Terminal body, terminal, electrical connection module and charging base

Abstract

The utility model discloses a terminal body, terminal, electric connection module and charging seat. The terminal body includes: main part has opposite front end and rear end in the longitudinal direction, the front end of the main part is connected with the opposite matching part and extends to the front, and the opposite matching part is used for matching with the opposite matching terminal, and at least two wire harness connecting parts are arranged at intervals and are integrally connected with the rear end of the main part, and are used for matching with the connecting terminal of at least two wire harness connectors respectively. The terminal body of the utility model is connected to the wire harness through the wire harness connecting part of the main part arranged at intervals and integrally connected to the main part, and the structure has high reliability, has fewer parts, is convenient for assembling and maintaining, and has high space utilization, can be suitable for various single-end multi-channel connection application occasions, and is especially suitable for high-voltage, high-current application occasions.

Description

Technical Field

[0001] This utility model relates to a terminal body, a terminal including the terminal body, an electrical connection module including the terminal, and a charging dock including the electrical connection module. Background Technology

[0002] To charge the batteries in new energy vehicles, charging sockets suitable for mates with charging guns are typically installed. A charging socket usually includes a housing and charging terminals installed within the housing. These charging terminals are used to mate with the mating terminals of external charging devices such as charging guns. With the increasing demands for integration and temperature rise control in the new energy vehicle market, the application of "single-ended dual-channel" connection charging terminals—that is, a single charging terminal electrically connected to two wire harnesses—is becoming increasingly common.

[0003] In the existing technology, two methods are usually used to achieve the "single-end dual-channel" connection of the charging terminal: the first method is to directly weld two wire harnesses to the rear end of the charging terminal, and the second method is to connect a forked adapter to the rear end of the charging terminal through a threaded fastener, and then electrically connect the two wire harnesses through the two forks of the adapter.

[0004] In the first method, the tension of the two wire harnesses may be concentrated at the same solder joint, which can easily lead to solder joint cracking or wire breakage under vibration or external force. Furthermore, it is necessary to align the two wire harnesses at the same time and ensure that the solder is fully covered, which is more difficult and prone to problems such as cold soldering and bridging. In addition, when troubleshooting, the solder joint needs to be disconnected, which may affect another normal wire harness and increase the complexity of maintenance. In addition, connecting multiple wire harnesses with a single solder joint may not comply with some industry standards.

[0005] The second approach involves too many parts, leading to increased material costs, complicated assembly steps, and increased labor and time costs. It also requires a large amount of space for assembly operations, which is not conducive to integration. Furthermore, the threaded connection structure is prone to wear and / or loosening in a vibration environment, requiring regular inspection and maintenance. Utility Model Content

[0006] The purpose of this utility model is to solve at least one aspect of the aforementioned problems and defects existing in the prior art.

[0007] According to one aspect of the present invention, a terminal body is provided. The terminal body includes: a main body having a front end and a rear end opposite each other in a longitudinal direction; a mating part connected to the front end of the main body and extending forward for mating with a mating terminal; and at least two wire harness connecting parts arranged at intervals and integrally connected to the rear end of the main body for mating with connecting terminals of at least two wire harness connectors, respectively.

[0008] According to an exemplary embodiment of the present invention, the terminal body is an integrally molded part made of a single piece of metal material.

[0009] According to another exemplary embodiment of the present invention, the terminal body is an integrally stamped part.

[0010] According to another exemplary embodiment of the present invention, the at least two wire harness connection portions and the main body portion are integrally molded parts made of a single piece of metal material.

[0011] According to another exemplary embodiment of the present invention, the at least two wire harness connection portions are welded to different parts of the rear end of the main body.

[0012] According to another exemplary embodiment of the present invention, the wire harness connection portion includes a transition section and a mating section. The transition section is connected between the rear end of the main body and the mating section. At least a portion of the transition section extends in a direction oblique to the longitudinal direction and away from the main body. The mating section extends substantially along the longitudinal direction and is adapted to mate with the connection terminal.

[0013] According to another exemplary embodiment of the present invention, the mating segments are generally flat.

[0014] According to another exemplary embodiment of the present invention, the wire harness connection portion is generally a curved plate shape.

[0015] According to another exemplary embodiment of the present invention, the main body is generally cylindrical, and the at least two wire harness connecting portions are evenly distributed in the circumferential direction of the main body.

[0016] According to another exemplary embodiment of the present invention, the mating portion includes a cylindrical portion on which a plurality of grooves are formed. The plurality of grooves extend from one end of the mating portion away from the main body portion toward the main body portion and penetrate through the sidewall of the cylindrical portion to divide the sidewall into a plurality of elastic cantilevers spaced apart in the circumferential direction. The plurality of elastic cantilevers are adapted to make electrical contact with the mating terminal inserted into the cylindrical portion.

[0017] According to another exemplary embodiment of the present invention, the mating part is columnar and suitable for insertion into a hollow mating terminal.

[0018] According to another aspect of the present invention, a terminal is provided. The terminal includes: the aforementioned terminal body; and a sealing member, mounted on the outer surface and / or interior of the terminal body.

[0019] According to an exemplary embodiment of the present invention, the mating portion includes a cylindrical portion on which a plurality of grooves are formed. The plurality of grooves extend from one end of the mating portion away from the main body portion toward the main body portion and penetrate through the sidewall of the cylindrical portion to divide the sidewall into a plurality of elastic cantilevers spaced apart in the circumferential direction. The plurality of elastic cantilevers are adapted to make electrical contact with the mating terminal inserted into the cylindrical portion. The terminal further includes an elastic terminal collar fitted on the outside of the plurality of elastic cantilevers and has an inner diameter that can vary within a predetermined range.

[0020] According to another aspect of the present invention, an electrical connection module is provided. The electrical connection module includes: the aforementioned terminal body or the aforementioned terminal; and at least two wire harness connectors, each wire harness connector including a wire harness and a connection terminal electrically connected to an end of the wire harness, wherein at least two wire harness connection portions of the terminal body respectively mate with the connection terminals of the at least two wire harness connectors.

[0021] According to an exemplary embodiment of the present invention, the connecting terminal is crimped onto the end of the wire harness.

[0022] According to another exemplary embodiment of the present invention, the connecting terminal is pluggably connected to the wire harness connecting portion.

[0023] According to another exemplary embodiment of the present invention, the wire harness connection portion includes a generally flat mating section adapted to be inserted into the connection terminal. The connection terminal includes a slot adapted to receive the mating section and an elastic arm disposed in the slot. The elastic arm is adapted to make electrical contact with the mating section and clamp the mating section.

[0024] According to another aspect of the present invention, a charging dock is provided. The charging dock includes: a housing; and the aforementioned terminal body or the aforementioned terminal or the aforementioned electrical connection module, wherein the terminal body is inserted into the housing.

[0025] In the foregoing exemplary embodiments of the present invention, the terminal body is electrically connected to multiple wire harnesses through multiple spaced wire harness connection parts integrally connected to the main body. The structure has high reliability, fewer parts, is easy to assemble and maintain, and has high space utilization. It can be applied to various single-ended multi-channel connection applications, especially high-voltage and high-current applications.

[0026] Other objects and advantages of the present invention will become apparent from the following description of the invention with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the invention. Attached Figure Description

[0027] Figure 1A perspective view of a terminal according to an exemplary embodiment of the present invention is shown.

[0028] Figure 2 show Figure 1 A three-dimensional schematic diagram of the terminal shown from another perspective;

[0029] Figure 3 show Figure 1 An exploded view of the terminals shown;

[0030] Figure 4 A perspective view of an electrical connection module according to an exemplary embodiment of the present invention is shown;

[0031] Figure 5 show Figure 4 A partially exploded diagram of the electrical connection module shown.

[0032] Figure 6 show Figure 4 The diagram shows a longitudinal sectional view of the electrical connection module, omitting the wiring harness and the seals on it. Detailed Implementation

[0033] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In this specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of this utility model with reference to the accompanying drawings is intended to explain the overall concept of this utility model and should not be construed as a limitation thereof.

[0034] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a thorough understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0035] According to a general technical concept of the present invention, a terminal body is provided. The terminal body includes: a main body having a front end and a rear end opposite each other in the longitudinal direction; a mating part connected to the front end of the main body and extending forward for mating with a mating terminal; and at least two wire harness connecting parts, arranged at intervals and integrally connected to the rear end of the main body for mating with the connecting terminals of at least two wire harness connectors respectively.

[0036] According to another general technical concept of the present invention, a terminal is provided. The terminal includes: the aforementioned terminal body; and a sealing member, which is installed on the outer surface and / or inside of the terminal body.

[0037] According to another overall technical concept of this utility model, an electrical connection module is provided. The electrical connection module includes: the aforementioned terminal body or the aforementioned terminal; and at least two wire harness connectors, each wire harness connector including a wire harness and a connection terminal electrically connected to the end of the wire harness, wherein at least two wire harness connection portions of the terminal body are respectively mated with the connection terminals of the at least two wire harness connectors.

[0038] According to another general technical concept of this utility model, a charging dock is provided. The charging dock includes: a housing; and the aforementioned terminal body or the aforementioned terminal or the aforementioned electrical connection module, wherein the terminal body is inserted into the housing.

[0039] Figure 1 A perspective view of a terminal according to an exemplary embodiment of the present invention is shown. Figure 2 show Figure 1 A three-dimensional schematic diagram of the terminal shown from another perspective; Figure 3 show Figure 1 An exploded view of the terminals shown; Figure 4 A perspective view of an electrical connection module according to an exemplary embodiment of the present invention is shown; Figure 5 show Figure 4 A partially exploded diagram of the electrical connection module shown. Figure 6 show Figure 4 The longitudinal sectional view of the electrical connection module shown is omitted, with the wire harness 21 and the seal 23 on the wire harness 21 omitted.

[0040] like Figures 1 to 6 As shown, in an exemplary embodiment of this utility model, a terminal body 1 is disclosed. The terminal body 1 mainly includes a main body 10, a mating portion 11, and at least two wire harness connecting portions 12. The main body 10 has a front end 101 and a rear end 102 opposite each other in the longitudinal direction X. The mating portion 11 is connected to the front end 101 of the main body 10 and extends forward. The mating portion 11 is used to mate with mating terminals (not shown) of external charging devices such as charging guns. At least two wire harness connecting portions 12 are arranged at intervals and integrally connected to the rear end 102 of the main body 10. The at least two wire harness connecting portions 12 are used to mate with the connecting terminals 22 of at least two wire harness connectors 2, respectively.

[0041] In the illustrated embodiment, the terminal body 1 includes two wire harness connection portions 12. However, the present invention is not limited to the illustrated embodiment. For example, in other embodiments not illustrated, the number of wire harness connection portions 12 can be changed as needed.

[0042] The terminal body 1 is electrically connected to multiple wire harnesses by multiple spaced and integrally connected to the wire harness connection part 12 of the main body part 10. It has high structural reliability, fewer parts, is easy to assemble and maintain, and has high space utilization. It can be used in various single-ended multi-channel connection applications, especially high-voltage and high-current applications.

[0043] like Figures 1 to 6 As shown in the illustrated embodiment, the terminal body 1 is an integrally formed part made of a single piece of metal material, such as an integral stamped part. However, the present invention is not limited to this. For example, in some other exemplary embodiments, the terminal body 1 can be made by one or more of the following processing methods: machining, stamping, cold heading, laser cutting, micro forging, etc.

[0044] In some other embodiments not shown, at least two wire harness connection portions 12 of the terminal body 1 and the main body 10 are integrally molded parts made of a single piece of metal material, and the mating portion 11 is detachably connected to the main body 10 to facilitate replacement of the mating portion 11.

[0045] In some other embodiments not shown, at least two wire harness connectors 12 are integrally connected to different parts of the rear end 102 of the main body 10 by welding.

[0046] like Figures 1 to 6 As shown in the illustrated embodiment, the wire harness connection portion 12 includes a transition section 121 and a mating section 122. The transition section 121 connects the rear end 102 of the main body portion 10 to the mating section 122, and at least a portion of the transition section 121 extends in a direction oblique to the longitudinal direction X and away from the main body portion 10. The mating section 122 extends generally along the longitudinal direction X and is adapted to mate with the connection terminal 22.

[0047] like Figures 1 to 6 As shown, in the illustrated embodiment, the pair 122 is generally flat.

[0048] like Figures 1 to 6 As shown, in the illustrated embodiment, the wire harness connection portion 12 is generally a curved plate shape.

[0049] like Figures 1 to 6 As shown in the illustrated embodiment, the main body 10 is generally cylindrical, and at least two wire harness connection portions 12 are evenly distributed in the circumferential direction of the main body 10.

[0050] like Figures 1 to 6As shown in the illustrated embodiment, the mating portion 11 includes a cylindrical portion 111 on which a plurality of grooves 112 are formed. The plurality of grooves 112 extend from the end of the mating portion 11 away from the main body portion 10 toward the main body portion 10 and penetrate through the sidewall 110 of the cylindrical portion 111, dividing the sidewall 110 into a plurality of resilient cantilever arms 113 spaced apart in the circumferential direction. The plurality of resilient cantilever arms 113 are adapted to make electrical contact with mating terminals inserted into the cylindrical portion 111.

[0051] However, the present invention is not limited to the embodiments shown in the figures. For example, in some other embodiments not shown in the figures, the sidewall of the cylindrical part is continuous, and an elastic arm suitable for electrical contact with the mating terminal inserted into the cylindrical part is provided inside the cylindrical part and on the inner side of the sidewall. For another example, in some other embodiments not shown in the figures, the mating part 11 is columnar and suitable for insertion into the hollow mating terminal.

[0052] like Figures 1 to 6 As shown, in another exemplary embodiment of this utility model, a terminal is also disclosed. The terminal mainly includes the aforementioned terminal body 1, outer sealing member 5, and inner sealing member 6.

[0053] like Figures 1 to 6 As shown in the illustrated embodiment, the outer seal 5 is a sealing ring, which is fitted into the first groove 14 on the outer surface of the terminal body 1. When the terminal body 1 is inserted into the terminal mounting hole of the housing of the charging dock (not shown), the outer seal 5 is pressed between the outer surface of the terminal body 1 and the inner wall of the terminal mounting hole to prevent moisture from entering the interior of the charging dock through the gap between the outer surface of the terminal body 1 and the inner wall of the terminal mounting hole. The inner seal 6 is a sealing plug, which is inserted into the interior of the terminal body 1 to seal the inner cavity 13 of the terminal body 1, thereby preventing moisture from entering the interior of the charging dock through the inner cavity 13.

[0054] In the illustrated embodiment, the terminal includes an outer seal 5 and an inner seal 6. However, the present invention is not limited to the illustrated embodiment. For example, in other embodiments not illustrated, depending on different sealing requirements, the terminal may not include a seal, or may only include an outer seal 5, or only include an inner seal 6, or may include more seals.

[0055] like Figures 1 to 6As shown, in the illustrated embodiment, the terminal further includes a resilient terminal collar 7, which is fitted into a second groove 15 on the outer side of the plurality of resilient cantilever 113. The resilient terminal collar 7 has an inner diameter that can vary within a predetermined range to limit excessive radial deformation of the cylindrical portion 111, thereby effectively preventing yielding deformation of the cylindrical portion 111. The detailed structure and working principle of the resilient terminal collar are described in the utility model patent application filed by the applicant on May 24, 2022, with application number 202221257944.3, entitled "Resilient Terminal Collar, Terminal Assembly and Charging Stand".

[0056] like Figures 1 to 6 As shown, in another exemplary embodiment of this utility model, an electrical connection module is also disclosed. This electrical connection module includes the aforementioned terminal body 1 and at least two wire harness connectors 2, or includes the aforementioned terminal and at least two wire harness connectors 2. Each wire harness connector 2 includes a wire harness 21 and a connection terminal 22 electrically connected to the end of the wire harness 21. At least two wire harness connection portions 12 of the terminal body 1 are respectively mated with the connection terminals 22 of at least two wire harness connectors.

[0057] like Figures 1 to 6 As shown, in the illustrated embodiment, the connection terminal 22 is crimped to the end of the wire harness 21.

[0058] like Figures 1 to 6 As shown, in the illustrated embodiment, the connecting terminal 22 is pluggably connected to the wire harness connecting portion 12.

[0059] like Figures 1 to 6 As shown in the illustrated embodiment, the wire harness connector 12 includes a generally flat mating section 122. This mating section 122 is adapted to be inserted into a connecting terminal 22. The connecting terminal 22 includes a slot 221 adapted to receive the mating section 122 and a resilient arm 222 disposed within the slot 221. The resilient arm 222 is adapted to make electrical contact with and hold the mating section 122.

[0060] like Figures 1 to 6 As shown in the illustrated embodiment, the electrical connection module further includes a sealing ring 23 fitted onto the outer peripheral surface of the wire harness 21. This sealing ring 23 seals the gap between the wire harness 21 and the mounting hole for inserting the wire harness 21. In other embodiments not shown, the sealing ring 23 may not be provided on the outer peripheral surface of the wire harness 21.

[0061] Although not illustrated, another exemplary embodiment of the present invention also discloses a charging dock. The charging dock includes a housing and the aforementioned terminal body, or includes a housing and the aforementioned terminals, or includes a housing and the aforementioned electrical connection module, with the terminal body inserted into the housing.

[0062] In one exemplary embodiment of the present invention, the charging dock is a charging dock for new energy vehicles. However, the present invention is not limited to this. For example, in some other exemplary embodiments, the aforementioned terminal body or the aforementioned terminal or the aforementioned electrical connection module can also be used for other single-ended multi-channel connection applications.

[0063] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved upon. The structures described in the various embodiments can be freely combined without causing structural or principle conflicts, and these changes should fall within the protection scope of this utility model.

[0064] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to illustrate preferred embodiments of the present invention and should not be construed as a limitation thereof.

[0065] While some embodiments of the general concept of this utility model have been shown and described, those skilled in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the general concept of this utility model, the scope of which is defined by the claims and their equivalents.

[0066] It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude multiple elements. Furthermore, any reference numerals in the claims should not be construed as limiting the scope of this invention.

Claims

1. A terminal body, characterized in that, include: The main body (10) has a front end (101) and a rear end (102) that are opposite each other in the longitudinal (X) direction. The mating part (11), connected to and extending forward from the front end (101) of the main body part (10), is used for mating with the mating terminal; and At least two wire harness connection portions (12) are arranged at intervals and integrally connected to the rear end (102) of the main body portion (10) for mating with the connection terminals (22) of at least two wire harness connectors (2).

2. The terminal body according to claim 1, characterized in that: The terminal body (1) is an integral molded part made of a single piece of metal material.

3. The terminal body according to claim 1, characterized in that: The terminal body (1) is an integral stamped part.

4. The terminal body according to claim 1, characterized in that: The at least two wire harness connection portions (12) and the main body portion (10) are integral molded parts made of a single piece of metal material.

5. The terminal body according to claim 1, characterized in that: The at least two wire harness connection portions (12) are connected to different parts of the rear end (102) of the main body portion (10) by welding.

6. The terminal body according to any one of claims 1-5, characterized in that: The wiring harness connection portion (12) includes a transition section (121) and a mating section (122). The transition section (121) is connected between the rear end (102) of the main body portion (10) and the mating section (122). At least a portion of the transition section (121) extends in a direction oblique to the longitudinal direction (X) and away from the main body portion (10). The mating section (122) extends generally along the longitudinal direction (X) and is adapted to mate with the connection terminal (22).

7. The terminal body according to claim 6, characterized in that: The pairing segment (122) is generally flat.

8. The terminal body according to claim 7, characterized in that: The wire harness connector (12) is generally a curved plate.

9. The terminal body according to any one of claims 1-5, characterized in that: The main body (10) is generally cylindrical, and the at least two wire harness connecting parts (12) are evenly distributed in the circumferential direction of the main body (10).

10. The terminal body according to any one of claims 1-5, characterized in that: The mating portion (11) includes a cylindrical portion (111) on which a plurality of grooves (112) are formed. The plurality of grooves (112) extend from one end of the mating portion (11) away from the main body portion (10) toward the main body portion (10) and through the sidewall (110) of the cylindrical portion (111) to divide the sidewall (110) into a plurality of elastic cantilever (113) spaced apart in the circumferential direction. The plurality of elastic cantilever (113) is adapted to make electrical contact with the mating terminal inserted into the cylindrical portion (111).

11. The terminal body according to claim 1, characterized in that: The mating part (11) is columnar and is suitable for insertion into the hollow mating terminal.

12. A terminal, characterized in that, include: Terminal body (1) according to any one of claims 1-11; and Seals (5, 6) are installed on the outer surface and / or inside of the terminal body (1).

13. The terminal according to claim 12, characterized in that: The mating portion (11) includes a cylindrical portion (111) on which a plurality of grooves (112) are formed. The plurality of grooves (112) extend from one end of the mating portion (11) away from the main body portion (10) toward the main body portion (10) and through the sidewall (110) of the cylindrical portion (111) to divide the sidewall (110) into a plurality of elastic cantilever arms (113) spaced apart in the circumferential direction. The plurality of elastic cantilever arms (113) are adapted to make electrical contact with the mating terminal inserted into the cylindrical portion (111). The terminal also includes a resilient terminal collar (7) fitted on the outside of the plurality of resilient cantilever arms (113) and having an inner diameter that can vary within a predetermined range.

14. An electrical connection module, characterized in that, include: The terminal body (1) according to any one of claims 1-11 or the terminal according to any one of claims 12-13; and At least two wire harness connectors (2), each wire harness connector (2) includes a wire harness (21) and a connection terminal (22) electrically connected to the end of the wire harness (21). At least two wire harness connection portions (12) of the terminal body (1) are respectively matched with the connection terminals (22) of the at least two wire harness connectors.

15. The electrical connection module according to claim 14, characterized in that: The connection terminal (22) is crimped to the end of the wire harness (21).

16. The electrical connection module according to claim 14, characterized in that: The connecting terminal (22) is pluggably connected to the wire harness connecting part (12).

17. The electrical connection module according to claim 16, characterized in that: The wire harness connector (12) includes a generally flat mating section (122) adapted to be inserted into the connector terminal (22). The connection terminal (22) includes a slot (221) adapted to receive the mating segment (122) and an elastic arm (222) disposed in the slot (221), the elastic arm (222) being adapted to make electrical contact with the mating segment (122) and clamp the mating segment (122).

18. A charging stand, characterized in that, include: case; and The terminal body (1) according to any one of claims 1-11, or the terminal according to any one of claims 12-13, or the electrical connection module according to any one of claims 14-17, The terminal body (1) is inserted into the housing.

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