A new type of automobile charging seat drainage nozzle connecting device

Abstract

The utility model discloses a novel automobile charging seat drainage nozzle connecting device, including quick joint and drainage nozzle joint, the drainage nozzle joint is inclinedly connected in the bottom of quick joint, when quick joint horizontal direction is established, the projection angle of the central axis of drainage nozzle joint and quick joint central axis on vertical plane is -30 degrees, the projection angle of the central axis of drainage nozzle joint and quick joint central axis on horizontal plane is 15 degrees or -15 degrees, the top of quick joint is formed with the clamping slot, the inside of clamping slot is formed with the drainage groove, the inner chamber of drainage groove is linked together with drainage nozzle joint inner chamber, the inner wall of clamping slot is equipped with the buckle structure symmetrically, the rubber pad with drainage hole is located in the clamping slot, the rubber pad is laid on the brim of drainage groove 4, and the drainage hole is linked together with the drainage groove. The utility model discloses simple structure, and it is easy to operate, improves the stability of connection and production efficiency, ensures that the drainage is smooth and efficient, and reduces the water accumulation residual.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a novel automotive charging dock drain nozzle connection device. Background Technology

[0002] Currently, the drainage pipe system of electric vehicle charging stations generally uses a direct connection with rubber hoses. This traditional connection method has many shortcomings in practical applications that urgently need improvement: 1. Poor assembly processability: The connection between the rubber hose and the drain outlet of the charging base requires a large assembly force, and the narrow installation space severely restricts the ease of operation, resulting in difficult assembly, excessive time consumption, and directly affecting the efficiency of the production line.

[0003] 2. Insufficient connection reliability: Existing connection methods are difficult to ensure proper assembly. Insufficient insertion depth or uneven force can easily cause the connection to loosen, posing a risk of pipe detachment and water leakage.

[0004] 3. Unstable sealing performance: The sealing effect relies excessively on the elastic deformation of the hose and the assembly precision of the operator, making it difficult to guarantee consistent quality and easily leading to leakage problems caused by poor sealing.

[0005] 4. Poor long-term durability: Rubber materials are prone to aging and deformation due to temperature changes during long-term use, which in turn increases the risk of loose connections and seal failure.

[0006] To address the aforementioned issues, it is imperative to systematically optimize and improve the existing charging dock drainage pipe connection method in order to enhance assembly efficiency and ensure long-term reliability. Utility Model Content

[0007] This utility model addresses the technical problems of low assembly efficiency, poor connection reliability, and poor sealing in existing car charger drain pipe connection methods by providing a novel car charger drain nozzle connection device.

[0008] To achieve the above objectives, this utility model provides the following technical solution: A novel car charger drain nozzle connection device includes a quick-connect connector and a drain nozzle connector. The drain nozzle connector is obliquely connected to the bottom of the quick-connect connector. When the quick-connect connector is horizontally oriented, the angle between the projection of the central axis of the drain nozzle connector and the central axis of the quick-connect connector onto the vertical plane is -30 degrees, and the angle between the projection of the central axis of the drain nozzle connector and the central axis of the quick-connect connector onto the horizontal plane is 15 degrees or -15 degrees. A slot is formed at the top of the quick-connect connector, and a drain groove is formed inside the slot. The inner cavity of the drain groove is connected to the inner cavity of the drain nozzle connector. A snap-fit ​​structure is symmetrically provided on the inner wall of the slot. A rubber pad with a drain hole is provided inside the slot and is laid on the edge of the drain groove. The drain hole is connected to the drain groove.

[0009] Furthermore, the quick-release connector and the drain nozzle connector are integrally formed.

[0010] Furthermore, the outer wall of the drain nozzle connector is provided with a limiting groove along the circumferential direction.

[0011] Furthermore, the end of the drain nozzle connector is inverted conical.

[0012] Furthermore, the bottom of the quick-release connector is provided with a connecting seat, and the drain nozzle connector is vertically connected to the side of the connecting seat.

[0013] Furthermore, the drainage hole of the rubber pad is a square hole.

[0014] Furthermore, the drainage holes of the rubber pad are surrounded by anti-siphon ripples.

[0015] Furthermore, the rubber pad and the slot are interference-fitted.

[0016] Furthermore, the connecting device is symmetrically configured in two parts. The central axis of one drain nozzle connector and the central axis of the quick-lock connector are projected at an angle of 15 degrees on the horizontal plane, and the central axis of the other drain nozzle connector and the central axis of the quick-lock connector are projected at an angle of -15 degrees on the horizontal plane. The ends of the two drain nozzle connectors that are away from the quick-lock connector are close to each other.

[0017] Furthermore, the cross-section of the quick-connect connector is gourd-shaped.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: The novel car charger drain nozzle connection device provided by this utility model solves the inherent defects of the hose connection method and has the following advantages: 1. Optimized assembly process: The present invention features a drain nozzle connection structure that is easy to operate and quick to assemble, which significantly improves assembly efficiency and reduces operational difficulty.

[0019] 2. Enhanced connection reliability: The drain nozzle connection structure of this utility model ensures a firm, stable, and non-loose connection between the connector and the charging base.

[0020] 3. Improved sealing performance: This utility model provides a stable and reliable sealing solution, effectively preventing leakage.

[0021] 4. Improve overall performance and consistency: Enhance the overall quality, reliability, and service life of the drainage system, and ensure consistent product performance.

[0022] 5. Optimize pipeline layout and drainage performance: Improve the installation condition of drainage pipes and eliminate bending stress; increase the layout angle of drainage pipes to ensure smooth and efficient drainage and reduce water accumulation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 Schematic diagram of the structure of the novel car charger drain nozzle connection device provided in this embodiment of the utility model Figure 1 .

[0025] Figure 2 Schematic diagram of the structure of the novel car charger drain nozzle connection device provided in this embodiment of the utility model Figure 2 .

[0026] Figure 3 A connection and installation diagram of the novel car charger drain nozzle connection device provided for an embodiment of this utility model.

[0027] Explanation of reference numerals in the attached figures: 1-Quick-lock connector, 2-Drain nozzle connector, 3-Card slot, 4-Drain groove, 5-Snap-on structure, 6-Drain hole, 7-Rubber pad, 8-Limiting groove, 9-Connecting seat, 10-Anti-siphon corrugated pattern. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] like Figure 1-3 As shown.

[0030] This utility model provides a novel car charger drain nozzle connection device, including a quick-connect connector 1 and a drain nozzle connector 2. The drain nozzle connector 2 is inclinedly connected to the bottom of the quick-connect connector 1. In a preferred embodiment, the bottom of the quick-connect connector 1 is provided with a connecting seat 9, and the drain nozzle connector 2 is vertically connected to the side of the connecting seat 9. Specifically, when the quick-connect connector 1 is set in the horizontal direction, the projection angle between the central axis of the drain nozzle connector 2 and the central axis of the quick-connect connector 1 on the vertical plane is -30 degrees, and the projection angle between the central axis of the drain nozzle connector 2 and the central axis of the quick-connect connector 1 on the horizontal plane is 15 degrees or -15 degrees. This solution adds a fixed tilt angle of 30° in the horizontal direction of the connector. This design directly increases the natural tilt angle of the drain pipe leading out of the charger, significantly improving drainage efficiency and smoothness by utilizing gravity, and effectively reducing the risk of poor drainage and water accumulation. To accommodate installation requirements on different sides of the vehicle charging dock (e.g., left and right sides), this solution offers two product configurations: one with the connector front rotated 15° clockwise, and the other with the connector front rotated 15° counterclockwise. These two configurations are not simply identical products but rather mirror images of each other. This mirror rotation design ensures that the connected water pipes can be arranged closer to their natural curvature when installed in different positions on the vehicle. This avoids the excessive bending of the water pipes caused by unsuitable angles in the original structure, effectively eliminating stress concentration at bend points. Reducing stress concentration significantly lowers the risk of water pipe rupture or leaks at the joints due to long-term fatigue, extending the service life of the entire drainage system and ensuring optimal water pipe arrangement angles regardless of whether the connector is installed on the left or right side of the vehicle charging dock.

[0031] The top of the fast card connector 1 has a slot 3, and the inside of the slot 3 has a drainage groove 4. The inner cavity of the drainage groove 4 is connected to the inner cavity of the drain nozzle connector 2. The connector has a specific drainage channel and groove inside to guide the smooth drainage of condensate or accidentally entered liquid in the charging socket. This groove structure ensures that the water flow path is unobstructed and avoids stagnation.

[0032] The inner wall of the slot 3 is symmetrically provided with a snap-fit ​​structure 5, which can directly and quickly engage and lock with the mechanism preset on the outer edge of the drain port of the charging base. This design abandons the traditional rubber tube connection method and realizes quick assembly and disassembly with one click or simple press.

[0033] The slot 3 is equipped with a rubber gasket 7 with drainage holes 6, which is laid on the edge of the drainage groove 4. The drainage holes 6 are connected to the drainage groove 4. A sealing rubber gasket with drainage holes is integrated at the mating end face (or axial contact surface) of the connector and the drain port of the charging base. When the snap-fit ​​structure tightly locks the connector and the charging base, the rubber gasket is uniformly compressed to form a reliable end face seal, effectively preventing liquid leakage from the connection.

[0034] In a preferred embodiment, the quick-connect coupling 1 and the drain nozzle coupling 2 are integrally formed. This integral forming avoids the leakage problems caused by assembly gaps or loose threads in traditional split couplings. Furthermore, the high material consistency prevents deformation or cracking caused by thermal expansion and contraction of couplings made of different materials. After the quick-connect coupling and drain nozzle coupling are integrated, connection / disconnection can be completed without additional tools, significantly improving operational efficiency. During maintenance, the entire assembly can be disassembled directly, avoiding the loss or misinstallation of parts due to the scattering of components in split couplings. In addition, the integrated flow channel design reduces internal turbulence and pressure drop, ensuring smoother drainage or fluid transmission.

[0035] In a preferred embodiment, the outer wall of the drain nozzle connector 2 is provided with a limiting groove 8 along the circumference to achieve quick locking and prevent the hose from accidentally loosening from the connector.

[0036] In a preferred embodiment, the end of the drain nozzle connector 2 is inverted conical in shape to facilitate the insertion of the hose.

[0037] In a preferred embodiment, the drain hole 6 of the rubber pad 7 is surrounded by anti-siphon corrugations 10. These corrugations disrupt the continuity of water flow, preventing a vacuum from forming between the rubber pad and the contact surface during drainage due to siphoning. This ensures smooth drainage and allows the rubber pad to quickly return to its original position, preventing accidental over-tightening. The corrugated structure also guides water flow towards the drain hole, reducing water residue. Furthermore, the corrugated design provides elastic deformation space under pressure, maintaining the rubber pad's seal (e.g., anti-slip and leak-proof) while releasing pressure through corrugation during drainage.

[0038] In a preferred embodiment, the drainage hole 6 of the adhesive pad 7 is a square hole. When the square hole is combined with the surrounding corrugated folds, it can more effectively disrupt the siphon effect of water flow (the right-angled edge disturbs the water flow more strongly than the round hole), preventing the adhesive pad from adhering to the flat surface and being difficult to peel off.

[0039] In a preferred embodiment, the rubber pad 7 and the slot 3 are interference-fitted. This design effectively avoids the risk of the rubber pad accidentally falling off during turnover and assembly, improving product quality, reliability, and assembly efficiency.

[0040] In a preferred embodiment, the connecting device is symmetrically arranged in two parts. The central axis of one drain nozzle connector 2 and the central axis of the quick-lock connector 1 are projected at an angle of 15 degrees on the horizontal plane, and the central axis of the other drain nozzle connector 2 and the central axis of the quick-lock connector 1 are projected at an angle of -15 degrees on the horizontal plane. The ends of the two drain nozzle connectors 2 that are away from the quick-lock connector 1 are close to each other.

[0041] In a preferred embodiment, the quick-connect fitting 1 has a gourd-shaped cross-section. This structure significantly improves its compatibility with cold-stamped tubing, facilitates production using efficient cold-stamping processes, and improves manufacturing efficiency and cost control.

[0042] The novel car charger drain nozzle connection device provided by this utility model has the following significant advantages compared with the existing hose connection method: 1. Significantly improves assembly efficiency and convenience: The snap-fit ​​design enables a quick and intuitive "click" connection, requiring no special tools or forceful operation. This significantly shortens assembly time, reduces worker labor intensity, optimizes production line efficiency, and effectively reduces production costs caused by operational difficulties.

[0043] 2. Significantly enhances connection reliability and stability: The snap-locking mechanism provides a robust and stable mechanical connection, effectively preventing the joint from accidentally coming loose under conditions such as vibration, tension, or thermal expansion and contraction. It solves the core pain point of "improper assembly" in hose connections and ensures a high success rate for the connection.

[0044] 3. Excellent and stable sealing performance: The integrated sealing gasket is precisely and evenly compressed under the locking force of the snap-fit ​​mechanism, forming a stable and reliable sealing interface. This significantly reduces the risk of leakage and improves the reliability of the drainage system. Simultaneously, the sealing performance is less dependent on assembly operations, ensuring consistent product performance. Furthermore, the interference fit design completely solves the problem of gasket detachment, improving product quality, reliability, and assembly efficiency.

[0045] 3. Improve the overall quality and durability of the system: Structured joints are more resistant to external stress and environmental influences (such as aging and deformation) than pure rubber hose connections, comprehensively improving the overall performance, quality and long service life of the car charging dock drainage system.

[0046] 4. Relieve pipeline stress: The design of two products with a 15° mirror rotation allows the water pipes to be laid out naturally, effectively eliminating stress concentration caused by bending and extending the life of the piping system.

[0047] 5. Improve drainage performance: The design, which increases the horizontal tilt angle by 30°, significantly improves drainage efficiency and smoothness, solving the problem of poor drainage caused by insufficient tilt angle in the original design.

[0048] 6. Improve overall performance: The quick-connect coupling adopts a gourd-shaped design, which is more compatible with cold-pressed pipes. The overall structure optimization improves the stability of the connection position between the coupling and the matching components (such as water pipes and rubber gaskets) and the overall product performance.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0050] The embodiments described above are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the scope of the technology disclosed in this application, or make equivalent substitutions for some of the specific technologies; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application. All should be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A novel car charger drain nozzle connection device, characterized in that, The device includes a quick-release connector (1) and a drain nozzle connector (2). The drain nozzle connector (2) is inclinedly connected to the bottom of the quick-release connector (1). When the quick-release connector (1) is set in the horizontal direction, the projection angle between the central axis of the drain nozzle connector (2) and the central axis of the quick-release connector (1) on the vertical plane is -30 degrees, and the projection angle between the central axis of the drain nozzle connector (2) and the central axis of the quick-release connector (1) on the horizontal plane is 15 degrees or -15 degrees. A slot (3) is formed on the top of the quick-release connector (1). A drain groove (4) is formed inside the slot (3). The inner cavity of the drain groove (4) is connected to the inner cavity of the drain nozzle connector (2). A buckle structure (5) is symmetrically provided on the inner wall of the slot (3). A rubber pad (7) with a drain hole (6) is provided inside the slot (3). The rubber pad (7) is laid on the edge of the drain groove (4). The drain hole (6) is connected to the drain groove (4).

2. The novel car charging dock drain nozzle connecting device according to claim 1, characterized in that, The quick-release connector (1) and the drain nozzle connector (2) are integrally formed.

3. The novel car charger drain nozzle connection device according to claim 1, characterized in that, The outer wall of the drain nozzle connector (2) is provided with a limiting groove (8) along the circumferential direction.

4. The novel car charger drain nozzle connecting device according to claim 1, characterized in that, The end of the drain nozzle connector (2) is inverted conical.

5. The novel car charger drain nozzle connecting device according to claim 1, characterized in that, The bottom of the quick-release connector (1) is provided with a connecting seat (9), and the drain nozzle connector (2) is vertically connected to the side of the connecting seat (9).

6. The novel car charger drain nozzle connecting device according to claim 1, characterized in that, The drainage hole (6) of the rubber pad (7) is a square hole.

7. The novel car charger drain nozzle connecting device according to claim 1, characterized in that, The drainage hole (6) of the rubber pad (7) is surrounded by anti-siphon ripples (10).

8. The novel car charger drain nozzle connecting device according to claim 1, characterized in that, The rubber pad (7) and the slot (3) are interference fit.

9. The novel car charger drain nozzle connecting device according to claim 1, characterized in that, The connecting device is symmetrically set in two parts. The central axis of one drain nozzle connector (2) and the central axis of the quick-clamp connector (1) are projected at an angle of 15 degrees on the horizontal plane. The central axis of the other drain nozzle connector (2) and the central axis of the quick-clamp connector (1) are projected at an angle of -15 degrees on the horizontal plane. The ends of the two drain nozzle connectors (2) that are away from the quick-clamp connector (1) are close to each other.

10. The novel car charging dock drain nozzle connecting device according to claim 1, characterized in that, The cross-section of the quick-connect connector (1) is gourd-shaped.

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