A charging gun terminal block

Abstract

This utility model discloses a charging gun terminal block, including: an insulating base, and a signal terminal group and a power terminal group disposed on the insulating base. Each power terminal in the power terminal group includes: an integrally formed contact portion, a connecting portion, and a pin portion. The contact portion is vertically disposed on the top surface of the insulating base, and the pin portion extends from the end of the connecting portion, is bent, and then leads out from the side of the insulating base. Furthermore, the direction in which the pin portion of each power terminal leads out from the side of the insulating base is different, i.e., the pin portions in the power terminal group are radially distributed. In this utility model, the pin portions of all power terminals no longer extend vertically along the axial direction, but extend from the side of the insulating base after bending. This allows for a further reduction in the axial dimension of the entire product, making full use of lateral space, and enabling the final plug or socket to be used in locations with insufficient axial space.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive charging gun products, and specifically to a charging gun terminal block. Background Technology

[0002] With the popularization and development of electric vehicles, charging gun plugs have formed a unified standard, such as IEC 62196 Type 2 standard. The terminals in the current charging gun plugs (or sockets) can be distinguished by function, including power terminals for charging and signal terminals for signal transmission.

[0003] Because charging gun plugs or sockets have a large number of terminals, most current terminals use a vertical connection method to facilitate connection with the power cord. That is, the pins of the terminals extend vertically downwards along the terminal's axial direction before connecting to the power cord. See, for example, Chinese utility model patent CN223093206U, entitled "A Plug-in Module, Charging Socket, and Electric Vehicle"; and Chinese invention patent application CN120222069A, entitled "Anti-Accidental Contact Protection Mechanism for Charging Gun and Charging Socket Connector Assembly." These charging gun plugs or sockets all use a vertical pin connection method in their design. This connection method requires the charging gun plug or socket to have sufficient axial space, resulting in a larger overall axial dimension of the product, which is not conducive to use in locations with insufficient axial space.

[0004] In response to this, the inventor proposes the following technical solution. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a charging gun terminal holder. The technical solution adopted is a charging gun terminal holder, including: an insulating base, and a signal terminal group and a power terminal group fixed on the insulating base. Each power terminal in the power terminal group includes: an integrally formed contact part, a connecting part and a pin part. The contact part is arranged vertically on the top surface of the insulating base. The pin part extends from the end of the connecting part, and after being bent, it is led out from the side of the insulating base. Moreover, the pin part of each power terminal leads out from the side of the insulating base in a different direction, that is, the pin parts in the power terminal group are radially distributed.

[0006] Furthermore, in the above technical solution, the power terminal group is distributed according to position as follows: a first power terminal located in the front row and close to the side where the pin portion of the insulating base is led out, and a second power terminal located in the rear row away from the side where the pin portion of the insulating base is led out; the first power terminals are arranged horizontally at uniform intervals; the second power terminals are arranged horizontally at uniform intervals; the pin portion of the second power terminal is led out from the area between two adjacent first power terminals.

[0007] Furthermore, in the above technical solution, the power terminal group includes five power terminals, of which there are three first power terminals and two second power terminals; among the three first power terminals, the pin portions of the first power terminals located on both sides are symmetrically distributed along the pin portion of the first power terminal located in the middle; the pin portions of the two second power terminals are symmetrically distributed along the pin portion of the first power terminal located in the middle.

[0008] Furthermore, in the above-described technical solution, the pin portion of the first power terminal extends from the end of its connecting portion, and after being horizontally bent, is led out from the side of the insulating base.

[0009] Furthermore, in the above-mentioned technical solution, the pin portion of the second power terminal extends from the end of its connection portion, and after being bent multiple times to form a clearance groove, it is finally led out horizontally from the side of the insulating base.

[0010] Furthermore, in the above technical solution, each power terminal in the power terminal group has an integrally injection-molded connecting seat on its connecting part, and the connecting seat is integrally injection-molded and fixedly connected to the insulating seat or snap-fit ​​connection.

[0011] Furthermore, with the above technical solution, all pin ends are formed with connection holes, and the ends of all pin ends are on the same horizontal plane.

[0012] Furthermore, in the above technical solution, the ends of all pins are connected to a plug terminal, and the ends of the plug terminal form a plug portion that mates with an external power supply box.

[0013] Furthermore, with the above technical solution, all plug-in terminals are fixedly connected by positioning seats, so that all plug-in parts extend from the positioning seats and are arranged in parallel and evenly spaced intervals.

[0014] Furthermore, in the above technical solution, the signal terminal group includes two signal terminals. The signal terminals are fixed vertically to the top surface of the insulating base. After the signal line is electrically connected to the signal terminal, it is led out from the side of the insulating base, and the lead-out direction of the signal line is different from the lead-out direction of the pin.

[0015] By adopting the above technical solution, this utility model will have the following advantages: First, in this invention, the pins of all power terminals no longer extend vertically along the axial direction, but extend from the side of the insulating base after being bent. This allows the axial dimension of the entire product to be further reduced, making full use of the lateral space, so that the final plug or socket can be used in locations with insufficient axial space.

[0016] Secondly, in order to ensure that all the pins do not interfere with each other and facilitate subsequent connection with the power cord, this utility model adopts a radial distribution of the pins in the power terminal group to ensure that there is sufficient spacing between the pins of each power terminal.

[0017] Finally, the signal terminal in this invention is directly connected to the signal line and led out from the other side of the insulating base, without occupying the axial space of the product. Attached Figure Description

[0018] Figure 1 This is a perspective view of Embodiment 1 of this utility model; Figure 2 This is a front view of Embodiment 1 of this utility model; Figure 3 This is a top view of Embodiment 1 of this utility model; Figure 4 This is a bottom view of Embodiment 1 of this utility model; Figure 5 This is an exploded perspective view of Embodiment 1 of this utility model; Figure 6 This is an exploded perspective view of the signal terminal and connector in Embodiment 1 of this utility model; Figure 7 This is a perspective view of the first power terminal combined with its positioning seat in Embodiment 1 of this utility model; Figure 8 This is a perspective view of the first power terminal in Embodiment 1 of this utility model; Figure 9 This is a perspective view of the second power terminal combined with its positioning seat in Embodiment 1 of this utility model; Figure 10 This is a perspective view of the second power terminal in Embodiment 1 of this utility model; Figure 11 This is a perspective view of Embodiment 2 of this utility model. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0020] This utility model relates to a terminal block for use in a charging gun socket. See Figures 1 to 5 As shown, this is Embodiment 1 of the present invention. The charging gun terminal block includes: Insulating base 1, which serves as the bearing base for all terminals, is generally made of insulating materials such as plastic.

[0021] The signal terminal group 20 typically has two signal terminals 2, which are used for signal transmission during charging, such as detecting whether the charging plug is inserted.

[0022] The power terminal group 30 is composed of several power terminals according to different specifications and is used for current transmission during charging. In this embodiment, the power terminal group 30 includes five power terminals.

[0023] The plug and socket of the charging gun are standard parts. The distribution of the signal terminal group 20 and the power terminal group 30 on the top surface of the insulating base 1 adopts international standard design, referencing... Figure 2 As shown, taking the side from which the pins extend in the insulating base 1 as the front, the power terminal group 30 includes, according to different positional distributions: three first power terminals 31 located at the front and two second power terminals 32 located at the rear. The signal terminal group 20 includes two signal terminals 2, and the signal terminals 2 are located in front of the first power terminals 31. The first power terminals 31 are arranged at uniform intervals laterally; the second power terminals 32 are arranged at uniform intervals laterally.

[0024] Combination Figure 6 As shown, the signal terminal 2 includes a signal contact portion 21, a signal connection portion 22, and a signal pin portion 23, all integrally formed from metal material. The signal terminal 2 is vertically fixed to the top surface of the insulating base 1 along the axial direction via a signal connector 24. The fixing method is as follows: First, the signal terminal 2 and the signal connector 24 are integrally injection molded. To ensure a tight connection between the signal terminal 2 and the signal connector 24, a through hole is provided on the signal connection portion 22 of the signal terminal 2. When the signal connector 24 is injection molded, the raw material passes through the through hole to form a stable connection. After the signal terminal 2 with the signal connector 24 is manufactured, it is then injection molded with the insulating base 1 again, so that the signal connector 24 and the insulating base 1 are fixed as a whole. Simultaneously, to ensure a tight connection between the signal connector 24 and the insulating base 1, the bottom surface and side surface of the base of the signal connector 24 are respectively formed with a positioning block 241, a positioning protrusion 242, and a positioning groove 243.

[0025] The signal pin portion 23 and the signal line 201 are electrically connected by soldering. Signals are transmitted through the signal line 201. During installation, the signal pin portion 23 is first soldered to the signal line 201, and then the signal connector 24 is injection molded, thus fixing the signal line 201 to the signal connector 24. Then, during the injection molding of the insulating base 1, the signal line 201 is simply led out from the side of the insulating base 1.

[0026] Combination Figure 7 , Figure 8 As shown, the first power terminal 31 includes a contact portion 311, a connecting portion 312, and a pin portion 313, all integrally formed from metal. The end of the pin portion 313 is formed with a connection hole 3130 for connecting to an external wire.

[0027] The first power terminal 31 is vertically fixed to the top surface of the insulating base 1 along the axial direction via a connecting seat 314. Its fixing method is basically the same as that of the signal terminal 2. The difference is that the signal pin portion 23 of the signal terminal 2 is directly encased within the signal connecting seat 24 or the insulating base 1, while the pin portion 313 of the first power terminal 31 extends from its connecting portion 312, bends, and extends out from the side of the insulating base 1. The pin portions 313 of the three first power terminals 31 extend out from the side of the insulating base 1 in different directions, radially distributed, and the ends of the connecting holes 3130 of the pin portions 313 of the three first power terminals 31 are on the same horizontal plane.

[0028] Furthermore, among the three first power terminals 31, the pin portions 31 of the first power terminals 31 located on both sides are symmetrically distributed along the pin portion of the first power terminal 31 located in the middle. The pin portion 313 of the first power terminal 31 located in the middle is led out from the area between the two signal terminals 2.

[0029] Combination Figure 9 , Figure 10 As shown, the second power terminal 32 also includes a contact portion 321, a connecting portion 322, and a pin portion 323, all integrally formed from metal. The end of the pin portion 323 is formed with a connection hole 3230 for connecting to an external wire.

[0030] The second power terminal 32 is vertically fixed to the top surface of the insulating base 1 along the axial direction via its own connecting seat 324. The fixing method is the same as that of the first power terminal 31, and the pins of the two second power terminals 32 are symmetrically distributed along the pins of the first power terminal 31 located in the middle.

[0031] The pin portion 323 of the second power terminal 32 differs in structure from the pin portion 313 of the first power terminal 31. The pin portion 323 of the second power terminal 32 extends from the end of its connecting portion 322, and after multiple bends to form a downwardly extending clearance groove 320, it finally extends horizontally from the side of the insulating base 1. This design is adopted because, when the pin portion 323 of the second power terminal 32 extends horizontally, it needs to pass through the distribution area of ​​the first conductive terminal 31 and the signal terminal 2. To avoid interference with the pin portions of other terminals during the extension process, a downwardly extending clearance groove 320 is formed. The space formed by the clearance groove 320 ensures that the pin portion 323 of the second power terminal 32 maintains a sufficient distance from the pin portions of other terminals.

[0032] Combination Figure 2 , Figure 4As shown, since a clearance groove 320 is formed on the pin portion 323 of the second power terminal 32, a protrusion 11 is formed on the bottom surface of the insulating base 1 corresponding to the clearance groove 320, and the protrusion 11 effectively covers the clearance groove 320. Of course, the clearance groove 320 can also be partially covered by increasing the thickness of the insulating base 1 as a whole.

[0033] Combination Figure 2 , Figure 3 As shown, the final form of this example is as follows: all pins of the power terminal group 20 extend from the side of the insulating base 1, and the pins of each power terminal extend from the side of the insulating base 1 in a radial pattern with different directions, and the ends of all the pins are at the same horizontal plane or substantially at the same horizontal plane. In this way, sufficient spacing is formed between the ends of each pin, which facilitates subsequent soldering to external power lines.

[0034] See Figure 11 As shown, this is Embodiment Two of the present invention. The difference from Embodiment One is that in Embodiment Two, the ends of the pins 313 and 323 extending from the side of the insulating base 1 of the power terminal group 30 are respectively connected to a plug-in terminal 341 via wires 34. The end of the plug-in terminal 341 has a plug-in portion for mating with an external power supply box. All plug-in terminals 341 are fixedly connected by a positioning base 35, so that all plug-in portions are parallel and evenly spaced after extending from the positioning base 35.

[0035] In this second embodiment, one end of the wire 34 is first connected to the ends of the pins 313 and 323 by welding, and the other end is connected to the plug terminal 341 by welding, terminal insertion, or other methods. A plastic positioning seat 35 is then integrally injection molded. In this way, the plug terminal 341 and the positioning seat 35 form a plug structure. In subsequent use, the length of the wire 34 is set as needed, and then the plug terminal 341 is directly plugged into the external power supply box, simplifying the subsequent assembly process.

[0036] This invention can be used not only for the terminal block in the charging gun socket, but also for the terminal block in the charging gun plug. It only requires replacing the corresponding signal terminal and power terminal.

[0037] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A charging gun terminal block, comprising: An insulating base, and a signal terminal group and a power terminal group disposed on the insulating base, characterized in that: Each power terminal in the power terminal group includes an integrally formed contact portion, a connecting portion, and a pin portion. The contact portion is disposed vertically on the top surface of the insulating base. The pin portion extends from the end of the connecting portion, is bent, and then leads out from the side of the insulating base. The pin portion of each power terminal leads out from the side of the insulating base in a different direction, that is, the pin portions in the power terminal group are radially distributed.

2. The charging gun terminal block of claim 1, wherein: The power terminal group is distributed according to its position as follows: a first power terminal located in the front row and close to the side where the pins are led out of the insulating base, and a second power terminal located in the rear row away from the side where the pins are led out of the insulating base. The first power terminals are arranged at uniform intervals laterally. The second power terminals are arranged at uniform intervals laterally. The pin portion of the second power terminal is led out from the area between two adjacent first power terminals.

3. A charging gun terminal block according to claim 2, characterized in that: The power terminal group includes five power terminals, of which three are first power terminals and two are second power terminals; Of the three first power terminals, the pin portions of the first power terminals located on both sides are symmetrically distributed along the pin portion of the first power terminal located in the middle. The pin portions of the two second power terminals are symmetrically distributed along the pin portion of the first power terminal located in the middle.

4. The charging gun terminal block of claim 2, wherein: The pin portion of the first power terminal extends from the end of its connection portion, and after being horizontally bent, is led out from the side of the insulating base.

5. The charging gun terminal block of claim 2, wherein: The pin portion of the second power terminal extends from the end of its connection portion, and after being bent multiple times to form a clearance groove, it is finally led out horizontally from the side of the insulating base.

6. The charging gun terminal block of claim 1, wherein: Each power terminal in the power terminal group has an integrally injection-molded connecting seat on its connecting part. The connecting seat is integrally injection-molded and fixedly connected to the insulating seat or snap-fitted.

7. The charging gun terminal block of claim 1, wherein: All pins have connection holes at their ends, and the pins of all power terminals are at the same horizontal plane.

8. The charging gun terminal block of claim 1, wherein: The ends of all power terminal pins are connected to a plug terminal via wires, and the ends of the plug terminal form a plug portion for interfacing with an external power supply box.

9. A charging gun terminal block according to claim 8, characterized in that: All plug terminals are fixedly connected by positioning seats, so that all plug parts are parallel and evenly spaced after extending from the positioning seats.

10. A charging gun terminal block according to any one of claims 1-9, characterized in that The signal terminal group includes two signal terminals. The signal terminals are fixed vertically to the top surface of the insulating base. After the signal line is electrically connected to the signal terminal, it is led out from the side of the insulating base, and the lead-out direction of the signal line is different from the lead-out direction of the pin.

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