CN109449617B - Radio frequency connection structure - Google Patents
Radio frequency connection structure Download PDFInfo
- Publication number
- CN109449617B CN109449617B CN201811381420.3A CN201811381420A CN109449617B CN 109449617 B CN109449617 B CN 109449617B CN 201811381420 A CN201811381420 A CN 201811381420A CN 109449617 B CN109449617 B CN 109449617B
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- Prior art keywords
- circuit board
- connection
- elastic
- radio frequency
- board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/52—Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/716—Coupling device provided on the PCB
- H01R12/718—Contact members provided on the PCB without an insulating housing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
Abstract
The invention discloses a radio frequency connection structure, belongs to the technical field of connectors, and solves the technical problems of reducing the size of board-to-board connection and facilitating installation. The technical key points are as follows: including first circuit board (1), second circuit board (2) and connection circuit board (3), connection circuit board (3) electric connection is between first circuit board (1) and second circuit board (2), connection circuit board (3) one end and first circuit board (1) fixed connection, connection circuit board (3) other end and second circuit board (2) pass through elastic connection piece (4) swing joint. The invention is used for board-to-board radio frequency signal connection.
Description
Technical Field
The invention relates to the technical field of connectors, in particular to a radio frequency connection structure.
Background
With the development of communication technology, mobile terminal devices need more and more antennas to receive radio frequency signals with different frequency bands and different standards. Therefore, the smart antenna system integrated with the antenna, the radio frequency module, the system chip, and the like becomes the mainstream mode of the current mobile terminal device, and radio frequency signal transmission between the circuit board and the circuit board is often required in the highly integrated smart antenna system.
In the prior art, a coaxial connector in a form of board-to-board or a coaxial welding mode is adopted to transmit radio frequency signals between two circuit boards. The two modes have great disadvantages in terms of manufacturing cost, production cost, assembly difficulty and occupied space.
Disclosure of Invention
The invention solves the technical problem of providing a radio frequency connection structure which is convenient to produce and manufacture and can reduce the size aiming at the defects in the background technology.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a radio frequency connection structure, includes first circuit board, second circuit board and connection circuit board, connection circuit board electric connection is between first circuit board and second circuit board, connection circuit board one end and first circuit board fixed connection, connection circuit board other end and second circuit board pass through elastic connection spare swing joint.
Further, the elastic connecting piece comprises a spring piece and/or a flexible conductive piece.
Further, the elastic connecting piece comprises a spring piece and a flexible conductive piece, wherein the spring piece is fixedly arranged on a circuit connected with the circuit board and is elastically contacted and connected with a circuit of the second circuit board; the flexible conductive member is fixedly connected to the circuit of the second circuit board and is elastically contacted and connected to the circuit of the connecting circuit board.
Further, the elastic sheet comprises a fixed end and an elastic connecting end; the fixed end comprises two clamping parts which are oppositely arranged, and the connecting circuit board is clamped between the two clamping parts; the elastic connection end is in elastic contact connection with the second circuit board.
Further, the elastic sheet further comprises an inserting sheet, the inserting sheet is arranged at the front end of the elastic connection end, and a jack corresponding to the inserting sheet is arranged on the second circuit board.
Further, a clamping groove is formed in the connecting circuit board, and the flexible conductive piece is connected in the clamping groove in an elastic contact mode.
Further, the flexible conductive piece is conductive foam.
Further, the connection circuit board is provided with a clamping table, the first circuit board is provided with a bayonet matched with the clamping table, the clamping table is clamped into the bayonet, and the first circuit board is electrically connected with a circuit on the connection circuit board through welding.
Further, the circuit board comprises a fixing plate, and the first circuit board and the second circuit board are both fixed on the fixing plate.
Further, the first circuit board, the second circuit board and the fixing plate are clamped and/or screwed.
The beneficial effects achieved by the invention mainly comprise the following points: the elastic connecting piece is adopted, and the connecting circuit board and the second circuit board are allowed to have larger errors when being connected, so that signal transmission between the connecting circuit board and the second circuit board is not influenced, and the connecting is reliable, so that the assembly is easier, and the performance is more stable. And the fixing of the connecting circuit board and the first circuit board and the assembly of the whole structure are easy to produce and manufacture, and the elastic connecting piece is easy to obtain. In addition, the radio frequency signal transmission between the first circuit board and the second circuit board is carried out by adopting the connecting circuit board, more connecting points can be formed between the boards in a smaller space along the contact line of the boards, a plurality of signal transmission can be realized in the smaller space, the size of the whole structure can be reduced by connecting the coaxial structure or the coaxial line, the miniaturization of the whole structure is facilitated, and a plurality of signal communication between the boards can be realized more easily.
Drawings
FIG. 1 is a schematic diagram of an explosion structure of a radio frequency connection structure according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of an explosion structure of an elastic connector and a connection circuit board of a radio frequency connection structure according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a spring plate of a radio frequency connection structure according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a flexible conductive member of a radio frequency connection structure according to a first embodiment of the present invention;
fig. 5 is an exploded view of a radio frequency connection structure according to a second embodiment of the present invention.
The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar components; the terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limiting the present patent.
Detailed Description
The present invention will be described in further detail below with reference to the drawings and examples for the understanding of those skilled in the art.
Example 1
Referring to fig. 1 to 4, a radio frequency connection structure includes a first circuit board 1, a second circuit board 2 and a connection circuit board 3, wherein the connection circuit board 3 is electrically connected between the first circuit board 1 and the second circuit board 2, and is used for signal transmission between the first circuit board 1 and the second circuit board 2. One end of the connection circuit board 3 is fixedly connected with the first circuit board 1, namely, the connection circuit board 3 is fixedly connected with the mechanical structure of the first circuit board 1, and the connection circuit board 3 is electrically connected with the corresponding circuit of the first circuit board 1. The other end of the connecting circuit board 3 is movably connected with the second circuit board 2 through the elastic connecting piece 4, so that the integral structure formed by the connecting circuit board 3 and the first circuit board 1 is directly connected with the second circuit board 2 through the elastic connecting piece 4 during installation, and due to the adoption of the elastic connecting piece 4, larger errors are allowed during connection of the connecting circuit board 3 and the second circuit board 2, signal transmission of the connecting circuit board 3 and the second circuit board 2 cannot be influenced, and the connection is reliable, so that the assembly is easier and the performance is more stable. The fixing of the connecting circuit board 3 and the first circuit board 1, the assembly of the whole structure are easy to produce and manufacture, and the elastic connecting piece 4 is easy to obtain. In addition, the connection circuit board 3 is adopted to carry out radio frequency signal transmission between the first circuit board 1 and the second circuit board 2, more connection points can be formed between boards along board contact lines in a smaller space, multiple signal transmission can be realized in the smaller space, the size of the whole structure can be reduced by relative coaxial structure or coaxial line connection, the miniaturization of the whole structure is facilitated, and multiple signal communication between boards is easier to realize.
Referring to fig. 2-4, the elastic connection member 4 may adopt a structure or a combination of a conductive spring, a conductive spring sheet, a flexible conductive material, etc., in this embodiment, the spring sheet 41 and the flexible conductive member 42 are adopted to cooperate, the spring sheet 41 makes the connection between the connection circuit board 3 and the second circuit board 2 have a certain rigidity, and the flexible conductive member 42 ensures that the connection circuit board 3 and the second circuit board 2 are fully contacted, so that better electrical connection between the connection circuit board 3 and the second circuit board 2 is realized through the spring sheet 41 and the flexible conductive member 42. One of the elastic sheet 41 and the flexible conductive member 42 may serve as a connection of a signal line, and the other may serve as a ground connection. The spring 41 and the flexible conductive member 42 may be arranged in multiple groups according to the number of signals transmitted between the first circuit board 1 and the second circuit board 2.
Referring to fig. 2, the spring 41 is fixedly disposed on the connection circuit board 3, and is elastically contacted and connected to the circuit of the second circuit board 2. A plurality of slotting structures can be arranged at one end connected with the second circuit board 2 and the connecting circuit board 3, including the shrapnel connecting slotting 33 corresponding to the shrapnel 41 and the slotting 31 corresponding to the flexible conductive piece 42, so that the shrapnel 41 and the flexible conductive piece 42 can be separated to a set distance, namely, the distance requirement of the signal line and the ground wire is ensured, and the error touch of the flexible conductive piece and the shrapnel is avoided.
Referring to fig. 2 and 3, the spring 41 includes a fixed end 411 and an elastic connection end 412, the fixed end 411 is fixedly connected to the connection circuit board 3, and the elastic connection end 412 is elastically contacted with the pad 22 of the second circuit board 2. The fixed end 411 includes two clamping portions disposed opposite to each other, one is formed by bending the end of the spring plate, the other is formed by stamping, and the connection circuit board 3 is sandwiched between the two clamping portions. One of the two clamping parts is welded with a circuit bonding pad on one side of the circuit board 3, and a fixing bonding pad for fixing the clamping part is arranged on the other side of the circuit board 3, so that the two clamping parts can be welded with bonding pads on two sides of the circuit board 3 through welding, and the fixing of the elastic sheet 41 and the circuit board 3 is realized.
Referring to fig. 2 and 4, the flexible conductive member 42 may have a block structure, and may be fixedly connected to the circuit of the second circuit board 2, and may be soldered to the corresponding soldering pad of the second circuit board 2, preferably more than two soldering pads are provided, and more than two soldering points are provided on the flexible conductive member 42, so that soldering is easier. The other half of the flexible conductive member 42 is resiliently contact-connected to the circuit of the circuit board 3 and is in the card slot 31. The circuit of the connection circuit board 3 is generally arranged on the side, so that the flexible conductive member 42 can be preferably arranged in a concave structure, and the protruding parts on the two sides are contacted with the circuit on the side of the connection circuit board 3, and can also limit the connection circuit board 3 to a certain extent. The flexible conductive member 42 may have a simple block structure, and the protrusions on both sides of the flexible conductive member may be in contact with the circuit on the side of the connection circuit board 3 after the connection circuit board 3 is deformed by pressing. The flexible conductive member 42 may be made of a flexible conductive foam material commonly used for conductive foam.
In addition, the end of the elastic sheet 41 can be provided with an inserting sheet, the inserting sheet is arranged at the front end of the elastic connection end 412, and the second circuit board 2 is provided with a jack corresponding to the inserting sheet, so that the inserting sheet and the jack can be inserted to realize the preset position during the installation, and the installation is easier.
Referring to fig. 1, the connection circuit board 3 is provided with a clamping table 32, the first circuit board 1 is provided with a bayonet 11 matched with the clamping table 32, the clamping table 32 is clamped into the bayonet 11, so as to fix the mechanical structure of the first circuit board 1 and the connection circuit board 3, and the electrical connection of the corresponding circuits on the first circuit board 1 and the connection circuit board 3 is realized through welding.
The first circuit board 1, the second circuit board 2, and the connection circuit board 3 may each be a printed circuit board, and the number of layers of the printed circuit boards may be set as required. For example, the connection circuit board 3 may be provided with a four-layer structure in which the first layer is composed of signal lines and ground lines, and the second, third and fourth layers are ground lines, and the four-layer ground lines are connected through vias.
Example two
Referring to fig. 5, the present embodiment uses the rf connection structure of the first embodiment, and is used as the rf connection structure of the vehicle antenna. In addition to the components of the first embodiment, the radio frequency connection structure of the present embodiment further includes a fixing board 5, where the first circuit board 1 and the second circuit board 2 are fixed on the fixing board 5, and the first circuit board 1 and the second circuit board 2 are connected with the fixing board 5 through a clamping connection and a screw connection, or are used in cooperation with each other.
The vehicle antenna further comprises a housing 6, an antenna structure and an upper housing 7, wherein the housing 6 and the fixing plate 5 can be used as a fixing structure of the first circuit board 1 and the second circuit board 2 together.
In this embodiment, the first circuit board 1 is connected to each antenna structure of the vehicle-mounted antenna, and the second circuit board 2 is provided with signal sources of each antenna, so that radio frequency connection between the first circuit board 1 and the second circuit board 2 is required to be achieved through the connection circuit board 3, thereby forming a complete vehicle-mounted antenna. When the whole structure is assembled, the elastic sheet 41 is fixedly connected with the connecting circuit board 3, and the flexible conductive piece 42 is fixed on the corresponding bonding pad 21 of the second circuit board 2; the first circuit board 1 is fixedly connected with the connecting circuit board 3, and the circuit conduction is realized; finally, the connecting circuit board 3 in the integral structure of the first circuit board 1 and the connecting circuit board 3 is inserted into the slot of the fixed board 5, the first circuit board 1 and the second circuit board 2 are respectively fixed on two sides of the fixed board 5, and meanwhile, the elastic contact between the elastic sheet 41 on the connecting circuit board 3 and the corresponding bonding pad 22 on the second circuit board 2 and the elastic contact between the flexible conductive piece 42 and the circuit on the side edge of the slot 31 on the connecting circuit board 3 are realized, namely, the mechanical connection and the electrical connection between the integral structure of the first circuit board 1 and the connecting circuit board 3 and the second circuit board 2 are realized. The housing 6 and the second circuit board 2 can be fixed by the same set of screws, and the upper housing is also fixed on the fixing plate 5, so that the installation of the whole antenna structure is realized.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (5)
1. A radio frequency connection structure, characterized in that: the circuit board comprises a first circuit board (1), a second circuit board (2) and a connecting circuit board (3), wherein the connecting circuit board (3) is electrically connected between the first circuit board (1) and the second circuit board (2), one end of the connecting circuit board (3) is fixedly connected with the first circuit board (1), and the other end of the connecting circuit board (3) is movably connected with the second circuit board (2) through an elastic connecting piece (4); the elastic connecting piece (4) comprises an elastic piece (41) and a flexible conductive piece (42), wherein the elastic piece (41) is fixedly arranged on a circuit connected with the circuit board (3) and is elastically contacted and connected with a circuit of the second circuit board (2); the flexible conductive piece (42) is fixedly connected to the circuit of the second circuit board (2) and is elastically contacted and connected to the circuit of the connecting circuit board (3); the elastic sheet (41) comprises a fixed end (411) and an elastic connecting end (412); the fixed end (411) comprises two clamping parts which are oppositely arranged, and the connecting circuit board (3) is clamped between the two clamping parts; the elastic connection end (412) is elastically contacted and connected to the second circuit board (2); the elastic sheet (41) further comprises an inserting sheet, the inserting sheet is arranged at the front end of the elastic connecting end (412), and a jack corresponding to the inserting sheet is arranged on the second circuit board (2); the connecting circuit board (3) is provided with a clamping groove (31), and the flexible conductive piece (42) is elastically contacted and connected in the clamping groove (31).
2. The radio frequency connection according to claim 1, wherein: the flexible conductive member (42) is conductive foam.
3. The radio frequency connection according to claim 1, wherein: the connecting circuit board (3) is provided with a clamping table (32), the first circuit board (1) is provided with a bayonet (11) matched with the clamping table (32), the clamping table (32) is clamped into the bayonet (11), and the first circuit board (1) is electrically connected with a circuit on the connecting circuit board (3) through welding.
4. A radio frequency connection according to any one of claims 1 to 3, wherein: the circuit board also comprises a fixing plate (5), and the first circuit board (1) and the second circuit board (2) are both fixed on the fixing plate (5).
5. The radio frequency connection according to claim 4, wherein: the first circuit board (1) and the second circuit board (2) are clamped and/or screwed with the fixing plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811381420.3A CN109449617B (en) | 2018-11-20 | 2018-11-20 | Radio frequency connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811381420.3A CN109449617B (en) | 2018-11-20 | 2018-11-20 | Radio frequency connection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109449617A CN109449617A (en) | 2019-03-08 |
| CN109449617B true CN109449617B (en) | 2023-10-20 |
Family
ID=65553314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811381420.3A Active CN109449617B (en) | 2018-11-20 | 2018-11-20 | Radio frequency connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109449617B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109449617A (en) | 2019-03-08 |
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