A mistake-proofing automobile charging pile connector assembly

Abstract

The utility model discloses an automobile charging pile connector assembly of mistake proofing belongs to automobile charging pile technical field, and its technical scheme main points include connector plug and connector socket, the bottom of connector plug is provided with mistake proofing convex, the surface of connector plug is provided with the protective cover, the surface of protective cover is provided with sealing mechanism, the bottom of protective cover is provided with dehumidification mechanism, sealing mechanism includes first sealing ring, a plurality of antiskid strips and second sealing ring, the right side of first sealing ring is fixedly connected with the left side of protective cover, the connector plug is inserted in the inside of connector socket, after solving the plug and socket connection of part automobile charging pile connector assembly of existing, only rely on the sealing of plug inside self -sealing structure, rain and humidity still easily enter the joint gap, therefore, in the process of plugging, rain easily contacts with metal contact, and there is certain security hidden danger problem.

Description

Technical Field

[0001] This utility model relates to the field of automobile charging pile technology, and in particular to an automobile charging pile connector assembly that prevents incorrect installation. Background Technology

[0002] With the increasing popularity of new energy vehicles, the frequency of use of charging piles is increasing. In order to ensure the safety, efficiency and accuracy of the charging process and prevent electrical faults, equipment damage or even safety accidents caused by incorrect installation of the charging gun and the charging pile socket, anti-misinstallation technology has emerged. By designing unique shapes for the charging gun head and gun base, they can only be inserted when the shapes of the two are completely matched.

[0003] In the current technology, the connection between the charging gun and the charging station is achieved by simply plugging the front gun head into the power supply terminal to conduct electricity and fix the connection between the gun head and the power supply terminal. However, the gun head has weight, which can easily cause damage to the plug part under gravity.

[0004] An existing patent (publication number: CN221530436U) in the field of charging piles describes a charging method that involves aligning the connector installed at the front end of the charging gun with the openings of the outer and inner frame covers, and inserting the connector into the openings of the outer and inner frame covers. Simultaneously, the guide block inside the electrical box is electrically connected to the inner frame cover, thus achieving the connection between the connector and the inner frame cover and enabling charging. The top block connected to the front part of the top of the charging gun, together with the plug rod and the opening post in the slot, is used to fix and stabilize the charging gun after it is plugged in.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, in some existing car charging pile connector components, the plug and socket are only sealed by the internal sealing structure of the plug. Rainwater and moisture can still easily enter the connection gaps. Therefore, during the plugging and unplugging process, rainwater can easily come into contact with the metal contacts, posing a certain safety hazard.

[0006] To address this, a car charging pile connector assembly designed to prevent incorrect installation is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a car charging pile connector assembly that prevents incorrect installation. This assembly solves the problem that in some existing car charging pile connector assemblies, after the plug and socket are connected, the plug only relies on its internal sealing structure for sealing. Rainwater and moisture can still easily enter the connection gap, so rainwater can easily come into contact with the metal contacts during plugging and unplugging, posing a certain safety hazard.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a car charging pile connector assembly for preventing incorrect assembly, comprising a connector plug and a connector socket, wherein the bottom of the connector plug is provided with an anti-incorrect assembly protrusion, the surface of the connector plug is provided with a protective cover, the surface of the protective cover is provided with a sealing mechanism, and the bottom of the protective cover is provided with a dehumidification mechanism.

[0009] The sealing mechanism includes a first sealing ring, several anti-slip strips, and a second sealing ring. The right side of the first sealing ring is fixedly connected to the left side of the protective cover. The connector plug is inserted into the inside of the connector socket. The left side of the first sealing ring contacts the right side of the connector socket. The side of the anti-slip strip closest to the protective cover is fixedly connected to the protective cover. The surface of the second sealing ring is fixedly connected to the inner wall of the protective cover. The surface of the second sealing ring contacts the surface of the connector plug.

[0010] Preferably, the dehumidification mechanism includes a mesh screen, a connecting cover, a placement box, and a lid. The mesh screen is fixedly connected to the inner wall of the connecting cover, the top of the connecting cover is fixedly connected to the bottom of the protective cover, the bottom of the placement box is fixedly connected to the surface of the lid, and the inner wall of the lid is in contact with the surface of the connecting cover.

[0011] Preferably, the front and rear sides of the top of the cover are fixedly connected with a card plate, and a card block is fixedly connected to one side of each card plate opposite to the other. The front and rear sides of the connecting cover are provided with card slots, and the card block is engaged inside the card slot.

[0012] Preferably, the card plate is made of thermoplastic elastomer, and a pull block is fixedly connected to the surface of the card plate.

[0013] Preferably, the top and bottom of the front side of the protective cover are fixedly connected to a first connecting block, and the internal thread of the first connecting block is connected to a limit screw.

[0014] Preferably, the top and bottom of the connector plug are fixedly connected to the second connecting block, and the limiting screw extends into the interior of the second connecting block from the side near the second connecting block.

[0015] Preferably, a pull ring is fixedly connected to the bottom of the cover.

[0016] Preferably, the first and second sealing rings are both made of fluororubber, and the anti-slip strip is made of silicone.

[0017] Preferably, the connector plug has a locking mechanism installed inside, and the connector plug and connector socket are connected by the locking mechanism.

[0018] Preferably, the protective cover, connecting cover, and cover are all made of polyvinylidene fluoride.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This application, by setting up a sealing mechanism, aims to prevent rainwater and moisture from entering. The second sealing ring is fixed to the inner wall of the protective cover and makes close contact with its surface after the connector plug is inserted into the protective cover. With the excellent sealing properties of fluororubber, external moisture is first isolated from entering the interior of the protective cover. When the connector plug is inserted into the connector socket, the first sealing ring on the left side of the protective cover fits against the right side of the connector socket, further sealing the gap between them and preventing rainwater from entering and contacting the metal contacts. This double sealing layer solves the problem of water ingress in existing components that rely solely on the plug's own seal. At the same time, the silicone anti-slip strip on the surface of the protective cover increases grip friction, making it easier for operators to accurately connect the protective cover and the connector plug and perform subsequent insertion and removal operations, providing operational assurance for the stable performance of the sealing structure.

[0021] 2. This application incorporates a dehumidification mechanism. Its core function is to actively remove residual moisture inside the protective cover after the connector plug and connector socket are connected. During use, the external highly absorbent montmorillonite block is first placed in the placement box, and then the placement box is inserted into the connecting cover that communicates with the protective cover. The mesh on the inner wall of the connecting cover prevents the montmorillonite block from falling off and does not obstruct moisture from entering. The cover uses a locking plate to make the locking block engage with the connecting cover's locking groove, achieving a stable assembly. The pull block facilitates subsequent disassembly and replacement of the montmorillonite block, while the pull ring improves handling convenience. Throughout the charging process, the montmorillonite block continuously absorbs moisture inside the protective cover. Combined with the corrosion-resistant and lightweight properties of polyvinylidene fluoride, it protects the components and further ensures that the connector plug and connector socket remain dry. This overcomes the shortcomings of existing components that rely solely on sealing to deal with residual internal moisture, ensuring charging safety. Attached Figure Description

[0022] Figure 1 This is an overall structural diagram of the car charging pile connector assembly for preventing misassembly according to this utility model;

[0023] Figure 2 This is a three-dimensional connection diagram of the protective cover and the connector plug in this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the connector plug in this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the right side of the protective cover in this utility model;

[0026] Figure 5 This is a three-dimensional exploded view of the connecting cover and the placement box in this utility model;

[0027] Figure 6 This is a three-dimensional connection diagram of the card plate and card block in this utility model;

[0028] Figure 7 This is a three-dimensional structural diagram of the bottom of the cover body in this utility model.

[0029] In the diagram, 1. Connector plug; 2. Protective cover; 3. Dehumidification mechanism; 301. Partition mesh; 302. Connecting cover; 303. Placement box; 304. Cover; 4. Connector socket; 5. Sealing mechanism; 501. First sealing ring; 502. Anti-slip strip; 503. Second sealing ring; 6. Second connecting block; 7. First connecting block; 8. Limiting screw; 9. Slot; 10. Card plate; 11. Card block; 12. Pull block; 13. Lock; 14. Anti-misinstallation protrusion; 15. Pull ring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-7 The present invention provides the following technical solution:

[0032] A car charging pile connector assembly with anti-misassembly features includes a connector plug 1 and a connector socket 4. The bottom of the connector plug 1 is provided with an anti-misassembly protrusion 14, the surface of the connector plug 1 is provided with a protective cover 2, the surface of the protective cover 2 is provided with a sealing mechanism 5, and the bottom of the protective cover 2 is provided with a dehumidification mechanism 3.

[0033] The sealing mechanism 5 includes a first sealing ring 501, several anti-slip strips 502 and a second sealing ring 503. The right side of the first sealing ring 501 is fixedly connected to the left side of the protective cover 2. The connector plug 1 is inserted into the inside of the connector socket 4. The left side of the first sealing ring 501 is in contact with the right side of the connector socket 4. The side of the anti-slip strip 502 near the protective cover 2 is fixedly connected to the protective cover 2. The surface of the second sealing ring 503 is fixedly connected to the inner wall of the protective cover 2. The surface of the second sealing ring 503 is in contact with the surface of the connector plug 1.

[0034] In this embodiment: First, the external high-hygroscopic montmorillonite block is placed in the placement box 303 of the dehumidification mechanism 3. The placement box 303 is fixed to the cover 304. The thermoplastic elastomer plate 10 on the top of the cover 304 is elastic. The placement box 303 is inserted into the connecting cover 302, which is connected to the protective cover 2. All three are made of polyvinylidene fluoride. The mesh 301 prevents the montmorillonite block from falling. The elasticity of the plate 10 allows the locking block 11 to engage with the slot 9 of the connecting cover 302. Pulling the pull block 12 allows the locking block 11 to disengage from the slot 9, making it easy to disassemble the cover 304 and the placement box 303 to replace the montmorillonite block. Then, the connector plug 1 is inserted into the protective cover 2 and fixed to the second connecting block 6 of the connector plug 1 by the limiting screw 8 of the first connecting block 7. The second sealing ring 5 of the fluororubber material on the inner wall of the protective cover 2 is fixed. 03 Enhanced sealing: Connector plug 1 is correctly inserted into connector socket 4 with the help of anti-misalignment protrusion 14, and locking buckle 13 prevents it from falling off. At this time, the left side of the first sealing ring 501 is in contact with the surface of connector socket 4. The first sealing ring 501, made of fluororubber, prevents rainwater from entering the gap between connector plug 1 and connector socket 4. During charging, highly hygroscopic montmorillonite blocks absorb moisture inside the protective cover 2, further ensuring that connector plug 1 and connector socket 4 remain dry during charging, ensuring safe and stable charging of the car. This solves the problem that in some existing car charging pile connector components, after the plug and socket are connected, the sealing is only achieved by the internal sealing structure of the plug, and rainwater and moisture can still easily enter the connection gap. Therefore, during the insertion and removal process, rainwater can easily come into contact with the metal contacts, posing a certain safety hazard.

[0035] Specifically, such as Figure 5 As shown, the dehumidification mechanism 3 includes a mesh 301, a connecting cover 302, a placement box 303, and a cover 304. The mesh 301 is fixedly connected to the inner wall of the connecting cover 302. The top of the connecting cover 302 is fixedly connected to the bottom of the protective cover 2. The bottom of the placement box 303 is fixedly connected to the surface of the cover 304. The inner wall of the cover 304 is in contact with the surface of the connecting cover 302.

[0036] Specifically, such as Figure 5 and Figure 6 As shown, the front and rear sides of the top of the cover 304 are fixedly connected with a card plate 10, and the opposite sides of the two card plates 10 are fixedly connected with a card block 11. The front and rear sides of the connecting cover 302 are provided with card slots 9, and the card block 11 is engaged in the inside of the card slot 9.

[0037] Specifically, such as Figure 5 and Figure 6 As shown, the material of the card plate 10 is thermoplastic elastomer, and the surface of the card plate 10 is fixedly connected with a pull block 12.

[0038] In this embodiment: In the dehumidification mechanism 3, the mesh 301 can prevent the highly absorbent montmorillonite blocks inside and outside the placement box 303 from falling off and does not obstruct the entry of moisture, thus ensuring the dehumidification effect. The connecting cover 302 is connected to the protective cover 2 to achieve precise moisture adsorption. The cover 304 and the connecting cover 302 are connected by the card plate 10, the card block 11, and the card slot 9. With the elasticity of the thermoplastic elastomer card plate 10, it is easy to quickly disassemble and assemble the placement box 303 to replace the highly absorbent montmorillonite blocks. The pull block 12 further improves the ease of operation of the carding structure and ensures efficient maintenance of the dehumidification mechanism 3.

[0039] Specifically, such as Figure 4 As shown, the top and bottom of the front side of the protective cover 2 are fixedly connected to the first connecting block 7, and the internal thread of the first connecting block 7 is connected to the limit screw 8.

[0040] Specifically, such as Figure 2 , Figure 3 and Figure 4 As shown, the top and bottom of the connector plug 1 are fixedly connected to the second connecting block 6, and the limiting screw 8 extends into the interior of the second connecting block 6 from the side near the second connecting block 6.

[0041] In this embodiment, the first connecting block 7 of the protective cover 2 and the second connecting block 6 of the connector plug 1 are connected by a limiting screw 8, which can firmly fix the connector plug 1 inside the protective cover 2, avoid relative shaking between the two leading to sealing failure or poor contact, ensure the assembly stability of the connector plug 1 and the protective cover 2, and provide a structural basis for subsequent sealing and anti-misassembly.

[0042] Specifically, such as Figure 7 As shown, a pull ring 15 is fixedly connected to the bottom of the cover 304.

[0043] Specifically, such as Figure 4 As shown, the first sealing ring 501 and the second sealing ring 503 are both made of fluororubber, and the anti-slip strip 502 is made of silicone.

[0044] In this embodiment: the pull ring 15 at the bottom of the cover 304 makes it easy to hold the cover 304, further improving the ease of disassembly and assembly of the dehumidification mechanism 3; the first sealing ring 501 and the second sealing ring 503 made of fluororubber have excellent sealing performance and corrosion resistance, and can effectively prevent rainwater and moisture from entering the gaps between the connector plug 1 and the connector socket 4 and the protective cover 2; and the silicone anti-slip strip 502 enhances the grip friction of the protective cover 2.

[0045] Specifically, such as Figure 1 and Figure 3 As shown, a latch 13 is installed inside the connector plug 1, and the connector plug 1 and the connector socket 4 are connected by the latch 13.

[0046] Specifically, such as Figure 1and Figure 5 As shown, the protective cover 2, the connecting cover 302 and the cover 304 are all made of polyvinylidene fluoride.

[0047] In this embodiment, the connector plug 1 and the connector socket 4 are connected by a latch 13, which can prevent them from accidentally falling off during charging and ensure charging stability. The protective cover 2, the connecting cover 302, and the cover 304 made of polyvinylidene fluoride are lightweight and highly corrosion resistant, which can effectively protect the internal components from external environmental erosion and extend the overall service life of the components.

[0048] Working principle: First, the external highly absorbent montmorillonite blocks are placed inside the placement box 303 in the dehumidification mechanism 3. The bottom of the placement box 303 is fixedly connected to the surface of the cover 304. The top front and rear sides of the cover 304 are fixedly connected to clamping plates 10, which are made of thermoplastic elastomer, providing good elasticity for easy subsequent clamping operations. Next, the placement box 303 is inserted into the connecting cover 302. The top of the connecting cover 302 is fixedly connected to the bottom of the protective cover 2. The protective cover 2, connecting cover 302, and cover 304 are all made of polyvinylidene fluoride (PVDF), a lightweight and corrosion-resistant material that effectively protects internal components. A mesh 301 is fixedly connected to the inner wall of the connecting cover 302 to prevent the highly absorbent montmorillonite blocks inside the placement box 303 from falling out while not affecting the surrounding environment. Moisture enters and is then deformed by the elasticity of the thermoplastic elastomer retaining plate 10, causing the retaining block 11 to engage with the retaining grooves 9 on the front and rear sides of the connecting cover 302, thus achieving a stable connection between the cover 304 and the connecting cover 302. The pull ring 15 facilitates the holding of the cover 304 and the placement box 303. Pulling the pull block 12 deforms the retaining plate 10, causing the retaining block 11 to disengage from the retaining groove 9, facilitating the subsequent disassembly of the cover 304 to replace the highly absorbent montmorillonite block. Then, the connector plug 1 is inserted into the protective cover 2. The top and bottom of the front side of the protective cover 2 are fixedly connected to the first connecting block 7, and the first connecting block 7 is internally threaded with a limit screw 8. The top and bottom of the connector plug 1 are fixedly connected to the second connecting block 7. Connect block 6, then rotate the limiting screw 8 so that the limiting screw 8 extends into the interior of the second connecting block 6 from the side closest to the second connecting block 6, thereby achieving a stable connection between the connector plug 1 and the protective cover 2. At the same time, the second sealing ring 503 fixedly connected to the inner wall of the protective cover 2 is in close contact with the surface of the connector plug 1. The second sealing ring 503 is made of fluororubber, which has excellent sealing properties and can enhance the sealing effect between the connector plug 1 and the protective cover 2. Then, the connector plug 1 and the connector socket 4 are inserted. The bottom of the connector plug 1 is provided with an anti-misinstallation protrusion 14, which can ensure that the connector plug 1 can only be inserted into the connector socket 4 in the correct posture to avoid misinstallation. The connector plug 1 has a locking buckle 13 installed inside. When the connector plug 1 is inserted into the connector... Inside the socket 4, a locking buckle 13 securely connects the two components, preventing accidental detachment during charging. It should be noted that the locking buckle 13 inside the connector plug 1 is a well-established and publicly available technology; its basic mechanism will not be elaborated here. After the connector plug 1 and connector socket 4 are inserted, the first sealing ring 501, fixedly connected to the left side of the protective cover 2, contacts the right side of the connector socket 4. The first sealing ring 501 is also made of fluororubber, and its excellent sealing performance prevents rainwater from entering the gap between the connector plug 1 and connector socket 4, preventing rainwater from contacting the metal contacts during insertion and removal and causing safety issues. Furthermore, several anti-slip strips 502 are fixedly connected to the surface of the protective cover 2. The anti-slip strips 502 are made of silicone, which has good anti-slip properties.To facilitate connection between the protective cover 2 and the connector plug 1, the highly absorbent montmorillonite blocks inside the box 303 absorb residual moisture inside the protective cover 2 and after the connector plug 1 and connector socket 4 are connected. This further ensures that the connector plug 1 and connector socket 4 remain dry during charging, guaranteeing safe and stable charging of the vehicle. This addresses the issue in some existing car charging pile connector assemblies where, after the plug and socket are connected, the internal sealing structure of the plug alone allows rainwater and moisture to easily enter the connection gaps. Therefore, rainwater can easily come into contact with the metal contacts during insertion and removal, posing a safety hazard. It should be noted again that the connector plug 1 and connector socket 4 are existing, published, and mature technologies; their basic mechanisms will not be elaborated upon here.

[0049] The above are merely preferred embodiments of the present utility model and are 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. A car charging pile connector assembly designed to prevent incorrect installation, comprising a connector plug (1) and a connector socket (4), characterized in that: The connector plug (1) has an anti-misinstallation protrusion (14) at the bottom, a protective cover (2) on the surface of the connector plug (1), a sealing mechanism (5) on the surface of the protective cover (2), and a dehumidification mechanism (3) at the bottom of the protective cover (2). The sealing mechanism (5) includes a first sealing ring (501), several anti-slip strips (502) and a second sealing ring (503). The right side of the first sealing ring (501) is fixedly connected to the left side of the protective cover (2). The connector plug (1) is inserted into the inside of the connector socket (4). The left side of the first sealing ring (501) is in contact with the right side of the connector socket (4). The anti-slip strip (502) is fixedly connected to the protective cover (2) on the side close to the protective cover (2). The surface of the second sealing ring (503) is fixedly connected to the inner wall of the protective cover (2). The surface of the second sealing ring (503) is in contact with the surface of the connector plug (1).

2. The car charging pile connector assembly for preventing incorrect installation according to claim 1, characterized in that: The dehumidification mechanism (3) includes a mesh screen (301), a connecting cover (302), a placement box (303), and a cover (304). The mesh screen (301) is fixedly connected to the inner wall of the connecting cover (302). The top of the connecting cover (302) is fixedly connected to the bottom of the protective cover (2). The bottom of the placement box (303) is fixedly connected to the surface of the cover (304). The inner wall of the cover (304) is in contact with the surface of the connecting cover (302).

3. The car charging pile connector assembly for preventing incorrect installation according to claim 2, characterized in that: The cover (304) has a card plate (10) fixedly connected to the front and rear sides of the top, and a card block (11) fixedly connected to the opposite side of the two card plates (10). The connecting cover (302) has a card slot (9) on the front and rear sides, and the card block (11) is engaged in the inside of the card slot (9).

4. The car charging pile connector assembly for preventing incorrect installation according to claim 3, characterized in that: The material of the card plate (10) is thermoplastic elastomer, and a pull block (12) is fixedly connected to the surface of the card plate (10).

5. The car charging pile connector assembly for preventing incorrect installation according to claim 1, characterized in that: The top and bottom of the front side of the protective cover (2) are fixedly connected to a first connecting block (7), and the internal thread of the first connecting block (7) is connected to a limit screw (8).

6. The car charging pile connector assembly for preventing incorrect installation according to claim 5, characterized in that: The connector plug (1) is fixedly connected to the top and bottom of the second connecting block (6), and the limiting screw (8) extends into the interior of the second connecting block (6) from the side near the second connecting block (6).

7. The car charging pile connector assembly for preventing incorrect installation according to claim 2, characterized in that: A pull ring (15) is fixedly connected to the bottom of the cover (304).

8. The car charging pile connector assembly for preventing incorrect installation according to claim 1, characterized in that: The first sealing ring (501) and the second sealing ring (503) are both made of fluororubber, and the anti-slip strip (502) is made of silicone.

9. The car charging pile connector assembly for preventing incorrect installation according to claim 1, characterized in that: The connector plug (1) is equipped with a latch (13) inside, and the connector plug (1) and the connector socket (4) are connected by the latch (13).

10. The car charging pile connector assembly for preventing incorrect installation according to claim 2, characterized in that: The protective cover (2), connecting cover (302) and cover (304) are all made of polyvinylidene fluoride.

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