Wire end connector and connector assembly

Abstract

The utility model provides a wire end connector and a connector assembly, and relates to the technical field of connectors, and the connector assembly comprises an insulation housing which is internally provided with a first electric connection part, a second electric connection part and a third electric connection part in sequence along the length direction, and is respectively connected with a first cable, a second cable and a third cable, one of the first electric connection part, the second electric connection part and the third electric connection part is a power supply connection part, and at least one of the first electric connection part, the second electric connection part and the third electric connection part is a signal connection part; the through groove is formed in the top of the insulating shell; the injection molding body is arranged in the insulating shell and wraps at least part of the first electric connection part, at least part of the second electric connection part, at least part of the third electric connection part, at least part of the first cable, at least part of the second cable and at least part of the third cable, and part of the injection molding body is arranged in the through groove; the problems that in the prior art, a wire end connector is single in function, large in occupied space and difficult to set to be low enough are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and more specifically, relates to a line end connector and a connector assembly. Background Art

[0002] At present, for high-speed connectors, usually only one terminal group and electrical connection part are provided. However, when multiple interfaces are required for plugging, a large number of connectors are required, so the overall space occupied is large, which is not conducive to product layout. Therefore, it is expected to develop a line end connector and connector assembly that can connect multiple electrical connections and has a compact structure and is as low as possible. Utility Model Content

[0003] The purpose of the utility model is to provide a line end connector and a connector assembly to solve the problems that the line end connector in the prior art has a single function, occupies a large space, and is difficult to be set low enough.

[0004] In order to achieve the above object, the utility model provides a line end connector, comprising:

[0005] An insulating housing, wherein a first electrical connection portion, a second electrical connection portion, and a third electrical connection portion are sequentially arranged inside the insulating housing along the length direction thereof, the first electrical connection portion, the second electrical connection portion, and the third electrical connection portion are respectively connected to a first cable, a second cable, and a third cable, one of the first electrical connection portion, the second electrical connection portion, and the third electrical connection portion is a power connection portion, and at least one of the first electrical connection portion, the second electrical connection portion, and the third electrical connection portion is a signal connection portion;

[0006] A through groove, wherein the through groove is provided on the top of the insulating housing;

[0007] An injection-molded body, wherein the injection-molded body is disposed in the insulating shell and wraps at least a portion of the first electrical connection portion, at least a portion of the second electrical connection portion, at least a portion of the third electrical connection portion, at least a portion of the first cable, at least a portion of the second cable, and at least a portion of the third cable, and a portion of the injection-molded body is disposed in the through groove.

[0008] Optionally, a plug-in portion and a first positioning portion extending downward are provided at the bottom of the insulating shell.

[0009] Optionally, the first electrical connection portion is a power connection portion, and the second electrical connection portion is a sideband signal connection portion.

[0010] Optionally, the third electrical connection portion includes at least one of a sideband signal connection portion and a differential signal connection portion.

[0011] Optionally, a wire outlet is provided on one side of the insulating shell, the first cable, the second cable and the third cable extend outward through the wire outlet, and the wire outlet is filled with the injection molded body.

[0012] Optionally, the through groove is formed on the top of the insulating shell above the first electrical connection portion.

[0013] Optionally, the through groove is formed on the top of the insulating shell above the second electrical connection portion and the third electrical connection portion.

[0014] Optionally, it also includes a printed circuit board, the lower part of the printed circuit board extends downward to form a first plug-in board part and a second plug-in board part, a first gap is arranged between the first plug-in board part and the second plug-in board part, the first electrical connection part and the second electrical connection part are arranged on the first plug-in board part at intervals, the third electrical connection part is arranged on the second plug-in board part, the through groove includes a first through groove and a second through groove, the first through groove is arranged above the first plug-in board part, and the second through groove is arranged above the second plug-in board part.

[0015] Optionally, the first electrical connection portion includes a first conductive sheet arranged on the surface of the first plug-in portion, the second electrical connection portion includes a second conductive sheet arranged on the surface of the first plug-in portion, and the third electrical connection portion includes a third conductive sheet arranged on the surface of the second plug-in portion, and the width of the first conductive sheet is greater than the width of the second conductive sheet and greater than the width of the third conductive sheet.

[0016] Optionally, the plug-in portion is provided on at least the front side of the bottom of the insulating shell, a lock buckle is provided on the plug-in portion located on the front side of the bottom of the insulating shell, and a lock protrusion is provided on the lock buckle.

[0017] Optionally, the plug-in portion includes a first plug-in portion and a second plug-in portion, the first plug-in portion is located at least on the front side of the first plug-in plate portion, the second plug-in portion is located at least on the front side of the second plug-in plate portion, and the first positioning portion is located between the first plug-in portion and the second plug-in portion adjacent thereto.

[0018] Optionally, the lock buckle includes a lock plate bent into a U shape, one side of the lock plate is snapped into a lock groove on the surface of the plug-in portion, the other side of the lock plate is a free end and exposed, and the two lock protrusions are arranged on the outside of the other side of the lock plate.

[0019] Optionally, a second positioning portion extending downward is provided at the bottom of the left side and the right side of the insulating shell.

[0020] Optionally, it further includes a printed circuit board, the lower part of which extends downward to form an integral plug-in board portion, and the first electrical connection portion, the second electrical connection portion and the third electrical connection portion are arranged on the plug-in board portion at intervals.

[0021] Optionally, the plug-in portion and the first positioning portion are arranged on at least a front side of the plug-in plate portion.

[0022] Optionally, a second positioning portion extending downward is provided at the bottom of the left side or the right side of the insulating shell.

[0023] The utility model also provides a connector assembly, comprising:

[0024] The above-mentioned line end connector;

[0025] Board-side connector.

[0026] Optionally, the board-side connector includes:

[0027] An insulator, wherein a first terminal group, a second terminal group and a third terminal group are sequentially arranged inside the insulator along its length direction, and the first terminal group, the second terminal group and the third terminal group are plug-matched with the first electrical connection part, the second electrical connection part and the third electrical connection part respectively.

[0028] Optionally, the bottom of the insulating housing is provided with a plug-in portion and a first positioning portion extending downward; the board-end connector further includes:

[0029] A shell, wherein the shell is sleeved on the outside of the insulator, a plug-in slot is formed between at least one of the front side surface and the rear side surface of the insulator and the shell, and at least a portion of the front end surface and / or the rear end surface of the shell is recessed inward to form a positioning slot; the plug-in slot is plug-fitted with the plug-in portion, and the positioning slot is plug-fitted with the first positioning portion.

[0030] The utility model provides a line end connector and a connector assembly, which have the beneficial effects of: the line end connector integrates a first electrical connection part, a second electrical connection part and a third electrical connection part, including a power connection part and a signal connection part, is functionally rich and space-saving, and the through groove on the top of the insulating shell can accommodate part of the injection-molded body, expanding the space of the insulating shell to accommodate the injection-molded body, so that the insulating shell can be set lower and can also meet the functional realization of the injection-molded body.

[0031] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0033] Figure 1 A structural schematic diagram of a line end connector from one viewing angle according to the first embodiment of the utility model is shown.

[0034] Figure 2 A schematic structural diagram of a line end connector from another perspective according to the first embodiment of the utility model is shown.

[0035] Figure 3 A schematic structural diagram of a connector assembly according to the first embodiment of the utility model is shown.

[0036] Figure 4 A schematic diagram of the exploded structure of a connector assembly according to the first embodiment of the utility model is shown.

[0037] Figure 5 A structural schematic diagram of a line end connector from one viewing angle according to the second embodiment of the utility model is shown.

[0038] Figure 6 A structural schematic diagram of a line end connector from another perspective according to the second embodiment of the utility model is shown.

[0039] Description of reference numerals:

[0040] 1. Insulating shell; 2. First electrical connection part; 3. Second electrical connection part; 4. Third electrical connection part; 5. First positioning part; 6. Locking protrusion; 7. Wire outlet; 8. Lock buckle; 9. Injection molding; 10. First plug-in part; 11. Second plug-in part; 12. Through groove; 13. Second positioning part; 14. Shell; 15. Locking hole; 16. Positioning groove; 17. Insertion plate part; 18. Plug-in part. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0042] Embodiment 1

[0043] like Figure 1 and Figure 2As shown, the utility model provides a line end connector, comprising:

[0044] An insulating housing 1, wherein a first electrical connection portion 2, a second electrical connection portion 3 and a third electrical connection portion 4 are sequentially arranged inside the insulating housing 1 along its length direction, the first electrical connection portion 2, the second electrical connection portion 3 and the third electrical connection portion 4 are respectively connected to a first cable, a second cable and a third cable, one of the first electrical connection portion 2, the second electrical connection portion 3 and the third electrical connection portion 4 is a power connection portion, and at least one of the first electrical connection portion 2, the second electrical connection portion 3 and the third electrical connection portion 4 is a signal connection portion;

[0045] A through slot 12, which is provided on the top of the insulating housing 1;

[0046] The injection-molded body 9 is arranged in the insulating shell 1, and wraps at least part of the first electrical connection part 2, at least part of the second electrical connection part 3, at least part of the third electrical connection part 4, at least part of the first cable, at least part of the second cable and at least part of the third cable. Part of the injection-molded body 9 is arranged in the through groove 12.

[0047] Specifically, in order to solve the problems in the prior art that the line end connector has a single function, occupies a large space, and is difficult to be set low enough, the line end connector provided by the utility model integrates a first electrical connection part 2, a second electrical connection part 3 and a third electrical connection part 4, including a power connection part and a signal connection part, is rich in functions and saves space, and the through groove 12 on the top of the insulating shell 1 can accommodate part of the injection molded body 9, expanding the space of the insulating shell 1 to accommodate the injection molded body 9, so that the insulating shell 1 can be set lower and can also meet the functional realization of the injection molded body 9.

[0048] Optionally, a plug-in portion and a first positioning portion 5 extending downward are provided at the bottom of the insulating housing 1 .

[0049] Specifically, the plug-in portion can be plugged into and matched with the plug-in slot on the board-end connector, and the first positioning portion 5 can be plugged into and matched with the positioning slot 16 on the board-end connector, providing further plug-in positioning for the plug-in of the line-end connector and improving the stability of the plug-in.

[0050] Optionally, the first electrical connection portion 2 is a power connection portion, and the second electrical connection portion 3 is a sideband signal connection portion.

[0051] Specifically, the line-end connector realizes the integration of power connection and sideband signal connection through the setting of the power connection part and the sideband signal connection part, expands the function of the line-end connector, realizes a multifunctional integrated design, and realizes the integration of the functions of the electrical connector on the basis of the integration of the number of electrical connection parts.

[0052] Optionally, the third electrical connection portion 4 includes at least one of a sideband signal connection portion and a differential signal connection portion.

[0053] Specifically, at least one of a sideband signal and a differential signal may be selected as required as the signal transmitted by the third electrical connection portion 4 to achieve diversity in signal transmission.

[0054] In this embodiment, the first electrical connection portion 2 is a power connection portion, the second electrical connection portion 3 is a sideband signal connection portion, and the third electrical connection portion 4 is a differential signal connection portion.

[0055] Optionally, a wire outlet 7 is provided on one side of the insulating housing 1 , and the first cable, the second cable and the third cable extend outward through the wire outlet 7 , and the wire outlet 7 is filled with an injection molding body 9 .

[0056] Specifically, the line end connector can be divided into a front line outlet connector and a rear line outlet connector according to different line outlet directions; an injection molded body 9 is injection molded in the line outlet 7, which wraps and fixes the cable and the components connected to the cable, thereby improving the overall structural strength of the line end connector.

[0057] Optionally, a through slot 12 is formed on the top of the insulating housing 1 above the first electrical connection portion 2 .

[0058] Specifically, the first electrical connection part 2 is a power connection part, and the first cable connected thereto is a power cable. The second cable and the third cable are both flat cables. Compared with the second cable and the third cable, the first cable is a round cable and occupies a larger vertical space, resulting in a smaller injection space for the injection molded body 9 above the first cable. Therefore, a through groove 12 is opened above the first electrical connection part 2. The through groove 12 is used to expand the accommodating space of the injection molded body 9, which ensures the fixing strength of the first cable and at the same time makes the insulating shell 1 above the first cable lower, thereby reducing the height of the segment connector.

[0059] Optionally, a through slot 12 is formed on the top of the insulating housing 1 above the second electrical connection portion 3 and the third electrical connection portion 4 .

[0060] Specifically, the through slot 12 may also be opened above the second electrical connection portion 3 and the third electrical connection portion 4, which can also allow the insulating housing 1 above the second cable and the third cable to be made lower and improve the fixing strength of the second cable and the third cable.

[0061] Optionally, it also includes a printed circuit board, the lower part of the printed circuit board extends downward to form a first plug-in board part and a second plug-in board part, a first gap is arranged between the first plug-in board part and the second plug-in board part, the first electrical connection part 2 and the second electrical connection part 3 are arranged on the first plug-in board part at intervals, the third electrical connection part 4 is arranged on the second plug-in board part, and the through groove 12 includes a first through groove 12 and a second through groove 12, the first through groove 12 is arranged above the first plug-in board part, and the second through groove 12 is arranged above the second plug-in board part.

[0062] Specifically, the first electrical connection part 2, the second electrical connection part 3 and the third electrical connection part 4 are integrated on the same printed circuit board, and the circuit board is provided with a first plug-in board part and a second plug-in board part extending downward, and the first plug-in board part and the second plug-in board part are provided with gold fingers for plugging with the terminal group on the board-end connector; the first electrical connection part 2 and the second electrical connection part 3 are arranged on the same first plug-in board part, and a sufficient electrical gap is maintained between the two, and a sufficient electrical gap is maintained between adjacent third electrical connection parts 4 through the second gap, and different third electrical connection parts 4 are respectively located on different second plug-in board parts, forming more than one plug-in structure to ensure the stability of plug-in; at the same time, the through groove 12 is not an integrated structure, but includes mutually independent first through grooves 12 and second through grooves 12, the first through groove 12 corresponds to the position of the first plug-in board part, and each second through groove 12 corresponds to the position of a second plug-in board part.

[0063] In this embodiment, two second plugging plate parts are provided, and a second gap is formed between adjacent second plugging plate parts.

[0064] Optionally, the first electrical connection part 2 includes a first conductive sheet arranged on the surface of the first plug-in part, the second electrical connection part 3 includes a second conductive sheet arranged on the surface of the first plug-in part, and the third electrical connection part 4 includes a third conductive sheet arranged on the surface of the second plug-in part, and the width of the first conductive sheet is greater than the width of the second conductive sheet and greater than the width of the third conductive sheet.

[0065] Specifically, the first conductive sheet, the second conductive sheet and the third conductive sheet are gold fingers on the printed circuit board. The first conductive sheet of the first electrical connection part 2, which serves as a power connection part, is wider than the second conductive sheet and the third conductive sheet and is used to transmit power. The diameter of the first cable connected thereto is also larger than the single diameter of the second cable and the third cable. Therefore, the space for accommodating the injection molding body 9 in the insulating shell 1 above the first electrical connection part 2 is the smallest, and a through groove 12 is most needed to accommodate enough injection molding bodies 9 when the insulating shell 1 is in a relatively low state, so as to fix the first cable and the components connected thereto.

[0066] Optionally, at least the front side of the bottom of the insulating housing 1 is provided with an inserting portion, a lock buckle 8 is provided on the inserting portion located on the front side of the bottom of the insulating housing 1 , and a locking protrusion 6 is provided on the lock buckle 8 .

[0067] Specifically, a lock buckle 8 is provided on the plug-in portion on the front side of the insulating shell 1, and the wire outlet 7 is located on the rear side of the insulating shell 1 to form a connector for rear-side wire outlet, and vice versa to form a front-side wire outlet connector. The lock buckle 8 and the wire outlet 7 are respectively located on both sides of the insulating shell 1, which is convenient for operating the lock buckle 8.

[0068] In one example, a plug-in portion is also provided on the rear side of the insulating housing 1 .

[0069] Optionally, the plug-in portion includes a first plug-in portion 10 and a second plug-in portion 11, the first plug-in portion 10 is located at least on the front side of the first plug-in plate portion, the second plug-in portion 11 is located at least on the front side of the second plug-in plate portion, and the first positioning portion 5 is located between the first plug-in portion 10 and the second plug-in portion 11 adjacent thereto.

[0070] Specifically, the first plug-in portion 10 , the first positioning portion 5 , and the second plug-in portion 11 are sequentially arranged along the length direction of the insulating housing 1 to form a plurality of relatively independent plug-in structures, which is beneficial to improving the stability of plug-in.

[0071] Optionally, the lock buckle 8 includes a lock plate bent into a U shape, one side of the lock plate is snapped into a lock groove on the surface of the plug-in portion, the other side of the lock plate is a free end and exposed, and two lock protrusions 6 are arranged on the outside of the other side of the lock plate.

[0072] Specifically, the lock plate bent into a U shape is elastic. When the other side of the lock plate is pressed, the lock protrusion 6 on the other side of the lock plate can be driven to retract from the lock hole 15 on the board-end connector. At this time, the line-end connector can be pulled out. In order to facilitate the pulling out and unlocking of the lock buckle 8, a pull strap can be provided at the upper end of the other side of the lock plate. By pulling the pull strap, the lock buckle 8 can be unlocked and the line-end connector can be pulled out.

[0073] In this embodiment, a second plugging portion 11 is disposed on the front side and the rear side of each second plugging plate portion, and a third gap is formed between two adjacent second plugging portions 11 along the length direction of the insulating housing 1 .

[0074] In this embodiment, a protrusion is provided on the front side of the insulating housing 1, and the first plug-in portion 10 and the first positioning portion 5 are located at the bottom of the protrusion; and / or

[0075] A fourth gap is provided between the first positioning portion 5 and the first plugging portion 10 and between the first positioning portion 5 and the second plugging portion 11 .

[0076] Specifically, in order to adapt to the size of the shell 14 where the first terminal group and the second terminal group of the board-end connector are located, a protrusion is set on the end face of the insulating shell 1, and the first plug-in portion 10 and the first positioning portion 5 are at the bottom of the protrusion, and the first plug-in portion 10 and the first positioning portion 5 protrude outward compared to the second plug-in portion 11.

[0077] Optionally, a second positioning portion 13 extending downward is provided at the bottom of the left side and the right side of the insulating housing 1 .

[0078] Specifically, a fifth gap is provided between the second positioning portion 13 and the plug-in portion. When the line-end connector is plugged into the corresponding board-end connector, the two second positioning portions 13 respectively fit the outer side of the shell 14 of the board-end connector to play a role in plug-in positioning and guiding, thereby further improving the stability of plug-in.

[0079] In this embodiment, the first plug-in portion 10 and the second plug-in portion 11 are plate-shaped, the first positioning portion 5 is column-shaped, and the second positioning portion 13 is plate-shaped.

[0080] like Figure 3 and Figure 4 As shown, the utility model also provides a connector assembly, including:

[0081] The above-mentioned line end connector;

[0082] Board-side connector.

[0083] Optionally, the board-side connector includes:

[0084] An insulator, wherein a first terminal group, a second terminal group and a third terminal group are sequentially arranged inside the insulator along its length direction, and the first terminal group, the second terminal group and the third terminal group are plugged and matched with the first electrical connection part 2, the second electrical connection part 3 and the third electrical connection part 4 respectively.

[0085] Optionally, the bottom of the insulating housing 1 is provided with a plug-in portion and a first positioning portion 5 extending downward; the board-end connector further includes:

[0086] The shell 14 is sleeved on the outside of the insulator, and a plug-in groove is formed between at least one of the front side and the rear side of the insulator and the shell 14. At least part of the front end face and / or the rear end face of the shell 14 is recessed inward to form a positioning groove 16; the plug-in groove is plug-fitted with the plug-in portion, and the positioning groove 16 is plug-fitted with the first positioning portion 5.

[0087] Specifically, the wire-end connector is an integrated wire-end connector. When the wire-end connector is plugged into the above-mentioned board-end connector, the plug-in portion is inserted into the plug-in slot, and the first positioning portion 5 is inserted into the positioning slot 16, so as to realize the plug-in and fixation of the wire-end connector on the board-end connector; at the same time, due to the setting of the through slot 12 of the wire-end connector, it can be made lower, so that when the connector assembly is connected, the overall height is lower, saving space.

[0088] Embodiment 2

[0089] like Figure 5 and Figure 6 As shown, the difference between this embodiment and the first embodiment is that:

[0090] In this embodiment, a printed circuit board is further included. The lower part of the printed circuit board extends downward to form an integral plug-in board portion 17 . The first electrical connection portion 2 , the second electrical connection portion 3 and the third electrical connection portion 4 are arranged on the plug-in board portion 17 at intervals.

[0091] Specifically, the line end connector in this embodiment has a smaller size and a more compact structure. The first electrical connection part 2, the second electrical connection part 3 and the third electrical connection part 4 are all arranged on a plug-in part 17. Accordingly, it only requires a plug-in part 18 and a first positioning part 5 to achieve stable plug-in.

[0092] In the present embodiment, the insertion portion 18 and the first positioning portion 5 are disposed at least on the front side of the insertion plate portion 17 .

[0093] Further, such as Figure 6 As shown, the plug-in portion 18 and the first positioning portion 5 are arranged in pairs, and each pair of the plug-in portion 18 and each pair of the first positioning portion 5 are respectively located at the front and rear sides of the plug-in portion 17, which can improve the stability and front-to-back synchronization during plugging and unplugging.

[0094] In this embodiment, a second positioning portion 13 extending downward is provided at the bottom of the left side or the right side of the insulating housing 1 .

[0095] Specifically, the wire end connector is only provided with a second positioning portion 13 on one side of the insulating shell 1, and no second positioning portion 13 is provided on the other side of the insulating shell 1, so that the wire end connector can be inserted at the edge of the board end connector, and other wire end connectors can also be inserted at other positions of the board end connector.

[0096] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A line end connector, It is characterized in that include: An insulating housing, wherein a first electrical connection portion, a second electrical connection portion, and a third electrical connection portion are sequentially arranged inside the insulating housing along the length direction thereof, the first electrical connection portion, the second electrical connection portion, and the third electrical connection portion are respectively connected to a first cable, a second cable, and a third cable, one of the first electrical connection portion, the second electrical connection portion, and the third electrical connection portion is a power connection portion, and at least one of the first electrical connection portion, the second electrical connection portion, and the third electrical connection portion is a signal connection portion; A through groove, wherein the through groove is provided on the top of the insulating housing; An injection-molded body, wherein the injection-molded body is disposed in the insulating shell and wraps at least a portion of the first electrical connection portion, at least a portion of the second electrical connection portion, at least a portion of the third electrical connection portion, at least a portion of the first cable, at least a portion of the second cable, and at least a portion of the third cable, and a portion of the injection-molded body is disposed in the through groove.

2. The wire end connector according to claim 1, It is characterized in that The bottom of the insulating shell is provided with a plug-in portion and a first positioning portion extending downward.

3. The wire end connector according to claim 1, It is characterized in that The first electrical connection portion is a power connection portion, and the second electrical connection portion is a sideband signal connection portion.

4. The wire end connector according to claim 3, It is characterized in that The third electrical connection portion includes at least one of a sideband signal connection portion and a differential signal connection portion.

5. The wire end connector according to claim 1, It is characterized in that A wire outlet is provided on one side of the insulating housing, the first cable, the second cable and the third cable extend outward through the wire outlet, and the injection molded body is filled in the wire outlet.

6. The wire end connector according to claim 3, It is characterized in that The through slot is formed on the top of the insulating shell above the first electrical connection portion.

7. The wire end connector according to claim 6, It is characterized in that The through groove is formed on the top of the insulating shell above the second electrical connection part and the third electrical connection part.

8. The wire end connector according to claim 2, It is characterized in that It also includes a printed circuit board, the lower part of the printed circuit board extends downward to form a first plug-in board part and a second plug-in board part, a first gap is arranged between the first plug-in board part and the second plug-in board part, the first electrical connection part and the second electrical connection part are arranged on the first plug-in board part at intervals, the third electrical connection part is arranged on the second plug-in board part, the through groove includes a first through groove and a second through groove, the first through groove is arranged above the first plug-in board part, and the second through groove is arranged above the second plug-in board part.

9. The wire end connector according to claim 8, It is characterized in that The first electrical connection portion includes a first conductive sheet arranged on the surface of the first plug-in portion, the second electrical connection portion includes a second conductive sheet arranged on the surface of the first plug-in portion, and the third electrical connection portion includes a third conductive sheet arranged on the surface of the second plug-in portion, and the width of the first conductive sheet is greater than the width of the second conductive sheet and greater than the width of the third conductive sheet.

10. The wire end connector according to claim 8, It is characterized in that The plug-in portion is provided on at least the front side of the bottom of the insulating shell, a lock buckle is provided on the plug-in portion located on the front side of the bottom of the insulating shell, and a lock protrusion is provided on the lock buckle.

11. The wire end connector according to claim 10, It is characterized in that The plug-in portion includes a first plug-in portion and a second plug-in portion, the first plug-in portion is located at least on the front side of the first plug-in plate portion, the second plug-in portion is located at least on the front side of the second plug-in plate portion, and the first positioning portion is located between the first plug-in portion and the second plug-in portion adjacent thereto.

12. The wire end connector according to claim 10, It is characterized in that The lock buckle comprises a lock plate bent into a U shape, one side of the lock plate is clamped in a lock groove on the surface of the plug-in portion, the other side of the lock plate is a free end and exposed, and the two lock protrusions are arranged on the outer side of the other side of the lock plate.

13. The wire end connector according to claim 1, It is characterized in that The bottoms of the left side and the right side of the insulating shell are provided with second positioning parts extending downwards.

14. The wire end connector according to claim 2, It is characterized in that It also includes a printed circuit board, the lower part of which extends downward to form an integral plug-in board portion, and the first electrical connection portion, the second electrical connection portion and the third electrical connection portion are arranged on the plug-in board portion at intervals.

15. The wire end connector according to claim 14, It is characterized in that The plug-in portion and the first positioning portion are disposed at least on the front side of the plug-in portion.

16. The wire end connector according to claim 14, It is characterized in that A second positioning portion extending downward is provided at the bottom of the left side or the right side of the insulating shell.

17. A connector assembly, It is characterized in that include: The wire end connector according to any one of claims 1 to 16; Board-side connector.

18. The connector assembly according to claim 17, It is characterized in that The board-side connector comprises: An insulator, wherein a first terminal group, a second terminal group and a third terminal group are sequentially arranged inside the insulator along its length direction, and the first terminal group, the second terminal group and the third terminal group are plug-matched with the first electrical connection part, the second electrical connection part and the third electrical connection part respectively.

19. The connector assembly according to claim 18, It is characterized in that The bottom of the insulating housing is provided with a plug-in portion and a first positioning portion extending downward; the board-end connector also includes: A shell, wherein the shell is sleeved on the outside of the insulator, a plug-in slot is formed between at least one of the front side surface and the rear side surface of the insulator and the shell, and at least a portion of the front end surface and / or the rear end surface of the shell is recessed inward to form a positioning slot; the plug-in slot is plug-fitted with the plug-in portion, and the positioning slot is plug-fitted with the first positioning portion.

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