Printed board socket and connector

Abstract

The utility model relates to a printed board socket and a connector, which comprise a shell and an insulator arranged in the shell, at least two second contact elements are arranged in the insulator, and each second contact element comprises a first sub-contact element used for being conducted with a printed board and a second sub-contact element used for being plugged with a panel socket. The first sub-contact piece is provided with a connecting part used for being conducted with the printed board and a fixing part used for being connected with the second sub-contact piece, and the fixing part is arranged in the direction close to the adjacent second contact piece relative to the connecting part. The second contact piece does not need to be bent twice, the assembly efficiency is high, and the through-current capability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a printed board socket and a connector. Background Art

[0002] In small base stations for mobile communications, electrical connectors are usually used to connect base station cabinets with external devices. With the development of technology, the current carrying capacity of connectors is required to increase continuously, and the printed circuit boards in the equipment have higher voltage resistance requirements as a whole. In addition, due to space structure limitations, in order to ensure the convenience of operation, equipment manufacturers usually require that the external connectors of the cabinet should be small in size and have high current carrying capacity. For plugs and sockets outside the cabinet, directly increasing the size of the contacts can achieve current increase, but for connectors inside the cabinet, simply increasing the size of the contacts will inevitably affect the electrical clearance and cannot meet the high voltage resistance requirements.

[0003] Currently, if Fig.11 For existing connectors, such as Fig.12 The figure is a schematic diagram of a printed circuit board socket in an existing connector. For the existing connector, for the printed circuit board socket, the pin spacing can meet the 240V withstand voltage of the entire printed circuit board. However, there is a new equipment that needs to meet the UL62368-1 withstand voltage requirement for the entire board, 420V DC high voltage and high current working scenarios, which cannot be met by the existing solutions. The existing method often increases the diameter of the pin contact to meet the large current, but the creepage distance will be smaller after the contact diameter is increased, so the contact distance needs to be increased, but considering that the relative position of the plug and socket contacts does not change, the pin contact is usually set to a double-bending structure, and the contact spacing is increased on the basis of increasing the contact specifications, but the double-bending structure is difficult to form. Utility Model Content

[0004] Aiming at the problems existing in the prior art, the utility model provides a printed circuit board socket and a connector.

[0005] The utility model adopts the following technical solution to solve the above technical problems: a printed circuit board socket, comprising a housing and an insulator arranged in the housing, wherein at least two second contacts are arranged in the insulator, and the second contacts comprise a first sub-contact for conducting with the printed circuit board and a second sub-contact for plugging with the panel socket;

[0006] The first sub-contact has a connecting portion for conducting with the printed circuit board and a fixing portion for connecting with the second sub-contact, and the fixing portion is arranged relative to the connecting portion in a direction close to the adjacent second contact.

[0007] As a preferred solution, the fixing portion is connected to the second sub-contact piece by welding, riveting or threading.

[0008] As a preferred solution, the first sub-contact is a sheet-type contact.

[0009] As a preferred solution, a riveting column is provided on the second sub-contact piece, and a riveting hole for riveting with the riveting column is provided on the fixing portion.

[0010] As a preferred solution, a sub-connection portion for conducting with a printed circuit board is provided on the connection portion in a direction away from the adjacent second contact piece.

[0011] As a preferred solution, a partition is provided between two adjacent second sub-contact members.

[0012] As a preferred solution, an anti-rotation stopper is provided on the insulator, and the anti-rotation stopper and the inner wall of the insulator form a first limiting groove for preventing the connecting portion from swinging.

[0013] As a preferred solution, a first contact piece is further provided in the insulator, and a second limiting groove for preventing the first contact piece from swinging is provided on the insulator.

[0014] As a preferred solution, a cover plate for limiting the connection portion and the first contact piece is embedded on the insulator, and the connection portion and the first contact piece both extend out of the cover plate.

[0015] The present application also provides a connector, characterized in that it comprises

[0016] Panel socket, which is set on the box panel,

[0017] A plug is arranged on the front side of the box panel to connect the cable, and the plug is plugged into the panel socket;

[0018] A printed circuit board socket is arranged on the rear side of a box panel to connect a printed circuit board. The printed circuit board socket is plugged into and matched with the panel socket. The printed circuit board socket includes a shell and an insulator arranged in the shell. At least two second contacts are arranged in the insulator. The second contact includes a first sub-contact for welding and conducting with the printed circuit board and a second sub-contact for plugging with the panel socket. The first sub-contact has a connecting portion for welding and conducting with the printed circuit board and a fixing portion for connecting with the second sub-contact. The fixing portion is arranged relative to the connecting portion in a direction close to the adjacent second contact.

[0019] The beneficial effects of the present application are: 1. The second contact of the present application includes a first sub-contact and a second sub-contact, and the first sub-contact is riveted to the second sub-contact and arranged in an L shape. The second contact does not need to be bent twice, and the assembly efficiency is high. Moreover, when the position of the second sub-contact is fixed, since the sub-connecting part and the connecting part are arranged in an L shape, the extension distance of the two first sub-contacts to both sides of the connector is increased, and the current carrying capacity is increased.

[0020] 2. The first sub-contact of the present application is a sheet-type contact, and the fixed part is also a sheet-type structure, with a larger cross-sectional area than a round needle and a higher current flow to compensate for the increase in contact resistance in the riveted area.

[0021] 3. The second sub-contact member of the present application is provided with a rivet column, and the fixing portion is provided with a rivet hole for riveting the rivet column, which makes riveting convenient and has high assembly efficiency.

[0022] 4. This application solves the problem of short electrical clearance by setting a partition while increasing the current carrying capacity of the connector.

[0023] 5. The present application prevents the connection part from swinging by setting an anti-rotation stop. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the connector of the utility model;

[0025] Figure 2 for Figure 1 A front view of

[0026] Figure 3 It is an exploded schematic diagram of the connector of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the printed circuit board socket of the utility model;

[0028] Figure 5 It is a structural schematic diagram of the second contact member of the utility model;

[0029] Figure 6 It is an exploded schematic diagram of the second contact member of the utility model;

[0030] Figure 7 This is a structural schematic diagram of the cover plate of the utility model;

[0031] Figure 8 It is a schematic diagram of the printed circuit board socket contact before and after moving along the X-axis direction;

[0032] Fig. 9 It is a schematic diagram of the printed circuit board socket contact before and after moving along the Y-axis direction;

[0033] Fig.10 This is a schematic diagram of the connection between the first contact piece and the second contact piece of the utility model and the printed circuit board;

[0034] Fig.11 It is a structural schematic diagram of the prior art;

[0035] Fig.12 It is a structural schematic diagram of a printed circuit board socket in the prior art.

[0036] Markings in the figure: 1, plug, 2, panel socket, 21, box panel, 3, shell, 31, first contact piece, 32, second contact piece, 321, first sub-contact piece, 3211, connecting part, 3212, fixing part, 3213, sub-connecting part, 322, second sub-contact piece, 3221, riveted column, 33, anti-rotation baffle, 34, partition, 35, cover plate, 351, first through hole, 352, second through hole, 353, slide plate, 36, first limiting groove, 37, second limiting groove, 38, slide groove, 4, printed circuit board. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that in the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] See also Figure 1-7 The utility model embodiment provides a connector, including a panel socket 2, a plug 1 and a printed board socket, the panel socket 2 is arranged on a box panel 21, the plug 1 is arranged on the front side of the box panel 21, the plug 1 is connected to the cable, the plug 1 is plugged with the front end of the panel socket 2, the printed board socket is arranged on the rear side of the box panel 21, the printed board socket is connected to the printed board 4, the printed board socket is plugged with the rear end of the panel socket 2, the printed board socket includes a housing 3 and an insulator arranged in the housing 3, the insulator is provided with a first contact 31 and a second contact 32, the printed board 4 and the panel socket 2 are connected to each other. Both are connected to the first contact 31, and the second contact 32 includes a first sub-contact 321 for welding and conducting with the printed circuit board 4 and a second sub-contact 322 for plugging with the panel socket 2. The end of the first sub-contact 321 away from the printed circuit board 4 is connected to the end of the second sub-contact 322 away from the panel socket 2. The first sub-contact 321 has a connecting portion 3211 for welding and conducting with the printed circuit board 4 and a fixing portion 3212 for connecting with the second sub-contact 322. The fixing portion 3212 is arranged relative to the connecting portion 3211 in a direction close to the adjacent second contact 32.

[0039] The first contact 31 has a printed circuit board connection end for welding and conducting with the printed circuit board 4 and a socket connection end for plugging with the panel socket 2. The printed circuit board connection end and the socket connection end are arranged in an L shape and are made as one piece. The first contact 31 is a pin contact.

[0040] Specific, combined Figure 1 , 4 -7, there are two second contact members 32 and one first contact member 31, the first sub-contact member 321 and the second sub-contact member 322 are riveted and connected in an L-shape, the first sub-contact member 321 has a connecting portion 3211 for welding and conducting with the printed circuit board 4 and a fixing portion 3212 for riveting with the second sub-contact member 322, the second sub-contact member 322 is arranged perpendicular to the first sub-contact member 321, the connecting portion 3211 and the fixing portion 3212 are arranged in an L-shape, a rivet column 3221 is provided on the second sub-contact member 322, and a rivet hole for riveting the rivet column is provided on the fixing portion 3212, the riveting is convenient, and the assembly efficiency of the first sub-contact member 321 and the second sub-contact member 322 is improved, and the first sub-contact member 321 and the second sub-contact member 322 can also be connected by welding or threading.

[0041] There are three printed circuit board contacts, which are defined as contact A, contact B and contact C. Existing technicians usually use the following method: Figure 8 The printed circuit board contacts are arranged in a manner such that the dotted line is the printed circuit board contact after moving along the X axis, and the solid line is the printed circuit board contact before moving along the X axis. Figure 8 , contact C is fixed, contact A and contact B move along the X direction, and after moving, they are contact A1 and contact B1 respectively. Finally, after moving, contact A1 and contact B1 are not on the same vertical axis. This method will increase the positioning size of the printed circuit board opening. There is another situation that after contact A and contact B move along the X axis for the first step, contact A moves a certain distance upward along the Y axis. However, this solution also increases the length and width of the printed circuit board socket, and the space utilization rate is not high. If Fig. 9 As shown in the figure, the dotted line is the printed circuit board contact after moving along the Y axis, and the solid line is the printed circuit board contact before moving along the Y axis. Fig. 9As shown, contact C is fixed, contact A and contact B move opposite to each other along the Y-axis direction, and after movement, they are contact A2 and contact B2 respectively. As the distance between contact A and contact C increases, the distance between contacts A and B also increases synchronously. Therefore, compared with the movement along the X-axis direction, the size of the printed circuit board socket increases less when moving along the Y-axis, the space utilization rate of the printed circuit board socket is higher, and the size increase is less. The present application adopts the arrangement of the printed circuit board contacts after moving along the Y-direction, that is, the two second contacts 32 correspond to contact A2 and contact B2 respectively, and the first contact 31 corresponds to contact C. At this time, the space utilization rate of the printed circuit board socket is higher.

[0042] More specifically, Figure 5 and Figure 6 As shown, a sub-connection portion 3213 for welding and conducting with the printed circuit board 4 is provided on the connection portion 3211 in a direction away from the adjacent second contact member 32. The sub-connection portion 3213 is located at the upper end of the connection portion 3211, and the cross section of the sub-connection portion 3213 is a square. Fig.10 As shown, the printed circuit board 4 is provided with a first mounting hole cooperating with the first contact piece and a second mounting hole cooperating with the sub-connecting portion 3213. The second mounting hole is circular, and the cross-section of the sub-connecting portion 3213 is square, so that the gap between the sub-connecting portion 3213 and the second mounting hole is small, thereby facilitating welding. The sub-connecting portion 3213 and the connecting portion 3211 are arranged in an L shape, and the connecting portion 3211, the fixing portion 3212 and the sub-connecting portion 3213 are made as one piece.

[0043] The two second contact members 32 and the first contact member 31 are arranged in an isosceles triangle structure. The isosceles triangle structure has two oblique sides and one straight side. The two sub-connecting parts 3213 are both located on the straight sides, and the two fixing parts 3212 are arranged opposite to each other. It should be noted that the parts not described in detail in this application are all prior arts.

[0044] The first sub-contact 321 is a sheet-type contact, the second sub-contact 322 is a pin-type contact, and the fixing portion 3212 is also a sheet-type structure with a larger cross-sectional area than a round pin and a higher current flow to compensate for the increased contact resistance in the riveted area. The printed circuit board socket is provided with pins for welding and fixing to the printed circuit board 4.

[0045] In addition, combined Figure 4 and Figure 7As shown, the insulator is provided with an anti-rotation stopper 33, and the anti-rotation stopper 33 and the inner wall of the insulator form a first limiting groove 36 for preventing the connection part 3211 from swinging, and a second limiting groove 37 for preventing the connection end of the printed circuit board from swinging is formed between the two anti-rotation stoppers 33. The first limiting groove 36 and the second limiting groove 37 are both U-shaped, and a cover plate 35 for limiting the connection part 3211 and the first contact member 31 is embedded in the insulator. The connection part 3211 and the first contact member 31 are both extended from the cover plate 35, and slide plates 353 are respectively provided on both sides of the cover plate 35. A slide groove 38 with interference fit with the slide plate 353 is provided on the insulator in the vertical direction. The slide plate 353 and the slide groove 38 are interference fit to achieve the fixation of the cover plate 35 and the insulator. By setting the cover plate 35, on the one hand, the connection part 3211 and the first contact member 31 are limited, and on the other hand, the inside of the connector is protected to have a certain isolation effect on external dust and impurities. The lower end of the cover plate 35 is abutted against the upper end of the anti-rotation baffle 33. The cover plate 35 is provided with a first through hole 351 for the connection part 3211 to pass through and a second through hole 352 for the connection end of the printed circuit board to pass through. By setting the anti-rotation baffle 33, the connection part 3211 is prevented from swinging, and the assembly of the cover plate 35 is also convenient, which greatly improves the work efficiency.

[0046] In the present application, the first sub-contact 321 and the second sub-contact 322 are riveted and connected and arranged in an L shape. The second contact 32 does not need to be bent twice, and the assembly efficiency is high. Moreover, when the position of the second sub-contact 322 is fixed, since the sub-connecting portion 3213 and the connecting portion 3211 are arranged in an L shape, the extension distance of the two first sub-contacts 321 to both sides of the printed circuit board socket is increased, and the current carrying capacity is increased.

[0047] The panel socket 2 is fixed on the box panel 21 by screws passing through the flange of the panel socket 2, the printed board socket is welded on the printed board 4 through pins, and the plug 1 is crimped into the cable in the crimping barrel by screws. When in use, the plug 1 is plugged into and matched with the front end of the panel socket 2, and the printed board socket is matched with the rear end of the panel socket 2. The plug 1, the panel socket 2 and the printed board socket work together to transmit the electrical signal in the cable to the printed board 4. Compared with the existing connectors, the present application ensures that the external dimensions of the plug 1, the panel socket 2 and the printed board socket remain unchanged, and the relative positions of the contacts at the plugging interface of the plug 1, the printed board socket and the panel socket 2 remain unchanged, and the current carrying capacity is increased.

[0048] Of course, the present invention is not limited to the above-described implementations. Several other implementations based on the design concept of the present invention are provided below.

[0049] For example, in other embodiments, different from the above-described embodiments, Figure 4 and Figure 7As shown, a partition 34 is provided on the insulator between two adjacent second contact members 32, and the partition 34 is located between the two fixing portions 3212. The present application solves the problem of short electrical clearance while increasing the current carrying capacity of the connector by providing the partition 34.

[0050] For example, in other embodiments, different from the embodiments described above, in this embodiment, the first sub-contact 321 and the second sub-contact 322 are fixedly connected and arranged in a Z shape, the fixed portion 3212 and the second sub-contact 322 are L-shaped, and the second sub-contact 322 is arranged parallel to the connecting portion 3211 of the first sub-contact 321. The second contact 32 does not need to be bent twice, and the assembly efficiency is high.

[0051] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model fall within the protection scope of the present utility model.

Claims

1. A printed circuit board socket, characterized in that: It comprises a housing (3) and an insulator arranged in the housing (3), wherein at least two second contact members (32) are arranged in the insulator, and the second contact members (32) comprise a first sub-contact member (321) for conducting with a printed circuit board (4) and a second sub-contact member (322) for plugging with a panel socket (2); The first sub-contact piece (321) comprises a connecting portion (3211) for conducting with a printed board (4) and a fixing portion (3212) for connecting with a second sub-contact piece (322); the fixing portion (3212) is arranged relative to the connecting portion (3211) in a direction close to an adjacent second contact piece (32).

2. A printed circuit board socket according to claim 1, characterized in that: The fixing portion (3212) is connected to the second sub-contact piece (322) by welding, riveting or threading.

3. A printed circuit board socket according to claim 1, characterized in that: The first sub-contact piece (321) is a sheet-type contact piece.

4. A printed circuit board socket according to claim 3, characterized in that: The second sub-contact piece (322) is provided with a riveting column (3221), and the fixing portion (3212) is provided with a riveting hole for riveting with the riveting column (3221).

5. A printed circuit board socket according to claim 3, characterized in that: A sub-connection portion (3213) for conducting with a printed circuit board (4) is provided on the connection portion (3211) in a direction away from the adjacent second contact piece (32).

6. A printed circuit board socket according to any one of claims 1 to 5, characterized in that: A partition (34) is provided between two adjacent second sub-contact members (322).

7. A printed circuit board socket according to claim 6, characterized in that: An anti-rotation stop platform (33) is provided on the insulator, and the anti-rotation stop platform (33) and the inner wall of the insulator form a first limiting groove (36) for preventing the connection part (3211) from swinging.

8. A printed circuit board socket according to claim 7, characterized in that: A first contact piece (31) is also provided in the insulator, and a second limiting groove (37) for preventing the first contact piece (31) from swinging is provided on the insulator.

9. A printed circuit board socket according to claim 8, characterized in that: A cover plate (35) for limiting the position of the connecting portion (3211) and the first contact member (31) is embedded in the insulator, and the connecting portion (3211) and the first contact member (31) both extend out of the cover plate (35).

10. A connector, characterized in that: include A panel socket (2) is arranged on the box panel (21). A plug (1) is arranged on the front side of the box panel (21) to connect the cable, and the plug (1) is plugged into and matched with the panel socket (2); A printed circuit board socket is arranged at the rear side of a box panel (21) to connect a printed circuit board (4), the printed circuit board socket being plugged into and matched with a panel socket (2), the printed circuit board socket comprising a housing (3) and an insulator arranged in the housing (3), at least two second contact members (32) being arranged in the insulator, the second contact member (32) comprising a first sub-contact member (321) for welding and conducting with the printed circuit board (4) and a second sub-contact member (322) for plugging with the panel socket (2), the first sub-contact member (321) having a connecting portion (3211) for welding and conducting with the printed circuit board (4) and a fixing portion (3212) for connecting with the second sub-contact member (322), the fixing portion (3212) being arranged relative to the connecting portion (3211) in a direction close to an adjacent second contact member (32).

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