Current-carrying terminals and electric vehicle charging sockets

Abstract

This utility model relates to the field of new energy vehicle charging technology, specifically disclosing a current-carrying terminal and an electric vehicle charging base. The current-carrying terminal is used for assembly with the charging base. The current-carrying terminal includes a terminal body, and a protrusion is provided on the outer peripheral surface of the terminal body. A bevel is provided on one side of the protrusion along the axial direction of the terminal body. The protrusion is used to cooperate with a guide groove extending along the assembly direction inside the charging base. The bevel is used to guide the protrusion into the guide groove. This utility model uses the bevel as an assembly marker to avoid the terminal body and charging base being installed backwards, and the protrusion and guide groove are circumferentially interlocked, fixing the terminal circumferentially and ensuring effective use.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle charging technology, specifically to a current-carrying terminal and an electric vehicle charging socket. Background Technology

[0002] The current-carrying terminal is a core conductive component of an automotive charger, which is an integrated housing assembly used to house and protect the current-carrying terminal. The current-carrying terminal is assembled inside the charger, forming part of it, and is responsible for transmitting power. In related technologies, the assembly of the current-carrying terminal with the automotive charger requires correct assembly orientation and anti-rotation features. However, due to the symmetry of its shape, the circular terminal structure makes it difficult to provide correct assembly orientation and anti-rotation functions. Incorrect assembly orientation leads to the scrapping of terminal products, resulting in a very high assembly defect rate. Furthermore, the lack of anti-rotation features means that the terminal cannot be fixed circumferentially, allowing the entire unit to rotate freely, affecting its usability. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this utility model propose a current-carrying terminal and an electric vehicle charging base, which uses a beveled surface as an assembly marker to prevent the terminal body from being installed backwards onto the charging base. Furthermore, the protrusion and guide groove are circumferentially interlocked, fixing the terminal circumferentially and ensuring optimal performance.

[0004] The current-carrying terminal of this utility model embodiment is used for assembly with a charging base. The current-carrying terminal includes a terminal body, and a protrusion is provided on the outer peripheral surface of the terminal body. The protrusion is provided with an inclined surface on one side along the axial direction of the terminal body. The protrusion is used to cooperate with a guide groove extending along the assembly direction in the charging base. The inclined surface is used to guide the protrusion into the guide groove.

[0005] In some embodiments, the protrusion is at least partially resilient, and the dimension of the protrusion along the radial direction of the terminal body is greater than or equal to the depth of the guide groove along the radial direction of the charging base.

[0006] In some embodiments, the protrusion includes a bulge formed by stamping the peripheral wall of the terminal body from the inside out.

[0007] In some embodiments, the protrusion includes a hollow protrusion.

[0008] In some embodiments, the protrusions are multiple and distributed circumferentially along the terminal body.

[0009] In some embodiments, one of the terminal body and the charging dock is provided with a slot, and the other is provided with a resilient anti-reverse hook, which is used to engage the terminal body with the charging dock when they are assembled.

[0010] In some embodiments, the slot is provided on the peripheral wall of the terminal body, and the anti-reverse hook is provided on the charging base.

[0011] In some embodiments, the slot includes a blind groove or through groove formed by stamping the peripheral wall of the terminal body from the outside in.

[0012] In some embodiments, the slots are multiple and distributed circumferentially along the terminal body.

[0013] The electric vehicle charging base of this utility model embodiment is characterized in that it includes the current-carrying terminal described in any of the above embodiments.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The bevel serves as a marker to ensure that the side with the bevel faces the charging base during assembly, preventing the terminal body and the charging base from being installed in reverse along the assembly direction. The bevel guides the protrusion into the guide groove, and the protrusion and the guide groove interlock in the circumferential direction. Therefore, the position of the terminal body in the circumferential direction is fixed and cannot be rotated, ensuring the effectiveness of use. Attached Figure Description

[0015] Figure 1 This is a cross-sectional schematic diagram of the current-carrying terminal according to an embodiment of the present invention.

[0016] Figure 2 This is a plan view of the current-carrying terminal according to an embodiment of the present invention.

[0017] Figure 3 for Figure 2 A schematic diagram of the cross-section of the medium-current-carrying terminal along the AA direction.

[0018] Reference numerals: 100, current-carrying terminal; 1, terminal body; 2, protrusion; 21, bevel; 22, bulge; 3, slot; 31, through slot. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] The following is combined with Figures 1 to 3 This invention describes a current-carrying terminal and an electric vehicle charging dock according to embodiments of the present invention.

[0021] like Figure 1As shown, the electric vehicle charging dock of this embodiment includes a current-carrying terminal 100. The current-carrying terminal 100 is used to assemble with the charging dock, so that it can be integrated inside the charging dock and form part of the charging dock. It can be understood that the assembly direction of the current-carrying terminal 100 and the charging dock is along the axial direction of the current-carrying terminal 100 and the axial direction of the charging dock.

[0022] The current-carrying terminal 100 includes a terminal body 1. A protrusion 2 is provided on the outer peripheral surface of the terminal body 1. A bevel 21 is provided on one side of the protrusion 2 along the axial direction of the terminal body 1. The protrusion 2 is used to cooperate with a guide groove extending along the assembly direction in the charging socket. The bevel 21 is used to guide the protrusion 2 into the guide groove.

[0023] Specifically, the guide groove is a groove pre-cut in the charging base. The width of the guide groove in the circumferential direction is approximately equal to the size of the protrusion 2 in the circumferential direction. This ensures that the protrusion 2 enters the guide groove and matches the guide groove, so that the protrusion 2 cannot rotate in the circumferential direction.

[0024] Specifically, the shape of the protrusion 2 in this embodiment is not limited. It can be block-shaped, platform-shaped, etc., as long as it has a protruding part relative to the terminal body 1.

[0025] In this invention, the inclined surface 21 serves as a marker to ensure that the side containing the inclined surface 21 faces the charging base during assembly. This prevents the terminal body 1 from being installed in reverse along the assembly direction with the charging base, thereby ensuring correct assembly direction, improving the yield rate of assembly, and reducing the number of terminal products scrapped due to assembly errors. The inclined surface 21 guides the protrusion 2 into the guide groove, and the protrusion 2 and the guide groove interlock in the circumferential direction. Therefore, the position of the terminal body 1 in the circumferential direction is fixed and cannot be rotated, ensuring the effectiveness of use.

[0026] In one embodiment, reference continues to be made to Figure 1 The protrusion 2 is at least partially elastic, and the dimension of the protrusion 2 along the radial direction of the terminal body 1 is greater than the depth of the guide groove along the radial direction of the charging base.

[0027] Specifically, in this embodiment, the protrusion 2 can be made of plastic or metal, and a portion of the protrusion 2 is elastic, or the entire protrusion 2 is elastic.

[0028] In this invention, the radial dimension of the protrusion 2 along the terminal body 1 is greater than the radial depth of the guide groove along the charging base. This allows the protrusion 21 to act as a transition between the guide groove and the protrusion 2 when the side with the inclined surface 21 faces the charging base during assembly. The protrusion 2 is compressed by the pressure of the inclined surface 21, facilitating its gradual entry into the guide groove and achieving proper engagement. Conversely, when the side without the inclined surface 21 faces the charging base during assembly—in other words, when the terminal body 1 is assembled with the opposite side of the inclined surface 21 facing the charging base—the protrusion 2 cannot be inserted into the guide groove because its radial dimension is greater than the radial depth of the guide groove. Therefore, in this embodiment, the inclined surface 21 serves not only as an observation marker but also as a mandatory error-proof design, ensuring that the terminal body 1 and the charging base can only be assembled from the side with the inclined surface 21, fundamentally preventing incorrect assembly.

[0029] In another embodiment, reference continues Figure 1 The protrusion 2 is at least partially elastic, and the radial dimension of the protrusion 2 along the terminal body 1 is equal to the radial depth of the guide groove along the charging base.

[0030] In this embodiment, when the charging base is installed with the side containing the inclined surface 21, the inclined surface 21 assists the protrusion 2 in entering the guide groove, ensuring smooth and easy installation. When the charging base is installed with the opposite side of the inclined surface 21, without the assistance of the inclined surface 21, the protrusion 2 may encounter jamming or misalignment when entering the guide groove, resulting in unsmooth and uneven installation. This design also serves as a foolproof feature, preventing incorrect installation.

[0031] In some embodiments, continue to refer to Figure 1 The protrusion 2 includes a protrusion 22 formed by stamping the peripheral wall of the terminal body 1 from the inside out.

[0032] Specifically, the terminal body 1 is made of copper alloy, such as zirconium copper or chromium zirconium copper. The protrusion 22 is stamped on the peripheral wall of the terminal body 1, and its material is the same as that of the terminal body 1. Because the protrusion 22 is stamped, it is bulging and hollow inside, which makes it easy for the protrusion 22 to be squeezed and compressed when it enters the guide groove.

[0033] In some embodiments, the protrusion 2 includes a hollow protrusion.

[0034] Specifically, the bump is an independent unit, and its material may not be the same as that of the terminal body 1. The bump can be welded to the terminal body 1 using a welding process. Since the inside of the bump is hollow, it is also easy to be squeezed and compressed when entering the guide groove.

[0035] In some embodiments, continue to refer to Figure 1 The protrusions 2 are multiple and are distributed circumferentially along the terminal body 1.

[0036] Specifically, the number of protrusions 2 is not limited and can be one, two, three, four, etc. If multiple protrusions 2 are selected, the multiple protrusions 2 are distributed at equal intervals along the circumference of the terminal body 1. Of course, if there are multiple protrusions 2, the number of guide grooves is also corresponding.

[0037] In this utility model, the arrangement of multiple protrusions 2 increases the stability of assembly and makes the anti-foolproof and anti-rotation function of the terminal body 1 more prominent, thus ensuring the assembly effect of the terminal body 1.

[0038] In some embodiments, continue to refer to Figure 1 One of the terminal body 1 and the charging base is provided with a slot 3, and the other is provided with a flexible anti-reverse hook. The anti-reverse hook is used to lock the terminal body 1 into the slot 3 when assembling the charging base.

[0039] In this embodiment, the slot 3 and the anti-reverse hook are provided in two forms: first, the slot 3 is provided on the terminal body 1, and the anti-reverse hook is provided on the charging base; second, the slot 3 is provided on the charging base, and the anti-reverse hook is provided on the terminal body 1. This embodiment does not limit the two forms, and either one can be chosen.

[0040] In this utility model, the anti-retraction hook and the slot 3 constitute a locking structure, which prevents the terminal body 1 from being removed from the charging base due to vibration, wire harness pulling or other reasons after assembly, thus ensuring the reliability and firmness of the assembly between the terminal body 1 and the charging base.

[0041] In some embodiments, continue to refer to Figure 1 and Figure 2 The card slot 3 is located on the peripheral wall of the terminal body 1, and the anti-reverse hook is located on the charging base.

[0042] Specifically, the anti-reverse hook includes a hook portion and a plastic cantilever. The hook portion is connected to the charging base via the plastic cantilever, which is capable of elastic deformation. The plastic cantilever adapts to the assembly of the terminal body 1 and the charging base through elastic deformation, while simultaneously using elastic force to engage the hook portion into the slot 3, thereby achieving locking.

[0043] In this invention, the slot 3 is designed on the peripheral wall of the terminal body 1, and the anti-reverse hook is designed on the charging base, which keeps the structure of the terminal body 1 simple and avoids introducing additional structures that would affect power transmission.

[0044] In some embodiments, continue to refer to Figure 1 The slot 3 includes a blind slot or through slot 31 formed by stamping the peripheral wall of the terminal body 1 from the outside to the inside.

[0045] Specifically, the stamping stroke can be controlled to either break or not break the peripheral wall of the terminal body 1. If it breaks, a through groove 31 is formed on the peripheral wall of the terminal body 1. If it does not break, a blind groove is formed on the peripheral wall of the terminal body 1.

[0046] In this invention, both the blind groove and the through groove 31 can achieve the locking of the anti-reverse hook, ultimately achieving the purpose of locking.

[0047] In some embodiments, continue to refer to Figure 3 The card slots 3 are multiple and are distributed circumferentially along the terminal body 1.

[0048] Specifically, multiple slots 3 are evenly distributed along the circumference of the terminal body 1; in this embodiment, there are also multiple anti-reverse hooks, which match the slots 3 one by one.

[0049] In this utility model, the design of multiple slots 3 increases the firmness of the locking between the terminal body 1 and the charging base, making it less likely for the terminal body 1 to come out of the charging base.

[0050] It should be noted that the slot 3 and the protrusion 22 can be formed in a single stamping operation. Specifically, during a single stamping operation, the die can break off the peripheral wall of the terminal body 1 on one side, thereby forming a slot 3 in the form of a through groove 31. The die continues to advance, and on the other side, it does not break off the peripheral wall of the terminal body 1 outward, thereby forming the protrusion 22. By performing the stamping operation multiple times along the circumference of the terminal body 1, multiple sets of slots 3 and protrusions 22 can be formed.

[0051] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0052] 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 at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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, an electrical connection, or a connection that allows communication between them; 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A current-carrying terminal (100) for assembly with a charging dock, characterized in that, The device includes a terminal body (1), and a protrusion (2) is provided on the outer peripheral surface of the terminal body (1). The protrusion (2) has an inclined surface (21) on one side along the axial direction of the terminal body (1). The protrusion (2) is used to cooperate with a guide groove extending along the assembly direction in the charging socket. The inclined surface (21) is used to guide the protrusion (2) into the guide groove.

2. The current-carrying terminal (100) according to claim 1, characterized in that, The protrusion (2) is at least partially elastic, and the dimension of the protrusion (2) along the radial direction of the terminal body (1) is greater than or equal to the depth of the guide groove along the radial direction of the charging base.

3. The current-carrying terminal (100) according to claim 2, characterized in that, The protrusion (2) includes a protrusion (22) formed by stamping the peripheral wall of the terminal body (1) from the inside out.

4. The current-carrying terminal (100) according to claim 2, characterized in that, The protrusion (2) includes a hollow protrusion.

5. The current-carrying terminal (100) according to any one of claims 1-4, characterized in that, The protrusions (2) are multiple and are distributed circumferentially along the terminal body (1).

6. The current-carrying terminal (100) according to claim 1, characterized in that, One of the terminal body (1) and the charging base is provided with a slot (3), and the other is provided with a flexible anti-reverse hook. The anti-reverse hook is used to engage the terminal body (1) with the charging base in the slot (3) when they are assembled.

7. The current-carrying terminal (100) according to claim 6, characterized in that, The slot (3) is located on the peripheral wall of the terminal body (1), and the anti-reverse hook is located on the charging base.

8. The current-carrying terminal (100) according to claim 7, characterized in that, The slot (3) includes a blind slot or through slot (31) formed by stamping the peripheral wall of the terminal body (1) from the outside to the inside.

9. The current-carrying terminal (100) according to any one of claims 6-8, characterized in that, The slots (3) are multiple and are distributed circumferentially along the terminal body (1).

10. An electric vehicle charging dock, characterized in that, Includes the current-carrying terminal (100) as described in any one of claims 1-9.

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