Integrated charging and discharging gun

Abstract

The utility model belongs to charging accessory technical field especially relates to an integrated charging and discharging gun, including electricity connection plug, casing, connecting plug and connecting plugboard, the casing is provided with the installation inner chamber, the connecting plug is arranged in one end of the casing, the connecting plugboard is arranged in the other end of the casing, the connecting plugboard is provided with the plug -in hole for the plug -in adaptation of electricity connection plug, the installation inner chamber is provided with the charging and discharging management circuit board, the connecting plug and the connecting plugboard all with electricity connection plugboard electric connection. In the non -use state, electricity connection plug can be separated with the connecting plugboard and is independently stored. The existing technology is fundamentally avoided because the cable fixed connection leads to the persistent and violent bending deformation of the plug head connection when storing.

Description

Technical Field

[0001] This utility model belongs to the field of charging accessory technology, and in particular relates to an integrated charging and discharging gun. Background Technology

[0002] Existing integrated charging and discharging guns typically consist of a charging head, a control unit, a fixed cable, and a power plug. The charging head connects to the standard charging interface for electric vehicles, while the power plug connects to a household or industrial socket. During operation, the control unit manages the bidirectional flow of energy, enabling charging of the vehicle from the grid or discharging of energy from the vehicle to external electrical appliances. All parts of the device are permanently connected by an inseparable cable, forming a physical unit.

[0003] However, this integrated design with a fixed cable has certain limitations. Because the cable between the charging gun and the power plug cannot be detached, the connection point, especially the junction between the gun and the cable, is often subjected to repeated bending and stress during storage and packaging. Although this area is generally protected with flexible materials such as insulating rubber to accommodate deformation, long-term use and continuous bending stress can still lead to material fatigue and wear, potentially causing problems such as cracking of the protective layer, decreased insulation performance, and even damage to the internal wire cores. This not only affects the product's lifespan but also poses safety hazards during charging and discharging. Utility Model Content

[0004] The purpose of this invention is to provide an integrated charging and discharging gun, which aims to solve the technical problem that in the existing integrated charging and discharging gun, continuous bending stress still leads to material fatigue and wear, which may cause cracking of the protective layer, deterioration of insulation performance, or even damage to the internal wire core.

[0005] To achieve the above objectives, this utility model provides an integrated charging and discharging gun, comprising a power connector, a housing, a connecting plug, and a connecting plate. The housing has an internal mounting cavity; the connecting plug is located at one end of the housing; the connecting plate is located at the other end of the housing; the connecting plate has a plug hole for inserting and adapting to the power connector; a charging and discharging management circuit board is located within the internal mounting cavity, and the charging and discharging management circuit board has control contacts for switching the charging and discharging modes of the integrated charging and discharging gun. The control contacts pass through the connecting plate, and the power connector has a control switch for electrically connecting to the control contacts. Both the connecting plug and the connecting plate are electrically connected to the charging and discharging management circuit board.

[0006] Optionally, the power connector includes a first male connector, a cable, and a second male connector. The first male connector and the second male connector are electrically connected through the cable. The first male connector is plugged into an external power socket, and the second male connector is detachably plugged into the socket.

[0007] Optionally, the housing is provided in a sleeve-shaped structure, the mounting cavity is formed in the inner ring of the housing, the connecting plug and the connecting plate are respectively installed at both ends of the housing, the end of the connecting plug extends to the outside of the mounting cavity, and the charging and discharging management circuit board is disposed in the mounting cavity and located between the connecting plug and the connecting plate.

[0008] Optionally, the connector includes a connector base, a limiting plate, a snap-fit ​​base, a first connecting plate, and a pin. The connector base is disposed at one end of the housing, the snap-fit ​​base is disposed at the end of the connector base away from the housing, the limiting plate is disposed between the snap-fit ​​base and the connector base, the limiting plate fits the shape of the opening edge of the mounting cavity, the snap-fit ​​base is provided with a mounting hole at the end away from the connector base, the first connecting plate is mounted on the end of the connector base, one end of the pin is electrically connected to the first connecting plate, and the other end of the pin extends into the mounting hole.

[0009] Optionally, the integrated charging and discharging gun further includes a locking mechanism, which is disposed on the housing and used to lock the connector plug into the charging interface of the electric vehicle.

[0010] Optionally, the locking mechanism includes a locking arm, a locking switch, and a button. The housing has a receiving cavity. The locking arm is rotatably connected to the receiving cavity at its middle position. The locking switch is located in the housing and at the end of the mounting cavity near the connector. The output end of the locking switch is drivenly connected to one end of the locking arm. The button slides through the housing, and one end of the button abuts against the end of the locking arm away from the locking switch.

[0011] Optionally, an arc-shaped baffle is provided at the end of the mounting cavity near the button, one end of the arc-shaped baffle extends toward the connector, and the receiving cavity is formed between the arc-shaped baffle and the inner wall of the mounting cavity near the button, and the locking swing arm extends along the length direction of the arc-shaped baffle.

[0012] Optionally, the end of the locking arm away from the button extends to the outside of the mounting cavity and is provided with a hook for engaging the edge of the electric vehicle charging slot.

[0013] Optionally, the locking switch is a relay, the locking switch is electrically connected to the charge / discharge management circuit board, and the contacts of the locking switch abut against the end of the locking swing arm.

[0014] Optionally, the end face of the button facing away from the mounting cavity is provided with anti-slip texture.

[0015] The integrated charging and discharging gun provided in this embodiment of the present invention has at least one of the following technical effects: by changing the traditional fixed power connector to a detachable design, a connecting plate with a plug hole is creatively provided at one end of the housing, allowing the power connector to be conveniently plugged in during use. The charging and discharging management circuit board inside the housing transfers electrical energy to the connecting plug, thereby completing the charging and discharging operation. When not in use, the power connector can be separated from the connecting plate and stored independently. This technical feature fundamentally avoids the continuous and severe bending deformation of the plug at the gun head connection point caused by the fixed cable connection in the prior art, effectively solving the long-term problem of fatigue, wear, and even damage to the insulation protection material, significantly improving the product's durability and safety. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the integrated charging and discharging gun provided in an embodiment of this utility model.

[0018] Figure 2 This is a schematic diagram of the connector plug, housing, and connector plate provided in an embodiment of the present utility model.

[0019] Figure 3 This is a structural schematic diagram of the connector plug, housing, and connector plate provided in an embodiment of the present utility model from another angle.

[0020] Figure 4 This is a cross-sectional view of the connector plug, housing, and connector plate provided in an embodiment of the present utility model.

[0021] Figure 5 An exploded view of the connector plug, housing, and connector plate provided in an embodiment of this utility model.

[0022] Figure 6 This is a schematic diagram of the structure of the control switch provided in an embodiment of the present utility model.

[0023] The following are the labeling elements in the figure: 100—Power plug; 200—Housing; 300—Connecting plug 400—Connecting plate; 500—Installation cavity; 600—Socket 110—First male connector; 120—Cable connector; 130—Second male connector 310—Connector; 320—Limiting plate; 330—Snap-fit ​​connector 340—First connecting plate; 350—Pin; 331—Mounting hole 600—Locking mechanism; 610—Locking swing arm; 620—Locking switch 630—Button; 510—Arc-shaped baffle; 210—Accommodating cavity 611—Hook; 631—Anti-slip texture; 800—Control switch 700—Control contact. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The following description is based on the accompanying drawings. Figures 1-5 The described embodiments are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0025] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0028] In one embodiment of this utility model, such as Figures 1-5 As shown, an integrated charging and discharging gun is provided, including a power connector 100, a housing 200, a connecting connector 300, and a connecting plate 400. The housing 200 is provided with an inner mounting cavity 500. The connecting connector 300 is located at one end of the housing 200. The connecting plate 400 is located at the other end of the housing 200. The connecting plate 400 is provided with a plug hole 600 for inserting and adapting the power connector 100. A charging and discharging management circuit board is provided in the inner mounting cavity. The charging and discharging management circuit board is provided with a control contact 700 for switching the charging mode and discharging mode of the integrated charging and discharging gun. The control contact 700 passes through the connecting plate 400. The power connector is provided with a control switch 800 for electrically connecting the control contact 700. The connecting connector 300 and the connecting plate 400 are both electrically connected to the charging and discharging management circuit board. The charge / discharge management circuit board is the core control component of the charge / discharge device. Through its internally integrated intelligent chip and circuit, it safely and efficiently manages the bidirectional flow of electrical energy between the battery and external devices, and ensures the stability and safety of the entire process. In this embodiment, the charge / discharge management circuit board is an ETA6002 charge / discharge management chip. In other embodiments, the charge / discharge management circuit board can also be an IP2369 charge / discharge management chip.

[0029] Specifically, an auxiliary circuit board (not shown) is provided inside the power connector 100. This auxiliary circuit board intelligently determines whether the connector is connected to the connection plate 400 by detecting the connection resistance value when the control switch 800 and control contact 700 make contact after the power connector 100 is connected to the connection plate 400. When the detected resistance value meets the successful connection condition, the auxiliary circuit board controls its internal relay to close, making the circuit conduct and sending a charging mode signal to the charge / discharge management circuit board, at which point the device enters the charging mode. If no valid connection resistance value is detected, the integrated charge / discharge gun defaults to the discharging mode. This design realizes automatic identification and switching of charging and discharging modes without manual intervention by the user, effectively avoiding operation failures or equipment malfunctions that may be caused by incorrect mode settings, and improving the convenience and intelligence of use.

[0030] By changing the traditional fixed power connector 100 to a detachable design, a connecting plate 400 with a plug hole 600 is creatively provided at one end of the housing 200. This allows the power connector 100 to be conveniently plugged into it during use, and the charging and discharging management circuit board inside the housing 200 transfers electrical energy to the connecting plug 300 to complete the charging and discharging operation. When not in use, the power connector 100 can be detached from the connecting plate 400 and stored independently. This technical improvement fundamentally avoids the continuous and severe bending deformation of the connector at the gun head connection caused by the fixed cable connection in the prior art. It effectively solves the long-term problem of fatigue, wear, and even damage to the insulation protection material caused by this, and significantly improves the product's durability and safety.

[0031] like Figures 1-5 As shown, in another embodiment of this utility model, the power connector 100 includes a first male connector 110, a cable 120, and a second male connector 130. The first male connector 110 and the second male connector 130 are electrically connected through the cable 120. The first male connector 110 is plugged into an external power socket, and the second male connector 130 is detachably plugged into the socket 600. This solution designs the power connector 100 itself as a detachable structure including the cable 120 and two connectors, allowing the length of the cable 120 connecting to the charging gun body to be flexibly configured. In use, the first male connector 110 connects to a remote power source, and the second male connector 130 connects to the plug plate on the gun body, achieving flexible extension of the power access point. When stored, the entire cable 120 can be completely separated from the gun body, thereby completely eliminating any bending stress generated during storage and packaging due to the fixed connection of the cable 120 to the gun body, fundamentally eliminating the risk of damage caused by long-term repeated bending of a single fixed cable connection point.

[0032] like Figures 1-5As shown, in another embodiment of this utility model, the housing 200 is arranged in a sleeve-like structure, the mounting cavity 500 is formed in the inner ring of the housing 200, the connecting plug 300 and the connecting plate 400 are respectively installed at both ends of the housing 200, the end of the connecting plug 300 extends to the outside of the mounting cavity 500, and the charge / discharge management circuit board is disposed in the mounting cavity 500 and located between the connecting plug 300 and the connecting plate 400. This sleeve-like housing 200 structure provides a centralized, regular and enclosed protective space for the internal circuit board and various connecting components, making the electrical connection layout more compact and reasonable; this one-piece molded cylindrical structure not only facilitates production and assembly, but its uniform wall thickness can also effectively protect the internal charge / discharge management circuit board from external impacts and environmental influences, improving the structural strength and environmental adaptability of the entire product, and overcoming the defects of internal stress concentration or insufficient protection that may be caused by the dispersed layout of components in traditional designs.

[0033] like Figures 1-5 As shown, in another embodiment of this utility model, the connector 300 includes a connector 310, a limiting plate 320, a snap-fit ​​seat 330, a first connecting plate 340, and a pin 350. The connector 310 is disposed at the end of the housing 200, the snap-fit ​​seat 330 is disposed at the end of the connector 310 away from the housing 200, the limiting plate 320 is disposed between the snap-fit ​​seat 330 and the connector 310, and the limiting plate 320 fits the shape of the opening edge of the mounting cavity 500. The end of the snap-fit ​​seat 330 away from the connector 310 is provided with a mounting hole 331. The first connecting plate 340 is mounted on the end of the connector 310 and is electrically connected to the charge / discharge management circuit board. One end of the pin 350 is electrically connected to the first connecting plate 340, and the other end of the pin 350 extends into the mounting hole 331. This detailed structural design, through the coordinated operation of the connector 310, the limiting plate 320, and the snap-fit ​​connector 330, achieves precise positioning and secure installation of the connector plug 300 on the housing 200. The fit between the limiting plate 320 and the inner wall of the mounting cavity effectively prevents the plug from loosening or rotating during use. The pin 350 achieves stable electrical connection through the first connecting plate 340 and extends precisely into the mounting hole 331, ensuring alignment accuracy and contact reliability when plugged into the vehicle charging interface. This reduces arcing, overheating, or wear problems caused by poor plugging from the structural source, improving plug life and electrical safety.

[0034] like Figures 1-5As shown, in another embodiment of this utility model, the integrated charging and discharging gun further includes a locking mechanism 600. The locking mechanism 600 is disposed on the housing 200 and is used to lock the connector 300 into the charging interface of the electric vehicle. The addition of the locking mechanism 600 ensures that the charging gun can be reliably locked after being connected to the vehicle, preventing the connector from loosening or falling off due to accidental pulling, vibration, or other reasons during charging or discharging. This ensures the continuity and stability of the energy transmission process and effectively avoids safety risks such as arcing, data communication interruption, or equipment damage that may be caused by accidental disconnection of the connector in the prior art.

[0035] like Figures 1-5 As shown, in another embodiment of this utility model, the locking mechanism 600 includes a locking swing arm 610, a locking switch 620, and a button 630. A receiving cavity 210 is provided inside the housing 200. The locking swing arm 610 is rotatably connected to the receiving cavity 210 at its middle position. The locking switch 620 is disposed inside the housing 200 and located at the end of the mounting cavity near the connector 300. The output end of the locking switch 620 is drivenly connected to one end of the locking swing arm 610. The button 630 is slidably disposed on the housing 200, and one end of the button 630 abuts against the end of the locking swing arm 610 away from the locking switch 620. The locking mechanism 600 provides both manual and automatic unlocking methods through the lever linkage design of button 630, locking arm 610, and locking switch 620. When the user presses button 630, the locking arm 610 can be driven to retract through the mechanical lever principle to achieve manual unlocking. The locking switch 620 can be automatically activated under the control of the charging and discharging management circuit board (such as when charging is finished or in case of failure) to achieve electronic unlocking. This dual unlocking mechanism greatly improves the convenience and safety of use, and overcomes the limitations of a single mechanical locking structure that may not be able to unlock in time in an emergency or a single electronic locking that may fail in the event of a circuit failure.

[0036] like Figures 1-5As shown, in another embodiment of this utility model, an arc-shaped baffle 510 protrudes from the end of the mounting cavity 500 near the button 630. One end of the arc-shaped baffle 510 extends towards the connector 300, and the receiving cavity 210 is formed between the arc-shaped baffle 510 and the inner wall of the mounting cavity near the button 630. The locking swing arm 610 extends along the length of the arc-shaped baffle 510. The arc-shaped baffle 510 cleverly restricts the movement space of the locking swing arm 610 within a protected arc-shaped track, which not only provides precise guidance for the rotation of the swing arm and prevents its movement trajectory from deviating or jamming, but more importantly, it isolates the moving parts from other internal circuits, avoiding interference from mechanical parts to electrical components or potential short-circuit risks, thereby improving the reliability of the mechanism's movement and the overall internal safety of the product.

[0037] like Figures 1-5 As shown, in another embodiment of this utility model, the end of the locking arm 610 away from the button 630 extends to the outer side of the mounting cavity and is provided with a hook 611 for hooking onto the edge of the electric vehicle charging slot. The hook 611 at the end of the locking arm 610 allows it to firmly hook onto the edge of the vehicle charging interface, forming a reliable mechanical interlock. This hook-and-loop connection provides strong resistance to pull-out, ensuring that the connection remains stable even when subjected to accidental external force, greatly enhancing the overall mechanical strength of the charging connection and solving the problem that ordinary plug-in connections, which rely solely on friction for fixation, may loosen due to vibration or pulling.

[0038] like Figures 1-5 As shown, in another embodiment of this utility model, the locking switch 620 is a relay, which is electrically connected to the charge / discharge management circuit board. The contacts of the locking switch 620 abut against the end of the locking swing arm 610. Using a relay as the locking switch 620, and directly controlled by the charge / discharge management circuit board, achieves intelligent linkage between the locking state and the charging / discharging process. For example, when the circuit board detects that charging is complete, a fault occurs, or the user issues a stop command via the vehicle / APP, it can immediately control the relay to be powered off or on, driving the locking mechanism 600 to automatically unlock. This intelligent electronic unlocking enhances the safety protection of the vehicle and charging equipment, avoids the risk of plugging and unplugging under load in abnormal conditions, and improves the automation level and safety grade of the product.

[0039] like Figures 1-5As shown, in another embodiment of this utility model, the end face of the button 630 facing away from the mounting cavity is provided with anti-slip texture 631. The anti-slip texture 631 on the surface of the button 630 significantly increases the friction between the user's finger and the button 630, making pressing easier and less prone to slipping. Especially in rainy weather or when the user's hands are wet, it ensures reliable execution of emergency manual unlocking operations, improving the product's usability and safety under harsh conditions.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An integrated charging and discharging gun, characterized in that, include: Electrical plug; A housing, wherein the housing is provided with an internal mounting cavity; A connector plug is disposed at one end of the housing and is used for electrically connecting to the charging slot of an electric vehicle; A connecting plate is disposed at the other end of the housing; The connecting plate is provided with a plug hole for detachably inserting and connecting the power connector; a charging and discharging management circuit board is provided in the mounting cavity, and the charging and discharging management circuit board is provided with control contacts for switching the charging mode and discharging mode of the integrated charging and discharging gun. The control contacts are passed through the connecting plate, and the power connector is provided with a control switch for electrically connecting the control contacts. Both the connecting connector and the connecting plate are electrically connected to the charging and discharging management circuit board.

2. The integrated charging and discharging gun according to claim 1, characterized in that: The power connector includes a first male connector, a cable, and a second male connector. The first male connector and the second male connector are electrically connected through the cable. The first male connector is plugged into an external power socket, and the second male connector is detachably plugged into the socket.

3. The integrated charging and discharging gun according to claim 1, characterized in that: The housing is provided in a sleeve-shaped structure, the mounting cavity is formed in the inner ring of the housing, the connecting plug and the connecting plate are respectively installed at both ends of the housing, the end of the connecting plug extends to the outside of the mounting cavity, and the charging and discharging management circuit board is disposed in the mounting cavity and located between the connecting plug and the connecting plate.

4. The integrated charging and discharging gun according to claim 3, characterized in that: The connector includes a connector base, a limiting plate, a snap-fit ​​base, a first connecting plate, and a pin. The connector base is disposed at one end of the housing. The snap-fit ​​base is disposed at the end of the connector base away from the housing. The limiting plate is disposed between the snap-fit ​​base and the connector base. The limiting plate fits the shape of the opening edge of the mounting cavity. The snap-fit ​​base has a mounting hole at its end away from the connector base. The first connecting plate is mounted on the end of the connector base. One end of the pin is electrically connected to the first connecting plate, and the other end of the pin extends into the mounting hole.

5. The integrated charging and discharging gun according to claim 3, characterized in that: The integrated charging and discharging gun also includes a locking mechanism, which is disposed on the housing and used to lock the connector plug into the charging interface of the electric vehicle.

6. The integrated charging and discharging gun according to claim 5, characterized in that: The locking mechanism includes a locking arm, a locking switch, and a button. A receiving cavity is provided inside the housing. The locking arm is rotatably connected to the receiving cavity at its middle position. The locking switch is disposed inside the housing and located at the end of the mounting cavity near the connector. The output end of the locking switch is drivenly connected to one end of the locking arm. The button is slidably disposed on the housing, and one end of the button abuts against the end of the locking arm away from the locking switch.

7. The integrated charging and discharging gun according to claim 6, characterized in that: An arc-shaped baffle is provided at the end of the mounting cavity near the button. One end of the arc-shaped baffle extends toward the connector. The arc-shaped baffle and the inner wall of the mounting cavity near the button form the receiving cavity. The locking swing arm extends along the length of the arc-shaped baffle.

8. The integrated charging and discharging gun according to claim 6, characterized in that: The end of the locking arm away from the button extends to the outside of the mounting cavity and is provided with a hook for engaging the edge of the electric vehicle charging slot.

9. The integrated charging and discharging gun according to claim 6, characterized in that: The locking switch is a relay, and the locking switch is electrically connected to the charge and discharge management circuit board. The contacts of the locking switch abut against the end of the locking swing arm.

10. The integrated charging and discharging gun according to claim 6, characterized in that: The button has anti-slip texture on its end face facing away from the mounting cavity.

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