly connected to the cable housing.

5. The charging gun according to claim 1, wherein: A third protrusion is provided on the first clamping member, and a third groove is provided on the inner wall of the main body near the first clamping member. The first clamping member is clamped to the main body through the cooperation between the third protrusion and the third groove.

6. The charging gun according to claim 1, wherein: The main body further includes a sliding gasket, which is arranged at one end of the main body facing the second clamping member.

7. The charging gun according to claim 1, wherein: The first clamping member and the second clamping member are electrically connected via a pin provided on one of them and a socket provided on the other.

8. The charging gun according to claim 1, wherein: The main body includes a plug portion at one end away from the first clamping member, and the plug portion is used to be connected to the electric vehicle.

9. The charging gun according to claim 8, wherein: The plug portion includes a circuit board and a control unit arranged along the length direction of the main body. The main body also includes a shell. A heat insulation gap is provided between the circuit board and the shell.

10. The charging gun according to claim 9, wherein: A timing protector is provided on the circuit board.

Images