Wiring terminal, charging gun and charging equipment

Abstract

The utility model discloses a wiring terminal, a charging gun and charging equipment, and belongs to the technical field of charging equipment. The wiring terminal is characterized in that the wiring terminal comprises a terminal body and an injection molding part; the terminal body comprises a plugging part and a connecting part, the plugging part is hollow and is provided with a closed end and an open end which are opposite to each other, and the connecting part is connected to the open end of the plugging part; the injection molding part comprises a filling part and a wrapping part, the filling part fills the interior of the inserting part, and the wrapping part wraps the part, close to the opening end, of the inserting part. According to the wiring terminal, the charging gun and the charging equipment, the copper material consumption can be reduced, and the processing and material cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of charging equipment technology, and in particular to a terminal block, a charging gun, and a charging device. Background Technology

[0002] Currently, the terminal blocks on the charging gun are key components for connecting the charging line and the charging equipment, mainly used for fixing, conducting electricity and providing safety protection for the electrical connection.

[0003] In related technologies, the terminals on the charging gun are usually formed by directly machining round copper cylinders, which not only requires a large amount of copper material but also has high processing costs. Utility Model Content

[0004] This utility model provides a terminal block, a charging gun, and a charging device, which can reduce copper consumption and lower processing and material costs. The technical solutions for the terminal block, charging gun, and charging device are as follows.

[0005] On the one hand, this utility model embodiment provides a wiring terminal, including a terminal body and an injection molded part;

[0006] The terminal body includes a plug-in portion and a connecting portion. The plug-in portion is hollow and has a closed end and an open end, and the connecting portion is connected to the open end of the plug-in portion.

[0007] The injection molded part includes a filling portion and a wrapping portion, the filling portion filling the interior of the insertion portion, and the wrapping portion wrapping the portion of the insertion portion adjacent to the opening end.

[0008] In one possible implementation, the terminal body is formed by stamping a sheet metal.

[0009] In one possible implementation, the connector includes a first tubular segment and a second tubular segment connected together, the second tubular segment being closer to the connector than the first tubular segment, and the inner diameter of the first tubular segment being larger than the inner diameter of the second tubular segment.

[0010] The filling portion fills the interior of the first tubular segment and the second tubular segment, and the wrapping portion wraps the exterior of the second tubular segment.

[0011] In one possible implementation, the insertion portion further includes a third tubular segment, through which the second tubular segment and the connecting portion are connected, wherein the inner diameter of the third tubular segment is larger than the inner diameter of the second tubular segment;

[0012] The filling portion fills the interior of the third tubular segment, and the wrapping portion wraps the exterior of the third tubular segment.

[0013] In one possible implementation, the wrapping portion has multiple convex ring structures, with an annular groove formed between two adjacent convex ring structures.

[0014] In one possible implementation, the second tubular segment has an opening, which, together with the open end, is used for low-pressure injection molding to form the injection molded part.

[0015] In one possible implementation, the plane containing the connecting portion is parallel to the axial direction of the insertion portion.

[0016] In one possible implementation, the connecting portion includes a first sub-portion and a second sub-portion connected together, the first sub-portion being connected to the plug-in portion, and the extending direction of the first sub-portion intersecting the extending direction of the second sub-portion, such that the connecting portion is L-shaped.

[0017] On the other hand, this utility model embodiment provides a charging gun, which includes the wiring terminals and printed circuit board as described in one aspect above.

[0018] The connection portion of the terminal block is connected to the printed circuit board.

[0019] In another aspect, this utility model embodiment provides a charging device, which includes a charging gun as described in the above aspect.

[0020] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following:

[0021] The terminal block provided in this embodiment of the invention is constructed by filling the insertion portion of the terminal body with an injection-molded part to cover the portion of the insertion portion adjacent to the opening end, so that the terminal block is composed of a terminal body and an injection-molded part. Thus, compared to the related art where terminal blocks are directly machined from round copper cylinders, the terminal block provided in this embodiment of the invention can significantly reduce copper consumption and lower processing and material costs.

[0022] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit the present invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the structure of a wiring terminal provided in an embodiment of this utility model;

[0025] Figure 2 A cross-sectional view of a wiring terminal provided for an embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of a terminal body provided in an embodiment of the present utility model;

[0027] Figure 4 This is a schematic diagram of another terminal body provided in an embodiment of the present utility model;

[0028] Figure 5 A schematic diagram of the structure of a charging gun provided in an embodiment of this utility model;

[0029] Figure 6 A partial structural diagram of the location of the wiring terminals in a charging gun provided for an embodiment of this utility model;

[0030] Figure 7 A partial structural diagram of the location of the wiring terminals in another charging gun provided in this embodiment of the utility model.

[0031] The reference numerals in the figure indicate:

[0032] 1. Terminal body; 11. Insertion part; 1101. Closed end; 1102. Open end; 111. First tubular section; 112. Second tubular section; 1121. Opening; 113. Third tubular section; 114. Raised ring structure; 115. Annular groove; 12. Connecting part; 121. First sub-part; 122. Second sub-part;

[0033] 2. Injection molded part; 21. Filler part; 22. Encapsulation part;

[0034] 01. Wiring terminals;

[0035] 02. Printed circuit boards;

[0036] 00. Charging gun.

[0037] The accompanying drawings have illustrated specific embodiments of the present invention, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0038] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0039] It should be noted that, unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by a person of ordinary skill in the art to which this disclosure pertains.

[0040] In the description of this utility model, some directional terms 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. In the embodiments of this utility model, terms such as "upper," "lower," and "side" are generally used to indicate orientation. Figure 1 The relative positions shown are based on the given information, and these directional terms are used only to more clearly describe the relationships between structures, not to describe absolute positions. Positions may change when the product is placed in different orientations; for example, "up" and "down" may be interchanged.

[0041] To make the technical solution and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0042] With the increasing popularity of electric vehicles, charging guns, as a core component of electric vehicle charging systems, are gradually entering people's lives. Charging guns are mainly used to connect electric vehicles to charging power sources (such as charging stations, charging sockets, etc.) to ensure the safe transmission of electrical energy.

[0043] The terminals on the charging gun are key components connecting the charging line and the charging equipment, primarily used for securing, conducting electricity, and providing safety protection for the electrical connection. Currently, terminals are typically machined directly from round copper cylinders, which not only requires a large amount of copper but also incurs high machining costs.

[0044] To address the problems existing in the current manufacturing of terminal blocks, this utility model provides a terminal block, a charging gun, and a charging device, which can reduce copper consumption and lower processing and material costs.

[0045] Figure 1 This is a schematic diagram of the structure of a wiring terminal provided in an embodiment of the present utility model. Figure 2 This is a cross-sectional view of a wiring terminal provided in an embodiment of the present invention. See also... Figure 1 and Figure 2 The wiring terminal provided in this embodiment of the utility model includes a terminal body 1 and an injection molded part 2.

[0046] The terminal body 1 includes a plug-in portion 11 and a connecting portion 12. The plug-in portion 11 is hollow and has a closed end 1101 and an open end 1102. The connecting portion 12 is connected to the open end 1102 of the plug-in portion 11. The injection molded part 2 includes a filling portion 21 and a wrapping portion 22. The filling portion 21 fills the interior of the plug-in portion 11, and the wrapping portion 22 wraps the portion of the plug-in portion 11 adjacent to the open end 1102, so that the injection molded part 2 can play the role of fixing, waterproofing and sealing.

[0047] It should be noted that, as Figure 2 As shown, the injection molded part 2 can fill the interior of the insertion part 11 completely or partially, and no specific limitation is made in this embodiment of the utility model.

[0048] The terminal block provided in this embodiment of the invention is constructed by filling the insertion portion 11 of the terminal body 1 with the injection molded part 2 to cover the portion of the insertion portion 11 adjacent to the opening end 1102, so that the terminal block is composed of the terminal body 1 and the injection molded part 2. Thus, compared to the terminal blocks formed by directly machining round copper cylinders in related technologies, the terminal block provided in this embodiment of the invention can significantly reduce copper consumption and lower processing and material costs. Furthermore, this terminal block has universality and compatibility, and can be adapted to various existing products, such as charging guns.

[0049] In this embodiment of the invention, the terminal body 1 is formed by stamping a metal sheet. That is, the insertion portion 11 and the connecting portion 12 are integrally stamped. Compared to related technologies where a round copper column is directly machined, this significantly reduces material consumption and avoids the processing costs associated with machining.

[0050] Furthermore, the metal sheet can be a copper sheet.

[0051] Here, the copper plate is made of copper material. Copper material has excellent electrical conductivity, good mechanical properties and processability, good corrosion resistance and low acquisition cost, so it has become the preferred material for terminal body 1.

[0052] See Figure 2 , Figure 3 and Figure 4 ,in Figure 3 This is a schematic diagram of the structure of a terminal body provided in an embodiment of the present utility model. Figure 4This is a schematic diagram of another terminal body provided in an embodiment of the present invention. The insertion part 11 includes a first tubular section 111 and a second tubular section 112 connected together. It can be understood that both the first tubular section 111 and the second tubular section 112 are hollow cylinders.

[0053] The second tubular segment 112 is closer to the connecting part 12 than the first tubular segment 111. The inner diameter of the first tubular segment 111 is larger than the inner diameter of the second tubular segment 112. The first tubular segment 111 is used to contact the device to be charged, and the second tubular segment 112 is used to cooperate with the injection molded part 2 to play a role in installation and fixation.

[0054] See Figure 2 The filling portion 21 of the injection molded part 2 fills the interior of the first tubular section 111 and the second tubular section 112, and the wrapping portion 22 of the injection molded part 2 wraps the exterior of the second tubular section 112.

[0055] In some embodiments, see Figure 3 The second tubular section 112 has an opening 1121, and the opening 1121 and the open end 1102 are used together for low-pressure injection molding to form the injection molded part 2.

[0056] Optionally, the material of injection molded part 2 can be plastic or soft rubber to facilitate injection molding.

[0057] In this embodiment of the utility model, see Figure 2 , Figure 3 and Figure 4 The insertion portion 11 further includes a third tubular segment 113, through which the second tubular segment 112 and the connecting portion 12 are connected. The inner diameter of the third tubular segment 113 is larger than the inner diameter of the second tubular segment 112. It is understood that the third tubular segment 113 is also a hollow cylinder. For example, the inner diameter of the third tubular segment 113 is the same as the inner diameter of the first tubular segment 111.

[0058] See Figure 2 The filling part 21 fills the interior of the third tubular segment 113, and the wrapping part 22 wraps the exterior of the third tubular segment 113. That is, the filling part 21 fills the interior of the first tubular segment 111, the second tubular segment 112 and the third tubular segment 113, and wraps the exterior of the second tubular segment 112 and the third tubular segment 113.

[0059] In some embodiments, see Figure 2 The wrapping part 22 has multiple convex ring structures 113, and an annular groove 114 is formed between two adjacent convex ring structures 113.

[0060] The use of multiple convex ring structures 113 and the annular groove 114 formed between two adjacent convex ring structures 113 facilitates the subsequent installation and fixing of wiring terminals.

[0061] In some embodiments, see Figure 4 The plane of the connecting portion 12 is parallel to the axial direction of the insertion portion 11. That is, the connecting portion 12 is planar, and its extension direction is parallel to the axial direction of the wiring portion 11. This facilitates the connection and fixation of the connecting portion 12 to the printed circuit board.

[0062] In some embodiments, see Figure 3 The connecting portion 12 includes a first sub-portion 121 and a second sub-portion 122 connected together. The first sub-portion 121 is connected to the plug-in portion 11 so as to connect the plug-in portion 11 and the second sub-portion 122 using the first sub-portion 121. The extending direction of the first sub-portion 121 intersects the extending direction of the second sub-portion 122, making the connecting portion 12 L-shaped, so as to connect and fix the second sub-portion 122 to the printed circuit board.

[0063] In this embodiment of the utility model, see Figure 3 The extension direction of the first sub-part 121 is perpendicular to the extension direction of the second sub-part 122.

[0064] Since the connecting part 12 is part of the terminal body 1 and is also formed by stamping copper plates, it does not need to be bent when connecting to the printed circuit board. Compared with the related technology where turning a round copper column requires bending to form the connecting part, the manufacturing method is simpler and reduces processing costs.

[0065] See Figure 3 In this embodiment of the invention, the connecting part 12 has multiple process holes for ease of preparation.

[0066] In one possible implementation, the terminal block provided in this embodiment of the present invention can be formed by the following steps:

[0067] The copper plate is stamped to form the terminal body;

[0068] By performing low-pressure injection molding on the terminal body, the injection molded part is filled into the interior of the plug and the outer wall on the side where the opening is located.

[0069] This utility model embodiment also provides a charging gun 00, see [link]. Figure 5 , Figure 6 and Figure 7 ,in Figure 5 This is a schematic diagram of the structure of a charging gun provided in an embodiment of the present utility model. Figure 6 This is a partial structural diagram of the location of the wiring terminals in a charging gun, provided by an embodiment of the present invention. Figure 7This is a partial structural diagram of the wiring terminal location in another charging gun provided by an embodiment of the present invention. The charging gun 00 provided by this embodiment of the present invention includes the wiring terminal 01 and the printed circuit board 02 as described in the above embodiments.

[0070] The connecting part 12 of the terminal block 01 is connected to the printed circuit board 02.

[0071] With the development of AC charging for automobiles, users have increasingly higher requirements for product integration and miniaturization. For integrated charging guns (with the printed circuit board integrated into the charging gun), the current connection methods between the terminals and the printed circuit board are usually either by bending machined terminals and then soldering them, or by crimping cables after the terminals and then connecting them to the printed circuit board. However, both methods face the problems of high cost or cumbersome assembly. Based on this, this utility model proposes a brand-new charging gun 00, which directly connects the connection part 12 of the terminal 01 to the printed circuit board 02, thereby greatly reducing the manufacturing cost of the charging gun terminals.

[0072] In addition, the charging gun 00 of this utility model embodiment uses the above-mentioned wiring terminal 01, which can reduce copper consumption and reduce processing and material costs.

[0073] In some embodiments, the connector 12 is soldered to the printed circuit board 02. For example, the connector 12 can be fixedly connected to the printed circuit board 02 by soldering.

[0074] In this embodiment of the utility model, see Figure 6 or Figure 7 The number of terminal blocks 01 can be three.

[0075] During the actual installation process, see Figure 6 The assembly process is simple and convenient. Each terminal 01 is inserted into the corresponding mounting hole of the printed circuit board 02 and then fixed by soldering. It is then fastened to the bracket and installed into the housing of the charging gun.

[0076] This utility model embodiment also provides a charging device, which includes a charging gun as described in the above embodiments.

[0077] Since the charging equipment uses a charging gun that includes the aforementioned terminal 01, it can reduce copper consumption and lower processing and material costs.

[0078] It should be noted that 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this utility model, "at least one" means one or more, and "more" means two or more, unless otherwise explicitly specified. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. In the description of this specification, references to the terms "some embodiments" or "exemplary" indicate that a specific feature, structure, material, or characteristic described in connection with the described embodiments or examples is included in at least one embodiment or example of this utility model.

[0079] The above description is merely an embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A terminal block, characterized in that, Includes terminal body (1) and injection molded part (2); The terminal body (1) includes a plug-in portion (11) and a connecting portion (12). The plug-in portion (11) is hollow and has a closed end (1101) and an open end (1102) opposite to each other. The connecting portion (12) is connected to the open end (1102) of the plug-in portion (11). The injection molded part (2) includes a filling part (21) and a wrapping part (22), the filling part (21) filling the interior of the plug part (11) and the wrapping part (22) wrapping the portion of the plug part (11) adjacent to the opening end (1102).

2. The terminal block according to claim 1, characterized in that, The terminal body (1) is formed by stamping a metal sheet.

3. The terminal block according to claim 1, characterized in that, The insertion part (11) includes a first tubular segment (111) and a second tubular segment (112) connected together. The second tubular segment (112) is closer to the connection part (12) than the first tubular segment (111). The inner diameter of the first tubular segment (111) is larger than the inner diameter of the second tubular segment (112). The filling part (21) fills the interior of the first tubular segment (111) and the second tubular segment (112), and the wrapping part (22) wraps the exterior of the second tubular segment (112).

4. The terminal block according to claim 3, characterized in that, The insertion part (11) further includes a third tubular section (113), the second tubular section (112) and the connecting part (12) are connected through the third tubular section (113), and the inner diameter of the third tubular section (113) is larger than the inner diameter of the second tubular section (112); The filling part (21) fills the interior of the third tubular segment (113), and the wrapping part (22) wraps the exterior of the third tubular segment (113).

5. The terminal block according to claim 3, characterized in that, The wrapping part (22) has a plurality of convex ring structures (114), and an annular groove (115) is formed between two adjacent convex ring structures (114).

6. The terminal block according to claim 3, characterized in that, The second tubular segment (112) has an opening (1121), which, together with the open end (1102), is used for low-pressure injection molding to form the injection molded part (2).

7. The terminal block according to claim 1, characterized in that, The plane containing the connecting part (12) is parallel to the axial direction of the plug-in part (11).

8. The terminal block according to claim 7, characterized in that, The connecting part (12) includes a first sub-part (121) and a second sub-part (122) connected together. The first sub-part (121) is connected to the plug-in part (11), and the extension direction of the first sub-part (121) intersects the extension direction of the second sub-part (122), so that the connecting part (12) is L-shaped.

9. A charging gun (00), characterized in that, The charging gun (00) includes a wiring terminal (01) and a printed circuit board (02) as described in any one of claims 1-8. The connection part (12) of the terminal block (01) is connected to the printed circuit board (02).

10. A charging device, characterized in that, The charging device includes the charging gun as described in claim 9.

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