CN211320372U

CN211320372U - Cable connection structure and antenna

Info

Publication number: CN211320372U
Application number: CN202020224960.7U
Authority: CN
Inventors: 徐哲选; 陈露; 徐澄宇; 周正国; 郭培培; 张万强
Original assignee: Kunshan Luxshare RF Technology Co Ltd
Current assignee: Kunshan Luxshare RF Technology Co Ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-08-21
Anticipated expiration: 2030-02-28

Abstract

The utility model discloses a cable connection structure and an antenna, which belong to the technical field of communication, wherein the cable connection structure comprises a connection part, the connection part is provided with a first side and a second side which are opposite, and the connection part is provided with a first through hole which runs through the first side and the second side; the plug part comprises a plurality of plug connectors, the plug connectors are fixed on the edge of the first side, and at least one plug connector in the plurality of plug connectors is used for being welded with the printed circuit board; the bulge, the bulge has relative first end and second end, and first end is fixed in the second side, and the bulge has and runs through first end and second end and communicate in the second through-hole of first through-hole, and the second through-hole is used for fixed cable, and is equipped with on the lateral wall of bulge to begin at second end and extending direction and is on a parallel with the recess of second through-hole deep direction. The utility model provides a cable junction structure is simpler, and the size is less, can use on the less printed circuit board of band wire interval.

Description

Cable connection structure and antenna

Technical Field

The utility model relates to the field of communication technology, especially, relate to a cable junction structure and antenna.

Background

With the upgrading and upgrading of mobile communication technology, base station antennas are developing towards miniaturization, light weight, convenient installation and the like. Among them, the miniaturization of the base station antenna is influenced by the connection between a Printed Circuit Board (PCB) and a radio frequency cable in the base station antenna.

In the prior art, as shown in fig. 1 and 2, the PCB43 and the rf cable 44 are connected by using a die-cast cable clip including a soldering plate 41 and a U-shaped sheath 42 connected to the soldering plate 41. The PCB43 is provided with a groove, the welding plate 41 is fixed on the PCB43 through the groove, and the U-shaped sleeve 42 is sleeved on the end part of the PCB43 so as to realize the connection of the PCB43 and the welding plate 41.

However, due to the limitation of the die-cast cable clamp structure, the connection mode cannot meet the use environment that the distance between the two strip lines of the PCB43 is small, and further the volume of the base station antenna in the prior art is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cable junction structure and antenna, its structure is simpler, and the size is less, can reduce the interference to the band wire interval on the printed circuit board for this cable junction structure can use on the less printed circuit board of band wire interval.

As the conception, the utility model adopts the technical proposal that:

a cable connection structure comprising:

the connecting part is provided with a first side and a second side which are opposite, and a first through hole which penetrates through the first side and the second side is formed in the connecting part;

a plug-in part comprising a plurality of plug-in components, the plug-in components being fixed at the edge of the first side, and at least one of the plug-in components being used for (soldering with) a printed circuit board;

the bulge, the bulge has relative first end and second end, first end is fixed in the second side, the bulge has and runs through first end with second end and communicate in the second through-hole of first through-hole, the second through-hole is used for fixed cable, just be equipped with on the lateral wall of bulge and begin with second end and extending direction are on a parallel with the recess of second through-hole deep direction.

Optionally, two grooves are arranged on the side wall of the protruding portion at intervals.

Optionally, the inserting portion includes two inserting element groups, each inserting element group includes two inserting elements, and when the inserting portion is connected to the printed circuit board, the printed circuit board is clamped between two inserting elements in the inserting element groups.

Optionally, the outer contour of the connecting portion is circular, and a projection of the protruding portion on the connecting portion is located in the connecting portion.

Optionally, the outer surface of plug connector is the cambered surface, just the outer surface of plug connector with the surface parallel and level of connecting portion, perhaps, the outer surface of plug connector is the plane.

Optionally, the connecting portion has two opposite avoidance surfaces, the avoidance surfaces respectively correspond to the grooves, and a straight line passing through the centroid of the groove is perpendicular to a plane where the avoidance surfaces are located.

Optionally, the plug connector is long, and one end of the plug connector is fixedly connected with the second side, and the other end of the plug connector is provided with an inclined surface.

An antenna comprises a cable and a printed circuit board, and further comprises the cable connecting structure.

Optionally, a surface of a portion of the printed circuit board for connecting with the cable connection structure is an arc surface.

The beneficial effects of the utility model include at least:

the utility model provides an among the cable connection structure, through grafting portion and printed circuit board welding, and through bellying fixed cable, and then realize being connected between cable and the printed circuit board, the setting of bellying upper groove, can be convenient for weld the cable core shielding layer of cable in the bellying, and, cable connection structure's structure is simpler, the size is less, can reduce the interference to the printed circuit board upper band line interval, make this cable connection structure can use on the less printed circuit board of band line interval, and then can save printed circuit board's area, thereby save more spaces for the antenna.

Drawings

Fig. 1 is a state of use reference diagram of a die cast cable clamp of the prior art;

FIG. 2 is a schematic view of a die cast cable clamp of the prior art;

fig. 3 is a first schematic view of a cable connection structure according to a first embodiment of the present invention;

fig. 4 is a second schematic view of a cable connection structure according to a first embodiment of the present invention;

fig. 5 is a third schematic view of a cable connection structure provided in the first embodiment of the present invention;

fig. 6 is a first schematic view of a cable connection structure provided in an embodiment of the present invention;

fig. 7 is a second schematic view of a cable connection structure provided in the second embodiment of the present invention;

fig. 8 is a side view of a cable connection structure according to a third embodiment of the present invention;

fig. 9 is a first schematic view of a cable connection structure provided in a third embodiment of the present invention;

fig. 10 is a second schematic view of a cable connection structure provided in the third embodiment of the present invention;

fig. 11 is a side view of another cable connection structure provided in the third embodiment of the present invention;

fig. 12 is a first schematic view of another cable connection structure provided in the third embodiment of the present invention;

fig. 13 is a second schematic view of another cable connection structure provided in the third embodiment of the present invention;

fig. 14 is a side view of another cable connection structure provided in the third embodiment of the present invention;

fig. 15 is a first schematic view of another cable connection structure provided in the third embodiment of the present invention;

fig. 16 is a second schematic view of another cable connection structure provided in the third embodiment of the present invention;

fig. 17 is a first schematic structural diagram of an antenna according to a fourth embodiment of the present invention;

fig. 18 is a schematic structural diagram of an antenna according to the fourth embodiment of the present invention.

In the figure:

1. a connecting portion; 11. a first side; 12. a second side; 13. a first through hole; 14. an avoidance surface; 2. a plug-in part; 21. a plug-in unit; 211. an outer surface; 212. an inclined surface; 3. a boss portion; 31. a second through hole; 32. a groove; 10. a cable; 20. a printed circuit board; 30. a cable connection structure;

41. welding the plate; 42. a U-shaped sleeve; 43. a PCB; 44. a radio frequency cable.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment provides a cable connection structure 30, which can satisfy the use environment of a PCB with a small distance between two rf cables.

Example one

As shown in fig. 2 to 7, the present embodiment provides a cable connection structure 30 including a connection portion 1, a plugging portion 2, and a projection portion 3.

The connecting portion 1 has a first side 11 and a second side 12 opposite to each other, and the connecting portion 1 has a first through hole 13 penetrating through the first side 11 and the second side 12. The connector part 2 includes a plurality of connectors 21, each connector 21 is fixed to an outer edge of the first side 11, and at least one connector 21 of the plurality of connectors 21 is used for soldering with the printed circuit board 20 to fix the connection part 1 on the printed circuit board 20.

The protruding portion 3 and the inserting portion 2 are respectively located at two sides of the connecting portion 1, and specifically, the protruding portion 3 has a first end and a second end opposite to each other. Which is fixed to the second side 12 of the joint 1. The boss 3 has a hollow cylindrical shape, and the boss 3 has a second through hole 31 penetrating the first end and the second end and communicating with the first through hole 13. The second through hole 31 is used to accommodate an end of the cable 10, that is, a core of the cable 10 can be electrically connected to the PCB through the second through hole 31 and the first through hole 13. The side wall of the protruding portion 3 is provided with a groove 32 which starts from the second end and extends in a direction parallel to the depth direction of the second through hole 31.

In the cable connection structure 30 provided by the embodiment, the cable connection structure 30 is welded with the printed circuit board 20 through the plugging part 2, and the cable 10 is fixed through the protruding part 3, so that the connection between the cable 10 and the printed circuit board 20 is realized, the groove 32 is arranged on the protruding part 3, the cable core shielding layer of the cable 10 can be conveniently welded on the protruding part 3, furthermore, the structure of the cable connection structure 30 is simpler, the size is smaller, the interference to the strip line interval on the printed circuit board 20 can be reduced, so that the cable connection structure 30 can be applied to the printed circuit board 20 with the smaller strip line interval, and further, the area of the printed circuit board 20 can be saved, and more spaces can be saved for the antenna.

In this embodiment, referring to fig. 3 to 5, two grooves 32 are spaced on the side wall of the protruding portion 3, the two grooves 32 are disposed oppositely, and the two grooves 32 are U-shaped grooves, and the opening of the U-shaped groove is located on the second end of the protruding portion 3. The depth of the U-shaped groove may be the same as the length of the protrusion 3, or the depth of the U-shaped groove may be smaller than the length of the protrusion 3, which is not limited in this embodiment.

Alternatively, as shown in fig. 4, the plug part 2 comprises two plug piece groups. Each plug group comprises two plugs 21. When the mating part 2 is connected to the printed circuit board 20, the printed circuit board 20 can be sandwiched between two connectors 21 in each connector group. That is, the socket 3 is connected to the printed circuit board 20 through two socket groups, and the two sockets 21 in each socket group are respectively located on both sides of the printed circuit board 20. In this case, when connecting the connector 2 to the printed circuit board 20, the two connectors 21 of each connector group may be first plugged onto the printed circuit board 20, and then each connector 21 may be soldered onto the printed circuit board 20. Alternatively, in the present embodiment, the inserting part 2 and the connecting part 1 may be an integral structure, that is, the inserting part 2 and the connecting part 1 can be formed in the same sequential manufacturing process.

Further, referring to fig. 5 again, the connector 21 may be in a long shape, one end of the connector 21 is fixedly connected to the second side 12, and the other end of the connector 21 has an inclined surface 212, the inclined surface 212 is disposed to avoid scratching the printed circuit board 10, so as to improve the reliability of the cable connection structure 30, and the inclined surface 212 is disposed to facilitate welding of the connector 21 and the printed circuit board 20.

In this embodiment, referring to fig. 5, the outline of the connecting portion 1 is circular, and the projection of the protruding portion 3 on the connecting portion 1 is located in the connecting portion 1. That is, the diameter of the circle formed by the contour of the convex portion 3 is smaller than or equal to the diameter of the circle formed by the contour of the outer shape of the connecting portion 1.

Alternatively, as shown in fig. 4 and 5, the outer surface 211 of the plug 21 is a cambered surface, and the outer surface of the plug 21 is flush with the outer surface 211 of the connecting portion 1.

Example two

The difference between this embodiment and the first embodiment is that the structure of the connecting portion 1 in this embodiment is different. Specifically, as shown in fig. 6 and 7, in the first embodiment, the connecting portion 1 in the present embodiment has two opposing escape surfaces 14. When two grooves 32 are provided at intervals on the side wall of the protruding portion 3, the two avoiding surfaces 14 correspond to the two grooves 32, respectively. And a straight line passing through the centroid of the groove 32 is perpendicular to the plane of the avoidance surface 14. That is, the side surface of the connecting portion 1 in the present embodiment includes two opposite arc surfaces and two opposite avoiding surfaces 14, and a portion of the protruding portion 3 where no groove is provided faces the arc surfaces, and a portion of the protruding portion 3 where a groove is provided faces the avoiding surfaces 14.

The rest of the structure of this embodiment is the same as that of the first embodiment, and is not described again.

EXAMPLE III

The difference between this embodiment and the first embodiment is that the structure of the insertion part 2 in this embodiment is different. Specifically, as shown in fig. 8 to 16, the outer surface 211 of the plug 21 of the socket 2 in the present embodiment is a flat surface.

Further, when the outer surface 211 of the plug-in unit 21 is a flat surface, as shown in fig. 8 to 10, the side surface of the connection portion 1 may include an arc portion and a flat portion (i.e., the avoiding surface 14 in the first embodiment) which is flush with the outer surface of the plug-in unit 21 and which is convex with respect to the arc portion. Alternatively, as shown in fig. 11 to 13, the side surface of the connecting portion 2 may include the escape surface 14 and the flat surface 15, and in this case, one end of each plug 21 connected to the connecting portion 1 is protruded with respect to the connecting portion 2. Still alternatively, as shown in fig. 14 to 16, the two connection members 21 in each connection member group are connected to the connection portion 1 after connecting one ends of the connection portions 1 to each other, and at this time, the connection portions of the two connection members 21 are protruded with respect to the side surface of the connection portion 1.

The protruding portion 3 of this embodiment is the same as the protruding portion 3 of the first embodiment, and is not described again.

Example four

The present embodiment provides an antenna, as shown in fig. 17 and 18, which includes a cable 10 and a printed circuit board 20, and the cable connection structure 30 in the above embodiments.

Further, the surface of the portion of the printed circuit board 20 for connecting with the cable connection structures 30 is an arc surface, and at this time, the two cable connection structures 30 can be conveniently accessed by an electromagnet when the distance is short.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A cable connection structure, characterized by comprising:

the connecting part (1) is provided with a first side (11) and a second side (12) which are opposite, and the connecting part (1) is provided with a first through hole (13) which penetrates through the first side (11) and the second side (12);

the plug-in part (2) comprises a plurality of plug-in components (21), the plug-in components (21) are fixed on the edge of the first side (11), and at least one plug-in component (21) in the plurality of plug-in components (21) is used for being welded with a printed circuit board (20);

boss (3), boss (3) have relative first end and second end, first end is fixed in second side (12), boss (3) have run through first end with the second end and communicate in second through-hole (31) of first through-hole (13), second through-hole (31) are used for fixed cable (10), just be equipped with on the lateral wall of boss (3) and begin at second end and extending direction are on a parallel with recess (32) of second through-hole (31) hole depth direction.

2. The cable connection structure according to claim 1, wherein the side wall of the boss (3) is provided with two grooves (32) at a spacing.

3. A cable connection according to claim 1, wherein the plug part (2) comprises two plug groups, each plug group comprising two plugs (21), and wherein the printed circuit board (20) is sandwiched between two plugs (21) of the plug groups when the plug part (2) is connected to the printed circuit board (20).

4. A cable connection according to any one of claims 1 to 3, wherein the connecting portion (1) has a circular outer contour, and the projection of the projection (3) onto the connecting portion (1) is located in the connecting portion (1).

5. The cable connection structure according to claim 4, wherein the outer surface (211) of the plug (21) is an arc surface, and the outer surface of the plug (21) is flush with the outer surface (211) of the connection portion (1), or the outer surface (211) of the plug (21) is a plane.

6. The cable connection structure according to claim 2 or 3, wherein the connecting portion (1) has two opposing escape surfaces (14), the escape surfaces (14) respectively correspond to the grooves (32), and a straight line passing through the centroid of the groove (32) is perpendicular to a plane in which the escape surfaces (14) are located.

7. A cable connecting structure according to any one of claims 1 to 3, wherein the plug (21) is elongated, and one end of the plug (21) is fixedly connected to the second side (12), and the other end of the plug (21) has an inclined surface (212).

8. An antenna comprising a cable (10) and a printed circuit board (20), characterized in that it further comprises a cable connection according to any of claims 1-7.

9. An antenna according to claim 8, characterized in that the surface of the portion of the printed circuit board (20) intended to be connected to the cable connection structure is a cambered surface.