A novel integrated discharge device

Abstract

The application discloses a novel integrated discharge device, comprising a gun body shell, a support arranged in the gun body shell, a discharge monitoring and protection PCBA board fixed on the support, an integrated three-socket and its cable assembly located at the rear part of the gun body shell, and a terminal cable assembly extending to the front end area of the gun body shell. A gun head is arranged at the front end of the device, power terminal assemblies and signal terminals are integrated in the gun head, and are fixed through a terminal pressing plate. The discharge monitoring and protection PCBA board is used for real-time monitoring and protection of voltage, current, temperature and electric leakage of a discharge circuit led out by the power terminal assemblies and the signal terminals, so that safe control of external discharge process is realized. The gun head, the monitoring and protection module and the integrated three-socket are integrated in the same gun body structure, a compact functional assembly is formed, the device has the advantages of high structural integration, simple wiring, high assembly efficiency and strong use safety, and is suitable for new energy automobile external discharge scenes.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle charging, specifically to a novel integrated discharge device. Background Technology

[0002] With the rapid global adoption of new energy vehicles, vehicle-to-load (V2L) technology has become a widely discussed area of ​​technology in recent years. By providing AC or DC power to external devices via the vehicle's battery, users can obtain stable power support in scenarios such as camping, outdoor work, emergency rescue, and powering portable home appliances, thus significantly expanding the application value of new energy vehicles. To achieve V2L functionality, external discharge devices such as discharge guns, discharge adapters, or integrated power strips are commonly used to connect to the vehicle's V2L interface, enabling the safe output of electrical energy to user devices.

[0003] Most existing external discharge devices have a modular structure, meaning the discharge nozzle, monitoring and protection circuit, and power strip module are assembled in separate housings and with separate wiring. This type of structure typically requires multiple cables connected in series, which not only occupies a lot of space and is inconvenient to carry, but also, due to the long cables and numerous connection points, is more prone to loosening, poor contact, and decreased insulation performance in humid, dusty, or vibrating environments. Furthermore, the monitoring and protection module of traditional external discharge devices is often separate from the power strip or adapter, making it impossible to sample the power output at the nozzle in real time. This results in anomalies such as overvoltage, overcurrent, overtemperature, or leakage not being responded to in a timely manner, potentially posing safety hazards.

[0004] Furthermore, in real-world applications, external discharge guns often require frequent plugging and unplugging, making them susceptible to mechanical impacts, rain immersion, and foreign object intrusion at the nozzle tip. Existing products generally lack robust sealing structures and protective designs, leading to easy contamination of internal power and signal terminals, affecting conductivity and even causing discharge failure. Existing products also lack effective methods for displaying indicator light signals. In bright outdoor light or low-light conditions, users cannot intuitively determine the operating status of the external discharge device, thus impacting the user experience.

[0005] Furthermore, the discrete internal structure of traditional discharge devices, along with the complex layout of monitoring, control, and power circuits, leads to high assembly difficulty, high production costs, and difficulty in controlling quality consistency. At the same time, the independent packaging of multiple modules occupies a large volume, making it difficult to meet the requirements of limited vehicle storage space, lightweight design, and portability.

[0006] In summary, existing external discharge devices generally suffer from the following technical defects:

[0007] (1) The structure is scattered, the cables are long and inconvenient to carry;

[0008] (2) Insufficient waterproof and dustproof performance; power terminals and signal terminals are easily contaminated.

[0009] (3) The status of the indicator lights is not easy to observe, and users cannot know the working status of the equipment in real time;

[0010] (4) The internal components are complex to assemble, costly, and lack stability;

[0011] (5) The overall volume is large, making it difficult to achieve highly integrated and modular design. Summary of the Invention

[0012] To address the aforementioned problems, this invention provides a novel integrated discharge device with a more compact structure, timely monitoring and protection response, stronger sealing, user-friendly operation, and ease of assembly and portability, thereby resolving the issues existing in the prior art.

[0013] This invention is achieved through the following technical solution: a novel integrated discharge device, characterized in that it comprises:

[0014] Gun casing;

[0015] A bracket is disposed inside the gun body housing;

[0016] The discharge monitoring and protection PCBA board is fixedly mounted on the bracket.

[0017] An integrated three-socket is fixedly installed on the bracket, and the integrated three-socket is electrically connected to the discharge monitoring and protection PCBA board through an integrated three-socket cable assembly;

[0018] A terminal cable assembly, one end of which is crimped to a power terminal assembly and a signal terminal, and the other end of which is soldered to the discharge monitoring and protection PCBA board;

[0019] The gun head is installed at the front end of the gun body housing, and the power terminal assembly and the signal terminal are provided inside the gun head;

[0020] A terminal pressure plate is disposed inside the gun head and presses down the power terminal assembly and the signal terminal;

[0021] The discharge monitoring and protection PCBA board is located between the power terminal assembly and the integrated three-socket, and is used to detect voltage, current, temperature and leakage current of the discharge circuit introduced through the power terminal assembly. When the detected parameters exceed the safety threshold, the control circuit enters the protection state and cuts off the power output, so that the gun head, the discharge monitoring and protection PCBA board and the integrated three-socket constitute an integrated functional component in the gun body housing.

[0022] As a preferred technical solution, the bracket is provided with a mounting part for installing a sealing gasket. The sealing gasket is disposed in the mounting part, and the bracket sealing gasket pressure plate presses the sealing gasket and is fixedly connected to the bracket to improve the sealing performance of the functional component in the gun body housing.

[0023] As a preferred technical solution, the functional components include the discharge monitoring and protection PCBA board, the integrated three-socket cable assembly, the terminal cable assembly, and the integrated three-socket. The integrated three-socket cable assembly connects the integrated three-socket to the discharge monitoring and protection PCBA board, and the terminal cable assembly connects the discharge monitoring and protection PCBA board to the power terminal assembly and the signal terminal, forming a centralized wiring structure.

[0024] As a preferred technical solution, the front end of the gun head is provided with an annular groove, and a sealing ring is assembled in the annular groove and sealed with the front port of the gun body shell;

[0025] The terminal pressure plate is fixedly connected to the gun head by pressure plate fixing screws. The pressure plate fixing screws pass through the gun head and are threaded to the terminal pressure plate to fix the terminal pressure plate inside the gun head and press the power terminal assembly and the signal terminal.

[0026] As a preferred technical solution, a gun head protective cover is provided on the outside of the gun head, and a socket protective cover is provided on the gun body shell corresponding to the integrated three-socket, which are used to protect the gun head and the integrated three-socket from dust, moisture and mechanical collision when not in operation.

[0027] As a preferred technical solution, a light guide component is welded onto the gun body shell. The inner end of the light guide component corresponds to the position of the indicator light on the discharge monitoring and protection PCBA board, and the outer end protrudes from the gun body shell, thereby realizing external visual indication of the indicator light status.

[0028] As a preferred technical solution, the terminal cable assembly includes multiple conductor bundles, which are respectively crimped to the power terminal assembly and the signal terminal;

[0029] The discharge monitoring and protection PCBA board realizes real-time protection of the discharge circuit based on the voltage, current, temperature and leakage detection signals transmitted on the terminal cable assembly.

[0030] As a preferred technical solution, the gun head is fixedly connected to the bracket and the gun body housing by a gun head fixing screw. The gun head fixing screw passes through the gun head and the gun body housing in sequence and is threaded to the bracket.

[0031] As a preferred technical solution, the sealing gasket is placed between the bracket and the gun body housing, and is pressed and fixed by the bracket sealing gasket pressure plate. Together with the sealing ring, the gun head protective cover and the socket protective cover, a multi-level sealing system is formed from the gun head to the integrated three sockets.

[0032] As a preferred technical solution, the discharge monitoring and protection PCBA board includes a voltage detection circuit, a current detection circuit, a temperature detection circuit, and a leakage current detection circuit;

[0033] When the detected parameters exceed the safety threshold, the discharge monitoring and protection PCBA board control circuit enters the protection state and cuts off the power output, while simultaneously issuing an alarm prompt through the indicator light corresponding to the light guide component.

[0034] The beneficial effects of this invention are as follows: First, by integrating the gun head, discharge monitoring and protection PCBA board, integrated three-socket, and their cable assembly into a single unit using a bracket, the problems of excessive cable length and connection points caused by the dispersed arrangement of modules in traditional external discharge devices are effectively reduced. This structure makes the power transmission path more compact and reliable, reduces voltage loss and the risk of poor contact, while also reducing the overall size, improving portability, and meeting the needs of small vehicle storage spaces.

[0035] Secondly, the discharge monitoring and protection PCBA board of this invention is arranged inside the gun body and directly connected to the power terminal assembly and signal terminals, enabling real-time acquisition of voltage, current, temperature, and leakage data at the discharge end, achieving rapid response to the discharge process. When abnormal states such as overvoltage, overcurrent, overtemperature, or leakage occur, this invention can promptly cut off or limit the output by controlling the switching device, resulting in a faster response speed than traditional split-type protection devices and greatly improving the safety during use.

[0036] Furthermore, this invention incorporates a sealing ring at the transition between the nozzle and the body, a sealing gasket and a pressure plate between the bracket and the body, and further constructs a multi-level sealing structure through the nozzle protective cover and the socket protective cover, effectively preventing moisture, dust, and foreign objects from entering the device. This multi-layered protection system enhances the stability of the power terminal components and signal terminals.

[0037] In addition, by welding and setting light guide components, the present invention enables the indicator light on the discharge monitoring and protection PCBA board to be efficiently transmitted from the outside of the gun body housing, allowing users to intuitively read the working status and abnormal prompts of the device even in strong or weak light environments, thereby improving the convenience of operation and the ability to confirm safety.

[0038] Meanwhile, this invention employs a modular assembly method for functional components, resulting in an orderly internal structure, simplified cable arrangement, and reduced assembly steps, which is beneficial for mass production and product consistency control. The compact overall structure not only reduces manufacturing costs but also improves product stability and reliability.

[0039] Finally, by integrating the gun head, wiring, monitoring and protection module, and power strip components into a single integrated gun body structure, this invention avoids the problems of inconvenience in carrying, easy damage, and messy cables caused by the separation of modules in traditional external discharge devices, providing users with a better user experience and making the external discharge function of new energy vehicles easier to promote and popularize. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the exploded structure of the present invention;

[0042] Figure 2 This is a schematic diagram of the overall structure of the present invention. Detailed Implementation

[0043] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0044] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0045] like Figure 1 and Figure 2As shown, this embodiment provides a novel integrated discharge device. The device is a handheld structure, mainly comprising a gun housing 8, a bracket 12 disposed inside the gun housing 8, a discharge monitoring and protection PCBA board 10 fixed on the bracket 12, an integrated three-socket cable assembly 11 and an integrated three-socket 15 electrically connected to the discharge monitoring and protection PCBA board 10, a terminal cable assembly 7 electrically connected to the discharge monitoring and protection PCBA board 10 and extending towards the gun head, a gun head 2 installed at the front end of the gun housing 8, and a power terminal assembly 6 arranged inside the gun head 2. The signal terminal 5, the terminal pressure plate 4 for holding the power terminal assembly 6 and the signal terminal 5, and the sealing gasket 13, the bracket sealing gasket pressure plate 14, the sealing ring 3, the gun head protective cover 1 and the socket protective cover 16 for sealing and protection, also include the light guide part 9 welded and fixed to the gun body housing 8, and the pressure plate fixing screw 19 and the gun head fixing screw 20 for fixing the terminal pressure plate 4 and the gun head 2. Through the structural cooperation and assembly relationship of the above components, the functional component 17 is formed and realizes the electrical connection, mechanical support, sealing protection and status indication functions of the whole machine.

[0046] In terms of specific structure, the gun body housing 8 can be injection molded from engineering plastic material with good insulation performance and certain mechanical strength. Its interior has a mounting cavity along the length direction to accommodate the bracket 12 and the functional component 17. The rear area of ​​the gun body housing 8 has a reserved mounting window that matches the integrated three-socket 15. The periphery of the mounting window is provided with a slot or mounting hole for mounting the socket protective cover 16, so that the socket protective cover 16 can be reliably connected to the gun body housing 8 by means of buckles or screws. The front end of the gun body housing 8 forms a gun head mounting port. The end face of the mounting port is formed into an annular pressing surface that cooperates with the front sealing ring 3 of the gun head 2. It is used to apply axial pressing force to the sealing ring 3 after assembly to achieve front end sealing.

[0047] The gun body housing 8 also has a pre-drilled mounting hole or opening for the light guide component 9. The light guide component 9 is fixed in this position by welding, bonding or embedding. The inner end of the light guide component 9 is aligned with the indicator light position set on the discharge monitoring and protection PCBA board 10, and the outer end is flush with or slightly protrudes from the outer surface of the gun body housing 8, so that the user can directly observe the light signal transmitted by the indicator light from the outside.

[0048] The bracket 12 is preferably made of high-strength engineering plastic material. Its cross-section can be designed as a frame structure or a plate structure according to the shape of the cavity inside the gun housing 8. The bracket 12 has multiple mounting holes or mounting steps for fixing the discharge monitoring and protection PCBA board 10, the bracket sealing gasket pressure plate 14, and other related components. One end or the middle of the bracket 12 has a reserved mounting position for the sealing gasket 13. This mounting position is an annular or frame-shaped groove structure. After the sealing gasket 13 is embedded in the mounting position, it is pressed tightly from above by the bracket sealing gasket pressure plate 14. The bracket sealing gasket pressure plate 14 is fixedly connected to the bracket 12 by screws, so that the sealing gasket 13 is reliably limited in both the axial and radial directions. After assembly, the sealing gasket 13 contacts the inner wall of the gun housing 8 or the vehicle mounting surface, forming a sealing barrier between the functional component 17 and the outside world, improving the overall waterproof and dustproof performance.

[0049] The discharge monitoring and protection PCBA board 10 is installed in a predetermined position on the bracket 12 and is usually fixed by screws, clips or positioning posts so that it can maintain a stable installation state under long-term use and external vibration.

[0050] The discharge monitoring and protection PCBA board 10 is equipped with several terminals, connectors, and circuit units for voltage detection, current detection, temperature detection, and leakage current detection. These circuit units, when connected to the terminal cable assembly 7 and the integrated three-socket cable assembly 11, can monitor the entire discharge circuit in real time.

[0051] One end of the integrated three-socket cable assembly 11 is fixed to the terminal of the integrated three-socket 15 by welding or crimping, and the other end is electrically connected to the output or interface end of the discharge monitoring and protection PCBA board 10 through plug-in terminals or pads, realizing the power output path from the discharge monitoring and protection PCBA board 10 to the integrated three-socket 15. The terminal cable assembly 7 consists of multiple wire bundles, one end of which is crimped to the tail end of the power terminal assembly 6 and the signal terminal 5 respectively, and the other end is connected to the input end, detection end or control end of the discharge monitoring and protection PCBA board 10 through connectors or pads, so that the power and control signals from the vehicle side can be transmitted to the discharge monitoring and protection PCBA board 10 through the terminal cable assembly 7, and then detected, processed and output to the integrated three-socket 15 by the discharge monitoring and protection PCBA board 10.

[0052] In the structural design of the gun head 2, the gun head 2 is preferably made of a material that is resistant to high temperature and wear and has good insulation properties, and is injection molded or molded. The internal cavity structure is formed to accommodate the power terminal assembly 6 and the signal terminal 5, and the cavity is provided with positioning steps or screw holes for installing the terminal pressure plate 4. An annular groove is formed on the outer periphery of the front end of the gun head 2 along the circumferential direction. The sealing ring 3 is assembled in the annular groove. The sealing ring 3 can be made of aging-resistant rubber or elastic material. After the gun head 2 is assembled to the front port of the gun body housing 8 and fixed to the bracket 12 and the gun body housing 8 by the gun head fixing screw 20, the pressing surface of the front port of the gun body housing 8 will apply a pressing force to the sealing ring 3, so that the sealing ring 3 will produce elastic deformation in both the radial and axial directions, thereby forming a reliable sealing interface between the gun head 2 and the gun body housing 8, preventing moisture and dust from entering the interior along the joint surface.

[0053] The power terminal assembly 6 and signal terminal 5 are located inside the nozzle head 2, typically arranged along the same axis or at relatively fixed intervals. The power terminal assembly 6 carries the main discharge current and is matched to the power interface on the vehicle side to ensure good conductivity and heat resistance during external discharge. The signal terminal 5 transmits control signals, detection signals, or communication signals, enabling the discharge monitoring and protection PCBA board 10 to obtain real-time status information from the vehicle or load side. Multiple wire bundles of the terminal cable assembly 7 are crimped to the tail ends of the power terminal assembly 6 and signal terminal 5. Crimping methods include cold-pressing terminals, soldering, or other reliable connection methods to ensure sufficient mechanical strength and conductivity between the wires and terminals. After crimping, the power terminal assembly 6 and signal terminal 5 are assembled into corresponding openings or limiting slots in the terminal pressure plate 4, which presses them together from the back, stably fixing them in designated positions inside the nozzle head 2.

[0054] During the assembly process, firstly as follows Figure 1 As shown, the sealing gasket 13 is assembled with the bracket sealing gasket pressure plate 14, that is, the sealing gasket 13 is embedded in the mounting part of the bracket 12, and then the bracket sealing gasket pressure plate 14 is placed on top of the sealing gasket 13. The bracket sealing gasket pressure plate 14 is fixed to the bracket 12 with screws, so that the sealing gasket 13 is reliably pressed to form the first sealing structure.

[0055] Subsequently, one end of the integrated three-socket cable assembly 11 is fixedly connected to the terminal of the integrated three-socket 15, and assembled together with the discharge monitoring and protection PCBA board 10 on the bracket 12. The discharge monitoring and protection PCBA board 10 is locked in the mounting position of the bracket 12 by screws or clips, so that the electrical connection between the integrated three-socket cable assembly 11 and the discharge monitoring and protection PCBA board 10 is completed.

[0056] At the same time, the signal terminal 5 and the power terminal assembly 6 are respectively crimped to the corresponding wires of the terminal cable assembly 7. After ensuring that the crimping is firm, the power terminal assembly 6 and the signal terminal 5 are assembled onto the terminal pressure plate 4, so that they are respectively snapped into the limiting opening of the terminal pressure plate 4. Then, the terminal pressure plate 4 and the terminal cable assembly 7 are connected together to the corresponding interface positions of the discharge monitoring and protection PCBA board 10. At this time, the integrated three-socket cable assembly 11 and the terminal cable assembly 7 are both connected to the discharge monitoring and protection PCBA board 10, forming the functional component 17, realizing the complete path of circuit conduction and signal transmission.

[0057] After the functional component 17 is assembled on the bracket 12, the functional component 17 is assembled into the internal cavity of the gun body housing 8, so that the bracket 12 matches the positioning structure of the inner wall of the gun body housing 8, and the sealing gasket 13 fits into the corresponding position of the gun body housing 8, thereby forming a reliable seal and support between the functional component 17 and the gun body housing 8.

[0058] Subsequently, the sealing ring 3 is installed into the annular groove at the front end of the gun head 2. Then, the terminal pressure plate 4, which is pre-installed with the power terminal assembly 6 and the signal terminal 5 and connected to the terminal cable assembly 7, is assembled into the inside of the gun head 2. The terminal pressure plate is fixed in the gun head and pressed against the power terminal assembly and the signal terminal by passing through the gun head and threading the pressure plate fixing screw.

[0059] Next, the gun head 2 is assembled onto the front end of the gun body housing 8, so that the rear end of the gun head 2 fits against the front end of the gun body housing 8. At the same time, the sealing ring 3 contacts the pressing surface of the front end of the gun body housing 8. The gun head fixing screw 20 passes through the front mounting hole of the gun body housing 8 and engages with the threaded hole on the bracket 12 to lock it in place, thus firmly connecting the gun head 2, the bracket 12 and the gun body housing 8 into one unit. During the screw tightening process, the sealing ring 3 is axially compressed, thereby achieving a seal between the gun head 2 and the gun body housing 8.

[0060] The light guide component 9 has been fixed to the position of the indicator light on the discharge monitoring and protection PCBA board 10 of the gun body housing 8 by welding. When the indicator light on the discharge monitoring and protection PCBA board 10 is lit or flashing, the light is directed out through the light guide component 9. The user can then visually observe the light signals of different colors or different flashing patterns on the outside of the gun body housing 8 to determine the working status or fault information of the device.

[0061] After all electrical and mechanical assemblies are completed, the gun head protective cover 1 is finally assembled onto the outside of the gun head 2. The gun head protective cover 1 can adopt a flip-top, sliding cover or snap-on structure, and is used to cover the outside of the gun head 2 when the discharge function is not in use, so as to protect the power terminal assembly 6 and the signal terminal 5 from dust, water and impact.

[0062] Simultaneously, the socket protective cover 16 is assembled on the rear of the gun body housing 8, corresponding to the integrated three-socket 15. When closed, the socket protective cover 16 covers the integrated three-socket 15 to prevent foreign objects from entering the socket hole. When an external load is needed, the user opens the socket protective cover 16 and inserts the electrical plug into the integrated three-socket 15 to obtain external discharge energy. Through the above structural design and assembly steps, this embodiment of the novel integrated discharge device achieves a centralized arrangement of discharge monitoring and protection functions while ensuring a compact overall size and easy portability, achieving good sealing protection and operational safety.

[0063] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A novel integrated discharge device, characterized in that, include: Gun casing (8); A bracket (12) is disposed inside the gun body housing (8); The discharge monitoring and protection PCBA board (10) is fixedly installed on the bracket (12); An integrated three-socket (15) is fixedly installed on the bracket (12), and the integrated three-socket (15) is electrically connected to the discharge monitoring and protection PCBA board (10) through the integrated three-socket cable assembly (11); Terminal cable assembly (7), one end of which is crimped to power terminal assembly (6) and signal terminal (5), and the other end is soldered to the discharge monitoring and protection PCBA board (10). The gun head (2) is installed at the front end of the gun body housing (8), and the power terminal assembly (6) and the signal terminal (5) are provided inside the gun head (2). Terminal pressure plate (4) is disposed inside the gun head (2) and presses the power terminal assembly (6) and the signal terminal (5); The discharge monitoring and protection PCBA board (10) is located between the power terminal assembly (6) and the integrated three-socket (15) for detecting voltage, current, temperature and leakage current in the discharge circuit introduced through the power terminal assembly (6). When the detected parameters exceed the safety threshold, the control circuit enters the protection state and cuts off the power output, so that the gun head (2), the discharge monitoring and protection PCBA board (10) and the integrated three-socket (15) form an integrated functional component (17) in the gun body housing (8).

2. The novel integrated discharge device according to claim 1, characterized in that: The bracket (12) is provided with a mounting part for installing a sealing gasket (13). The sealing gasket (13) is disposed in the mounting part. The bracket sealing gasket pressure plate (14) presses the sealing gasket (13) and is fixedly connected to the bracket (12) to improve the sealing performance of the functional component (17) in the gun body housing (8).

3. The novel integrated discharge device according to claim 1, characterized in that: The functional component (17) includes the discharge monitoring and protection PCBA board (10), the integrated three-socket cable assembly (11), the terminal cable assembly (7), and the integrated three-socket (15). The integrated three-socket cable assembly (11) connects the integrated three-socket (15) to the discharge monitoring and protection PCBA board (10), and the terminal cable assembly (7) connects the discharge monitoring and protection PCBA board (10) to the power terminal assembly (6) and the signal terminal (5), forming a centralized wiring structure.

4. The novel integrated discharge device according to claim 1, characterized in that: The front end of the gun head (2) is provided with an annular groove, and the sealing ring (3) is assembled in the annular groove and seals with the front port of the gun body shell (8); The terminal pressure plate (4) is fixedly connected to the gun head (2) by a pressure plate fixing screw (19). The pressure plate fixing screw (19) passes through the gun head (2) and is threaded to the terminal pressure plate (4) to fix the terminal pressure plate (4) inside the gun head (2) and press the power terminal assembly (6) and the signal terminal (5).

5. The novel integrated discharge device according to claim 1, characterized in that: A gun head protective cover (1) is provided on the outside of the gun head (2), and a socket protective cover (16) is provided on the gun body shell (8) corresponding to the integrated three-socket (15), which are used to protect the gun head (2) and the integrated three-socket (15) from dust, water vapor and mechanical collision when they are not in operation.

6. The novel integrated discharge device according to claim 1, characterized in that: A light guide component (9) is welded onto the gun body housing (8). The inner end of the light guide component (9) corresponds to the position of the indicator light on the discharge monitoring and protection PCBA board (10), and the outer end protrudes from the gun body housing (8), thereby realizing external visual prompts of the indicator light status.

7. The novel integrated discharge device according to claim 1, characterized in that: The terminal cable assembly (7) includes multiple conductor bundles, which are respectively crimped to the power terminal assembly (6) and the signal terminal (5); The discharge monitoring and protection PCBA board (10) realizes real-time protection of the discharge circuit based on the voltage, current, temperature and leakage detection signals transmitted on the terminal cable assembly (7).

8. The novel integrated discharge device according to claim 1, characterized in that: The gun head (2) is fixedly connected to the bracket (12) and the gun body housing (8) by the gun head fixing screw (20). The gun head fixing screw (20) passes through the gun head (2) and the gun body housing (8) in sequence and is threaded to the bracket (12).

9. The novel integrated discharge device according to claim 1, characterized in that: The sealing gasket (13) is placed between the bracket (12) and the gun body housing (8), and is pressed and fixed by the bracket sealing gasket pressure plate (14). Together with the sealing ring (3), the gun head protective cover (1) and the socket protective cover (16), it forms a multi-level sealing system from the gun head (2) to the integrated three sockets (15).

10. The novel integrated discharge device according to claim 1, characterized in that: The discharge monitoring and protection PCBA board (10) includes a voltage detection circuit, a current detection circuit, a temperature detection circuit, and a leakage current detection circuit; When the detection parameters exceed the safety threshold, the control circuit of the discharge monitoring and protection PCBA board (10) enters the protection state and cuts off the power output, and at the same time issues an alarm prompt through the indicator light corresponding to the light guide component (9).

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