Connector assembly and large-current transverse BTB connector thereof

Abstract

The utility model discloses a connector assembly and a large-current transverse BTB connector thereof, and relates to the technical field of connectors, and the large-current transverse BTB connector comprises a printed circuit board; the connector shell is provided with at least one cavity, the first end of the connector shell is detachably connected with the printed circuit board, and the second end of the connector shell is provided with a first slot used for being inserted into an opponent piece; the terminals and the printed circuit board are distributed in parallel, one end of each terminal is provided with a through hole, the other end of each terminal is provided with a second slot used for being inserted into an opponent piece, the second slots and the first slots are distributed in an aligned mode, and the at least two terminals are stacked in the same cavity; the first end of the communication rod is connected with the printed circuit board, the second end of the communication rod is inserted into the through hole, and the communication rod is provided with a limiting table used for limiting the position of the terminal. According to the device, the forming process difficulty of the transverse connector terminal can be simplified, the low-size space is guaranteed, and meanwhile the requirement for stable large-current transmission is met.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, and more specifically, to a high-current transverse BTB connector and a connector assembly comprising the high-current transverse BTB connector. Background Art

[0002] In the existing technology, BTB (Board-to-board Connectors) is the connector product with the strongest signal transmission capability among all connector product types, and is mainly used in power systems, communication networks, home appliances, military manufacturing and other industries. With the development of new energy vehicles, board-to-board connectors have gradually separated from traditional low-voltage signal connectors. Compared with traditional low-voltage automotive connectors, the operating conditions of new energy vehicle connectors are more complex and changeable, and the requirements for the electrical contact reliability and current carrying capacity of board-to-board connectors are higher.

[0003] However, traditional horizontal board-to-board connectors are often used for signal interconnection and cannot carry the high current requirements of new energy vehicle modules. In addition, traditional high-current horizontal connectors usually use 90-degree bent terminals, which are costly and complex in structure, increasing the difficulty of assembling the connector itself. In addition, since the bent part of the 90-degree bent terminal is relatively large, it will take up a lot of space and is not suitable for use in high-density modules that require small size and high current.

[0004] In summary, how to simplify the molding process difficulty of the lateral connector terminal and ensure a small size space while providing the requirement of stable high current transmission is an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a high-current lateral BTB connector, which can simplify the difficulty of the molding process of the lateral connector terminal, ensure a low-size space, and provide the requirements of stable high-current transmission.

[0006] Another object of the present invention is to provide a connector assembly including the above-mentioned high-current lateral BTB connector.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A high current lateral BTB connector, comprising:

[0009] Printed circuit boards;

[0010] A connector housing, which is provided with at least one chamber, wherein a first end of the connector housing is detachably connected to the printed circuit board, and a second end of the connector housing is provided with a first slot for plugging with a counterpart;

[0011] A terminal is arranged parallel to the printed circuit board, one end of the terminal is provided with a through hole, the other end of the terminal is provided with a second slot for plugging with the counterpart, the second slot is aligned with the first slot, and at least two terminals are stacked in the same chamber;

[0012] A connecting rod has a first end connected to the printed circuit board, a second end of the connecting rod is inserted into the through hole, and a limiting platform for limiting the position of the terminal is provided on the connecting rod.

[0013] In one embodiment, the connector housing is provided with two chambers, and three terminals are stacked in the same chamber.

[0014] In one embodiment, the terminal is a sheet-like structure.

[0015] In one embodiment, the printed circuit board is provided with an assembly hole, and the assembly hole is used for assembly with the first end of the connecting rod.

[0016] In one embodiment, the second end of the connecting rod is provided with four raised ribs, each of the raised ribs is evenly distributed along the circumference of the connecting rod, and the through hole is a plum blossom hole.

[0017] In one embodiment, the limit platform is a circular ring platform arranged on the outer periphery of the connecting rod, the first end of the connecting rod is a cylindrical structure, the circular ring platform is arranged between the top of the cylindrical structure and the bottom of the raised rib, and the maximum outer diameters of the first end and the second end of the connecting rod are both smaller than the outer diameter of the circular ring platform.

[0018] In one embodiment, the insertion end of the cylindrical structure is distributed in a truncated cone shape.

[0019] In one embodiment, protrusions are provided on both sides of the terminal, and a slot for engaging the protrusions is provided in the connector housing.

[0020] In one embodiment, the connecting rod comprises a copper rod.

[0021] A connector assembly comprises any one of the above-mentioned high-current lateral BTB connectors.

[0022] When using the high-current transverse BTB connector provided by the utility model, first, at least two terminals can be stacked in the same chamber of the connector housing. Then, the second end of the connecting rod is inserted into the through hole of at least two stacked terminals. For example, the second end of the connecting rod and the terminal can be riveted to each other. At this time, the position of the terminal at the bottom can be limited by the limit table. After that, the first end of the connecting rod can be connected to the printed circuit board, and the terminal is distributed parallel to the printed circuit board. Subsequently, the connector housing equipped with the terminal and the connecting rod can be connected to the printed circuit board. Finally, the counterpart can be inserted into the aligned second slot and the first slot to complete the plug-in operation of the high-current transverse BTB connector and the counterpart.

[0023] The device has a compact structure and can meet the space restrictions of BTB connectors for modules such as on-board chargers and power distribution units of new energy vehicles. Moreover, the connecting rods and terminals of the device can replace the 90-degree bent terminals originally used, effectively simplifying the difficulty of the molding process of the lateral connector terminals and ensuring a low-size space. In addition, the device includes at least two stacked terminals. Compared with the original 90-degree bent terminal, the terminals of the device can achieve a stable output of large currents (20A~200A).

[0024] In summary, the high-current lateral BTB connector provided by the present invention can simplify the difficulty of the molding process of the lateral connector terminal, ensure a low-size space, and provide the requirements for stable high-current transmission.

[0025] In addition, the utility model also provides a connector assembly including the above-mentioned high-current lateral BTB connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the structure of a high-current lateral BTB connector provided by the utility model;

[0028] Figure 2 It is a schematic diagram of the assembly of the high current lateral BTB connector and the counterpart;

[0029] Figure 3 This is an exploded view of a high current lateral BTB connector;

[0030] Figure 4is a schematic diagram of the structure of the connecting rod;

[0031] Figure 5 is a schematic diagram of the structure of the terminal;

[0032] Figure 6 It is a schematic diagram of the structure of the connector housing.

[0033] Reference numerals:

[0034] 1-connecting rod; 11-limiting platform; 12-raised rib; 2-terminal; 21-second slot; 22-through hole; 23-raised; 3-connector housing; 31-first slot; 32-chamber; 4-opposite piece; 5-printed circuit board; 51-assembly hole; 52-positioning hole; 6 is positioning column. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] The core of the utility model is to provide a high-current transverse BTB connector, which can simplify the molding process difficulty of the transverse connector terminal, ensure a low-size space, and provide the requirements of stable high-current transmission. Another core of the utility model is to provide a connector assembly including the above-mentioned high-current transverse BTB connector.

[0037] Please refer to Figures 1 to 6 , Figure 1 A schematic diagram of the structure of a high-current lateral BTB connector provided by the utility model; Figure 2 It is a schematic diagram of the assembly of the high current lateral BTB connector and the counterpart; Figure 3 This is an exploded view of a high current lateral BTB connector; Figure 4 is a schematic diagram of the structure of the connecting rod; Figure 5 is a schematic diagram of the structure of the terminal; Figure 6 It is a schematic diagram of the structure of the connector housing.

[0038] This specific embodiment provides a high-current lateral BTB connector, including:

[0039] Printed circuit board 5;

[0040] A connector housing 3 is provided with at least one chamber 32, a first end of the connector housing 3 is detachably connected to a printed circuit board 5, and a second end of the connector housing 3 is provided with a first slot 31 for plugging with a counterpart 4;

[0041] The terminal 2 is arranged parallel to the printed circuit board 5, one end of the terminal 2 is provided with a through hole 22, and the other end of the terminal 2 is provided with a second slot 21 for plugging with the counterpart 4, the second slot 21 and the first slot 31 are aligned, and at least two terminals 2 are stacked in the same chamber 32;

[0042] The connecting rod 1 has a first end connected to the printed circuit board 5 , and a second end of the connecting rod 1 is inserted into the through hole 22 . A limiting platform 11 for limiting the position of the terminal 2 is provided on the connecting rod 1 .

[0043] It should be noted that two chambers 32 can be set in the connector housing 3, and two positioning posts 6 can be set at the end of the connector housing 3, the positioning posts 6 are located between the two chambers 32, and the printed circuit board 5 is correspondingly provided with positioning holes 52 for respectively engaging with the two positioning posts 6, so that the positioning posts 6 and the positioning holes 52 can be engaged and fixed, thereby realizing the assembly operation of the connector housing 3 and the printed circuit board 5.

[0044] Furthermore, the diameters of the two positioning posts 6 are different, and the two positioning posts 6 are staggered, so that the connection effect between the connector housing 3 and the printed circuit board 5 is more stable. During the assembly process, the positioning posts 6 can guide the connection operation between the connector housing 3 and the printed circuit board 5 to ensure the position of the terminal 2 on the printed circuit board 5.

[0045] In actual use, the shape, structure, size, material, position, etc. of the printed circuit board 5, the connector housing 3, the terminal 2 and the connecting rod 1 can be determined according to actual conditions and actual needs.

[0046] When using the high-current transverse BTB connector provided by the utility model, first, at least two terminals 2 can be stacked and inserted into the same cavity 32 of the connector housing 3. Then, the second end of the connecting rod 1 is inserted into the through hole 22 of at least two stacked terminals 2. For example, the second end of the connecting rod 1 and the terminal 2 can be riveted together. At this time, the position of the terminal 2 located at the bottom can be limited by the limit platform 11. Afterwards, the first end of the connecting rod 1 can be connected to the printed circuit board 5. At this time, the terminal 2 and the printed circuit board 5 are distributed parallel. Subsequently, the connector housing 3 equipped with the terminal 2 and the connecting rod 1 can be connected to the printed circuit board 5. Finally, the counterpart 4 can be inserted into the aligned second slot 21 and the first slot 31 to complete the plug-in operation of the high-current transverse BTB connector and the counterpart 4. The structure is as shown in FIG. Figure 2 shown.

[0047] The device has a compact structure and can meet the space restrictions of the BTB connector of the on-board charger, power distribution unit and other modules of new energy vehicles. Moreover, the connecting rod 1 and the terminal 2 of the device can replace the 90-degree bent terminal originally used, effectively simplifying the difficulty of the molding process of the horizontal connector terminal and ensuring a low-size space. In addition, the device includes at least two stacked terminals 2. Compared with the original one that can only set one 90-degree bent terminal, the terminal of the device can achieve a stable output of large current (20A~200A).

[0048] In summary, the high-current lateral BTB connector provided by the present invention can simplify the difficulty of the molding process of the lateral connector terminal, ensure a low-size space, and provide the requirements for stable high-current transmission.

[0049] In one embodiment, the connector housing 3 is provided with two chambers 32, and three terminals 2 are stacked in the same chamber 32. Figure 1 and Figure 3 That is, two groups of terminals 2 are provided, each group of terminals 2 includes three terminals 2 stacked one above the other, each group of terminals 2 and the printed circuit board 5 are connected by the same connecting rod 1, and a stable output of a large current (20A~200A) can be achieved by stacking a plurality of terminals 2, that is, the current output is positively correlated with the number of stacked terminals 2.

[0050] In one embodiment, the terminal 2 is a sheet-like structure. The terminal 2 is set as a sheet-like structure, which is convenient for setting corresponding holes or grooves on the sheet-like structure, and also convenient for batch processing of the terminal 2. Moreover, after a plurality of sheet-like terminals 2 are stacked and assembled with the connector housing 3, the overall structure of the device is also relatively compact, and the output of current can be effectively increased.

[0051] In one embodiment, the printed circuit board 5 is provided with an assembly hole 51, and the assembly hole 51 is used to assemble with the first end of the connecting rod 1. After the first end of the connecting rod 1 is inserted into the assembly hole 51 of the printed circuit board 5, the first end of the connecting rod 1 and the printed circuit board 4 can be connected by riveting to improve the assembly connection effect of the printed circuit board 5 and the connecting rod 1.

[0052] In one embodiment, the second end of the connecting rod 1 is provided with four raised ribs 12, each of which is evenly distributed along the circumference of the connecting rod 1, and the through hole 22 is a plum blossom hole. When the second end of the connecting rod 1 and the terminal 2 are assembled, the second end of the connecting rod 1 can be inserted into the plum blossom hole of the terminal 2, and the connecting rod 1 and the terminal 2 are riveted to improve the assembly connection effect of the terminal 2 and the connecting rod 1. Moreover, the assembly effect of multiple raised ribs 12 and the plum blossom hole is more solid than that of the cylindrical structure and the round hole.

[0053] In one embodiment, the limiting platform 11 is a circular ring platform provided on the outer periphery of the connecting rod 1. The first end of the connecting rod 1 is a cylindrical structure. A circular ring platform is provided between the top of the cylindrical structure and the bottom of the raised rib 12. The maximum outer diameters of the first and second ends of the connecting rod 1 are both smaller than the outer diameter of the circular ring platform. Figure 4 For example, the first end of the connecting rod 1 can be connected to the printed circuit board 5 by riveting, the second end of the connecting rod 1 can be connected to the terminal 2 by riveting, and the terminal 2 at the bottom can be limited by the circular ring stage. By riveting the circular connecting rod 1 to the sheet-shaped terminal 2, stable transmission of large current can be achieved.

[0054] In one embodiment, the insertion end of the cylindrical structure is distributed in a truncated cone shape, so as to facilitate the insertion of the insertion end of the cylindrical structure into the printed circuit board 5 and avoid the insertion end of the cylindrical structure from causing damage to the printed circuit board 5 .

[0055] In one embodiment, both sides of the terminal 2 are provided with protrusions 23, the structure is as follows: Figure 5 As shown, the connector housing 3 is provided with a slot for engaging the protrusion 23. For example, the protrusion 23 can be set as a wave-shaped protrusion 23, and the slot can be set as a corresponding wave groove to ensure that the terminal 2 and the connector housing 3 are assembled in place, and to prevent the terminal 2 from being easily separated from the connector housing 3.

[0056] In one embodiment, the connecting rod 1 comprises a copper rod.

[0057] It should be noted that the copper rod has excellent electrical conductivity and is one of the commonly used conductor materials in the electronics industry. Because the electrical conductivity of the copper rod is higher than that of other materials, it can not only transmit electrical signals, but also withstand the heat energy brought by large currents. Moreover, the copper rod has a high hardness and is a material that tends to be a plastic material. It has good strength and toughness, is not easy to crack, and has good machinability. Therefore, setting the connecting rod 1 as a copper rod can effectively transmit electrical signals and is not prone to deformation and damage during the assembly process.

[0058] In addition to the above-mentioned high-current lateral BTB connector, the present invention also provides a connector assembly including the high-current lateral BTB connector disclosed in the above-mentioned embodiment. For the structures of other parts, please refer to the prior art and will not be described in detail herein.

[0059] It should be noted that the first end and the second end, the first slot 31 and the second slot 21 mentioned in the present invention, wherein the first and the second are only used to distinguish the different positions, and there is no order of precedence.

[0060] In addition, it should be noted that the directions or positional relationships indicated by "above" and "below" in the present invention are based on the directions or positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description and facilitating understanding. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0061] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referenced to each other. Any combination of all embodiments provided by the utility model is within the protection scope of this utility model and will not be described in detail here.

[0062] The above is a detailed introduction to the connector assembly and high-current lateral BTB connector provided by the utility model. This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A high current lateral BTB connector, characterized in that: include: Printed circuit board (5); A connector housing (3) provided with at least one chamber (32), a first end of the connector housing (3) being detachably connected to the printed circuit board (5), and a second end of the connector housing (3) being provided with a first slot (31) for plugging into a counterpart (4); A terminal (2) arranged in parallel with the printed circuit board (5), one end of the terminal (2) being provided with a through hole (22), the other end of the terminal (2) being provided with a second slot (21) for inserting into the counterpart (4), the second slot (21) and the first slot (31) being arranged in alignment, and at least two terminals (2) being stacked in the same chamber (32); A connecting rod (1) has a first end connected to the printed circuit board (5), a second end of the connecting rod (1) inserted into the through hole (22), and a limiting platform (11) for limiting the position of the terminal (2) is provided on the connecting rod (1).

2. The high current lateral BTB connector according to claim 1, characterized in that: The connector housing (3) is provided with two chambers (32), and three terminals (2) are stacked in the same chamber (32).

3. The high current lateral BTB connector according to claim 1, characterized in that: The terminal (2) is a sheet-like structure.

4. The high current lateral BTB connector according to claim 1, characterized in that: The printed circuit board (5) is provided with an assembly hole (51), and the assembly hole (51) is used for assembly with the first end of the connecting rod (1).

5. The high current lateral BTB connector according to any one of claims 1 to 4, characterized in that: The second end of the connecting rod (1) is provided with four raised ribs (12), each of the raised ribs (12) is evenly distributed along the circumference of the connecting rod (1), and the through hole (22) is a plum blossom hole.

6. The high current lateral BTB connector according to claim 5, characterized in that: The limiting platform (11) is a circular ring platform provided on the outer periphery of the connecting rod (1); the first end of the connecting rod (1) is a cylindrical structure; the circular ring platform is provided between the top of the cylindrical structure and the bottom of the raised rib (12); the maximum outer diameters of the first end and the second end of the connecting rod (1) are both smaller than the outer diameter of the circular ring platform.

7. The high current lateral BTB connector according to claim 6, characterized in that: The insertion end of the cylindrical structure is distributed in a truncated cone shape.

8. The high current lateral BTB connector according to any one of claims 1 to 4, characterized in that: Protrusions (23) are provided on both sides of the terminal (2), and a slot for clamping the protrusions (23) is provided in the connector housing (3).

9. The high current lateral BTB connector according to any one of claims 1 to 4, characterized in that: The connecting rod (1) comprises a copper rod.

10. A connector assembly, characterized in that: A high-current lateral BTB connector comprising any one of claims 1 to 9.

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