Stamping terminal with split groove structure for direct current charging socket of new energy automobile

Abstract

The utility model relates to the technical field of new energy automobile charging, in particular to a new energy automobile direct current charging socket split groove structure stamping terminal which comprises a base body and a sleeve arranged outside the base body in a sleeving mode. The front end of the base body is provided with a plurality of elastic sheets which are annularly distributed at intervals, and the rear end of the base body is reserved with a cable crimping groove along the axial direction; a plurality of supporting claws for inwards supporting the elastic sheet are formed in the sleeve; the base body is further provided with a supporting framework located between the elastic piece and the cable crimping groove, and the supporting framework is provided with a sealing ring. The stamping terminal adopts a stamping process, so that the production efficiency can be remarkably improved, the processing cost is reduced, and the stamping process is generally faster than machining and lower in cost. And through optimization design, the material consumption is reduced, so that the material cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy automobile charging technical field, concretely is a new energy automobile direct current charging socket slotting structure stamping terminal. BACKGROUND

[0002] With the rapid development of new energy automobile industry, as the key component of electric vehicle charging system, the performance and cost of DC charging socket have important influence on the popularity of electric vehicles and user experience. Among them, DC+ / DC- two charging terminals as the core component in DC charging socket, responsible for transmitting electric energy, realizing direct current high power charging. The performance, cost and reliability of these terminals are directly related to the efficiency and safety of the whole charging system.

[0003] At present, the DC+ / DC- terminal adapting φ12 pin is mainly produced by machining. Although this production method can ensure the precision and performance of the terminal, it has the problems of low machining efficiency, large material consumption, high electroplating cost, etc. At the same time, with the continuous expansion of electric vehicle market, the demand for charging terminals is also increasing, and the traditional machining method has been difficult to meet the demand of large-scale production.

[0004] On the other hand, the terminal adapting φ3 and φ6 pin has realized stamping and mass production. Stamping production method has the advantages of high production efficiency, high material utilization rate and low cost, so it has been widely used in terminal production. However, for DC+ / DC- terminal, due to its large size, heavy weight, high cost and other characteristics, stamping production is still in the research stage.

[0005] The existing DC+ / DC- terminal production method has significant defects, mainly including low machining efficiency, large material consumption, high electroplating cost, insufficient sealing performance and high contact resistance. These problems not only affect the production efficiency and increase the cost, but also limit the performance and application range of the terminal. Therefore, it is urgent to develop a new type of stamping terminal to overcome these defects, improve the production efficiency, reduce the cost, and improve the performance and reliability of the terminal. INVENTION CONTENTS

[0006] The utility model provides a new energy automobile direct current charging socket slotting structure stamping terminal to solve the above problems of low production efficiency and high cost of charging terminal in the prior art.

[0007] The utility model discloses a new energy automobile direct current charging socket split slot structure stamping terminal which solves the above technical problems, and the technical scheme is as follows: a new energy automobile direct current charging socket split slot structure stamping terminal, including base body, and the sleeve of base body outside is set up sleeve, the front end of base body is provided with a plurality of annular interval distribution's elastic sheet, and its rear end has cable crimping groove along the axial reservation, the sleeve is formed with a plurality of support the elastic sheet of inward support and grab, the base body still is equipped with the support framework between elastic sheet and cable crimping groove, and the support framework is provided with sealing ring.

[0008] On the basis of the above technical scheme, the utility model still can make following improvement.

[0009] Further, the base body and / or sleeve are stamped from sheet metal.

[0010] Further, the base body further forms cable crimping wings along the cable crimping groove slot on both sides.

[0011] Further, the elastic sheet is contracted into a horn shape along the head towards the axis, and the sleeve end further forms a curled edge for limiting the head of the elastic sheet.

[0012] Further, the base body is provided with a limiting hole, and the sleeve is formed with a limiting buckle matched with the limiting hole.

[0013] Further, the sealing ring is integrally injection molded with the support framework.

[0014] Further, the base body further forms a stop framework on the rear side of the support framework.

[0015] Further, the sealing ring is formed with a plurality of waterproof ribs in the circumferential direction.

[0016] Further, the inner surface of the elastic sheet is silver-plated, and the outer surface is tin-plated.

[0017] And, the energy automobile direct current charging socket split slot structure stamping terminal provided by the utility model has at least the following beneficial effects compared with the prior art:

[0018] Improve production efficiency and reduce processing cost:

[0019] The existing terminal is machined from a bar, which has low production efficiency and high processing cost. The stamping terminal of the utility model adopts a stamping process, which can significantly improve the production efficiency and reduce the processing cost, because the stamping process is usually faster and less costly than machining.

[0020] Reduce material usage and reduce material cost:

[0021] The existing terminal has a complex structure and is heavy, resulting in high material cost. The stamping terminal of the utility model reduces the material usage through optimized design, thereby effectively reducing the material cost.

[0022] Lower plating cost:

[0023] The existing machining terminal adopts single terminal hanging plating mode for electroplating, and the silver plating area is large and the cost is high. The stamping terminal of the utility model can adopt continuous plating process, and only the inner side of the terminal contact spring is plated with silver (to improve conductivity), and the outer side is plated with tin (to improve corrosion resistance), thereby greatly reducing the electroplating cost.

[0024] Cancel the snap spring, reduce the BOM and assembly cost:

[0025] The existing split slot structure terminal head needs to be sleeved with a snap spring to ensure the insertion and pulling force, which increases the BOM cost and assembly cost. The stamping terminal of the utility model optimizes the structure design and does not need to use a snap spring, thereby reducing the cost and simplifying the assembly process.

[0026] Solve the assembly difficulty problem:

[0027] The existing terminal generally has only one lock, and it is easy to encounter difficulties during assembly. The stamping terminal of the utility model solves the assembly difficulty problem by increasing the limiting structure design, improves the assembly efficiency and reliability.

[0028] Reduce the contact resistance, improve the current carrying capacity and safety:

[0029] The existing spring structure machining terminal has high contact resistance and poor current carrying capacity, which is easy to cause temperature rise failure. The stamping terminal of the utility model optimizes the design of the contact spring, reduces the contact resistance, thereby improves the current carrying capacity and safety, and reduces the risk of product temperature rise. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is the utility model shot;

[0031] Figure 2 is the overall structure schematic view of the utility model;

[0032] In the drawings, the component list represented by each reference numeral is as follows:

[0033] 1, base body; 1.1, spring; 1.2, cable crimping groove; 1.3, cable crimping wing; 1.4, limiting hole; 2, sleeve; 2.1, supporting claw; 2.2, hem; 2.3, limiting buckle; 3, supporting framework; 4, sealing ring; 4.1, waterproof rib; 5, stop framework. DETAILED DESCRIPTION

[0034] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and are not used to limit the scope of the utility model.

[0035] It should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, but also detachable connection, but also one-piece structure. For ordinary skilled in the art, the specific meaning of such terms in this patent can be understood according to the specific circumstances.

[0036] As shown in Figure 1 And Figure 2 The utility model discloses a new energy automobile direct current charging socket split slot structure stamping terminal, including base body 1, and the sleeve 2 of sleeve setting in base body 1 outside, the front end of base body 1 is provided with a plurality of annular interval distribution's elastic sheet 1.1, and its rear end is reserved cable crimp groove 1.2 along the axial direction, the sleeve 2 is formed with a plurality of inwards support elastic sheet 1.1's support claw 2.1, base body 1 still is equipped with the support framework 3 between elastic sheet 1.1 and cable crimp groove 1.2, the support framework 3 is provided with sealing ring 4.

[0037] The front end of base body 1 sets up annular elastic sheet 1.1 for connection, and the rear end is reserved cable crimp groove 1.2 to fix cable, and sleeve 2 supports elastic sheet 1.1 through support claw 2.1 to enhance the stability of connection, and the support framework 3 is located between elastic sheet and crimp groove and provides structural support, and the sealing ring 4 provided on it ensures the sealing property.

[0038] As an implementation form, the base body 1 and / or the sleeve 2 are stamped and formed by sheet metal parts, which can improve production efficiency and reduce cost.

[0039] As an implementation form, the base body 1 is further formed with cable crimping wings 1.3 along the cable crimping groove 1.2 on both sides of the slot opening, which is used to further enhance the crimping stability and connection reliability of the cable.

[0040] As an implementation form, the elastic sheet 1.1 is contracted into a horn shape along the head towards the axis, which facilitates good electrical contact with the pin; the sleeve 2 is further formed with a curled edge 2.2 for limiting the head of the elastic sheet 1.1, which is used to limit the head of the elastic sheet 1.1 and ensure that the elastic sheet will not be deformed or fall off when stressed.

[0041] As an implementation form, the base body 1 is reserved with a limiting hole 1.4, and the sleeve 2 is formed with a limiting buckle 2.3 adapted to the limiting hole 1.4. The stable connection between the base body 1 and the sleeve 2 is realized, which prevents the sleeve from loosening or falling off during plugging and unplugging, and further improves the connection reliability and stability of the entire terminal.

[0042] As an implementation form, the sealing ring 4 is integrally injection molded with the support framework 3.

[0043] As a supplement, a stop frame 5 located at the rear side of the support frame 3 is also formed on the base 1 .

[0044] Specifically, the sealing ring 4 is formed with a plurality of waterproof ribs 4.1 along the circumference.

[0045] In the design of this split-slot stamped terminal for the DC charging socket of new energy vehicles, the sealing ring 4 and support frame 3 are manufactured using an integrated injection molding process. This manufacturing method not only improves the bonding strength between the sealing ring and the support frame but also simplifies the production process. Furthermore, a retaining frame 5 is added to the base 1, located behind the support frame 3, to prevent the support frame and sealing ring from moving backward when subjected to force, further enhancing the structural stability and reliability of the entire terminal. Furthermore, the sealing ring 4 is designed with several waterproof ribs 4.1 along its circumference. These ribs effectively prevent impurities such as moisture and dust from entering the terminal, improving the terminal's waterproof and dustproof properties and ensuring its normal operation in harsh environments.

[0046] In one embodiment, the inner surface of the spring clip 1.1 is silver-plated, and the outer surface is tin-plated. The spring clip 1.1 of this new energy vehicle DC charging socket's split-slot structure stamped terminal utilizes a unique electroplating process: the inner surface is silver-plated to improve conductivity and ensure good electrical contact with the pin; while the outer surface is tin-plated to enhance corrosion resistance and aesthetics. This dual electroplating process not only improves the terminal's electrical performance but also extends its service life.

[0047] It should be noted that, in this article, the terms "include", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. Unless otherwise expressly specified and limited, the terms "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0048] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0049] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A new energy vehicle DC charging socket split slot structure stamping terminal, characterized in that: The invention comprises a base body (1) and a sleeve (2) sleeved outside the base body (1); a plurality of spring pieces (1.1) distributed in an annular manner are provided at the front end of the base body (1), and a cable crimping groove (1.2) is reserved axially at the rear end thereof; a plurality of support grips (2.1) for inwardly supporting the spring pieces (1.1) are formed in the sleeve (2); a support frame (3) located between the spring pieces (1.1) and the cable crimping groove (1.2) is further provided on the base body (1), and a sealing ring (4) is provided on the support frame (3).

2. The split slot structure stamping terminal for the DC charging socket of a new energy vehicle according to claim 1, characterized in that: The base body (1) and / or the sleeve (2) are formed by stamping of sheet metal parts.

3. The split slot structure stamping terminal for the DC charging socket of a new energy vehicle according to claim 2, characterized in that: Cable crimping wings (1.3) are also formed on both sides of the cable crimping groove (1.2) on the base body (1).

4. The split slot structure stamping terminal for the DC charging socket of a new energy vehicle according to claim 1, characterized in that: The spring piece (1.1) shrinks along the head toward the axis into a trumpet shape, and the end of the sleeve (2) is also formed with a curling edge (2.2) for limiting the head of the spring piece (1.1).

5. The split slot structure stamping terminal for the DC charging socket of a new energy vehicle according to claim 1, characterized in that: A limiting hole (1.4) is reserved on the base (1), and a limiting buckle (2.3) adapted to the limiting hole (1.4) is formed on the sleeve (2).

6. The split slot structure stamping terminal for the DC charging socket of a new energy vehicle according to claim 1, characterized in that: The sealing ring (4) and the supporting frame (3) are integrally injection-molded.

7. The split slot structure stamping terminal for the DC charging socket of a new energy vehicle according to claim 6, characterized in that: A retreat-stop frame (5) located at the rear side of the support frame (3) is also formed on the base (1).

8. The split slot structure stamping terminal for the DC charging socket of a new energy vehicle according to claim 6, characterized in that: The sealing ring (4) is formed with a plurality of waterproof ribs (4.1) along the circumference.

9. The split slot structure stamping terminal for a DC charging socket of a new energy vehicle according to any one of claims 1 to 8, characterized in that: The inner surface of the spring (1.1) is silver-plated, and the outer surface thereof is tin-plated.

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