This application claims the benefit of Korean Patent Application No. 10-2019-0071043 filed on Jun. 14, 2019 and Korean Patent Application No. 10-2019-0145209 filed on Nov. 13, 2019, the entire disclosures of which are incorporated herein by references.
The present invention relates to a connector for transmitting super-high frequency signals, and, more particularly, to a compact coaxial cable connector for transmitting super-high frequency signals, which is a multi-connector having a structure allowing signal lines in a male connector thereof to be directly connected to signal line pads on a printed circuit board.
Embodiments of the present invention have been conceived to solve such a problem of typical mono- or multi-connectors and it is an aspect of the present invention to provide a compact coaxial cable connector for transmitting super-high frequency signals, which includes a female connector that includes only a housing socket mounted on a PCB and receiving a male connector housing without a separate terminal reception member for receiving signal line terminals in a male connector, such that the terminals in the male connector can be brought into direct contact with terminal pads on the PCB, respectively, thereby minimizing signal loss and allowing miniaturization through significant reduction in height of the connector while allowing connection of a single or multiple coaxial cables thereto.
In accordance with an aspect of the present invention, there is provided a compact coaxial cable connector for transmitting super-high frequency signals, which is adapted to connect a printed circuit board (PCB) to a single or multiple super-high frequency coaxial cable signal lines transmitting super-high frequency signals therethrough, the compact coaxial cable connector including: a single or multiple coaxial cables each including an inner conductor, an outer conductor, a dielectric, and a sheath, wherein the outer conductor, the dielectric, and the sheath are stripped to expose the inner conductor over a predetermined length and a terminal of the exposed inner conductor is brought into electrical contact with a circuit signal line terminal pad formed on the PCB; a male connector including a shielding can receiving the exposed inner conductors of the single or multiple coaxial cables, securing and protecting ends of the exposed inner conductors, and blocking electromagnetic waves generated from the inner conductors of the single or multiple coaxial cables; and a connector socket mounted on the PCB, receiving the shielding can to be fastened to the male connector, and electrically connected to the shielding can and a ground terminal of the PCB, wherein, upon fastening the male connector to the connector socket, the super-high frequency coaxial cable signal line terminals in the male connector are brought into direct contact with and connected to the circuit signal line terminal pads formed on the PCB, respectively.
The male connector may further include adapters each connected at one end thereof to corresponding one of the single or multiple super-high frequency coaxial cable signal lines and connected at the other end thereof to corresponding one of the circuit signal line terminal pads formed on the PCB to allow contact between the coaxial cable signal lines and the respective signal line terminal pads on the PCB, and the super-high frequency coaxial cable signal lines are connected to the circuit signal line terminal pads formed on the PCB via the adapters of the male connector, respectively.
The shielding can may include an adapter reception portion receiving the adapters one-to-one connected to the inner conductors of the multiple coaxial cables, the adapter reception portion being configured to individually shield the adapters; and the exposed inner conductors of the multiple coaxial cables and the adapters may be electrically shielded. The connector socket may further include a fastening portion to be fastened to the male connector. The connector socket may be mounted on the PCB by surface-mount technology (SMT) or through-hole mount technology, such as single in-line package (SIP) technology, dual in-line package (DIP) technology, and quad in-line package (QIP) technology.
The connector socket may be mounted on the PCB by combination of surface-mount technology (SMT) and through-hole mount technology, such as single in-line package (SIP) technology, dual in-line package (DIP) technology, and quad in-line package (QIP) technology. The connector socket may have a cuboid shape, may be open at the bottom thereof and at one side thereof into which the male connector is inserted, and may be partially open at the top thereof, the male connector may be inserted into the connector socket in a direction parallel to a bottom surface of the PCB or at an angle to the bottom surface of the PCB. The connector socket may have a cuboid shape, may be open at the bottom thereof and at one side thereof into which the male connector is inserted, and may have an upper surface provided in the form of a reclosable lid opened at a right angle, an acute angle, or an obtuse angle; and, upon inserting the male connector into the connector socket, the male connector can be inserted in a direction parallel to an upper surface of the PCB, can be obliquely inserted at an acute angle or an obtuse angle to the upper surface of the PCB, can be inserted while descending at a right angle, or can be inserted in a direction in which the lid is closed.
In the coaxial cable connector for transmitting super high-frequency signals according to the present invention, a reception member that is typically provided to a connector socket to receive coaxial cable signal line terminals in a male connector is omitted such that the signal line terminals in the male connector can be bought into direct contact with circuit signal line terminal pads on a PCB, respectively, or adapters are provided to allow easy contact between the coaxial cable signal line terminals in the male connector and the respective circuit signal line terminal pads on the PCB, thereby minimizing leakage current and noise and thus reducing signal loss while allowing minimization of the connector through reduction in fastening height and width of the coaxial cable mono- or multi-connector.
In addition, according to the present invention, outer conductors, which are shielding layers of coaxial cables connected to the male connector, are connected to a shielding can blocking electromagnetic waves generated from inner conductors, which are signal lines of the coaxial cables, and the connector socket mounted on the PCB and connected to a ground terminal of the PCB is brought into contact with and electrically connected to the shielding can of the male connector by receiving the shielding can to provide electrical shielding, thereby reducing signal loss in the signal line terminals in the male connector, which directly contact the circuit signal terminal pads of the PCB, respectively.
Further, according to the present invention, since it is possible to eliminate the need to provide a separate reception member receiving the signal line terminals in the male connector to the connector socket, the structure of the connector socket can be simplified, thereby allowing reduction in manufacturing cost.
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It will be understood that the embodiments and the drawings described in the specification are not exhaustive but solely illustrative and there are present various alterations and equivalent embodiments thereof at the time of filing the present application.
A coaxial cable connector for transmitting super-high frequency signals according to the present invention is a PCB connector that connects a printed circuit board (PCB) to a single or multiple coaxial cable signal lines transmitting super-high frequency signals therethrough, and includes a male connector and a connector socket. The male connector includes a single or multiple coaxial cables and a shielding can.
The single or multiple coaxial cables include an inner conductor, an outer conductor, a dielectric, and a sheath, wherein the sheath, the outer conductor, and the dielectric are stripped to expose the inner conductor over a predetermined length, and a terminal of the exposed inner conductor is brought into electrical contact with a circuit signal line terminal pad formed on the PCB. The shielding can receives the exposed inner conductors of the single or multiple coaxial cables, secures and protects ends of the exposed inner conductors, and blocks electromagnetic waves generated from the inner conductors.
The connector socket is mounted on the PCB, receives the shielding can to be fastened to the male connector, and is electrically connected to the shielding can and a ground terminal of the PCB. When the connector socket is fastened to the male connector, super-high frequency coaxial cable signal line terminals in the male connector are brought into direct contact with and connected to the circuit signal line terminal pads formed on the PCB, respectively.
The male connector may further include adapters. The adapters allow the single or multiple coaxial cable signal lines to contact the respective signal line terminal pads on the PCB, and are each connected at one end thereof to corresponding one of the super-high frequency coaxial cable signal lines and connected at the other end thereof to corresponding one of the circuit signal line terminal pads formed on the PCB. That is, the super-high frequency signal lines are brought into contact with and connected to the circuit signal line terminal pads formed on the printed circuit board via the adapters of the male connector, respectively. The shielding can may include an adapter reception portion. The adapter reception portion receives the adapters one-to-one connected to the inner conductors of the coaxial cables, and is configured to individually shield the adapters. That is, the shape of the adapter reception portion allows the exposed inner conductors of the coaxial cables and the adapters received in the shielding can to be individually electrically shielded.
When the male connector 20 is fastened to the connector socket 225, the signal line terminals 255 of the cables formed on the bottom surface of the male connector 20 are brought into direct contact with and connected to the circuit signal terminal pads 214 formed on the PCB 215, respectively, without using a separate reception member receiving the signal line terminals 255. Here, the connector socket 225 mounted on the PCB 215 is fastened to the male connector 20 by receiving the shielding can 270, 280, 290 of the male connector 20, and the shielding can 270, 280, 290, the connector socket 225, and the ground of the PCB 215 are electrically connected to one another to shield the exposed inner conductors of the coaxial cables and the adapters, thereby minimizing leakage current and noise and thus reducing signal loss. In addition, according to the present invention, since the connector socket 225 mounted on the PCB 215 is not provided with such a reception member receiving the cable signal line terminals 260, as shown in
Alternatively, the connector socket 225 may be integrally formed with the PCB, rather than formed separately from the PCB.
The adapter unit 40 includes multiple adapters. Each of the adapters 42 is configured to be easily shielded by the shielding can 270, 280, 290 and to allow easy connection between the inner conductor 210 of the coaxial cable 30 and the circuit signal line terminal pad 214 formed on the PCB 215, and includes a conductor portion 250 and a dielectric portion 260. One end of the conductor portion 250 is brought into contact with and connected to the signal line terminal pad 214 of the PCB 215 and the other end of the conductor portion 250 receives and is connected to the signal line 210, that is, the inner conductor of the coaxial cable 30. When the inner conductor, that is, the signal line of the cable, is inserted into and connected to the adapter 42, the one end of the conductor portion 250, which corresponds to the cable signal line terminal 255 of
The shielding can 270, 280, 290, 310, 320, 410 includes an adapter reception portion 272 formed therein and having cylindrical portions adapted to receive the adapters 42 one-to-one connected to the inner conductors 210 of the single or multiple coaxial cables, respectively. The adapter reception portion 272 is configured to form shielding walls adapted to separate the adapters received in the adapter reception portion from one another and to shield the adapters upon coupling of the lower shielding member 270 to the upper shielding member 280 and the front shielding member 290.
The PCB multi-connector according to the present invention can provide maximized shielding against electromagnetic waves generated from signal lines when coaxial cables are used as the signal lines. Specifically, the shielding can 270, 280, 290 of the male connector 20 is connected to the outer conductors 230 of the coaxial cables 30. The connector socket 225 formed of a conductor is connected to a ground terminal of the PCB 215. In this way, the lower shielding member 270 can be electrically connected to the ground terminal of the PCB 215, thereby providing shielding against electromagnetic waves.
When the male connector 20 is inserted into and fastened to the connector socket 225 mounted on the PCB 215, the shielding can 270, 280, 290 of the male connector 20 connected to the outer conductors 230 of the coaxial cables 30 is brought into contact with and connected to the connector socket 225 connected to the ground terminal of the PCB 215, thereby providing maximized shielding against electromagnetic waves generated from the signal line terminals of the male connector, which directly contact the terminal pads 214 on the PCB 215, respectively.
The connector socket 225 may have a cuboid shape. However, it will be understood that the present invention is not limited thereto and the connector socket 225 may have various shapes, such as a cube shape, a semi-cylindrical shape, and a polyhedral shape, in addition to a cuboid shape.
As described above, the male connector 20 can be mounted on the PCB 215 in various ways depending on the shape of the upper surface of the male connector 20. In this way, the compact coaxial cable connector for transmitting super-high frequency signals according to the present invention can be easily installed in a limited space and can be fastened to the PCB in various ways depending on the shape thereof.
Although some embodiments have been described herein with reference to the accompanying drawings, it should be understood by those skilled in the art that these embodiments are given by way of illustration only and the present invention is not limited thereto and that various modifications, variations, and alterations can be made by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, the scope of the invention should be limited only by the accompanying claims and equivalents thereto.
Number | Date | Country | Kind |
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10-2019-0071043 | Jun 2019 | KR | national |
10-2019-0145209 | Nov 2019 | KR | national |
Number | Name | Date | Kind |
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20050095902 | Zhang et al. | May 2005 | A1 |
20060228952 | Feldman | Oct 2006 | A1 |
20100203771 | Bailleul | Aug 2010 | A1 |
20140187087 | Mason | Jul 2014 | A1 |
Number | Date | Country |
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WO-2008123652 | Oct 2008 | WO |
Entry |
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Extended European Search Report from corresponding European Patent Application No. 20179712.3, dated Nov. 10, 2020. |
Number | Date | Country | |
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20200395717 A1 | Dec 2020 | US |